Rotor punching sheet stamping die

Abstract

A rotor punching sheet stamping die comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper female die assembly and a material pushing assembly, the lower die assembly comprises a lower female die assembly, the upper female die assembly is provided with a containing part used for containing waste materials, and the material pushing assembly is arranged on the upper die assembly in an up-down moving mode. When the upper female die assembly and the lower female die assembly interact, the material pushing assembly is pushed to move upwards, waste materials enter the containing part, and when the upper die assembly moves upwards, the material pushing assembly moves downwards under the action of external force so as to push the waste materials out of the containing part. When the rotor punching sheet stamping die is used for stamping, the upper female die assembly and the lower female die assembly interact with each other and push the material pushing assembly to move upwards so as to enable waste materials to enter the containing part, when the upper die assembly moves upwards, the material pushing assembly moves downwards under the action of external force so as to push the waste materials out of the containing part, and then the waste materials are received through the material receiving mechanism. When the structure is used for discharging the waste materials, the waste materials cannot be clamped on the die and cannot be discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch technology field, especially rotor punching piece stamping die. BACKGROUND

[0002] The rotor punching piece of motor is provided with shaft hole and annular distribution ventilation hole on the shaft hole side, the shaft hole and ventilation hole are formed by stamping die, when stamping, the waste will fall on the lower mould, then is walked away through special material discharging mechanism, but the waste is easy to be stuck on the lower mould, leads to unable to walk away, and the structure of lower mould is more complex because of setting material discharging mechanism.

[0003] Therefore, it is necessary to make further improvement. CONTENT OF UTILITY MODEL

[0004] The utility model discloses a rotor punching piece stamping die with simple structure, easy waste discharge, high production efficiency, good product quality and high practicality, which overcomes the defects of the prior art.

[0005] A rotor punching piece stamping die designed for this purpose comprises an upper die assembly and a lower die assembly, characterized in that the upper die assembly comprises an upper die assembly and a material pushing assembly, the lower die assembly comprises a lower die assembly, the upper die assembly is provided with a containing portion for containing waste, the material pushing assembly is movably arranged on the upper die assembly, the upper die assembly and the lower die assembly interact to move the material pushing assembly upward, the waste enters the containing portion, and when the upper die assembly moves upward, the material pushing assembly moves downward under the action of external force to push the waste out of the containing portion.

[0006] The upper die assembly comprises a first material returning block, the lower die assembly comprises a first punching block, the containing portion comprises a first containing hole provided on the upper die assembly, the first material returning block is movably arranged on the first containing hole, and when the upper die assembly moves downward, the first material returning block interacts with the first punching block to punch the shaft hole on the workpiece, and the first material returning block moves upward into the first containing hole under the action of the first punching block to allow the waste to enter the first containing hole.

[0007] The material pushing assembly comprises a first pushing tube and a material pushing rod movably arranged on the upper die assembly, one end of the first pushing tube is connected to the first material returning block, and the other end is connected to the material pushing rod, when the first material returning block moves upward, the material pushing rod moves upward through the first pushing tube, when the upper die assembly moves upward, the material pushing rod moves downward relative to the upper die assembly under the action of external force to drive the first pushing tube and the first material returning block to move downward, and the first material returning block pushes the waste out of the first containing hole.

[0008] The upper die assembly further comprises a second material removing block, the lower die assembly further comprises a second punching block, the accommodating part further comprises a second accommodating hole arranged on the upper die assembly, the second material removing block is movably arranged on the second accommodating hole, the second material removing block interacts with the second punching block when the upper die assembly moves downward to punch the ventilation hole on the workpiece, and the second material removing block moves upward into the second accommodating hole under the action of the second punching block to enable the waste material to enter the second accommodating hole.

[0009] The material pushing assembly further comprises a second pushing tube, one end of the second pushing tube is connected with the second material removing block, and the other end of the second pushing tube is connected with the material pushing rod, the material pushing rod is pushed upward by the second pushing tube when the second material removing block moves upward, the material pushing rod moves downward relative to the upper die assembly under the action of an external force when the upper die assembly moves upward to drive the second pushing tube and the second material removing block to move downward, and the second material removing block pushes the waste material out of the second accommodating hole.

