A processing device and method for a stator of a permanent magnet motor

Abstract

The present invention discloses a processing device and a processing method for a stator of a permanent magnet motor, belonging to the field of stator processing of permanent magnet motors, including: a grinding frame, a movable seat and a fixed frame; the grinding frames are symmetrically and fixedly installed on the workbench; the workbench is provided with a fixed frame between the two grinding frames; the fixed frame is driven by a double-axis drive mechanism; the grinding frames are slidably connected with the movable seat; the grinding frames are fixedly installed with a first motor; the first motor is fixedly installed with a first connecting rod; a connecting seat is fixedly installed on one side of the movable seat close to the first motor; compared with the prior art, the processing device for the stator of the permanent magnet motor in this application can simultaneously grind the inner grooves or outer grooves of multiple laminations through a set movable wire; during grinding, clamping is performed through clamping pieces to prevent the laminations from deflecting during grinding.

Description

Technical Field

[0001] The present invention relates to the field of permanent magnet motor stator processing, and specifically relates to a processing device and a processing method for a permanent magnet motor stator. Background Art

[0002] As is well known, the motor stator is an important part of the motor, which is stacked by a plurality of laminations with good magnetic conductivity, such as common silicon steel sheets; heat dissipation grooves are provided on the outer periphery of the laminations, and wire embedding grooves are provided on the inner periphery; during the processing and production of the stator, it is necessary to grind the outer peripheral grooves and the inner peripheral grooves of the laminations to ensure the flatness of the grooves; the laminations are relatively thin and the groove openings are small; common forms of the groove openings include pear-shaped grooves and flat-bottom grooves; unlike rectangular grooves with a pair of parallel side walls, the grooves of the above shapes are not convenient for the grinding piece to extend into for grinding, and the grinding effect is not good; therefore, a processing device and a processing method for a permanent magnet motor stator are proposed. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention proposes a processing device and a processing method for a permanent magnet motor stator, and by arranging a metal wire for grinding, the groove openings of a plurality of laminations can be ground at one time.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A processing device for a permanent magnet motor stator, comprising: a grinding frame, a movable seat and a fixed frame; the grinding frames are symmetrically and fixedly installed on the workbench; a fixed frame is arranged between the two grinding frames on the workbench; the fixed frame is driven by a double-axis driving mechanism; the movable seat is slidably connected to the grinding frame; a first motor is fixedly installed on each of the grinding frames; the first motor is fixedly installed with a first connecting rod; a connecting seat is fixedly installed on one side of the movable seat close to the first motor; the connecting seat is fixedly installed with a connecting column; the first connecting rod and the connecting column are connected by a second connecting rod; one end of the second connecting rod is rotatably connected to the first connecting rod, and the other end of the second connecting rod is rotatably connected to the second connecting rod; a metal wire is detachably and fixedly installed on the two movable seats.

[0006] A rotating shaft is rotatably connected to the fixed frame; the rotating shaft is driven by a second motor; a first retaining ring is fixedly installed on the rotating shaft; a pressing seat is slidably connected to one side of the fixed frame close to the rotating shaft; a rotating tube is rotatably connected to the pressing seat; the rotating shaft is slidably connected to the rotating tube; a second retaining ring is fixedly installed on the rotating tube; a driving hole is provided in the fixed frame; a first screw is rotatably connected in the driving hole; the first screw is threadedly connected to the pressing seat.

[0007] In some embodiments, a fixing frame is slidably connected with a fixing plate; the fixing plate is fixedly installed with an intermediate seat; the intermediate seat is symmetrically and rotatably connected with a second screw rod; each of the second screw rods is threadedly connected with a moving seat; each moving seat is fixedly installed with a clamping piece; the moving seats are slidably connected with the fixing plate; the fixing frame is linearly and evenly provided with optical axes; the optical axes are slidably connected with the moving seats; the fixing plate is fixedly connected with a third screw rod; the fixing frame is rotatably connected with a rotating seat; the rotating seat is provided with a threaded groove; the third screw rod is threadedly connected with the threaded groove; on one side of the fixing frame close to the rotating shaft, a transmission seat is fixedly installed; the transmission seat is rotatably connected with a transmission shaft; the transmission shaft is fixedly installed with a first bevel gear and a third bevel gear; the rotating shaft is fixedly installed with a second bevel gear; the second bevel gear meshes with the first bevel gear; between the rotating seat and the rotating shaft of the fixing frame, a second motor is fixedly installed; the second motor is fixedly installed with a fourth bevel gear through a one-way bearing; the fourth bevel gear meshes with the third bevel gear; the second motor is fixedly installed with a rotating column through a one-way bearing; the rotating column is fixedly installed with two toothless gears; between the two toothless gears of the rotating seat, a fifth bevel gear is fixedly installed; the fifth bevel gear can selectively mesh with one of the toothless gears.

