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WO2008009065A1 - Attache - Google Patents

Attache Download PDF

Info

Publication number
WO2008009065A1
WO2008009065A1 PCT/AU2007/001011 AU2007001011W WO2008009065A1 WO 2008009065 A1 WO2008009065 A1 WO 2008009065A1 AU 2007001011 W AU2007001011 W AU 2007001011W WO 2008009065 A1 WO2008009065 A1 WO 2008009065A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastener
tool
release
quick
aperture
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/AU2007/001011
Other languages
English (en)
Inventor
John Robert Clark
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.)
AERONAUT AUTOMATION Pty Ltd
Original Assignee
AERONAUT AUTOMATION Pty 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
Priority claimed from AU2006903919A external-priority patent/AU2006903919A0/en
Application filed by AERONAUT AUTOMATION Pty Ltd filed Critical AERONAUT AUTOMATION Pty Ltd
Priority to AU2007276710A priority Critical patent/AU2007276710B2/en
Publication of WO2008009065A1 publication Critical patent/WO2008009065A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B3/00—Key-type connections; Keys
    • 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
    • B23B31/103—Retention by pivotal elements, e.g. catches, pawls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • 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
    • B23B2231/40—Chucks having a pivotal retention element in the form of a laterally acting cam

Definitions

  • the present invention relates to fasteners suitable for use in inhibiting movement between a tool attachment and a tool mounting shaft.
  • a particular application of the invention is in textile plotter cutter machines and although it will be convenient to hereinafter describe the invention with reference to textile cutting machines, it is to be understood that this is not to be taken as a limitation of the scope of the invention.
  • the * present invention seeks to ameliorate one or more of the abovementioned disadvantages. - 2 -
  • a quick release fastener apparatus suitable for inhibiting relative movement between a tool attachment and a tool mounting shaft
  • the quick release fastener apparatus including: a fastener body mounted in a fastener aperture for rotational movement between a release position disposed at a first selected angular position and a fastened position disposed at a second angular position, the fastener body further including a cam which includes a first lobe wherein in the fastened position the first lobe extends into a tool connecting aperture for connecting the tool attachment and tool mounting shaft together, the lobe being withdrawn from the connecting aperture when the fastener body is moved to the release position.
  • the angular displacement between the release and the fastened position is approximately 180°.
  • a recess is disposed in either the tool attachment or tool shaft so that the first lobe may abut the recess when in the fastened position.
  • the recess has a cross- section corresponding with that of the abutting portion of the lobe.
  • a fastener housing is provided in order to house the fastener aperture.
  • the fastener housing is mounted on the tool attachment.
  • the cam is integral with the fastener body.
  • the cam includes a helical engagement wall portion so that when driven, the rotation of the fastener body gradually advances an engagement portion of the helical engagement wall along a fastener body axis into the connecting aperture.
  • the lobes are disposed within the cross-section of the fastener body.
  • the fastener body includes a drive head for engagement with a driving means, and a retention means disposed at an insertion end, the cam being disposed at an intermediate region.
  • the drive head is a hexagonal socket head.
  • the retention means includes a circlip which mounts in a channel for retention of the fastener body in the fastener aperture.
  • a detent is provided to retain the fastener body in the release position.
  • the detent is a biased projection which engages with a land to retard rotation of the fastener body about a fastener body axis when in the open position.
  • a textile plotter cutter machine which includes a tool attachment and a tool mounting shaft, and ia quick release fastener suitable for inhibiting relative movement between the tool attachment and the tool mounting shaft
  • the quick release fastener including: a fastener body mounted in a fastener aperture for rotational movement between a release position disposed at a first selected angular position and a fastened position disposed at a second angular position, the fastener body further including a cam which includes a first lobe wherein in the fastened position the first lobe extends into a tool connecting aperture for connecting the tool attachment and tool mounting shaft together, the lobe being withdrawn from the connecting aperture when the fastener body is moved to the release position.
  • a plotter cutter machine which includes a quick release fastener to inhibit relative movement between a tool attachment and a tool mounting shaft.
  • a plotter cutter machine tool attachment which includes a quick release fastener for attachment to a tool mounting shaft.
  • a tool control head which is adapted to mount tools directly or indirectly thereupon, the tool control head including a tool shaft which is hollow so that control assemblies may access the tool region for additional control thereof.
