Reversible locking device for automobile checking fixture
The locking device, which combines a drive motor and a ratchet assembly, solves the problem of the automotive inspection fixture being pressed down by the worktable during the flipping process, thus achieving the stability and controllability of the fixture and improving the convenience of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-04-07
AI Technical Summary
The existing locking device for automotive inspection fixtures is prone to causing the worktable to press down on the automotive inspection fixture when it is flipped simultaneously with the worktable, resulting in difficulty in operation.
A drive motor is used to drive the positioning and rotation mechanisms. Through the cooperation of ratchet groups and support damping, the clamping distance and workpiece rotation are stably adjusted to prevent overturning.
This achieves stability and controllability of the fixture when clamping workpieces, avoids the phenomenon of the worktable pressing on the automotive inspection fixture, and improves the convenience and stability of operation.
Smart Images

Figure CN224088994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts clamping technology, specifically a locking device for a flip-up automotive inspection tool. Background Technology
[0002] Automotive inspection fixtures are highly efficient quality control tools used to inspect the dimensions of complex-shaped parts, such as hole positions, outer perimeter shapes, step differences, and infeed amounts. They play a crucial role in automotive development and production, ensuring that the quality and dimensions of parts meet design requirements. During the use of automotive inspection fixtures, a part clamping device is needed to lock and position the parts, preventing loosening during inspection. However, existing locking devices for automotive inspection fixtures have some shortcomings, such as:
[0003] Application No.: CN202221106605.5 discloses a flip-up automotive fixture locking device. This device allows the worktable to be flipped without angle restrictions, making it very convenient to use. It avoids the limitation of the flipping angle caused by the electric telescopic rod in the prior art. However, in actual use, the automotive fixture is often flipped at the same time as the worktable, which may cause the worktable to press down on the automotive fixture. This makes it easy for the worktable to press down on the automotive fixture when the device is used in conjunction with the automotive fixture, making it difficult to operate.
[0004] Therefore, we propose a reversible locking device for automotive inspection tools to address the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a locking device for a flip-up automotive inspection tool, in order to solve the problem mentioned in the background art that most automotive inspection tools on the market are often flipped simultaneously with the locking worktable, which may cause the worktable to press down on the automotive inspection tool. This makes it difficult to operate the device when it is used with the automotive inspection tool.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a locking device for a flip-up automotive inspection tool, comprising a device body, a first clamp and a second clamp disposed on the top of the device body, a device shell disposed at the bottom of the device body, and a positioning mechanism disposed inside the device shell, the top of the positioning mechanism being connected to the first clamp, and a rotating mechanism disposed inside the device shell, the top of the rotating mechanism being connected to the second clamp.
[0007] The device housing contains a drive motor, and the right end of the drive motor is connected to the positioning mechanism and the rotating mechanism. The drive motor can drive the positioning mechanism or the rotating mechanism to run.
[0008] By driving the motor to rotate in the forward direction, the motor drives the positioning mechanism to operate, which in turn adjusts the distance between the first and second clamps, making the clamps more stable when holding the workpiece. Then, the drive motor rotates in the reverse direction, driving the rotating mechanism to operate, which in turn drives the second clamp to rotate, thereby causing the second clamp to rotate the workpiece and the first clamp. This prevents the car inspection fixture on the top of the device from flipping over, allowing the car inspection fixture to better inspect the flipped workpiece.
[0009] As a preferred technical solution of this utility model, a first sprocket is provided at the right end of the drive motor, and a first chain is engaged on the outer side of the first sprocket, and a second sprocket is engaged at the bottom of the first chain. Both the first sprocket and the second sprocket are provided with ratchet groups at their right ends.
[0010] The above technical solution enables the drive motor to be more stable when connected to the positioning mechanism and the rotating mechanism, thereby increasing the stability of the equipment during operation.
[0011] As a preferred technical solution of this utility model, the second sprocket is rotatably connected to the inside of the device housing, and the ratchet group includes a first ratchet, and the left end of the first ratchet is engaged with a second ratchet. The left end of the second ratchet is connected to a spring shaft, and the nylon orientation of the ratchet group at the left end of the first sprocket is opposite to the ratchet orientation of the ratchet group at the left end of the second sprocket.
[0012] The above technical solution enables the drive motor to operate more stably during the operation of the positioning and rotating mechanisms, thereby increasing the controllability of the equipment during operation.
