Automobile chassis assembly testing fixture

Abstract

The utility model discloses an automobile chassis assembly testing fixture, which relates to the technical field of automobile detection and comprises a testing fixture structure, an adjusting structure and a supporting structure. The testing fixture structure comprises a mounting plate, a placing plate, a supporting bottom plate and guide wheels, and is used for bearing a chassis assembly to be tested and providing a basic frame. The adjusting structure is composed of an adjusting motor, a threaded rod, a transmission rod, a sliding block, a cross rod and the like, the motor drives the threaded rod to rotate and drives the threaded block to move oppositely, the transmission rod pushes the sliding block and the cross rod to unfold or contract, and electric precise height adjustment between the mounting plate and the supporting bottom plate is achieved; the supporting structure comprises a sleeve rod, a lifting rod, a positioning block, a locking block, a driving electric cylinder and the like, stable supporting is provided through clamping of the locking block and the positioning block after adjustment is completed, the locking block is unlocked through the driving electric cylinder during resetting, and automatic resetting is achieved in cooperation with reverse rotation of the adjusting structure. According to the gauge, through cooperation of the adjusting structure and the supporting structure, the gauge has the functions of precise height regulation and stable supporting.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, specifically to an automotive chassis assembly inspection tool. Background Technology

[0002] In the automotive manufacturing and repair field, the dimensional accuracy and assembly position of the automotive chassis assembly directly affect the vehicle's driving safety and stability, thus requiring precise inspection using specialized fixtures. Traditional automotive chassis fixtures typically achieve support through manual height adjustment or simple mechanical structures. However, with the advancement of automotive manufacturing technology, higher demands are placed on the fixture's height adjustment accuracy, support stability, and ease of operation.

[0003] The existing inspection fixtures have the following shortcomings: First, the manual adjustment method is easily affected by human error, making it difficult to achieve millimeter-level precise height control; second, the simple mechanical support structure is prone to height deviation due to external force or vibration during the inspection process, affecting the accuracy of the inspection results; third, the adjustment and reset operations require manual intervention, resulting in low automation and limited inspection efficiency. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes an automotive chassis assembly inspection tool to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] An automotive chassis assembly inspection fixture includes an inspection fixture structure. The inspection fixture structure includes a mounting plate, an adjustment structure connected to the bottom end of the mounting plate, and a support structure on one side of the adjustment structure. The inspection fixture structure achieves precise height adjustment and stable support functions through the adjustment structure and the support structure.

[0007] Furthermore, a placement plate is fixedly installed on the mounting plate of the fixture structure, a guide wheel is connected to the bottom end of the support base plate, and an adjustment structure is installed between the mounting plate and the support base plate.

[0008] Furthermore, the adjustment structure includes an adjustment motor, a threaded rod, a threaded block, a transmission rod, a slider, and a cross rod. The drive end of the adjustment motor is connected to the threaded rod, and the threaded block is connected to the threaded rod. The transmission rod is hinged to one side of the threaded block, and the slider is hinged to one end of the transmission rod. One side of the slider is hinged to one end of the cross rod. The threaded block is matched with a guide rod, the slider is matched with a guide rail, and the cross rod is matched with a fixed hinge seat.

[0009] Furthermore, the support structure includes a sleeve rod, a lifting rod, a positioning block, a locking block, a return spring, a docking seat, a fixing rod, and a drive electric cylinder. The lifting rod is slidably connected to the sleeve rod, and the top end of the lifting rod is fixedly connected to the bottom end of the mounting plate. The bottom end of the sleeve rod is fixedly connected to the top surface of the support base plate. Positioning blocks are fixedly arranged on one side of the lifting rod, and locking blocks are matched with the positioning blocks. A return spring is provided on the locking blocks, and one end of the return spring contacts the docking seat. A fixing plate is fixedly connected to the docking seat, and the locking block is hinged to the fixing plate. A fixing rod is fixedly connected to the fixing plate, and the drive rod of the drive electric cylinder is connected to one side of the bottom end of the fixing rod.

