An intake and exhaust rocker arm arc detection device

Abstract

The present invention discloses an intake and exhaust rocker arm curvature detection device comprising a base plate, a bearing base, a micrometer fixing column, and a rotating shaft. A micrometer is provided on the micrometer fixing column. The rotating shaft rotates with the bearing base through a bearing. A workpiece seat is sleeved on the rotating shaft. The portion of the rotating shaft located above the workpiece seat is a semi-cylindrical structure. A positioning column and a positioning block are provided on the workpiece seat. The positioning block is provided with a positioning groove adapted to the intake and exhaust rocker arm. The device has a reasonable structure, is easy to use, and is easy to assemble. The present invention can detect the curvature of the wall to be measured on the intake and exhaust rocker arm through a detection head provided at the front end of the micrometer, thereby avoiding damage to the intake and exhaust rocker arm caused by direct detection with a micrometer. The intake and exhaust rocker arm can be driven to rotate by the workpiece seat, and the intake and exhaust rocker arm can slide up and down on the positioning column, thereby enabling the micrometer to detect the curvature of the intake and exhaust rocker arm at different heights.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to an intake and exhaust rocker arm radian detection device. Background Art

[0002] The intake and exhaust rocker arms are crucial components of the engine's valvetrain. Their function, under the influence of the valvetrain's camshaft and pushrods, is to periodically open and close the intake and exhaust passages, allowing fresh air to enter the cylinders and expelling post-combustion exhaust gases from them, completing the intake and exhaust process in the working cycle. Prior to assembly, the intake and exhaust rocker arms must undergo relevant dimensional testing to ensure they meet standards. This testing includes radian testing. However, during this radian testing process, personnel often need to inspect the radian at different locations on the arm, a feat not possible with existing testing equipment. Summary of the Invention

[0003] The purpose of the present invention is to provide an intake and exhaust rocker arm radian detection device to solve the above technical problems.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A device for detecting the curvature of an intake and exhaust rocker arm includes a base plate, a bearing base and a micrometer fixing column are provided on the base plate, a micrometer is provided on the micrometer fixing column, a groove is provided on the bearing base, a bearing is installed in the groove of the bearing base, a rotating shaft is inserted in the bearing, the rotating shaft rotates with the bearing, a workpiece seat is sleeved on the rotating shaft, the part of the rotating shaft located above the workpiece seat is a semi-cylindrical structure, the arc surface of the semi-cylindrical structure corresponds to the detection head of the micrometer and the intake and exhaust rocker arm, a positioning column and a positioning block are provided on the workpiece seat, the positioning column is located between the positioning block and the rotating shaft, and the positioning block is provided with a positioning groove adapted to the intake and exhaust rocker arm on the side facing the positioning column.

[0006] As a preferred solution of the present invention, a clamping plate is further provided on the workpiece seat, and the positioning block is located between the clamping plate and the positioning column.

[0007] Furthermore, a spring is provided between the positioning block and the clamping plate.

[0008] Furthermore, the lower end of the clamping plate is detachably fixed to the workpiece seat by bolts.

[0009] Furthermore, inserts are provided on both sides of the clamping plate, and the inserts extend to both sides of the positioning block.

[0010] Furthermore, the insert and the clamping plate are detachably fixedly connected by bolts.

[0011] As a preferred solution of the present invention, the lower end of the bearing base is rotatably connected to the base plate via a bearing.

[0012] As a preferred solution of the present invention, the intake and exhaust rocker arm arc detection device further includes a limiting sleeve, and the limiting sleeve is movably mounted on the positioning column.

[0013] As a preferred solution of the present invention, a mounting hole and a slot are provided on the dial indicator fixing column, the slot is connected to the mounting hole, the detection rod of the dial indicator passes through the mounting hole on the dial indicator fixing column, and corresponding fastening holes are respectively provided on both side walls of the slot, bolts and nuts are installed in the fastening holes, and the side walls of the slot are fastened together by bolts and nuts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The intake and exhaust rocker arm curvature detection device provided by the present invention has a reasonable structure, is easy to use and easy to assemble; the present invention can detect the curvature of the wall to be measured on the intake and exhaust rocker arm through the detection head arranged at the front end of the micrometer, avoiding damage to the intake and exhaust rocker arm caused by direct detection with a micrometer, and can drive the intake and exhaust rocker arm to rotate through the workpiece seat, and the intake and exhaust rocker arm can slide up and down on the positioning column, so that the micrometer can detect the curvature of the intake and exhaust rocker arm at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a three-dimensional diagram of the intake and exhaust rocker arm radian detection device provided by the present invention;

[0018] Figure 2 It is a top view of the intake and exhaust rocker arm radian detection device provided by the present invention.

