Complex-Shaped Parts Grinding Allowance Tactile Measurement

Abstract

The paper shows that the location of the allowance for gear grinding along the periphery of a spur gear is a special case of the allowance location on a part workpiece with an arbitrary shape. The gear has a symmetrical shape with respect to its axis of rotation and, therefore, the alignment of the allowance for gear grinding is performed by turning the gear about this axis. There are other complex-shaped parts with a similar symmetrical shape, for example, impellers, bladed disks, bladed rings, etc. At the same time, there are many varieties of asymmetrical complex-shaped parts, for example, compressor blades, cams, knee and hip implants, etc. In order to align the grinding allowance, such asymmetrical parts must be oriented in space in the direction of more than one degree of freedom. In this sense, the algorithm for the orientation of the gear workpiece relative to the grinding wheel, when setting up the machine is a prototype algorithm for aligning the machining allowance, and therefore the method developed in the paper for reducing the number of tactile measurements of the gear grinding allowance is an example that can be extended to asymmetric complex-shaped parts.