JPH05301135A - Long work steady rest device in lathe - Google Patents

Long work steady rest device in lathe

Info

Publication number
JPH05301135A
JPH05301135A JP13150492A JP13150492A JPH05301135A JP H05301135 A JPH05301135 A JP H05301135A JP 13150492 A JP13150492 A JP 13150492A JP 13150492 A JP13150492 A JP 13150492A JP H05301135 A JPH05301135 A JP H05301135A
Authority
JP
Japan
Prior art keywords
dog
work
carriage
moved
bed
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.)
Granted
Application number
JP13150492A
Other languages
Japanese (ja)
Other versions
JP2669994B2 (en
Inventor
Teruo Hoshino
照雄 星野
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.)
Dainichi Kinzoku Kogyo Co Ltd
Original Assignee
Dainichi Kinzoku Kogyo Co Ltd
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 Dainichi Kinzoku Kogyo Co Ltd filed Critical Dainichi Kinzoku Kogyo Co Ltd
Priority to JP13150492A priority Critical patent/JP2669994B2/en
Publication of JPH05301135A publication Critical patent/JPH05301135A/en
Application granted granted Critical
Publication of JP2669994B2 publication Critical patent/JP2669994B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Machine Tool Units (AREA)

Abstract

PURPOSE:To efficiently move each cradle vertically by setting one of dog clutches for the plus/minus Z directions in order to be capable of being changed to cutting feed, and concurrently setting the other of the dog clutches in order to be capable of being changed to quick return when a carriage is moved in the plus/minus Z directions. CONSTITUTION:Dog clutches 69 and 70 for the plus/minus Z directions are set in parallel between a bed 2 and a carriage 5 moved in the Z axis direction of the bed 2 in response to a plural number of cradles 25 in such a way that their positions can be adjusted while each specified pattern is being followed, and a cradle lift operation section 65 is provided for the carriage 5 side, where the section consists of a detecting section 75 which enables each work cradle 25 to be vertically moved based on electrical signals while being brought into contact with/separated from each dog clutch for the plus/minus Z directions. Furthermore, when the carriage 5 is moved in the plus/ minus Z direction, one of the dog clutches 69 and 70 for the plus/minus Z directions can be set in order to be feely changed to cutting feed, and the other can be set in order to be freely changed to quick return, so that each work cradle 25 is thereby operated to go up and down in order via each dog clutch 69 and 70 for the plus/minus Z directions when the carriage 5 passes through.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、旋盤において長尺ワ
ークに例えばねじ加工を施す場合の振止め装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration device when a long work is to be threaded, for example, on a lathe.

【0002】[0002]

【従来の技術】従来、この種の旋盤においては図19に
示すように、細長い丸棒材Wにねじ切り加工を施す場
合、ベッドbの長手方向に所定の間隔で複数の手動ジャ
ッキ式のワーク受台aを配設し、横送り台に取付けた移
動振止めにより加工が行われていた。
2. Description of the Related Art Conventionally, in this type of lathe, as shown in FIG. 19, when threading a slender round bar W, a plurality of manual jack type work receiving members are arranged at predetermined intervals in the longitudinal direction of a bed b. Processing was performed by disposing a table a and mounting it on a transverse feed table to prevent movement.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、ねじ切
り作業は、ねじ切りサイクルが数10回(P−6で約2
0回程度)繰り返されるために、ワーク受台aの位置の
ずらしや、取付けおよび取外しを頻繁に行わなければな
らないため、極めて手数を要する問題点があり、さら
に、刃具も高速度工具鋼から超硬合金に移行しており、
このため往復台の送り速度が速くなり、ねじ切り作業は
非能率的となる問題点があった。
However, in the thread cutting work, the thread cutting cycle is several tens of times (about 2 in P-6).
Since it is repeated about 0 times), the work pedestal a must be shifted in position, and the mounting and dismounting must be frequently performed, resulting in a problem that it is extremely troublesome. It has shifted to hard alloys,
As a result, the feed rate of the carriage is increased, and the thread cutting work becomes inefficient.

【0004】本発明は、上記従来の問題点を解決すべく
なされたもので、予め、ベッド側に複数台のワーク受台
を配設し、この各ワーク受台は往復台の往動に伴い、順
次ベット側に退避して移動を可能とし、通過後、上動し
てワークを支持し、また、往復台の復動においても同様
に退避と支持との動作を行う、旋盤における長尺ワーク
の振止め装置を提供することを目的とするものである。
The present invention has been made to solve the above-mentioned conventional problems. A plurality of work pedestals are arranged in advance on the bed side, and each work pedestal is associated with the forward and backward movement of the reciprocating table. , A long work on a lathe that sequentially moves to the bet side to allow movement, moves up and supports the work, and also performs retreat and support operations when returning the carriage. It is an object of the present invention to provide an anti-sway device.

【0005】[0005]

【課題を解決するための手段】本発明は、上記技術課題
を解決するため、長尺のワークにねじ加工を施す旋盤に
おいて、該旋盤のベッドの谷底部の長手方向に沿って配
設され、複動回り止め部を連繋して上下動する複数の作
動シリンダと、この複動回り止め部の下端部に作動シリ
ンダの上昇速度を減速するシリンダ減速部からなるワー
ク受部を配設し、前記ベッドと該ベッドのZ軸方向に移
動される往復台間には前記複数のワーク受台に対応して
±Z方向に所定のパターンで位置調整可能に±Z用ドッ
グを並設し、かつ往復台側にこれら各±Z用ドッグに接
離して電気信号により前記ワーク受台を上下動可能とす
る検出部とからなる受台昇降作動部を設けて、前記往復
台の±Z方向の移動時に前記±Z用ドッグの一方を切削
送りに、他方を早戻りに変更可能に設け、前記往復台に
は前記作動シリンダの配列線上に沿って±Z軸方向へ突
出する衝突軸を弾着した衝突防止装置を配設する構成と
して旋盤における長尺ワーク振止め装置に存する。
In order to solve the above technical problems, the present invention provides a lathe for threading a long work, which is arranged along the longitudinal direction of the valley bottom of the bed of the lathe. A plurality of working cylinders that move up and down by linking the double-acting detent portions, and a work receiving portion including a cylinder deceleration portion that decelerates the rising speed of the working cylinders are arranged at the lower end portion of the double-acting detent portions. Between the bed and the carriage moved in the Z-axis direction of the bed, dogs for ± Z are installed side by side so that the dogs can be positionally adjusted in a predetermined pattern in the ± Z direction corresponding to the plurality of work supports. A pedestal raising / lowering operation unit is provided on the pedestal side, which includes a detection unit that moves up and down with each of the ± Z dogs to move the work pedestal up and down by an electric signal. One of the ± Z dogs is used as a cutting feed, and the other is quickly returned. A long work swinging device in a lathe as a structure in which a collision prevention device elastically impacting a collision shaft projecting in the ± Z axis direction along the arrangement line of the working cylinders is provided on the carriage. Exist in.

