Temperature prediction method applied to lead screw whirling-cutter milling machining region

Abstract

The invention discloses a temperature prediction method applied to a lead screw whirling-cutter milling cutting machining region. According to the method, first, transient non-deformed cutting thickness and width and area models at a first stage and a second stage of lead screw whirling-cutter milling cutting are established; then modeling is performed on a transient heat source area of the lead screw whirling-cutter milling cutting machining region, wherein the models mainly include a first deformed region shear transient zone heat source width model, an area model and a second deformed region tool-cutting contact friction transient heat source area model; and last, a temperature model is established for the lead screw whirling-cutter milling machining region, the established models aboutnon-deformed cuttings and the heat source area are substituted into the temperature model for solving, and finally transient temperature distribution of workpieces, cuttings and tools in the cuttingmachining region is acquired. Through the method, transient temperature distribution of the workpieces, the cuttings and the tools in the cutting machining region can be accurately predicted, the method is easy to implement and convenient to operate, and a reference basis is provided for lead screw whirling-cutter milling parameter optimization.

Description

technical field [0001] The invention belongs to the field of mechanical processing, in particular to a method for predicting the temperature of a cyclone milling processing area. Background technique [0002] Traditional lead screw processing generally adopts rough turning, finishing turning and grinding processes. The processing methods are complex and inefficient, and the coolant or cutting fluid used in the processing process will cause great pollution to the environment. Compared with the traditional processing method, screw whirl milling has the characteristics of one-time forming, and has higher material removal rate and environmental protection characteristics brought by dry cutting. Therefore, using whirlwind milling to process the lead screw can better meet the production requirements and environmental requirements of the lead screw. There are four main movements in the machining process of screw whirl milling: such as figure 1 As shown, the high-speed rotary moti...

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Problems solved by technology

[0007] In view of the deficiencies in the prior art above, the present invention provides a temperature prediction method for the whirl milling processing area of ​​the lead screw, which solves the technical problem that the prior art cannot perform temperature prediction for the whirl milling processing area of ​​the lead screw, and can be used for the whirl milling processing. The characteristics of the temperature prediction model are constructed, which can predict the temperature of the processing area without interfering with the cutting process, get rid of the dependence on artificial thermocouples or semi-artificial thermocouples, and only need to input relevant parameters to realize temperature prediction, which is simple and fast

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