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Linear electric motor driven four-shaft linkage numerical control machine

A technology of linear motors and CNC machine tools, which is applied in the direction of drive devices, metal processing machinery parts, large fixed members, etc., can solve the problems of feed movement lag, affecting machining accuracy, and increasing inertial mass, etc., to achieve fast feed speed, The effect of simple and compact structure and large deflection range

Inactive Publication Date: 2008-12-10
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional "rotary servo motor + ball screw" drive system can achieve a maximum feed speed of 90-120 m / min, and a maximum acceleration of only 1.5 g; at the same time, due to the existence of couplings, A series of intermediate links such as screw, nut, bearing, etc. The elastic deformation, friction, backlash, etc. produced by these mechanical elements will cause the lag of feed movement and other nonlinear errors. These intermediate links also increase the inertial mass of the system ; In addition, the screw is a slender rod, under the action of force and heat, it will deform and affect the processing accuracy

Method used

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  • Linear electric motor driven four-shaft linkage numerical control machine
  • Linear electric motor driven four-shaft linkage numerical control machine
  • Linear electric motor driven four-shaft linkage numerical control machine

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Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0046] Such as figure 1 with 2 As shown, the four-axis linkage CNC machine tool driven by a linear motor according to the present invention is composed of a bed column 1, a bed base 2, a workbench mounting seat 3, an XY workbench module 4 and an asymmetrical parallel spindle module 5. .

[0047] The bed column 1 is an integral casting with mounting holes on its lower end surface; the bed base 2 is also an integral casting with bosses and mounting holes on it; the bed column 1 is fixed on the bed by bolts On the base 2, the end faces are placed flush with each other in an L-shaped structure; the parallel spindle head module 5 is vertically installed on the bed column 1 through the mounting hole on the side of the bed column 1 . The workbench mounting seat 3 is a cuboid intermediate connecting part, which is fixedly installed on the boss of the bed base 2 by...

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Abstract

The invention relates to a four-axis linkage numerical control machine tool driven by a linear motor, or provides a completely linear-motor-driven four-axis linkage numerical control machine tool that is simple and compact in structure and good in rigidity and can meet the high speed precision processing; the invention consists of a machine bed column, a machine bed base, a worktable arranging seat, an XY worktable module and asymmetrical parallel spindle modules; based on the modular design method, the invention divides the machine tool into two functional modules of the parallel spindle feeding module and the XY worktable module; the four-axis linkage numerical control machine tool driven by the linear motor has the advantages that the whole machine tool is simple and compact in structure, flexible in design, and is also provided with the good structural rigidity and a certain dynamic stiffness. The XY worktable module has the advantages of fast feeding speed, high precision and strong bearing capacity, etc. The two Z-A freedom parallel spindle modules have the advantages of fast feeding speed of a parallel mechanism, high stiffness and strong bearing capacity, meanwhile, the deflection range of the A axis is big, and the maximum deflection angle can reach 90 degrees, thus realizing the vertical-horizontal conversion processing of the spindle.

Description

(1) Technical field: [0001] The invention relates to a numerically controlled machine tool driven entirely by a linear motor, in particular to a numerically controlled machine tool capable of realizing four-axis linkage processing, and belongs to the technical field of numerically controlled machine tools. (two) background technology: [0002] Machine tools are the main machine of the manufacturing industry and the core equipment of the equipment manufacturing industry. The basic characteristics of the layout of traditional machine tools are bed, column, beam, etc. The principle is to form the machining surface trajectory of the tool head point. The traditional "rotary servo motor + ball screw" drive system can achieve a maximum feed speed of 90-120 m / min, and a maximum acceleration of only 1.5 g; at the same time, due to the existence of couplings, A series of intermediate links such as screw, nut, bearing, etc. The elastic deformation, friction, backlash, etc. produced b...

Claims

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Application Information

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IPC IPC(8): B23Q1/01B23Q1/30B23Q1/48B23Q5/02B23Q5/36
Inventor 刘强陈静袁松梅郇极
Owner BEIHANG UNIV
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