WO2001087537A1 - Dispositif de blocage, machine de broyage et procede d'usinage d'une longue piece - Google Patents

Dispositif de blocage, machine de broyage et procede d'usinage d'une longue piece Download PDF

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Publication number
WO2001087537A1
WO2001087537A1 PCT/JP2000/003261 JP0003261W WO0187537A1 WO 2001087537 A1 WO2001087537 A1 WO 2001087537A1 JP 0003261 W JP0003261 W JP 0003261W WO 0187537 A1 WO0187537 A1 WO 0187537A1
Authority
WO
WIPO (PCT)
Prior art keywords
work
axis
chuck
headstock
stock
Prior art date
Application number
PCT/JP2000/003261
Other languages
English (en)
Japanese (ja)
Inventor
Isao Kataoka
Fumio Sakurai
Original Assignee
Kataoka Machine Tools Mfg. Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kataoka Machine Tools Mfg. Co., Ltd. filed Critical Kataoka Machine Tools Mfg. Co., Ltd.
Priority to PCT/JP2000/003261 priority Critical patent/WO2001087537A1/fr
Publication of WO2001087537A1 publication Critical patent/WO2001087537A1/fr

Links

Classifications

    • 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
    • B23C3/08—Milling cams, camshafts, or the like
    • 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
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/041—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers step by step
    • B23Q7/042—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers step by step for the axial transport of long workpieces

