Rotor skewing groove mechanism

Abstract

The utility model discloses a rotor skewed slot mechanism, which belongs to the technical field of rotor assembly and comprises a sliding seat and a twisting knife mechanism, two ends of the sliding seat are provided with a positioning block I and a positioning block II, the positioning block I and the positioning block II position an iron core through folding, the positioning block I is in sliding connection with the sliding seat, and the twisting knife mechanism is arranged on the sliding seat. A bearing plate for placing an iron core is arranged on the positioning block I; the twisting knife mechanism comprises a driving rod and a driven rod, the driving rod is movably connected with the second positioning block, the driven rod is rotationally connected with the first positioning block, twisting knife blades are fixed to the opposite ends of the driving rod and the driven rod, and twisting rod parts are fixed to the driving rod and the driven rod. The twisting cutter driving mechanism and the twisting cutter mechanism are matched to enable the two twisting cutter blades inserted into the iron core to twist together, so that the iron core is kept stable when skewed, an operator does not need to twist skewed slots manually in the process, time and labor are saved, and the iron core skewed slot twisting device is safe, reliable and high in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rotor assembly technology, and in particular to a rotor skew groove mechanism. Background Technology

[0002] In the process of processing and producing micro motor rotors, special tooling equipment is required to assemble and connect the rotor shaft and rotor laminations together. When using the existing tooling, the skew groove will have a sawtooth phenomenon, the positioning is inaccurate, the shaft is easily scratched, the dynamic balance is large, and there is a lot of waste, the pass rate is low, the labor intensity of workers is high, and it is not convenient to remove the finished rotor after riveting.

[0003] Modern electrical appliances strive for quiet operation. The skewed slots in motor rotors cause a phase displacement of the radial force wave along the motor's longitudinal axis, thus reducing the average radial force and consequently decreasing motor vibration and noise. Therefore, some electrical motors require skewed rotors. Skewed rotors require the use of sheet metal cores for fabrication. Currently, most skewing fixtures on the market are manual, which suffers from inconvenient operation, low production efficiency, and safety concerns. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art, where most of the twisting groove tooling currently used in the market is manual twisting groove, which has problems such as inconvenient twisting operation, low production efficiency and safety.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotor skew slot mechanism includes a slide block and a torsion blade mechanism. Positioning blocks one and two are provided at both ends of the slide block. Positioning blocks one and two position the iron core by closing them together. Positioning block one is slidably connected to the slide block, and a receiving plate for placing the iron core is provided on positioning block one. The torsion blade mechanism includes a driving rod and a driven rod. The driving rod is movably connected to positioning block two, and the driven rod is rotatably connected to positioning block one. Torsion blades are fixed to the opposite ends of both the driving rod and the driven rod, and torsion bar portions are fixed to the upper parts of both the driving rod and the driven rod.

[0007] Preferably, a torsion knife drive mechanism is provided on one side of the slide block. The torsion knife drive mechanism includes an active plate and a driven plate. One end of the active plate is connected to an electric cylinder. An active groove for inserting a torsion bar is opened on the active plate, and a driven groove for inserting a torsion bar is opened on the driven plate.

[0008] Preferably, a bearing is sleeved on the torsion bar, the two side walls of the active groove are respectively inclined surface one and vertical surface one, and the two side walls of the driven groove are respectively inclined surface two and vertical surface two.

[0009] Preferably, the torsion knife drive mechanism further includes a switching gear, on both sides of which a driving rack and a driven rack are respectively meshed. The driving rack is fixed to the driving plate, and the driven rack is fixed to the driven plate.

[0010] Preferably, a linkage component is provided between the active rod and the first positioning block. The linkage component includes a fixing plate fixed on the first positioning block, the end of the fixing plate being arc-shaped. A fixing ring is fixed on the active rod. A vertical rod is rotatably connected to the second positioning block. A horizontal rod is fixed on the vertical rod. One end of the horizontal rod contacts the fixing ring, and the other end of the horizontal rod extends out of the second positioning block. One end of the active rod extends out of the second positioning block. A spring is sleeved on the active rod, and the two ends of the spring abut against the end of the active rod and the second positioning block, respectively.

[0011] Preferably, the contact end of the crossbar is hemispherical.

[0012] Preferably, the slide has a groove, a positioning plate is fixed in the groove, and the two ends of the positioning plate form a sliding groove with the side wall of the groove.

[0013] Preferably, the positioning plate is provided with a positioning ring.

[0014] Preferably, the receiving plate has two through slots, one for rotating blades and another for rotating blades.