[0013] As a preferred technical solution of this utility model, the left end of the first sprocket is connected to the positioning mechanism through a ratchet assembly, and the positioning mechanism includes a reciprocating threaded shaft, and a threaded sleeve is provided on the outside of the reciprocating threaded shaft. The top of the threaded sleeve is provided with a first fixed seat, and the left end of the top of the first fixed seat is provided with a support damping, and the left end of the support damping is provided with a first rotating seat. The left end of the first rotating seat is fixedly connected to the first clamp.
[0014] By adopting the above technical solution, when the distance between the first clamp and the second clamp is less than the length of the workpiece, the support damping can be contracted to increase the distance between the first clamp and the second clamp, thereby better clamping the workpiece.
[0015] As a preferred technical solution of this utility model, the bottom of the first fixed seat is slidably connected to the top of the device body, and the second sprocket is connected to the rotating mechanism through a ratchet assembly. The rotating mechanism includes a drive shaft, the left end of which is connected to a third sprocket, and the outer side of the third sprocket is engaged with a second chain. The top of the second chain is engaged with a fourth sprocket. The right end of the fourth sprocket is provided with a rotating shaft, and the outer side of the rotating shaft is slidably connected to a second fixed seat. The right end of the rotating shaft is rotatably connected to a second rotating seat, and the right end of the second rotating seat is fixedly connected to a second clamp.
[0016] The above technical solution makes it easier for the second clamp to rotate the workpiece, thereby increasing the controllability of the equipment during operation.
[0017] As a preferred technical solution of this utility model, the bottom of the second fixed seat is fixedly connected to the main body of the device, and the outer side of the drive shaft is slidably connected to the threaded sleeve.
[0018] The above technical solution can limit the threaded sleeve when the drive shaft moves, thereby preventing the threaded sleeve from shifting.
[0019] As a preferred technical solution of this utility model, the bottom of the device body is fixedly connected to the device shell, and the bottom of the device body is provided with four sets of fixing feet.
[0020] The above technical solution enables the device to operate more stably, thereby increasing the stability of the device during operation.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: by driving the motor to rotate in the forward direction, the motor drives the positioning mechanism to operate, thereby adjusting the distance between the first clamp and the second clamp, making the clamp more stable when holding the workpiece. Then, the drive motor rotates in the reverse direction to drive the rotating mechanism to operate, which in turn drives the second clamp to rotate, thereby causing the second clamp to rotate the workpiece and the first clamp, thus avoiding the situation where the car inspection fixture on the top of the device body flips over, and enabling the car inspection fixture to better inspect the flipped workpiece.
[0022] Furthermore, the ratchet assembly enables the drive motor to operate more stably during the control of the positioning and rotation mechanisms, thereby increasing the controllability of the equipment during operation.
[0023] Furthermore, by setting the support damping, when the distance between the first clamp and the second clamp is less than the length of the workpiece, the support damping can be contracted, thereby increasing the distance between the first clamp and the second clamp, thus better clamping the workpiece. Attached Figure Description
[0024] Figure 1 This is a front view elevation diagram of the present utility model;
[0025] Figure 2 This is a three-dimensional structural schematic diagram of the front cross-section of this utility model;
[0026] Figure 3 This is a three-dimensional structural diagram of the drive motor of this utility model;
[0027] Figure 4 For the present utility model Figure 3 A magnified structural diagram at point A;
[0028] Figure 5 This is a three-dimensional structural diagram of the parts of the positioning mechanism of this utility model;
[0029] Figure 6 This is a three-dimensional structural diagram of the rotating mechanism of this utility model.
