CN114505523B

CN114505523B - Three-phase motor processing is with rotor that can avoid excessive trompil pushing away hole equipment

Info

Publication number: CN114505523B
Application number: CN202210407542.5A
Authority: CN
Inventors: 张爱娟; 蔡海建; 张�浩; 缪徐; 张学森; 白连川
Original assignee: Nantong Sen Mate Electric Co ltd
Current assignee: Nantong Xirui Motor Technology Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-01
Anticipated expiration: 2042-04-19
Also published as: CN114505523A

Abstract

The invention discloses rotor hole pushing equipment capable of avoiding excessive hole forming for three-phase motor machining, and relates to the technical field of three-phase motor machining. This three-phase motor processing is with rotor that can avoid excessive trompil pushes away hole equipment, it is spacing to carry out synchronization to milling cutter head's action orbit on the follow physical layer face, stability when improving milling cutter head and removing avoids the shake to produce the trompil too big, further measure the interval size between milling cutter head and the rotor body bottom in real time when the trompil, so that the accurate control trompil degree of depth, further again through changing the milling cutter head of different action orbits can be used to first stereotyped spare and the second stereotyped spare on the design piece tooth limit of different shapes, so that adapt to different trompil shapes.

Description

Three-phase motor processing is with rotor that can avoid excessive trompil pushing away hole equipment

Technical Field

The invention relates to the technical field of three-phase motor machining, in particular to a rotor hole pushing device capable of avoiding excessive hole forming for three-phase motor machining.

Background

The rotor is an important accessory in a three-phase motor, the rotor of the three-phase motor generally comprises an iron core, a slip ring, a fan blade and the like, wherein coils are wound on the iron core, the slip ring, the fan blade and the like, holes which are uniformly distributed are usually formed in the surface of the rotor for winding, the holes are usually formed by rotating a milling cutter and pushing down the milling cutter to adhere to the surface of the rotor for opening, and equipment for performing the opening operation is called hole pushing equipment.

The existing hole pushing equipment generally controls the motion trail of the milling cutter through software so that holes on the surface of a rotor form a shape consistent with the movement trail, but the mode is weak in control force on the milling cutter and a rotating shaft part of the milling cutter, and the milling cutter is easy to separate from a preset track due to external force when the milling cutter is in friction with the surface of the rotor, so that excessive hole opening is caused.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides rotor hole pushing equipment capable of avoiding excessive hole forming for three-phase motor machining, and solves the problems that the conventional hole pushing equipment generally controls the movement trace of a milling cutter through software so that the hole on the surface of a rotor is in a shape consistent with the trace, but the control force of the mode on the milling cutter and the rotating shaft part of the milling cutter is weak, and the milling cutter is easy to be separated from a preset track due to external force when the milling cutter is rubbed with the surface of the rotor, so that excessive hole forming is caused.

In order to achieve the purpose, the invention is realized by the following technical scheme: a rotor hole pushing device capable of avoiding excessive hole forming for three-phase motor machining comprises a machining frame and a hole forming assembly, wherein the top of the machining frame is provided with an adjusting motor, the bottom of the adjusting motor is rotatably connected with a transmission disc, two sides of the bottom surface of the transmission disc are provided with electric lifting rods, the hole forming assembly is fixed at the bottom of the electric lifting rods and comprises a sleeve, Y-axis double slide rails, a first pulley, a second pulley, a driving motor, a rotating shaft, a milling cutter head, a bearing, a placement groove, a first shaping piece, a clamping groove, a clamping column, a second shaping piece, a shaping piece toothed edge, a connecting toothed edge and X-axis double slide rails, the Y-axis double slide rails are arranged on two sides of the upper surface of the sleeve, the upper part of each Y-axis double slide rail is connected with the first pulley in a sliding manner, the X-axis double slide rails are fixed on the side surfaces of the top of the first pulley, and the upper parts of the X-axis double slide rails are connected with the second pulley in a sliding manner, the bottom of the second pulley is provided with a driving motor, the bottom of the driving motor is connected with a rotating shaft, the bottom of the rotating shaft is connected with a milling head, the outer portion of the rotating shaft is connected with a bearing, a placement groove is formed in the upper surface of the sleeve, a first fixed part is placed in the placement groove, a clamping groove is formed in the right side of the first fixed part, a clamping column is inserted in the clamping groove, a second fixed part is fixed to the end portion of the clamping column, the inner side surfaces of the second fixed part and the first fixed part are provided with fixed part toothed edges, the outer wall of the bearing is provided with a connecting toothed edge, a rotor body is placed at the bottom of the processing frame, the first fixed part is connected with the second fixed part in a clamping mode through the clamping groove and the clamping column, the outer structures of the first fixed part and the second fixed part are matched with the inner structure of the placement groove, and the milling head and the rotating shaft are connected with the milling head through the sleeve, The electric lifting rod is rotationally connected with the adjusting motor, and the rotating shaft penetrates through the interior of the placing groove.

