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A six-degree-of-freedom serial-parallel hybrid numerical control machine tool and its post-processing method

A technology of numerical control machine tools and degrees of freedom, which is applied in the direction of program control of manipulators, manipulators, metal processing machinery parts, etc., can solve the problems of forward-looking consideration of inverse kinematics transformation and post-processing methods of hybrid machine tools, and achieve high rigidity, simple process, Computationally efficient effects

Active Publication Date: 2022-08-02
HARBIN ENG UNIV
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  • Application Information

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Problems solved by technology

However, most of the existing technologies are aimed at improving the dynamic performance of machine tools, and the inverse kinematics transformation and post-processing methods of hybrid machine tools have not been considered in the design process.

Method used

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  • A six-degree-of-freedom serial-parallel hybrid numerical control machine tool and its post-processing method
  • A six-degree-of-freedom serial-parallel hybrid numerical control machine tool and its post-processing method
  • A six-degree-of-freedom serial-parallel hybrid numerical control machine tool and its post-processing method

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Embodiment Construction

[0049] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0050] figure 1 It is a schematic diagram of the structure of a six-degree-of-freedom serial-parallel hybrid CNC machine tool. The device is mainly composed of base 1, bed 2, X-axis motor 3, X-axis screw 4, X-axis guide 5, X-axis slide 6, column 7, Z-axis motor 8, Z-axis screw 9, Z-axis nut 10. Z-axis guide rail 11 , beam 12 , Y-axis motor 13 , Y-axis screw 14 , Y-axis slide table 15 , Y-axis guide rail 16 , parallel mechanism connecting frame 17 , parallel mechanism 18 , and tool 19 .

[0051] figure 2 Schematic diagram of the parallel mechanism. The parallel mechanism is mainly composed of an upper platform 1801 , a ball hinge 1802 , a restraining rod 1803 , an electric cylinder 1804 , a Hooke hinge 1805 , and a lower platform 1806 .

[0052] The operation mode and post-processing steps of the machine tool are as follows:

[005...

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Abstract

The invention provides a six-degree-of-freedom serial-parallel hybrid numerical control machine tool and a post-processing method thereof. The invention belongs to the field of robots and high-end numerically-controlled machine tools, and relates to a structure of a six-degree-of-freedom serial-parallel hybrid machine tool, and a machine tool with the structure. post-processing method. First, a six-degree-of-freedom series-parallel hybrid CNC machine tool consisting of a series frame with three moving degrees of freedom and a parallel swing head with three rotational degrees of freedom is built; The post-processing method of the position coordinates of each feed axis of a serial-parallel-mixed CNC machine tool with degrees of freedom. This machine tool not only combines the advantages of the large working space of the serial machine tool and the good dynamic performance of the parallel machine tool, but also because the control of the tool position and attitude is completed by the serial part and the parallel part respectively, it can realize the decoupling control of the tool position control and attitude, and post-processing The calculation method has simple process and high calculation efficiency, is suitable for high-speed and high-precision processing, and has broad application prospects.

Description

technical field [0001] The invention belongs to the field of robots and high-end numerically controlled machine tools, and relates to a structure of a six-degree-of-freedom serial-parallel hybrid machine tool and a machine tool post-processing method for the structure. Background technique [0002] As an "industrial mother machine", the performance level of machine tools is an important symbol of the development of the country's high-end manufacturing industry. Therefore, it is of great significance to study the structural design of CNC machine tools with the goal of improving the performance of machine tools for the improvement of the development level of the hard power of major countries. According to the structure and configuration, CNC machine tools can be divided into two categories: series and parallel machine tools. The series machine tool has a large workspace and can process large parts. The kinematics and dynamics calculation and control are relatively simple, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/25B23Q5/40B25J9/00B25J9/16
CPCB23Q1/25B23Q5/40B25J9/0072B25J9/1664B25J9/1607
Inventor 宋得宁陈卓周超钟宇光马建伟姚建均
Owner HARBIN ENG UNIV
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