US3919877A - Tool - Google Patents

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Publication number
US3919877A
US3919877A US413341A US41334173A US3919877A US 3919877 A US3919877 A US 3919877A US 413341 A US413341 A US 413341A US 41334173 A US41334173 A US 41334173A US 3919877 A US3919877 A US 3919877A
Authority
US
United States
Prior art keywords
piston
key
die member
head portion
frame
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.)
Expired - Lifetime
Application number
US413341A
Other languages
English (en)
Inventor
Louis A Netta
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.)
ABB Installation Products Inc
Original Assignee
Thomas and Betts Corp
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 Thomas and Betts Corp filed Critical Thomas and Betts Corp
Priority to US413341A priority Critical patent/US3919877A/en
Priority to AU74518/74A priority patent/AU466544B2/en
Priority to DE19742451779 priority patent/DE2451779A1/de
Priority to IT53859/74A priority patent/IT1023089B/it
Priority to FR7436685A priority patent/FR2249766B3/fr
Priority to SE7413871A priority patent/SE7413871L/xx
Priority to JP49127267A priority patent/JPS5074083A/ja
Priority to NL7414499A priority patent/NL7414499A/xx
Priority to BE150272A priority patent/BE821918A/xx
Application granted granted Critical
Publication of US3919877A publication Critical patent/US3919877A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure

Definitions

  • a reciprocating piston of a fluid operated tool has key means slidably engagable with preferably selectively formed grooved portions in longitudinally extending frame members flanking the piston to maintain accurate angular orientation of the piston means with respect to the frame members along its path of travel.
  • the key means also serves at least partially as a load bearing means for a die member which may be removably coupled to the head portion of the piston.
  • flanking frame members may be pivotally or otherwise movably connected to the tool frame to permit its disengagement from the key means to allow the die member to be slidably detached from the piston head portion while a portion of the key means is still cooperatively engaged to the other frame member to maintain the desired orientation of the piston with respect to the frame members.
  • FIG. 1 A first figure.
  • the invention is directed to the field of fluid operated tools and principally to piston orientation means therefor.
  • a hydraulically or pneumatically operated piston is disposed within a cylinder comprising at least part of the frame of the tool and is reciprocatingly movable towards and away from the item upon which work is to be done.
  • the piston is fabricated with an intergral head portion shaped to form the movable die member of the die set whereby upon advancement of the piston the movable die member is advanced towards the mating die member and then retracted after the work has been performed.
  • both the movable and mating die members may be arranged to accommodate a series of removable inserts each proportioned to provide a specific die contour.
  • the invention overcomes the limitations and difficulties noted above with respect to prior art devices by providing an improved fluid operated tool having removable key means cooperatively associated with the piston and frame members of such tool to align, guide, and at least partially support the piston and associated die member in a manner more efficient, reliable, verstile and economical than such prior art devices.
  • the piston comprises, in one embodiment, a reduced diameter head portion adapted to receive key means having extending shoulder portions each engaging associated grooves in flanking frame members extending parallel to the path of travel of the piston.
  • the head portion of the piston is further provided with means for releasably 2 coupling the die member to the piston in a predetermined orientation, said die member being additionally provided with extensions for engaging preferably the same grooves engaged by the shoulder portions of the key means, thus providing a dual support and guide for both the piston and die member during operation.
  • orientation and alignment of the piston with respect to the frame members is advantageously maintained by engagement of at least one of the shoulder portions of the key means with the groove of an-associated frame member.
  • One of the flanking frame members may be pivotably or otherwise displaceable from its operating position to a release position to permit the die member to be detached from the piston head portion while the remaining shoulder of the key means is engaged with the groove in the other frame member so that orientation is maintained throughout the replacement operation.
  • the key means may be coupled to the piston head portion by a split ring or the like which may be readily removed to permit convenient and rapid replacement of either the key means or the piston.
  • the piston head portion is further provided with means arranged to releasably couple the die member thereto which means may comprise a slotted shoulder providing axial restraint while permitting transverse movement of the die member for slidable release from the head portion. It is thus an object of this invention to provide an improved fluid operated tool.
  • FIG. 1 is a fragmentary front elevational view, partly cut away and partly in section, of an improved fluid operated tool constructed in accordance with the concepts of the invention.
  • FIG. 2 is a cross sectional view of the device of FIG. 1 taken along the line 22 of FIG. 1.
  • FIG. 3 is a cross sectional view of the device of FIG. 1 taken along the line 33 of FIG. 1.
  • FIG. 4 is a fragmentary perspective view of the head portion of the piston of the device of FIG. 1.
  • FIG. 5 is a persepctive view showing a keying means for an improved fluid operated tool constructed in accordance with the concepts of the invention.
  • FIG. 6 is an exploded frangmentary perspective view .of the piston head portion, keying means, and means for coupling the keying means to the piston head por- 3 tion of the device of FIG. 1.
  • FIG. 7 is a fragmentary front elevational view, partly cut away, showing an assembly of the piston head portion, keying means, and die member of the device of FIG. 1.
  • FIG. 8 is a fragmentary side elevational view, of the assembly of FIG. 7.
  • FIG. 9 is a fragmentary front elevational view, partly cut away, showing the device of FIG. 1 preparatory to the removal of the die member therefrom.
  • FIG. 10 is a top plan view of a further embodiment of a keying means for an improved fluid operated tool constructed in accordance with the concepts of the invention.
  • FIG. 1 l is a fragmentary top plan view, partly in section, showing a further embodiment of a keying means for an improved fluid operated tool constructed in accordance with the concepts of the invention.
  • FIGS. 1 through 6 there is shown an improved fluid operated tool constructed in accordance with the concepts of the invention.
  • the tool 20 comprises a frame 22 having a pair of members 24, 26 extending generally longitudinally from the frame member body 28 in generally spaced parallel relationship and flanking a piston 30 reciprocatingly movable between the members 24, 26.
  • the piston 30 is activated by fluid pressure in a manner well known in the art, such fluid pressure comprising either hydraulic or pneumatic fluid suitably valved into and out of a cylinder 32 encompassing the piston 30.
  • Attached to an upper or head portion 34 of the piston 30 is a key 36 having downturned shoulder portions 38, 38.
  • each of the shoulder portions 38, 38 are suitably dimensioned to be slidingly received within key receiving recesses 40, 40 in the members 24, 26 respectively.
  • the piston head portion 34 protrudes from the top of the piston 30 and is provided with a first flatted element 42 having a contour adapted to receive a mating aperture 44 extending transversely through the thickness of the key 36.
  • the key 36 is thus rotationally locked in a given position with respect to the longitudinal axis of the piston 30 and is secured thereto by a split ring 46 (FIG. 6) adapated to seat atop the key 36 and engage a groove 48 extending about the periphery of the flatted element 42.
  • a slotted overhanging portion 50 adapted to lockingly receive a die member 52 therein.
