Defect detection device for gear machining

Abstract

The utility model discloses a defect detection device for gear processing, which relates to the technical field of gear detection, and comprises a movable turntable, auxiliary turntables are movably connected on the movable turntable in an annular array mode, an ultrasonic flaw detector is arranged on one side above the movable turntable, and the auxiliary turntables are arranged on the movable turntable. The side surface of the ultrasonic flaw detector is fixedly connected with an ultrasonic display; the movable rotary table comprises a center disc, a center gear in transmission connection with the auxiliary rotary table is integrally arranged at the bottom of the center disc, mounting grooves corresponding to the auxiliary rotary table are formed in the center disc in an annular array mode, and a through hole is correspondingly formed in the bottom of each mounting groove; according to the utility model, the gear motor drives the central disc to rotate and drives the auxiliary rotary table to revolve, so that gears pass through the bottom of the ultrasonic probe successively, each gear is ensured to be detected, the phenomenon of missing detection is prevented, the gears are continuously detected along with the rotation of the central disc, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of gear inspection technology, specifically a defect detection device for gear processing. Background Technology

[0002] Gears are a common part in machining. There are many ways to manufacture gears, such as casting, forging, cutting, and powder metallurgy. In order to prevent defects such as tooth surface cracks, tooth surface pitting, and tooth profile errors from occurring after gear production, the manufactured gears need to be inspected. The defect detection of gears is directly related to the quality and performance of the gears, as well as the reliability of the entire mechanical transmission system.

[0003] Currently, most equipment for detecting defects in gears uses ultrasonic testing, which utilizes the propagation characteristics of ultrasonic waves within gears to detect internal defects. When ultrasonic waves encounter a defect, they produce phenomena such as reflection and refraction. By analyzing the characteristics of the reflected waves, the location and size of the defect can be determined.

[0004] However, in practice, it has been noted that ultrasonic testing requires manual holding of the ultrasonic testing head to scan the outside of the gear. Since manual testing requires checking each gear individually, the efficiency of gear testing is low, and there are areas that are missed during manual testing. Therefore, the accuracy of the test is greatly affected, and the test results are also affected, resulting in a decrease in accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a defect detection device for gear processing. This device comprises a planetary gear system formed by the meshing of a central gear, planetary gears, and internal tooth grooves. Combined with a central disk and a workpiece placement disk, the device rotates while the gears move, preventing missed detections and improving detection efficiency and effectiveness. This addresses the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A defect detection device for gear processing includes a movable turntable, on which auxiliary turntables are movably connected in a circular array, and an ultrasonic flaw detector is provided on one side above the movable turntable, with an ultrasonic display fixedly connected to the side of the ultrasonic flaw detector.

[0008] The movable turntable includes a central disc, and the bottom of the central disc is integrally provided with a central gear that is connected to the auxiliary turntable for transmission. The central disc has mounting grooves in a circular array corresponding to the auxiliary turntable, and each mounting groove has a through hole at its bottom.

[0009] As a further technical solution of this utility model, a drive shaft is integrally provided at the bottom center position of the central disk, and a geared motor is connected to the bottom of the drive shaft.

[0010] As a further technical solution of this utility model, the auxiliary turntable includes a workpiece placement tray placed in the mounting groove. The bottom of the workpiece placement tray is integrally provided with a rotating shaft that is movably connected to the through hole, and the rear end of the rotating shaft is fixedly connected to a planetary gear through the through hole.

[0011] As a further technical solution of this utility model, the planetary gears are arranged in a ring array on the side of the central gear, and the planetary gears mesh with the central gear.

[0012] The outer side of the planetary gear is also connected to an outer limiting ring. The inner side of the outer limiting ring is provided with an inner circular tooth groove in a ring array, and the planetary gear meshes with the inner circular tooth groove in the outer limiting ring.

[0013] As a further technical solution of this utility model, the ultrasonic flaw detector includes an arc-shaped outer shell located above one side of the central disk, and ultrasonic probes are fixedly connected in a ring array on the arc-shaped outer shell.

[0014] As a further technical solution of this utility model, both ends of the ultrasonic probe are welded with fixed hanging ears, and a mounting column is fixedly connected to the bottom of each fixed hanging ear.

[0015] As a further technical solution of this utility model, a track disk is also fixedly connected to the drive shaft, and a limit slide rail is provided at the bottom of the track disk, and a movable lever is also provided on the side of the track disk.

[0016] As a further technical solution of this utility model, the movable lever includes a support base, both sides of which are welded with extension fixing plates, and the ends of the extension fixing plates are provided with holes. A limiting groove is provided on the inner side of the support base, and a sliding plate is slidably connected in the limiting groove.

