CN110315268B - Positioning and locking device and automobile welding assembly production line comprising same - Google Patents
Positioning and locking device and automobile welding assembly production line comprising same Download PDFInfo
- Publication number
- CN110315268B CN110315268B CN201910690155.5A CN201910690155A CN110315268B CN 110315268 B CN110315268 B CN 110315268B CN 201910690155 A CN201910690155 A CN 201910690155A CN 110315268 B CN110315268 B CN 110315268B
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- assembly
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- pressure head
- positioning
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- 238000003466 welding Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000012546 transfer Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method 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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a positioning and locking device and an automobile welding assembly production line comprising the same, wherein the automobile welding assembly production line comprises a locking seat assembly and a side wall supporting assembly, and the side wall supporting assembly can be close to or far from the locking seat assembly; the locking seat assembly is fixedly connected with an X-direction limiting assembly, a Z-direction limiting assembly and a Y-direction pressure head assembly, the side wall supporting assembly is fixedly connected with an X-direction positioning block matched with the X-direction limiting assembly, a Z-direction positioning block matched with the Z-direction limiting block and a pressure plate matched with the Y-direction pressure head assembly, and a hole for the Y-direction pressure head assembly to pass through is formed in the pressure plate. The invention adopts the molded surface positioning to ensure the rapid locking and positioning precision of the multi-side-wall clamp support, so that the welding state of the floor and the side wall is kept relatively stable, the production quality is ensured, and the working efficiency is improved.
Description
Technical Field
The invention relates to a locking device and an automobile welding assembly production line, belongs to the technical field of automobile welding assembly equipment, and particularly relates to a positioning locking device and an automobile welding assembly production line comprising the same.
Background
In the general assembly welding process of the automobile, the floor and the side wall are required to be assembled and welded, so that the welding precision is guaranteed, the positioning requirements on the floor and the side wall are higher, and the post production problem is caused by welding errors. Most of the existing locking and positioning devices adopt zero point positioning and locking to realize point-to-point positioning, so that the requirement on the machining precision of multiple devices is high, machining and mounting errors are easy to generate, the positioning and clamping precision of the side wall clamp is affected, the problems of low welding precision, dislocation and the like are caused, and the locking force is limited, so that a series of other quality problems can be caused.
Disclosure of Invention
The invention aims to provide a positioning and locking device and an automobile welding assembly production line comprising the same, which adopt profile positioning to ensure the rapid locking and positioning precision of multi-side wall clamp support, ensure the welding state of a floor and side walls to be relatively stable, ensure the production quality and improve the working efficiency.
In order to solve the technical problems, the invention adopts a positioning and locking device which comprises a locking seat assembly and a side wall supporting assembly, wherein the side wall supporting assembly can be close to or far from the locking seat assembly; the locking seat assembly is fixedly connected with an X-direction limiting assembly, a Z-direction limiting assembly and a Y-direction pressure head assembly, the side wall supporting assembly is fixedly connected with an X-direction positioning block matched with the X-direction limiting assembly, a Z-direction positioning block matched with the Z-direction limiting block and a pressure plate matched with the Y-direction pressure head assembly, and a hole for the Y-direction pressure head assembly to pass through is formed in the pressure plate.
In a preferred embodiment of the present invention, the X-direction limiting assembly includes a first base on which a pair of first pulleys are mounted at intervals along the X-direction, and a central axis of the first pulleys is disposed along the Z-direction.
In a preferred embodiment of the present invention, the Z-direction limiting assembly includes a second base on which a pair of second pulleys are mounted, the second pulleys being spaced apart along the Z-direction, and a central axis of the second pulleys being disposed along the X-direction.
In a preferred embodiment of the invention, the Y-direction pressure head assembly comprises a cylinder, a crank block mechanism and a pressure head, wherein the cylinder, the crank block mechanism and the pressure head are arranged along the Y direction, a slide block of the crank block mechanism is fixedly connected with the cylinder, and a connecting rod end of the crank block mechanism is connected with the pressure head.
In a preferred embodiment of the invention, the crank slide block mechanism comprises a guide slide bar fixedly connected to the locking seat assembly along the Y direction, a crank hinged with the locking seat assembly is arranged below the guide slide bar, the guide slide bar is connected with the crank through a connecting rod, and the end part of the connecting rod is connected with the pressure head.