【0006】[0006]

【作用】上記構成としたことにより、往復台の±Z方向
の移動時に±Z用ドッグの一方を切削送りに、他方を早
戻りに変更可能に設けて、往復台の通過時に各ワーク受
部を±Z用ドッグを介して順次降下・上昇作動する。
With the above construction, when the carriage is moved in the ± Z direction, one of the ± Z dogs can be changed to cutting feed and the other can be changed to fast return so that each work receiving portion can be moved when the carriage passes. To descend and rise sequentially via the ± Z dog.

【0007】[0007]

【実施例】次に、本発明の一実施例を図面にしたがって
説明すると、図1は旋盤1のベッド2の正面側を示すも
ので、同ベッド2に図示左端部には主軸台3が設けら
れ、また、同ベッド2の図示右側には心押し台4が摺動
可能に載置されるとともに、この主軸台3と心押し台4
との間には往復台5が往復動可能に設けられ、この往復
台5には図2に示す移動振止め6が付設されるととも
に、同往復台5の移動方向と直交する方向へ移動可能に
刃物台7が設けられている。
1 is a front view of a bed 2 of a lathe 1 in which a headstock 3 is provided at the left end of the bed 2. Further, a tailstock 4 is slidably mounted on the right side of the bed 2 in the figure, and the headstock 3 and the tailstock 4 are mounted together.
A reciprocating table 5 is reciprocally provided between the reciprocating table 5 and the reciprocating table 5, and a moving sway 6 shown in FIG. 2 is attached to the reciprocating table 5 and the reciprocating table 5 can move in a direction orthogonal to the moving direction of the reciprocating table 5. A tool rest 7 is provided on the.

【0008】この移動振止め6は主軸台3のセンタと心
押し台4のセンタとを結ぶ中心線Cすなわち、ワークW
の中心線Cに指向する振止め爪12を有するもので、略
円弧状のフレーム8には中心線Cに向けて水平な下部筒
状体9と同下部筒状体9より所定の角度の上部前方位置
にほぼ同様の上部筒状体10が一体に形成され、この上
下の筒状体9,10には先端に振止め爪12を取り付け
た筒状の摺動体11が摺動可能に嵌合されるとともに、
この摺動体11にはねじ受部13が形成されてハンドル
15を有する調整ねじ杆14が螺合されて、ハンドル1
5を回すことで振止め爪12は中心線Cに向けて進退調
整可能に設けられている。また、下部筒状体9の下部に
は先端に振止め爪12を有するリンクアーム16が軸ピ
ン17を介して枢着され、同リンクアーム16には軸ピ
ン17を中心として所定の半径位置に円弧状の位置決め
溝18が貫設されて同溝18にはフレーム8に植設され
た固定用ねじ19が挿通されている。また、フレーム8
側にはリンクアーム16に形成した凸部20に指向して
ハンドル15を有する調整ねじ杆21が図示水平状に螺
着され、同ねじ杆21を螺進するとリンクアーム16は
軸ピン17を中心としてその先端の振止め爪12は中心
線Cに指向して回動される。このように設けられた移動
振止め6は主軸台3のセンタと心押し台4のセンタとの
間に保持されたワークWを同一平面内で3点支持して往
復台5と一体状に移動される。
The moving swing 6 is a center line C connecting the center of the headstock 3 and the center of the tailstock 4, that is, the work W.
Has a swinging pawl 12 directed to the center line C of the lower cylindrical body 9 which is horizontal toward the center line C and an upper portion at a predetermined angle from the lower cylindrical body 9 in the substantially arcuate frame 8. A substantially similar upper tubular body 10 is integrally formed at the front position, and a tubular sliding body 11 having a swinging pawl 12 attached to the tip thereof is slidably fitted to the upper and lower tubular bodies 9 and 10. As well as
A screw receiving portion 13 is formed on the sliding body 11 and an adjusting screw rod 14 having a handle 15 is screwed into the sliding body 11 so that the handle 1
The anti-vibration claw 12 is provided so that it can be moved back and forth toward the center line C by turning 5. Further, a link arm 16 having a swinging claw 12 at its tip is pivotally attached to a lower portion of the lower tubular body 9 via a shaft pin 17, and the link arm 16 is located at a predetermined radial position about the shaft pin 17. An arcuate positioning groove 18 is provided so that a fixing screw 19 implanted in the frame 8 is inserted into the groove 18. Also, the frame 8
On the side, an adjusting screw rod 21 having a handle 15 is screwed in the horizontal direction in the figure toward the convex portion 20 formed on the link arm 16, and when the screw rod 21 is screwed, the link arm 16 is centered on the shaft pin 17. As a result, the anti-vibration claw 12 at its tip is rotated toward the center line C. The movable swing stop 6 thus provided supports the work W held between the center of the headstock 3 and the center of the tailstock 3 at three points in the same plane and moves integrally with the reciprocating table 5. To be done.

【0009】このように移動振止め6を付設した往復台
5を摺動案内するベッド2側には所定の間隔で複数本
(本例では3本の場合を例示した)のワーク受台25が
配設され、このワーク受台25を図3ないし図9にした
がって説明すると、この各ワーク受台25は同様に構成
されるもので、テレスコピックタイプの作動シリンダ2
6とピストンロッド27の複動回り止め部36とシリン
ダ減速部50とより構成されている。
As described above, a plurality of work pedestals 25 (three in this example are shown) are provided at a predetermined interval on the bed 2 side for slidingly guiding the reciprocating table 5 provided with the moving swing 6 attached thereto. The work pedestals 25 are arranged and will be described with reference to FIGS. 3 to 9. Each of the work pedestals 25 has the same structure.
6, a double-acting detent portion 36 of the piston rod 27, and a cylinder deceleration portion 50.