Definitions

  • the present invention relates to a work holding device, a milling machine and a processing method useful for processing a long object such as a large engine camshaft and a spool of a valve.
  • a work holding device for holding or rotating a workpiece with both head stock and tail stock chucks, and a machine for processing while holding a work with the work holding device, wherein the chuck is used to hold the workpiece horizontally with both chucks. Of the workpiece when held
  • the tailstock is configured to be movable in the longitudinal direction (hereinafter referred to as “w-axis direction”),
  • the two clamping points of the work are held by the chucks of the headstock and the tail stock, and after machining the intermediate portion of the work held by the two chucks, another position of the work is held by the two chucks. Hold and replace, further process the middle part of the peak held by both chucks,
  • Camshafts used in heavy trucks, generators, marine engines, etc. are long Some of the long objects have a length of 500 mm.To process such a long object, the conventional method needs to hold the work at the maximum length of the work. A machine sized to add the length of the device was required.
  • the present invention relates to an apparatus for processing a workpiece while holding and rotating the work with both chucks of a headstock and a tailstock, wherein the tailstock is configured to be movable in the W-axis direction, and the work held by the chucks is provided. After machining the middle part of the work, another position of the work is held and replaced by the two chucks, and the middle part of the work held by the two chucks is further processed,
  • the present invention relates to a work holding device for holding a work with a head stock including a chuck, a work head, and a rotation cylinder, and a tail stock including a chuck, a tail head, and a rotation cylinder.
  • the chucks for the headstock and the tailstock are arranged so as to have the same axis, and a hollow hole is made to pass through the axis so that the work can pass through the hollow hole.
  • a C-axis servomotor is attached to one or both of the work head and the tail head, and the head stock chuck or the tail stock chuck or both chucks are driven to rotate.
  • the headstock is fixed, but the tailstock is installed so as to be movable in the W-axis direction, and is moved in the W-axis direction by the rotation of the W-axis ball screw driven by the W-axis servo motor.
  • a work holding device is constructed.
  • the milling unit rotates the milling cutter at a high speed and machine the outer surface of the workpiece with a carbide insert attached to the outer periphery of the milling cutter.
  • a milling machine is configured by being installed so as to be movable in the X-axis direction and the Z-axis direction parallel to the W-axis.
  • the first processing method for processing the work (camshaft) 11 illustrated in FIG. 3 is shown and described in FIG.
  • the workpiece 1 1 has a processed part 1 2 (1 a, 1 2b, 12c, 12d, 12e, 12f) and the journals 14 (14a14b, 14c, 14d, 14e, 14f, 14g) are alternately arranged.
  • the journal portions 14a and 14b of the work 11 are held by the tail stock chuck claw 5a and the head stock chuck claw 4a, and the processing portion 12a is machined ( See FI G. 5 (a)).
  • the tail stock 2 is stopped at a position where the claw 4a of the chuck of the head stock holds the journal portion 14c, and the journal 14c is held by the claw 4a of the head stock.
  • tail claw 5a of the tail stock move the tailed stock 2 in the direction approaching the head stock 1 on the W axis, and hold the journal portion 14b with the tail claw 5a of the tail stock. Stop tailstock 2 with.
  • journal portion 14b is held by the tail claw jaws 5a of the tail stock, and the processed portion 12b is processed (see (b) of FIG. 5).
  • the same work changeover work as above is repeated, and the journal parts 14 d and 14 c are held by the claws 4 a and 5 a of both chucks, and the processing part 12 c is processed. (See Fig. 5 (c)).
  • the second processing method is shown and described in Fig. 6.
  • the steady rest 16 is used, and the middle between the position of the claw 4 a of the headstock chuck and the position held by the steady rest 16 is processed.
  • the headstock hook 4a and the steady rest 16 are released, and the shaft end is held from the position held by the steady rest 16 with the tail stock chuck 5a.
  • the end of the work the work 11 also moves with the tailed stock 2.
  • the tail stock 2 is stopped at the position where the chuck 4a of the headstock holds the journal 14c, and the journal 14c is held by the hook 4a of the headstock and the steady rest 16 is held.
  • the journal 14b is retained, and the processing section 12b is processed (see FIG. 6 (b)).
  • journal portion 14 is successively changed by the headstock claw 4a and the steady rest 16 to process the processing portion 12 (FIG. 6 (d), (d) e) and (f)), and all the processing parts 12 (1a, 12b, 12c, 12d, 12e, 12f) can be processed. If two sets of milling units are installed, machining at two places can be performed simultaneously. Furthermore, if a carbide insert with a different shape is installed, not only the cam part 15a but also the group part 15b can be machined at the same time. Therefore, it is suitable for the case where the processing of the group part 15b is required.
  • FIG. 1 shows a first embodiment of a milling machine 17 according to the present invention.
  • FIG. 2 shows a second embodiment of a milling machine 18 having two sets of milling units 3.
  • FIG. 3 is a view showing an example of a workpiece (cam shaft) 11 to be processed by the present invention.
  • FIG. 4 is a diagram showing a state in which the journal portion 14 is held by the tailstock chuck claws 5a and the headstock chuck claws 4a, and the processing portion 12 is processed.
  • FIG. 5 is a diagram showing a first processing method.
  • FIG. 6 is a view showing a second processing method.
  • FIG. 1 shows a milling machine 17 having one set of milling units 3.
  • the work holding device consists of a head stock 1 and a tail stock 2.Head stock 1 is fixed to the base 25, and tail stock 2 is connected to the base 2 via the W-axis rail 21 and the W-axis guide 22. 5 and is moved in the W-axis direction by the rotation of a W-axis ball screw 23 driven by a W-axis servo motor 24.
  • the headstock 1 includes a chuck 4, a work head 8, a rotation cylinder 6, and a C-axis servomotor 7, and the claw 4a of the chuck 4 is opened and closed by driving the rotation cylinder 6.
  • the chuck 4 is rotatably supported by a work head 8, and is rotated by driving a C-axis servo motor 7.
  • the tail stock 2 comprises a chuck 5, a tail head 9 and a rotation cylinder 6, and the claw 5a of the chuck 5 is opened or closed by driving the rotation cylinder 6.
  • the chuck 5 is rotatably supported by the tail head 9. When the work 11 is held, the chuck 5 receives the rotational force of the headstock chuck 4 and rotates together with the work 11.
  • headstocks 4 and 5 of the headstock 1 and the tailstock 2 are arranged so that they have the same axis, and the center holes of the headstock 1 and the tailstock 2 penetrate through the hollow holes la and 2a.
  • Reference numeral 11 denotes a work holding device that can penetrate the hollow holes 1a and 2a.
  • One set of the milling unit 3 is attached to the above-mentioned work holding device to constitute a milling machine 17.
  • the milling unit 3 is supported by an X-axis guide 41 and an X-axis rail 42 so as to be movable in the X-axis direction, and an X-axis ball screw driven by an X-axis servo motor.
  • the Z-axis is moved in the X-axis direction by the rotation of the Z-axis, is movably supported in the Z-axis direction by the Z-axis guide 45 and the Z-axis rail 46, and is driven by the Z-axis servo motor 48. Movement in the Z-axis direction by rotation of ball screw 47.
  • the milling unit 3 is composed of a milling cutter 32, a milling head 31 and a motor 35, and on the outer periphery of the milling cutter 32, there is a carbide sensor 3 2a for processing the surface of the work 11. It is attached.
  • the milling cutter 3 2 is rotatably supported by the milling head 31, and transmits the torque of the motor 35 via the driving pulley 34, the driving belt 36, the pulley 33, and the milling head 31. Then, the milling cuts 32 are rotated.
  • FIG. 2 shows a milling machine 18 having two sets of milling units 3.
  • the work holding device of the milling machine 18 is also equipped with the C-axis servo motor 7 on the tail head 9 of the tail stock 2 and the chuck 5 of the tail stock 2 is also driven and rotated. Different from work holding device. This is because the work 11 is not twisted even when heavy cutting is performed by the two milling units 3.
  • the C-axis servomotor 7, W-axis servomotor 24, X-axis servomotor, and Z-axis servomotor 48 are numerically controlled by a computer. Because the cam surface of the force shaft 11 changes in a complicated manner depending on the position angle in the rotation direction of the shaft, it is necessary to control the position of the milling unit 3 in the X-axis and Z-axis directions according to the position angle of the C-axis. is there. Also, the W-axis servo motor 24 is used to automate the operation of changing the holding position of the work 11. Industrial applicability
  • the work holding device and the processing method according to the present invention are not limited to a milling machine.
  • a grinding unit may be attached to grind a long part, or a turret or saucer. It can also be used for cutting long objects.
  • the milling machine and the processing method according to the present invention can be used for a long work such as a long camshaft used for a large truck, a generator, a marine engine, etc., and a spool used for a large solenoid valve. Suitable for milling.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

