JP2005034946A - Tapering work method and device therefor - Google Patents

Tapering work method and device therefor Download PDF

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JP2005034946A
JP2005034946A JP2003274136A JP2003274136A JP2005034946A JP 2005034946 A JP2005034946 A JP 2005034946A JP 2003274136 A JP2003274136 A JP 2003274136A JP 2003274136 A JP2003274136 A JP 2003274136A JP 2005034946 A JP2005034946 A JP 2005034946A
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guide
die
workpiece
taper
guides
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JP3893119B2 (en
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Satoshi Iizuka
智 飯塚
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IIZUKA SEISAKUSHO KK
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IIZUKA SEISAKUSHO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tapering work method, and a device therefor, capable of easily, surely, and inexpensively performing tapering work. <P>SOLUTION: This tapering work method with a press machine is characterized by cutting off a cutoff object part of a work 1, by obliquely moving a die 5 along a guide surface 28, by lowering the die 5 energized by a spring toward a side surface of guides 24 and 25 along the side surface of the guides 24 and 25, by positioning the guides 24 and 25 having the side surface becoming the inclined guide surface 28 by approaching or contacting with the work 1 being a work object. A taper shape is formed by cutting off an unnecessary part by the press machine. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明はテーパ加工方法及びその装置に関するものである。   The present invention relates to a taper machining method and an apparatus therefor.

ドラムブレーキ内に組み込むパーキングブレーキにおいては、図5に示す形状のアジャスターピン1を用いたアジャスターが使用されており、ブレーキシュー側の部材(シューウェブ)がアジャスターピン1の頭部10の溝11に係合する。   In the parking brake incorporated in the drum brake, an adjuster using the adjuster pin 1 having the shape shown in FIG. 5 is used, and a member (shoe web) on the brake shoe side is formed in the groove 11 of the head 10 of the adjuster pin 1. Engage.

このようなアジャスターピン1は、その強度及びコストの点で冷間鍛造で製造されているが、頭部10の周面における溝11が開口する部分が傾斜面となっているテーパ状のものが要求されている時、鍛造のみで行うとすると、溝11の幅が頭部10の直径に比して大きいこともあって、精度及び表面粗さの点で問題が生じる。このために、従来は頭部10の両側に傾斜面を有するアジャスターピン1を鍛造によって製造し、その後、頭部10に溝11を切削工具による切削で形成していた。
特開2001−079629号公報
Such an adjuster pin 1 is manufactured by cold forging in view of its strength and cost, but a tapered one in which a portion where the groove 11 is opened on the peripheral surface of the head 10 is an inclined surface. If only the forging is performed when required, the width of the groove 11 is larger than the diameter of the head 10, which causes a problem in terms of accuracy and surface roughness. For this purpose, conventionally, the adjuster pin 1 having inclined surfaces on both sides of the head 10 is manufactured by forging, and then the groove 11 is formed in the head 10 by cutting with a cutting tool.
JP 2001-079629 A

この場合、精度及び表面粗さの点で問題が生じることはないが、溝11を切削によって形成することからコスト面で大きな問題がある。   In this case, there is no problem in terms of accuracy and surface roughness, but since the groove 11 is formed by cutting, there is a significant problem in terms of cost.

一方、溝11を頭部10に有するアジャスターピン1(図4に示すもの)は鍛造で形成することができており、この頭部10の両側面に傾斜面を形成するテーパ加工を低コストで且つ精度良く行うことができれば、上記の各問題点を解消することができることから、精度及びコストの点が優れているテーパ加工を行うことができるテーパ加工方法及びその装置が求められている。   On the other hand, the adjuster pin 1 (shown in FIG. 4) having the groove 11 in the head portion 10 can be formed by forging, and taper processing for forming inclined surfaces on both side surfaces of the head portion 10 can be performed at low cost. If it can be performed with high accuracy, the above-mentioned problems can be solved. Therefore, a taper processing method and apparatus capable of performing taper processing with excellent accuracy and cost are required.

本発明はこのような点に鑑みなされたものであって、その目的とするところはテーパ加工を容易に且つ確実に低コストで行うことができるテーパ加工方法及びその装置を提供するにある。   The present invention has been made in view of the above points, and an object of the present invention is to provide a taper processing method and apparatus capable of performing taper processing easily and surely at low cost.