In a preferred embodiment of the invention, the bottom of the side wall supporting component is fixedly connected with a Y guide pulley arranged along the Y direction and an X guide pulley arranged along the X direction, and a bracket arranged along the X direction is arranged on the side wall supporting component.
In a preferred embodiment of the invention, the X-guide pulley and the Y-guide pulley are located in different horizontal planes.
The invention also discloses an automobile welding assembly production line, which comprises a floor clamp mounting frame arranged along the X direction, Y-direction conveying lines arranged along the Y direction are arranged on two sides of the floor mounting frame, side wall clamp mounting frames arranged along the X direction are connected to the Y-direction conveying lines in a sliding fit manner, the automobile welding assembly production line also comprises the positioning locking mechanism device, locking seat assemblies are symmetrically arranged on two sides of the floor mounting frame, side wall supporting assemblies are connected to the Y-direction conveying lines arranged along the Y direction in a sliding fit manner, and side wall clamp mounting frames are fixedly connected to the side wall supporting assemblies.
In a preferred embodiment of the invention, two sides of the Y-direction conveying line are respectively provided with an X-direction conveying line arranged along the X direction, and the two X-direction conveying lines are connected through a U-shaped conveying line to form a circulating line for conveying the side wall clamp mounting frame.
In a preferred embodiment of the invention, the U-shaped conveying line comprises two circulating conveying lines which are arranged at intervals along the X direction and a conveying rail which is arranged between the two circulating conveying lines along the X direction, and each circulating conveying line comprises two conveying rails which are arranged along the Y direction and a butt joint rail which is connected to the conveying rails in a sliding fit manner and is arranged along the X direction.
The beneficial effects of the invention are as follows: the invention has the advantages of high repeated positioning precision, rapid locking, high reliability, low failure rate, convenient processing, maintenance and the like, and realizes the positioning and locking structure of the side wall clamp mounting frame by adopting the profile positioning and lever principle and through the matching of the X-direction limiting assembly, the Z-direction limiting assembly, the Y-direction pressure head assembly, the X-direction positioning block, the Z-direction positioning block and the pressing plate on the locking seat assembly; furthermore, the X-direction limiting assembly and the Z-direction limiting assembly disclosed by the invention are limited by adopting the roller structures, so that the friction between the limiting assembly and the positioning block is effectively reduced, and the service life of the equipment is prolonged; furthermore, the Y-direction pressure head assembly adopts the Y-direction arranged air cylinder, the crank slide block mechanism and the pressure head, so that the locking force strength is high, and the positioning precision between the floor and the side wall can be effectively ensured; furthermore, the invention discloses an automobile welding assembly production line, which can be effectively applied to assembly welding of floors and side walls of various vehicle types through reasonable design of a floor clamp mounting frame, a Y-direction conveying line, a side wall clamp mounting frame and a positioning and locking device.
Drawings
FIG. 1 is an assembled schematic view of a positioning and locking device of the present invention;
FIG. 2 is a schematic view of a locking seat assembly of a positioning and locking device according to the present invention;
FIG. 3 is a front view of a locking seat assembly of the positioning and locking device of the present invention;
fig. 4 is a schematic diagram of a crank block mechanism of a positioning and locking device of the present invention.
FIG. 5 is a schematic view of a side wall support assembly of a positioning and locking device of the present invention;
FIG. 6 is a front view of a side wall support assembly of a positioning and locking device of the present invention;
FIG. 7 is a schematic view of an automobile welding assembly line;
FIG. 8 is a drawing showing an axle test of an automobile welding assembly line;
FIG. 9 is a top view of an automobile welding assembly line;
in the figure, the locking seat assembly, the 2-side wall supporting assembly, the 3-X direction limiting assembly, the 4-Z direction limiting assembly, the 5-Y direction pressure head assembly, the 6-X direction positioning block, the 7-Z direction positioning block, the 8-pressing plate, the 9-hole, the 10-Y direction guide pulley, the 11-X direction guide pulley, the 12-bracket, the 3.1-first base, the 3.2-first pulley, the 4.1-second base, the 4.2-second pulley, the 5.1-cylinder, the 5.2-crank sliding block mechanism, the 5.3-pressure head, the 5.2-1-guide sliding rod, the 5.2-2-crank, the 5.2-3-connecting rod, the 5.3-pressure head, the A-floor mounting frame, the B-Y direction conveying line, the C-side wall clamp mounting frame, the D-X direction conveying line, the E-U type conveying line, the F-circulation conveying line, the G-conveying track, the H-conveying guide rail and the K-butt joint guide rail.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in the drawings of the specification, the invention discloses a positioning and locking device, which comprises a locking seat assembly 1 and a side wall supporting assembly 2, wherein the side wall supporting assembly 2 can move along the Y direction; the locking seat assembly 1 is fixedly connected with an X-direction limiting assembly 3, a Z-direction limiting assembly 4 and a Y-direction pressure head assembly 5, the side wall supporting assembly 2 is fixedly connected with an X-direction positioning block 6 matched with the X-direction limiting assembly 3, a Z-direction positioning block 7 matched with the Z-direction limiting assembly 4 and a pressure plate 8 matched with the Y-direction pressure head assembly 5, and the pressure plate 8 is provided with a hole 9 for the Y-direction pressure head assembly 5 to pass through.
