JPH0929505A - Device for processing bar material and method of processing the same - Google Patents

Device for processing bar material and method of processing the same

Info

Publication number
JPH0929505A
JPH0929505A JP18546795A JP18546795A JPH0929505A JP H0929505 A JPH0929505 A JP H0929505A JP 18546795 A JP18546795 A JP 18546795A JP 18546795 A JP18546795 A JP 18546795A JP H0929505 A JPH0929505 A JP H0929505A
Authority
JP
Japan
Prior art keywords
bar
main shaft
rod
lathe
gripping
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
JP18546795A
Other languages
Japanese (ja)
Inventor
Ryuzo Ito
隆三 伊藤
Kenji Sato
憲治 佐藤
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.)
IKURA SEIKI SEISAKUSHO KK
Original Assignee
IKURA SEIKI SEISAKUSHO KK
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 IKURA SEIKI SEISAKUSHO KK filed Critical IKURA SEIKI SEISAKUSHO KK
Priority to JP18546795A priority Critical patent/JPH0929505A/en
Publication of JPH0929505A publication Critical patent/JPH0929505A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To reduce advancing drive force or propulsion force acting on a feed arrow not only in a process for cutting a product in which a main shaft of an automatic lathe moves longitudinally but in a process for moving back the main shaft in which a chuck of the main shaft opens to move the main shaft to backward. SOLUTION: A bar material supply machine 1 supplies the bar material W to a main shaft 21 of a lathe. A magnetic clutch 17 of a bar material supply machine is released and drive force of a feed arrow 13 is released in whole of process for cutting a product. The main shaft 21 and the feed arrow 13 are relatively coupled through a power transmission device 3 in synchronous association and the feed arrow 13 is synchronous with longitudinal movement of the main shaft 21 and moves longitudinally. A holding device 50 closes a holding member 51 to hold the bar material W for restricting its longitudinal movement just before the main shaft 21 which finished respective product processing (every product processing) opens a collet chuck 22 and the transmission device 3 blocks a transmission path with the main shaft 21 and the feed arrow 13 by releasing the magnetic clutch 34. The holding device 50 releases the holding member and the transmission device 3 fastens the magnetic clutch 34 just after the main shaft moves backward and the collet chuck closes.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、棒材加工装置及び棒材
加工方法に関するものであり、より詳細には、主軸移動
型の自動旋盤と自動棒材供給機とを含み、自動旋盤の製
品加工工程に関連して、自動棒材供給機によって棒材を
自動旋盤に供給する棒材加工装置及び棒材加工方法に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar processing apparatus and a bar processing method, and more particularly to a product of an automatic lathe including an automatic lathe of a spindle moving type and an automatic bar feeder. The present invention relates to a bar material processing apparatus and a bar material processing method for supplying a bar material to an automatic lathe by an automatic bar material feeder in relation to a processing step.

【0002】[0002]

【従来の技術】予め設定された製品加工プログラムに基
づいて棒材の先端部分に切削加工を施すNC旋盤などの
自動旋盤が広く実用に供されている。この種の旋盤にお
いて、棒材の軸線方向に移動可能な主軸と、該棒材に旋
削加工を施す加工工具とを備えた主軸移動型旋盤が知ら
れている。主軸移動型旋盤の主軸は、棒材を高速回転さ
せつつ、製品加工プログラムに応じて軸線方向に移動さ
せ、また、加工工具は、主軸の前方で棒材を切削し、所
定の製品を加工するとともに、加工した製品を棒材の先
端部分から突切る。製品の突切り後、主軸は、コレット
チャックを開放して後退し、コレットチャックを再び閉
じ、棒材の後方部分を把持し直す。次いで、自動旋盤
は、製品切削工程に移行し、主軸を所定の移動設定量だ
け前進させつつ、棒材を回転させ、切削工具により製品
を切削加工する。
2. Description of the Related Art Automatic lathes, such as NC lathes, for cutting the tip of a bar based on a preset product processing program are widely used. In this type of lathe, there is known a spindle moving type lathe including a spindle that can move in the axial direction of a rod and a processing tool that performs a turning process on the rod. The main spindle of the main spindle moving type lathe moves the rod in the axial direction according to the product machining program while rotating the rod at a high speed, and the machining tool cuts the rod in front of the main spindle to machine a predetermined product. At the same time, the processed product is cut off from the tip of the bar. After the product is cut off, the spindle retreats by opening the collet chuck, closing the collet chuck again, and re-grabbing the rear part of the bar. Next, the automatic lathe shifts to the product cutting process, rotates the bar material while advancing the main shaft by a predetermined movement setting amount, and cuts the product with the cutting tool.

【0003】また、比較的長尺の棒材を自動旋盤に対し
て自動的に供給するように構成された自動棒材供給機が
知られている。かかる棒材供給機は、棒材を自動旋盤に
供給する棒材供給手段を備えており、棒材供給手段は、
棒材を自動旋盤に向かって給送する棒材送り部材と、駆
動モータ及びチェーン等から構成される棒材送り部材の
駆動装置とを備えている。駆動装置は一般に、送り矢等
の棒材送り部材に対し、前進方向の駆動力又は推力(ス
ラスト力)を常時付与しており、棒材送り部材は、自動
旋盤による主軸の運動に対して、遅滞なく追随し、円滑
に前進する。このような主軸移動型自動旋盤及び棒材供
給機からなる棒材加工装置において、自動旋盤の主軸又
は主軸台と棒材供給機の送り矢とを選択的に連動させる
ことにより、送り矢の上記前進駆動力を低減するように
構成された棒材供給方法が、特公平6─88165号公
報に開示されている。この棒材供給方法によれば、自動
旋盤の主軸又は主軸台が前後動している間、主軸の運動
は送り矢に機械的に伝達され、主軸と送り矢とは実質的
に一体的に前後動する。従って、前後動する主軸に対し
て送り矢が遅滞なく追随するように送り矢に常時付与さ
れていた前進駆動力を軽減することができる。
There is also known an automatic bar feeder configured to automatically supply a relatively long bar to an automatic lathe. The bar material feeder is provided with bar material supplying means for supplying the bar material to the automatic lathe, and the bar material supplying means is
A bar material feeding member for feeding the bar material toward the automatic lathe and a drive device for the bar material feeding member including a drive motor and a chain are provided. Generally, a drive device always applies a forward driving force or thrust (thrust force) to a bar material feeding member such as a feed arrow, and the bar material feeding member responds to the movement of a spindle by an automatic lathe. Follow without delay and move forward smoothly. In a bar processing apparatus comprising such a spindle moving type automatic lathe and a bar feeder, by selectively interlocking the spindle or headstock of the automatic lathe with the feed arrow of the bar feeder, Japanese Patent Publication No. 6-88165 discloses a bar material feeding method configured to reduce the forward drive force. According to this bar material feeding method, while the main spindle or headstock of the automatic lathe is moving back and forth, the movement of the main spindle is mechanically transmitted to the feed arrow, so that the main spindle and the feed arrow move substantially integrally back and forth. Move. Therefore, it is possible to reduce the forward drive force that is always applied to the feed arrow so that the feed arrow follows the main shaft that moves back and forth without delay.