[0030] In the diagram: 1. Main body of the device; 2. Fixed foot; 3. Device shell; 4. Drive motor; 5. First sprocket; 6. First chain; 7. Second sprocket; 8. First ratchet; 9. Second ratchet; 10. Spring shaft; 11. Reciprocating threaded shaft; 12. Threaded sleeve; 13. First fixed seat; 14. Support damping; 15. First rotating seat; 16. First clamp; 17. Drive shaft; 18. Third sprocket; 19. Second chain; 20. Fourth sprocket; 21. Second fixed seat; 22. Rotating shaft; 23. Second rotating seat; 24. Second clamp. Detailed Implementation
[0031] The technical solutions 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0032] To address the problem in existing technologies where the worktable and the vehicle inspection fixture rotate simultaneously, resulting in the fixture being pressed against each other, the following solution is disclosed. Please refer to [link / reference]. Figures 1-6 This utility model provides a technical solution: a flip-up locking device for automotive inspection tools, including a device body 1, a first clamp 16 and a second clamp 24 disposed on the top of the device body 1, a device shell 3 disposed at the bottom of the device body 1, and a positioning mechanism disposed inside the device shell 3, and the top of the positioning mechanism is connected to the first clamp 16. A rotating mechanism is disposed inside the device shell 3, and the top of the rotating mechanism is connected to the second clamp 24.
[0033] The device housing 3 is equipped with a drive motor 4, and the right end of the drive motor 4 is connected to the positioning mechanism and the rotating mechanism. The drive motor 4 can drive the positioning mechanism or the rotating mechanism to run.
[0034] The drive motor 4 has a first sprocket 5 on its right end, and a first chain 6 is engaged on the outside of the first sprocket 5. A second sprocket 7 is engaged at the bottom of the first chain 6. Both the first sprocket 5 and the second sprocket 7 have ratchet groups on their right ends.
[0035] The second sprocket 7 is rotatably connected to the inside of the device housing 3, and the ratchet group includes the first ratchet 8, and the left end of the first ratchet 8 is engaged with the second ratchet 9. The left end of the second ratchet 9 is connected to the spring shaft 10, and the nylon orientation of the ratchet group at the left end of the first sprocket 5 is opposite to the ratchet orientation of the ratchet group at the left end of the second sprocket 7.
[0036] The left end of the first sprocket 5 is connected to the positioning mechanism via a ratchet assembly. The positioning mechanism includes a reciprocating threaded shaft 11, and a threaded sleeve 12 is provided on the outside of the reciprocating threaded shaft 11. A first fixed seat 13 is provided on the top of the threaded sleeve 12, and a support damping 14 is provided on the left end of the top of the first fixed seat 13. A first rotating seat 15 is provided on the left end of the support damping 14. The left end of the first rotating seat 15 is fixedly connected to the first clamp 16.
[0037] The bottom of the first fixed seat 13 is slidably connected to the top of the device body 1, and the second sprocket 7 is connected to the rotating mechanism through a ratchet assembly. The rotating mechanism includes a drive shaft 17, the left end of which is connected to a third sprocket 18, and the outer side of the third sprocket 18 is engaged with a second chain 19. The top of the second chain 19 is engaged with a fourth sprocket 20. The right end of the fourth sprocket 20 is provided with a rotating shaft 22, and the outer side of the rotating shaft 22 is slidably connected to a second fixed seat 21. The right end of the rotating shaft 22 is rotatably connected to a second rotating seat 23, and the right end of the second rotating seat 23 is fixedly connected to a second clamp 24.
[0038] The bottom of the second fixed seat 21 is fixedly connected to the device body 1, and the outer side of the drive shaft 17 is slidably connected to the threaded sleeve 12; the bottom of the device body 1 is fixedly connected to the device shell 3, and the bottom of the device body 1 is provided with four sets of fixed feet 2.
[0039] Working principle: When using the locking device for the flip-over automotive fixture, first connect the power supply to the grid, and simultaneously engage the workpiece with the first clamp 16 to fix the automotive fixture on the top of the main body 1. Then, rotate the drive motor 4 in the forward direction, which drives the positioning mechanism to move the first clamp 16 to the designated position, thereby adjusting the distance between the first clamp 16 and the second clamp 24, thus fixing the left and right sides of the workpiece with the first clamp 16 and the second clamp 24. Then, rotate the drive motor 4 in the reverse direction, which drives the rotating mechanism to rotate the second clamp 24, thereby rotating the workpiece and the first clamp 16.
[0040] When the drive motor 4 rotates in the forward direction, the ratchet assembly at the left end of the first sprocket 5 will engage, that is, the first ratchet 8 and the second ratchet 9 will engage. The second ratchet 9 will drive the spring shaft 10 to rotate. Since the ratchet assembly at the left end of the first sprocket 5 and the ratchet assembly at the left end of the second sprocket 7 face opposite directions, the ratchet assembly at the left end of the second sprocket 7 will disengage when rotating in the forward direction. That is, the first ratchet 8 and the second ratchet 9 will disengage. The second ratchet 9 will then retract under the drive of the spring shaft 10.
