Stator core sectioning pressing die tool

Abstract

The invention discloses a stator core sectioning pressing die tool which comprises a stacking support and an automatic discharging mechanism arranged on a hydraulic machine, a jacking mechanism is arranged at the bottom of a stacking channel, the automatic discharging mechanism comprises a first servo motor, and an output shaft of the first servo motor is connected with a swing frame. The swing frame is provided with a lifting seat driven by a first electric telescopic rod, the lifting seat is provided with a rotating ring, the rotating ring is provided with a plurality of electromagnets used for sucking split sections, the lifting seat is provided with a second servo motor, an output shaft of the second servo motor is connected with a gear, and the rotating ring is provided with a gear ring meshed with the gear; a driving mechanism is arranged on the swing frame and connected with a positioning check block, and a notch matched with one side of the split section in shape is formed in the positioning check block. The stator iron core sectioning pressing die tool can automatically complete the operation of sectioning and loading into the gap between the two positioning blocks, thereby effectively improving the processing efficiency, reducing the operation intensity of workers, and saving the production cost.

Description

Technical Field

[0001] The invention belongs to the technical field of stator core processing equipment, in particular to a stator core split die pressing tool. Background Art

[0002] The split stator core is a structure that divides the stator core into several parts along the circumferential direction. These parts are usually called split or fan-shaped core units, and then they are spliced ​​into a complete circular stator core in a certain way. The split structure can make the shape of the stator core punching sheet closer to the fan shape. Compared with the circular punching sheet of the integral stator core, it can reduce the waste of scraps during the stamping process, improve the utilization rate of raw materials such as silicon steel sheets, and thus reduce material costs.

[0003] When assembling multiple petals of a split stator core into one, a specific press-fitting mold is required. For example, CN104362808A discloses a mold for splicing and pressing a stator core, which is a press-fitting mold for a split stator core, including a plurality of positioning blocks distributed around the circumference, the gaps between the positioning blocks match the two sides of each petal, and the adjacent petals are spliced ​​through the guidance of the positioning blocks and then pressed by the pressing mechanism. The existing press-fitting operation is generally done manually by workers, who have to put each petal into the gap between the two positioning blocks one by one, which is labor-intensive and inefficient. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a stator core split die pressing tool, which can automatically complete the operation of inserting the split core into the gap between two positioning blocks, effectively improving processing efficiency, reducing workers' operating intensity, and saving production costs.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a stator core split die tooling, comprising a stacking bracket with a vertical stacking channel and an automatic unloading mechanism arranged on a hydraulic press, a lifting mechanism is arranged at the bottom of the stacking channel, the automatic unloading mechanism comprises a first servo motor, the output shaft of the first servo motor is connected to a swing frame, a lifting seat driven by a first electric telescopic rod is arranged on the swing frame, a rotating ring is arranged on the lifting seat, a plurality of electromagnets for sucking the split petals are arranged on the rotating ring, a second servo motor is arranged on the lifting seat, a gear is connected to the output shaft of the second servo motor, and a gear ring meshing with the gear is arranged on the rotating ring; a driving mechanism is arranged on the swing frame, the driving mechanism is connected to a positioning block that cooperates with the rotating ring for adjusting the position of the split petals, the positioning block is provided with a notch matching the shape of one side of the split petals, and the driving mechanism drives the positioning block to move at the rotation trajectory position of the split petals or away from the rotation trajectory of the split petals. When this stator core split-flap pressing tool is working, workers stack the petals and load them into the stacking channel. The stacking channel filled with petals is placed below the material-taking side of the automatic discharging mechanism. During the working process, the lifting mechanism gradually lifts the internal petals to cooperate with the automatic discharging mechanism to take materials. When the automatic discharging mechanism takes materials, the lifting mechanism lifts the petals, and the first electric telescopic rod extends to drive the lifting seat to descend and fit the petals in the stacking channel. The electromagnet is energized to attract the top petal, and then the first electric telescopic rod retracts and the lifting seat rises. The second servo motor drives the rotating ring to rotate, driving the petals adsorbed on the rotating ring to rotate toward the positioning block. After the petal hits the positioning block, the rotating ring rotates a certain angle so that the petal is completely matched with the notch on the block, that is, the positioning is completed. Then the second servo motor drives the rotating ring to reverse to move the petals Accurately rotate to the required placement angle, and then the positioning block is driven by the driving mechanism to a position away from the rotation trajectory of the petal. During the process of the second servo motor adjusting the petal angle, the first servo motor drives the swing frame to rotate, and moves the rotating ring with the petal adsorbed to the top of the press-fitting mold. Then the first electric telescopic rod is extended to drive the lifting seat to descend, and the electromagnet is powered off to place the petal in the gap between the two positioning blocks on the press-fitting mold, thus completing the assembly of a petal. During assembly, after the petal is positioned, the rotating ring rotates at a different angle each time, so multiple petals can be placed in the shape of a circular stator core on the press-fitting mold, and then the hydraulic press applies pressure to the press-fitting mold to assemble the petals. Workers only need to take out the pressed stator core, which effectively improves processing efficiency, reduces workers' operating intensity, and saves production costs.