[0015] Preferably, auxiliary components are provided on both sides of the receiving plate. The auxiliary components include an arc-shaped plate, on which a rotating shaft is fixed. The rotating shaft is connected to the positioning block by a torsion spring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The two twisting blades inserted into the iron core twist together through the cooperation of the twisting drive mechanism and the twisting mechanism, so that the iron core remains stable when it is inclined. During this process, the operator does not need to manually twist the inclined groove, which not only saves time and effort, but is also safe, reliable and efficient.

[0018] The arc surfaces of the locating blocks 1 and 2 limit the outer wall of the rotor core, thereby keeping the core slot stable when tilted and preventing damage to the rotor core during twisting. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the positioning block of this utility model before it moves.

[0022] Figure 3 This is a schematic diagram of the torsion knife mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the torsion knife drive mechanism of this utility model.

[0024] Figure 5 This is a schematic diagram of the receiving plate and auxiliary components of this utility model.

[0025] Figure 6 This is a schematic diagram of the vertical surface 2 and the inclined surface 1 of this utility model.

[0026] Figure 7 This is a schematic diagram of the vertical surface one and the inclined surface two of this utility model.

[0027] Figure 8 This is a schematic diagram of the guide slope of this utility model.

[0028] Drawing number explanation: 1. Slide; 11. Positioning block one; 111. Receiving plate; 112. Through groove one; 113. Through groove two; 12. Positioning block two; 13. Guide inclined surface; 2. Torque mechanism; 21. Driving rod; 22. Driven rod; 23. Torque blade; 24. Torque rod part; 25. Bearing; 3. Torque drive mechanism; 31. Driving plate; 311. Driving groove; 312. Inclined surface one; 313. Vertical surface one; 32. Driven rod... 321. Moving plate; 322. Driven groove; 323. Inclined surface two; 324. Vertical surface two; 35. Electric cylinder one; 36. Switching gear; 37. Driving rack; 48. Driven rack; 49. Auxiliary parts; 40. Arc plate; 41. Rotating shaft; 42. Torsion spring; 50. Linkage components; 51. Fixing plate; 52. Fixing ring; 53. Vertical rod; 54. Horizontal rod; 55. Spring; 6. Positioning plate; 61. Positioning ring; 7. Electric cylinder two. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0032] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0033] Please see Figure 1 - Figure 8 A rotor skew slot mechanism includes a slide block 1 and a torsion knife mechanism 2. The slide block 1 has a positioning block 11 and a positioning block 22 at both ends. The opposite ends of the positioning blocks 11 and 22 are arc-shaped portions. The positioning blocks 11 and 22 position an iron core by closing them together. The positioning block 11 is slidably connected to the slide block 1. An electric cylinder 2 7 is connected to the positioning block 11. A receiving plate 111 for placing the iron core is provided on the positioning block 11. The torsion knife mechanism 2 includes a driving rod 21 and a driven rod 22. The driving rod 21... The active rod 21 is rotatable in the circumferential direction and axially movable, and the driven rod 22 is rotatably connected to the positioning block 11. The opposite ends of the active rod 21 and the driven rod 22 are fixed with torsion blades 23. The torsion blades 23 are used to insert into the iron core slot. The active rod 21 and the driven rod 22 are both fixed with torsion rod parts 24. The receiving plate 111 has two through slots 112 and 113 on which the torsion blades 23 move. The torsion blade 23 on the left corresponds to through slot 112 and the torsion blade 23 on the right corresponds to through slot 213.

[0034] A torsion cutter drive mechanism 3 is provided on one side of the slide block 1. The torsion cutter drive mechanism 3 includes an active plate 31 and a driven plate 32. One end of the active plate 31 is connected to an electric cylinder 33. The active plate 31 has an active groove 311 for inserting a torsion bar portion 24. The driven plate 32 has a driven groove 321 for inserting a torsion bar portion 24. Bearings 25 are fitted on the torsion bar portion 24. There are two bearings 25 on one torsion bar portion 24. The two side walls of the active groove 311 are respectively an inclined surface 312 and a vertical surface 313. The inclined surface 312 causes the driving rod 21 to rotate, which in turn drives the twisting blade 23 to rotate, thereby changing the iron core slot from a vertical slot to an inclined slot. The two side walls of the driven slot 321 are the inclined surface 322 and the vertical surface 323, respectively. The inclined surface 322 causes the driven rod 22 to rotate, which in turn drives the twisting blade 23 to rotate, thereby changing the iron core slot from a vertical slot to an inclined slot. The two twisting blades 23 cooperate to stabilize the iron core inclined slot. The vertical surface 313 and the vertical surface 323 keep the two twisting blades 23 in a vertical state. The slide block 1 has a moving groove for moving the torsion bar 24 and bearing 25 on the positioning block 11. A guide slope 13 for resetting the bearing 25 is provided at one end of the moving groove near the driven groove 321. The torsion blade drive mechanism 3 also includes a switching gear 34, which is rotatably connected to one side plate of the slide block 1. A driving rack 35 and a driven rack 36 mesh on both sides of the switching gear 34, respectively. The driving rack 35 is fixed to the driving plate 31, and the driven rack 36 is fixed to the driven plate 32. The two torsion blades 23 twist simultaneously through the cooperation of the switching gear 34, the driving rack 35, and the driven rack 36. Auxiliary components 4 are provided on both sides of the receiving plate 111. Each auxiliary component 4 includes an arc-shaped plate 41, on which a rotating shaft 42 is fixed. The rotating shaft 42 is connected to the positioning block 11 via a torsion spring 43. The arc-shaped plate 41 prevents the iron core from moving. There is space for the arc plate 41 to rotate between positioning block 11 and positioning block 2 12.

