A coaxiality laser detection device for bearings

Abstract

This utility model discloses a coaxiality laser testing device for bearings, belonging to the technical field of coaxiality laser testing devices. It includes a worktable, a laser emitting fixture, and a photosensitive position sensor. Support legs are fixed at each of the four corners of the worktable's bottom, and mounting bases are installed at the bottom of each support leg. A centering and positioning mechanism is installed at the bottom of the worktable. This device features a centering and positioning mechanism that allows two clamping pads to clamp the bearing synchronously, ensuring precise alignment between the centerline of the two clamping pads and the bearing's axis. This avoids errors caused by insecure or misaligned fixture installation, providing a stable benchmark for laser measurement and making the test results more reliable. A lifting and adjusting mechanism allows for convenient adjustment of the vertical height of the mounting pads and the laser emitting fixture, and locking the height after adjustment is simple, adapting to the height adjustment requirements of coaxiality laser testing for bearings.

Description

Technical Field

[0001] This utility model relates to the field of coaxiality laser testing devices, and in particular to a coaxiality laser testing device for bearings. Background Technology

[0002] A bearing coaxiality laser testing device is a high-precision device that uses laser technology to precisely measure the alignment of bearing bores or shaft centerlines. The device typically has a laser emitter fixed at one end, and a receiver measuring the center position within multiple bores to assess concentricity.

[0003] However, existing coaxiality laser testing devices are not easy to ensure precise alignment between the bearing fixture centerline and the bearing axis during use. Errors may occur due to insecure fixture installation or misalignment, affecting the accuracy of the measurement results. Therefore, those skilled in the art have provided a coaxiality laser testing device for bearings to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a laser detection device for the coaxiality of bearings, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a coaxiality laser detection device for bearings, comprising a worktable, a laser emitting fixture, and a photosensitive position sensor. Support legs are fixed at the four corners of the bottom of the worktable, and mounting bases are installed at the bottom of the support legs. A centering and positioning mechanism is installed at the bottom of the worktable, and a lifting and adjusting mechanism is fixed at the top of the worktable. A laser emitting fixture is installed at the top of the lifting and adjusting mechanism, and a photosensitive position sensor is installed at the top of the mounting base.

[0006] The centering and positioning mechanism includes a fixed bracket, an electric push rod fixed to one side of the fixed bracket, a movable plate fixed to one end of the output shaft of the electric push rod, two transmission frames rotatably connected to the bottom of the movable plate via a rotating shaft, a moving plate rotatably connected to the end of the transmission frame away from the movable plate via a rotating shaft, a sliding block fixed to the bottom of the moving plate, a guide sleeve installed at the bottom of the worktable, a guide rail installed at the bottom of the guide sleeve, and a clamping pad fixed to the top of the moving plate.

[0007] As a further improvement of this utility model: a bearing is placed on the top of the workbench, and a retaining ring is fixed to the inner wall of the bearing, and a photosensitive position sensor is fixed to the outer side of the retaining ring.

[0008] As a further improvement of this utility model: a limit slider is installed at the bottom of the movable plate, and a limit sleeve is fixed at the bottom of the worktable.

[0009] As a further improvement of this utility model: the limiting sleeve is slidably connected to the limiting slider through the sliding groove, and the fixed bracket is fixedly connected to the worktable.

[0010] As a further improvement of this utility model: the sliding block and the guide rail are sliding fit components, and the guide sleeve has a limiting through groove inside to accommodate the movement of the clamping pad.

[0011] As a further embodiment of this utility model: the lifting and adjusting mechanism includes a fixed base, two fixed threaded rods are fixed to the top of the fixed base, a mounting pad is movably sleeved on the outer side of the fixed threaded rod, a limit pad is fixed to the top of the fixed threaded rod, two positioning nuts are threaded to the outer side of each fixed threaded rod, and a metal handle is fixed to the top of the mounting pad.

[0012] As a further improvement of this utility model: a laser emitting fixture that penetrates through the bottom of the mounting pad is fixed to the top of the mounting pad, and the fixed base and the worktable are fixedly connected.

[0013] As a further improvement of this utility model: the corresponding surface of the positioning nut is in close contact with the outer side of the mounting pad, and the outer side of the metal handle is provided with anti-slip texture.

[0014] This utility model provides a laser detection device for the coaxiality of bearings, which has the following advantages compared with the prior art:

[0015] 1. This design discloses a laser detection device for the coaxiality of bearings. The device is equipped with a centering and positioning mechanism, which enables two clamping pads to clamp the bearing synchronously, thereby ensuring that the center line between the two clamping pads is precisely aligned with the bearing's axis. This avoids errors caused by loose or misaligned fixtures, provides a stable reference for laser measurement, and makes the detection results more reliable.