【0010】この作動シリンダ26は図3に示すように
ベッド2の左右の案内面2a,2b間の谷底部22にそ
のピストンロッド27を上向きのして取り付けられると
ともに、同ピストンロッド27の中心線C1 はセンタ中
心線Cと直交するように取付けられてストロークSが与
えられるように設けられている。また、図6に示すよう
にこのピストンロッド27の先端に螺設されたねじ部2
7aにはヘッドメタル32の嵌込み凹部29を有するヘ
ッド取付けブラケット28が取付けられ、この嵌込み凹
部29の左右には図4および図5に示すように調整ねじ
31を有する位置決めブロック30が取付けられてい
る。また、ヘッドメタル32は嵌込み凹部29に嵌込み
可能なブロック状に形成され、このヘッドメタル32の
一方の面の中心にはワークWの径に応じた円弧状凹部3
3例えばミニマム径dからマキシマムDの間の複数種類
の円弧状凹部33を凹設したヘッドメタル32が用意さ
れている。このヘッドメタル32はその円弧状凹部33
を中心線C方向にして嵌込み凹部29に嵌め込むととも
に、左右の位置決めブロック30の調整ねじ31を螺進
退して円弧状凹部33の中心をセンタ中心線Cに整合
し、かつ嵌込み凹部29の一方の縁部側に螺着したロッ
クねじ34により固定され、同嵌込み凹部29の他方の
縁部側には回り止めブラケット35が取付けられて複動
回り止め部36に連携されている。
As shown in FIG. 3, the operating cylinder 26 is attached to the valley bottom 22 between the left and right guide surfaces 2a and 2b of the bed 2 with its piston rod 27 facing upward, and the center line of the piston rod 27. C1 is mounted so as to be orthogonal to the center line C of the center so that a stroke S is given. Further, as shown in FIG. 6, a screw portion 2 screwed on the tip of the piston rod 27.
A head mounting bracket 28 having a fitting recess 29 for the head metal 32 is mounted on the 7a, and positioning blocks 30 having adjusting screws 31 are mounted on the left and right of the fitting recess 29 as shown in FIGS. ing. The head metal 32 is formed in a block shape that can be fitted into the fitting recess 29, and the arc-shaped recess 3 corresponding to the diameter of the workpiece W is formed at the center of one surface of the head metal 32.
3 For example, a head metal 32 having a plurality of types of arc-shaped recesses 33 between the minimum diameter d and the maximum D is prepared. The head metal 32 has an arcuate recess 33.
Is fitted in the fitting recess 29 with the center line C as the direction, and the adjusting screws 31 of the left and right positioning blocks 30 are screwed back and forth to align the center of the arc-shaped recess 33 with the center center line C and to fit the fitting recess 29. It is fixed by a lock screw 34 screwed to one edge side, and a detent bracket 35 is attached to the other edge side of the fitting recess 29 and cooperates with a double-action detent section 36.

【0011】この複動回り止め部36はベッド2の谷底
部22に作動シリンダ26と並設して取付けられるもの
で、この回り止め部36は図7に示すように筒状の取付
けフランジ37と筒状の第2軸40とこの第2軸40に
摺動可能に嵌装される第1軸44とから構成され、取付
けフランジ37は谷底部22にその筒部38が貫通状に
取付けられ、この筒部38の上部には内径側に突出する
ガイド用ねじ39が取付けられている。また、第2軸4
0は取付けフランジ37に摺動可能に嵌合する筒状体に
形成され、その上端にはフランジ部41が形成されて取
付けフランジ37に当接支持可能に設けられ、第2軸4
0の外周部の長手方向には取付けフランジ37に取付け
たガイド用ねじ39と係合して同第2軸40を回り止め
して直線的にガイドするガイド溝42が凹設されてい
る。また、第2軸40のフランジ部41には第1軸44
を挿通する孔を有する上蓋43が取付けられている。こ
の第1軸44は上蓋43に挿通される所定の長さを有す
る小径軸部45と同小径軸部45の下端部に形成されて
第2軸40の内径部に摺動可能に嵌合する大径軸部46
とから形成され、同第2軸40の上端に形成されたねじ
部47を介して回り止めブラケット35に連携されてい
る。
The double-acting detent portion 36 is mounted on the valley bottom 22 of the bed 2 in parallel with the operating cylinder 26. The detent portion 36 has a cylindrical mounting flange 37 as shown in FIG. It is composed of a cylindrical second shaft 40 and a first shaft 44 slidably fitted to the second shaft 40, and the mounting flange 37 has a cylindrical portion 38 penetratingly attached to the valley bottom portion 22, A guide screw 39 that protrudes toward the inner diameter side is attached to the upper portion of the tubular portion 38. Also, the second shaft 4
0 is formed in a cylindrical body slidably fitted to the mounting flange 37, and a flange portion 41 is formed at the upper end thereof so as to be capable of contacting and supporting the mounting flange 37.
A guide groove 42 that engages with a guide screw 39 attached to the attachment flange 37 to prevent the second shaft 40 from rotating and linearly guides is provided in the outer peripheral portion of 0 in the longitudinal direction. Further, the first shaft 44 is attached to the flange portion 41 of the second shaft 40.
An upper lid 43 having a hole for inserting is attached. The first shaft 44 is formed at the lower end of the small-diameter shaft portion 45 and the small-diameter shaft portion 45 having a predetermined length which is inserted into the upper lid 43, and is slidably fitted to the inner diameter portion of the second shaft 40. Large diameter shaft 46
And is linked to the detent bracket 35 via a threaded portion 47 formed at the upper end of the second shaft 40.

【0012】このように連結された複動回り止め部36
は作動シリンダ26が伸長作動すると、回り止めブラケ
ット35を介して第1軸44が上動され、下端部の大径
軸部46が第2軸40に取付けた上蓋43に当接係合さ
れると同第2軸40は第1軸44と一体にガイド溝42
がガイド用ねじ39に案内されて直線的に上動されてピ
ストンロッド27の回り止めが防止され、同ピストンロ
ッド27の先端に取付けたヘッドメタル32の円弧状凹
部33はセンタ間のワークWを当接支持する。このヘッ
ドメタル32によりワークWを当接支持するに際し、そ
の衝撃を緩衝するため複動回り止め部36とベッド2と
の間にシリンダ減速部50が介装されている。
The double-action detent portion 36 connected in this way
When the operating cylinder 26 is extended, the first shaft 44 is moved upward through the detent bracket 35, and the large diameter shaft portion 46 at the lower end is brought into contact with the upper lid 43 attached to the second shaft 40. The second shaft 40 and the first shaft 44 are integrally formed with the guide groove 42.
Is guided by the guide screw 39 to be linearly moved upward to prevent the piston rod 27 from being prevented from rotating, and the arcuate concave portion 33 of the head metal 32 attached to the tip of the piston rod 27 holds the work W between the centers. Abut and support. A cylinder deceleration portion 50 is interposed between the double-acting rotation stop portion 36 and the bed 2 in order to cushion the impact of the head metal 32 when the workpiece W is abutted and supported.

