Adjustable clamping mechanism for automobile assembly line

Abstract

The utility model discloses an adjustable clamping mechanism for an automobile assembly line, which comprises a workbench, clamping components are symmetrically arranged on the left side and the right side of the workbench, cameras are correspondingly arranged at the top ends of the clamping components, the central axes of the clamping components coincide with the central axes of the cameras, the bottom ends of the clamping components are fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the workbench. The inner wall of the wheel cover is limited and fixed through expansion and contraction of the clamping plate in the clamping assembly, the situation that a clamping jaw is adopted for external clamping, and a camera is shielded for photographing and sampling is avoided, the clamping efficiency is improved, and the working efficiency is improved. And through the change of the expansion degree of the clamping plates, the clamping requirements of various wheel covers with different diameters are met.

Description

Technical Field

[0001] This utility model belongs to the field of clamping tooling technology, specifically relating to an adjustable clamping mechanism for automobile assembly lines. Background Technology

[0002] Wheel cover anti-missed cut inspection is a part of the automobile manufacturing and assembly process. The inspection methods are usually divided into manual visual inspection and machine vision inspection. Manual visual inspection involves inspectors directly observing the cut edges of the wheel cover with the naked eye to check for problems such as missed cuts, uneven cuts, and burrs. This method is simple and direct, but it is highly subjective and easily affected by the inspector's experience and fatigue level. It may be difficult to detect minor missed cut defects.

[0003] Machine vision inspection uses cameras, light sources, and other equipment to acquire images of wheel covers, and then analyzes the images using image processing algorithms to identify whether the cut edges of the wheel covers meet the requirements. This method has the advantages of fast detection speed, high accuracy, and strong objectivity, and can detect tiny defects that are difficult for human vision to detect.

[0004] Machine vision inspection methods typically involve using a clamping mechanism to hold and photograph wheel covers. Existing wheel cover clamping mechanisms usually employ external wall clamping technology, which applies pressure to the outer wall of the wheel cover by moving the grippers to fix the wheel cover. However, this method can cause the grippers to partially obstruct the outer wall of the wheel cover, thus affecting the results of camera sampling and analysis. Furthermore, the size of the wheel cover varies depending on the wheel hub model, so the clamping mechanism needs to be adjusted accordingly based on the changes in the wheel cover size. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an adjustable clamping mechanism for automobile assembly lines.

[0006] The technical solution adopted to solve the above technical problems is: to provide an adjustable clamping mechanism for automobile assembly lines, including a worktable, clamping components symmetrically arranged on the left and right sides of the worktable, a camera correspondingly arranged at the top of the clamping components, the central axis of the clamping components coinciding with the central axis of the camera, a support plate fixedly connected to the bottom of the clamping components, and a lifting component arranged at the bottom of the support plate, the top and bottom of the lifting component being fixedly connected to the support plate and the worktable respectively.

[0007] The above technical solution achieves the limiting and fixing of the inner wall of the wheel cover by expanding and contracting the clamping plate in the clamping assembly. This avoids the situation where external clamping jaws would obstruct the camera's sampling and photography. Furthermore, the varying degrees of expansion and contraction of the clamping plate can accommodate the clamping needs of wheel covers with different diameters.

[0008] Furthermore, a searchlight is provided on one side of the camera, and the searchlight is fixedly connected to the top of the worktable.

[0009] The above technical solution provides auxiliary illumination through the searchlight, creating a better shooting environment for camera sampling.

[0010] Furthermore, the clamping assembly includes a cylindrical shell, with clamping plates arranged in a ring-shaped array on the outer side of the cylindrical shell. The bottom end of the clamping plate is movably connected to the outer wall of the cylindrical shell via a second connecting rod. A lifting block is provided at the axial center of the top end of the cylindrical shell, and the lifting block is movably connected to the top end of the clamping plate via a first connecting rod.

[0011] Through the above technical solution, the lifting block moves up and down, causing the first connecting rod and the second connecting rod to move synchronously, thereby realizing the expansion and contraction of the clamping plate along the radial direction of the cylindrical shell. This achieves the fixation of the inner edge of the wheel cover. The clamping method of inward tension avoids any obstruction of the clamping mechanism when the camera samples and shoots the edge of the wheel cover, ensuring the accuracy of the sample images. Furthermore, by changing the magnitude of the lifting block's rise, the expansion diameter of the clamping plate can be altered, thus satisfying the fixation of wheel covers of different sizes.

