Adjustable testing fixture for automobile parts
By designing a combined structure of electric telescopic rod and helical gear drive, the problem of unstable limit positioning of wheel hub during the inspection process was solved, and stable limit positioning and accurate inspection of wheel hub were achieved.
Patent Information
- Application Number
- CN202520359689.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-04
AI Technical Summary
When using existing automotive parts inspection fixtures to inspect the inner diameter of wheel hubs, the wheel hubs tend to slip during rotation, leading to unstable positioning and affecting inspection accuracy.
An adjustable inspection tool for automotive parts was designed, which adopts a combination structure of electric telescopic rod, threaded rod, helical gear and motor drive. The active bevel gear drives the helical gear to rotate, so that the movable block can move in the movable groove, increasing the friction between the top block and the inner wall of the wheel hub, and the position of the wheel hub is stabilized by limit pin and slide rail structure.
This effectively prevents the wheel hub from slipping during the inspection process, ensures stable positioning of the wheel hub during rotation, and improves inspection accuracy and efficiency.
Smart Images

Figure CN223925652U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of spare part testing fixture, specifically to an adjustable testing fixture for automobile spare parts. BACKGROUND
[0002] The testing fixture is a simple tool used by industrial production enterprises to control various sizes of products, improve production efficiency and control quality, and is suitable for mass-produced products such as automobile spare parts to replace professional measuring tools such as smooth plug gauges, threaded plug gauges, and outside diameter calipers.
[0003] According to a kind of automobile spare part testing fixture (announcement number: CN216745803U) shown, the above application is provided with the effect of preventing the supporting column from being separated from the second connecting block by the setting of limiting circular table and conical groove, and by the cooperation of the first connecting column, limiting square plate and second connecting block, four detection columns can form a hole diameter range during use, and four detection columns can be moved, so as to change the size of the hole diameter range formed by four detection columns, and further play the role of detecting different through-hole sizes on automobile spare parts.
[0004] However, the above-mentioned device needs to measure the inner diameter of the wheel hub and needs to process the wheel hub concentrically when the device limits and detects the wheel hub, and the first connecting column will slide at the junction with the inner wall of the wheel hub during rotation of the wheel hub, which makes it difficult to detect the wheel hub. In view of this, we propose an adjustable testing fixture for automobile spare parts. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide an adjustable testing fixture for automobile spare parts to solve the problems raised in the background art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an adjustable testing fixture for automobile spare parts, comprising a rotating seat, an electric telescopic rod is rotatably connected to the upper surface of the rotating seat, an installation assembly is arranged on the upper surface of the electric telescopic rod, and the installation assembly comprises:
[0007] An installation part is fixedly connected to the end of the electric telescopic rod, an active slot is formed in the upper surface of the installation part, and a placing groove is formed in the interior of the installation part.
[0008] A threaded rod is rotatably connected to the side of the inner wall of the active slot, a bevel gear is fixedly connected to the end of the threaded rod, an active block is threadedly connected to the outer surface of the threaded rod, and an active rod is fixedly connected to the side of the active block.
[0009] The top block is fixedly connected at the end of the movable rod, an installation groove is formed in the outer surface of the top block, a small spring is fixedly connected to the inner wall side of the installation groove, and an installation block is fixedly connected to the end of the small spring.
[0010] A motor is fixedly connected to the upper surface of the installation piece, and a driving bevel gear is fixedly connected to the output end of the motor.
[0011] Preferably, the driving bevel gear is arranged at the center of the inner wall of the placement groove, and the driving bevel gear is engaged with the helical gear, so that the helical gear is driven to rotate when the driving bevel gear rotates.
[0012] Preferably, the installation piece is arranged in a cross shape, the upper surface of the installation piece is provided with a scale, and the center of the installation piece corresponds to the center of the electric telescopic rod, so that the work staff can better detect the wheel hub by using the detection device when the installation piece rotates.
[0013] Preferably, the side of the top block is arranged in an arc shape, the installation block is arranged in the installation groove, and the outer surface of the installation block is provided with a semicircular protruding strip, so that the friction between the installation block and the wheel hub is increased.
[0014] Preferably, the bottom of the installation piece is provided with an auxiliary assembly, the auxiliary assembly comprises a sliding rail, the sliding rail is fixedly connected to the bottom of the installation piece, a limiting pin is arranged at the side of the sliding rail, a sliding piece is slidably connected to the inside of the sliding rail, and a limiting hole is formed in the side of the sliding piece.
[0015] Preferably, the position of the limiting pin corresponds to the position of the limiting hole, and the end of the limiting pin penetrates through the sliding rail to the inside of the limiting hole.
[0016] Preferably, the sliding piece is arranged in an L shape, and the side of the vertical part of the sliding piece is arranged in an arc shape.
