CN110369847A - A kind of single-side resistance spot welding welding tooling and welding method for rail vehicle - Google Patents
A kind of single-side resistance spot welding welding tooling and welding method for rail vehicle Download PDFInfo
- Publication number
- CN110369847A CN110369847A CN201910774372.2A CN201910774372A CN110369847A CN 110369847 A CN110369847 A CN 110369847A CN 201910774372 A CN201910774372 A CN 201910774372A CN 110369847 A CN110369847 A CN 110369847A
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- workpiece
- welding
- copper platform
- spot welding
- resistance spot
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention discloses a kind of single-side resistance spot welding welding tooling and welding method for rail vehicle, welding tooling includes copper platform, is held down assembly and lifting assembly.It holds down assembly including crossbeam and compactor, crossbeam is located at the top of copper platform, moves along the longitudinal direction of copper platform, and compactor conforms to workpiece compression on copper platform, avoids generating relative displacement between workpiece and copper platform.Lifting assembly includes promoting driving assembly and lift lever, one end of workpiece is upturned by lifting assembly, the pad of curve surface of workpiece in shape and copper platform are tangent, in order to cooperate run trace when curve surface work pieces spot welding, convenient for the processing of workpiece.On the one hand copper platform is used as the cathode of single-side resistance spot welding, on the one hand to guarantee the flatness of workpiece, so that workpiece point postwelding unilateral side is not had impression, meet processing request.The welding tooling can meet the seamless processing request of flat work pieces and curve surface work pieces, be that the development of China's rail vehicle technology has active promoting function.
Description
Technical field
The present invention relates to rail vehicle technical field more particularly to a kind of single-side resistance spot welding welding for rail vehicle
Tooling and welding method.
Background technique
Resistance spot welding carries out the welding of cross wise reinforcement using mash welder, may be molded to reinforced mesh or skeleton, to replace people
Work binding.Compared with artificial binding, resistance spot welding is with welding deformation is small, effect is high, saves labour, finished product globality
Well, it saves material, reduce the features such as cost, being widely used in the welding of stainless steel, carbon steel, still, postwelding all has impression.
Currently, the compartment of rail vehicle is in process, in order to meet the production requirement of green, environmental protection, compartment is being welded
Coating treatment is not done after being connected into type.It is higher to the surface quality requirements in compartment in order to not influence aesthetics.If still using biography
The resistance spot welding process of system, obviously it is impossible to meet production requirements for the presence of impression.
Single-side resistance spot welding can make workpiece only in side there are impression, and another side does not have an impression, how by one-sided resistance
Spot-welding technology is maturely applied in the compartment processing of rail vehicle, is met its surface quality requirements, is domestic rail vehicle skill
The technical issues of solving is endeavoured always in art field.
Above- mentioned information disclosed in the background technique are used only for increasing the understanding to the application background technique, therefore,
It may include and do not constitute the prior art known to persons of ordinary skill in the art.
Summary of the invention
In view of this, the present invention proposes a kind of single-side resistance spot welding welding tooling for rail vehicle, after making welding
Workpiece unilateral side does not have impression, meets the surface quality requirements of workpiece.
For achieving the above object, the present invention, which adopts the following technical solutions, is achieved:
A kind of single-side resistance spot welding welding tooling for rail vehicle, comprising: copper platform is used to place workpiece and conduct
The cathode of single-side resistance spot welding；It holds down assembly comprising crossbeam and interval are set to multiple compactors on the crossbeam, the cross
Beam is located at the top of the copper platform and across the copper platform, and the crossbeam is moved along the longitudinal direction of the copper platform, institute
Compactor is stated for workpiece compression to be conformed to the copper platform；Lifting assembly comprising promote driving assembly and mention
Rising stem, the promotion driving assembly drive the lift lever to move up and down, the lift lever be used for by one end of the workpiece to
Direction far from the copper platform tilts.
Further, further includes: frame, the copper platform are fixed on the frame, and the frame is flat along the copper
The two sides of platform longitudinal direction are respectively equipped with guide rail, and the crossbeam is moved along the guide rail.
Further, further includes: compress driving assembly comprising the first cylinder mounting base and be fixed at first vapour
The first cylinder in cylinder mounting base, first cylinder connect with the crossbeam, the up and down motion for driving the crossbeam, institute
The first cylinder mounting base is stated to be slidably connected with the guide rail.