[0006] In the above technical solution, preferably, the driving mechanism is a swing motor, and the positioning block is connected to the swing arm of the swing motor. With this structure, the positioning block swings at the rotation track position of the petal or away from the rotation track of the petal through the swing of the swing motor.

[0007] In the above technical solution, preferably, both sides of the notch have gradually expanding guiding slopes. This structure can effectively guide the deflected petal to enter the notch and align with the notch.

[0008] In the above technical solution, preferably, a visual inspection device is provided on the swing frame, the visual inspection device is aligned with the positioning block, a detection through hole is provided on the rotating ring at the position for absorbing the petal, the visual inspection device photographs and detects whether the petal in the detection through hole is accurately in place, and if the petal is not accurately in place, the rotating ring is driven by the second servo motor to reset and re-absorb the petal. This structure can detect whether the petal is accurately in place, avoiding the inability to accurately assemble the petals on the press-fitting mold during press-fitting due to the inaccurate placement of the petal.

[0009] In the above technical solution, preferably, the bottom of the stacking bracket is detachably fixed in the positioning cylinder of the rotating disk, the bottom of the stacking bracket and the positioning cylinder are both non-circular and matched, a plurality of the positioning cylinders are evenly arranged on the rotating disk, and the stacking bracket is driven to rotate by a third servo motor. With this structure, the petals can be automatically supplied through the rotation of the rotating disk, and the stacking bracket can be removed from the rotating disk for easy loading of the petals.

[0010] In the above technical solution, preferably, the lifting mechanism includes a stand that can move radially along the rotating disk, a lifting seat is vertically slidably arranged on the stand, a screw driven by a motor is arranged on the stand, the screw is threadedly matched with the lifting seat, the stacking bracket is surrounded by a plurality of vertical rods, a support portion for supporting the petals is arranged on the vertical rod, a space for inserting the lifting seat is provided between the support portion and the bottom of the stacking bracket, and the lifting mechanism includes a support that can move radially along the rotating disk to insert the lifting seat into or leave the stacking channel. The use of this structure allows one lifting mechanism to be used for the lifting operation of the petals in each stacking bracket.

[0011] In the above technical solution, preferably, a slider is provided at the bottom of the stand, and the slider is slidably arranged on a slide rail arranged along the radial direction of the rotating disk. The adoption of this structure makes the stand slide more smoothly.

[0012] In the above technical solution, preferably, the stand is connected to the second electric telescopic rod. With this structure, the movement of the stand and the rotation of the rotating disk can be automatically coordinated through the control of the control device.

[0013] In the above technical solution, preferably, the automatic unloading mechanism and the hydraulic press are fixedly provided with a Hall sensor, and the swing frame is provided with a positioning magnet, and the positioning magnet cooperates with the Hall sensor to position the swing frame at the material picking position and the material unloading position. The use of this structure can more accurately determine and position the swing frame, ensuring that the swing of the swing frame can accurately align the rotating ring with the material picking position and the material unloading position.

[0014] Compared with the prior art, the present invention has the following beneficial effects: when the stator core split-flange pressing tooling is working, the worker stacks the petals and loads them into the stacking channel, and the stacking channel filled with petals is placed below the material-taking side of the automatic discharging mechanism. During the working process, the internal petals are gradually lifted by the lifting mechanism to cooperate with the automatic discharging mechanism to take materials. When the automatic discharging mechanism takes materials, the first electric telescopic rod is extended to drive the lifting seat to descend and fit the petals in the stacking channel, the electromagnet is energized to attract the top petal, and then the first electric telescopic rod is retracted and the lifting seat rises, and the second servo motor drives the rotating ring to rotate, driving the petals adsorbed on the rotating ring to rotate toward the positioning block. After the petals hit the positioning block, the rotating ring rotates a certain angle so that the petals are completely matched with the notches on the block, that is, the positioning is completed, and then the second servo motor drives the rotating ring to rotate The cam is driven by a drive mechanism to move the cam frame away from the rotation track of the cam. During the process of adjusting the cam angle by the second servo motor, the first servo motor drives the swing frame to rotate, and moves the rotating ring with the cam adsorbed on it to the top of the press-fitting die. After that, the first electric telescopic rod is extended to drive the lifting seat to descend. The electromagnet is powered off and the cam is placed in the gap between the two positioning blocks on the press-fitting die, thus completing the assembly of a cam. During assembly, after the cam is positioned, the rotating ring rotates at a different angle each time, so that multiple cams can be placed in the shape of a circular stator core on the press-fitting die. After that, the hydraulic press applies pressure to the press-fitting die to assemble the cams. Workers only need to take out the pressed stator core, which effectively improves processing efficiency, reduces workers' operating intensity, and saves production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the overall structure of an embodiment of the present invention installed on a hydraulic press.

