CN114406571B - Separable positioning device - Google Patents
Separable positioning device Download PDFInfo
- Publication number
- CN114406571B CN114406571B CN202210095060.0A CN202210095060A CN114406571B CN 114406571 B CN114406571 B CN 114406571B CN 202210095060 A CN202210095060 A CN 202210095060A CN 114406571 B CN114406571 B CN 114406571B
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- CN
- China
- Prior art keywords
- positioning
- positioning unit
- spring
- base
- locking arm
- 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.)
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Links
- 239000000428 dust Substances 0.000 claims description 25
- 238000003466 welding Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention belongs to the technical field of white car body welding, in particular to a separable positioning device, which comprises: the detachable positioning device utilizes a mode of separating the positioning unit from the positioning foundation to enable a place in positioning contact with a white car body to be made into a non-standard part, and other positions are made into standard parts, so that the clamp is very strong in compatible production capacity, simple in structural design and low in development cost.
Description
Technical Field
The invention belongs to the technical field of white car body welding, and particularly relates to a separable positioning device.
Background
The positioning fixture on the repair welding line of the welding production workshop of the whole vehicle manufacturing enterprise is generally fixed or in a turnover mode, as shown in the following figure 1. The fixed clamp can only position one or one white car body with the same positioning characteristics of the platform, and can not effectively avoid white car bodies of other car types, so that interference problems are easy to form; the turnover type positioning clamp can only position one type of white car body, and can effectively avoid white car bodies of other car types because the turnover type positioning clamp can turn to a lower position, but because the occupied space is relatively large, other car type positioning clamps are difficult to arrange beside the turnover type positioning clamp, and the flexibility is not high. Thus, neither fixed nor flip-type positioning fixtures are suitable for positioning applications requiring high flexibility.
Disclosure of Invention
The invention provides a separable positioning device, which uses a mode of separating a positioning unit and a positioning foundation to enable a place contacted with a white car body to be made into a non-standard part, and other places are made into standard parts, so that only a non-standard part is required to be replaced when a car type is switched to another car type, and the standard part can be continuously used, thus the clamp has very strong compatible production capacity, simple structural design and low development cost, and has very wide application prospect in repair welding lines which require compatible production of multiple car types.
The technical scheme of the invention is as follows:
a detachable positioning device, comprising: positioning unit and location basis, positioning unit detachable installs location basis upper portion, location basis upper portion is provided with sleeve module and spacing groove, positioning unit includes location portion and lower location portion, it is in to go up location portion demountable installation lower location portion top, it includes locating pin and locating piece that connect gradually from last down to go up location portion, lower location portion includes bolt, tongs grabbing portion, stopper, sleeve cooperation portion and the locking portion that connect gradually from the top down, sleeve cooperation portion with sleeve module cooperation on the location basis, the stopper with the spacing groove cooperation.
The locating pin is a pin for locating the white car body;
the positioning block is used for supporting the white car body;
the bolt is used as a part matched with the positioning sleeve and is designed into a standard part, a grabbing position of a gripper, a matched position with the sleeve and a locking position of the bolt are designed on the bolt, and a limiting block is also arranged on the bolt to play roles in preventing rotation and dust;
the gripper grabbing part is a grabbing position of the external gripper when the positioning unit is automatically switched;
the sleeve matching part is directly matched with a sleeve on the positioning unit;
the locking part is a locking arm compression action position on the positioning basis, and the compression arm acts on the locking part to lock the positioning unit;
the positioning base and the positioning unit can be separated, and the positioning base has a self-locking function through the acting force of the spring; the positioning unit is divided into a standard part and a nonstandard part, namely, the upper positioning part is set to be the nonstandard part, the lower positioning part is set to be the standard part, the standard part is matched with the positioning foundation, and the nonstandard part is used for directly positioning the white car body, so that the white car body can be flexibly designed and applied for different car types.
