CN220560781U - Quick clamp replacing device - Google Patents

Quick clamp replacing device Download PDF

Info

Publication number
CN220560781U
CN220560781U CN202321959442.XU CN202321959442U CN220560781U CN 220560781 U CN220560781 U CN 220560781U CN 202321959442 U CN202321959442 U CN 202321959442U CN 220560781 U CN220560781 U CN 220560781U
Authority
CN
China
Prior art keywords
quick
clamp
mechanically connected
main support
side bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202321959442.XU
Other languages
Chinese (zh)
Inventor
崔兴摇
唐晟
王亚冲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Master Lightweight Technology Tianjin Co ltd
Original Assignee
Master Lightweight Technology Tianjin Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Master Lightweight Technology Tianjin Co ltd filed Critical Master Lightweight Technology Tianjin Co ltd
Priority to CN202321959442.XU priority Critical patent/CN220560781U/en
Application granted granted Critical
Publication of CN220560781U publication Critical patent/CN220560781U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

The utility model relates to a clamp quick-changing device, which is used for realizing the quick position switching of a plurality of clamps and mainly comprises the following components: the rotary table comprises a rotary table, a main support and at least one side support, wherein the main support is mechanically connected with the rotary table, a plurality of side supports are uniformly distributed around the main support and are mechanically connected with the main support, the side supports are used for installing a fixing clamp, and the main support can drive the plurality of side supports to rotate along with the rotary table so as to realize position transformation of the side supports; the side bracket is provided with at least one locating pin assembly, at least one first clamping unit and at least one second clamping unit; the locating pin assembly is mechanically connected with the side support to achieve fixture locating, and the first clamping unit and the second clamping unit are respectively mechanically connected with the side support to achieve fixture assembling and disassembling and fixture fixing. The utility model has reasonable design, good safety, quick response and high working efficiency, saves manpower and material resources, and is suitable for automatic and intelligent mass production.

