Universal coupling axial centering deviation calibration tool

Abstract

The utility model provides a kind of universal coupling axial centering deviation calibration tool, including base, base upper surface is fixedly installed with reference frame, reference frame side is fixedly installed with mounting sleeve, mounting sleeve side is equipped with reference flange plate, reference flange plate side is fixedly connected with connecting block, connecting groove is opened in mounting sleeve side, connecting block surface is fixedly connected with locating block, locating groove is opened in mounting sleeve side, fixed bolt is threadedly connected in mounting sleeve side, screw hole is opened in connecting block side.The utility model is through setting reference flange plate on reference frame, and using the structure of connecting block and connecting groove sliding fit, locating block and locating groove alignment limit, fixed bolt and screw hole locking, the quick installation and replacement of reference flange plate are realized, and different specifications of universal coupling are conveniently adapted.

Description

Technical Field

[0001] This utility model relates to the technical field of universal coupling production equipment, and in particular to a universal coupling axial alignment deviation calibration fixture. Background Technology

[0002] Universal joints are key components in mechanical transmission systems, widely used in automobiles, ships, and industrial machinery. Their primary function is to connect two shafts that are not on the same straight line, allowing for a certain degree of angular misalignment and axial displacement to transmit torque and compensate for installation errors or absorb vibration. The alignment accuracy of the universal joint directly affects the smooth operation and service life of the entire transmission system. Therefore, ensuring that the axial alignment deviation of the universal joint is within the allowable range is crucial during installation and maintenance.

[0003] In existing technologies, axial alignment deviation calibration of universal couplings generally uses general measuring tools such as dial indicators and micrometers, which are fixed by magnetic bases. The position parameters of the input and output flanges are measured separately, and then the deviation value is calculated. This method has obvious drawbacks. The magnetic base has poor adhesion stability and is easily affected by vibration and oil. Moreover, the position of the base needs to be repeatedly adjusted during measurement, which is cumbersome. The measurement accuracy depends on the operator's experience. Secondly, special calibration fixtures are used. However, the reference flange of traditional special fixtures is often integrally formed with the fixture body, which can only be used for a single specification of universal coupling. When dealing with couplings of different models and flange hole distances, the entire set of fixtures needs to be replaced, resulting in poor versatility. Utility Model Content

[0004] The purpose of this invention is to solve the problems of poor stability, cumbersome operation, reliance on manual experience for measurement accuracy, and insufficient versatility of traditional special calibration fixtures in the existing technology for calibrating the axial alignment deviation of universal couplings. This invention proposes a calibration fixture for the axial alignment deviation of universal couplings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A universal coupling axial alignment deviation calibration fixture includes a base, a reference frame fixedly mounted on the upper surface of the base, an mounting sleeve fixedly mounted on the side of the reference frame, a reference flange provided on the side of the mounting sleeve, a connecting block fixedly connected to the side of the reference flange, a connecting groove formed on the side of the mounting sleeve, a positioning block fixedly connected to the surface of the connecting block, a positioning groove formed on the side of the mounting sleeve, a fixing bolt threadedly connected to the side of the mounting sleeve, a screw hole formed on the side of the connecting block, a horizontal plate provided on the side of the reference frame, a mounting plate slidably connected to the surface of the horizontal plate, a measuring gauge fixedly mounted on the surface of the mounting plate, a moving block slidably connected inside the horizontal plate, a threaded rod rotatably connected inside the horizontal plate, a rotating head fixedly mounted at one end of the threaded rod slidably connected, a sliding rod slidably mounted on the inner side of the horizontal plate, a moving block slidably connected on the inner side of the reference frame, a threaded rod rotatably connected on the inner side of the reference frame, a rotating head fixedly mounted at one end of the threaded rod slidably connected, and a sliding rod slidably mounted on the inner side of the reference frame.

[0006] Preferably, the connecting block and the connecting groove are slidably connected, the positioning block and the positioning groove are slidably connected, and the fixing bolt and the screw hole are threadedly connected.

[0007] Preferably, the upper surface of the first movable block is fixedly connected to the lower surface of the mounting plate, the first threaded rod is threadedly connected to the first movable block, and the first movable block is slidably connected to the first sliding rod.

[0008] Preferably, the side of the second movable block is fixedly connected to the side of the horizontal plate, the second threaded rod is threadedly connected to the second movable block, and the second movable block is slidably connected to the second sliding rod.