[0019] In the figure, 1-base plate, 2-bearing base, 3-bearing, 4-workpiece seat, 5-spring, 6-clamping plate, 7-insert, 8-positioning block, 9-limit sleeve, 10-positioning column, 11-rotating shaft, 12-micrometer fixing column, 13-micrometer, 14-slot, 15-fastening hole, 16-intake and exhaust rocker arm, 17-upper wall to be measured, 18-lower wall to be measured. DETAILED DESCRIPTION

[0020] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0021] like Figures 1-2 As shown, the intake and exhaust rocker arm curvature detection device provided by the present invention includes a base plate 1, a bearing base 2 and a micrometer fixing column 12 are provided on the base plate 1, a micrometer 13 is provided on the micrometer fixing column 12, a groove is provided on the bearing base 2, a bearing 3 is installed in the groove of the bearing base 2, a rotating shaft 11 is inserted in the bearing 3, the rotating shaft 11 is rotatably matched with the bearing 3, a workpiece seat 4 is sleeved on the rotating shaft 11, the part of the rotating shaft 11 located above the workpiece seat 4 is a semi-cylindrical structure, the arc surface of the semi-cylindrical structure corresponds to the detection head of the micrometer 13, a positioning column 10 and a positioning block 8 are provided on the workpiece seat 4, the positioning column 10 is located between the positioning block 8 and the rotating shaft 3, and a positioning groove adapted to the intake and exhaust rocker arm 16 is provided on the side of the positioning block 8 facing the positioning column 10.

[0022] Specifically, a clamping plate 6 is provided on the workpiece base 4. The lower end of the clamping plate 6 is removably fixed to the workpiece base 4 via bolts. A positioning block 8 is positioned between the clamping plate 6 and a positioning column 10. A spring 5 is provided between the positioning block 8 and the clamping plate 6. Inserts 7 are also provided on either side of the clamping plate 6. The inserts 7 are removably fixed to the clamping plate 6 via bolts and extend to either side of the positioning block 8. The spring 5 and inserts 7 provide further stability to the upper portion of the positioning block 8.

[0023] Specifically, the lower end of the bearing base 2 is rotatably connected to the base plate 1 through a bearing.

[0024] Specifically, the workpiece base 4 is detachably connected to the rotating shaft 11 through bolts, and the workpiece base 4 is detachably connected to the positioning column 10 through bolts.

[0025] Specifically, the intake and exhaust rocker arm curvature detection device provided by the present invention further includes a limit sleeve 9, which is movably mounted on a positioning post 10. It is understood that the present invention does not particularly limit the height of the limit sleeve 9, and the height of the limit sleeve 9 can be designed according to detection requirements. During detection, the limit sleeve 9 and the intake and exhaust rocker arm 16 are sequentially mounted on the positioning post 10, with the limit sleeve 9 positioned below the intake and exhaust rocker arm 16, so that the lower wall to be measured 18 corresponds to the detection head of the dial indicator 13.

[0026] Specifically, a mounting hole and a slot 14 are provided on the dial indicator fixing column 12. The slot 14 is connected to the mounting hole. The detection rod of the dial indicator 13 passes through the mounting hole on the dial indicator fixing column 12. Corresponding fastening holes 15 are respectively provided on both side walls of the slot 14. Bolts and nuts are installed in the fastening holes 15. The side walls of the slot 14 are fastened together by bolts and nuts.