Description

Quick clamp replacing device
Technical Field
The utility model belongs to the field of automobile production and manufacturing, and particularly relates to a clamp quick-changing device.
Background
In the field of automobile production and manufacturing, in particular to an automobile automation production line, different types of automobile parts of different automobile types are frequently required to be switched between different stations, so that a robot is used for carrying out operations such as rapid welding, riveting and turnover on workpieces, in the prior art, when different clamps are replaced, time and labor are wasted, the working efficiency is affected, the requirements of rapid production and assembly of the automobiles of various automobile types at present cannot be met, and therefore, the problem is particularly necessary.
Disclosure of Invention
The utility model aims to provide a clamp quick-change device which drives the quick-change operation of a plurality of clamp stations through a turntable, is suitable for various clamps, has good universality, improves the production efficiency and meets the quick production and assembly requirements of users.
In order to achieve the above object, an embodiment of the present utility model provides a fixture quick-change device for implementing quick-change of positions of a plurality of fixtures, including: the device comprises a turntable, a main support and at least one side support, wherein the main support is mechanically connected with the turntable, a plurality of side supports are uniformly distributed around the main support and are mechanically connected with the main support, the side supports are used for installing a fixing clamp, and the main support can drive the side supports to rotate along with the turntable so as to realize position transformation of the side supports; the side bracket is provided with at least one locating pin assembly, at least one first clamping unit and at least one second clamping unit; the locating pin assembly is mechanically connected with the side support to achieve clamp locating, and the first clamping unit and the second clamping unit are respectively mechanically connected with the side support and can perform opening and closing actions to achieve loading and unloading of the clamp and clamping fixation.
Further, the side support is also provided with a gas-electricity quick-plug unit, and the gas-electricity quick-plug unit is mechanically fixed on the side support and used for realizing quick connection with a gas circuit and a circuit of the clamp.
Further, the side support is further provided with a guide wheel assembly and a supporting wheel assembly, and the guide wheel assembly and the supporting wheel assembly are mechanically installed on at least one of two sides of the bottom of the side support, so that the supporting and guiding functions of the clamp are realized, and the clamp can enter and exit the station conveniently.
Further, the side bracket is also provided with at least one quick positioning unit which is mechanically mounted on the side bracket for realizing quick pin joint fixation of the clamp.
Preferably, the first clamping unit, the second clamping unit, the gas-electric quick-insertion unit and the quick positioning unit are provided with at least one of a driving cylinder and a driving motor.
Further, the side bracket is further provided with an identification unit, and the identification unit is mechanically connected with the side bracket for identifying the type of the clamp.
Preferably, the method further comprises: at least one partition mechanically coupled to the main support or the side support for effecting isolation of the plurality of clamp stations.
Optionally, the method further comprises: and the counterweight component is mechanically connected with the side bracket and is used for realizing counterweight of the clamp quick-change device.
Further, the turntable includes: the turntable comprises a base, a motor and a transmission mechanism, wherein the motor is fixed on the base and drives the turntable to rotate through the transmission mechanism.
The utility model relates to a clamp quick-changing device, which has the beneficial effects that: the utility model has reasonable design, utilizes the turntable to drive the main bracket and the side brackets to rotate, realizes the quick switching of the clamp in the production line, utilizes the clamping units to realize the quick fixing of the clamp, has good safety and quick response, and facilitates the quick assembly and disassembly of the clamp through the guide wheel component and the support wheel component, thereby saving time and labor; the identification unit is utilized to automatically identify various clamp types, so that the degree of intelligence is improved; the fixture quick-change device provided by the utility model has the advantages of good safety and high working efficiency, saves manpower and material resources, and is suitable for automatic and intelligent mass production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present utility model and are not limiting of the present utility model.
Fig. 1 is a perspective structure diagram of a clamp quick-change device according to an embodiment of the present utility model;
FIG. 2 is a partial view of portion A of FIG. 1;
FIG. 3 is a partial view of portion B of FIG. 1;
fig. 4 is a perspective view of a turntable according to an embodiment of the present utility model;
FIG. 5 is a perspective view of a working state of a quick clamp-changing device according to an embodiment of the present utility model;
fig. 6 is a perspective view of a fixture seat according to an embodiment of the present utility model.
In the figure:
1. a turntable; 11. a base; 12. a motor; 13. a transmission mechanism; 2. a main support; 3. a side bracket; 31. a locating pin assembly; 32. a first clamping unit; 33. an identification unit; 34. a gas-electricity quick-plug unit; 35. a second clamping unit; 36. a guide wheel assembly; 37. a support wheel assembly; 38. a quick positioning unit; 4. a partition plate; 5. a clamp seat; 6. a counterweight assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The positions of the described objects in the embodiments in the figures such as "up", "down", "left", "right", "front", "rear", etc. are merely used to indicate the relative positional relationship, and when the absolute position of the described object in the embodiments is changed, the relative positional relationship may be changed accordingly.
