CN116967727B - Automatic assembly system of PCU accessory - Google Patents
Automatic assembly system of PCU accessory Download PDFInfo
- Publication number
- CN116967727B CN116967727B CN202310939048.8A CN202310939048A CN116967727B CN 116967727 B CN116967727 B CN 116967727B CN 202310939048 A CN202310939048 A CN 202310939048A CN 116967727 B CN116967727 B CN 116967727B
- Authority
- CN
- China
- Prior art keywords
- press
- fitting
- assembly
- top cover
- pump rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 claims abstract description 75
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000033764 rhythmic process Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides an automatic assembly system for PCU accessories, which is characterized in that a station switching mechanism is arranged to carry a tool unit for station switching, an upper and lower material stations, a pump rod press-fitting mechanism, a clamp spring mounting module, a detection mechanism and a top cover press-fitting mechanism are sequentially arranged on a station switching path, and automatic operation is simultaneously carried out at multiple stations, wherein the upper and lower material stations are used for positioning and pre-fitting a valve body and a pump rod onto the tool unit, the pump rod press-fitting mechanism is matched for synchronous press-fitting of left and right pump rods, the clamp spring mounting module is used for automatic feeding, angle correction and assembly in place, and the top cover press-fitting mechanism is used for press-fitting of a top cover, so that the sequential installation of the left and right pump rods, a limiting clamp spring and the top cover in the valve body on the clamping mechanism is realized, the stability is good, the assembly efficiency and the assembly precision are high, and the technical problems of low efficiency, high error rate, poor product quality and the like due to the dependence on manual assembly in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of PCU accessory assembly, in particular to an automatic PCU accessory assembly system.
Background
In the automobile controller assembly process, the pump rod, the clamp spring and the top cover are installed on the controller valve body, and the requirement on installation accuracy is high. The nonstandard automatic equipment definition is customized, unique and non-market circulation automatic system integrated equipment, and is equipment for development, design and manufacture according to the application needs of customers. The technological requirements of different types of clients are different.
Chinese patent CN202010871774.7 discloses an automatic assembling device for upper casing of engine thermostat, which comprises a workbench and further comprises: a turntable transfer assembly; the magnet feeding assembly is arranged to convey the magnet to the wax package piece on the wax package positioning block; the first welding assembly is used for grabbing the cover plate from the cover plate positioning block and welding the cover plate in the upper shell on the shell positioning block; the wiring needle feeding assembly is used for conveying and installing the wiring needle to the upper shell; a second welding assembly for welding the magnet to the wax capsule; and the discharging assembly is used for grabbing the assembled upper shell and wax package from the shell tooling to discharge. The thermostat shell is driven to sequentially pass through the magnet feeding assembly, the first welding assembly, the wiring pin feeding assembly, the second welding assembly and the discharging assembly to be assembled through the turntable transferring assembly.
However, aiming at different types of controllers, different types of accessories and different mounting technologies, the prior art scheme lacks an automatic assembly production line for mounting a pump rod, a clamp spring and a top cover on a controller valve body, and relies on manual assembly to solve the technical problems of low efficiency, high error rate, poor product quality and the like.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides an automatic PCU accessory assembling system, which is characterized in that a station switching mechanism is arranged to carry a tool unit to perform station switching, an upper and lower material stations, a pump rod press-fitting mechanism, a clamp spring mounting module, a detection mechanism and a top cover press-fitting mechanism are sequentially arranged on a station switching path, and multi-station automatic operation is performed simultaneously, wherein a valve body and a pump rod are positioned and preloaded on the tool unit at the upper and lower material stations, the synchronous press-fitting of the left and right pump rods is performed by the pump rod press-fitting mechanism, the automatic material loading, the angle correction and the assembly of the clamp spring in place are performed by the clamp spring mounting module, and the press-fitting of the top cover is performed by the top cover press-fitting mechanism, so that the sequential installation of the left and right pump rods, the limiting clamp springs and the top cover in a valve body on the clamping mechanism is realized, the stability is good, the assembly efficiency and the assembly precision are high, and the technical problems of low efficiency, high error rate, poor product quality and the like due to the dependence of manual assembly in the prior art are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A PCU accessory automated assembly system, comprising: the station switching mechanism is provided with tooling units in an array manner, and the station switching mechanism carries the tooling units to perform station switching; further comprises: the feeding and discharging stations, the pump rod press-fitting mechanism, the clamp spring mounting module, the detection mechanism and the top cover press-fitting mechanism are sequentially distributed along a station switching path of the station switching mechanism; the valve body and the pump rod are preloaded and fed onto the tool unit at the loading and unloading station, the station switching rhythm of the station switching mechanism is matched, the pump rod pressing mechanism presses the pump rod into the valve body, the clamp spring mounting module clamps the clamp spring onto the pump rod at a correct angle, and the top cover pressing mechanism presses the top cover onto the valve body after the detection mechanism detects the qualified state.
Preferably, the valve body is provided with a pump rod mounting channel in a left-right horizontal penetrating manner, two pump rods are symmetrically pressed into the pump rod mounting channel from the left end and the right end of the pump rod mounting channel, the upper portion of the valve body is provided with a clamp spring mounting channel in a penetrating manner, the clamp spring is mounted onto the pump rod from the clamp spring mounting channel so as to limit and clamp the two pump rods mutually, and the top cover is pressed onto the valve body so as to seal the clamp spring mounting channel.
