Tapping device for processing direct-drive permanent magnet motor

Abstract

A tapping device for direct-drive permanent magnet motor machining comprises a containing table, a fixing assembly for limiting a direct-drive permanent magnet motor and stand columns arranged on the containing table in parallel are arranged on the containing table, the top faces of the stand columns are connected through a first connecting plate, a first electric push rod is arranged on the first connecting plate, and sliding plates are arranged on the two stand columns in a sliding mode. The first electric push rod is connected with the sliding plate, and a tapping device is arranged on the bottom face of the sliding plate. A buffering assembly is arranged on the sliding plate, a second connecting plate is arranged on the buffering assembly, and a cleaning assembly is arranged on the second connecting plate. According to the tapping device, the cleaning assembly is arranged, burrs generated during tapping can be cleaned and scraped through the cleaning assembly, manual burr cleaning is omitted, use is more convenient and faster, the tapping machining efficiency of the direct-drive permanent magnet motor is further improved, and the practicability of the tapping device is improved.

Description

Technical Field

[0001] The invention belongs to the field of tapping, and in particular relates to a tapping device for machining a direct-drive permanent magnet motor. Background Art

[0002] In the field of mechanical manufacturing and processing, direct-drive permanent magnet motors (DPM motors), with their significant advantages such as high efficiency, energy saving, high power density, and excellent speed regulation, require drilling and tapping during their processing. During the tapping process of DPM motor components, a prominent and long-standing problem is burring on the tapped holes. The tapping process involves using a tapping device to drive a tap to create an internal thread within a pre-drilled bottom hole. Burrs are highly likely to form on the edges of tapped holes due to a combination of factors, including the material properties of DPM motor components (such as the high hardness and toughness of some materials), tap geometry (such as rake angle, clearance angle, and pitch), cutting parameters (such as cutting speed and feed rate), vibration during processing, and cooling and lubrication conditions. Burrs on tapped holes are primarily addressed through post-process manual cleaning. Manual cleaning is inefficient, time-consuming, and labor-intensive, increasing production costs and cycle times. Summary of the Invention

[0003] The object of the present invention is to provide a tapping device for machining a direct-drive permanent magnet motor, so as to solve the technical problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the specific technical solution of the tapping device for machining a direct-drive permanent magnet motor of the present invention is as follows:

[0005] A tapping device for machining a direct-drive permanent magnet motor comprises a placement table, the placement table being provided with a fixing assembly for limiting the position of the direct-drive permanent magnet motor, a column arranged parallel to the placement table, and the top surfaces of the columns being connected via a first connecting plate, a first electric push rod being provided on the first connecting plate, and a slide being provided slidingly on the two columns, the first electric push rod being connected to the slide, and a tapping device being provided on the bottom surface of the slide. The tapping device comprises a first motor provided on the bottom surface of the slide, and a tap being provided at the output end of the first motor. A buffer assembly is provided on the slide, and a second connecting plate is provided on the buffer assembly, and a cleaning assembly is provided on the second connecting plate, and the cleaning assembly comprises a shield rotatably provided on the second connecting plate, a third motor provided on the top surface of the second connecting plate, and a transmission portion is provided between the third motor and the shield, a scraper is provided on the shield for sliding symmetrically along its radial direction, an inclined block is provided at one end of the scraper located inside the shield, and a reset assembly cooperating with the scraper is provided on the outer wall of the shield.

[0006] Furthermore, the reset assembly includes a bracket arranged on the outer wall of the shield, and a protrusion is slidably provided on the bracket, and the protrusion is connected to the scraper, and a second spring is provided between the bracket and the protrusion.

[0007] Furthermore, the fixing component includes two L-shaped brackets provided on the bottom surface of the placement table, and a carrier plate is slidably provided between the two L-shaped brackets. A second electric push rod is provided on the bottom surface of the placement table, and the second electric push rod is connected to the carrier plate through a connecting frame. Sliding grooves are formed along the length direction on the carrier plate and the placement table, and clamping plates are slidably provided in the sliding grooves of the carrier plate and the placement table. First fixing plates are provided at both ends of the bottom surface of the carrier plate, and a bidirectional threaded rod is rotatably provided between the two first fixing plates. A second motor is provided on the bottom surface of the placement table, and the second motor is connected to one end of the bidirectional threaded rod. Each clamping plate is threadedly connected to two sections of the threads of the bidirectional threaded rod respectively.

[0008] Furthermore, the transmission part includes a first gear provided on the protective cover and a second gear provided at the output end of the third motor, and the second gear meshes with the first gear.