[0016] 2. The bearing coaxiality laser inspection device designed in this paper has a lifting and adjusting mechanism, which makes it easy to adjust the vertical height of the mounting pad and the laser emitting fixture. Moreover, locking the height after adjustment is relatively simple and can meet the height adjustment requirements of bearing coaxiality laser inspection. Attached Figure Description

[0017] Figure 1 A three-dimensional view of a laser detection device for coaxiality of bearings;

[0018] Figure 2 This is a schematic diagram of the centering and positioning mechanism in a laser detection device for the coaxiality of bearings.

[0019] Figure 3 Another perspective view of a laser detection device for coaxiality of bearings;

[0020] Figure 4 This is a schematic diagram of the lifting and adjusting mechanism in a coaxiality laser testing device for bearings.

[0021] In the diagram: 1. Workbench; 2. Support leg; 3. Mounting base; 4. Centering and positioning mechanism; 41. Fixed bracket; 42. Electric push rod; 43. Movable plate; 44. Transmission frame; 45. Moving plate; 46. Sliding block; 47. Guide rail; 48. Guide sleeve; 49. Clamping pad; 410. Limiting slider; 411. Limiting sleeve; 5. Lifting and adjusting mechanism; 51. Fixed base; 52. Fixed threaded rod; 53. Mounting pad; 54. Limiting pad; 55. Positioning nut; 56. Metal handle; 6. Laser emitting fixture; 7. Photosensitive position sensor. Detailed Implementation

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

[0023] Please see Figures 1-4 This utility model provides a technical solution for a coaxiality laser detection device for bearings: including a worktable 1, a laser emitting fixture 6 and a photosensitive position sensor 7. Support legs 2 are fixed at the four corners of the bottom of the worktable 1, and mounting bases 3 are installed at the bottom of the support legs 2. A centering and positioning mechanism 4 is installed at the bottom of the worktable 1. A lifting and adjusting mechanism 5 is fixed at the top of the worktable 1. The laser emitting fixture 6 is installed at the top of the lifting and adjusting mechanism 5, and the photosensitive position sensor 7 is installed at the top of the mounting base 3.

[0024] The centering and positioning mechanism 4 includes a fixed bracket 41. An electric push rod 42 is fixed to one side of the fixed bracket 41. A movable plate 43 is fixed to one end of the output shaft of the electric push rod 42. Two transmission frames 44 are rotatably connected to the bottom of the movable plate 43 via a rotating shaft. A moving plate 45 is rotatably connected to the end of the transmission frame 44 away from the movable plate 43 via a rotating shaft. A sliding block 46 is fixed to the bottom of the moving plate 45. A guide sleeve 48 is installed at the bottom of the worktable 1. A guide rail 47 is installed at the bottom of the guide sleeve 48. The top of the moving plate 45 is fixed. There is a clamping pad 49, a bearing is placed on the top of the worktable 1, and a retaining ring is fixed on the inner wall of the bearing. A photosensitive position sensor 7 is fixed on the outer side of the retaining ring. A limit slider 410 is installed at the bottom of the movable plate 43. A limit sleeve 411 is fixed at the bottom of the worktable 1. The limit sleeve 411 is slidably connected to the limit slider 410 through a slide groove. The fixed bracket 41 is fixedly connected to the worktable 1. The sliding block 46 and the guide rail 47 are sliding fit components. The guide sleeve 48 has a limit through groove inside to accommodate the movement of the clamping pad 49.

[0025] The lifting and adjusting mechanism 5 includes a fixed base 51. Two fixed threaded rods 52 are fixed to the top of the fixed base 51. A mounting pad 53 is movably sleeved on the outside of the fixed threaded rods 52. A limit pad 54 is fixed to the top of the fixed threaded rods 52. Two positioning nuts 55 are threaded to the outside of each fixed threaded rod 52. A metal handle 56 is fixed to the top of the mounting pad 53. A laser emitting fixture 6 penetrating through the bottom of the mounting pad 53 is fixed to the top of the mounting pad 53. The fixed base 51 and the worktable 1 are fixedly connected. The corresponding surfaces of the positioning nuts 55 are in close contact with the outside of the mounting pad 53. The outside of the metal handle 56 is provided with anti-slip texture.

