Coaxiality measuring device for columnar part

Abstract

The utility model relates to the technical field of coaxiality measurement, and discloses a columnar part coaxiality measuring device, which comprises a base and a driving motor I. The upper surface of the base is connected with a laser measuring machine in a sliding manner, the output end of the driving motor I is connected with a columnar part body, the outer wall of the columnar part body is provided with a limiting block I, and the limiting block I is connected with the laser measuring machine. The lower surface of the first limiting block is fixedly connected to the upper surface of the base, the upper surface of the base is fixedly connected with a positioning block, the outer wall of the positioning block is fixedly connected with a second driving motor, and the output end of the second driving motor is connected with a first rotating block. According to the utility model, the first driving motor is started to drive the columnar part body to rotate, and then the second driving motor is started to drive the first rotating block to rotate, so that the effects of reducing errors caused by insufficient sample data through continuous and uninterrupted measurement and ensuring the accuracy and reliability of measurement results can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of coaxiality measurement technology, and in particular to a coaxiality measuring device for columnar parts. Background Technology

[0002] Coaxiality refers to the degree to which the measured axis is on the same straight line relative to the reference axis. Geometrically speaking, it requires that the measured axis coincide with the reference axis. Ideally, the coaxiality error is zero. Coaxiality error will cause unbalanced forces when the equipment is running, thereby causing vibration and noise. Therefore, coaxiality measurement is an essential part of parts production.

[0003] A search revealed Chinese Patent Publication No. CN218155932U, which discloses a shape inspection platform, comprising: a horizontal platform surface, a slide rod fixedly installed on the top of the horizontal platform surface, and a fixing device disposed on the outer wall of the slide rod. By setting the fixing device, pressing a T-shaped button pushes a push rod, which, through a limiting relationship with a limiting slide column, causes a sliding push block to move away from the outer wall of the slide rod. The limiting slide groove allows the positioning slider to move to adjust the height of the fixed dial indicator. Releasing the T-shaped button allows the sliding push block to reset and be fixed by the elastic force of a spring, thus facilitating height adjustment. A rotating device is provided, and a rotating shaft is fixed on a support rod by a clamp. By rotating a turntable, the rotating shaft is rotated, causing the fixed part to rotate to facilitate the measurement of coaxiality.

[0004] However, this method yields limited data and cannot measure most areas of the test part, resulting in biased measurement results. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coaxiality measuring device for columnar parts, which aims to improve the problem of measurement deviation caused by the limited data obtained from existing coaxiality measurements.

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

[0007] A coaxiality measuring device for a columnar part includes a base and a drive motor. A laser measuring machine is slidably connected to the upper surface of the base. The output end of the drive motor is connected to the columnar part body. A limit block is provided on the outer wall of the columnar part body. The lower surface of the limit block is fixedly connected to the upper surface of the base. A positioning block is fixedly connected to the upper surface of the base. A drive motor is fixedly connected to the outer wall of the positioning block. A rotating block is connected to the output end of the drive motor. A rotating block is rotatably connected to the outer wall of the rotating block. An L-shaped block is rotatably mounted on the outer wall of the rotating block. A sliding assembly is provided on the lower surface of the laser measuring machine. The sliding assembly is used to limit the sliding trajectory of the laser measuring machine.

[0008] Preferably, the sliding assembly includes a slider, the upper surface of which is fixedly connected to the lower surface of the laser measuring machine, and a groove is provided inside the base, through which the outer wall of the slider is slidably connected to the inside of the base.

[0009] Preferably, the outer wall of the L-shaped block is slidably connected to the inner wall of the positioning block, and the outer wall of the L-shaped block is fixedly connected to the outer wall of the laser measuring machine.

[0010] Preferably, a second limiting block is provided on the upper surface of the first limiting block, the outer wall of the columnar part body is provided on the inner wall of the second limiting block, a first mounting block is fixedly connected to the outer wall of the second limiting block, and a second mounting block is fixedly connected to the outer wall of the first limiting block.

[0011] Preferably, the outer wall of the second mounting block is fixedly connected to the third mounting block, and the outer wall of the third mounting block is rotatably connected to the third rotating block.

[0012] Preferably, the inner wall of the rotating block three is rotatably connected to a connecting block; the outer wall of the rotating block three is disposed on the outer wall of the mounting block two; and the outer wall of the connecting block is disposed on the side wall of the mounting block one.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In this utility model, by turning on the first drive motor to drive the columnar part body to rotate, and then turning on the second drive motor to drive the rotating block to rotate, the laser measuring machine measures the coaxiality of various parts on the surface of the columnar part body. This achieves the effect of reducing errors caused by insufficient sample data through continuous and uninterrupted measurement, and ensuring the accuracy and reliability of the measurement results.

