Automobile chassis assembly testing fixture with protection structure

Abstract

The utility model discloses an automobile chassis assembly testing fixture with a protection structure, which mainly comprises a rack, a lifting mechanism, a testing fixture table and a fixing mechanism, the lifting mechanism adopts a double-group synchronous design, a driving motor drives a worm and a worm gear to transmit, and a lead screw is driven to enable the lifting platform to stably lift along a sliding column. The self-locking characteristic of the worm gear and the worm can prevent the testing fixture table from accidentally slipping off, two ends of the testing fixture table are fixedly connected with the lifting platform, the middle part is provided with a detection port, the edge is provided with a plurality of groups of fixing mechanisms, the fixing mechanisms drive the locking arms to rotate through worm and worm gear transmission, the locking port with a rubber pad is used for compressing the automobile chassis boundary beam, and the self-locking characteristic ensures the fixing reliability. The detection tool guarantees the operation safety through a dual protection mechanism, can be lifted to adjust the height during detection, facilitates the comprehensive detection of the bottom of the chassis through the detection port, and has the characteristics of high stability, wear resistance, safe operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of automotive chassis assembly inspection tools, specifically an automotive chassis assembly inspection tool with a protective structure. Background Technology

[0002] As a crucial component of a vehicle, the manufacturing precision and assembly quality of the chassis assembly directly impact the overall safety and reliability of the vehicle. During automobile production, the chassis assembly is typically inspected using jigs to ensure that its dimensional accuracy and assembly positions meet design requirements.

[0003] The existing patent announcement number CN 221464585 U discloses an automotive chassis assembly inspection fixture, which achieves automatic lifting and lowering of the fixture support plate through a combination of motor, worm, worm wheel, gear and rack column. It also utilizes the self-locking stability characteristics of the worm and worm wheel to ensure that the support plate will not fall spontaneously during the lifting and lowering process, thereby improving the practicality and stability of the inspection fixture. However, in the above structure, the inspection fixture support plate is not equipped with a locking component for the automotive chassis assembly. Therefore, during the lifting and lowering of the inspection table, the automotive chassis assembly may be at risk of displacement or slippage, resulting in insufficient safety.

[0004] Another authorized announcement number CN 222635360 U discloses an automobile chassis assembly inspection fixture, which places the chassis frame on the automobile chassis on a U-shaped block, and the frame plate on the chassis frame is clamped on the U-shaped inner cavity of the U-shaped block. Then, the rotating block is rotated. At this time, the rotating block drives the threaded short rod to move along the inner cavity of the first threaded hole. The threaded short rod drives the pressing block and the rubber pad to move towards the frame plate on the chassis frame until the automobile chassis is clamped and fixed on the U-shaped block, thus fixing the automobile chassis. However, because there is a reaction force, the clamping is easy to loosen, resulting in poor clamping effect and thus affecting safety performance.

[0005] For the reasons stated above, this application is hereby submitted. Utility Model Content

[0006] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide an automotive chassis assembly inspection tool with a protection mechanism to ensure the safety of inspection.

[0007] The technical solution adopted by this utility model to achieve the above objectives is: a car chassis assembly inspection fixture with a protective structure, including a frame, a lifting mechanism, an inspection table, and a fixing mechanism. The lifting mechanism is provided on the frame, and the lifting mechanism includes a lifting table capable of lifting and lowering. The inspection table is fixedly connected to the lifting table.

[0008] The inspection table is equipped with multiple sets of fixing mechanisms. Each fixing mechanism includes a rotating frame, a second worm, a second worm wheel, a locking arm, and an operating panel. The rotating frame is fixedly connected to the inspection table. A rotating shaft is rotatably connected to the rotating frame. The locking arm is fixedly connected to the rotating shaft. One end of the rotating shaft is fixedly connected to the second worm wheel. The second worm is rotatably connected to the rotating frame. The second worm meshes with the second worm wheel. The end of the second worm is fixedly connected to the operating panel.

[0009] In the above technical solution, the lifting mechanism further includes a drive motor, a first worm gear, a first worm wheel, a lead screw, and a sliding column. The sliding column is fixedly connected to the frame, the lifting platform is slidably connected to the sliding column, and the lead screw is threadedly connected to the lifting platform.

[0010] One end of the lead screw is fixedly connected to an input shaft, the first worm gear is fixedly connected to the input shaft, the first worm is rotatably connected to the frame, the first worm gear meshes with the first worm, the drive motor is fixedly connected to the frame, and the drive motor is poweredly connected to the first worm.