【0004】[0004]

【発明が解決しよとうする課題】しかしながら、自動旋
盤の主軸がコレットチャックを開放して後退するとき
に、主軸に挿通した棒材は、主軸によって後方に付勢又
は押圧され、主軸の後退に伴って後退してしまうことが
ある。このため、上記特公平6─88165号公報に開
示された棒材供給方法を採用したとしても、ある程度の
前進駆動力を実質的に常時、送り矢に加え続けるか、或
いは、少なくとも主軸の後退時に所定の前進駆動力を過
渡的に送り矢に付与せざるを得ない。この種の前進駆動
力は、軸方向圧縮荷重として棒材に作用するので、殊に
長尺且つ細物の棒材を加工する旋盤及び棒材供給機にお
いては、棒材の撓み又は曲がり等を生じさせ易く、製品
不良等を生じさせる原因となり得る。
However, when the main shaft of the automatic lathe is retracted by opening the collet chuck, the rod inserted into the main shaft is urged or pressed rearward by the main shaft to retreat the main shaft. There are times when it retreats. Therefore, even if the bar feeding method disclosed in Japanese Patent Publication No. 6-88165 is adopted, a certain degree of forward driving force is substantially constantly applied to the feed arrow, or at least when the spindle is retracted. There is no choice but to transiently apply a predetermined forward drive force to the feed arrow. This type of forward drive force acts on the bar as an axial compressive load, so in particular in lathes and bar feeders that process long and thin bars, the bending or bending of the bar is prevented. It is likely to occur, and may cause product defects.

【0005】本発明は、かかる点に鑑みてなされたもの
であり、その目的とするところは、製品を切削加工すべ
く自動旋盤の主軸が前後動する製品切削工程のみなら
ず、主軸のチャックが開放して主軸が後退する主軸後退
工程においても、送り矢に作用する前進駆動力又は推進
力を低減することができる棒材加工装置及び棒材加工方
法を提供することにある。
The present invention has been made in view of the above points, and an object thereof is not only a product cutting step in which a spindle of an automatic lathe moves back and forth to cut a product, but also a chuck of the spindle. It is an object of the present invention to provide a bar material processing apparatus and a bar material processing method capable of reducing the forward drive force or the propulsive force acting on the feed arrow even in the main shaft retracting step in which the main shaft retracts by opening.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、棒材の軸線方向に移動可能な主軸および
該棒材に旋削加工を施す加工工具を備えた主軸移動型旋
盤と、該旋盤の製品加工工程に関連して前記棒材を所定
の移動設定量ずつ前記旋盤に供給する棒材供給機とを有
し、該棒材供給機は、棒材補給手段によって補給された
棒材を前記旋盤に供給する棒材供給手段を備え、該棒材
供給手段は、前記棒材を前記旋盤に向かって給送する棒
材送り部材と、該棒材送り部材を駆動する駆動装置とを
備えた棒材加工装置において、前記駆動装置と前記棒材
送り部材との間の駆動力伝達経路を解放する駆動力解放
手段と、前記主軸と前記棒材送り部材とを相互連結する
動力伝達経路を有し、前記棒材送り部材の運動を前記主
軸の運動と機械的に連動させる動力伝達装置と、該動力
伝達装置に介装され、前記棒材送り矢部材と前記主軸と
の連動を解除する連動解除装置と、閉位置にて前記棒材
を把持して該棒材の軸線方向の移動を禁止し、開位置に
て前記棒材を解放する把持装置と、前記旋盤の切削工程
において前記動力伝達装置を作動させ且つ前記把持装置
を開位置に保持し、前記主軸が前記棒材を解放するとき
に前記把持装置を閉位置に切り換え、前記主軸の後退時
に前記連動解除装置を作動させる連動/把持制御装置と
を備えたことを特徴とする棒材加工装置を提供する。
In order to achieve the above object, the present invention provides a main spindle moving type lathe equipped with a main spindle which is movable in the axial direction of a bar and a machining tool for turning the bar. A bar material supplying device for supplying the bar material to the lathe at a predetermined movement set amount in relation to a product processing step of the lathe, the bar material supplying device being supplied by a bar material supplying means. A bar material supplying means for supplying a bar material to the lathe, the bar material supplying means supplies a bar material to the lathe, and a drive device for driving the bar material feeding member. And a driving force releasing means for releasing a driving force transmission path between the driving device and the rod feeding member, and a power for interconnecting the main shaft and the rod feeding member. A transmission path is provided, and the movement of the bar feed member is mechanically coupled with the movement of the main shaft. A power transmission device to be interlocked, an interlock release device interposed in the power transmission device to release the interlocking of the rod feed arrow member and the main shaft, and the rod member gripping the rod member at the closed position. Of the gripping device that prohibits the movement of the rod in the axial direction and releases the bar at the open position, and the power transmission device is operated and the gripping device is held at the open position in the cutting process of the lathe. Provided is a bar processing apparatus, comprising: an interlocking / gripping control device that switches the gripping device to a closed position when releasing the bar and operates the interlock releasing device when the spindle is retracted. .

【0007】上記構成の棒材加工装置によれば、駆動力
解放手段は、駆動力伝達経路を解放し、棒材送り部材に
与えられる駆動力を軽減ないし消失させ、動力伝達装置
は、棒材送り部材を主軸と連動させる。従って、棒材の
回転切削時に旋盤の主軸が前後動している間、棒材送り
部材は主軸と実質的に一体的に前後動し、主軸の運動に
対して遅滞なく追随する。また、1個の製品を加工した
後、主軸のチャックが解放する際に、把持装置が棒材を
把持し且つ連動解除装置が棒材送り部材と主軸との連動
を解除するので、主軸の後退時に棒材の軸線方向の移動
は禁止される。従って、駆動力解放手段は、主軸後退時
においても、駆動力伝達経路を解放し続け、棒材送り部
材に対する駆動力を軽減ないし消失させることができ
る。かくして、上記構成の棒材加工装置によれば、棒材
の新材を旋盤の主軸に挿通するための1次給送時又はシ
ョートカット給送時を除き、製品加工工程全般に亘っ
て、棒材送り部材に対する駆動力を軽減ないし消失さ
せ、これにより、軸方向圧縮荷重により生じ得る棒材の
撓み又は曲がり等を確実に防止することができる。
According to the above-described bar processing apparatus, the driving force releasing means releases the driving force transmission path to reduce or eliminate the driving force applied to the rod feeding member, and the power transmission device uses the rod. Interlock the feed member with the spindle. Therefore, while the main shaft of the lathe is moving back and forth during rotary cutting of the bar, the bar feed member moves back and forth substantially integrally with the main shaft, and follows the movement of the main shaft without delay. Further, after machining one product, when the chuck of the main shaft is released, the gripping device grips the bar material and the interlock releasing device releases the interlocking between the bar material feeding member and the main shaft. At times, axial movement of the bar is prohibited. Therefore, the driving force releasing means can continue to release the driving force transmission path even when the spindle is retracted, and reduce or eliminate the driving force for the rod feeding member. Thus, according to the bar processing apparatus having the above-described configuration, the bar is processed over the entire product processing process except during the primary feeding for inserting the new bar into the lathe spindle or the shortcut feeding. By reducing or eliminating the driving force applied to the feeding member, it is possible to reliably prevent the bending or bending of the bar that may be caused by the axial compressive load.

