A dry cutting CNC gear hobbing machine tool and a method for compensating thermal deformation errors of workpieces
A technology of thermal deformation error and compensation method, which is applied to metal processing machinery parts, manufacturing tools, metal processing equipment, etc., and can solve problems such as poor dimensional consistency and failure to meet dimensional requirements
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Embodiment 1
[0065] see figure 1 , a dry cutting CNC gear hobbing machine tool and a thermal deformation error compensation method of the workpiece. While using the thermal deformation error compensation system of the CNC machine tool to compensate the thermal deformation error of the dry cutting CNC gear hobbing machine tool, the same compensation system is used to compensate the thermal deformation error of the dry cutting CNC gear hobbing machine tool. The thermal deformation error of the processed workpiece is compensated. In this embodiment, the straight tooth workpiece is taken as an example, and the analysis principle of the helical tooth workpiece is the same, and this embodiment only introduces the modeling and compensation of the thermal deformation error of the machine tool in the X direction (the radial direction of the workpiece), and the thermal deformation error modeling and compensation of the machine tool in the Y direction and Z direction. The deformation error modeling a...
Embodiment 2
[0172] The main part of this embodiment is the same as that of Embodiment 1. Specifically, an example of compensation is performed when using the YE3120CNC7 dry-cut CNC gear hobbing machine tool produced by Chongqing Machine Tool Group Co., Ltd. to process an automobile transmission gear with a modulus of 2.5mm and a number of teeth of 36. The steps are as follows :
[0173] 1) Combining the structural features of YE3120CNC7 dry cutting CNC gear hobbing machine tool and the thermal image of the machine tool during processing, determine the thermal sensitive points of the dry cutting CNC gear hobbing machine tool, and arrange 13 temperature sensors "T#2"-"T# at the thermal sensitive points 14", "T#1" temperature sensor is suspended outside the machine tool to measure the ambient temperature, specifically as figure 2 shown.
[0174] According to the temperature data collected by the temperature sensor in the actual processing, the temperature variables are fuzzy clustered, and...
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