JP2009039723A - Drawing device - Google Patents

Drawing device Download PDF

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JP2009039723A
JP2009039723A JP2007204978A JP2007204978A JP2009039723A JP 2009039723 A JP2009039723 A JP 2009039723A JP 2007204978 A JP2007204978 A JP 2007204978A JP 2007204978 A JP2007204978 A JP 2007204978A JP 2009039723 A JP2009039723 A JP 2009039723A
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roller
guide pin
tip
radial
cutting
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JP4598035B2 (en
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Hiroshi Kojima
宏 小島
Naoto Hatake
直人 畠
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Nippon Spindle Mfg Co Ltd
日本スピンドル製造株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a drawing device with which a guide pin of a supporting member on which a reversing mechanism is arranged is changed easily and simply. <P>SOLUTION: In a drawing device which is provided with a drawing roller mounting base 13 for supporting a drawing roller R and a cutting roller C slidably in the radial direction at the tip of a spindle 10 and also a cam plate 18 on which a spiral groove 18a for inserting a guide pin 17a projected from the supporting member 17 for supporting the drawing roller and the cutting roller is carved on the tip of a cam shaft 19 which is fit and inserted concentrically with the spindle and in which either of the drawing roller and the cutting roller is made to reverse the moving direction of the guide pin and the moving direction of the roller by a reversing mechanism and both rollers are moved in the radial direction by the spiral groove, the reversing mechanism is composed of a rack carved on the top of a guiding slider, a rack carved on the bottom of a roller slider and a pinion arranged freely rotatably between both the racks. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、絞り加工装置に関し、特に、カム板に刻設した1本の渦巻き状溝で2種類のローラの移動方向を逆方向に動かすための逆行機構の改良に関するものである。   The present invention relates to a drawing apparatus, and more particularly to an improvement in a retrograde mechanism for moving two types of rollers in opposite directions with a single spiral groove formed on a cam plate.

従来、パイプ先端等の円筒部材の絞り加工を行う絞り加工装置として、本出願人等が先に提案した、回転する主軸先端に取り付けた絞りローラ取付台に半径方向に摺動可能に支持し、これにより固定した被加工用パイプの先端に絞り加工を施す、絞り加工装置が提案されている(例えば、特許文献1参照)。   Conventionally, as a drawing device for drawing a cylindrical member such as a pipe tip, the applicant proposed previously, and supported by a drawing roller mounting base attached to the rotating spindle tip so as to be slidable in the radial direction, There has been proposed a drawing device that performs drawing on the tip of the pipe to be machined thus fixed (see, for example, Patent Document 1).

図8〜図16に、従来の絞り加工装置の一実施例を示す。
この絞り加工装置3は、主軸機構2と、この主軸機構2に対向して被加工用パイプを支持する支持機構(図示省略)とを備え、主軸機構2の主軸筐体11は、基台4上に形成した案内レール5上を駆動モータ6と駆動螺子7によって図例左右方向に移行可能に載置されている。
8 to 16 show an embodiment of a conventional drawing apparatus.
The drawing device 3 includes a main shaft mechanism 2 and a support mechanism (not shown) that supports the pipe to be processed so as to face the main shaft mechanism 2, and the main shaft housing 11 of the main shaft mechanism 2 includes a base 4. On the guide rail 5 formed above, it is mounted by a drive motor 6 and a drive screw 7 so as to be movable in the left-right direction in the figure.

主軸機構2は、適宜の駆動モータ(図示省略)に連結される駆動プーリPにより駆動され、主軸筐体11にベアリング12を介して支持される主軸10と、この主軸10の先端に設けられるローラ取付台13とを備える。   The spindle mechanism 2 is driven by a driving pulley P connected to an appropriate drive motor (not shown), and is supported by a spindle housing 11 via a bearing 12 and a roller provided at the tip of the spindle 10. And a mounting base 13.

このローラ取付台13は、主軸10の先端にフランジ16を介して取り付けられ、絞りローラR及び切断ローラCの支持部材17を半径方向に案内する案内溝14aを備えた主取付台14と、絞りローラR及び切断ローラCを半径方向に移行するための渦巻き状溝18aを備えたカム板18とを主体として構成される。
絞りローラRの支持部材17は、絞りローラRを取り付ける本体部分17bと、該本体部分17bを案内溝14aに保持するためのカバー17cと、渦巻き状溝18a内に突入する案内ピン17aとを備えることによって絞りローラRを半径方向に移行させる。
The roller mounting base 13 is attached to the tip of the main shaft 10 via a flange 16 and includes a main mounting base 14 provided with a guide groove 14a for guiding the support member 17 of the squeezing roller R and the cutting roller C in the radial direction, The cam plate 18 having a spiral groove 18a for moving the roller R and the cutting roller C in the radial direction is mainly constituted.
The support member 17 of the squeezing roller R includes a main body portion 17b to which the squeezing roller R is attached, a cover 17c for holding the main body portion 17b in the guide groove 14a, and a guide pin 17a that protrudes into the spiral groove 18a. As a result, the squeezing roller R is moved in the radial direction.

