Small-modulus cylindrical gear hobbing force measuring device for five-axis linkage milling center

Abstract

A small-modulus cylindrical gear hobbing force measuring device for a five-axis linkage milling center comprises the five-axis linkage milling center, a measuring cell, a hob arbor, a hob, a workpiece, a workpiece mandrel and a three-claw chuck. The five-axis linkage milling center comprises a rack and a main shaft. The hob is in rigid connection with the hob arbor through an outer-hexagonal headnut and a hob spacer bush. The hob arbor is installed on the measuring cell, and the measuring cell is installed on the main shaft. The workpiece to be machined is located below the hob. The workpieceis in rigid connection with the workpiece mandrel through an outer-hexagonal nut and a workpiece spacer bush. The workpiece mandrel is installed on the three-claw chuck, and the three-claw chuck is fixed to a workbench. The measuring cell is connected with a data acquisition card, and the data acquisition card is connected with a computer. The small-modulus cylindrical gear hobbing force measuring device can record the cutting force situations changed in real time of the hob in the small-modulus cylindrical gear hobbing cutting process.

Description

technical field [0001] The invention relates to the technical field of cutting, and more specifically relates to a hobbing force measuring device for small modulus cylindrical gears in a five-axis linkage milling center. Background technique [0002] Cylindrical gears are important transmission components in mechanical systems, and their quality directly affects the transmission accuracy and working performance of mechanical products. Due to its high precision and efficiency, hobbing is widely used in the rough machining of cylindrical gears and even as the last machining process. Cutting force is one of the most basic physical phenomena in the hobbing process. Its accurate measurement is an important basis for judging the processing state, monitoring the tool state, optimizing the cutting process, ensuring the processing quality and improving the reliability of the processing system. At present, the hobbing force measurement method generally adopts the method of installing...

AI Technical Summary

Problems solved by technology

At present, the hobbing force measurement method generally adopts the method of installing the dynamometer on the worktable, that is, the workpiece is installed on the dynamometer, the dynamometer is installed in a custom-made fixture, and the fixture is fixed on the rotary table. Above; the fixture for fixing the dynamometer is designed and manufactured according to the structural form of the workbench, and workbenches with different structures require different types of fixtures; in addition, the dynamometer is installed on the workbench and measured in this way is on the workpiece At the same time, due to the meshing movement between the hob and the workpiece, the cutting force changes with the machining position all the time. This change makes the conversion from the cutting force of the workpiece to the cutting force of the hob extremely cumbersome, giving the cutting force of the hob Force-focused research creates difficulties

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