[0009] Furthermore, the buffer component includes first limiting rods symmetrically arranged with respect to the center of the sliding plate, and the bottom ends of the two first limiting rods are connected through a second connecting plate. A first spring is sleeved on the first limiting rod between the sliding plate and the second connecting plate.

[0010] Furthermore, a second limiting rod is provided on the convex block, the second limiting rod is slidably arranged with the bracket, and the second spring is sleeved on the second limiting rod.

[0011] Furthermore, through holes are formed in the sliding plate corresponding to the positions of the first limiting rods, and second fixing plates are provided on both sides of the through holes on the bottom surface of the sliding plate. One ends of the two second fixing plates are connected through a mounting plate, and a loading block is rotatably arranged between the two second fixing plates through a rotating shaft. The first limiting rod penetrates through its corresponding loading block and is slidably arranged with it. The loading block is connected to the mounting plate through a limiting member.

[0012] Furthermore, the limiting member includes a top plate slidably arranged on the mounting plate, and second teeth are distributed at the inner end of the top plate. First teeth are distributed on the loading block. A support plate is provided on the side wall of the top plate, and a third spring is provided between the support plate and the mounting plate. A third limiting rod is provided on the support plate, the third limiting rod penetrates through the mounting plate and is slidably arranged with it, and the third spring is sleeved on the third limiting rod.

[0013] The tapping device for direct-drive permanent magnet motor processing of the present invention has the following advantages:

[0014] 1. By setting the cleaning component, the burrs generated during tapping can be cleaned and scraped by the cleaning component, saving manual cleaning of burrs, making it more convenient to use, further improving the efficiency of tapping the direct-drive permanent magnet motor, and improving the practicability of the tapping device.

[0015] 2. The first limiting rod is slidably arranged on the loading block, and the loading block is rotatably arranged on the second fixing plate through a rotating shaft, which is convenient for replacing the tap in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a tapping device for machining a direct-drive permanent magnet motor according to the present invention;

[0017] Figure 2 It is a schematic structural diagram of the limit assembly of the present invention;

[0018] Figure 3 This is a schematic diagram of the buffer assembly of the present invention;

[0019] Figure 4 A schematic diagram of a cleaning component of the present invention;

[0020] Figure 5 It is a schematic diagram of the second fixing plate, mounting plate, transfer block and limiting member of the present invention.

[0021] Description of the markings in the figure:

[0022] 1. Placement table; 2. Column; 3. First connecting plate; 4. First electric push rod; 5. Slide plate; 6. First motor; 7. Tap; 8. First fixed plate; 9. Clamp; 10. Second motor; 11. Bidirectional threaded rod; 12. First limiting rod; 13. First spring; 14. Second connecting plate; 15. Shield; 16. First gear; 17. Third motor; 18. Second gear; 19. Bracket; 20. Second limiting rod; 21. Second spring; 22. Bump; 23. Scraper; 24. Through hole; 25. Second fixed plate; 26. Mounting plate; 27. Loading block; 28. First tooth; 29. Top plate; 30. Support plate; 31. Third limiting rod; 32. Third spring; 33. Second tooth; 34. Second electric push rod; 35. Carrying plate; 36. L-frame. DETAILED DESCRIPTION

[0023] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a tapping device for machining a direct-drive permanent magnet motor according to the present invention in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5As shown in the figure, a tapping device for the processing of a direct-drive permanent magnet motor according to the present invention includes a placement table 1 for placing the direct-drive permanent magnet motor, and a fixing component for limiting the direct-drive permanent magnet motor is provided on the placement table 1. The stability of the direct-drive permanent magnet motor on the placement table 1 can be improved through the fixing component. Columns 2 are also arranged in parallel on the placement table 1, and the top surfaces of the columns 2 are connected by a first connecting plate 3. A first electric push rod 4 with a telescopic end facing downwards is provided on the first connecting plate 3, and a sliding plate 5 is slidably arranged on the two columns 2. The first electric push rod 4 is connected to the sliding plate 5, and a tapping device is also provided on the bottom surface of the sliding plate 5. After the direct-drive permanent magnet motor is fixed by the fixing component, the tapping device is started, and then the first electric push rod 4 is started. The first electric push rod 4 will drive the tapping device to descend through the sliding plate 5 and complete the tapping work on the direct-drive permanent magnet motor.