案内ピン17a及び、後述する切断ローラC移行用の案内ピン51aは、図9に示すように、渦巻き状溝18aに嵌入されており、渦巻き状溝18aは略々270度とし、全周を4等分してそれぞれをα、β、γ、δとしたとき、角度がβ、δとなる部分を同心円部、角度がα、γとなる部分を変形部とし、案内ピン17a、51aが変形部α、γの部分を通過するときに案内ピン17a、51aは、カム板18の半径方向に移動することとなる。   As shown in FIG. 9, the guide pin 17a and a guide pin 51a for shifting to the cutting roller C, which will be described later, are fitted in a spiral groove 18a. The spiral groove 18a is approximately 270 degrees, and the entire circumference is 4 degrees. When equally divided into α, β, γ, and δ, the portions where the angles are β and δ are the concentric circular portions, the portions where the angles are α and γ are the deformed portions, and the guide pins 17a and 51a are the deformed portions. The guide pins 17a and 51a move in the radial direction of the cam plate 18 when passing through the α and γ portions.

主軸10は、中空構造とし、カム板18を先端に取り付けたカム軸19を主軸10内に収納し、主軸10とカム軸19とは、変速機構30を介して係合され、初期位置では図10に示す位置にある絞りローラRは、主取付台14に対して相対的にカム板18が回転(図例、反時計回り)させることによって、図11に示す位置まで半径方向内側に向かって移動し、被加工用パイプの先端を加工するようにしている。   The main shaft 10 has a hollow structure, and a cam shaft 19 having a cam plate 18 attached to the tip is accommodated in the main shaft 10. The main shaft 10 and the cam shaft 19 are engaged via a speed change mechanism 30. The squeezing roller R at the position shown in FIG. 10 is directed radially inward to the position shown in FIG. 11 by rotating the cam plate 18 relative to the main mounting base 14 (in the illustrated example, counterclockwise). It moves so that the tip of the pipe to be processed is processed.

被加工用パイプに挿入されるマンドレル40は、カム軸19内に収納される軸41の先端に配設され、被加工用パイプの加工時に内径(外径)を規制する役割を担っている。   The mandrel 40 inserted into the pipe to be processed is disposed at the tip of the shaft 41 accommodated in the cam shaft 19 and plays a role of regulating the inner diameter (outer diameter) when processing the pipe to be processed.

変速機構30には、撓み噛み合い式駆動伝達装置を用い、その概要は、図8及び図14に示すように、主軸10とカム軸19とにそれぞれ係合される対をなす外輪31、32と、それぞれの外輪内面に形成された歯溝(両者同一歯数とする)に噛合し、かつ歯数の異なる歯形を形成した可撓性の歯車輪33と、この歯車輪33を楕円形に、かつ回動可能に支持し、歯溝とは相対する2箇所において噛合させるウエーブ形成輪34とより構成したものである。   As the speed change mechanism 30, a flexibly meshing type drive transmission device is used. As shown in FIG. 8 and FIG. 14, the outline of the transmission mechanism 30 is a pair of outer rings 31 and 32 engaged with the main shaft 10 and the cam shaft 19. , A flexible tooth wheel 33 that meshes with a tooth groove formed on the inner surface of each outer ring (both have the same number of teeth) and has a tooth shape with a different number of teeth, and the tooth wheel 33 is elliptical, And it is comprised from the wave formation ring | wheel 34 which is supported so that rotation is possible and meshes | engages in two places facing a tooth gap.

この変速機構30は、ウエーブ形成輪34を固定し、一方の外輪31を駆動したとき、歯車輪33は追随して回動される。これに伴い他方の外輪32も歯車輪33を介して回動される。このとき、両外輪31、32の歯数が同一であり、したがって、同一回転数で回動される。一方、歯車輪33の歯数は、通常、外輪31、32より少なく(例えば、2個少なく)形成する。   In this speed change mechanism 30, when the wave forming wheel 34 is fixed and one outer ring 31 is driven, the toothed wheel 33 follows and rotates. Accordingly, the other outer ring 32 is also rotated via the tooth wheel 33. At this time, the number of teeth of both the outer rings 31 and 32 is the same, and therefore, the outer rings 31 and 32 are rotated at the same rotation number. On the other hand, the number of teeth of the tooth wheel 33 is usually smaller than that of the outer rings 31 and 32 (for example, two fewer).

