A positioning and detecting device for bearing ring flaw detection

Abstract

The utility model discloses a positioning detection device for bearing ring flaw detection belongs to bearing ring production equipment technical field, including bearing material board, eddy current flaw detection probe and positioning detection mechanism, and bearing material board is equipped with carousel, and the carousel top surface places bearing ring, and eddy current flaw detection probe is located bearing ring one side, and positioning detection mechanism includes positioning rod, detector, photoelectric switch and compression wheel, and two positioning rods are symmetrically arranged on bearing ring end face top, and the bottom of positioning rod is equipped with hollow part, and the hollow part is equipped with spring, and the bottom of spring is equipped with connecting seat, and compression wheel sets up in connecting seat bottom, and the lateral wall of hollow part sets up first sliding slot along the vertical direction, and first sliding slot slidingly connects sliding block, and one side of sliding block is connected with connecting seat, and the other side is connected with detector, and photoelectric switch is aligned with detector. The utility model discloses utilize photoelectric switch and detector cooperation and detect positioning deviation to reduce the risk of eddy current flaw detection probe damage.

Description

Technical Field

[0001] This utility model belongs to the technical field of bearing ring production equipment, and specifically relates to a positioning and detection device for bearing ring flaw detection. Background Technology

[0002] Bearing rings are annular parts of radial rolling bearings with one or more raceways. As precision instruments, bearing rings have extremely high quality requirements, needing to be structurally undamaged and effectively deployed in practical applications. The manufacturing process of bearing rings can be divided into three stages: turning, heat treatment, and grinding. Among these, the grinding stage is the most crucial, as its quality directly affects the accuracy and final service life of the bearing rings. Grinding burns are the most common machining defect during grinding. Currently, commonly used flaw detection methods include magnetic particle testing and eddy current testing. However, existing eddy current testing devices lack effective protection for the eddy current probe. Positioning deviations caused by bearing locating cores, bearing turntables, or product dimensions can easily damage the eddy current probe, adversely affecting the bearing production process. Utility Model Content

[0003] The purpose of this invention is to provide a positioning and detection device for flaw detection of bearing rings, aiming to solve the problems existing in the prior art mentioned above.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A positioning and detection device for flaw detection of bearing races includes a bearing material plate and an eddy current testing probe. The bearing material plate has a turntable, and the bearing race is placed on the top surface of the turntable. The device includes a positioning and detection mechanism, which comprises a positioning rod, a detector, a photoelectric switch, and a clamping wheel. Two positioning rods are symmetrically arranged vertically above the end face of the bearing race. The bottom end of each positioning rod has a hollow portion with a spring. A connecting seat is located at the bottom of the spring. The clamping wheel is located at the bottom of the connecting seat. A first sliding groove is vertically arranged on the side wall of the hollow portion, and a slider is slidably connected to the first sliding groove. One side of the slider is connected to the connecting seat, and the detector is located on the other side of the slider. A bracket is provided between the photoelectric switch and the positioning rod, aligning the photoelectric switch and the detector.

[0006] Furthermore, the bracket includes a support plate arranged horizontally and an adjustment plate arranged vertically. One end of the support plate is connected to a positioning rod, and the other end is connected to the adjustment plate. The adjustment plate is provided with a second sliding groove in the vertical direction, and a sliding rod is slidably connected to the second sliding groove. A photoelectric switch is connected to one side of the sliding rod, and a first nut is provided on the other side. The support plate is provided with a first stepper motor. A first lead screw is provided in the vertical direction on one side of the adjustment plate. The first lead screw is drivenly connected to the first stepper motor, and the first nut is threadedly drivenly connected to the first lead screw.

[0007] Furthermore, the positioning detection mechanism also includes a guide rail, a positioning platform, and a cylinder. The guide rail is vertically arranged on one side of the positioning platform, and the positioning platform is slidably connected to the guide rail. The cylinder is used to drive the positioning platform to move vertically. The positioning platform is symmetrically arranged with two sets of third sliding grooves, and the third sliding grooves are slidably connected to sliding sleeves. The upper part of the positioning rod passes through the sliding sleeve, and the sliding sleeve is used to adjust the distance between the two positioning rods.

[0008] Furthermore, the positioning platform is provided with a accommodating cavity and a second stepper motor. A second lead screw is inserted horizontally inside the accommodating cavity. The length direction of the second lead screw is the same as the extension direction of the third slide groove. The accommodating cavity is connected to the third slide groove. The second stepper motor is connected to the second lead screw in a driving connection. The threads on both sides of the second lead screw at its middle position are opposite, and a second nut is provided on each side of the rod. The second nut is connected to the second lead screw in a threaded driving connection. The second nut is connected to the aligned slide sleeve.

