Bidirectional sliding mechanism for automobile testing fixture

Abstract

The utility model discloses a bidirectional sliding mechanism for an automobile testing fixture, which comprises a concentric-square-shaped frame and X-axis guide supporting structures arranged in the concentric-square-shaped frame, and convex supporting tables are arranged on the two sides of the interior of the concentric-square-shaped frame through the X-axis guide supporting structures. A vertical beam is installed on the outer wall of the side, close to the vertical center datum plane of the concentric-square-shaped frame, of the convex supporting table through a Z-axis guide supporting structure, a longitudinal arm is fixed to the outer wall of the side, away from the convex supporting table, of the vertical beam, and a testing fixture supporting piece used for assisting an automobile testing fixture in moving in the Y-axis direction is installed on the outer wall of one side of the longitudinal arm. According to the utility model, through the addition of the Z axis, the automobile testing fixture has moving and positioning capabilities in a third dimension, so that the height or thickness of automobile parts can be measured more comprehensively, and the measurement precision and accuracy are improved for parts with higher requirements on the dimensions in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile inspection tools, in particular to a bidirectional sliding mechanism for automobile inspection tools. Background Art

[0002] The bidirectional sliding mechanism is an important component of the automobile inspection fixture. Its function is to achieve accurate measurement and positioning of automobile parts with the cooperation of the inspection fixture. The mechanism is composed of guide rails, sliders, transmission systems and measuring devices. The guide rails provide a stable moving trajectory. The sliders connect the parts to be tested and slide bidirectionally on the guide rails. The transmission system drives the sliders to move, and the measuring device collects parameters such as the size of the parts in real time. The working principle is based on the relative movement of the guide rails and sliders, the synergy of the transmission system and the measuring device. The system ensures that the movement and measurement reach the designed accuracy through feedback control.

[0003] For example, a bidirectional sliding mechanism for an automobile inspection fixture disclosed in the authorization announcement number CN209512902U includes a bottom plate, a first fixed groove is provided on the top of the bottom plate, a first support block is fixedly arranged inside the first fixed groove, a first slide plate is slidably arranged on the top of the first support block, a second fixed groove is provided on the top of the first slide plate, a second support block is also fixedly arranged inside the second fixed groove, a second slide plate is slidably arranged on the top of the second support block, etc., through the arrangement of the first slide plate, the second slide plate, the first support block, the second support block, the bottom plate and other structures, on the basis of the bottom plate and the first slide plate A second slide is added to cooperate with the automobile inspection fixture to meet the bidirectional movement in the cross direction. However, the above technical solution mainly moves the second slide on the X-axis and Y-axis to obtain the X-axis and Y-axis movement functions of the automobile inspection fixture. The shape and structure of automobile parts are usually complex, involving not only the dimensions on the plane, but also the height or thickness in the vertical direction. In some cases, it is necessary to accurately measure the three dimensions of the parts, and the bidirectional sliding mechanism only provides the movement capabilities of the X-axis and Y-axis, and cannot meet the measurement requirements of the Z-axis, which limits the inspection fixture from obtaining comprehensive features of the parts. Utility Model Content

[0004] The utility model aims to provide a two-way sliding mechanism for automobile inspection tools, which is provided with two three-axis debugging structures for two-way movement, so that the automobile inspection tools can change positions in three axes, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bidirectional sliding mechanism for an automobile inspection fixture, comprising a circular frame and an X-axis guide support structure arranged inside the circular frame, convex supports are installed on both sides of the circular frame through the X-axis guide support structure, a vertical beam is installed on the outer wall of the convex support close to the vertical center reference plane of the circular frame through the Z-axis guide support structure, a longitudinal arm is fixed on the outer wall of the vertical beam away from the convex support, a fixture support for assisting the automobile inspection fixture to move in the Y-axis direction is installed on the outer wall of one side of the longitudinal arm, and a Z-axis auxiliary vertical arm for assisting the longitudinal arm to perform Z-axis lifting and X-axis sliding is slidably installed on the top of the circular frame.