[0017] Compared with the prior art, the automobile part adjustable detection device has the following beneficial effects:
[0018] 1. The automobile part adjustable testing fixture, in order to avoid the equipment to detect the wheel hub from sliding, the wheel hub is placed on the outer surface of the mounting piece, and the motor is started to rotate the driving bevel gear, thereby driving the threaded rod to rotate, so that the movable block moves in the movable groove, the movable rod extends out of the movable groove, and the outer surface of the top block is in contact with the inner wall of the wheel hub, so that the wheel hub can be well limited, and when the rotating seat rotates the electric telescopic rod to rotate the mounting piece, the elastic force of the small spring pushes the mounting block out of the mounting groove, and the outer surface of the mounting block is in contact with the inner wall of the wheel hub, and the semicircular protrusions provided on the outer surface of the mounting block can increase the friction between the top block and the wheel hub, so that the wheel hub does not loosen during rotation.
[0019] 2. The automobile part adjustable testing fixture, in order to make the wheel hub can be faster limit, when the wheel hub is placed, the limiting pin is taken off, the sliding piece is pulled, the sliding piece moves in the sliding rail, the wheel hub is placed, the bottom of the wheel hub is in contact with the upper surface of the sliding piece, and after the outer surface of the top block is in contact with the inner wall of the wheel hub, the limiting pin is inserted into the limiting hole through the side of the sliding rail. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a three-dimensional left view structure schematic diagram of the utility model;
[0021] Figure 2 It is an explosion section structure schematic diagram of the utility model;
[0022] Figure 3 It is an activity piece structure schematic diagram of the utility model;
[0023] Figure 4 It is an A area enlarged structure schematic diagram of the utility model.
[0024] In the drawing: 1, rotating seat; 2, electric telescopic rod; 3, mounting assembly; 301, mounting piece; 302, placing groove; 303, movable groove; 304, movable block; 305, movable rod; 306, top block; 307, motor; 308, driving bevel gear; 309, threaded rod; 310, helical gear; 311, mounting groove; 312, small spring; 313, mounting block; 4, auxiliary assembly; 401, sliding rail; 402, limiting pin; 403, sliding piece; 404, limiting hole. DETAILED DESCRIPTION
[0025] As Figures 1-4The utility model provides a kind of technical scheme shown in the utility model provides a kind of adjustable gauge for automobile parts, including rotating seat 1, rotating seat 1 upper surface rotationally connected with electric telescopic rod 2, electric telescopic rod 2 upper surface is provided with mounting assembly 3, and mounting assembly 3 includes mounting piece 301, movable slot 303, placement slot 302, threaded rod 309, bevel gear 310, movable block 304, movable rod 305, top block 306, installation slot 311, small spring 312, mounting block 313, motor 307 and driving bevel gear 308.
[0026] In the embodiment of the utility model, mounting piece 301 is fixedly connected at the end of electric telescopic rod 2, and mounting piece 301 is provided in cross shape, the upper surface of mounting piece 301 is provided with a scale, and the center of mounting piece 301 corresponds to the center of electric telescopic rod 2, so that the staff can better use the detection device to detect the wheel hub when mounting piece 301 rotates, the upper surface of mounting piece 301 is provided with movable slot 303, and the inside of mounting piece 301 is provided with placement slot 302, threaded rod 309 is rotationally connected to the inner wall side of movable slot 303, bevel gear 310 is fixedly connected to the end of threaded rod 309, movable block 304 is screw-connected to the outer surface of threaded rod 309, movable rod 305 is fixedly connected to the side of movable block 304, top block 306 is fixedly connected to the end of movable rod 305, the side of top block 306 is provided in arc shape, installation slot 311 is formed in the outer surface of top block 306, small spring 312 is fixedly connected to the end of small spring 312, mounting block 313 is provided in the inside of installation slot 311, and semicircular protrusions are provided on the outer surface of mounting block 313, which increases the friction between mounting block 313 and the wheel hub, motor 307 is fixedly connected to the upper surface of mounting piece 301, driving bevel gear 308 is fixedly connected to the output end of motor 307, driving bevel gear 308 is provided in the inner wall center of placement slot 302, and driving bevel gear 308 is engaged with bevel gear 310, so that bevel gear 310 rotates when driving bevel gear 308 rotates.