Preferably, the station switching mechanism is set to a rotary table structure and comprises a driving rotary table which performs rotary motion, four groups of tool units are distributed on the driving rotary table in a circumferential array mode to form four stations, a first station is set to be the feeding and discharging station, a second station is provided with the pump rod press-fitting mechanism and the clamp spring mounting module, a third station is provided with the detecting mechanism, and a fourth station is provided with the top cover press-fitting mechanism.
Preferably, the tooling unit includes: the clamping tool is used for limiting and bearing the valve body; and the press-fitting mechanism comprises a press-fitting part, the pump rod is preloaded on the press-fitting part, and the press-fitting part performs telescopic sliding relative to the clamping tool so as to press-fit the pump rod into the pump rod mounting channel.
Preferably, the press-fitting mechanism is matched with the pump rod mounting channel and symmetrically provided with two groups on the left side and the right side of the clamping tool.
Preferably, the press-fitting portion is provided in an elastic self-resetting structure, which includes: the press-fit rod penetrates through the pump rod lifting assembly and is slidably mounted on the pump rod lifting assembly, and the pump rod is preloaded at the inner end part of the press-fit rod; and the elastic piece A is sleeved on the press-fit rod, and two ends of the elastic piece A are limited and abutted between the pump rod lifting assembly and the outer end part of the press-fit rod.
Preferably, the pump rod press-fitting mechanism includes: the press-fit driving assembly is located below the clamping tool switched in place and can move up and down relative to the clamping tool.
Preferably, the pump rod press-fitting mechanism further includes: and the lifting driving part is arranged on the base and is in power connection with the press-fit driving assembly, and drives the lifting table to lift.
Preferably, the press-fit driving assembly includes: the lifting platform is arranged in a lifting and moving manner; and the pump rod press-fitting driving part is arranged on the lifting platform, corresponds to the press-fitting part and is used for driving the press-fitting part to horizontally slide and stretch out for press-fitting operation.
Preferably, the press-fitting mechanism further includes: the pump rod lifting assembly is arranged on the press mounting part, and the press mounting part is driven by the pump rod lifting assembly to lift so as to align or misplace the pump rod preassembled on the pump rod lifting assembly with the pump rod installation channel.
Preferably, the pump rod lifting assembly includes: the lifting slide seat is arranged on the clamping tool; and the lifting seat is vertically and slidably arranged on the lifting sliding seat, and the press-fit part is horizontally and slidably arranged on the lifting seat.
Preferably, the press-fit driving assembly further includes: the jacking part is arranged on the lifting table and correspondingly arranged below the pump rod lifting assembly and is used for jacking a lifting seat of the pump rod lifting assembly to lift when the lifting table lifts; and the supporting seat is arranged on the lifting platform and positioned below the clamping tool and is used for bearing the clamping tool when the lifting platform is lifted.
Preferably, the clip spring mounting module includes: a feeding mechanism that continuously supplies the clip spring; the material taking mechanism is arranged in cooperation with the discharge end of the feeding mechanism to take materials from the clamping springs; the angle adjusting mechanism is matched with the discharging end of the material taking mechanism, the material taking mechanism discharges the clamp springs onto the angle adjusting mechanism, and the angle adjusting mechanism detects and rotationally adjusts the placement angles of the clamp springs on the material taking mechanism; and the feeding mechanism is matched with the angle adjusting mechanism, and is used for clamping and installing the clamp spring with the angle adjusted to be in place between two pump rods in a press fit manner.
Preferably, the material taking mechanism comprises: a second traversing module; the material taking module is arranged on the second transverse moving module and slides along the second transverse moving module, the second transverse moving module provides driving force for the sliding motion of the material taking module, and the feeding mechanism and the rotation adjusting component are respectively arranged at two ends of the sliding stroke of the second transverse moving module; the detection unit is arranged on the material taking module.
Preferably, the feeding mechanism includes: a second longitudinal movement module; and the feeding module is arranged on the second longitudinal movement module and slides along the second longitudinal movement module, and the second longitudinal movement module provides driving force for the sliding action of the feeding module.
Preferably, the feeding module comprises: the feeding slide seat is arranged on the second longitudinal movement module in a sliding manner; the feeding driving part is arranged on the feeding sliding seat and provides lifting driving force for the claw assembly; and the jaw assembly, the jump ring is annular structure, the jaw assembly includes: the clamping jaws are synchronously unfolded or folded along the radial direction so as to be supported or detached from the inner ring of the clamping spring; and a chuck driving section that drives each of the jaws to be expanded or contracted in a radial direction in synchronization.
Preferably, the angle adjusting mechanism includes: the rotation adjusting assembly is used for carrying and adjusting the angle of the clamp spring; and the detection unit is positioned above the rotary adjusting assembly to carry out photographing detection and feedback on the placement angle of the clamp spring on the rotary adjusting assembly.
Preferably, the rotation adjustment assembly includes: the rotary carrying platform is provided with a clamping seat for limiting and clamping the clamping springs; and the rotary driving part is arranged on the base, and the top driving end of the rotary driving part is in power connection with the rotary carrying platform so as to drive the rotary carrying platform to rotate.
Preferably, the top cover press-fitting mechanism includes: the press-fit working position is provided with a top cover driving part; a material taking position, wherein a material taking driving part is arranged on the material taking position; and the press-fit head module is arranged between the press-fit working position and the material taking position in a moving and switching manner, the material taking driving part drives the pressure head assembly of the press-fit head module to move downwards so as to take out the top cover, and the top cover driving part drives the pressure head assembly to move downwards so as to press-fit the top cover.
