In the present study, a novel grinding wheel design method is proposed to design a wheel for grinding different small helical grooves on the existing helical rake faces of the tool. The proposed method can be applied to manufacture tools with uneven helical rake face like zigzag-edge twist drills. In the proposed method, the processing of the non-wedge groove is initially converted into a superposition of processing steps of several wedge grooves. Then, based on the simplified non-thickness grinding wheel parametric design and envelop graphic design, the grinding wheel capable of processing small wedge grooves with various specified shapes can be obtained. Moreover, through establishing quantitative evaluation criteria, the determination of design parameters concerning the non-thickness grinding wheel is transmitted into an optimization problem. Finally, helical grooves with trapezoid truncation and wedge truncations are simulated on a virtual five-axis machine tool to verify the effectiveness of the grinding wheel design method.

在本研究中，提出了一种新的砂轮设计方法来设计一种砂轮，用于在刀具的现有螺旋前刀面上磨削不同的小螺旋槽。该方法可用于制造锯齿形麻花钻等具有不均匀螺旋前刀面的刀具。在所提出的方法中，非楔形凹槽的加工最初被转换为几个楔形凹槽的加工步骤的叠加。然后，基于简化的非厚度砂轮参数化设计和包络图形设计，可以得到能够加工各种规定形状的小楔形槽的砂轮。此外，通过建立定量评价标准，将非厚度砂轮设计参数的确定转化为优化问题。