CN114749781B - Environment-friendly electronic product spot welding device and method with smoke absorption loop - Google Patents
Environment-friendly electronic product spot welding device and method with smoke absorption loop Download PDFInfo
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- CN114749781B CN114749781B CN202210441950.2A CN202210441950A CN114749781B CN 114749781 B CN114749781 B CN 114749781B CN 202210441950 A CN202210441950 A CN 202210441950A CN 114749781 B CN114749781 B CN 114749781B
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- 238000003466 welding Methods 0.000 title claims abstract description 315
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 108
- 239000000779 smoke Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 23
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims description 66
- 238000006073 displacement reaction Methods 0.000 claims description 46
- 239000002910 solid waste Substances 0.000 claims description 35
- 238000013016 damping Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 102220305346 rs1555469504 Human genes 0.000 claims description 2
- 239000003517 fume Substances 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to an environment-friendly electronic product spot welding device with a smoke absorption loop, which comprises an electric welding gun, a welding head and a welding head, wherein the electric welding gun is used for spot welding electronic products; the stabilizing mechanism is connected with the electric welding gun and used for keeping the stability of the electric welding gun, and comprises a first sliding unit and a supporting unit; the absorption mechanism is connected with the electric welding gun and is used for absorbing the smoke of the welding spots; the control mechanism is used for adjusting the supporting force of the stabilizing mechanism and the rotating speed of the absorption unit according to the deviation distance of the spot welding position, wherein the deviation distance of the spot welding position is larger than a preset value, the control mechanism judges and adjusts the supporting force of the supporting unit so that the spot welding position accords with a preset standard, and the control mechanism obtains the stability degree of the current electric welding gun according to the detection mechanism and adjusts the supporting force of the supporting unit according to the stability degree of the current electric welding gun so that the spot welding of an electronic product accords with the preset standard.
Description
Technical Field
The invention relates to the field of spot welding of electronic products, in particular to an environment-friendly spot welding device for electronic products, which is provided with a smoke absorption loop.
Background
Because of the precision of electronic products, the electronic products generally need to include the following four steps after entering a welding step: 1. spot welding: welding an enameled wire lead-out contact of the electronic product; 2. breaking wire: cutting off the tail of the welded enameled wire; 3. and (3) measuring: detecting welding quality of the electronic element after welding and wire breakage; 4. dispensing: and (3) carrying out dispensing solidification and insulation protection on the qualified electronic element by using a dispensing machine. The spot welding plays a vital role in the subsequent use quality problem of the electronic product, the traditional spot welding mode is mostly carried out manually, in the manual moving process, due to the fact that the force is different from the force in the manual moving process, the electric welding gun or the electronic product can be offset in the moving process, the two workpiece welding points are offset, on one hand, the workpiece is unstable to fix, on the other hand, damage to the electronic product can be caused, and hidden danger can exist in the later use process.
The Chinese patent ZL201210185599.1 discloses an autonomous mobile type shaking hot wire TIG welding machine robot system for welding large-scale precise equipment, and provides a system which can autonomously and flexibly move, reliably adsorb and implement shaking hot wire TIG all-position welding operation on the surface of the precise equipment and has good comprehensive performance, but the technical problem of ensuring that the spot welding position meets the preset standard is not solved.
Disclosure of Invention
Therefore, the invention provides an environment-friendly electronic product spot welding device with a smoke absorption loop, which can solve the technical problem that the rotating speed of an absorption mechanism and the supporting force of a stabilizing mechanism cannot be adjusted according to the deviation distance of spot welding positions so that the spot welding positions meet the preset standard.
In order to achieve the above object, in one aspect, the present invention provides an environmental protection type electronic product spot welding device provided with a smoke absorption loop, comprising:
an electric welding gun for spot welding electronic products;
the stabilizing mechanism is connected with the electric welding gun and used for keeping the stability of the electric welding gun, and comprises a first sliding unit and a supporting unit;
the absorption mechanism is connected with the electric welding gun and used for absorbing smoke of welding spots, the absorption mechanism comprises an absorption unit and a rotation unit for controlling the absorption unit to rotate, the absorption unit comprises an absorption unit arranged in an absorption pipe, an air suction unit for controlling the absorption amount of the smoke and a filtering unit for filtering the smoke, the absorption unit comprises an absorption net for absorbing solid waste and a weight sensor arranged on the absorption net, and the weight sensor is used for acquiring the weight of the solid waste on the absorption net;
The detection mechanism is connected with the supporting unit and used for acquiring the stability of the electric welding gun;
the control mechanism is connected with the electric welding gun, the stabilizing mechanism, the absorbing mechanism and the detecting mechanism and is used for adjusting the supporting force of the stabilizing mechanism and the rotating speed of the absorbing unit according to the deviation distance of the spot welding position, wherein the deviation distance of the spot welding position obtained by the control mechanism is larger than a preset value, the control mechanism judges and adjusts the supporting force of the supporting unit so that the spot welding position accords with a preset standard, the control mechanism obtains the stability degree of the current electric welding gun according to the detecting mechanism and adjusts the supporting force of the supporting unit according to the stability degree of the current electric welding gun, and meanwhile, the control mechanism controls the rotating unit according to the adsorption quantity obtained by the adsorbing unit so as to adjust the rotating speed of the absorbing unit, so that the spot welding of an electronic product accords with the preset standard.
