WO2022190176A1 - Dispositif de serrage de pièce à travailler - Google Patents

Dispositif de serrage de pièce à travailler Download PDF

Info

Publication number
WO2022190176A1
WO2022190176A1 PCT/JP2021/009045 JP2021009045W WO2022190176A1 WO 2022190176 A1 WO2022190176 A1 WO 2022190176A1 JP 2021009045 W JP2021009045 W JP 2021009045W WO 2022190176 A1 WO2022190176 A1 WO 2022190176A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
work
clamp block
clamping device
unit
Prior art date
Application number
PCT/JP2021/009045
Other languages
English (en)
Japanese (ja)
Inventor
柳崎淳
Original Assignee
株式会社Fuji
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 株式会社Fuji filed Critical 株式会社Fuji
Priority to JP2023504893A priority Critical patent/JPWO2022190176A1/ja
Priority to PCT/JP2021/009045 priority patent/WO2022190176A1/fr
Publication of WO2022190176A1 publication Critical patent/WO2022190176A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/02—Loading, unloading or chucking arrangements for workpieces
    • B23F23/06—Chucking arrangements
    • 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
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means

Definitions

  • the present invention relates to a work clamping device compatible with a work having a tapered hole formed in the center.
  • Patent Literature 1 listed below discloses an example of such a work clamping device.
  • a first support is provided on a base on a hobbing machine table, and a second support is provided on an upper center support via a rotary joint so as to face the first support. is installed.
  • the first support is provided with three supporting claws for supporting the lower end surface of the work with the center hole formed thereon, and three centering claws for centering the work.
  • the support claws are arranged at positions corresponding to the size of the work, and the centering claws are brought into contact with the inner diameter surface of the work for centering.
  • Conventional work clamping devices had various problems. For example, when the center hole of the workpiece is tapered, the conventional apparatus with a chuck mechanism that clamps the workpiece with centering claws cannot handle the workpiece, and a new workpiece clamping apparatus with a special chuck mechanism has to be manufactured. Further, the conventional work clamping device is configured to center and support the work from below. Therefore, when it is necessary to reverse the work on the next processing machine, etc., the autoloader that transports the work is once sent to the reversing device, where the reversed work is re-grabbed and transferred to the next processing machine. I had to send.
  • an auxiliary loader for reversing the work is incorporated in a processing machine such as a hobbing machine, where the work is reversed and conveyed to the next process by an autoloader.
  • a processing machine such as a hobbing machine
  • an autoloader for reversing the work
  • new equipment is required, which is costly and hinders the downsizing of the processing machine.
  • an object of the present invention is to provide a work clamping device that makes it possible to send the work to the next process in an inverted state.
  • a work clamping device includes a lower unit in which a lower clamp block that supports a work from below is rotated by a drive motor, and an upper clamp block that holds the work from above is coaxial with the lower clamp block.
  • an upper unit rotatable by a rotating shaft; a lift mechanism for lifting and lowering the upper unit along the rotating shaft; an actuator for moving the upper unit in the direction of the rotating shaft in an elevating section of the lift mechanism; an upper and lower unit connecting mechanism for pulling downward by gripping a pull-in rod on the rotating shaft that protrudes outward inside the lower unit; a tapered arbor that is fitted under the biasing force of the biasing member.
  • the upper unit is lowered to the clamping position by the lift mechanism, and the work is sandwiched between the lower clamp block and the upper clamp block by operating the actuator.
  • centering is performed by fitting the tapered arbor biased by the biasing member into the center hole of the tapered workpiece, and the pull rod protrudes downward from the upper unit by the upper unit connecting mechanism. is pulled downward inside the lower unit to securely clamp the work.
  • the tapered arbor is caught in the stop hole. The workpiece is lifted and can be removed in an inverted state.
  • FIG. 3 is a perspective view showing a hobbing machine module;
  • FIG. 3 is a perspective view showing a hobbing machine module with an exterior cover removed;
  • FIG. 4 is a cross-sectional view showing the work clamping device during work delivery;
  • FIG. 4 is a cross-sectional view of the work clamping device showing one stage of the work clamping process;
  • FIG. 4 is a cross-sectional view of the work clamping device showing one stage of the work clamping process;
  • FIG. 4 is a cross-sectional view of the work clamping device showing one stage of the work clamping process;
  • FIG. 4 is a cross-sectional view showing the work clamping device when the work is released;
  • FIG. 1 is a front view showing the processing machine line.
  • a lathe, a machining center, an inspection machine, or the like is installed side by side between a work loading module 1 on the right end of the drawing, which is a work loading section, and a work discharge module 11 on the left end of the drawing, which is a work unloading section.
  • Various automatic work machines such as lathes, machining centers, inspection machines, and hobbing machines are modularized.
  • Lathe modules 2 and 3 and an inspection module 4 are installed in order next to the work loading module 1, and the dimensions of the work that has undergone the first and second machining are checked.
  • a work table module 5 for receiving and checking the quality of the work continues, and a machining center module 6 for performing third processing such as boring and drilling is installed.
  • a second work table module 7 for temporarily placing and removing a work and a hobbing machine module 8 for gear cutting as the fourth processing are installed.
  • a removing module 9 and a washing module 10 for washing off chips and the like adhering to the work are installed in this order.
  • the processing machine line 100 predetermined processing and processing are performed while the work moves between various modules 1 to 11 in order.
  • the processing machine line 100 is provided with a workpiece transport robot 15 for transporting workpieces to the respective modules 1-11.
  • the workpiece transfer robot 15 is a multi-joint robot arm that moves on rails provided in front of the modules 1-11.
  • the modules 1 to 11 are covered with an exterior cover 16 having a unified appearance, and as shown in FIG. 2, a transfer space 18 in which a workpiece transfer robot 15 moves is formed by an openable front cover 17. As shown in FIG.
  • FIG. 2 is a perspective view showing the hobbing machine module 8
  • FIG. 3 is a perspective view showing the hobbing machine module 8 with the exterior cover 16 and the front cover 17 removed.
  • the hobbing machine module 8 is assembled on a movable bed 21 equipped with wheels like other modules, and is movable in the front-rear direction along rails 121 fixed to the upper surface of the base 12. .
  • the width dimensions of the various modules 1 to 11 are unified, two modules can be mounted on one base 12, and the hobbing machine module 8 has a double width dimension.
  • the longitudinal direction of the machine body is the X-axis
  • the width direction of the machine body is the Y-axis
  • the vertical direction is the Z-axis.
  • a column 23 on a movable bed 21 is movable in the X-axis direction in the longitudinal direction of the machine body, and a saddle 24 is attached to the front surface of the column 13 so as to be slidable in the Z-axis direction. It is configured to be raised and lowered by a Z-axis servomotor 25 .
  • a hob head 26 that supports a hob 27 is attached to the saddle 24 .
  • the hob 27 is rotatably supported by a rotating shaft in the Y-axis direction, and is rotated during gear cutting by a hob motor.
  • the hob head 26 is structured to be movable in the Y-axis direction with respect to the saddle 24 by a Y-axis servomotor 28 so that the position of the blade of the hob 27 can be changed.
  • a control panel 29 for controlling each driving part of the hobbing machine module 8 is mounted on the movable bed 21 .
  • FIG. 4 is a sectional view showing the workpiece clamping device 30, showing a part of the workpiece transfer robot 15 in a workpiece transfer state.
  • the workpiece clamping device 30 is configured vertically such that a lower unit 31 and an upper unit 32 are coaxial with the center of rotation aligned with the Z axis.
  • a support column 33 is erected on the movable bed 21 to constitute a lift mechanism for moving the upper unit 32 up and down in the Z-axis direction. That is, a vertical rail is fixed to the support column 33, and a lift 34 holding the upper unit 32 is slidably assembled thereon.
  • a Z-axis servomotor 35 is provided at the top of the support column 33, and its rotational output is converted into linear motion of the lift 34 by a ball screw.
  • a table 41 is fixed to a movable bed 21, and a hollow spindle 42 is rotatably supported therein with its center of rotation aligned with the Z axis. 44.
  • a lower clamp block 47 is attached to the spindle 42 via connecting blocks 45 and 46 so as to rotate together.
  • the connecting blocks 45, 46 and the lower clamping block 47 are formed with a hollow hole coaxial with the spindle 42, in which the pull-in shaft 51 is assembled while being constantly biased downward by a spring 52.
  • the spring 52 is formed by stacking a plurality of disc springs in the axial direction.
  • a piston rod 531 is inserted into the spindle 42 from below.
  • a hydraulic cylinder portion 54 is formed in the lower portion of the lower unit 31, and a piston 53 integrated with a piston rod 531 is incorporated.
  • a port 541 is formed in the lower pressurizing chamber of the piston 53 in the cylinder portion 54, and the piston 53 is displaced upward as shown in the drawing by hydraulic oil supplied from the port 541. As shown in FIG. That is, the piston 53 is configured to push up the pull-in shaft 51 against the biasing force of the spring 52 .
  • a cylindrical support portion 341 is formed in the lift 34 , and the upper unit 32 is slidably inserted into the support portion 341 via a cylindrical lifting pipe 61 .
  • a hydraulic cylinder 37 is fixed to the lift 34 via a bracket 36 , and a lifting pipe 61 is connected to the hydraulic cylinder 37 via a connecting block 62 . Therefore, the upper unit 32 is configured to move up and down with respect to the lift 34 by extending and retracting the piston rod 371 in the hydraulic cylinder 37 .
  • a shaft 65 having a flange portion 651 is inserted from below into the lifting pipe 61 and the skirt block 64 fixed to its lower end.
  • the shaft 65 is rotatably held by a bearing with the lifting pipe 61, and in addition to the radial bearing, a thrust bearing is provided to receive an axial load.
  • the hydraulic cylinder 37 and the shaft 65 are configured so that their centers are coaxially overlapped along the Z-axis.
  • the upper clamp block 66 and the pull-in rod 67 are integrally fixed to the flange portion 651 of the shaft 65 .
  • the cylindrical upper clamp block 66 is closed at the top by a flange portion 671 of the pull-in rod 67, and incorporates therein a tapered arbor 71 that is penetrated by the pull-in rod 67 protruding downward.
  • the pull-in rod 67 has a head portion 672 formed by a circular recess formed in the tip portion thereof.
  • a member 55 is adapted to be hooked.
  • the workpiece W to be processed has a tapered center hole H with an inclined inner peripheral surface so that the diameter of the lower side becomes smaller at the center. Therefore, the tapered arbor 71 has a tapered surface matching the angle of the central hole H. As shown in FIG.
  • the tapered arbor 71 is attached so as not to fall downward by hooking on the flange portion, and is urged downward by a spring 72 located above.
  • the upper clamp block 66, the pull-in rod 67, and the tapered arbor 71 are assembled by screwing or the like so as to be disassembled, and are integrally fixed to the shaft 65 by screwing. That is, the tapered arbor 71 can be recombined according to the hole shape of the work W.
  • the operation of the work clamping device 30 will be described along with the processing of the work W of the hobbing machine in the processing machine line 100.
  • the first processing and second processing of the lathe modules 2 and 3 and the dimension confirmation of the inspection module 4 are performed as described above.
  • a third machining is performed in the machining center module 6 after a quality check is performed in the work table module 5 .
  • the workpieces are conveyed in order by the workpiece transfer robot 15 on the right side of FIG.
  • the post-process the workpiece is taken out from the workpiece table module 7, gear-cut by the hobbing machine module 8, deburred by the deburring module 9, and chips and the like washed off by the cleaning module 10.
  • a workpiece W is carried into the hobbing machine module 8 by a workpiece transfer robot 15 as shown in FIG.
  • a robot hand (not shown in the drawing) equipped with a pair of chucks is provided at the tip of the work transfer robot 15.
  • One of the chucks removes the processed work Wa, and the other reversed chuck holds a new work W. , is placed on the empty lower clamp block 47 .
  • 5 to 7 are diagrams showing step by step the work clamping process of the work clamping device 30 that holds such a work W so that it can be processed.
  • the upper unit 32 held by the lift 34 is lowered by driving the Z-axis servomotor 35 .
  • the upper clamp block 66 is placed above the work W at a certain distance, and the downwardly protruding drawing rod 67 penetrates the work W and is inserted into the drawing hole 511 formed in the drawing shaft 51 . be done.
  • the hydraulic cylinder 37 is extended while the height of the upper unit 32 is kept constant. As a result, the lifting pipe 61 and the shaft 65 rotatably held therein are lowered.
  • the upper clamp block 66 is brought into contact with the work W, and the work W is sandwiched between the upper clamp block 66 and the lower clamp block 47 from above and below.
  • the taper arbor 71 is pushed into the center hole H of the work W by the spring 72 and centered.
  • the pull-in rod 67 is further inserted deeply into the pull-in hole 511 of the pull-in shaft 51 . That is, in the lower unit 31 up to this point, the hydraulic oil supplied from the port 541 into the cylinder portion 54 pressurizes the piston 53 from below to push up the pull-in shaft 51 .
  • the rotation is transmitted to the spindle 42 via the worm gear 44 by driving the spindle motor 43, and the lower unit 31 and the lower clamp block 47 are integrally rotated. do. Since the piston rod 531 is separated from the pull-in shaft 51 when the piston 53 is lowered, the pull-in shaft 51 and the spring 52 also rotate integrally with the spindle 42 . In the upper unit 32 , the pull-in rod 67 and the upper clamp block 66 held by the pull-in shaft 51 rotate while being supported by the shaft 65 . Therefore, in the hobbing machine module 8, the hob 27 synchronized in rotation with respect to the rotating work W moves in the Z-axis direction, so that the outer periphery of the work W is gear-cut.
  • FIG. 8 is a cross-sectional view of the work clamping device 30 in the state of releasing the machined work, and in particular only the upper unit 32 is shown.
  • hydraulic oil is first supplied from the port 541 into the cylinder portion 54, and the piston 53 is returned to the state shown in FIG.
  • the pull-in shaft 51 is pushed up and the pull-in rod 67 is released from the piece member 55 .
  • the Z-axis servomotor 35 drives the lift 34 so that the upper unit 32 is separated from the lower unit 31, and the workpiece Wa is released from the clamped state.
  • the tapered arbor 71 is strongly fitted into the center hole H of the workpiece W by the spring 72 when clamping before machining. is lifted.
  • the processed work Wa is left on the lower clamp block 47 (lower unit 31).
  • the processed work Wa is grasped from the lower side (opposite side), contrary to the conventional art.
  • the present invention is not limited to this, and various modifications can be made without departing from the scope of the invention.
  • a work clamping device constituting a hobbing machine was described, but the work clamping device may be constructed as a work clamping device such as a grinding machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Workpieces (AREA)

Abstract

Le dispositif de serrage de pièce à travailler selon l'invention permet à une pièce à travailler d'être envoyée à l'étape suivante dans un état inversé, le dispositif de serrage de pièce à travailler comportant une unité inférieure dans laquelle un bloc de serrage côté inférieur qui supporte une pièce à travailler depuis le dessous est entraîné en rotation par un moteur d'entraînement, une unité supérieure dans laquelle un bloc de serrage côté supérieur, qui appuie sur la pièce à travailler depuis le côté supérieur de celle-ci, peut être entraîné librement en rotation par un arbre rotatif qui est coaxial au bloc de serrage côté inférieur, un mécanisme de levage qui élève et abaisse l'unité supérieure le long de l'arbre rotatif, un actionneur qui déplace l'unité supérieure dans la direction de l'arbre rotatif dans une partie d'élévation/abaissement du mécanisme de levage, un mécanisme de liaison d'unité supérieure/inférieure qui rétracte vers le bas une tige de rétraction sur l'arbre rotatif faisant saillie vers le bas depuis l'unité supérieure en saisissant la tige de rétraction à l'intérieur de l'unité inférieure, et un arbre conique qui est agencé dans un état dans lequel la tige de rétraction traverse celui-ci et est inséré par la force de poussée d'un élément de poussée dans un trou central de la pièce à travailler fixée à une partie conique.
PCT/JP2021/009045 2021-03-08 2021-03-08 Dispositif de serrage de pièce à travailler WO2022190176A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2023504893A JPWO2022190176A1 (fr) 2021-03-08 2021-03-08
PCT/JP2021/009045 WO2022190176A1 (fr) 2021-03-08 2021-03-08 Dispositif de serrage de pièce à travailler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/009045 WO2022190176A1 (fr) 2021-03-08 2021-03-08 Dispositif de serrage de pièce à travailler

Publications (1)

Publication Number Publication Date
WO2022190176A1 true WO2022190176A1 (fr) 2022-09-15

Family

ID=83227522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/009045 WO2022190176A1 (fr) 2021-03-08 2021-03-08 Dispositif de serrage de pièce à travailler

Country Status (2)

