Polishing equipment for motor shaft machining

Abstract

The invention relates to the technical field of motor shaft machining, and discloses grinding equipment for motor shaft machining, which comprises two groups of positioning discs, first grinding pieces for grinding the end face of a motor shaft are fixed on the two groups of positioning discs, and a 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 used for allowing the motor shaft to be inserted 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 fed into the first sleeve and the second sleeve on the material conveying disc, then the motor shaft is clamped and fixed through rotation of the material conveying disc, after the motor shaft is clamped and fixed, the motor shaft passes through the first grinding piece through rotation of the material conveying disc, and the end face of the motor shaft is ground through the first grinding piece; therefore, the grinding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor shaft processing, and specifically relates to a grinding device for motor shaft processing. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy. As a link for the electro-mechanical energy conversion between the motor and the device, the motor shaft is an important part of the motor. Therefore, the processing quality of the motor shaft has an important impact on the performance of the motor.

[0003] When processing the motor shaft, it is necessary to grind the motor shaft. In order to ensure its geometric dimensions and roundness accuracy and improve the working reliability and durability of the motor shaft, it is generally necessary to grind the end face of the motor shaft. The end face of the motor shaft is the plane perpendicular to the axis. When grinding the end face of the motor shaft, manual loading and unloading are often carried out, which is time-consuming and laborious. Moreover, when using the grinding disc to grind the motor shaft, generally, the motor shafts are ground separately one by one. After one motor shaft is ground, another motor shaft is ground, resulting in low grinding efficiency. Summary of the Invention

[0004] The present invention provides a grinding device for motor shaft processing. Through the arranged feeding tray, multiple groups of motor shafts can be placed on the feeding tray. Through the rotation of the feeding tray, the fixed motor shafts are driven to rotate, so that the motor shafts pass through the first grinding disc to complete the grinding of the end faces of the motor shafts, solving the problems of time-consuming, laborious, and low grinding efficiency mentioned in the above background art.

[0005] The present invention provides the following technical solution: A grinding device for motor shaft processing, including two positioning discs. First grinding discs for grinding the end faces of the motor shafts are fixed on both of the two positioning discs. A feeding tray is rotatably arranged between the two positioning discs. A feeding port is opened on one of the two positioning discs, and discharging ports are opened on both of the two positioning discs;

[0006] A plurality of groups of grooves are opened on the outer surface of the feeding tray. Two first sleeves for inserting the motor shafts are fixed in each of the plurality of groups of grooves. A second sleeve is arranged between the two first sleeves. A positioning clamp plate is arranged inside the second sleeve. First annular chutes are opened on the two positioning discs. First sliding rods are slidably arranged in the first annular chutes. The positioning clamp plate slides in the first annular chutes through the first sliding rods to clamp and fix the motor shafts.

[0007] As an alternative solution of the grinding device for machining the motor shaft of the present invention, a fixed base is fixed at the bottom of the positioning disc. 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 push plate for moving towards the feeding port, and the output end of the second electric push rod is fixed with a second push plate for moving towards the discharging port. A guide plate is fixed between the feeding port and the first electric push rod. A servo motor is fixed on the outer surface of one of the positioning discs, and the output end of the servo motor is fixedly connected to the material conveying disc.

[0008] As an alternative solution of the grinding device for machining the motor shaft of the present invention, a guide groove is formed on 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 slidably arranged in the guide groove. The guide groove includes a first horizontal portion, a first inclined portion, a second horizontal portion, and a second inclined portion that are sequentially connected and arranged.

[0009] As an alternative solution of the grinding device for machining the motor shaft of the present invention, a moving ring is movably arranged on the first sleeve. A slot is formed on the outer surface of the second sleeve. A plug rod is fixed on the inner surface of the moving ring, and the plug rod is slidably inserted into the slot. A first chute is formed at the end of the plug rod, and an inclined groove is formed on the inner wall of the first chute. A first connecting rod is fixed on the positioning clamping plate, and the first connecting rod is slidably arranged inside the second sleeve. A first transmission rod is fixed at the end of the first connecting rod, and a second sliding protrusion is fixed at the end of the first transmission rod. The second sliding protrusion is slidably arranged in the inclined groove.