【0013】このシリンダ減速部50は図8および図9
に示すように回り止め部36の第2軸40の下端部にド
ッグ取付ブラケット52を介して取付けられるドッグ5
1と、このドッグ51と対設するベッド2側にはリミッ
トスイッチ取付ブラケット54を介してリミットスイッ
チ53がドッグ51の移動軌跡上に臨むように取付けら
れ、このドッグ51は断面略方形状の棒状に形成され、
作動シリンダ26が短縮、すなわち回り止め部36が短
縮されて第2軸40が降下された状態でその先端はリミ
ットスイッチ53と所定の間隔を有して取付けられてい
る。また、リミットスイッチ53は図示はしないが作動
シリンダ26のピストン室側に接続された油圧配管路に
配設された電磁流量制御弁に継電されている。このよう
に設けられたシリンダ減速部50は作動シリンダ26が
伸長作動すると、回り止めブラケット35を介して第1
軸44が上動され、下端部の大径軸部46が第2軸40
に取付けた上蓋43に当接係合されると同第2軸40は
第1軸44と一体に上動され、この上動により第2軸に
取付けたドッグ51がその移動軌跡上に臨まれたリミッ
トスイッチ53に接触すると、この接触信号により油圧
回路に配設された電磁流量制御弁が作動されて作動シリ
ンダ26のピストン室への給油量が絞られてピストンロ
ッド27の上昇速度が減速されて先端のヘッドメタル3
2はワークWに柔軟状に当接支持するように構成されて
いる。
This cylinder deceleration unit 50 is shown in FIGS. 8 and 9.
As shown in FIG. 5, the dog 5 attached to the lower end portion of the second shaft 40 of the rotation stop portion 36 via the dog attachment bracket 52.
1, and a limit switch 53 is mounted on the bed 2 side opposite to the dog 51 via a limit switch mounting bracket 54 so as to face the movement trajectory of the dog 51. The dog 51 has a rod shape with a substantially rectangular cross section. Formed in
The working cylinder 26 is shortened, that is, the detent portion 36 is shortened and the second shaft 40 is lowered, and its tip is attached to the limit switch 53 with a predetermined distance. Further, although not shown, the limit switch 53 is relayed to an electromagnetic flow control valve provided in a hydraulic pipe line connected to the piston chamber side of the working cylinder 26. The cylinder decelerating portion 50 provided in this manner causes the first deceleration bracket 35 to intervene when the working cylinder 26 extends.
The shaft 44 is moved upward, and the large-diameter shaft portion 46 at the lower end is moved to the second shaft 40.
The second shaft 40 is moved upward together with the first shaft 44 when abuttingly engaged with the upper lid 43 attached to the second shaft 40. By this upward movement, the dog 51 attached to the second shaft is exposed on its movement locus. When the limit switch 53 is contacted, the contact signal activates the electromagnetic flow control valve arranged in the hydraulic circuit to throttle the amount of oil supplied to the piston chamber of the working cylinder 26, thereby reducing the rising speed of the piston rod 27. Head metal 3
2 is configured so as to flexibly contact and support the work W.

【0014】このように配設された各ワーク受台25と
往復台5との関係において、往復台5の移動速度とワー
ク受台25の降下タイミングのずれに起因する衝突を防
止するため衝突防止装置55が往復台5の下面側の前後
に付設されている。この前後の衝突防止装置55は同様
に構成されるもので、図10ないし図13に示すように
略方形状の有底箱体56の一方の側縁56a寄りの対応
する側縁56b,56cには所定の径の挿通孔57a,
57bが貫設され、同挿通孔57a,57bには中央外
周部に凹溝59を有する衝突棒58が挿通され、この衝
突棒58の一方の軸部58a側の端部は側縁56bより
突出されて止めリング60aにより係着されるととも
に、同軸部58aの溝部59寄りにも止めリング60b
が取付けられ、この止めリング60bと側縁56bとの
間には所定のばね圧を有するコイルばね61が弾着され
て衝突棒58の他方の軸部58bは側縁56cより所定
の長さ突出されている。また、有底箱体56内にはリミ
ットスイッチ62が取付けられ、その作動ローラ62a
は衝突棒58の溝部59に臨まれている。
In the relationship between the work pedestals 25 and the reciprocating pedestal 5 thus arranged, collision prevention is prevented in order to prevent a collision caused by a difference between the moving speed of the reciprocating pedestal 5 and the descent timing of the work pedestal 25. Devices 55 are attached to the front and rear of the lower surface of the carriage 5. The front and rear collision preventive devices 55 have the same structure and are provided on the corresponding side edges 56b and 56c near one side edge 56a of the box-like box 56 having a substantially rectangular shape as shown in FIGS. Is an insertion hole 57a having a predetermined diameter,
57b is penetrated, a collision rod 58 having a concave groove 59 in the central outer peripheral portion is inserted through the insertion holes 57a, 57b, and one end portion of the collision rod 58 on the side of the shaft portion 58a projects from the side edge 56b. And is locked by the stop ring 60a, and the stop ring 60b is provided near the groove 59 of the coaxial portion 58a.
A coil spring 61 having a predetermined spring pressure is elastically mounted between the stop ring 60b and the side edge 56b so that the other shaft portion 58b of the collision rod 58 projects a predetermined length from the side edge 56c. Has been done. Further, a limit switch 62 is mounted in the bottomed box body 56, and its operating roller 62a
Faces the groove 59 of the collision rod 58.

【0015】このように設けられた衝突防止装置55は
図11および図12に示すように往復台5に対し箱体取
付ブラケット63a,63bを介して衝突棒58の軸部
58bを前後面より突出させ、かつセンタ中心線Cに整
合、あるいは若干位置ずれして取付けられている(本例
では若干位置ずれして取付けられている)。なお、この
リミットスイッチ62は往復台5を往復動する送りねじ
のサーボモータに継電され、往復台5の移動中にタイミ
ングのずれにより衝突棒58がワーク受台25側に衝突
すると、同衝突棒58の溝部59に臨まれたリミットス
イッチ62を作動して往復台5の送りねじのサーボモー
タの回転を停止して往復台5を停止するように設けられ
ている。
As shown in FIGS. 11 and 12, the collision prevention device 55 thus provided projects the shaft portion 58b of the collision rod 58 from the front and rear surfaces of the carriage 5 via the box body mounting brackets 63a and 63b. And is attached to the center line C or slightly displaced (in this example, slightly displaced). The limit switch 62 is relayed by a servomotor of a feed screw that reciprocates the reciprocating table 5, and when the collision rod 58 collides with the work cradle 25 side due to a timing deviation while the reciprocating table 5 is moving, the same collision occurs. The limit switch 62 exposed to the groove 59 of the rod 58 is operated to stop the rotation of the servomotor of the feed screw of the carriage 5 to stop the carriage 5.