[0009] Preferably, a vertical plate is fixedly installed on the surface of the reference frame, a support plate is provided on the side of the vertical plate, an arc-shaped lifting plate is fixedly installed on the surface of the support plate, a moving block three is slidably connected inside the vertical plate, a threaded rod three is rotatably connected inside the vertical plate, a rocker wheel is fixedly installed at one end of the threaded rod three, a sliding rod three is fixedly installed on the inner side of the vertical plate, and a bearing is fixedly installed on the inner side of the vertical plate.

[0010] Preferably, the side of the movable block three is fixedly connected to the side of the support plate, and the threaded rod three is threadedly connected to the movable block three.

[0011] Preferably, the movable block three is slidably connected to the slide rod three, and one end of the threaded rod three is fixedly connected to the inner ring of the bearing.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model achieves rapid installation and replacement of the reference flange by setting a detachable reference flange on the reference frame and adopting a structure of sliding fit between the connecting block and the connecting groove, alignment and limit of the positioning block and the positioning groove, and locking of the fixing bolt and the screw hole. It is easy to adapt to universal couplings of different specifications, improves the versatility and efficiency of the tooling. At the same time, the threaded rod one, the sliding rod one and the moving block one on the horizontal plate cooperate to drive the horizontal adjustment of the mounting plate, and the threaded rod two, the sliding rod two and the moving block two on the reference frame cooperate to drive the horizontal adjustment of the horizontal plate, so that the measuring instrument can be flexibly adjusted to the detection position, ensuring the accuracy of the centering deviation detection. 2. This utility model uses a rocker wheel to drive the threaded rod three to rotate, which allows the moving block three to slide along the sliding rod three, thereby driving the support plate and the arc-shaped lifting plate to move. This allows for stable lifting of the universal coupling during installation, making it easier for workers to accurately align the input and output ends, reducing shaking and offset during assembly, and improving installation efficiency and alignment accuracy. Attached Figure Description

[0013] Figure 1 A three-dimensional structural schematic diagram of a universal coupling axial alignment deviation calibration fixture is provided for this utility model; Figure 2 This utility model provides an exploded view of the reference flange and its connecting parts in a universal coupling axial alignment deviation calibration fixture. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model provides an exploded view of the horizontal plate and its connecting parts in a universal coupling axial alignment deviation calibration fixture. Figure 5 This utility model provides an exploded view of the center plate and the connecting part of a universal coupling axial alignment deviation calibration fixture.

[0014] Legend: 1. Base; 2. Reference frame; 3. Mounting sleeve; 4. Reference flange; 5. Connecting block; 6. Connecting groove; 7. Positioning block; 8. Positioning groove; 9. Fixing bolt; 10. Screw hole; 11. Horizontal plate; 12. Mounting plate; 13. Measuring gauge; 14. Moving block one; 15. Threaded rod one; 16. Rotating head one; 17. Sliding rod one; 18. Moving block two; 19. Threaded rod two; 20. Rotating head two; 21. Sliding rod two; 22. Vertical plate; 23. Support plate; 24. Arc-shaped lifting plate; 25. Moving block three; 26. Threaded rod three; 27. Rocker wheel; 28. Sliding rod three; 29. ​​Bearing. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example 1: As Figures 1-4 As shown, this utility model provides a universal coupling axial alignment deviation calibration fixture, including a base 1, a reference frame 2 fixedly mounted on the upper surface of the base 1, an mounting sleeve 3 fixedly mounted on the side of the reference frame 2, a reference flange 4 provided on the side of the mounting sleeve 3, a connecting block 5 fixedly connected to the side of the reference flange 4, a connecting groove 6 opened on the side of the mounting sleeve 3, a positioning block 7 fixedly connected to the surface of the connecting block 5, a positioning groove 8 opened on the side of the mounting sleeve 3, a fixing bolt 9 threadedly connected to the side of the mounting sleeve 3, a screw hole 10 opened on the side of the connecting block 5, a horizontal plate 11 provided on the side of the reference frame 2, a mounting plate 12 slidably connected to the surface of the horizontal plate 11, a measuring gauge 13 fixedly mounted on the surface of the mounting plate 12, a moving block 14 slidably connected inside the horizontal plate 11, and a threaded rod 15 rotatably connected inside the horizontal plate 11. A rotating head 16 is fixedly installed at one end; a sliding rod 17 is fixedly installed on the inner side of the horizontal plate 11; a moving block 18 is slidably connected to the inner side of the reference frame 2; a threaded rod 19 is rotatably connected to the inner side of the reference frame 2; a rotating head 20 is fixedly installed at one end of the threaded rod 19; a sliding rod 21 is fixedly installed on the inner side of the reference frame 2; a connecting block 5 is slidably connected to a connecting groove 6; a positioning block 7 is slidably connected to a positioning groove 8; a fixing bolt 9 is threadedly connected to a screw hole 10; the upper surface of the moving block 14 is fixedly connected to the lower surface of the mounting plate 12; a threaded rod 15 is threadedly connected to the moving block 14; the moving block 14 is slidably connected to the sliding rod 17; the side of the moving block 18 is fixedly connected to the side of the horizontal plate 11; a threaded rod 19 is threadedly connected to the moving block 18; and the moving block 18 is slidably connected to the sliding rod 21.

