CN110497124A - A kind of flexible welding clamp - Google Patents
A kind of flexible welding clamp Download PDFInfo
- Publication number
- CN110497124A CN110497124A CN201810474605.2A CN201810474605A CN110497124A CN 110497124 A CN110497124 A CN 110497124A CN 201810474605 A CN201810474605 A CN 201810474605A CN 110497124 A CN110497124 A CN 110497124A
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- workpiece
- pedestal
- clamp
- flexible welding
- support
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- 238000003466 welding Methods 0.000 title claims abstract description 53
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000003825 pressing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 10
- 230000035515 penetration Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention relates to a kind of flexible welding clamps, flexible welding clamp, including pedestal, the pedestal is equipped with the placement section for placing workpiece, on pedestal also swing be equipped with can towards workpiece and away from workpiece swing clamp arm, clamp arm has for workpiece to be pressed on the compressed part on placement section during the swing, in actual welding operating process, only can just can be realized the clamping of multi-thickness workpiece by one or seldom fixture.Relatively simple for structure and easy to use, the precision of clamping is higher.
Description
Technical field
The present invention relates to a kind of flexible welding clamps.
Background technique
With the fast development of modern mechanical manufacturing industry, the increasingly application of Lightweight Technology, motorbus skeleton is generally adopted
With shape steel bracket structure, wherein the group weldering of bracket or and the accounting that is welded in Bus Frame welding it is maximum, however the scene of bracket
Situation is complicated, and welding bad environments, weld seam quantity is more, and space moves towards complicated, and post welding distortion increases, correction work labor intensity
Greatly, currently, being generally used dedicated welding fixture for the big bracket of post welding distortion, i.e., be arranged on table top locating piece and
It is usually a kind of for bracket to be pressed on the clamp on locating piece, and in the prior art in order to adapt to the bracket of different-thickness
Bracket corresponds to a kind of fixture, causes the quantity of fixture more, and fixture parking space is big, and the replacement of fixture can be made frequent, folder
Have replacing construction is long, and labor intensity of workers is big etc..Meanwhile having in the prior art using the setting cushion block between clamp and bracket
Form adapts to different height, i.e., when backing thickness changes, replaces the cushion block of adaptation, meet the overall thickness of bracket and cushion block
The grip thickness of corresponding clamp can also realize the clamping of the bracket of multi-thickness using a fixture in this way, but this
Clamping mode, which can not achieve, to be continuously adjusted, and whole precision is lower.
Summary of the invention
The purpose of the present invention is to provide a kind of flexible welding clamps, can not be led to solving welding fixture in the prior art
For the Workpiece clamping that multi-thickness requires, cause clamping efficiency low, the problem of large labor intensity.
To achieve the above object, the technical solution of flexible welding clamp of the present invention is:
A kind of flexible welding clamp, including pedestal, the pedestal are equipped with the placement section for placing workpiece, also swing on pedestal
Being equipped with can have towards workpiece and the clamp arm swung away from workpiece, clamp arm for being during the swing pressed on workpiece
Compressed part on placement section.
Further, in order to guarantee no matter how the thickness of workpiece changes in a certain range, and compressed part can have
Have and press the contact position contacted with the upper surface of workpiece, the side backwards to workpiece that compressed part is located on clamp arm, which has, to be used for
The escape groove of workpiece seamed edge is avoided in workpiece pressing.Guarantee to contact between compressed part and workpiece in line, this contact form
Compared to the contact form for using face and face between the compressed part and workpiece of transmission, can evade completely higher in thickness of workpiece
When, the side plate face of compressed part, which causes to press with the seamed edge of workpiece due to raising, to be contacted, and then to the horizontal plane direction of workpiece
Lead to the problem that workpiece is mobile, positioning is inaccurate with certain thrust.
Further, in order to guarantee that the end of compressed part opposite with workpiece can contact, the trough wall surface of escape groove is arc
Shape face.The marginal position that workpiece can be located in prevents compressed part too deep with work pieces mate position and influences welding operation.
Further, be hinged with clamp in order to guarantee the reliability and stability compressed, on pedestal, one end of the clamp with
Pedestal articulated connection, clamp arm are hinged on the middle position of clamp, and the other end of clamp is constituted for driving clamp arm to act
Driving portion.The mode that this driving clamps can guarantee the reliability and stability compressed, and pressing force is bigger.
Further, in order to realize that the clamping of clamp arm keeps and clamp the automation of arm swing, flexible welding is pressed from both sides
Tool further includes the driving portion articulated connection of one end and clamp, and one end is hinged on the piston driving cylinder on pedestal.