[0010] The beneficial effects of this utility model are as follows:

[0011] The system employs an adjustable motor-driven bidirectional threaded rod, combined with a centrally symmetrically installed crossbar structure, to meet high-precision testing requirements. The support structure utilizes a mechanical locking design with positioning and locking blocks to effectively prevent height deviation caused by external forces or vibrations after adjustment, ensuring the stability of the testing process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the main structure of an automobile chassis assembly inspection fixture according to an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the inspection fixture structure of an automobile chassis assembly inspection fixture according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the adjustment structure of an automobile chassis assembly inspection fixture according to an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the support structure of an automobile chassis assembly inspection fixture according to an embodiment of the present utility model;

[0017] Figure 5 This is a schematic diagram of a locking block for an automotive chassis assembly inspection fixture according to an embodiment of the present utility model.

[0018] In the picture:

[0019] 1. Inspection fixture structure; 101. Mounting plate; 102. Placement plate; 103. Support base plate; 104. Guide wheel; 2. Adjustment structure; 201. Adjustment motor; 202. Threaded rod; 203. Threaded block; 204. Transmission rod; 205. Sliding block; 206. Cross rod; 3. Support structure; 301. Sleeve rod; 302. Lifting rod; 303. Positioning block; 304. Locking block; 305. Return spring; 306. Connecting seat; 307. Fixing rod; 308. Drive cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-5 As shown, the automobile chassis assembly inspection fixture according to an embodiment of the present utility model includes an inspection fixture structure 1. The inspection fixture structure 1 includes a mounting plate 101. An adjustment structure 2 is connected to the bottom end of the mounting plate 101. A support structure 3 is provided on one side of the adjustment structure 2. The inspection fixture structure 1 realizes the functions of precise height adjustment and stable support by the adjustment structure 2 and the support structure 3.

[0022] A placement plate 102 is fixedly installed on the mounting plate 101 of the fixture structure 1, and a guide wheel 104 is connected to the bottom end of the support base plate 103. An adjustment structure 2 is installed between the mounting plate 101 and the support base plate 103.

[0023] The fixture structure 1 is the core load-bearing component of the automotive chassis assembly fixture. It mainly consists of a mounting plate 101, a placement plate 102, a support base plate 103, and guide wheels 104. The mounting plate 101 serves as a basic mounting platform, used to fix and connect the adjustment structure 2 and the support structure 3, providing a mounting foundation for height adjustment and support functions. The placement plate 102 is fixedly mounted on the mounting plate 101 and used to place the automotive chassis assembly to be inspected. It is the direct contact component between the fixture and the object being tested. The support base plate 103 is located at the bottom of the entire fixture and is connected to the mounting plate 101 through the adjustment structure 2, providing bottom support for the entire fixture. The guide wheels 104 are connected to the bottom of the support base plate 103 and can be rolled to enable flexible movement of the fixture, facilitating the adjustment of the fixture's position in the working environment. Through the coordinated cooperation of its components, the fixture structure 1 forms a basic framework from bearing the object being tested to supporting the overall structure, providing a physical carrier for subsequent adjustment and support functions.

[0024] The adjustment structure 2 includes an adjustment motor 201, a threaded rod 202, a threaded block 203, a transmission rod 204, a slider 205, and a cross rod 206. The drive end of the adjustment motor 201 is connected to the threaded rod 202. The threaded block 203 is driven and connected to the threaded rod 202. The transmission rod 204 is hinged to one side of the threaded block 203. The slider 205 is hinged to one end of the transmission rod 204. One end of the cross rod 206 is hinged to one side of the slider 205. The threaded block 203 is equipped with a guide rod. The slider 205 is equipped with a guide rail. The cross rod 206 is equipped with a fixed hinge seat.