Optionally, the outer side surface of the sleeve is connected with an infrared distance meter, and the bottom surface of the infrared distance meter and the bottommost end of the milling head are located on the same horizontal plane.

Optionally, the sleeve is connected with the adjusting motor through an electric lifting rod in a rotating mode, the sleeve, the adjusting motor and the rotor body are located on the same vertical central axis, the tooth edge of the shaping piece is connected with the bearing in a meshed mode through a connecting tooth edge, the rotating shaft is assembled with the tooth edge of the shaping piece in a sliding mode through the bearing and the connecting tooth edge, the milling head and the rotor body are vertically distributed, and the milling head and the rotating shaft are connected in a clamped mode.

Optionally, the inside sliding connection in telescopic both sides has interior toe collar, and the inside embedding of interior toe collar has the ball, ball evenly distributed is inside interior toe collar, and the ball outer wall laminates with the outer wall of rotor body mutually.

Optionally, the opening assembly further comprises a kneading piece, and the kneading pieces are fixed on the upper surfaces of the first and second fixed shaping pieces.

The invention provides a rotor hole pushing device capable of avoiding excessive hole forming for three-phase motor processing, which has the following beneficial effects:

carry out spacing in step to milling cutter head's action orbit on the follow physical layer face to stability when improving milling cutter head and removing avoids shaking and produces the trompil too big, further measure the interval size between milling cutter head and the rotor body bottom in real time when the trompil, so that accurate control trompil degree of depth, further again can use the milling cutter head of different action orbits through first design spare and the second design spare of changing the design spare tooth limit of different shapes, so that adapt to different trompil shapes.

1. This three-phase motor processing is with rotor that can avoid excessive trompil pushes away hole equipment, after first stereotyped spare and the concatenation of second stereotyped spare block, stereotyped spare tooth edge becomes cyclic annular, the pivot is through first coaster this moment, the Y axle double slide rail is followed to the second coaster, the inside horizontal migration that is of X axle double slide rail, make the bearing slide along stereotyped spare tooth limit surface through connecting the tooth edge, this setting is favorable to carrying on spacingly from the action orbit of physics aspect countershaft, make it keep predetermineeing the orbit and carry out steady removal, thereby avoid taking place the shake and lead to excessive trompil.

2. This three-phase machine processing is with rotor that can avoid excessive trompil pushes away hole equipment, through the draw-in groove between first type spare and the second type spare, card post block is connected, and first type spare, second type spare is also the block with the resettlement groove and is connected, the later stage only needs to lift the piece of kneading the essence and makes first type spare, second type spare breaks away from the resettlement inslot portion, can make first type spare to both sides hard again, the separation of second type spare, this sets up convenient first type spare, the second type spare is assembled and is settled, can make the pivot carry out corresponding orbit through the type spare tooth limit of changing different shapes simultaneously and remove, thereby be favorable to opening the rotor body of the hole of different shapes with the adaptation different demands.

3. This three-phase motor processing is with rotor push away hole equipment that can avoid excessive trompil, the inner ring position and the pivot of bearing are connected, and the outer loop position of bearing is connected with the meshing of design tooth limit through connecting the tooth limit, this setting makes the outer loop position of bearing not rotate when rotating in the pivot, but the outer loop position of bearing then rolls along the meshing of design tooth limit surface when the pivot removes and realizes sliding, this setting has avoided the direct running friction that takes place of pivot and design tooth limit in the rotation, avoids the design tooth limit to receive wearing and tearing.

4. This three-phase machine processing is with rotor that can avoid excessive trompil pushes away hole equipment, interior beam ring parcel rotor body is outside in order to carry on spacingly to it, avoid taking place to remove at trompil in-process rotor body, and can drive the milling cutter head who breaks away from behind the rotor body is inside through adjusting motor, the sleeve rotates so that carry out follow-up trompil to rotor body, and interior beam ring can be along with sleeve synchronous revolution, the ball pastes and rolls in rotor body surface and rolls to change sliding friction power into rolling friction power, be favorable to keeping the reduction friction dynamics when spacing to rotor body, avoid rotor body surface wear.