[0018] In this embodiment, before aligning one end of the universal coupling to be calibrated with the reference flange 4, the corresponding reference flange 4 is selected according to the coupling flange specifications, and its connecting block 5 is inserted into the connecting groove 6 of the mounting sleeve 3, so that the positioning block 7 is simultaneously embedded into the positioning groove 8, achieving initial alignment. Then, the fixing bolts 9 are tightened to screw them into the screw holes 10 on the connecting block 5, completing the quick locking of the reference flange 4. This structure allows for the replacement of the reference flange 4 without special tools, significantly improving the tooling's adaptability to different models of universal couplings. During calibration, rotating the rotating head 16 drives the threaded rod 15 to rotate, causing the moving block 14 to slide laterally along the slide rod 17, thereby adjusting the left and right positions of the mounting plate 12 and the measuring instrument 13. At the same time, rotating the rotating head 20 drives the threaded rod 19 to rotate, causing the moving block 18 to move back and forth along the slide rod 21, which in turn causes the horizontal plate 11 to move back and forth as a whole. This achieves two-dimensional precise positioning of the measuring instrument 13 in the horizontal plane, ensuring that the probe is accurately aligned with the detection point at the output end of the coupling, and effectively guaranteeing the accuracy and repeatability of axial alignment deviation detection.

[0019] Example 2: As Figures 1-5 As shown, a vertical plate 22 is fixedly installed on the surface of the reference frame 2. A support plate 23 is provided on the side of the vertical plate 22. An arc-shaped lifting plate 24 is fixedly installed on the surface of the support plate 23. A movable block 25 is slidably connected inside the vertical plate 22. A threaded rod 26 is rotatably connected inside the vertical plate 22. A rocker wheel 27 is fixedly installed at one end of the threaded rod 26. A sliding rod 28 is fixedly installed on the inner side of the vertical plate 22. A bearing 29 is fixedly installed on the inner side of the vertical plate 22. The side of the movable block 25 is fixedly connected to the side of the support plate 23. The threaded rod 26 is threadedly connected to the movable block 25. The movable block 25 is slidably connected to the sliding rod 28. One end of the threaded rod 26 is fixedly connected to the inner ring of the bearing 29.

[0020] In this embodiment, when the universal coupling needs to be installed or disassembled, the operator rotates the rocker wheel 27. The rocker wheel 27 drives the threaded rod 26 to rotate around the axis of the bearing 29. Since the threaded rod 26 is threadedly connected to the movable block 25 and the movable block 25 is slidably engaged with the slide rod 28, the movable block 25 moves smoothly and linearly along the slide rod 28, thereby driving the support plate 23 and the arc-shaped lifting plate 24 to rise and fall synchronously. The curved contour of the arc-shaped lifting plate 24 matches the outer circle of the intermediate shaft of the coupling, which can provide stable support for it during assembly, preventing sagging, shaking or offset caused by its own weight. This makes it easier to align the input and output flanges with the bolt holes and facilitates the insertion of connecting bolts. This lifting structure not only reduces the burden of manual lifting but also significantly improves assembly efficiency and alignment accuracy, and is especially suitable for on-site installation and maintenance of large or heavy universal couplings.