[0027] Meanwhile, the bottom of the mounting piece 301 is provided with an auxiliary assembly 4, the auxiliary assembly 4 comprises a sliding rail 401, the sliding rail 401 is fixedly connected to the bottom of the mounting piece 301, the side of the sliding rail 401 is provided with a limiting pin 402, the position of the limiting pin 402 corresponds to the position of a limiting hole 404, the end of the limiting pin 402 penetrates the sliding rail 401 to the inside of the limiting hole 404, the inside of the sliding rail 401 is slidably connected with a sliding piece 403, the sliding piece 403 is L-shaped, the side of the vertical part of the sliding piece 403 is arc-shaped, and the side of the sliding piece 403 is provided with the limiting hole 404, so that when the wheel hub is placed, the limiting pin 402 is removed, the sliding piece 403 is pulled to move in the sliding rail 401, the wheel hub is placed, the bottom of the wheel hub is in contact with the upper surface of the sliding piece 403, and after the outer surface of the top block 306 is in contact with the inner wall of the wheel hub, the end of the limiting pin 402 penetrates the side of the sliding rail 401 into the inside of the limiting hole 404.
[0028] In the utility model, when in use, the wheel hub is placed at the outer surface of the mounting piece 301, meanwhile the motor 307 is started to make the driving bevel gear 308 rotate, further make the bevel gear 310 drive the threaded rod 309 to rotate, so that the movable block 304 moves in the movable groove 303, the movable rod 305 extends out of the movable groove 303 to make the outer surface of the top block 306 in contact with the inner wall of the wheel hub, so that the wheel hub can be well limited, and when the rotating seat 1 rotates the electric telescopic rod 2 to make the mounting piece 301 rotate, the elastic force of the small spring 312 pushes the mounting block 313 to extend out of the mounting groove 311, the outer surface of the mounting block 313 is in contact with the inner wall of the wheel hub, the semicircular convex strip arranged on the outer surface of the mounting block 313 can increase the friction between the top block 306 and the wheel hub, so that the wheel hub does not loosen when rotating.
[0029] Further, when the wheel hub is placed, the limiting pin 402 is removed, the sliding piece 403 is pulled to move in the sliding rail 401, the wheel hub is placed, the bottom of the wheel hub is in contact with the upper surface of the sliding piece 403, and after the outer surface of the top block 306 is in contact with the inner wall of the wheel hub, the end of the limiting pin 402 penetrates the side of the sliding rail 401 into the inside of the limiting hole 404.
[0030] The above is a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.
Claims
1. An adjustable inspection tool for automotive parts, comprising a rotating base (1), wherein an electric telescopic rod (2) is rotatably connected to the upper surface of the rotating base (1), characterized in that: The upper surface of the electric telescopic pole (2) is provided with an installation component (3), the installation component (3) including: Mounting component (301) is fixedly connected to the end of the electric telescopic rod (2). The upper surface of the mounting component (301) is provided with a movable groove (303), and the interior of the mounting component (301) is provided with a placement groove (302). A threaded rod (309) is rotatably connected to the inner wall side of the movable groove (303). A helical gear (310) is fixedly connected to the end of the threaded rod (309). A movable block (304) is threadedly connected to the outer surface of the threaded rod (309). A movable rod (305) is fixedly connected to the side of the movable block (304). A top block (306) is fixedly connected to the end of a movable rod (305). An installation groove (311) is provided on the outer surface of the top block (306). A small spring (312) is fixedly connected to the inner side of the installation groove (311). An installation block (313) is fixedly connected to the end of the small spring (312). The motor (307) is fixedly connected to the upper surface of the mounting component (301), and the output end of the motor (307) is fixedly connected to the drive bevel gear (308).
2. The adjustable inspection fixture for automotive parts according to claim 1, characterized in that: The active bevel gear (308) is located at the center of the inner wall of the placement groove (302), and the active bevel gear (308) meshes with the helical gear (310).
3. The adjustable inspection fixture for automotive parts according to claim 1, characterized in that: The mounting component (301) is arranged in a cross shape, and a scale is provided on the upper surface of the mounting component (301). The center of the mounting component (301) corresponds to the center of the electric telescopic rod (2).
4. The adjustable inspection fixture for automotive parts according to claim 1, characterized in that: The top block (306) has an arc-shaped side, the mounting block (313) is located inside the mounting groove (311), and the outer surface of the mounting block (313) is provided with a semi-circular protrusion.
5. The adjustable inspection tool for automotive parts according to claim 1, characterized in that: The mounting component (301) has an auxiliary component (4) at its bottom. The auxiliary component (4) includes a slide rail (401). The slide rail (401) is fixedly connected to the bottom of the mounting component (301). A limit pin (402) is provided on the side of the slide rail (401). A slide member (403) is slidably connected inside the slide rail (401). A limit hole (404) is opened on the side of the slide member (403).
6. The adjustable inspection fixture for automotive parts according to claim 5, characterized in that: The position of the limiting pin (402) corresponds to the position of the limiting hole (404), and the end of the limiting pin (402) extends through the slide rail (401) into the limiting hole (404).
7. The adjustable inspection fixture for automotive parts according to claim 5, characterized in that: The slider (403) is L-shaped, and the vertical side of the slider (403) is arc-shaped.
Citation Information
Patent Citations
Automobile part testing fixture
CN216745803U