  • the overhanging portion 50 is designed to engage a recess 54 (FIG. 1) in the die member 52 so that the die member 52 will be locked against longitudinal displacement with respect to the piston 30 but may be removed therefrom by sliding said die member 52 tranversely either to the right or left of the piston 30.
  • the sides of the die member 52 extend into the recess 40, 40 of members 24, 26, as shown in detail in the cut away section of FIG. 1, so that the recesses 40, 40' may provide both a guide and support for the die member 52 in conjunction with the key means shoulder portions 38, 38', during the reciprocatting movement of the piston 30.
  • the overhanging portion 50 of head portion 34 is provided with a slot 56 adapted to slidably mate with a foot portion 58 of the die member 52, thus providing a self-aligning feature whereby the die member 52 will align itself with the frame member grooves 40, 40 irrespective of the alignment of the piston 30 therewith.
  • the head portion 34 thus provides a track or guide for the die member 52 which may thus slide reciprocatingly between the members 24 and 26 but is securely retained against rotation with respect thereto both by its engagement with the recesses 40, 40 and its additional engagement with the head portion 34.
  • the assembly of the key 36 to the head portion 34 of the piston 30 is shown in the exploded view of FIG. 6.
  • the key 36 is placed over the flatted element 42 so that the flatted portion of the aperture 44 of the key 36 is aligned with the mating surface of the flatted element 42 of head portion 34.
  • the retaining ring 46 is then disposed over the key 36 and engaged with the slot 48 in the flatted element 42 to securely couple the key 36 to the head portion 34; whereby the piston 30 is accurately maintained in a fixed angular orientation with respect to the shoulder portions 38, 38' of the key 36.
  • the piston 30 is thus accurately aligned in a specific angular orientation with respect to such members 24, 26, independently of the location of the die member 52 with respect thereto.
  • a D-shaped aperture such as 44 in the key 36 confines the angular orientation thereof with respect to the piston 30 to a single predetermined position. This may be modified, however, as shown for example in FIG.
  • the key may be provided with the non-symetrically formed shoulder portions 62, 62', each adapted to engage a complimentarily formed mating recess 64, 64' respectively, in the frame member extending portions, thus insuring that the key is coupled to the piston in the desired orientation.
  • the key may be provided with the non-symetrically formed shoulder portions 62, 62', each adapted to engage a complimentarily formed mating recess 64, 64' respectively, in the frame member extending portions, thus insuring that the key is coupled to the piston in the desired orientation.
  • the key may be provided with a slotted aperture 66 wherein the key may be pressed onto the flatted element 42 of the head portion 34 in a self-locking arrangement wherein a pair of inwardly turned protrusions 68, 68' adjacent the open end of the aperture 66 are adapted to lockingly engage complimentary bores or recesses (not shown) in the flatted element 42 of the head portion 34, to secure the key to the piston in the desired orientation.
  • Other means may, of course be employed to attach the key to the piston, which may include threaded fasteners or like removable coupling means.
  • a further embodiment may include one or more pins protruding upwardly from the piston 30 adapted to engage corresponding receiving apertures in the key, such pins having annular recesses for receiving a retaining ring thereabout too securely maintain the key in position atop the piston 30.
  • FIG. 9 there is illustrated a means for removing the die member 52 from the head portion 34 of the piston 30 while maintaining the desired angular alignment and orientation between the piston 30 and frame member 26.
  • the member 24 is pivotally displaced from its original position towards the left of FIG. 9 in a direction indicated by the arrow 67, the member 24 being pivoted about a pin 68 coupling the member 24 to the frame 22.
  • the shoulder 38 of key 36 has now been disengaged from the recess 40 of frame member 24, the opposite shoulder 38 of key 36 is still in engagement with the recess 40 of frame member 26 to maintain the original alignment and orientation of the piston 30.
  • the die member 52 may now be released from the head portion 34 of the piston 30 simply by sliding it to the left of FIG.
  • either or both of the members 24 or 26 may be pivotally attached to the frame 22, if necessary or desirable.
  • the die member 52 is shown attached to the head portion 34 of the piston 30 in sliding relationship, other variations including, for example, a twist lock arrangement (not shown) or threaded fasteners or the like may be similarly employed to secure the die member 52 to the head portion 34 of piston 30.
  • An upper die member 72 cooperative with die member 52 may be pivotally attached to the frame member 26, as at 74, so that the removal of the die member 52 may be facilitated by pivoting the upper die member 72 towards the right of FIG. 9 in a clockwise direction as indicated by the arrow 76.
  • the member 24 may be coupled to the frame 22 in other than the pivoting arrangement hereinabove described and may be attached thereto either by a threaded fastener (not shown) replacing the pivot pin 68 or by the employment of a slotted aperture in the frame 22 (not shown) adapted to permit the member 24 to be retracted sufficiently to permit the removal of the die member 52 from the head portion 34 of piston 30.
  • a fluid operated tool of the type having frame means, piston means reciprocatingly movable within said frame means, and a die member releasably connected to said piston means for reciprocating movement within said frame means, the improvement comprising: said frame means including first and second members extending generally parallel to the path of travel of said piston means, and having key receiving means comprising a grooved portion extending along the length of the interior of each of said first and second members; key means including opposingly disposed downturned shoulder portions each slidably engaging a respective one of said first and second member grooved portions said piston means having a head portion of reduced diameter integral therewith and protruding longitudinally from the free end thereof, said head portion having an asymmetrically formed key means engaging portion located adjacent the junction between said piston means and said head portion, said key means having an asymmetrically formed transverse aperture conforming to said key means engaging portion and within which said key means engaging portion is seated to prevent the rotation of said key means about the longitudinal axis of said piston means; said die member having a foot portion disposed generally