[0010] The upper die assembly further comprises an upper die, the lower die assembly further comprises a lower die and a material removing plate, the first accommodating hole and the second accommodating hole are arranged on the upper die, the material removing plate is movably arranged on the lower die, and the material removing plate is sleeved on the outer periphery of the first punching block, the material removing plate moves downward under the action of the upper die when the upper die assembly moves downward.

[0011] A first elastic member is arranged between the material removing plate and the lower die assembly, the first elastic member is compressed when the material removing plate moves downward, and the material removing plate moves upward and resets under the action of the elastic force of the first elastic member when the upper die assembly moves upward.

[0012] The upper die assembly further comprises an outer material removing plate, the outer material removing plate is sleeved on the outer periphery of the upper die, the outer material removing plate abuts against the lower die when the upper die assembly moves downward to a corresponding position, the first material removing block acts downward on the first punching block, the upper die assembly moves downward relative to the outer material removing plate, the second material removing block acts downward on the second punching block, and the upper die acts downward on the material removing plate.

[0013] A second elastic member is arranged between the outer material removing plate and the upper die assembly, the second elastic member is compressed when the upper die assembly moves downward relative to the outer material removing plate, and the outer material removing plate moves downward and resets relative to the upper die assembly under the action of the elastic force of the second elastic member when the upper die assembly moves upward.

[0014] The upper die assembly is provided with a movable cavity, and the material pushing rod is provided with a material pushing part, and the material pushing part is movably arranged in the movable cavity.

[0015] The utility model discloses a rotor punching piece stamping die, when stamping, the upper die assembly and the lower die assembly interact, and push the material pushing subassembly and move upward to make the waste material enter the containing portion, when the upper die assembly moves upward and resets, the material pushing subassembly moves downward under the action of external force to push the waste material out of the containing portion, then the waste material is caught through the material receiving mechanism, realizes the upper die and goes out the waste material, adopts the structure and discharges the waste material, and the waste material cannot be stuck on the die and cannot be discharged, and the structure of die is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the sectional view of stamping die in an embodiment of the utility model.

[0017] Figure 2 It is the plan view of upper die in an embodiment of the utility model.

[0018] Figure 3 It is the sectional view of second material returning block in an embodiment of the utility model.

[0019] Figure 4 It is the sectional view of second push tube in an embodiment of the utility model.

[0020] Figure 5 It is the plan view of rotor punching piece in an embodiment of the utility model. PREFERRED EMBODIMENT

[0021] The utility model will be further described below in combination with the drawings and examples.

[0022] Reference Figures 1-5 , the rotor punching piece stamping die of the utility model, including upper die assembly A and lower die assembly B, upper die assembly A includes upper die assembly and material pushing subassembly, and lower die assembly B includes lower die assembly, and the containing portion for containing waste material is arranged on the upper die assembly, and the material pushing subassembly is movably arranged on the upper die assembly A, and the upper die assembly and lower die assembly interact and push the material pushing subassembly and move upward, and the waste material enters the containing portion, then the upper die assembly A moves upward and resets, and the material pushing subassembly moves downward under the action of external force to push the waste material out of the containing portion, before the waste material is pushed out of the containing portion, the external material receiving mechanism moves to the lower side of the upper die assembly A to catch the waste material pushed out of the containing portion, then the external material receiving mechanism moves from the lower side of the upper die assembly A to the outside to continue the stamping action.

[0023] The upper die assembly includes first material returning block 1, the lower die assembly includes first punching block 2, and the containing portion includes first containing hole 3 arranged on the upper die assembly, and the first material returning block 1 is movably arranged on the first containing hole 3, and when the upper die assembly A moves downward, the first material returning block 1 and the first punching block 2 interact to punch the shaft hole 5 of workpiece 4, and the first material returning block 1 moves upward and shrinks into the first containing hole 3 under the action of the first punching block 2 to make the waste material be stuck in the first containing hole 3.

