Automobile front wall plate welding assembly testing fixture

Abstract

The utility model belongs to automobile welding gauge equipment technical field, especially related to a kind of automobile front wallboard welding assembly gauge, including main part and the front wallboard to be detected, four slide rail fixing devices are fixedly installed on the upper wall of the main part according to four corners symmetry, the upper wall of the slide rail fixing device is fixedly connected with two symmetrical X-axis linear slide rails and the Y-axis linear guide rail that and X-axis linear guide rail are cross distribution, the X-axis linear slide rail includes first guide rail and the first slider of the first guide rail, the Y-axis linear guide rail includes second guide rail and the second slider of the second guide rail on which is sleeved.The utility model adjusts the position of detection mechanism by X-axis linear slide rail and Y-axis linear slide rail, and detects aperture automatically by detection mechanism, to reduce the operation of manual replacement different pass-stop gauge, eliminate the error caused by personnel to use visual and press mode detection, improve detection quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive welding inspection equipment, and in particular relates to an inspection tool for automotive front panel welding assembly. Background Technology

[0002] With the evolution of industrial technology, the transformation of production models, and the advancement of materials science, inspection tools have emerged as tools to ensure the interchangeability of parts. Standardized dimensions have greatly improved the efficiency of mechanical production. Furthermore, in the large-scale production of automobiles, strict requirements are placed on the consistency of parts, and the assembly accuracy of the body welding assembly directly affects the overall vehicle quality. Inspection tools are the core tools for quality control.

[0003] When inspecting the welded assembly of the front panel of an automobile, operators need to use go / no-go gauges to quickly verify whether the diameter and position of the inspected hole are qualified by visual inspection and tactile feeling. This presents the problem of having to manually change the go / no-go gauges frequently to match different hole diameters. However, during long-term manual inspection, frequent changes of go / no-go gauges will increase the operator's perception of the consistency of inspection and affect the overall vehicle assembly quality.

[0004] Therefore, we propose a welding assembly inspection tool for automotive front panel to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the background art by proposing a welding assembly inspection tool for automotive front panel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding assembly inspection fixture for automotive front panel includes a main body and a front panel to be inspected. The main body is characterized by having an X-axis linear guide rail and a Y-axis linear guide rail arranged in a cross shape with the X-axis linear guide rail. The X-axis linear guide rail includes a first guide rail and a first slider sleeved on the first guide rail. The Y-axis linear guide rail includes a second guide rail and a second slider sleeved on the second guide rail. The end of the Y-axis linear guide rail is fixed to the first slider. A support plate is fixedly installed on the upper wall of the second slider. A support column is fixedly installed on the upper surface of the support plate. A second support rod is fixedly installed on the support column. A movable positioning plate is fixedly installed at the end of the second component. A movable rod slides through the movable positioning plate. Limiting plate one and limiting plate two are fixed at the upper and lower ends of the movable rod, respectively. A buffer spring is sleeved on the upper outer wall of the movable rod. The two ends of the buffer spring are fixedly connected to the lower side wall of limiting plate one and the outer wall of the movable rod, respectively. A movable plate is fixedly installed on the outer wall of the movable rod. An adjustment mechanism for pushing the movable plate up and down is provided on the support plate. A detection mechanism is fixedly installed on the lower plate surface of limiting plate two. The detection mechanism includes a detection rod and multiple sets of thin-film pressure sensors fixed on the outer wall of the detection rod from top to bottom.

[0008] In the aforementioned automotive front panel welding assembly inspection fixture, four hydraulic telescopic pulleys and four support feet are symmetrically and fixedly installed on the lower wall surface of the main body.

[0009] In the aforementioned automotive front panel welding assembly inspection fixture, the adjustment mechanism includes a support rod fixedly mounted on a support plate. A rotary motor is fixedly connected to the upper end of the support rod, and a turntable is fixed to the drive end of the rotary motor. A lever is mounted on the outer wall of the turntable, and the end of the lever is located on the lower side of the moving plate.

[0010] In the aforementioned automotive front panel welding assembly fixture, two handles are symmetrically fixedly installed on the upper wall of the main body.

[0011] In the aforementioned automotive front panel welding assembly inspection fixture, the inspection rod is cone-shaped.

[0012] In the aforementioned automotive front panel welding assembly inspection fixture, four locating pins located at the four corners of the front panel to be inspected are installed on the upper surface of the main body.

