Boots – shoes – and leggings
Patent
1983-01-18
1985-02-26
Smith, Jerry
Boots, shoes, and leggings
5116571, 5116587, 5116588, 364171, 364167, 318569, G06F 1546, E05D 1522, H02M 516, H02M 522
Patent
active
045021252
ABSTRACT:
A numerical controller for an angular slide grinding machine capable of controlling movement of a work table with a dressing tool in a machine coordinate system in a dressing operation and a workpiece coordinate system in a grinding operation. When the work table is initially moved to such a position as to bring the dressing tool into slight contact with an end surface of a grinding wheel carried by a wheel head, the numerical controller calculates and stores a dressing reference value indicating a positional relation between a fixed machine origination position and the dressing tool in the machine coordinate system. Prior to grinding operations for each workpiece, the work table is moved under the control of a sizing device to such a position as to present a reference surface of the workpiece to a predetermined positional relation with the original machine position. The numerical controller at this time calculates and stores a coordinate difference between the machine coordinate system and the workpiece coordinate system. When a dressing operation is needed following a grinding operation, the numerical controller calculates a dressing start position or coordinate value of the work table in the machine coordinate system based upon the dressing reference value previously calculated and stored and a dressing start coordinate value of the wheel head indicated by a present position counter for the wheel head and then, converts the calculated dressing start coordinate value into a corresponding coordinate value in the workpiece coordinate system based upon the coordinate difference previously calculated and stored.
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Werkstatt und Betrieb, 110, (1977), 8, "Einsatz von NC Pundschleif-maschinen", by Ulrich Vetter, pp. 457-481, particularly Bild 2c.
Sakakibara Yasuji
Yoneda Takao
Grossman Jon B.
Smith Jerry
Toyoda Koki Kabushiki Kaisha
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