Further, the control mechanism obtains the deviation distance D of the spot welding position and compares the deviation distance D with the deviation distance D of the preset spot welding position of the control mechanism, and judges whether the current spot welding position meets the preset standard or not, wherein,
when D is less than or equal to D1, the control mechanism judges that the current spot welding position meets the preset standard;
When D1 is more than D and less than D2, the control mechanism judges that the current electric welding position meets a preset standard, and the control mechanism adjusts the rotation rate of the absorption unit according to the absorption amount obtained by the absorption unit;
when D is more than or equal to D2, the control mechanism judges that the current spot welding position does not meet the preset standard, and the control mechanism adjusts the supporting force of the supporting unit of the stabilizing mechanism according to the stability of the electric welding gun acquired by the detection mechanism;
the control mechanism presets a spot welding position deviation distance D, a first preset spot welding position deviation distance D1 and a second preset spot welding position deviation distance D2.
Further, the control mechanism obtains the current spot welding position deviation distance from a first preset spot welding position deviation distance to a second preset spot welding position deviation distance, the control mechanism obtains the adsorption quantity delta M of the adsorption unit in a preset time, compares the obtained adsorption quantity with a preset adsorption quantity M, and judges whether the current spot welding solid waste generation quantity meets a preset standard or not, wherein,
when Deltam is less than or equal to M1, the control mechanism judges that the current spot-welded solid waste production meets the preset standard;
when M1 < [ delta ] M < M2, the control mechanism judges that the current spot-welded solid waste production does not meet the preset standard, and the control mechanism improves the rotation rate of the absorption unit;
When Deltam is more than or equal to M2, the control mechanism judges that the current generation amount of the solid waste subjected to spot welding does not meet the preset standard, and the control mechanism improves the rotation speed of the absorption unit and simultaneously improves the heating temperature of the electric welding gun;
wherein, the control mechanism presets the adsorption quantity M, sets a first preset adsorption quantity M1 and a second preset adsorption quantity M2.
Further, the control means acquires an adsorption amount between a first preset adsorption amount and a second preset adsorption amount, the control means determines that the current spot-welded solid waste generation amount does not meet a preset standard, the control means increases the rotation rate p to p1 of the absorption unit, and sets p1=p× (1+ (Δm-M1) × (M2- Δm)/(m1×m2)).
Further, the control means obtains an adsorption amount equal to or larger than a second preset adsorption amount, and increases the rotation rate p of the adsorption unit to p2, sets p2=p× (1+ (Δm-M2)/M2), and simultaneously increases the heating temperature w to w1 of the electric welding gun, and sets w1=w× (1+ (Δm-M2)/M2).
Further, the rotating unit comprises a rotator connected with the absorbing unit and a first motor for controlling the rotating speed of the rotator, wherein the first motor is connected with the rotator, the absorbing unit comprises an absorbing pipe and an air suction pump for controlling the absorbing amount of smoke, the control mechanism presets a rotating speed P, the control mechanism obtains the rotating speed of the absorbing unit and compares the rotating speed with the preseting rotating speed to regulate the power parameter and the air suction pump pressure of the first motor,
When pi is less than or equal to P, the control mechanism increases the power parameter F1 of the first motor to F11;
when pi is more than P, the control mechanism increases the power parameter F1 of the first motor to F12, and the control mechanism increases the pressure Fx of the suction pump to Fx1;
where i=1, 2.
Further, the supporting unit comprises a first supporting device contacted with one side of the electric welding gun and a second supporting device contacted with the other side of the electric welding gun, wherein the first supporting device comprises a first connecting plate, a second motor for controlling the supporting force of the first connecting plate and a first spring for damping, the second supporting device comprises a second connecting plate, a third motor for controlling the supporting force of the second connecting plate and a second spring for damping, the detecting mechanism comprises a first displacement sensor connected with the first spring and a second displacement sensor connected with the second spring, and the detecting mechanism obtains the stability s of the electric welding gun according to the displacement s1 of the first spring and the displacement s2 of the second spring obtained by the first displacement sensor, and sets s= (1+ (s 1-s 10)/s 10) × (1+ (s 2-s 20)/s 20), wherein s10 is a standard value of the displacement of the first spring preset by the controlling mechanism, and s20 is a standard value of the displacement of the second spring preset by the controlling mechanism.
Further, the control mechanism obtains the deviation distance of the spot welding position to be more than or equal to the second preset deviation distance of the spot welding position, the control mechanism judges whether the current electric welding gun is stable or not according to the comparison between the stability degree S of the current electric welding gun obtained by the detection mechanism and the preset stability degree S0 of the control mechanism, wherein,
when S is less than S0, the control mechanism judges that the current electric welding gun is stable, and the control mechanism adjusts the positioning of the electric welding gun and simultaneously improves the absorption pump pressure Fx 'to Fx1';
when S is more than or equal to S0, the control mechanism judges that the current electric welding gun is unstable, and the control mechanism judges to adjust the supporting force of the supporting unit according to the displacement of the first spring and the displacement of the second spring.
Further, the control mechanism judges that the current electric welding gun is unstable, the control mechanism obtains a difference Deltas between a displacement S1 of the first spring and a displacement S2 of the second spring, sets Deltas=s1-S2, compares the difference with a preset difference DeltaS, adjusts the supporting force of the supporting unit,
when Deltas is less than or equal to DeltaS 1, the control mechanism increases the third motor power parameters F3 to F31 and decreases the second motor power parameters F2 to F21;
when DeltaS 1 < DeltaS < DeltaS2, the control mechanism increases the third motor power parameters F3 to F32, and the control mechanism increases the second motor power parameters F2 to F22;
When Deltas is more than or equal to DeltaS 2, the control mechanism increases the second motor power parameters F2 to F23 and decreases the third motor power parameters F3 to F32;
wherein, the control mechanism presets a difference DeltaS, sets a first preset difference DeltaS 1, and a second preset difference DeltaS 2.