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Actuator (AREA)
US413341A 1973-11-06 1973-11-06 Tool Expired - Lifetime US3919877A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US413341A US3919877A (en) 1973-11-06 1973-11-06 Tool
AU74518/74A AU466544B2 (en) 1973-11-06 1974-10-21 Improved tool
DE19742451779 DE2451779A1 (de) 1973-11-06 1974-10-31 Formwerkzeug
FR7436685A FR2249766B3 (xx) 1973-11-06 1974-11-05
IT53859/74A IT1023089B (it) 1973-11-06 1974-11-05 Utensile azionato mediante un fluido
SE7413871A SE7413871L (xx) 1973-11-06 1974-11-05
JP49127267A JPS5074083A (xx) 1973-11-06 1974-11-06
NL7414499A NL7414499A (nl) 1973-11-06 1974-11-06 Gereedschap met verwisselbare bek en richtorgaan voor de juiste stand van de bek.
BE150272A BE821918A (fr) 1973-11-06 1974-11-06 Perfectionnements aux outils a commande fluidique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US413341A US3919877A (en) 1973-11-06 1973-11-06 Tool

Publications (1)

Publication Number Publication Date
US3919877A true US3919877A (en) 1975-11-18

Family

ID=23636866

Family Applications (1)

Application Number Title Priority Date Filing Date
US413341A Expired - Lifetime US3919877A (en) 1973-11-06 1973-11-06 Tool

Country Status (9)

Country Link
US (1) US3919877A (xx)
JP (1) JPS5074083A (xx)
AU (1) AU466544B2 (xx)
BE (1) BE821918A (xx)
DE (1) DE2451779A1 (xx)
FR (1) FR2249766B3 (xx)
IT (1) IT1023089B (xx)
NL (1) NL7414499A (xx)
SE (1) SE7413871L (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117711A (en) * 1977-10-17 1978-10-03 Belden Corporation Combination cutting and crimping tool
US4385514A (en) * 1981-07-08 1983-05-31 Mcinerney Spring & Wire Company Pipe assembly tool
US4528740A (en) * 1983-04-18 1985-07-16 Msw Corporation Shrink ring clamp assembly
US4615208A (en) * 1984-03-02 1986-10-07 Hailey Robert W Hydraulic press frame
US4831864A (en) * 1986-01-02 1989-05-23 Sms Hasenclever Machinenfabrik Gmbh Forging machine
US5768935A (en) * 1997-03-13 1998-06-23 Owens; Carl H. Blade crimping device
US6230542B1 (en) * 1999-06-10 2001-05-15 Gustav Klauke Gmbh Hydraulic apparatus
US6532790B2 (en) 1999-06-10 2003-03-18 Gustav Klauke Gmbh Hydraulic apparatus
US6792789B1 (en) 2003-04-03 2004-09-21 Fci Americas Technology, Inc. Hydraulic tool having removable cutting dies and crimping dies
US20050234537A1 (en) * 2004-04-16 2005-10-20 Scimed Life Systems, Inc. Stent crimper
US20050262914A1 (en) * 2004-05-27 2005-12-01 Dextra Asia Co., Ltd. Forging machine for the upsetting of deformed reinforcement bars
WO2014201107A1 (en) * 2013-06-11 2014-12-18 Eaton Corporation Anti-rotating hydraulic piston
US11684984B2 (en) * 2017-07-17 2023-06-27 Gustav Klauke Gmbh Tool for cutting a workpiece