[0035] A linkage component 5 is provided between the active rod 21 and the positioning block 11. The linkage component 5 includes a fixing plate 51 fixed on the positioning block 11. The end of the fixing plate 51 is arc-shaped. A fixing ring 52 is fixed on the active rod 21. A vertical rod 53 is rotatably connected to the positioning block 22. A horizontal rod 54 is fixed on the vertical rod 53. A movable through groove for the horizontal rod 54 to rotate is opened on one side of the positioning block 22. One end of the horizontal rod 54 contacts the fixing ring 52. There are two horizontal rods 54. The two horizontal rods 54 are located on the upper and lower sides of the active rod 21, respectively. The contact end of the horizontal rod 54 is hemispherical. The hemispherical shape is used to reduce friction. The other end of the horizontal rod 54 extends out of the positioning block 22. One end of the active rod 21 extends out of the positioning block 22. A spring 55 is sleeved on the active rod 21. The two ends of the spring 55 abut against the end of the active rod 21 and the positioning block 22, respectively.

[0036] The slide block 1 has a groove, and a positioning plate 6 is fixed in the groove. The two ends of the positioning plate 6 form sliding grooves with the side walls of the groove, and the two sliding grooves are used for the movement of the driving plate 31 and the driven plate 32. The positioning plate 6 is provided with a positioning ring 61, which is used for the shaft insertion after the core is twisted. Specifically, after the core is twisted by the twisting blade 23, the shaft is inserted into the core. The lower end of the shaft passes through the through groove 113 and is inserted into the positioning ring 61. The shaft is used for the core to disengage from the receiving plate 111 during the return process.

[0037] In use, the iron core is placed on the receiving plate 111 with the iron core slot vertical. The twisting blade 23 on the positioning block 11 is inserted into the iron core slot. At this time, one side of the iron core contacts the arc-shaped surface of the positioning block 11, and the other side contacts the arc-shaped plate 41, thus maintaining close stability. Then, the electric cylinder 7 moves the positioning block 11 on the slide 1 towards the positioning block 22. While the positioning block 11 moves, the fixing plate 51 moves accordingly. Before the iron core contacts the arc-shaped surface of the positioning block 22, the fixing plate 51 abuts against the horizontal bar 54. The horizontal bar 54 drives the vertical bar 53 to rotate. The hemispherical end of the horizontal bar 54 abuts against the fixing ring 52. The fixing ring 52 carries the driving rod 21 towards the iron core. As the core moves, the drive rod 21 moves the torsion bar 24 and the torsion blade 23. At this time, the spring 55 is compressed. When the iron core contacts the arc-shaped surface of the positioning block 12, both torsion blades 23 are inserted into the vertical groove of the iron core. Then, the electric cylinder 33 moves the drive plate 31, which in turn moves the bearing 25. The bearing 25 rotates the torsion bar 24 and the drive rod 21, and the drive rod 21 rotates the torsion blades 23, thus changing the iron core from a vertical groove to an inclined groove. At the same time as the drive plate 31 moves, the switching gear 34 rotates, which in turn moves the driven rack 36. The driven plate 32 also moves the bearing 25, which in turn moves the positioning block 12. The torsion bar 24 and driven rod 22 on slide 1 rotate, causing the torsion blade 23 to rotate. Simultaneously, the two torsion blades 23 cause the iron core to change from a vertical slot to an inclined slot. After the inclined slot is rotated, the shaft insertion operation is performed. After shaft insertion, the electric cylinder 7 causes the positioning block 11 and the receiving plate 111 to return, and the fixing plate 51 returns together. The fixing plate 51 separates from the crossbar 54, and the spring 55 causes the driving rod 21 to move to the right. The iron core remains stationary under the action of the shaft, which leaves the through slot 113, causing the two torsion blades 23 to leave the inclined slot. The electric cylinder 7 continues to move the positioning block 11, and the bearing 25 on the positioning block 11 rotates through the guide inclined surface 13 of the slide 1. The rotor is reset. The bearing 25 rotates, causing the torsion bar 24 and the driven rod 22 to restore the torsion blade 23 to a vertical position. Then, the electric cylinder 33 causes the drive plate 31 to return to its vertical position. The drive plate 31 drives the bearing 25 to rotate, which in turn causes the drive rod 21 to rotate. The drive rod 21 causes the torsion blade 23 to return to a vertical position. While the drive plate 31 moves, the driven plate 32 returns to its vertical position through the cooperation of the drive rack 35, the switching gear 34 and the driven rack 36. During the separation of the receiving plate 111 from the iron core, the arc plate 41 rotates outward under the action of the iron core. After the arc plate 41 separates from the iron core, it returns to its vertical position under the action of the torsion spring 43. Finally, the rotor is removed.