Preferably, the top cover press-fitting mechanism further includes: and the transverse moving mechanism drives the press-fitting head module to move and switch between the press-fitting working position and the material taking position.
Preferably, the press-fitting work station includes: the top cover driving part is vertically arranged at the top of the press mounting seat; and the press-fit base is arranged at the bottom of the press-fit mounting seat and supports the tooling unit switched in place to cooperate with the pressure head assembly to perform press-fit operation of the top cover.
Preferably, the tool unit comprises a tool seat and a clamping tool body, the tool seat is arranged on the station switching mechanism, the clamping tool body is vertically and slidably arranged on the tool seat and is arranged into an elastic self-resetting structure, the pressing head assembly downwards presses the clamping tool body so that the clamping tool body downwards slides and is abutted to the press mounting base, and after lifting and resetting of the pressing head assembly, the clamping tool body automatically and elastically moves upwards to reset, and interference between the clamping tool body and the press mounting base is avoided when the station is switched.
Preferably, the press-fit head module includes: the pressure head assembly vertically slides and penetrates through the sliding seat; and the elastic piece is sleeved outside the pressure head assembly and limited between the top of the pressure head assembly and the top of the sliding seat, and drives the pressure head assembly to automatically move upwards for resetting.
Preferably, the ram assembly comprises: the telescopic rod vertically stretches and moves; and the adsorption pressure head is arranged at the bottom of the telescopic rod and is used for adsorbing and taking materials and pressing the top cover.
Preferably, the telescopic rod is in an I-shaped rod structure, the elastic piece is arranged on the upper limit sleeve of the rod part between the top of the telescopic rod and the top of the sliding seat, and the lower part of the telescopic rod extends out of the bottom surface of the sliding seat and is connected with the adsorption pressure head.
Preferably, the adsorption head includes: a ram body; and the air channel is arranged in the pressure head body and is communicated with the bottom adsorption part of the pressure head body, and the air channel is connected with external air source equipment.
The invention has the beneficial effects that:
(1) According to the invention, the station switching mechanism is arranged to carry the tool unit for station switching, and the feeding and discharging stations, the pump rod press-fitting mechanism, the clamp spring mounting module, the detection mechanism and the top cover press-fitting mechanism are sequentially arranged on the station switching path, and the automatic operation is simultaneously performed at multiple stations;
(2) According to the invention, the valve body to be assembled is subjected to limit clamping by arranging the clamping tool, the press-fitting mechanism is arranged by matching with the pump rod mounting channel of the valve body, the pump rod preassembled on the press-fitting mechanism is sent into the pump rod mounting channel to finish press-fitting by virtue of the extending action, and the press-fitting driving assembly is arranged in a matched manner to drive the press-fitting part to lift and horizontally move, so that automatic press-fitting operation is realized, the rapid press-fitting of the pump rod in the valve body is finished, and the working efficiency and the press-fitting accuracy are high;
(3) According to the invention, the feeding mechanism and the material taking mechanism are arranged to continuously feed and take materials one by one, the angle adjusting mechanism is arranged at the discharge end of the material taking mechanism in a matching way, the material taking mechanism takes materials to be put on the angle adjusting mechanism to carry out angle detection and rotation adjustment, then the material feeding mechanism carries the materials to be put in through the snap spring mounting channel of the valve body to limit and clamp the two pump rods with each other, and the snap springs are assembled according to the appointed angle, so that the assembly requirement and standard are met, the structural arrangement is ingenious, and the practicability is strong;
(4) According to the invention, the press-fit head module is arranged between the press-fit working position and the material taking position for moving and switching, the top cover feeding mechanism is arranged in cooperation with the material taking position, the press-fit driving part and the material taking driving part are respectively arranged on the press-fit working position and the material taking position, so that the pressure head mechanism which moves to the material taking position is respectively driven to move downwards to absorb and take the top cover, and the pressure head mechanism which moves to the press-fit working position moves downwards to press the top cover onto the valve body, thereby realizing automatic feeding, material taking and press-fit of the top cover, realizing continuous press-fit and having high efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a pressed PCU accessory product of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a schematic diagram showing the assembly of a pump rod and a clamp spring in the invention;
FIG. 6 is a schematic diagram of a pump rod press-fitting mechanism according to the present invention;
FIG. 7 is a front view of FIG. 6;
FIG. 8 is an enlarged view of FIG. 6 at A;
FIG. 9 is an enlarged view of FIG. 7 at B;
FIG. 10 is a schematic diagram of a clip spring mounting module according to the present invention;
FIG. 11 is a schematic view of a partial structure of a feeding mechanism according to the present invention;
FIG. 12 is a schematic view of the jaw assembly of the present invention;
FIG. 13 is a front view of the engagement of the take off mechanism with the rotary adjustment assembly of the present invention;
FIG. 14 is a schematic view of a rotary adjustment assembly according to the present invention;
FIG. 15 is a schematic view of a portion of a rotary adjustment assembly according to the present invention;
FIG. 16 is a schematic view of a top cover press-fitting mechanism according to the present invention;
FIG. 17 is a schematic diagram of the main structure of the top cover press-fitting mechanism according to the present invention;
FIG. 18 is a schematic diagram of a connection structure between a press-fit head module and a traverse module according to the present invention;
FIG. 19 is a schematic view of the structure of an adsorption head according to the present invention;
fig. 20 is a cross-sectional view of a press-fit head module of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1-2, a PCU accessory automated assembly system, comprising: the station switching mechanism 1 is provided with tooling units 2 in an array manner, and the station switching mechanism 1 carries the tooling units 2 to perform station switching; further comprises: the feeding and discharging stations 30, the pump rod press-fitting mechanism 4, the clamp spring mounting module 50, the detection mechanism 60 and the top cover press-fitting mechanism 7 are sequentially distributed along a station switching path of the station switching mechanism 1; the valve body 101 and the pump rod 102 are preloaded and fed onto the tooling unit 2 at the loading and unloading station 30, and the pump rod press-fitting mechanism 4 presses the pump rod 102 into the valve body 101 in cooperation with the station switching rhythm of the station switching mechanism 1, the clamp spring mounting module 50 clamps the clamp spring 103 onto the pump rod 102 at a correct angle, and the top cover press-fitting mechanism 7 presses the top cover 104 onto the valve body 101 after the detection mechanism 60 detects that the top cover is qualified.