【0008】本発明の好ましい実施態様においては、前
記把持装置は、前記棒材を把持する一対の把持部材と、
該把持部材を閉位置及び開位置に選択的に変位させる把
持部材作動装置とを備える。他の好適な実施態様によれ
ば、前記把持装置は、前記旋盤のグリップからなる。更
に好ましくは、前記駆動力解放手段及び前記連動解除装
置は夫々、選択的に締結又は解放可能な電磁クラッチか
らなる。本発明は更に、棒材の軸線方向に移動可能な主
軸および該棒材に旋削加工を施す加工工具を備えた主軸
移動型旋盤と、棒材を前記旋盤の製品加工工程に関連し
て該旋盤の主軸に給送することができる棒材供給機とを
使用し、前記棒材供給機の駆動装置によって該棒材供給
機の棒材送り部材に駆動力を付与し、前記棒材の先端部
分を前記主軸に挿通させ、前記主軸の前後動により、前
記製品加工工程に関連して、前記棒材を所定の移動設定
量ずつ前進させ、複数の製品を棒材の先端部分から製造
する棒材加工方法において、前記棒材送り部材に付与さ
れる駆動力を解除し、前記棒材送り部材と前記主軸とを
動力伝達経路を介して機械的に相互連結して、前記棒材
送り部材を前記主軸の前後動と連動させ、前記主軸が前
記棒材を解放するときに、前記棒材を棒材把持手段で把
持して、該棒材の前後動を禁止するとともに、前記動力
伝達経路を遮断して、前記棒材送り部材と前記主軸との
連動を解除し、前記主軸を前記移動設定量だけ後退させ
て、該主軸のチャックを閉じ、前記動力伝達経路を接続
して、前記棒材送り部材を前記主軸の前後動と連動させ
るとともに、前記棒材把持手段を開放して、前記棒材を
前後動可能に解放することを特徴とする棒材加工方法を
提供する。
In a preferred aspect of the present invention, the gripping device includes a pair of gripping members for gripping the rod.
And a gripping member actuating device for selectively displacing the gripping member between a closed position and an open position. According to another preferred embodiment, the gripping device comprises a grip of the lathe. More preferably, each of the driving force releasing means and the interlock releasing device is an electromagnetic clutch that can be selectively engaged or released. The present invention further relates to a spindle moving type lathe equipped with a spindle movable in the axial direction of the bar and a machining tool for turning the bar, and the lathe in connection with the lathe product machining process. And a rod material feeder capable of feeding to a main shaft of the rod material, and a driving force is applied to a rod material feeding member of the rod material feeder by a driving device of the rod material feeder, and a tip portion of the rod material is used. Through the main shaft, and by the forward and backward movement of the main shaft, in relation to the product processing step, the rod is advanced by a predetermined movement set amount, and a plurality of products are manufactured from the tip portion of the rod. In the processing method, the driving force applied to the rod feeding member is released, the rod feeding member and the main shaft are mechanically interconnected via a power transmission path, and the rod feeding member is In conjunction with the longitudinal movement of the spindle, when the spindle releases the bar, The rod is gripped by the rod gripping means to prohibit the longitudinal movement of the rod, and the power transmission path is cut off to release the interlocking between the rod feed member and the main shaft. By retreating by the movement set amount, closing the chuck of the main shaft, connecting the power transmission path, interlocking the rod member feeding member with the longitudinal movement of the main shaft, and opening the rod member gripping means. A bar processing method is provided, in which the bar is released so as to be movable back and forth.

【0009】本発明の上記構成によれば、棒材の先端部
分が主軸を挿通した後に開始する製品加工工程におい
て、棒材送り部材に与えられる駆動力は解除され、棒材
送り部材は動力伝達経路により主軸の前後動と連動す
る。また、1個の製品加工の終了後に、主軸のチャック
が開放し且つ主軸が後退する間、棒材が棒材把持手段で
拘束され且つ棒材送り部材と主軸との連動が解除され
る。従って、実質的に製品加工工程全般に亘って、棒材
に作用し得る軸方向圧縮荷重を大幅に軽減し又は完全に
消失せしめ、棒材の撓み又は曲がり等を確実に防止する
ことができる。本発明の好ましい実施態様によれば、棒
材の新材のショートカット給送時に前記棒材送り部材に
駆動力が付与され、該ショートカット給送完了後に該駆
動力が解除された後、前記新材から製造可能な製品の全
数が製造されるまで、前記駆動力の解除状態が維持され
る。更に好ましくは、前記ショートカット給送完了後に
前記棒材送り部材に作用する前進方向及び後退方向の駆
動力が実質的に零になるように、前記駆動装置と前記棒
材送り部材との間の駆動力伝達経路が完全に遮断され
る。
According to the above configuration of the present invention, the driving force applied to the rod feeding member is released and the rod feeding member transmits power in the product processing step started after the tip portion of the rod is inserted through the main shaft. It is interlocked with the longitudinal movement of the spindle depending on the route. Further, after the processing of one product is finished, while the chuck of the main shaft is opened and the main shaft is retracted, the bar is restrained by the bar gripping means and the interlock between the bar feed member and the main shaft is released. Therefore, it is possible to substantially reduce or completely eliminate the axial compressive load that can act on the bar material substantially throughout the entire product processing process, and it is possible to reliably prevent the bar material from bending or bending. According to a preferred embodiment of the present invention, a driving force is applied to the bar feeding member at the time of shortcut feeding of a new bar material, and the driving force is released after completion of the shortcut feeding, and then the new material is The release state of the driving force is maintained until all the products that can be manufactured from are manufactured. More preferably, the drive between the drive unit and the bar feed member is such that the driving force in the forward and backward directions acting on the bar feed member after completion of the shortcut feeding is substantially zero. The force transmission path is completely cut off.

【0010】[0010]

【実施例】以下、添付図面を参照して、本発明に係る棒
材供給方法の好ましい実施例について、詳細に説明す
る。図1は、本発明の実施例に係る棒材供給方法を実施
するための自動旋盤及び棒材供給機を示す概略平面図で
ある。また、図2は、製品切削完了直後の状態を示す自
動旋盤及び棒材供給機の概略平面図であり、図3は、主
軸後退時の状態を示す自動旋盤及び棒材供給機の概略平
面図である。図1に示すように、棒材加工装置は、棒材
Wを供給する棒材供給機1と、棒材Wの先端部分を切削
加工し、所望の製品を棒材Wの先端部から突切る旋盤2
とから構成される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a bar material feeding method according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic plan view showing an automatic lathe and a bar material supplying machine for carrying out a bar material supplying method according to an embodiment of the present invention. Further, FIG. 2 is a schematic plan view of the automatic lathe and the bar material feeder showing the state immediately after the completion of product cutting, and FIG. 3 is a schematic plan view of the automatic lathe and the bar material feeder showing the state when the spindle is retracted. Is. As shown in FIG. 1, the bar processing apparatus cuts a tip part of the bar W with a bar feeder 1 that supplies a bar W and cuts a desired product from the tip of the bar W. Lathe 2
It is composed of

【0011】棒材供給機1は、本体フレーム11と、送
り矢13を含む棒材供給機構と、補給すべき複数の棒材
の新材W′(即ち、ストック材)を保持する棒材補給機
構とを備えている。本体フレーム11は、複数のスタン
ド(図示せず)によって支持され、旋盤2の加工軸線X
−Xに沿って延びている。棒材補給機構は、新材Wを載
置可能な材料棚12を備えており、材料棚12は、本体
フレーム11の側部に配置された複数の棚部材12aを
有する。各棚部材12aは、棒材供給機1の長手方向に
所定の間隔を隔てて配置され、本体フレーム11から側
方に突出しており、補給すべき新材W′を支持する。棒
材供給機1の棒材供給機構は、棒材Wを旋盤2に対して
供給するための上記送り矢13と、送り矢13に駆動力
又は推力を伝達する無端チェーン14(一部のみ図示さ
れている)とを備えている。無端チェーン14の上位走
行帯は、加工軸線X─Xと平行に延在しており、一般に
羽根と呼ばれる送り矢13の後端部13aが無端チェー
ン14の上位走行帯に係止される。送り矢13は、本体
フレーム11上に固定されたガイドレール(図示せず)
によって、加工軸線X−Xに沿って前後方向に往復動可
能に案内される。また、棒材Wの後端部を把持するため
のフィンガーチャック13bが、送り矢13の前端部に
回転自在に取付けられている。
The bar material feeder 1 includes a main body frame 11, a bar material supply mechanism including a feed arrow 13, and a bar material replenishment for holding a plurality of new bar materials W '(that is, stock materials) to be replenished. And a mechanism. The body frame 11 is supported by a plurality of stands (not shown), and the machining axis X of the lathe 2 is supported.
-Extends along X. The bar replenishing mechanism includes a material shelf 12 on which a new material W can be placed, and the material shelf 12 has a plurality of shelf members 12 a arranged on the side portion of the main body frame 11. Each of the shelf members 12a is arranged at a predetermined interval in the longitudinal direction of the bar feeder 1, projects laterally from the body frame 11, and supports a new material W'to be replenished. The bar feeding mechanism of the bar feeder 1 includes a feed arrow 13 for feeding the bar W to the lathe 2 and an endless chain 14 for transmitting a driving force or thrust to the feed arrow 13 (only a part is shown). That is). The upper running zone of the endless chain 14 extends parallel to the machining axis X--X, and the rear end portion 13a of the feed arrow 13, which is generally called a blade, is locked to the upper running zone of the endless chain 14. The feed arrow 13 is a guide rail (not shown) fixed on the body frame 11.
Is guided so as to be able to reciprocate in the front-rear direction along the machining axis XX. A finger chuck 13b for holding the rear end of the bar W is rotatably attached to the front end of the feed arrow 13.