5. This three-phase motor processing is with rotor that can avoid excessive trompil pushes away hole equipment, infrared distance meter records its and the interval size between the processing frame bottom, this size is the interval size of milling cutter head and processing frame bottom promptly, also be the interval size between milling cutter head and the rotor body bottom, thereby infrared distance meter pushes down the real-time detection interval with it when milling cutter head descends, in order to avoid the excessive trompil of milling cutter head, lead to the trompil degree of depth excessive, so that the trompil degree of depth of accurate control to the rotor body.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the inner collar of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is a schematic top view of the bearing of the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention.

In the figure: 1. processing the frame; 2. adjusting the motor; 3. a drive plate; 4. an electric lifting rod; 5. an opening component; 501. a sleeve; 502. y-axis double slide rails; 503. a first sled; 504. a second sled; 505. a drive motor; 506. a rotating shaft; 507. a milling head; 508. a bearing; 509. a placing groove; 510. a first shaped part; 511. a card slot; 512. clamping the column; 513. a second stationary member; 514. shaping piece tooth edge; 515. connecting the tooth edges; 516. an X-axis double slide rail; 517. kneading the sheet; 6. a rotor body; 7. an infrared range finder; 8. an inner collar; 9. and a ball.

Detailed Description

As shown in fig. 1 to 5, the present invention provides a technical solution: a rotor hole pushing device capable of avoiding excessive hole forming for three-phase motor machining comprises a machining frame 1 and a hole forming assembly 5, wherein the top of the machining frame 1 is provided with an adjusting motor 2, the bottom of the adjusting motor 2 is rotatably connected with a transmission disc 3, two sides of the bottom surface of the transmission disc 3 are provided with electric lifting rods 4, the hole forming assembly 5 is fixed at the bottom of the electric lifting rods 4, the hole forming assembly 5 comprises a sleeve 501, a Y-axis double-sliding rail 502, a first pulley 503, a second pulley 504, a driving motor 505, a rotating shaft 506, a milling head 507, a bearing 508, a placing groove 509, a first shaping piece 510, a clamping groove 511, a clamping column 512, a second shaping piece 513, a shaping piece toothed edge 514, a connecting toothed edge 515 and an X-axis double-sliding rail 516, two sides of the upper surface of the sleeve 501 are provided with the Y-axis double-sliding rails 502, the upper portion of the Y-axis double-sliding rail 502 is slidably connected with the first pulley 503, the side surface of the top of the first pulley 503 is fixed with the X-axis double-sliding rail 516, the upper part of the X-axis double-sliding rail 516 is connected with a second pulley 504 in a sliding manner, the bottom of the second pulley 504 is provided with a driving motor 505, the bottom of the driving motor 505 is connected with a rotating shaft 506, the bottom of the rotating shaft 506 is connected with a milling head 507, the outer part of the rotating shaft 506 is connected with a bearing 508, the upper surface of the sleeve 501 is provided with a placing groove 509, the placing groove 509 is internally provided with a first shaped part 510, the right side of the first shaped part 510 is internally provided with a clamping groove 511, the clamping groove 511 is internally inserted with a clamping column 512, the end part of the clamping column 512 is fixed with a second shaped part 513, the inner side surfaces of the second shaped part 513 and the first shaped part 510 are both provided with shaped part tooth edges 514, the outer wall of the bearing 508 is provided with a connecting tooth edge 515, the bottom of the processing frame 1 is provided with a rotor body 6, the milling head 507 and the rotating shaft 506 are rotatably connected with the adjusting motor 2 through the sleeve 501 and the electric lifting rod 4, and the rotating shaft 506 penetrates through the placing groove 509, the sleeve 501 is rotatably connected with the adjusting motor 2 through the electric lifting rod 4, the sleeve 501, the adjusting motor 2 and the rotor body 6 are positioned on the same vertical central axis, the tooth edge 514 of the shaping part is meshed with the bearing 508 through the connecting tooth edge 515, the rotating shaft 506 is slidably assembled with the tooth edge 514 of the shaping part through the bearing 508 and the connecting tooth edge 515, the milling head 507 and the rotor body 6 are vertically distributed, and the milling head 507 and the rotating shaft 506 are connected in a clamping manner;