Further, in order to meet the clamping needs of different length workpiece, the interference to welding position, pedestal packet are avoided
The support for including pedestal and being set on the base clamps arm swing and is assemblied on support, and pedestal is equipped with guide rail, has on support and uses
In the slide block structure for making support be oriented to sliding on pedestal with guide rail slidable fit.It is needing to carry out corresponding position while welding
When evacuation, it is thus only necessary to clamp arm is unclamped, it is corresponding that support is mobile backwards to position while welding.
Further, relatively fixed between slide block structure and guide rail in order to guarantee in clamping process, slide block structure
The locking mechanism along the opposite locking of guide direction is equipped between the guide rail.
Further, it locks and unlocks for convenience, the locking mechanism includes being threaded through on sliding block and and guide rail
Relatively fixed clamping screw.
Further, in order to realize the positioning to workpiece, influence of the positioning device to weld seam is avoided, is also had on pedestal
It is located in the positioning device on placement section for workpiece, and the positioning device includes workpiece being limited for cooperating with workpiece
Position block, the block include for the fixed stop portion outside the weld seam for being blocked in workpiece and the weldering for being blocked in workpiece
The active catch block portion sewed on, the active catch block portion are configured with for driving active block stop close to weld seam and away from the limit of weld seam
Piston cylinder.The welding region of weld seam is avoided in actual welding process, and to meet the working space of welding gun, therefore limit is set
Piston cylinder drives the active catch block portion far from weld seam and towards weld movement.
Further, in order to which the compact type of single unit system and active catch block portion can be realized block function, seat
Body includes pedestal and support base, and the clamping arm swing is assemblied on support base, and the pedestal is plate structure, the positioning dress
It installs in the side plate face backwards to positioning region, is additionally provided on the pedestal and passes through for active catch block portion so that active catch block portion
With the avoid holes or evacuation open slot of workpiece cooperation.
The beneficial effects of the present invention are: compared with the prior art, flexible welding clamp according to the present invention, by present
Assembly clamp arm is swung on body, it is opposite with corresponding workpiece in the compressed part swing process of clamp arm to clamp and take off relatively
From so as to realize the workpiece for being directed to different-thickness, with the swing of clamp arm, the compressed part on clamp arm all has adaptation
Clamping height and workpiece is pressed on positioning region, thus realize clamping is able to achieve to the workpiece of different-thickness, it is this soft
Property clamp structure for different-thickness workpiece have certain versatility can be only in actual welding operating process
It just can be realized the clamping of multi-thickness workpiece by one or seldom fixture.It is relatively simple for structure and easy to use, folder
Tight precision is higher.
Detailed description of the invention
Fig. 1 is the example structure schematic diagram of flexible welding clamp of the invention；
Fig. 2 is the front view that Fig. 1 removes workpiece；
Fig. 3 is the other side stereoscopic-state schematic diagram of Fig. 1.
Description of symbols: 1- pedestal；11- guide rail；12- limited block；13- fixed stop portion；2- workpiece；3- support；4-
Clamp arm；5- clamp；6- piston driving cylinder；7- clamping screw；8- compressed part；9- positioning device；91- limiting piston cylinder；92- is living
Dynamic stopper portions.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The embodiment of flexible welding clamp of the invention, as shown in Figure 1 to Figure 3, the fixture are suitable for auto parts and components
During the weld clamp of plate type bracket, certainly, in other embodiments, which is also applied for needing in other field to not
In the plate-like workpieces of stack pile or the welding process of profile workpiece.The flexible welding clamp include pedestal 1, support 3, clamp arm 4,
The structures such as piston driving cylinder 6 and positioning device 9, wherein in the present embodiment, pedestal 1 is plate profile structure, and thinner thickness is other
The installation supporting body of structure, in this way setting are the integrally-built stability of the placement and guarantee fixture in order to facilitate workpiece 2,
Also guarantee the reasonability of overall dimensions simultaneously.Certainly, in other embodiments, the specific constructive form of pedestal 1 without limitation, this
Field technical staff can arbitrarily design according to practical situation.
Pedestal 1 is equipped with the positioning region for positioning workpiece 2, and workpiece 2 is located on positioning region by positioning device 9,
Workpiece 2 can be limited in the horizontal direction, prevent workpiece 2 deflection and sliding on pedestal 1.In the present embodiment, fixed
Position portion is formed by the upper face of pedestal 1, guarantees the position stability of template workpiece 2.