次に、外輪31を固定し、ウエーブ形成輪34を回動する。35はその駆動用減速モータを示す。このとき、歯車輪33は外輪31との歯数の差があり、これにより回動され、他方の外輪32はこれにより回動される。
したがって、外輪31を回動しながらウエーブ形成輪34を回動することにより、他方の外輪32は、外輪31に対して相対回転速度は変動する。その変動回転数は、ウエーブ形成輪34の回転数に比例する。このように、撓み噛み合い式駆動伝達装置による差動がなされる。
Next, the outer ring 31 is fixed, and the wave forming ring 34 is rotated. Reference numeral 35 denotes a drive reduction motor. At this time, the tooth wheel 33 has a difference in the number of teeth from the outer ring 31, and is rotated by this, and the other outer ring 32 is rotated by this.
Therefore, by rotating the wave forming ring 34 while rotating the outer ring 31, the relative rotational speed of the other outer ring 32 relative to the outer ring 31 varies. The variable rotational speed is proportional to the rotational speed of the wave forming wheel 34. In this way, the differential is performed by the flexibly meshing drive transmission device.

図8において、36は外輪31の支持歯車、37は外輪32の支持歯車、38は主軸10に取り付けられ支持歯車36と噛合する駆動歯車、39は支持歯車37と噛合する従動歯車を示す。
これにより、外輪32の外輪31に対する相対速度差(差動)は、カム軸19を介してカム板18を回動し、絞りローラRを半径方向に出入させることができ、支持機構(図示省略)に固定されたパイプ先端に絞り加工を施すことができる。
In FIG. 8, reference numeral 36 denotes a support gear for the outer ring 31, 37 a support gear for the outer ring 32, 38 a drive gear that is attached to the main shaft 10 and meshes with the support gear 36, and 39 a driven gear that meshes with the support gear 37.
Thereby, the relative speed difference (differential) of the outer ring 32 with respect to the outer ring 31 can rotate the cam plate 18 via the cam shaft 19 so that the squeezing roller R can be moved in and out in the radial direction. The pipe tip fixed to) can be drawn.

そして、加工後のパイプ先端の不要箇所を切断するために、ローラ取付台13には絞りローラRの他に切断ローラCを配設した支持部材17を配設するようにしている。
この支持部材17は、図13に示すように、切断ローラCを回動可能に取り付ける上部移行部材56と、カム板18の渦巻き状溝18a内に突入する案内ピン51aを備えた下部移行部材51とからなり、上部移行部材56及び下部移行部材51は、主取付台14の案内溝14a内を摺動可能に配設され、それぞれが主軸10の軸芯に対して直角方向に移行可能となっている。
And in order to cut the unnecessary part of the pipe tip after processing, in addition to the squeezing roller R, the roller mounting base 13 is provided with a support member 17 provided with a cutting roller C.
As shown in FIG. 13, the support member 17 includes an upper transition member 56 that rotatably attaches the cutting roller C, and a lower transition member 51 that includes a guide pin 51 a that projects into the spiral groove 18 a of the cam plate 18. The upper transition member 56 and the lower transition member 51 are slidably disposed in the guide groove 14a of the main mounting base 14, and each can transition in a direction perpendicular to the axis of the main shaft 10. ing.

そして、切断ローラCを配設した支持部材17は、逆行機構50によって、下部移行部材51の移行方向と上部移行部材56の移行方向とを逆向きとするようにしている。
逆行機構50は、下部移行部材51に刻設したラック51bと、該ラック51bに噛合する主取付台14内に回動自在に配設された歯車52と、該歯車52に噛合する中間歯車53と、該中間歯車53と同一軸55に取り付けられた駆動歯車54と、該駆動歯車54と噛合するラック56aを一側面に刻設した上部移行部材56とから構成される。
Then, the support member 17 provided with the cutting roller C is configured so that the transition direction of the lower transition member 51 and the transition direction of the upper transition member 56 are reversed by the retrograde mechanism 50.
The retrograde mechanism 50 includes a rack 51b carved in the lower transition member 51, a gear 52 rotatably disposed in the main mount 14 meshing with the rack 51b, and an intermediate gear 53 meshing with the gear 52. And a drive gear 54 attached to the same shaft 55 as the intermediate gear 53, and an upper transition member 56 in which a rack 56a meshing with the drive gear 54 is engraved on one side surface.