[0024] The material ejector assembly includes a first push tube 6 and a push rod 7 that are movably mounted on the upper mold assembly A. The lower end of the first push tube 6 is connected to the first ejector block 1, and the upper end is connected to the push rod 7. When the first ejector block 1 moves upward, it pushes the push rod 7 upward through the first push tube 6. When the upper mold assembly A moves upward and resets, the push rod 7 moves downward relative to the upper mold assembly A under the action of external force, thereby driving the first push tube 6 and the first ejector block 1 to move downward. The first ejector block 1 pushes the waste material out of the first receiving hole 3. Specifically, when the upper mold assembly A moves upward and resets to the corresponding position, the limiting mechanism on the machine will restrict the upward movement of the push rod 7. At this time, the push rod 7 stops moving, the upper mold assembly A continues to move upward, and then the push rod 7 moves downward relative to the upper mold assembly A. Consequently, the first push tube 6 and the first ejector block 1 also move downward relative to the upper mold assembly A.

[0025] The upper die assembly also includes a second ejector block 8, and the lower die assembly also includes a second punching block (not shown in the figure). The receiving part also includes a second receiving hole 9 provided on the upper die assembly. The second ejector block 8 is movably disposed on the second receiving hole 9. When the upper die assembly A moves downward, the second ejector block 8 interacts with the second punching block to punch the workpiece 4 out of the ventilation hole 10. Under the action of the second punching block, the second ejector block 8 moves upward and retracts into the second receiving hole 9 so that the waste material enters the second receiving hole 9. The working principle of the second ejector block 8, the second punching block and the second receiving hole 9 is the same as the working principle of the first ejector block 1, the first punching block 2 and the first receiving hole 3. The ventilation holes 10 are distributed in a ring around the circumference of the shaft hole 5, the second ejector block 8 is distributed in a ring around the circumference of the first ejector block 1, the second punching block is distributed in a ring around the circumference of the first punching block 2, and the second receiving hole 9 is distributed in a ring around the circumference of the first receiving hole 3. The workpiece 4 is a rotor lamination.

[0026] The ejector assembly also includes a second ejector tube 11, with the lower end of the second ejector tube 11 connected to the second ejector block 8 and the upper end connected to the ejector rod 7. When the second ejector block 8 moves upward, it pushes the ejector rod 7 upward through the second ejector tube 11. When the upper mold assembly A moves upward, the ejector rod 7 moves downward relative to the upper mold assembly A under the action of external force, so as to drive the second ejector tube 11 and the second ejector block 8 to move downward. The second ejector block 8 pushes the waste material out of the second receiving hole 9. The first ejector block 1 and the second ejector block 8 simultaneously push the ejector rod 7 upward. Under the action of external force, the ejector rod 7 simultaneously drives the first ejector tube 6 and the first ejector block 1, the second ejector tube 11 and the second ejector block 8 to move downward.

[0027] The upper die assembly also includes an upper die 12, and the lower die assembly also includes a lower die 13 and a stripper plate 14. The first receiving hole 3 and the second receiving hole 9 are disposed on the upper die 12. The stripper plate 14 is movably disposed on the inner hole of the lower die 13, and the stripper plate 14 is fitted around the outer periphery of the first punching block 2. When the upper die assembly A moves downward, the upper die 12 pushes the stripper plate 14 downward, thereby enabling the first punching block 2 to move upward by acting on the first stripper block 1, and the second punching block to move upward by acting on the second stripper block 8.

[0028] A first elastic element 15 is provided between the ejector plate 14 and the lower mold assembly B. The first elastic element 15 is a spring. When the ejector plate 14 moves downward, it compresses the first elastic element 15. When the upper mold assembly A moves upward and resets, the ejector plate 14 moves upward and resets under the elastic force of the first elastic element 15.