The X-direction limiting assembly 3 comprises a first base 3.1, a pair of first pulleys 3.2 which are arranged at intervals along the X-direction cloth are arranged on the first base 3.1, the central axis of each first pulley 3.2 is arranged along the Z-direction, the first pulleys 3.2 are tangent to the end faces of two sides of the X-direction positioning block 6, limiting pads which are used for being matched with the pressure head assembly 5 are arranged on the first base 3.1, and the arrangement positions of the limiting pads correspond to the arrangement positions of the X-direction positioning block 6.
The Z-direction limiting assembly 4 comprises a second base 4.1, a pair of second pulleys 4.2 which are arranged at intervals along the Z-direction cloth are arranged on the second base 4.1, the central axis of each second pulley 4.2 is arranged along the X-direction, the second pulleys 4.2 are tangential with the upper end face and the lower end face of the Z-direction positioning block 7, limiting pads which are matched with the pressure head assembly 5 are arranged on the second base 4.1, and the arrangement positions of the limiting pads correspond to the arrangement positions of the Z-direction positioning block 7.
The Y-direction pressure head assembly 5 comprises an air cylinder 5.1, a crank block mechanism 5.2 and a pressure head 5.3 which are arranged along the Y direction, a slide block of the crank block mechanism 5.2 is fixedly connected with the air cylinder 5.1, and a connecting rod end of the crank block mechanism 5.2 is connected with the pressure head 5.3. The crank slide block mechanism 5.2 comprises a guide slide bar 5.2-1 fixedly connected to the locking seat assembly 1 along the Y direction, a crank 5.2-2 hinged with the locking seat assembly 1 is arranged below the guide slide bar 5.2-1, the guide slide bar 5.2-1 is connected with the crank 5.2-2 through a connecting rod, and the end part of the connecting rod is connected with a pressure head 5.3. The pressure head 5.3 applies external force to the inner wall of the side wall supporting component 2, and the relative positions of the locking seat component 1 and the side wall supporting component 2 are fixed through the cooperation of the X-direction positioning block 6 and the Z-direction positioning block 7 and the respective limiting pads.
Preferably, the bottom of the side wall supporting component 2 is fixedly connected with a Y guide pulley 10 arranged along the Y direction and an X guide pulley 11 arranged along the X direction, and the side wall supporting component 2 is provided with a bracket 12 arranged along the X direction. The X-guide pulley 11 and the Y-guide pulley 10 are located in different horizontal planes.
