Parallel-series principle milling vehicle combined numerically controlled machine

A composite CNC machine tool and hybrid technology, applied in metal processing machinery parts, other manufacturing equipment/tools, large fixed members, etc., can solve the problems of weakened rigidity, increased machine tool weight, large machine tool stroke, etc., to expand the size of turning processing range, the effect of improving the Z-direction motion characteristics

Inactive Publication Date: 2008-10-08
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stroke of the machine tool is large, which not only requires a large size of the feed element, but also often brings disadvantages such as increased weight of the machine tool and weakened rigidity.

Method used

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  • Parallel-series principle milling vehicle combined numerically controlled machine
  • Parallel-series principle milling vehicle combined numerically controlled machine
  • Parallel-series principle milling vehicle combined numerically controlled machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The overall structure of an embodiment of the composite CNC machine tool of the present invention is as follows: figure 1 shown. The machine tool consists of a three-axis mixed milling spindle head 1, a bed 2, an indexing turntable 3, an X-axis assembly 4, a C-axis rotary table assembly 5 and a column 8. Y of the moving pair of the two-axis parallel mechanism in the three-axis hybrid milling spindle head 1 1 , Y 2 Movement, the X-direction movement of the X-axis assembly 4 and the Z-direction movement of the W-axis are driven by a servo motor through a ball screw pair.

Embodiment 2

[0037] Similar to the implementation method of Embodiment 1, the difference is that the Y of the moving pair of the two-axis parallel mechanism is 1 , Y 2 The movement and X-direction movement of the X-axis assembly 4 is directly driven by a linear motor to meet the needs of high-precision and high-speed machining. In addition, a standard floor-mounted tool magazine is also configured to meet the needs of quick tool change.

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PUM

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Abstract

The invention discloses a milling vehicle composite numeral control machine based on the principle of parallel series, which comprises a lathe bed. A column and an indexing table are respectively arranged on the lathe bed and a triaxial parallel series milling spindle head is arranged horizontally along the direction of the Y axis on one side wall of the column; a W shaft component which can move along the Z direction is arranged on the side wall of the column close to the indexing table and a turning head is arranged on the W shaft component; an X axis component which is eccentrically arranged is arranged on the indexing table and the upper side of the X axis component is connected with a rotary table of a C shaft by a guide pair. The composite numeral control machine of the invention can realize the functions of the 5-axis CNC milling machining, high-speed milling vehicle machining of the complex rotary moulding surface by four-axis simultaneous motion and milling machining by three-axis spontaneous motion, and the function of enlarging the range of machining dimension by using small stroke to process large workpieces.

Description

technical field [0001] The invention relates to a numerically controlled cutting machine tool, in particular to a hybrid-principle milling-turning compound numerically controlled machine tool that combines series and parallel. Background technique [0002] The traditional machine tool is based on the principle of complete series connection, and its advantages are that the working space is large; the machine tool movement algorithm is simple. The disadvantage is that the motion errors of each axis are accumulated; the rigidity of the cantilever structure is weak; the motion mass is large, and the feed rate cannot be too high. In recent years, the United States first introduced a six-axis fully parallel principle machine tool (also known as a virtual axis machine tool or a hexapod parallel machine tool). The disadvantage is that the working space is small; the motion algorithm is complex. Since the advantages and disadvantages of CNC machine tools based on the complete serie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/02B23Q1/25B23Q1/48
Inventor 黄玉美陈纯高峰申东侯敏
Owner XIAN UNIV OF TECH
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