Single-cylinder reset stripping device of press machine for sheet stamping

Abstract

The invention relates to the technical field of press machines, in particular to a single-cylinder reset stripping device of a press machine for sheet stamping. The device comprises a cylinder body, a piston and a cylinder seat, wherein the lower side of the piston is integrally connected with a piston rod, and the device is characterized in that a first inner step for limiting the upper limit position of the piston is arranged in the cylinder body, an oil inlet / outlet is formed in the upper side of the first inner step, a spacer bush is arranged between the cylinder body and the piston rod, a plurality of reset cavities are formed in the circumferential direction of the spacer bush, reset springs are arranged in the reset cavities, the lower end of the spacer bush abuts against the cylinder seat, a second inner step is arranged at the position, corresponding to the upper end of the spacer bush, in the cylinder body, the upper end of the spacer bush abuts against the second inner step, a reset space is formed between the upper end of the spacer bush and the piston, and the upper sides of the reset springs elastically abut against the lower side of the piston. According to the single-cylinder reset stripping device, the cylinder body structure is simple and compact, sealing parts in the cylinder body structure are reduced, and the maintenance probability is reduced.

Description

technical field [0001] The invention relates to the technical field of presses, in particular to a press single-cylinder resetting and stripping device for sheet stamping. Background technique [0002] In the prior art, the stripping system used for stamping equipment of thin plate parts is a double-acting cylinder stripping device such as figure 1 As shown, including the cylinder body, there is a piston in the cylinder body, the upper side of the piston is provided with an upper oil inlet and outlet, and the lower side is provided with a lower oil inlet and outlet. The upper oil inlet and outlet and the lower oil inlet and outlet are connected to the hydraulic system. The piston rod The end of the piston is connected to the stripping plate, and oil is supplied and returned to the upper and lower oil chambers of the piston through the hydraulic system to push the piston to move up and down, so as to realize the stripping and reset of the stamping die. This structure specifi...

AI Technical Summary

Problems solved by technology

This structure specifically has the following problems: 1. The double-acting cylinder needs to continuously replenish and drain oil from the upper and lower oil chambers, resulting in serious energy loss; 2. The oil temperature of the double-cylinder operation is relatively fast, increasing the load on the heat dissipation system

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