[0026] The working principle of this utility model is as follows: This device is equipped with a centering and positioning mechanism 4. When performing coaxiality laser testing on bearings, the bearing is placed on the worktable 1, specifically between the corresponding surfaces of the two clamping pads 49. Then, the electric push rod 42 is activated, and the output shaft of the electric push rod 42 drives the movable plate 43 to move, allowing the limiting slider 410 at the bottom of the movable plate 43 to slide within the limiting sleeve 411. At this time, the movable plate 43 pulls one end of the transmission frame 44 to move, causing the other end of the transmission frame 44 to pull the two moving plates 45 to move in opposite directions. The two movable plates 45 can drive the corresponding clamping pads 49 to move synchronously, so that the two clamping pads 49 clamp the bearing synchronously, thereby ensuring that the center line between the two clamping pads 49 is precisely aligned with the bearing's axis, avoiding errors caused by loose or misaligned fixture installation, providing a stable benchmark for laser measurement, and making the detection results more reliable. Then, the laser emitting fixture 6 is activated. A photosensitive position sensor 7 is fixed to the inner wall of the bearing by a retaining ring, and a photosensitive position sensor 7 is also installed on the top of the mounting base 3. When the bearing rotates, the laser emitting fixture... The light beam emitted by the laser emitter 6 illuminates the photosensitive position sensor 7 on the inner wall of the bearing, forming a light spot. If the bearing has a coaxiality error, the position of this light spot on the photosensitive position sensor 7 will change in real time with rotation, thereby measuring the center position and evaluating the concentricity, facilitating the coaxiality laser detection of the bearing. With the lifting adjustment mechanism 5, when the vertical height of the mounting pad 53 and the laser emitting fixture 6 needs to be adjusted, simply rotate the positioning nut 55 on the outside of the fixing threaded rod 52, moving the corresponding surface of the positioning nut 55 away from the mounting pad 53 to release the height lock of the mounting pad 53. Then, hold the metal handle 56 and move the mounting pad 53 outside the fixing threaded rod 52 to a suitable height. Rotate the positioning nut 55 again, making the corresponding surface of the positioning nut 55 press against the mounting pad 53, thus locking the height of the mounting pad 53 again. This facilitates the adjustment of the vertical height of the mounting pad 53 and the laser emitting fixture 6, and the locking after height adjustment is relatively simple, adapting to the height adjustment requirements of coaxiality laser detection of bearings.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A laser detection device for coaxiality of bearings, comprising a worktable (1), a laser emitting fixture (6), and a photosensitive position sensor (7), characterized in that, The workbench (1) has four support legs (2) fixed at the bottom corners. The support legs (2) are equipped with mounting bases (3). The workbench (1) is equipped with a centering and positioning mechanism (4). The workbench (1) is equipped with a lifting and adjusting mechanism (5) fixed at the top. The lifting and adjusting mechanism (5) is equipped with a laser emitting fixture (6) at the top. The mounting base (3) is equipped with a photosensitive position sensor (7) at the top. The centering and positioning mechanism (4) includes a fixed bracket (41), an electric push rod (42) is fixed on one side of the fixed bracket (41), a movable plate (43) is fixed at one end of the output shaft of the electric push rod (42), two transmission frames (44) are rotatably connected to the bottom of the movable plate (43) through a rotating shaft, a moving plate (45) is rotatably connected to the end of the transmission frame (44) away from the movable plate (43) through a rotating shaft, a sliding block (46) is fixed at the bottom of the moving plate (45), a guide sleeve (48) is installed at the bottom of the worktable (1), a guide rail (47) is installed at the bottom of the guide sleeve (48), and a clamping pad (49) is fixed at the top of the moving plate (45).

2. The bearing coaxiality laser testing device according to claim 1, characterized in that, A bearing is placed on the top of the workbench (1), and a retaining ring is fixed to the inner wall of the bearing. A photosensitive position sensor (7) is fixed to the outer side of the retaining ring.

3. The bearing coaxiality laser detection device according to claim 1, characterized in that, The bottom of the movable plate (43) is equipped with a limit slider (410), and the bottom of the worktable (1) is fixed with a limit sleeve (411).

4. The bearing coaxiality laser detection device according to claim 3, characterized in that, The limiting sleeve (411) is slidably connected to the limiting slider (410) through the sliding groove, and the fixed bracket (41) is fixedly connected to the worktable (1).

5. The bearing coaxiality laser detection device according to claim 1, characterized in that, The sliding block (46) and the guide rail (47) are sliding fit components, and the guide sleeve (48) has a limiting through groove inside to accommodate the movement of the clamping pad (49).

6. The bearing coaxiality laser testing device according to claim 1, characterized in that, The lifting and adjusting mechanism (5) includes a fixed seat (51), two fixed threaded rods (52) are fixed on the top of the fixed seat (51), a mounting pad (53) is movably sleeved on the outside of the fixed threaded rod (52), a limit pad (54) is fixed on the top of the fixed threaded rod (52), two positioning nuts (55) are threaded to the outside of each fixed threaded rod (52), and a metal handle (56) is fixed on the top of the mounting pad (53).

7. The bearing coaxiality laser testing device according to claim 6, characterized in that, The top of the mounting pad (53) is fixed with a laser emitting fixture (6) that extends through its bottom, and the fixed base (51) and the worktable (1) are fixedly connected.

8. The bearing coaxiality laser testing device according to claim 7, characterized in that, The corresponding surface of the positioning nut (55) is in close contact with the outside of the mounting pad (53), and the outside of the metal handle (56) is provided with anti-slip texture.

Images