Research On Wheel Dressing Device Based On Rack Form Grinding

Nowadays, Rack form grinding method is a widely used processing methods rack. Form grinding method is high accuracy, high efficiency and low cost. Form grinding method can combine the original multi-procedure process into one procedure process, thus greatly improving labor productivity, However, In grinding wheel shape after some time there will be varying degrees of wear and tear,to complete the form grinding process, the problem of forming wheel dressing should be solved first. This paper presents a rack forming dresser solution.This paper analyzes the development of the forming grinding and the grinding wheel dressing method. And the same time, it proposes a form grinding wheel dresser used on the CNC rack form grinding machine.First, according to the gear rack features, the paper designes the corresponding form wheel, and further proposes the forming wheel dresser configuration whose kinematic chain is mobile-turn-moving. A mobile-axis and the rotation axis are driven by the stepper motor, Another moving axis driven by a hydraulic cylinder does linear reciprocating motion. Through the interactive interface of the CNC rack forming grinding machine, the command and Wheel dressing parameters can be entered into machine, combined with easy and safe operation of the control panel. Application of Grating feet and encoder feedback feed error.Secondly, according to the structure of forming wheel dressing system and the requirements of grinding wheel dressing, form wheel dresser control system was designed and the electrical circuit is planned. Forming Dresser control system consists of high- performance PLC, operator panel, input devices, drive shaft control, switching control, sensor devices and other components. Electrical lines are: stepper motor driver circuit, control circuit encoder, encoder control circuit, input and output signal lines. Finally, in order to make grinding wheel dresser work normally and to meet the requirements of dressing, Analysis of the feed system errors and dressing parameters on the accuracy and efficiency of dressing was done. At the same time, form grinding dresser the Programmable Logic Controller programs are written, and the forming wheel dressing experiment is done.Through analyzing experiments of the form grinding wheel dressing, the dresser meet high-precision and low roughness requirements of the NC rack form grinding wheels machine .