【0016】このように衝突防止装置55を取付けた往
復台5とベッド2との間には各ワーク受台25を昇降作
動する受台昇降作動部65が介装されている。この作動
部65はベッド2側に取付けられるドッグ部材66と往
復台5のエプロン73の主軸台3側に取付けられる検知
部75とからなるもので、このドッグ部材66のドッグ
取付けプレート67は複数枚の板材が接続されて所定の
長さに形成され、このドッグ取付けプレート67には長
手方向に沿って複数本すなわち3台のN0.1 ワーク受台
25A,N0.2 ワーク受台25B,N0.3 ワーク受台2
5Cに対する往復台5の往復動作に対処して6本のドッ
グ取付用溝68が凹設され、同ドッグ取付用溝68には
所定の長さのドッグ69,70が着脱可能に取付けられ
ている。このドッグ69,70は図15に示すように溝
68に嵌め込み固定して所定の長さ突出する断面略長方
形状に形成され、その複数箇所には面69a側より所定
の径のねじ部69bが螺設され、そのねじ部69bの端
部にはドッグ取付用溝68の対向面に向けて孔69cが
貫設され、同孔69cには所定の径を有する鋼球71が
納められるとともに、同孔69cの両端開口はカシメ状
に狭められて鋼球71の逸脱が防止され、ねじ部69b
には押しねじ72が螺着されている。なお、ドッグ70
も同様に形成されている。このように形成されたドッグ
69,70は溝部68に嵌込んで押しねじ72を螺進す
ることで鋼球71をドッグ取付用溝68へ押圧してドッ
グ67,70を固定するように設けられている。
As described above, between the carriage 5 to which the collision prevention device 55 is attached and the bed 2, the pedestal raising / lowering operation portion 65 for vertically moving the respective work pedestals 25 is interposed. The operating portion 65 comprises a dog member 66 attached to the bed 2 side and a detection portion 75 attached to the headstock 3 side of the apron 73 of the carriage 5, and the dog attaching plate 67 of the dog member 66 is plural. Are connected to each other to form a predetermined length, and a plurality of N0.1 work pedestals 25A, N0.2 work pedestals 25B, N0. 3 Work stand 2
Six dog mounting grooves 68 are provided to cope with the reciprocating motion of the carriage 5 with respect to 5C, and dogs 69 and 70 of a predetermined length are detachably mounted in the dog mounting grooves 68. .. As shown in FIG. 15, the dogs 69 and 70 are formed into a substantially rectangular cross section that is fitted and fixed in the groove 68 and protrudes by a predetermined length, and screw portions 69b having a predetermined diameter from the surface 69a side are formed at a plurality of positions. A hole 69c is provided through the end of the threaded portion 69b toward the facing surface of the dog mounting groove 68, and a steel ball 71 having a predetermined diameter is housed in the hole 69c. The openings at both ends of the hole 69c are narrowed in a crimped shape to prevent the steel ball 71 from departing,
A push screw 72 is screwed onto the. The dog 70
Is similarly formed. The dogs 69 and 70 formed in this manner are provided so as to be fitted into the groove portion 68 and the push screw 72 is screwed to push the steel ball 71 into the dog mounting groove 68 to fix the dogs 67 and 70. ing.

【0017】このように設けられたドッグ取付けプレー
ト67はベッド2のサイドに取付けられるとともに、各
ドッグ取付用溝68には図17に示す所定の取付けパタ
ーンで取付けられている。なお、この取付けパターンは
ねじ切り速度(主軸回転×ピッチ)で決まるもので、例
えばドッグ取付けプレート67に図示はしないが旋盤1
専用のパターン目盛が付されている。すなわち、上側3
本の取付用溝68は往復台5の+Z方向への移動時での
N0.1 ワーク受台25A,N0.2 ワーク受台25B,N
0.3 ワーク受台25Cを作動するため、下側より+ZN
0.1 ドッグ69A,+ZN0.2 ドッグ69B,+ZN0.
3 ドッグ69Cが図示パターンで取付けられ、また、下
側3本の取付用溝68は往復台5の−Z方向への移動時
でのN0.1 ワーク受台25A,N0.2 ワーク受台25
B,N0.3 ワーク受台25Cを作動するため、下側より
−ZN0.1 ドッグ70A,−ZN0.2 ドッグ70B,−
ZN0.3 ドッグ70Cが図示パターンで取付けられら
れ、この−Z方向の場合には+Z方向とは逆に−ZN0.
1 ドッグ70A,−ZN0.2 ドッグ70B,−ZN0.3
ドッグ70CはN0.3 ワーク受台25Cから順次に対応
され、ねじ切削の場合、右ねじ切削は、−ZN0.1 ドッ
グ70A,−ZN0.2 ドッグ70B,−ZN0.3ドッグ
70C側が切削送りで作動し、+ZN0.1 ドッグ69
A,+ZN0.2 ドッグ69B,+ZN0.3 ドッグ69C
側は早戻りで作動し、左ねじの場合には+ZN0.1 ドッ
グ69A,+ZN0.2 ドッグ69B,+ZN0.3 ドッグ
69C側が切削送りで作動し、−ZN0.1 ドッグ70
A,−ZN0.2 ドッグ70B,−ZN0.3 ドッグ70C
側が早送りで作動するようにプログラムされている。な
お、ドッグ69,70の取付け位置および長さは作動シ
リンダ26の昇降速度(例えば6m/min)で設定され、
昇降速度6m/min を越えるとドッグ69,70の取付
け位置および長さを変更する必要がある。
The dog mounting plate 67 thus provided is mounted on the side of the bed 2 and is mounted in each dog mounting groove 68 in a predetermined mounting pattern shown in FIG. It should be noted that this mounting pattern is determined by the thread cutting speed (spindle rotation × pitch). For example, although not shown in the dog mounting plate 67, the lathe 1
A dedicated pattern scale is attached. Ie the upper 3
The mounting groove 68 of the book is N0.1 work rest 25A, N0.2 work rest 25B, N when the carriage 5 is moved in the + Z direction.
0.3 + ZN from the bottom to operate the workpiece cradle 25C
0.1 dog 69A, + ZN 0.2 dog 69B, + ZN0.
3 Dogs 69C are mounted in the pattern shown in the figure, and the three lower mounting grooves 68 are N0.1 work rests 25A and N0.2 work rests 25 when the carriage 5 is moved in the -Z direction.
B, N0.3 To operate the work cradle 25C, -ZN0.1 dog 70A, -ZN0.2 dog 70B,-from below.
ZN0.3 dog 70C is attached in the pattern shown in the figure, and in the case of this −Z direction, it is −ZN0.
1 dog 70A, -ZN0.2 dog 70B, -ZN0.3
The dogs 70C are sequentially supported from the N0.3 work pedestal 25C. In the case of thread cutting, right-hand thread cutting is -ZN0.1 dog 70A, -ZN0.2 dog 70B, -ZN0.3 dog 70C side is cutting feed. Activated, + ZN0.1 dog 69
A, + ZN0.2 dog 69B, + ZN0.3 dog 69C
Side operates with fast return, and in the case of left-hand thread, + ZN0.1 dog 69A, + ZN0.2 dog 69B, + ZN0.3 dog 69C side operates with cutting feed, -ZN0.1 dog 70.
A, -ZN0.2 dog 70B, -ZN0.3 dog 70C
The side is programmed to operate in fast forward. The mounting positions and lengths of the dogs 69 and 70 are set by the ascending / descending speed of the working cylinder 26 (for example, 6 m / min),
If the lifting speed exceeds 6 m / min, it is necessary to change the mounting position and length of the dogs 69 and 70.