[0013] Compared with existing technologies, the advantages of this automotive front panel welding assembly inspection fixture are:

[0014] When the welded front panel of a car needs to have its hole diameter checked, the inspection mechanism is quickly moved above the hole to be inspected via a slide rail. At the same time, the motor drives the turntable, controlling the lever on the turntable to rotate downwards and disengage from the moving plate. With the moving plate no longer supported by the lever, the conical inspection rod is inserted downwards into the hole to be inspected by gravity. The hole diameter is determined by the data transmitted back by the thin-film pressure sensor on the outer wall of the inspection rod. The downward impact of the inspection mechanism is buffered by the buffer spring sleeved on the outer wall of the moving rod. This quickly verifies whether the diameter and position of the hole to be inspected are up to standard, avoiding damage to the panel due to gravity and frequent replacement of go / no-go gauges by technicians.

[0015] Support feet are fixedly installed along the four sides of the main body and hydraulic telescopic pulleys are fixedly installed at the four corners. When testing, the pulleys are extended and retracted, and the stability of the device is improved by the four support feet. When testing is completed, the pulleys are lowered, and the handles fixedly installed on the top of the main body are used to move the device, so as to improve the applicability of the testing body in various environments.

[0016] In summary, this utility model adjusts the position of the detection mechanism by using X-axis and Y-axis linear slide rails, and automatically detects the hole diameter through the detection mechanism. This reduces the need for manual replacement of different go / no-go gauges, eliminates errors caused by visual inspection and pressing methods, and improves the detection quality. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of a welding assembly inspection fixture for automotive front wall panels proposed in this utility model;

[0018] Figure 2 This is a structural schematic diagram of a welding assembly inspection fixture for automotive front panel proposed in this utility model, viewed from a three-axis perspective.

[0019] Figure 3 for Figure 2 Enlarged view of the structure of part A in the middle.

[0020] In the diagram: 1 Main body, 2 Hydraulic telescopic pulley, 3 Support foot, 4 Handle, 5 X-axis linear slide rail, 6 First slider, 7 Second guide rail, 8 Second slider, 9 Support plate, 10 Rotary motor, 11 Turntable, 12 Lever, 13 Support column, 14 Positioning plate, 15 Moving rod, 16 Buffer spring, 17 Limiting plate one, 18 Limiting plate two, 19 Moving plate, 20 Front wall plate to be inspected, 21 Positioning pin, 22 Thin-film pressure sensor. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-3 A welding assembly inspection fixture for automotive front panel includes a main body 1 and a front panel 20 to be inspected. The main body 1 is provided with an X-axis linear guide rail 5 and a Y-axis linear guide rail arranged in a cross shape with the X-axis linear guide rail. The X-axis linear guide rail 5 includes a first guide rail and a first slider 6 sleeved on the first guide rail. The Y-axis linear guide rail includes a second guide rail 7 and a second slider 8 sleeved on the second guide rail 7. The end of the Y-axis linear guide rail is fixed to the first slider 6. A support plate 9 is fixedly installed on the upper wall of the second slider 8. When the welded automotive front panel needs to have its hole diameter inspected, the technician can quickly and accurately move the support plate 9 and the inspection mechanism set on the support plate 9 above the hole to be inspected by using the X-axis linear guide rail 5 and the Y-axis linear guide rail arranged in a cross shape with the X-axis linear guide rail on the main body 1, thereby reducing the workload of the technician.

[0023] A support column 13 is fixedly installed on the upper surface of the support plate 9. A support rod 2 is fixedly installed on the support column 13. A movable positioning plate 14 is fixedly installed at the end of the support rod 2. A movable rod 15 slides through the movable positioning plate 14. A limit plate 17 and a limit plate 2 18 are fixedly fixed at the upper and lower ends of the movable rod 15, respectively. A buffer spring 16 is sleeved on the upper outer wall of the movable rod 15. The two ends of the buffer spring 16 are fixedly connected to the lower side wall of the limit plate 17 and the outer wall of the movable rod 15, respectively. A movable plate 19 is fixedly installed on the outer wall of the movable rod 15. An adjustment mechanism for pushing the movable plate 19 up and down is provided on the support plate 9. A detection mechanism is fixedly installed on the lower surface of the limit plate 2 18. The detection mechanism includes a detection rod and multiple sets of thin-film pressure sensors 22 fixed on the outer wall of the detection rod from top to bottom. When the welded front wall panel of the automobile needs to be... When testing the aperture, the drive end of the rotating motor 10 drives the turntable 11 to rotate, controlling the lever 12 on the turntable 11 to rotate downwards and disengage from the moving plate 19. The moving plate 19 loses the support of the lever 12, and the conical detection rod inserts downwards into the hole to be tested under the action of gravity. Different apertures of the hole to be tested will contact the thin film pressure sensor 22 at different diameters of the detection rod. Then, the size of the aperture of the hole to be tested is determined by the triggering of the thin film pressure sensor 22 on the outer wall of the detection rod. This quickly verifies whether the diameter and position of the hole to be tested are qualified, avoiding the need for technicians to frequently change the go / no-go gauge, eliminating the errors caused by personnel using visual inspection and pressing methods, improving the testing quality, and the buffer spring 16 sleeved on the outer wall of the moving rod 15 buffers the downward impact of the detection mechanism, reducing the damage caused by the detection mechanism when it contacts and impacts the front wall plate.

