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Five freedom-degree parallel lathe

A degree of freedom and parallel technology, applied in the field of machine tools, can solve the problems of large inertia, poor processing and assembly process, etc., and achieve the effect of small inertia, decoupling of assembly position and posture, and reduce quality

Inactive Publication Date: 2009-04-29
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the servo motor is directly installed on each motion branch chain, resulting in large inertia when the motion components move. In terms of structure, since each active motion branch chain is distributed in five positions in space, its processing and assembly process is poor.

Method used

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  • Five freedom-degree parallel lathe
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Experimental program
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Embodiment Construction

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] The five-degree-of-freedom parallel machine tool includes a base 1 and a worktable 4. The base 1 is provided with a bracket 11 for installing a moving branch chain. The base 1 and the worktable 4 are constrained by the same branch and 3. The five moving branches 2 are connected, and the restraining branch 3 is connected to the center of the table 4 through the Hooke hinge; the first moving branch 21 , the second moving branch 22 and the third moving branch The three moving branches 23 extend up and down, one end is connected to the bracket 11, the other end is connected to the upper end surface of the worktable 4 through a ball hinge, and is not on the same line as the three hinge points of the worktable 4; The four moving branches 24 extend in the front-rear direction, one end is connected to the bracket 11, and the other end is...

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Abstract

The invention discloses a 5-degree-of-freedom parallel machine tool and relates to the field of machine tools. The invention is characterized in that a pedestal 1 and a working table 4 are connected by five identical movement branched chains 2 and a restriction branch 3; wherein, five identical movement branched chains 2 respectively consist of a servomotor 5, a ballscrew nut pair 6 and a fixed-length rod 7 with spherical hinges on both sides; and the restriction branch 3 consists of a slide rail 10, a restriction rod 9 and a hook joint 8. Driven by five servomotors 5, the invention can realize three movements and two rotations of the working platform 4. The invention has the advantages of simple structure, high precision, large rigidity, decoupling of poses of initial assembly, good processing and assembling performance, low inertia in the movement of the movement branched chains, and the like and can be used for the processing of spacial curved surfaces ( sharpeners, impellers, polishing, and hte like.).

Description

technical field [0001] The invention relates to the field of machine tools, in particular to a five-degree-of-freedom parallel machine tool, which can be used for the processing of space curved surfaces (grinding tools, impellers, etc.). Background technique [0002] Compared with the series mechanism, the parallel mechanism has the advantages of simple structure, high rigidity, low self-weight-to-load ratio and high precision. Applying the parallel mechanism to the machine tool field fully utilizes the advantages of the parallel mechanism and provides a new processing and manufacturing equipment for the machine tool field. At present, many countries at home and abroad have invested a lot of manpower and material resources to conduct in-depth research on parallel machine tools, and have achieved great results. [0003] Chinese Patent Publication No. CN1371786A, published on October 2, 2002, the name of the invention is a three-dimensional moving, two-dimensional rotating fi...

Claims

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Application Information

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IPC IPC(8): B23Q1/01B23Q1/26B23Q1/44
Inventor 李研彪计时鸣文东辉袁巧玲
Owner ZHEJIANG UNIV OF TECH
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