これによって、カム板18の渦巻き状溝18a内に突入する案内ピン51aが変形部α、γの部分を通過するときの移動方向と逆方向に切断ローラCが移動するようになっている(例えば、特許文献2参照)。   As a result, the cutting roller C moves in the direction opposite to the direction in which the guide pin 51a that enters the spiral groove 18a of the cam plate 18 passes through the deformed portions α and γ (for example, , See Patent Document 2).

そして、絞りローラRによって被加工用パイプの先端に絞り加工を施し、端部の不要部分を切断ローラCによって切断する際、カム板18を図12に示す位置まで相対的に回転(図例、時計回り)させることによって案内ピン51aはカム板18の半径方向外側に移動するも、切断ローラCは半径方向内側に移動して端部の不要部分を切断する。   When the drawing roller R is drawn at the tip of the pipe to be processed, and the unnecessary portion of the end is cut by the cutting roller C, the cam plate 18 is relatively rotated to the position shown in FIG. By rotating clockwise, the guide pin 51a moves outward in the radial direction of the cam plate 18, but the cutting roller C moves inward in the radial direction to cut the unnecessary portion at the end.

ところで、この逆行機構50は、支持部材17を下部移行部材51と上部移行部材56とに分割し、下部移行部材51に配設した案内ピン51aの移行方向を下部移行部材51に刻設したラック51bから、歯車52、中間歯車53、駆動歯車54を介して、上部移行部材56に刻設したラック56aに逆向きに伝えるように構成されており、構造が複雑で、定期的に交換の必要がある案内ピン51aを取り外すために主取付台14まで取り外す必要が生じ、重量物である主取付台14の取り外しのために重機を使用する必要があり作業に多大な手間と時間を要するという問題があった。
また、内部に歯車を3箇所とラックを2箇所に配設するため、歯の部分に亀裂や歯こぼれが生じる可能性が高く、破損の際の交換は案内ピンを交換する作業よりも多大な手間と時間を要するという問題もあった。
特許第3514730号公報 特開2001−137962号公報
By the way, the retrograde mechanism 50 is a rack in which the support member 17 is divided into a lower transition member 51 and an upper transition member 56, and the transition direction of the guide pins 51 a disposed on the lower transition member 51 is engraved on the lower transition member 51. 51b through the gear 52, the intermediate gear 53, and the drive gear 54 to the rack 56a carved in the upper transition member 56, the structure is complicated, the structure is complicated, and it is necessary to replace regularly In order to remove a certain guide pin 51a, it is necessary to remove up to the main mounting base 14, and it is necessary to use a heavy machine to remove the main mounting base 14 which is a heavy object, which requires a lot of work and time. was there.
In addition, since there are three gears and two racks inside, there is a high possibility that cracks and tooth spills will occur in the tooth part, and replacement at the time of breakage is much more than the work of replacing the guide pin There was also a problem that it took time and effort.
Japanese Patent No. 3514730 JP 2001-137862 A

本発明は、上記従来の絞り加工装置の有する問題点に鑑み、逆行機構を配備した支持部材の案内ピンの交換を容易かつ簡単に行うことのできる絞り加工装置を提供することを目的とする。   An object of the present invention is to provide a drawing apparatus capable of easily and easily exchanging guide pins of a support member provided with a retrograde mechanism in view of the problems of the conventional drawing apparatus.

上記目的を達成するため、本発明の絞り加工装置は、主軸先端に、絞りローラ及び切断ローラを半径方向に摺動可能に支持する絞りローラ取付台を備えるとともに、前記主軸と同芯に嵌挿したカム軸先端に、前記絞りローラ及び切断ローラを支持する支持部材から突出した案内ピンが嵌入する渦巻き状溝を刻設したカム板を備え、絞りローラ又は切断ローラのいずれか一方は、逆行機構によって案内ピンの移動方向とローラの移動方向とを逆転させ、両ローラを1の渦巻き状溝の変形部によって半径方向に移行させるようにした絞り加工装置において、逆行機構を、案内ピンを配設する案内スライダの上面に刻設したラックと、絞りローラ又は切断ローラを配設するローラスライダの底面に刻設したラックと、前記両ラック間に回動自在に配設したピニオンから構成するようにしたことを特徴とする。   In order to achieve the above object, a drawing apparatus of the present invention includes a drawing roller mounting base that supports a drawing roller and a cutting roller slidably in a radial direction at the tip of a main shaft, and is fitted and concentrically with the main shaft. The cam shaft is provided with a cam plate in which a spiral groove into which a guide pin protruding from a support member supporting the squeezing roller and the cutting roller is fitted, and either the squeezing roller or the cutting roller has a reverse mechanism. In the drawing apparatus in which the direction of movement of the guide pin and the direction of movement of the roller are reversed by the above and both rollers are moved in the radial direction by the deformed portion of one spiral groove, the retrograde mechanism is provided with the guide pin. A rack engraved on the upper surface of the guide slider to be rotated, a rack engraved on the bottom surface of the roller slider on which the squeezing roller or the cutting roller is disposed, and a rack rotatably disposed between the two racks. Characterized in that the the to composed the pinion.