A quick-change device for a clamp according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a three-dimensional structure diagram of a clamp quick-change device provided by an embodiment of the utility model; FIG. 2 shows a partial view of section A of FIG. 1; FIG. 3 shows a partial view of section B of FIG. 1; fig. 4 shows a perspective structure diagram of a turntable provided by an embodiment of the present utility model; fig. 5 is a perspective view showing an operating state of the quick clamp-changing device according to the embodiment of the utility model; fig. 6 shows a three-dimensional structure diagram of a fixture seat according to an embodiment of the present utility model. As shown in fig. 1 to 6, the quick clamp changing device provided by the embodiment of the utility model is suitable for realizing quick switching of positions of various clamps in an automobile production line, and includes: the turntable 1, the main support 2 and at least one side support 3, wherein the turntable 1 comprises: the quick clamp replacing device comprises a base 11, a motor 12 and a transmission mechanism 13, wherein the motor 12 is fixed on the base 11 and drives the turntable 1 to rotate through the transmission mechanism 13, the base 11 is generally fixed on the ground or a working table surface to realize the position fixing of the whole quick clamp replacing device, and a control system in a production line is used for controlling the start and stop of the motor 12 to control the rotation angle of the turntable 1, so that the quick position switching of the quick clamp replacing device is realized; the main support 2 is mechanically connected with the turntable 1, a plurality of side supports 3 are uniformly distributed around the main support 2 and are mechanically connected with the main support 2, the main support 2 can be made into a polygonal structure according to the needs of a user to be connected with a plurality of side supports 3, a quadrilateral structural form of the main support 2 is shown in fig. 1, and the four side supports 3 are correspondingly included, so that four fixture stations can be placed by using the four side supports 3, of course, the main support 2 can also be three-sided, five-sided, six-sided and the like, the structural form is not limited, the structural form corresponding to the specific number of sides of the main support 2 is not limited, one side support 3 is fixedly connected at the position of each side of the main support 2, the side supports 3 are used for installing fixing fixtures, and the main support 2 can drive the plurality of side supports 3 to rotate along with the turntable 1 so as to realize the position conversion of the side supports 3; the side bracket 3 in the embodiment of the utility model is made into an L shape, which can be matched with the structural form of the clamp seat 5 in fig. 6, and the clamp seat 5 is provided with a clamp of a corresponding type, so that the clamp can be fixed on the clamp seat 5, the clamp seat 5 can be placed on the side bracket 3 and realize quick station entering and exiting, and when the turntable 1 rotates, a plurality of clamp positions can be quickly switched, of course, only one structural form of the clamp seat 5 is shown, including but not limited to the structural form of the clamp seat 5 shown in fig. 6; specifically, the side bracket 3 is provided with at least one locating pin assembly 31, at least one first clamping unit 32, at least one second clamping unit 35; the positioning pin assembly 31 is mechanically connected with the side bracket 3 for realizing fixture positioning, the positioning pin assembly 31 is in pin joint positioning with the corresponding position on the fixture seat 5 to ensure that the positioning precision of the fixture seat 5 meets the requirement of a user, the first clamping unit 32 and the second clamping unit 35 are respectively mechanically connected with the side bracket 3 and can perform opening and closing actions for realizing loading and unloading and clamping fixation of the corresponding position on the fixture, the first clamping unit 32 and the second clamping unit 35 are usually provided with driving cylinders and are matched with clamping blocks in corresponding structural forms for realizing rapid clamping fixation of the fixture seat 5, and the first clamping unit 32 and the second clamping unit 35 can be opened and closed under the driving of the driving cylinders so as to facilitate loading and unloading or clamping of the fixture on the corresponding side bracket 3. In the embodiment of the present utility model, the structure of the first clamping unit 32 and the second clamping unit 35 and the installation position of the side bracket 3 are shown in fig. 1, and two first clamping units 32 and four second clamping units 35 are used on each side bracket 3, however, the number of the first clamping units 32 and the second clamping units 35 and the installation positions can be adjusted correspondingly according to the structure of the side bracket 3 and the clamp seat 5.
In the quick clamp replacing device provided by the embodiment of the utility model, the side bracket 3 is further provided with the gas-electric quick plug unit 34, and the gas-electric quick plug unit 34 is mechanically fixed on the side bracket 3 for realizing quick connection with the gas circuit and the circuit on the clamp. Specifically, the gas-electric quick-plug unit 34 is generally provided with a driving cylinder and is matched with an interface in a corresponding structural form to realize automatic and quick communication of the gas path and the circuit in the clamp so as to achieve the purpose of controlling the action of the clamp, and the driving cylinder drives the extension or retraction action of the interface part in the gas-electric quick-plug unit 34 to realize the communication and disconnection of the gas path and the circuit, so that the action is quick; in fig. 2, a structural form of the gas-electric quick-inserting unit 34 is shown, the interface forms of the gas circuit and the circuit in the gas-electric quick-inserting unit 34 are matched with the gas circuit and the circuit interface on the clamp, so that the clamp quick-changing device can adapt to various clamp models under the condition of unifying the interfaces of various clamps, the universality of the gas-electric quick-inserting unit 34 can be improved, the adaptability of the clamp quick-changing device is better, and the connection is quick and convenient.