[0011] In the above technical solution, the lifting mechanism is provided in two sets, and the two sets of lifting platforms are respectively fixedly connected to both ends of the inspection table.

[0012] In the above technical solution, the worm gears in the two sets of lifting mechanisms are fixedly connected by a connecting shaft.

[0013] In the above technical solution, the inspection table has a detection port in the middle, and the locking arm cooperates with the edge of the inspection table.

[0014] In the above technical solution, the locking arm is provided with a locking port, and a rubber pad is fixedly connected inside the locking port.

[0015] The beneficial effects of this utility model are:

[0016] 1. The car chassis assembly can be placed on the inspection table. Then, by rotating the operating panel, the first worm gear drives the first worm wheel to rotate. When the first worm wheel rotates, the locking arm can rotate. The locking arm presses the side beam of the car chassis assembly onto the inspection table, thereby fixing the car chassis assembly. The self-locking effect of the worm gear and worm wheel forms a protection mechanism to avoid the reaction force causing the fixing failure.

[0017] 2. The drive motor can synchronously drive two sets of lead screws to rotate, so that the two sets of lifting platforms can drive the inspection table to rise and fall. This allows for the inspection of the bottom of the automobile assembly. Furthermore, the self-locking effect of the worm gear and worm wheel forms a protection mechanism to prevent the inspection table from slipping and affecting the safety of the inspection personnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0020] Figure 3 for Figure 2 Detailed structural diagram of part a;

[0021] Figure 4 for Figure 2 Detailed structural diagram of part b in the middle.

[0022] In the diagram: 100 Frame, 201 Drive motor, 202 First worm gear, 203 First worm wheel, 204 Lead screw, 205 Lifting platform, 206 Sliding column, 207 Input shaft, 208 Connecting shaft, 300 Inspection table, 301 Inspection port, 401 Rotating frame, 402 Second worm gear, 403 Second worm wheel, 404 Locking arm, 405 Operation panel, 406 Locking port, 407 Rotating shaft. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4A vehicle chassis assembly inspection fixture with a protective structure includes a frame 100, a lifting mechanism, an inspection table 300, and a fixing mechanism. Firstly, the frame 100 is equipped with a lifting mechanism, which includes a drive motor 201, a first worm gear 202, a first worm wheel 203, a lead screw 204, a lifting platform 205, and a sliding column 206. Specifically, the sliding column 206 is fixedly connected to the frame 100, and the lifting platform 205 is slidably connected to the sliding column 206. The lead screw 204 is threadedly connected to the lifting platform 205, and an input shaft 207 is fixedly connected to the bottom end of the lead screw 204. A first worm gear 203 is fixedly connected to the input shaft 207, and a first worm 202 is rotatably connected to the frame 100. The first worm gear 203 and the first worm 202 are meshed together. In addition, a drive motor 201 is fixedly connected to the frame 100. The drive motor 201 is poweredly connected to the first worm 202. In this way, the drive motor 201 can drive the first worm 202 to rotate, and the first worm 202 drives the first worm gear 203 to rotate, which finally realizes the rotation of the lead screw 204. When the lead screw 204 rotates, the lifting platform 205 can move up and down along the sliding column 206.

[0025] Secondly, the lifting platform 205 is fixedly connected to the inspection table 300, allowing the inspection table 300 to move synchronously up and down via the lifting platform 205. To ensure the stability of the inspection table 300's movement, two lifting mechanisms are provided, with each lifting platform 205 fixedly connected to one end of the inspection table 300. Furthermore, the worm gears in the two lifting mechanisms are fixedly connected via a connecting shaft 208. This allows the drive motor 201 to synchronously drive the two sets of first worm gears 202 to rotate, causing the first worm gears 202 to drive the corresponding first worm wheels 203 to rotate. Simultaneously, the two sets of lead screws 204 rotate synchronously, ultimately causing the two lifting platforms 205 to move the inspection table 300. The lifting mechanism utilizes the self-locking effect of the worm gears and worm wheels to form a protective mechanism, preventing the inspection table 300 from slipping and affecting the safety of the inspection personnel.