[0016] Figure 2 It is a schematic diagram of the side structure of the swing frame in an embodiment of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the swing frame in another direction in an embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the partial structure of the swing frame in the embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure when the petals and the positioning stopper are matched and fitted in an embodiment of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the stator core after the petals are spliced ​​together in an embodiment of the present invention.

[0021] Figure 7 It is a schematic structural diagram of a stacked bracket installed on a rotating disk in an embodiment of the present invention.

[0022] Figure 8 It is a schematic diagram of the top structure of the lifting seat in the embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figures 1 to 8A stator core split die tooling comprises a stacking bracket 1 with a vertical stacking channel and an automatic unloading mechanism 2 arranged on a hydraulic press, a lifting mechanism 3 is arranged at the bottom of the stacking channel, the automatic unloading mechanism 2 comprises a first servo motor 4, the output shaft of the first servo motor 4 is connected to a swing frame 5, a lifting seat 7 driven by a first electric telescopic rod 6 is arranged on the swing frame 5, a rotating ring 8 is arranged on the lifting seat 7, a plurality of electromagnets 10 for sucking the split petals 9 are arranged on the rotating ring 8, a second servo motor 11 is arranged on the lifting seat 7, a gear 12 is connected to the output shaft of the second servo motor 11, and a gear ring 13 meshing with the gear 12 is arranged on the rotating ring 8; a driving mechanism is arranged on the swing frame 5, the driving mechanism is connected to a positioning block 14 that cooperates with the rotating ring 8 to adjust the position of the split petal 9, a notch 15 matching the shape of one side of the split petal 9 is arranged on the positioning block 14, and the driving mechanism drives the positioning block 14 to move at the rotation track position of the split petal 9 or away from the rotation track of the split petal 9. When this stator core petal 9 die pressing tool is working, the worker stacks the petals 9 and loads them into the stacking channel. The stacking channel filled with petals 9 is placed below the material-taking side of the automatic discharging mechanism 2. During the working process, the lifting mechanism 3 gradually lifts the internal petals 9 to cooperate with the automatic discharging mechanism 2 to take materials. When the automatic discharging mechanism 2 takes materials, the lifting mechanism 3 lifts the petals 9, and the first electric telescopic rod 6 extends to drive the lifting seat 7 to descend and fit the petals 9 in the stacking channel. The electromagnet 10 is energized to attract the top petal 9, and then the first electric telescopic rod 6 retracts the lifting seat 7 to rise, and the second servo motor 11 drives the rotating ring 8 to rotate, driving the petals 9 adsorbed on the rotating ring 8 to rotate toward the positioning block 14. After the petal 9 hits the positioning block 14, the rotating ring 8 and rotates a certain angle so that the petal 9 is completely matched with the notch 15 on the block, that is, the positioning is completed, and then the second servo motor 11 drives the rotating The ring 8 is reversed to accurately rotate the petal 9 to the required placement angle, and then the positioning block 14 is driven by the driving mechanism to a position away from the rotation trajectory of the petal 9. During the process of the second servo motor 11 adjusting the angle of the petal 9, the first servo motor 4 drives the swing frame 5 to rotate, and moves the rotating ring 8 with the petal 9 adsorbed to the top of the press-fitting mold. Then the first electric telescopic rod 6 is extended to drive the lifting seat 7 to descend, and the electromagnet 10 is powered off to place the petal 9 in the gap between the two positioning blocks on the press-fitting mold, that is, the assembly of a piece of petal 9 is completed. During assembly, after the petal 9 is positioned, the rotating ring 8 rotates at a different angle each time, so that multiple petals 9 can be placed on the press-fitting mold in the shape of a circular stator core, and then the hydraulic press applies pressure to the press-fitting mold to assemble the petals 9. The workers only need to take out the pressed stator core, which effectively improves the processing efficiency, reduces the operating intensity of the workers, and saves production costs.