As shown in fig. 3-5, the valve body 101 is provided with a pump rod mounting channel 111 extending horizontally from left to right, two pump rods 102 are symmetrically press-fitted into the pump rod mounting channel 111 from left and right ends of the pump rod mounting channel 111, the upper portion of the valve body 101 is provided with a clamp spring mounting channel 112 extending through the middle of the pump rod mounting channel 111, the clamp spring 103 is mounted onto the pump rod 102 from the clamp spring mounting channel 112 to limit and clamp the two pump rods 102, and the top cover 104 is press-fitted onto the valve body 101 to seal the clamp spring mounting channel 112.
Preferably, as shown in fig. 2, the station switching mechanism 1 is configured as a turntable structure, and includes a driving turntable 11 that performs a rotation motion, four groups of tool units 2 are distributed on the driving turntable 11 in a circumferential array manner to form four stations, a first station is configured as the loading and unloading station 30, a second station is configured with the pump rod pressing mechanism 4 and the clamp spring mounting module 50, a third station is configured with the detecting mechanism 60, a fourth station is configured with the top cover pressing mechanism 7, and the station layout is compact and reasonable, so that continuous automatic assembly is realized, and the working efficiency is high.
Preferably, as shown in fig. 6 to 7, the tooling unit 2 includes: the clamping tool 21, and the valve body 101 is limited and carried by the clamping tool 21; and the press-fitting mechanism 22, the press-fitting mechanism 22 comprises a press-fitting portion 221, the pump rod 102 is preloaded on the press-fitting portion 221, and the press-fitting portion 221 performs telescopic sliding relative to the clamping tool 21 so as to press-fit the pump rod 102 into the pump rod mounting channel 111.
Preferably, the press-fitting mechanism 22 is symmetrically provided with two groups on the left and right sides of the clamping tool 21 in matching with the pump rod mounting channel 111.
Preferably, as shown in fig. 6, the pump rod press mechanism 4 includes: and the press-fit driving assembly 41 is positioned below the clamping tool 21 switched in place and can move up and down relative to the clamping tool 21.
In this embodiment, the valve body 101 to be assembled is clamped by setting the clamping tool 21, the press-fitting mechanism 22 is arranged through the pump rod mounting channel 111 matched with the valve body 101, the pump rod 102 preassembled on the press-fitting mechanism 22 is sent into the pump rod mounting channel 111 to complete press-fitting through the extending action, the press-fitting driving assembly 41 is matched with the pump rod mounting channel 111 to drive the press-fitting part 21 to lift and horizontally move, automatic press-fitting operation is realized, and rapid press-fitting of the pump rod in the valve body is completed, and the working efficiency and the press-fitting accuracy are high.
Preferably, the pump rod press-fitting mechanism 4 further includes: and a lifting driving part 42, wherein the lifting driving part 42 is mounted on the base and is in power connection with the press-fit driving assembly 41, and drives the lifting table 411 to lift.
In addition, through setting up pressure equipment drive assembly 41 for centre gripping frock 21 liftable removal, can step down the station circulation of centre gripping frock 21, avoid interfering.
Preferably, as shown in fig. 9, the press-fit driving assembly 41 includes: a lifting table 411, wherein the lifting table 411 is arranged in a lifting and moving manner; and a pump rod press-fitting driving part 412, wherein the pump rod press-fitting driving part 412 is mounted on the lifting platform 411, is arranged corresponding to the press-fitting part 221, and is used for driving the press-fitting part 221 to horizontally slide and extend out for press-fitting operation.
Preferably, as shown in fig. 8 to 9, the press-fitting portion 221 is provided in an elastic self-resetting structure, which includes: a press-fit rod 2211, wherein the press-fit rod 2211 is installed on the pump rod lifting assembly 222 in a penetrating and sliding manner, and the pump rod 102 is preloaded at the inner end part of the press-fit rod 2211; and an elastic member a2212, wherein the elastic member a2212 is sleeved on the press-fitting rod 2211, and two ends of the elastic member a2212 are limited and abutted between the pump rod lifting assembly 222 and the outer end of the press-fitting rod 2211.
In the present embodiment, the press-fitting rod 2211 extends to perform the press-fitting operation, the pump rod press-fitting driving portion 412 provides the driving force, and retracts to return to the self-driving force provided by the elastic force of the elastic member a2212, so that the structure is smart, the cost is low, and the action is efficient.
Preferably, as shown in fig. 8, the press-fitting mechanism 22 further includes: the pump rod lifting assembly 222, the press-fitting part 221 is mounted on the pump rod lifting assembly 222, and the press-fitting part 221 is driven by the pump rod lifting assembly 222 to lift and move so as to align or misplace the pump rod 102 preassembled thereon with the pump rod mounting channel 111.