[0029] The upper die assembly A also includes an outer ejector plate 16, which is fitted around the outer periphery of the upper die cavity 12. When the upper die assembly A moves downward to the corresponding position, the outer ejector plate 16 abuts against the lower die cavity 13. At this time, the upper die assembly A continues to move downward, while the outer ejector plate 16 is restricted from moving. Therefore, the upper die assembly A moves downward relative to the outer ejector plate 16. The first ejector block 1 acts downward on the first punching block 2 to punch the shaft hole 5 of the workpiece 4. The second ejector block 8 acts downward on the second punching block to punch the ventilation hole 10 of the workpiece 4. The upper die cavity 12 acts downward on the ejector plate 14. When the workpiece 4 is punched, it is placed on the lower die cavity 13. When the upper die assembly A moves downward to the corresponding position, the outer ejector plate 16 abuts against the lower die cavity 13 through the workpiece 4, so that the workpiece 4 is pressed between the outer ejector plate 16 and the lower die cavity 13.

[0030] A second elastic element 17 is provided between the outer ejector plate 16 and the upper mold assembly A. The second elastic element 17 is a spring. When the upper mold assembly A moves downward relative to the outer ejector plate 16 (that is, when the outer ejector plate 16 moves upward relative to the upper mold assembly A), the second elastic element 17 is compressed. When the upper mold assembly A moves upward and resets, the outer ejector plate 16 moves downward relative to the upper mold assembly A and resets under the elastic force of the second elastic element 17.

[0031] The upper mold assembly A has a movable cavity 18, and the bottom of the push rod 7 has a push part 19. The push part 19 is movably and limitedly located in the movable cavity 18. The push part 19 is connected to the upper end of the first push tube 6 and the upper end of the second push tube 11 respectively.

[0032] The upper mold assembly A also includes an upper mold base 20, an upper mold tightening plate 21, and an upper mold fixing plate 22. The upper mold tightening plate 21 and the upper mold fixing plate 22 are mounted on the upper mold base 20. The upper die 12 is mounted on the upper mold tightening plate 21. The second elastic element 17 is disposed between the upper mold fixing plate 22 and the outer ejector plate 16. The upper mold tightening plate 21 and the upper mold fixing plate 22 are provided with a first movable hole. The first push tube 6 is movably disposed on the first movable hole. The upper mold tightening plate 21 and the upper mold fixing plate 22 are provided with a second movable hole. The second push tube 11 is movably disposed on the second movable hole. The movable cavity 18 is disposed on the upper mold base 20.

[0033] The lower die assembly B also includes a lower die holder 23 and a lower die fixing plate 24. The lower die fixing plate 24 is mounted on the lower die holder 23. The lower die 13, the first punching block 2 and the second punching block are mounted on the lower die fixing plate 24. The first elastic element 15 is disposed between the ejector plate 14 and the lower die fixing plate 24.

[0034] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotor lamination stamping die, comprising an upper die assembly (A) and a lower die assembly (B), characterized in that: The upper die assembly (A) includes an upper die cavity assembly and a pusher assembly, and the lower die assembly (B) includes a lower die cavity assembly. The upper die cavity assembly is provided with a receiving part for accommodating waste material. The pusher assembly is movably mounted on the upper die assembly (A). When the upper die cavity assembly and the lower die cavity assembly interact, they push the pusher assembly to move upward, and the waste material enters the receiving part. When the upper die assembly (A) moves upward, the pusher assembly moves downward under the action of external force to push the waste material out of the receiving part.

2. The rotor lamination stamping die according to claim 1, characterized in that: The upper die assembly includes a first ejector block (1), the lower die assembly includes a first punching block (2), and the receiving part includes a first receiving hole (3) provided on the upper die assembly. The first ejector block (1) is movably disposed on the first receiving hole (3). When the upper die assembly (A) moves downward, the first ejector block (1) interacts with the first punching block (2) to punch the workpiece (4) out of the shaft hole (5). Under the action of the first punching block (2), the first ejector block (1) moves upward and retracts into the first receiving hole (3) so that the waste material enters the first receiving hole (3).