[0041] When the drive motor 4 rotates in the forward direction, the first sprocket 5 drives the reciprocating threaded shaft 11 to rotate, which in turn drives the threaded sleeve 12 to move. This causes the top of the threaded sleeve 12 to move the first fixed seat 13 and the first clamp 16. When the drive motor 4 rotates in the reverse direction, the second sprocket 7 drives the drive shaft 17 and the third sprocket 18 to rotate. This causes the third sprocket 18 to drive the fourth sprocket 20 and the rotating shaft 22 to rotate via the second chain 19. This causes the rotating shaft 22 to drive the second rotating seat 23 and the second clamp 24 to rotate.
[0042] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A locking device for a flip-up automotive inspection tool, comprising a device body (1), a first clamp (16) and a second clamp (24) disposed on the top of the device body (1), characterized in that, The device body (1) has a device shell (3) at the bottom, and a positioning mechanism is provided inside the device shell (3). The top of the positioning mechanism is connected to the first clamp (16). The device shell (3) has a rotating mechanism inside, and the top of the rotating mechanism is connected to the second clamp (24). The device housing (3) is equipped with a drive motor (4), and the right end of the drive motor (4) is connected to the positioning mechanism and the rotating mechanism. The drive motor (4) can drive the positioning mechanism or the rotating mechanism to run.
2. The locking device for a flip-up automotive inspection tool according to claim 1, characterized in that, The drive motor (4) has a first sprocket (5) on its right end, and a first chain (6) is engaged on the outside of the first sprocket (5), and a second sprocket (7) is engaged at the bottom of the first chain (6). Both the first sprocket (5) and the second sprocket (7) have ratchet sets on their right ends.
3. The locking device for a flip-up automotive inspection tool according to claim 2, characterized in that, The second sprocket (7) is rotatably connected to the inside of the device housing (3), and the ratchet assembly includes a first ratchet (8), and the left end of the first ratchet (8) is engaged with a second ratchet (9). The left end of the second ratchet (9) is connected to a spring shaft (10), and the nylon orientation of the ratchet assembly at the left end of the first sprocket (5) is opposite to the ratchet orientation of the ratchet assembly at the left end of the second sprocket (7).
4. The locking device for a flip-up automotive inspection tool according to claim 3, characterized in that, The left end of the first sprocket (5) is connected to the positioning mechanism via a ratchet assembly, and the positioning mechanism includes a reciprocating threaded shaft (11), and a threaded sleeve (12) is provided on the outside of the reciprocating threaded shaft (11). The top of the threaded sleeve (12) is provided with a first fixed seat (13), and the left end of the top of the first fixed seat (13) is provided with a support damper (14), and the left end of the support damper (14) is provided with a first rotating seat (15). The left end of the first rotating seat (15) is fixedly connected to the first clamp (16).
5. The locking device for a flip-up automotive inspection tool according to claim 4, characterized in that, The bottom of the first fixed seat (13) is slidably connected to the top of the device body (1), and the second sprocket (7) is connected to the rotating mechanism through a ratchet assembly. The rotating mechanism includes a drive shaft (17), the left end of which is connected to a third sprocket (18), and the outer side of the third sprocket (18) is engaged with a second chain (19), and the top of the second chain (19) is engaged with a fourth sprocket (20). The right end of the fourth sprocket (20) is provided with a rotating shaft (22), and the outer side of the rotating shaft (22) is slidably connected to a second fixed seat (21), and the right end of the rotating shaft (22) is rotatably connected to a second rotating seat (23). The right end of the second rotating seat (23) is fixedly connected to a second clamp (24).
6. The locking device for a flip-up automotive inspection tool according to claim 5, characterized in that, The bottom of the second fixed seat (21) is fixedly connected to the main body (1) of the device, and the outer side of the drive shaft (17) is slidably connected to the threaded sleeve (12).
7. The locking device for a flip-up automotive inspection tool according to claim 6, characterized in that, The bottom of the device body (1) is fixedly connected to the device shell (3), and the bottom of the device body (1) is provided with four sets of fixing feet (2).
Citation Information
Patent Citations
Reversible locking device for automobile checking fixture
CN217384040U