Two-freedom parallel machine tool

A technology of parallel connection and machine tool, which is applied in the direction of metal processing machinery parts, large fixed members, metal processing equipment, etc. It can solve the problems of low rigidity of vertical plane, poor processing and assembly process, and easy deformation of moving components without fundamentally improving them. Achieve the effect of good processing and assembly technology, compact mechanism and high rigidity

Inactive Publication Date: 2011-05-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most two-degree-of-freedom moving mechanisms adopt a parallelogram branch chain structure to realize the two-degree-of-freedom movement of the terminal platform, such as CN1628939A, CN2700064Y, CN2693428Y, CN1715009A and CN2741730Y. The force is small, and each moving component is easily deformed and the rigidity is small
CN1718574A proposes to add two constrained branch structures, but it does not fundamentally improve the problem of low stiffness of the vertical plane, and its control is more difficult
Peng Binbin proposed a two-degree-of-freedom translational robot. This mechanism adopts the form of a spherical joint, and each moving rod is installed obliquely, and its processing and assembly process is poor.

Method used

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Embodiment Construction

[0015] With reference to accompanying drawing, further illustrate the present invention:

[0016] A two-free parallel machine tool, including a base 1 composed of a base plate 11 and a support column 12 perpendicular to the base plate 11, and a parallel mechanism erected on the base 1;

[0017] The parallel mechanism includes a crossbeam 2 fixed on the support column of the base, a motor and a guide rail fixed on the crossbeam 2, a slider that moves with the motor and slides up and down along the guide rail, a connecting rod that is connected with the slider and a A platform linked by connecting rods;

[0018] The beam is provided with a first motor 31, a second motor 32 and a third motor 33, each motor corresponds to a combination of a guide rail 5 and a slide block 6, and each slide block 6 is connected to a connecting rod; The first connecting rod 41 interlocked with the first motor 31 is located between the second connecting rod 42 interlocked with the second motor 32 and...

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Abstract

The invention discloses a two-freedom parallel machine tool, which comprises a base consisting of a baseplate and a support post vertical to the baseplate, and a parallel mechanism erected on the base, wherein the parallel mechanism comprises a crossbeam fixed on the support post of the base, motors and guide rails fixed on the crossbeam, slide blocks linked with the motors and sliding vertically along the guide rails, connecting rods linked with the slide blocks, and a platform linked with the connecting rods; the crossbeam is provided with a first motor, a second motor and a third motor, each motor corresponds to a guide rail and slide block combination, and each slide block is connected with a connecting rod; a first connecting rod linked with the first motor is positioned between a second connecting rod linked with the second motor and a third connecting motor linked with the third motor; the first and second connecting rods are hinged with the platform; and the third connecting rod is hinged to the middle of the first connecting rod. The two-freedom parallel machine tool has the advantages of high bearing capacity, good processing and assembly process, compact structure, high precision and high rigidity.

Description

technical field [0001] The invention relates to a two-free parallel machine tool. technical background [0002] Parallel robots have the advantages of compact structure, high rigidity, and high precision. They have attracted the attention of scholars at home and abroad, and have been widely used in the fields of mechanical processing, aerospace, and material handling and sorting. [0003] At present, most two-degree-of-freedom moving mechanisms adopt a parallelogram branch chain structure to realize the two-degree-of-freedom movement of the terminal platform, such as CN1628939A, CN2700064Y, CN2693428Y, CN1715009A and CN2741730Y. The force is small, and each moving component is easily deformed and the rigidity is small. CN1718574A proposes adding two constrained branch structures, which does not fundamentally improve the problem of low stiffness in the vertical plane, and its control is relatively difficult. Peng Binbin proposed a two-degree-of-freedom translational robot. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/56
Inventor 李研彪文东辉谭大鹏计时鸣金明生张利
Owner ZHEJIANG UNIV OF TECH
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