A polishing device for motor shaft machining

Abstract

The application relates to the technical field of motor shaft machining, and discloses a polishing equipment for motor shaft machining, which comprises two groups of positioning discs, a first polishing piece for polishing the end face of a motor shaft is fixed on each of the two groups of positioning discs, and a material conveying disc is rotationally arranged between the two groups of positioning discs; a plurality of groups of grooves are formed in the outer surface of the material conveying disc, two groups of first sleeves for inserting the motor shaft are fixed in the plurality of groups of grooves, a second sleeve is arranged between the two groups of first sleeves, and a positioning clamping plate is arranged in the second sleeve; according to the technical scheme, the motor shaft is sent into the first sleeve and the second sleeve on the material conveying disc, then the motor shaft is clamped and fixed through the rotation of the material conveying disc, after the motor shaft is clamped and fixed, the rotation of the material conveying disc is utilized to make the motor shaft pass through the first polishing piece, and the end face of the motor shaft is polished through the first polishing piece, so that the polishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of motor shaft machining, in particular to a polishing equipment for motor shaft machining. BACKGROUND

[0002] A motor is a device for converting electric energy into mechanical energy, a motor shaft is an important part in the motor as a link for converting motor and equipment mechanical energy, and thus the machining quality of the motor shaft has an important influence on the performance of the motor.

[0003] When the motor shaft is machined, the motor shaft needs to be polished, in order to ensure the geometric size and roundness precision and improve the working reliability and durability of the motor shaft, the end face of the motor shaft generally needs to be polished, the end face of the motor shaft is a plane perpendicular to the axis, and when the end face of the motor shaft is polished, manual feeding and discharging are often used, which is time-consuming and laborious, and when the motor shaft is polished by using a polishing piece, one motor shaft is generally polished separately, another motor shaft is polished after one motor shaft is polished, and the polishing efficiency is low. SUMMARY

[0004] The application provides a polishing equipment for motor shaft machining, a plurality of groups of motor shafts can be placed on a feeding disc, the motor shafts are driven to rotate by rotation of the feeding disc, the motor shafts pass through first polishing pieces, and polishing of the end faces of the motor shafts is completed, and the problems of time consumption, labor intensity and low polishing efficiency mentioned in the background technology are solved.

[0005] The application provides the following technical scheme: a polishing equipment for motor shaft machining, comprising two groups of positioning discs, first polishing pieces for polishing the end faces of motor shafts are fixed on the two groups of positioning discs, a feeding disc is rotationally arranged between the two groups of positioning discs, a feeding port is arranged on one of the two groups of positioning discs, and a discharging port is arranged on each of the two groups of positioning discs.

[0006] A plurality of groups of grooves are arranged on the outer surface of the feeding disc, two groups of first sleeves for inserting the motor shafts are fixed in the plurality of groups of grooves, a second sleeve is arranged between the two groups of first sleeves, a positioning clamping plate is arranged in the second sleeve, a first annular sliding groove is arranged on each of the two groups of positioning discs, a first sliding rod is slidably arranged in the first annular sliding groove, and the positioning clamping plate is clamped and fixed to the motor shaft by sliding of the first sliding rod in the first annular sliding groove.

[0007] As an optional scheme of the motor shaft machining polishing equipment, the bottom of the positioning disc is fixed with a fixed base, a first electric push rod and a second electric push rod are fixed on the fixed base, the output end of the first electric push rod is fixed with a first material pushing plate for moving the feeding port, the output end of the second electric push rod is fixed with a second material pushing plate for moving the discharging port, a material guide plate is fixed between the feeding port and the first electric push rod, the outer surface of one of the groups of positioning discs is fixed with a servo motor, and the output end of the servo motor is fixedly connected with the material conveying disc.

[0008] As an optional scheme of the motor shaft machining polishing equipment, a guide groove is formed in the inner wall of the first annular chute, a first sliding protrusion is fixed at the end of the first sliding rod, and the first sliding protrusion is slidingly arranged in the guide groove. The guide groove comprises a first horizontal portion, a first inclined portion, a second horizontal portion and a second inclined portion which are sequentially and communicatively arranged.

