Alternating current servo drive fine blanking machine

A technology of AC servo and fine blanking machine, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of reducing fine blanking processing efficiency and affecting processing accuracy, and achieve the effect of improving processing accuracy and production efficiency

Inactive Publication Date: 2015-11-18
WUHAN RIVET MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the constant blanking speed of the traditional fine blanking machine, in the process of fine blanking of composite material parts, on t

Method used

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  • Alternating current servo drive fine blanking machine

Examples

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Effect test

Embodiment 1

[0017] During the fine blanking of the 45# steel plate with a thickness of 12mm, if the traditional constant blanking speed processing method is used, the steel plate will tear. The AC servo-driven fine blanking machine of the present invention passes through the grating fixed on the worktable. Ruler, monitors and feedbacks the position information of the worktable, when the displacement of the worktable is less than 8mm, the servo motor controller controls the speed of the AC servo motor and then controls the flow of the oil pump, and controls the punching speed to 20mm / s; When the moving displacement is 8mm, the position sensor will feedback its position signal to the servo motor controller. At the same time, the servo motor controller will output the signal corresponding to the fine blanking speed of the position, and finally control the speed of the AC servo motor. The punching speed is 5mm / s, until finishing the subsequent 4mm fine-blanking. By changing the fine-blanking s...

Embodiment 2

[0019] In the fine blanking process of the composite material of 45# steel with a thickness of 6mm and bronze with a thickness of 2mm, due to the different hardness of 45# steel and bronze, different punching speeds are required. The AC servo-driven fine blanking machine of the present invention The position information of the worktable is monitored and fed back by the grating ruler fixed on the worktable. When the upward displacement of the worktable is 0-2mm, that is, when the bronze plate is processed, the servo motor controller controls the speed of the AC servo motor and then controls the oil pump Control the punching speed of the fine-blanking machine to 30mm / s. When the worktable’s rising displacement is 2-8mm, that is, when processing the 45# steel plate part, control the punching speed of the worktable to 15mm / s, It greatly improves the machining accuracy of the traditional constant-speed fine blanking of composite materials, and at the same time improves the production...

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Abstract

The invention discloses an alternating current servo drive fine blanking machine. The alternating current servo drive fine blanking machine comprises a master cylinder, a workbench, a directional valve control system and a pump control system. A piston rod on the master cylinder is connected with the workbench. The directional valve control system and the pump control system are connected with the master cylinder. A position sensor used for detecting the position of the workbench in the perpendicular direction is arranged on the workbench. Position signals detected by the position sensor are transmitted to a servo motor controller in the pump control system. The servo motor controller transmits fine blanking speed signals corresponding to the position signals to an alternating current servo motor in the pump control system, and finally the operation speed of the piston rod on the master cylinder is controlled. With the alternating current servo drive fine blanking machine, the current situation that because the fine blanking speed of a traditional fine blanking machine is constant, the request for fine blanking machining on thick plates and composite materials cannot be met is changed, the speed of fine blanking is controlled in real time according to the position changes of the workbench, and therefore production efficiency and machining accuracy are improved.

Description

Technical field [0001] The invention relates to a fine blanking machine, in particular to an AC servo-driven fine blanking machine. Background technique [0002] Fine blanking is an advanced processing technology. Fine blanking machines are currently widely used in the processing of mechanical products and parts in the automotive, aviation, military, textile and hardware fields. With the increasing number of thick plate materials and composite material fine-blanking parts, the traditional fine-blanking machine cannot meet the requirements of the fine-blanking process of thick plate materials and composite materials due to the constant blanking speed. In the fine blanking process of thick plate materials, the constant blanking speed will cause the thick plate fine blanking parts to tear, and it is easy to damage the fine blanking die. In the fine blanking process of composite materials, different materials have different hardnesses, so different blanking speeds are required. Due...

Claims

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Application Information

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IPC IPC(8): B21D28/02B21D28/20B21C51/00
Inventor 唐千否栗新华胡勇
Owner WUHAN RIVET MACHINERY
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