Preferably, the positioning foundation further comprises a base, a first spring, a positioning unit locking arm, a second spring, a positioning unit pressing arm and a rotating support, one end of the positioning unit locking arm is connected with the base through the first spring, the other end of the positioning unit locking arm is connected with the tail end of the rotating support through the second spring, the rotating support is rotatably arranged on the base, the middle part of the positioning unit locking arm is rotatably arranged on the base, the tail end of the positioning unit locking arm is abutted to the positioning unit, one end of the positioning unit locking arm is hinged to the base, the middle part of the positioning unit pressing arm is movably connected with the other end of the rotating support, and the locking part is matched with the tail end of the positioning unit pressing arm. In the invention, the first spring is a spring of a locking arm of the positioning unit, and applies acting force to the locking arm to press the positioning unit;
positioning unit locking arm: directly acting on the positioning unit, and locking the positioning unit under the action of the first spring and the second spring;
and a second spring: the spring of the locking arm of the positioning unit applies an acting force to the locking arm to press the positioning unit;
and (3) a sleeve module: the positioning unit is used for installing the sleeve, the positioning unit is inserted into the sleeve, and the sleeve module is also provided with a limiting block, so that an error-proofing effect is achieved;
the sleeve module is designed to be integrally adjustable and used for ensuring the position accuracy;
the positioning unit pressing arm presses the locking position, and the positioning unit can be locked by the action of the positioning unit pressing arm on the locking position;
preferably, the other end of the positioning unit pressing arm is connected with a dust cover and a third spring, the other end of the dust cover is movably connected with the base, the other end of the third spring is connected with the base, and the dust cover is matched with the sleeve module. The dustproof cover plays a role in dustproof the sleeve module, and prevents impurities such as dust, welding slag and the like from entering the sleeve to influence the matching precision. When the positioning unit is inserted into the sleeve, the bottom of the positioning unit is used for pressing the arm against the positioning unit, so that the dust cover is in an open state. Wherein, positioning unit presses arm: and controlling the closing and opening states of the dust cover, wherein the third spring is used as a closing spring of the pressing arm of the positioning unit, and when the positioning unit is taken away, the dust cover can be automatically closed under the acting force of the spring.
Preferably, the number of the limiting blocks is 3, the limiting blocks are arranged on the periphery of the positioning unit, and the number of the limiting blocks is 3, and the number of the limiting blocks is more than 2. By adopting the limiting blocks with different specifications, when different positioning units are not placed in alignment, the limiting blocks cannot be matched in place, so that the error proofing effect is achieved.
Preferably, the first spring is disposed above the positioning unit locking arm, and the second spring is disposed below the positioning unit locking arm. The locking arm of the positioning unit can be directly acted on the positioning unit, restoring force in two directions can be provided, and the positioning unit is locked under the action of the first spring and the second spring.
The beneficial effects of the invention are as follows:
the detachable positioning device utilizes a mode that the positioning unit and the positioning foundation are separated, a place in positioning contact with the white automobile body is made into a non-standard part, other positions are made into standard parts, only the non-standard part is needed to be replaced when one automobile type is switched to another automobile type, and the standard part can be continuously used, so that the clamp is very strong in compatible production capacity, simple in structural design and low in development cost, and has a very wide application prospect in repair welding lines requiring compatible production of multiple automobile types.
Three limiting blocks with different specifications are arranged on the positioning unit to play roles in preventing rotation and error.
The dust cover plays a dustproof role on the sleeve module, prevents impurities such as dust, welding slag and the like from entering the sleeve, and influences the matching precision.
Drawings
Fig. 1 is a schematic structural view of a detachable positioning device according to the present invention.
Fig. 2 and 3 are schematic structural views of a positioning unit according to the present invention, wherein fig. 3 is a bottom view of fig. 2.
Fig. 4 and 5 are schematic structural views of a positioning base according to the present invention, wherein fig. 4 is a schematic view of a dust cover in a closed state.
Fig. 6 is a schematic diagram of the operation of a detachable positioning device according to the present invention.
In the figure: the device comprises a 1-positioning unit, a 101-upper positioning part, 1011-positioning pins, 1012-positioning blocks, 102-lower positioning parts, 1021-gripper grabbing parts, 1022-limiting blocks, 1023-sleeve matching parts, 1024-locking parts and 1025-bolts;
the device comprises a 2-positioning base, a 201-sleeve module, a 202-limiting groove, a 203-base, a 204-first spring, a 205-positioning unit locking arm, a 206-second spring, a 207-positioning unit pressing arm, a 208-rotating support and a 209-third spring;
3-dust cap.
Detailed Description
The invention will be further described with reference to the drawings and detailed description which follow, wherein examples of the invention and their description are for the purpose of illustration and are not intended to be unduly limiting.
In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like 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 structure to be 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.