[0009] As an optional scheme of the motor shaft machining polishing equipment, a moving ring is movably arranged on the first sleeve, a slot is formed in the outer surface of the second sleeve, a plug rod is fixed to the inner surface of the moving ring, the plug rod is slidingly inserted into the slot, a first sliding groove is formed at the end of the plug rod, an inclined groove is formed in the inner wall of the first sliding groove, a first connecting rod is fixed to the positioning clamping plate, the first connecting rod is slidingly arranged in the interior of the second sleeve, a first transmission rod is fixed at the end of the first connecting rod, a second sliding protrusion is fixed at the end of the first transmission rod, and the second sliding protrusion is slidingly arranged in the inclined groove.

[0010] As an optional scheme of the motor shaft machining polishing equipment, a limiting ring groove is formed in the outer surface of the moving ring, and a limiting ball is fixed at the end of the first sliding rod, and the limiting ball is slidingly arranged in the limiting ring groove.

[0011] As an optional scheme of the motor shaft machining polishing equipment, rotating rings are fixed on both sides of the second sleeve, the rotating rings are rotatably arranged in the interior of the first sleeve, a tooth ring is fixed to the outer surface of the second sleeve, arc-shaped tooth plates are arranged between the two groups of positioning discs, the tooth ring is engaged with the arc-shaped tooth plates, and a fixing rod is fixed between the outer surface of the arc-shaped tooth plate and the positioning disc.

[0012] As an optional scheme of the motor shaft machining polishing equipment, the third sleeve is arranged on the both sides of the groove, the first hydraulic oil groove is arranged in the interior of the rotating ring, the first piston plate is elastically connected in the interior of the first hydraulic oil groove, the second hydraulic oil groove is arranged in the interior of the third sleeve and communicated with the first hydraulic oil groove, the second piston plate is elastically connected in the interior of the second hydraulic oil groove, the second connecting rod is fixed on the second piston plate, and the second polishing piece is fixed on the other end of the second connecting rod.

[0013] As an optional scheme of the motor shaft machining polishing equipment, the first trapezoidal block is fixed on the first connecting rod, the second transmission rod is fixed on the outer surface of the first piston plate, the second trapezoidal block is fixed on the end of the second transmission rod, the spring groove is arranged in the interior of the rotating ring, the convex plate is fixed on the circumference of the second transmission rod, the first spring is fixed between the convex plate and the inner wall of the spring groove, and the second spring is fixed between the lower surface of the second piston plate and the inner wall of the second hydraulic oil groove.

[0014] As an optional scheme of the motor shaft machining polishing equipment, the oil conveying groove is arranged in the interior of the third sleeve and communicated with the second hydraulic oil groove, the annular sealing piece is arranged on one side of the first hydraulic oil groove, the telescopic pipe communicated with the first hydraulic oil groove is fixed on the annular sealing piece, and the other end of the telescopic pipe is communicated with the oil conveying groove.

[0015] As an optional scheme of the motor shaft machining polishing equipment, the second sliding rod is fixed on the outer surface of the third sleeve, the second annular sliding groove is arranged on the outer surface of the moving ring, the wave-shaped groove is arranged in the inner wall of the second annular sliding groove, the third sliding convex is fixed on the end of the second sliding rod, and the third sliding convex is slidingly arranged in the wave-shaped groove.

[0016] The motor shaft machining polishing equipment has the following beneficial effects:

[0017] 1. In this grinding equipment for motor shaft processing, when grinding the motor shaft, the first electric push rod pushes the first pusher plate to push the motor shaft into the feeding disc. Then, the servo motor drives the feeding disc to rotate, causing the first slide rod to slide inside the first annular groove. This causes the first slide rod to push the moving ring to slide on the first sleeve, causing the insert rod to slide inside the slot. This causes the first connecting rod to move the positioning clamping plate, which clamps and fixes the motor shaft. Thus, when the feeding disc rotates, it drives the motor shaft to move stably. When the motor shaft moves to the first grinding disc, the first grinding disc is used to grind the end face of the motor shaft. When grinding the end face of the motor shaft, it is only necessary to feed the material through the feed port. The grinding work of the end face of the motor shaft can be completed while the feeding disc is rotating. This not only makes grinding convenient but also improves grinding efficiency.