[0008] In some embodiments, the dual-axis driving mechanism includes a lifting table, a lifting plate and an electric push rod; the lifting plate is symmetrically and fixedly installed with the electric push rod; the electric push rod is connected with the fixing frame; the lifting tables are symmetrically arranged on both sides of the lifting plate; the lifting table is rotatably connected with a fourth screw rod; the fourth screw rod is fixedly installed with a sprocket; the sprockets are connected by a chain; the lifting plate is threadedly connected with the two fourth screw rods; one of the lifting tables is fixedly installed with a third motor; the third motor is connected with the third screw rod.

[0009] In some embodiments, a recycling box is arranged at the lower end of the workbench on the fixing frame; a through hole is arranged at the upper end of the workbench on the recycling box.

[0010] In some embodiments, a dust collector is installed at the bottom of the workbench; the dust suction pipe of the dust collector is arranged at the lower end of the fixing frame.

[0011] Advantages of the present invention:

[0012] The processing device for the permanent magnet motor stator of the present invention can simultaneously polish the outer grooves or inner grooves of multiple laminations by arranging a movable metal wire; during polishing, the laminations are clamped by the clamping pieces to prevent the laminations from deflecting during polishing. Description of the drawings

[0013] The present invention will be further described below with reference to the drawings.

[0014] Figure 1Schematic diagram of the three-dimensional structure of the present application;

[0015] Figure 2 Schematic diagram of the grinding frame structure of the present application;

[0016] Figure 3 Schematic diagram of the fixing frame structure of the present application;

[0017] Figure 4 Backward schematic diagram of the fixing frame structure of the present application;

[0018] Figure 5 Enlarged schematic diagram of part A of the present application. Detailed implementation manners

[0019] 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 making creative efforts belong to the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0022] A processing device for a stator of a permanent magnet motor, comprising: a grinding frame 1, a movable seat 3 and a fixed frame 2; the grinding frame 1 is symmetrically and fixedly installed on the workbench; a fixed frame 2 is arranged between the two grinding frames 1 on the workbench; the fixed frame 2 is driven by a double-axis drive mechanism; the grinding frame 1 is slidably connected with a movable seat 3; a first motor 4 is fixedly installed on each of the grinding frames 1; the first motor 4 is fixedly installed with a first connecting rod 5; a connecting seat 6 is fixedly installed on one side of the movable seat 3 close to the first motor 4; the connecting seat 6 is fixedly installed with a connecting column; the first connecting rod 5 and the connecting column are connected by a second connecting rod 7; one end of the second connecting rod 7 is rotatably connected with the first connecting rod 5, and the other end of the second connecting rod 7 is rotatably connected with the second connecting rod 7; a metal wire 8 is detachably and fixedly installed on the two movable seats 3;

[0023] The movable seat 3 can be set as an upper seat and a lower seat, the upper seat and the lower seat are provided with semi-circular grooves, and the metal wire 8 is arranged in the semi-circular grooves; the upper seat and the lower seat are locked by screws, so that the metal wire 8 is firmly fixed in the upper seat and the lower seat; when the movable seat 3 can also be fixed in other ways, such as by arranging fixing columns; by fixing the metal wire 8 around the fixing columns;

[0024] A rotating shaft 9 is rotatably connected to the fixed frame 2; the rotating shaft 9 is driven by a second motor 10; a first retaining ring 11 is fixedly installed on the rotating shaft 9; a pressing seat 12 is slidably connected to one side of the fixed frame 2 close to the rotating shaft 9; a rotating pipe 13 is rotatably connected to the pressing seat 12; the rotating shaft 9 is slidably connected to the rotating pipe 13; a second retaining ring is fixedly installed on the rotating pipe 13; a driving hole is provided in the fixed frame 2; a first screw 14 is rotatably connected in the driving hole; the first screw 14 is threadedly connected to the pressing seat 12.

