Electric punch

Abstract

The invention discloses an electric punching machine comprising a motor and a rotating wheel connected with the motor. The motor is connected with a rotating wheel. The rotating wheel and a flywheel are driven through a belt. The flywheel is connected with a crankshaft; a punch is arranged on the crankshaft; an upper die is disposed on the punch. The motor comprises a stator, a rotor and a spindle; one side of the rotor is rotatably connected to a support; the spindle is rotatably connected to the support and is coaxial with the rotor; the rotor is radially provided with a through hole; the spindle is radially provided with a groove; a pin is fitly inserted into the through hole and the groove; one end of the spindle is provided with a rocking handle. When the electric punching machine is driven electrically, the pin is inserted into the through hole and the groove to fixedly connect the rotor and the spindle, the rotor is electrified and drives the spindle to rotate, and punching is performed; when power is off, great electromagnetic resistance is generated when the spindle is directly rotated, the pin is removed to separate the spindle and the rotor, and the rocking handle is then rotated to drive the whole machine to perform punching.

Description

technical field [0001] The invention relates to an electric punching machine for punching holes, in particular to a punching machine capable of punching by hand when the power is cut off. Background technique [0002] Punch production is mainly for sheets. Through the die, blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting and extrusion parts can be made, which are widely used in various fields. [0003] The existing electric punch generally includes a motor, a rotating wheel is connected to the motor, the rotating wheel and the flywheel are driven by a belt, the flywheel is connected with a crankshaft, the crankshaft is provided with a punch, and the punch is provided with an upper Die, this kind of electric punching machine drives the flywheel to rotate through the motor when punching holes, so that the crankshaft drives the punch to move up and down to realize punching. In the field of punching plastic sheets, because the punching force...

AI Technical Summary

Problems solved by technology

[0003] Existing electric punch press generally comprises motor, is connected with running wheel on the motor, and described running wheel and flywheel are driven by belt, and described flywheel is connected with crankshaft, and described crankshaft is provided with punch, and described punch is provided with upper Die, when this kind of electric punching machine is punching, the flywheel is driven by the motor to rotate, so that the crankshaft drives the punch to move up and down to realize punching. In the field of punching holes in plastic sheets, the punching force is not large, so manual operation can be used. Existing electric punching machines generally only have a single electric operation, and it is not convenient to use a motor to drive the punching machine in case of a power failure or when punching a sample.

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