[0009] Compared with the shortcomings and deficiencies of the prior art, the present invention has the following beneficial effects.

[0010] 1. This utility model provides a positioning and detection device for bearing ring flaw detection. A cylinder drives a positioning rod to move vertically via a positioning platform, causing a clamping wheel to press against the end face of the bearing ring. The detector moves with the slider and connecting seat to the middle position of the first sliding groove. The photoelectric switch is adjusted to align with the detector, and the photoelectric switch outputs a signal. When the end face of the bearing ring floats up and down during rotation, and the photoelectric switch and detector become misaligned, the signal is interrupted, and flaw detection stops. This utility model utilizes the alignment and cooperation between the photoelectric switch and the detector, with the detector floating up and down with the clamping wheel via the connecting seat, to detect positioning fluctuations, thereby reducing the risk of damage to the eddy current flaw detection probe.

[0011] 2. The first stepper motor adjusts the position of the photoelectric switch through the threaded transmission structure of the first lead screw and the first nut, facilitating precise alignment between the photoelectric switch and the detector; the second stepper motor synchronously drives the positioning rods on both sides to move in the same or opposite directions through the threaded transmission structure of the second lead screw and the second nut, thereby adjusting the distance between the positioning rods. This is suitable for bearing rings of different specifications and sizes, and has high adjustment efficiency and accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a positioning and detection device for flaw detection of bearing rings according to this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the hollow part of the positioning rod in this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the photoelectric switch in this utility model, which is fixed by a positioning screw and a positioning nut.

[0015] Figure 4 This is a schematic diagram of the bracket adjustment mechanism in this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the support platform with a second lead screw in this utility model.

[0017] In the diagram: 1. Bearing plate; 2. Turntable; 3. Bearing ring; 4. Positioning detection mechanism; 5. Positioning rod; 6. Photoelectric switch; 7. Pressure wheel; 8. Bracket; 9. Support plate; 10. Adjusting plate; 11. Second slide rail; 12. Detector; 13. Eddy current flaw detector probe; 14. Guide rail; 15. Positioning platform; 16. Third slide rail; 17. Hollow part; 18. Spring; 19. First slide rail; 20. Connecting seat; 21. Slider; 22. First stepper motor; 23. First lead screw; 24. First nut; 25. Slide rod; 26. Second lead screw; 27. Second stepper motor; 28. Second nut; 29. ​​Sliding sleeve; 30. Positioning screw; 31. Positioning nut; 32. Receiving cavity. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Reference Figures 1-5A positioning and detection device for bearing ring flaw detection includes a bearing plate 1 and a positioning and detection mechanism 4. The bearing plate 1 is equipped with a turntable 2, which supports the bearing ring 3. The turntable 2 is connected to a motor, which drives the turntable 2 to rotate, thereby rotating the bearing ring 3 for detection. The positioning and detection mechanism 4 includes a photoelectric switch 6, a detector 12, an eddy current flaw detection probe 13, and positioning rods 5 symmetrically arranged above the end faces of the bearing rings 3 on both sides. The eddy current flaw detection probe 13 is located on the outer side of the bearing ring 3. The bottom end of the positioning rod 5 is provided with a hollow part 17, in which a spring 18 is embedded. The upper end of the spring 18 is connected to the inner end face of the hollow part 17, and the lower end of the spring 18 is provided with a connecting seat 20. The bottom of the connecting seat 20 is provided with a pressure wheel 7. The lower side wall of the hollow part 17 is provided with a first sliding groove 19, which is arranged vertically. The detector 12 is connected to the side wall of the connecting seat 20 through a slider 21. 1. The detector 12 is located outside the first slide groove 19. The clamping wheel 7 is used to clamp the end face of the bearing ring 3. The photoelectric switch 6 is connected to the positioning rod 5 through the bracket 8. The bracket 8 includes a support plate 9 and an adjusting plate 10. The support plate 9 is set in the horizontal direction and one end of the support plate 9 is connected to the positioning rod 5. The adjusting plate 10 is set in the vertical direction at the other end of the support plate 9. The photoelectric switch 6 is set on the adjusting plate 10 and is aligned with the detector 12. Specifically, the adjusting plate 10 has a second slide groove 11 opened in the vertical direction. The photoelectric switch 6 is provided with a positioning screw 30 on one side. The positioning screw 30 passes through the second slide groove 11 perpendicular to the adjusting plate 10. The positioning screw 30 is threadedly connected to the positioning nut 31. The height position of the photoelectric switch 6 is adjusted along the second slide groove 11. The positioning nut 31 is tightened so that the positioning nut 31 and the photoelectric switch 6 cooperate to clamp the adjusting plate 10 to fix the position of the photoelectric switch 6.

