Insulation paper cutting device on rotor

Abstract

The purpose of the present invention is to provide a device for cutting insulating paper on a rotor that can improve the efficiency of insulating paper cutting and reduce labor intensity. To achieve the above purpose, the present invention adopts the following technical scheme: a device for cutting insulating paper on a rotor, comprising a fixed block, a plurality of first blades are provided on the fixed block, the plurality of first blades are arranged in a ring-shaped interval with the fixed block as the center, the rear end of the first blade is fixed to the fixed block, the front end of the first blade has a cutting edge, the cutting edges of the first blade are all located on the front side of the fixed block, the plurality of first blades are enclosed to form a clearance space for making way for the rotor, the cutting edge of the first blade includes a left-right symmetrical first cutting edge and a second cutting edge, the first cutting edge and the second cutting edge constitute a V-shaped structure opening to the front side, and the middle part of the front end of the first blade extends to the front side to form a first support portion located between the first cutting edge and the second cutting edge.

Description

Technical Field

[0001] The invention relates to a device for cutting insulating paper on a rotor. Background Art

[0002] During the assembly process of the motor rotor, the insulating paper needs to be inserted into the wire embedding groove of the rotor, and then the coil is embedded in the wire embedding groove. Finally, the excess parts of the insulating paper at both ends need to be cut off. If the insulating paper in each wire embedding groove is cut manually one by one, the efficiency is low and the labor intensity is very high. Summary of the invention

[0003] The object of the present invention is to provide an insulating paper cutting device on a rotor which can improve the insulating paper cutting processing efficiency and reduce the labor intensity.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an insulating paper cutting device on a rotor, comprising a fixed block, on which a plurality of first blades are provided, the plurality of first blades are arranged in a ring-shaped interval with the fixed block as the center, the rear end of the first blade is fixed to the fixed block, the front end of the first blade has a cutting edge, the cutting edges of the first blade are all located on the front side of the fixed block, the plurality of first blades are enclosed to form a clearance space for making way for the rotor, the cutting edge of the first blade comprises a first cutting edge and a second cutting edge that are symmetrical on the left and right, the first cutting edge and the second cutting edge constitute a V-shaped structure opening to the front side, and the middle part of the front end of the first blade extends to the front side to form a first supporting portion located between the first cutting edge and the second cutting edge.

[0005] When the device of the present invention is used, the rotor or the fixed block is moved so that the first support portion of the front end of the first blade is located inside the insulating paper, and then the rotor or the fixed block is moved again so that the edge of the insulating paper is abutted by the connection between the first blade and the side of the first support portion, and the connection between the second blade and the side of the first support portion, and the rotor or the fixed block is continued to move to achieve the cutting of the insulating paper, so that the insulating paper of the coil facing the notch of the wire embedding groove is cut off. The present invention can cut off multiple insulating papers at one time, with high efficiency and low labor intensity for workers.

[0006] Preferably, the cutting edge of the first blade is W-shaped and is composed of the first cutting edge, the third cutting edge, the fourth cutting edge and the second cutting edge. The left and right side surfaces of the first support portion constitute the third cutting edge and the fourth cutting edge. The third cutting edge is closer to the first cutting edge than the fourth cutting edge. The rear end of the first cutting edge is connected to the rear end of the third cutting edge, and the rear end of the second cutting edge is connected to the rear end of the fourth cutting edge. The above arrangement allows the insulating paper to contact the cutting edge of the first blade at the rear end of the first cutting edge and the rear end of the third cutting edge, and at the rear end of the second cutting edge and the rear end of the fourth cutting edge, so that the cutting of the insulating paper is smoother.

[0007] Preferably, a guide portion extends forward from the middle of the fixing block, and the guide portion is formed with a guide groove opening forward to allow the rotor shaft of the rotor to make way. The guide portion is used to guide the rotor shaft.

[0008] Preferably, the first support portion is in a triangular structure with the tip facing forward. The above arrangement facilitates the processing of the first blade. Sometimes the edge of the insulating paper relative to the axial direction of the rotor shaft may be wrinkled, and the first support portion is in a triangular structure with a tip, so that the first support portion can be moved to the inside of the insulating paper more easily.

[0009] Preferably, a second blade is disposed outside the first blade, the front end of the second blade has a cutting edge, the cutting edge of the second blade includes a fifth cutting edge corresponding to the first cutting edge and located behind the first cutting edge, and a sixth cutting edge corresponding to the second cutting edge and located behind the second cutting edge, the fifth cutting edge and the sixth cutting edge forming a V-shaped structure opening to the front side. The second blade is provided to make it easier to cut the insulating paper.