[0038] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A rotor skew slot mechanism characterized by, Include: The slide (1) is provided with positioning block one (11) and positioning block two (12) at both ends, the positioning block one (11) and the positioning block two (12) are folded by positioning iron core, the positioning block one (11) is slidably connected with the slide (1), the positioning block one (11) is provided with the receiving plate (111) for placing the iron core; The twist knife mechanism (2) includes driving rod (21) and driven rod (22), the driving rod (21) is movably connected with the positioning block two (12), the driven rod (22) is rotatably connected with the positioning block one (11), the opposite ends of the driving rod (21) and the driven rod (22) are fixed with twist knife piece (23), the driving rod (21) and the driven rod (22) are fixed with twist rod part (24) on the upper.

2. A rotor skew slot mechanism according to claim 1, wherein: The slide (1) is provided with twist knife drive mechanism (3) on one side, the twist knife drive mechanism (3) includes driving plate (31) and driven plate (32), one end of the driving plate (31) is connected with electric cylinder one (33), the driving plate (31) is provided with driving slot (311) that twist rod part (24) is inserted, the driven plate (32) is provided with driven slot (321) that twist rod part (24) is inserted.

3. A rotor skew slot mechanism according to claim 2, wherein: The twist rod part (24) is provided with bearing (25), the two side walls of the driving slot (311) are inclined surface one (312) and vertical surface one (313) respectively, the two side walls of the driven slot (321) are inclined surface two (322) and vertical surface two (323) respectively.

4. A rotor skew slot mechanism according to claim 3, wherein: The twist knife drive mechanism (3) further includes switching gear (34), the two sides of the switching gear (34) are respectively engaged with driving rack (35) and driven rack (36), the driving rack (35) is fixed with the driving plate (31), the driven rack (36) is fixed with the driven plate (32).

5. A rotor skew slot mechanism according to claim 1, wherein: The driving rod (21) and the positioning block one (11) are provided with linkage component (5), the linkage component (5) includes fixed plate (51) fixed on the positioning block one (11), the end of the fixed plate (51) is arc-shaped, the driving rod (21) is fixed with fixed ring (52), the positioning block two (12) is rotatably connected with vertical rod (53), the vertical rod (53) is fixed with horizontal rod (54), one end of the horizontal rod (54) is in contact with the fixed ring (52), the other end of the horizontal rod (54) extends out of the positioning block two (12), one end of the driving rod (21) extends out of the positioning block two (12), the driving rod (21) is provided with spring (55), the two ends of the spring (55) are respectively in contact with the end of the driving rod (21) and the positioning block two (12).

6. A rotor skew slot mechanism according to claim 5, wherein: The contact end of the horizontal rod (54) is hemispherical.

7. A rotor skew slot mechanism according to claim 2, wherein: The slide (1) is provided with recess, the positioning plate (6) is fixed in the recess, the two ends of the positioning plate (6) and the side wall of the recess form sliding groove respectively.

8. A rotor skew slot mechanism according to claim 7, wherein: The positioning plate (6) is provided with positioning ring (61).

9. A rotor skew slot mechanism according to claim 1, wherein: The receiving plate (111) is provided with two through grooves (112) and (113) that the twist knife piece (23) moves.

10. A rotor skew slot mechanism according to claim 9, wherein: The two sides of the receiving plate (111) are provided with auxiliary parts (4), the auxiliary parts (4) comprise arc-shaped plates (41), the arc-shaped plates (41) are fixed with rotating shafts (42), and the rotating shafts (42) are connected with the positioning blocks (11) through torsional springs (43).

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