WO2015102163A1 - Virole de commande de jet - Google Patents

Virole de commande de jet Download PDF

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Publication number
WO2015102163A1
WO2015102163A1 PCT/KR2014/003208 KR2014003208W WO2015102163A1 WO 2015102163 A1 WO2015102163 A1 WO 2015102163A1 KR 2014003208 W KR2014003208 W KR 2014003208W WO 2015102163 A1 WO2015102163 A1 WO 2015102163A1
Authority
WO
WIPO (PCT)
Prior art keywords
coolant
groove
collet
cylindrical member
jet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2014/003208
Other languages
English (en)
Korean (ko)
Inventor
박광오
정우창
강길수
박정완
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DINE Inc
Original Assignee
DINE Inc
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 DINE Inc filed Critical DINE Inc
Priority to CN201480071916.4A priority Critical patent/CN105873702B/zh
Publication of WO2015102163A1 publication Critical patent/WO2015102163A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
    • B23B31/201—Characterized by features relating primarily to remote control of the gripping means
    • B23B31/202—Details of the jaws
    • 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
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/28—Features relating to lubricating or cooling
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1015—Arrangements for cooling or lubricating tools or work by supplying a cutting liquid through the spindle
    • B23Q11/1023—Tool holders, or tools in general specially adapted for receiving the cutting liquid from the spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/24—Cooling or lubrication means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/126—Seals