【0018】このように配設されたドッグ部材66と対
応して往復台5のエプロン73の主軸台3側には検知部
75がブラケット74を介して取付けられている。この
検出部75はボックス状に形成され、同検出部75内に
はドッグ部材66に配設された+ZN0.1 ドッグ69
A,+ZN0.2 ドッグ69B,+ZN0.3 ドッグ69C
および−ZN0.1 ドッグ70A,−ZN0.2 ドッグ70
B,−ZN0.3 ドッグ70Cと対応して+ZN0.1 リミ
ットスイッチ76A,+ZN0.1 リミットスイッチ76
B,+ZN0.3 リミットスイッチ76および−ZN0.1
リミットスイッチ77A,−ZN0.2 リミットスイッチ
77B,+ZN0.3 リミットスイッチ77が図示縦方向
に一列状に配設され、この各リミットスイッチ76,7
7は操作盤のプログラマブル・シーケンス・コントロー
ラに継電されて、各リミットスイッチ76,77が±Z
方向への移動でドッグ69,70を踏むと信号をコント
ローラに入力し、この入力信号によりワーク受台25の
油圧回路を制御して各ワーク受台25を昇降動するよう
に設けられている。
A detecting portion 75 is attached via a bracket 74 to the headstock 3 side of the apron 73 of the carriage 5 corresponding to the dog member 66 thus arranged. The detection unit 75 is formed in a box shape, and the + ZN0.1 dog 69 disposed on the dog member 66 is provided in the detection unit 75.
A, + ZN0.2 dog 69B, + ZN0.3 dog 69C
And -ZN0.1 dog 70A, -ZN0.2 dog 70
Corresponding to B, -ZN0.3 dog 70C, + ZN0.1 limit switch 76A, + ZN0.1 limit switch 76
B, + ZN0.3 Limit switch 76 and -ZN0.1
Limit switches 77A, -ZN0.2 limit switches 77B, + ZN0.3 limit switches 77 are arranged in a line in the vertical direction in the drawing.
7 is relayed to the programmable sequence controller on the operation panel, and each limit switch 76, 77 is ± Z
A signal is input to the controller when the dogs 69 and 70 are stepped by moving in the direction, and the hydraulic circuit of the work receiving table 25 is controlled by this input signal to move up and down each work receiving table 25.

【0019】次に、ねじ切削作業の段取りから加工完了
までのフローチャートを簡単に説明する。 (1) ワークWの径に合わせてヘッドメタル32をヘッド
取付けブラケット28に取付ける。 (2) 操作盤側にねじ切り速度(主軸速度×ピッチ)を設
定する。 (3) 刃物台7に刃具を取付ける。(必要に応じてホルダ
ー付きとする) (4) ワークWを主軸台3と心押し台4との間に取付け
る。 (5) ねじ切り速度に合わせて、各ドッグ69,70をパ
ターン目盛りに合わせて調整する。なお、作動シリンダ
26の昇降速度の調整が必要な場合には油圧回路の電磁
流量制御弁にて行う。 (6) 各ワーク受台25A,25B,25Cを上昇してヘ
ッドメタル32によりワークWを支持する。 (7) ねじ切り開始点に往復台5を移動する。このねじ切
り開始点は右ねじ切削の場合は心押し台4側であり、左
ねじ切削の場合は主軸側である。また、この右ねじの場
合、−ZN0.1 ドッグ70A,−ZN0.2 ドッグ70
B,−ZN0.3 ドッグ70C側が切削送りで作動し、+
ZN0.1 ドッグ69A,+ZN0.2 ドッグ69B,+Z
N0.3 ドッグ69C側は早戻りで作動するようにプログ
ラムされている。この右ねじ切削の場合、上述したよう
にN0.1 ワーク受台25A,N0.2 ワーク受台25B,
N0.3 ワーク受台25Cはその順番が逆になりN0.3 ワ
ーク受台25CがN0.1 となる。また、左ねじ切削の場
合はこの逆にプログラムされている。 (8) 次に、移動振止め6をワークWに対し正確にセット
する。 (9) 操作盤によりプログラムに基づいてねじ切削加工を
開始する。 (10)これにより往復台5が−Z方向へ移動して−ZNO.
1 リミットスイッチ77Aが−ZNO.1 ドッグ70Aを
踏むと、NO.3 ワーク受台26Cが降下し、−ZNO.1
リミットスイッチ77Aが−ZNO.1 ドッグ70Aを外
れると上昇される。 (11)そして−Z方向へ移動するに伴い上記の動作で順次
NO.2 ワーク受台26B、NO.1 ワーク受台26Aが降
下・上昇を行う。 (12)そして第1回目の加工終点になると往復台5は+Z
方向へ早戻り移動を開始する。 (13)往復台5が+Z方向へ移動して+ZNO.1 リミット
スイッチ76Aが+ZNO.1 ドッグ69Aを踏むと、N
O.1 ワーク受台26Aが降下し、+ZNO.1 リミットス
イッチ76Aが+ZNO.1 ドッグ69Aを外れると上昇
される。 (14)そして、順次NO.2 ワーク受台26B、NO.3 ワー
ク受台26Cが降下・上昇を行い、往復台5はねじ切り
開始点に復帰する。 (15)引き続き2回目、3回目…とねじ切りサイクルが繰
り返されプログラム終了にて加工終了となる。 以下、上記手順によりワークWに順次ねじ加工を施すも
のである。
Next, a flow chart from setup of screw cutting work to completion of processing will be briefly described. (1) Mount the head metal 32 to the head mounting bracket 28 according to the diameter of the work W. (2) Set the thread cutting speed (spindle speed x pitch) on the operation panel side. (3) Attach the cutting tool to the tool rest 7. (A holder is provided if necessary.) (4) Mount the work W between the headstock 3 and tailstock 4. (5) Adjust each dog 69, 70 according to the pattern scale according to the thread cutting speed. When it is necessary to adjust the ascending / descending speed of the working cylinder 26, the electromagnetic flow control valve of the hydraulic circuit is used. (6) The work supports 25A, 25B, 25C are lifted to support the work W by the head metal 32. (7) Move the carriage 5 to the threading start point. This thread cutting start point is on the tailstock 4 side in the case of right-hand thread cutting, and is on the spindle side in the case of left-hand thread cutting. Also, in the case of this right-hand thread, -ZN0.1 dog 70A, -ZN0.2 dog 70
B, -ZN0.3 Dog 70C side operates by cutting feed,
ZN0.1 Dog 69A, + ZN0.2 Dog 69B, + Z
The N0.3 dog 69C side is programmed to operate in fast rewind. In the case of this right-hand thread cutting, as described above, the N0.1 work cradle 25A, the N0.2 work cradle 25B,
The order of the N0.3 work cradle 25C is reversed and the N0.3 work cradle 25C becomes N0.1. In the case of left-hand thread cutting, the reverse is programmed. (8) Next, the movement stop 6 is accurately set on the work W. (9) Start screw cutting based on the program on the operation panel. (10) As a result, the carriage 5 moves in the -Z direction and -ZNO.
1 When the limit switch 77A steps on the -ZNO.1 dog 70A, the NO.3 work support 26C descends, and -ZNO.1
It is raised when the limit switch 77A comes off the -ZNO.1 dog 70A. (11) Then, as it moves in the −Z direction, the No. 2 work pedestal 26B and the No. 1 work pedestal 26A descend and rise in sequence by the above operation. (12) And the carriage 5 is + Z at the end of the first machining.
Starts a quick return movement in the direction. (13) When the carriage 5 moves in the + Z direction and the + ZNO.1 limit switch 76A steps on the + ZNO.1 dog 69A, N
The O.1 work cradle 26A is lowered, and the + ZNO.1 limit switch 76A is raised when the + ZNO.1 dog 69A is disengaged. (14) Then, the No. 2 work pedestal 26B and the No. 3 work pedestal 26C descend and rise sequentially, and the carriage 5 returns to the thread cutting start point. (15) Subsequently, the thread cutting cycle is repeated for the second time, the third time, etc., and the machining ends when the program ends. Hereinafter, the work W is sequentially thread-processed by the above procedure.