本発明の絞り加工装置によれば、逆行機構を、案内ピンを配設する案内スライダの上面に刻設したラックと、絞りローラ又は切断ローラを配設するローラスライダの底面に刻設したラックと、前記両ラック間に回動自在に配設したピニオンから構成するようにしたから、その構成を簡素化することができ、案内ピンの交換に際して、主取付台を主軸から取り外すことなく簡単に行うことができるとともに、ピニオンの配設数を従来の3個から1個にすることができるので、歯の部分に亀裂や歯こぼれが生じることによるピニオン交換作業が少なくなり、逆行機構全体の破損による交換頻度を低下させることのできる絞り加工装置を提供することができる。   According to the drawing apparatus of the present invention, the retrograde mechanism includes a rack engraved on the upper surface of the guide slider on which the guide pin is disposed, and a rack engraved on the bottom surface of the roller slider on which the squeezing roller or the cutting roller is disposed. Since the pinion is rotatably arranged between the racks, the configuration can be simplified, and the main mounting base can be easily removed from the main shaft when the guide pin is replaced. In addition, since the number of pinions can be reduced from the conventional three to one, pinion replacement work caused by cracks and tooth spilling on the tooth portion is reduced, and the entire reverse mechanism is damaged. It is possible to provide a drawing apparatus capable of reducing the replacement frequency.

以下、本発明の絞り加工装置の実施の形態を、図面に基づいて説明する。なお、従来装置と同様の構造については同一の符号、一連の符号を付し説明を省略する。   Embodiments of a drawing apparatus according to the present invention will be described below with reference to the drawings. In addition, about the structure similar to a conventional apparatus, the same code | symbol and a series of code | symbol are attached | subjected, and description is abbreviate | omitted.

図1〜7に、本発明の絞り加工装置の実施例を示す。   1 to 7 show an embodiment of the drawing apparatus of the present invention.

この絞り加工装置1は、従来例と同様、主軸10先端に、絞りローラR及び切断ローラCを半径方向に摺動可能に支持するローラ取付台13を備えるとともに、前記主軸10と同芯に嵌挿したカム軸19先端に、前記絞りローラを半径方向に移行させるカム板18を備え、前記主軸10とカム軸19を中空軸で構成した絞り加工装置であって、絞りローラRによって被加工用パイプの先端に絞り加工を施した後に、切断ローラCによって縮径加工した被加工用パイプの先端の余剰部分を切断するようにしている。   As in the conventional example, the drawing apparatus 1 includes a roller mount 13 that supports the drawing roller R and the cutting roller C slidably in the radial direction at the tip of the main shaft 10, and is fitted concentrically with the main shaft 10. A drawing apparatus comprising a cam plate 18 for moving the squeezing roller in the radial direction at the distal end of the inserted cam shaft 19, wherein the main shaft 10 and the cam shaft 19 are constituted by hollow shafts. After drawing the tip of the pipe, the excess portion at the tip of the pipe to be processed that has been reduced in diameter by the cutting roller C is cut.

絞りローラR及び切断ローラCの配設数は、特に限定されるものではないが、本実施例においては、図2に示すように、絞りローラR及び切断ローラCをそれぞれ対向する位置に2個ずつ配設した例を示す。   The number of the squeezing rollers R and the cutting rollers C is not particularly limited, but in this embodiment, as shown in FIG. 2, two squeezing rollers R and two cutting rollers C are provided at positions facing each other. An example of arranging them one by one is shown.