Example 1:
as shown in fig. 1 to 5, a separable positioning device includes: positioning unit 1 and location basis 2, positioning unit 1 detachable installation is in location basis 2 upper portion, location basis 2 upper portion is provided with sleeve module 201 and spacing groove 202, positioning unit 1 includes upper positioning portion 101 and lower positioning portion 102, upper positioning portion 101 detachable installation is in lower positioning portion 102 top, upper positioning portion 101 includes locating pin 1011 and locating piece 1012 that connect gradually from top to bottom, lower positioning portion 102 includes bolt 1025, tongs portion 1021, stopper 1022, sleeve cooperation portion 1023 and locking portion 1024 that connect gradually from the top down, sleeve cooperation portion 1023 with sleeve module 201 cooperation on the location basis 2, stopper 1022 with spacing groove 202 cooperation.
As shown in fig. 6, in this embodiment, the separable positioning device uses a manner of separating the positioning unit 1 and the positioning base 2, that is, the upper positioning portion 101 is set to be a non-standard portion, the lower positioning portion 102 is set to be a standard portion, the standard portion is matched with the positioning base 2, and the non-standard portion directly positions the white body, so that the separable positioning device can be flexibly designed and applied for different vehicle types, and has good flexibility.
Example 2:
as shown in fig. 1, a detachable positioning device includes: the positioning unit 1 and the positioning foundation 2 are detachably arranged at the upper part of the positioning foundation 2;
as shown in fig. 5, a sleeve module 201 and a limit groove 202 are arranged at the upper part of the positioning foundation 2;
as shown in fig. 2, the positioning unit 1 includes an upper positioning portion 101 and a lower positioning portion 102, the upper positioning portion 101 is detachably mounted above the lower positioning portion 102, the upper positioning portion 101 includes a positioning pin 1011 and a positioning block 1012 sequentially connected from top to bottom, the lower positioning portion 102 includes a plug pin 1025, a grip grabbing portion 1021, a stopper 1022, a sleeve mating portion 1023 and a locking portion 1024 sequentially connected from top to bottom, the sleeve mating portion 1023 mates with the sleeve module 201 on the positioning base 2, and the stopper 1022 mates with the stopper groove 202.
The positioning pin 1011 is a pin for positioning the body-in-white;
the positioning block 1012 is used for supporting the white car body;
the plug pin 1025 is used as a part matched with the positioning sleeve and is designed into a standard part, a grabbing position of a gripper, a matched position with the sleeve and a locking position of the plug pin 1025 are designed on the plug pin 1025, and a limiting block 1022 is also arranged on the plug pin to play roles in preventing rotation and dust;
the gripper grabbing part 1021 is a position where the external gripper grabs when the positioning unit 1 is automatically switched;
the sleeve fitting portion 1023 is directly fitted with the sleeve on the positioning unit 1;
the locking part 1024 is a locking arm pressing action position on the positioning base 2, where the locking arm acts to lock the positioning unit 1;
as shown in fig. 4 and 5, in this embodiment, the positioning base 2 further includes a base 203, a first spring 204, a positioning unit locking arm 205, a second spring 206, a positioning unit pressing arm 207, and a rotating support 208, one end of the positioning unit locking arm 205 is connected to the base 203 through the first spring 204, and the other end is connected to the end of the rotating support 208 through the second spring 206, the rotating support 208 is rotatably disposed on the base 203, the middle part of the positioning unit locking arm 205 is rotatably disposed on the base 203, the end of the positioning unit locking arm 205 is abutted to the positioning unit 1, one end of the positioning unit locking arm 205 is hinged to the base 203, the middle part of the positioning unit pressing arm 207 is movably connected to the other end of the rotating support 208, and the locking part 1024 is matched with the end of the positioning unit pressing arm 207. In the invention, the first spring 204 is a spring of the locking arm 205 of the positioning unit, and applies a force to the locking arm to press the positioning unit 1;
as shown in fig. 4, the positioning unit lock arm 205: directly acting on the positioning unit 1, locking the positioning unit 1 under the action of the first spring 204 and the second spring 206;
second spring 206: the spring of the positioning unit locking arm 205 applies a force to the locking arm to press the positioning unit 1;
sleeve module 201: the positioning unit 1 is provided with a sleeve, the positioning unit 1 is inserted into the sleeve, and the sleeve module 201 is also provided with a limiting block 1022, so that an error-proofing effect is achieved;
the sleeve module 201 is designed to be integrally adjustable for ensuring the position accuracy thereof;
the positioning unit pressing arm 207 presses the locking position, and the positioning unit 1 can be locked by the action of the positioning unit pressing arm 207 on the locking position;
as shown in fig. 5, in this embodiment, the other end of the positioning unit pressing arm 207 is connected with a dust cover 3 and a third spring 209, the other end of the dust cover 3 is movably connected with the base 203, the other end of the third spring 209 is connected with the base 203, and the dust cover 3 is matched with the sleeve module 201. The dust cover 3 in this embodiment plays a dustproof role on the sleeve module 201, and prevents impurities such as dust and welding slag from entering the sleeve and affecting the matching accuracy. When the positioning unit 1 is inserted into the sleeve, the dust cover 3 is in an open state by pressing the arm 207 against the bottom of the positioning unit 1. Wherein, positioning unit presses arm 207: the third spring 209 is used as a closing spring of the positioning unit pressing arm 207 to control the closing and opening states of the dust cover 3, and when the positioning unit 1 is removed, the dust cover 3 is automatically closed under the action of the spring.