【0020】このように、本実施例においては配設した
作動シリンダ26に応じて+Z方向および−Z方向にそ
れぞけ対応して+ZN0.1 ドッグ69A,+ZN0.2 ド
ッグ69B,+ZN0.3 ドッグ69Cおよび−ZN0.1
ドッグ70A,−ZN0.2 ドッグ70B,−ZN0.3 ド
ッグ70Cを配設したものであるから、右ねじと左ねじ
の切削加工に際し、一方を切削送りにすると他方を早戻
りにプログラムすることができて、ねじ切り速度と早戻
り速度に対処して各ワーク受台26の上下動作をより効
率的に行うことができて加工能率を向上することができ
る。また、作動シリンダ26に並設して複動回り止め部
36を設けたので作動シリンダ26の上下動作によりワ
ークWに対するヘッドメタル32の位置ずれを生ずるこ
とがなく、また、この複動回り止め部36の下部側にシ
リンダ減速部50を設けたことで作動シリンダ26の上
昇時、ワークWに当たるヘッドメタル32の衝撃をやわ
らげることができて、切削面への影響を防止することが
できて製品品質を確保することができる。また、往復台
5の±Z方向への動きとワーク受台26上下動との関係
は、それぞれの速度に合わせて各ドッグの位置や油圧作
動油量により段取り調整時に行われるが、何等かのトラ
ブルによりワーク受台26の降下作動に遅れを生じた場
合、往復台5の下面に前後に突出する衝突棒58を有す
る衝突防止装置55を設けたので、この衝突棒58が緩
衝的に衝突すると内装したリミットスイッチ62の作動
により往復台5の送りが停止され、同往復台5の衝突を
防止することができる。
As described above, in this embodiment, the + ZN0.1 dog 69A, the + ZN0.2 dog 69B, and the + ZN0.3 dog are provided corresponding to the + Z direction and the -Z direction, respectively, depending on the working cylinder 26 provided. 69C and -ZN0.1
Since dog 70A, -ZN0.2 dog 70B, -ZN0.3 dog 70C are arranged, when cutting the right-hand thread and the left-hand thread, if one feeds the cutting feed, the other can be programmed to rewind. By doing so, it is possible to more efficiently perform the vertical movements of the respective work pedestals 26 by coping with the screw cutting speed and the quick return speed, and it is possible to improve the machining efficiency. Further, since the double acting detent portion 36 is provided in parallel with the working cylinder 26, the head metal 32 is not displaced with respect to the work W due to the vertical movement of the working cylinder 26, and the double acting detent portion is also provided. By providing the cylinder deceleration portion 50 on the lower side of 36, the impact of the head metal 32 that hits the work W can be softened when the working cylinder 26 rises, and the influence on the cutting surface can be prevented. Can be secured. Further, the relationship between the movement of the carriage 5 in the ± Z direction and the vertical movement of the work cradle 26 is performed at the time of setup adjustment depending on the position of each dog and the hydraulic oil amount according to each speed. When the descent operation of the work cradle 26 is delayed due to a trouble, since the collision preventing device 55 having the collision rod 58 projecting forward and backward is provided on the lower surface of the carriage 5, if the collision rod 58 collides as a buffer. The feed of the carriage 5 is stopped by the operation of the internal limit switch 62, and the collision of the carriage 5 can be prevented.

【0021】なお、上記実施例ではワーク受台26を3
個配設して例示したが、このワーク受台26の個数は旋
盤の長さにより決定される。また、ワークWの長さによ
り使用ワーク受台26の台数を決定するもので、使用の
要、不要は操作盤側の選択スイッチにより行われる。
It should be noted that, in the above-mentioned embodiment, the work receiving table 26 is set to 3
The number of the work cradle 26 is determined by the length of the lathe. Further, the number of the work holders 26 to be used is determined by the length of the work W, and the necessity of use is determined by the selection switch on the operation panel side.

【0022】[0022]

【発明の効果】本発明は、上記構成としたことにより、
ベッドに配設した作動シリンダに応じて+Z方向および
−Z方向にそれぞけ対応して+Z用ドッグおよび−Z用
ドッグを配設したものであるから、右ねじと左ねじの切
削加工に際し、一方を切削送りにすると他方を早戻りに
プログラムすることができて、ねじ切り速度と早戻り速
度に対処して各ワーク受台の上下動作をより効率的に行
うことができて加工能率を向上することができる。ま
た、作動シリンダに並設して複動回り止め部を設けたの
で作動シリンダの上下動作によりワークに対するヘッド
メタルの位置ずれを生ずることがなく、また、この複動
回り止め部の下部側にシリンダ減速部を設けたことで作
動シリンダの上昇時、ワークWに当たるヘッドメタルの
衝撃をやわらげることができて、切削面への影響を防止
することができて製品品質を確保することができる。ま
た、往復台5の±Z方向への動きとワーク受台の上下動
との関係は、それぞれの速度に合わせて各ドッグの位置
や油圧作動油量により段取り調整時に行われるが、何等
かのトラブルによりワーク受台の降下作動に遅れを生じ
た場合、往復台の下面に前後に突出する衝突棒を有する
衝突防止装置を設けたので、この衝突棒が緩衝的に衝突
すると内装したリミットスイッチの作動により往復台の
送りが停止され、同往復台の衝突を防止することができ
る。
The present invention has the above-mentioned structure,
Since the + Z dog and the -Z dog are arranged corresponding to the + Z direction and the -Z direction, respectively, according to the working cylinder arranged on the bed, when cutting the right-hand thread and the left-hand thread, If one of them is set as the cutting feed, the other can be programmed for fast return, and the vertical movement of each work cradle can be performed more efficiently by coping with the thread cutting speed and the fast return speed, thus improving the machining efficiency. be able to. In addition, since the double-acting detent portion is provided in parallel with the working cylinder, the vertical movement of the working cylinder does not cause the displacement of the head metal with respect to the workpiece, and the double-acting detent portion is provided on the lower side of the cylinder. By providing the deceleration portion, it is possible to soften the impact of the head metal that hits the work W when the working cylinder rises, prevent the influence on the cutting surface, and ensure product quality. Further, the relationship between the movement of the carriage 5 in the ± Z direction and the vertical movement of the work cradle is performed at the time of setup adjustment depending on the position of each dog and the hydraulic oil amount according to each speed. If a delay occurs in the lowering operation of the work cradle due to a trouble, a collision prevention device with a collision rod protruding forward and backward is provided on the lower surface of the carriage, so if the collision rod collides in a buffer, the limit switch By the operation, the feeding of the carriage is stopped, and the collision of the carriage can be prevented.

