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WO2000056499A1 - Systeme de dechargement de microplaquette par depression - Google Patents

Systeme de dechargement de microplaquette par depression Download PDF

Info

Publication number
WO2000056499A1
WO2000056499A1 PCT/US2000/006068 US0006068W WO0056499A1 WO 2000056499 A1 WO2000056499 A1 WO 2000056499A1 US 0006068 W US0006068 W US 0006068W WO 0056499 A1 WO0056499 A1 WO 0056499A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
chips
chip
hopper
outlet
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/US2000/006068
Other languages
English (en)
Inventor
Cameron F. Anders
Peter F. Woerner
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.)
Gleason Works
Original Assignee
Gleason Works
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 Gleason Works filed Critical Gleason Works
Priority to AU37313/00A priority Critical patent/AU3731300A/en
Publication of WO2000056499A1 publication Critical patent/WO2000056499A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • 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
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0057—Devices for removing chips outside the working area
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to an apparatus for conveying chips away from the machining area of a machine tool, such as a machine for producing bevel and hypoid gears, by the application of a vacuum in which the apparatus includes means to discharge collected chips by controlling the vacuum.
  • One way to remove dry chips is to permit the hot chips to slide by gravity toward a chip conveyor built into the base of a hobbing machine.
  • a generally circular-shaped shroud encloses an engaged tool and workpiece such that chips emanating from the tool-workpiece interface are confined to the shroud and are directed into an outlet where they are conveyed away from the machine tool.
  • a problem that exists in particle separation means of this type is that opening the lower door while air is moving through the chamber (i.e. while vacuum is being applied to the machine tool chip-confining shroud), causes significant disruption of the chips lying in the bottom of the chamber, since air will be drawn in through the lower door.
  • the problem may be avoided by stopping the motor driving the fan that creates the vacuum, however, this is a time consuming process as one must wait for the fan to stop. After the particles are emptied through the bottom door, additional time must also be expended while the motor and fan reach operating speeds again. Furthermore, during this discharging process, operation of the machine tool must also be suspended.
  • the present invention is directed to a vacuum chip removal apparatus wherein a damper valve is included in combination with chip hopper doors whereby the damper valve operates to close off airflow through the apparatus, thus eliminating the vacuum.
  • the chip hopper doors are opened to discharge chips from the apparatus. With the vacuum eliminated, outside air will not rush in through the hopper doors to disrupt chips in the hopper and potentially harm components of the vacuum apparatus.
  • the hopper doors are closed and the damper is then opened to restore vacuum to the entire chip removal apparatus.
  • Figure 1 illustrates a cross-section of the inventive vacuum chip removal system when viewed from a side.
  • Figure 2 illustrates a cross-section of the inventive vacuum chip removal system when viewed from an end.
  • the present invention may be in communication with any machine that produces dry chips as a result of a machining process. As discussed previously, the present invention is contemplated as being in communication with the outlet of a chip-confining shroud of a bevel and hypoid gear manufacturing machine. However, it will become apparent that the present invention may be placed in communication with the source of dry chips emanating from any machine tool.
  • FIG. 1 illustrates a cross-section of the inventive vacuum chip removal apparatus 2 when viewed from the side.
  • the vacuum apparatus 2 includes an inlet 4 (for example, six inches in diameter) where chip-entrained air from a machine tool enters the apparatus 2.
  • inlet 4 for example, six inches in diameter
  • the air and chips Upon passing through inlet 4, the air and chips encounter a enlarged vacuum path region or chamber 6 having an area greater, preferably on the order of ten times, than the area of the inlet 4.
  • the increase in area decreases the velocity of the air stream as well as the suspension of the incoming chips.
  • the reduced-velocity chips separate from the air stream and fall into the chip hopper 8.
  • the air stream then continues through the filters 10, (preferably four in number, with each filter having a filter area of about 226 ft. 2 ), which trap any fine metallic particles still suspended in the stream.
  • the air stream then continues past open damper 12 (dashed lines), through the fan 14, along a tortuous path 16 around sound dampening material
  • air path damper 12 is closed (solid line) across the air stream, either manually or preferably power actuated by means such as air pressure, hydraulics or electricity. From the standpoint of cost, an air cylinder (not shown) is preferred.
  • the power actuated means may be manually activated or, preferably, may be controlled by a computer. Since the fan 14 has no air to move, it will freewheel and the current will drop. The pressure in the rest of the apparatus 2 will rise to ambient. After a short delay, closed hopper doors
  • control of hopper doors 22 may be manual but are preferably power actuated by means such as air pressure, hydraulics or electricity. Again, from the standpoint of cost, an air cylinder is a preferable actuator.
  • the power actuated means may be manually activated or, preferably, may be controlled by a computer. Most preferably, opening and closing control of both the damper 12 and hopper doors 22 are computer controlled such that their respective movements occur sequentially.
  • Control of the damper 12 and doors 22 may originate from the machine tool computer control and may be programmed to discharge accumulated chips after a predetermined number of workpieces have been machined. Discharging of chips can occur during unloading and loading of workpieces so that little or no machining time is lost due to discharging of chips.
  • filter cleaning means 26 is triggered manually, or preferably by the machine computer control, to backflow filters 12 with bursts of pressurized air. This blows the fine particles from the filter surface and into the hopper 24. While one pair of filters may be cleaned at a time, preferably, only one filter is cleaned at a time.
  • the doors 22 to unload chips could not be opened without upsetting the chips and air stream. Opening the doors 22 with the vacuum still engaged, while being extremely difficult, would disrupt the air stream, causing the chips to "fly" erratically out of the hopper 8 instead of dropping into the movable hopper 24. Also, airborne pollutants could be pulled into the filters 10.
  • the negative pressure i.e. vacuum
  • the chamber pressure quickly equalizes and the doors 22 can be opened and the accumulated chips can be easily and quickly dropped into movable hopper 24. The effect on machine cycle time allows the vacuum chip removal system to easily keep time with the cutting process.

