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Numerical control method for accurate striking of screw press

A screw press, precise technology, applied in the direction of presses, stamping machines, manufacturing tools, etc., can solve the problem that the striking energy cannot be controlled digitally, and achieve the effect of improving the quality and consistency of the workpiece, improving the life of the mold, and improving the striking accuracy

Inactive Publication Date: 2009-07-08
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the friction screw press is commonly used in production. Due to manual operation, its striking energy cannot be digitally controlled.
The invention patent with the patent number 200510104599.4 invented the numerical control method of screw press transmission. The screw and slider are driven by the switched reluctance motor through deceleration, so that the screw press can realize the digital control of slider displacement and speed, and the impact energy can be controlled. But it doesn't touch on how to control the accuracy of the strike energy

Method used

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  • Numerical control method for accurate striking of screw press
  • Numerical control method for accurate striking of screw press
  • Numerical control method for accurate striking of screw press

Examples

Experimental program
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing:

[0014] The screw press includes a fuselage 20, a brake 21, a workbench 22 installed at the bottom of the fuselage 20, a beam 15 installed on the top of the fuselage 20, a steel sleeve 12 with bearings installed on the beam 15, and a steel sleeve 12 fixedly installed in the steel sleeve 12. The nut 11 at the lower end and the flywheel 8 fixedly installed on the outer upper end of the steel sleeve 12, the flywheel 8 is connected with the driving wheel 7 installed on the output shaft of the switched reluctance motor 6 through the belt 9, the screw rod 10 passes through the steel sleeve 12 and connects with the nut 11 threaded connection, the lower end of the screw rod 10 is provided with a slide block 14, and the workbench is provided with a through step hole 23 corresponding to the directly below the slide block 14, and the ejector rod 17 is installed in the step hole 23 with ...

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PUM

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Abstract

The invention provides a precision strike digital control method for a spindle press. The method is characterized by comprising the following steps: 1, inputting equipment data and operation data; 2, calculating the rotating speed omega of a switch reluctance machine and the rotating speed accuracy delta omega needed by an electric motor controller according to the formula: E=1 / eta(Wd+(F / 2C)), delta E=(F / eta C)delta F, omega=square root 2E / (J1+J2 / i) and delta omega=(delta E / (J1+J2 / i)omega) so as to control the action of the switch reluctance machine; and 3, driving a spindle press to act by the switch reluctance machine. The rotating speed omega and the rotating speed accuracy delta omega of a driving motor of the spindle press are directly controlled by the equipment data and the operation data, thereby effectively improving the strike precision of the spindle press, improving the quality and the consistence of workpieces, and prolonging the service life of a die.

Description

technical field [0001] The invention provides a numerical control method for precise striking of a screw press, which belongs to the field of mechanical industrial equipment. Background technique [0002] The screw press is a blow energy controlled material forming equipment. At present, the friction screw press is commonly used in production. Due to manual operation, its striking energy cannot be controlled digitally. The invention patent with the patent number 200510104599.4 invented the numerical control method of screw press transmission. The screw and slider are driven by the switched reluctance motor through deceleration, so that the screw press can realize the digital control of slider displacement and speed, and the impact energy can be controlled. But it doesn't involve how to control the precision of striking energy. Contents of the invention [0003] The purpose of the present invention is to provide a numerical control method for precise striking of a screw p...

Claims

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Application Information

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IPC IPC(8): B30B15/26B30B1/18
Inventor 赵婷婷杨思一
Owner SHANDONG UNIV OF TECH
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