In this embodiment, the press-fitting portion 221 is mounted on the pump rod lifting assembly 222 so as to be driven by the pump rod lifting assembly 222 to perform lifting movement, so that the pump rod 102 preassembled thereon is aligned with or dislocated from the pump rod mounting channel 111, thereby facilitating the pre-preassembling of the pump rod 102.
Preferably, as shown in connection with fig. 9, the pump rod lifting assembly 222 includes: a lifting slide 2221, wherein the lifting slide 2221 is mounted on the clamping tool 21; and a lifting seat 2222, wherein the lifting seat 2222 is vertically slidably mounted on the lifting slide 2221, and the press-fitting portion 221 is horizontally slidably mounted on the lifting seat 2222.
Preferably, the press-fit driving assembly 41 further includes: a lifting part 413, where the lifting part 413 is installed on the lifting table 411 and is correspondingly disposed below the pump rod lifting assembly 222, and is used to lift the lifting seat 2222 of the pump rod lifting assembly 222 when the lifting table 411 lifts; and a supporting seat 414, wherein the supporting seat 414 is installed on the lifting platform 411 and located below the clamping tool 21, and is used for supporting the clamping tool 21 when the lifting platform 411 is lifted.
In this embodiment, the pressing portion 21 is jacked up by the jacking portion 413, and the clamping tool 21 is supported by the supporting seat 414, so that the pressing operation is more stable and accurate.
Example two
The same or corresponding parts of this embodiment as those of the above embodiment are given the same reference numerals as those of the above embodiment, and only the points of distinction from the above embodiment will be described below for the sake of brevity. This embodiment differs from the above embodiment in that:
Preferably, as shown in fig. 10, the clip spring mounting module 50 includes: a feeding mechanism 3, wherein the feeding mechanism 3 continuously supplies the clamp spring 103; the material taking mechanism 51 is arranged in cooperation with the discharge end of the feeding mechanism 3 to take materials from the clamp spring 103; the angle adjusting mechanism 6 is arranged in cooperation with the discharging end of the material taking mechanism 51, the material taking mechanism 51 discharges the clamp spring 103 onto the angle adjusting mechanism 6, and the angle adjusting mechanism 6 detects and rotationally adjusts the placement angle of the clamp spring 103 on the material taking mechanism; and the feeding mechanism 52 is matched with the angle adjusting mechanism 6, and the clamping spring 103 with the angle adjusted is clamped and installed between the two pump rods 102 which are pressed in place.
It should be noted that, through the procedure in the first embodiment, two pump rods 102 are pressed into the valve body 101, and the heads of the left and right pump rods 102 are just opposite to be close to each other, as shown in fig. 4-5, the next procedure requires that the clamp spring 103 is clamped and installed on the heads of the left and right pump rods 102 so as to limit and clamp the two pump rods 102 mutually, the clamp spring 103 is annular and has a V-shaped notch on the circumference, the V-shaped notch is required to be located at the gap between the left and right pump rods 102 during installation, and the placement angle of the clamp spring 103 is not constant during automatic feeding, so that the placement angle of the yellowing 103 needs to be adjusted before feeding installation, so as to correct the placement angle meeting the installation requirement.
Therefore, in this embodiment, through setting up feeding mechanism 3 and feeding mechanism 51 and carrying out the continuous feed of jump ring 103 and getting material one by one, the matching sets up angle adjustment mechanism 6 at the discharge end of feeding mechanism 51, jump ring 103 is got the material and is transferred to angle adjustment mechanism 6 by feeding mechanism 51 and carry out angle detection and rotation regulation, and afterwards carry out the material loading by feeding mechanism 52, realize jump ring 103 and carry out the material loading and assemble on pump pole 102 according to appointed angle to satisfy equipment demand and standard, the structure sets up ingenious, the practicality is strong.
Preferably, as shown in fig. 13, the angle adjusting mechanism 6 includes: a rotation adjustment assembly 61, wherein the rotation adjustment assembly 61 carries and adjusts the angle of the clamp spring 103; and the detection unit 62 is positioned above the rotation adjusting component 61, so as to carry out photographing detection and feedback on the placement angle of the clamp spring 103 on the rotation adjusting component 61.
Preferably, as shown in fig. 14 to 15, the rotation adjusting assembly 61 includes: the rotary carrying platform 611 is provided with a clamping seat 610 for limiting and clamping the clamping spring 103; and a rotation driving part 612, wherein the rotation driving part 612 is mounted on the base, and the top driving end of the rotation driving part is in power connection with the rotation carrying platform 611 to drive the rotation carrying platform 611 to rotate.
In operation, the clamp spring 103 is clamped in the clamping seat 610, the upper detection unit 62 is used for photographing, the position angle of the clamp spring is detected and fed back, and then the rotary driving part 612 rotates as required to adjust and correct the angle of the clamp spring 103.
Preferably, as shown in fig. 2, the extracting mechanism 51 includes: a second traverse module 511; the material taking module 512 is mounted on the second traverse module 511 and slides along the second traverse module 511, the second traverse module 511 provides driving force for the sliding motion of the material taking module 512, and the feeding mechanism 3 and the rotation adjusting assembly 61 are respectively arranged at two ends of the sliding stroke of the second traverse module 511; the detecting unit 62 is mounted on the material taking module 512.