Further, described hold down assembly further includes the second cylinder, and second cylinder connect with the compactor, is used for
Drive the up and down motion of the compactor.
Further, each compactor is moved along the length direction of the crossbeam.
Further, the promotion driving assembly includes that ball-screw mounting base is installed with the ball-screw is fixed at
Ball-screw on seat, the ball-screw connect with the lift lever, the up and down motion for driving the lift lever.
Further, the lifting assembly further includes adjusting component, and the adjusting component includes that connecting rod and adjusting compress
Spinner handle, the connecting rod are connect with the ball-screw, and the connecting rod has hollow cavity open at one end, the lift lever
It is inserted in the hollow cavity through the opening, described adjust compresses spinner handle and pass through the side wall of the connecting rod for the promotion
Bar is fixed into the hollow cavity.
Further, the material of the copper platform be chromium-zirconium-copper, the copper platform with a thickness of 16-30mm.
The present invention also proposes a kind of single-side resistance spot welding welding method for rail vehicle, using welding as described above
Tooling, the welding method include: that the position of the crossbeam is adjusted according to the weld locations of workpiece to be processed, make the compression
Device is at the position the pad 20-40mm；The upper-lower height of the compactor is adjusted, the compactor will be described to be processed
Workpiece compression conforms on the copper platform；Point of resistance is carried out to the workpiece to be processed in the top of the workpiece to be processed
Weldering.
Further, welding method further include: according to the curve form of workpiece to be processed and weld locations adjusting
The height of lift lever, the lift lever tilt one end of the workpiece to be processed to the direction far from the copper platform；It is described
Pad and the copper platform on the curve form of workpiece to be processed is tangent.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention proposes a kind of single-side resistance spot welding welding tooling and welding method for rail vehicle, and welding tooling includes copper
Platform holds down assembly and lifting assembly.Workpiece is placed on copper platform, holds down assembly and workpiece compression is fitted in copper platform
On, it avoids generating relative displacement between workpiece and copper platform.When workpiece has curve form, by lifting assembly by workpiece
One end is upturned, and the pad of curve surface of workpiece in shape and copper platform are tangent, in order to cooperate row when curve surface work pieces spot welding
Track is walked, convenient for the processing of workpiece.On the one hand copper platform is used as the cathode of single-side resistance spot welding, on the one hand to guarantee workpiece
Flatness makes workpiece point postwelding unilateral side not have impression, meets processing request.The welding tooling can meet flat work pieces and curved surface work
The seamless processing request of part is that the development of China's rail vehicle technology has active promoting function.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is main view of the present invention for the single-side resistance spot welding welding tooling embodiment of rail vehicle；
Fig. 2 is the portion A enlarged drawing in Fig. 1；
Fig. 3 is side view of the present invention for the single-side resistance spot welding welding tooling embodiment of rail vehicle；
Fig. 4 is the portion B enlarged drawing in Fig. 3；
Fig. 5 is top view of the present invention for the single-side resistance spot welding welding tooling embodiment of rail vehicle.
Wherein, 100- copper platform, 200- hold down assembly, 210- compactor, the second cylinder of 220-, the first cylinder of 230-,
240- the first cylinder mounting base, 250- crossbeam, 260- transverse opening, 270- bolt, 300- lifting assembly, 310- lift lever,
320- ball-screw, 330- ball-screw mounting base, 340- connecting rod, 350-, which is adjusted, compresses spinner handle, 400- guide rail, 500- work
Part；
The longitudinal direction of Y- copper platform, the transverse direction of X- copper platform.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, term " on ", "lower", "left", "right", " perpendicular ", " cross ", "inner",
The direction of the instructions such as "outside" or the term of positional relationship are direction based on the figure or positional relationship, this is just for the sake of just
In description, rather than indication or suggestion described device or element must have a particular orientation, constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.