[0006] Preferably, the X-axis guide support structure includes cross bars fixed on both sides of the circular frame, and slide cylinders slidably mounted on both ends of the cross bar surface, and the convex support is fixed between the two slide cylinders in the Y-axis direction.

[0007] Preferably, the inspection fixture support includes two cylindrical rear protrusions fixed on the outer wall of one side of the longitudinal arm, and two vertical plates welded at the top ends of the cylindrical rear protrusions, a right-angle plate is slidably installed on the outer wall of one side of the vertical plate, and a first straight vertical groove is provided on both sides of the surface of the vertical plate, and the width of the vertical plate is equal to the diameter of the cross bar.

[0008] Preferably, both sides of the top of the circular frame are provided with linear sinking grooves, in which the Z-axis auxiliary vertical arm is slidably installed, and a second straight vertical groove for the longitudinal arm to be lifted and lowered is provided inside the Z-axis auxiliary vertical arm.

[0009] Preferably, the Z-axis guide support structure includes a dovetail platform installed on the outer wall of one side of the convex support platform, and a dovetail guide rail installed on the back side of the vertical beam, and the dovetail guide rail and the dovetail platform are slidably matched.

[0010] Preferably, both inner walls of the Z-axis auxiliary vertical arm are provided with a rectangular groove extending downward, and both side outer walls of the longitudinal arm are provided with a protrusion which is slidably matched with the rectangular groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the bidirectional sliding machine for automobile inspection fixtures enables the automobile inspection fixtures to move and position in the third dimension by adding the Z-axis, thereby being able to more comprehensively measure the height or thickness of automobile parts. For some parts with higher requirements for vertical dimensions, the measurement precision and accuracy are improved, and the sliding structure of the Z-axis makes the entire inspection fixture system more flexible, and the position and motion range of the Z-axis can be adjusted according to different measurement requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the inspection fixture support of the utility model;

[0016] In the figure: 1, circular frame; 101, straight sinking groove; 2, X-axis guide support structure; 201, cross bar; 202, slide cylinder; 3, convex support platform; 4, Z-axis guide support structure; 401, dovetail platform; 402, dovetail guide rail; 5, vertical beam; 6, longitudinal arm; 7, inspection fixture support; 701, vertical plate; 702, first straight vertical groove; 703, right-angle plate; 704, cylindrical rear convex; 8, Z-axis auxiliary vertical arm; 801, second straight vertical groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 , the utility model provides an embodiment: a bidirectional sliding mechanism for automobile inspection tools, comprising a circular frame 1 and an X-axis guide support structure 2 arranged inside the circular frame 1, convex supports 3 are installed on both sides of the circular frame 1 through the X-axis guide support structure 2, a vertical beam 5 is installed on the outer wall of the convex support 3 on one side close to the vertical center reference plane of the circular frame 1 through the Z-axis guide support structure 4, a longitudinal arm 6 is fixed on the outer wall of the vertical beam 5 on the side away from the convex support 3, and a inspection tool support 7 for assisting the automobile inspection tool to move in the Y-axis direction is installed on the outer wall of one side of the longitudinal arm 6, the automobile inspection tool to be used is arranged on the inspection tool support 7, and two inspection tool supports 7 arranged oppositely can each be arranged with an automobile inspection tool, and the inspection tool support 7 enables the automobile inspection tool to obtain a moving function on the Y-axis, and a Z-axis auxiliary vertical arm 8 for assisting the longitudinal arm 6 to perform Z-axis lifting and X-axis sliding is slidably installed on the top of the circular frame 1;