[0025] The following describes the method for processing the laminations of the motor stator; for the heat dissipation grooves on the outer circumference, first rotate the first screw 14 to move the pressing seat 12 so that the rotating pipe 13 is separated from the rotating shaft 9; then put several laminations on the rotating shaft 9; then rotate the first screw 14 to reset the rotating pipe 13, and the second retaining ring and the first retaining ring 11 jointly clamp the laminations; then drive the fixed frame 2 to drive the laminations to move through the double-axis drive mechanism, so that the metal wire 8 is located in the notch of the lamination and fits with the notch; then start the first motor 4, and the first motor 4 drives the connecting column, the connecting seat 6 and the movable seat 3 to move back and forth through the first connecting rod 5 and the second connecting rod 7, so that the metal wire 8 reciprocally rubs the inner wall of the notch of the lamination to remove burrs, debris, etc. of the lamination; when one notch is polished, drive the fixed frame 2 to move through the drive mechanism, then drive the rotating shaft 9 to rotate through the second motor 10 to change the position of the lamination, so that another notch faces the metal wire 8, and then reset, and drive the metal wire 8 to polish the next notch; repeat the above actions until all are polished;

[0026] For the slot groove on the inner circumference, first rotate the first screw rod 14 to move the pressing seat 12, so that the rotary tube 13 is separated from the rotary shaft 9; then sleeved several laminations on the rotary shaft 9; then rotate the first screw rod 14 to reset the rotary tube 13, and the second retaining ring and the first retaining ring 11 jointly clamp the laminations; then drive the fixed frame 2 by the double-axis drive mechanism to drive the laminations to move, so that it approaches the wire 8; remove the wire 8 and pass it through the slot groove; then drive the fixed frame 2 by the double-axis drive mechanism to make the wire 8 fit against the inner wall of the slot groove; then start the first motor 4, and the first motor 4 drives the connecting column, the connecting seat 6 and the movable seat 3 to reciprocate through the first connecting rod 5 and the second connecting rod 7, so that the wire 8 reciprocally rubs the inner wall of the notch of the laminations to remove burrs, debris, etc. of the laminations; when one slot groove is polished, remove the wire 8; polish the next slot groove in the above way.

[0027] In some embodiments, the fixed frame 2 is slidably connected with a fixed plate 15; the fixed plate 15 is fixedly installed with an intermediate seat 16; the intermediate seat 16 is symmetrically and rotatably connected with second screw rods 17; the second screw rods 17 are respectively threadedly connected with a movable seat 18; the movable seats 18 are fixedly installed with clamping pieces 19; rotate the second screw rods 17, that is, adjust the two movable seats 18 to move towards or away from each other, so that the clamping pieces 19 can be adjusted according to the size of the notch of the laminations; the clamping pieces 19 can be provided with chamfers to facilitate the insertion of the clamping pieces 19 into the laminations;

[0028] The movable seats 18 are slidably connected with the fixed plate 15; the fixed frame 2 is linearly and uniformly distributed with optical axes; the optical axes are slidably connected with the movable seats 18; the fixed plate 15 is fixedly connected with a third screw rod 20; the fixed frame 2 is rotatably connected with a rotating seat 21; the rotating seat 21 is provided with a threaded groove; the third screw rod 20 is threadedly connected with the threaded groove; the rotating seat 21 rotates, and the rotating seat 21 drives the third screw rod 20 and the fixed plate 15 to move along the fixed frame 2 through the threaded groove;

[0029] One side of the fixed frame 2 close to the rotary shaft 9 is fixedly installed with a transmission seat; the transmission seat is rotatably connected with a transmission shaft 22; the transmission shaft 22 is fixedly installed with a first bevel gear 23 and a third bevel gear 24; the rotary shaft 9 is fixedly installed with a second bevel gear 32; the second bevel gear 32 meshes with the first bevel gear 23; the fixed frame 2 is fixedly installed with a second motor 10 between the rotating seat 21 and the rotary shaft 9; the second motor 10 is fixedly installed with a fourth bevel gear 25 through a one-way bearing; the fourth bevel gear 25 meshes with the third bevel gear 24; the second motor 10 is fixedly installed with a rotating column 26 through a one-way bearing; the rotating column 26 is fixedly installed with two toothless gears 33; the rotating seat 21 is fixedly installed with a fifth bevel gear 27 between the two toothless gears 33; the fifth bevel gear 27 can selectively mesh with one of the toothless gears 33.

