WO2005033539A1 - Procede d'assemblage pour ensemble disque d'embrayage sans dechets - Google Patents

Procede d'assemblage pour ensemble disque d'embrayage sans dechets Download PDF

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Publication number
WO2005033539A1
WO2005033539A1 PCT/US2004/031104 US2004031104W WO2005033539A1 WO 2005033539 A1 WO2005033539 A1 WO 2005033539A1 US 2004031104 W US2004031104 W US 2004031104W WO 2005033539 A1 WO2005033539 A1 WO 2005033539A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
segments
barrel
segmented tooling
further including
Prior art date
Application number
PCT/US2004/031104
Other languages
English (en)
Inventor
Paul D. Terpstra
Original Assignee
Gilman Engineering & Manufacturing Co. Llc
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 US10/668,821 external-priority patent/US20050060863A1/en
Priority claimed from US10/672,196 external-priority patent/US20050066507A1/en
Priority claimed from US10/676,513 external-priority patent/US20050071976A1/en
Application filed by Gilman Engineering & Manufacturing Co. Llc filed Critical Gilman Engineering & Manufacturing Co. Llc
Publication of WO2005033539A1 publication Critical patent/WO2005033539A1/fr

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0491—Tools, machines, processes
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly

Definitions

  • the present invention relates to the assembly of the type of clutch plate referred to as "scrapless”.
  • Prior art clutch plates use a flat ring of a fabric-like clutch material bonded to one or both sides of a metal ring.
  • This metal ring has a spline on its inside diameter to transfer the torque placed on the clutch.
  • the ring of clutch material is cut from a strip of the material, leaving a certain amount of scrap to be disposed of.
  • the "scrapless" type of clutch uses trapezoidal shaped segments placed side-by-side to form a circular interrupted ring of the material.
  • the trapezoidal segments are placed in a nest and then the steel ring is placed on top of the segments.
  • the segments are then bonded to one side of the steel ring by means of pressure and heat.
  • the ring and segments are then removed from the assembly nest, a second set of segments are placed in the nest.
  • the ring must then be inverted and placed again on top of the segments and the bonding process repeated.
  • the segments are placed in a rotatable circular fixture to form the required circular shape.
  • the complete set of segments is then transferred to a rotary dial which transfers the segments to a second station where the steel ring is placed on top of the segments.
  • the segments and steel ring are then transferred by the indexing dial to the bonding station where heat and pressure are applied to the assembly.
  • the one-sided assemblies are then removed from the machine and reloaded in to the machine in an inverted orientation at the steel ring load station. At this station the one-sided assembly is placed over a second set of segments and returned again to the bonding station.
  • the first set of segments and steel ring can be placed into the assembly fixture as described above and a small amount of adhesive placed on the topside of the steel ring. It may be necessary to heat this assembly to a temperature where the adhesive becomes "tacky" at this point. The second set of segments in then placed on top of the steel ring and the assembly is transferred into the bonding station.
  • a disadvantage of the prior art process is that many segments are required to assemble each clutch plate.
  • very low cycle times are required for each segment placement in order to achieve a reasonable assembly rate for the complete assembly. For example, if 32 segments are required on each side of each clutch plate, a total of 64 segment placements are required for each clutch plate.
  • 1 2,800 segments In order to process a very modest 200 clutch plates per hour, 1 2,800 segments must be placed into nests every hour giving a very short 0.28 seconds for each placement operation. This speed is attainable, but creates many challenges in the areas of machine troubleshooting, machine maintenance, and robustness of machine longevity, for example.
  • Another disadvantage of the prior art is the removal and reinsertion of the one-sided assembly in order to produce a final two-sided assembly. [0007] What would therefore be desirable would be a method and system to assemble clutch plate assemblies in a more efficient and robust manner.
  • a method and system in accordance with the principals of the present invention assembles clutch plate assemblies in a more efficient and robust manner.
  • a method and system in accordance with the principals of the present invention provides for a segmented tooling assembly that can be both linear and circular.
  • Figure 1 depicts a segmented clutch material.
  • Figure 2 depicts a segmented tooling assembly.
  • Figure 3 depicts a clutch plate assembly system.
  • Figure 4 depicts an alternative clutch plate assembly system.
  • segmented clutch material 1 0 is seen.
  • the segmented clutch material 10 includes a plurality of segments 1 2 placed side- by-side to form a circular ring of material 1 4.