[0019] The staff manually pushes up the inspection fixture support 7, so that the inspection fixture support 7 drives the longitudinal arm 6, the vertical beam 5 and other components to move upward together. In this process, the vertical beam 5 and the convex support 3 slide relative to each other in the vertical direction through the Z-axis guide support structure 4, and at the same time cooperates with the Z-axis auxiliary vertical arm 8 to improve the lifting stability and lifting accuracy of the vertical beam 5, the longitudinal arm 6, the inspection fixture support 7 and other components;

[0020] The X-axis guide support structure 2 includes a crossbar 201 fixed on both sides of the inner side of the circular frame 1, and slide cylinders 202 slidably mounted on both ends of the surface of the crossbar 201. The convex support 3 is fixed between the two slide cylinders 202 in the Y-axis direction. In the X-axis direction, the crossbar 201 and the slide cylinder 202 are responsible for the lateral guidance and support of the convex support 3, so that the automobile inspection fixture can achieve precise movement in the horizontal direction and achieve precise positioning, ensuring the accuracy of the lateral measurement and positioning of the parts to be tested;

[0021] The inspection fixture support 7 includes two cylindrical rear protrusions 704 fixed on the outer wall of one side of the longitudinal arm 6, and a vertical plate 701 welded at the top of the two cylindrical rear protrusions 704. A right-angle plate 703 is slidably installed on the outer wall of one side of the vertical plate 701. Both sides of the surface of the vertical plate 701 are provided with a first straight vertical groove 702. The width of the vertical plate 701 is equal to the diameter of the cross bar 201. In the Y-axis direction, the right-angle plate 703 can slide relative to the vertical plate 701. The guide rails and sliders on the outer wall of the vertical plate 701 ensure the guiding stability of the automobile inspection fixture in the front and rear directions.

[0022] Both sides of the top of the circular frame 1 are provided with straight sinking grooves 101, in which the Z-axis auxiliary vertical arm 8 is slidably installed, a second straight vertical groove 801 for the longitudinal arm 6 to be lifted and lowered is provided inside the Z-axis auxiliary vertical arm 8, and both inner walls of the Z-axis auxiliary vertical arm 8 are provided with rectangular grooves extending downward, and both outer walls of the longitudinal arm 6 are provided with protrusions that slide and cooperate with the rectangular grooves;

[0023] The Z-axis guide support structure 4 includes a dovetail platform 401 installed on the outer wall of one side of the convex support platform 3, and a dovetail guide rail 402 installed on the back of the vertical beam 5. The dovetail guide rail 402 and the dovetail platform 401 are slidably matched. In the Z-axis direction, the longitudinal arm 6 drives the vertical beam 5, the dovetail guide rail 402 and the dovetail platform 401 to slide relative to each other, and the Z-axis auxiliary vertical arm 8 enables the longitudinal arm 6 to perform Z-axis guidance when moving horizontally;

[0024] The Z-axis guide support structure 4 and the Z-axis auxiliary vertical arm 8 enhance the stability of the longitudinal arm 6, the inspection fixture support 7 and other components in the Z-axis direction by providing additional support, avoiding shaking and instability during the measurement process and ensuring the accuracy in the vertical direction.

