JPH0520806U - Chip fixing structure for bite holder - Google Patents

Chip fixing structure for bite holder

Info

Publication number
JPH0520806U
JPH0520806U JP1176591U JP1176591U JPH0520806U JP H0520806 U JPH0520806 U JP H0520806U JP 1176591 U JP1176591 U JP 1176591U JP 1176591 U JP1176591 U JP 1176591U JP H0520806 U JPH0520806 U JP H0520806U
Authority
JP
Japan
Prior art keywords
tip
holder body
holder
insertion hole
fixing
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
JP1176591U
Other languages
Japanese (ja)
Inventor
節男 木下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kinoshita Giken Corp
Original Assignee
Kinoshita Giken Corp
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 by Kinoshita Giken Corp filed Critical Kinoshita Giken Corp
Priority to JP1176591U priority Critical patent/JPH0520806U/en
Publication of JPH0520806U publication Critical patent/JPH0520806U/en
Pending legal-status Critical Current

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  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

(57)【要約】 【目的】ホルダー本体に対するチップの着脱が簡単にで
き、作業中におけるチップの緩みのない安定性も高いバ
イトホルダーのチップ固定構造を提供する。 【構成】ホルダー本体1 先端に形設したチップ座2 に着
脱自在にチップ3 を固定する構造であって、基部に頭部
7 を、先端部に凹溝を周設して形成した押当面8を有
し、チップ3 に貫設した孔4 からホルダー本体1 に設け
たピン挿入孔9 に挿入される固定ピン6と、ピン挿入孔9
に向けてホルダー本体上面から傾斜して設けたネジ孔1
0に螺装され、先端を前記押当面8 に臨ませた押えねじ1
1を備えたことを特徴とするバイトホルダーのチップ固
定構造である。
(57) [Abstract] [Purpose] To provide a tip fixing structure for a bite holder, in which the tip can be easily attached to and detached from the holder body, and the tip is not loosened during the work, and the stability is high. [Structure] The holder body 1 has a structure in which the tip 3 is detachably fixed to the tip seat 2 formed at the tip of the holder body, and the head is attached to the base.
7 has a pressing surface 8 formed by surrounding a concave groove at the tip, and a fixing pin 6 that is inserted from the hole 4 penetrating the chip 3 into the pin insertion hole 9 provided in the holder body 1, Pin insertion hole 9
Screw hole that is inclined from the top of the holder body toward
Presser screw 1 that is screwed into 0 and has its tip facing the pressing surface 1
The tip fixing structure of the bite holder is characterized by including 1.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、ホルダー本体先端に着脱自在に固定されるチップの固定構造に関 する。 The present invention relates to a chip fixing structure that is detachably fixed to the tip of a holder body.

【0002】[0002]

【従来の技術】[Prior Art]

一般旋削加工に用いられるバイトホルダーとして、ホルダー本体先端に形設し たチップ座にセラミック製(超高圧焼結体)からなる平面視における形状が多角 形状(例えば、三角または四角形状)のチップを着脱自在に固定し、ホルダー本 体に対するチップの設定位置を変更してチップの各角部分に形成した切刃を順番 に使用するスローアウエイ式のバイトホルダーが汎用されている。 As a bite holder used for general turning, a chip seat formed at the tip of the holder body is made of ceramic (ultra high pressure sintered body) and has a polygonal shape (for example, triangular or quadrangular) in plan view. The throwaway type bite holder is widely used, which is detachably fixed, and the setting position of the tip with respect to the holder body is changed to sequentially use the cutting edges formed at each corner of the tip.