As shown in fig. 3, in this embodiment, the number of the limiting blocks 1022 is 3, the limiting blocks 1022 are disposed at the periphery of the positioning unit 1, and the 3 limiting blocks 1022 are set to 2 or more specifications. By adopting the limiting blocks 1022 with different specifications, when different positioning units 1 are placed in an improper way, the positioning units cannot be matched in place, and an error-proofing effect is achieved.
As shown in fig. 4, in the present embodiment, the first spring 204 is disposed above the positioning unit locking arm 205, and the second spring 206 is disposed below the positioning unit locking arm 205. The positioning unit locking arm 205 can be directly acted on the positioning unit 1, and can provide restoring force in two directions, and the positioning unit 1 is locked under the action of the first spring and the second spring.
As shown in fig. 6, in this embodiment, the principle of the cooperation between the positioning base 2 and the positioning unit 1 is as follows:
the external forces F1 and F2 are used for acting on the positioning unit locking arm 205 and the positioning unit pressing arm 207;
the positioning unit pressing arm 207 and the dust cover 3 are opened;
the positioning unit 1 is inserted into the sleeve module 201;
the positioning unit 1 is put in place, and the bottom of the positioning unit 1 is propped against the tight point of the positioning unit locking arm 205. If the positioning unit 1 is misplaced, the positioning unit cannot be put in place;
the external forces F1 and F2 are removed, the positioning unit locking arm 205 locks the positioning unit 1 under the restoring force of the first spring 204 and the second spring 206, and the positioning unit pressing arm 207 abuts against the pressing locking portion 1024 to lock the positioning unit 1.
Claims (4)
1. A separable positioning device, comprising: the positioning unit (1) and the positioning foundation (2), the positioning unit (1) is detachably arranged on the upper portion of the positioning foundation (2), a sleeve module (201) and a limiting groove (202) are formed in the upper portion of the positioning foundation (2), the positioning unit (1) comprises an upper positioning portion (101) and a lower positioning portion (102), the upper positioning portion (101) is detachably arranged above the lower positioning portion (102), the upper positioning portion (101) comprises a positioning pin (1011) and a positioning block (1012) which are sequentially connected from top to bottom, the lower positioning portion (102) comprises a plug pin (1025), a hand grabbing portion (1021), a limiting block (1022), a sleeve matching portion (1023) and a locking portion (1024) which are sequentially connected from top to bottom, the sleeve matching portion (1023) is matched with the sleeve module (201) on the positioning foundation (2), and the limiting block (1022) is matched with the limiting groove (202); the positioning foundation (2) further comprises a base (203), a first spring (204), a positioning unit locking arm (205), a second spring (206), a positioning unit pressing arm (207) and a rotating support (208), one end of the positioning unit locking arm (205) is connected with the base (203) through the first spring (204) and the other end of the positioning unit locking arm is connected with the tail end of the rotating support (208) through the second spring (206), the rotating support (208) is rotatably arranged on the base (203), the middle part of the positioning unit locking arm (205) is rotatably arranged on the base (203), the tail end of the positioning unit locking arm (205) is abutted to the positioning unit (1), one end of the positioning unit locking arm (205) is hinged to the base (203), the middle part of the positioning unit pressing arm (207) is movably connected with the other end of the rotating support (208), and the locking part (1024) is matched with the tail end of the positioning unit pressing arm (207).