[0010] Preferably, the middle portion of the cutting edge of the second blade extends forward to form a second supporting portion, the second supporting portion is a trapezoidal structure with a narrow front end and a wide rear end, and the second supporting portion is used to spread the cut paper to both sides.

[0011] Preferably, the second blade includes a fifth cutting edge, a seventh cutting edge, an eighth cutting edge and a sixth cutting edge, the left and right sides of the second supporting portion constitute the seventh cutting edge and the eighth cutting edge, the seventh cutting edge is located behind the third cutting edge, the eighth cutting edge is located behind the fourth cutting edge, the seventh cutting edge is closer to the fifth cutting edge than the eighth cutting edge, the rear end of the fifth cutting edge is connected to the rear end of the seventh cutting edge, and the rear end of the sixth cutting edge is connected to the rear end of the eighth cutting edge. The above arrangement makes the cutting of the insulating paper smoother.

[0012] Preferably, the front end surface of the second supporting portion extends from front to back toward the outer side of the fixing block to form a ninth cutting edge. The above arrangement makes the cutting of the insulating paper smoother.

[0013] Preferably, the fixing block is fixed to the output end of the driving mechanism, and the fixing block is located between the output end of the driving mechanism and the rotor positioning seat, and the fixing block moves upward or downward under the action of the driving mechanism. The device of the present invention can be used in conjunction with the driving mechanism to improve work efficiency, and the driving mechanism can select a cylinder press.

[0014] The invention has the advantages of improving the efficiency of cutting and processing of insulating paper and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of the present invention;

[0016] Figure 2Another structural schematic diagram of the present invention;

[0017] Figure 3 A schematic diagram of the structure of the first blade and the second blade of the present invention;

[0018] Figure 4 Another structural schematic diagram of the first blade and the second blade of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the present invention in cooperation with the driving mechanism and the rotor positioning seat. DETAILED DESCRIPTION

[0020] The present invention will be further described below based on the accompanying drawings and specific embodiments.

[0021] Depend on Figures 1 to 4 As shown, a device for cutting insulating paper on a rotor of the present invention comprises a fixed block 1, on which a plurality of first blades 2 are provided, the plurality of first blades 2 are evenly spaced in a ring centered on the fixed block, the rear end of the first blade 2 is fixed to the fixed block 1 by a fastener, the front end of the first blade 2 has a cutting edge, the cutting edges of the first blade 2 are all located on the front side of the fixed block 1, the plurality of first blades 2 are enclosed to form a clearance space for making way for the rotor, the cutting edge of the first blade 2 comprises a left-right symmetrical first cutting edge 21 and a second cutting edge 22, the first cutting edge 21 and the second cutting edge 22 form a V-shaped structure open to the front side, and the middle part of the front end of the first blade 2 extends to the front side to form a first supporting portion 20 located between the first cutting edge 21 and the second cutting edge 22.

[0022] The cutting edge of the first blade 2 is W-shaped and consists of a first cutting edge 21, a third cutting edge 23, a fourth cutting edge 24 and a second cutting edge 22. The left and right side surfaces of the first support portion 20 constitute the third cutting edge 23 and the fourth cutting edge 24. The third cutting edge 23 is closer to the first cutting edge 21 than the fourth cutting edge 24. The rear end of the first cutting edge 21 is connected to the rear end of the third cutting edge 23, and the rear end of the second cutting edge 22 is connected to the rear end of the fourth cutting edge 24. The first support portion 20 is a triangular structure with the tip facing forward.

[0023] The second blade 3 is disposed outside the first blade 2, and the front end of the second blade 3 has a cutting edge, and the cutting edge of the second blade 3 includes a fifth cutting edge 31 corresponding to the first cutting edge 21 and located at the rear side of the first cutting edge 21, and a sixth cutting edge 32 corresponding to the second cutting edge 22 and located at the rear side of the second cutting edge 22, and the fifth cutting edge 31 and the sixth cutting edge 32 form a V-shaped structure open to the front side. The middle part of the cutting edge of the second blade 3 extends forward to form a second supporting portion 30, and the second supporting portion 30 is a trapezoidal structure with a narrow front end and a wide rear end.

[0024] The second blade 3 includes a fifth cutting edge 31, a seventh cutting edge 33, a ninth cutting edge 35, an eighth cutting edge 34 and a sixth cutting edge 32. The left and right sides of the second support portion 30 constitute the seventh cutting edge 33 and the eighth cutting edge 34. The seventh cutting edge 33 is located behind the third cutting edge 23, and the eighth cutting edge 34 is located behind the fourth cutting edge 24. The seventh cutting edge 33 is closer to the fifth cutting edge 31 than the eighth cutting edge 34. The rear end of the fifth cutting edge 31 is connected to the rear end of the seventh cutting edge 33, and the rear end of the sixth cutting edge 32 is connected to the rear end of the eighth cutting edge 34. The front end surface of the second support portion 30 extends from front to back to the outer side of the circumference of the fixed block 1 to constitute the ninth cutting edge 35.