For support 3 and clamp arm 4, the hinge axes of clamp arm 4 are defined along the longitudinal direction, then clamp arm 4 can be with
It swings up and down along hinge axes, and can be moved during the swing towards workpiece 2 and away from workpiece 2, simultaneously clamp on arm 4 and also have
There is the compressed part 8 being pressed on positioning region for workpiece 2, the up and down direction of workpiece 2 can be carried out by the setting of compressed part 8
Positioning is clamped, to realize that entirety of the workpiece 2 on pedestal 1 is fixed.Compressed part 8 by clamp arm 4 close workpiece 2 one end end
Portion is formed, and can facilitate processing in this way, and certainly in other embodiments, compressed part 8 can also be by the other positions of clamp arm 4
Structure is formed, and is not specifically limited.
Piston driving cylinder 6, which is used to be driven with clamp arm 4, to be cooperated to drive clamp arm 4 to swing, and in the present embodiment, piston drives
Dynamic cylinder 6 is that cylinder in other embodiments, can also be driven in the form of hydraulic cylinder certainly.Piston driving cylinder 6 and clamping
The specific driving relationship of arm 4 is described below.
For compressed part 8, the side backwards to workpiece 2 on clamp arm 4 positioned at compressed part 8 has for compressing work
The escape groove of 2 seamed edge of workpiece, in this way setting are avoided when part 2 primarily to guaranteeing the workpiece 2 for being directed to different-thickness, when workpiece 2
When being located on positioning region, according to the thickness of workpiece 2, compressed part 8 and the engagement height of the upper surface of workpiece 2 be will be different,
It is to guarantee no matter how the thickness of workpiece 2 changes in a certain range, and compressed part 8 can have and work that escape groove, which is arranged,
The contact position of the upper surface press contact of part 2, and it is contactless between the correspondence seamed edge and clamp arm 4 of workpiece 2, guarantee compressed part
It is contacted between 8 and workpiece 2 in line, this contact form is compared to using face and face between the compressed part 8 and workpiece 2 of transmission
Contact form can be evaded completely when 2 thickness of workpiece is higher, and the side plate face of compressed part 8 causes and workpiece 2 due to raising
Seamed edge press contact, and then there is certain figure thrust to the horizontal plane direction of workpiece 2 and cause workpiece 2 is mobile, positioning not
Quasi- problem.
Further, the slot arm face of above-mentioned escape groove is arcwall face, and in the present embodiment, setting is to guarantee in this way
The end of compressed part 8 opposite with workpiece 2 can contact, and can be located in the marginal position of workpiece 2, prevent compressed part 8 with
2 cooperation position of workpiece is too deep and influences welding operation.Certainly, in other embodiments, arcwall face may be towards pressing square
The arcwall face of convex can also guarantee have the line between compressed part 8 and workpiece 2 to contact in this way.
For the fit system of clamp arm 4 and piston driving cylinder 6, in the present embodiment, also cut with scissors on above-mentioned support 3
It is connected to clamp 5, clamp 5 is plate structure, and one end of plate structure and support 3 are hinged, the middle position of clamp arm 4 and clamp 5
Hingedly, while the parent of above-mentioned piston driving cylinder 6 and support 3 are hinged, and daughter and the other end of clamp 5 are hinged.Actual
In use process, clamp 5 is driven to swing by piston driving cylinder 6, during clamp 5 is swung relative to support 3, clamp arm 4
By the middle position of clamp 5 pushing tow and forward to lower swing, and then workpiece 2 is pressed on positioning region, clamp 5 is buying
Part can amplify clamping force.The mode that this driving clamps can guarantee the reliability and stability compressed, and pressing force is bigger.Certainly
In other embodiments, directly clamp arm 4 can also be hinged on support 3, clamp arm is directly driven by piston driving cylinder 6
4 one end is swung up and down can also be with.
Preferably, the flexible welding clamp may be implemented to have the function of different weld seams selectivity clamp, specifically with
For workpiece 2 as shown in the figure, for the triangle plate of a L shaped plate material and the both ends for needing to be weldingly fixed on L shaped plate material
Composition, for the welding between shape plate and triangle plate, in order to guarantee the work convenience of welding gun, in the present embodiment,
It uses and sets support 3 on pedestal 1 difference that also can be realized to workpiece 2 can be arranged in this way in the form of guiding movement
Clamping at position.Specific structure is that the guide rail 11 extended along the longitudinal direction is provided on pedestal 1, corresponding in support 3
Slide block structure is provided on lower end surface, which is formed by the lower end of support 3, and slide block structure and guide rail 11 are along front and back
It is slidably matched to guiding, when needing to avoid corresponding position while welding, it is thus only necessary to clamp arm 4 is unclamped, it is corresponding
Support 3 is mobile backwards to position while welding.Operate more convenient, and versatility is higher, can support with long length
Workpiece 2 welding.It is equipped with limited block 12 in the rear and front end of guide rail 11 simultaneously, prevents support 3 from sliding from guide rail 11.