The quick locking device adopts the profile positioning and lever principle to carry out locking structural design, thereby realizing quick locking and accurate positioning of equipment. The quick locking device is characterized in that a cylinder piston rod pushes a connector connecting rod to slide on a sliding block, and meanwhile, a pressing arm pressing block is driven to rotate to 90 degrees along a shaft under the action of the connecting rod, so that a side wall clamp supporting assembly is locked. The Y-direction positioning blocks of the locking mechanism respectively buckle the side wall supporting assemblies X, Z to the positioning blocks under the action of the roller guide, so that the quick positioning and locking of the side wall supporting assemblies XY and ZY directions is realized, the locking force strength is high, wherein the resultant force of the Y-direction is up to 50KN, the positioning precision between the floor and the side wall is ensured, the production beat is shortened, and the production efficiency is improved
The invention discloses an automobile welding assembly production line, which comprises a floor clamp mounting frame A arranged along an X direction, wherein the floor clamp mounting frame A is provided with floor clamps, two sides of the floor mounting frame A are provided with Y-direction conveying lines B arranged along a Y direction, side wall clamp mounting frames C arranged along the X direction are connected to the Y-direction conveying lines B in a sliding fit manner, side wall clamps are arranged on the side wall clamp mounting frames C, the automobile welding assembly production line also comprises a positioning locking mechanism device, locking seat assemblies 1 are symmetrically arranged on two sides of the floor mounting frame A, side wall supporting assemblies 2 are connected to the Y-direction conveying lines B arranged along the Y direction in a sliding fit manner, and the side wall supporting assemblies 2 are fixedly connected with the side wall clamp mounting frames C. Two sides of the Y-direction conveying line B are respectively provided with an X-direction conveying line D which is arranged along the X direction, and the two X-direction conveying lines D are connected through a U-shaped conveying line E to form a circulating line for conveying the side wall clamp mounting frame C. The U-shaped conveying line E comprises two circulating conveying lines F which are arranged at intervals along the X direction and a conveying track G which is arranged between the two circulating conveying lines F along the X direction, and each circulating conveying line F comprises two conveying guide rails H which are arranged along the Y direction and a butt joint guide rail K which is connected to the conveying guide rails H in a sliding fit manner and is arranged along the X direction. Side wall anchor clamps mounting bracket C can be along X to transfer chain D and U type transfer chain E circulation operation, can arrange a plurality of delivery track G at 2 circulation transfer chain F of U type transfer chain E simultaneously, is provided with 1 or more side wall anchor clamps mounting bracket C on every track, and side wall anchor clamps of different motorcycle types can be installed to side wall anchor clamps mounting bracket C to make equipment can be fit for the welding of various types of vehicles.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides an automobile welding assembly production line, includes floor jig mounting bracket (A) of arranging along X is to, floor jig mounting bracket (A) both sides are provided with Y to transfer chain (B) of arranging along Y to, sliding fit is connected with side wall jig mounting bracket (C) of arranging along X to on Y to transfer chain (B), its characterized in that: the device also comprises a positioning and locking mechanism device, wherein the positioning and locking mechanism device comprises a locking seat assembly (1) and a side wall supporting assembly (2), and the side wall supporting assembly (2) can be close to or far away from the locking seat assembly (1); the locking seat assembly (1) is fixedly connected with an X-direction limiting assembly (3), a Z-direction limiting assembly (4) and a Y-direction pressure head assembly (5), the side wall supporting assembly (2) is fixedly connected with an X-direction positioning block (6) matched with the X-direction limiting assembly (3), a Z-direction positioning block (7) matched with the Z-direction limiting assembly (4) and a pressure plate (8) matched with the Y-direction pressure head assembly (5), and the pressure plate (8) is provided with a hole (9) for the Y-direction pressure head assembly (5) to pass through; the X-direction limiting assembly (3) comprises a first base (3.1), a pair of first pulleys (3.2) which are arranged at intervals along the X-direction are arranged on the first base (3.1), and the central axis of each first pulley (3.2) is arranged along the Z-direction; z is to spacing subassembly (4) including second base (4.1), install a pair of second pulley (4.2) of arranging along Z to cloth interval on second base (4.1), the axis of second pulley (4.2) is arranged along X to, Y is to pressure head subassembly (5) including cylinder (5.1), slider crank mechanism (5.2) and pressure head (5.3) of arranging along Y to, slider of slider crank mechanism (5.2) with cylinder (5.1) rigid coupling, slider crank mechanism (5.2) link end is connected with pressure head (5.3), and external force is applyed in the inner wall of side wall supporting component (2) pressure head (5.3), and has realized through the cooperation of X to locating piece (6) and Z to locating piece (7) and respective spacing pad that locking seat subassembly (1) and side wall supporting component (2) relative position's are fixed, the bilateral symmetry of floor mounting bracket (A) is provided with locking seat subassembly (1), arrange along Y to side wall supporting component (2) on the side wall supporting component (C) is connected with side wall supporting component (2).
2. The automobile welding assembly line according to claim 1, wherein: two sides of the Y-direction conveying line (B) are respectively provided with an X-direction conveying line (D) which is arranged along the X direction, and the two X-direction conveying lines (D) are connected through a U-shaped conveying line (E) to form a circulating line for conveying the side wall clamp mounting frame (C).
3. The automobile welding assembly line according to claim 2, wherein: the U-shaped conveying line (E) comprises two circulating conveying lines (F) which are arranged at intervals along the X direction and a conveying rail (G) which is arranged between the two circulating conveying lines (F) along the X direction, and each circulating conveying line (F) comprises two conveying guide rails (H) which are arranged along the Y direction and a butt joint guide rail (K) which is connected to the conveying guide rails (H) in a sliding fit manner and is arranged along the X direction.
