JPS6451223A - Toothed wheel chamfering device - Google Patents

Abstract

PURPOSE:To make it possible to improve the working efficiency and to reduce the working time with a low cost equipment by furnishing plural cutting tools to chamfer a workpiece fixed on a table installed to a rotatable body step by step and in one rotation of a rotary shaft. CONSTITUTION:A table 3 and a rotary shaft 7 are rotated in an indexed linking, and a pneumatic cylinder 8 is driven to advance a column 4 until it contacts to the stopper of a specific cutting position of the edge 19 of a groove 10. The advance includes two phases, a rapid feed in the period before the edge 19 just contacts the workpiece and a cutting feed until the edge 19 can cut the specific cutting. Then, after the first cutting to cut a tooth 23a to be processed with an edge 22 in a groove 13, the second cutting is performed at the depth of the groove of the body 9 (I3-I4) and at the amount of the whole axial length (H3-H4) with an edge 21 of a groove 12 by the rotation of the table 3 and the shaft 7. After that, the third cutting is carried out with an edge 20 of a groove 11 at the depth of the groove (I2-I3) and at the amount of the whole axial length (H2-H3), and furthermore, the fourth cutting is executed with the edge 19 at the depth of the groove (I1-I2) and at the amount of the whole axial length (H1-H2). In such a cutting, the shaft 7 rotates one round and the chamfering of the tooth 23a of the workpiece 23 is completed.