WO2015068278A1 - チェーン式工具マガジン - Google Patents
チェーン式工具マガジン Download PDFInfo
- Publication number
- WO2015068278A1 WO2015068278A1 PCT/JP2013/080297 JP2013080297W WO2015068278A1 WO 2015068278 A1 WO2015068278 A1 WO 2015068278A1 JP 2013080297 W JP2013080297 W JP 2013080297W WO 2015068278 A1 WO2015068278 A1 WO 2015068278A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chain
- link member
- tool magazine
- type tool
- roller
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
- B23Q3/15713—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle
- B23Q3/1572—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means
- B23Q3/15724—Chains or belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
- B23Q3/15713—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
- B23Q3/15713—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle
- B23Q3/1572—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means
- B23Q3/15753—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane perpendicular to the axis of the spindle
- B23Q3/15766—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane perpendicular to the axis of the spindle the axis of the stored tools being arranged perpendicularly to the rotating or circulating plane of the storage means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
- B23Q2003/15532—Storage devices; Drive mechanisms therefor the storage device including tool pots, adaptors or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T483/00—Tool changing
- Y10T483/18—Tool transfer to or from matrix
- Y10T483/1873—Indexing matrix
- Y10T483/1891—Chain or belt
Definitions
- the present invention relates to a chain type tool magazine for storing a large number of tools used in a machining center or the like.
- Patent Documents 1 and 2 describe a chain-type tool magazine.
- Patent Document 1 describes a separable chain type tool magazine in which a tool can be removed from a chain together with a pot for holding the tool.
- This chain-type tool magazine increases the volume efficiency of the tool magazine by allowing the chain to circulate along a travel path having a concave curved portion and a convex curved portion.
- the chain-type tool magazine of Patent Document 2 includes an endless chain formed by providing two rhombus plates in a pot with an interval in the axial direction of the pot and connecting the two plates with pins. Yes.
- the chain of Patent Document 1 has a substantially concave plate shape so that the curvature radius of the concave curved portion is increased in order to prevent interference between the plates when passing through the concave curved portion of the travel path.
- the tool magazine of Patent Document 1 is not sufficient in volumetric efficiency improvement or space saving effect.
- Patent Document 2 has a relatively wide movable range at the connecting portion and can be meandered in a narrow space.
- the pot cannot be removed from the chain, the tool is moved in the axial direction. Therefore, there is a problem that the construction of the tool transfer device (shifter) becomes complicated and the manufacturing cost increases, and the tool preparation time becomes long.
- the present invention has a technical problem to solve such a problem of the prior art, and the preparation time of the tool for taking out the tool from the tool magazine and loading the tool into the tool magazine is short, and the tool magazine It is an object of the present invention to provide a chain type tool magazine having a high tool storage density that can store a larger number of tools.
- a pot-type tool magazine in which a plurality of pots for storing tools or a plurality of tools are detachably held and circulated, the pots or tools can be attached / detached.
- a link member having an opening to be held at the opening, wherein the link member has a first roller protruding to the opening side, a second roller on the opposite side of the opening, and a plurality of the link members endlessly.
- a chain tool magazine is provided.
- the chain is supported with respect to the guide by the first roller on the opening side of the link member and the second roller on the opposite side of the opening.
- it can be bent in either the left or right direction, that is, in the forward direction or the reverse direction, and the tool storage density is improved.
- the link member has an opening, the tool can be removed from the chain without moving the tool in the axial direction, and the preparation time of the tool is shortened.
- the chain since the chain is supported by the first and second rollers with respect to the guide, even if a heavy tool or long tool is held on the chain, the chain may be bent or the tool may be tilted forward and downward. This makes it possible to rotate the chain at high speed.
- FIG. 2 is a front view of the chain-type tool magazine of FIG. 1 with a cover of the chain-type tool magazine removed.
- FIG. 3 is a front view of the chain-type tool magazine of FIG. 2 with the chain assembly removed to clearly show the outer peripheral guide rail and the inner peripheral guide rail.
- It is a perspective view of the chain type tool magazine of FIG. It is a perspective view which shows a part of chain assembly shown with an inner periphery guide rail.
- FIG. 6 is a partial perspective view of the chain assembly shown with the inner peripheral guide rail removed from FIG. 5. It is a front view which shows a part of chain assembly.
- FIG. 8 is a partial side view of the chain assembly as seen in the direction of arrow VIII-VIII in FIG. 7. It is sectional drawing which follows the arrow IX-IX of FIG. It is a top view of the link plate of a 1st link member. It is a top view of the link plate of a 2nd link member. It is a fragmentary sectional top view of the shifter in an unclamped state. It is a front view of the shifter of FIG. It is a fragmentary sectional top view of the shifter in a clamped state. It is a front view of the shifter of FIG. It is a partial front view of the chain assembly by the modification of 1st Embodiment.
- FIG. 19 is a partial side view of the chain assembly as seen in the direction of arrow line IXX-IXX in FIG. 18. It is sectional drawing which follows the arrow XX-XX of FIG. It is a fragmentary sectional top view of the shifter in the unclamped state of the chain assembly of FIG. It is a front view of the shifter of FIG. FIG. 18 is a partial cross-sectional plan view of the shifter in a clamped state of the chain assembly of FIG. 17. It is a front view of the shifter of FIG.
- a tool magazine 100 is disposed on one side of a machine tool 10.
- the machine tool 10 includes a bed 12 as a base, a table 14 attached to a front portion of the upper surface of the bed 12 so as to be movable in a horizontal Z-axis direction (vertical direction in FIG. 1), and an upper surface of the bed 12.
- a column 16 movably mounted in a horizontal X-axis direction (left-right direction in FIG. 1) on a rear portion opposite to the table 14, and a vertical Y-axis direction (vertical to the paper surface in FIG.
- the head stock 18 movably attached to the head stock 18 and the spindle head 20 attached to the head stock 18 and rotatably supporting the spindle 22 around a horizontal axis O constitute a horizontal machining center.
- a tool changer 24 is disposed between the machine tool 10 and the tool magazine 100.
- the tool changer 24 has an exchange arm 24 that can turn around a rotation axis Otc extending in the Z-axis direction.
- the tool magazine 100 includes a base portion 104 installed on a floor surface, a back support portion 102 extending vertically upward from the base portion 104, an outer peripheral guide rail 110 and an inner peripheral guide rail 120 attached to a flat plate-like back support portion 102, A chain assembly 130 extending between the outer peripheral guide rail 110 and the inner peripheral guide rail 120, and a screw-like drive device that drives the chain assembly 130 along the outer peripheral guide rail 110 and the inner peripheral guide rail 120.
- the outer peripheral guide rail 110 and the inner peripheral guide rail 120 extend in parallel with each other at a predetermined interval, and form a circular track for the chain assembly 130 that extends in a generally inverted U shape between the two. ing. More specifically, as shown in FIG. 2, the orbit 180 for the chain assembly 130 includes a semicircular large arc portion 182a disposed at the highest position, and a lower end from one end of the large arc portion 182a.
- a first linear portion 182b extending linearly, a semicircular first small circular arc portion 182c connected to the lower end of the first linear portion 182b and disposed at the lowest position, and the first small circular arc
- a second linear portion 182d extending linearly upward from the portion 182c, a semicircular second small circular arc portion 182e connected to the upper end of the second linear portion 182d and disposed inside the large circular arc portion 182a;
- a third linear portion 182f extending linearly downward from the second small circular arc portion 182e, and connected to the lower end of the third linear portion 182f and disposed at substantially the same height as the first small circular arc portion 182c.
- Half circle A third small arcuate portion 182g of, and a fourth linear portion 182h extending linearly from the small arc portion 182g of the third to large arc portion 182a upward.
- the camshaft 160 is arranged to engage with the chain assembly 130 at the fourth linear portion 182h.
- the outer peripheral guide rail 110 includes first and second guide rails 112 and 114 that are spaced apart from each other in the vertical direction with respect to the back support portion 102.
- the first guide rail 112 of the outer peripheral guide rail 110 is attached to the back support portion 102 at a predetermined interval by a plurality of base pieces 116, and the second guide rail 114 is a plurality of spacer pins ( Are attached to the first guide rail 112 at a predetermined interval.
- the inner peripheral guide rail 120 includes first and second guide rails 122 and 124 that are spaced apart from each other in the vertical direction with respect to the back support portion 102.
- the first and second guide rails 122, Each 124 is formed from a plurality of rail segments.
- the first guide rail 122 of the inner peripheral guide rail 120 is attached to the back support portion 102 at a predetermined interval by a plurality of base pieces 126, and the second guide rail 124 is a plurality of spacer pins. 128 is attached to the first guide rail 122 at a predetermined interval.
- the chain assembly 130 is an endless chain in which the first link member 132 and the second link member 148 are alternately connected by the connecting pin 154.
- the first link member 132 includes two parallel link plates 134 having the same shape, and a block 136 disposed between the two link plates 134.
- the link plate 134 is fixed by the block 136 and the plurality of pins 140 and 146 so as to be separated from each other in parallel.
- the link plate 134 is a substantially U-shaped flat plate member having a base portion 134a fixed to the block 136 and a pair of arm portions 134b extending from the base portion 134a, and receives the pot TP between the pair of arm portions 134b.
- An opening 134c is formed.
- the first link member 132 includes four distal rollers 142 attached to the tip of the arm portion 134b by pins 146 as first rollers, and a block 136 and a corner of the base portion 134a by pins 140 as second rollers. And four proximal rollers 138 mounted between them.
- Two cam followers 144 that engage with the camshaft 160 are attached to the back surface of the block 136. The two cam followers 144 are separated from each other in the moving direction of the first link member 132 by the same distance as the pitch of the screw-shaped camshaft 160.
- the second link member 148 includes two parallel link plates 150 having the same shape, and the two link plates 150 are fixed by a plurality of pins 152 so as to be separated from each other in parallel.
- the link plate 150 is a substantially U-shaped flat plate member having a base portion 150a and a pair of arm portions 150b extending from the base portion 150a, and an opening portion 150c for receiving the pot TP is formed between the pair of arm portions 150b. Is done.
- the arm portion 150 b of the link plate 150 of the second link member 148 is shorter than the arm portion 134 b of the link plate 134 of the first link member 132.
- first and second link members 132 and 148 engage with the pot TP to hold the pot TP in the openings 134c and 150c of the first and second link members 132 and 148. (See FIG. 9).
- the first and second link members 132 and 148 are connected to each other at the center in the width direction of the circular track 180 by the connecting pin 154.
- the chain assembly 130 can be bent in the opposite direction around the individual connecting pins 154.
- the cam follower 144 of the first link member 132 is connected to the first and second inner guide rails 120. It arrange
- the pot TP is disposed in the openings 134c and 150c of the first and second link members 132 and 148 so that a tool (not shown) protrudes on the opposite side of the back support 102.
- the pot TP is held in the openings 134c and 150c through engagement with the leaf spring 156.
- the shifter 170 includes a first link member 132 or a second link member 132 disposed at a tool transfer position 184 on the circular track 180 for the chain assembly 130 formed between the outer peripheral guide rail 110 and the inner peripheral guide rail 120.
- the tool held by the link member 148 is clamped together with the pot TP on which the tool is mounted, and transferred to the shift position 186 where the tool can be exchanged with the tool changer 24, or transferred in the horizontal direction.
- An empty first link member 132 or second link that receives the tool held at the tip of the change arm 26 of the tool changer 24 at the position 186 from the tool changer 24 and waits at the tool transfer position 184. It is conveyed to the member 148 together with the pot PT.
- the shifter 170 includes a base plate 172 fixed to the back support 102, a shift cylinder 174 attached to the base plate 172, and a clamper 176 connected to the piston of the shift cylinder 174. It has.
- the clamper 176 is fixed to the clamp cylinder 176a, the clamp cylinder 176a connected to the piston of the shift cylinder 174, the clamp piston 176b slidably attached to the clamp cylinder 176a in the longitudinal direction of the shift cylinder 174, and the clamp cylinder 176a.
- a fixed arm 176c that engages with one side surface of the pot TP and a movable arm 176d that is pin-coupled to the clamp piston 176b and that can be engaged with and detached from the opposite side surface of the pot TP are provided.
- the movable arm 176d is rotatably constrained to the clamp cylinder 176a and is rotatably connected to the clamp piston 176b, and the distal end of the movable arm 176d is fixed to the fixed arm 176c by the sliding motion of the clamp piston 176b with respect to the clamp cylinder 176a.
- Engages with the side surface of the opposite pot TP (FIGS. 14 and 15) and separates from the side surface (FIGS. 12 and 13).
- the tip of the movable arm 176d is a bifurcated wedge-shaped finger, and when engaged with the side surface of the pot TP, the leaf spring 156 can be spread and gripped to carry the pot TP.
- the chain assembly 130 includes the first link member 132 and the second link member 148.
- the present invention is not limited to this, and the chain assembly is not limited thereto.
- 130 may be formed by connecting the same plurality of link members.
- a chain assembly 190 according to a modification of the first embodiment is formed by connecting the same link member 192 to each other by a connecting pin 198 so as to be rotatable.
- Each of the link members 192 includes a distal roller 194 as a first roller provided at the tip of the arm portion 192a and a proximal roller 196 as a second roller provided at the base. .
- the chain assembly 130 bends in the forward direction at the large arc portion 182a and the first and third small arc portions 182c and 182g of the circular track 180, and the second small arc.
- the portion 182e is bent in the opposite direction.
- the connecting pin 154 that connects the first and second link members 132 and 148 is positioned in the vicinity of the center locus of the tool that circulates, it can be bent in both the forward and reverse directions without increasing the radius of curvature. That is, the tool assembly density can be increased by meandering the chain assembly 130 with as small a curvature as possible, and a tool magazine having a short tool preparation time with the openings 134c and 150c can be realized.
- first and second link members 132 and 148 have openings 134c and 150c
- the first and second rollers (distal roller and proximal roller) 142 and 138 are guided by the outer guide rail 110 and the inner guide. Since the first guide member 144 is provided with a pair of cam followers 144 so that the first link member 132 is in contact with the first and second guide rails 122 and 124 at the same time. Even in the case of a long tool, the chain assembly 130 is not bent or tilted forward and downward, and the chain assembly 130 can be rotated at high speed without worrying about the tool falling.
- the portion corresponding to the large arc portion 182a of the orbital track 180 is generally configured by providing a horizontal linear portion and a relatively small-diameter arc guide that changes the direction at right angles to both ends thereof. Then, it was formed in a large arc shape.
- the large arc portion 182a of the present invention eliminates stress concentration caused by the conventional configuration, and contributes to an inexpensive configuration that does not particularly require high rigidity or quenching.
- the large circular arc shape refers to a shape in which the portion 182a connecting the maximum width of the chain assembly 130 is connected by a smooth curve without including a straight path.
- the pot TP storing the tool to be changed is positioned at the shift position 186 by the shifter 170, and the spindle 22 is positioned at the tool changer 188. This is performed by a rotation operation of the double arm type exchange arm 26 around the axis Otc and a reciprocation operation in the Z axis direction.
- a second embodiment of the present invention will be described with reference to FIGS.
- components common to the first embodiment are indicated by the same reference numerals.
- a chain assembly 130 ′ in which first and second link members 132 and 148 are connected endlessly with a connecting pin 154, an outer peripheral guide rail 110 and an inner peripheral guide rail 120.
- the basic configuration is such that the tool is rotated around by the camshaft 160 and the tool to be replaced is transferred to the shift position 186 by the shifter 170 ′ provided at the tool transfer position 184, the same as the tool magazine 100 of the first embodiment. is there.
- the second embodiment is different from the first embodiment in that the tool is directly attached to the chain assembly 130 'without using the pot TP.
- the tool T includes a tool holder attached to the shank, in addition to the shank and the cutter body connected to the shank.
- a pair of jaws 200 are attached to a link plate 134 or 150 arranged on the front side of two parallel link plates 134 and 150 by fulcrum pins 202.
- a gripper for detachably holding the tool T is provided.
- the pair of jaws 200 are biased toward each other by a spring 204, whereby the gripper grips the flange portion of the tool T. Since the configurations of the first and second link members 132 and 148, the proximal roller 138, the distal roller 142, the cam follower 144, the connecting pin 154, and the like are the same as those in the first embodiment, description thereof is omitted.
- the shifter 170 ′ will be described with reference to FIGS.
- the tool transfer pot 210 advances toward the tool T by the cylinder 214 and grips the tool T.
- the cylinder 214 is fixed to the piston of the shift cylinder 174 via the bracket 212.
- the piston of the shift cylinder 174 is advanced, the tool T should come off the gripper jaw 200 against the biasing force of the spring 204. Is moved to the shift position 186.
- the changed tool T is gripped by the chain assembly 130 'following the reverse process.
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Abstract
Description
図1において、本発明の第1の実施形態による工具マガジン100は、工作機械10の一方の側部に配設される。工作機械10は、基台となるベッド12と、該ベッド12の上面の前方部分に水平なZ軸方向(図1では上下方向)に移動可能に取り付けられたテーブル14と、ベッド12の上面においてテーブル14とは反対側の後方部分に水平なX軸方向(図1では左右方向)に移動可能に取り付けられたコラム16、コラム16の前面に鉛直なY軸方向(図1では紙面に垂直な方向)に移動可能に取り付けられたヘッドストック18と、ヘッドストック18に取り付けられ水平な軸線Oを中心として主軸22を回転可能に支持する主軸頭20とを具備し、横形マシニングセンタを構成している。工作機械10と工具マガジン100との間には工具交換装置24が配設されている。工具交換装置24は、Z軸方向に延びる回転軸線Otcを中心として旋回可能な交換アーム24を有している。
22 主軸
24 工具交換装置
26 交換アーム
100、100′ 工具マガジン
110 外周ガイドレール
120 内周ガイドレール
130、130′ チェーン組立体
132 第1のリンク部材
134 リンクプレート
136 ブロック
138 近位ローラ
142 遠位ローラ
144 カムフォロア
148 第2のリンク部材
150 リンクプレート
154 連結ピン
160 カムシャフト
170、170′ シフター
180 周回軌道
184 工具搬送位置
Claims (8)
- 工具を収納する複数のポットまたは複数の工具をチェーンに着脱可能に保持して周回させるチェーン式工具マガジンにおいて、
前記ポットまたは前記工具を着脱可能に保持する開口部を有したリンク部材であって、開口側に突出した第1のローラと、開口とは反対側に第2のローラとを有するリンク部材と、
前記リンク部材を無端状に複数個結合したチェーンと、
前記チェーンが順方向および逆方向に曲がって蛇行周回するように、前記第1のローラおよび前記第2のローラを案内するガイドと、
前記チェーンを周回駆動する駆動手段と、
を具備することを特徴としたチェーン式工具マガジン。 - 前記チェーンは、前記第1と第2のローラを有した第1のリンク部材と、前記第1と第2のローラを備えていない第2のリンク部材とを具備し、前記第1と第2のリンク部材は、前記チェーンの長手方向に交互に連結されている請求項1に記載のチェーン式工具マガジン。
- 前記第1のリンク部材は、基部と、該基部から前記チェーンの長手方向に対して横断方向に延びる一対の腕部とを有して、前記チェーンの長手方向に対して横断方向に開口する略U字形に形成されており、前記一対の腕部に第1のローラが回転可能に取り付けられ、前記基部に前記第2のローラが回転可能に取り付けられており、
前記第2のリンク部材は、基部と、該基部から前記チェーンの長手方向に対して横断方向に延びる一対の腕部とを有して、前記チェーンの長手方向に対して横断方向に開口する略U字形に形成されており、
前記第2のリンク部材の腕部は、前記第1のリンク部材の腕部よりも短くなっている請求項2に記載のチェーン式工具マガジン。 - 前記第1のリンク部材または前記第2のリンク部材の開口部に保持されている前記ポットまたは前記工具を把持し、該ポットまたは該工具を第1のリンク部材または第2のリンク部材から取り外して、該チェーン式工具マガジンの外部に搬出し、該チェーン式工具マガジンの外部にあるポットまたは工具を把持して該チェーン式工具マガジン内に搬入して、空いている前記第1のリンク部材または第2のリンク部材に該ポットまたは該工具を装着するシフターを更に具備する請求項2または3に記載のチェーン式工具マガジン。
- 前記ガイドは、外周ガイドレールと、内周ガイドレールとを具備し、該外周ガイドレールと内周ガイドレールは所定の間隔をおいて互いに平行に延設されており、両者間に全体的に逆U字形に延びるチェーン組立体のための周回軌道が形成される請求項1~4の何れか1項に記載のチェーン式工具マガジン。
- 前記第1のローラは前記外周ガイドレールに係合し、前記第2のローラは前記内周ガイドレールに係合する請求項5に記載のチェーン式工具マガジン。
- 前記駆動手段は、前記周回軌道に沿って延びるスクリュー状のカムシャフトと、該カムシャフトを回転駆動する駆動モーターとを具備し、
前記第1のリンク部材の基部に前記カムシャフトと係合するカムフォロアが設けられている請求項3に記載のチェーン式工具マガジン。 - 前記カムフォロアは、前記カムシャフトと係合していないときに、前記ガイドのうち前記第2のローラと係合する内周ガイドレールに係合している請求項7に記載のチェーン式工具マガジン。
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US15/034,438 US10245692B2 (en) | 2013-11-08 | 2013-11-08 | Chain-type tool magazine |
PCT/JP2013/080297 WO2015068278A1 (ja) | 2013-11-08 | 2013-11-08 | チェーン式工具マガジン |
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