[0015] 2. In this utility model, by installing the second limiting block above the first limiting block, and then pulling the third rotating block to make it rotate, the connecting block is driven by the third rotating block to be stuck on the side wall of the first mounting block. This can ensure the stability of the columnar part body during measurement, avoid deviation of measurement data due to shaking or displacement, and improve the accuracy of measurement results. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the coaxiality measuring device for columnar parts proposed in this utility model.

[0017] Figure 2 This is a partial structural diagram of the rotating block of the coaxiality measuring device for columnar parts proposed in this utility model.

[0018] Figure 3 This is a partial structural diagram of the slider of the coaxiality measuring device for columnar parts proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the three-part structure of the rotating block of the coaxiality measuring device for columnar parts proposed in this utility model.

[0020] Legend:

[0021] 1. Base; 2. Drive motor one; 3. Columnar part body; 4. Limiting block one; 5. Laser measuring machine; 6. Positioning block; 7. Drive motor two; 8. Rotating block one; 9. Rotating block two; 10. L-shaped block; 11. Limiting block two; 12. Mounting block one; 13. Mounting block two; 14. Mounting block three; 15. Rotating block three; 16. Connecting block; 17. Slider; 18. Slide groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 - Figure 3 This embodiment exemplarily demonstrates a coaxiality measuring device for a columnar part, including a base 1 and a drive motor 2. A laser measuring machine 5 is slidably connected to the upper surface of the base 1. The output end of the drive motor 2 is connected to the columnar part body 3. A limit block 4 is provided on the outer wall of the columnar part body 3. The lower surface of the limit block 4 is fixedly connected to the upper surface of the base 1. A positioning block 6 is fixedly connected to the upper surface of the base 1. A drive motor 7 is fixedly connected to the outer wall of the positioning block 6. A rotating block 8 is connected to the output end of the drive motor 7. A rotating block 9 is rotatably connected to the outer wall of the rotating block 8. An L-shaped block 10 is rotatably connected to the outer wall of the rotating block 9. A sliding component is provided on the lower surface of the laser measuring machine 5. The sliding component is used to limit the sliding trajectory of the laser measuring machine 5.

[0024] Specifically, by starting drive motor 2, the cylindrical part body 3 is driven to rotate inside limit block 4. Then, drive motor 7 is started to drive rotating block 8 to rotate. Subsequently, rotating block 9 rotates under the drive of rotating block 8. Then, L-shaped block 10 slides on the inner wall of drive motor 7 under the drive of rotating block 9. Since laser measuring machine 5 and L-shaped block 10 are fixedly connected, laser measuring machine 5 slides on the surface of base 1 under the drive of L-shaped block 10. At the same time, laser measuring machine 5 slides along a specified trajectory under the action of sliding component. Laser measuring machine 5 measures the coaxiality of various points on the surface of cylindrical part body 3. Laser measuring machine 5 is existing technology and will not be described in detail here. This can achieve continuous and uninterrupted measurement, accurately determine the actual coaxiality of irregular parts, and reduce the error caused by single-point measurement or a small number of point measurements.

[0025] Reference Figure 3 The sliding assembly includes a slider 17, the upper surface of which is fixedly connected to the lower surface of the laser measuring machine 5. A groove 18 is provided inside the base 1, and the outer wall of the slider 17 is slidably connected to the inside of the base 1 through the groove 18.

[0026] Specifically, since the laser measuring machine 5 is fixedly connected to the slider 17, the slider 17 slides inside the base 1 through the slide groove 18 under the drive of the laser measuring machine 5.

[0027] Reference Figure 1 and Figure 2 The outer wall of the L-shaped block 10 is slidably connected to the inner wall of the positioning block 6, and the outer wall of the L-shaped block 10 is fixedly connected to the outer wall of the laser measuring machine 5.

[0028] Specifically, positioning block 6 is used to restrict the movement trajectory of L-shaped block 10.

[0029] Reference Figure 1 and Figure 4 Limiting block 14 has a limiting block 2 11 on its upper surface. The outer wall of the columnar part body 3 is set on the inner wall of limiting block 2 11. Mounting block 12 is fixedly connected to the outer wall of limiting block 2 11. Mounting block 2 13 is fixedly connected to the outer wall of limiting block 14. Mounting block 3 14 is fixedly connected to the outer wall of mounting block 2 13. Rotating block 3 15 is rotatably connected to the outer wall of mounting block 3 14. Connecting block 16 is rotatably connected to the inner wall of rotating block 3 15. The outer wall of rotating block 3 15 is set on the outer wall of mounting block 2 13. The outer wall of connecting block 16 is set on the side wall of mounting block 12.