The present invention proposes a kind of single-side resistance spot welding welding tooling for rail vehicle, referring to figs. 1 to Fig. 5, including frame
Frame, as the installation carrier of other component, for copper platform 100 to be fixedly mounted, hold down assembly 200 and lifting assembly 300.Copper
Platform 100 is for placing workpiece 500 and the cathode as single-side resistance spot welding.Hold down assembly 200 include crossbeam 250 and interval
Multiple compactors 210 on crossbeam 250, crossbeam 250 are located at the top of copper platform 100 and across copper platform 100, crossbeams
250 along copper platform 100 longitudinal direction Y motion, compactor 210 be used for by workpiece 500 compression conforms to copper platform 100.Root
The movement of crossbeam 250 is adjusted according to the weld locations of workpiece 500, so that compactor 210 moves to corresponding position, convenient for work
The compression and spot welding of part 500.Compactor 210 can prevent from generating this relative displacement between workpiece 500 and copper platform 100, mention
High spot welding precision.Lifting assembly 300 includes promoting driving assembly and lift lever 310, is promoted on driving assembly driving lift lever 310
Lower movement, lift lever 310 are used to tilt one end of workpiece 500 to the direction far from copper platform 100.When workpiece 500 is curved surface
When shape, according to curve surface of workpiece in shape pad position adjust lifting assembly, curve surface of workpiece shape is made by lift lever 310
On pad and copper platform 100 it is tangent, in order to cooperate run trace when curve surface work pieces spot welding, convenient for the processing of workpiece.
Cathode of 100 one side of copper platform as single-side resistance spot welding makes workpiece 500 on the one hand to guarantee the flatness of workpiece 500
Point postwelding unilateral side does not have impression, meets processing request.The side of the not no impression of workpiece 5000 is workpiece 500 and copper platform 100
The side of fitting.The welding tooling can meet the seamless processing request of flat work pieces 500 and curve surface work pieces, be China's rail vehicle
The development of technology has active promoting function.
It is compressed when multiple compactors 210 are different with workpiece 500, according to the position of spot welding on workpiece 500 and workpiece 500
Specific structure, compactor 210 are selectively compressed with corresponding position on workpiece 500.
Frame is respectively equipped with guide rail 400 along the two sides of 100 longitudinal direction Y of copper platform, and crossbeam 250 is moved along guide rail 400, with
Realize crossbeam 250 along the movement of 100 longitudinal direction Y of copper platform.
Further, hold down assembly 200 further includes compressing driving assembly comprising the first cylinder mounting base 240 and fixed
The first cylinder 230 in the first cylinder mounting base 240, the first cylinder 230 are connect, for driving crossbeam 250 with crossbeam 250
Up and down motion, the first cylinder mounting base 240 is slidably connected with guide rail 400.By the first cylinder mounting base 240 along guide rail 400
Movement so that realize crossbeam 250 movement.According to the position of pad on workpiece 500, the first cylinder mounting base 240 will be along
Guide rail 400 moves, and driving crossbeam 250 moves to above weld locations.Then, the first cylinder 230 starts to act, and drives crossbeam
250 move downward, and make compactor 210 constantly close to workpiece 500.
Further, referring to Fig. 2, holding down assembly 200 further includes the second cylinder 220, the second cylinder 220 and compactor 210
Connection, the up and down motion for driving compactor 210.After under drive of the compactor 210 in crossbeam 250 close to workpiece 500, then
Start the second cylinder 220, the second cylinder 220 will drive compactor 210 to continue to move towards the direction close to workpiece 500, until pressure
Workpiece 500 is compressed the top for conforming to copper platform 100 by tight device 210.
Further, each compactor 210 can be moved left and right along the length direction of crossbeam 250, make compactor 210 with
Compacted position between workpiece 500 does not influence workpiece also while guaranteeing to compress workpiece 500 apart from pad 20-40mm
500 spot welding.
In the present embodiment, compactor 210 can use compactor common in the art, therefore the present embodiment is not to compression
The structure of device is described in detail.Compactor 210 is moved left and right relative to crossbeam 250, the present embodiment using transverse opening 260 with
The mode that bolt 270 fastens realizes that, specifically, crossbeam 250 is equipped with transverse opening 260, the upper end of compactor 210 is inserted in cross
It can move left and right into opening 260 and along transverse opening 260.After compactor 210, which is moved to, adapts to position, pass through spiral shell
Bolt 270 fastens compactor 210.