[0012] Furthermore, the clamping plate is provided in three sets, and the side of the clamping plate away from the cylindrical shell is arc-shaped.

[0013] With the above technical solution, the arc-shaped outer edge of the clamping plate fits more closely to the inner wall of the wheel cover.

[0014] Furthermore, an electric telescopic rod is provided inside the cylindrical shell. The output end of the electric telescopic rod passes through the top wall of the cylindrical shell and is fixedly connected to the lifting block. The output end of the electric telescopic rod is slidably connected to the top wall of the cylindrical shell.

[0015] The above technical solution uses the extension and retraction of the telescopic rod to drive the lifting block to achieve upward and downward movement.

[0016] Furthermore, the lifting assembly includes a triangular plate, the top of which is fixedly connected to a support plate. A sliding limiting groove is provided on the bottom side wall of the triangular plate, and a movable limiting block is provided at the bottom of the sliding limiting groove. The top of the movable limiting block is slidably connected to the triangular plate, and a threaded transmission rod is threadedly connected to the bottom of the movable limiting block. A limiting rod is provided parallel to one side of the threaded transmission rod, and the limiting rod is slidably connected to the movable limiting block.

[0017] With the above technical solution, when the threaded transmission rod rotates, under the limit of the limit rod, the moving limit block begins to move linearly along the direction of the threaded transmission rod. Through the sliding connection between the top of the moving limit block and the triangular plate, when the moving limit block moves along the inclined side of the triangular plate along the sliding limit groove, it lifts the triangular plate, thereby realizing the lifting of the support plate and the clamping mechanism.

[0018] Furthermore, the central axis of the threaded transmission rod coincides with the central axis of the triangular plate, and the two ends of the limiting rod are respectively fixedly connected to a first limiting seat and a second limiting seat. A motor is fixedly connected to the top of the second limiting seat, the output end of the motor is fixedly connected to one end of the threaded transmission rod, and the other end of the threaded transmission rod is rotatably connected to the first limiting seat.

[0019] Furthermore, a first support rod is fixedly connected to the bottom wall of the support plate, and a second support rod is slidably connected to the bottom end of the first support rod. The bottom end of the second support rod is fixedly connected to the top end of the workbench.

[0020] Through the above technical solution, the rotation of the motor drives the threaded transmission rod to rotate, thereby realizing the displacement of the moving limit block. When the support plate drives the clamping assembly to rise and fall, the first support rod slides along the second support rod.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention achieves limited fixation of the inner wall of the wheel cover by expanding and contracting the clamping plate in the clamping assembly, avoiding the situation where external clamping with claws obstructs the camera's sampling. Furthermore, by varying the degree of expansion and contraction of the clamping plate, it adapts to the clamping needs of wheel covers with different diameters. A telescopic rod drives the lifting block to rise, which in turn causes the first and second connecting rods to move synchronously, thereby achieving radial expansion and contraction of the clamping plate along the cylindrical shell, thus fixing the inner edge of the wheel cover. The expansion diameter of the clamping plate can be changed by varying the degree of lifting of the lifting block, thus satisfying the fixing of wheel covers of different sizes. A lifting mechanism is provided at the bottom of the clamping mechanism to facilitate loading and unloading by operators, improving production efficiency. The lifting mechanism also drives the product to rise, allowing for better camera shooting. The rotation of the motor drives the threaded transmission rod to rotate, thereby displacing the moving limit block. Through the sliding connection between the top of the moving limit block and the triangular plate, when the moving limit block moves along the inclined side of the triangular plate along the sliding limit groove, the support plate drives the clamping mechanism to rise or fall. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a three-dimensional schematic diagram of the clamping component and the lifting component of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the clamping component of this utility model;

[0026] Figure 4 This is a side view of the lifting assembly of this utility model.

[0027] Reference numerals: 1. Workbench; 3. Clamping assembly; 301. Clamping plate; 302. First connecting rod; 303. Second connecting rod; 304. Cylindrical shell; 305. Lifting block; 306. Electric telescopic rod; 4. Lifting assembly; 401. Triangular plate; 402. Sliding limit groove; 403. First support rod; 404. Second support rod; 405. First limit seat; 406. Second limit seat; 407. Motor; 408. Moving limit block; 409. Threaded transmission rod; 410. Limiting rod; 5. Camera; 6. Searchlight source; 7. Support plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] like Figure 1 - Figure 4 As shown, an adjustable clamping mechanism for an automotive assembly line includes a worktable 1. Clamping components 3 are symmetrically arranged on the left and right sides of the worktable 1. A camera 5 is correspondingly arranged at the top of the clamping component 3. The central axis of the clamping component 3 coincides with the central axis of the camera 5. A support plate 7 is fixedly connected to the bottom of the clamping component 3. A lifting component 4 is arranged at the bottom of the support plate 7. The top and bottom of the lifting component 4 are fixedly connected to the support plate 7 and the worktable 1, respectively.