In the quick clamp replacing device provided by the embodiment of the utility model, in order to facilitate loading and unloading of the clamp, the side bracket 3 is further provided with the guide wheel assembly 36 and the support wheel assembly 37, wherein the guide wheel assembly 36 and the support wheel assembly 37 are mechanically arranged on at least one of two sides of the bottom of the side bracket 3 and are used for realizing the supporting and guiding functions of the clamp and facilitating the work station of the clamp to enter and exit, the support wheel assembly 37 is provided with the roller to realize the rolling supporting function of the clamp, so that the loading and unloading of the clamp is more labor-saving, the guide wheel assembly 36 on the side surface of the side bracket 3 is provided with the other roller to play a limiting and guiding role on the clamp seat 5, the positioning precision of the clamp seat 5 is improved, and the quick replacement of the clamp seat 5 and the corresponding clamp thereon is facilitated. The structure and distribution of the guide wheel assemblies 36 and the supporting wheel assemblies 37 are shown in fig. 1, and four guide wheel assemblies 36 and four supporting wheel assemblies 37 are respectively arranged on two sides of the bottom of each side bracket 3, however, the number and specific installation positions of the guide wheel assemblies 36 and the supporting wheel assemblies 37 can be correspondingly adjusted according to the needs of users, and the use is not particularly limited herein.
In the quick clamp replacing device provided by the embodiment of the utility model, further, the side bracket 3 is also provided with at least one quick positioning unit 38, and the quick positioning unit 38 is mechanically installed on the side bracket 3 for realizing quick pin joint fixation of the clamp. Specifically, the quick positioning unit 38 is provided with a driving cylinder, the pin in the quick positioning unit 38 is driven by the driving cylinder to realize quick telescopic movement, the pin in the quick positioning unit 38 is used for realizing the pin connection with the pin hole on the corresponding clamp, the position of the clamp can be effectively prevented from changing in the rotating process of the clamp quick-changing device, even the clamp is loosened and flies out, and the safety and the reliability of the clamp quick-changing device are improved; it should be noted that, the number of the quick positioning units 38 and the installation positions may be adjusted according to the needs of the user, and one structural form and the installation manner of the quick positioning units 38 are shown in fig. 1 and 3, including but not limited to the above structural form and the installation manner, while the number of the quick positioning units 38 and the specific installation positions may be set to one or more different according to the needs of the user, and the number of the quick positioning units 38 is not limited in the embodiment of the present utility model.
The first clamping unit 32, the second clamping unit 35, the gas-electric quick-inserting unit 34 and the quick positioning unit 38 in the clamp quick-changing device provided by the embodiment of the utility model are respectively provided with at least one of a driving cylinder and a driving motor; preferably, all or part of the first clamping unit 32, the second clamping unit 35, the gas-electric quick inserting unit 34 and the quick positioning unit 38 adopt a driving mode of a driving cylinder, and mainly utilize the characteristics of quick response and good economy of the driving cylinder; of course, all or part of the units may be motor-driven, so long as the corresponding actions of the units can be realized.
In the fixture quick-change device provided by the embodiment of the utility model, in order to improve the universality and the intelligent degree, the side bracket 3 is further provided with the identification unit 33, and the identification unit 33 is mechanically connected with the side bracket 3 for realizing the identification of the type of the fixture; different signals or signal combinations are fed back through the difference of one or more sensors arranged on the identification unit 33 and the contact positions of the clamps so as to identify different clamp types or different vehicle types, and misoperation of the intelligent robot is avoided, so that the safety is good and the intelligent degree is high.
Further, the quick clamp replacing device provided by the embodiment of the utility model further comprises: at least one partition board 4, the partition board 4 is mechanically connected with the main support 2 or the side support 3 to realize the isolation of a plurality of clamp stations, so that the influence of adjacent clamp stations is avoided, for example, the influence of welding slag splashing on the adjacent stations during welding can be reduced by using the partition board 4, and pollution is avoided; preferably, the number of the spacers 4 is set to be compatible with the number of jigs.
In the fixture quick-changing device provided by the embodiment of the utility model, optionally, the fixture quick-changing device further includes: the counterweight component 6 is mechanically connected with the side bracket 3 to realize counterweight of the clamp quick-change device, when the clamp quick-change device is unbalanced in stress due to use of the clamp, the counterweight component 6 can be adopted to counterweight, so that the clamp quick-change device is prevented from being severely unbalanced in stress, abrasion caused by eccentricity in rotation of the clamp quick-change device is reduced, and the service life of the clamp quick-change device is prolonged. In fig. 5, a construction of the counterweight assembly 6 is shown, the counterweight assembly 6 being arranged at a station opposite to a fixture; it should be noted that the counterweight assembly 6 belongs to an alternative installation configuration, when the number of the clamps used is an even number, the counterweight assembly 6 can be replaced by a clamp correspondingly, and the weight of the clamp is utilized to keep the stress of the clamp quick-change device relatively balanced.