In another aspect, the invention provides an environmentally friendly spot welding method for electronic products, comprising,
step S1, placing an electronic product to be spot-welded on a placing table, and clamping the electronic product to be spot-welded by a clamping mechanism;
s2, the electric welding gun performs spot welding on the position to be spot-welded;
step S3, the control mechanism adjusts the supporting force of the stabilizing mechanism and the rotating speed of the absorption unit according to the deviation distance of the spot welding position;
and S4, the absorption mechanism absorbs solid waste and smoke around spot welding according to the acquired rotation rate of the absorption unit and the pressure of the suction pump.
Compared with the prior art, the invention has the beneficial effects that the control mechanism is used for adjusting the supporting force of the stabilizing mechanism and the rotating speed of the absorption unit according to the deviation distance of the spot welding position, wherein the deviation distance of the spot welding position obtained by the control mechanism is larger than a preset value, the control mechanism judges and adjusts the supporting force of the supporting unit so that the spot welding position meets the preset standard, the control mechanism obtains the stability degree of the current electric welding gun according to the detection mechanism and adjusts the supporting force of the supporting unit according to the stability degree of the current electric welding gun, and meanwhile, the control mechanism controls the rotating unit according to the adsorption amount obtained by the adsorption unit so as to adjust the rotating speed of the absorption unit, so that the spot welding of an electronic product meets the preset standard.
In particular, the control mechanism divides the preset spot welding position deviation distance into two definite standards, the control mechanism compares the obtained spot welding position deviation distance with the preset spot welding position deviation distance, whether the spot welding position is accurate or not is judged, wherein when the spot welding position deviation distance obtained by the control mechanism is smaller than or equal to the first preset spot welding position deviation distance, the current spot welding position is accurate, the spot welding position accords with the preset standard, when the spot welding position deviation distance obtained by the control mechanism is between the first preset spot welding position deviation distance and the second preset spot welding position deviation distance, the current spot welding position is accurate, but a certain deviation exists, in order to avoid deviation expansion, the control mechanism judges whether the current spot welding operation process is reasonable or not through the adsorption quantity obtained by the adsorption unit, further adjusts the rotation rate of the adsorption unit, when the spot welding position deviation distance obtained by the control mechanism is larger than or equal to the second preset spot welding position deviation distance, the current spot welding position is inaccurate, the spot welding position does not accord with the preset standard, the spot welding position is accurate for correcting the spot welding position of the electric welding gun, the stability of the electric welding gun obtained by the control mechanism is ensured, and the support force of the support unit is adjusted by the control mechanism.
In particular, the control mechanism is provided with the adsorption quantity, whether the current generated solid waste meets the preset standard or not is judged by comparing the acquired adsorption quantity with the preset adsorption quantity, and further whether the operation of the current spot welding position is in compliance is judged, wherein if the adsorption quantity of the current spot welding position is smaller than or equal to the first preset adsorption quantity, the solid waste generated in the current spot welding process is indicated to meet the preset standard, and further the operation compliance of the current spot welding position is indicated, if the adsorption quantity of the current spot welding position is acquired by the control mechanism between the first preset adsorption quantity and the second preset adsorption quantity, the current solid waste is indicated to be more, in order to avoid the defect that the smoke quantity is larger in the solid waste generating process, the deviation distance of the spot welding position is not accurately acquired, the control mechanism improves the rotation rate of the absorption unit, so as to improve the absorption efficiency, and if the adsorption quantity of the current spot welding position is larger than or equal to the second preset adsorption quantity, the current spot welding process generates a large quantity of solid waste, the reason that the spot welding temperature is too low is caused, the welding material is incompletely combusted, and the control mechanism can ensure the rotation rate of the absorption unit to be improved, and the smoke heating effect is improved.
In particular, the invention is provided with the air suction pump capable of controlling the air suction amount to avoid poor absorption effect caused by overlarge rotation speed of the absorption unit by adjusting the power parameter of the first motor so as to control the rotation speed of the rotator, wherein the rotation speed of the absorption unit acquired by the control mechanism is smaller than or equal to the rotation speed, the rotation speed of the absorption unit is increased by adjusting the power parameter of the first motor, the rotation speed of the absorption unit is larger than the preset rotation speed by the control mechanism, the pressure of the air suction pump is increased while the rotation speed is increased by the control mechanism, and the absorption of flue gas and waste which are caused by overlarge rotation speed is not in accordance with the preset standard is avoided.
In particular, the detection mechanism is connected with the supporting unit, the detection mechanism acquires the displacement of the first support and the displacement of the second support, which are different from the standard value of the displacement of the first support, the stability of the electric welding gun is comprehensively acquired, the stability of the electric welding gun is acquired according to the displacement of the detection mechanism, the stability of the electric welding gun is compared with the preset stability by the control mechanism, whether the current electric welding gun is stable in the spot welding process or not is judged, wherein the stability of the current electric welding gun is smaller than the preset stability by the control mechanism, the fact that the current electric welding gun is stable in spot welding is indicated, the reason that the deviation distance of the spot welding position exceeds the second preset stability is that the spot welding operation of the electric welding gun is inaccurate is that the positioning of the electric welding gun is inaccurate, the control mechanism judges that the positioning of the electric welding gun is adjusted, meanwhile, the pressure of the absorption pump is improved, the fact that the deviation distance of the spot welding position is influenced due to the fact that the smoke quantity is overlarge is not accurate is achieved is avoided, the stability of the current electric welding gun is judged to be greater than or equal to the preset stability, the control mechanism judges that the stability of the current electric welding gun is unstable, and the control mechanism judges whether the support force of the supporting unit is regulated according to the displacement of the first spring and the second spring to the stability.