【0003】 この種のバイトホルダーにおいて、ホルダー本体に対するチップの固定には、 クランプオン方式、レバー方式およびボルト方式等があるが、クランプオン方式 とレバー方式のものは、いずれも構造的に複雑で部品点数を多くして高価なもの である。これに対してボルト方式のものは、チップに貫設した孔に固定ボルトを 挿通してこれをホルダー本体に直接に螺合させる等の構造を採用しているため、 構造的に簡単で上述のクランプオン方式やレバー方式に見られる欠点を解消でき たものであると言える。In this type of bite holder, there are a clamp-on method, a lever method, a bolt method and the like for fixing the tip to the holder body. However, both the clamp-on method and the lever method are structurally complicated. It is expensive due to the large number of parts. On the other hand, the bolt type adopts a structure in which a fixing bolt is inserted into a hole penetrating the chip and is screwed directly to the holder body. It can be said that the drawbacks of the clamp-on method and the lever method have been eliminated.

【0004】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

ところが、ボルト方式のものは、固定ボルトの締め付けによってチップを直接 的にホルダー本体に固定するため、旋削加工中にチップの緩みがないように確り したチップの固定関係を維持する上から、固定ボルトとホルダー本体との螺合長 さをある程度長くして締め付け力を安定させることが求められる。 However, in the bolt type, since the insert is directly fixed to the holder body by tightening the fixing bolt, in order to maintain a secure chip fixing relationship so as not to loosen the insert during turning, the fixing bolt It is required to lengthen the screwing length between the holder and the holder body to some extent to stabilize the tightening force.

【0005】 従って、構造的には簡単であるが、チップを外してホルダー本体に対する設定 位置を変更したり、損耗したチップを交換したりする時に、固定ボルトを着脱す るのに手間が掛かる難点がある。Therefore, the structure is simple, but it is troublesome to attach and detach the fixing bolt when the tip is removed to change the setting position with respect to the holder body or when the worn tip is replaced. There is.

【0006】 この考案は上述の点に鑑みなされたものであって、チップの着脱が簡単にでき て作業性を向上したバイトホルダーのチップ固定構造を提供することを目的とす る。The present invention has been made in view of the above points, and an object of the present invention is to provide a tip fixing structure for a bite holder that allows easy attachment / detachment of the tip and improves workability.

【0007】[0007]

【課題を解決するための手段】[Means for Solving the Problems]

上記の目的を達成するためのこの考案の要旨とするところは、ホルダー本体先 端に形設したチップ座に着脱自在にチップを固定する構造であって、基部に頭部 を、先端部に凹溝を周設して形成した押当面を有し、チップに貫設した孔からホ ルダー本体に設けたピン挿入孔に挿入される固定ピンと、ピン挿入孔に向けてホ ルダー本体上面から傾斜して設けたネジ孔に螺装され、先端を前記押当面に臨ま せた押えねじを備えたことを特徴とするバイトホルダーのチップ固定構造にある 。 The gist of the present invention for achieving the above-mentioned object is a structure in which a tip is detachably fixed to a tip seat formed at the front end of a holder body, and a head is provided at the base and a recess is provided at the tip. It has a pressing surface that is formed by surrounding a groove, and a fixing pin that is inserted into a pin insertion hole that is provided in the holder body from a hole that penetrates the tip, and an inclination from the top surface of the holder body toward the pin insertion hole The tip fixing structure of the bite holder is characterized in that it is provided with a cap screw screwed into a screw hole provided so that its tip faces the pressing surface.

【0008】[0008]

【作用】[Action]

チップの固定には、押えねじをねじ込んで固定ピンをピン挿入孔内に引き込ん で行われ、押えねじの緩みがない限りチップの固定関係は確り維持される。 The tip is fixed by screwing the cap screw and pulling the fixing pin into the pin insertion hole, and the tip fixing relationship is maintained securely unless the cap screw is loosened.

【0009】 チップを外す時は、押えねじを緩めてその先端部をピン挿入孔から没却させる と固定ピンは引き抜き可能となる。When removing the chip, the fixing pin can be pulled out by loosening the cap screw and retracting the tip of the chip from the pin insertion hole.

【0010】[0010]

【実施例】【Example】

以下、この考案の実施例を図面に基づいて説明する。 An embodiment of the present invention will be described below with reference to the drawings.

