Rocker arm fixed testing fixture

Abstract

The utility model belongs to the technical field of automobile testing fixtures, and particularly relates to a rocker arm fixing type testing fixture. Comprising two sets of supports, two sets of clamps and a cross beam, the supports and the clamps are symmetrically arranged based on the center of the cross beam, the clamps are slidably connected to the supports, each clamp comprises a movable frame, two clamping plates, a rotating shaft, a rocker arm and a distance sensor, the distance sensors are arranged on the supports, and the cross beam is located in a detection area of the distance sensors. The two clamping plates are arranged on the movable frame, the rotating shaft is rotationally connected to the movable frame and penetrates through the two clamping plates, the rocker arm is connected with the rotating shaft, the rocker arm drives the rotating shaft to rotate so as to control the clamping plates to move, the clamp is used for clamping and fixing a cross beam, and the position of the clamp on the support is adjusted according to data of the distance sensor. The pressure sensor is arranged on the inner side of one clamping plate, and the rocker arm adjusts the clamping force according to data of the pressure sensor. The detection tool precision and the working efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile inspection tools, and in particular relates to a rocker arm fixed inspection tool. Background Art

[0002] Automotive gauges are tools used to measure and inspect manufactured parts and assemblies to ensure the accuracy and quality of parts during the production process. Automotive gauges are divided into general gauges and special gauges. General gauges can be used for different types of parts and products, while special gauges are developed for specific types of parts or products. During use, the positioning pins on the bracket are abutted against the parts that need to be inspected on the parts, and the dimensions of the parts are inspected directly or indirectly through auxiliary tools such as go and no-go gauges. Therefore, automotive gauges usually need to be calibrated and verified to ensure their accuracy and reliability.

[0003] When using a gauge to inspect small-sized parts of a car, multiple locating pins on the bracket directly inspect multiple parts of the parts. When inspecting large-sized parts and need to inspect their central parts, the length of the locating pins is too long, which will lead to large errors. Therefore, a crossbeam is generally set on the bracket, and the locating pins are fixed on the crossbeam before inspection. At the same time, in order to facilitate the removal of parts, the crossbeam needs to be detachably fixed. The crossbeam is generally connected to the bracket by bolts. During use, the crossbeam needs to be repeatedly disassembled to place or remove parts. After long-term use, the fixing bolts themselves will wear or the squeezing of the crossbeam will cause it to deform in the fixed position, resulting in deviations in the accuracy of the locating pins installed on the crossbeam, resulting in a decrease in the inspection accuracy of the parts. It cannot meet the requirements when used to inspect parts that require high precision, and frequent calibration and verification of the installation accuracy of the crossbeam will also reduce work efficiency.

[0004] Therefore, in order to improve the problem that the accuracy of automobile parts inspection fixtures decreases after long-term use and the work efficiency is low, a rocker arm fixed inspection fixture is proposed in this scheme. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a rocker arm fixed type inspection fixture.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A rocker arm fixed type inspection fixture comprises a bracket, a clamp, an adjustment component and a crossbeam, wherein the clamp is slidably connected to the bracket, a distance sensor is arranged on the bracket, the clamp is used to clamp the crossbeam, and the crossbeam is located within the detection area of ​​the distance sensor, the adjustment component is arranged on the bracket, the adjustment component is connected to the clamp, and the adjustment component is used to adjust the position of the clamp on the bracket according to the distance sensor data.

[0008] Furthermore, the clamp includes a movable frame, two clamping plates, a rotating shaft and a rocker arm, the two clamping plates are arranged in parallel on the movable frame, the rotating shaft is rotatably connected to the movable frame and passes through the two clamping plates, the rocker arm is transmission-connected to the rotating shaft, and the rocker arm drives the rotating shaft to rotate to control the movement of the clamping plates.

[0009] Furthermore, a slide groove is provided at the inner bottom of the movable frame, and the bottoms of the two clamping plates are slidably engaged with the slide groove.

[0010] Furthermore, the axial surface of the rotating shaft is symmetrically provided with threads on both sides based on the center point of the axis, and the threads on both sides are in opposite directions, and the two clamping plates are rotatably engaged with the threads of the rotating shaft.

[0011] Furthermore, the bracket includes two vertical walls, the two vertical walls are respectively arranged on both sides of the movable frame, and the adjustment component is arranged on one of the vertical walls.