Preferably, the feeding mechanism 52 includes: a second vertical movement module 521; and a feeding module 522, wherein the feeding module 522 is mounted on the second longitudinal moving module 521 and slides along the second longitudinal moving module 521, and the second longitudinal moving module 521 provides a driving force for the sliding motion of the feeding module 522.
In the embodiment, through setting up feed mechanism 3 and feed mechanism 52 respectively at the last unloading both ends of feeding mechanism 51, set up angle adjustment mechanism 6 in feeding mechanism 51 unloading end below, the setting position distribution among each mechanism is compact reasonable, and each mechanism action engageability is good, and work is high-efficient.
Preferably, as shown in fig. 11, the feeding module 522 includes: a feeding slide 5221, wherein the feeding slide 5221 is slidably disposed on the second longitudinal moving module 521; a feeding driving part 5222, wherein the feeding driving part 5222 is mounted on the feeding slide base 5221 and provides lifting driving force for the jaw assembly 5223; and a jaw assembly 5223, as shown in fig. 12, the clip 103 has a ring structure, and the jaw assembly 5223 includes: the clamping jaws 5224 of the plurality of circumferential arrays are synchronously unfolded or folded along the radial direction so as to support or release the clamping jaws 5224 from the inner ring of the clamping spring 103; and a chuck driving section 5225, the chuck driving section 5225 driving each of the jaws 5224 to be simultaneously radially expanded or contracted.
During operation, the feeding driving part 5222 drives the jaw assembly 5223 to move downwards to take materials, meanwhile, the chuck driving part 5225 drives the three jaws 5224 to synchronously fold, the rear jaws 5224 extend into the clamping springs 103 placed on the rotary carrying platform 611, the chuck driving part 5225 drives the three jaws 5224 to synchronously open so as to prop and take the clamping springs 103 from the inner ring of the clamping springs 103, and the chuck driving part 5225 drives the three jaws 5224 to synchronously fold after moving in place so as to enable the clamping springs 103 to fall.
Example III
Preferably, as shown in fig. 16, the top cover press-fitting mechanism 7 includes: a press-fit work position 71, wherein a top cover driving part 711 is arranged on the press-fit work position 71; a material taking position 72, wherein a material taking driving part 721 is arranged on the material taking position 72; and the press-fit head module 70 is movably switched between the press-fit working position 71 and the material taking position 72, the material taking driving part 721 drives the press-fit head module 70 to move downwards to take the top cover 104, and the top cover driving part 711 drives the press-fit head module 73 to move downwards to press the top cover 104.
Preferably, as shown in fig. 16, the method further comprises: the top cover feeding mechanism is arranged below the material taking position 72 in cooperation with the top cover feeding mechanism, and is used for continuously feeding the top cover 104.
In this embodiment, the press-fit head module 70 is set to switch between the press-fit working position 71 and the material taking position 72, and the top cover feeding mechanism is set in cooperation with the material taking position, and the press-fit driving part 711 and the material taking driving part 721 are respectively set on the press-fit working position 71 and the material taking position 72, when the press-head assembly 73 moves to the material taking position 72, the material taking driving part 721 drives the press-head assembly 73 to move downwards to take the top cover 104, and when the press-head assembly 73 moves to the press-fit working position 71, the press-fit driving part 711 drives the press-head assembly 73 to move downwards to press the top cover 104 onto the valve body 101 correspondingly, so that automatic feeding, material taking and press-fit of the top cover 104 are realized, continuous press-fitting is realized, and efficiency is high.
Preferably, as shown in fig. 17, the top cover press-fitting mechanism 7 further includes: the traversing mechanism 76 drives the press-fitting head module 70 to move and switch between the press-fitting working position 71 and the material taking position 72.
Preferably, the press-fitting work station 71 includes: a press-fit mounting seat 712, wherein the top cover driving part 711 is vertically mounted on the top of the press-fit mounting seat 712; and a press mounting base 713, wherein the press mounting base 713 is mounted at the bottom of the press mounting base 712, and supports the tooling unit 2 switched in place to cooperate with the press head assembly 73 to perform the press mounting operation of the top cover 104, and after the tooling unit 2 bearing the valve body 101 is placed on the press mounting base 713, the press head assembly 73 having the top cover 104 adsorbed thereon is moved down by the press mounting driving part 711 and presses the top cover 104 onto the valve body 101.
Preferably, the tool unit 2 comprises a tool seat and a clamping tool body, the tool seat is mounted on the station switching mechanism 1, the clamping tool body is vertically and slidably mounted on the tool seat and is set to be of an elastic self-resetting structure, the pressing head assembly 73 presses down the clamping tool body so that the clamping tool body slides downwards and is abutted to the press mounting base 713, and after the pressing head assembly 73 is lifted to reset, the clamping tool body automatically moves upwards to reset elastically, so that interference between the clamping tool body and the press mounting base 713 during station switching is avoided.
Preferably, as shown in fig. 18, the press-fit head module 70 includes: the sliding seat 74, the pressure head assembly 73 vertically slides and penetrates through the sliding seat 74; and an elastic member 75, wherein the elastic member 75 is sleeved outside the ram assembly 73 and is limited between the top of the ram assembly 73 and the top of the sliding seat 74, and drives the ram assembly 73 to automatically move upwards for resetting.
In this embodiment, by slidably lifting the ram assembly 73 on the sliding seat 74 and arranging the elastic member 75 therebetween, when the press-fit driving portion 711 or the material taking driving portion 721 correspondingly drives the ram assembly 73 to move down and complete the material taking or press-fit operation, the elastic member 75 drives the ram assembly 73 to automatically move up and reset, so that the structure is smart, stable and practical.