[0025] Specifically, the tapping device includes a first motor 6 provided on the bottom surface of the sliding plate 5 and connected to an external power source. A tap 7 is provided at the output end of the first motor 6. The first motor 6 drives the tap 7 to rotate, and in cooperation with the first electric push rod 4, the tapping of the drilled hole can be realized. The first electric push rod 4 can also be replaced by a hydraulic cylinder or other devices that can perform linear motion, and no further restrictions are made here.

[0026] The above-mentioned fixing component includes two L-shaped frames 36 provided on the bottom surface of the placement table 1, and a carrier plate 35 is slidably arranged between the two L-shaped frames 36. A second electric push rod 34 connected to an external power source is provided on the bottom surface of the placement table 1, and the second electric push rod 34 is connected to the carrier plate 35 through a connecting frame. First fixing plates 8 are provided at both ends of the bottom surface of the carrier plate 35, and a bidirectional threaded rod 11 is rotatably arranged between the two first fixing plates 8. A second motor 10 connected to an external power source is also provided on the bottom surface of the placement table 1, and the second motor 10 is connected to one end of the bidirectional threaded rod 11. A chute is opened on the placement table 1 along its length direction, and two clamping plates 9 are slidably arranged in the chute. Each clamping plate 9 is respectively threadedly connected to the two threads of the bidirectional threaded rod 11. The direct-drive permanent magnet motor is placed on the placement table 1, and then the second motor 10 is started. The second motor 10 drives the bidirectional threaded rod 11 to rotate, and the clamping plates 9 threadedly connected to the bidirectional threaded rod 11 will move relatively closer to each other to complete the fixing of the direct-drive permanent magnet motor. Then, the tapping device can be used to tap it. As Figure 2 shown, when it is necessary to move the direct-drive permanent magnet motor clamped between the two clamping plates 9 in the left-right direction, the second electric push rod 34 can be started. The second electric push rod 34 drives the carrier plate 35, the second motor 10, and the bidirectional threaded rod 11 through the connecting frame to drive the two clamping plates 9 and the direct-drive permanent magnet motor to move. It should be noted that if it is necessary to release the fixing of the direct-drive permanent magnet motor by the two clamping plates 9, only the second motor 10 needs to be controlled to rotate in the reverse direction.

[0027] As Figure 1 and Figure 3As shown in the figure, a buffer assembly is provided on the skateboard 5, and a second connecting plate 14 is provided on the buffer assembly. A cleaning assembly is provided on the second connecting plate 14. The cleaning assembly can clean and scrape the burrs generated during tapping, saving manual cleaning of burrs, making it more convenient to use, further improving the efficiency of tapping the direct-drive permanent magnet motor, and enhancing the practicality of this tapping device. Specifically, the cleaning assembly includes a shield 15 rotatably provided on the second connecting plate 14, a third motor 17 provided on the top surface of the second connecting plate 14 and connected to an external power source, and a connection between the third motor 17 and the shield 15 through a transmission part. Among them, scraping knives 23 are symmetrically and slidably provided on the bottom surface of the shield 15 along its radial direction. An inclined block is provided at one end of the scraping knife 23 located inside the shield 15, and a reset assembly cooperating with the scraping knife 23 is provided on the outer wall of the shield 15. Specifically, the reset assembly includes a bracket 19 provided on the outer wall of the shield 15. A convex block 22 is slidably provided on the bracket 19, and the convex block 22 is connected to the scraping knife 23. A second spring 21 is provided between the bracket 19 and the convex block 22.

[0028] When the tapping device descends, the shield 15 will descend through the buffer assembly, and the bottom surface of the shield 15 will first come into contact with the direct-drive permanent magnet motor and stop after contact. Then the tapping device continues to descend, and the tap 7 will pass through the shield 15, and the tap 7 will push the scraping knife 23 to move outward through the inclined block. When the scraping knife 23 moves, it will compress the second spring 21 through the convex block 22. After tapping is completed, the tapping device rises under the action of the first electric push rod 4 and the skateboard 5. But after the tap 7 disengages from the inclined block, the second spring 21 will push the scraping knife 23 to move to the initial position through the convex block 22. Then the third motor 17 is started, and the third motor 17 drives the shield 15 to rotate through the transmission part, and the scraping knife 23 provided on the shield 15 will also rotate. At this time, the scraping knife 23 can clean the burrs on the surface of the tapping position.