[0025] Depend on Figure 2 , Figure 5 As shown, a guide portion 11 extends forward from the middle of the fixed block 1, and a guide groove 12 is formed on the guide portion 11, which opens forward to give way to the rotor shaft of the rotor. The fixed block 1 is fixed to the output end of the driving mechanism 5, and the driving mechanism 5 is a cylinder press and fixed to the upper side of the bracket 6. A bottom plate 7 is provided on the lower side of the bracket, and a rotor positioning seat 8 is provided on the bottom plate. The rotor positioning seat has a giving way groove 81 that opens upward to give way to the rotor shaft. The fixed block 1 is located between the output end of the driving mechanism 5 and the rotor positioning seat 8. The guide portion 11 and the rotor positioning seat 8 are coaxially arranged, and the fixed block 1 moves upward or downward under the action of the driving mechanism. Among them, the fixed block 1 extends backward with a connector 10 for linkage with the driving mechanism.

[0026] When the device of this embodiment is used, the rotor is placed on the rotor positioning seat so that the rotor shaft is arranged vertically and coaxial with the guide part, and then the driving mechanism is started to move the fixing block downward to cut the insulating paper on the rotor.

[0027] The invention has the advantages of improving the efficiency of cutting and processing of insulating paper and reducing labor intensity.

Claims

1. A device for cutting insulating paper on a rotor, characterized in that A fixing block is included, on which a plurality of first blades are provided, the plurality of first blades are arranged in a ring-shaped interval with the fixing block as the center, the rear end of the first blade is fixed to the fixing block, the front end of the first blade has a cutting edge, the cutting edges of the first blade are all located at the front side of the fixing block, the plurality of first blades are enclosed to form a clearance space for making way for the rotor, the cutting edges of the first blades include a first cutting edge and a second cutting edge that are symmetrical on both sides, the first cutting edge and the second cutting edge form a V-shaped structure that opens to the front side, the middle part of the front end of the first blade extends to the front side to form a first supporting portion located between the first cutting edge and the second cutting edge; the first supporting portion is a triangular structure with the tip facing forward; The cutting edge of the first blade is W-shaped and is composed of a first cutting edge, a third cutting edge, a fourth cutting edge and a second cutting edge. The left and right side surfaces of the first supporting portion constitute the third cutting edge and the fourth cutting edge. The third cutting edge is closer to the first cutting edge than the fourth cutting edge. The rear end of the first cutting edge is connected to the rear end of the third cutting edge, and the rear end of the second cutting edge is connected to the rear end of the fourth cutting edge. A second blade is provided on the outer side of the first blade, and the front end of the second blade has a cutting edge. The cutting edge of the second blade includes a fifth cutting edge corresponding to the first cutting edge and located at the rear side of the first cutting edge, and a sixth cutting edge corresponding to the second cutting edge and located at the rear side of the second cutting edge. The fifth cutting edge and the sixth cutting edge constitute a V-shaped structure opening to the front side.

2. The rotor insulating paper cutting device according to claim 1, characterized in that A guide portion is extended forward from the middle of the fixing block, and a guide groove is formed on the guide portion and is open forward to allow the rotor shaft of the rotor to make way.

3. The rotor insulating paper cutting device according to claim 1, characterized in that The middle portion of the cutting edge of the second blade extends forward to form a second supporting portion, and the second supporting portion is in a trapezoidal structure with a narrow front end and a wide rear end.

4. The rotor insulating paper cutting device according to claim 3, characterized in that The second blade includes a fifth cutting edge, a seventh cutting edge, an eighth cutting edge and a sixth cutting edge. The left and right side surfaces of the second supporting portion constitute the seventh cutting edge and the eighth cutting edge. The seventh cutting edge is located behind the third cutting edge, and the eighth cutting edge is located behind the fourth cutting edge. The seventh cutting edge is closer to the fifth cutting edge than the eighth cutting edge. The rear end of the fifth cutting edge is connected to the rear end of the seventh cutting edge, and the rear end of the sixth cutting edge is connected to the rear end of the eighth cutting edge.

5. The insulating paper cutting device on the rotor according to claim 3, characterized in that The front end surface of the second supporting portion extends from front to rear toward the outer side of the fixing block in the circumferential direction to form a ninth cutting edge.

6. The insulating paper cutting device on the rotor according to claim 1, characterized in that The fixing block is fixed to the output end of the driving mechanism. The fixing block is located between the output end of the driving mechanism and the rotor positioning seat. The fixing block moves upward or downward under the action of the driving mechanism.

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