Preferably, the ram assembly 73 includes: a telescopic rod 731, wherein the telescopic rod 731 performs vertical telescopic movement; and an adsorption pressure head 732, wherein the adsorption pressure head 732 is installed at the bottom of the telescopic rod 731, and is used for adsorbing, taking and press-fitting the top cover 104.
Preferably, the telescopic rod 731 is configured in an i-shaped rod structure, the elastic member 75 is disposed on the upper limit sleeve of the rod portion between the top of the telescopic rod 731 and the top of the sliding seat 74, and the lower portion of the telescopic rod 731 extends out of the bottom surface of the sliding seat 74 and is connected to the suction pressure head 732.
Preferably, as shown in fig. 19-20, the adsorption head 732 includes: a ram body 7321; and an air channel 7322, wherein the air channel 7322 is disposed in the pressure head body 7321 and is communicated with the bottom adsorption portion 7320 of the pressure head body 7321, and the air channel 7322 is connected with an external air source device.
In this embodiment, the air path 7322 is opened in the ram body 7321, and negative pressure is pumped by an external air source device, so that the top cover 104 is adsorbed into the adsorption portion 7320, and when the press mounting works, the external air source device cooperates with the release pressure, so that the top cover 104 is blanked.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. A PCU accessory automated assembly system, comprising:
The station switching mechanism is provided with tooling units in an array manner, and the station switching mechanism carries the tooling units to perform station switching;
characterized by further comprising:
The feeding and discharging stations, the pump rod press-fitting mechanism, the clamp spring mounting module, the detection mechanism and the top cover press-fitting mechanism are sequentially distributed along a station switching path of the station switching mechanism;
the valve body and the pump rod are preloaded and fed onto the tooling unit at the loading and unloading stations, and the station switching rhythm of the station switching mechanism is matched, the pump rod press-fitting mechanism presses the pump rod into the valve body, the clamp spring mounting module clamps the clamp spring onto the pump rod at a correct angle, and the top cover press-fitting mechanism presses the top cover onto the valve body after the detection mechanism detects that the top cover press-fitting mechanism is qualified;
The pump rod installing channels are formed in the valve body in a penetrating mode, the two pump rods are symmetrically pressed into the pump rod installing channels from the left end and the right end of the pump rod installing channels, the clamp spring installing channels communicated with the middle of the pump rod installing channels are formed in the upper portion of the valve body in a penetrating mode, the clamp springs are installed onto the pump rods from the clamp spring installing channels to limit and clamp the two pump rods mutually, and the top cover is pressed onto the valve body to seal the clamp spring installing channels;
the tool unit comprises:
The clamping tool is used for bearing the valve body; and
The press-fitting mechanism comprises a press-fitting part, the pump rod is preloaded on the press-fitting part, and the press-fitting part performs telescopic sliding relative to the clamping tool so as to press-fit the pump rod into a pump rod mounting channel;
The jump ring installation module includes:
a feeding mechanism that continuously supplies the clip spring;
the material taking mechanism is arranged in cooperation with the discharge end of the feeding mechanism to take materials from the clamping springs; and
The angle adjusting mechanism is matched with the discharging end of the material taking mechanism, the material taking mechanism discharges the clamp springs onto the angle adjusting mechanism, and the angle adjusting mechanism detects and rotationally adjusts the placement angles of the clamp springs on the material taking mechanism;
the angle adjusting mechanism includes:
the rotation adjusting assembly is used for carrying and adjusting the angle of the clamp spring; and
The detection unit is positioned above the rotary adjusting assembly to detect and feed back the placement angle of the clamp spring on the rotary adjusting assembly.
2. The automatic PCU fitting assembling system according to claim 1, wherein the station switching mechanism is provided with a turntable structure and comprises a driving turntable which performs a rotation action, four groups of tool units are distributed on the driving turntable in a circumferential array manner to form four stations, the first station is provided with the loading and unloading station, the second station is provided with the pump rod press-fitting mechanism and the clamp spring mounting module, the third station is provided with the detection mechanism, and the fourth station is provided with the top cover press-fitting mechanism.
3. The PCU accessory automation assembly system of claim 1, wherein the pump rod press-fitting mechanism includes:
the press-fit driving assembly is positioned below the clamping tool switched in place and can move up and down relative to the clamping tool;
the press-fit driving assembly includes:
the lifting platform is arranged in a lifting and moving manner; and
And the pump rod press-fitting driving part is arranged on the lifting table, corresponds to the press-fitting part and is used for driving the press-fitting part to slide for press-fitting operation.
4. A PCU accessory automation assembly system according to any of claims 1-3, wherein the clip attachment module further comprises:
And the feeding mechanism is matched with the angle adjusting mechanism, and clamps and installs the clamp spring with the angle adjusted to be in place between two pump rods in a press fit manner.
5. A PCU accessory automation assembly system as defined in any one of claims 1-3, wherein the top cover press-fitting mechanism includes:
the press-fit working position is provided with a top cover driving part;
a material taking position, wherein a material taking driving part is arranged on the material taking position; and
The press-fit head module is arranged between the press-fit working position and the material taking position in a moving and switching mode, the material taking driving part drives the press head assembly of the press-fit head module to move downwards to take materials of the top cover, and the top cover driving part drives the press head assembly to move downwards to press the top cover.