In the present embodiment simultaneously, the locking knot along the opposite locking of guide direction is additionally provided between slide block structure and guide rail 11
Structure, it is specific to be provided with bolt penetration hole on slide block structure, long pore structure corresponding with bolt penetration hole is equipped on guide rail 11,
When needing to lock, bolt penetration hole and long pore structure are installed by clamping screw 7 guide rail 11 and slide block structure is relatively fixed
Locking.Certainly in other embodiments, can also be realized in the form of guide pin, it is corresponding be arranged on guide rail 11 it is intermittent
Pin hole, although continuity of the setting without clamped position in this way, also can be realized the clamping of different location；Locking mechanism
It also can be using the form in the outside of slide block structure and guide rail 11 setting adjustment type clip, when being moved to corresponding position, by card
Hoop is directly locked at the opposite outside of support 3 and guide rail 11.
For positioning device 9, in the present embodiment comprising for be blocked in pedestal 1 positioning region front and back and
The block of the left and right sides can be limited workpiece 2 by block, and in addition for block, block is by fission arrangement
Two parts composition is the fixed stop portion 13 being fixed on pedestal 1 and the movable active catch being blocked at corresponding position respectively
Block portion 92, positioning device 9 further include the limiting piston cylinder 91 for being used to drive active catch block portion 92 being arranged on pedestal 1, limit
Piston cylinder 91 and active catch block portion 92 cooperate and drive active catch block portion 92 to close to workpiece 2 and away from the direction of workpiece 2
It is mobile.Specific structure is that fixed stop portion 13 is arranged in the left side on pedestal 1 and being located at the positioning region of workpiece 2, active catch block portion
92 are arranged on pedestal 1 and are located at the front side of 2 positioning region of workpiece, and fixed stop portion 13 is trapezium structure, reduce and weld to workpiece
Influence, active catch block portion 92 is using rectangular parallelepiped structure, and when positioning to workpiece 2, two parts are able to achieve to work
2 limit block of part is merely capable of being blocked in the region outside the weld seam of workpiece 2 the difference is that the height in fixed stop portion 13 is lower
(i.e. in the present embodiment within the transverse slat plate thickness height of L shaped plate), which does not influence the weld seam of workpiece 2；And
The height of active catch block portion 92 is higher, and is arranged higher to guarantee accuracy and stability that workpiece 2 integrally positions in this way
Active catch block portion 92 need to avoid the welding region of weld seam in actual welding process, to meet the working space of welding gun,
Therefore setting limiting piston cylinder 91 drives the active catch block portion 92 far from weld seam and towards weld movement.
In the present embodiment simultaneously, limiting piston cylinder 91 is arranged in the side plate face of positioning region backwards of pedestal 1, in this way
Arrangement can make the overall structure of fixture more compact, while limiting piston cylinder 91 is oriented to sliding active stopper portions along the longitudinal direction
92 is mobile.Certainly in other embodiments, limiting piston cylinder 91 sliding active stopper portions 92 can also move in fact along the vertical direction
Now corresponding function.And the fixation position due to limiting piston cylinder 91 on pedestal 1, in order to guarantee the compact-sized of single unit system
Type and active catch block portion 92 can be realized block function, in the present embodiment, are additionally provided with and extend along the longitudinal direction simultaneously on pedestal 1
The avoid holes on the upper face of pedestal 1 are extended to for active catch block portion 92.Certainly in other embodiments, avoid holes may be
Avoid the structure of open slot.Positioning device 9 also can be arranged directly on the side of positioning region simultaneously.
Flexible welding clamp according to the present invention can clamp the workpiece of different plate thickness in the actual use process
2, fixture quantity is reduced, storage space is reduced；Clamp arm 4 can be locked in any position on guide rail 11, meet different length
The clamping for spending workpiece 2 needs, and avoids the interference to welding position；Positioning device 9 does not influence position while welding, easy to operate.
