Two parallel move and two rotary motion parallel device containing plane 5 rods circuit for imaginary axis machine tool and robot

A technology of CNC machine tools and robots, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as difficulty in manufacturing high-precision ball pairs, complex mechanisms, and small working space

Inactive Publication Date: 2005-07-20
杨廷力
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, (1) kinematics is difficult to solve; (2) the motion platform pose is a strong coupling of input, which is not conducive to control; (3) the mechanism is complex, so that the work space is small; (4) it is difficult to manufacture high-precision ball pairs Wait

Method used

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  • Two parallel move and two rotary motion parallel device containing plane 5 rods circuit for imaginary axis machine tool and robot
  • Two parallel move and two rotary motion parallel device containing plane 5 rods circuit for imaginary axis machine tool and robot
  • Two parallel move and two rotary motion parallel device containing plane 5 rods circuit for imaginary axis machine tool and robot

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Embodiment Construction

[0010] attached figure 1 The structure shown may also be an embodiment of the invention. It consists of a dynamic platform 1, a static platform 2, and three branches with incomplete structures. The two branches with the same structure are connected in series by four components 3, 4, 5, and 6, and three parallel rotating pairs R 7 and perpendicular to the revolving joint R 7 Two parallel revolving pairs R 8 Composition; the third is the generalized branch, which consists of 5 revolving pairs R 9 A 5-bar planar loop in series with a universal joint T 10 Composition, the axis of a rotating pair of the universal joint coincides with the axis of a rotating pair of the circuit, and the universal joint is fixedly connected with the moving platform; the components at both ends of the branches are fixedly connected to the moving and static platforms respectively, but located at The axes of the three rotating pairs belonging to the three branches on the moving platform are arranged ...

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Abstract

One kind of parallel mechanism with four freedoms is provided. The parallel mechanism consists of dynamic platform, static platform and three branches. Of the branches, each of two in the same structure consists of three parallel rotating pairs and two serially connected rotating pair; and the third as one generalized branch consists of one planar five-rod loop of five rotating pairs and one serially connected gimbal. The configuration mode of branches and the platforms includes configuring three rotating pairs in the dynamic platform belonging to three branches parallelly, configuring four rotating pairs in the static platform belonging to four branches parallelly, and driving the four rotating pairs in the static platform to control the two-translation and two-rotation output of the dynamic platform. The mechanism may be used in development and application of virtual shaft machine tool and robots.

Description

technical field [0001] The invention relates to an executive mechanism of a machine tool and a robot. Specifically, it provides a new type of two-translation and two-rotation parallel mechanism for a virtual-axis numerical control machine tool with a parallel structure and a parallel robot. Background technique [0002] Parallel structure CNC machine tool refers to the machine tool with parallel mechanism as the executive mechanism. This machine tool is considered to be a revolution in the structure of machine tools since the 20th century. At present, prototypes of this machine tool have been developed in the United States, Japan and other countries, and the parallel mechanisms used are all traditional Stewart mechanisms. This mechanism for controlling the position and attitude of the tool in space is mainly composed of a base, a moving platform and a connecting rod. The base and the moving platform are connected by a connecting rod, and the two ends of the connecting rod ar...

Claims

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Application Information

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IPC IPC(8): B23Q7/14B23Q41/00B23Q41/04
Inventor 杨廷力
Owner 杨廷力
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