[0018] 2. In this grinding equipment for motor shaft processing, the toothed ring and the arc-shaped toothed plate are configured so that when the motor shaft rotates with the feed disc, the toothed ring will mesh with the arc-shaped toothed plate. After the toothed ring meshes with the arc-shaped toothed plate, the toothed ring can drive the second sleeve to rotate, so that the second sleeve can drive the clamped and fixed motor shaft to rotate. When the first grinding disc grinds the end face of the motor shaft, the rotation of the motor shaft further improves the grinding effect.

[0019] 3. In the grinding equipment for motor shaft processing, when the positioning clamp clamps and fixes the motor shaft, the first connecting rod abuts against the first trapezoidal block and the second trapezoidal block, driving the second transmission rod to move. The movement of the second transmission rod drives the first piston plate to fill the hydraulic oil in the first hydraulic oil groove into the second hydraulic oil groove, causing the second piston plate to drive the second connecting rod to move, which in turn drives the second grinding disc to move, moving the second grinding disc to contact the circumferential surface of the motor shaft. When the motor shaft rotates, the circumferential surface of the motor shaft can be ground by the second grinding disc, thereby increasing the grinding position of the motor shaft and improving grinding efficiency.

[0020] To further improve the polishing effect, when the second polishing disc is polishing, the second sliding rod slides inside the second annular groove, causing the third sliding protrusion to slide inside the wavy groove. This allows the third sliding protrusion to drive the second sliding rod to reciprocate left and right, which in turn drives the third sleeve to reciprocate left and right, thus causing the second polishing disc to reciprocate left and right. The reciprocating left and right motion of the second polishing disc polishes the circumferential surface of the motor shaft, resulting in a better polishing effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 For the present invention Figure 1Enlarged view of point A in the middle.

[0023] Figure 3 This is a schematic diagram of the material feeding tray part of the present invention.

[0024] Figure 4 For the present invention Figure 3 Enlarged view of section B in the middle.

[0025] Figure 5 This is a top view of the feed tray structure of the present invention.

[0026] Figure 6 For the present invention Figure 5 Enlarged view of point C in the middle.

[0027] Figure 7 This is a cross-sectional view of the internal structure of the feed tray of the present invention.

[0028] Figure 8 For the present invention Figure 7 Enlarged view of point D in the middle.

[0029] Figure 9 For the present invention Figure 7 Enlarged view of point E in the middle.

[0030] Figure 10 This is a schematic diagram of the trajectory of the guide groove in this invention.

[0031] Figure 11 This is a schematic diagram of the trajectory of the wavy groove in this invention.

[0032] Figure 12 This is a schematic diagram of the connection between the annular sealing sheet and the telescopic tube in this invention.

[0033] In the diagram: 1. Positioning disc; 2. First grinding disc; 3. Feeding disc; 4. Feed inlet; 5. Discharge outlet; 6. Groove; 7. First sleeve; 8. Second sleeve; 9. Positioning clamp; 10. First annular groove; 11. First sliding rod; 12. Fixed base; 13. First electric push rod; 14. Second electric push rod; 15. First push plate; 16. Second push plate; 17. Guide plate; 18. Servo motor; 19. Guide groove; 191. First horizontal part; 192. First inclined part; 193. Second horizontal part; 194. Second inclined part; 20. First sliding protrusion; 21. Moving ring; 22. Slot; 23. Insert rod; 24. First groove; 25. Inclined groove; 26. First connecting rod; 27. First transmission rod; 28. Second sliding protrusion; 29. ​​Limiting ring groove; 30. Limiting ball; 31. Rotating ring; 32. Gear ring; 33. Arc-shaped toothed plate; 34. Fixed rod; 35. Third sleeve; 36. First hydraulic oil groove; 37. First piston plate; 38. Second hydraulic oil groove; 39. Second piston plate; 40. Second connecting rod; 41. Second grinding disc; 42. First trapezoidal block; 43. Second transmission rod; 44. Second trapezoidal block; 45. Spring groove; 46. Protruding plate; 47. First spring; 48. Second spring; 49. Oil delivery groove; 50. Annular sealing sheet; 51. Telescopic tube; 52. Second slide rod; 53. Second annular slide groove; 54. Wavy groove; 55. Third sliding protrusion; 56. Slider; 57. Slide rail; 58. Motor shaft. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figures 1-12 A grinding device for machining motor shafts includes two sets of positioning discs 1. Each of the two sets of positioning discs 1 is fixed with a first grinding disc 2 for grinding the end face of the motor shaft 58. A feeding disc 3 is rotatably arranged between the two sets of positioning discs 1. One set of positioning discs 1 is provided with a feeding port 4, and both sets of positioning discs 1 are provided with a discharging port 5.

