Ball screw accuracy detection device

Abstract

The utility model discloses a ball screw accuracy detection device, which belongs to the technical field of ball screw detection and comprises a base, a first support plate and a pair of guide rails are fixedly connected to the top of the base respectively, and a first chuck is rotatably connected to one side of the first support plate. By arranging the detection mechanism, whether the lead screw nut is bent or not can be detected, when the lead screw nut is bent, a signal lamp of the detection mechanism is turned on, the bending problem of the lead screw nut can be accurately recognized, unqualified products are prevented from flowing into subsequent links, workers can visually find the problem through the signal lamp, and the detection efficiency is improved; by arranging the first supporting plate, the guide rail, the first chuck, the second supporting plate and the second chuck, ball screws of different specifications can be detected, one end of each ball screw is fixed to the first chuck on the first supporting plate, the other end of each ball screw is fixed through the second chuck on the second supporting plate, the second supporting plate can slide on the guide rail, and the universality of the detection device is greatly improved; the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of ball screw testing technology, specifically a ball screw accuracy testing device. Background Technology

[0002] A ball screw consists of a screw, a nut, and balls. It is a key component for achieving high-precision transmission. A ball screw accuracy testing device is crucial to ensuring its performance, especially in detecting bending. This facilitates strict quality control and ensures stable operation of the ball screw in precision equipment.

[0003] Existing ball screw accuracy testing devices have the following shortcomings: the existing ball screw accuracy testing devices have low testing accuracy and the test results are not intuitive. The low accuracy cannot accurately judge the slight bending of the ball screw, resulting in unqualified products flowing into the next process. The unintuitive test results will prolong the testing time and reduce the testing efficiency. Summary of the Invention

[0004] To overcome the above-mentioned defects, this utility model provides a ball screw accuracy testing device, which solves the problems of low detection accuracy and unintuitive detection results of existing ball screw accuracy testing devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ball screw accuracy detection device, comprising a base, a support plate and a pair of guide rails fixedly connected to the top of the base, a chuck rotatably connected to one side of the support plate, a servo motor fixedly connected to the side of the support plate away from the chuck, the output end of the servo motor passing through the support plate and rotatably connected thereto, the output end of the servo motor being coaxially fixedly connected to the chuck, a slide plate slidably connected to each guide rail, a detection mechanism being provided on the top of the slide plate, a support plate rotatably connected to each guide rail, and a chuck rotatably connected to one side of the support plate rotatably connected;

[0006] The detection mechanism includes a housing, which is fixedly connected to the top of the slide plate. A second servo motor is fixedly connected to the top of the housing. The output end of the second servo motor passes through the housing and is rotatably connected to it. A threaded rod is coaxially fixedly connected to the output end of the second servo motor. The bottom of the threaded rod is rotatably connected to the slide plate. A nut is threaded onto the threaded rod. A first connecting rod is fixedly connected to the outer periphery of the nut. A through groove is provided on one side of the housing. The through groove is adapted to the first connecting rod. A lifting plate is fixedly connected to one end of the first connecting rod. A contact component and a detection component are respectively provided on the top of the lifting plate.

[0007] The contact assembly includes a pair of limiting rods, each of which is fixedly connected to the top of the lifting plate. Each limiting rod is slidably connected to a limiting sleeve. A spring is sleeved on the outer periphery of both the limiting sleeve and the limiting rod. A contact plate is fixedly connected to the top of the limiting sleeve. A connecting rod two is fixedly connected to the bottom of the contact plate. A baffle is fixedly connected to one side of the connecting rod two.

[0008] The detection assembly includes a control box and a vertical plate. Both the control box and the vertical plate are fixedly connected to the top of the lifting plate. A pair of laser receivers are provided on one side of the control box, and an indicator light is fixedly connected to the top of the control box. A pair of laser emitters are provided on the side of the vertical plate near the baffle.

[0009] As a further embodiment of this utility model: the control box is equipped with a processing module and a control module respectively, each laser receiver is connected to the processing module, the processing module is connected to the control module, and the control module is connected to the signal light.

[0010] As a further embodiment of this utility model, a limit bar is fixedly connected to one end of each guide rail.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, by setting up a detection mechanism, can detect whether the lead screw nut is bent. When the lead screw nut is bent, the indicator light of the detection mechanism will light up, which can accurately identify the bending problem of the lead screw nut, prevent unqualified products from flowing into subsequent processes, and the indicator light allows workers to intuitively discover the problem, thus improving detection efficiency.

[0013] This utility model, by setting up a support plate 1, a guide rail, a chuck 1, a support plate 2, and a chuck 2, can test ball screws of different specifications. One end of the ball screw is fixed to the chuck 1 on the support plate 1, and the other end is fixed by the chuck 2 on the support plate 2. The support plate 2 can slide on the guide rail, which greatly improves the versatility of the testing device and reduces costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the shell of this utility model;

[0016] Figure 3 This is a schematic diagram showing the cross-section of the limiting rod, the limiting sleeve, and the spring of this utility model.