Landscapes

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

Abstract

Cette invention a trait à un appareil (2) permettant de décharger des microplaquettes, lequel appareil comporte un clapet à air (12) associé avec les portes (22) d'un magasin à microplaquettes. Ce clapet à air entre en fonctionnement pour enfermer de l'air dans l'appareil ce qui élimine le vide et ce, avant que ne s'ouvrent les portes du magasin et que les microplaquettes n'en sortent. Du fait de l'élimination du vide, l'air extérieur ne peut pas s'engouffrer par les portes du magasin (8), y bousculer les microplaquettes et, éventuellement, endommager des composants de l'appareil à dépression. Une fois le magasin (8) vidé des microplaquettes, les portes (22) se ferment et le clapet (12) s'ouvre afin que le vide se fasse dans l'ensemble de l'appareil de déchargement de microplaquettes
PCT/US2000/006068 1999-03-23 2000-03-08 Systeme de dechargement de microplaquette par depression Ceased WO2000056499A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37313/00A AU3731300A (en) 1999-03-23 2000-03-08 Vacuum chip removal system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12557499P 1999-03-23 1999-03-23
US60/125,574 1999-03-23

Publications (1)

Publication Number Publication Date
WO2000056499A1 true WO2000056499A1 (fr) 2000-09-28

Family

ID=22420376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/006068 Ceased WO2000056499A1 (fr) 1999-03-23 2000-03-08 Systeme de dechargement de microplaquette par depression

Country Status (2)