[0036] The outer surface of the feeding disc 3 is provided with several sets of grooves 6. Two sets of first sleeves 7 for inserting motor shaft 58 are fixed in each set of grooves 6. A second sleeve 8 is provided between the two sets of first sleeves 7. A positioning clamp 9 is provided inside the second sleeve 8. A first annular groove 10 is provided on the two sets of positioning discs 1. A first slide rod 11 is slidably provided in the first annular groove 10. The positioning clamp 9 clamps and fixes the motor shaft 58 by sliding inside the first annular groove 10 through the first slide rod 11.

[0037] A fixed base 12 is fixed to the bottom of the positioning disc 1. A first electric push rod 13 and a second electric push rod 14 are fixed on the fixed base 12. A first push plate 15 for moving towards the feed port 4 is fixed to the output end of the first electric push rod 13. A second push plate 16 for moving towards the feed port 5 is fixed to the output end of the second electric push rod 14. A guide plate 17 is fixed between the feed port 4 and the first electric push rod 13. A servo motor 18 is fixed to the outer surface of one set of positioning discs 1. The output end of the servo motor 18 is fixedly connected to the feeding disc 3.

[0038] A guide groove 19 is provided on the inner wall of the annular groove slide. A first sliding protrusion 20 is fixed at the end of the first slide rod 11. The first sliding protrusion 20 is slidably disposed in the guide groove 19. The guide groove 19 includes a first horizontal part 191, a first inclined part 192, a second horizontal part 193, and a second inclined part 194 that are connected in sequence.

[0039] A movable ring 21 is movably disposed on the first sleeve 7. A slot 22 is provided on the outer surface of the second sleeve 8. An insert rod 23 is fixed on the inner surface of the movable ring 21. The insert rod 23 is slidably inserted into the slot 22. A first sliding groove 24 is provided at the end of the insert rod 23. An inclined groove 25 is provided on the inner wall of the first sliding groove 24. A first connecting rod 26 is fixed on the positioning clamp 9. The first connecting rod 26 is slidably disposed inside the second sleeve 8. A first transmission rod 27 is fixed at the end of the first connecting rod 26. A second sliding protrusion 28 is fixed at the end of the first transmission rod 27. The second sliding protrusion 28 is slidably disposed in the inclined groove 25.

[0040] In this technical solution, when grinding the motor shaft 58, the motor shaft 58 is first fed onto the guide plate 17, and then the first pusher plate 15 is moved by the first electric pusher rod 13, so that the first pusher plate 15 pushes the motor shaft 58 into the feed plate 3 through the feed port 4, so that the motor shaft 58 passes through the first sleeve 7. At this time, the two ends of the motor shaft 58 are located between the two sets of positioning discs 1. The first electric pusher rod 13 is reset, the servo motor 18 rotates and drives the feed plate 3 to rotate, so that the position of the next first sleeve 7 is rotated to the feed port 4. The above operation is repeated to feed the motor shaft 58.