【0011】 図1はこの考案の要部の平面図、図2は図1A−A線における縦断面図である 。FIG. 1 is a plan view of an essential part of the present invention, and FIG. 2 is a vertical sectional view taken along the line AA of FIG.

【0012】 図において、1 は先端上面にチップ座2 を形成したホルダー本体である。3 は チップ座2 に固定されるチップで、孔4 を有し、各角部分に切刃5 を形成した周 知の超硬合金製スローアウエイチップである。6 はチップ3 を固定する固定ピン で、基端に頭部7 を、先端部に凹溝を周設して押当面8 を形成したもので、チッ プ3 の孔4 に挿通して頭部7 下面が孔上部に形設したテーパ部に係合し、孔4 と の間には殆ど隙間がなく自由に抜き差し可能な太さのものである。9 はチップ座 2 においてホルダー本体1 に設けられ、固定ピン6 が挿入されるピン挿入孔で、 固定ピン6 との間には僅かな隙間を形成する径とされる。なお、実施例のピン挿 入孔9 はチップ座2 からホルダー本体下端面に貫通している。10はピン挿入孔9 の中間部に向けてホルダー本体上面から前方下向きに傾斜して設けたねじ孔、11 はこのねじ孔10に螺装した押えねじで、この押えねじ11の先端12をピン挿入孔9 内において固定ピン6 の押当面8 に臨ませている。In the figure, 1 is a holder main body having a tip seat 2 formed on the upper surface of the tip. Reference numeral 3 is a tip fixed to the tip seat 2, which is a well-known cemented carbide throwaway tip having holes 4 and cutting edges 5 formed at each corner. 6 is a fixing pin for fixing the tip 3, which has a head 7 at the base end and a pressing groove 8 at the tip to form a pressing surface 8, which is inserted into the hole 4 of the chip 3 to insert the head. 7 The thickness of the bottom surface is such that it engages with the taper formed in the upper part of the hole and there is almost no gap between it and the hole 4 so that it can be freely inserted and removed. Reference numeral 9 denotes a pin insertion hole which is provided in the holder body 1 in the chip seat 2 and into which the fixing pin 6 is inserted, and has a diameter which forms a slight gap with the fixing pin 6. The pin insertion hole 9 of the embodiment penetrates from the tip seat 2 to the lower end surface of the holder body. 10 is a screw hole that is provided by inclining forward and downward from the upper surface of the holder body toward the middle of the pin insertion hole 9, and 11 is a cap screw screwed into this screw hole 10, and the tip 12 of this cap screw 11 is pinned. It faces the pressing surface 8 of the fixing pin 6 in the insertion hole 9.

【0013】 なお、図中13はチップ座2 とチップ3 との間に介装したシムシートで、チップ 3 と一緒に取り扱われるもので、チップ座2 の保護とチップ3 が欠損した時にワ ークに生じる切り残し部分によってホルダー本体1 が損傷するのを防止するため のものである。Reference numeral 13 in the drawing denotes a shim sheet interposed between the tip seat 2 and the tip seat 3, which is handled together with the tip seat 3 and protects the tip seat seat 2 and works when the tip 3 is damaged. The purpose of this is to prevent the holder body 1 from being damaged by the uncut portion that occurs in the.

【0014】 上記構成において、押えねじ11を締め付け方向にねじ込むと、押えねじ先端12 がピン挿入孔9 内に突出して固定ピン6 の押当面8 に当接して固定ピン6 をピン 挿入孔9 内に引き込んでチップ3 をシムシート13と共にチップ座2 に圧着させる 。同時に、押当面8 に対する押えねじ先端12の押当点は、ホルダー本体1 から見 て固定ピン6 の後側にあるので、固定ピン6 の先端部にはピン挿入孔9 との隙間 で前方横向きの押圧力が作用して固定ピン6 が傾き傾向となり、固定ピン6 基部 のチップ3 をチップ座側壁側に押圧してチップ3 を安定させる。In the above structure, when the cap screw 11 is screwed in the tightening direction, the tip 12 of the cap screw projects into the pin insertion hole 9 and abuts against the pressing surface 8 of the fixing pin 6 to fix the fixing pin 6 in the pin insertion hole 9. And insert the tip 3 together with the shim sheet 13 into the tip seat 2. At the same time, the pressing point of the cap screw tip 12 against the pressing surface 8 is on the rear side of the fixing pin 6 as viewed from the holder body 1, so the tip of the fixing pin 6 faces sideways forward in the gap with the pin insertion hole 9. The fixing pin 6 tends to incline due to the pressing force of, and the tip 3 of the base of the fixing pin 6 is pushed toward the side wall of the tip seat to stabilize the tip 3.