  • the segments 1 2 are preferably trapezoidal shaped.
  • the assembly process of the prior art calls for placing a single segment into one of a series of nest machined into a rotating ring. After each segment is placed (or pushed) into its nest the ring of nests is rotated so that the next segment may be placed into a nest. This is the process that results in many segments being required to assemble each clutch plate thus requiring very low cycle times for each segment placement in order to achieve a reasonable assembly rate for the complete assembly.
  • the segmented tooling assembly 1 9 includes a plurality segments tools 21 .
  • Each of the segment tools 21 is joined at a pivot point 25 that comprises a pin assembly 31 .
  • the clutch assembly includes a track that has both a straight portion and a circular portion for the segment to travel. By driving the segments from the straight section to the circular section the configuration is changed.
  • the clutch assembly includes a barrel to which one end of the segmented tooling assembly is attached, the barrel rotates to wrap the segmented tooling assembly around the barrel in a circular fashion.
  • the clutch assembly includes a barrel to which the center of the segmented tooling assembly is attached, and two arms or links to which the two ends of the segmented tooling assembly are attached to wrap and unwrap the segmented tooling assembly around the barrel.
  • a pick-up head assembly is provided.
  • the pick-up head assembly includes a pick-up device on each segment.
  • the pick-up device comprises a vacuum cup.
  • the pick-up head assembly is segmented in such a way that it can be configured in a straight line to pick up the required number of segments and then configured in a circle to place the segments in a circular configuration.
  • FIG. 3 A complete assembly process is depicted in Figure 3. Two parallel strips of friction material 39 are fed into an assembly device 40 and cut into alternating left-hand, right-hand trapezoids in a cut and feed area 41 , using known practices. The segments are fed in straight lines after being cut to a pick-up position 43. The segments are picked up using the pick-up head assembly described above.
  • a tooling head 42 is mounted to a linear actuator, preferably a linear servomotor 44, which then transfers the tooling head 42 to a bonding press 49.
  • the tooling head 42 deposits the rejected segments into a reject chute 42.
  • the segments are placed into an assembly nest 51 .
  • the tooling head 42 changes from the linear configuration to the circular configuration during this transfer.
  • the tooling head 42 While the tooling head 42 is still in the circular configuration, the tooling head 42 is transferred to a position where it can pick up a metal ring 54 in the load metal ring area 47 using the same vacuum head used for the segments. The metal ring 54 is then transferred into the bonding press 49 and placed on top of the segments.
  • the tooling head 42 now returns to the linear configuration and the top set of segments is picked up and placed on top of the metal ring 54.
  • the friction material has an adhesive on one side thus requiring one track of segments that is adhesive side up which is placed below the metal ring and a second track of segments that is adhesive side down to be placed on top of the steel ring.
  • the adhesive may be on the steel ring in which case only one track is needed. In order to avoid movement of the upper segments it may be necessary to used the heating apparatus to heat the assembly to the point that the adhesive becomes "tacky" before the tooling head is removed.
  • the tooling head 42 is removed from the bonding press 49 the appropriate heat and pressure is applied to bond the assembly together.
  • the tooling head 42 will remove the complete assembly and unload it, preferably to the same conveyor system that brought the steel ring 54 into the machine.
  • the preferred embodiment includes a second linear actuator, preferably a linear servomotor 1 44, and a second tooling head 1 42 that will load the opposite hand segments. For example, if the first tooling head 42 loads left- hand segments the second tooling head 1 42 would load right-hand segments. The two tooling heads 42, 1 42 would work in parallel but out of sequence in order to avoid collisions between them .
  • each tooling head 42 is equipped with a secondary tooling, which can pick up a completed friction plate assembly.
  • the bonding press stations 49 are rotated ninety degrees so that the tooling head 42 may pass completely through the bonding press station 49 in order to reach an unload conveyor 57.
  • the tooling head 42 picks up the next set of segments while the curing process is being completed. Once the curing process is completed, the completed assembly is picked up and dropped onto an unload conveyor 57 and then the new segments are placed into the bonding press station 49. The rest of the assembly process is unchanged with the exception that reject assemblies are placed on the unload conveyor 57 instead of into a reject chute. The unload conveyor 57 will run in the reverse direction and dump the reject components into a bin.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