  • the tool control head is used in textile operations.
  • Preferred features such as reciprocating shafts, ejectors, hydraulic fluid conduits, pneumatic tubes may be fed down the hollow tool shaft in a manner such as above described.
  • Figure 1 shows a number of views of a quick release fastener in accordance with a preferred embodiment of the present invention including: 1. (a) Side elevation 1. (b) Section of a cam portion
  • Figure 2 shows a side elevation view of a tool mounting shaft showing a recess at its end for receiving the cam
  • Figure 3 shows a number of views of a quick release fastener assembly including:
  • Figure 4 shows a variety of views of a tool control head, including: 4. (a) Front elevation view;
  • a tool control head for a textile plotter cutter machine generally indicated at 10 in Figure 4(a), the tool control head 10 including four tool assemblies 8, 9, 12, 13 mounted on respective tool shafts, 14, 16 at respective lower ends 18, 19 thereof.
  • the tool shafts 14, 16 include access means 20, so that control means (not shown) may access the tool attachments 12, 13.
  • the access means 20 are in the form of through apertures 22 from an upper end 17, 15 to lower ends 18, 19 of the tool shafts 14, 16.
  • the control means (not shown) are in the form of rotating or reciprocating tools shafts, hydraulic pipes, pneumatic tubes, coolant, and the like (not shown).
  • the tool attachments 12, 13 and tool shafts 14, 16 are fastened together by a fastening apparatus 30, in the form of a quick-release fastener 31.
  • the quick release fastener 31 includes a fastener body 32 which includes a cam 34 which is offset relative to a fastener axis 35.
  • the fastener body 32 is mounted in a fastener aperture 33 which is disposed in a fastener housing 37 associated with the tool attachment 12, 13.
  • a recess 36 is associated with the tool shaft 14, 16, the recess 36 corresponding in section to the section of the cam 34.
  • the fastener body 32 is a generally elongate shaft 35 which includes an engagement region 38 at an intermediate region 75, the engagement region 38 including the cam 34.
  • the cam 34 may be helical in shape, but in the preferred embodiment shown, the cam 34 includes lobes 41, 51 and 52. The lobe 41 does not extend beyond the outer diameter of the shaft 35.
  • the cam 34 includes a flat 45 so that, in the release position, the lobe 41 may be disposed wholly withdrawn from, or wholly adjacent the connecting aperture 61 so that the end 18 of the tool shaft 14, may be received in the connecting aperture 61 to mount the tool attachment 12 on the tool shaft end 18.
  • a detent 50 is provided so as to retain the fastener body 32 in the release position in which the cam 34 is not in the connecting aperture 61.
  • the detent 50 is in the form of a ball 51 biased towards the fastener body 32 by a biasing means in the form of a spring 53, The ball 51 retards the rotation of the fastener body 32 when it abuts a flat 57.
  • the recess 36 is in the form of a notch 37 in tool shaft 14, 16.
  • the notch 37 is an arcuate bight 55, of a similar radius to the lobe 41, to facilitate a snug fit and maximum frictional force when engaged with the internal periphery of the bight 55.
  • the tool attachment 12 is presented to the lower end 18 of the tool shaft 14 by rotating the fastener body 32 to the release position, the fastener body 32 being held in that position by the detent 50.
  • the end 18 of the tool shaft 14 passes through the connecting aperture 61 in the tool attachment 12 and the notch 37 is disposed adjacent the flat 45.
  • the fastener body 32 is then driven or rotated by a socket or wrench through an angular movement slightly less than approximately 180° until the lobe 41 gradually advances into the notch 37 and abuts the interior periphery of the notch 37. Friction holds the lobe 41 in the notch 37 and the tool 60 is held firmly and is inhibited from rotating if the shaft 14 does not rotate.
  • Angular and axial backlash is minimised because the lobe 41 has a semicircular profile which corresponds to the profile of the notch, which makes for a snug fit.
  • a high degree of accuracy with regard to the holding angle and a high holding strength is achieved.
  • the shaft 18 can exert a high degree of control over the tool 60, and the tool 60 is less prone to self-steering because of the strong frictional hold (a snug fit over a large surface area).
  • the gradually increasing radiused contour of the lobes 51 and 52 facilitate release into the release position.
  • the tool shaft 18 includes splines extending along the outer walls so that recirculating ball bearings may be used to engage with the spline to steer the tool 60 by (controlling the rotation of the shaft 14). The steering achieved by sprockets 75 and the down force applied by cylinders 70 are thereby separated.
  • the head of the fastener body 32 is turned approximately 180° back until the flat 45 is in the release position and then the tool attachment 12 drops out of the connecting aperture 61.
  • the notch 37 is disposed in the end region 18 of the tool shaft 14 and therefore the tool attachment 12 only needs to drop a few millimetres before it may be removed entirely and renovated or replaced. This enables the .tools to be mounted only a few millimetres above a cutting table.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Control Of Cutting Processes (AREA)