[0030] During grinding, due to the large number of stacked wafers, the notch positions of the stacked wafers will be inconsistent during the grinding process. When grinding the wire 8, it is necessary to adjust the position of the stacked wafers. When the above mechanism is in use, first, according to the size of the outer groove of the stacked wafer, rotate the second screw 17, that is, adjust the movement of the two moving seats 18, so that the clamping piece 19 can be adjusted according to the size of the outer groove of the stacked wafer. Then, drive the second motor 10 to rotate forward. At this time, the motor only drives the rotating column 26 to rotate. The rotating column 26 drives the two toothless gears 33 to rotate. The fifth bevel gear 27 first meshes with a toothless gear 33. The toothless gear 33 drives the rotating seat 21 to rotate, so that the rotating seat 21 drives the third screw 20 and the fixing plate 15 to move along the fixing frame 2 through the threaded groove until the clamping piece 19 is inserted into the outer groove of the stacked wafer. Then, the grinding work is carried out. After the grinding is completed, first move the fixing frame 2 away through the dual-axis drive mechanism. Then, the motor 10 continues to rotate forward. At this time, the fifth bevel gear 27 meshes with the other toothless gear 33. The toothless gear 33 drives the rotating seat 21 to rotate in the reverse direction, so that the rotating seat 21 drives the third screw 20 and the fixing plate 15 to move along the fixing frame 2 through the threaded groove until the clamping piece 19 moves out of the outer groove of the stacked wafer. Then, the motor 10 rotates in the reverse direction. At this time, the motor 10 only drives the fourth bevel gear 25 to rotate. The fourth bevel gear 25 drives the third bevel gear 24, the transmission shaft 22, the first bevel gear 23, the second bevel gear 32 and the rotating shaft 9 to rotate, thereby changing the notch position of the stacked wafer. Repeat the above actions to grind the outer groove or inner groove of the stacked wafer. The clamping piece 19 can keep the stacked wafer from deflecting during grinding.

[0031] In some embodiments, the dual-axis drive mechanism includes a lifting table, a lifting plate 28 and an electric push rod 31. The electric push rods 31 are symmetrically and fixedly installed on the lifting plate 28. The electric push rods 31 are connected to the fixing frame 2. The lifting tables are symmetrically arranged on both sides of the lifting plate 28. The lifting tables are rotatably connected with a fourth screw 29. The fourth screw 29 is fixedly installed with a sprocket. The sprockets are connected by a chain. The lifting plate 28 is threadedly connected with the two fourth screws 29. One lifting table is fixedly installed with a third motor 30. The third motor 30 is connected to the third screw 20. The electric push rod 31 is used to drive the fixing frame 2 to move towards or away from the wire 8. The third motor 30 drives the third screw 20 to rotate, so that the lifting plate 28 can drive the electric push rod 31 and the fixing frame 2 to move up and down.

[0032] In some embodiments, a recycling box is provided at the lower end of the fixing frame 2 on the workbench. A through hole is provided at the upper end of the recycling box on the workbench. The debris generated during grinding falls into the recycling box through the through hole.

[0033] In some embodiments, a vacuum cleaner is installed at the bottom of the workbench. The suction pipe of the vacuum cleaner is arranged at the lower end of the fixing frame 2. The suction pipe is used to recycle debris during processing.