[0029] Specifically, a second limiting rod 20 is provided on the convex block 22. The second limiting rod 20 is slidably provided with the bracket 19, and the second spring 21 is sleeved on the second limiting rod 20. The second limiting rod 20 can limit the second spring 21 to prevent the problem of bending when the spring is compressed, causing damage. As Figure 3 As shown in the figure, the transmission part for connecting the shield 15 and the third motor 17 includes a first gear 16 provided on the shield 15, a second gear 18 provided at the output end of the third motor 17, and the second gear 18 meshes with the first gear 16. When the third motor 17 drives the second gear 18 to rotate, the first gear 16 meshing with it will also rotate. When the first gear 16 rotates, the shield 15 connected to the first gear 16 will also rotate.

[0030] As Figure 3As shown in the figure, the buffer assembly includes first limiting rods 12 symmetrically arranged with respect to the center of the sliding plate 5. The bottom ends of the two first limiting rods 12 are connected by a second connecting plate 14. A first spring 13 is sleeved on the first limiting rod 12 between the sliding plate 5 and the second connecting plate 14. When the sliding plate 5 descends, the first spring 13 will push the second connecting plate 14 to descend, and the shield 15 on the second connecting plate 14 will be compressed after contacting the direct-drive permanent magnet motor. At this time, the setting of the spring can play a buffering role for the shield 15. When the sliding plate 5 ascends, the sliding plate 5 will drive the second connecting plate 14 to ascend through the first limiting rod 12, and the cleaning assembly arranged on the second connecting plate 14 will also ascend.

[0031] Preferably, through holes 24 are formed in the sliding plate 5 at positions corresponding to the first limiting rods 12. Second fixing plates 25 are arranged on both sides of the through holes 24 at the bottom surface of the sliding plate 5. One ends of the two second fixing plates 25 are connected by a mounting plate 26. A loading block 27 is rotatably arranged between the two second fixing plates 25 through a rotating shaft. The first limiting rod 12 passes through its corresponding loading block 27 and is slidably arranged therein. The setting of the through holes 24 facilitates the first limiting rod 12 to pass through the sliding plate 5 and prevents the sliding plate 5 from blocking the first limiting rod 12. In order to fix the position between the loading block 27 and the mounting plate 26, the loading block 27 and the mounting plate 26 are connected by a limiting member. The first limiting rod 12 is slidably arranged on the loading block 27, and the loading block 27 is rotatably arranged on the second fixing plate 25 through a rotating shaft, which is convenient for the replacement of the tap 7 in the later stage. At the same time, by pushing the second connecting plate 14, the second connecting plate 14 will drive the limiting rod to rotate around the center of the loading block 27, so that the second connecting plate 14 moves to other positions, which is convenient for the disassembly and assembly of the tap 7 from the first motor 6.

[0032] Specifically, the limiting member includes a top plate 29 slidably arranged on the mounting plate 26. Second teeth 33 are distributed at the inner end of the top plate 29. First teeth 28 are distributed on the loading block 27. At the same time, a support plate 30 is arranged on the side wall of the top plate 29. A third spring 32 is arranged between the support plate 30 and the mounting plate 26. A handle is arranged at the outer end of the top plate 29. By pulling the top plate 29 outwards through the handle, the top plate 29 compresses the third spring 32 through the support plate 30. At this time, the second teeth 33 arranged on the top plate 29 will disengage from the first teeth 28 on the loading block 27, and then the rotation of the loading block 27 can be realized.

[0033] In order to increase the stability of the top plate 29 on the mounting plate 26, a third limiting rod 31 is arranged on the support plate 30. The third limiting rod 31 passes through the mounting plate 26 and is slidably arranged therein. The third spring 32 is sleeved on the third limiting rod 31.

[0034] Usage method: Place the direct-drive permanent magnet motor on the placement table 1, and then start the second motor 10. The second motor 10 drives the bidirectional threaded rod 11 to achieve the relative movement of the two clamping plates 9 to fix the direct-drive permanent magnet motor. Then use the second electric push rod 34 to drive the carrier plate 35 to move through the connecting frame, so as to position the direct-drive permanent magnet motor for drilling and the tap 7. Then start the first electric push rod 4. The first electric push rod 4 drives the tapping device to descend through the sliding plate 5 and the buffer assembly, and the tapping device can tap the drilled hole. Similarly, after tapping is completed, control the first electric push rod 4 to move upward.