しかして本発明に係るテーパ加工方法は、プレス機によるテーパ加工方法であって、側面が傾斜したガイド面となっているガイドを加工対象となるワークに近接もしくは接触させて位置させ、上記ガイドの側面に向けてばね付勢されているダイをガイドの側面に沿って下降させることで上記ガイド面に添った斜め移動をダイに行わせて該ダイによってワークの切除対象部を切除することに特徴を有している。プレス機による不要部分の切除でテーパ状とするものである。   Accordingly, the taper processing method according to the present invention is a taper processing method using a press machine, and a guide having a side surface inclined is positioned close to or in contact with a workpiece to be processed. The die that is spring-biased toward the side surface is lowered along the side surface of the guide to cause the die to move obliquely along the guide surface, and the part to be cut of the workpiece is cut by the die. have. A taper is formed by cutting away unnecessary portions with a press.

また本発明に係るテーパ加工装置は、加工対象となるワークを保持する下型と、ワークに近接もしくは接触させて配設され且つ側面が傾斜したガイド面となっているガイドと、下型に対して下降駆動されるとともに上記ガイドの側面に向けてばね付勢されて下降駆動時にガイドのガイド面に添った斜め移動を行ってワークの部分的切除を行うダイを有している上型とを具備していることに特徴を有している。実質、ガイドとダイのみでテーパ状加工を行うことができる。   Further, the taper machining apparatus according to the present invention includes a lower mold that holds a workpiece to be machined, a guide that is disposed close to or in contact with the workpiece and has a guide surface that is inclined on the side, and a lower mold. An upper die having a die that is driven to move downward and is spring-biased toward the side surface of the guide and performs a partial excision by moving obliquely along the guide surface of the guide during the downward drive. It is characterized by having. In fact, taper processing can be performed only with a guide and a die.

この時、下端がワークとの当接部となっているガイドは上型に上下にスライド自在に且つ下方に向けてばね付勢されて装着されていると、ガイドの保持を容易に行うことができる。   At this time, if the guide whose lower end is in contact with the workpiece is mounted on the upper die so as to be slidable up and down and spring-biased downward, the guide can be easily held. it can.

本発明に係るテーパ加工方法によれば、ガイドの側面の傾斜したガイド面に添った斜め移動をダイに行わせてワークの切除対象部を切除してテーパ状とするために、切削によるテーパ加工に比して、時間及びコストを大きく削減することができる。   According to the taper processing method according to the present invention, the taper processing by cutting is performed in order to make the die to be moved obliquely along the inclined guide surface of the guide and to cut the part to be cut of the workpiece into a taper shape. Compared to the above, time and cost can be greatly reduced.

また本発明に係るテーパ加工装置によれば、実質、ガイドとダイのみでテーパ状加工を行うことができるものであり、テーパ部分の角度などはガイドのガイド面の傾斜面で決まるために、角度の変更などにもガイド面の角度が異なるガイドを用意するだけで応ずることができる。   Further, according to the taper processing apparatus according to the present invention, the taper processing can be substantially performed only by the guide and the die, and the angle of the taper portion is determined by the inclined surface of the guide surface of the guide. It is possible to respond to such changes by simply preparing guides with different guide surface angles.

図1〜図3は図4に示したアジャスターピン1の頭部10にテーパ加工を行うための加工型2を示しており、プレス機に装着されて使用される該加工型2における下型21には、アジャスターピン1の軸部13が差し込まれる孔30が上面中央に開口するホルダー3が設けられて、上記軸部13を孔30に差し込んだ時、アジャスターピン1はその頭部10をホルダー3上に載せた状態で保持される。   1 to 3 show a processing die 2 for tapering the head 10 of the adjuster pin 1 shown in FIG. 4, and a lower die 21 in the processing die 2 used by being mounted on a press machine. Is provided with a holder 3 in which a hole 30 into which the shaft portion 13 of the adjuster pin 1 is inserted opens in the center of the upper surface, and when the shaft portion 13 is inserted into the hole 30, the adjuster pin 1 holds its head 10. 3 is held on the surface.

一方、加工型2における上型22は、主ブロック23と主ブロック23の下面に左右にスライド自在に配された一対のダイ5,5と、ダイ5,5間に配されたガイド24,25,25と、上記両ダイ5,5を互いに接近させる方向に付勢しているばねブロック26と、主ブロック23に対して上下にスライド自在となっている上記ガイド24,25,25を下方に向けて付勢するばねブロック27とからなるもので、相互に連結固定されてる上記ガイド24,25,25の両側面に上記ダイ5,5の側面が夫々接しているとともに、これらガイド24,25,25の上記両側面の下部がアジャスターピン1の頭部10に施すテーパの角度に合致する傾斜を有するガイド面28となっている。   On the other hand, the upper die 22 in the working die 2 is composed of a main block 23, a pair of dies 5 and 5 slidably disposed on the lower surface of the main block 23, and guides 24 and 25 disposed between the dies 5 and 5. , 25, the spring block 26 urging the two dies 5, 5 toward each other, and the guides 24, 25, 25, which are slidable up and down with respect to the main block 23, downward. The side surfaces of the dies 5 and 5 are in contact with both side surfaces of the guides 24, 25 and 25 which are connected and fixed to each other. , 25 are guide surfaces 28 having slopes that match the angle of the taper applied to the head 10 of the adjuster pin 1.