Country Link
AU (1) AU3731300A (fr)
WO (1) WO2000056499A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013035085A (ja) * 2011-08-04 2013-02-21 Makita Corp 電動工具用集塵装置及び電動工具
US20180085873A1 (en) * 2016-09-27 2018-03-29 Black & Decker Inc. Dust extractor with flat back
JP2018126801A (ja) * 2017-02-06 2018-08-16 キャタピラー エス エー アール エル 蓋部材開閉装置
CN116851815A (zh) * 2023-09-01 2023-10-10 福建汇华集团东南汽车缸套有限公司 一种铣床
US12296290B2 (en) 2021-04-21 2025-05-13 Donaldson Company, Inc. Filter housing, seal arrangement, and method of sealing a filter housing
US12397252B2 (en) 2021-04-21 2025-08-26 Donaldson Company, Inc. Filter housing with drop out chamber and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318643A (en) * 1979-12-28 1982-03-09 Ab Svenska Flaktfabriken Apparatus for conveying waste materials by suction
EP0422740A2 (fr) * 1989-10-09 1991-04-17 Hendrik Wulbrecht Filtre avec chambre pour réduire la vitesse du gaz et dispositif pour nettoyer le tissu filtrant
EP0520542A1 (fr) * 1991-06-25 1992-12-30 Nordfab Plant 1 A/S Clapet pour installation de filtration d'air
US5405421A (en) * 1993-09-22 1995-04-11 Swisher, Jr.; George W. Gas stream filtering system using filtered gas for reverse flow cleaning
DE29710413U1 (de) * 1997-06-14 1997-10-02 AL-KO Kober AG, 89359 Kötz Absaugvorrichtung
EP0841095A2 (fr) * 1996-11-12 1998-05-13 Doryokuro Kakunenryo Kaihatsu Jigyodan Collecteur de poussière à cyclone
DE29804988U1 (de) * 1998-03-19 1998-07-09 AL-KO Kober AG, 89359 Kötz Absauggerät

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318643A (en) * 1979-12-28 1982-03-09 Ab Svenska Flaktfabriken Apparatus for conveying waste materials by suction
EP0422740A2 (fr) * 1989-10-09 1991-04-17 Hendrik Wulbrecht Filtre avec chambre pour réduire la vitesse du gaz et dispositif pour nettoyer le tissu filtrant
EP0520542A1 (fr) * 1991-06-25 1992-12-30 Nordfab Plant 1 A/S Clapet pour installation de filtration d'air
US5405421A (en) * 1993-09-22 1995-04-11 Swisher, Jr.; George W. Gas stream filtering system using filtered gas for reverse flow cleaning
EP0841095A2 (fr) * 1996-11-12 1998-05-13 Doryokuro Kakunenryo Kaihatsu Jigyodan Collecteur de poussière à cyclone
DE29710413U1 (de) * 1997-06-14 1997-10-02 AL-KO Kober AG, 89359 Kötz Absaugvorrichtung
DE29804988U1 (de) * 1998-03-19 1998-07-09 AL-KO Kober AG, 89359 Kötz Absauggerät

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013035085A (ja) * 2011-08-04 2013-02-21 Makita Corp 電動工具用集塵装置及び電動工具
US20180085873A1 (en) * 2016-09-27 2018-03-29 Black & Decker Inc. Dust extractor with flat back
US11904424B2 (en) * 2016-09-27 2024-02-20 Black & Decker, Inc. Dust extractor with flat back
US20240227103A1 (en) * 2016-09-27 2024-07-11 Black & Decker, Inc. Dust extractor with flat back
JP2018126801A (ja) * 2017-02-06 2018-08-16 キャタピラー エス エー アール エル 蓋部材開閉装置
US12296290B2 (en) 2021-04-21 2025-05-13 Donaldson Company, Inc. Filter housing, seal arrangement, and method of sealing a filter housing
US12397252B2 (en) 2021-04-21 2025-08-26 Donaldson Company, Inc. Filter housing with drop out chamber and methods
CN116851815A (zh) * 2023-09-01 2023-10-10 福建汇华集团东南汽车缸套有限公司 一种铣床
CN116851815B (zh) * 2023-09-01 2023-11-28 福建汇华集团东南汽车缸套有限公司 一种铣床

Also Published As

Publication number Publication date
AU3731300A (en) 2000-10-09

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