[0035] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A tapping device for machining a direct-drive permanent magnet motor, characterized in that: It includes a placement table (1), on which a fixing component for limiting the direct-drive permanent magnet motor is provided, a column (2) arranged in parallel on the placement table (1), and the top surface of the column (2) is connected by a first connecting plate (3). A first electric push rod (4) is provided on the first connecting plate (3), and a sliding plate (5) is arranged on the two columns (2). The first electric push rod (4) is connected to the sliding plate (5), and a tapping device is provided on the bottom surface of the sliding plate (5); The tapping device includes a first motor (6) provided on the bottom surface of the sliding plate (5), and a tap (7) is provided at the output end of the first motor (6); A buffer component is provided on the sliding plate (5), and a second connecting plate (14) is provided on the buffer component. A cleaning component is provided on the second connecting plate (14), and the cleaning component includes a shield (15) rotatably arranged on the second connecting plate (14), a third motor (17) provided on the top surface of the second connecting plate (14), and a transmission part is provided between the third motor (17) and the shield (15). Scrapers (23) are symmetrically and slidably arranged along the radial direction of the shield (15). An inclined block is provided at one end of the scraper (23) located inside the shield (15), and a reset component for cooperating with the scraper (23) is provided on the outer wall of the shield (15).

2. The tapping device for machining a direct-drive permanent magnet motor according to claim 1, characterized in that: The reset component includes a bracket (19) provided on the outer wall of the shield (15), a convex block (22) is slidably arranged on the bracket (19), and the convex block (22) is connected to the scraper (23). A second spring (21) is provided between the bracket (19) and the convex block (22).

3. The tapping device for machining a direct-drive permanent magnet motor according to claim 2, characterized in that: The fixing component includes two L-shaped frames (36) provided on the bottom surface of the placement table (1), a carrier plate (35) is slidably arranged between the two L-shaped frames (36), a second electric push rod (34) is provided on the bottom surface of the placement table (1), and the second electric push rod (34) is connected to the carrier plate (35) through a connecting frame; Chute grooves are opened along the length direction on the carrier plate (35) and the placement table (1), and clamping plates (9) are slidably arranged in the chute grooves of the carrier plate (35) and the placement table (1). First fixing plates (8) are provided at both ends of the bottom surface of the carrier plate (35), and a bidirectional threaded rod (11) is rotatably arranged between the two first fixing plates (8). A second motor (10) is provided on the bottom surface of the placement table (1), and the second motor (10) is connected to one end of the bidirectional threaded rod (11); Each clamping plate (9) is respectively threadedly connected to the two sections of the thread of the bidirectional threaded rod (11).

4. The tapping device for machining a direct-drive permanent magnet motor according to claim 3, characterized in that: The transmission part includes a first gear (16) provided on the shield (15), a second gear (18) provided at the output end of the third motor (17), and the second gear (18) meshes with the first gear (16).

5. The tapping device for machining a direct-drive permanent magnet motor according to claim 4, characterized in that ； The buffer assembly includes first limiting rods (12) symmetrically arranged with respect to the center of the sliding plate (5), and the bottoms of the two first limiting rods (12) are connected by a second connecting plate (14). A first spring (13) is sleeved on the first limiting rod (12) between the sliding plate (5) and the second connecting plate (14).

6. A tapping device for machining a direct-drive permanent magnet motor according to claim 2, It is characterized in that; A second limiting rod (20) is provided on the bump (22), the second limiting rod (20) is slidably arranged with the bracket (19), and a second spring (21) is sleeved on the second limiting rod (20).

7. A tapping device for machining a direct-drive permanent magnet motor according to claim 5, It is characterized in that; Through holes (24) are formed in the sliding plate (5) at positions corresponding to the first limiting rods (12), and second fixing plates (25) are provided on both sides of the through holes (24) on the bottom surface of the sliding plate (5). One ends of the two second fixing plates (25) are connected by a mounting plate (26), and a loading block (27) is rotatably arranged between the two second fixing plates (25) through a rotating shaft. The first limiting rod (12) penetrates through the corresponding loading block (27) and is slidably arranged therewith; The loading block (27) is connected to the mounting plate (26) through a limiting member.

8. The tapping device for machining a direct-drive permanent magnet motor according to claim 7, characterized in that ； The limiting member includes a top plate (29) slidably arranged on the mounting plate (26), and second teeth (33) are distributed at the inner end of the top plate (29). First teeth (28) are distributed on the loading block (27). A support plate (30) is provided on the side wall of the top plate (29), and a third spring (32) is provided between the support plate (30) and the mounting plate (26). A third limiting rod (31) is provided on the support plate (30), the third limiting rod (31) penetrates through the mounting plate (26) and is slidably arranged therewith, and the third spring (32) is sleeved on the third limiting rod (31).

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