[0030] A searchlight source 6 is provided on one side of the camera 5. The searchlight source 6 is fixedly connected to the top of the worktable 1. The searchlight source 6 provides auxiliary illumination and provides a better shooting environment for the camera 5 to sample.

[0031] The clamping assembly 3 includes a cylindrical shell 304. Clamping plates 301 are arranged in a ring-shaped array on the outer side of the cylindrical shell 304. The bottom end of the clamping plate 301 is movably connected to the outer wall of the cylindrical shell 304 through a second connecting rod 303. A lifting block 305 is provided at the axial center of the top end of the cylindrical shell 304. The lifting block 305 is movably connected to the top end of the clamping plate 301 through a first connecting rod 302.

[0032] The lifting block 305 moves up and down, causing the first connecting rod 302 and the second connecting rod 303 to move synchronously, thereby expanding and contracting the clamping plate 301 radially along the cylindrical shell 304. This fixes the inner edge of the wheel cover. The clamping method of inward tension avoids any obstruction of the clamping mechanism when the camera 5 samples and shoots the edge of the wheel cover, ensuring the accuracy of the sample images. Furthermore, the expansion diameter of the clamping plate 301 is changed by the magnitude of the lifting block 305's rise, thus meeting the fixing requirements of wheel covers of different sizes.

[0033] The clamping plate 301 is provided in three sets. The side of the clamping plate 301 away from the cylindrical shell 304 is arc-shaped, and the arc-shaped outer edge of the clamping plate 301 fits more closely to the inner wall of the wheel cover.

[0034] An electric telescopic rod 306 is provided inside the cylindrical shell 304. The output end of the electric telescopic rod 306 passes through the top wall of the cylindrical shell 304 and is fixedly connected to the lifting block 305. The output end of the electric telescopic rod 306 is slidably connected to the top wall of the cylindrical shell 304. The extension and retraction of the electric telescopic rod 306 drives the lifting block 305 to achieve upward and downward movement.

[0035] The lifting assembly 4 includes a triangular plate 401. The top of the triangular plate 401 is fixedly connected to the support plate 7. A sliding limit groove 402 is provided on the bottom side wall of the triangular plate 401. A movable limit block 408 is provided at the bottom of the sliding limit groove 402. The top of the movable limit block 408 is slidably connected to the triangular plate 401. A threaded transmission rod 409 is threadedly connected to the bottom of the movable limit block 408. A limit rod 410 is provided parallel to one side of the threaded transmission rod 409. The limit rod 410 is slidably connected to the movable limit block 408.

[0036] When the threaded transmission rod 409 rotates, under the limit of the limit rod 410, the moving limit block 408 begins to move linearly along the direction of the threaded transmission rod 409. Through the sliding connection between the top of the moving limit block 408 and the triangular plate 401, when the moving limit block 408 moves along the inclined side of the triangular plate 401 along the sliding limit groove 402, it lifts the triangular plate 401, thereby realizing the lifting and lowering of the support plate 7 and the clamping assembly 3.

[0037] The central axis of the threaded transmission rod 409 coincides with the central axis of the triangular plate 401. The two ends of the limiting rod 410 are respectively fixedly connected to the first limiting seat 405 and the second limiting seat 406. The top of the second limiting seat 406 is fixedly connected to the motor 407. The output end of the motor 407 is fixedly connected to one end of the threaded transmission rod 409, and the other end of the threaded transmission rod 409 is rotatably connected to the first limiting seat 405.

[0038] A first support rod 403 is fixedly connected to the bottom wall of the support plate 7. A second support rod 404 is slidably connected to the bottom end of the first support rod 403. The bottom end of the second support rod 404 is fixedly connected to the top end of the workbench 1.

[0039] The rotation of motor 407 drives the threaded transmission rod 409 to rotate, thereby realizing the displacement of the moving limit block 408. When the support plate 7 drives the clamping assembly 3 to rise and fall, the first support rod 403 slides along the outer wall of the second support rod 404.