【0015】 また、押えねじ11はねじ孔10に対して常時螺装状態で使用されるので、ねじ孔 10とは充分な螺合長さを採ることができ、旋削加工中に緩みを生じることがなく 、強力に締め付けてもねじ部には無理が掛からず押えねじ11を破損するおそれも ない。Further, since the holding screw 11 is always used in a screwed state with respect to the screw hole 10, a sufficient screwing length with the screw hole 10 can be adopted, and loosening occurs during turning. Even if it is tightened firmly, the screw part will not be overloaded and the captive screw 11 will not be damaged.

【0016】 図3はこの考案の他の実施例を示す固定ピンの正面図である。FIG. 3 is a front view of a fixing pin showing another embodiment of the present invention.

【0017】 この実施例の固定ピン6 は、ピン挿入孔9 に挿入されて部分で固定ピン6 上部 に大径部14を膨出状に周設したものである。The fixed pin 6 of this embodiment has a large-diameter portion 14 bulged around the upper portion of the fixed pin 6 in a portion inserted into the pin insertion hole 9.

【0018】 この大径部14は、押えねじ11のねじ込みでピン挿入孔9 壁に圧着させられてピ ン挿入孔9 内における固定ピン6 の傾き支点とされるもので、チップ3 をより強 力にチップ座側壁側に押圧するためのものである。This large-diameter portion 14 is used as an inclination fulcrum of the fixing pin 6 in the pin insertion hole 9 by being crimped to the wall of the pin insertion hole 9 by screwing in the holding screw 11, so that the tip 3 is stronger. This is for pressing the tip seat side wall side.

【0019】 なお、上記する固定ピン6 に周設する大径部14に代えて、ピン挿入孔9 を加工 してその壁部に固定ピン6 の傾き支点となる部分を設けてもよい。Instead of the large-diameter portion 14 provided around the fixing pin 6 described above, the pin insertion hole 9 may be machined and a wall portion thereof may be provided with a portion serving as a tilt fulcrum of the fixing pin 6.

【0020】[0020]

【効果】【effect】

以上説明したようにこの考案によれば、次のような効果を奏する。 As described above, the present invention has the following effects.

【0021】 (1) チップの位置変更や交換に当たってのチップの着脱には、ねじ孔に常時 螺装状態にある押えねじを所定の範囲を進退動させるだけでよいから、作業が簡 単で作業性を向上する。(1) When changing the position of the tip or attaching or detaching the tip for replacement, it is only necessary to move the holding screw, which is always screwed into the screw hole, back and forth within a predetermined range, so the work is easy. Improve sex.

【0022】 (2) チップを固定するための部材は、ねじ孔に螺装した押えねじと、チップ と共にホルダー本体から着脱される固定ピンの2つだけであるから、構造が簡単 で安価に提供できる。(2) Since there are only two members for fixing the chip, the cap screw that is screwed into the screw hole and the fixing pin that is detached from the holder body together with the chip, the structure is simple and the cost is low. it can.

【0023】 (3) ねじ孔に対する押えねじの螺合長さを充分に採ることができるから、安 定性が高く強力に締め付けも押えねじを破損するおそれもない。(3) Since the screwing length of the cap screw with respect to the screw hole can be sufficiently set, stability is high and there is no possibility of tightening strongly and damaging the cap screw.

