Heat error measuring system of whole workbench of numerical control machine tool and measuring method of system

A technology of numerical control machine tools and measurement systems, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of less research on thermal errors, differences in thermal errors, and lack of publications

Active Publication Date: 2016-07-20
HEFEI UNIV OF TECH
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Problems solved by technology

At the same time, the workbench itself is affected by the thermal deformation of the body, and the thermal deformation of each point on the workbench is not the same. These factors will lead to differences in th

Method used

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  • Heat error measuring system of whole workbench of numerical control machine tool and measuring method of system
  • Heat error measuring system of whole workbench of numerical control machine tool and measuring method of system
  • Heat error measuring system of whole workbench of numerical control machine tool and measuring method of system

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Embodiment Construction

[0033] Such as figure 1 As shown, a thermal error measurement system for a full workbench of a CNC machine tool includes a positioning plate 3 adsorbed on the workbench 2 of the CNC machine tool, and a plurality of cuboid standard parts 4 are uniformly installed on the positioning plate 3. The PMC module I / O port of the system is connected with the signal converter 5, and the signal converter 5 communicates bidirectionally with the computer 6, and the probe 7 is installed at the tool position of the numerically controlled machine tool 1, the cuboid standard part 4, the probe, The numerical control machine tool 1, the signal converter 5 and the computer 6 form a thermal error measurement system. The measuring head 7 measures the thermal error by touching the surfaces of each cuboid standard part 4 sequentially according to a certain path, such as Figure 5 In the S-shaped path shown, the measurement data is output to the I / O port through the PMC module of the numerical control...

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Abstract

The invention relates to a heat error measuring system of the whole workbench of a numerical control machine tool and a measuring method of the system. A positioning plate adsorbed by the surface of the workbench of the numerical control machine tool, the positioning plate is provided with multiple cuboid standard members uniformly, an I/O port of a PMC module of a numerical control system of the machine tool is connected with a signal converter, the signal converter is in bidirectional communication with a computer, a measuring head is mounted in a cutter position of the numerical control machine tool, and the cuboid standard members, the measuring head, the numerical control machine tool, the signal converter and the computer form the heat error measuring system. According to the invention, multi-point heat error measurement of the workbench of the numerical control machine tool can be realized via only one measuring head and multiple cuboid standard members, and the cost is low; and the signal converter is used to realize communication between the numerical control machine tool and the computer, data is measured and stored automatically, the required labor force of measurement is reduced substantially, and manual errors caused by manual measurement and manual data recording are avoided.

Description

technical field [0001] The invention relates to the technical field of thermal error measurement of machine tools, in particular to a thermal error measurement system and a measurement method for the entire workbench of a numerically controlled machine tool. Background technique [0002] CNC machine tools are a milestone in modern industry. During processing, there is no need to manually control the tool, and the degree of automation is high, which greatly improves the processing efficiency and the stability of product quality, and at the same time reduces the labor intensity and skill level of the operators. deep influence. Due to the complex structure of the CNC machine tool and many heat sources during operation, the temperature field in the space is a non-uniform temperature field and changes with time. The parts of the CNC machine tool are heated unevenly, resulting in thermal deformation, which can easily cause the top of the tool and the surface of the workpiece to be...

Claims

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Application Information

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IPC IPC(8): G05B19/401
CPCG05B19/401G05B2219/33281
Inventor 苗恩铭刘辉高保林徐建国
Owner HEFEI UNIV OF TECH
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