specifically, the rotor body 6 is placed on the bottom surface of the processing frame 1, the adjusting motor 2 drives the transmission disc 3 to rotate the sleeve 501, so that the milling head 507 rotates around the center of the rotor body 6, the rotation is stopped after the position of the opening coincides with the position of the milling head 507, the first and second shaped

members

510 and 513 with the tooth edges 514 of the shaped members having corresponding shapes are selected according to the shape of the preset opening, then the first and second shaped

members

510 and 513 are assembled from two sides of the rotating shaft 506 respectively, namely, the clamp column 512 at the end of the second shaped member 513 is inserted into the clamp groove 511 at the end of the first shaped member 510, then the assembled first and second shaped

members

510 and 513 are placed in the placing groove 509, the driving motor 505 drives the rotating shaft 506 to rotate the milling head 507, and the electric lifting rod 4 extends out to push the milling head 507 down to the surface of the rotor body 6 to perform the opening operation, the first block 503 then slides back and forth along the inside of the Y-axis dual slide 502 with the milling head 507, meanwhile, the second pulley 504 is matched to carry the milling head 507 to slide left and right along the inner part of the X-axis double-sliding rail 516, so that the bearing 508 always clings to the surface of the tooth edge 514 of the fixed profile for rolling sliding through the connecting tooth edge 515, so that the milling head 507 moves along the action track preset by the software, and the inner ring part of the bearing 508 is connected with the rotating shaft 506, and the outer ring part of the bearing 508 is meshed and connected with the shaping piece toothed edge 514 through a connecting toothed edge 515, the arrangement is such that the outer ring portion of the bearing 508 does not rotate when the shaft 506 rotates, but the outer ring portion of the bearing 508 rolls along the surface of the tooth rim 514 of the setting member to slide when the shaft 506 moves, this arrangement prevents the rotating shaft 506 from directly rotating and rubbing against the tooth edge 514 of the fixed part, and prevents the tooth edge 514 of the fixed part from being worn.

As shown in fig. 3-4, the first shaped component 510 is connected with the second shaped component 513 by the locking slot 511 and the locking column 512, and the external structures of the first shaped component 510 and the second shaped component 513 are matched with the internal structure of the placing slot 509;

the first shaped part 510 and the second shaped part 513 are connected in a clamping manner, so that assembly is facilitated, and the external structures of the first shaped part 510 and the second shaped part 513 are matched with the internal structure of the placement groove 509, so that the first shaped part 510 and the second shaped part 513 are stably assembled in the placement groove 509, shaking is prevented, and the bearing 508 can stably roll and slide along the surface of the toothed edge 514 of the shaped part.

As shown in fig. 1, the outer side surface of the sleeve 501 is connected with an infrared distance meter 7, and the bottom surface of the infrared distance meter 7 and the bottommost end of the milling head 507 are located on the same horizontal plane;

the operation is as follows, the milling head 507 is continuously descended through the electric lifting rod 4 when the hole is formed, the infrared distance measuring instrument 7 is synchronously descended in the process, the bottom surface of the infrared distance measuring instrument 7 and the bottommost end of the milling head 507 are positioned on the same horizontal plane, at the moment, the infrared distance measuring instrument 7 measures the distance between the infrared distance measuring instrument and the bottom of the processing frame 1, the distance is the distance between the milling head 507 and the bottom of the processing frame 1, namely the distance between the milling head 507 and the bottom of the rotor body 6, when the milling head 507 descends, the infrared distance measuring instrument 7 is pushed down along with the distance to detect the distance in real time, excessive hole forming of the milling head 507 is avoided, the hole forming depth is caused to be excessive, and the hole forming depth of the rotor body 6 is accurately controlled.

As shown in fig. 1-2, the inner portion of the two sides of the sleeve 501 is slidably connected with the inner collar 8, the balls 9 are embedded in the inner collar 8, the balls 9 are uniformly distributed in the inner collar 8, and the outer wall of the ball 9 is attached to the outer wall of the rotor body 6;

the specific operation is as follows, the internal binding ring 8 descends along with the sleeve 501 through the electric lifting rod 4 when the rotor body 6 is opened, the internal binding ring 8 is sleeved outside the rotor body 6 to limit the external binding ring, the rotor body 6 is prevented from moving in the opening process, the milling head 507 separated from the inside of the rotor body 6 can be driven by the adjusting motor 2, the sleeve 501 rotates to facilitate subsequent opening of the rotor body 6, the internal binding ring 8 can rotate synchronously along with the sleeve 501, the balls 9 roll on the surface of the rotor body 6 to convert sliding friction into rolling friction, the friction is reduced while the limitation of the rotor body 6 is kept, and the surface abrasion of the rotor body 6 is avoided.