6. The automated PCU assembly system of claim 5, wherein the press-fit head module includes:
The pressure head assembly is vertically and slidably arranged on the sliding seat; and
The elastic piece is sleeved outside the pressure head assembly and limited between the pressure head assembly and the sliding seat, and drives the pressure head assembly to automatically move upwards for resetting.
7. The automated PCU accessory assembly system of claim 5, wherein the ram assembly comprises:
the telescopic rod vertically stretches and moves; and
The adsorption pressure head is arranged at the bottom of the telescopic rod and is used for adsorbing and taking materials and pressing the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310939048.8A CN116967727B (en) | 2023-07-28 | 2023-07-28 | Automatic assembly system of PCU accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310939048.8A CN116967727B (en) | 2023-07-28 | 2023-07-28 | Automatic assembly system of PCU accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116967727A CN116967727A (en) | 2023-10-31 |
| CN116967727B true CN116967727B (en) | 2024-09-17 |
Family
ID=88482708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310939048.8A Active CN116967727B (en) | 2023-07-28 | 2023-07-28 | Automatic assembly system of PCU accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116967727B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118372042B (en) * | 2024-06-24 | 2024-10-29 | 昆山阿普顿自动化系统有限公司 | Water pump production line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112077582A (en) * | 2020-09-29 | 2020-12-15 | 宁波经济技术开发区恒阳机械有限公司 | Automatic detection and assembly device for torsion of valve spring of automobile exhaust pipe |
| CN113523793A (en) * | 2021-07-23 | 2021-10-22 | 神通科技集团股份有限公司 | Filler cap pressure equipment detects frock |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203308701U (en) * | 2013-06-08 | 2013-11-27 | 北京鑫航成科技发展有限公司 | Ceramic pump rod assembly for feeding pump |
| CN104353984B (en) * | 2014-12-08 | 2017-06-06 | 深圳市奥斯珂科技有限公司 | A kind of USB flash disk production equipment |
| CN210306647U (en) * | 2019-03-11 | 2020-04-14 | 湖北神电汽车电机有限公司 | Automatic assembly quality of full circle pad of isolator and shroud |
| CN110280988A (en) * | 2019-06-21 | 2019-09-27 | 武汉凯尔信汽车零部件有限公司 | A kind of band dress metalwork automatic assembling apparatus |
| CN113618352B (en) * | 2021-07-15 | 2022-05-20 | 浙江金麦特自动化系统有限公司 | Automobile ECU controller multi-station assembly production line |
| CN114290053B (en) * | 2021-12-31 | 2023-04-28 | 杭州泰尚智能装备有限公司 | Automatic assembly system and assembly method for multi-way valve |
| CN114952285B (en) * | 2022-06-30 | 2023-10-31 | 浙江金麦特自动化系统有限公司 | Steering wheel combination switch assembly line |
| CN115533516A (en) * | 2022-10-08 | 2022-12-30 | 长兴县职业技术教育中心学校 | Automatic assembly system and process for automobile steering wheel switch |
| CN218136219U (en) * | 2022-10-08 | 2022-12-27 | 长兴县职业技术教育中心学校 | Automatic assembly production line for automobile handle |
-
2023
- 2023-07-28 CN CN202310939048.8A patent/CN116967727B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112077582A (en) * | 2020-09-29 | 2020-12-15 | 宁波经济技术开发区恒阳机械有限公司 | Automatic detection and assembly device for torsion of valve spring of automobile exhaust pipe |
| CN113523793A (en) * | 2021-07-23 | 2021-10-22 | 神通科技集团股份有限公司 | Filler cap pressure equipment detects frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116967727A (en) | 2023-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111300044B (en) | Multi-station transfer mechanism and motor bearing assembling equipment | |
| CN112008393B (en) | Valve body assembly system | |
| CN113794083A (en) | Automatic pin inserting equipment for carrier | |
| CN116967727B (en) | Automatic assembly system of PCU accessory | |
| CN116260294B (en) | Automatic press-fitting equipment for automobile motor stator | |
| CN113560438A (en) | Side riveting device for casing and front and rear end covers | |
| CN113290367A (en) | Motor assembling process, press-fitting device and assembling production line | |
| CN111933562B (en) | High-precision intelligent sorting equipment | |
| US6463781B2 (en) | System for drawing outer cylinder of rubber bush | |
| CN112536583A (en) | Bearing assembling machine | |
| CN219170721U (en) | Boat support assembling jig | |
| CN117260261A (en) | Solenoid valve automatic assembly frock and solenoid valve production system | |
| CN115319443A (en) | Metal pin shaft feeding, assembling and detecting integrated equipment | |
| CN213764756U (en) | Bearing assembling machine | |
| CN113601137B (en) | Compressor assembling equipment | |
| CN212823836U (en) | Fuel pump magnetic system goes out oil holder subassembly assembly quality | |
| CN111590320B (en) | Assembly device and assembly method for oil outlet seat assembly of fuel pump magnetic system | |
| CN112959036A (en) | Automatic bearing assembling machine for gearbox base and assembling method thereof | |
| CN218987869U (en) | Jig circulating device | |
| CN221248652U (en) | Magnet assembling machine | |
| CN117381412B (en) | Automatic assembly line for automobile power control unit | |
| CN217071255U (en) | Full-automatic canned product back cover machine | |
| CN220112844U (en) | Full-automatic inner cavity angle-fixing mechanism | |
| CN217849187U (en) | Rotor riveting machine | |
| CN220421616U (en) | Iron core welding equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |