JP4930714B2 - Work delivery device for horizontal machining center - Google Patents

Work delivery device for horizontal machining center Download PDF

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JP4930714B2
JP4930714B2 JP2007168413A JP2007168413A JP4930714B2 JP 4930714 B2 JP4930714 B2 JP 4930714B2 JP 2007168413 A JP2007168413 A JP 2007168413A JP 2007168413 A JP2007168413 A JP 2007168413A JP 4930714 B2 JP4930714 B2 JP 4930714B2
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workpiece
casing
spindle
dispensing
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JP2009006419A (en
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秋利 佐藤
佳久 猪飼
真一 人見
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Howa Machinery Ltd
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この発明は、横型マシニングセンタで加工した後の加工位置のワークを払出し位置に払出す横型マシニングセンタのワーク払出し装置に関するものである。   The present invention relates to a workpiece dispensing apparatus for a horizontal machining center that dispenses a workpiece at a machining position after machining by a horizontal machining center to a dispensing position.

特許文献1には、ケーシングに軸支した回転軸を工作機械の主軸のテーパ孔に着脱可能に構成したワーク把持工具を工具マガジンに収納しておき、そのワーク把持工具のケーシングに回転軸に設けたピニオンに噛み合う一対の平行なラック部材を摺動可能に設け、ラック部材の互いに反対側となる突出端に把持部材を夫々設け、ワーク把持工具を主軸に装着させた状態で、主軸の回転により把持部材を開閉動作させ、加工位置のワークを把持部材で把持した後、工作機械の主軸(移動コラム)を左右移動させてワークを加工位置側方の所定位置に搬送するようにしたワーク払出し装置が開示されている。   In Patent Document 1, a work gripping tool configured such that a rotary shaft pivotally supported on a casing is detachable from a taper hole of a spindle of a machine tool is stored in a tool magazine, and the casing of the work gripping tool is provided on the rotary shaft. A pair of parallel rack members meshing with the pinion are slidably provided, gripping members are respectively provided at the protruding ends on the opposite sides of the rack members, and the work gripping tool is mounted on the spindle, and the spindle is rotated. Opening and closing operation of the gripping member, gripping the workpiece at the machining position with the gripping member, and then moving the spindle (moving column) of the machine tool left and right to convey the workpiece to a predetermined position on the side of the machining position. Is disclosed.

特許文献2には、特許文献1と同様に、ケーシングに軸支した回転軸を工作機械の主軸のテーパ孔に着脱可能に構成したワーク把持工具を工具マガジンに収納しておき、そのワーク把持工具の回転軸の先端部分にねじ部を設け、ケーシングに回転軸のねじ部に螺合する開閉用部材を回転軸の軸線方向に摺動可能に設け、ケーシングに揺動可能に設けた把持部材の嵌合突起部を開閉用部材の開閉用溝に嵌合させ、ワーク把持工具を主軸に装着させた状態で、主軸の回転により把持部材を開閉動作させ、加工位置のワークを把持部材によって把持した後、工作機械の主軸(移動コラム)を左右移動させてワークを加工位置側方の所定位置に搬送するようにしたワーク払出し装置が開示されている。   In Patent Document 2, as in Patent Document 1, a work gripping tool configured such that a rotating shaft pivotally supported on a casing is detachable from a taper hole of a spindle of a machine tool is stored in a tool magazine, and the work gripping tool is stored in the tool magazine. A screw part is provided at the tip of the rotary shaft, and an opening / closing member that is screwed to the screw part of the rotary shaft is provided in the casing so as to be slidable in the axial direction of the rotary shaft. With the fitting protrusion fitted in the opening / closing groove of the opening / closing member and the work gripping tool mounted on the spindle, the gripping member was opened and closed by rotating the spindle, and the workpiece at the processing position was gripped by the gripping member. Thereafter, there is disclosed a workpiece dispensing apparatus in which a spindle (moving column) of a machine tool is moved left and right to convey a workpiece to a predetermined position on the side of the machining position.

特許文献3には、主軸がX、Y、Z軸方向へ移動可能なマシニングセンタの工具マガジンに保持具を収納させておき、保持具に切削油等の圧力流体で把持部を開閉させるシリンダを備え、保持具を主軸に装着させた状態で、圧力流体をシリンダに給排して保持部を開閉動作させ、加工位置のワークを保持部によって把持した後、工作機械の主軸を移動させてワークを加工位置側方の搬出路に搬送するようにしたワーク払出し装置が開示されている。
特開2003−181736号公報 特開2003−231034号公報 特開2004−42152号公報
In Patent Document 3, a holder is housed in a tool magazine of a machining center whose main shaft is movable in the X, Y, and Z axis directions, and a cylinder that opens and closes the grip portion with a pressure fluid such as cutting oil is provided in the holder. With the holder attached to the spindle, supply and discharge the pressure fluid to the cylinder to open and close the holder, grip the workpiece at the machining position with the holder, and then move the spindle of the machine tool to move the workpiece. There has been disclosed a workpiece dispensing apparatus which is adapted to be conveyed to an unloading path on the side of the machining position.
JP 2003-181736 A JP 2003-231034 A JP 2004-42152 A

特許文献1〜3に記載のワーク払出し装置では、マシニングセンタ等の工作機械の主軸の移動領域が主軸の工具でワークを加工する領域に設定されているので、主軸に装着したワーク把持工具や保持具でワークを把持して払出す払出し位置が加工位置の側方に制限され、ワークを加工位置の前方の払出し位置に直接払出すことができない問題がある。その為、ワーク加工位置の前方へ払出したいときは、特許文献3に記載されているように、ワークの加工位置の側方にワークを前方へ搬送する搬出路を設け、ワーク把持工具や保持具によって把持したワークを加工位置側方の搬出路に払出した後でワークを搬出路によって加工位置の前方へ取出すようにしている。ところが、このように搬出路を別個に設ける装置では、装置の構成が複雑になる上に、ワークの取出しが不安定になり、ワークを次工程に移送する際のトラブルを招く問題がある。また、特許文献1〜3のワーク払出し装置では、ワークを把持部材で把持して搬送するようになっているので、ワーク把持工具や保持具の構成が複雑でコスト高になる上に、ワーク把持工具や保持具の把持部材の構成が把持すべきワークの形状や寸法に特定され、ワークの種類に応じて種々のワーク把持工具や保持具を準備する必要があってトータルコストが高くなる問題もある。   In the workpiece dispensing apparatuses described in Patent Documents 1 to 3, since the movement area of the spindle of a machine tool such as a machining center is set to an area where the workpiece is processed with the tool of the spindle, a workpiece gripping tool or a holder mounted on the spindle Thus, there is a problem that the payout position at which the work is gripped and discharged is limited to the side of the machining position, and the work cannot be directly delivered to the payout position in front of the machining position. For this reason, when it is desired to pay the workpiece forward to the workpiece machining position, as described in Patent Document 3, a workpiece carrying tool or holder is provided on the side of the workpiece machining position with a carry-out path for conveying the workpiece forward. After the workpiece gripped by the above is discharged to the unloading path on the side of the machining position, the workpiece is taken out to the front of the machining position by the unloading path. However, in the apparatus in which the unloading path is separately provided as described above, the structure of the apparatus becomes complicated, and the work removal becomes unstable, causing problems when the work is transferred to the next process. In addition, since the workpiece dispensing apparatus disclosed in Patent Documents 1 to 3 grips and transports a workpiece with a gripping member, the configuration of workpiece gripping tools and holders is complicated and expensive. The configuration of the gripping member of the tool or holder is specified by the shape and dimensions of the workpiece to be gripped, and it is necessary to prepare various workpiece gripping tools and holders according to the type of workpiece, which increases the total cost. is there.

本願発明の課題は、種々形状のワークの払出しに兼用することができて、しかも簡易な構成で安価に製造できる横型マシニングセンタのワーク払出し装置を提供することにある。   An object of the present invention is to provide a workpiece dispensing device for a horizontal machining center that can be used for dispensing workpieces of various shapes and can be manufactured at a low cost with a simple configuration.

上記課題を解決するため、本願発明は、主軸を回転可能に支承して左右、上下、前後に移動される主軸支承体と、主軸に装着する交換用の工具を収納可能な工具マガジンと、主軸と工具マガジンとの間で工具交換可能な工具交換装置を備え、主軸に装着した工具を左右、上下、前後に移動させてワークを加工するようにした横型マシニングセンタにおいて、加工済のワークを払出し位置に押出す払出し工具を備え、払出し工具を工具マガジンに主軸との間で交換可能に収納するワーク払出し装置であって、
軸線方向に長いケーシングと、ケーシングの元部側に回転可能に支承させた回転体と、回転体の軸心部に固着してケーシングの先端側へ突出させた送り軸と、ケーシングに回り止め状態で軸線方向へ移動可能に設けた軸線方向に長い押出部材と、押出部材の元部側に軸線方向へ相対移動しないように設けて送り軸に螺合させたナット部材を備え、回転体に主軸に着脱可能な嵌着部、ケーシングに主軸支承体に係合可能な係合部を夫々設けて払出し工具を構成し、
ケーシングを軸線方向に長い筒形に形成し、ケーシング内に先端部が閉塞された筒形の押出部材を回り止め状態で軸線方向へ移動可能に設け、押出部材の元部側にナット部材を固着して押出部材内の閉鎖空間に送り軸とナット部材を収納し、押出部材の先端部に交換可能なワーク当接部材を備え、
主軸の回転により送り軸が回転体と一体回転し、回り止め状態のケーシングと押出部材により、ナット部材と押出部材が送り軸に沿って前方へ移動し、ワーク当接部材が加工位置のワークを押して払出し位置へ払出すことを特徴とする(請求項1)。
In order to solve the above-described problems, the present invention provides a spindle support body that is rotatably supported by rotating the spindle, and a tool magazine that can store a replacement tool attached to the spindle, and a spindle and comprising a tool interchangeable tool changer with the tool magazine, affects the tool attached to the spindle, vertical, payout position in moved horizontal machining center which is adapted to machine the workpiece, a machined workpiece back and forth A workpiece dispensing device for storing the dispensing tool in a tool magazine so as to be exchangeable with the spindle,
A casing that is long in the axial direction, a rotating body that is rotatably supported on the base side of the casing, a feed shaft that is fixed to the axial center of the rotating body and protrudes toward the front end side of the casing, and a non-rotating state in the casing And a nut member which is provided so as not to move relatively in the axial direction on the base side of the extrusion member and is screwed to the feed shaft. A detachable fitting part and an engaging part that can be engaged with the spindle support body in the casing, respectively , to constitute a dispensing tool,
The casing is formed into a cylindrical shape that is long in the axial direction, and a cylindrical push-out member whose tip is closed in the casing is provided so as to be movable in the axial direction in a non-rotating state, and a nut member is fixed to the base side of the push-out member Then, the feed shaft and the nut member are housed in the closed space in the extrusion member, and a replaceable work contact member is provided at the tip of the extrusion member,
The feed shaft is rotated integrally with the rotating body by the rotation of the main shaft, the nut member and the push member are moved forward along the feed shaft by the non-rotating casing and the push member, and the workpiece contact member moves the work in the processing position. It pushes and pays out to a payout position (Claim 1).