For lifting assembly 300 in the side of copper platform 100, the present embodiment, the quantity of lifting assembly 300 is two,
Every between two guide rails 400.Referring to Fig. 3 and Fig. 4, lifting assembly 300 includes promoting driving assembly and lift lever 310, is mentioned
The ball-screw 320 that driving assembly includes ball-screw mounting base 330 and is fixed in ball-screw mounting base 330 is risen, rolling
Ballscrew 320 connect with lift lever 310, the up and down motion for driving lift lever 310.It has been welded at the plane of workpiece 500
Cheng Hou when the circular arc of welding workpiece, lift lever 310 is protruded between workpiece 500 and copper platform 100 or by lift lever 310
It is directly protruding into inside workpiece 500, ball-screw 320 starts, and drives lift lever 310 to move upwards, namely be directed away from workpiece 500
Direction movement, workpiece 500 tilted.Workpiece 500 is upturned to the pad and copper platform on 500 curve form of workpiece
100 is tangent, in order to cooperate run trace when curve surface work pieces spot welding, convenient for the processing of workpiece 500.Until will entirely justify
After the completion of the welding position welding of arc, then it is transitioned into another subsequent welding of processing plane progress of workpiece 500.
In the present embodiment, workpiece 500 is the compartment of rail vehicle, and since compartment is hollow, lift lever 310 is inserted directly into
In the hollow structure inside in compartment.
Further, lifting assembly 300 further includes adjusting component, and adjusting component includes that connecting rod 340 and adjusting compress rotation
Bar 350, connecting rod 340 are connect with ball-screw 320, and connecting rod 340 has hollow cavity open at one end, and lift lever 310 passes through
Opening be inserted in hollow cavity, adjust compress spinner handle 350 pass through connecting rod 340 side wall by lift lever 310 be fixed to
In hollow cavity.According to the position of the size of workpiece 500, curve form and pad, adjusts lift lever 310 and protrude into work
Depth inside part 500, then spinner handle 350 is compressed by the fastening of lift lever 310 by adjusting.
Further, the spacing between two lifting assemblies 300 is adjustable, according to the size tune of workpiece 500
The spacing between two lifting assemblies 300 is saved, so that lift lever 310 is best to the promotion effect of workpiece 500.In the present embodiment,
Can be fixed on frame one for ball-screw mounting base 330 slide sliding rail, by the sliding of ball-screw mounting base 330 come
Realize that the spacing between two lift levers 310 is adjusted.
In any of the above-described embodiment, the material of copper platform 100 is chromium-zirconium-copper, copper platform 100 with a thickness of 16-30mm.It is logical
It crosses practice and learns that electric conductivity, thermal diffusivity and the hardness that the copper platform 100 of such setting can most preferably take into account resistance-welding process are wanted
It asks.
In any of the above-described embodiment, frame uses all steel welding structure, and soldering processes are used between frame and copper platform 100
It achieves a fixed connection.
In any of the above-described embodiment, the size due to being limited to copper platform 100 is limited, and copper platform 100 is put down by multiple sub- copper
Platform is seamlessly connected, using soldering or conductive glue connection between the sub- copper platform of adjacent two.
Invention additionally discloses a kind of welding methods for rail vehicle, using Welder disclosed in above-described embodiment
Dress, welding method include:
The position that crossbeam 250 is adjusted according to the weld locations of workpiece to be processed 500, makes compactor 210 apart from pad 20-
At the position 40mm, when conforming to compactor 210 compression of workpiece 500 on copper platform 100, and the spot welding of workpiece is not influenced；
The upper-lower height of adjusting compression device 210, compactor 210 conform to the compression of workpiece to be processed 500 on copper platform 100, with
It avoids generating relative displacement between workpiece 500 and copper platform 100, improves spot welding precision；
Resistance spot welding is carried out to workpiece to be processed in the top of workpiece to be processed 500, realization first compresses welds afterwards.