In particular, when the control mechanism judges that the current welding gun is unstable, the control mechanism acquires the difference value of the first spring displacement amount and the second spring displacement amount and compares the difference value with a preset value, and adjusts the power parameters of the second motor and the third motor to control the stability degree of the welding gun, wherein when the acquired difference value is smaller than or equal to a first preset difference value, the current welding gun is indicated to deviate towards the second support, the control mechanism improves the supporting force of the second support by adjusting the power parameter of the third motor, meanwhile, the power parameter of the second motor is adjusted to reduce the supporting force of the first support, and when the acquired difference value is between the first preset difference value and the second preset difference value, the control mechanism guarantees the stability of the welding gun by simultaneously improving the supporting force of the first support and the second support, and when the acquired difference value is larger than or equal to the second preset difference value, the current welding gun is indicated to deviate towards the first support, the control mechanism adjusts the power parameter of the third motor to reduce the supporting force of the second support, and meanwhile, the power parameter of the second motor is adjusted to improve the supporting force of the first support, so that the stability of the welding gun is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a spot welding device for an environment-friendly electronic product with a smoke absorption loop according to an embodiment;
FIG. 2 is a schematic view of a stabilizing mechanism according to an embodiment of the invention;
FIG. 3 is a schematic view of an absorption mechanism according to an embodiment of the invention;
FIG. 4 is a schematic view of a placement mechanism according to an embodiment of the invention;
fig. 5 is a schematic diagram of a spot welding method of an environment-friendly electronic product according to an embodiment of the invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, a schematic structural diagram of an environment-friendly electronic product spot welding device with a smoke absorption loop according to an embodiment of the invention includes an electric welding gun 1 for spot welding electronic products; a stabilizing mechanism 2 connected with the electric welding gun and used for keeping the stability of the electric welding gun, wherein the stabilizing mechanism comprises a first sliding unit and a supporting unit; the absorption mechanism 3 is connected with the electric welding gun and is used for absorbing the smoke of welding spots; the detection mechanism is connected with the supporting unit and used for acquiring the stability of the electric welding gun; the control mechanism is connected with the electric welding gun, the stabilizing mechanism, the absorbing mechanism and the detecting mechanism and is used for adjusting the supporting force of the stabilizing mechanism and the rotating speed of the absorbing unit according to the deviation distance of the spot welding position, wherein the deviation distance of the spot welding position obtained by the control mechanism is larger than a preset value, the control mechanism judges and adjusts the supporting force of the supporting unit so that the spot welding position accords with a preset standard, the control mechanism obtains the stability degree of the current electric welding gun according to the detecting mechanism and adjusts the supporting force of the supporting unit according to the stability degree of the current electric welding gun, and meanwhile, the control mechanism controls the rotating unit according to the adsorption quantity obtained by the adsorbing unit so as to adjust the rotating speed of the absorbing unit, so that the spot welding of an electronic product accords with the preset standard.
Referring to fig. 2, a schematic structural diagram of a stabilizing mechanism according to an embodiment of the present invention is shown, which includes a first sliding unit and a supporting unit, wherein the first sliding unit includes a first sliding rod, a first collar 22 disposed on the first sliding rod, a second sliding rod 20, and a second collar 28 disposed on the second sliding rod, the first collar is connected to a first support, the second collar is connected to a second support, the first support includes a first connection plate 23, a second motor 24 for controlling the supporting force of the first connection plate, and a first spring 27 for damping, the second support includes a second connection plate 29, a third motor 25 for controlling the supporting force of the second connection plate, and a second spring 26 for damping.
Referring to fig. 3, a schematic structural diagram of an absorption mechanism according to an embodiment of the present invention includes an absorption unit and a rotation unit for controlling rotation of the absorption unit, wherein the rotation unit includes a rotator 31 and a fourth motor 32 for controlling a rotation rate of the rotator, the absorption unit includes an absorption unit disposed in an absorption pipe 33, an air suction unit for controlling an absorption amount of flue gas, and a filtering unit for filtering flue gas, the absorption unit includes an absorption net 35 for absorbing solid waste, and a weight sensor 34 disposed on the absorption net, wherein the weight sensor is used for obtaining a weight of the solid waste on the absorption net;
Specifically, in the environment-friendly electronic product spot welding device with the smoke absorption loop arranged on the filtering unit, the filtering unit 4 in the absorption mechanism can absorb smoke generated by spot welding of raw materials according to the arrangement of the raw materials in the electric welding gun.
Referring to fig. 4, a schematic structural diagram of a placement mechanism according to an embodiment of the present invention includes a placement plate 53 for placing an electronic product to be spot-welded, and a clamping mechanism for clamping the electronic product to be spot-welded, including a first clamping member 52 and a second clamping member 51.