ばねブロック27による付勢で下方に突出した状態にあるガイド24,25,25の両側面上部に左右一対のダイ5,5がばねブロック26,26による付勢で接している状態が通常状態となっている上型22を、下型21のホルダー3上にセットされたアジャスターピン1の頭部10に向けて所要の圧力で下降させた時、ダイ5よりも下方に突出した状態にあるガイド24,25,25のうち、ガイド24がアジャスターピン1の頭部10に施されている溝11内に入ってガイド24の下端が溝11の底面に接するとともに、ガイド25,25がアジャスターピン1の頭部10の両サイドに位置する。   The normal state is a state in which the pair of left and right dies 5, 5 are in contact with the upper portions of both sides of the guides 24, 25, 25, which are projected downward by the urging by the spring block 27, by the urging by the spring blocks 26, 26. When the upper die 22 is lowered at a required pressure toward the head 10 of the adjuster pin 1 set on the holder 3 of the lower die 21, the guide protrudes downward from the die 5. 24, 25, 25, the guide 24 enters the groove 11 formed on the head 10 of the adjuster pin 1, the lower end of the guide 24 contacts the bottom surface of the groove 11, and the guides 25, 25 are adjusted by the adjuster pin 1. It is located on both sides of the head 10.

この状態から更に上型22を下降させれば、ばねブロック27の付勢に抗して相対的に上昇するガイド24,25,25の両側面に沿ってダイ5,5が下降し、ガイド24,25,25の傾斜したガイド面28,28の部分に達した時点からダイ5,5はばねブロック26,26の付勢に抗して左右に広がりつつ下降して、アジャスターピン5の頭部10の両サイドを斜めに切除してテーパ状とする。この時、ガイド24はダイ5のガイドを行うだけでなく、上記切除時に溝11の断面形状が損なわれてしまうことを防ぐ。   If the upper die 22 is further lowered from this state, the dies 5, 5 are lowered along both side surfaces of the guides 24, 25, 25 that are relatively lifted against the bias of the spring block 27, and the guide 24 , 25, 25 from the point where the inclined guide surfaces 28, 28 are reached, the dies 5, 5 descend against the urging of the spring blocks 26, 26 while descending left and right, and the head of the adjuster pin 5 Both sides of 10 are cut obliquely to be tapered. At this time, the guide 24 not only guides the die 5 but also prevents the cross-sectional shape of the groove 11 from being damaged during the excision.

ガイド24とガイド25の下端位置が異なるのは、アジャスターピン1の頭部10の溝11の底部よりも更に低いところまで切除を行うためであり、切除が溝11の底部よりも下方に至らない場合は、ガイド24,25は同じ形状で良く、更にはガイド24だけでガイド25がなくとも切除が可能である。また、頭部10が溝11を有していないものである時には、一対のガイド25,25でダイ5,5をガイドすることで、やはり頭部10をテーパ状に加工することができる。また、ここではガイド24がアジャスターピン1に当接することから、ガイド24,25,25を上型22に上下にスライド自在に且つ下方に向けてばね付勢した状態で取り付けているが、ガイド24,25,25が下型21に当接するようにしている時も、上述のようにして上型22に取り付けておくことができる。もちろん、上型22とは別にアジャスターピン1付近にセットされるものであってもよい。   The lower end positions of the guide 24 and the guide 25 are different because the cutting is performed to a position lower than the bottom of the groove 11 of the head 10 of the adjuster pin 1, and the cutting does not reach below the bottom of the groove 11. In this case, the guides 24 and 25 may have the same shape, and further, only the guide 24 can be excised without the guide 25. Further, when the head 10 does not have the groove 11, the head 10 can be processed into a tapered shape by guiding the dies 5, 5 with the pair of guides 25, 25. Here, since the guide 24 abuts on the adjuster pin 1, the guides 24, 25, and 25 are attached to the upper mold 22 so as to be slidable up and down and spring-biased downward. , 25, 25 can be attached to the upper die 22 as described above even when the lower die 21 is in contact with the lower die 21. Of course, it may be set near the adjuster pin 1 separately from the upper die 22.

いずれにしても、アジャスターピン1の頭部10に対するテーパ状加工をプレス機で行うことができるものであり、切削工具による切削でのテーパ状加工に比して、時間とコストとを大きく削減することができる。   In any case, the taper processing of the head 10 of the adjuster pin 1 can be performed by a press machine, and the time and cost are greatly reduced as compared with the taper processing by cutting with a cutting tool. be able to.