[0025] The adjustment structure 2 is installed between the mounting plate 101 and the support base plate 103. It consists of an adjustment motor 201, a threaded rod 202, a threaded block 203, a transmission rod 204, a slider 205, a cross rod 206, and matching guide rods, guide rails, and fixed hinge seats. Its core function is to achieve precise electric height adjustment of the fixture structure 1. In specific operation, the adjustment motor 201 acts as a power source to drive the threaded rod 202 to rotate, which in turn drives the threaded block 203 to move linearly in opposite directions along the threaded rod 202. The threaded block 203 moves through the hinged transmission rod 204. 4. Pushing the slider 205 to slide on the guide rail, thereby driving the cross bar 206 to expand or contract around the fixed hinge seat, ultimately changing the vertical distance between the mounting plate 101 and the supporting base plate 103, thus completing the height adjustment. Since the cross bar 206 adopts a centrally symmetrical installation method, the force in each direction can be effectively balanced during the adjustment process, significantly improving the stability of the height adjustment. At the same time, by adjusting the precise drive of the motor 201, the height data can be monitored in conjunction with the laser rangefinder and linked with the controller, meeting the strict requirements of automotive chassis assembly testing for height accuracy.

[0026] The support structure 3 includes a sleeve rod 301, a lifting rod 302, a positioning block 303, a locking block 304, a return spring 305, a docking seat 306, a fixing rod 307, and a drive cylinder 308. The lifting rod 302 is slidably connected to the sleeve rod 301. The top end of the lifting rod 302 is fixedly connected to the bottom end of the mounting plate 101. The bottom end of the sleeve rod 301 is fixedly connected to the top surface of the support base plate 103. A positioning block 303 is fixedly arranged on one side of the lifting rod 302. A locking block 304 is matched with the positioning block 303. A return spring 305 is provided on the locking block 304. One end of the return spring 305 contacts the docking seat 306. A fixing plate is fixedly connected to the docking seat 306. The locking block 304 is hinged to the fixing plate. A fixing rod 307 is fixedly connected to the fixing plate. The drive rod of the drive cylinder 308 is connected to one side of the bottom end of the fixing rod 307.

[0027] The support structure 3 is located on one side of the adjustment structure 2 and consists of a sleeve rod 301, a lifting rod 302, a positioning block 303, a locking block 304, a return spring 305, a docking seat 306, a fixing rod 307, and a drive cylinder 308. Its core function is to provide stable support after the adjustment structure 2 completes the height adjustment and to cooperate with the adjustment structure 2 to achieve the reset operation. The sleeve rod 301 is fixedly connected to the top of the support base plate 103 and internally limits the sliding connection of the lifting rod 302. When the adjustment structure 2 drives the mounting plate 101 to rise or fall, the lifting rod 302 slides synchronously within the sleeve rod 301. After the height adjustment is completed, the positioning block 303 arranged on one side of the lifting rod 302 engages with the locking block 304 to form a mechanical lock, preventing the lifting rod 302 from being damaged by external force or the adjustment structure. The slight displacement of 2 causes a change in height, thus providing stable support for fixture structure 1. When reset is required, the drive rod of the drive cylinder 308 pushes the fixed rod 307 backward, and the fixed rod 307 drives the locking block 304 backward, causing the locking block 304 to disengage from the positioning block 303, and the lifting rod 302 loses its lifting force. At this time, the adjustment motor 201 of the adjustment structure 2 reverses, driving the threaded rod 202 to rotate in the opposite direction, the threaded block 203 moves in opposite directions, and the cross rod 206 retracts, finally realizing the reset of the mounting plate 101 and the support base plate 103. The support structure 3, through the linkage logic of "following during adjustment - locking after adjustment - unlocking during reset", together with the adjustment structure 2, realizes the integrated function of "precision-stability-automation" of fixture height adjustment.

