JPS6274963U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を取付けたホーン
ヘツドの断面正面図、第２図は砥石台の平面図、
第３図は同断面正面図、第４図は第２図の断面側
面図、第５図は拡張部材の断面正面図、第６図は
同底面図、第７図はホーンヘツド本体の断面正面
図、第８図は同右側側面図である。 １……拡張部材、２……砥石台、３……テーパ
ー孔、２６……切欠き溝、２７，２８……切込み
溝、２９……逃げ溝、３０……ダイヤモンド等の
砥粒、θ……中心角。 Fig. 1 is a cross-sectional front view of a horn head with an embodiment of this invention installed, Fig. 2 is a plan view of the grindstone head,
Fig. 3 is a front cross-sectional view of the same, Fig. 4 is a cross-sectional side view of Fig. 2, Fig. 5 is a cross-sectional front view of the expansion member, Fig. 6 is a bottom view of the same, and Fig. 7 is a cross-sectional front view of the horn head body. , FIG. 8 is a right side view of the same. 1... Expansion member, 2... Grinding head, 3... Tapered hole, 26... Notch groove, 27, 28... Cut groove, 29... Relief groove, 30... Abrasive grain such as diamond, θ... ...central angle.

Claims (1)

【実用新案登録請求の範囲】 シヤンクの先端に、砥石台が取付けられ、砥石
台は、シヤンクに対し、樹方向の移動が規制され
、 砥石台の内面は、基端から先端に向うにしたが
いしだいに径の小さくなる円錐面とされ、 砥石台の内面に、溝底残部が均一な厚さとなる
切欠き溝が、周方向均等に配され、かつ、長手方
向全長にわたつて形成され、 この切欠き溝の底に相当する外周部に、砥石台
の両端から、軸方向に向けて交互に、砥石台の長
さより幾分短い切欠き溝が形成され、 シヤンクと同軸で、シヤンクに対して軸方向に
移動可能な操作軸が設けられ、 この操作軸の先端に、拡張部材が設けられ、 拡張部材は、外面が、砥石台の内面と同一の傾
斜面とされた円錐面に形成された円錐台４を備え
ており、 円錐台の外面が砥石台の内面に接触するように
、拡張部材が砥石台内に挿入されてなることを特
徴とする ホーンヘツド用砥石台装置。[Scope of Claim for Utility Model Registration] A whetstone head is attached to the tip of the shank, the movement of the whetstone head in the direction of the grain with respect to the shank is restricted, and the inner surface of the whetstone head gradually moves from the base end to the tip end. The grinding wheel head has a conical surface with a decreasing diameter, and on the inner surface of the grinding wheelhead, notched grooves with a uniform thickness at the bottom of the groove are distributed evenly in the circumferential direction and are formed over the entire length in the longitudinal direction. Notch grooves that are somewhat shorter than the length of the grinding wheel head are formed alternately from both ends of the grinding wheel head in the axial direction on the outer periphery corresponding to the bottom of the notched groove, and are coaxial with the shank and axially relative to the shank. An operating shaft movable in the direction is provided, and an expanding member is provided at the tip of the operating shaft. A grindstone head device for a horn head, comprising a stand 4, and an expansion member inserted into the whetstone head so that the outer surface of the truncated cone contacts the inner surface of the whetstone head.