[0012] Furthermore, the adjustment component includes a knob and a gear, the gear is arranged at the bottom of the vertical wall, the knob vertically penetrates the vertical wall and is transmission-connected with the gear at the bottom thereof, and teeth are arranged at the bottom of the movable frame to mesh with the gear.

[0013] Furthermore, the two vertical walls are respectively an inner vertical wall and an outer vertical wall, the top of the inner vertical wall abuts against the beam to limit the height of the beam, and the inner side surface of the outer vertical wall abuts against the side surface of the beam to limit the horizontal displacement of the beam.

[0014] Furthermore, it also includes a pressure sensor, which is arranged on the inner side of one of the clamping plates, and the rocker arm adjusts the clamping force according to the pressure sensor data.

[0015] The beneficial effects of the utility model are as follows: the relative position distance between the crossbeam and the bracket on the fixture is detected by the distance sensor; when the horizontal position of the fixture deviates after being clamped, the deviation data is displayed on the display screen arranged on the mobile frame; by adjusting the position of the fixture on the bracket, the position deviation of the crossbeam can be corrected to improve the inspection accuracy of the inspection fixture for automobile parts; at the same time, by replacing the original bolt fixation with the fixture, it is more convenient and quick to use, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a front structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view structure of the clamp of the utility model.

[0019] Explanation of the reference numerals: 1. crossbeam; 2. bracket; 3. positioning sheath; 4. vertical wall; 5. knob; 6. rocker arm; 7. moving frame; 8. distance sensor; 9. splint; 10. rotating shaft; 11. pressure sensor. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] like Figure 1-2 As shown, a rocker arm fixed type inspection fixture of the utility model comprises a bracket 2, a clamp, an adjustment component and a crossbeam 1, the clamp is slidably connected to the bracket 2, a distance sensor 8 is arranged on the bracket 2, the clamp is used to clamp the crossbeam 1, the crossbeam 1 is located in the detection area of ​​the distance sensor 8, the adjustment component is arranged on the bracket 2, the adjustment component is connected to the clamp, and the adjustment component is used to adjust the position of the clamp on the bracket 2 according to the data of the distance sensor 8;

[0022] Since some automobile parts have high requirements for hole position accuracy, special inspection tools are needed to inspect the parts. When using the inspection tools to inspect the parts, the positioning sheath 3 is needed to determine whether the hole position on the part is accurate. When facing large-sized parts, the length of the positioning pin is too long, which will cause large errors. Therefore, a crossbeam 1 is generally set on the bracket 2, and the positioning pin is fixed on the crossbeam 1 before inspection. At the same time, in order to facilitate the removal of parts, the crossbeam 1 needs to be detachably fixed. The crossbeam 1 is generally connected to the bracket 2 by bolts. During use, the crossbeam 1 needs to be repeatedly disassembled to place or take parts. After long-term use, the fixing bolts themselves will wear or the compression of the crossbeam 1 will cause it to deform in the fixed position, resulting in deviations in the accuracy of the positioning pins installed on the crossbeam 1, resulting in a decrease in the inspection accuracy of the parts.

[0023] In order to avoid the problem of installation accuracy of the beam 1 caused by wear of the fixing bolts during repeated disassembly and assembly of the beam 1, a clamp is used to replace the original fixing bolts. In order to ensure the stability of the fixing of the beam 1, there are two sets of brackets 2 and clamps, which are symmetrically arranged based on the center of the beam 1. The clamp is slidably connected to the bracket 2, and the inspected part is under the beam 1. Since the general clamp clamps the object through two clamps 9, the positioning of the beam 1 may deviate after each clamping during the clamping process. Therefore, the clamp includes a moving frame 7, two clamps 9, a rotating shaft 10 and a rocker arm 6. The moving frame 7 includes a bottom plate and two supporting plates perpendicular to the bottom plate, the two supporting plates are parallel to each other, a distance sensor 8 is arranged on the bracket 2, a crossbeam 1 is located in the detection area of ​​the distance sensor 8, two clamping plates 9 are arranged between the two supporting plates on the mobile frame 7, a rotating shaft 10 is rotatably connected to the supporting plate of the mobile frame 7 and passes through the two clamping plates 9, a rocker arm 6 is connected to the rotating shaft 10, the rocker arm 6 drives the rotating shaft 10 to rotate to control the movement of the clamping plates 9, a clamp is used to clamp the crossbeam 1, an adjusting component adjusts the position of the clamp on the bracket 2 according to the data of the distance sensor 8, and the crossbeam 1 is moved parallel to the direction of the clamping plates 9 through the adjusting component;