[0034] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A processing device for a stator of a permanent magnet motor, characterized in that, Including: A grinding frame (1), a movable seat (3) and a fixed frame (2); the grinding frame (1) is symmetrically and fixedly installed on a workbench; a fixed frame (2) is arranged between the two grinding frames (1) on the workbench; the fixed frame (2) is driven by a biaxial drive mechanism; the movable seat (3) is slidably connected to the grinding frame (1); a first motor (4) is fixedly installed on each of the grinding frames (1); the first motor (4) is fixedly installed with a first connecting rod (5); a connecting seat (6) is fixedly installed on one side of the movable seat (3) close to the first motor (4); the connecting seat (6) is fixedly installed with a connecting column; the first connecting rod (5) and the connecting column are connected by a second connecting rod (7); one end of the second connecting rod (7) is rotatably connected to the first connecting rod (5), and the other end of the second connecting rod (7) is rotatably connected to the connecting seat (6); a wire (8) is detachably and fixedly installed on the two movable seats (3); A rotating shaft (9) is rotatably connected to the fixed frame (2); the rotating shaft (9) is driven by a second motor (10); a first retaining ring (11) is fixedly installed on the rotating shaft (9); a pressing seat (12) is slidably connected to one side of the fixed frame (2) close to the rotating shaft (9); a rotating pipe (13) is rotatably connected to the pressing seat (12); the rotating shaft (9) is slidably connected to the rotating pipe (13); a second retaining ring is fixedly installed on the rotating pipe (13); a driving hole is arranged on the fixed frame (2); a first screw (14) is rotatably connected in the driving hole; the first screw (14) is threadedly connected to the pressing seat (12); The fixing frame (2) is slidably connected with a fixing plate (15); the fixing plate (15) is fixedly installed with an intermediate seat (16); the intermediate seat (16) is symmetrically and rotatably connected with screw rods II (17); each screw rod II (17) is threadedly connected with a moving seat (18); each moving seat (18) is fixedly installed with a clamping piece (19); the moving seats (18) are slidably connected with the fixing plate (15); the fixing frame (2) is linearly and evenly distributed with optical axes; the optical axes are slidably connected with the moving seats (18); the fixing plate (15) is fixedly connected with a screw rod III (20); the fixing frame (2) is rotatably connected with a rotating seat (21); the rotating seat (21) is provided with a threaded groove; the screw rod III (20) is threadedly connected with the threaded groove; on one side of the fixing frame (2) close to the rotating shaft (9), a transmission seat is fixedly installed; the transmission seat is rotatably connected with a transmission shaft (22); the transmission shaft (22) is fixedly installed with a bevel gear I (23) and a bevel gear III (24); the rotating shaft (9) is fixedly installed with a bevel gear II (32); the bevel gear II (32) meshes with the bevel gear I (23); between the rotating seat (21) and the rotating shaft (9) of the fixing frame (2), the motor II (10) is fixedly installed; the motor II (10) is fixedly installed with a bevel gear IV (25) through a one-way bearing; the bevel gear IV (25) meshes with the bevel gear III (24); the motor II (10) is fixedly installed with a rotating column (26) through a one-way bearing; the rotating column (26) is fixedly installed with two toothless gears (33); between the two toothless gears (33) of the rotating seat (21), a bevel gear V (27) is fixedly installed; the bevel gear V (27) can selectively mesh with one of the toothless gears (33).

2. The processing device for the permanent magnet motor stator according to claim 1, characterized in that, The double-axis drive mechanism includes a lifting table, a lifting plate (28) and an electric push rod (31); the lifting plate (28) is symmetrically fixedly installed with the electric push rod (31); the electric push rod (31) is connected with the fixing frame (2); the lifting tables are symmetrically arranged on both sides of the lifting plate (28); the lifting tables are rotatably connected with screw rods IV (29); the screw rods IV (29) are fixedly installed with sprockets; the sprockets are connected by a chain; the lifting plate (28) is threadedly connected with the two screw rods IV (29); one of the lifting tables is fixedly installed with a motor III (30); the motor III (30) is connected with the screw rod III (20).

3. The processing device for the permanent magnet motor stator according to claim 1, characterized in that, At the lower end of the fixing frame (2) of the workbench, a recycling box is provided; at the upper end of the recycling box of the workbench, a through hole is provided.

4. The processing device for the permanent magnet motor stator according to claim 1, wherein A dust collector is installed at the bottom of the workbench; the dust suction pipe of the dust collector is arranged at the lower end of the fixing frame (2).

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