また、本願発明は、前記嵌着部を主軸の装着孔に装着した際に、前記主軸支承体の係合孔に前記係合部を嵌合して前記ケーシングを回り止め状態とする一方、ケーシング内に摺動キーを備え、前記押出部材の外周の摺動部に摺動凹部を形成し、摺動凹部と摺動キーの嵌合により押出部材を回り止め状態としたことを特徴とする(請求項2)。
また、本願発明は、回転体を横型マシニングセンタが備えている主軸のリジットタップサイクル機能によって回転させるように構成し、1サイクルでワークの払出しを完了するようにしたことを特徴とする(請求項3)。
In the invention of the present application, when the fitting portion is attached to the attachment hole of the main shaft, the engagement portion is fitted into the engagement hole of the main shaft support so that the casing is prevented from rotating. A sliding key is provided inside, a sliding recess is formed in a sliding portion on the outer periphery of the pushing member, and the pushing member is in a non-rotating state by fitting the sliding recess with the sliding key ( Claim 2).
The invention of the present application is characterized in that the rotating body is configured to rotate by a rigid tap cycle function of a spindle provided in the horizontal machining center, and the workpiece discharge is completed in one cycle. ).

本願発明は、軸線方向に長いケーシングと、ケーシングの元部側に回転可能に支承させた回転体と、回転体の軸心部に固着してケーシングの先端側へ突出させた送り軸と、ケーシングに回り止め状態で軸線方向へ移動可能に設けた軸線方向に長い押出部材と、押出部材の元部側に軸線方向へ相対移動しないように設けて送り軸に螺合させたナット部材を備え、回転体に主軸に着脱可能な嵌着部を、ケーシングに主軸支承体に係合可能な係合部を夫々設けて払出し工具を構成し、
ケーシングを軸線方向に長い筒形に形成し、ケーシング内に先端部が閉塞された筒形の押出部材を回り止め状態で軸線方向へ移動可能に設け、押出部材の元部側にナット部材を固着して押出部材内の閉鎖空間に送り軸とナット部材を収納し、押出部材の先端部に交換可能なワーク当接部材を備え、
主軸の回転により送り軸が回転体と一体回転し、回り止め状態のケーシングと押出部材により、ナット部材と押出部材が送り軸に沿って前方へ移動し、ワーク当接部材が加工位置のワークを押して払出し位置へ払出すので、工具マガジンに収納された払出し工具を主軸に装着し、払出し工具の押出部材を主軸の回転により前進させると共に主軸を前進させることで、押出部材により加工位置のワークを加工位置前方の払出し位置に大きく押し移動させて払出すことができる。また、工具マガジンに収納された払出し工具を主軸に装着し、その払出し工具の押出部材を主軸の回転により前進させると共に主軸を前進させてワークを払出すようにしたので、ワーク払出し装置の為の専用設置スペースを不要にでき、既設のマシニングセンタにも簡易迅速に実施できる。また、払出し工具の押出部材を前進させて押出部材でワークを押し移動させて払出すので、ワークの形状等が種々異なるときでも、それらのワークを同一の払出し工具によって容易に払出すことができ、製造コストを低くできる。
The present invention includes a casing that is long in the axial direction, a rotating body that is rotatably supported on the base side of the casing, a feed shaft that is fixed to the axial center of the rotating body and protrudes toward the front end side of the casing, and a casing An axially long pushing member provided so as to be movable in the axial direction in a non-rotating state, and a nut member provided so as not to move relative to the axial direction on the base side of the pushing member and screwed to the feed shaft, A rotary tool is provided with a fitting part that can be attached to and detached from the main shaft, and an engaging part that can be engaged with the main shaft support body is provided on the casing to constitute a dispensing tool,
The casing is formed into a cylindrical shape that is long in the axial direction, and a cylindrical push-out member whose tip is closed in the casing is provided so as to be movable in the axial direction in a non-rotating state, and a nut member is fixed to the base side of the push-out member Then, the feed shaft and the nut member are housed in the closed space in the extrusion member, and a replaceable work contact member is provided at the tip of the extrusion member,
The feed shaft is rotated integrally with the rotating body by the rotation of the main shaft, the nut member and the push member are moved forward along the feed shaft by the non-rotating casing and the push member, and the workpiece contact member moves the work in the processing position. Since it pushes and pays out to the payout position, the payout tool stored in the tool magazine is attached to the main shaft, and the pushing member of the payout tool is advanced by rotating the main shaft and the main shaft is advanced, so that the workpiece at the processing position is moved by the push member. It is possible to pay by largely pushing and moving to a payout position in front of the machining position. In addition, since the payout tool stored in the tool magazine is mounted on the spindle, the pushing member of the payout tool is advanced by the rotation of the spindle and the spindle is advanced so that the workpiece is paid out. A dedicated installation space can be dispensed with, and it can be carried out easily and quickly in an existing machining center. Also, since the pushing member of the dispensing tool is advanced and the workpiece is pushed and moved by the pushing member, the workpiece can be easily dispensed with the same dispensing tool even when the shape of the workpiece varies. , Manufacturing costs can be reduced.

また、本願発明は、ケーシングを軸線方向に長い筒形に形成し、ケーシング内に先端部が閉塞された筒形の押出部材を回り止め状態で軸線方向へ移動可能に設け、押出部材の元部側にナット部材を固着し、押出部材の先端部にワーク当接部材を備えているので、押出部材内の閉鎖空間に送り軸とナット部材を収納でき、送り軸とナット部材に切粉や塵埃等が付着するのを防止して長期に亘って作動を確実にできる。
また、本願発明は、回転体を横型マシニングセンタの主軸のリジットタップサイクル機能によって回転させるように構成し、1サイクルでワークの払出しを完了するようにしたので、新たな駆動源を追加することなく、少ない費用でワークを加工位置前方へ簡易迅速に払出しできる。
Further, the present invention provides a casing having a cylindrical shape elongated in the axial direction, and a cylindrical pushing member whose tip is closed in the casing is provided so as to be movable in the axial direction in a non-rotating state. Since the nut member is fixed to the side and the work contact member is provided at the tip of the extruding member, the feed shaft and the nut member can be stored in the closed space inside the extruding member. Etc. can be prevented and adhesion can be ensured over a long period of time.
In addition, the present invention is configured to rotate the rotating body by the rigid tap cycle function of the spindle of the horizontal machining center, and completes the discharge of the workpiece in one cycle. Therefore, without adding a new drive source, The workpiece can be easily and quickly delivered to the front of the machining position at low cost.