L'invention concerne un dispositif de blocage servant à usiner une longue pièce, par exemple un arbre à cames ou un tiroir de moteur de grande dimension ; une machine de broyage ; et un procédé d'usinage d'une longue pièce. Ledit procédé consiste à bloquer une pièce sur deux positions de serrage à l'aide des mandrins (4) et (5) d'une poupée fixe (1) et d'une contre-poupée (2), à changer les positions de serrage sur d'autres positions de travail suite à l'usinage de la partie centrale de la pièce bloquée par les deux mandrins (4) et (5), puis à usiner la partie centrale de la pièce bloquée par les deux mandrins (4) et (5), à répéter l'opération de changement de blocage de la pièce, et chaque fois que la pièce est changée, à changer la position de la pièce bloquée pour l'usinage par les deux mandrins (4) et (5) de façon que toute la longueur de la pièce puisse être usinée.
PCT/JP2000/003261 2000-05-19 2000-05-19 Dispositif de blocage, machine de broyage et procede d'usinage d'une longue piece WO2001087537A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/003261 WO2001087537A1 (fr) 2000-05-19 2000-05-19 Dispositif de blocage, machine de broyage et procede d'usinage d'une longue piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/003261 WO2001087537A1 (fr) 2000-05-19 2000-05-19 Dispositif de blocage, machine de broyage et procede d'usinage d'une longue piece

Publications (1)

Publication Number Publication Date
WO2001087537A1 true WO2001087537A1 (fr) 2001-11-22

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PCT/JP2000/003261 WO2001087537A1 (fr) 2000-05-19 2000-05-19 Dispositif de blocage, machine de broyage et procede d'usinage d'une longue piece

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737401A (zh) * 2014-01-07 2014-04-23 南通环球转向器制造有限公司 用于加工应急泵凸轮轴的夹具及使用其加工凸轮轴的方法
CN105127790A (zh) * 2015-09-14 2015-12-09 苏州东方模具科技股份有限公司 玻璃模具外圆加工用的工装夹具
CN106112600A (zh) * 2016-08-20 2016-11-16 无锡鹰贝精密轴承有限公司 阀芯铣槽工装
CN107855812A (zh) * 2017-11-08 2018-03-30 信利光电股份有限公司 一种细长轴类零件车削的加工工装及加工方法
CN113182909A (zh) * 2021-05-08 2021-07-30 安徽朗轶工业自动化系统有限公司 一种电机壳体的加工装置及其加工工艺
CN113561202A (zh) * 2021-08-20 2021-10-29 广东智源机器人科技有限公司 机械爪及食品制作设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05192801A (ja) * 1991-08-07 1993-08-03 Ikura Seiki Seisakusho:Kk 自動棒材加工用ｎｃ旋盤及びその加工方法
JPH07178601A (ja) * 1993-12-22 1995-07-18 Chiyoda Kogyo Kk 切断加工装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05192801A (ja) * 1991-08-07 1993-08-03 Ikura Seiki Seisakusho:Kk 自動棒材加工用ｎｃ旋盤及びその加工方法
JPH07178601A (ja) * 1993-12-22 1995-07-18 Chiyoda Kogyo Kk 切断加工装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103737401A (zh) * 2014-01-07 2014-04-23 南通环球转向器制造有限公司 用于加工应急泵凸轮轴的夹具及使用其加工凸轮轴的方法
CN105127790A (zh) * 2015-09-14 2015-12-09 苏州东方模具科技股份有限公司 玻璃模具外圆加工用的工装夹具
CN106112600A (zh) * 2016-08-20 2016-11-16 无锡鹰贝精密轴承有限公司 阀芯铣槽工装
CN107855812A (zh) * 2017-11-08 2018-03-30 信利光电股份有限公司 一种细长轴类零件车削的加工工装及加工方法
CN113182909A (zh) * 2021-05-08 2021-07-30 安徽朗轶工业自动化系统有限公司 一种电机壳体的加工装置及其加工工艺
CN113561202A (zh) * 2021-08-20 2021-10-29 广东智源机器人科技有限公司 机械爪及食品制作设备

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