[0040] In use, the present invention first starts the motor 407, which drives the threaded transmission rod 409 to rotate. When the threaded transmission rod 409 rotates, under the limit of the limit rod 410, the movable limit block 408 begins to move linearly along the direction of the threaded transmission rod 409. Through the sliding connection between the top of the movable limit block 408 and the triangular plate 401, the movable limit block 408 moves along the inclined side of the triangular plate 401 along the sliding limit groove 402, thus lifting the triangular plate 401. When the lifting assembly 4 rises to the appropriate position, the wheel cover is placed on the top of the clamping plate 301. At this time, the electric telescopic rod 306 is activated, which drives the lifting block 305 to rise. The rising of the lifting block 305 drives the first connecting rod 302 and the second connecting rod 303 to move synchronously, thereby realizing the radial expansion of the clamping plate 301 along the cylindrical shell 304, thereby fixing the inner edge of the wheel cover.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. An adjustable clamping mechanism for an automotive assembly line, comprising a worktable (1), characterized in that: The workbench (1) is symmetrically provided with clamping components (3) on the left and right sides. A camera (5) is provided at the top of the clamping component (3). The central axis of the clamping component (3) coincides with the central axis of the camera (5). A support plate (7) is fixedly connected to the bottom of the clamping component (3). A lifting component (4) is provided at the bottom of the support plate (7). The top and bottom of the lifting component (4) are fixedly connected to the support plate (7) and the workbench (1) respectively.

2. The adjustable clamping mechanism for an automotive assembly line according to claim 1, characterized in that, A searchlight source (6) is provided on one side of the camera (5), and the searchlight source (6) is fixedly connected to the top of the workbench (1).

3. The adjustable clamping mechanism for an automotive assembly line according to claim 1, characterized in that, The clamping assembly (3) includes a cylindrical shell (304), and clamping plates (301) are arranged in a ring-shaped array on the outer side of the cylindrical shell (304). The bottom end of the clamping plate (301) is movably connected to the outer wall of the cylindrical shell (304) through a second connecting rod (303). A lifting block (305) is provided at the top axis of the cylindrical shell (304), and the lifting block (305) is movably connected to the top end of the clamping plate (301) through a first connecting rod (302).

4. The adjustable clamping mechanism for an automotive assembly line according to claim 3, characterized in that, The clamping plate (301) is provided in three sets, and the side of the clamping plate (301) away from the cylindrical shell (304) is arc-shaped.

5. An adjustable clamping mechanism for an automotive assembly line according to claim 3, characterized in that, An electric telescopic rod (306) is provided inside the cylindrical shell (304). The output end of the electric telescopic rod (306) passes through the top wall of the cylindrical shell (304) and is fixedly connected to the lifting block (305). The output end of the electric telescopic rod (306) is slidably connected to the top wall of the cylindrical shell (304).

6. An adjustable clamping mechanism for an automotive assembly line according to claim 1, characterized in that, The lifting assembly (4) includes a triangular plate (401), the top of which is fixedly connected to the support plate (7). A sliding limiting groove (402) is provided on the bottom side wall of the triangular plate (401). A movable limiting block (408) is provided at the bottom of the sliding limiting groove (402). The top of the movable limiting block (408) is slidably connected to the triangular plate (401). A threaded transmission rod (409) is threadedly connected to the bottom of the movable limiting block (408). A limiting rod (410) is provided parallel to one side of the threaded transmission rod (409). The limiting rod (410) is slidably connected to the movable limiting block (408).

7. An adjustable clamping mechanism for an automotive assembly line according to claim 6, characterized in that, The central axis of the threaded transmission rod (409) coincides with the central axis of the triangular plate (401). The two ends of the limiting rod (410) are respectively fixedly connected to the first limiting seat (405) and the second limiting seat (406). The top end of the second limiting seat (406) is fixedly connected to the motor (407). The output end of the motor (407) is fixedly connected to one end of the threaded transmission rod (409), and the other end of the threaded transmission rod (409) is rotatably connected to the first limiting seat (405).

8. An adjustable clamping mechanism for an automotive assembly line according to claim 7, characterized in that, The bottom wall of the support plate (7) is fixedly connected to a first support rod (403), and the bottom end of the first support rod (403) is slidably connected to a second support rod (404). The bottom end of the second support rod (404) is fixedly connected to the top end of the workbench (1).

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