3. The rotor lamination stamping die according to claim 2, characterized in that: The ejector assembly includes a first ejector tube (6) and an ejector rod (7) that are movably mounted on the upper mold assembly (A). One end of the first ejector tube (6) is connected to the first ejector block (1), and the other end is connected to the ejector rod (7). When the first ejector block (1) moves upward, it pushes the ejector rod (7) upward through the first ejector tube (6). When the upper mold assembly (A) moves upward, the ejector rod (7) moves downward relative to the upper mold assembly (A) under the action of external force, so as to drive the first ejector tube (6) and the first ejector block (1) to move downward. The first ejector block (1) pushes the waste material out of the first receiving hole (3).

4. The rotor lamination stamping die according to claim 3, characterized in that: The upper die assembly also includes a second ejector block (8), the lower die assembly also includes a second punching block, and the receiving part also includes a second receiving hole (9) provided on the upper die assembly. The second ejector block (8) is movably disposed on the second receiving hole (9). When the upper die assembly (A) moves downward, the second ejector block (8) interacts with the second punching block to punch out the ventilation hole (10) of the workpiece (4). Under the action of the second punching block, the second ejector block (8) moves upward and retracts into the second receiving hole (9) so that the waste material enters the second receiving hole (9).

5. The rotor lamination stamping die according to claim 4, characterized in that: The ejector assembly also includes a second ejector tube (11), one end of which is connected to the second ejector block (8) and the other end is connected to the ejector rod (7). When the second ejector block (8) moves upward, it pushes the ejector rod (7) upward through the second ejector tube (11). When the upper mold assembly (A) moves upward, the ejector rod (7) moves downward relative to the upper mold assembly (A) under the action of external force, so as to drive the second ejector tube (11) and the second ejector block (8) to move downward. The second ejector block (8) pushes the waste material out of the second receiving hole (9).

6. The rotor lamination stamping die according to claim 5, characterized in that: The upper die assembly also includes an upper die (12), and the lower die assembly also includes a lower die (13) and a stripper plate (14). The first receiving hole (3) and the second receiving hole (9) are disposed on the upper die (12), and the stripper plate (14) is disposed on the lower die (13) with vertical movement. The stripper plate (14) is fitted around the outer periphery of the first punching block (2). When the upper die assembly (A) moves downward, the upper die (12) pushes the stripper plate (14) to move downward.

7. The rotor lamination stamping die according to claim 6, characterized in that: A first elastic element (15) is provided between the ejector plate (14) and the lower mold assembly (B). When the ejector plate (14) moves downward, it compresses the first elastic element (15). When the upper mold assembly (A) moves upward, the ejector plate (14) moves upward and resets under the elastic force of the first elastic element (15).

8. The rotor lamination stamping die according to claim 7, characterized in that: The upper die assembly (A) also includes an outer ejector plate (16), which is fitted around the outer periphery of the upper die (12). When the upper die assembly (A) moves downward to the corresponding position, the outer ejector plate (16) abuts against the lower die (13). The first ejector block (1) acts downward on the first punching block (2). The upper die assembly (A) moves downward relative to the outer ejector plate (16). The second ejector block (8) acts downward on the second punching block. The upper die (12) acts downward on the ejector plate (14).

9. The rotor lamination stamping die according to claim 8, characterized in that: A second elastic element (17) is provided between the outer ejector plate (16) and the upper mold assembly (A). When the upper mold assembly (A) moves downward relative to the outer ejector plate (16), it compresses the second elastic element (17). When the upper mold assembly (A) moves upward, the outer ejector plate (16) moves downward relative to the upper mold assembly (A) and resets under the elastic force of the second elastic element (17).

10. The rotor lamination stamping die according to claim 5, characterized in that: The upper mold assembly (A) is provided with a movable cavity (18), and the bottom of the push rod (7) is provided with a push part (19), which is limited and movable in the movable cavity (18).

Images