The control mechanism obtains the deviation distance D of the spot welding position and compares the deviation distance D with the deviation distance D of the preset spot welding position of the control mechanism, and judges whether the current spot welding position meets the preset standard or not, wherein,
when D is less than or equal to D1, the control mechanism judges that the current spot welding position meets the preset standard;
When D1 is more than D and less than D2, the control mechanism judges that the current electric welding position meets a preset standard, and the control mechanism adjusts the rotation rate of the absorption unit according to the absorption amount obtained by the absorption unit;
when D is more than or equal to D2, the control mechanism judges that the current spot welding position does not meet the preset standard, and the control mechanism adjusts the supporting force of the supporting unit of the stabilizing mechanism according to the stability of the electric welding gun acquired by the detection mechanism;
the control mechanism presets a spot welding position deviation distance D, a first preset spot welding position deviation distance D1 and a second preset spot welding position deviation distance D2.
Specifically, the control mechanism divides the preset spot welding position deviation distance into two definite standards, the control mechanism compares the obtained spot welding position deviation distance with the preset spot welding position deviation distance, whether the spot welding position is accurate or not is judged, wherein when the spot welding position deviation distance obtained by the control mechanism is smaller than or equal to the first preset spot welding position deviation distance, the current spot welding position is accurate, the spot welding position accords with the preset standard, when the spot welding position deviation distance obtained by the control mechanism is between the first preset spot welding position deviation distance and the second preset spot welding position deviation distance, the current spot welding position is accurate, but a certain deviation exists, in order to avoid deviation expansion, the control mechanism judges whether the current spot welding operation process is reasonable or not through the adsorption quantity obtained by the adsorption unit, further adjusts the rotation rate of the adsorption unit, when the spot welding position deviation distance obtained by the control mechanism is larger than or equal to the second preset spot welding position deviation distance, the current spot welding position is inaccurate, the spot welding position does not accord with the preset standard, the spot welding position is accurate for correcting the spot welding position of an electric welding gun, the stability of the electric welding gun obtained by the control mechanism is ensured, and the support force of the support unit is adjusted by the control mechanism.
Specifically, the method for obtaining the deviation distance of the spot welding position in the embodiment of the invention is not limited as long as the deviation condition between the actual position and the original position of the spot welding can be obtained, and the embodiment of the invention provides a preferred embodiment, specifically, an image processing mechanism is arranged above an electronic element to be spot welded, the preset position to be spot welded is stored in the image processing mechanism, when the electric welding machine is used for spot welding the position to be spot welded, the image processing mechanism obtains an image after spot welding, and the difference between the distance between the preset position center point and the center point of the position after spot welding is set as the deviation distance of the spot welding position.
Wherein the control mechanism obtains the current spot welding position deviation distance between a first preset spot welding position deviation distance and a second preset spot welding position deviation distance, the control mechanism obtains the adsorption quantity delta M of the adsorption unit in preset time, compares the obtained adsorption quantity with a preset adsorption quantity M, judges whether the current spot welding solid waste generation quantity meets a preset standard or not, and further judges whether the current spot welding solid waste generation quantity meets the preset standard or not,
when Deltam is less than or equal to M1, the control mechanism judges that the current spot-welded solid waste production meets the preset standard;
when M1 < [ delta ] M < M2, the control mechanism judges that the current spot-welded solid waste production does not meet the preset standard, and the control mechanism improves the rotation rate of the absorption unit;
When Deltam is more than or equal to M2, the control mechanism judges that the current generation amount of the solid waste subjected to spot welding does not meet the preset standard, and the control mechanism improves the rotation speed of the absorption unit and simultaneously improves the heating temperature of the electric welding gun;
wherein, the control mechanism presets the adsorption quantity M, sets a first preset adsorption quantity M1 and a second preset adsorption quantity M2.
Specifically, the control means acquires an adsorption amount between a first preset adsorption amount and a second preset adsorption amount, determines that the solid waste generation amount of the current spot welding does not meet a preset standard, increases the rotation rate p of the absorption unit to p1, and sets p1=p× (1+ (Δm-M1) × (M2- Δm)/(m1×m2)).
Specifically, the control means obtains the adsorption amount equal to or larger than a second preset adsorption amount, and increases the rotation rate p of the adsorption unit to p2, sets p2=p× (1+ (Δm-M2)/M2), and simultaneously increases the heating temperature w to w1 of the electric welding gun, and sets w1=w× (1+ (Δm-M2)/M2).
The control mechanism is provided with the adsorption quantity, whether the current generated solid waste meets the preset standard or not is judged by comparing the acquired adsorption quantity with the preset adsorption quantity, and further whether the operation of the current spot welding position is in compliance or not is judged, wherein if the adsorption quantity of the current spot welding position is smaller than or equal to the first preset adsorption quantity, the solid waste generated in the current spot welding process is indicated to meet the preset standard, and further the operation compliance of the current spot welding position is indicated, if the adsorption quantity of the current spot welding position is acquired by the control mechanism between the first preset adsorption quantity and the second preset adsorption quantity, the current solid waste is indicated to be more, in order to avoid the defect that the deviation distance of the spot welding position is inaccurate due to the fact that the smoke quantity is larger in the solid waste generating process, the control mechanism improves the rotation rate of an absorption unit to improve the absorption efficiency, and the heating effect of the welding gun is also improved due to the fact that the spot welding material is incompletely combusted due to the fact that the spot welding temperature is too low in the spot welding process is caused.
Specifically, the solid waste generated in the spot welding process according to the embodiment of the present invention is not limited as long as it is generated in the spot welding process and can be adsorbed by the adsorption net, and includes cooled sparks, molten metal, particles of slag, and the like.