[0030] Specifically, by aligning and installing the second limiting block 11 with the first limiting block 4, the third rotating block 15 is pulled to rotate around the third mounting block 14. The third mounting block 14 provides a fulcrum for the rotation of the third mounting block 15. Then, the connecting block 16 is engaged with the side wall of the first mounting block 12 under the drive of the third rotating block 15. At this time, the first mounting block 12 is connected to the second mounting block 13. Since the first mounting block 12 is fixedly connected to the second limiting block 11, and the first limiting block 4 is fixedly connected to the second mounting block 13, the second limiting block 11 is connected to the first limiting block 4. At this time, the first limiting block 4 and the second limiting block 11 wrap around one end of the columnar part body 3 so that the columnar part body 3 will not shift during measurement. This can ensure the stability of the columnar part body 3 during measurement and avoid errors in the measurement data.

[0031] Working principle: By turning on the drive motor 2, the cylindrical part body 3 is driven to rotate. Then, the drive motor 7 drives the rotating block 8 to rotate. At this time, the rotating block 9 rotates under the drive of the rotating block 8. Then, the L-shaped block 10 slides under the drive of the rotating block 9. Then, the laser measuring machine 5 slides under the drive of the L-shaped block 10. Subsequently, the slider 17 slides under the drive of the laser measuring machine 5. The laser measuring machine 5 measures the coaxiality of various points on the surface of the cylindrical part body 3, thereby achieving continuous and uninterrupted measurement. Compared with single-point measurement or measurement based on only a few points, it reduces the error caused by insufficient sample data and ensures the accuracy and reliability of the measurement results.

[0032] By installing the second limiting block 11 above the first limiting block 4, and then pulling the third rotating block 15 to make it rotate, the connecting block 16 is locked onto the side wall of the first mounting block 12 under the drive of the third rotating block 15. At this time, the first mounting block 12 is connected to the second mounting block 13, and the second limiting block 11 is connected to the first limiting block 4. At this time, the first limiting block 4 and the second limiting block 11 wrap around one end of the columnar part body 3 so that the part body 3 will not shift during measurement. This can ensure that the columnar part body 3 remains stable during measurement, avoid deviation of measurement data due to shaking or displacement, and improve the accuracy of measurement results.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 coaxiality measuring device for columnar parts, comprising a base (1) and a drive motor (2), characterized in that: A laser measuring machine (5) is slidably connected to the upper surface of the base (1). The output end of the drive motor (2) is connected to the part body (3). A limit block (4) is provided on the outer wall of the part body (3). The lower surface of the limit block (4) is fixedly connected to the upper surface of the base (1). A positioning block (6) is fixedly connected to the upper surface of the base (1). A drive motor (7) is fixedly connected to the outer wall of the positioning block (6). A rotating block (8) is connected to the output end of the drive motor (7). A rotating block (9) is rotatably connected to the outer wall of the rotating block (8). An L-shaped block (10) is rotatably connected to the outer wall of the rotating block (9). A sliding component is provided on the lower surface of the laser measuring machine (5). The sliding component is used to limit the sliding trajectory of the laser measuring machine (5).

2. The coaxiality measuring device for columnar parts according to claim 1, characterized in that: The sliding assembly includes a slider (17), the upper surface of which is fixedly connected to the lower surface of the laser measuring machine (5), and a groove (18) is provided inside the base (1). The outer wall of the slider (17) is slidably connected to the inside of the base (1) through the groove (18).

3. The coaxiality measuring device for columnar parts according to claim 1, characterized in that: The outer wall of the L-shaped block (10) is slidably connected to the inner wall of the positioning block (6), and the outer wall of the L-shaped block (10) is fixedly connected to the outer wall of the laser measuring machine (5).

4. The coaxiality measuring device for columnar parts according to claim 1, characterized in that: The upper surface of the limiting block 1 (4) is provided with limiting block 2 (11), the outer wall of the columnar part body (3) is provided on the inner wall of limiting block 2 (11), the outer wall of limiting block 2 (11) is fixedly connected with mounting block 1 (12), and the outer wall of limiting block 1 (4) is fixedly connected with mounting block 2 (13).

5. The coaxiality measuring device for columnar parts according to claim 4, characterized in that: The outer wall of the second mounting block (13) is fixedly connected to the third mounting block (14), and the outer wall of the third mounting block (14) is rotatably connected to the third rotating block (15).

6. The coaxiality measuring device for columnar parts according to claim 5, characterized in that: The inner wall of the rotating block three (15) is rotatably connected to the connecting block (16); the outer wall of the rotating block three (15) is set on the outer wall of the mounting block two (13); the outer wall of the connecting block (16) is set on the side wall of the mounting block one (12).

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