【図面の簡単な説明】[Brief description of drawings]

【図1】この考案の要部の平面図である。FIG. 1 is a plan view of a main part of the present invention.

【図2】図1のA−A線における縦断面図である。FIG. 2 is a vertical sectional view taken along the line AA of FIG.

【図3】この考案の他の実施例を示す固定ピンの正面図
である。
FIG. 3 is a front view of a fixing pin showing another embodiment of the present invention.

【符号の説明】 1 …ホルダー本体 2 …チップ座 3 …チップ 4 …孔 5 …切刃 6 …固定ピン 7 …頭部 8 …押当面 9 …ピン挿入孔 10…ねじ孔 11…押えねじ 12…ねじ先端 13…シムシート 14…大径部[Explanation of symbols] 1 ... Holder body 2 ... Tip seat 3 ... Tip 4 ... Hole 5 ... Cutting edge 6 ... Fixing pin 7 ... Head 8 ... Pressing surface 9 ... Pin insertion hole 10 ... Screw hole 11 ... Press screw 12 ... Screw tip 13 ... Shim sheet 14 ... Large diameter part

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 ホルダー本体先端に形設したチップ座に
着脱自在にチップを固定する構造であって、基部に頭部
を、先端部に凹溝を周設して形成した押当面を有し、チ
ップに貫設した孔からホルダー本体に設けたピン挿入孔
に挿入される固定ピンと、ピン挿入孔に向けてホルダー
本体上面から傾斜して設けたネジ孔に螺装され、先端を
前記押当面に臨ませた押えねじを備えたことを特徴とす
るバイトホルダーのチップ固定構造。
1. A structure in which a chip is detachably fixed to a chip seat formed at the tip of a holder main body, and has a head portion at a base portion and a pressing surface formed by surrounding a concave groove at the tip portion. , The fixing pin inserted into the pin insertion hole provided in the holder main body from the hole penetrating the chip, and the screw hole inclined from the upper surface of the holder main body toward the pin insertion hole, and the tip is pressed against the pressing surface. The tip fixing structure of the bite holder, which is equipped with a cap screw facing the.
JP1176591U 1991-03-06 1991-03-06 Chip fixing structure for bite holder Pending JPH0520806U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1176591U JPH0520806U (en) 1991-03-06 1991-03-06 Chip fixing structure for bite holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1176591U JPH0520806U (en) 1991-03-06 1991-03-06 Chip fixing structure for bite holder

Publications (1)

Publication Number Publication Date
JPH0520806U true JPH0520806U (en) 1993-03-19

Family

ID=11787075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1176591U Pending JPH0520806U (en) 1991-03-06 1991-03-06 Chip fixing structure for bite holder

Country Status (1)

Country Link
JP (1) JPH0520806U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109994978A (en) * 2019-04-30 2019-07-09 宸逸电力科技有限公司 A kind of self-locking type socket-clevis eye
JP6838674B1 (en) * 2020-05-29 2021-03-03 株式会社タンガロイ Cutting tools
CN113506382A (en) * 2021-06-07 2021-10-15 国网浙江省电力有限公司金华供电公司 Machine room remote intelligent inspection system based on big data cloud platform

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62259701A (en) * 1986-05-02 1987-11-12 ジ−テイ−イ−・ヴアレロン・コ−ポレ−シヨン Pin lock insert holder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62259701A (en) * 1986-05-02 1987-11-12 ジ−テイ−イ−・ヴアレロン・コ−ポレ−シヨン Pin lock insert holder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109994978A (en) * 2019-04-30 2019-07-09 宸逸电力科技有限公司 A kind of self-locking type socket-clevis eye
CN109994978B (en) * 2019-04-30 2024-06-21 宸逸电力科技有限公司 Self-locking bowl head hanging plate
JP6838674B1 (en) * 2020-05-29 2021-03-03 株式会社タンガロイ Cutting tools
CN113506382A (en) * 2021-06-07 2021-10-15 国网浙江省电力有限公司金华供电公司 Machine room remote intelligent inspection system based on big data cloud platform

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