[0024] Since the clamp is slidably connected to the bracket 2, the clamp is first adjusted to the zero position before clamping the beam 1. After placing the two ends of the beam 1 at the two clamp clamping positions respectively, the rocker 6 is rotated to make the two clamps 9 gradually approach and clamp the beam 1. Since the position of the bracket 2 on the inspection table is fixed, the position of the distance sensor 8 on the bracket 2 is also fixed. The distance sensor 8 is used to detect the relative position distance between the beam 1 and the bracket 2 on the clamp. When the horizontal position of the clamp deviates after clamping, the position deviation of the beam 1 can be corrected by adjusting the position of the clamp on the bracket 2, so as to improve the inspection accuracy of the inspection fixture for automobile parts. At the same time, the original bolt fixation is replaced by the clamp, which is more convenient and quick in use, thereby improving work efficiency.

[0025] Since the two clamping plates 9 are driven to move only by the rotating shaft 10 in the above embodiment, there is a probability that uneven force will occur during the clamping of the crossbeam 1, causing the clamping plates 9 to lose balance. In order to ensure that the two clamping plates 9 move stably during use, in one embodiment, a slide groove is provided at the bottom of the inner side of the moving frame 7, and the bottoms of the two clamping plates 9 are slidably engaged with the slide groove;

[0026] The two clamps 9 are restricted in the vertical direction by the slide groove and cannot move, so that the two clamps 9 are always in a state perpendicular to the bottom of the movable frame 7. They can only move in the horizontal direction through the slide groove, and move under the drive of the rotating shaft 10. Therefore, it can be ensured that the clamps 9 will not tilt due to uneven force when clamping the beam 1, so as to ensure the detection accuracy of the inspection fixture.

[0027] In one embodiment, the axial surface of the rotating shaft 10 is symmetrically provided with threads on both sides based on the center point of the axis, and the directions of the threads on both sides are opposite, and the two clamps 9 are threadedly engaged with the rotating shaft 10; the directions of the threads connecting the clamps 9 on both sides of the rotating shaft 10 are opposite, so that the threads of the rotating shaft 10 can push the two clamps 9 to move in different directions under the rotation of the rocker arm 6, that is, when the rotating shaft 10 moves in only one direction, the two clamps 9 simultaneously approach or move away from the center of the clamp, so as to ensure that the clamps 9 can be in the center position when clamping the beam 1, thereby reducing the adjustment amount of the clamp position.

[0028] After repeated use, the clamped part of the beam 1 may be worn and deformed due to the clamping of the clamp. At this time, deviation will occur when clamping is performed again. Therefore, after the relative distance between the beam 1 and the bracket 2 is detected by the distance sensor 8, the position of the clamp is adjusted according to the relative distance. In order to facilitate the adjustment of the clamp, in one embodiment, the bracket 2 includes two vertical walls 4, and the two vertical walls 4 are respectively arranged on both sides of the movable frame 7, and the adjustment component is arranged on one of the vertical walls 4; in addition to being used to install the adjustment component, the two vertical walls 4 can also limit the position of the clamp to prevent the clamp from shifting during the movement.

[0029] In one embodiment, the adjustment component includes a knob 5 and a gear. The knob 5 passes through one of the vertical walls 4 and is connected to the gear at the bottom thereof. The bottom of the movable frame 7 is provided with teeth that mesh with the gear. The knob 5 is rotationally connected to one of the vertical walls 4. The gear at the bottom of the knob 5 is smaller in size and has fewer teeth. After the teeth at the bottom of the movable frame 7 mesh, the distance that the movable frame 7 moves when the knob 5 is rotated one circle is smaller, which can improve the accuracy of the position adjustment of the movable frame 7, thereby improving the accuracy of the position adjustment and fixation of the beam 1.

[0030] Since the same parts need to be inspected multiple times during the inspection of automobile parts using the inspection fixture, the crossbeam 1 needs to be disassembled repeatedly to facilitate the placement of the parts. In order to quickly determine the clamping position of the crossbeam 1, in one embodiment, the two vertical walls 4 are respectively an inner vertical wall 4 and an outer vertical wall 4. The top of the inner vertical wall 4 abuts against the crossbeam 1 to limit the height of the crossbeam 1, and the inner side surface of the outer vertical wall 4 abuts against the side surface of the crossbeam 1 to limit the horizontal displacement of the crossbeam 1.