【0012】無端チェーン14は、本体フレーム11の
前端部及び後端部に回転可能に支持された第1及び第2
スプロケット15、16に巻き掛けられている。前方に
位置する第1スプロケット15は、回転可能な遊動スプ
ロケットを構成する。他方、後方に位置する第2スプロ
ケット16は、チェーン作動用の駆動スプロケットを構
成しており、電磁クラッチ17を介して、電動式駆動モ
ータ18の出力軸に作動的に連結される。電磁クラッチ
17の締結により駆動モータ18のトルクが第2スプロ
ケット16に伝達され、無端チェーン14が走行駆動さ
れる。旋盤2は主軸移動型のNC旋盤であり、加工軸線
X─Xに沿って往復動可能な主軸21を有する。主軸2
1は、棒材Wを把持するためのコレットチャック22を
備えており、コレットチャック22で把持した棒材Wを
前後方向に移動させつつ、棒材Wを高速回転させるよう
に構成されている。主軸21の前方には、棒材Wを回転
可能に支持するガイドブッシュ23と、棒材Wに切削加
工を施すバイト24とが配置されている。バイト24
は、図示しないツールホルダに支持され、ツールホルダ
の運動に応じて、加工軸線X─Xに対して接近又は離間
する。
The endless chain 14 is rotatably supported at the front end and the rear end of the main body frame 11 by the first and second ends.
It is wound around the sprockets 15 and 16. The first sprocket 15 located at the front constitutes a rotatable floating sprocket. On the other hand, the second sprocket 16 located on the rear side constitutes a drive sprocket for operating the chain, and is operatively connected to the output shaft of the electric drive motor 18 via the electromagnetic clutch 17. By engaging the electromagnetic clutch 17, the torque of the drive motor 18 is transmitted to the second sprocket 16, and the endless chain 14 is driven to travel. The lathe 2 is a main spindle moving type NC lathe, and has a main spindle 21 which can reciprocate along a machining axis X--X. Spindle 2
1 is equipped with a collet chuck 22 for gripping the bar W, and is configured to rotate the bar W at a high speed while moving the bar W gripped by the collet chuck 22 in the front-rear direction. A guide bush 23 that rotatably supports the rod W and a cutting tool 24 that cuts the rod W are arranged in front of the main shaft 21. Byte 24
Is supported by a tool holder (not shown), and moves toward or away from the machining axis X--X according to the movement of the tool holder.

【0013】このように構成された棒材供給機1及び旋
盤2において、送り矢13及び主軸21は、動力伝達装
置3を介して機械的に相互連結されており、主軸21の
前後運動は、動力伝達装置3を介して送り矢13に伝達
され、送り矢13は、主軸21と連動する。動力伝達装
置3は、図1に示す如く、棒材供給機1の第1スプロケ
ット15の回転中心軸19に一体的に連結された被動ス
プロケット20と、旋盤2に配置された駆動スプロケッ
ト30とを備える。連動用無端チェーン31が被動スプ
ロケット20及び駆動スプロケット30の外周に巻き掛
けられ、スプロケット20、30の外周部に係合してい
る。駆動スプロケット30の回転中心軸線上に電磁クラ
ッチ34及び第1連動スプロケット40が整列配置さ
れ、駆動スプロケット30の回転中心軸32は、電磁ク
ラッチ34を介して第1連動スプロケット40の回転中
心軸36と作動的に連結される。
In the bar feeder 1 and the lathe 2 configured as described above, the feed arrow 13 and the main shaft 21 are mechanically interconnected via the power transmission device 3, and the back-and-forth movement of the main shaft 21 is It is transmitted to the feed arrow 13 via the power transmission device 3, and the feed arrow 13 is interlocked with the main shaft 21. As shown in FIG. 1, the power transmission device 3 includes a driven sprocket 20 integrally connected to a rotation center shaft 19 of a first sprocket 15 of a bar feeder 1 and a drive sprocket 30 arranged on a lathe 2. Prepare The interlocking endless chain 31 is wound around the outer circumferences of the driven sprocket 20 and the drive sprocket 30 and is engaged with the outer peripheral portions of the sprockets 20 and 30. The electromagnetic clutch 34 and the first interlocking sprocket 40 are aligned on the rotational center axis of the drive sprocket 30, and the rotational center shaft 32 of the drive sprocket 30 is aligned with the rotational center shaft 36 of the first interlocking sprocket 40 via the electromagnetic clutch 34. Operatively linked.

【0014】第1連動スプロケット40と対をなす第2
連動スプロケット41が、主軸21の側方に配置され、
第1及び第2連動スプロケット40、41は、旋盤2の
ベッド部分26に回転可能に取付けられる。第1及び第
2連動スプロケット40、41の外周には、無端チェー
ン43が巻き掛けられ、無端チェーン43は、連動スプ
ロケット40、41の外周部に係合する。主軸21に固
定された接続金具45が、主軸21から側方に突出し、
接続金具45の先端部分が、無端チェーン43の上位走
行帯に係止される。接続金具45は、主軸21と一体的
に移動し、無端チェーン43を走行させ、無端チェーン
43は、第1及び第2連動スプロケット40、41を回
転させる。図1に示す如く、主軸21及びバイト24等
の旋盤2の付属品、棒材供給機1の電磁クラッチ17、
動力伝達装置3の電磁クラッチ34等の作動を制御する
コントローラCが設けられ、コントローラCは、旋盤2
の動作制御を実行するとともに、電磁クラッチ17、3
4の締結/解放を制御する。
Second paired with first interlocking sprocket 40
The interlocking sprocket 41 is arranged on the side of the main shaft 21,
The first and second interlocking sprockets 40, 41 are rotatably attached to the bed portion 26 of the lathe 2. An endless chain 43 is wound around the outer peripheries of the first and second interlocking sprockets 40 and 41, and the endless chain 43 engages with the outer peripheral parts of the interlocking sprockets 40 and 41. The connection fitting 45 fixed to the main shaft 21 projects laterally from the main shaft 21,
The tip portion of the connection fitting 45 is locked to the upper traveling zone of the endless chain 43. The connection fitting 45 moves integrally with the main shaft 21 to run the endless chain 43, and the endless chain 43 rotates the first and second interlocking sprockets 40 and 41. As shown in FIG. 1, accessories of the lathe 2 such as the main shaft 21 and the cutting tool 24, the electromagnetic clutch 17 of the bar material feeder 1,
A controller C that controls the operation of the electromagnetic clutch 34 and the like of the power transmission device 3 is provided, and the controller C is the lathe 2
The operation control of the electromagnetic clutches 17, 3
Controls 4 engagement / disengagement.