As shown in fig. 3-5, the perforated member 5 further includes a pinching piece 517, and the pinching piece 517 is fixed on the upper surfaces of the first and second shaped

members

510 and 513;

the specific operation is as follows, only need to lift the piece 517 of kneading dough in the later stage and make first shaped element 510, second shaped element 513 break away from to set inside the groove 509, again to both sides hard can make first shaped element 510, the separation of second shaped element 513, this setting is convenient to first shaped element 510, the equipment of second shaped element 513 is settled, simultaneously can make pivot 506 carry out corresponding orbit removal through the shaped element tooth limit 514 of changing different shapes to be favorable to opening the hole of different shapes and in order to adapt to the rotor body 6 of different demands.

In summary, when the rotor hole pushing equipment capable of avoiding excessive hole forming is used for machining the three-phase motor, the rotor body 6 is firstly placed on the bottom surface of the machining frame 1, the inner binding ring 8 descends along with the sleeve 501 through the electric lifting rod 4, and the inner binding ring 8 is sleeved outside the rotor body 6 to limit the rotor body 6 at the moment, so that the rotor body 6 is prevented from moving in the hole forming process;

the adjusting motor 2 drives the transmission disc 3 to rotate the sleeve 501, so that the milling head 507 rotates around the center of the rotor body 6, the rotation is stopped after the position of the opening coincides with the position of the milling head 507, the first fixed part 510 and the second fixed part 513 with the tooth edge 514 of the fixed part in corresponding shapes are selected according to the shape of the preset opening, then the first fixed part 510 and the second fixed part 513 are respectively assembled by approaching from two sides of the rotating shaft 506, namely, the clamping column 512 at the end part of the second fixed part 513 is inserted into the clamping groove 511 at the end part of the first fixed part 510, and then the assembled first fixed part 510 and second fixed part 513 are arranged in the arranging groove 509;

when the sleeve 501 rotates, the inner binding ring 8 synchronously rotates along with the sleeve 501, and at the moment, the balls 9 roll along the surface of the rotor body 6 to convert sliding friction force into rolling friction force, so that the limitation on the rotor body 6 is kept, the friction force is reduced, and the surface abrasion of the rotor body 6 is avoided;

after the hole-opening position is determined, the driving motor 505 drives the rotating shaft 506 to rotate the milling head 507, the electric lifting rod 4 extends to push the milling head 507 down to the surface of the rotor body 6 to perform hole-opening operation on the milling head, then the first pulley 503 carries the milling head 507 to slide back and forth along the inside of the Y-axis double-slide rail 502, meanwhile, the second pulley 504 is matched to carry the milling head 507 to slide left and right along the inner part of the X-axis double-sliding rail 516, so that the bearing 508 always clings to the surface of the tooth edge 514 of the fixed profile for rolling sliding through the connecting tooth edge 515, so that the milling head 507 moves along the action track preset by the software, and the inner ring part of the bearing 508 is connected with the rotating shaft 506, and the outer ring part of the bearing 508 is meshed and connected with the shaping piece toothed edge 514 through a connecting toothed edge 515, the arrangement is that the outer ring part of the bearing 508 does not rotate when the rotating shaft 506 rotates, but the outer ring part of the bearing 508 rolls along the surface of the tooth edge 514 of the shaping piece to realize sliding when the rotating shaft 506 moves;

the milling head 507 is continuously descended through the electric lifting rod 4 when a hole is formed, the infrared distance meter 7 is synchronously descended in the process, the bottom surface of the infrared distance meter 7 and the bottommost end of the milling head 507 are positioned on the same horizontal plane, at the moment, the infrared distance meter 7 measures the size of the space between the milling head 7 and the bottom of the machining frame 1, and the size is the size of the space between the milling head 507 and the bottom of the machining frame 1, namely the size of the space between the milling head 507 and the bottom of the rotor body 6, so that the descending height of the milling head 507 can be pushed out, and when the milling head 507 descends, the infrared distance meter 7 is pushed down along with the space to detect the space in real time, so that the milling head 507 is prevented from being excessively formed with the hole;

finally, when the shape of the opening needs to be changed, the pinching piece 517 is lifted to separate the first shaped part 510 and the second shaped part 513 from the inside of the placement groove 509, the first shaped part 510 and the second shaped part 513 can be separated by applying force to two sides, and the rotating shaft 506 can move along the corresponding track by replacing the toothed edges 514 of the shaped parts in different shapes, so that the holes in different shapes can be conveniently formed to adapt to the rotor bodies 6 with different requirements.

