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1. 发明专利

JPS6228038A PRECISE WORKING METHOD FOR INNER SPLINE GEAR 失效
公开(公告)号：JPS6228038A
公开(公告)日：1987-02-06
申请号：JP16690785
申请日：1985-07-30
申请人： ISUZU MOTORS LTD
发明人： KAWASAKI YOSHIKI , HAYASHI ATSUSHI , TOGAWA MASARU
IPC分类号： B21H5/00 , B21D3/16 , B21H5/02 , C21D1/673 , C21D9/32
摘要： PURPOSE:To perform the deformation correction of an external tooth and the deformation straightening of the inner spline simultaneously by rapidly cooling simultaneously with the correction of the external tooth by a rolling gear by engaging the inner spline to a plug after heating a work gear with its external tooth. CONSTITUTION:The inner spline is fixed by its engaging with a plug by heating the work gear 1 subjected to a cementation to the prescribed temp. after the tooth profile formation and spline forming. The gear 1 is then bitten with driving and fixed rolling gears 3, 4 in order by advancing the plug along a guide groove 5 and bent groove 5' in the state of engaging the gear 1 with pressure rolling gear 2. The work gear 1 is rapidly cooled simultaneously with the correcting of the external tooth by the rolling gears 2, 3, 4 in this state. The deformation correction of the external tooth and the deformation straightening of the inner spline can be thus performed simultaneously.

2. 发明专利

JPS62157713A PUSH BROACH 失效
公开(公告)号：JPS62157713A
公开(公告)日：1987-07-13
申请号：JP29877685
申请日：1985-12-30
申请人： ISUZU MOTORS LTD
发明人： HAYASHI ATSUSHI , KAWASAKI YOSHIKI , TOGAWA MASARU
IPC分类号： B23D43/00
摘要： PURPOSE:To omit a recess by constituting a push broach, which forms a groove for a spline on a blind hole by insertion/return cutting, with cutting edges formed with edges in the forward direction, a middle guide section, and a return edge formed with an edge in the backward direction. CONSTITUTION:A cutting edge section 5 is constituted of cutting edges 6, a return edge 7 and a middle guide section 8. The cutting edges 6 are formed with the first, second and third cutting edges so that the outer shape is made gradually larger from a forward guide section 3 toward a shank 2. Edges 6a of these cutting edges 6 are formed in the direction of the forward guide section 3, and the edge 7a of the return edge 7 is formed in the direction of the shank 2. Accordingly, the prepared hole 10 of a work 9 is cut into a predetermined shape by the cutting edges 6 at a push and is cut by the return edge 7 at a return process, thus no burr is generated in the prepared hole 10 of the work 9, and no recess is required to be formed. In addition, high accuracy can be obtained.

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