[0020] In one embodiment, the bracket 8 is provided with an adjustment mechanism for adjusting the position of the photoelectric switch 6 so that the photoelectric switch 6 is precisely aligned with the detector 12. The adjustment mechanism includes a first stepper motor 22, a first lead screw 23, and a slide rod 25. The first stepper motor 22 is located on the top of the support plate 9. The first lead screw 23 is arranged vertically and located on one side of the adjustment plate 10. The bottom of the adjustment plate 10 is provided with an extension for auxiliary support of the first lead screw 23. The bottom end of the first lead screw 23 is rotatably connected to the extension and the support plate 9. The top end of the first lead screw 23 is drivenly connected to the output end of the first stepper motor 22. The slide rod 25 is slidably connected to the second slide groove 11. One side of the slide rod 25 is connected to the photoelectric switch 6, and the other side is provided with a first nut 24. The first nut 24 is threadedly connected to the first lead screw 23. The slide rod 25 is provided with a locking nut 33 threadedly connected to it. The locking nut 33 is located between the adjustment plate 10 and the first lead screw 23 and is used to fix the position of the slide rod. The first stepper motor 22 drives the first lead screw 23 to rotate, which in turn drives the photoelectric switch 6 to move vertically through the first nut 24 and the slide rod 25 to adjust the height position of the photoelectric switch 6. After adjustment, the locking nut 33 is rotated so that the locking nut 33 abuts against the adjusting plate 10 to limit the slide rod 25, thus keeping the height position of the photoelectric switch 6 fixed.

[0021] In one embodiment, the positioning detection mechanism 4 further includes a guide rail 14, a positioning platform 15, and a cylinder (not shown in the figure). The positioning platform 15 is located above the bearing ring 3. The guide rail 14 is vertically arranged on one side of the positioning platform 15. The positioning platform 15 is slidably connected to the guide rail 14. The upper part of the positioning rod 5 is vertically inserted through the positioning platform 15. The cylinder is used to drive the positioning platform 15 to move vertically along the guide rail 14, thereby driving the positioning rod 5 to move through the positioning platform 15 to position the bearing ring 3.

[0022] The positioning platform 15 is symmetrically equipped with a third slide groove 16. A sliding sleeve 29 is provided on the upper part of the positioning rod 5. The sliding sleeve 29 is slidably connected to the third slide groove 16. The positioning rod 5 moves along the third slide groove 16 via the sliding sleeve 29 to adjust the distance between the two positioning rods 5, thereby adapting to bearing rings 3 of different specifications and sizes. A fastening nut can be provided between the sliding sleeve 29 and the positioning platform 15 to fix the position of the sliding sleeve 29.

[0023] In one embodiment, a receiving cavity 32 is horizontally arranged inside the positioning platform 15, and a second lead screw 26 is arranged inside the receiving cavity 32. The length direction of the second lead screw 26 is the same as the extension direction of the third slide groove 16. The two ends of the second lead screw 26 are rotatably connected to the corresponding end faces of the receiving cavity 32. The receiving cavity 32 is connected to the third slide groove 16. The positioning platform 15 is equipped with a second stepper motor 27, which is drivenly connected to one end of the second lead screw 26. The threads on both sides of the second lead screw 26 at its middle position are arranged in opposite directions, and second nuts 28 are symmetrically sleeved on both sides of the rod. The second nuts 28 are threadedly driven to the second lead screw 26 and are connected to the aligned sliding sleeve 29. By using the second stepper motor 27 to drive the second lead screw 26 to rotate, the positioning rods 5 on both sides are moved synchronously through the second nuts 28 and the sliding sleeve 29, which helps to improve the adjustment efficiency and convenience of the positioning rods 5.