[0027] When using the intake and exhaust rocker arm curvature detection device provided by the present invention to detect the curvature of the intake and exhaust rocker arm 16, the limit sleeve 9 and the intake and exhaust rocker arm 16 are sequentially placed on the positioning column 10, so that one side of the intake and exhaust rocker arm 16 is placed in the positioning groove of the positioning block 8. At this time, the height of the lower wall to be measured 18 matches the height of the detection head of the micrometer 13. The workpiece 4 is rotated to rotate the rotating shaft 11 and the intake and exhaust rocker arm 16. The curved surface of the rotating shaft 11 and the lower wall to be measured 18 contact the detection head of the micrometer 13 in turn, and the numerical value changes on the micrometer 13 are observed. According to the numerical value changes, it is judged whether the curvature of the lower wall to be measured 18 meets the assembly requirements. If you want to detect the curvature of the upper wall to be measured 17, you can also take out the limit sleeve 9 and the intake and exhaust rocker arm 16, and then put the intake and exhaust rocker arm 16 on the positioning column 10, move the intake and exhaust rocker arm 16 up and down to move the upper wall to be measured 17 to the position corresponding to the detection head of the micrometer 13, and then rotate the workpiece seat 4 to perform curvature detection; the operation of the entire detection process is very simple, which is conducive to improving detection efficiency.

[0028] The present invention can detect the degree of curvature of the wall to be measured on the intake and exhaust rocker arm through the detection head arranged at the front end of the micrometer 13, avoiding damage to the intake and exhaust rocker arm 16 caused by directly holding the micrometer for detection. The intake and exhaust rocker arm 16 can be driven to rotate through the workpiece seat 4, and the intake and exhaust rocker arm 16 can slide up and down on the positioning column 10, and the curvature of the upper wall to be measured 15 and the lower wall to be measured 16 of the intake and exhaust rocker arm 16 can be detected.

[0029] In summary, the intake and exhaust rocker arm radian detection device provided by the present invention has a reasonable structure, is easy to use, and is convenient to assemble.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. An intake and exhaust rocker arm radian detection device, characterized in that: The cam is provided with a plurality of grooves, and the grooves are provided on the bearing base, and the bearing is installed in the groove of the bearing base, and the bearing is inserted in the bearing. The shaft is rotatably matched with the bearing, and a workpiece seat is sleeved on the shaft. The part of the shaft located above the workpiece seat is a semi-cylindrical structure, and the arc surface of the semi-cylindrical structure corresponds to the detection head of the micrometer and the intake and exhaust rocker arm. A positioning column and a positioning block are provided on the workpiece seat, and the positioning column is located between the positioning block and the rotating shaft. The positioning block is provided with a positioning groove adapted to the intake and exhaust rocker arm on the side facing the positioning column.

2. The intake and exhaust rocker arm arc detection device according to claim 1, characterized in that: The workpiece seat is further provided with a clamping plate, and the positioning block is located between the clamping plate and the positioning column.

3. The intake and exhaust rocker arm arc detection device according to claim 2, characterized in that: A spring is provided between the positioning block and the clamping plate.

4. The intake and exhaust rocker arm arc detection device according to claim 2, characterized in that: The lower end of the clamping plate is detachably fixedly connected to the workpiece seat by bolts.

5. The intake and exhaust rocker arm arc detection device according to claim 2, characterized in that: Inserts are also provided on both sides of the clamping plate, and the inserts extend to both sides of the positioning block.

6. The intake and exhaust rocker arm arc detection device according to claim 5, characterized in that: The insert is detachably fixedly connected to the clamping plate via bolts.

7. The intake and exhaust rocker arm arc detection device according to claim 1, characterized in that: The lower end of the bearing base is rotatably connected to the base plate through a bearing.

8. The intake and exhaust rocker arm arc detection device according to claim 1, characterized in that: The intake and exhaust rocker arm arc detection device also includes a limiting sleeve, which is movably mounted on the positioning column.

9. The intake and exhaust rocker arm arc detection device according to claim 1, characterized in that: The dial indicator fixing column is provided with a mounting hole and a slot, the slot is connected to the mounting hole, the detection rod of the dial indicator passes through the mounting hole on the dial indicator fixing column, and the side walls on both sides of the slot are respectively provided with corresponding fastening holes, bolts and nuts are installed in the fastening holes, and the side walls on both sides of the slot are fastened together by the bolts and nuts.

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