[0024] In this embodiment, both ends of the swing frame 5 have annular mounting parts, and both ends are provided with lifting seats 7. The two lifting seats 7 are centrally symmetrical with respect to the rotation center of the swing frame 5. The structures in the two lifting seats 7 are the same. By providing two lifting seats 7, one lifting seat 7 can be used for material collection while the other lifting seat 7 is used for material discharge, thereby improving work efficiency. In order to ensure the smooth lifting of the lifting seat 7, three first electric telescopic rods 6 are provided on the annular mounting part.

[0025] In this embodiment, the driving mechanism is a swing motor 16, and a positioning block 14 is connected to the swing arm of the swing motor 16. With this structure, the positioning block 14 is moved to the position of the rotation trajectory of the petal 9 or away from the rotation trajectory of the petal 9 through the swing of the swing motor 16. Of course, in other embodiments, the driving mechanism can also be other structures, such as an electric push rod and a cylinder that can move the positioning block 14 to the position of the rotation trajectory of the petal 9 or away from the rotation trajectory of the petal 9 in a linear push manner to achieve the purpose of the present invention. The positioning block 14 is detachably connected to the swing arm. Since the shape of the positioning block 14 needs to match the shape of the petal 9 to be assembled, by replacing different positioning blocks 14, the die-casting tooling can be applied to the assembly of petal stator cores of different specifications.

[0026] In this embodiment, both sides of the notch 15 are provided with gradually expanding guiding slopes 17. This structure can effectively guide the deflected petal 9 to enter the notch 15 and align with the notch 15.

[0027] Due to some abnormal conditions, the electromagnet 10 may fail to absorb the petal 9, or the petal 9 may not correctly enter the notch 15. If the subsequent operation steps are continued, the petal 9 will be missing or cannot be accurately assembled. In this embodiment, a visual inspection device 18 is provided on the swing frame 5. The visual inspection device 18 is aligned with the positioning block 14. A detection through hole is provided at the position for sucking the petal 9 on the rotating ring 8. After the rotating ring 8 rotates to the angle to complete the positioning of the petal 9, the detection through hole is aligned with the visual inspection device 18. The visual inspection device 18 photographs and detects whether the petal 9 in the detection through hole is accurately in place. If the petal 9 is not accurately in place, the rotating ring 8 is driven by the second servo motor 11 to reset and re-absorb the petal 9. The use of this structure can detect whether the petal 9 is accurately in place, avoiding the inability to accurately assemble the petal 9 on the press-fitting mold during press-fitting due to the inaccurate placement of the petal 9.

[0028] In this embodiment, the bottom of the stacking bracket 1 is detachably fixed in the positioning cylinder 20 of the rotating disk 19, the bottom of the stacking bracket 1 and the positioning cylinder 20 are both non-circular and matched, a plurality of positioning cylinders 20 are evenly arranged on the rotating disk 19, and the stacking bracket 1 is driven to rotate by the third servo motor 21. With this structure, the petals 9 can be automatically supplied through the rotation of the rotating disk 19, and the stacking bracket 1 can be removed from the rotating disk 19 to facilitate the loading of the petals 9.

[0029] In this embodiment, the lifting mechanism 3 includes a stand 22 that can move radially along the rotating disk 19, a lifting seat 23 that is vertically slidably arranged on the stand 22, a screw driven by a motor is arranged on the stand 22, and the screw is threadedly matched with the lifting seat 23. Specifically, the stand 22 is a square frame, a screw is vertically arranged in the stand 22, and two guide rods are arranged in parallel on both sides of the screw, and the guide rods pass through the guide holes of the lifting seat 23. The stacking bracket 1 is surrounded by a plurality of vertical rods 24, and a support portion 25 for supporting the petal 9 is arranged on the vertical rod 24. There is a space for inserting the lifting seat 23 between the support portion 25 and the bottom of the stacking bracket 1, and the lifting mechanism 3 includes a support portion that can move radially along the rotating disk 19 to insert the lifting seat 23 into or leave the stacking channel. The use of this structure allows one lifting mechanism 3 to be used for the lifting operation of the petal 9 in each stacking bracket 1.

[0030] In this embodiment, a slider 26 is provided at the bottom of the stand 22, and the slider 26 is slidably provided on a slide rail 27 provided along the radial direction of the rotating disk 19. This structure enables the stand 22 to slide more smoothly.

[0031] In this embodiment, the stand 22 is connected to the second electric telescopic rod 28. With this structure, the movement of the stand 22 and the rotation of the rotating disk 19 can be automatically coordinated through the control of the control device.

