Spiral bevel gear machine tool numerical control system and control method thereof

Abstract

The invention discloses a spiral bevel gear machine tool numerical control system, by which the traditional mechanical transmission is simplified, exchange is unnecessary for a change wheel, adjustment time for the machine tool is shortened, a mechanical transmission chain is simplified, higher machining accuracy and steady machining quality can be obtained, and the machine tool can be conveniently adjusted, and parameters of generating cutting, dividing, gear feeding, revolving speed of a milling cutter, and reversing of a cradle can be set according to requirements of different cutting methods; and simultaneously, machining efficiency of the machine tool can be greatly improved. Additionally, in the control method of the spiral bevel gear machine tool numerical control system, programming is unnecessary, the adjustment period is shortened, numerical control improvement on normal gear cutting machine tools is facilitated, gear cutting parameters are set in one picture, a tooth surface curvature corrected value is introduced, and the adjustment is more accurate, quicker and more convenient, so that the method is suitable for small-scale production and large-scale production.

Description

Technical field [0001] The invention relates to the field of numerical control machine tools, and specifically refers to a numerical control system and control method of a spiral bevel gear machine tool. Background technique [0002] As we all know, gear is the most basic mechanical transmission element, and its use is large and wide. Gear machine tools are recognized by the machine tool industry as one of the products with the highest technical content, the most parts and the most complex structure. It is widely used in various machinery manufacturing industries such as automobiles, tractors, machine tools, engineering machinery, mining machinery, metallurgical machinery, petroleum, instrumentation, aircraft and spacecraft. Spiral bevel gears occupy a very important position in the machinery industry with their good dynamic performance. However, due to the complex shape of the tooth surface of the spiral bevel gear, the calculation formula of the tooth surface is beyond the no...

AI Technical Summary

Problems solved by technology

This idea is cumbersome and difficult to operate, and it is difficult for ordinary operators to master, and the debugging cycle for each gear production and processing is long, which brings difficulties to the application and promotion of supporting machine tools

[0004] Most of the processing equipment for spiral bevel gears adopts wet processing and the production efficiency is low. From the perspective of the machine tools used, most of them are imported mechanical gear milling machines (mostly from the United States or the former Soviet Union), and most of them are second-hand equipment eliminated from abroad. , its price is high, and production and debugging are very troublesome. Every time a gear of a specification is produced, it is necessary to carry out complicated calculations or frequently replace the hanging gear. The process is complicated and lengthy, the amount of calculation is large, and the relevant knowledge of the operator is required to be high. If there is a slight error in the calculation result, it must be recalculated, which makes the cycle of processing a pair of gears long and the cost is high.

Moreover, the number of such machine tools is becoming less and less, which cannot meet the market demand at all; imported advanced spiral bevel gear CNC processing equipment is not only expensive, but also difficult to maintain, and ordinary small and medium-sized enterprises cannot afford to purchase and use

Some small and medium-sized machine tool manufacturers supporting imported CNC systems do not have software development capabilities and can only manually compile macro programs for processing, which is difficult to master in terms of operation, programming and maintenance. requirements, the use effect is greatly reduced, and the lack of competitiveness makes it difficult to popularize and promote the product

What is more worth mentioning is that if the control system cannot introduce correction items, it is very difficult to select the curvature correction amount of the tooth surface of the spiral bevel gear. highly dependent on personnel experience

Images