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

【図1】旋盤の正面図である。FIG. 1 is a front view of a lathe.

【図2】移動振止めの断面図である。FIG. 2 is a cross-sectional view of a moving swing stop.

【図3】ワーク受部の取付け位置の断面図である。FIG. 3 is a cross-sectional view of a mounting position of a work receiving portion.

【図4】ワーク受部の正面図である。FIG. 4 is a front view of a work receiving portion.

【図5】ワーク受部の平面図である。FIG. 5 is a plan view of a work receiving portion.

【図6】ワーク受部と複動回り止め部との連結を示す拡
大図である。
FIG. 6 is an enlarged view showing the connection between the work receiving portion and the double-acting rotation preventing portion.

【図7】複動回り止め部の断面図である。FIG. 7 is a cross-sectional view of a double acting detent portion.

【図8】シリンダ減速部の取付けを示す側面図である。FIG. 8 is a side view showing the attachment of a cylinder speed reducer.

【図9】同じくシリンダ減速部の取付けを示す正面図で
ある。
FIG. 9 is a front view showing the mounting of the cylinder speed reducer.

【図10】衝突防止装置の平面図である。FIG. 10 is a plan view of the collision prevention device.

【図11】衝突防止装置の取付け状態を示す正面図であ
る。
FIG. 11 is a front view showing a mounted state of the collision prevention device.

【図12】衝突防止装置の取付け状態を示す平面図であ
る。
FIG. 12 is a plan view showing an attached state of the collision prevention device.

【図13】衝突防止装置の取付け状態を示す側面図であ
る。
FIG. 13 is a side view showing a mounted state of the collision prevention device.

【図14】受台昇降作動部の検出部の取付けを示す正面
図である。
FIG. 14 is a front view showing the attachment of the detection unit of the pedestal lift operation unit.

【図15】ドッグ部材の断面図である。FIG. 15 is a sectional view of a dog member.

【図16】受台昇降作動部の側面図である。FIG. 16 is a side view of a pedestal lift operation unit.

【図17】ドッグ部材のドッグの取付けパターンを示す
正面図である。
FIG. 17 is a front view showing a dog attachment pattern of the dog member.

【図18】受台昇降作動部の正面図である。FIG. 18 is a front view of a cradle lifting / lowering operation unit.

【図19】従来のワーク受台の斜視図である。FIG. 19 is a perspective view of a conventional work cradle.

【符号の説明】[Explanation of symbols]

1 旋盤 2 ベッド 5 往復台 22 ベッドの谷底部 25 ワーク受台 26 作動シリンダ 36 複動回り止め部 50 シリンダ減速部 55 衝突防止装置 58 衝突棒 65 受台昇降作動部 69,70 ドッグ 75 検知部 W ワーク 1 Lathe 2 Bed 5 Reciprocating Bed 22 Valley Bottom of Bed 25 Work Stand 26 Working Cylinder 36 Double-acting Rotation Stopper 50 Cylinder Speed Reducer 55 Collision Preventer 58 Collision Rod 65 Cradle Lifting Actuator 69, 70 Dog 75 Detector W work

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 長尺のワークにねじ加工を施す旋盤にお
いて、該旋盤のベッドの谷底部の長手方向に沿って配設
され、複動回り止め部を連繋して上下動する複数の作動
シリンダと、この複動回り止め部の下端部に作動シリン
ダの上昇速度を減速するシリンダ減速部からなるワーク
受部を配設し、前記ベッドと該ベッドのZ軸方向に移動
される往復台間には前記複数のワーク受台に対応して±
Z方向に所定のパターンで位置調整可能に±Z用ドッグ
を並設し、かつ往復台側にこれら各±Z用ドッグに接離
して電気信号により前記ワーク受台を上下動可能とする
検出部とからなる受台昇降作動部を設けて、前記往復台
の±Z方向の移動時に前記±Z用ドッグの一方を切削送
りに、他方を早戻りに変更可能に設け、前記往復台には
前記作動シリンダの配列線上に沿って±Z軸方向へ突出
する衝突軸を弾着した衝突防止装置を配設する構成とし
た旋盤における長尺ワーク振止め装置。
1. A lathe for threading a long workpiece, wherein a plurality of working cylinders are arranged along a longitudinal direction of a root portion of a bed of the lathe and are vertically moved by linking double-acting detents. And a work receiving portion, which is a cylinder speed reducing portion for reducing the rising speed of the working cylinder, is disposed at the lower end of the double-action detent portion, and is disposed between the bed and the carriage that is moved in the Z-axis direction of the bed. Corresponds to the above-mentioned multiple work supports.
A detection unit in which ± Z dogs are arranged side by side in a predetermined pattern in the Z direction so that they can be moved up and down by an electric signal by contacting and separating each ± Z dog on the reciprocating table side. Is provided so that one of the ± Z dogs can be changed to cutting feed and the other can be changed to fast return when the carriage is moved in the ± Z directions. A long work swinging device in a lathe having a structure in which a collision prevention device is mounted, which has a collision shaft projecting in the ± Z axis direction along the arrangement line of the working cylinders.
JP13150492A 1992-04-24 1992-04-24 Automatic lifting device Expired - Lifetime JP2669994B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13150492A JP2669994B2 (en) 1992-04-24 1992-04-24 Automatic lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13150492A JP2669994B2 (en) 1992-04-24 1992-04-24 Automatic lifting device

Publications (2)

Publication Number Publication Date
JPH05301135A true JPH05301135A (en) 1993-11-16
JP2669994B2 JP2669994B2 (en) 1997-10-29

Family

ID=15059572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13150492A Expired - Lifetime JP2669994B2 (en) 1992-04-24 1992-04-24 Automatic lifting device

Country Status (1)

Country Link
JP (1) JP2669994B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014111952A (en) * 2012-12-05 2014-06-19 Mitsubishi Heavy Ind Ltd Feeder
CN110842219A (en) * 2019-12-18 2020-02-28 广东博克斯智能机床科技有限公司 Double-end numerical control machine tool
CN110948247A (en) * 2019-12-27 2020-04-03 广西玉柴机器股份有限公司 Adjustable nail ejecting tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014111952A (en) * 2012-12-05 2014-06-19 Mitsubishi Heavy Ind Ltd Feeder
CN110842219A (en) * 2019-12-18 2020-02-28 广东博克斯智能机床科技有限公司 Double-end numerical control machine tool
CN110842219B (en) * 2019-12-18 2024-05-28 广东博克斯智能机床科技有限公司 Double-end digit control machine tool
CN110948247A (en) * 2019-12-27 2020-04-03 广西玉柴机器股份有限公司 Adjustable nail ejecting tool

Also Published As

Publication number Publication date
JP2669994B2 (en) 1997-10-29

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