La présente invention concerne l'assemblage d'un type de disque d'embrayage dit 'sans déchets'. Selon les principes de la présente invention, un procédé et un système permettent d'assembler des ensembles disques d'embrayage de manière plus efficace et robuste. Ce procédé et ce système font appel à un ensemble outillage segmenté pouvant être linéaire et circulaire. Le procédé consiste à placer une pluralité de segments côte à côte, à sélectionner un nombre requis de segments dans une ligne droite et à reconfigurer les segments selon une configuration circulaire.
PCT/US2004/031104 2003-09-23 2004-09-22 Procede d'assemblage pour ensemble disque d'embrayage sans dechets WO2005033539A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US10/668,821 US20050060863A1 (en) 2003-09-23 2003-09-23 Assembly process for scrapless clutch plate assembly
US10/668,821 2003-09-23
US10/672,196 US20050066507A1 (en) 2003-09-23 2003-09-26 Assembly process for scrapless clutch plate assembly
US10/672,196 2003-09-26
US10/676,513 2003-10-01
US10/676,513 US20050071976A1 (en) 2003-09-23 2003-10-01 Assembly process for scrapless clutch plate assmebly

Publications (1)

Publication Number Publication Date
WO2005033539A1 true WO2005033539A1 (fr) 2005-04-14

Family

ID=34426929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/031104 WO2005033539A1 (fr) 2003-09-23 2004-09-22 Procede d'assemblage pour ensemble disque d'embrayage sans dechets

Country Status (1)

Country Link
WO (1) WO2005033539A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180389A2 (fr) * 1984-10-26 1986-05-07 Brake And Clutch Industries Australia Pty. Ltd. Eléments de friction pour disques d'embrayage et similaires
US5404997A (en) * 1991-12-05 1995-04-11 Johann A. Krause Machinenfabrik Article transporting apparatus including interconnected chain part provided with roll bodies
EP0878636A2 (fr) * 1997-05-07 1998-11-18 Borg-Warner Automotive, Inc. Procede de realisation d'un disque central comprenant plusieurs segments en materiau de frottement
US6203649B1 (en) * 1995-07-25 2001-03-20 Miba Frictec Gmbh & Co. Kg. Method of manufacturing a flat friction ring
US6409006B1 (en) * 1999-06-22 2002-06-25 Nsk-Warner K.K. Friction plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180389A2 (fr) * 1984-10-26 1986-05-07 Brake And Clutch Industries Australia Pty. Ltd. Eléments de friction pour disques d'embrayage et similaires
US5404997A (en) * 1991-12-05 1995-04-11 Johann A. Krause Machinenfabrik Article transporting apparatus including interconnected chain part provided with roll bodies
US6203649B1 (en) * 1995-07-25 2001-03-20 Miba Frictec Gmbh & Co. Kg. Method of manufacturing a flat friction ring
EP0878636A2 (fr) * 1997-05-07 1998-11-18 Borg-Warner Automotive, Inc. Procede de realisation d'un disque central comprenant plusieurs segments en materiau de frottement
US6409006B1 (en) * 1999-06-22 2002-06-25 Nsk-Warner K.K. Friction plate

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