Abstract

L'invention concerne une attache rapide, l'attache rapide étant adaptée pour empêcher un mouvement relatif entre un outil et une tête de montage d'outil lorsqu'une partie soit de l'outil, soit de la tête de montage d'outil, est montée à l'intérieur d'une ouverture de connexion d'outil associée à l'outil ou à la tête de montage d'outil. L'attache rapide comprend un corps d'attache monté dans une ouverture d'attache pour un mouvement de rotation entre une position libérée et une position attachée. En outre, le corps d'attache comprend un élément de clavette étagée, l'élément de clavette étagée étant disposé, dans la position libérée, adjacent à l'ouverture de connexion, et, dans la position attachée, au moins une partie de l'élément de clavette étagée est disposée à l'intérieur de l'ouverture de connexion de telle sorte que, lorsqu'un outil ou une tête de montage d'outil est monté à l'intérieur de l'ouverture de connexion, la partie de l'élément de clavette étagée vient en butée contre l'outil ou la tête de montage d'outil.
PCT/AU2007/001011 2006-07-20 2007-07-20 Attache Ceased WO2008009065A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2007276710A AU2007276710B2 (en) 2006-07-20 2007-07-20 A fastener

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2006903919 2006-07-20
AU2006903919A AU2006903919A0 (en) 2006-07-20 A fastener

Publications (1)

Publication Number Publication Date
WO2008009065A1 true WO2008009065A1 (fr) 2008-01-24

Family

ID=38956441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/001011 Ceased WO2008009065A1 (fr) 2006-07-20 2007-07-20 Attache

Country Status (2)

Country Link
AU (1) AU2007276710B2 (fr)
WO (1) WO2008009065A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9098252B2 (en) 2012-06-21 2015-08-04 Hewlett-Packard Development Company, L.P. Peripheral component interconnect riser cage fastener

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695030A (en) * 1985-09-03 1987-09-22 Fischer Jay P Quick release clamp
US4981057A (en) * 1988-10-31 1991-01-01 Krupp Widia Gmbh Clamping device for connecting a tool head to a tool holder of a machine tool
US5346344A (en) * 1991-04-03 1994-09-13 APAL Fabrik fur Prazisionswerkzeuge Dr. Kress KG Cutting area
US20020063399A1 (en) * 2000-11-29 2002-05-30 Rohm Gmbh Collet chuck
US20040081521A1 (en) * 2002-10-28 2004-04-29 Erickson Robert A. Clamp pin tool holder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695030A (en) * 1985-09-03 1987-09-22 Fischer Jay P Quick release clamp
US4981057A (en) * 1988-10-31 1991-01-01 Krupp Widia Gmbh Clamping device for connecting a tool head to a tool holder of a machine tool
US5346344A (en) * 1991-04-03 1994-09-13 APAL Fabrik fur Prazisionswerkzeuge Dr. Kress KG Cutting area
US20020063399A1 (en) * 2000-11-29 2002-05-30 Rohm Gmbh Collet chuck
US20040081521A1 (en) * 2002-10-28 2004-04-29 Erickson Robert A. Clamp pin tool holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9098252B2 (en) 2012-06-21 2015-08-04 Hewlett-Packard Development Company, L.P. Peripheral component interconnect riser cage fastener

Also Published As

Publication number Publication date
AU2007276710B2 (en) 2011-06-02
AU2007276710A1 (en) 2008-01-24

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