[0017] As a further technical solution of this utility model, an L-shaped curved plate is fixedly connected to the end of the sliding plate, and an arc-shaped guide plate is fixedly connected to the end of the L-shaped curved plate away from the sliding plate, and the sliding plate is located above the workpiece placement tray.

[0018] As a further technical solution of this utility model, the bottom of the sliding plate is fixedly connected with an extension column, and the end of the extension column near the track plate is integrally provided with a sliding column, and the end of the sliding column is inserted into the inner side of the limiting slide rail.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, the geared motor drives the central disk to rotate, which in turn drives the auxiliary turntable to revolve, so that the gears pass through the bottom of the ultrasonic probe one after another, ensuring that each gear is tested and preventing missed detections. Furthermore, as the central disk rotates, continuous testing of the gears is achieved, improving testing efficiency.

[0021] 2. In this utility model, while the rotating turntable is rotating, the central gear at the bottom meshes with the planetary gear, driving the planetary gear to rotate. In conjunction with the outer limit ring meshing with the outer side of the planetary gear, the planetary gear rotates with the central turntable, while driving the workpiece placement plate to rotate. This ensures that the ultrasonic probe can detect all positions of the gear, further preventing missed scans and improving the detection effect and accuracy.

[0022] 3. In this utility model, the drive shaft rotates while driving the track disk to rotate. The sliding column slides inside the limit slide rail. The sliding column drives the arc guide plate through the sliding plate and L-shaped bending plate to move the gear that has been inspected on the workpiece placement plate to the discharge hopper. It cooperates with the inclined surface of the discharge hopper to realize the automatic separation of the gear on the upper part of the workpiece placement plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0024] Figure 2 This utility model Figure 1 Another perspective view.

[0025] Figure 3 This utility model Figure 1 A schematic diagram of the bottom structure.

[0026] Figure 4 This utility model Figure 1 A partial structural diagram.

[0027] Figure 5 This utility model Figure 4 A schematic diagram of the bottom structure.

[0028] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.

[0029] Figure 7 This is a three-dimensional structural diagram of the movable turntable in this utility model.

[0030] Figure 8 This utility model Figure 7 A schematic diagram of the bottom structure.

[0031] Figure 9 This is a three-dimensional structural diagram of the auxiliary turntable in this utility model.

[0032] Figure 10 This is a three-dimensional structural diagram of the outer limiting ring in this utility model.

[0033] Figure 11 This is a three-dimensional structural diagram of the movable lever in this utility model.

[0034] Figure 12 This utility model Figure 11 A schematic diagram of the bottom structure.

[0035] Figure 13 This utility model Figure 12 A magnified view of a portion of the image.

[0036] Figure 14 This is a three-dimensional structural diagram of the ultrasonic flaw detector in this utility model.

[0037] Figure 15 This utility model Figure 14 A schematic diagram of the bottom structure.

[0038] In the picture:

[0039] Support base-1, movable turntable-2, center plate-21, mounting groove-22, through hole-23, drive shaft-24, center gear-25, auxiliary turntable-3, workpiece placement plate-31, anti-slip groove-32, planetary gear-33, ultrasonic flaw detector-4, arc-shaped shell-41, fixed hanging ear-42, mounting column-43, ultrasonic probe-44, ultrasonic display-5, discharge hopper-6, movable lever-7, support base-71, limit slide groove-72, extension fixing plate-73, sliding plate-74, L-shaped bent plate-75, arc-shaped guide plate-76, extension column-77, sliding column-78, outer limit ring-8, inner circular tooth groove-81, track plate-9, limit slide rail-91, fixed bracket-10, reduction motor-11. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figure 1-15This utility model provides a defect detection device for gear processing, including a movable turntable 2, an auxiliary turntable 3 movably connected in a circular array on the movable turntable 2, an ultrasonic flaw detector 4 is provided on one side above the movable turntable 2, and an ultrasonic display 5 is fixedly connected to the side of the ultrasonic flaw detector 4.

[0042] The movable turntable 2 includes a central disk 21. The bottom of the central disk 21 is integrally provided with a central gear 25 that is connected to the auxiliary turntable 3 for transmission. The central disk 21 is provided with mounting grooves 22 in a ring array corresponding to the auxiliary turntable 3. Each mounting groove 22 is provided with a through hole 23 at its bottom.

[0043] In this embodiment, a drive shaft 24 is integrally provided at the bottom center of the central disk 21, and a reduction motor 11 is connected to the bottom of the drive shaft 24.

[0044] In this embodiment, the auxiliary turntable 3 includes a workpiece placement tray 31 placed in the mounting groove 22. The bottom of the workpiece placement tray 31 is integrally provided with a rotating shaft that is movably connected to the through hole 23, and the rear end of the rotating shaft is fixedly connected to a planetary gear 33 through the through hole 23.

