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Multi-shaft linkage series-parallel machine tool

A multi-axis linkage, machine tool technology, applied in metal processing mechanical parts, large fixed members, metal processing and other directions, can solve problems such as small workspace, complex CNC programming, and strong motion coupling

Inactive Publication Date: 2010-06-02
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, parallel machine tools also have their inherent defects, especially 6-DOF parallel machine tools, which have strong kinematic coupling, small working space, and complex NC programming, which restrict the popularization and application of parallel machine tools to a large extent.

Method used

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  • Multi-shaft linkage series-parallel machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The structure of this embodiment 1, such as figure 1 As shown, it includes a bed 1, a movable platform 18 on which a spindle 17 is installed, a worktable on which a workpiece 4 is installed, and three uprights 6, 10, and 13 arranged on the bed. The three uprights are arranged in a triangular shape, and the upright guide rails are all arranged There are sliding saddles 7, 11, and 15 for linear motion. The three sliding saddles are respectively driven by ball screws by servo motors 8, 9, 14 installed in the columns; the machine tool is characterized in that the movable platform 18 The three branch chains 5, 12, and 16 are respectively connected with the saddles 7, 11, and 15 to form a spatial parallel closed chain mechanism. The spatial parallel closed chain mechanism can be used by the inventor in the application number 2007100623054.2, named "Sports The various structures disclosed in the “decoupled spatial three-degree-of-freedom parallel mechanism” patent application, t...

Embodiment 2

[0017] The structure of this embodiment 2, such as figure 2 As shown, the difference between the machine tool and Embodiment 1 is that the worktable is composed of a platform 23 that rotates around the y direction and a platform 39 that moves along the y direction. The platforms 23, 39 are driven by servo motors 22, 40, respectively. .

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Abstract

The invention relates to a multiple spindle linkage series and parallel machine tool, which belongs to the production field of a numerical control machine. The machine tool mainly comprises a bed piece, a moveable platform for arranging a basic shaft, an operation platform for arranging a cut workpiece and three upright posts arranged on the bed piece; the three upright posts are distributed in atriangle shape; the guide rail of each upright post is provided with a saddle in a straight-line motion; the moveable platform is connected with the three saddles through three branched chains to forma space parallel closed chain apparatus; the space parallel closed chain apparatus is used for realizing two-dimensional motion and one-dimensional rotation motion freedom; the operation platform forarranging the cut workpiece is used for realizing one-dimensional motion and one-dimensional rotation motion freedom; the operation platform and the space parallel closed chain apparatus are used forrealizing the gang control of five shafts. The multiple spindle linkage series and parallel machine tool has the advantages of simple structure, reasonable distribution, flexible and easy-control processing, large operation space, high processing precision, and realization of vertical and horizontal purposes; combined with the predominance of the serial-type and the parallel-type machine tools, the machine tool can be used for multiple spindle linkage numerical control processing of complex curved-type parts.

Description

Technical field [0001] The invention belongs to the field of numerical control machine tool manufacturing, and relates to a multi-axis linkage hybrid machine tool capable of performing multi-axis linkage numerical control processing of complex curved surface parts. Background technique [0002] In the field of CNC machine tool manufacturing, the mechanical structure of traditional CNC machine tools mostly adopts a series connection mode, which makes the machine tool prone to error accumulation, the overall rigidity is not high, and the machining accuracy is low. In the 1990s, the birth of parallel machine tools made people see the hope of CNC machine tools. Parallel machine tools have the advantages of simple structure, high rigidity, error-free accumulation, low mass of moving parts, and easy realization of high-speed motion, which to a certain extent makes up for the shortcomings of traditional CNC machine tools. However, the parallel machine tool also has its inherent defects...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/01B23Q1/25B23Q5/00
Inventor 刘辛军汪劲松吴超
Owner TSINGHUA UNIV
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