Three-phase asynchronous motor end cover hole punching device

Abstract

The invention discloses a three-phase asynchronous motor end cover hole punching device, which comprises a base, a telescopic cavity, a telescopic column, a fixed seat and a motor. Rotation of a tiller is operated manually, mutual clamping between a gear and a tooth is combined, a bit is thus controlled to move downwardly, and hole punching operation is then carried out on the end cover in a groove; when the end cover is not in the middle or not firmly fixed, the manual operation of rotating the tiller is not required, after the end cover is adjusted to a proper position or is firmly fixed, the bit is then controlled to move downwardly, the tiller is rotated slowly, the hole punching speed can be controlled, and the hole punching finished product is thus improved; the bottom part of the telescopic cavity is provided with a rotating seat, when the end cover needs to be placed, a front-end support can be pushed towards the right, the bit, the motor and the like can rotate for 90 DEG towards the right with the telescopic cavity as a circle center, placing of the end cover can be prevented from being blocked, the front-end support is rotated back after placing, hole punching can be carried out on the end cover, and the hole punching operation process is better facilitated.

Description

technical field [0001] The invention belongs to the technical field of motor processing equipment, and in particular relates to a three-phase asynchronous motor end cover punching device. Background technique [0002] Three-phase asynchronous motor is a kind of induction motor. It is a type of motor powered by simultaneous access to 380V three-phase AC power supply (phase difference 120 degrees). Since the rotor and stator of the three-phase asynchronous motor rotate in the same direction and different The rotational speed becomes rotation, and there is a slip, so it is called a three-phase asynchronous motor. After the stator is fed with current, part of the magnetic flux passes through the short-circuit ring and induces current in it. The current in the short-circuit ring hinders the change of the magnetic flux, resulting in a phase difference between the magnetic flux generated by the part with the short-circuit ring and the part without the short-circuit ring, thereby f...

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Problems solved by technology

[0003] The prior art three-phase asynchronous motor end cap punching device has the following problems: 1. Most of the existing punching devices use electric telescopic rods to control the up and down movement of the drill bit, thereby punching the end cap. When the cover is put into the groove, it may not be able to fix the end cover well in the groove due to the difference in the specifications of the end cover. The cover cannot be used, which wastes materials; 2. The existing punching devices are all fixed and cannot be rotated. When the end cover is placed in the placement groove, the distance between the drill bit and the placement groove is relatively close, which may hinder the opening of the end cap. Put it in, so that it is not possible to punch holes on the end cap conveniently and quickly

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