[0028] In summary, by utilizing the above-mentioned technical solution of this utility model, through the cooperation of the adjustment structure 2 and the support structure 3, the height of the inspection fixture structure 1 can be precisely controlled while providing stable support. The adjustment structure 2 provided between the mounting plate 101 and the support base plate 103 drives the bidirectional symmetrically installed threaded rod 202 to rotate through the adjustment motor 201. This causes the threaded rod 202 to drive two threaded blocks 203 to move in opposite directions, which in turn drives the slider 205 connected to the cross rod 206 through the transmission rod 204. This allows the cross rod 206 to adjust its height between the mounting plate 101 and the support base plate 103. The cross rod 206 is centrally symmetrically installed between the mounting plate 101 and the support base plate 103, which improves the stability after height adjustment. Qualitatively, the lifting rod 302 of the supporting structure 3 rises and falls with the mounting plate 101 and the supporting base plate 103 during height adjustment. After the lifting is completed, the locking block 304 will lock the positioning block 303, providing support. At the same time, when the fixture structure 1 needs to be reset, the drive cylinder 308 drives the fixed rod 307 to move backward, thereby disengaging the locking block 304 from the positioning block 303, causing the lifting rod 302 to lose its lifting force. Then, the adjusting motor 201 of the adjusting structure 2 reverses to reset, completing the reset operation of the fixture structure 1. The height data between the mounting plate 101 and the supporting base plate 103 can be monitored by installing a laser rangefinder, and the controller of the linkage adjusting motor 201 and the drive cylinder 308 can achieve automated lifting.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automotive chassis assembly gauge, comprising: Including the gauge structure (1), the gauge structure (1) includes the mounting plate (101), the bottom end of mounting plate (101) is connected with the adjusting structure (2), one side of adjusting structure (2) is equipped with support structure (3), the gauge structure (1) realizes the precise height adjustment and stable support function of electricization through adjusting structure (2) and support structure (3).

2. An automotive chassis assembly testing fixture as claimed in claim 1, wherein, The mounting plate (101) of the gauge structure (1) is fixedly installed with a placing plate (102), the bottom end of the support base plate (103) is connected with a guide wheel (104), and the adjusting structure (2) is installed between the mounting plate (101) and the support base plate (103).

3. An automotive chassis assembly testing fixture as claimed in claim 2, wherein, The adjusting structure (2) includes an adjusting motor (201), a threaded rod (202), a threaded block (203), a transmission rod (204), a sliding block (205) and a cross rod (206), the drive end of the adjusting motor (201) is connected with the threaded rod (202), and the threaded rod (202) is drivingly connected with the threaded block (203).

4. An automotive chassis assembly testing fixture as claimed in claim 3, wherein, One side of the threaded block (203) is hingedly connected with the transmission rod (204), one end of the transmission rod (204) is hingedly connected with the sliding block (205), and one side of the sliding block (205) is hingedly connected with one end of the cross rod (206).

5. An automotive chassis assembly testing fixture as claimed in claim 4, wherein, The threaded block (203) is matched with a guide rod, the sliding block (205) is matched with a guide rail, and the cross rod (206) is matched with a fixed hinge seat.

6. An automotive chassis assembly tester as claimed in claim 5 wherein, The support structure (3) includes a sleeve rod (301), a lifting rod (302), a positioning block (303), a locking block (304), a return spring (305), a butt joint seat (306), a fixed rod (307) and a drive electric cylinder (308), the lifting rod (302) is limitingly and slidably connected in the sleeve rod (301), and the top end of the lifting rod (302) is fixedly connected with the bottom end of the mounting plate (101).

7. An automotive chassis assembly tester as claimed in claim 6 wherein, The bottom end of the sleeve rod (301) is fixedly connected to the top surface of the support base plate (103), the one side of the lifting rod (302) is fixedly arranged with the positioning block (303), the positioning block (303) is matched with the locking block (304), the locking block (304) is provided with the return spring (305), and one end of the return spring (305) is in contact with the butt joint seat (306).

8. An automotive chassis assembly tester as claimed in claim 7, wherein, The butt joint seat (306) is fixedly connected with a fixed plate, the locking block (304) is hingedly connected to the fixed plate, the fixed plate is fixedly connected with the fixed rod (307), and the bottom end of the fixed rod (307) is connected with the drive rod of the drive electric cylinder (308).

Images