Punching-preventing safety device for pneumatic-hydraulic punch

Abstract

The invention discloses a punching-preventing safety device for a pneumatic-hydraulic punch, which is arranged between an upper mould and a lower mould. The upper mould is fixed on a main punching shaft, while the lower mould is fixed on a punch operating platform. The device is provided with a starting detecting mechanism capable of detecting that the upper mould contacts a work piece arranged on the lower mould, an insulation detecting circuit capable of detecting the insulativity of the work piece, and a controller capable of controlling the punching of the pneumatic-hydraulic punch according to the starting detecting mechanism and the insulation detecting circuit. A pneumatic cylinder on the punch is started by the controller and stops punching when the starting detecting circuit detects that the upper mould contacts the work piece. An oil hydraulic cylinder on the punch is started to punch by the controller when the insulation detecting circuit detects that the work piece is an electrical conductor. The punching-preventing safety device for the pneumatic-hydraulic punch can effectively prevent the wrong punching of the punch, thereby preventing potential operation risk and improving the operation efficiency.

Description

technical field [0001] The invention belongs to a safety protection device for stamping processing equipment, in particular to a safety protection device for stamping equipment capable of protecting operators. Background technique [0002] The upper mold 1 on the stamping machine is fixed on the stamping spindle (such as figure 1 As shown), the stamping spindle is started by the stamping cylinder for stamping, and the workpiece 100 is placed on the lower die 2 on the press console 3. During the stamping process, the operator needs to operate the workpiece by hand. When some workpieces are very large, the operator can It is safer to operate by holding the side of the workpiece and away from the stamping direction of the stamping cylinder. However, some workpieces are small in size, and the operator needs to hold the workpiece with his hands and punch it on the console. The position of the hand and the punch is relatively close. Press the foot switch, the punch must be press...

AI Technical Summary

Problems solved by technology

However, some workpieces are small in size, and the operator needs to hold the workpiece with his hands and punch it on the console. The position of the hand and the punch is relatively close. Press the foot switch, the punch must be pressed down, causing personal injury

Analysis of the cause: the operator accidentally put his hand under the punch, and accidentally stepped on the foot switch, and the punch was pressed down, causing personal injury

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