JPH0270928U - - Google Patents

Info

Publication number
JPH0270928U
JPH0270928U JP14793188U JP14793188U JPH0270928U JP H0270928 U JPH0270928 U JP H0270928U JP 14793188 U JP14793188 U JP 14793188U JP 14793188 U JP14793188 U JP 14793188U JP H0270928 U JPH0270928 U JP H0270928U
Authority
JP
Japan
Prior art keywords
thread
flank
protruding
circumferential direction
axial direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14793188U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP14793188U priority Critical patent/JPH0270928U/ja
Publication of JPH0270928U publication Critical patent/JPH0270928U/ja
Pending legal-status Critical Current

Links

Description

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

第１図は本考案の一実施例である多山ねじフラ
イスの正面図である。第２図は第１図の多山ねじ
フライスの先端側からの視図である。第３図は第
１図の多山ねじフライスによつて削り出される切
屑の形状を説明する図である。第４図は従来の多
山ねじフライスによつて削り出される切屑の形状
を説明する図である。 １０：多山ねじフライス、１４：凸条、２０ａ
，２０ｂ，２０ｃ，２０ｄ：凸条群、２２：切刃
。 FIG. 1 is a front view of a multi-thread milling cutter that is an embodiment of the present invention. FIG. 2 is a view from the tip side of the multi-thread milling cutter shown in FIG. 1. FIG. 3 is a diagram illustrating the shape of chips cut out by the multi-thread milling cutter of FIG. 1. FIG. FIG. 4 is a diagram illustrating the shape of chips cut out by a conventional multi-thread milling cutter. 10: Multi-thread milling cutter, 14: Convex strip, 20a
, 20b, 20c, 20d: protrusion group, 22: cutting edge.

Claims (1)

【実用新案登録請求の範囲】 形成すべきねじのねじ溝に対応する形状の切刃
が周方向の一端に設けられた凸条を軸方向に複数
本連なつて備えた多山ねじフライスにおいて、 前記軸方向に連なる一連の凸条から成る凸条群
を、前記切刃が交互に逆方向にねじれたねじれ刃
となり且つリードが零となるように周方向に偶数
設けるとともに、該凸条群における各凸条の一対
のフランクのうちアキシヤルレーキが負となる側
のフランクを他方のフランクに接近する方向へ逃
がしたことを特徴とする多山ねじフライス。[Scope of Claim for Utility Model Registration] A multi-thread thread milling machine comprising a plurality of protrusions connected in the axial direction, each of which has a cutting edge shaped to correspond to the thread groove of the thread to be formed, and is provided at one end in the circumferential direction. An even number of protruding strip groups consisting of a series of protruding stripes connected in the axial direction are provided in the circumferential direction so that the cutting blades become twisted blades twisted in opposite directions alternately and the lead is zero, and in the protruding strip groups, A multi-thread thread milling cutter characterized in that, of a pair of flanks of each convex strip, the flank on the side where the axial rake is negative is released in a direction approaching the other flank.
JP14793188U 1988-11-12 1988-11-12 Pending JPH0270928U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14793188U JPH0270928U (en) 1988-11-12 1988-11-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14793188U JPH0270928U (en) 1988-11-12 1988-11-12

Publications (1)

Publication Number Publication Date
JPH0270928U true JPH0270928U (en) 1990-05-30

Family

ID=31418794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14793188U Pending JPH0270928U (en) 1988-11-12 1988-11-12

Country Status (1)

Country Link
JP (1) JPH0270928U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057192A1 (en) * 2007-10-29 2009-05-07 Osg Corporation Thread milling cutter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939250A (en) * 1982-08-27 1984-03-03 Fumihiko Masuda Apparatus for preparation of combined cake or bun

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939250A (en) * 1982-08-27 1984-03-03 Fumihiko Masuda Apparatus for preparation of combined cake or bun

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057192A1 (en) * 2007-10-29 2009-05-07 Osg Corporation Thread milling cutter
JP4996694B2 (en) * 2007-10-29 2012-08-08 オーエスジー株式会社 Thread milling

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