Pressure-bearing electric cylinder used on punching equipment

Abstract

The invention relates to electric cylinders, in particular to a pressure-bearing electric cylinder used on punching equipment. The pressure-bearing electric cylinder comprises an electric cylinder base, a motor, a screw, a lifting rod and a lifting rod guide device, the output end of the motor is connected with the lower end of the screw, and the upper end of the screw is in spiral transmission connection with the lower end of the lifting rod. The pressure-bearing electric cylinder is characterized in that a screw pressure-bearing anti-rotation device is arranged between the lower end of the screw and the electric cylinder base and comprises a movable friction piece and a static friction piece, the movable friction piece is fixed on the screw, and the static friction piece is fixed on theelectric cylinder base. The pressure-bearing electric cylinder can realize quick feeding and can bear high pressure. Compared with the prior art, the pressure-bearing electric cylinder has the advantages of being high in working stability, low in manufacturing cost, long in service life and low in energy consumption, integrating functions and advantages of an air cylinder and an electric cylinderand simplifying a feeding mechanism of the punching equipment.

Description

technical field [0001] The invention relates to an electric cylinder, in particular to a pressure-bearing electric cylinder used in stamping equipment. Background technique [0002] In the traditional small stamping automatic equipment, in the stamping process, the workpiece is first sent to the designated station by the feeding mechanism, and then the mold with the workpiece is sent to the set position by the lifting mechanism before stamping. In the stamping process, because the lifting mechanism is subject to a large axial stamping force, in order to ensure that the workpiece has sufficient stamping force, a second set of mechanisms is required to maintain the pressure on the mold. [0003] A few years ago, SMC Corporation of Japan and Airtec Corporation of Taiwan introduced a locking cylinder for stamping automatic equipment that needs to be lifted to feed and bear pressure. The tight pin is ejected by the provided spring to pin the piston for pressure maintenance, but ...

AI Technical Summary

Problems solved by technology

[0003] A few years ago, SMC Corporation of Japan and Airtec Corporation of Taiwan introduced a locking cylinder for stamping automatic equipment that needs to be lifted to feed and bear pressure. The tight pin pops out through the set spring, and pins the piston to keep the pressure, but it often gets stuck when returning to its position

Not long ago, they made a technical improvement, adding a set of air source controller to the cylinder. When the cylinder returns to its position, the exhaust pipe is controlled by the air source controller to ensure that the cylinder does not exhaust gas at low pressure, and successfully solved the problem of the cylinder returning to its position. , but the return speed of the cylinder is reduced, and the locking pin affects the service life of the cylinder, so the locking cylinder is difficult to be widely used in the pressure-bearing field of the feeding mechanism of the stamping automatic equipment

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