【0015】棒材供給機1及び旋盤2は更に、棒材Wを
選択的に把持又は解放することができる把持装置50を
備える。把持装置50は、図1に示す如く、コレットチ
ャック22とガイドブッシュ23との間に配置され、接
近・離間可能な一対の把持部材51を備えている。把持
装置50は、コレットチャック22が開放し且つ主軸2
1が後退する際に、把持部材51を閉塞して棒材Wを把
持し、棒材Wの軸線方向の移動を禁止する。図4は、把
持装置50の概略構造を示す縦断面図である。図4
(A)に示す如く、把持装置50は、加工軸線X─Xに
対して対称の形態を有する一対の把持部材51と、旋盤
2の支持部材59に固定された一対のガイド52と、各
連結軸53を中心に各把持部材51に回動可能に連結さ
れた揺動アーム55とを備えている。把持装置50は更
に、空圧作動型シリンダ装置等の流体シリンダ装置56
を備えており、揺動アーム55は、支軸54を介して流
体シリンダ装置56のピストンロッド57に枢着されて
いる。流体シリンダ装置56のシリンダ部分は、支持部
材59に固定され、支持部材59は、旋盤2のフレーム
又はベッド部分26に支持されている。流体シリンダ装
置56は、流体制御回路(図示せず)に連結され、流体
制御回路の切換弁の切換制御により、ピストンロッド5
7を伸縮する。流体制御回路の切換弁は、上記コントロ
ーラCによって制御される。
The bar feeder 1 and the lathe 2 further include a gripping device 50 capable of selectively gripping or releasing the bar W. As shown in FIG. 1, the gripping device 50 is provided between the collet chuck 22 and the guide bush 23 and includes a pair of gripping members 51 that can approach and separate from each other. In the gripping device 50, the collet chuck 22 is opened and the spindle 2
When 1 moves backward, the gripping member 51 is closed to grip the bar W, and the bar W is prohibited from moving in the axial direction. FIG. 4 is a vertical cross-sectional view showing the schematic structure of the gripping device 50. FIG.
As shown in (A), the gripping device 50 includes a pair of gripping members 51 having a symmetrical shape with respect to the machining axis line XX, a pair of guides 52 fixed to a supporting member 59 of the lathe 2, and each connection. The swing arm 55 is rotatably connected to each grip member 51 about the shaft 53. The gripping device 50 further includes a fluid cylinder device 56, such as a pneumatically actuated cylinder device.
The swing arm 55 is pivotally attached to the piston rod 57 of the fluid cylinder device 56 via the support shaft 54. The cylinder portion of the fluid cylinder device 56 is fixed to a support member 59, and the support member 59 is supported by the frame or bed portion 26 of the lathe 2. The fluid cylinder device 56 is connected to a fluid control circuit (not shown), and the piston rod 5 is controlled by switching control of a switching valve of the fluid control circuit.
Stretch 7 The switching valve of the fluid control circuit is controlled by the controller C.

【0016】図4(A)において、流体シリンダ装置5
6は、ピストンロッド57を伸長し、把持装置50を開
放しており、把持部材51は、互いに離間した開位置に
位置している。流体シリンダ装置56がピストンロッド
57を引き込んだとき、揺動アーム55は支軸54を中
心に互いに接近するように回動し、把持部材51を互い
に接近させる。かくして閉位置に移動した把持部材51
は、図4(B)に示す如く、棒材Wを挟持し、棒材Wを
拘束する。次に、上記棒材供給機1及び自動旋盤2の作
動について説明する。図1を参照すると、棒材供給機1
の送り矢13は、フィンガーチャック13bにて棒材W
の後端部を把持しており、棒材Wは、旋盤2の主軸21
及びガイドブッシュ23を貫通している。主軸21のコ
レットチャック22は閉位置に位置し、コントローラC
の制御下に、棒材Wを把持して高速回転させるととも
に、主軸21をベッド部分26上で前後動させて、棒材
Wを加工軸線X─X方向に前後動させる。旋盤2のバイ
ト24は、高速回転する棒材Wの外周部に当接し、ガイ
ドブッシュ23の前方で棒材Wに切削加工を施す。この
ような製品切削工程において、コントローラCは、棒材
供給機1の電磁クラッチ17を解放させ且つ動力伝達装
置3の電磁クラッチ34を締結させるとともに、把持装
置50の各把持部材51を相互離間した開位置に保持す
る。
In FIG. 4A, the fluid cylinder device 5
6 extends the piston rod 57 to open the gripping device 50, and the gripping member 51 is located at an open position separated from each other. When the fluid cylinder device 56 retracts the piston rod 57, the swing arms 55 rotate about the support shaft 54 so as to approach each other, and bring the gripping members 51 closer to each other. The gripping member 51 thus moved to the closed position
Holds the rod W and restrains the rod W as shown in FIG. 4 (B). Next, the operation of the bar feeder 1 and the automatic lathe 2 will be described. Referring to FIG. 1, a bar feeder 1
The feed arrow 13 of the stick W
Holding the rear end of the lathe, and the rod W is the main shaft 21 of the lathe 2.
And the guide bush 23. The collet chuck 22 of the spindle 21 is located at the closed position, and the controller C
Under the control of 1, the bar W is gripped and rotated at a high speed, and the main shaft 21 is moved back and forth on the bed portion 26 to move the bar W back and forth in the machining axis X--X direction. The cutting tool 24 of the lathe 2 contacts the outer peripheral portion of the bar material W that rotates at a high speed, and cuts the bar material W in front of the guide bush 23. In such a product cutting process, the controller C releases the electromagnetic clutch 17 of the bar feeder 1 and engages the electromagnetic clutch 34 of the power transmission device 3, and separates the gripping members 51 of the gripping device 50 from each other. Hold in open position.

【0017】この結果、旋盤2における主軸21の前後
動は、接続金具45を介して無端チェーン43の上位走
行帯に伝達され、無端チェーン43の上位走行帯の線形
運動は、第1連動スプロケット40、電磁クラッチ34
及び駆動スプロケット30の回転運動を介して、連動用
無端チェーン31に伝達される。連動用無端チェーン3
1の線形運動は更に、棒材供給機1の被動スプロケット
20及び第1スプロケット15の回転運動を介して、送
り矢作動用無端チェーン14に伝達される。かくして、
主軸21の前後動は、無端チェーン14の走行運動に変
換され、無端チェーン14に係止した送り矢13は、主
軸21と同期して前後動する。なお、各スプロケット1
5、20、30、40、41の直径は、実質的に同一直
径に設定されており、主軸21の前後動は、変速せずに
無端チェーン14に伝達され、従って、主軸21及び送
り矢13は、正確に連動する。
As a result, the back-and-forth movement of the main shaft 21 of the lathe 2 is transmitted to the upper running zone of the endless chain 43 through the connecting fitting 45, and the linear motion of the upper running zone of the endless chain 43 is the first interlocking sprocket 40. , Electromagnetic clutch 34
And the rotational motion of the drive sprocket 30 is transmitted to the interlocking endless chain 31. Interlocking endless chain 3
1 linear motion is further transmitted to the feed arrow actuating endless chain 14 via the rotational motions of the driven sprocket 20 and the first sprocket 15 of the bar feeder 1. Thus,
The forward / backward movement of the main shaft 21 is converted into the running motion of the endless chain 14, and the feed arrow 13 locked to the endless chain 14 moves forward / backward in synchronization with the main shaft 21. In addition, each sprocket 1
The diameters of 5, 20, 30, 40, and 41 are set to be substantially the same, and the back-and-forth movement of the main shaft 21 is transmitted to the endless chain 14 without shifting, and thus the main shaft 21 and the feed arrow 13 are transmitted. Works exactly together.