Wherein the rotating unit comprises a rotator connected with the absorbing unit and a first motor for controlling the rotating speed of the rotator, the first motor is connected with the rotator, the absorbing unit comprises an absorbing pipe and an air suction pump for controlling the absorbing amount of smoke, the control mechanism presets a rotating speed P, the control mechanism obtains the rotating speed of the absorbing unit and compares the rotating speed with the preseting rotating speed to regulate the power parameter and the air suction pump pressure of the first motor,
when pi is less than or equal to P, the control mechanism increases the power parameter F1 of the first motor to F11, and F11=F1× (1+ (P-pi)/P) is set;
when pi > P, the control mechanism increases the power parameter F1 of the first motor to F12, and sets F12=F1× (1+ (pi-P)/P), and the control mechanism increases the pressure Fx of the suction pump to Fx1, and sets fx1=fx× (1+ (pi-P)/P);
where i=1, 2.
Specifically, the embodiment of the present invention does not limit the rotator, as long as it can satisfy the rotation of the absorption unit, and the rotator may be a structure having a rotation capability such as a gear, a turntable, or the like.
The invention is provided with a rotating speed control device which is used for controlling the rotating speed of a rotator through adjusting the power parameter of a first motor, and a suction pump which is used for controlling the suction amount is arranged at the same time so as to avoid poor absorption effect caused by overlarge rotating speed of an absorption unit.
Specifically, the supporting unit comprises a first supporting device contacted with one side of the electric welding gun and a second supporting device contacted with the other side of the electric welding gun, wherein the first supporting device comprises a first connecting plate, a second motor for controlling the supporting force of the first connecting plate and a first spring for damping, the second supporting device comprises a second connecting plate, a third motor for controlling the supporting force of the second connecting plate and a second spring for damping, the detecting mechanism comprises a first displacement sensor connected with the first spring and a second displacement sensor connected with the second spring, the detecting mechanism obtains the stability s of the electric welding gun according to the displacement s1 of the first spring and the displacement s2 of the second spring obtained by the first displacement sensor, and s= (1+ (s 1-s 10)/s 10) × (1+ (s 2-s 20)/s 20) is set, wherein s10 is a standard value of the first spring displacement of the control mechanism, and s20 is a standard value of the second spring displacement of the control mechanism.
Wherein the control mechanism obtains the deviation distance of the spot welding position to be more than or equal to the second preset deviation distance of the spot welding position, the control mechanism judges whether the current electric welding gun is stable or not according to the comparison between the stability degree S of the current electric welding gun obtained by the detection mechanism and the preset stability degree S0 of the control mechanism,
when S is less than S0, the control mechanism judges that the current electric welding gun is stable, the control mechanism adjusts the positioning of the electric welding gun, and simultaneously improves the absorption pump pressure Fx 'to Fx1', and Fx1 '=Fx' × (1+ (S0-S)/S0);
when S is more than or equal to S0, the control mechanism judges that the current electric welding gun is unstable, and the control mechanism judges to adjust the supporting force of the supporting unit according to the displacement of the first spring and the displacement of the second spring.
Specifically, a detection mechanism connected with a supporting unit is arranged, the detection mechanism acquires the displacement of a first support and the displacement of a second support, which are different from the standard value of the displacement of the first support, the stability of the electric welding gun is comprehensively acquired, the stability of the electric welding gun is acquired according to the displacement of the detection mechanism, the stability of the electric welding gun is compared with the preset stability by a control mechanism, whether the current electric welding gun is stable in the spot welding process or not is judged, wherein the stability of the current electric welding gun is smaller than the preset stability by the control mechanism, the fact that the current electric welding gun is stable in spot welding is indicated, the reason that the deviation distance of the spot welding position exceeds the deviation distance of the second preset spot welding position is because the positioning of the spot welding operation of the electric welding gun is inaccurate is that the control mechanism judges the positioning of the electric welding gun, meanwhile, the pressure of an absorption pump is improved, the fact that the deviation distance of the spot welding position is not accurately acquired due to the fact that the smoke quantity is overlarge is avoided is judged, the stability of the current electric welding gun is judged by the control mechanism, the stability of the current electric welding gun is larger than or equal to the preset stability degree, and the control mechanism judges that the spot welding of the current electric welding gun is unstable according to the displacement of a first spring and the second spring is judged to regulate the supporting force of the supporting unit according to the preset stability of the electric welding gun.
Wherein the control mechanism judges that the current electric welding gun is unstable, the control mechanism acquires a difference delta S between a displacement S1 of the first spring and a displacement S2 of the second spring, sets delta s=s1-S2, compares the difference with a preset difference delta S, adjusts the supporting force of the supporting unit, wherein,
when Δs is less than or equal to Δs1, the control mechanism increases the third motor power parameters F3 to F31, sets f31=f3× (1+0.8× (Δs1- Δs)/Δs1), decreases the second motor power parameters F2 to F21, sets f21=f2× (1-0.8× (Δs1- Δs)/Δs1);
when Δs1 < Δs2, the control means increases the third motor power parameters f3 to F32, sets f32=f3× (1+0.5× (Δs- Δs1) × (Δs2- Δs)/(Δs1×Δs2)), and the control means increases the second motor power parameters f2 to F22, sets f22=f2× (1+0.5× (Δs- Δs1) × (Δs2- Δs)/(Δs1×Δs2));
when Δs is not less than Δs2, the control means increases the second motor power parameters F2 to F23, sets f23=f2× (1-0.8× (Δs- Δs2)/Δs2), decreases the third motor power parameters F3 to F32, sets f32=f3× (1-0.8× (Δs- Δs2)/Δs2);
wherein, the control mechanism presets a difference DeltaS, sets a first preset difference DeltaS 1, and a second preset difference DeltaS 2.