When needing at the actuated position in welding workpiece, welding method further includes;
Adjust the height of lift lever 310 according to the curve form of workpiece to be processed 500 and weld locations, lift lever 310 will be to
One end of workpieces processing is tilted to the direction far from copper platform 100；
Pad and copper platform 100 on the curve form of workpiece to be processed is tangent, in order to when cooperating curve surface work pieces spot welding
Run trace, convenient for the processing of workpiece.Until after the completion of the welding position of entire arc is welded, then it is transitioned into the another of workpiece
A processing plane carries out subsequent welding.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of single-side resistance spot welding welding tooling for rail vehicle characterized by comprising
Copper platform is used to place workpiece and the cathode as single-side resistance spot welding；
It holds down assembly comprising crossbeam and interval are set to multiple compactors on the crossbeam, and it is flat that the crossbeam is located at the copper
The top of platform and across the copper platform, the crossbeam is moved along the longitudinal direction of the copper platform, and the compactor is used for will
The workpiece compression conforms on the copper platform；
Lifting assembly comprising promote driving assembly and lift lever, the promotion driving assembly drives the lift lever to transport up and down
Dynamic, the lift lever is used to tilt one end of the workpiece to the direction far from the copper platform.
2. the single-side resistance spot welding welding tooling according to claim 1 for rail vehicle, which is characterized in that also wrap
It includes:
Frame, the copper platform are fixed on the frame, and the frame is distinguished along the two sides of the copper platform longitudinal direction
Equipped with guide rail, the crossbeam is moved along the guide rail.
3. the single-side resistance spot welding welding tooling according to claim 2 for rail vehicle, which is characterized in that also wrap
It includes:
Compress driving assembly comprising the first cylinder mounting base and the first vapour being fixed in the first cylinder mounting base
Cylinder, first cylinder connect with the crossbeam, the up and down motion for driving the crossbeam, the first cylinder mounting base with
The guide rail is slidably connected.
4. the single-side resistance spot welding welding tooling according to claim 3 for rail vehicle, which is characterized in that
Described hold down assembly further includes the second cylinder, and second cylinder is connect, for driving the compression with the compactor
The up and down motion of device.
5. the single-side resistance spot welding welding tooling according to claim 4 for rail vehicle, which is characterized in that
Each compactor is moved along the length direction of the crossbeam.
6. the single-side resistance spot welding welding tooling according to claim 1 for rail vehicle, which is characterized in that
The ball wire for promoting driving assembly and including ball-screw mounting base and being fixed in the ball-screw mounting base
Thick stick, the ball-screw connect with the lift lever, the up and down motion for driving the lift lever.
7. the single-side resistance spot welding welding tooling according to claim 6 for rail vehicle, which is characterized in that
The lifting assembly further includes adjusting component, and the adjusting component includes that connecting rod and adjusting compress spinner handle, the connection
Bar is connect with the ball-screw, and the connecting rod has hollow cavity open at one end, and the lift lever is inserted through the opening
In the hollow cavity, it is described adjust compress spinner handle pass through the connecting rod side wall by the lift lever be fixed to
In the hollow cavity.
8. the single-side resistance spot welding welding tooling of rail vehicle, feature are used for described in any one of -7 according to claim 1
It is,
The material of the copper platform be chromium-zirconium-copper, the copper platform with a thickness of 16-30mm.
9. a kind of single-side resistance spot welding welding method for rail vehicle, which is characterized in that using as appointed in claim 1-8
Welding tooling described in one, the welding method include:
The position that the crossbeam is adjusted according to the weld locations of workpiece to be processed makes the compactor apart from the pad
At the position 20-40mm；
The upper-lower height of the compactor is adjusted, workpiece to be processed compression is conformed to the copper platform by the compactor
On；
Resistance spot welding is carried out to the workpiece to be processed in the top of the workpiece to be processed.
10. the single-side resistance spot welding welding method according to claim 9 applied to rail vehicle, which is characterized in that also
Include:
The height of the lift lever is adjusted according to the curve form of workpiece to be processed and weld locations, the lift lever will be described
One end of workpiece to be processed is tilted to the direction far from the copper platform；
Pad and the copper platform on the curve form of the workpiece to be processed is tangent.
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| CN201910774372.2A CN110369847A (en) | 2019-08-21 | 2019-08-21 | A kind of single-side resistance spot welding welding tooling and welding method for rail vehicle |
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| CN115178848A (en) * | 2022-09-15 | 2022-10-14 | 华兴智慧(北京)科技有限公司 | But high accuracy spot welder of automatic identification location |
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Application publication date: 20191025 |
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| RJ01 | Rejection of invention patent application after publication |