Grinding wheel dressing device

Abstract

The invention provides a grinding wheel dressing device. The device is used for dressing the profile of a blank grinding wheel according to gear parameters of a target gear, and comprises a body, an input setting part, a section profile calculation part, a section profile curve drawing part, an initial dressing position acquisition part and a control part, wherein the body comprises a diamond wheel, a revolving unit and a moving unit; the diamond wheel is used for dressing the profile; the revolving unit is fixed to the blank grinding wheel for driving the blank grinding wheel to revolve; the moving unit is used for driving the revolving unit to drive the blank grinding wheel to move relative to the diamond wheel; the input setting part is used for inputting the gear parameters and initial parameters of the blank grinding wheel by an operator; the section profile calculation part is used for calculating target section profile data and initial section profile data based on a predetermined section profile calculation formula respectively; the section profile curve drawing part is used for drawing a target section profile curve and an initial section profile curve respectively; the initial dressing position acquisition part is used for moving the target section profile curve to be tangent to the initial section profile curve to obtain an initial dressing position; the control part is used for controlling the revolving unit to move according to the target section profile curve based on the initial dressing position so as to dress the profile of the blank grinding wheel by the diamond wheel.

Description

technical field [0001] The invention relates to a grinding wheel dressing device, in particular to a grinding wheel dressing device capable of making the profile of the dressed grinding wheel have a smooth surface. Background technique [0002] Form grinding is to use form grinding wheel to grind gears. It is one of the methods of gear finishing. Because of its high grinding efficiency, it has attracted more and more attention and has been developed rapidly. The key to ensure the accuracy of the tooth profile when grinding helical gears with the forming method is the dressing of the forming grinding wheel. The truncated shape of the forming grinding wheel directly determines the tooth profile of the grinding gear, and the dressing accuracy directly determines the quality of the grinding gear. The dressing of the forming grinding wheel is divided into pre-grinding dressing and intermediate dressing according to the sequence. The pre-grinding dressing is the forming dressing, ...

AI Technical Summary

Problems solved by technology

[0004] (1) The starting position of each trial dressing is roughly determined. It must be manually judged whether the machining allowance is too large, whether the grinding wheel and the diamond wheel will be damaged, and the starting position of the dressing is determined through multiple trial dressings. This method will take a lot of time and reduce the trimming efficiency

[0005] (2) The setting of the dressing position generally only offsets the X-axis or Y-axis relative to the axial center line of the grinding wheel. For the grinding wheel with a large amount of removal, it may not be possible to set the starting point of dressing due to the travel limitation of the X-axis or Y-axis of the machine tool. Therefore, the grinding wheel must be placed on the lathe for rough turning to remove part of the material, and then placed on the grinder for forming and dressing, which increases the complexity of the process

[0006] In addition, the profile of the grinding wheel obtained after dressing by the current dressing method is not smooth enough and uneven. Therefore, the tooth shape of the gear ground by such a grinding wheel does not meet the production requirements

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