[0025] When the embodiment of the present application is in use, first, the staff can arrange the automobile inspection tool to be used on the inspection tool support 7. Each of the two inspection tool supports 7 arranged opposite to each other can be arranged with an automobile inspection tool. The inspection tool support 7 enables the automobile inspection tool to obtain a moving function on the Y axis. When the two inspection tool supports 7 and the automobile inspection tool need to be close to each other, the staff manually slides the convex support 3 so that the convex support 3 moves in the extension direction of the circular frame 1 through the X-axis guide support structure 2, thereby adjusting the positions of the inspection tool support 7 and the automobile inspection tool on the X axis. At this time, the automobile inspection tool already has the moving function of the X and Y axes. When it is necessary to use the automobile inspection tool to detect the height or thickness and other properties of automobile parts, the staff manually pushes up the inspection tool support 7 so that the inspection tool support 7 drives the longitudinal arm 6, the vertical beam 5, etc. The components move up together. During this process, the Z-axis guide support structure 4 allows the vertical beam 5 and the convex support 3 to slide relative to each other in the vertical direction. At the same time, the Z-axis auxiliary vertical arm 8 is used to improve the lifting stability and lifting accuracy of the components such as the vertical beam 5, the longitudinal arm 6, and the inspection fixture support 7. The two-way sliding mechanism enables the automobile inspection fixture to have the ability to move and position in the third dimension through the addition of the Z-axis, so that the height or thickness of automobile parts can be measured more comprehensively. For some parts with higher requirements on the vertical size, the measurement precision and accuracy are improved, and the sliding structure of the Z-axis makes the entire inspection fixture system more flexible. The position and movement range of the Z-axis can be adjusted according to different measurement requirements. This flexibility adapts to different working scenes and situations where the size and shape of parts vary greatly.

Claims

1. A bidirectional sliding mechanism for automobile inspection fixtures, characterized in that: The invention comprises a circular frame (1) and an X-axis guide support structure (2) arranged inside the circular frame (1); convex supports (3) are installed on both sides of the circular frame (1) through the X-axis guide support structure (2); a vertical beam (5) is installed on the outer wall of the convex support (3) on one side close to the vertical center reference plane of the circular frame (1) through the Z-axis guide support structure (4); a longitudinal arm (6) is fixed on the outer wall of the vertical beam (5) on the side away from the convex support (3); a check fixture support member (7) for assisting the automobile check fixture to move in the Y-axis direction is installed on the outer wall of one side of the longitudinal arm (6); and a Z-axis auxiliary vertical arm (8) for assisting the longitudinal arm (6) to perform Z-axis lifting and X-axis sliding is slidably installed on the top end of the circular frame (1).

2. The bidirectional sliding mechanism for automobile inspection fixture according to claim 1, characterized in that: The X-axis guide support structure (2) comprises a cross bar (201) fixed on both sides of the inner side of the circular frame (1), and a slide cylinder (202) slidably mounted on both ends of the surface of the cross bar (201), and the convex support platform (3) is fixed between the two slide cylinders (202) in the Y-axis direction.

3. A bidirectional sliding mechanism for automobile inspection fixture according to claim 2, characterized in that: The inspection fixture support (7) comprises two cylindrical rear protrusions (704) fixed on the outer wall of one side of the longitudinal arm (6), and a vertical plate (701) welded at the top of the two cylindrical rear protrusions (704), a right-angle plate (703) is slidably mounted on the outer wall of one side of the vertical plate (701), and a first straight vertical groove (702) is provided on both sides of the surface of the vertical plate (701), and the width of the vertical plate (701) is equal to the diameter of the cross bar (201).

4. The bidirectional sliding mechanism for automobile inspection fixture according to claim 1, characterized in that: Both sides of the top of the circular frame (1) are provided with straight sinking grooves (101), and in the straight sinking groove (101) where the Z-axis auxiliary vertical arm (8) is slidably installed, a second straight vertical groove (801) for the longitudinal arm (6) to be lifted and lowered is provided inside the Z-axis auxiliary vertical arm (8).

5. The bidirectional sliding mechanism for automobile inspection fixture according to claim 1, characterized in that: The Z-axis guide support structure (4) comprises a dovetail platform (401) mounted on the outer wall of one side of the convex support platform (3), and a dovetail guide rail (402) mounted on the back of the vertical beam (5), and the dovetail guide rail (402) and the dovetail platform (401) are slidably matched.

6. The bidirectional sliding mechanism for automobile inspection fixture according to claim 1, characterized in that: The two inner walls of the Z-axis auxiliary vertical arm (8) are both provided with rectangular grooves extending downwards, and the two outer walls of the longitudinal arm (6) are provided with protrusions which are slidably matched with the rectangular grooves.

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