[0032] In this embodiment, the automatic unloading mechanism 2 and the hydraulic press are fixedly provided with a Hall sensor 29, and the swing frame 5 is provided with a positioning magnet 30, and the positioning magnet 30 cooperates with the Hall sensor 29 to position the swing frame 5 at the material picking position and the material unloading position. The use of this structure can more accurately determine and position the swing frame 5, and ensure that the swing of the swing frame 5 can accurately align the rotating ring 8 with the material picking position and the material unloading position. The material picking position refers to the position of the swing frame 5 when the rotating ring 8 is located above the stacking bracket 1, and the material unloading position refers to the position of the swing frame 5 when the rotating ring 8 is located above the press-fitting mold.

[0033] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A stator core split die tooling, characterized in that: The invention comprises a stacking support (1) having a vertical stacking channel and an automatic material discharge mechanism (2) arranged on a hydraulic press, wherein a lifting mechanism (3) is arranged at the bottom of the stacking channel, and the automatic material discharge mechanism (2) comprises a first servo motor (4), wherein the output shaft of the first servo motor (4) is connected to a swing frame (5), wherein a lifting seat (7) driven by a first electric telescopic rod (6) is arranged on the swing frame (5), wherein a rotating ring (8) is arranged on the lifting seat (7), wherein a plurality of electromagnets (10) for sucking petals (9) are arranged on the rotating ring (8), and wherein a second servo motor (10) is arranged on the lifting seat (7). 1), a gear (12) is connected to the output shaft of the second servo motor (11), and a gear ring (13) meshing with the gear (12) is provided on the rotating ring (8); a driving mechanism is provided on the swing frame (5), and the driving mechanism is connected to a positioning block (14) cooperating with the rotating ring (8) for adjusting the position of the petal (9), and the positioning block (14) is provided with a notch (15) matching the shape of one side of the petal (9), and the driving mechanism drives the positioning block (14) to move to a position on the rotation trajectory of the petal (9) or a position away from the rotation trajectory of the petal (9).

2. A stator core split die tooling as claimed in claim 1, characterized in that: The driving mechanism is a swing motor (16), and the positioning stopper (14) is connected to a swing arm of the swing motor (16).

3. A stator core split die tooling as claimed in claim 1, characterized in that: Both sides of the notch (15) are provided with gradually expanding guiding slopes (17).

4. A stator core split die tooling as claimed in claim 1, characterized in that: The swing frame (5) is provided with a visual detection device (18), the visual detection device (18) is aligned with the positioning block (14), and the rotating ring (8) is provided with a detection through hole at a position for absorbing the petal (9). The visual detection device (18) photographs and detects whether the petal (9) in the detection through hole is accurately positioned. If the petal (9) is not accurately positioned, the rotating ring (8) is driven by the second servo motor (11) to reset and re-absorb the petal (9).

5. A stator core split die tooling as claimed in claim 1, characterized in that: The bottom of the stacking bracket (1) is detachably fixed in a positioning cylinder (20) of a rotating disk (19); the bottom of the stacking bracket (1) and the positioning cylinder (20) are both non-circular and matched; a plurality of positioning cylinders (20) are evenly arranged on the rotating disk (19); and the stacking bracket (1) is driven to rotate by a third servo motor (21).

6. A stator core split die tooling as claimed in claim 5, characterized in that: The lifting mechanism (3) includes a stand (22) which can move radially along the rotating disk (19), a lifting seat (23) which is vertically slidably arranged on the stand (22), a screw driven by a motor is arranged on the stand (22), and the screw is threadedly matched with the lifting seat (23), the stacking bracket (1) is surrounded by a plurality of vertical rods (24), and the vertical rods (24) are provided with a support portion (25) for supporting the petal (9), and there is a space for inserting the lifting seat (23) between the support portion (25) and the bottom of the stacking bracket (1), and the lifting mechanism (3) includes a support portion (25) which can move radially along the rotating disk (19) to insert the lifting seat (23) into or leave the stacking channel.

7. A stator core split die tooling as claimed in claim 6, characterized in that: A sliding block (26) is provided at the bottom of the stand (22), and the sliding block (26) is slidably arranged on a sliding rail (27) radially arranged along the rotating disk (19).

8. A stator core split die tooling as claimed in claim 7, characterized in that: The stand (22) is connected to the second electric telescopic rod (28).

9. A stator core split die tooling as claimed in claim 1, characterized in that: A Hall sensor (29) is fixedly arranged on the automatic material discharge mechanism (2) and the hydraulic press, and a positioning magnet (30) is arranged on the swing frame (5). The positioning magnet (30) cooperates with the Hall sensor (29) to position the swing frame (5) at a material taking position and a material discharge position.

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