Claims (10)
1. a kind of flexible welding clamp, it is characterised in that: including pedestal, the pedestal is equipped with the placement for placing workpiece
Portion also swings on pedestal and is equipped with and can have towards workpiece and the clamp arm swung away from workpiece, clamp arm for swinging
The compressed part being pressed on workpiece in journey on placement section.
2. flexible welding clamp according to claim 1, it is characterised in that: be located at compressed part backwards on the clamp arm
The side of workpiece has the escape groove for avoiding workpiece seamed edge in workpiece pressing.
3. flexible welding clamp according to claim 2, it is characterised in that: the trough wall surface of the escape groove is arcwall face.
4. described in any item flexible welding clamps according to claim 1 ~ 3, it is characterised in that: be hinged with clamp on pedestal, institute
The one end and pedestal for stating clamp are articulated and connected, and clamp arm is hinged on the middle position of clamp, and the other end of clamp is constituted for driving
The driving portion of dynamic clamp arm movement.
5. flexible welding clamp according to claim 4, it is characterised in that: flexible welding clamp further includes one end and clamp
Driving portion articulated connection, one end is hinged on the piston driving cylinder on pedestal.
6. described in any item flexible welding clamps according to claim 1 ~ 3, it is characterised in that: pedestal includes that pedestal and setting exist
Support on pedestal clamps arm swing and is assemblied on support, and pedestal is equipped with guide rail, has on support and fills for sliding with guide rail
The slide block structure matched and support is made to be oriented to sliding on pedestal.
7. flexible welding clamp according to claim 6, it is characterised in that: set between the slide block structure and the guide rail
There is the locking mechanism along the opposite locking of guide direction.
8. flexible welding clamp according to claim 7, it is characterised in that: the locking mechanism includes being threaded through on sliding block
And opposite with guide rail fixed clamping screw.
9. described in any item flexible welding clamps according to claim 1 ~ 3, it is characterised in that: also have on the pedestal and be used for
Workpiece is located in the positioning device on placement section, and the positioning device includes for cooperating with workpiece and by workpiece
Block, the block include for the fixed stop portion outside the weld seam for being blocked in workpiece and the weld seam for being blocked in workpiece
Active catch block portion, the active catch block portion be configured with for driving active block stop close to weld seam and away from the limiting piston of weld seam
Cylinder.
10. flexible welding clamp according to claim 9, it is characterised in that: the pedestal includes pedestal and support base, institute
It states clamping arm swing to be assemblied on support base, the pedestal is plate structure, and the positioning device is arranged in backwards to positioning region
In the plate face of side, it is additionally provided on the pedestal and passes through the evacuation so that active catch block portion and workpiece cooperation for active catch block portion
Hole or evacuation open slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474605.2A CN110497124A (en) | 2018-05-17 | 2018-05-17 | A kind of flexible welding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474605.2A CN110497124A (en) | 2018-05-17 | 2018-05-17 | A kind of flexible welding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110497124A true CN110497124A (en) | 2019-11-26 |
Family
ID=68584429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474605.2A Pending CN110497124A (en) | 2018-05-17 | 2018-05-17 | A kind of flexible welding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110497124A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091504A (en) * | 2020-08-21 | 2020-12-18 | 上海金标文化创意股份有限公司 | Workpiece welding positioning tool clamp |
| CN113443424A (en) * | 2021-06-25 | 2021-09-28 | 东风柳州汽车有限公司 | Limiting device and hoisting and conveying mechanism |
| CN114833784A (en) * | 2022-04-24 | 2022-08-02 | 一汽解放大连柴油机有限公司 | Water inlet and outlet pipe assembly positioning tool |
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| CN208358130U (en) * | 2018-05-17 | 2019-01-11 | 郑州宇通客车股份有限公司 | flexible welding clamp |
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2018
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| US20130200057A1 (en) * | 2011-11-18 | 2013-08-08 | Lincoln Global, Inc. | System for mounting a tractor unit on a guide track |
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| CN112091504A (en) * | 2020-08-21 | 2020-12-18 | 上海金标文化创意股份有限公司 | Workpiece welding positioning tool clamp |
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| CN114833784A (en) * | 2022-04-24 | 2022-08-02 | 一汽解放大连柴油机有限公司 | Water inlet and outlet pipe assembly positioning tool |
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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 | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No. 6 Yutong Road, Guancheng Hui District, Zhengzhou City, Henan Province Applicant after: Yutong Bus Co.,Ltd. Address before: No.1 Yutong Road, Shibali River, Guancheng Hui District, Zhengzhou City, Henan Province Applicant before: ZHENGZHOU YUTONG BUS Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information |