[0024] When using the positioning and detection device for bearing ring flaw detection, the bearing ring 3 is placed on the top surface of the turntable 2. The cylinder drives the positioning platform 15 to move along the guide rail 14, so that the clamping wheel 7 abuts against the end face of the bearing ring 3. The spring is compressed 18, moving the detector 12 to the middle position of the first slide groove 19. The first stepper motor 22 is started, and the first lead screw 23 and the first nut 24 are threadedly driven, thereby driving the photoelectric switch 6 to move through the slide rod 25, so that the photoelectric switch 6 is aligned with the detector 12. The position of the photoelectric switch is fixed by the locking nut 33. The photoelectric switch 6 detects the detector 12 and switches to output a signal. The motor is started, and the turntable 2 drives the bearing ring 3 to rotate. The eddy current flaw detection probe 13 is driven by a 2-axis servo motor to perform the detection (not shown in the figure). During the testing process, when the bearing positioning core or turntable 2 rotates and floats up and down, the pressure wheel 7 compresses the spring 18 through the connecting seat 20, and the detector 12 floats up and down with the connecting seat 20. When the floating amplitude is too large, the photoelectric switch 6 cannot detect the detector 12, the signal output is interrupted, and the flaw detection stops, thereby achieving the purpose of protecting the eddy current flaw detection probe 13 and reducing the risk of damage to the eddy current flaw detection probe 13.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 positioning and detection device for flaw detection of bearing rings, comprising a bearing plate (1) and an eddy current flaw detection probe (13), wherein the bearing plate (1) is provided with a turntable (2), and a bearing ring (3) is placed on the top surface of the turntable (2), characterized in that, The device includes a positioning detection mechanism (4), which includes a positioning rod (5), a detector (12), a photoelectric switch (6), and a pressure wheel (7). Two positioning rods (5) are symmetrically arranged vertically above the end face of the bearing ring (3). The bottom end of the positioning rod (5) is provided with a hollow part (17). The hollow part (17) is provided with a spring (18). The bottom of the spring (18) is provided with a connecting seat (20). The pressure wheel (7) is located at the bottom of the connecting seat (20). The side wall of the hollow part (17) is provided with a first sliding groove (19) vertically. The first sliding groove (19) is slidably connected to a slider (21). One side of the slider (21) is connected to the connecting seat (20). The detector (12) is located on the other side of the slider (21). A bracket (8) is provided between the photoelectric switch (6) and the positioning rod (5). The photoelectric switch (6) and the detector (12) are aligned.

2. The positioning and detection device for bearing ring flaw detection as described in claim 1, characterized in that, The bracket (8) includes a support plate (9) arranged in the horizontal direction and an adjustment plate (10) arranged in the vertical direction. One end of the support plate (9) is connected to the positioning rod (5) and the other end is connected to the adjustment plate (10). The adjustment plate (10) is provided with a second slide groove (11) in the vertical direction. The second slide groove (11) is slidably connected to a slide rod (25). One side of the slide rod (25) is connected to a photoelectric switch (6) and the other side is provided with a first nut (24). The support plate (9) is provided with a first stepper motor (22). One side of the adjustment plate (10) is provided with a first lead screw (23) in the vertical direction. The first lead screw (23) is connected to the first stepper motor (22) in a transmission connection. The first nut (24) is connected to the first lead screw (23) in a threaded transmission connection.

3. The positioning and detection device for bearing ring flaw detection as described in claim 1, characterized in that, The positioning detection mechanism (4) also includes a guide rail (14), a positioning platform (15) and a cylinder. The guide rail (14) is vertically arranged on one side of the positioning platform (15). The positioning platform (15) is slidably connected to the guide rail (14). The cylinder is used to drive the positioning platform (15) to move vertically. The positioning platform (15) is symmetrically arranged with two sets of third slide grooves (16). The third slide grooves (16) are slidably connected to the slide sleeves (29). The upper part of the positioning rod (5) passes through the slide sleeves (29). The slide sleeves (29) are used to adjust the distance between the two positioning rods (5).

4. The positioning and detection device for bearing ring flaw detection as described in claim 3, characterized in that, The positioning platform (15) is provided with a accommodating cavity (32) and a second stepper motor (27). A second lead screw (26) is inserted horizontally inside the accommodating cavity (32). The length direction of the second lead screw (26) is the same as the extension direction of the third slide (16). The accommodating cavity (32) is connected to the third slide (16). The second stepper motor (27) is connected to the second lead screw (26) in a driving connection. The threads on both sides of the second lead screw (26) are opposite, and the two sides of the rod are respectively provided with a second nut (28). The second nut (28) is connected to the second lead screw (26) in a threaded driving connection. The second nut (28) is connected to the aligned slide sleeve (29).

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