なお、上記テーパ加工に供する図4に示す状態のアジャスターピン1は、図6に示すように、パンチ41とダイ42とによる鍛造加工で頭部10に溝11が形成されたものが用いられるものであり、軸部13も同様に鍛造(絞り)で形成されていることから、図5に示す形態のアジャスターピン1をきわめて低いコストで製造することができるものであり、また精度及び表面粗さも良好なものを得ることができる。   The adjuster pin 1 in the state shown in FIG. 4 to be subjected to the taper processing is one in which the groove 11 is formed in the head 10 by forging with a punch 41 and a die 42 as shown in FIG. Since the shaft portion 13 is similarly formed by forging (drawing), the adjuster pin 1 having the form shown in FIG. 5 can be manufactured at an extremely low cost, and the accuracy and surface roughness are also improved. A good one can be obtained.

ここではアジャスターピン1の頭部10のテーパ状加工の場合を例にあげたが、加工対象であるワークがアジャスターピンに限定されるものではなく、他の同様のテーパ状加工を必要とするものに適用することができるのはもちろんである。   Here, the case of taper-shaped machining of the head 10 of the adjuster pin 1 is taken as an example, but the workpiece to be machined is not limited to the adjuster pin, and other similar taper-shaped machining is required. Of course it can be applied to.

本発明の実施の形態の一例の縦断面図である。It is a longitudinal cross-sectional view of an example of embodiment of this invention. 同上の横断面図である。It is a cross-sectional view same as the above. (a)(b)は同上の斜視図である。(a) (b) is a perspective view same as the above. (a)(b)はテーパ加工前のアジャスターピンの正面図と側面図である。(a) and (b) are the front view and side view of an adjuster pin before taper processing. (a)(b)はテーパ加工後のアジャスターピンの正面図と側面図である。(a) and (b) are the front view and side view of an adjuster pin after a taper process. 図4に示したアジャスターピンの製造のための鍛造加工状態を示す断面図である。It is sectional drawing which shows the forge processing state for manufacture of the adjuster pin shown in FIG.

符号の説明Explanation of symbols

1 アジャスターピン
2 加工型
3 ホルダー
5 ダイ
10 頭部
21 下型
22 上型
24 ガイド
25 ガイド
28 ガイド面
DESCRIPTION OF SYMBOLS 1 Adjuster pin 2 Work type 3 Holder 5 Die 10 Head 21 Lower mold 22 Upper mold 24 Guide 25 Guide 28 Guide surface

Claims (3)

プレス機によるテーパ加工方法であって、側面が傾斜したガイド面となっているガイドを加工対象となるワークに近接もしくは接触させて位置させ、上記ガイドの側面に向けてばね付勢されているダイをガイドの側面に沿って下降させることで上記ガイド面に添った斜め移動をダイに行わせて該ダイによってワークの切除対象部を切除することを特徴とするテーパ加工方法。   A taper machining method using a press machine, in which a guide whose side surface is inclined is positioned close to or in contact with a workpiece to be machined, and a die that is spring-biased toward the side surface of the guide A taper machining method, wherein the die is caused to move downward along the side surface of the guide to cause the die to move obliquely along the guide surface, and the part to be cut of the workpiece is cut by the die. 加工対象となるワークを保持する下型と、ワークに近接もしくは接触させて配設され且つ側面が傾斜したガイド面となっているガイドと、下型に対して下降駆動されるとともに上記ガイドの側面に向けてばね付勢されて下降駆動時にガイドのガイド面に添った斜め移動を行ってワークの部分的切除を行うダイを有している上型とを具備していることを特徴とするテーパ加工装置。   A lower die for holding a workpiece to be processed, a guide that is disposed in proximity to or in contact with the workpiece and has a guide surface that is inclined, and a side surface of the guide that is driven downward with respect to the lower die. And an upper die having a die for partially cutting the workpiece by performing an oblique movement along the guide surface of the guide during downward driving. Processing equipment. 下端がワークもしくは下型との当接部となっているガイドは上型に上下にスライド自在に且つ下方に向けてばね付勢されて装着されていることを特徴とする請求項2記載のテーパ加工装置。   3. A taper according to claim 2, wherein the guide whose lower end is in contact with the workpiece or the lower die is mounted on the upper die so as to be slidable up and down and spring-biased downward. Processing equipment.
JP2003274136A 2003-07-14 2003-07-14 Taper processing method and apparatus Expired - Lifetime JP3893119B2 (en)

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JP5578747B1 (en) * 2013-09-10 2014-08-27 株式会社富士精機 Taper processing equipment

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