All-electric servo numerical-control bending machine with upper die load monitoring and protecting device and method thereof

A load monitoring and protection device technology, applied in safety equipment, manufacturing tools, metal processing, etc., to achieve the effect of protecting safety

Active Publication Date: 2016-12-07
GUANGZHOU XINYUE CNC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem that the existing all-electric servo CNC bending machine cannot limit the output bending force of the upper die in the working ar

Method used

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  • All-electric servo numerical-control bending machine with upper die load monitoring and protecting device and method thereof
  • All-electric servo numerical-control bending machine with upper die load monitoring and protecting device and method thereof
  • All-electric servo numerical-control bending machine with upper die load monitoring and protecting device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] Example one

[0056] Such as image 3 As shown, A is a normal bending condition, and B is an abnormal bending condition; among them, the upper mold 100 is a normal upper mold, and the upper mold 200 is a wrong upper mold installed by mistake. The upper mold 200 is 10mm longer than the upper mold 100 in height. ; Set the working distance to 15mm; then set the upper die load value required in the fast forward zone to 3 tons force, and then set the upper die load value required to bend the workpiece 300 in the work forward zone to 10 tons force; the upper die load abnormality judgment condition In the fast forward zone, the current feedback actual die load value exceeds the preset upper die load value by more than 5 tons.

[0057] A is under normal bending conditions. After the upper die 100 enters the work-in area from the fast-forward zone, the speed gradually decreases and enters the workpiece bending process. B is an abnormal bending condition. Since the upper die 200 is 1...

Example Embodiment

[0058] Example two

[0059] Such as image 3 As shown, A is a normal bending condition, and B is an abnormal bending condition; among them, the upper mold 100 is a normal upper mold, and the upper mold 200 is a wrong upper mold installed by mistake. The upper mold 200 is 10mm longer than the upper mold 100 in height. ; Set the working distance to 15mm; then set the upper die load required for the fast forward zone to be 3 tons of force, and then set the upper die load required for bending the workpiece in the work forward zone to be 5 tons of force; the upper die load abnormality judgment condition is fast The current feedback of the entry zone actually exceeds the preset upper die load value by more than 5 tons.

[0060] B is an abnormal bending condition. Since the upper die 200 is 10mm longer than the upper die 100 in height, the upper die 200 bends the workpiece 300 in advance in the fast forward zone. At this time, the servo drive detects that the actual die load has reached...

Example Embodiment

[0061] Example three

[0062] Such as Figure 4 As shown, A is the normal bending condition, and B is the abnormal bending condition; the upper die 101 is a normal upper die, and the upper die 201 is an incorrect upper die installed by mistake; suppose the upper die 201 is 20mm longer than the effective vertical dimension of the upper die 101 , Set the working distance to 15mm, that is, the upper die 201, the workpiece 301 and the lower die 401 have been completely crushed in the fast-forward zone; set the upper die load value required in the fast-forward zone to 3 tons force, and then set the working-in zone The upper die load value required to bend the workpiece 301 is 5 tons force; the upper die load abnormality judgment condition is that the current feedback actual die load value in the fast forward zone exceeds the preset upper die load value by more than 5 tons, then the bending in the second embodiment Judgment of abnormal bending is a failure condition.

[0063] Then in th...

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Abstract

The invention discloses an all-electric servo numerical-control bending machine with an upper die load monitoring and protecting device. A rapid feeding area and a work feeding area are included. The bending machine comprises a machine frame body, a numerical-control system, a servo system, a speed reducer, a synchronous wheel mechanism, a ball screw, a sliding block, an upper die, a lower die and a displacement sensor. The displacement sensor is arranged on one side of the sliding block and used for measuring the actual positions of the sliding block and/or the upper die. The all-electric servo numerical-control bending machine with the upper die load monitoring and protecting device has the beneficial effects that the defects that according to an existing all-electric servo numerical-control bending machine, the output bending force of an upper die cannot be limited in the work feeding area, the stress and movement conditions of the upper die cannot be monitored in the rapid feeding area, and stopping and alarming cannot be achieved under the condition that the upper die operates abnormally are overcome.

Description

technical field [0001] The invention relates to the technical field of numerical control bending machines, in particular to an all-electric servo numerical control bending machine with an upper die load monitoring and protection device, and a method for monitoring and protecting the upper die load of the bending machine. Background technique [0002] The main difference between the all-electric servo CNC bending machine and the general hydraulic CNC bending machine is that all motion axes are controlled by components such as electric servo motors and rolling screws, the hydraulic system is cancelled, and hydraulic oil is not used. [0003] At present, all-electric servo CNC bending machines on the market cannot limit the output bending force of the upper die in the work-in area and cannot monitor the force and movement of the upper die in the fast-forward area, and cannot protect the upper and lower dies. [0004] Specifically, the downward bending process is divided into a ...

Claims

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Application Information

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IPC IPC(8): B21D55/00B21D5/06B21C51/00
CPCB21C51/00B21D5/004B21D5/06B21D55/00
Inventor 沈烈
Owner GUANGZHOU XINYUE CNC CO LTD
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