Specifically, when the control mechanism judges that the current welding gun is unstable, the control mechanism acquires the difference value of the first spring displacement amount and the second spring displacement amount and compares the difference value with a preset value, the power parameters of the second motor and the third motor are adjusted to control the stability degree of the welding gun, when the acquired difference value is smaller than or equal to a first preset difference value, the current welding gun is indicated to deviate towards the second support, the control mechanism improves the supporting force of the second support through adjusting the power parameter of the third motor, meanwhile, the power parameter of the second motor is adjusted to reduce the supporting force of the first support, when the acquired difference value is between the first preset difference value and the second preset difference value, the control mechanism guarantees the stability of the welding gun through improving the supporting force of the first support and the second support, when the acquired difference value is larger than or equal to a second preset difference value, the current welding gun is indicated to deviate towards the first support, the control mechanism adjusts the power parameter of the third motor to reduce the supporting force of the second support, and meanwhile, the power parameter of the second motor is adjusted to improve the supporting force of the first support, and stability of the welding gun is guaranteed.
Referring to fig. 5, a schematic diagram of a spot welding method for an environment-friendly electronic product according to an embodiment of the invention includes,
Step S1, placing an electronic product to be spot-welded on a placing table, and clamping the electronic product to be spot-welded by a clamping mechanism;
s2, the electric welding gun performs spot welding on the position to be spot-welded;
step S3, the control mechanism adjusts the supporting force of the stabilizing mechanism and the rotating speed of the absorption unit according to the deviation distance of the spot welding position;
and S4, the absorption mechanism absorbs solid waste and smoke around spot welding according to the acquired rotation rate of the absorption unit and the pressure of the suction pump.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (9)
1. An environment-friendly electronic product spot welding device with flue gas absorption loop, which is characterized by comprising:
an electric welding gun for spot welding electronic products;
the stabilizing mechanism is connected with the electric welding gun and used for keeping the stability of the electric welding gun, and comprises a first sliding unit and a supporting unit;
The absorption mechanism is connected with the electric welding gun and used for absorbing smoke of welding spots, the absorption mechanism comprises an absorption unit and a rotation unit for controlling the absorption unit to rotate, the absorption unit comprises an absorption unit arranged in an absorption pipe, an air suction unit for controlling the absorption amount of the smoke and a filtering unit for filtering the smoke, the absorption unit comprises an absorption net for absorbing solid waste and a weight sensor arranged on the absorption net, and the weight sensor is used for acquiring the weight of the solid waste on the absorption net;
the detection mechanism is connected with the supporting unit and used for acquiring the stability of the electric welding gun;
the control mechanism is connected with the electric welding gun, the stabilizing mechanism, the absorbing mechanism and the detecting mechanism and is used for adjusting the supporting force of the stabilizing mechanism and the rotating speed of the absorbing unit according to the deviation distance of the spot welding position;
the control mechanism obtains the deviation distance D of the spot welding position and compares the deviation distance D with the deviation distance D of the preset spot welding position of the control mechanism, and judges whether the current spot welding position meets the preset standard or not, wherein,
when D is less than or equal to D1, the control mechanism judges that the current spot welding position meets the preset standard;
When D1 is more than D and less than D2, the control mechanism judges that the current electric welding position meets a preset standard, and the control mechanism adjusts the rotation rate of the absorption unit according to the absorption amount obtained by the absorption unit;
when D is more than or equal to D2, the control mechanism judges that the current spot welding position does not meet the preset standard, and the control mechanism adjusts the supporting force of the supporting unit of the stabilizing mechanism according to the stability of the electric welding gun acquired by the detection mechanism;
the control mechanism presets a spot welding position deviation distance D, a first preset spot welding position deviation distance D1 and a second preset spot welding position deviation distance D2.
2. The spot welding device for environment-friendly electronic products with a smoke absorption loop according to claim 1, wherein the control mechanism obtains the current spot welding position deviation distance from the first preset spot welding position deviation distance to the second preset spot welding position deviation distance, the control mechanism obtains the adsorption quantity delta M of the adsorption unit within a preset time, compares the obtained adsorption quantity with a preset adsorption quantity M, and judges whether the current spot welding solid waste generation quantity meets a preset standard or not, wherein,
when Deltam is less than or equal to M1, the control mechanism judges that the current spot-welded solid waste production meets the preset standard;
When M1 < [ delta ] M < M2, the control mechanism judges that the current spot-welded solid waste production does not meet the preset standard, and the control mechanism improves the rotation rate of the absorption unit;
when Deltam is more than or equal to M2, the control mechanism judges that the current generation amount of the solid waste subjected to spot welding does not meet the preset standard, and the control mechanism improves the rotation speed of the absorption unit and simultaneously improves the heating temperature of the electric welding gun;
wherein, the control mechanism presets the adsorption quantity M, sets a first preset adsorption quantity M1 and a second preset adsorption quantity M2.
3. The spot welding device for environment-friendly electronic products provided with a smoke absorption loop according to claim 2, wherein the control mechanism obtains an adsorption amount between a first preset adsorption amount and a second preset adsorption amount, the control mechanism judges that the generation amount of solid waste of the current spot welding does not meet a preset standard, the control mechanism increases the rotation rate p of the absorption unit to p1, and p1=p× (1+ (Δm-M1) × (M2- Δm)/(m1×m2)).