[0041] When the motor shaft 58 is inserted into the first sleeve 7 and positioned between the two sets of positioning discs 1, the material conveying disc 3 rotates, causing the first sleeve 7 and the second sleeve 8 to rotate. Simultaneously, it causes the first sliding rod 11 to slide inside the first annular groove 10. When the first sliding rod 11 drives the first sliding protrusion 20 to slide from the first horizontal portion 191 to the first inclined portion 192, and slides along the first inclined portion 192, as... Figure 10 and Figure 8 As shown, the first sliding protrusion 20 drives the first sliding rod 11 to move to the right. The first sliding rod 11 moves to the right, pushing the moving ring 21 to move to the right. The moving ring 21 moves to the right, driving the insertion rod 23 to move to the right within the slot 22. The insertion rod 23 moves to the right, causing the first transmission rod 27 to move to the left within the first sliding groove 24. Due to the resistance of the inclined groove 25, the second sliding protrusion 28 slides within the inclined groove 25, causing the second sliding protrusion 28 to drive the first transmission rod 27 to move downward. The first transmission rod 27 drives the first connecting rod 26 to move downward. The first connecting rod 26 drives the positioning clamp 9 to move downward, causing the positioning clamp 9 to clamp and fix the motor shaft 58. Then, the first sliding protrusion 20 slides to the second horizontal part 193 and slides along the second horizontal part 193. At this time, the motor shaft 58 is always in a clamped state. When both ends of the motor shaft 58 rotate to the first grinding disc 2, the first grinding disc 2 grinds both ends of the motor shaft 58. Figure 1 As shown, the first grinding disc 2 has an arc-shaped structure, which allows the first grinding disc 2 to continuously grind both ends of the motor shaft 58 as the motor shaft 58 rotates with the feeding disc 3, until both ends of the motor shaft 58 have rotated past the first grinding disc 2, and the grinding is completed.

[0042] When the motor shaft 58 rotates past the first grinding disc 2 at both ends, the first sliding protrusion 20 slides from the second horizontal part 193 to the second inclined part 194 and slides along the second inclined part 194. At this time, the first sliding rod 11 moves to the left to reset, driving the moving ring 21 to reset. The moving ring 21 drives the insertion rod 23 to reset, and the insertion rod 23 drives the positioning clamp 9 to reset, so that the positioning clamp 9 no longer clamps the motor shaft 58. Then the first sliding protrusion 20 slides back into the first horizontal part 191 until the feeding disc 3 drives the motor shaft 58 to rotate to the discharge port 5. The servo motor 18 stops and pushes the second pusher plate 16 to move through the second electric push rod 14. The second pusher plate 16 is inserted into the discharge port 5 of the positioning disc 1 on one side, and the motor shaft 58 is pushed out from the discharge port 5 on the positioning disc 1 on the other side. At the same time, the motor shaft 58 is loaded at the feed port 4. Then the servo motor 18 works to realize the periodic loading and unloading of the motor shaft 58, which is beneficial to improving work efficiency.

[0043] In Example 2, as the motor shaft 58 rotates with the feed disc 3, the first grinding disc 2 grinds the motor shaft 58. Since the motor shaft 58 and the first grinding disc 2 only slide relative to each other, the grinding effect on the end face of the motor shaft 58 is poor. To address this problem, this example is an improvement based on Example 1. For details, please refer to... Figures 1-12 A limiting ring groove 29 is formed on the outer surface of the moving ring 21, and a limiting ball 30 is fixed at the end of the first slide rod 11. The limiting ball 30 is slidably disposed in the limiting ring groove 29.

[0044] Rotating rings 31 are fixed on both sides of the second sleeve 8. The rotating rings 31 are rotatably disposed inside the first sleeve 7. A toothed ring 32 is fixed on the outer surface of the second sleeve 8. An arc-shaped toothed plate 33 is disposed between the two sets of positioning discs 1. The toothed ring 32 meshes with the arc-shaped toothed plate 33. A fixing rod 34 is fixed between the outer surface of the arc-shaped toothed plate 33 and the positioning disc 1.

[0045] In this technical solution, after the motor shaft 58 is clamped and fixed by the positioning clamping plate 9, the motor shaft 58 rotates with the feeding disc 3. When the motor shaft 58 rotates to the bottom of the arc-shaped toothed plate 33, the toothed ring 32 on the second sleeve 8 meshes with the arc-shaped toothed plate 33. Then the toothed ring 32 drives the second sleeve 8 to rotate, the second sleeve 8 drives the positioning clamping plate 9 to rotate, and the positioning clamping plate 9 drives the clamped motor shaft 58 to rotate, so that when the two ends of the motor shaft 58 are polished by the first polishing disc 2, the polishing effect of the end face of the motor shaft 58 can be increased by self-rotation.