[0021] The working principle of this embodiment is as follows: First, select the corresponding reference flange 4 according to the flange specifications of the universal coupling to be calibrated. Align the connecting block 5 on the side of the reference flange 4 with the connecting groove 6 on the mounting sleeve 3 and insert it. Simultaneously, embed the positioning block 7 on the connecting block 5 into the positioning groove 8 of the mounting sleeve 3 to complete the initial positioning. Then, tighten the fixing bolts 9 on the side of the mounting sleeve 3, screwing them into the screw holes 10 on the connecting block 5 to securely lock the reference flange 4 onto the mounting sleeve 3. Next, align and fix one end of the universal coupling with the reference flange 4. Then, rotate the second rotating head 20 to drive the threaded rod 19 to rotate, thereby causing the moving block 18 to slide back and forth along the sliding rod 21, moving the entire horizontal plate 11 back and forth on the reference frame 2. Then, rotate the first rotating head 16 to drive the threaded rod 15 to rotate, making it align with the mounting plate 12. The fixedly connected movable block 14 slides laterally along the slide rod 17, thereby adjusting the position of the mounting plate 12 and the measuring gauge 13 in the left and right directions. Through the adjustment in the above two directions, the probe of the measuring gauge 13 is accurately aligned with the detection position of the output flange at the other end of the universal coupling. After completing the centering deviation measurement, if the coupling needs to be disassembled, the rocker wheel 27 is rotated. The rocker wheel 27 drives the threaded rod 26 to rotate around the bearing 29. The threaded rod 26 pushes the movable block 25, which is threaded to it, to move smoothly along the slide rod 28, thereby driving the support plate 23 and the arc-shaped lifting plate 24 to rise and fall synchronously. The arc-shaped lifting plate 24 supports the middle shaft section of the coupling, providing stable support and preventing it from sagging or shaking due to its own weight. This makes it easy for the operator to accurately align the bolt holes of the input and output flanges and smoothly insert the connecting bolts to complete the assembly or disassembly operation.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A universal coupling axial alignment deviation calibration fixture, comprising a base (1), characterized in that: A reference frame (2) is fixedly installed on the upper surface of the base (1). A mounting sleeve (3) is fixedly installed on the side of the reference frame (2). A reference flange (4) is provided on the side of the mounting sleeve (3). A connecting block (5) is fixedly connected to the side of the reference flange (4). A connecting groove (6) is opened on the side of the mounting sleeve (3). A positioning block (7) is fixedly connected to the surface of the connecting block (5). A positioning groove (8) is opened on the side of the mounting sleeve (3). A fixing bolt (9) is threadedly connected to the side of the mounting sleeve (3). A screw hole (10) is opened on the side of the connecting block (5). A horizontal plate (11) is provided on the side of the reference frame (2). The surface of the horizontal plate (11) slides. A mounting plate (12) is connected, and a measuring instrument (13) is fixedly installed on the surface of the mounting plate (12). A moving block (14) is slidably connected inside the horizontal plate (11). A threaded rod (15) is rotatably connected inside the horizontal plate (11). A rotating head (16) is fixedly installed at one end of the threaded rod (15). A sliding rod (17) is fixedly installed on the inner side of the horizontal plate (11). A moving block (28) is slidably connected on the inner side of the reference frame (2). A threaded rod (29) is rotatably connected on the inner side of the reference frame (2). A rotating head (20) is fixedly installed at one end of the threaded rod (29). A sliding rod (21) is fixedly installed on the inner side of the reference frame (2).

2. The universal coupling axial alignment deviation calibration fixture according to claim 1, characterized in that: The connecting block (5) is slidably connected to the connecting groove (6), the positioning block (7) is slidably connected to the positioning groove (8), and the fixing bolt (9) is threadedly connected to the screw hole (10).

3. The universal coupling axial alignment deviation calibration fixture according to claim 1, characterized in that: The upper surface of the first movable block (14) is fixedly connected to the lower surface of the mounting plate (12), the first threaded rod (15) is threadedly connected to the first movable block (14), and the first movable block (14) is slidably connected to the first sliding rod (17).

4. The universal coupling axial alignment deviation calibration fixture according to claim 1, characterized in that: The side of the second movable block (18) is fixedly connected to the side of the horizontal plate (11), the second threaded rod (19) is threadedly connected to the second movable block (18), and the second movable block (18) is slidably connected to the second sliding rod (21).

5. A universal coupling axial alignment deviation calibration fixture according to any one of claims 1 to 4, characterized in that: A vertical plate (22) is fixedly installed on the surface of the reference frame (2). A support plate (23) is provided on the side of the vertical plate (22). An arc-shaped lifting plate (24) is fixedly installed on the surface of the support plate (23). A moving block three (25) is slidably connected inside the vertical plate (22). A threaded rod three (26) is rotatably connected inside the vertical plate (22). A rocker wheel (27) is fixedly installed at one end of the threaded rod three (26). A sliding rod three (28) is fixedly installed on the inner side of the vertical plate (22). A bearing (29) is fixedly installed on the inner side of the vertical plate (22).

6. The universal coupling axial alignment deviation calibration fixture according to claim 5, characterized in that: The side of the movable block three (25) is fixedly connected to the side of the support plate (23), and the threaded rod three (26) is threadedly connected to the movable block three (25).

7. The universal coupling axial alignment deviation calibration fixture according to claim 5, characterized in that: The movable block three (25) is slidably connected to the slide rod three (28), and one end of the threaded rod three (26) is fixedly connected to the inner ring of the bearing (29).

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