Country Link
JP (1) JPWO2022190176A1 (fr)
WO (1) WO2022190176A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117943630A (zh) * 2024-03-27 2024-04-30 太原正天盖尔机电设备有限公司 一种齿轮加工夹紧装置及齿轮加工机床及方法
CN117983902A (zh) * 2024-04-07 2024-05-07 常州江泉传动科技有限公司 一种齿轮减速机生产用行星齿轮加工装置
CN117983902B (zh) * 2024-04-07 2024-06-04 常州江泉传动科技有限公司 一种齿轮减速机生产用行星齿轮加工装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0563728U (ja) * 1992-01-31 1993-08-24 本田技研工業株式会社 歯車研削機用ワーク支持装置
JP2001287111A (ja) * 2000-04-11 2001-10-16 Koyama:Kk ロードホイールの仕上げ装置および仕上げ方法
JP2003175438A (ja) * 2001-12-10 2003-06-24 Honda Motor Co Ltd 加工機用治具の冷却構造
JP2005262354A (ja) * 2004-03-17 2005-09-29 Fuso Engineering Corp ワーク切削用治具およびワーク切削用加工ライン
JP2013202746A (ja) * 2012-03-29 2013-10-07 Aisin Aw Co Ltd 加工機用の回転支持治具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0563728U (ja) * 1992-01-31 1993-08-24 本田技研工業株式会社 歯車研削機用ワーク支持装置
JP2001287111A (ja) * 2000-04-11 2001-10-16 Koyama:Kk ロードホイールの仕上げ装置および仕上げ方法
JP2003175438A (ja) * 2001-12-10 2003-06-24 Honda Motor Co Ltd 加工機用治具の冷却構造
JP2005262354A (ja) * 2004-03-17 2005-09-29 Fuso Engineering Corp ワーク切削用治具およびワーク切削用加工ライン
JP2013202746A (ja) * 2012-03-29 2013-10-07 Aisin Aw Co Ltd 加工機用の回転支持治具

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117943630A (zh) * 2024-03-27 2024-04-30 太原正天盖尔机电设备有限公司 一种齿轮加工夹紧装置及齿轮加工机床及方法
CN117983902A (zh) * 2024-04-07 2024-05-07 常州江泉传动科技有限公司 一种齿轮减速机生产用行星齿轮加工装置
CN117983902B (zh) * 2024-04-07 2024-06-04 常州江泉传动科技有限公司 一种齿轮减速机生产用行星齿轮加工装置

Also Published As

Publication number Publication date
JPWO2022190176A1 (fr) 2022-09-15

Similar Documents

Publication Publication Date Title
EP1952938B1 (fr) Appareil d'usinage avec plusieurs lunettes de support de pièce
JPH0453601A (ja) 旋盤
US3516149A (en) Machining apparatus with automatic tool changing means
CA2628523C (fr) Appareil de mise en place d'un outil de coupe a usinage interne
WO2022190176A1 (fr) Dispositif de serrage de pièce à travailler
JP5843452B2 (ja) ロボットおよびワーク加工システム
JP2009028869A (ja) Ｎｃ旋盤
CN211516129U (zh) 一种加工回转风机外壳摇臂钻床工作台
JP2720148B2 (ja) 工作物固定用治具装置
JP4898768B2 (ja) ディスク移送用媒体
CN213002655U (zh) 一种立式车床卸料装置
JPH0890302A (ja) 金属工作機械
JP4839479B2 (ja) 内歯シェービング装置
JPH1119802A (ja) 主軸移動型立形工作機械におけるワーク載置装置
JP2559648B2 (ja) 工作機械における工作物の反転方法及びその装置
JP4100645B2 (ja) 工作機械のパレット交換装置
JP2527661B2 (ja) 工作物固定用治具装置
JPH05345245A (ja) 工作機械
KR200313889Y1 (ko) 고압용기의 주입구 가공장치
JPH05309505A (ja) Ｎｃ旋盤
JPH0822482B2 (ja) 工作物保持装置
JP2001341003A (ja) 棒状工作物供給方法および装置
JP2006341367A (ja) 内歯シェービング装置
JP2000263360A (ja) 主軸移動型工作機械における工作物載置装置
CN117206961A (zh) 一种用于数控车床自动上下料装置及其使用方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21930035

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2023504893

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21930035

Country of ref document: EP

Kind code of ref document: A1