4. The automobile welding assembly line according to claim 1, wherein: the crank sliding block mechanism (5.2) comprises a guide sliding rod (5.2-1) fixedly connected to the locking seat assembly (1) along the Y direction, a crank (5.2-2) hinged to the locking seat assembly (1) is arranged below the guide sliding rod (5.2-1), the guide sliding rod (5.2-1) is connected with the crank (5.2-2) through a connecting rod, and the end part of the connecting rod is connected with the pressure head (5.3).
5. The automobile welding assembly line according to claim 1, wherein: the bottom of the side wall supporting component (2) is fixedly connected with a Y guide pulley (10) arranged along the Y direction and an X guide pulley (11) arranged along the X direction, and a bracket (12) arranged along the X direction is arranged on the side wall supporting component (2).
6. The automobile welding assembly line according to claim 5, wherein: the X guide pulley (11) and the Y guide pulley (10) are located in different horizontal planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690155.5A CN110315268B (en) | 2019-07-29 | 2019-07-29 | Positioning and locking device and automobile welding assembly production line comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690155.5A CN110315268B (en) | 2019-07-29 | 2019-07-29 | Positioning and locking device and automobile welding assembly production line comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110315268A CN110315268A (en) | 2019-10-11 |
| CN110315268B true CN110315268B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910690155.5A Active CN110315268B (en) | 2019-07-29 | 2019-07-29 | Positioning and locking device and automobile welding assembly production line comprising same |
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| Country | Link |
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| CN (1) | CN110315268B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894476A (en) * | 2021-11-11 | 2022-01-07 | 安徽瑞祥工业有限公司 | Locking box body mechanism of automobile assembly main splicing system |
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| CN104801899A (en) * | 2015-04-01 | 2015-07-29 | 广州明珞汽车装备有限公司 | Ground sliding type flexible end assembling system |
| CN107962335A (en) * | 2017-12-28 | 2018-04-27 | 上汽通用五菱汽车股份有限公司 | A kind of multi-direction retaining mechanism in place of turntable |
| CN108890206A (en) * | 2018-08-29 | 2018-11-27 | 广州德恒汽车装备科技有限公司 | It is a kind of to be welded the flexible side peripheral clamp frame positioning clamping device always spelled for white body |
| CN208696660U (en) * | 2018-09-11 | 2019-04-05 | 湖北德梅柯焊接装备有限公司 | One kind being used for vehicle body total-assembly clamping locking device in place |
| CN210703293U (en) * | 2019-07-29 | 2020-06-09 | 东风设计研究院有限公司 | Positioning and locking device and automobile welding assembly production line |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837138B (en) * | 2012-08-13 | 2014-12-31 | 广州明珞汽车装备有限公司 | Collinear flexible head splicer suitable for multiple vehicle types |
-
2019
- 2019-07-29 CN CN201910690155.5A patent/CN110315268B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801899A (en) * | 2015-04-01 | 2015-07-29 | 广州明珞汽车装备有限公司 | Ground sliding type flexible end assembling system |
| CN107962335A (en) * | 2017-12-28 | 2018-04-27 | 上汽通用五菱汽车股份有限公司 | A kind of multi-direction retaining mechanism in place of turntable |
| CN108890206A (en) * | 2018-08-29 | 2018-11-27 | 广州德恒汽车装备科技有限公司 | It is a kind of to be welded the flexible side peripheral clamp frame positioning clamping device always spelled for white body |
| CN208696660U (en) * | 2018-09-11 | 2019-04-05 | 湖北德梅柯焊接装备有限公司 | One kind being used for vehicle body total-assembly clamping locking device in place |
| CN210703293U (en) * | 2019-07-29 | 2020-06-09 | 东风设计研究院有限公司 | Positioning and locking device and automobile welding assembly production line |
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| CN110315268A (en) | 2019-10-11 |
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Effective date of registration: 20231026 Address after: 430056 block a, Donghe center, No. 1, Dongfeng Third Road, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: Wuhan Dongyan intelligent design and Research Institute Co.,Ltd. Address before: 430056, No. 1, Dongfeng central, No. three Dongfeng Road, Wuhan economic and Technological Development Zone, Hubei, Wuhan, A Applicant before: DONGFENG DESIGN INSTITUTE Co.,Ltd. |
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