[0024] Four hydraulic telescopic pulleys 2 and four support feet 3 are symmetrically and fixedly installed on the lower wall of the main body 1. Two handles 4 are symmetrically and fixedly installed on the upper wall of the main body 1. Support feet 3 are fixedly installed along the four sides below the main body 1, and hydraulic telescopic pulleys 2 are fixedly installed at the four corners. When the testing work is carried out, the pulleys are retracted and the stability of the device is improved by the four support feet 3. When the testing is completed, the pulleys are lowered, and with the help of the handles 4 fixedly installed on the upper part of the main body 1, the device can be moved to improve the applicability of the testing main body 1 in various environments.

[0025] The upper surface of the main body 1 is equipped with four positioning pins 21 located at the four corners of the front wall panel 20 to be inspected. When the welded front wall panel of the car needs to be inspected, the positioning pins 21 at the four corners are installed downward into the positioning holes and screwed inward to complete the limiting of the front wall panel 20 to be inspected, prevent the front wall panel 20 to be inspected from moving, and ensure the stable progress of the inspection work.

[0026] 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. A welding assembly inspection fixture for automotive front wall panels, comprising a main body (1) and a front wall panel to be inspected (20), characterized in that, The main body (1) is provided with an X-axis linear guide rail (5) and a Y-axis linear guide rail distributed in a cross shape with the X-axis linear guide rail. The X-axis linear guide rail (5) includes a first guide rail and a first slider (6) sleeved on the first guide rail. The Y-axis linear guide rail includes a second guide rail (7) and a second slider (8) sleeved on the second guide rail (7). The end of the Y-axis linear guide rail is fixed on the first slider (6). A support plate (9) is fixedly installed on the upper wall of the second slider (8). A support column (13) is fixedly installed on the upper plate of the support plate (9). A second support rod is fixedly installed on the support column (13). A movable positioning plate (14) is fixedly installed at the end of the second support rod. The movable positioning plate (14) A movable rod (15) slides through the upper part of the movable rod (15). The upper and lower ends of the movable rod (15) are respectively fixed with a first limiting plate (17) and a second limiting plate (18). A buffer spring (16) is sleeved on the upper outer wall of the movable rod (15). The two ends of the buffer spring (16) are respectively fixedly connected to the lower side wall of the first limiting plate (17) and the outer wall of the movable rod (15). A movable plate (19) is fixedly installed on the outer wall of the movable rod (15). An adjustment mechanism for pushing the movable plate (19) to move up and down is provided on the support plate (9). A detection mechanism is fixedly installed on the lower plate surface of the second limiting plate (18). The detection mechanism includes a detection rod and multiple sets of thin film pressure sensors (22) fixed on the outer wall of the detection rod from top to bottom.

2. The automotive front panel welding assembly inspection fixture according to claim 1, characterized in that, The lower wall of the main body (1) is symmetrically and fixedly equipped with four hydraulic telescopic pulleys (2) and four support feet (3).

3. The automotive front panel welding assembly inspection fixture according to claim 1, characterized in that, The adjustment mechanism includes a support rod fixedly installed on the support plate (9). A rotating motor (10) is fixedly connected to the upper end of the support rod. A turntable (11) is fixed to the drive end of the rotating motor (10). A lever (12) is installed on the outer wall of the turntable (11). The end of the lever (12) is located on the lower side of the moving plate (19).

4. The automotive front panel welding assembly inspection fixture according to claim 1, characterized in that, Two handles (4) are symmetrically fixedly installed on the upper wall of the main body (1).

5. The automotive front panel welding assembly inspection fixture according to claim 1, characterized in that, The detection rod is cone-shaped.

6. The automotive front panel welding assembly inspection fixture according to claim 1, characterized in that, The upper surface of the main body (1) is equipped with four positioning pins (21) located at the four corners of the front wall panel (20) to be inspected.

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