[0031] During use, only one side of the beam 1 needs to be butted against the inner side surface of the outer wall 4 on one side, and then the other side of the beam 1 is placed, while the tops of the inner walls 4 on both sides are butted against each other. Therefore, after the up and down, front and back positions of the beam 1 are restricted, the left and right positions of the beam 1 can be fixed by a clamp to complete the rapid fixation of the beam 1, preventing it from being displaced during the detection process, thereby improving the detection accuracy and work efficiency.

[0032] In order to ensure the stability of the cross beam 1 when clamping the cross beam 1, the fixing device will generally apply the maximum clamping force to the cross beam 1 as much as possible, which will cause the cross beam 1 to be easily deformed at the clamped position. Long-term use will cause the superposition of deformation until a large error occurs. In order to prevent the clamping force of the fixture from causing the deformation of the cross beam 1, in one embodiment, a pressure sensor 11 is further included. The pressure sensor 11 is arranged on the inner side of one of the clamping plates 9, and the rocker arm 6 adjusts the clamping force according to the data of the pressure sensor 11.

[0033] The clamping force of the clamp is detected by the pressure sensor 11, and the material used for the general beam 1 can find the pressure value that causes its deformation. The pressure value is detected by the pressure sensor 11 during the clamping process of the clamp. When the rocker arm 6 is rotated to drive the rotating shaft 10 to rotate so that the two clamping plates 9 apply a clamping force to the beam 1, when the pressure value at which the material of the beam 1 is deformed is about to be reached, a prompt is given through the display screen, and the rotation of the rocker arm 6 is stopped to avoid deformation of the beam 1 after long-term use, so as to improve the detection accuracy, avoid frequent replacement of deformed beams 1, and reduce the cost of use.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rocker arm fixed type inspection fixture, characterized in that: It includes a bracket, a clamp, an adjustment component and a crossbeam, the clamp is slidably connected to the bracket, the bracket is provided with a distance sensor, the clamp is used to clamp the crossbeam, the crossbeam is located in the detection area of ​​the distance sensor, the adjustment component is arranged on the bracket, the adjustment component is connected to the clamp, and the adjustment component is used to adjust the position of the clamp on the bracket according to the distance sensor data.

2. The rocker arm fixed type inspection fixture according to claim 1, characterized in that: The clamp includes a moving frame, two clamping plates, a rotating shaft and a rocker arm. The two clamping plates are arranged in parallel on the moving frame. The rotating shaft is rotatably connected to the moving frame and passes through the two clamping plates. The rocker arm is transmission-connected to the rotating shaft. The rocker arm drives the rotating shaft to rotate to control the movement of the clamping plates.

3. The rocker arm fixed type inspection fixture according to claim 2, characterized in that: A slide groove is arranged at the inner bottom of the movable frame, and the bottoms of the two clamping plates are slidably engaged with the slide groove.

4. The rocker arm fixed type inspection fixture according to claim 2, characterized in that: The axial surface of the rotating shaft is symmetrically provided with threads on both sides based on the center point of the axis, and the threads on both sides are in opposite directions. The two clamping plates are rotatably engaged with the threads of the rotating shaft.

5. The rocker arm fixed type inspection fixture according to claim 2, characterized in that: The support comprises two vertical walls, the two vertical walls are respectively arranged on both sides of the movable frame, and the adjustment component is arranged on one of the vertical walls.

6. The rocker arm fixed type inspection fixture according to claim 5, characterized in that: The adjustment component includes a knob and a gear. The gear is arranged at the bottom of the vertical wall. The knob vertically penetrates the vertical wall and is transmission-connected with the gear at the bottom. The bottom of the movable frame is provided with teeth meshing with the gear.

7. The rocker arm fixed type inspection fixture according to claim 5, characterized in that: The two vertical walls are respectively an inner vertical wall and an outer vertical wall. The top of the inner vertical wall abuts against the beam to limit the height of the beam, and the inner side surface of the outer vertical wall abuts against the side surface of the beam to limit the horizontal displacement of the beam.

8. The rocker arm fixed type inspection fixture according to claim 2, characterized in that: It also includes a pressure sensor, which is arranged on the inner side of one of the clamping plates, and the rocker arm adjusts the clamping force according to the pressure sensor data.

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