[0045] In this embodiment, the planetary gears 33 are arranged in a ring array on the side of the central gear 25, and the planetary gears 33 and the central gear 25 mesh with each other.

[0046] The outer side of the planetary gear 33 is also connected to an outer limiting ring 8. The inner side of the outer limiting ring 8 is provided with an inner circular tooth groove 81 in a ring array, and the planetary gear 33 meshes with the inner circular tooth groove 81 in the outer limiting ring 8.

[0047] In this embodiment, the ultrasonic flaw detector 4 includes an arc-shaped outer shell 41 located above one side of the central disk 21, and ultrasonic probes 44 are fixedly connected to the arc-shaped outer shell 41 in a ring array.

[0048] In this embodiment, both ends of the ultrasonic probe 44 are welded with fixed lugs 42, and each fixed lug 42 is fixedly connected to a mounting post 43 at its bottom.

[0049] In this embodiment, a track disk 9 is also fixedly connected to the drive shaft 24, and a limit slide rail 91 is provided at the bottom of the track disk 9. A movable lever 7 is also provided on the side of the track disk 9.

[0050] In this embodiment, the movable lever 7 includes a support base 71, with extension fixing plates 73 welded to both sides of the support base 71. The ends of the extension fixing plates 73 are provided with holes. A limiting groove 72 is provided on the inner side of the support base 71, and a sliding plate 74 is slidably connected in the limiting groove 72.

[0051] In this embodiment, an L-shaped bent plate 75 is fixedly connected to the end of the sliding plate 74, and an arc-shaped guide plate 76 is fixedly connected to the end of the L-shaped bent plate 75 away from the sliding plate 74. The sliding plate 74 is located above the workpiece placement tray 31.

[0052] In this embodiment, the bottom of the sliding plate 74 is fixedly connected to an extension column 77, and the end of the extension column 77 near the track disk 9 is integrally provided with a sliding column 78, and the end of the sliding column 78 is inserted into the inner side of the limiting slide rail 91.

[0053] By adopting the above technical solution, the geared motor 11 drives the central disk 21 to rotate through the drive shaft 24, thereby driving the workpiece placement disk 31 on the central disk 21 to rotate. Through the meshing between the central gear 25 and the planetary gear 33, and the mutual meshing between the planetary gear 33 and the inner circular tooth groove 81, the workpiece placement disk 31 rotates on its own inside the mounting groove 22 while following the revolution of the central disk 21. This allows the gears on the workpiece placement disk 31 to pass through the bottom of the ultrasonic probe 44 one by one, and drive the gears to rotate on their own as they pass through, preventing missed detections and improving the detection effect.

[0054] In this embodiment, the outer side of the movable turntable 2 is movably connected to a support base 1. The support base 1 has a rectangular frame and support columns arranged in a rectangular array at the bottom. The central plate 21 is movably connected to the inner side of the rectangular frame, the outer limiting ring 8 is fixedly connected to the inner side of the rectangular frame, and the L-shaped bending plate 75 is located on the side of the rectangular frame.

[0055] In this embodiment, a fixed bracket 10 is fixedly connected between the plurality of supporting columns, and the bottom of the fixed bracket 10 is fixedly connected to the reduction motor 11. The end of the reduction motor 11 passes through the fixed bracket 10 and is connected to the drive shaft 24 through a coupling.

[0056] In this embodiment, the end of the support column passes through the hole at the end of the extension fixing plate 73, and the extension fixing plate 73 and the support column are fixedly connected by bolts. The extension fixing plate 73 fixes and supports the support base 71.

[0057] In this embodiment, the longitudinal section of the limiting slide groove 72 is T-shaped, and the extension column 77 penetrates the inner side of the limiting slide groove 72 and is slidably connected with the limiting slide groove 72.

[0058] In this embodiment, a discharge hopper 6 is fixedly connected to the side of the rectangular frame near the L-shaped bending plate 75, and the discharge hopper 6 is located between the rectangular frame and the L-shaped bending plate 75. The L-shaped bending plate 75 drives the arc-shaped guide plate 76 to move, and the arc-shaped guide plate 76 moves the gear to the inside of the discharge hopper 6 to realize automatic discharge.

[0059] In this embodiment, the bottom of the mounting column 43 is fixedly connected to the support base 1 by bolts, and the ultrasonic probe 44 and the ultrasonic display 5 are electrically connected by wires. The ultrasonic probe 44 detects the gear and transmits the feedback signal to the ultrasonic display 5. The signal processor inside the ultrasonic display 5 processes the feedback signal and finally displays the gear detection result on the screen of the ultrasonic display 5.