[0010] As an alternative solution of the grinding device for machining the motor shaft of the present invention, a limiting ring groove is formed on the outer surface of the moving ring. A limiting ball is fixed at the end of the first sliding rod, and the limiting ball is slidably arranged in the limiting ring groove.

[0011] As an alternative solution of the grinding device for machining the motor shaft of the present invention, rotating rings are fixed on both sides of the second sleeve. The rotating rings are rotatably arranged inside the first sleeve. A toothed ring is fixed on the outer surface of the second sleeve. An arc-shaped toothed plate is arranged between the two positioning discs. The toothed ring meshes with the arc-shaped toothed plate, and a fixing rod is fixed between the outer surface of the arc-shaped toothed plate and the positioning disc.

[0012] As an alternative solution for the grinding device used in the processing of the motor shaft of the present invention, third sleeves are provided on both sides of the groove. A first hydraulic oil groove is formed inside the rotating ring. A first piston plate is elastically connected inside the first hydraulic oil groove. A second hydraulic oil groove communicating with the first hydraulic oil groove is formed inside the third sleeve. A second piston plate is elastically connected inside the second hydraulic oil groove. A second connecting rod is fixed on the second piston plate, and the other end of the second connecting rod is fixed with a second grinding piece.

[0013] As an alternative solution for the grinding device used in the processing of the motor shaft of the present invention, a first trapezoidal block is fixed on the first connecting rod. A second transmission rod is fixed on the outer surface of the first piston plate. A second trapezoidal block is fixed at the end of the second transmission rod. A spring groove is formed inside the rotating ring. A convex plate is fixed on the circumference of the second transmission rod. A first spring is fixed between the convex plate and the inner wall of the spring groove. A 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 alternative solution for the grinding device used in the processing of the motor shaft of the present invention, an oil delivery groove communicating with the second hydraulic oil groove is formed inside the third sleeve. An annular sealing piece is hermetically arranged on one side of the first hydraulic oil groove. A telescopic tube communicating with the first hydraulic oil groove is fixed on the annular sealing piece, and the other end of the telescopic tube communicates with the oil delivery groove.

[0015] As an alternative solution for the grinding device used in the processing of the motor shaft of the present invention, a second sliding rod is fixed on the outer surface of the third sleeve. A second annular sliding groove is formed on the outer surface of the moving ring. A wavy groove is formed on the inner wall of the second annular sliding groove. A third sliding protrusion is fixed at the end of the second sliding rod, and the third sliding protrusion is slidably arranged in the wavy groove.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the grinding equipment for machining the motor shaft, when grinding the motor shaft, first, the first electric push rod is used to push the first feeding plate to push the motor shaft into the feeding tray. Then, the servo motor drives the feeding tray to rotate, causing the first sliding rod to slide inside the first annular chute, so that the first sliding rod pushes the moving ring to slide on the first sleeve, and the inserting rod slides inside the inserting slot, prompting the first connecting rod to drive the positioning clamping plate to move, so that the positioning clamping plate clamps and fixes the motor shaft. Thus, when the feeding tray 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, only feeding is required through the feeding port, and the grinding work of the end face of the motor shaft can be completed while the feeding tray is rotating. This is not only convenient for grinding but also has a higher grinding efficiency.

[0018] 2. In the grinding equipment for machining the motor shaft, through the arranged toothed ring and arc-shaped toothed plate, when the motor shaft rotates with the feeding tray, the toothed ring will engage with the arc-shaped toothed plate. After the toothed ring engages 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, due to the self-rotation of the motor shaft, the grinding effect is further improved.

[0019] 3. In the grinding equipment for machining the motor shaft, when the positioning clamping plate clamps and fixes the motor shaft, the first connecting rod drives the second transmission rod to move by the mutual contact of the first trapezoidal block and the second trapezoidal block. The movement of the second transmission rod drives the first piston plate to fill the hydraulic oil in the first hydraulic oil tank into the second hydraulic oil tank, so that the second piston plate drives the second connecting rod to move, and the second connecting rod drives the second grinding disc to move 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, thus increasing the grinding position of the motor shaft and being beneficial to improving the grinding efficiency;

[0020] To further improve the grinding effect, when the second grinding disc is grinding, the second sliding rod slides inside the second annular groove, so that the third sliding protrusion slides inside the wavy groove, and the third sliding protrusion can drive the second sliding rod to move left and right reciprocally. The second sliding rod drives the third sleeve to move left and right reciprocally, so that the second grinding disc moves left and right reciprocally. The circumferential surface of the motor shaft is ground by the left and right reciprocal movement of the second grinding disc, and the grinding effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0023] Figure 3 Schematic structural diagram of the material conveying tray part of the present invention.

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

[0025] Figure 5 Schematic top view structural diagram of the material conveying tray of the present invention.

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

[0027] Figure 7 Internal structure cross-sectional view of the material conveying tray of the present invention.

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

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

[0030] Figure 10 Schematic track diagram of the guiding groove in the present invention.

[0031] Figure 11 Schematic track diagram of the wavy groove in the present invention.

[0032] Figure 12 Schematic structural diagram of the connection between the annular sealing piece and the telescopic pipe in the present invention.

[0033] In the figure: 1, positioning disc; 2, first grinding disc; 3, material conveying disc; 4, feeding port; 5, discharging port; 6, groove; 7, first sleeve; 8, second sleeve; 9, positioning clamping plate; 10, first annular chute; 11, first sliding rod; 12, fixed base; 13, first electric push rod; 14, second electric push rod; 15, first pushing plate; 16, second pushing plate; 17, material guiding plate; 18, servo motor; 19, guiding 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, inserting rod; 24, first chute; 25, inclined chute; 26, first connecting rod; 27, first transmission rod; 28, second sliding protrusion; 29, limiting ring groove; 30, limiting ball; 31, rotating ring; 32, toothed ring; 33, arc-shaped toothed plate; 34, fixed rod; 35, third sleeve; 36, first hydraulic oil tank; 37, first piston plate; 38, second hydraulic oil tank; 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, convex plate; 47, first spring; 48, second spring; 49, oil conveying groove; 50, annular sealing sheet; 51, telescopic pipe; 52, second sliding rod; 53, second annular chute; 54, wavy groove; 55, third sliding protrusion; 56, slider; 57, slide rail; 58, motor shaft. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0035] Example 1, please refer to Figures 1 - 12 , a grinding device for machining a motor shaft, including two groups of positioning discs 1, and first grinding discs 2 for grinding the end faces of the motor shafts 58 are fixed on both groups of positioning discs 1. A material conveying disc 3 is rotatably arranged between the two groups of positioning discs 1. A feeding port 4 is opened on one of the two groups of positioning discs 1, and discharging ports 5 are opened on both groups of positioning discs 1;

[0036] The outer surface of the material feeding tray 3 is provided with several groups of grooves 6. Two first sleeves 7 for inserting the motor shaft 58 are fixed in each of the several groups of grooves 6. A second sleeve 8 is arranged between the two first sleeves 7. A positioning clamping plate 9 is arranged inside the second sleeve 8. First annular chutes 10 are formed in the two positioning discs 1. First sliding rods 11 are slidably arranged in the first annular chutes 10. The positioning clamping plate 9 clamps and fixes the motor shaft 58 by sliding inside the first annular chutes 10 through the first sliding rods 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 to the fixed base 12. A first pushing plate 15 for moving towards the feeding port 4 is fixed to the output end of the first electric push rod 13. A second pushing plate 16 for moving towards the discharging port 5 is fixed to the output end of the second electric push rod 14. A guiding plate 17 is fixed between the feeding port 4 and the first electric push rod 13. A servo motor 18 is fixed to the outer surface of one of the positioning discs 1. The output end of the servo motor 18 is fixedly connected to the material feeding tray 3;

[0038] A guiding groove 19 is formed in the inner wall of the annular chute. A first sliding protrusion 20 is fixed to the end of the first sliding rod 11. The first sliding protrusion 20 is slidably arranged in the guiding groove 19. The guiding groove 19 includes a first horizontal part 191, a first inclined part 192, a second horizontal part 193 and a second inclined part 194 which are connected in sequence;

[0039] A moving ring 21 is movably arranged on the first sleeve 7. A slot 22 is formed in the outer surface of the second sleeve 8. A plug rod 23 is fixed to the inner surface of the moving ring 21. The plug rod 23 is slidably inserted into the slot 22. A first chute 24 is formed at the end of the plug rod 23. An inclined groove 25 is formed in the inner wall of the first chute 24. A first connecting rod 26 is fixed to the positioning clamping plate 9. The first connecting rod 26 is slidably arranged inside the second sleeve 8. A first transmission rod 27 is fixed to the end of the first connecting rod 26. A second sliding protrusion 28 is fixed to the end of the first transmission rod 27. The second sliding protrusion 28 is slidably arranged in the inclined groove 25.

[0040] In this technical solution, when grinding the motor shaft 58, first, the motor shaft 58 is fed onto the guiding plate 17, and then the first electric push rod 13 is used to push the first pushing plate 15 to move, so that the first pushing plate 15 pushes the motor shaft 58 into the material feeding tray 3 through the feeding port 4, enabling the motor shaft 58 to pass through the first sleeve 7. At this time, both ends of the motor shaft 58 are located between the two positioning discs 1. The first electric push rod 13 resets. The servo motor 18 rotates to drive the material feeding tray 3 to rotate, rotating the position of the next first sleeve 7 to the feeding port 4, and repeating the above operation for feeding the motor shaft 58;

[0041] After the motor shaft 58 is inserted into the first sleeve 7 and located between the two groups of positioning discs 1, the material feeding disc 3 rotates to drive the first sleeve 7 and the second sleeve 8 to rotate, and at the same time drives the first sliding rod 11 to slide inside the first annular chute 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 slide along the first inclined portion 192, as Figure 10 and Figure 8 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 and pushes the moving ring 21 to move to the right. The moving ring 21 moves to the right and drives the insertion rod 23 to move to the right in the insertion slot 22. The insertion rod 23 moves to the right, causing the first transmission rod 27 to move to the left in the first chute 24. Due to the resistance of the inclined chute 25, the second sliding protrusion 28 slides inside the inclined chute 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 clamping plate 9 to move downward, so that the positioning clamping plate 9 clamps and fixes the motor shaft 58. Then the first sliding protrusion 20 slides to the second horizontal portion 193 and slides along the second horizontal portion 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 two ends of the motor shaft 58 are ground by the first grinding disc 2. As Figure 1 shown, the first grinding disc 2 is of an arc structure, so that when the motor shaft 58 rotates with the material feeding disc 3, the first grinding disc 2 can always grind the two ends of the motor shaft 58 until the two ends of the motor shaft 58 pass the first grinding disc 2, and the grinding is completed;

[0042] When both ends of the motor shaft 58 pass the first grinding disc 2, the first sliding protrusion 20 slides from the second horizontal portion 193 to the second inclined portion 194 and slides along the second inclined portion 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. The insertion rod 23 drives the positioning clamping plate 9 to reset, so that the positioning clamping plate 9 no longer clamps the motor shaft 58. Then the first sliding protrusion 20 slides into the first horizontal portion 191 again until the material feeding disc 3 drives the motor shaft 58 to rotate to the blanking port 5. The servo motor 18 stops. The second electric push rod 14 is used to push the second pushing plate 16 to move, and the second pushing plate 16 is extended into the blanking port 5 of one side positioning disc 1 to push the motor shaft 58 out of the blanking port 5 of the other side positioning disc 1. At the same time, the motor shaft 58 is loaded at the feeding 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 the work efficiency.

[0043] Embodiment 2. When the motor shaft 58 rotates with the material feeding tray 3, the first grinding piece 2 grinds the motor shaft 58. Since only relative sliding occurs between the motor shaft 58 and the first grinding piece 2, the grinding effect on the end face of the motor shaft 58 is poor. To solve this problem, this embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figures 1 - 12 , a limiting ring groove 29 is formed on the outer surface of the moving ring 21, a limiting ball 30 is fixed to the end of the first sliding rod 11, and the limiting ball 30 is slidably arranged in the limiting ring groove 29;

[0044] Rotating rings 31 are fixed to both sides of the second sleeve 8, the rotating rings 31 are rotatably arranged inside the first sleeve 7, a toothed ring 32 is fixed to the outer surface of the second sleeve 8, an arc-shaped toothed plate 33 is arranged between the two positioning discs 1, the toothed ring 32 meshes with the arc-shaped toothed plate 33, and fixing rods 34 are fixed between the outer surface of the arc-shaped toothed plate 33 and the positioning disc 1.

[0045] In this technical solution, when the motor shaft 58 is clamped and fixed by the positioning clamp 9, the motor shaft 58 rotates with the material feeding tray 3. When the motor shaft 58 rotates to the lower part 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 clamp 9 to rotate, and the positioning clamp 9 drives the clamped motor shaft 58 to rotate, so that when the two ends of the motor shaft 58 are ground by the first grinding piece 2, the grinding effect on the end face of the motor shaft 58 can be increased by self-rotation;

[0046] By providing the rotating rings 31, the stability of the second sleeve 8 rotating relative to the first sleeve 7 can be increased. And by providing the limiting balls 30 and the limiting ring grooves 29, when the first sliding rod 11 moves left and right, it can drive the moving ring 21 to move synchronously, and the limiting balls 30 can rotate inside the limiting ring grooves 29, so that the first sliding rod 11 will not affect the rotation of the moving ring 21 on the first sleeve 7 and will not affect the sliding of the first sliding rod 11 in the first annular sliding groove 10.

[0047] Embodiment 3. Since when the motor shaft 58 is in use, the circumferential surfaces at both ends of the motor shaft 58 need to be connected to other parts. For the convenience of installation, the circumferential surface of the motor shaft 58 also needs to be ground. If the end face and the circumferential surface of the motor shaft 58 are ground separately, it will increase the work complexity and be time-consuming and laborious. To solve this problem, this embodiment is an improvement based on Embodiment 2. Specifically, please refer to Figures 1 - 12, third sleeves 35 are arranged on both sides of the groove 6. A first hydraulic oil groove 36 is formed 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 formed 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 piece 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 formed inside the rotating ring 31. A convex plate 46 is fixed on the circumference of the second transmission rod 43. A first spring 47 is fixed between the convex plate 46 and the inner wall of the spring groove 45. 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] An oil delivery groove 49 communicating with the second hydraulic oil groove 38 is formed inside the third sleeve 35. An annular sealing piece 50 is hermetically arranged on one side of the first hydraulic oil groove 36. A telescopic pipe 51 communicating with the first hydraulic oil groove 36 is fixed on the annular sealing piece 50. The other end of the telescopic pipe 51 communicates with the oil delivery groove 49.

[0050] In this technical solution, as Figure 8 and Figure 9 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 abuts against the second trapezoidal block 44, prompting the second trapezoidal block 44 to move leftward, driving the second transmission rod 43 to move leftward, so that the second transmission rod 43 drives the convex plate 46 to move leftward, compressing the first spring 47, and the first spring 47 stores energy. The second transmission rod 43 moves leftward and drives the first piston plate 37 to move leftward. The first piston plate 37 moves leftward and fills the hydraulic oil inside the first hydraulic oil groove 36 into the second hydraulic oil groove 38 through the telescopic pipe 51 and the oil delivery groove 49, causing the second piston plate 39 to move downward and compressing the second spring 48, so that the second spring 48 stores energy. The second piston plate 39 moves downward and drives the second grinding piece 41 to move through the second connecting rod 40, so that the second grinding piece 41 contacts the circumferential surface of the motor shaft 58. Thus, when the motor shaft 58 rotates on its own, the circumferential surfaces at both ends of the motor shaft 58 are ground by the second grinding piece 41, thereby increasing the grinding surface, facilitating simultaneous grinding of multiple positions of the motor shaft 58, and having high grinding efficiency;

[0051] In this technical solution, the annular sealing piece 50 is arranged in an annular structure and can rotate relative to the rotating ring 31. Moreover, the annular sealing piece 50 is sealed with the first hydraulic oil tank 36. When the position of the telescopic tube 51 is fixed, the annular sealing piece 50 can rotate relative to the rotating ring 31, thereby maintaining the sealing effect.

[0052] Example 4. This example is an improvement based on Example 3. Specifically, please refer to Figures 1 - 12 , a second sliding rod 52 is fixed on the outer surface of the third sleeve 35. A second annular sliding groove 53 is formed on the outer surface of the moving ring 21. A wavy groove 54 is formed on the inner wall of the second annular sliding groove 53. A third sliding protrusion 55 is fixed at the end of the second sliding rod 52. The third sliding protrusion 55 is slidably arranged in the wavy groove 54. A slider 56 is fixed at the bottom of the third sleeve 35. A slide rail 57 for the slider 56 to slide is fixed on the surface of the groove 6.

[0053] In this technical solution, when the motor shaft 58 rotates self - sufficiently, the second sleeve 8 drives the moving ring 21 to rotate around the first sleeve 7. At this time, the second sliding rod 52 slides inside the second annular sliding groove 53. The second sliding rod 52 drives the third sliding protrusion 55 to slide inside the wavy groove 54, so that the third sliding protrusion 55 can perform left - and - right reciprocating motion. The third sliding protrusion 55 drives the second sliding rod 52 to perform left - and - right reciprocating motion. The second sliding rod 52 drives the third sleeve 35 to perform left - and - right reciprocating motion. At the same time, the third sleeve 35 drives the slider 56 to slide reciprocally on the slide rail 57, increasing the stability of the movement of the third sleeve 35. When the third sleeve 35 performs left - and - right reciprocating motion, it drives the second grinding piece 41 to perform left - and - right reciprocating motion. When the second grinding piece 41 grinds the circumferential surface of the motor shaft 58, through the left - and - right reciprocating motion, the grinding range of the circumferential surface of the motor shaft 58 is increased, and the grinding effect is better;

[0054] In this technical solution, the second grinding piece 41 is arranged as a semi - circular piece. The motor shaft 58 is covered by two groups of second grinding pieces 41, further increasing the grinding effect. Moreover, the telescopic tube 51 includes an inner tube and an outer tube. The inner tube is slidably connected to the outer tube, 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 the situation of jamming will not occur.

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

[0056] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A grinding device for motor shaft processing, comprising two sets of positioning discs (1), characterized in that: A first grinding sheet (2) for grinding the end surface of the motor shaft (58) is fixed on both groups of the positioning discs (1); a feed disc (3) is rotatably arranged between the two groups of the positioning discs (1); a feed port (4) is provided on one group of the positioning discs (1); and a discharge port (5) is provided on both groups of the positioning discs (1); The outer surface of the feed tray (3) is provided with a plurality of groups of grooves (6), and two groups of first sleeves (7) for inserting the motor shaft (58) are fixed in the plurality of groups of grooves (6). A second sleeve (8) is arranged between the two groups of the first sleeves (7), and a positioning clamping plate (9) is arranged inside the second sleeve (8). The two groups of positioning discs (1) are provided with a first annular groove (10), and a first sliding rod (11) is slidably arranged in the first annular groove (10). The positioning clamping plate (9) slides inside the first annular groove (10) through the first sliding rod (11) to clamp and fix the motor shaft (58).

2. The motor shaft grinding equipment according to claim 1, characterized in that: A fixed base (12) is fixed at the bottom of the positioning disc (1), and 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 toward the feed port (4) is fixed at the output end of the first electric push rod (13); a second push plate (16) for moving toward the discharge port (5) is fixed at 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 on the outer surface of one group of the positioning discs (1), and the output end of the servo motor (18) is fixedly connected to the feed tray (3).

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

4. The motor shaft grinding equipment according to claim 3, characterized in that: A movable ring (21) is movably arranged on the first sleeve (7), a slot (22) is provided on the outer surface of the second sleeve (8), an insertion rod (23) is fixed on the inner surface of the movable ring (21), the insertion rod (23) is slidably inserted in the slot (22), a first sliding groove (24) is provided at the end of the insertion 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 arranged 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), and the second sliding protrusion (28) is slidably arranged in the inclined groove (25).

5. The motor shaft grinding equipment according to claim 4, characterized in that: A limiting ring groove (29) is provided on the outer surface of the movable ring (21), a limiting ball (30) is fixed to the end of the first sliding rod (11), and the limiting ball (30) is slidably disposed in the limiting ring groove (29).

6. The motor shaft grinding device according to claim 5, characterized in that: Rotating rings (31) are fixed on both sides of the second sleeve (8), and the rotating rings (31) are rotatably arranged 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 arranged between the two groups of positioning discs (1). The toothed ring (32) meshes with the arc-shaped toothed plate (33), and a fixing rod (34) is fixed between the outer surface of the arc-shaped toothed plate (33) and the positioning disc (1).

7. The motor shaft grinding device 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 to the inside of the first hydraulic oil groove (36); a second hydraulic oil groove (38) connected to the first hydraulic oil groove (36) is provided inside the third sleeve (35); a second piston plate (39) is elastically connected to the inside of the second hydraulic oil groove (38); a second connecting rod (40) is fixed to the second piston plate (39); a second grinding plate (41) is fixed to the other end of the second connecting rod (40).

8. The motor shaft grinding device 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 to the end of the second transmission rod (43), a spring groove (45) is opened inside the rotating ring (31), a convex plate (46) is fixed on the circumference of the second transmission rod (43), a first spring (47) is fixed between the convex 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 motor shaft grinding device according to claim 8, characterized in that: The third sleeve (35) has an oil delivery groove (49) in communication with the second hydraulic oil groove (38) formed inside, and an annular sealing sheet (50) is provided on one side of the first hydraulic oil groove (36) for sealing, and a telescopic tube (51) in communication with the first hydraulic oil groove (36) is fixed on the annular sealing sheet (50), and the other end of the telescopic tube (51) is in communication with the oil delivery groove (49).

10. The motor shaft grinding device according to claim 9, characterized in that: A second slide bar (52) is fixed on the outer surface of the third sleeve (35), a second annular slide groove (53) is provided on the outer surface of the movable ring (21), a wavy groove (54) is provided on the inner wall of the second annular slide groove (53), a third sliding protrusion (55) is fixed on the end of the second slide bar (52), and the third sliding protrusion (55) is slidably arranged in the wavy groove (54), a slider (56) is fixed on the bottom of the third sleeve (35), and a slide rail (57) for the slider (56) to slide is fixed on the surface of the groove (6).

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