4. The spot welding apparatus for environment-friendly electronic products provided with a smoke absorption loop as set forth in claim 3, wherein the control means obtains a second preset adsorption amount or more, and the control means increases the rotation rate p to p2 of the absorption unit, sets p2=p× (1+ (Δm-M2)/M2), and simultaneously increases the heating temperature w to w1 of the electric welding gun, and sets w1=w× (1+ (Δm-M2)/M2).
5. The spot welding device for environment-friendly electronic products with a smoke absorption loop according to claim 4, wherein the rotating unit comprises a rotator connected with the absorbing unit and a first motor for controlling the rotating speed of the rotator, wherein the first motor is connected with the rotator, the absorbing unit comprises an absorbing pipe and a suction pump for controlling the smoke absorption, the control mechanism presets a rotating speed P, the control mechanism obtains the rotating speed of the absorbing unit and compares the rotating speed with the preseting rotating speed, the power parameter and the suction pump pressure of the first motor are adjusted,
when pi is less than or equal to P, the control mechanism increases the power parameter F1 of the first motor to F11, and F11=F1× (1+ (P-pi)/P) is set;
when pi > P, the control mechanism increases the power parameter F1 of the first motor to F12, and sets F12=F1× (1+ (pi-P)/P), and the control mechanism increases the pressure Fx of the suction pump to Fx1, and sets fx1=fx× (1+ (pi-P)/P); where i=1, 2.
6. The spot welding device for environment-friendly electronic products with a smoke absorbing circuit according to claim 1, wherein the supporting unit comprises a first supporting device contacted with one side of the electric welding gun and a second supporting device contacted with the other side of the electric welding gun, wherein the first supporting device comprises a first connecting plate, a second motor for controlling the supporting force of the first connecting plate and a first spring for damping, the second supporting device comprises a second connecting plate, a third motor for controlling the supporting force of the second connecting plate and a second spring for damping, the detecting mechanism comprises a first displacement sensor connected with the first spring and a second displacement sensor connected with the second spring, the detecting mechanism obtains the stability s of the electric welding gun according to the displacement s1 of the first spring obtained by the first displacement sensor and the displacement s2 of the second spring obtained by the second displacement sensor, and sets s= (1+ (s 1-s 10)/s 10) × (1+ (s 2-s 20)/s 20), wherein the detecting mechanism is preset with the first standard value s10 and the second standard value s20 is preset as the first standard value.
7. The spot welding device for environment-friendly electronic products with a smoke absorption loop according to claim 6, wherein the control mechanism obtains a spot welding position deviation distance which is larger than or equal to a second preset spot welding position deviation distance, the control mechanism judges whether the current welding gun is stable or not according to the comparison of the stability degree S of the current welding gun obtained by the detection mechanism and the preset stability degree S0 of the control mechanism, wherein,
when S is less than S0, the control mechanism judges that the current electric welding gun is stable, the control mechanism adjusts the positioning of the electric welding gun, and simultaneously improves the absorption pump pressure Fx 'to Fx1', and Fx1 '=Fx' × (1+ (S0-S)/S0);
when S is more than or equal to S0, the control mechanism judges that the current electric welding gun is unstable, and the control mechanism judges to adjust the supporting force of the supporting unit according to the displacement of the first spring and the displacement of the second spring.
8. The spot welding apparatus for environment-friendly electronic products provided with a fume absorption loop according to claim 7, wherein the control means determines that the current welding gun is unstable, obtains a difference Δs between a displacement amount S1 of the first spring and a displacement amount S2 of the second spring, sets Δs=s1-S2, compares the difference with a preset difference Δs, adjusts the supporting force of the supporting unit, wherein,
When Δs is less than or equal to Δs1, the control mechanism increases the third motor power parameters F3 to F31, sets f31=f3× (1+0.8× (Δs1- Δs)/Δs1), decreases the second motor power parameters F2 to F21, sets f21=f2× (1-0.8× (Δs1- Δs)/Δs1);
when Δs1 < Δs2, the control means increases the third motor power parameters f3 to F32, sets f32=f3× (1+0.5× (Δs- Δs1) × (Δs2- Δs)/(Δs1×Δs2)), and the control means increases the second motor power parameters f2 to F22, sets f22=f2× (1+0.5× (Δs- Δs1) × (Δs2- Δs)/(Δs1×Δs2));
when Δs is not less than Δs2, the control means increases the second motor power parameters F2 to F23, sets f23=f2× (1-0.8× (Δs- Δs2)/Δs2), decreases the third motor power parameters F3 to F32, sets f32=f3× (1-0.8× (Δs- Δs2)/Δs2);
wherein, the control mechanism presets a difference DeltaS, sets a first preset difference DeltaS 1, and a second preset difference DeltaS 2.
9. A spot welding method for environmental-friendly electronic products, which adopts the spot welding device as claimed in any one of claims 1 to 8, comprising the steps of,
step S1, placing an electronic product to be spot-welded on a placing table, and clamping the electronic product to be spot-welded by a clamping mechanism;
S2, the electric welding gun performs spot welding on the position to be spot-welded;
step S3, the control mechanism adjusts the supporting force of the stabilizing mechanism and the rotating speed of the absorption unit according to the deviation distance of the spot welding position;
and S4, the absorption mechanism absorbs solid waste and smoke around spot welding according to the acquired rotation rate of the absorption unit and the pressure of an air suction pump arranged in the absorption unit.
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