【0018】所定の切削工程が完了すると、バイト24
は、図2に示す如く、棒材Wの先端部から製品Sを突っ
切り、1個の製品Sの加工工程を完了する。コントロー
ラCは、流体シリンダ装置56(図4)がピストンロッ
ド57を引き込むように、把持装置50の流体制御回路
を制御し、把持部材51は、図4(B)に示す閉位置に
切り換えられ、棒材Wを把持する。コントローラCは更
に、動力伝達装置3の電磁クラッチ34を解放し、主軸
21と送り矢13との間の動力伝達経路を遮断する。把
持部材51が閉位置に切り換えられると、コントローラ
Cは、主軸21のコレットチャック22を開放し、図3
に示す如く、主軸21を所定距離だけ後退させる。該所
定距離は、一般に、加工すべき製品Sの製品長に設定さ
れる。主軸21が所定位置まで後退すると、コントロー
ラCは、コレットチャック22を閉位置に切り換え、コ
レットチャック22は棒材Wを把持する。しかる後、コ
ントローラCは、流体シリンダ装置56がピストンロッ
ド57を伸長するように、把持装置50の流体制御回路
を制御し、把持部材51は、図4(A)に示す開位置に
変位して、棒材Wを解放する。コントローラCは更に、
動力伝達装置3の電磁クラッチ34を締結させ、主軸2
1と送り矢13との間の動力伝達経路を接続し、これに
より、主軸21と送り矢13との同期連動関係を再形成
する。
When the predetermined cutting process is completed, the cutting tool 24
As shown in FIG. 2, the product S is cut off from the tip of the bar W to complete the processing step for one product S. The controller C controls the fluid control circuit of the gripping device 50 so that the fluid cylinder device 56 (FIG. 4) retracts the piston rod 57, and the gripping member 51 is switched to the closed position shown in FIG. 4 (B). The bar W is gripped. The controller C further releases the electromagnetic clutch 34 of the power transmission device 3 to cut off the power transmission path between the main shaft 21 and the feed arrow 13. When the gripping member 51 is switched to the closed position, the controller C opens the collet chuck 22 of the spindle 21,
As shown in, the main shaft 21 is retracted by a predetermined distance. The predetermined distance is generally set to the product length of the product S to be processed. When the main shaft 21 retracts to a predetermined position, the controller C switches the collet chuck 22 to the closed position, and the collet chuck 22 holds the bar W. Thereafter, the controller C controls the fluid control circuit of the gripping device 50 so that the fluid cylinder device 56 extends the piston rod 57, and the gripping member 51 is displaced to the open position shown in FIG. 4 (A). , Release the bar W. Controller C is also
The electromagnetic clutch 34 of the power transmission device 3 is engaged and the main shaft 2
The power transmission path between 1 and the feed arrow 13 is connected, whereby the synchronous interlocking relationship between the spindle 21 and the feed arrow 13 is recreated.

【0019】引き続き、コントローラCは、旋盤2に製
品切削工程を指令し、主軸21は、棒材Wを高速回転さ
せつつ、前後方向に移動し、バイト24は、棒材Wの外
周面に当接して、棒材Wの先端部を切削し、棒材Wの先
端部から製品Sを加工する。前述の如く、送り矢13
は、かかる製品加工工程において、主軸21の前後動に
連動して前後動する。このように、棒材供給機1は、棒
材Wの後端部を送り矢13のフィンガーチャック13b
で把持して、棒材Wを旋盤2の主軸21に供給し、旋盤
2は、コントローラCの制御下に製品加工工程を実行
し、多数の製品Sを棒材Wの先端部から突っ切る。製品
切削工程において、棒材供給機1の電磁クラッチ17
は、解放し、駆動モータ18と送り矢13との間のトル
ク伝達経路は、遮断される。従って、送り矢13の駆動
力又は推進力は実質的に完全に消失する。他方、主軸2
1と送り矢13とは、動力伝達装置3を介して同期連動
関係に相互連結され、送り矢13は、主軸21の前後動
と同期して前後動する。また、旋盤2は、主軸21及び
バイト24の作動により1個の製品Sが棒材Wの先端部
から突切られる毎に、主軸21を後退させ、棒材Wを製
品長に相応する移動設定量だけ棒材W及び送り矢13を
前進させる。
Subsequently, the controller C commands the lathe 2 to perform a product cutting process, the spindle 21 moves in the front-rear direction while rotating the bar W at a high speed, and the cutting tool 24 contacts the outer peripheral surface of the bar W. In contact with each other, the tip of the bar W is cut, and the product S is processed from the tip of the bar W. As mentioned above, the feed arrow 13
Moves back and forth in conjunction with the back and forth movement of the spindle 21 in the product processing step. In this way, the bar feeder 1 feeds the rear end of the bar W to the finger chuck 13 b of the feed arrow 13.
Then, the bar W is supplied to the main shaft 21 of the lathe 2, and the lathe 2 executes the product processing step under the control of the controller C to cut a large number of products S from the tip end of the bar W. In the product cutting process, the electromagnetic clutch 17 of the bar feeder 1
Is released, and the torque transmission path between the drive motor 18 and the feed arrow 13 is cut off. Therefore, the driving force or the propulsive force of the feed arrow 13 disappears substantially completely. On the other hand, spindle 2
1 and the feed arrow 13 are interconnected in a synchronous interlocking relationship via the power transmission device 3, and the feed arrow 13 moves back and forth in synchronization with the back and forth movement of the main shaft 21. Further, the lathe 2 retracts the main shaft 21 every time one product S is cut off from the tip end of the bar W by the operation of the main shaft 21 and the cutting tool 24, and the bar W is moved by a set amount corresponding to the product length. Only the bar W and the feed arrow 13 are advanced.

【0020】このような製品加工を反復して実行する全
体工程において、各製品加工(毎個加工)を完了した主
軸21がコレットチャック22を開放する直前に、把持
装置50は、把持部材51を閉じて、棒材Wを前後動不
能に拘束し、動力伝達装置3は、電磁クラッチ34を解
放して主軸21と送り矢13との動力伝達経路を遮断
し、これにより、送り矢13を静止させる。更に、主軸
21が後退すると、主軸21がコレットチャック22を
閉塞した直後且つ主軸21が前進又は回転動作を開始す
る直前に、把持装置50は、把持部材51を開放して、
棒材Wを前後動可能に解放し、また、動力伝達装置3
は、電磁クラッチ34を締結して主軸21と送り矢13
とを連動させる。従って、棒材Wは、回転切削中に主軸
21のコレットチャック22に把持され、製品加工完了
後の主軸21後退時に把持装置50によって拘束され
る。送り矢13は、動力伝達装置3によって回転切削中
の主軸21と同期連動し、製品加工完了後の主軸21後
退時に、主軸21と連動せず、静止する。
In the entire process of repeatedly performing such product processing, the gripping device 50 causes the gripping device 50 to move the gripping member 51 immediately before the main shaft 21 that has finished processing each product (processing each piece) releases the collet chuck 22. By closing and restraining the bar W so that it cannot move back and forth, the power transmission device 3 releases the electromagnetic clutch 34 to cut off the power transmission path between the main shaft 21 and the feed arrow 13, thereby stopping the feed arrow 13 stationary. Let Further, when the main spindle 21 retracts, the gripping device 50 opens the gripping member 51 immediately after the main spindle 21 closes the collet chuck 22 and immediately before the main spindle 21 starts the forward movement or the rotation operation.
The rod W is released to be movable back and forth, and the power transmission device 3
Engages the electromagnetic clutch 34 to engage the main shaft 21 and the feed arrow 13
Interlock with. Therefore, the rod W is gripped by the collet chuck 22 of the spindle 21 during the rotary cutting, and is restrained by the gripping device 50 when the spindle 21 retracts after the product processing is completed. The feed arrow 13 is synchronously interlocked with the main spindle 21 during rotary cutting by the power transmission device 3, and does not interlock with the main spindle 21 when the main spindle 21 retreats after the completion of product processing, and is stationary.

