Precise edge cutting die for motor shell

Abstract

The invention discloses a precise edge cutting die for a motor shell. A female die is fixed to the lower portion of an upper die seat. The male die is fixed to the upper portion of a lower die seat. Aguide mechanism is arranged vertically and is connected with an upper die and a lower die. A mold cavity is formed in the lower portion of the female die. A part pushing device is located in the moldcavity. An inner pressing assembly is installed on the upper portion of the upper die seat and achieves upward limiting. The lower portion of the inner pressing assembly is connected with the part pushing device and drives the part pushing device to move vertically. An outer pressing assembly penetrates in the upper die seat, the female die, the part pushing device to the mold cavity. The male die directly faces the mold cavity. The motor shell put on the male die upside down is toward the inside of the part pushing device. When the upper die and the lower die are combined, the lower bottom face of the part pushing device abuts against the plane waiting for edge cutting of the motor shell, and a punching gap is formed between the female die and the male die. The precise edge cutting die is high in locating precision, edge cutting uniformity and section consistency of the motor shell are ensured, the matched structure of the part pushing device, the motor shell and the female die moldcavity is adjusted, and applicability of the same upper die and lower die to edge cutting of different motor shells is achieved.

Description

technical field [0001] The invention relates to a trimming die for processing motor casings, in particular to a die with precise trimming effect. Background technique [0002] Conventional edge trimming dies used in motor casing processing, especially in deep drawing casing large trimming processing, usually have the following problems: [0003] 1. Due to the special requirements of the precision and structure of the motor shell product, the edge of the end face after deep drawing of the product needs to be cut off in a full circle. The large area of ​​the end face is punched. The cutting area is large and the effective removal of waste must be considered. In addition, the mold uses a manipulator Transfer continuous production, so basically only two guide posts on the mold can be designed and the diameter should not be too large; [0004] 2. Since the motor shell product adopts the forward stretching process, the drawn plane has been drawn many times, and the edge of the en...

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide a precision edge-cutting mold for motor casings, which solves the problems of punching uniformity of the large-area end face of the deep-drawn casing, the contour of the trimming size, and the precise positioning of the convex and concave molds of the mold

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