Definitions

  • the present invention relates to a collet for jet coolant for securing a cutting tool to a tool holder.
  • cutting tools such as end mills are used in engagement with tool holders such as milling chucks.
  • the collet is inserted into the mounting portion of the tool holder, and the cutting tool is inserted into and fixed to the hollow portion of the collet, so that the cutting tool and the tool holder may be fastened to each other.
  • the collet may be provided with an elongated slot so that its volume can be reduced and compressed with the cutting tool.
  • This slot may generally be formed to extend to the open end of the collet so that it is exposed to the outside of the toolholder.
  • the chip generated from the workpiece is brought to the collet side. It may pop out and get stuck in the slot of the collet. Accordingly, when the cutting tool is separated from the collet and recombined, the chip may intervene on the inner circumferential surface of the collet, thereby decreasing the fastening precision of the cutting tool to the tool holder.
  • a separate cover for closing the open end of the collet may be provided.
  • Such a cover may shield the exposed portion of the slot, but is cumbersome because it must be separately installed and removed every time the cutting tool is attached or detached.
  • An object of the present invention is to provide a jet coolant collet capable of preventing the ingress of foreign matter into the slot and of being able to be detached from the tool holder while being able to spray coolant.
  • Jet coolant collet for realizing the above object, a hollow portion formed in the body and formed so that the inner peripheral surface is pressed with a cutting tool, and penetrates along the thickness direction of the body
  • a body unit having a slot in communication with the hollow portion;
  • a cylindrical member extending integrally from the body and blocking the end of the slot, and having a hollow portion extending from the front end thereof, a flange extending from the cylindrical member, and formed on an inner circumferential surface of the cylindrical member. It may include a cover unit, having a coolant injection groove which is open toward and in communication with the slot.
  • the coolant injection groove may have a length of 5 mm to 12 mm.
  • the coolant injection groove may have an arc-shaped cross section.
  • the flange may be formed to be in direct contact with the front end surface of the tool holder when the body is inserted into the tool holder.
  • the cover unit a closed loop type seating groove formed in the flange; And a closed loop type sealing part seated in the seating groove.
  • the removable groove formed to cross the coolant injection groove; And a blocking unit detachably installed in the detachable groove and having a sealing portion formed to block the coolant injection groove.
  • the detachable groove may be formed on the inner circumferential surface of the cylindrical member to form a closed loop along its circumferential direction, and the sealing part may have a shape corresponding to the detachable groove.
  • the coolant injection groove may be provided in plurality, and the detachable groove may be formed to communicate with the plurality of coolant injection grooves.
  • the cylindrical member is formed to block the end of the slot, it is possible to prevent the entry of foreign matter into the slot.
  • the cover unit is formed integrally with the body unit to form a single part, there is no need for a separate process for mounting and detaching the cover unit when attaching and detaching the tool holder.
  • the coolant injection groove is formed on the inner circumferential surface of the cylindrical member, it is possible to spray the coolant with only one component.
  • FIG. 1 is a perspective view of a jet coolant collet 100 according to an embodiment of the present invention.
  • FIG. 2 is a side view of the jet coolant collet 100 of FIG. 1.
  • FIG. 3 is a cross-sectional view of the jet coolant collet 100 of FIG. 1, taken along the line AA ′ of FIG. 2.
  • FIG. 4 is a front view of the jet coolant collet 100 of FIG. 1.
  • FIG. 6 is a cross-sectional view of a collet 100 for a jet coolant according to another embodiment of the present invention.
  • FIG. 7 is an operation view of the jet coolant collet 100 of FIG. 6 in a state where the sealing unit 133 is mounted.
  • FIG. 1 is a perspective view of a jet coolant collet 100 according to an embodiment of the present invention
  • Figure 2 is a side view of the jet coolant collet 100 of FIG.
  • the jet coolant collet 100 may include a body unit 110, and a cover unit 120.
  • the body unit 110 is a part inserted into the tool holder (H).
  • the body unit 110 may have a cylindrical shape as a whole.
  • the cover unit 120 may extend from the body unit 110.
  • the cover unit 120 may have a circular plate shape as a whole.
  • the jet coolant collet 100 configured as described above may be used as a 'straight collet', and generally may be used in combination with a tool holder H such as a milling chuck.
  • FIG. 3 is a cross-sectional view of the jet coolant collet 100 of FIG. 1, and is cut along the line AA ′ of FIG. 2, and
  • FIG. 4 is a front view of the jet coolant collet 100 of FIG. 1.
  • the jet coolant collet 100 may include a body unit 110 and a cover unit 120 as described above.
  • the body unit 110 may include a body 111, a hollow portion 113, and a slot 115.
  • the body 111 may be formed in a cylindrical shape.
  • the body 111 may be formed such that its outer circumferential surface 111a is compressed with the tool holder H, which will be described later with reference to FIG. 5.
  • the hollow part 113 may be formed along the longitudinal direction of the body 111.
  • the cutting tool T to be described later with reference to FIG. 5 may be inserted into the hollow part 113.
  • the cutting tool T inserted into the hollow portion 113 may be fixed to the inner circumferential surface 113a of the hollow portion 113.
  • the slot 115 may be formed along the longitudinal direction of the body 111. Specifically, the slot 115 may be formed to pass through the thickness direction of the body 111 to communicate with the hollow portion 113.
  • the cover unit 120 may include a cylindrical member 121, a flange 123, a coolant injection groove 125, a seating groove 127, and a seal 129.
  • Cylindrical member 121 may be formed integrally extending from the body (111).
  • the cylindrical member 121 may be formed to block the end 115a of the slot 115.
  • the cylindrical member 121 may include the above-described hollow portion 113 in the central region thereof, and the hollow portion 113 may have the front end portion 121a of the cylindrical member 121 so that the cutting tool T can be inserted therein. It can be formed to extend.
  • the flange 123 may extend in the radial direction of the cylindrical member 121.
  • the flange 123 may include a front portion 123a and a rear portion 123b.
  • the front portion 123a may be formed to form the same plane as the tip portion 121a of the cylindrical member 121.
  • the rear portion 123b may be formed to directly contact the front end surface Hf of the tool holder H when the body 111 is inserted into the tool holder H (see FIG. 5).
  • the coolant injection groove 125 may be formed on the inner circumferential surface 121b of the hollow part 113 formed in the cylindrical member 121.
  • the coolant injection groove 125 may be opened toward the tip portion 121a of the cylindrical member 121 and may be formed to communicate with the slot 115.
  • the coolant injection groove 125 may have a length of 5 mm to 12 mm along the length direction of the body 111.
  • a plurality of coolant injection grooves 125 may be provided on the inner circumferential surface 121b of the cylindrical member 121 along its circumferential direction.
  • the coolant injection groove 125 may have a width of 1 mm to 8 mm, and may have a semicircular or arc cross section.
  • the seating groove 127 may be formed to form a closed loop in the circumferential direction of the flange 123 at the rear portion 123b of the flange 123.
  • the mounting groove 127 may be formed in a circular shape.
  • the sealing part 129 is installed in the mounting groove 127 and may have a shape corresponding to the mounting groove 127.
  • the tool holder H may include a mounting portion Hm, a shank portion Hs, a tightening nut Hn, and a coolant channel Hc.
  • the mounting portion Hm may be formed in a hollow shape, and the shank portion Hs may extend from the mounting portion Hm.
  • the tightening nut Hn is fastened to the outer circumferential surface of the mounting portion Hm, and the coolant channel Hc may be formed through the mounting portion Hm and the shank portion Hs along the longitudinal direction thereof.
  • the jet coolant collet 100 may be inserted into the mounting portion Hm.
  • the sealing portion 129 provided on the flange 123 comes into contact with the front end surface Hf of the mounting portion Hm, whereby the front end surface of the mounting portion Hm.
  • the space between Hf and the flange 123 can be sealed.
  • the cutting tool T may be inserted into the hollow part 113, and the cutting tool T may be fixed to the jet coolant collet 100 by fastening the tightening nut Hn to the mounting part Hm. have.
  • the tightening nut Hn is fastened to press the mounting portion Hm, the inner circumferential surface of the mounting portion Hm and the outer circumferential surface 111a of the body 111 may be pressed together, and the hollow portion 113 may also be pressed. Since the inner circumferential surface 113a and the outer circumferential surface To of the cutting tool T are compressed to each other, the cutting tool T may be fixed to the body unit 110.
  • the coolant C may be injected from the shank portion Hs toward the mounting portion Hm through the coolant channel Hc.
  • the coolant C introduced into the mounting portion Hm may flow into the slot 115.
  • the outer circumferential surface 111a of the body 111 is in close contact with the inner circumferential surface of the mounting portion Hm, and the inner circumferential surface 113a of the hollow portion 113 is formed with the outer circumferential surface To of the cutting tool T.
  • the front end surface Hf of the mounting portion Hm is in close contact with the flange 123 by the sealing portion 129, and the end 115a of the slot 115 is blocked by the cylindrical member 121.
  • the coolant C introduced into the 115 may flow out only through the coolant injection groove 125 formed in communication with the slot 115.
  • the jet coolant collet 100 may perform a function of a jet coolant.
  • the coolant injection groove 125 may have a length of 5 mm to 12 mm along the length direction of the body 111 as described above. According to this configuration, the coolant C injected through the coolant injection groove 125 may travel in a direction substantially the same as the longitudinal direction of the cutting tool T along the outer circumferential surface To of the cutting tool T. Can be. As a result, a large amount of coolant C can be injected directly to the point where the machining is performed by the cutting tool T, so that even when a deep hole is drilled, chips generated from the workpiece can be quickly removed.
  • the ejection angle of the coolant (C) with respect to the central axis of the cutting tool (T) is small, so that the amount of coolant (C) diffused by the centrifugal force is minimized even when the tool holder (H) rotates at high speed. Can be.
  • the coolant injection groove 125 may have a semicircular or arc-shaped cross section as well as a relatively small width of 1 mm to 8 mm. According to this structure, even when the low pressure coolant C is injected through the coolant channel Hc, it is possible to inject the coolant C having a relatively high pressure.
  • the size and shape of the coolant injection groove 125 may be adjusted so that the coolant C having a pressure of 60 bar or more may be injected even when the coolant C having a pressure of 60 bar or less is provided.
  • the chip of the workpiece may bounce back toward the body unit 110 again.
  • the cylindrical member 121 is formed to block the end 115a of the slot 115 as described above, foreign substances such as chips may be prevented from being caught in the slot 115.
  • the cylindrical member 121 of the cover unit 120 may be integrally formed with the body 111, and the flange 123 may be integrally formed with the cylindrical member 121. Therefore, the cover unit 120 does not need to be manufactured separately. In addition, since the cover unit 120 is formed integrally with the body unit 110, it is not necessary to fasten the cover unit 120 separately when assembling with the tool holder (H) is easy to use.
  • FIG. 6 is a cross-sectional view of a jet coolant collet 100 'according to another embodiment of the present invention.
  • the jet coolant collet 100 ′ may further include a blocking unit 130.
  • the blocking unit 130 may include a detachable groove 131 and a sealing unit 133.
  • the detachable groove 131 may be formed in a circular shape along the circumferential direction of the inner circumferential surface 121b of the cylindrical member 121.
  • the removable groove 131 may be formed to communicate with the plurality of coolant injection grooves 125 while crossing the coolant injection grooves 125.
  • the sealing unit 133 may be detachably installed in the detachable groove 131.
  • the sealing unit 133 may block the coolant injection groove 125.
  • the sealing part 133 may have a shape of a circle corresponding to the detachable groove 131.
  • the detachable groove 131 is formed in communication with the plurality of coolant injection grooves 125 along the circumferential direction of the inner circumferential surface 121b of the cylindrical member 121 as described above, so that the coolant C is a detachable groove ( 131 may be injected through the coolant injection groove 125 having a relatively low hydraulic pressure while circulating along the 131. Accordingly, the coolants C injected through the plurality of coolant injection grooves 125 may be injected in a form having a uniform pressure to each other.
  • FIG. 7 is an operation diagram of the jet coolant collet 100 ′ of FIG. 6 in a state where the sealing unit 133 is mounted.
  • a cutting tool T ′ having a coolant hole Th may be inserted into and fixed to the hollow portion 113 of the body unit 110.
  • the detachable groove 131 may be configured to block the coolant injection groove 125 by mounting the sealing portion 133. According to this configuration, since the coolant C introduced into the slot 115 cannot be injected through the coolant injection groove 125, the coolant C is the coolant hole Th of the cutting tool T ′. It may be injected from the tip of the cutting tool (T ') via).
  • the general cutting tool T as in the above-described embodiment may be fastened to the hollow portion 113 of the body unit 110.
  • the jet coolant collet 100 ′ may be used like a normal collet in which the coolant C is not injected.
  • the jet coolant collet 100 detaches and seals the sealing portion 133 to cool the coolant C to the coolant hole Th of the coolant injection groove 125 or the cutting tool T'. It may be to be injected through, or may not be sprayed coolant (C). As such, the collet 100 'for the jet coolant may be utilized in various ways, and it is possible to reduce the trouble of having to separately provide a dedicated tool holder (H) according to the need of the coolant (C). have.
  • Such a jet coolant collet is not limited to the configuration and operation of the embodiments described above.
  • the above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Gripping On Spindles (AREA)