2. A detachable positioning device according to claim 1, wherein: the other end of the positioning unit pressing arm (207) is connected with a dust cover (3) and a third spring (209), the other end of the dust cover (3) is movably connected with the base (203), the other end of the third spring (209) is connected with the base (203), and the dust cover (3) is matched with the sleeve module (201).
3. A detachable positioning device according to claim 1, wherein: the number of the limiting blocks (1022) is 3, the limiting blocks (1022) are arranged on the periphery of the positioning unit (1), and the number of the limiting blocks (1022) is more than 2.
4. A detachable positioning device according to claim 1, wherein: the first spring (204) is arranged above the positioning unit locking arm (205), and the second spring (206) is arranged below the positioning unit locking arm (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095060.0A CN114406571B (en) | 2022-01-26 | 2022-01-26 | Separable positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095060.0A CN114406571B (en) | 2022-01-26 | 2022-01-26 | Separable positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114406571A CN114406571A (en) | 2022-04-29 |
| CN114406571B true CN114406571B (en) | 2024-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210095060.0A Active CN114406571B (en) | 2022-01-26 | 2022-01-26 | Separable positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114406571B (en) |
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| CN202114427U (en) * | 2011-04-26 | 2012-01-18 | 上海特思克汽车科技有限公司 | Round telescopic pin mechanism |
| CN205014970U (en) * | 2015-09-28 | 2016-02-03 | 浙江吉利汽车研究院有限公司 | Be used for white automobile body measuring location locking device |
| CN207372712U (en) * | 2017-10-12 | 2018-05-18 | 武汉凯沃森工业科技有限公司 | A kind of spring positioning clamping device |
| CN208601388U (en) * | 2018-08-03 | 2019-03-15 | 北京汽车研究总院有限公司 | A kind of vehicle cubing positioning compression device |
| CN211193589U (en) * | 2019-11-19 | 2020-08-07 | 广汽乘用车有限公司 | Quick change mechanism for clamp unit |
| CN211262276U (en) * | 2020-05-25 | 2020-08-14 | 常锐技术(天津)有限公司 | Examine a compaction positioning device |
| CN212399363U (en) * | 2020-06-24 | 2021-01-26 | 东风华神汽车有限公司 | Positioning fixture for body-in-white |
| CN113043007A (en) * | 2021-04-01 | 2021-06-29 | 东风本田汽车有限公司 | Bolt tightening shaft, automatic bolt tightening device and control method thereof |
| CN215200350U (en) * | 2020-12-30 | 2021-12-17 | 上汽通用五菱汽车股份有限公司 | Quick plug positioning mechanism |
-
2022
- 2022-01-26 CN CN202210095060.0A patent/CN114406571B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202114427U (en) * | 2011-04-26 | 2012-01-18 | 上海特思克汽车科技有限公司 | Round telescopic pin mechanism |
| CN205014970U (en) * | 2015-09-28 | 2016-02-03 | 浙江吉利汽车研究院有限公司 | Be used for white automobile body measuring location locking device |
| CN207372712U (en) * | 2017-10-12 | 2018-05-18 | 武汉凯沃森工业科技有限公司 | A kind of spring positioning clamping device |
| CN208601388U (en) * | 2018-08-03 | 2019-03-15 | 北京汽车研究总院有限公司 | A kind of vehicle cubing positioning compression device |
| CN211193589U (en) * | 2019-11-19 | 2020-08-07 | 广汽乘用车有限公司 | Quick change mechanism for clamp unit |
| CN211262276U (en) * | 2020-05-25 | 2020-08-14 | 常锐技术(天津)有限公司 | Examine a compaction positioning device |
| CN212399363U (en) * | 2020-06-24 | 2021-01-26 | 东风华神汽车有限公司 | Positioning fixture for body-in-white |
| CN215200350U (en) * | 2020-12-30 | 2021-12-17 | 上汽通用五菱汽车股份有限公司 | Quick plug positioning mechanism |
| CN113043007A (en) * | 2021-04-01 | 2021-06-29 | 东风本田汽车有限公司 | Bolt tightening shaft, automatic bolt tightening device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114406571A (en) | 2022-04-29 |
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