Platform of principal axis with paralleled Z, A two degrees of freedom driven by linear motor

A linear motor, degree of freedom technology, used in metal processing machinery parts, large fixed members, metal processing equipment and other directions, can solve the problems of singular motion interference, small working space, etc., to achieve high motion speed, fast feed speed, deflection wide range of effects

Inactive Publication Date: 2007-12-26
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional machine tools, parallel machine tools have many advantages such as simple structure, high rigidity, strong bearing capacity, and good dynamic characteristics, but there are also disadvantages such as small working space, motion interference and singularity in the working space.

Method used

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  • Platform of principal axis with paralleled Z, A two degrees of freedom driven by linear motor
  • Platform of principal axis with paralleled Z, A two degrees of freedom driven by linear motor
  • Platform of principal axis with paralleled Z, A two degrees of freedom driven by linear motor

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] A Z-A two-degree-of-freedom parallel spindle platform driven by a linear motor of the present invention includes: a static platform 1, a column 2, a linear motor mover 3, a linear motor stator 4, a self-locking device, two moving subassemblies, and two rotating Subassembly A 12, two connecting rod assemblies 13, telescopic rod 14, U-shaped shift fork 15, three rotating subassembly B 16, moving platform assembly 17 and main shaft assembly 18;

[0031] As shown in Figure 1, two U-shaped groove-shaped columns 2 are distributed in parallel and opposed to each other, and are respectively fixed to the static platform 1 through screw connections. The linear motor stator 4 is respectively fixed in the U-shaped grooves in the column 2 with screws. The friction column 8 is also connected with the static platform 1 by screws, and fixed at the position shown in FI...

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Abstract

The invention relates to a Z-A two degree of freedom parallel main shaft platform driving by linear motor. It includes static platform, vertical shaft, linear motor stator and mover, self locking device, moving fit device, rotating fit assembly A, B, connecting rod assembly, expansion link component, moving platform component and main shaft component. The static platform has plane shaped, and vertical shaft is slot shaped. Linear motor stator is set on vertical shaft and mover is connected to moving fit device. The self locking device has cylinder, cylinder base, friction plate, and friction column. The moving fit component has linear guide rail, slider and moving base. Rotating fit assembly is rotating component. Connecting rod assembly has V shape, and expansion link component has expansion link and U shaped shifter. Moving platform component has geometric symmetry polygon. The connecting relationship is that: vertical shaft connects to static platform; moving fit component is located on vertical shaft; connecting rod assembly connects to moving fit device and moving platform through rotating fit assembly A and B; one end of expansion link connects to static platform and the other end connects to moving platform assembly. The main shaft section is set on moving platform assembly.

Description

(1) Technical field: [0001] The invention relates to a Z-A two-degree-of-freedom parallel spindle platform driven by a linear motor used in a parallel machine tool, which belongs to mechanical engineering. (two) background technology: [0002] Parallel machine tool, also known as virtual (virtual) axis machine tool, is a new type of CNC processing equipment that came out in the mid-1990s. Since the first complete six-degree-of-freedom parallel machine tool was launched in the United States, various countries have successively launched various prototypes of parallel machine tools. Since multi-degree-of-freedom parallel machine tools have many shortcomings such as complex kinematic modeling, kinematic coupling and low machining accuracy, and in many cases, users do not need six-degree-of-freedom machine tools, and less than six degrees of freedom can meet actual processing requirements. Therefore, the parallel machine tool with few degrees of freedom has become the research h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/48B23Q1/26
Inventor 刘强陈静陈华伟袁松梅
Owner BEIHANG UNIV
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