Grinding wheel dressing mechanism of centerless grinding machine

Abstract

The invention discloses a grinding wheel dressing mechanism of a centerless grinding machine. The grinding wheel dressing mechanism comprises a dresser main body and a moving mechanism arranged on the dresser main body. The moving mechanism comprises a first lead screw, a gear and a second lead screw, wherein the first lead screw is transversely movably connected onto the dresser main body, and the second lead screw is vertically arranged on the dresser main body and is movably connected with the dresser main body. The gear is arranged on the dresser main body and is meshed with the first lead screw and the second lead screw respectively. The grinding wheel dressing mechanism achieves adjustment of a guide wheel in the horizontal direction and the vertical direction through matching of the lead screws and the gear, is convenient to use, and improves accuracy and stability of a dresser. In addition, the section of the gear is S-shaped so that interpolation linkage of the dresser can be achieved and further product quality can be greatly improved.

Description

technical field [0001] The invention relates to a dressing mechanism, in particular to a grinding wheel dressing mechanism of a centerless grinder used for processing valve stems, and belongs to the technical field of mechanical processing. Background technique [0002] Grinding of the valve stem is one of the key processes in the production of valves. In the previous centerless grinding machine process, due to the particularity of valve processing, a circular arc transition is required. On the basis of traditional hydraulic pressure, only the profiling plate can be used, so the imitation The processing accuracy requirements of the shape plate are very high, and it is difficult to meet its processing requirements. [0003] Chinese patent literature discloses a dresser, the patent number is "201210541447.0" and the name is "Centerless Grinder Guide Wheel Dresser". The dresser includes a dresser main body, a horizontal movement mechanism and an up and down movement mechanism; ...

AI Technical Summary

Problems solved by technology

[0002] Grinding of the valve stem is one of the key processes in the production of valves. In the previous centerless grinding machine process, due to the particularity of valve processing, a circular arc transition is required. On the basis of traditional hydraulic pressure, only the profiling plate can be used, so the imitation The processing accuracy requirements of the shape plate are very high, and it is difficult to meet its processing requirements

[0003] Chinese patent literature discloses a dresser, the patent number is "201210541447.0" and the name is "Centerless Grinder Guide Wheel Dresser". The dresser includes a dresser main body, a horizontal movement mechanism and an up and down movement mechanism; The body, the slider nut and the horizontal moving screw; the horizontal moving screw is driven by the horizontal moving handle, and the slider nut is driven to move horizontally under the drive of the horizontal moving screw, and the slider nut is fixed on the sliding body through the screw rod And drive the sliding body to move horizontally; the up and down moving mechanism includes: moving the screw rod up and down and moving the handle up and down; the screw rod moving up and down is fixed on the main body of the trimmer through a spare cap and a wrench, and the screw rod moving up and down slides along the edge under the control of the slider The guide groove on the body moves up and down, and the top of the moving screw rod is fixed with a moving handle up and down by bolts; the bottom of the moving screw rod is connected with a gold pen through fixing bolts. Products with special angles or complex shape transitions cannot be profiled, and the processing accuracy is low

Images