Compared with the prior art, the clamp quick-change device provided by the utility model has reasonable design, the main support 2 and the side supports 3 are driven by the turntable 1 to rotate, so that the clamp in the production line is quickly switched, the clamp is quickly fixed by the clamping units, the safety is good, the response is quick, the quick assembly and disassembly of the clamp are convenient through the guide wheel assembly 36 and the support wheel assembly 37, and the time and the labor are saved; the identification unit 33 is utilized to automatically identify various clamp types, so that the degree of intellectualization is improved; the fixture quick-change device provided by the utility model has the advantages of good safety and high working efficiency, saves manpower and material resources, and is suitable for automatic and intelligent mass production.
The following points need to be described:
(1) Unless otherwise defined, like reference numerals refer to like meanings in the embodiments of the utility model and the figures.
(2) The drawings of the embodiments of the present utility model relate only to the structures related to the embodiments of the present utility model, and other structures may refer to the general designs.
(3) In the drawings for describing embodiments of the present utility model, some of the structures in the drawings may be exaggerated or reduced for clarity, i.e., the drawings are not drawn to actual scale.
(4) The embodiments of the utility model and the features of the embodiments can be combined with each other to give new embodiments without conflict.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. A fixture quick change device for realizing the position quick switch to a plurality of fixtures, characterized in that includes: the device comprises a turntable (1), a main support (2) and at least one side support (3), wherein the main support (2) is mechanically connected with the turntable (1), a plurality of side supports (3) are uniformly distributed around the main support (2) and are mechanically connected with the main support (2), the side supports (3) are used for installing a fixing clamp, and the main support (2) can drive a plurality of side supports (3) to rotate along with the turntable (1) so as to realize position transformation of the side supports (3); the side bracket (3) is provided with at least one locating pin assembly (31), at least one first clamping unit (32) and at least one second clamping unit (35); the locating pin assembly (31) is mechanically connected with the side support (3) for achieving clamp locating, and the first clamping unit (32) and the second clamping unit (35) are respectively mechanically connected with the side support (3) and can perform opening and closing actions for achieving loading and unloading of the clamp and clamping fixation.
2. The fixture quick-change device according to claim 1, wherein the side bracket (3) is further provided with an electro-pneumatic quick-insertion unit (34), and the electro-pneumatic quick-insertion unit (34) is mechanically fixed on the side bracket (3) for realizing quick connection with an air circuit and a circuit of the fixture.
3. The quick clamp changing device according to claim 2, wherein the side bracket (3) is further provided with a guide wheel assembly (36) and a supporting wheel assembly (37), and the guide wheel assembly (36) and the supporting wheel assembly (37) are mechanically arranged on at least one of two sides of the bottom of the side bracket (3) and used for realizing the supporting and guiding functions of the clamp and facilitating the work station of the clamp to enter and exit.
4. A clamp quick change device according to any one of claims 2-3, characterized in that the side bracket (3) is further provided with at least one quick positioning unit (38), said quick positioning unit (38) being mechanically mounted on the side bracket (3) for achieving a quick pin-connection fixation of the clamp.
5. The clamp quick-change device according to claim 4, wherein the first clamping unit (32), the second clamping unit (35), the gas-electric quick-insertion unit (34), and the quick-positioning unit (38) are provided with at least one of a driving cylinder and a driving motor.
6. The quick clamp changing device according to claim 5, characterized in that the side bracket (3) is further provided with an identification unit (33), the identification unit (33) being mechanically connected with the side bracket (3) for realizing identification of clamp types.
7. The clamp quick change device of claim 6, further comprising: at least one partition plate (4), wherein the partition plate (4) is mechanically connected with the main support (2) or the side support (3) for isolating a plurality of clamp stations.
8. The clamp quick change device of claim 7, further comprising: and the counterweight component (6) is mechanically connected with the side bracket (3) and is used for realizing the counterweight of the clamp quick-change device.
9. Clamp quick change device according to claim 1, characterized in that the turntable (1) comprises: the turntable comprises a base (11), a motor (12) and a transmission mechanism (13), wherein the motor (12) is fixed on the base (11) and drives the turntable (1) to rotate through the transmission mechanism (13).
CN202321959442.XU 2023-07-25 2023-07-25 Quick clamp replacing device Active CN220560781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321959442.XU CN220560781U (en) 2023-07-25 2023-07-25 Quick clamp replacing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321959442.XU CN220560781U (en) 2023-07-25 2023-07-25 Quick clamp replacing device