[0046] The rotating ring 31 increases the stability of the second sleeve 8 when rotating relative to the first sleeve 7. The limiting ball 30 and the limiting ring groove 29 enable the first slide rod 11 to move synchronously with the moving ring 21 when it moves left and right. The limiting ball 30 can rotate inside the limiting ring groove 29, so that the first slide rod 11 will not affect the rotation of the moving ring 21 on the first sleeve 7, nor will it affect the sliding of the first slide rod 11 inside the first annular groove 10.

[0047] In Example 3, since the circumferential surfaces of both ends of the motor shaft 58 need to be connected to other parts during use, and grinding is required for easy installation, grinding the circumferential surfaces of the motor shaft 58 separately would increase the workload and time-consuming process. To address this issue, this example is an improvement upon Example 2. For details, please refer to [link / reference]. Figures 1-12Both sides of the groove 6 are provided with a third sleeve 35. The rotating ring 31 has a first hydraulic oil groove 36 inside. The first hydraulic oil groove 36 is elastically connected to a first piston plate 37. The third sleeve 35 has a second hydraulic oil groove 38 inside that communicates with the first hydraulic oil groove 36. The second hydraulic oil groove 38 is elastically connected to a second piston plate 39. A second connecting rod 40 is fixed on the second piston plate 39. A second grinding disc 41 is fixed at the other end of the second connecting rod 40.

[0048] A first trapezoidal block 42 is fixed on the first connecting rod 26, a second transmission rod 43 is fixed on the outer surface of the first piston plate 37, a second trapezoidal block 44 is fixed at the end of the second transmission rod 43, a spring groove 45 is provided inside the rotating ring 31, a protruding plate 46 is fixed on the circumference of the second transmission rod 43, a first spring 47 is fixed between the protruding plate 46 and the inner wall of the spring groove 45, and a second spring 48 is fixed between the lower surface of the second piston plate 39 and the inner wall of the second hydraulic oil groove 38.

[0049] The third sleeve 35 has an oil delivery groove 49 inside that communicates with the second hydraulic oil groove 38. One side of the first hydraulic oil groove 36 is sealed with an annular sealing plate 50. A telescopic pipe 51 that communicates with the first hydraulic oil groove 36 is fixed on the annular sealing plate 50. The other end of the telescopic pipe 51 communicates with the oil delivery groove 49.

[0050] In this technical solution, such as Figure 8 and Figure 9 As shown, when the first connecting rod 26 moves downward, it drives the first trapezoidal block 42 to move downward. The first trapezoidal block 42 moves downward and comes into contact with the second trapezoidal block 44, causing the second trapezoidal block 44 to move to the left. This causes the second transmission rod 43 to move to the left, which in turn drives the convex plate 46 to move to the left, compressing the first spring 47. The first spring 47 stores force, and the second transmission rod 43 moves to the left, driving the first piston plate 37 to move to the left. The first piston plate 37 moves to the left, causing the hydraulic oil inside the first hydraulic oil tank 36 to pass through the telescopic pipe 51. The oil supply groove 49 is filled into the second hydraulic oil groove 38, causing the second piston plate 39 to move downward and compress the second spring 48, so that the second spring 48 stores force. The downward movement of the second piston plate 39 drives the second grinding disc 41 to move through the second connecting rod 40, so that the second grinding disc 41 contacts the circumferential surface of the motor shaft 58. Thus, when the motor shaft 58 rotates, the second grinding disc 41 is used to grind the circumferential surfaces at both ends of the motor shaft 58, thereby increasing the grinding surface and facilitating simultaneous grinding of multiple positions of the motor shaft 58, resulting in high grinding efficiency.

[0051] In this technical solution, the annular sealing sheet 50 is configured as an annular structure, which can rotate relative to the rotating ring 31. The annular sealing sheet 50 is sealed with the first hydraulic oil groove 36, so that when the position of the telescopic tube 51 is not fixed, the annular sealing sheet 50 can rotate relative to the rotating ring 31, thereby maintaining the sealing effect.

[0052] Example 4 is an improvement upon Example 3. For details, please refer to [link / reference]. Figures 1-12 The outer surface of the third sleeve 35 is fixed with a second sliding rod 52. The outer surface of the moving ring 21 is provided with a second annular groove 53. The inner wall of the second annular groove 53 is provided with a wavy groove 54. The end of the second sliding rod 52 is fixed with a third sliding protrusion 55. The third sliding protrusion 55 is slidably disposed in the wavy groove 54. The bottom of the third sleeve 35 is fixed with a slider 56. The surface of the groove 6 is fixed with a slide rail 57 for the slider 56 to slide.

[0053] In this technical solution, when the motor shaft 58 rotates, the second sleeve 8 will drive the moving ring 21 to rotate around the first sleeve 7. At this time, the second slide rod 52 slides inside the second annular groove 53, and the second slide rod 52 drives the third sliding protrusion 55 to slide inside the wave-shaped groove 54, so that the third sliding protrusion 55 can move back and forth. The third sliding protrusion 55 drives the second slide rod 52 to move back and forth, and the second slide rod 52 drives the third sleeve 35 to move back and forth. At the same time, the third sleeve 35 drives the slider 56 to slide back and forth on the slide rail 57, increasing the stability of the movement of the third sleeve 35. When the third sleeve 35 moves back and forth, it drives the second grinding disc 41 to move back and forth, so that when the second grinding disc 41 grinds the circumferential surface of the motor shaft 58, the back and forth movement increases the grinding range of the circumferential surface of the motor shaft 58, resulting in a better grinding effect.

[0054] In this technical solution, the second grinding disc 41 is set as a semi-circular disc. The two sets of second grinding discs 41 cover the motor shaft 58 to further increase the grinding effect. The telescopic tube 51 includes an inner tube and an outer tube. The inner tube and the outer tube are slidably connected and the connection between the inner tube and the outer tube is sealed. When the third sleeve moves left and right, the outer tube moves left and right relative to the inner tube, so that there will be no jamming.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A grinding device for machining motor shafts, comprising two sets of positioning discs (1), characterized in that: Both sets of positioning discs (1) are fixed with a first grinding disc (2) for grinding the end face of the motor shaft (58). A feeding disc (3) is rotatably arranged between the two sets of positioning discs (1). One set of positioning discs (1) is provided with a feeding port (4), and both sets of positioning discs (1) are provided with a discharging port (5). The outer surface of the feeding disc (3) is provided with several sets of grooves (6). Two sets of first sleeves (7) for inserting the motor shaft (58) are fixed in each of the several sets of grooves (6). A second sleeve (8) is provided between the two sets of first sleeves (7). A positioning clamp (9) is provided inside the second sleeve (8). A first annular groove (10) is provided on the two sets of positioning discs (1). A first slide rod (11) is slidably provided in the first annular groove (10). The positioning clamp (9) clamps and fixes the motor shaft (58) by sliding inside the first annular groove (10) through the first slide rod (11).

2. The grinding equipment for machining motor shafts according to claim 1, characterized in that: The bottom of the positioning disc (1) is fixed with a fixed base (12), and a first electric push rod (13) and a second electric push rod (14) are fixed on the fixed base (12). The output end of the first electric push rod (13) is fixed with a first push plate (15) for moving towards the feed port (4), and the output end of the second electric push rod (14) is fixed with a second push plate (16) for moving towards the discharge port (5). A guide plate (17) is fixed between the feed port (4) and the first electric push rod (13). A servo motor (18) is fixed on the outer surface of one of the positioning discs (1), and the output end of the servo motor (18) is fixedly connected to the conveying disc (3).

3. The grinding equipment for machining motor shafts according to claim 2, characterized in that: A guide groove (19) is provided on the inner wall of the first annular groove (10), and a first sliding protrusion (20) is fixed at the end of the first slide rod (11). The first sliding protrusion (20) is slidably disposed in the guide groove (19). The guide groove (19) includes a first horizontal part (191), a first inclined part (192), a second horizontal part (193), and a second inclined part (194) arranged in sequence.

4. The grinding equipment for machining motor shafts according to claim 3, characterized in that: A movable ring (21) is movably disposed on the first sleeve (7). A slot (22) is provided on the outer surface of the second sleeve (8). A plug rod (23) is fixed on the inner surface of the movable ring (21). The plug rod (23) is slidably inserted into the slot (22). A first sliding groove (24) is provided at the end of the plug rod (23). An inclined groove (25) is provided on the inner wall of the first sliding groove (24). A first connecting rod (26) is fixed on the positioning clamp (9). The first connecting rod (26) is slidably disposed inside the second sleeve (8). A first transmission rod (27) is fixed at the end of the first connecting rod (26). A second sliding protrusion (28) is fixed at the end of the first transmission rod (27). The second sliding protrusion (28) is slidably disposed in the inclined groove (25).

5. The grinding equipment for machining motor shafts according to claim 4, characterized in that: The outer surface of the moving ring (21) is provided with a limiting ring groove (29), and the end of the first slide rod (11) is fixed with a limiting ball (30), which is slidably disposed in the limiting ring groove (29).

6. The grinding equipment for machining motor shafts according to claim 5, characterized in that: The second sleeve (8) has rotating rings (31) fixed on both sides. The rotating rings (31) are rotatably disposed inside the first sleeve (7). The outer surface of the second sleeve (8) is fixed with a toothed ring (32). An arc-shaped toothed plate (33) is provided between the two sets of positioning discs (1). The toothed ring (32) meshes with the arc-shaped toothed plate (33). A fixing rod (34) is fixed between the outer surface of the arc-shaped toothed plate (33) and the positioning disc (1).

7. The grinding equipment for machining motor shafts according to claim 6, characterized in that: A third sleeve (35) is provided on both sides of the groove (6). A first hydraulic oil groove (36) is provided inside the rotating ring (31). A first piston plate (37) is elastically connected inside the first hydraulic oil groove (36). A second hydraulic oil groove (38) communicating with the first hydraulic oil groove (36) is provided inside the third sleeve (35). A second piston plate (39) is elastically connected inside the second hydraulic oil groove (38). A second connecting rod (40) is fixed on the second piston plate (39). A second grinding disc (41) is fixed at the other end of the second connecting rod (40).

8. The grinding equipment for machining motor shafts according to claim 7, characterized in that: A first trapezoidal block (42) is fixed on the first connecting rod (26), a second transmission rod (43) is fixed on the outer surface of the first piston plate (37), a second trapezoidal block (44) is fixed at the end of the second transmission rod (43), a spring groove (45) is provided inside the rotating ring (31), a protrusion plate (46) is fixed on the circumference of the second transmission rod (43), a first spring (47) is fixed between the protrusion plate (46) and the inner wall of the spring groove (45), and a second spring (48) is fixed between the lower surface of the second piston plate (39) and the inner wall of the second hydraulic oil groove (38).

9. The grinding equipment for machining motor shafts according to claim 8, characterized in that: The third sleeve (35) has an oil delivery groove (49) inside that communicates with the second hydraulic oil groove (38). One side of the first hydraulic oil groove (36) is sealed with an annular sealing plate (50). A telescopic pipe (51) that communicates with the first hydraulic oil groove (36) is fixed on the annular sealing plate (50). The other end of the telescopic pipe (51) communicates with the oil delivery groove (49).

10. The grinding equipment for machining motor shafts according to claim 9, characterized in that: The outer surface of the third sleeve (35) is fixed with a second slide rod (52), the outer surface of the moving ring (21) is provided with a second annular groove (53), the inner wall of the second annular groove (53) is provided with a wave-shaped groove (54), the end of the second slide rod (52) is fixed with a third sliding protrusion (55), the third sliding protrusion (55) is slidably disposed in the wave-shaped groove (54), the bottom of the third sleeve (35) is fixed with a slider (56), and the surface of the groove (6) is fixed with a slide rail (57) for the slider (56) to slide.

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