そして、図例上側の絞りローラR及び右側の切断ローラCの案内ピン17a、24を同一の渦巻き状溝18aに嵌入するとともに、図例下側の絞りローラR及び左側の切断ローラCの案内ピン17a、24を前記渦巻き状溝18aとは別の渦巻き状溝18aに嵌入するようにしている。   The guide pins 17a and 24 of the upper drawing roller R and the right cutting roller C are inserted into the same spiral groove 18a, and the lower drawing roller R and the left cutting roller C guide pins of the illustration. 17a and 24 are inserted into a spiral groove 18a different from the spiral groove 18a.

これによって、従来例の図9に示す場合と同様に、絞りローラR及び切断ローラCの案内ピン17a、24が変形部α、γの部分を通過するときに、つまり、図2の初期位置からカム板18が主軸10に対して相対的に回転することによって、案内ピン17a、24は、カム板18の半径方向に移動することとなる。   Accordingly, as in the case of the conventional example shown in FIG. 9, when the guide pins 17a and 24 of the squeezing roller R and the cutting roller C pass through the deformed portions α and γ, that is, from the initial position of FIG. As the cam plate 18 rotates relative to the main shaft 10, the guide pins 17 a and 24 move in the radial direction of the cam plate 18.

そして、図3に示すように、本発明の絞り加工装置1は、逆行機構20を、案内ピン24を配設する案内スライダ21の上面に刻設したラック21aと、絞りローラR又は切断ローラCを配設するローラスライダ22の底面に刻設したラック22aと、前記両ラック21a、22a間に回動自在に配設したピニオン23から構成するようにしている。
逆行機構20は、絞りローラR又は切断ローラCのいずれかに配設するもので、本実施例においては、切断ローラCの支持部材17内に配設した例で説明する。
As shown in FIG. 3, the drawing apparatus 1 of the present invention includes a rack 21 a in which a reverse mechanism 20 is engraved on the upper surface of a guide slider 21 on which guide pins 24 are disposed, and a drawing roller R or a cutting roller C. A rack 22a carved on the bottom surface of the roller slider 22 and a pinion 23 rotatably arranged between the racks 21a and 22a.
The retrograde mechanism 20 is disposed on either the squeezing roller R or the cutting roller C, and in the present embodiment, an example in which it is disposed in the support member 17 of the cutting roller C will be described.

案内スライダ21は、図4に示すように、押さえ板25、25によって、主取付台14底面からの案内溝14aに摺動可能に取り付けられ、下面にカム板18の渦巻き状溝18aに嵌入される案内ピン24を配設し、上面にラック21aを刻設するようにしている。   As shown in FIG. 4, the guide slider 21 is slidably attached to the guide groove 14a from the bottom surface of the main mounting base 14 by holding plates 25, 25, and is fitted into the spiral groove 18a of the cam plate 18 on the lower surface. A guide pin 24 is provided, and a rack 21a is formed on the upper surface.

そして、案内スライダ21のラック21aに噛合するように、ピニオン23を主取付台14内に配設した中間軸受26に回動自在に配設するようにしている。   The pinion 23 is rotatably disposed on the intermediate bearing 26 disposed in the main mount 14 so as to mesh with the rack 21 a of the guide slider 21.

上面に切断ローラCを配設するローラスライダ22は、前記中間軸受26とカバー17cによって挟持されるように案内溝14aに摺動可能に配設されるもので、その下面に刻設したラック22aを前記ピニオン23に噛合させるようにしている。   The roller slider 22 having the cutting roller C disposed on the upper surface is slidably disposed in the guide groove 14a so as to be sandwiched between the intermediate bearing 26 and the cover 17c, and a rack 22a carved on the lower surface thereof. Is engaged with the pinion 23.

上記構成において、被加工用パイプの先端に絞り加工を施した後に、切断ローラCによって縮径加工した被加工用パイプの先端の余剰部分を切断する方法を説明する。   In the above configuration, a method of cutting the surplus portion of the tip of the pipe to be processed, which has been subjected to the diameter reduction processing by the cutting roller C, after drawing the tip of the pipe to be processed will be described.

従来例と同様、ローラ取付台の初期状態は図2に示す位置にあり、カム板18は主軸10と同方向に同期して回転しており、案内ピン17a、24は同心円部β、δと変形部α、γとの変位点に位置している。   As in the conventional example, the initial state of the roller mount is at the position shown in FIG. 2, the cam plate 18 is rotated in the same direction as the main shaft 10, and the guide pins 17a and 24 are concentric circles β and δ. It is located at a displacement point with the deforming portions α and γ.