Claims

1. The utility model provides a three-phase motor processing is with rotor that can avoid excessive trompil pushes away hole equipment, includes processing frame (1) and trompil subassembly (5), its characterized in that: the top of the processing frame (1) is provided with an adjusting motor (2), the bottom of the adjusting motor (2) is rotatably connected with a transmission disc (3), two sides of the bottom surface of the transmission disc (3) are provided with electric lifting rods (4), the hole opening component (5) is fixed at the bottom of the electric lifting rods (4), the hole opening component (5) comprises a sleeve (501), a Y-axis double-sliding rail (502), a first pulley (503), a second pulley (504), a driving motor (505), a rotating shaft (506), a milling head (507), a bearing (508), a placing groove (509), a first shaping piece (510), a clamping groove (511), a clamping column (512), a second shaping piece (513), a shaping piece toothed edge (514), a connecting toothed edge (515) and an X-axis double-sliding rail (516), two sides of the upper surface of the sleeve (501) are provided with the Y-axis double-sliding rail (502), and the upper part of the Y-axis double-sliding rail (502) is slidably connected with the first pulley (503), an X-axis double-sliding rail (516) is fixed on the side face of the top of the first pulley (503), the upper portion of the X-axis double-sliding rail (516) is connected with a second pulley (504) in a sliding mode, a driving motor (505) is assembled at the bottom of the second pulley (504), a rotating shaft (506) is connected to the bottom of the driving motor (505), a milling head (507) is connected to the bottom of the rotating shaft (506), a bearing (508) is connected to the outer portion of the rotating shaft (506), a placement groove (509) is formed in the upper surface of the sleeve (501), a first shaping piece (510) is disposed in the placement groove (509), a clamping groove (511) is formed in the right side of the first shaping piece (510), a clamping column (512) is inserted in the clamping groove (511), a second shaping piece (513) is fixed to the end portion of the clamping column (512), and shaping piece toothed edges (514) are arranged on the inner side faces of the second shaping piece (513) and the first shaping piece (510), the outer wall of bearing (508) is provided with connection tooth limit (515), rotor body (6) have been placed to the bottom of processing frame (1), first type piece (510) are connected with second type piece (513) block through draw-in groove (511), card post (512), and the exterior structure of first type piece (510), second type piece (513) is identical with the inner structure of settling groove (509), milling head (507), pivot (506) are through sleeve (501), electric lift pole (4) and adjustment motor (2) swivelling joint, and pivot (506) run through settling groove (509) inside.

2. The rotor hole pushing device capable of avoiding excessive hole opening for three-phase motor machining according to claim 1, is characterized in that: the lateral surface of sleeve (501) is connected with infrared distance meter (7), and the bottom surface of infrared distance meter (7) and the bottommost of milling cutter head (507) are located same horizontal plane.

3. The rotor hole pushing device capable of avoiding excessive hole opening for three-phase motor machining according to claim 1, is characterized in that: sleeve (501) are connected through electric lift pole (4) and accommodate motor (2) rotation, and sleeve (501), accommodate motor (2) and rotor body (6) three are located same vertical axis, design piece tooth limit (514) are connected through connecting tooth limit (515) and bearing (508) meshing, and pivot (506) pass through bearing (508), connect tooth limit (515) and design piece tooth limit (514) sliding assembly, be vertical distribution between milling cutter head (507) and rotor body (6), and be the block between milling cutter head (507) and pivot (506) and be connected.

4. The rotor hole pushing device capable of avoiding excessive hole opening for three-phase motor machining according to claim 1, is characterized in that: the inner portion of the two sides of the sleeve (501) is connected with an inner binding ring (8) in a sliding mode, balls (9) are embedded into the inner binding ring (8), the balls (9) are uniformly distributed inside the inner binding ring (8), and the outer wall of each ball (9) is attached to the outer wall of the rotor body (6).

5. The rotor hole pushing device capable of avoiding excessive hole opening for three-phase motor machining according to claim 1, is characterized in that: the punching assembly (5) further comprises a pinching piece (517), and the pinching piece (517) is fixed on the upper surfaces of the first shaping piece (510) and the second shaping piece (513).