[0017] In the diagram: 1. Base; 2. Support plate one; 3. Guide rail; 4. Chuck one; 5. Servo motor one; 6. Slide plate; 7. Support plate two; 8. Chuck two; 9. Housing; 10. Servo motor two; 11. Threaded rod; 12. Nut; 13. Connecting rod one; 14. Lifting plate; 15. Limiting rod; 16. Limiting sleeve; 17. Spring; 18. Contact plate; 19. Connecting rod two; 20. Baffle; 21. Control box; 22. Vertical plate; 23. Laser receiver; 24. Signal light; 25. Laser emitter; 26. Limiting strip. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figures 1-3 As shown, this utility model provides a technical solution:

[0020] A ball screw accuracy testing device includes a base 1. A support plate 2 and a pair of guide rails 3 are fixedly connected to the top of the base 1. A chuck 4 is rotatably connected to one side of the support plate 2. A servo motor 5 is fixedly connected to the side of the support plate 2 away from the chuck 4. The output end of the servo motor 5 passes through the support plate 2 and is rotatably connected to it. The output end of the servo motor 5 is coaxially fixedly connected to the chuck 4. A slide plate 6 is slidably connected to each guide rail 3. A testing mechanism is provided on the top of each slide plate 6. A support plate 2 7 is slidably connected to the support plate 2 2. A chuck 2 8 is rotatably connected to one side of the support plate 2 2. The support plate 2 2 7 can slide on the guide rail 3. One end of the ball screw is fixed to the chuck 4 on the support plate 2 2, and the other end is fixed by the chuck 2 8 on the support plate 2 2 7. The servo motor 5 is started. The servo motor 5 drives the ball screw to rotate through the chuck 4. The chuck 2 8 rotates with the ball screw. The slide plate 6 can slide freely on the guide rail 3. The detection mechanism can detect the bending of different parts of the ball screw.

[0021] The testing mechanism includes a housing 9, which is fixedly connected to the top of the slide plate 6. A servo motor 10 is fixedly connected to the top of the housing 9. The output end of the servo motor 10 passes through the housing 9 and is rotatably connected to it. A threaded rod 11 is coaxially fixedly connected to the output end of the servo motor 10. The bottom of the threaded rod 11 is rotatably connected to the slide plate 6. A nut 12 is threaded onto the threaded rod 11. A connecting rod 13 is fixedly connected to the outer periphery of the nut 12. A through groove is provided on one side of the housing 9, which is adapted to the connecting rod 13. One end of the connecting rod 13... A lifting plate 14 is fixedly connected. A contact component and a detection component are respectively provided on the top of the lifting plate 14. When the servo motor 10 is started, the output end of the servo motor 10 drives the threaded rod 11 to rotate, so that the nut 12 can move along the threaded rod 11. The nut 12 drives the lifting plate 14 to move through the connecting rod 13. The connecting rod 13 slides in the through groove on one side of the housing 9, effectively preventing the nut 12 from rotating with the threaded rod 11. The lifting plate 14 drives the contact component to contact the ball screw. The detection component can detect whether the ball screw is bent.

[0022] The contact assembly includes a pair of limiting rods 15, each of which is fixedly connected to the top of the lifting plate 14. Each limiting rod 15 is slidably connected to a limiting sleeve 16. A spring 17 is sleeved on the outer periphery of both the limiting sleeve 16 and the limiting rod 15. A contact plate 18 is fixedly connected to the top of the limiting sleeve 16, and a connecting rod 29 is fixedly connected to the bottom of the contact plate 18. A baffle 20 is fixedly connected to one side of the connecting rod 29. The spring 17 pushes the contact plate 18 to make the limiting sleeve 16 and the limiting rod 15 fit tightly together. When the contact plate 18 contacts the ball screw, the contact plate 18 drives the limiting sleeve 16 to slide down the outer periphery of the limiting rod 15. At the same time, the spring 17 is compressed, and the contact plate 18 drives the baffle 20 to move together through the connecting rod 29.

[0023] The detection assembly includes a control box 21 and a vertical plate 22. Both the control box 21 and the vertical plate 22 are fixedly connected to the top of the lifting plate 14. A pair of laser receivers 23 are provided on one side of the control box 21, and an indicator light 24 is fixedly connected to the top of the control box 21. A pair of laser emitters 25 are provided on the side of the vertical plate 22 near the baffle 20. The control box 21 contains a processing module and a control module. Each laser receiver 23 is connected to the processing module, the processing module is connected to the control module, and the control module is connected to the indicator light 24. The laser emitter 25 can emit lasers, and the laser receiver 23 can receive laser signals. When both laser receivers 23 receive lasers, the indicator light 24 remains off. When only one laser receiver 23 receives lasers, the laser receiver 23 sends a signal to the control module, and the control module controls the indicator light 24 to light up through the signal.