【0021】また、送り矢13に駆動力を伝達する棒材
供給機1の電磁クラッチ17は、新材W′を旋盤2の主
軸21に挿通させるショートカット給送時に締結される
が、引き続く複数の製品の製品加工工程全般に亘って解
放され続け、この結果、前進方向の駆動力又は推力(ス
ラスト力)は、製品加工工程全般に亘って送り矢13に
作用しない。かくして、上記構成によれば、主軸21の
後退圧力及び送り矢13の前進駆動力が棒材Wに作用し
ないので、かかる後退圧力及び前進駆動力により棒材W
に作用し得る圧縮力は解消し、該圧縮力によって生じ得
る棒材Wの撓み変形は実質的に完全に防止される。な
お、上記実施例では、コントローラCは、棒材供給機1
及び旋盤2の双方の作動を制御しているが、上記制御を
棒材供給機1の専用コントローラ及び旋盤2の専用コン
トローラによって夫々実行しても良い。また、上記実施
例では、第2スプロケット16を電動式駆動モータ18
の出力軸に連結しているが、変形例として、第1及び第
2スプロケット15、16の間に第3スプロケット(駆
動スプロケット)を更に配置し、無端チェーン14の中
間部分を該第3スプロケットに係合させ、第3スプロケ
ットと駆動モータの出力軸とを電磁クラッチ等を介して
作動的に連結しても良い。更には、第3スプロケットと
関連する所謂ショートカット装置を棒材供給機1に配設
しても良い。
The electromagnetic clutch 17 of the bar material feeder 1 for transmitting the driving force to the feed arrow 13 is fastened at the time of short-cut feeding for inserting the new material W'into the main shaft 21 of the lathe 2, but a plurality of successive ones. The product continues to be released throughout the product processing process, and as a result, the forward driving force or thrust (thrust force) does not act on the feed arrow 13 throughout the product processing process. Thus, according to the above configuration, since the backward pressure of the main shaft 21 and the forward drive force of the feed arrow 13 do not act on the bar W, the backward pressure and the forward drive force cause the bar W to move.
The compressive force that may act on the rod W is eliminated, and the bending deformation of the bar W that may be caused by the compressive force is substantially completely prevented. In the above embodiment, the controller C is the bar feeder 1
Although the operations of both the lathe 2 and the lathe 2 are controlled, the above-mentioned control may be executed by the dedicated controller of the bar feeder 1 and the dedicated controller of the lathe 2, respectively. In the above embodiment, the second sprocket 16 is connected to the electric drive motor 18
In the modified example, a third sprocket (drive sprocket) is further arranged between the first and second sprockets 15 and 16, and the intermediate portion of the endless chain 14 is connected to the third sprocket. The third sprocket and the output shaft of the drive motor may be engaged and operatively connected via an electromagnetic clutch or the like. Further, a so-called shortcut device associated with the third sprocket may be arranged in the bar feeder 1.

【0022】また、上記実施例においては、把持装置5
0を主軸21とガイドブッシュ23との間に設けている
が、専用の把持装置50を設けずに、自動旋盤に設けら
れた従来のグリップ又は棒材前進用グリップにより棒材
Wを把持するように構成しても良い。また、上記動力伝
達装置3全体をスプロケット/チェーン形式の動力伝達
手段として構成したが、動力伝達装置3として、特公平
6─88165号公報に開示されたラック/ピニオン形
式の動力伝達手段を採用しても良い。
Further, in the above embodiment, the gripping device 5
Although 0 is provided between the main shaft 21 and the guide bush 23, the bar W is gripped by the conventional grip provided on the automatic lathe or the bar advancing grip without providing the dedicated gripping device 50. It may be configured to. Although the power transmission device 3 as a whole is configured as a sprocket / chain type power transmission device, the rack / pinion type power transmission device disclosed in Japanese Patent Publication No. 6-88165 is adopted as the power transmission device 3. May be.

【0023】[0023]

【発明の効果】以上説明した通り、本発明の上記構成に
よれば、製品を切削加工すべく自動旋盤の主軸が前後動
する製品切削工程のみならず、主軸のチャックが開放し
て主軸が後退する主軸後退工程においても、送り矢に作
用する前進駆動力又は推進力を低減することができる棒
材加工装置及び棒材加工方法を提供することができる。
As described above, according to the above configuration of the present invention, not only the product cutting step in which the spindle of the automatic lathe moves back and forth to cut the product, but also the chuck of the spindle opens and the spindle retracts. It is possible to provide a bar material processing apparatus and a bar material processing method that can reduce the forward drive force or the propulsive force that acts on the feed arrow even in the main shaft retracting step.

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

【図1】本発明の実施例に係る棒材供給方法を実施する
ための自動旋盤及び棒材供給機を示す概略平面図であ
る。
FIG. 1 is a schematic plan view showing an automatic lathe and a bar material feeder for carrying out a bar material feeding method according to an embodiment of the present invention.

【図2】製品切削完了直後の状態を示す自動旋盤及び棒
材供給機の概略平面図である。
FIG. 2 is a schematic plan view of an automatic lathe and a bar material feeder showing a state immediately after completion of product cutting.

【図3】主軸後退時の状態を示す自動旋盤及び棒材供給
機の概略平面図である。
FIG. 3 is a schematic plan view of an automatic lathe and a bar material feeder showing a state when the spindle is retracted.

【図4】把持装置の概略構造を示す縦断面図である。FIG. 4 is a vertical sectional view showing a schematic structure of a gripping device.

【符号の説明】[Explanation of symbols]

1 棒材供給機 2 旋盤 3 動力伝達装置 11 本体フレーム 12 材料棚 13 送り矢 13b フィンガーチャック 14 無端チェーン 15、16 スプロケット 17 電磁クラッチ 18 駆動モータ 20、30、40、41 スプロケット 21 主軸 22 コレットチャック 23 ガイドブッシュ 24 バイト 31、43 無端チェーン 34 電磁クラッチ 45 接続金具 50 把持装置 51 把持部材 W 棒材 W′ 新材 C コントローラ 1 Bar Material Feeder 2 Lathe 3 Power Transmission Device 11 Main Frame 12 Material Shelf 13 Feed Arrow 13b Finger Chuck 14 Endless Chain 15, 16 Sprocket 17 Electromagnetic Clutch 18 Drive Motor 20, 30, 40, 41 Sprocket 21 Spindle 22 Collet Chuck 23 Guide bush 24 bytes 31, 43 Endless chain 34 Electromagnetic clutch 45 Connection fitting 50 Gripping device 51 Gripping member W Rod W'New material C controller

Claims (7)

