Safe distance control device of punching equipment

Abstract

The invention discloses a safe distance control device of punching equipment, comprising a displacement sensor, a resistance cushioning detector switch and a central processing unit, wherein the displacement sensor is synchronous with the movement of a working piston rod and outputs the data of the distance between a top die and a lower die to the central processing unit; the resistance cushioning detector switch is used for judging whether an object exists between the top die and the lower die or not and generates a resistance signal output to the central processing unit; and the central processing unit has a teaching mode and a working mode. Under the teaching mode, when the resistance signal output by the resistance cushioning detector switch is detected, the central processing unit saves the distance between the top die and the lower die at the time as the safety distance and controls a working piston to return; and under the working mode, when the resistance signal output by the resistance cushioning detector switch is detected, the central processing unit judges whether the distance between the top die and the lower die at the time is larger than the saved safety distance ornot and controls the working piston to make movement according to judging results.

Description

technical field [0001] The invention relates to a safety control system device for stamping equipment, in particular to a safety control system device for small equipment such as an air-hydraulic booster cylinder, a pneumatic cylinder, and an oil pressure cylinder. Background technique [0002] At present, how to protect the personal safety of operators during the production and operation of various stamping equipment is the focus of attention of enterprises that manufacture and use stamping equipment. Large-scale stamping equipment basically has relatively reliable safety protection measures to protect personal safety and achieve the purpose of safe production; however, on small stamping equipment, due to the small stamping workpiece, especially when single-piece small batch production , some need to be punched directly by holding the workpiece, so the distance between the hand and the punch is extremely close, and some even rely on manual loading until the punch moves down...

AI Technical Summary

Problems solved by technology

[0006] 1. It is difficult to manually adjust the mechanical and electrical controls synchronously, the adjustment is labor-intensive and time-consuming, and it is difficult for the operator to grasp it and affect the operation efficiency;

[0007] 2. The setting of the safety distance needs to be adjusted each time according to the thickness of the processed workpiece, which is very inconvenient;

[0008] 3. The size adjustment result of the safety distance depends on the operation skills, so the deviation is relatively large, and there will be misjudgment and hidden troubles;

[0009] 4. The safety distance set by the proximity switch can only be the input / output of the on and off induction signals, and cannot be used for memory storage, data programming and automatic setting adjustment through the central processing unit;

[0010] 5. The safety distance after manual adjustment can only be adapted to large-scale production, not suitable for variable small-batch production

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