[0024] Each guide rail 3 is fixedly connected to one end with a limit strip 26, which can prevent the support plate 2 from slipping off the guide rail 3.

[0025] The working principle of this utility model is as follows:

[0026] The support plate 2 7 can slide on the guide rail 3. One end of the ball screw is fixed on the chuck 4 on the support plate 2, and the other end is fixed by the chuck 2 8 on the support plate 2 7. Different specifications of ball screws can be fixed, which greatly improves the versatility of the testing device and reduces costs.

[0027] In the initial state, the spring 17 pushes the contact plate 18 to make the limiting sleeve 16 and the limiting rod 15 fit tightly together, and the baffle 20 blocks one laser signal. When only one laser receiver 23 receives the laser, the laser receiver 23 sends a signal to the control module, and the control module controls the indicator light 24 to light up through the signal.

[0028] Servo motor 10 is started. The output of servo motor 10 drives the threaded rod 11 to rotate, so that nut 12 can move along the threaded rod 11. Nut 12 drives the lifting plate 14 to move through connecting rod 13, so that contact plate 18 and ball screw are in contact. Contact plate 18 drives limit sleeve 16 to slide down around limit rod 15. At the same time, spring 17 is compressed. Contact plate 18 drives baffle 20 to move down together through connecting rod 19 until baffle 20 is between the lasers of a pair of laser emitters 25. At this time, when both laser receivers 23 receive the laser, the pair of laser receivers 23 send a signal to the control module. The control module controls the indicator light 24 to turn off through the signal.

[0029] During testing, servo motor 5 is started, and servo motor 5 drives the ball screw to rotate through chuck 4. Chuck 8 rotates with the ball screw. When the ball screw bends, the contact plate 18 that is in close contact with the ball screw moves, causing the baffle 20 to move up or down, thus blocking a laser signal. The indicator light 24 lights up, allowing workers to visually identify the problem and improve testing efficiency.

[0030] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A ball screw accuracy testing device, comprising a base (1), characterized in that: The base (1) is fixedly connected to a support plate (2) and a pair of guide rails (3) respectively. A chuck (4) is rotatably connected to one side of the support plate (2). A servo motor (5) is fixedly connected to the side of the support plate (2) away from the chuck (4). The output end of the servo motor (5) passes through the support plate (2) and is rotatably connected to it. The output end of the servo motor (5) is coaxially fixedly connected to the chuck (4). A slide plate (6) is slidably connected to each guide rail (3). A detection mechanism is provided on the top of the slide plate (6). A support plate (7) is slidably connected to each guide rail (3). A chuck (8) is rotatably connected to one side of the support plate (7). The detection mechanism includes a housing (9), which is fixedly connected to the top of the slide plate (6). A servo motor (10) is fixedly connected to the top of the housing (9). The output end of the servo motor (10) passes through the housing (9) and is rotatably connected to it. A threaded rod (11) is coaxially fixedly connected to the output end of the servo motor (10). The bottom of the threaded rod (11) is rotatably connected to the slide plate (6). A nut (12) is threaded onto the threaded rod (11). A connecting rod (13) is fixedly connected to the outer periphery of the nut (12). A through groove is provided on one side of the housing (9). The through groove is adapted to the connecting rod (13). A lifting plate (14) is fixedly connected to one end of the connecting rod (13). A contact component and a detection component are respectively provided on the top of the lifting plate (14). The contact assembly includes a pair of limiting rods (15), each of the limiting rods (15) is fixedly connected to the top of the lifting plate (14), and each of the limiting rods (15) is slidably connected to a limiting sleeve (16). A spring (17) is sleeved on the outer periphery of the limiting sleeve (16) and the limiting rod (15). A contact plate (18) is fixedly connected to the top of the limiting sleeve (16), and a connecting rod two (19) is fixedly connected to the bottom of the contact plate (18). A baffle (20) is fixedly connected to one side of the connecting rod two (19). The detection assembly includes a control box (21) and a vertical plate (22). The control box (21) and the vertical plate (22) are both fixedly connected to the top of the lifting plate (14). A pair of laser receivers (23) are provided on one side of the control box (21). A signal light (24) is fixedly connected to the top of the control box (21). A pair of laser emitters (25) are provided on the side of the vertical plate (22) near the baffle (20).

2. The ball screw accuracy testing device according to claim 1, characterized in that: The control box (21) is equipped with a processing module and a control module. Each laser receiver (23) is connected to the processing module, the processing module is connected to the control module, and the control module is connected to the signal light (24).

3. The ball screw accuracy testing device according to claim 2, characterized in that: Each of the guide rails (3) is fixedly connected to one end with a limit bar (26).

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