[0060] The working principle of this utility model is as follows: In use, the gears are first placed one by one onto the workpiece placement tray 31. The reduction motor 11 drives the central disk 21 to rotate via the drive shaft 24, thereby causing the workpiece placement tray 31 on the central disk 21 to rotate. This allows the gears on the workpiece placement tray 31 to pass over the bottom of the ultrasonic probe 44. Through the meshing between the central gear 25 and the planetary gear 33, and the meshing between the planetary gear 33 and the inner tooth groove 81, the workpiece placement tray 31 rotates within the mounting groove 22 while following the revolution of the central disk 21. This, in turn, causes the gears on the workpiece placement tray 31 to rotate. As the gears pass through the bottom of the ultrasonic probe 44 one by one, they drive the gears to rotate, improving the detection effect. The ultrasonic probe 44 transmits the detection effect to the ultrasonic display 5. When the detected gear moves to the side of the discharge hopper 6, the track disk 9 will rotate with the rotation of the drive shaft 24. The sliding column 78 slides inside the limit slide rail 91, driving the sliding plate 74 to slide in the limit slide groove 72 inside the support seat 71. Then, through the L-shaped bending plate 75, the arc guide plate 76 moves closer to the discharge hopper 6, moving the gear on the workpiece placement disk 31 into the discharge hopper 6, realizing automatic discharge of the gear.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A defect detection device for gear machining, characterized in that: It includes a movable turntable (2), on which an auxiliary turntable (3) is movably connected in a ring array. An ultrasonic flaw detector (4) is provided on one side above the movable turntable (2), and an ultrasonic display (5) is fixedly connected to the side of the ultrasonic flaw detector (4). The movable turntable (2) includes a central disc (21). The bottom of the central disc (21) is integrally provided with a central gear (25) that is connected to the auxiliary turntable (3) for transmission. The central disc (21) is provided with mounting grooves (22) corresponding to the auxiliary turntable (3) in a ring array. Each mounting groove (22) is provided with a through hole (23) at the bottom.

2. The defect detection device for gear processing according to claim 1, characterized in that: The center disk (21) has an integrally provided drive shaft (24) at the bottom center position, and the bottom of the drive shaft (24) is connected to a geared motor (11).

3. The defect detection device for gear machining according to claim 1, characterized in that: The auxiliary turntable (3) includes a workpiece placement tray (31) placed in the mounting groove (22). The bottom of the workpiece placement tray (31) is integrally provided with a rotating shaft that is movably connected to the through hole (23), and the rear end of the rotating shaft is fixedly connected to a planetary gear (33) through the through hole (23).

4. The defect detection device for gear machining according to claim 3, characterized in that: The planetary gears (33) are arranged in a ring array on the side of the central gear (25), and the planetary gears (33) mesh with the central gear (25); The outer side of the planetary gear (33) is also connected to an outer limiting ring (8). The inner side of the outer limiting ring (8) is provided with an inner circular tooth groove (81) in a ring array, and the planetary gear (33) meshes with the inner circular tooth groove (81) in the outer limiting ring (8).

5. The defect detection device for gear machining according to claim 2, characterized in that: The ultrasonic flaw detector (4) includes an arc-shaped outer shell (41) located above one side of the central disk (21), and ultrasonic probes (44) are fixedly connected in a ring array on the arc-shaped outer shell (41).

6. The defect detection device for gear machining according to claim 5, characterized in that: The ultrasonic probe (44) has fixed lugs (42) welded to both ends, and each fixed lug (42) has a mounting post (43) fixedly connected to its bottom.

7. The defect detection device for gear machining according to claim 2, characterized in that: The drive shaft (24) is also fixedly connected to a track disk (9), and a limit slide rail (91) is provided at the bottom of the track disk (9), and a movable lever (7) is provided on the side of the track disk (9).

8. The defect detection device for gear machining according to claim 7, characterized in that: The movable lever (7) includes a support base (71), both sides of which are welded with extension fixing plates (73), and the ends of the extension fixing plates (73) are provided with holes. A limiting groove (72) is provided on the inner side of the support base (71), and a sliding plate (74) is slidably connected in the limiting groove (72).

9. The defect detection device for gear machining according to claim 8, characterized in that: The sliding plate (74) is fixedly connected to an L-shaped bent plate (75) at one end. An arc-shaped guide plate (76) is fixedly connected to the end of the L-shaped bent plate (75) away from the sliding plate (74). The sliding plate (74) is located above the workpiece placement tray (31).

10. The defect detection device for gear machining according to claim 9, characterized in that: The bottom of the sliding plate (74) is fixedly connected to an extension column (77), and the end of the extension column (77) near the track plate (9) is integrally provided with a sliding column (78), and the end of the sliding column (78) is inserted into the inner side of the limiting slide rail (91).

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