そして、図例、カム板18を主軸10に対して相対的に反時計回りに回転させることによって、渦巻き状溝18aに嵌入されている案内ピン17aが変形部α、γを通過し、カム板18の半径方向内側に移動することによって、絞りローラRも同様の方向に移動し、被加工用パイプの先端を加工する。
この場合、案内ピン24は、同心円部β、δを通過するから切断ローラCは半径方向に移動することがない。
Then, by rotating the cam plate 18 counterclockwise relative to the main shaft 10, the guide pin 17a inserted in the spiral groove 18a passes through the deformed portions α and γ, and the cam plate By moving inward in the radial direction of 18, the squeezing roller R also moves in the same direction and processes the tip of the pipe to be processed.
In this case, since the guide pin 24 passes through the concentric circles β and δ, the cutting roller C does not move in the radial direction.

次に、絞り加工を施した被加工用パイプの先端の余剰部分を切断する際は、図2に示す初期状態の位置から、図例、カム板18を主軸10に対して相対的に時計回りに回転させることによって、渦巻き状溝18aに嵌入されている案内ピン24が変形部α、γを通過し、カム板18の半径方向外側に移動する。   Next, when cutting the excessive portion at the tip of the pipe to be processed that has been subjected to drawing, the illustrated example, the cam plate 18 is rotated clockwise relative to the main shaft 10 from the initial position shown in FIG. , The guide pin 24 fitted in the spiral groove 18a passes through the deformed portions α and γ and moves outward in the radial direction of the cam plate 18.

そして、図7に示すように、案内ピン24が、カム板18の半径方向外側への移動し、それに伴って案内スライダ21も半径方向外側に移動するものの、案内スライダ21の上面に刻設したラック21aに噛合するピニオン23が図例半時計回りに回動し、該ピニオン23に噛合するラック22aを底面に刻設したローラスライダ22は、カム板18の半径方向内側に移動し、同様に移動した切断ローラCにて被加工用パイプの先端の余剰部分を切断する。   As shown in FIG. 7, the guide pin 24 moves outward in the radial direction of the cam plate 18, and the guide slider 21 moves outward in the radial direction along with it, but is engraved on the upper surface of the guide slider 21. The pinion 23 meshing with the rack 21a rotates counterclockwise in the figure, and the roller slider 22 in which the rack 22a meshing with the pinion 23 is engraved on the bottom surface moves inward in the radial direction of the cam plate 18, similarly. The surplus portion at the tip of the pipe to be processed is cut by the moved cutting roller C.

また、逆行機構20を備えた支持部材17を移動させるための案内ピン24の交換に際しては、カバー17cを主取付台14から取り外した後、中間軸受26、ピニオン23を順次取り外していくことによって、案内ピン24を配設した、案内スライダ21を取り外すことができるから、主軸10から主取付台14を取り外すことなく、案内ピン24の交換作業を簡単に行うことができる。   Further, when replacing the guide pin 24 for moving the support member 17 provided with the retrograde mechanism 20, after removing the cover 17c from the main mounting base 14, the intermediate bearing 26 and the pinion 23 are sequentially removed, Since the guide slider 21 provided with the guide pin 24 can be removed, the guide pin 24 can be easily replaced without removing the main mounting base 14 from the main shaft 10.

以上、本発明の絞り加工装置について、実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、その趣旨を逸脱しない範囲において適宜その構成を変更することができるものである。   The drawing apparatus of the present invention has been described based on the embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and the configurations are appropriately changed without departing from the spirit of the present invention. It is something that can be done.

本発明の絞り加工装置は、逆行機構を配備した支持部材の案内ピンの交換を容易かつ簡単に行うことのできるという特性を有していることから、ローラ取付台に2種類のローラを配設する必要がある絞り加工装置の用途に好適に用いることができる。   Since the drawing device of the present invention has the characteristic that the guide pin of the support member provided with the retrograde mechanism can be easily and simply replaced, two types of rollers are provided on the roller mounting base. It can be used suitably for the application of the drawing apparatus which needs to be performed.