[0026] Finally, the inspection table 300 is also equipped with multiple fixing mechanisms. These mechanisms are used to fix the vehicle chassis assembly onto the inspection table 300. Specifically, the fixing mechanisms include a rotating frame 401, a second worm gear 402, a second worm wheel 403, a locking arm 404, and an operating panel 405. That is, a rotating frame 401 is fixedly connected to the side of the inspection table 300, and a rotating shaft 407 is rotatably connected to the rotating frame 401. A locking arm 404 is fixedly connected to the rotating shaft 407, and a second worm wheel 403 is fixedly connected to one end of the rotating shaft 407. A second worm gear 402 is dynamically connected, and the second worm gear 402 is meshed with a second worm wheel 403. An operating disc 405 is fixedly connected to the end of the second worm gear 402. By rotating the operating disc 405, the second worm gear 402 can be driven to rotate, which in turn drives the second worm wheel 403 to rotate, ultimately achieving the rotation of the rotating shaft 407. When the rotating shaft 407 rotates, the locking arm 404 can rotate to press down and fix the side beam of the car chassis assembly. The self-locking characteristics of the worm gear and worm wheel form a protection mechanism to prevent the reaction force from causing the fixation failure.

[0027] Furthermore, the aforementioned locking arm 404 is provided with a locking port 406, and a rubber pad is fixedly connected inside the locking port 406. The locking port 406 fits into the side beam of the vehicle to improve the fixing effect on the vehicle chassis assembly. The rubber pad can increase the friction between the locking arm 404 and the side beam, improving the fixing effect while preventing wear between the two.

[0028] Furthermore, the inspection table 300 has an inspection port 301 in the middle, and the locking arm 404 cooperates with the edge of the inspection table 300. That is, when the car chassis assembly is placed on the inspection table 300, the side beam of the car chassis assembly is located on the edge of the inspection table 300, and the side beam is pressed down and fixed by the locking arm 404. After the inspection table 300 is raised by the lifting mechanism, the inspector can inspect the bottom area of ​​the car chassis assembly through the inspection port 301.

[0029] 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.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle chassis assembly inspection fixture with a protective structure, comprising a frame (100), a lifting mechanism, an inspection table (300), and a fixing mechanism, characterized in that: The frame (100) is provided with the lifting mechanism, which includes a lifting platform (205) capable of lifting movement, and the inspection table (300) is fixedly connected to the lifting platform (205). The inspection table (300) is provided with multiple sets of fixing mechanisms. The fixing mechanism includes a rotating frame (401), a second worm (402), a second worm wheel (403), a locking arm (404), and an operating panel (405). The rotating frame (401) is fixedly connected to the inspection table (300). A rotating shaft (407) is rotatably connected to the rotating frame (401). The locking arm (404) is fixedly connected to the rotating shaft (407). The second worm wheel (403) is fixedly connected to one end of the rotating shaft (407). The second worm (402) is rotatably connected to the rotating frame (401). The second worm (402) is meshed with the second worm wheel (403). The operating panel (405) is fixedly connected to the end of the second worm (402).

2. The automotive chassis assembly testing fixture with protective structure according to claim 1, characterized in that: The lifting mechanism further includes a drive motor (201), a first worm (202), a first worm wheel (203), a lead screw (204), and a sliding column (206). The sliding column (206) is fixedly connected to the frame (100), and the lifting platform (205) is slidably connected to the sliding column (206). The lead screw (204) is threadedly connected to the lifting platform (205). One end of the lead screw (204) is fixedly connected to an input shaft (207), the first worm gear (203) is fixedly connected to the input shaft (207), the first worm (202) is rotatably connected to the frame (100), the first worm gear (203) meshes with the first worm (202), the drive motor (201) is fixedly connected to the frame (100), and the drive motor (201) is poweredly connected to the first worm (202).

3. The automotive chassis assembly testing fixture with protective structure according to claim 2, characterized in that: The lifting mechanism is provided in two sets, and the two sets of lifting platforms (205) are respectively fixedly connected to both ends of the inspection table (300).

4. The automotive chassis assembly testing fixture with protective structure according to claim 3, characterized in that: The worm gears in the two sets of lifting mechanisms are fixedly connected by a connecting shaft (208).

5. The automotive chassis assembly gauge with protective structure according to claim 1, characterized in that: The inspection table (300) has an inspection port (301) in the middle, and the locking arm (404) is engaged with the edge of the inspection table (300).

6. The automotive chassis assembly gauge with protective structure according to claim 1, characterized in that: The locking arm (404) is provided with a locking port (406), and a rubber pad is fixedly connected inside the locking port (406).

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