Abstract

La présente invention concerne une virole de commande de jet comprenant : une unité de corps possédant un corps principal, une section creuse qui est formée dans le corps principal et qui est formée de telle sorte que la surface circonférentielle interne de celle-ci est fixée par ajustement serré contre un outil de coupe, et une fente qui passe à travers le corps principal dans le sens de l'épaisseur de celui-ci et qui est formée pour servir de lien traversant vers la section creuse ; et une unité d'enveloppe possédant un élément cylindrique qui s'étend intégralement depuis le corps principal et qui est formée de manière à fermer l'extrémité de la fente et dans laquelle la section creuse est formée en s'étendant jusqu'à l'extrémité avant de celle-ci, une bride formée pour s'étendre depuis l'élément cylindrique, et une rainure d'injection de réfrigérant qui est formée sur la surface circonférentielle intérieure de l'élément cylindrique, s'ouvre en direction de l'extrémité avant de celle-ci et sert de lien traversant vers la fente.
PCT/KR2014/003208 2013-12-30 2014-04-14 Virole de commande de jet Ceased WO2015102163A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480071916.4A CN105873702B (zh) 2013-12-30 2014-04-14 控制喷射筒夹

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130166704A KR101522867B1 (ko) 2013-12-30 2013-12-30 제트 쿨런트용 콜렛
KR10-2013-0166704 2013-12-30

Publications (1)

Publication Number Publication Date
WO2015102163A1 true WO2015102163A1 (fr) 2015-07-09

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ID=53395465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/003208 Ceased WO2015102163A1 (fr) 2013-12-30 2014-04-14 Virole de commande de jet

Country Status (3)

Country Link
KR (1) KR101522867B1 (fr)
CN (1) CN105873702B (fr)
WO (1) WO2015102163A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11548077B2 (en) 2020-04-08 2023-01-10 Kennametal Inc. Reducing sleeve, modular system for providing a reducing sleeve assembly, and machining assembly
US12521799B2 (en) 2020-04-08 2026-01-13 Kennametal Inc. Reducing sleeve, modular system for providing a reducing sleeve assembly, and machining assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10112238B2 (en) * 2016-05-31 2018-10-30 Ching-Ting Chen Holding sleeve of a knife holder
US11045883B2 (en) * 2019-07-11 2021-06-29 Shin-Yain Industrial Co., Ltd. Collet assembly of improved stability and collet thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1199441A (ja) * 1997-07-29 1999-04-13 Mst Corporation:Kk 工具ホルダ
KR19990062393A (ko) * 1997-12-16 1999-07-26 쯔요시 코미네 공구 홀더
JP2002192441A (ja) * 2000-12-27 2002-07-10 Nikken Kosakusho Works Ltd 流体通路を備えた工具ホルダ
JP2003117767A (ja) * 2001-10-04 2003-04-23 Big Alpha Co Ltd キャップ付きコレット及びコレット用キャップ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE511565C2 (sv) * 1997-04-28 1999-10-18 Sandvik Ab Verktyg för skärande bearbetning
JP2002046014A (ja) * 2000-08-04 2002-02-12 Sumitomo Electric Ind Ltd 転削工具
IL150013A (en) * 2002-06-04 2007-06-17 Gil Hecht Rotary cutting tool
EP1529584B1 (fr) * 2003-11-06 2006-08-30 Schunk GmbH & Co. KG Spann- und Greiftechnik Manchon pour un mandrin et son procédé de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1199441A (ja) * 1997-07-29 1999-04-13 Mst Corporation:Kk 工具ホルダ
KR19990062393A (ko) * 1997-12-16 1999-07-26 쯔요시 코미네 공구 홀더
JP2002192441A (ja) * 2000-12-27 2002-07-10 Nikken Kosakusho Works Ltd 流体通路を備えた工具ホルダ
JP2003117767A (ja) * 2001-10-04 2003-04-23 Big Alpha Co Ltd キャップ付きコレット及びコレット用キャップ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11548077B2 (en) 2020-04-08 2023-01-10 Kennametal Inc. Reducing sleeve, modular system for providing a reducing sleeve assembly, and machining assembly
US12521799B2 (en) 2020-04-08 2026-01-13 Kennametal Inc. Reducing sleeve, modular system for providing a reducing sleeve assembly, and machining assembly

Also Published As

Publication number Publication date
KR101522867B1 (ko) 2015-05-26
CN105873702A (zh) 2016-08-17
CN105873702B (zh) 2018-02-23

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