Publications (1)

Publication Number Publication Date
CN220560781U true CN220560781U (en) 2024-03-08

Family

ID=90089023

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321959442.XU Active CN220560781U (en) 2023-07-25 2023-07-25 Quick clamp replacing device

Country Status (1)

Country Link
CN (1) CN220560781U (en)

Similar Documents

Publication Publication Date Title
CN108176940B (en) Windmill flexible positioning device for white body welding production line
CN205183444U (en) Online flexible robot of side wall wheel casing trims system
CN220560781U (en) Quick clamp replacing device
CN110681993A (en) Intelligent flexible laser welding station
CN207824316U (en) Luggage compartment partition board weld system for assembly
CN213531557U (en) Automatic disassembling and assembling equipment for relay housing
CN113581857A (en) Be used for a rear tail plate of multi-vehicle type to go up a revolving stage pile up neatly
CN210048108U (en) Automatic side leakage machine loading attachment of car pipeline long tube
CN207508634U (en) A kind of floating press-in jig mechanism of secondary press-in
CN214212661U (en) Multi-station welding workbench and production line
CN112917075A (en) Positioning pin switching mechanism
CN221174704U (en) Test fixture suitable for electronic panel
CN114050303B (en) Tab folding mechanism of adapter laser welding machine and battery cell processing method
CN217727865U (en) Anchor clamps auto-parts production facility and anchor clamps auto-parts production equipment
CN213855417U (en) Automatic glue filling device for assembling battery body and upper cover
CN216512565U (en) Rotary upper support for tower crane
CN216576769U (en) Multi-station door closer machining clamp
CN110271028B (en) Flexible welding robot oil tank chassis tool structure
CN211101444U (en) Core assembling device
CN221088046U (en) Five-axis clamp with double rotary tables
CN216990564U (en) Assembly welding tool for spare tire carriers of novel environment-friendly dry-mixed mortar series transport vehicle
CN210940519U (en) Rubber core group dress riveting mechanism
CN211387619U (en) Full-automatic part assembling machine
CN110919379B (en) Automatic machining device for intelligent notebook computer precision parts
CN212473733U (en) Automobile side door hinge positioning tool switching system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant