A motor rotor processing device and its processing method

Abstract

The present invention discloses a motor rotor processing device and a processing method thereof in the technical field of motor rotor processing, including a workbench. A limiting unit is arranged inside the workbench. An execution unit and a driving unit are respectively arranged at both ends of the limiting unit. And a power unit is connected below the execution unit. A grinding unit is arranged above the workbench. By using the limiting unit capable of performing circumferential clamping and limiting in cooperation with the execution unit capable of performing horizontal clamping and limiting, the present invention can realize multi-directional limiting and fixing operations during the grinding process of the rotor, strengthen the stability during the rotor grinding work process, and ensure the smooth progress of the grinding work.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotor processing, and particularly to a motor rotor processing device and a processing method thereof. Background Art

[0002] A motor rotor is a rotating component in a motor and is a device for realizing the conversion between electrical energy and mechanical energy and between mechanical energy and electrical energy. Most rotors exist in a cylindrical structure. When manufacturing and processing a motor rotor, multiple processes are required, such as turning the outer diameter of the rotor, removing burrs on the outer diameter, grinding the bearing journals, milling keyways, dynamic balancing, etc., to achieve the predetermined dimensions and performance, reduce motor losses, and improve motor efficiency.

[0003] Among them, in the processing operation of grinding burrs on the outer diameter of the rotor, the rotor needs to be limited and fixed first, and then a grinding device is used to grind its outer wall. Since the overall structure of the rotor is cylindrical, existing processing devices mostly fix the rotor by clamping both ends of the rotor from both sides. The clamping method from both sides can only provide the limiting force in the horizontal direction from both sides, while the grinding device usually approaches the rotor from a direction perpendicular to the axial direction of the rotor. Therefore, the grinding device approaching the rotor from the side will exert a squeezing force in the vertical direction on the rotor, which may cause the rotor to be squeezed and deflected, and thus the grinding effect cannot be effectively guaranteed. At the same time, there are also measures to limit and fix the rotor in the circumferential direction, but the circumferential fixing method requires wrapping a certain range of the outer wall of the rotor, and the wrapped area cannot be ground, resulting in a grinding dead angle, which will also make the grinding effect unable to be guaranteed, and additional grinding operations need to be carried out on the dead angle, which relatively affects the grinding efficiency. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing motor rotor processing devices, the present invention hereby provides a motor rotor processing device and a processing method thereof to solve such problems.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A motor rotor processing device includes a workbench, a limiting unit is arranged inside the workbench, an execution unit and a driving unit are respectively arranged at both ends of the limiting unit, and a power unit is connected below the execution unit, and a grinding unit is arranged above the workbench;

[0006] The limiting unit includes two groups of symmetrically arranged bases, and one end of the execution unit is slidably inserted into the axis of one of the groups of bases, three groups of clamping parts are equally divided in an inverted T shape on the base, a connecting rod is rotatably connected between the clamping parts and the execution unit, and an arc frame is fixedly arranged on the lowest group of clamping parts, and the arc frame is an arc structure with an opening upward, three groups of limiting grooves are opened on the base, and the three groups of limiting grooves are equally divided around the axis of the base as the origin, and the three groups of clamping parts are correspondingly inserted into the three groups of limiting grooves;

[0007] The actuator unit includes a main body component fixedly connected to the outside of the base, a main telescopic component inserted into the main body component and extending outward to the axial center of the base, and a secondary telescopic component inserted into the main telescopic component. The outer end of the main telescopic component is equally divided into three groups of connecting ears, and one end of the connecting rod is rotatably connected to the connecting ears.

[0008] The clamping component includes a cross bar inserted into the limiting groove in a transverse direction, a clearance groove provided at one end of the limiting groove, and two groups of rollers arranged in parallel on the inner side of the cross bar.

[0009] As a preferred solution of the motor rotor processing equipment described in the present invention, a fixing bracket is provided on the roller, and the roller is rotatably connected in the fixing bracket, one end of the fixing bracket extends into the cross bar, and a spring is provided on the end of the fixing bracket extending into the cross bar.

[0010] As a preferred solution of the motor rotor processing equipment described in the present invention, the execution unit includes a cylinder body fixedly connected to the side of the base, and a receiving groove one opened in the cylinder body, and the main telescopic component is inserted into the receiving groove one, and the main body component is connected to the power unit.

[0011] As a preferred solution of the motor rotor processing equipment described in the present invention, the main telescopic component includes a main telescopic rod inserted into the receiving groove one, and the connecting ear is arranged on the outer end of the main telescopic rod, a receiving groove two is opened in the main telescopic rod, and the secondary telescopic component is inserted into the receiving groove two, and a liquid inlet with a trumpet-shaped structure is opened at the inner end of the main telescopic rod, and the liquid inlet connects the receiving groove two with the receiving groove one, and at the same time, the end of the liquid inlet with a smaller diameter is connected to the receiving groove one.

[0012] As a preferred solution of the motor rotor processing equipment described in the present invention, the secondary telescopic component includes a secondary telescopic rod inserted into the second receiving groove, an abutment plate arranged at the outer end of the secondary telescopic rod, and an abutment plate fixedly arranged on the inner side of the abutment plate and extending into the secondary telescopic rod.

[0013] As a preferred embodiment of the motor rotor processing equipment of the present invention, the power unit includes an oil pump located below the main body component, a fuel tank connected to the side of the oil pump, and an oil pipe connected between the main body component and the oil pump.

[0014] As a preferred embodiment of the motor rotor processing equipment of the present invention, the drive unit includes a motor disposed on the side of another set of bases, and a drive disk disposed inside the motor and extending to the inside of the bases, and the drive disk is rotatably connected to the axial center position of the bases.

[0015] As a preferred embodiment of the motor rotor processing equipment of the present invention, a gantry is erected on the workbench, the grinding unit is installed on the gantry, the grinding unit includes a cylinder disposed above the gantry, an extension rod disposed inside the cylinder and extending downward, a mounting bracket disposed at the lower end of the extension rod, two grinding stones disposed below the mounting bracket at an inclined angle, and a second spring located between each grinding stone and the mounting bracket.

[0016] The present invention also provides the following technical solution: a method for processing a motor rotor, including the following steps:

[0017] S1. Place the rotor to be ground into the limiting unit, and one end of the rotor abuts against the drive disk. At this time, the arc-shaped frame supports and limits the rotor inside the limiting unit.

[0018] S2. Start the power unit. The power unit injects hydraulic oil into the cylinder body through the oil pipe, forcing the main telescopic component in the cylinder body to drive the secondary telescopic component to extend outward together.

[0019] S4. The outwardly extending main telescopic component pulls the connecting rod to fold and rotate outward, and drives the three clamping components to perform translational sliding in opposite directions, thereby compressing the space between the three clamping components. Finally, the three clamping components uniformly surround and fit the outer wall of the rotor from three directions, forming circumferential direction limiting and fixing of the rotor.

[0020] S5. After the three clamping components fit the rotor, they cannot move, thereby reversely restricting the main telescopic component from extending. The power unit continues to inject hydraulic oil into the main body component, and the hydraulic oil is injected into the second receiving groove through the liquid inlet, forcing the secondary telescopic component in the second receiving groove to extend outward.

[0021] S6. The outwardly extending secondary telescopic component abuts against one end of the rotor and applies a horizontal thrust to the rotor. As the power unit continues to inject oil, finally both ends of the rotor are abutted by the secondary telescopic component and the drive disk, so that the rotor is horizontally limited and fixed between the secondary telescopic component and the drive disk.

[0022] S7. Start the grinding unit. The air cylinder presses down the mounting bracket through the extension rod, driving the two grinding stones on the bottom surface of the mounting bracket to approach the outer wall of the rotor. The two grinding stones cooperate with the corresponding second springs to change the angle and closely fit on the arc-shaped outer wall of the rotor.

[0023] S8. Start the driving unit. The motor drives the driving disc to drive the rotor to rotate. During the rotation, the arc surface of the outer wall of the rotor is in full contact with the grinding stones, and with the continuous driving of the driving unit, full grinding of the entire outer wall of the rotor is achieved.

[0024] The beneficial effects of the present invention: By setting the limiting unit capable of performing circumferential clamping and limiting in cooperation with the execution unit for horizontal clamping and limiting, multi-directional limiting and fixing operations during the grinding process of the rotor can be realized, enhancing the stability during the rotor grinding process and ensuring the smooth progress of the grinding work.

[0025] By the cooperation of the driving unit and the execution unit to drive the rotor body to rotate axially within the limiting unit, and making the grinding unit abut against the outer wall of the rotor from the gap of the limiting unit, the rotor rotating within the limiting unit can be subjected to full-round grinding by the grinding unit, and the limiting unit will not block the rotor during circumferential clamping, effectively avoiding the generation of grinding dead corners and ensuring the grinding efficiency.

[0026] At the same time, the limiting unit can adjust the circumferential clamping range according to the diameter of the rotor, and the execution unit can also adjust the distance from the driving unit according to the length dimension of the rotor to realize the adjustment of the horizontal clamping range. Through the two-way adjustment of the circumferential clamping range and the horizontal clamping range, the limiting and fixing of rotors of different specifications can be realized, significantly improving the flexibility of the device and meeting different usage requirements. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0028] Figure 1 It is the overall structure schematic diagram of the motor rotor processing equipment of the present invention.

[0029] Figure 2 It is the internal structure schematic diagram of the motor rotor processing equipment of the present invention.

[0030] Figure 3 It is the structure schematic diagram of the limiting unit of the motor rotor processing equipment of the present invention.

[0031] Figure 4This is a schematic diagram of the structural decomposition of the limiting unit of the motor rotor processing equipment of the present invention.

[0032] Figure 5 This is a schematic diagram of the structure of the clamping component of the motor rotor processing equipment of the present invention.

[0033] Figure 6 This is the motor rotor processing equipment of the present invention Figure 5 Schematic diagram of the enlarged structure at position A.

[0034] Figure 7 This is a schematic diagram of the internal structure of the execution unit of the motor rotor processing equipment of the present invention.

[0035] Figure 8 This is a schematic diagram of the structure of the grinding unit of the motor rotor processing equipment of the present invention.

[0036] Figure 9 This is a schematic diagram of the clamping state structure of the limiting unit of the motor rotor processing equipment of the present invention.

[0037] Figure 10 This is the motor rotor processing equipment of the present invention Figure 9 Schematic diagram of the enlarged structure at position B.

[0038] Reference numerals: 1, workbench; 11, gantry; 2, limiting unit; 21, base; 211, limiting groove; 22, clamping component; 221, cross bar; 222, relief groove; 223, roller; 224, fixing frame; 225, first spring; 23, connecting rod; 24, arc-shaped frame; 3, execution unit; 31, main body component; 311, cylinder block; 312, first storage groove; 32, main telescopic component; 321, main telescopic rod; 322, second storage groove; 323, liquid inlet; 324, connecting ear; 33, secondary telescopic component; 331, secondary telescopic rod; 332, abutting disc; 333, spherical shaft; 4, power unit; 41, oil pump; 42, fuel tank; 43, oil pipe; 5, drive unit; 51, motor; 52, drive disc; 6, grinding unit; 61, cylinder; 62, extension rod; 63, mounting frame; 64, grinding stone; 65, second spring; 7, rotor. Detailed Description of the Invention

[0039] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be made with reference to the accompanying drawings of the specification.

[0040] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0041] Reference Figures 1 to 10 , which is the first embodiment of the present invention, includes a motor rotor processing device, including a workbench 1. A limiting unit 2 is arranged inside the workbench 1. An execution unit 3 and a driving unit 5 are respectively arranged at both ends of the limiting unit 2. A power unit 4 is connected below the execution unit 3. A grinding unit 6 is arranged above the workbench 1. Both sides of the limiting unit 2 are fixedly connected to the workbench 1. The execution unit 3 and the power unit 4 can cooperate to form a hydraulic system;

[0042] The limiting unit 2 includes two groups of symmetrically arranged bases 21. One end of the execution unit 3 is slidably inserted into the axis center of one group of bases 21. Three clamping components 22 arranged in an inverted triangular shape and equally divided are arranged on the bases 21. A connecting rod 23 rotatably connected between the clamping component 22 and the execution unit 3, and an arc-shaped frame 24 fixedly arranged on the lowermost group of clamping components 22. The arc-shaped frame 24 is an arc-shaped structure with an upward opening. Three limiting grooves 211 are opened on the bases 21, and the three limiting grooves 211 are equally divided in a circular manner with the axis center of the bases 21 as the origin. At the same time, the three clamping components 22 are correspondingly inserted into the three limiting grooves 211;

[0043] Reference Figure 3 And Figure 9 , the three clamping components 22 are correspondingly inserted into the three limiting grooves 211. Therefore, the distribution positions and moving directions of the three clamping components 22 are affected by the three cross bars 221. So when the clamping component 22 is driven, it can move closer to or away from the axis center of the base 21 along the limiting groove 211. And the three clamping components 22 move synchronously. Therefore, the three clamping components 22 can realize the actions of synchronously gathering inward or diffusing outward along the limiting groove 211, so as to realize the function of circumferentially surrounding and clamping and limiting the rotor 7 or releasing the rotor 7;

[0044] The execution unit 3 includes a main body component 31 fixedly connected to the outside of the base 21, a main telescopic component 32 inserted into the main body component 31 and extending outward to the axis center position of the base 21, and a secondary telescopic component 33 inserted into the main telescopic component 32. Three connecting lugs 324 are equally divided at the outer end of the main telescopic component 32, and one end of the connecting rod 23 is rotatably connected to the connecting lug 324;

[0045] Reference Figure 7, the main body component 31, the main telescopic component 32, and the secondary telescopic component 33 can form a hierarchical telescopic structure. During the telescopic process of the main telescopic component 32, one end of the connecting rod 23 can be driven to move synchronously through the connecting ear 324. The connecting rod 23 is located between the clamping component 22 and the main telescopic component 32. Therefore, when the length of the connecting rod 23 connecting the clamping component 22 and the main telescopic component 32 remains unchanged, the main telescopic component 32 drives the connecting rod 23 to move. At this time, the clamping component 22 can only maintain a normal connection relationship with the main telescopic component 32 by changing the vertical distance therebetween. It can be seen that when the main telescopic component 32 performs a telescopic action, it can drive the clamping component 22 to change its position in the vertical direction through the connecting rod 23. The clamping component 22 moving in the vertical direction can approach or move away from the outer wall of the rotor 7. Coupled with the fact that the three groups of clamping components 22 are simultaneously driven by the main telescopic component 32 through their respective connecting rods 23 to move synchronously, it can be concluded that the main telescopic component 32 performing a telescopic action can synchronously drive the three groups of clamping components 22 to perform an action of clamping the rotor 7 by converging inward at multiple points in the circumferential direction or an action of releasing the clamping of the rotor 7 by spreading outward in the circumferential direction, realizing the function of freely clamping the rotor 7.

[0046] Further, referring to Figure 4 and Figure 9 , the arc-shaped frame 24 is an integrally long and strip-shaped arc-shaped sheet structure, and the arc has a radian equal to half of a circle. At the same time, the arc-shaped frame 24 is integrally hollowed out. When in use, the opening of the arc-shaped frame 24 faces upward, and it can support the rotor 7 placed in the three groups of clamping components 22 from below the device, effectively preventing the rotor 7 from falling through the gap between the three groups of clamping components 22 and ensuring that the rotor 7 is always located between the three groups of clamping components 22. Moreover, the inner diameter radius of the arc-shaped frame 24 is greater than the distance from the clamping component 22 to the center of the base 21. Therefore, after the rotor 7 is clamped and limited by the three groups of clamping components 22, the arc-shaped frame 24 does not contact the rotor 7, thereby effectively avoiding increasing the friction with the rotor 7. The hollowed-out structure helps the debris generated during the grinding process to fall off, preventing the debris from remaining and damaging the outer wall of the rotor 7.

[0047] Among them, referring to Figure 5 , the clamping component 22 includes a cross bar 221 horizontally inserted into the limiting groove 211, a relief groove 222 opened at one end of the limiting groove 211, and two groups of rollers 223 arranged in parallel on the inner side of the cross bar 221. The cross bar 221 and the relief groove 222 are integrally long and strip-shaped structures, so that the number of positions in contact with the outer wall of the rotor 7 can be increased, thereby ensuring the stability of clamping the rotor 7.

[0048] Further, referring to Figure 6, a fixing frame 224 is arranged on the roller 223, and the roller 223 is rotatably connected within the fixing frame 224. One end of the fixing frame 224 extends into the cross bar 221, and a first spring 225 is arranged on the end of the fixing frame 224 that extends into the cross bar 221. The first spring 225 jacks up the fixing frame 224 and the roller 223 upward through elastic support. When the rotor 7 contacts the roller 223, the first spring 225 adjusts the contact angle between the two rollers 223 and the rotor 7 through elastic contraction, ensuring that the two rollers 223 can perfectly fit on the arc-shaped outer wall of the rotor 7, guaranteeing the connectivity between the two. The roller 223 rotatably connected to the fixing frame 224 can rotate following the rotor 7 when the rotor 7 rotates, without hindering the rotor 7 from rotating and grinding, and making its rotation smoother.

[0049] Among them, referring to Figure 7 , the execution unit 3 includes a cylinder block 311 fixedly connected to the side of the base 21, and a first storage groove 312 opened in the cylinder block 311. The main telescopic member 32 is inserted into the first storage groove 312. At the same time, the main body member 31 communicates with the power unit 4. The main telescopic member 32 and the first storage groove 312 cooperate to form a piston structure.

[0050] Among them, referring to Figure 7 , the main telescopic member 32 includes a main telescopic rod 321 inserted into the first storage groove 312. A connecting ear 324 is arranged at the outer end of the main telescopic rod 321. A second storage groove 322 is opened in the main telescopic rod 321, and the secondary telescopic member 33 is inserted into the second storage groove 322. A liquid inlet 323 in a horn-shaped structure is opened at the inner end of the main telescopic rod 321, and the liquid inlet 323 connects the second storage groove 322 with the first storage groove 312. At the same time, the end with a smaller diameter of the liquid inlet 323 is connected to the first storage groove 312. The secondary telescopic member 33 and the second storage groove 322 cooperate to also form a piston structure.

[0051] Among them, referring to Figure 7 , the secondary telescopic member 33 includes a secondary telescopic rod 331 inserted into the second storage groove 322, a contact disk 332 arranged at the outer end of the secondary telescopic rod 331, and a contact disk 332 fixedly arranged on the inner side of the contact disk 332 and extending into the secondary telescopic rod 331. The contact disk 332 is rotatably connected to the outer end of the secondary telescopic rod 331 through a spherical shaft 333.

[0052] Among them, referring to Figure 1 With Figure 2, the power unit 4 includes an oil pump 41 located below the main body component 31, a fuel tank 42 connected to the side of the oil pump 41, and a fuel pipe 43 connected between the main body component 31 and the oil pump 41. The oil pump 41 can transport the hydraulic oil in the fuel tank 42 into the first storage groove 312 through the fuel pipe 43, and control the extension and retraction of the main telescopic component 32 and the secondary telescopic component 33 by controlling the flow rate of the transported hydraulic oil, thereby realizing the function of driving the execution unit 3 to perform telescopic driving to limit the unit 2 to perform clamping or releasing actions.

[0053] Among them, referring to Figure 2 , the driving unit 5 includes a motor 51 arranged on the side of another group of bases 21, and a driving disk 52 arranged inside the motor 51 and extending to the inside of the base 21. The driving disk 52 is rotatably connected to the axial center position of the base 21. The motor 51 can drive the driving disk 52 to rotate. When the extended secondary telescopic component 33 abuts the rotor 7 against the driving disk 52, the driving disk 52 can, in cooperation with the secondary telescopic component 33, make the rotor 7 rotate following the drive of the motor 51, thereby assisting in the all-round grinding of the outer wall of the rotor 7.

[0054] Among them, referring to Figure 1 and Figure 8 , a gantry 11 is erected on the workbench 1, and the grinding unit 6 is installed on the gantry 11. The grinding unit 6 includes a cylinder 61 arranged above the gantry 11, an extension rod 62 arranged inside the cylinder 61 and extending downward, a mounting bracket 63 arranged at the lower end of the extension rod 62, two grinding stones 64 arranged below the mounting bracket 63 at an inclined angle, and a second spring 65 located between each grinding stone 64 and the mounting bracket 63. The cylinder 61 adjusts the distance between the grinding stone 64 and the rotor 7 by controlling the extension and retraction of the extension rod 62. The two mounting brackets 63 are distributed in an arc-shaped inclination, and extend outward through the elastic support of the second spring 65. When abutting against the rotor 7, the second spring 65 can abut the two grinding stones 64 against the arc-shaped outer wall of the rotor 7 at a suitable angle through elastic support, ensuring the fit with the rotor 7, and thus ensuring the effect of the grinding work.

[0055] In summary, when using this device to grind the rotor 7, place the rotor 7 between the three clamping components 22. The arc-shaped frame 24 temporarily supports the rotor 7, and one end of the rotor 7 abuts against the driving disk 52. Subsequently, start the power unit 4 to inject hydraulic oil into the first storage groove 312. The injected hydraulic oil in the first storage groove 312 will squeeze the main telescopic rod 321 and part of the hydraulic oil flows into the second storage groove 322 through the liquid inlet 323;

[0056] Combined with Figure 2 and Figure 9, at this time, the main telescopic component 32 is driven hydraulically to synchronously drive the secondary telescopic component 33 to extend outwards. The outwards-extending main telescopic component 32 drives the three groups of connecting rods 23 to perform a converging and embracing action along the limiting grooves 211 through the connecting ears 324, so as to embrace and limit the rotor 7 from three directions of the circumference, realizing the circumferential limiting and clamping of the rotor 7. Moreover, the synchronously inwards-embracing action of the three groups of clamping components 22 can accurately position the rotor 7 to the axial center position, playing a role of centering and clamping, and further enhancing the accuracy of grinding;

[0057] Combined with Figure 2 , while the hydraulic oil enters the second storage groove 322, the secondary telescopic component 33 will also be extruded and extend outwards. At this time, on the basis of following the main telescopic component 32 to extend outwards, the secondary telescopic component 33 further extends outwards. The outwards-extending secondary telescopic component 33 abuts against one end of the rotor 7, and the other end of the rotor 7 abuts against the driving disc 52. At this time, both ends of the rotor 7 are abutted by the secondary telescopic component 33 and the driving disc 52, and are applied with an inward clamping force by the two, realizing the function of horizontally clamping and limiting the rotor 7;

[0058] Through the combined use of circumferential clamping and limiting and horizontal clamping and limiting, the multi-directional limiting and fixing operation during the grinding process of the rotor can be realized, enhancing the stability during the rotor grinding work process, ensuring the smooth progress of the grinding work. Moreover, in the above process, the embracing range of the three groups of clamping components 22 during circumferential clamping and the horizontal extension distances of the main telescopic component 32 and the secondary telescopic component 33 are all adapted according to the actual diameter and length of the rotor 7. Therefore, the limiting and fixing of rotors of different specifications can be realized, further enhancing the flexibility of use and meeting different use requirements;

[0059] Refer to Figure 8 , after the limiting and fixing is completed, start the grinding unit 6, so that the grinding stone 64 abuts against the inner wall directly above the rotor 7 through the gap between the two groups of clamping components 22. Subsequently, drive the motor 51, so that the rotor 7 rotates. The rotating rotor 7 will cause each position on its outer wall to pass below the grinding stone 64 and rub against the grinding stone 64, thereby realizing the full grinding of the outer wall of the rotor 7. Moreover, during the rotation process of the rotor 7, the limiting unit 2 remains stationary, so the generation of grinding dead corners can be effectively avoided, and the grinding efficiency is further improved.

[0060] Refer to Figures 1 to 10 , which is the second embodiment of the present invention, including a processing method for a motor rotor, comprising the following steps:

[0061] S1. Place the rotor 7 to be ground into the limiting unit 2, and one end of the rotor 7 abuts against the driving disc 52. At this time, the arc-shaped frame 24 supports and limits the rotor 7 inside the limiting unit 2;

[0062] S2. Start the power unit 4. The power unit 4 injects hydraulic oil into the cylinder block 311 through the oil pipe 43, forcing the main telescopic component 32 in the cylinder block 311 to drive the secondary telescopic component 33 to extend outwards together;

[0063] S4. The outwards-extending main telescopic component 32 pulls the connecting rod 23 to fold and rotate outwards, and drives the three groups of clamping components 22 to perform translational sliding in the opposite direction, thereby compressing the space between the three groups of clamping components 22. Finally, the three groups of clamping components 22 uniformly surround and fit the outer wall of the rotor 7 from three directions, forming a circumferential direction limit fixation for the rotor 7;

[0064] S5. After the three groups of clamping components 22 fit the rotor 7, they cannot move, thereby reversely restricting the main telescopic component 32 from performing an extending action. The power unit 4 continues to inject hydraulic oil into the main body component 31, and the hydraulic oil is injected into the second storage groove 322 through the liquid inlet 323, forcing the secondary telescopic component 33 in the second storage groove 322 to extend outwards;

[0065] S6. The outwards-extending secondary telescopic component 33 abuts against one end of the rotor 7 and applies a horizontal thrust to the rotor 7. With the continuous oil injection of the power unit 4, finally, both ends of the rotor 7 are abutted against the secondary telescopic component 33 and the driving disc 52, so that the rotor 7 is horizontally limited and fixed between the secondary telescopic component 33 and the driving disc 52;

[0066] S7. Start the grinding unit 6. The air cylinder 61 presses down the mounting frame 63 through the extension rod 62, driving the two grinding stones 64 on the bottom surface of the mounting frame 63 to approach the outer wall of the rotor 7. The two grinding stones 64 cooperate with the corresponding second springs 65 to change the angle and closely fit on the arc-shaped outer wall of the rotor 7;

[0067] S8. Start the driving unit 5. The motor 51 drives the driving disc 52 to drive the rotor 7 to rotate. During the rotation, the arc surface of the outer wall of the rotor 7 is in full contact with the grinding stones 64, and with the continuous driving of the driving unit 5, the full grinding of the outer wall of the rotor 7 in all directions is realized.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limitations. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A motor rotor processing device, comprising a workbench (1), characterized in that: A limiting unit (2) is arranged inside the workbench (1). An actuating unit (3) and a driving unit (5) are respectively arranged at both ends of the limiting unit (2). A power unit (4) is connected below the actuating unit (3). A grinding unit (6) is arranged above the workbench (1). The limiting unit (2) includes two groups of symmetrically arranged bases (21). One end of the actuating unit (3) is slidably inserted into the axis center of one of the groups of bases (21). Three clamping components (22) are arranged on the base (21) in an inverted triangular equidistant manner. A connecting rod (23) is rotatably connected between the clamping component (22) and the actuating unit (3). An arc-shaped frame (24) is fixedly arranged on the lowermost group of clamping components (22). The arc-shaped frame (24) is an arc-shaped structure with an upward opening. Three limiting grooves (211) are formed on the base (21). The three limiting grooves (211) are equally divided around the axis center of the base (21). At the same time, the three clamping components (22) are correspondingly inserted into the three limiting grooves (211). The actuating unit (3) includes a main body component (31) fixedly connected to the outside of the base (21). A main telescopic component (32) is inserted into the main body component (31) and extends outward to the axis center position of the base (21). A secondary telescopic component (33) is inserted into the main telescopic component (32). Three connecting ears (324) are equally divided at the outer end of the main telescopic component (32). One end of the connecting rod (23) is rotatably connected to the connecting ear (324). The clamping component (22) includes a cross bar (221) horizontally inserted into the limiting groove (211), a relief groove (222) formed at one end of the limiting groove (211), and two rollers (223) arranged in parallel on the inner side of the cross bar (221). The actuating unit (3) includes a cylinder block (311) fixedly connected to the side of the base (21), and a first storage groove (312) formed in the cylinder block (311). The main telescopic component (32) is inserted into the first storage groove (312). At the same time, the main body component (31) is communicated with the power unit (4). The main telescopic component (32) includes a main telescopic rod (321) inserted into the first storage groove (312). The connecting ear (324) is arranged at the outer end of the main telescopic rod (321). A second storage groove (322) is formed in the main telescopic rod (321). The secondary telescopic component (33) is inserted into the second storage groove (322). A liquid inlet (323) is formed in a horn-shaped structure at the inner end of the main telescopic rod (321). The liquid inlet (323) communicates the second storage groove (322) with the first storage groove (312). At the same time, the end with a smaller diameter of the liquid inlet (323) is connected to the first storage groove (312). The secondary telescopic component (33) includes a secondary telescopic rod (331) inserted into the second storage groove (322), an abutting disc (332) arranged at the outer end of the secondary telescopic rod (331), and an abutting disc (332) fixedly arranged on the inner side of the abutting disc (332) and extending into the secondary telescopic rod (331).

2. The motor rotor processing equipment according to claim 1, characterized in that: A fixing frame (224) is provided on the roller (223), and the roller (223) is rotatably connected inside the fixing frame (224). One end of the fixing frame (224) extends into the cross bar (221), and a first spring (225) is provided on the end of the fixing frame (224) extending into the cross bar (221).

3. The motor rotor processing equipment according to claim 2, wherein: The power unit (4) includes an oil pump (41) located below the main body component (31), a fuel tank (42) connected to the side of the oil pump (41), and an oil pipe (43) connected between the main body component (31) and the oil pump (41).

4. The motor rotor processing equipment according to claim 3, characterized in that: The drive unit (5) includes a motor (51) provided on the side of another set of bases (21), and a drive disk (52) provided inside the motor (51) and extending into the inside of the base (21), and the drive disk (52) is rotatably connected to the axial center position of the base (21).

5. The motor rotor processing equipment according to claim 4, characterized in that: A gantry (11) is erected on the workbench (1), the grinding unit (6) is installed on the gantry (11), the grinding unit (6) includes a cylinder (61) provided above the gantry (11), an extension rod (62) provided inside the cylinder (61) and extending downward, a mounting frame (63) provided at the lower end of the extension rod (62), two grinding stones (64) with inclined angles provided below the mounting frame (63), and a second spring (65) located between each grinding stone (64) and the mounting frame (63).

6. A processing method for a motor rotor, including the motor rotor processing equipment described in claim 5, characterized in that, It includes the following steps: S1. Place the rotor (7) to be ground into the limiting unit (2), and one end of the rotor (7) abuts against the drive disk (52). At this time, the arc-shaped frame (24) supports and limits the rotor (7) inside the limiting unit (2). S2. Start the power unit (4), and the power unit (4) injects hydraulic oil into the cylinder block (311) through the oil pipe (43), forcing the main telescopic component (32) inside the cylinder block (311) to drive the secondary telescopic component (33) to extend outward together. S4. The outward-extending main telescopic component (32) pulls the connecting rod (23) to fold and rotate outward, and drives the three clamping components (22) to perform translational sliding in the opposite direction, thereby compressing the space between the three clamping components (22). Finally, the three clamping components (22) uniformly surround and fit the outer wall of the rotor (7) from three directions, forming circumferential limiting and fixing of the rotor (7). S5. After the three clamping components (22) fit the rotor (7), they cannot move, thereby reversely restricting the main telescopic component (32) from extending. The power unit (4) continues to inject hydraulic oil into the main body component (31), and the hydraulic oil is injected into the second storage groove (322) through the liquid inlet (323), forcing the secondary telescopic component (33) inside the second storage groove (322) to extend outward. S6. The outwardly extending secondary telescopic member (33) abuts against one end of the rotor (7) and applies a horizontal thrust to the rotor (7). As the power unit (4) continues to inject oil, finally both ends of the rotor (7) are abutted by the secondary telescopic member (33) and the drive disk (52), so that the whole rotor (7) is horizontally limited and fixed between the secondary telescopic member (33) and the drive disk (52); S7. Start the grinding unit (6). The cylinder (61) presses down the mounting bracket (63) through the extension rod (62), driving the two grinding stones (64) on the bottom surface of the mounting bracket (63) to approach the outer wall of the rotor (7). The two grinding stones (64) cooperate with the corresponding second springs (65) to change angles and closely fit on the arc-shaped outer wall of the rotor (7); S8. Start the drive unit (5). The motor (51) drives the drive disk (52) to drive the rotor (7) to rotate. During the rotation, the arc surface of the outer wall of the rotor (7) is in full contact with the grinding stones (64), and with the continuous drive of the drive unit (5), full grinding of the outer wall of the rotor (7) in all directions is achieved.

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