本発明の絞り加工装置を示す全体図である。1 is an overall view showing a drawing apparatus of the present invention. 本発明の絞り加工装置のローラ取付台を示す平面図である。It is a top view which shows the roller mounting base of the drawing apparatus of this invention. 図2におけるX−X断面図である。It is XX sectional drawing in FIG. 図2におけるY−Y断面図である。It is YY sectional drawing in FIG. ローラ取付台の絞りローラの移動状態示す平面図である。It is a top view which shows the movement state of the aperture roller of a roller mounting base. ローラ取付台の切断ローラの移動状態示す平面図である。It is a top view which shows the movement state of the cutting roller of a roller mounting base. 図6におけるZ−Z断面図である。It is ZZ sectional drawing in FIG. 従来の絞り加工装置を示す全体図である。It is a general view which shows the conventional drawing apparatus. カム板を示す平面図である。It is a top view which shows a cam board. ローラ取付台の初期状態示す平面図である。It is a top view which shows the initial state of a roller mounting base. ローラ取付台の絞りローラの移動状態示す平面図である。It is a top view which shows the movement state of the aperture roller of a roller mounting base. ローラ取付台の切断ローラの移動状態示す平面図である。It is a top view which shows the movement state of the cutting roller of a roller mounting base. 逆行機構の構造を示し、(a)は図10のW−W断面、(b)は図10のV−V断面を示す。The structure of a retrograde mechanism is shown, (a) shows the WW cross section of FIG. 10, (b) shows the VV cross section of FIG. 変速機構の説明図で、(a)は変速機構の正面図で(b)におけるX1−X1線断面図、(b)は(a)におけるY1−Y1断面図、(c)は変速作用の説明図である。BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of a transmission mechanism, (a) is a front view of a transmission mechanism, X1-X1 sectional view taken on the line in (b), (b) is Y1-Y1 sectional drawing in (a), (c) is description of a transmission action. FIG.

符号の説明Explanation of symbols

1 絞り加工装置
2 主軸機構
10 主軸
13 ローラ取付台
14 主取付台
17 支持部材
17a 案内ピン
18 カム板
18a 渦巻き状溝
19 カム軸
20 逆行機構
24 案内ピン
21 案内スライダ
21a ラック
22 ローラスライダ
22a ラック
23 ピニオン
R 絞りローラ
C 切断ローラ
DESCRIPTION OF SYMBOLS 1 Drawing apparatus 2 Main shaft mechanism 10 Main shaft 13 Roller mounting base 14 Main mounting base 17 Support member 17a Guide pin 18 Cam plate 18a Spiral groove 19 Cam shaft 20 Reverse mechanism 24 Guide pin 21 Guide slider 21a Rack 22 Roller slider 22a Rack 23 Pinion R Drawing roller C Cutting roller

Claims (1)

主軸先端に、絞りローラ及び切断ローラを半径方向に摺動可能に支持する絞りローラ取付台を備えるとともに、前記主軸と同芯に嵌挿したカム軸先端に、前記絞りローラ及び切断ローラを支持する支持部材から突出した案内ピンが嵌入する渦巻き状溝を刻設したカム板を備え、絞りローラ又は切断ローラのいずれか一方は、逆行機構によって案内ピンの移動方向とローラの移動方向とを逆転させ、両ローラを1の渦巻き状溝の変形部によって半径方向に移行させるようにした絞り加工装置において、逆行機構を、案内ピンを配設する案内スライダの上面に刻設したラックと、絞りローラ又は切断ローラを配設するローラスライダの底面に刻設したラックと、前記両ラック間に回動自在に配設したピニオンから構成するようにしたことを特徴とする絞り加工装置。   A squeezing roller mounting base for supporting the squeezing roller and cutting roller in a radial direction is provided at the tip of the main shaft, and the squeezing roller and cutting roller are supported at the tip of the cam shaft that is fitted concentrically with the main shaft. The cam plate is provided with a spiral groove into which the guide pin protruding from the support member is inserted, and either the squeezing roller or the cutting roller reverses the moving direction of the guide pin and the moving direction of the roller by a reverse mechanism. In the drawing apparatus in which both rollers are moved in the radial direction by the deformed portion of one spiral groove, a reverse mechanism is provided with a rack engraved on the upper surface of the guide slider on which the guide pin is disposed, A rack engraved on the bottom surface of a roller slider for disposing a cutting roller, and a pinion that is rotatably disposed between the racks. That drawing apparatus.
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JP2014138946A (en) * 2013-01-21 2014-07-31 Nippon Spindle Mfg Co Ltd Spinning device

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CN102335688A (en) * 2011-10-21 2012-02-01 中山市奥美森工业技术有限公司 Spinning machine

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JP2001001273A (en) * 1999-06-22 2001-01-09 Victor Co Of Japan Ltd Chucking device
JP2001137962A (en) * 1999-11-15 2001-05-22 Nippon Spindle Mfg Co Ltd Drawing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506142A (en) * 2011-09-20 2012-06-20 浙江腾云制冷科技有限公司 Driving device for pipe reducing device
JP2014138946A (en) * 2013-01-21 2014-07-31 Nippon Spindle Mfg Co Ltd Spinning device

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CN101362168A (en) 2009-02-11
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