JP2018024077A5 - - Google Patents

Claims (12)

A grinding wheel that grinds a workpiece,
A sensor for detecting the surface roughness of the workpiece ground by the grinding wheel,
A control device that determines the condition of grinding performed after detection based on the surface roughness detected by the sensor, and performs grinding under the determined condition,
Grinding machine system. When the detected surface roughness is larger than a predetermined threshold value, the control device determines a condition that the surface roughness is equal to or less than the threshold value as a condition for grinding performed after the detection, and determines the condition. The grinding machine system according to claim 1, which performs grinding. The control device is
Perform multiple grinding steps in sequence,
The grinding machine system according to claim 2, wherein the timing for switching the plurality of grinding steps is determined based on the surface roughness detected by the sensor. The grinder system according to any one of claims 1-3, wherein the grinder system grinds the workpiece by plunge grinding. The grinder system according to any one of claims 1-3, wherein the grinder system grinds the workpiece by traverse grinding. The control device determines a remaining number of traverses as a condition for the traverse grinding after detection based on the surface roughness detected by the sensor, and performs the traverse grinding of the determined remaining traverse number. Grinder system described in. 7. The grinding machine system according to claim 5, wherein the sensor detects the surface roughness after the traverse grinding by the grinding wheel is completed a predetermined number of times and before the next traverse grinding is started. The grinding machine system according to claim 5, wherein the sensor detects the surface roughness while performing traverse grinding by the grinding wheel. The sensor detects a ground portion of the workpiece in a state in which the workpiece is rotating and the workpiece is traversed relative to the sensor. The grinding machine system according to any one of 5-8. 9. The sensor according to claim 1, wherein the sensor detects the surface roughness within a range of one circumference of a predetermined axial position of the workpiece in the ground portion of the workpiece. Grinding machine system described. The sensor is
Board,
A light emitting element mounted on the substrate and emitting light toward the workpiece;
The light-receiving element mounted on the substrate in the vicinity of the light-emitting element and capable of receiving reflected light from the workpiece. The grinder system is
A plurality of grinding machines provided with the grinding wheel and the sensor, and an analysis device provided on a network to which the plurality of grinding machines are connected,
The control device includes a grinding condition determination unit that determines the grinding condition based on the surface roughness detected by the sensor,
The grinding condition determination unit is provided in the analysis device, and determines a grinding condition based on an analysis result of the surface roughness detected by the sensors in the plurality of grinding machines, 12. The grinding machine system according to one item.