【特許請求の範囲】[Claims] 【請求項1】 棒材の軸線方向に移動可能な主軸および
該棒材に旋削加工を施す加工工具を備えた主軸移動型旋
盤と、該旋盤の製品加工工程に関連して前記棒材を所定
の移動設定量ずつ前記旋盤に供給する棒材供給機とを有
し、該棒材供給機は、棒材補給手段によって補給された
棒材を前記旋盤に供給する棒材供給手段を備え、該棒材
供給手段は、前記棒材を前記旋盤に向かって給送する棒
材送り部材と、該棒材送り部材を駆動する駆動装置とを
備えた棒材加工装置において、 前記駆動装置と前記棒材送り部材との間の駆動力伝達経
路を解放する駆動力解放手段と、 前記主軸と前記棒材送り部材とを相互連結する動力伝達
経路を有し、前記棒材送り部材の運動を前記主軸の運動
と機械的に連動させる動力伝達装置と、 該動力伝達装置に介装され、前記棒材送り矢部材と前記
主軸との連動を解除する連動解除装置と、 閉位置にて前記棒材を把持して該棒材の軸線方向の移動
を禁止し、開位置にて前記棒材を解放する把持装置と、 前記旋盤の切削工程において前記動力伝達装置を作動さ
せ且つ前記把持装置を開位置に保持し、前記主軸が前記
棒材を解放するときに前記把持装置を閉位置に切り換
え、前記主軸の後退時に前記連動解除装置を作動させる
連動/把持制御装置とを備えたことを特徴とする棒材加
工装置。
1. A spindle moving type lathe equipped with a spindle that is movable in the axial direction of a bar and a machining tool for turning the bar, and the bar is specified in relation to a product processing step of the lathe. And a bar material feeder for supplying the lathe to the lathe by a set movement amount, the bar material feeder includes bar material supplying means for supplying the bar material replenished by the bar material replenishing means to the lathe, The bar material feeding means is a bar material processing device including a bar material feeding member for feeding the bar material toward the lathe, and a drive device for driving the bar material feeding member, wherein the drive device and the bar A driving force releasing means for releasing a driving force transmitting path between the rod feeding member and a power transmitting route for interconnecting the main shaft and the rod feeding member; And a power transmission device mechanically interlocked with the movement of the And an interlock releasing device for releasing the interlocking between the bar feed arrow member and the main shaft, and gripping the bar at the closed position to prohibit movement of the bar in the axial direction, and at the open position. A gripping device for releasing the rod, a holding device for operating the power transmission device and holding the gripping device in an open position in the cutting step of the lathe, and for closing the gripping device when the spindle releases the rod. And a interlocking / holding control device that operates the interlock release device when the spindle is retracted.
【請求項2】 前記把持装置は、前記棒材を把持する一
対の把持部材と、該把持部材を閉位置及び開位置に選択
的に変位させる把持部材作動装置とを備えることを特徴
とする請求項1に記載の棒材加工装置。
2. The gripping device comprises a pair of gripping members for gripping the rod member, and a gripping member actuating device for selectively displacing the gripping member between a closed position and an open position. Item 1. The bar processing device according to Item 1.
【請求項3】 前記把持装置は、前記旋盤のグリップか
らなることを特徴とする請求項1又は2に記載の棒材加
工装置。
3. The bar processing apparatus according to claim 1, wherein the gripping device is a grip of the lathe.
【請求項4】 前記駆動力解放手段及び前記連動解除装
置は夫々、選択的に締結又は解放可能な電磁クラッチか
らなることを特徴とする請求項1乃至4のいずれか1項
に記載の棒材加工装置。
4. The bar member according to claim 1, wherein each of the driving force releasing means and the interlock releasing device is an electromagnetic clutch that can be selectively engaged or released. Processing equipment.
【請求項5】 棒材の軸線方向に移動可能な主軸および
該棒材に旋削加工を施す加工工具を備えた主軸移動型旋
盤と、棒材を前記旋盤の製品加工工程に関連して該旋盤
の主軸に給送することができる棒材供給機とを使用し、 前記棒材供給機の駆動装置によって該棒材供給機の棒材
送り部材に駆動力を付与し、前記棒材の先端部分を前記
主軸に挿通させ、 前記主軸の前後動により、前記製品加工工程に関連し
て、前記棒材を所定の移動設定量ずつ前進させ、複数の
製品を棒材の先端部分から製造する棒材加工方法におい
て、 前記棒材送り部材に付与される駆動力を解除し、 前記棒材送り部材と前記主軸とを動力伝達経路を介して
機械的に相互連結して、前記棒材送り部材を前記主軸の
前後動と連動させ、 前記主軸が前記棒材を解放するときに、前記棒材を棒材
把持手段で把持して、該棒材の前後動を禁止するととも
に、前記動力伝達経路を遮断して、前記棒材送り部材と
前記主軸との連動を解除し、 前記主軸を前記移動設定量だけ後退させて、該主軸のチ
ャックを閉じ、 前記動力伝達経路を接続して、前記棒材送り部材を前記
主軸の前後動と連動させるとともに、前記棒材把持手段
を開放して、前記棒材を前後動可能に解放することを特
徴とする棒材加工方法。
5. A spindle moving type lathe equipped with a spindle movable in the axial direction of a bar and a machining tool for turning the bar, and the lathe in relation to a product processing step of the lathe. And a rod material feeder capable of feeding to a main shaft of the rod material, a driving force is applied to a rod material feeding member of the rod material feeder by a driving device of the rod material feeder, and a tip portion of the rod material is used. Through the main shaft, by the forward and backward movement of the main shaft, in relation to the product processing step, the rod is advanced by a predetermined movement set amount, a plurality of products manufactured from the tip portion of the bar In the processing method, the driving force applied to the rod feeding member is released, the rod feeding member and the main shaft are mechanically interconnected via a power transmission path, and the rod feeding member is When the main shaft releases the bar, the main shaft moves back and forth. The rod is gripped by the rod gripping means to prohibit the rod from moving back and forth, and the power transmission path is cut off to release the interlocking between the rod feed member and the spindle. Back by the movement set amount, close the chuck of the main shaft, connect the power transmission path, interlock the rod member feeding member with the back-and-forth movement of the main shaft, and open the rod member gripping means. And then releasing the bar so that the bar can be moved back and forth.
【請求項6】 棒材の新材のショートカット給送時に前
記棒材送り部材に駆動力を付与し、該ショートカット給
送完了後に該駆動力を解除した後、前記新材から製造可
能な製品の全数を製造し終えるまで、前記駆動力の解除
状態を維持することを特徴とする請求項5に記載の棒材
加工方法。
6. A product that can be manufactured from the new material after applying a driving force to the bar feeding member at the time of short-cut feeding of a new bar material and releasing the driving force after completion of the short-cut feeding. The bar material processing method according to claim 5, wherein the released state of the driving force is maintained until all the products are manufactured.
【請求項7】 前記ショートカット給送完了後に前記棒
材送り部材に作用する前進方向及び後退方向の駆動力が
実質的に零になるように、前記駆動装置と前記棒材送り
部材との間の駆動力伝達経路を完全に遮断することを特
徴とする請求項6に記載の棒材加工方法。
7. The device between the drive unit and the bar feed member so that the driving force in the forward and backward directions acting on the bar feed member after completion of the shortcut feeding is substantially zero. The bar material processing method according to claim 6, wherein the driving force transmission path is completely cut off.
JP18546795A 1995-07-21 1995-07-21 Device for processing bar material and method of processing the same Pending JPH0929505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18546795A JPH0929505A (en) 1995-07-21 1995-07-21 Device for processing bar material and method of processing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18546795A JPH0929505A (en) 1995-07-21 1995-07-21 Device for processing bar material and method of processing the same

Publications (1)

Publication Number Publication Date
JPH0929505A true JPH0929505A (en) 1997-02-04

Family

ID=16171295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18546795A Pending JPH0929505A (en) 1995-07-21 1995-07-21 Device for processing bar material and method of processing the same

Country Status (1)

Country Link
JP (1) JPH0929505A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013052458A (en) * 2011-09-01 2013-03-21 Alps Tool Co Ltd Method and device for detecting material displacement from reference position, and method and device for detecting amount of material movement from reference position
JP2013193157A (en) * 2012-03-19 2013-09-30 Seiko Instruments Inc Bar material machining system and bar material machining method
JP2015134408A (en) * 2015-05-01 2015-07-27 株式会社アルプスツール Material displacement detection method and material displacement detector
JP2017154197A (en) * 2016-02-29 2017-09-07 シチズン時計株式会社 Processing device
JP2018051649A (en) * 2016-09-27 2018-04-05 育良精機株式会社 Bar supply machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013052458A (en) * 2011-09-01 2013-03-21 Alps Tool Co Ltd Method and device for detecting material displacement from reference position, and method and device for detecting amount of material movement from reference position
JP2013193157A (en) * 2012-03-19 2013-09-30 Seiko Instruments Inc Bar material machining system and bar material machining method
JP2015134408A (en) * 2015-05-01 2015-07-27 株式会社アルプスツール Material displacement detection method and material displacement detector
JP2017154197A (en) * 2016-02-29 2017-09-07 シチズン時計株式会社 Processing device
JP2018051649A (en) * 2016-09-27 2018-04-05 育良精機株式会社 Bar supply machine

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