次に、図に示す本願発明の実施形態について説明する。図1、図2は、クイル式の横型マシニングセンタ1の側面図を示すもので、図1は加工位置Pに位置されているワークWを加工している状態を示し、図2は加工後のワークWを加工位置Pから加工位置P前方の払出し位置Qに払出している状態を示している。クイル式の横型マシニングセンタ1は、ベッド2上に左右方向(X軸)に移動可能に設けられている移動コラム3と、この移動コラム3に上下方向(Y軸)に移動可能に設けられているサドル5と、サドルに水平姿勢で前後方向(Z軸)に移動可能に設けられている主軸支承体として例示するクイル7とを備えている。クイル7には主軸9が回転可能に支承され、主軸9の先端部には工具10を交換可能に装着する為の装着孔11(図ではテーパ孔を示している)が設けられている。移動コラム3は図示しない左右移動用モータによって正逆回転される送り軸13によって左右移動され、サドル5は昇降用モータ15によって正逆回転される送り軸16によって上下移動され、クイル7は前後移動用モータ18によって正逆回転される図示しない送り軸によって前後移動されるようになっている。主軸9はクイル7の後端部に設けられている主軸用モータ20によって正逆回転されるようになっている。   Next, an embodiment of the present invention shown in the drawings will be described. 1 and 2 are side views of a quill type horizontal machining center 1. FIG. 1 shows a state in which a workpiece W located at a machining position P is being machined, and FIG. 2 shows a workpiece after machining. A state in which W is paid out from the machining position P to the dispensing position Q in front of the machining position P is shown. The quill-type horizontal machining center 1 is provided on a bed 2 so as to be movable in the left-right direction (X-axis), and is provided on the movable column 3 so as to be movable in the vertical direction (Y-axis). A saddle 5 and a quill 7 exemplified as a spindle support body provided on the saddle so as to be movable in the front-rear direction (Z-axis) in a horizontal posture are provided. A main shaft 9 is rotatably supported on the quill 7, and a mounting hole 11 (a taper hole is shown in the drawing) for mounting the tool 10 in a replaceable manner is provided at the tip of the main shaft 9. The moving column 3 is moved left and right by a feed shaft 13 that is rotated forward and backward by a left and right moving motor (not shown), the saddle 5 is moved up and down by a feed shaft 16 that is rotated forward and reverse by a lifting motor 15, and the quill 7 is moved back and forth. It is moved back and forth by a feed shaft (not shown) that is rotated forward and backward by the motor 18. The main shaft 9 is rotated forward and backward by a main shaft motor 20 provided at the rear end of the quill 7.

移動コラム3の上方にはベッド2から立設されている複数の支柱21等によって左右方向の支持枠23が固定的に配置され、その支持枠23に工具マガジン25が設置されている。工具マガジン25は、割出用モータ26によって回転される回転軸27に円盤状の工具保持板28が設けられ、その工具保持板28の外周部に多数の保持部29が設けられている。工具保持板28の保持部29に種々の工具10が交換可能に保持されている。工具保持板28の保持部29に保持されている工具10と主軸9の装着孔11に装着されている工具10とを交換する工具交換装置30は、サドル5が上昇することで主軸9の装着孔11に装着されている工具10を工具保持板28の最下端位置の保持部29に直接装着し、その後クイル7が後退して工具10を主軸9の装着孔11から抜き取り、また、主軸9の装着孔11を工具保持板28の最下端位置の保持部29に保持されている工具10の後方に位置させた後、クイル7を前進させて主軸9の装着孔11に工具10を装着し、その後サドル5が下降することで工具10を工具保持板28の最下端位置の保持部29から離脱させて工具交換するようになっている。なお、工具マガジン25は、チェーンを利用したものや、案内溝を利用した他の工具マガジンであっても良い。工具交換装置30は、両端部に工具保持部を備えた交換アームを用いて工具交換するものであっても良い。   Above the moving column 3, a support frame 23 in the left-right direction is fixedly arranged by a plurality of columns 21 erected from the bed 2, and a tool magazine 25 is installed on the support frame 23. In the tool magazine 25, a disk-shaped tool holding plate 28 is provided on a rotating shaft 27 rotated by an indexing motor 26, and a number of holding portions 29 are provided on the outer periphery of the tool holding plate 28. Various tools 10 are hold | maintained at the holding | maintenance part 29 of the tool holding plate 28 so that replacement | exchange is possible. The tool changer 30 for exchanging the tool 10 held by the holding portion 29 of the tool holding plate 28 and the tool 10 attached to the attachment hole 11 of the spindle 9 is attached to the spindle 9 by raising the saddle 5. The tool 10 mounted in the hole 11 is directly mounted on the holding portion 29 at the lowermost position of the tool holding plate 28, and then the quill 7 is retracted and the tool 10 is extracted from the mounting hole 11 of the main shaft 9. The mounting hole 11 is positioned behind the tool 10 held by the holding portion 29 at the lowermost position of the tool holding plate 28, and then the quill 7 is advanced to mount the tool 10 in the mounting hole 11 of the spindle 9. Then, when the saddle 5 is lowered, the tool 10 is removed from the holding portion 29 at the lowermost position of the tool holding plate 28 to change the tool. The tool magazine 25 may be one using a chain or another tool magazine using a guide groove. The tool changer 30 may be a tool changer using an exchange arm having a tool holding part at both ends.

また、ベッド2上には、加工領域にワーク固定用の冶具32が設置されている。冶具32は、冶具本体33に加工位置Pで昇降可能な案内部材34を備え、案内部材34の上昇状態で案内部材34上にワークWが前方から人手やロボット等で供給されたりワークWが次に示すワーク払出し装置40によって前方へ払出しされ、案内部材34の下降状態で案内部材34上のワークWを冶具本体33に図示しないクランプ装置によりクランプしたりアンクランプするようになっている。横型マシニングセンタ1の加工領域前方の払出し位置Qには、ワークWを載置可能な載置テーブル36が設けられている。この載置テーブル36の上面は、上昇状態の案内部材34の上面と同じ高さに設定され、かつ、上昇状態の案内部材34に対して開閉ドア38の移動軌跡を挟んで僅かな隙間をあけて連続するように設けられている。なお、払出し位置Qには、載置テーブル36の代わりにワークWを載置可能な搬送コンベアや昇降テーブルを配置して置いても良い。   On the bed 2, a jig 32 for fixing a workpiece is installed in the processing area. The jig 32 includes a guide member 34 that can be moved up and down at the processing position P in the jig main body 33. When the guide member 34 is raised, a workpiece W is supplied onto the guide member 34 from the front by a hand or a robot, or the workpiece W is next. The workpiece W on the guide member 34 is clamped or unclamped to the jig body 33 by a clamp device (not shown) while the guide member 34 is lowered. A placement table 36 on which the workpiece W can be placed is provided at the dispensing position Q in front of the machining area of the horizontal machining center 1. The upper surface of the mounting table 36 is set at the same height as the upper surface of the guide member 34 in the raised state, and a slight gap is provided with respect to the guide member 34 in the raised state across the movement locus of the open / close door 38. Are provided continuously. In addition, instead of the placement table 36, a transfer conveyor or a lifting table on which the workpiece W can be placed may be placed at the payout position Q.

次に、クイル式横型マシニングセンタ1において、加工済の加工位置PのワークWを払出し位置Qに払出すためのワーク払出し装置40について説明する。ワーク払出し装置40は、図3、図4に示す払出し工具42を備えている。この払出し工具42は、軸線方向に長い筒形のケーシング43と、ケーシング43内の元部側に軸受44を介して回転可能に支承されている回転体46と、回転体46のケーシング先端側の軸心部に固着されてケーシング43の先端側へ突出されている送り軸47と、ケーシング43内に摺動キー48によって回り止めされた回り止め状態で軸線方向へ移動可能に設けられている軸線方向に長い筒形の押出部材50と、押出部材50の元部側にねじ51によって固着されて軸線方向へ相対移動しないように設けられているナット部材52を備えている。ナット部材52は送り軸47に螺合されている。押出部材50は、ケーシング43の先端側に形成されている開口孔43aに摺動可能に嵌合され、また、先端部が閉塞されて押出部材50内部に切粉や塵埃が侵入しないようにしてある。押出部材50の先端部には、種々のワークWに対応するワーク当接部材55が交換可能に取着されているが、ワーク当接部材55は押出部材50に一体に具備させても良い。押出部材50の外周には、元部側端部にケーシング43内面を摺動可能な鍔状の摺動部50aが形成され、その摺動部50aに摺動キー48に嵌合している摺動凹部50bが形成されている。 Next, the workpiece dispensing apparatus 40 for dispensing the workpiece W at the processed machining position P to the dispensing position Q in the quill-type horizontal machining center 1 will be described. The workpiece dispensing apparatus 40 includes a dispensing tool 42 shown in FIGS. The payout tool 42 includes a cylindrical casing 43 that is long in the axial direction, a rotating body 46 that is rotatably supported on the base side of the casing 43 via a bearing 44, and a casing 46 on the tip side of the casing of the rotating body 46. A feed shaft 47 that is fixed to the shaft center and protrudes toward the distal end side of the casing 43, and an axis line that is provided in the casing 43 so as to be movable in the axial direction in a non-rotating state that is locked by a sliding key 48. A cylindrical extruding member 50 that is long in the direction and a nut member 52 that is fixed to the base of the extruding member 50 with a screw 51 so as not to move relative to the axial direction. The nut member 52 is screwed to the feed shaft 47. The extruding member 50 is slidably fitted in an opening hole 43a formed on the front end side of the casing 43, and the front end is closed so that chips and dust do not enter the inside of the extruding member 50. is there. A workpiece contact member 55 corresponding to various workpieces W is attached to the distal end portion of the extrusion member 50 so as to be replaceable. However, the workpiece contact member 55 may be provided integrally with the extrusion member 50. On the outer periphery of the pushing member 50, a hook-shaped sliding portion 50a that can slide the inner surface of the casing 43 is formed at the end of the base portion, and a sliding key 48 fitted to the sliding key 48 is formed on the sliding portion 50a. A moving recess 50b is formed.

回転体46は、後部がケーシング43から後方へ突出し、その突出部分に、一般の工具10と同様に、工具マガジン25の保持部29に把持させる把持部46aと、主軸9の装着孔11に装着される嵌着部として例示するテーパ部46bと、主軸9内の図示しないプルロッドにより引き込まれるプルスタッド46cが夫々形成されている。ケーシング43には、元部側外周に支持腕56が突設され、その支持腕56に係合部として例示する回り止めピン57が後方へ突出するように固着されている。回り止めピン57は、クイル7の先端面に設けられている図示しない係合孔に嵌合してケーシング43が軸線回りに回転するのを回り止めするようになっている。
前記払出し工具42は、ワーク加工中においては、交換用の工具10と同様に、工具マガジン25の工具保持板28の保持部29に保持され、工具マガジン25に収納されている。
なお、図では主軸9の装着孔11に装着される嵌着部としてプルスタッド46cを備えたテーパ部46bを示しているが、主軸9の装着孔11としてはプルスタッドを備えない二面拘束の嵌合部で構成しても良い。その場合、主軸9の装着孔11は、二面拘束の工具や二面拘束の払出し工具を装着できるように二面拘束対応に構成される。
The rotating body 46 protrudes rearward from the casing 43, and the protruding portion is mounted in the mounting hole 11 of the spindle 9 and the gripping portion 46 a to be gripped by the holding portion 29 of the tool magazine 25, similar to the general tool 10. A tapered portion 46b exemplified as the fitting portion to be fitted and a pull stud 46c to be drawn by a pull rod (not shown) in the main shaft 9 are formed. A support arm 56 projects from the outer periphery of the base portion side of the casing 43, and a detent pin 57 exemplified as an engaging portion is fixed to the support arm 56 so as to protrude rearward. The rotation prevention pin 57 is fitted in an engagement hole (not shown) provided on the tip surface of the quill 7 so as to prevent the casing 43 from rotating about the axis.
During the workpiece machining, the payout tool 42 is held by the holding portion 29 of the tool holding plate 28 of the tool magazine 25 and is stored in the tool magazine 25 in the same manner as the replacement tool 10.
In addition, although the figure shows the taper part 46b provided with the pull stud 46c as the fitting part to be installed in the mounting hole 11 of the main shaft 9, the mounting hole 11 of the main shaft 9 is a two-sided restraint that does not include a pull stud. You may comprise by a fitting part. In that case, the mounting hole 11 of the main shaft 9 is configured to support two-surface restraint so that a two-surface restraint tool and a two-surface restraint payout tool can be attached.

以上のようなクイル式横型マシニングセンタ1においては、移動コラム3を左右移動させ、サドル5を上下動させ、クイル7を前後移動させることで、主軸9を制御プログラムに応じて左右、上下、前後に三次元移動させることができ、主軸9に装着された工具10によって加工位置PのワークWを加工することができる。主軸9に装着されている工具10は制御プログラムに応じて工具マガジン25に収納されている他の工具10と自動交換され、ワークWに一連の加工を行う。ワークWを加工する際は、開閉ドア38が閉鎖されている。
ワークWの加工が完了し、加工済のワークWを加工位置Pから払出し位置Qに払出すときには、主軸9に装着されている工具10が工具マガジン25に収納されている払出し工具42と自動交換される。この自動交換は、主軸9を左右、上下、前後に三次元移動させて主軸9の工具10を工具マガジン25の最下端部の保持部29に把持させた後、主軸9を後退させて主軸9から工具10を離脱させ、その後、工具マガジン25の工具保持板28を回転させて払出し工具42を最下端部の交換位置に割出し移動させ、その後、主軸9を前進させて主軸9の装着孔を払出し工具42のテーパ部46bに装着すると共にクイル7の係合孔に払出し工具42の回り止めピン57を嵌合させた後、主軸9を下降させて払出し工具42を工具マガジン25の保持部29から離脱させることで行う。この工具10と払出し工具42との自動交換は工具10どうしの自動交換と同様に行うことができる。加工位置Pでは、加工済のワークWが冶具32からアンクランプされた後、案内部材34が上昇されて冶具32の上方に移動される。また、開閉ドア38は、ワークWの払出しとワークWの供給の為に開放される。
In the quill-type horizontal machining center 1 as described above, the moving column 3 is moved left and right, the saddle 5 is moved up and down, and the quill 7 is moved back and forth, so that the main shaft 9 is moved left and right, up and down, and forward and backward according to the control program. The workpiece W at the machining position P can be machined by the tool 10 mounted on the spindle 9. The tool 10 mounted on the spindle 9 is automatically replaced with another tool 10 stored in the tool magazine 25 in accordance with the control program, and a series of machining is performed on the workpiece W. When processing the workpiece W, the open / close door 38 is closed.
When machining of the workpiece W is completed and the machined workpiece W is dispensed from the machining position P to the dispensing position Q, the tool 10 mounted on the spindle 9 is automatically replaced with the dispensing tool 42 stored in the tool magazine 25. Is done. In this automatic exchange, the main shaft 9 is moved three-dimensionally left and right, up and down, and front and rear, the tool 10 of the main shaft 9 is gripped by the holding portion 29 at the lowermost end of the tool magazine 25, and then the main shaft 9 is retracted. Then, the tool 10 is detached from the tool magazine 25, the tool holding plate 28 of the tool magazine 25 is rotated, the dispensing tool 42 is indexed and moved to the exchange position at the lowermost end, and then the main shaft 9 is advanced to attach the mounting hole of the main shaft 9. Is attached to the taper portion 46b of the dispensing tool 42, and the rotation stop pin 57 of the dispensing tool 42 is fitted into the engagement hole of the quill 7, and then the spindle 9 is lowered to attach the dispensing tool 42 to the holding portion of the tool magazine 25. This is done by separating from 29. The automatic exchange between the tool 10 and the dispensing tool 42 can be performed in the same manner as the automatic exchange between the tools 10. At the processing position P, after the processed workpiece W is unclamped from the jig 32, the guide member 34 is lifted and moved above the jig 32. The open / close door 38 is opened for discharging the workpiece W and supplying the workpiece W.

次に、主軸9を左右、上下、前後に三次元移動させて主軸9に装着されている払出し工具42の押出部材50のワーク当接部材55を加工位置PのワークWの後面(加工領域の奥側)に近接させて対向させる。この場合、主軸9の工具10でワークWを加工する場合と同様にして、主軸9の払出し工具42をワークWの位置や形状に応じて最適な位置に容易に移動させることができる。その状態で、横型マシニングセンタ1が備えている主軸9のリジットタップサイクル機能によって主軸9を回転させる。この主軸9の正回転(例えば図3の右側から見て右回転)によって送り軸47が一体に回転するが、ケーシング43と押出部材50が回り止めされて回転しないので、ナット部材52が送り軸47に沿って前方(送り軸47の先端側)へ移動される。そのナット部材52の移動により押出部材50が前方へ移動され、押出部材50のワーク当接部材55が加工位置PのワークWに当接してワークWを払出し位置Qへ押し移動させ、ワークWを払出し位置Qへ払出す。この場合、押出部材50のワーク当接部材55が最前進端に移動されたとき、ワーク当接部材55が開閉ドア38の移動軌跡の僅か手前に位置されるように設定し、何らかの原因によって開閉ドア38が閉じてもワーク当接部材55と干渉しないようにしてあるが、ワーク当接部材55が開閉ドア38の移動軌跡を越えて加工領域外まで前進するようにしても良い。主軸9は、リジットタップサイクル機能によって正回転された後直ちに逆回転されるので、送り軸47が一体に逆回転し、その結果、前進端に移動された押出部材50が直ちに後方へ移動されて元の位置に戻される。前記のように主軸9のリジットタップサイクル機能の1サイクルでワークWの払出しを迅速に完了することができる。   Next, the spindle 9 is moved three-dimensionally left and right, up and down, and back and forth, and the workpiece abutting member 55 of the pushing member 50 of the dispensing tool 42 attached to the spindle 9 is moved to the rear surface of the workpiece W at the machining position P (on the machining area). Close to the back side). In this case, similarly to the case where the workpiece W is machined with the tool 10 of the spindle 9, the payout tool 42 of the spindle 9 can be easily moved to the optimum position according to the position and shape of the workpiece W. In this state, the main shaft 9 is rotated by the rigid tap cycle function of the main shaft 9 provided in the horizontal machining center 1. Although the feed shaft 47 rotates integrally by the forward rotation of the main shaft 9 (for example, the right rotation as viewed from the right side in FIG. 3), the casing 43 and the pushing member 50 are prevented from rotating and do not rotate. 47 is moved forward (the tip side of the feed shaft 47). The pushing member 50 is moved forward by the movement of the nut member 52, the work contact member 55 of the pushing member 50 is brought into contact with the work W at the processing position P, and the work W is pushed and moved to the payout position Q. Payout to payout position Q. In this case, when the work contact member 55 of the push-out member 50 is moved to the most advanced end, the work contact member 55 is set to be positioned slightly in front of the movement locus of the open / close door 38 and is opened and closed for some reason. Even if the door 38 is closed, it does not interfere with the workpiece contact member 55. However, the workpiece contact member 55 may advance beyond the processing region beyond the movement locus of the open / close door 38. Since the main shaft 9 is reversely rotated immediately after being forwardly rotated by the rigid tap cycle function, the feed shaft 47 is reversely rotated together. As a result, the pushing member 50 moved to the forward end is immediately moved backward. Return to original position. As described above, the payout of the workpiece W can be completed quickly in one cycle of the rigid tap cycle function of the main shaft 9.

その後、払出し工具42は、主軸9の三次元移動により、次のワークWを加工するための工具10と自動交換され、工具マガジン25に収納される。また、加工済のワークWが払出し位置Qに払出しされることで、その払出しによってその横型マシニングセンタ1でのワークWの加工完了を直接または間接的に確認し、次のワークWが人手またはロボットなどで加工位置Pに供給されて固定され、再びワークWの加工が行われる。   Thereafter, the payout tool 42 is automatically exchanged with the tool 10 for processing the next workpiece W by the three-dimensional movement of the spindle 9 and stored in the tool magazine 25. Further, when the processed workpiece W is delivered to the delivery position Q, the completion of processing of the workpiece W in the horizontal machining center 1 is confirmed directly or indirectly by the delivery, and the next workpiece W is manually or robotically. Then, the workpiece W is supplied and fixed at the machining position P, and the workpiece W is machined again.

なお、前記ワーク払出し動作では、加工位置PのワークWを払出す場合、払出し工具42を加工位置PのワークWの後面に近接させた後で、主軸9を回転させて押出部材50を前進させてワークWを払出すようにしたが、払出し工具42を加工位置PのワークWの後面に近接させる前に、先ず、クイル7を最後退させた状態で、主軸9を正回転させて押出部材50を最前進させ、その状態で払出し工具42のワーク当接部材55を加工位置PのワークWの後面に近接させて対向させ、その後クイル7を前進させてワークWを前方へ払出すようにしても良い。また、ワーク当接部材55の形状が異なる複数の払出し工具42を工具マガジン25に収納させておき、ワークWの払出しに最適な払出し工具42を選択して使用するようにしても良い。
また、図では、移動コラムに設けたサドルにクイルを前後移動可能に設けたクイル式の横型マシニングセンタに実施した場合を示しているが、前後、左右に移動可能な移動コラムに主軸ヘッドを上下移動可能に設けたコラム移動式の横型マシニングセンタにも同様に実施でき、その場合、クイルの前後移動の代わりに移動コラムが前後移動して主軸を前後移動させることになる。
In the workpiece dispensing operation, when the workpiece W at the machining position P is to be dispensed, after the dispensing tool 42 is brought close to the rear surface of the workpiece W at the machining position P, the spindle 9 is rotated to advance the extrusion member 50. The workpiece W is discharged, but before bringing the discharging tool 42 close to the rear surface of the workpiece W at the processing position P, first, the main shaft 9 is rotated forward in the state where the quill 7 is finally retracted, and the extrusion member In this state, the workpiece abutting member 55 of the dispensing tool 42 is brought close to and opposed to the rear surface of the workpiece W at the machining position P, and then the quill 7 is advanced to eject the workpiece W forward. May be. Alternatively, a plurality of payout tools 42 having different shapes of the workpiece contact members 55 may be stored in the tool magazine 25, and the optimal payout tool 42 for paying out the workpiece W may be selected and used.
In addition, the figure shows a case where the quill type horizontal machining center in which a quill is provided in a saddle provided on the movable column so as to be movable back and forth is shown, but the spindle head is moved up and down on a movable column movable in the front and rear and left and right directions. The present invention can be similarly applied to a column moving type horizontal machining center that can be provided, in which case the moving column moves back and forth to move the main shaft back and forth instead of moving the quill back and forth.

本発明の工具払出し装置を備えたマシニングセンタの側面図である。It is a side view of a machining center provided with the tool dispensing apparatus of the present invention. 工具払出し装置の作動状態を示すマシニングセンタの側面図である。It is a side view of the machining center which shows the operating state of a tool dispensing apparatus. 工具払出し装置の払出し工具を示す断面図である。It is sectional drawing which shows the delivery tool of a tool delivery apparatus. 図3の払出し工具のIV―IV線断面図である。FIG. 4 is a sectional view taken along line IV-IV of the dispensing tool of FIG. 3.

符号の説明Explanation of symbols

1 横型マシニングセンタ
2 ベッド
3 移動コラム
5 サドル
7 クイル(主軸支承体)
9 主軸
25 工具マガジン
40 ワーク払出し装置
42 払出し工具
43 ケーシング
46 回転体
46b テーパ部(嵌着部)
47 送り軸
48 摺動キー
50 押出部材
50b 摺動凹部
52 ナット部材
55 ワーク当接部材
1 Horizontal machining center 2 Bed 3 Moving column 5 Saddle 7 Quill (spindle support)
9 Spindle 25 Tool Magazine 40 Work Dispensing Device 42 Dispensing Tool 43 Casing 46 Rotating Body 46b Tapered Part (Fitting Part)
47 Feed axis
48 Slide key 50 Extruded member
50b Sliding recess 52 Nut member 55 Work contact member

Claims (3)

主軸を回転可能に支承して左右、上下、前後に移動される主軸支承体と、主軸に装着する交換用の工具を収納可能な工具マガジンと、主軸と工具マガジンとの間で工具交換可能な工具交換装置を備え、主軸に装着した工具を左右、上下、前後に移動させてワークを加工するようにした横型マシニングセンタにおいて、加工済のワークを払出し位置に押出す払出し工具を備え、払出し工具を工具マガジンに主軸との間で交換可能に収納するワーク払出し装置であって、
軸線方向に長いケーシングと、ケーシングの元部側に回転可能に支承させた回転体と、回転体の軸心部に固着してケーシングの先端側へ突出させた送り軸と、ケーシングに回り止め状態で軸線方向へ移動可能に設けた軸線方向に長い押出部材と、押出部材の元部側に軸線方向へ相対移動しないように設けて送り軸に螺合させたナット部材を備え、回転体に主軸に着脱可能な嵌着部、ケーシングに主軸支承体に係合可能な係合部を夫々設けて払出し工具を構成し、
ケーシングを軸線方向に長い筒形に形成し、ケーシング内に先端部が閉塞された筒形の押出部材を回り止め状態で軸線方向へ移動可能に設け、押出部材の元部側にナット部材を固着して押出部材内の閉鎖空間に送り軸とナット部材を収納し、押出部材の先端部に交換可能なワーク当接部材を備え、
主軸の回転により送り軸が回転体と一体回転し、回り止め状態のケーシングと押出部材により、ナット部材と押出部材が送り軸に沿って前方へ移動し、ワーク当接部材が加工位置のワークを押して払出し位置へ払出すことを特徴とする横型マシニングセンタのワーク払出し装置。
A spindle support that can be rotated left and right, up and down, and supported by a spindle so that the spindle can be rotated, a tool magazine that can store replacement tools to be mounted on the spindle, and tool exchange between the spindle and the tool magazine A horizontal machining center equipped with a tool changer that moves the tool mounted on the spindle to the left, right, up, down, and forward to process the workpiece, and includes a dispensing tool that pushes the processed workpiece to the dispensing position. A workpiece dispensing device that is stored in a tool magazine so as to be exchangeable with the spindle,
A casing that is long in the axial direction, a rotating body that is rotatably supported on the base side of the casing, a feed shaft that is fixed to the axial center of the rotating body and protrudes toward the front end side of the casing, and a non-rotating state in the casing And a nut member which is provided so as not to move relatively in the axial direction on the base side of the extrusion member and is screwed to the feed shaft. A detachable fitting part and an engaging part that can be engaged with the spindle support body in the casing, respectively , to constitute a dispensing tool,
The casing is formed into a cylindrical shape that is long in the axial direction, and a cylindrical push-out member whose tip is closed in the casing is provided so as to be movable in the axial direction in a non-rotating state, and a nut member is fixed to the base side of the push-out member Then, the feed shaft and the nut member are housed in the closed space in the extrusion member, and a replaceable work contact member is provided at the tip of the extrusion member,
The feed shaft is rotated integrally with the rotating body by the rotation of the main shaft, the nut member and the push member are moved forward along the feed shaft by the non-rotating casing and the push member, and the workpiece contact member moves the work in the processing position. A workpiece dispensing device for a horizontal machining center, wherein the workpiece is dispensed by pushing to a dispensing position .
前記嵌着部を主軸の装着孔に装着した際に、前記主軸支承体の係合孔に前記係合部を嵌合して前記ケーシングを回り止め状態とする一方、ケーシング内に摺動キーを備え、前記押出部材の外周の摺動部に摺動凹部を形成し、摺動凹部と摺動キーの嵌合により押出部材を回り止め状態としたことを特徴とする請求項1記載の横型マシニングセンタのワーク払出し装置。 When the fitting portion is mounted in the mounting hole of the main shaft, the engaging portion is fitted into the engaging hole of the main shaft support body so that the casing is prevented from rotating, and a sliding key is provided in the casing. 2. A horizontal machining center according to claim 1 , wherein a sliding recess is formed in a sliding portion on an outer periphery of the pushing member, and the pushing member is prevented from rotating by fitting the sliding recess and the sliding key. Work pay-out device. 回転体を横型マシニングセンタが備えている主軸のリジットタップサイクル機能によって回転させるように構成し、1サイクルでワークの払出しを完了するようにしたことを特徴とする請求項1または2記載の横型マシニングセンタのワーク払出し装置。 3. The horizontal machining center according to claim 1, wherein the rotary body is configured to be rotated by a rigid tap cycle function of a spindle included in the horizontal machining center, and the workpiece discharge is completed in one cycle. Work payout device.
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