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A redundantly driven five-axis linkage hybrid machine tool

A redundant and bed technology, applied in the field of CNC machine tools, can solve problems such as strong motion coupling, complex CNC programming, and small working space, and achieve the effects of high rigidity, simple and compact structure, and good repeatability positioning accuracy

Active Publication Date: 2015-11-25
JIANGSU GUOWEI ENG MACHINERY CO LTD +1
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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 limitations, especially six-degree-of-freedom full parallel machine tools, which have strong kinematic coupling, small work space, complex kinematics, and complex NC programming, which limit the wide application of parallel machine tools.

Method used

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  • A redundantly driven five-axis linkage hybrid machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] The structure of a new type of redundantly driven five-axis linkage hybrid machine tool in this embodiment is as follows: figure 1 As shown, it includes a bed 11 and a column extension 15 fixed on the bed, a column extension 19, a column extension 110, a redundant slide table 17, a moving platform 114 for installing the main shaft, and a workbench 115 for installing the workpiece to be cut. The first, second, third and fourth branches between the moving platform 114 and the bed 11 and its column extension 15, column extension 19, and column extension 110, the first, second, third and first The four branch chains are respectively connected with the bed 11 and the column extension 15, the column extension 19, the column extension 110 and the moving platform 114 fixed on the bed to form a space parallel closed-loop mechanism. The bed 11 is connected by a rotary joint.

[0020] The first, second and third branch chains have the same structure and are all PSS type motion br...

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Abstract

The invention relates to a redundant driving five-axis linkage hybrid machine tool which comprises a tool body, a column extender fixed on the tool body, a movable platform for installing a spindle, a working table for installing a workpiece to be cut, a first branched chain, a second branched chain, a third branched chain and a fourth branched chain, wherein the first branched chain, the second branched chain, the third branched chain and the fourth branched chain are used for connecting the movable platform, the tool body and the column extender, and five-axis linkage control can be achieved. The redundant driving five-axis linkage hybrid machine tool has the advantages of being concise and compact in structure, relatively simple in kinematics, high in rigidity, good in repeated positioning accuracy, relatively large in working space and machine tool size ratio and the like.

Description

technical field [0001] The invention belongs to the field of numerical control machine tools, and in particular relates to a novel five-axis linkage redundant hybrid machine tool capable of performing multi-axis linkage numerical control machining on complex free-form surface parts. Background technique [0002] The mechanical structure of traditional CNC machine tools is mostly implemented in series. This series structure makes it easier to accumulate errors at the motion output end, the overall stiffness is not high, the motion inertia is large, and the dynamic response characteristics are poor. In contrast, the new machine tools based on parallel mechanisms that appeared in the 1990s have the advantages of compact structure, high rigidity, no error accumulation, small mass of moving parts, easy to achieve high-speed motion, and high dynamic response characteristics. To a certain extent, it makes up for the shortcomings of traditional CNC machine tools, caters to the needs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/44
Inventor 夏正江刘辛军谢福贵
Owner JIANGSU GUOWEI ENG MACHINERY CO LTD
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