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671835A (en) * 1900-03-30 1901-04-09 Thomas J Mctighe Hydraulic press for splicing electrical conductors.
US676292A (en) * 1900-10-05 1901-06-11 Francis H Stillman Cable-splicing tool.
US2722859A (en) * 1952-10-16 1955-11-08 Herbert C Stoltz Crimping tool with a rotatable work head
US2940497A (en) * 1956-01-18 1960-06-14 Greenlee Bros & Co Portable hydraulic press
US3008234A (en) * 1959-07-27 1961-11-14 Welsbach Corp Hydraulically actuated tool
US3031903A (en) * 1958-05-12 1962-05-01 Schloemann Ag Control of hydraulic forging presses
US3070144A (en) * 1960-02-11 1962-12-25 Amp Inc Ladder strip applicator
US3135146A (en) * 1962-06-12 1964-06-02 Western Electric Co Crimping devices
US3204445A (en) * 1963-04-16 1965-09-07 Sargent & Co Hand tool
US3326029A (en) * 1964-08-05 1967-06-20 Porter Inc H K Hydraulic press
US3709023A (en) * 1969-06-16 1973-01-09 Finzer H Kg Automatic bending and/or punching machines for producing shaped parts from wire or strip

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671835A (en) * 1900-03-30 1901-04-09 Thomas J Mctighe Hydraulic press for splicing electrical conductors.
US676292A (en) * 1900-10-05 1901-06-11 Francis H Stillman Cable-splicing tool.
US2722859A (en) * 1952-10-16 1955-11-08 Herbert C Stoltz Crimping tool with a rotatable work head
US2940497A (en) * 1956-01-18 1960-06-14 Greenlee Bros & Co Portable hydraulic press
US3031903A (en) * 1958-05-12 1962-05-01 Schloemann Ag Control of hydraulic forging presses
US3008234A (en) * 1959-07-27 1961-11-14 Welsbach Corp Hydraulically actuated tool
US3070144A (en) * 1960-02-11 1962-12-25 Amp Inc Ladder strip applicator
US3135146A (en) * 1962-06-12 1964-06-02 Western Electric Co Crimping devices
US3204445A (en) * 1963-04-16 1965-09-07 Sargent & Co Hand tool
US3326029A (en) * 1964-08-05 1967-06-20 Porter Inc H K Hydraulic press
US3709023A (en) * 1969-06-16 1973-01-09 Finzer H Kg Automatic bending and/or punching machines for producing shaped parts from wire or strip

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117711A (en) * 1977-10-17 1978-10-03 Belden Corporation Combination cutting and crimping tool
US4385514A (en) * 1981-07-08 1983-05-31 Mcinerney Spring & Wire Company Pipe assembly tool
US4528740A (en) * 1983-04-18 1985-07-16 Msw Corporation Shrink ring clamp assembly
US4615208A (en) * 1984-03-02 1986-10-07 Hailey Robert W Hydraulic press frame
US4831864A (en) * 1986-01-02 1989-05-23 Sms Hasenclever Machinenfabrik Gmbh Forging machine
US5768935A (en) * 1997-03-13 1998-06-23 Owens; Carl H. Blade crimping device
US6230542B1 (en) * 1999-06-10 2001-05-15 Gustav Klauke Gmbh Hydraulic apparatus
US6532790B2 (en) 1999-06-10 2003-03-18 Gustav Klauke Gmbh Hydraulic apparatus
US6792789B1 (en) 2003-04-03 2004-09-21 Fci Americas Technology, Inc. Hydraulic tool having removable cutting dies and crimping dies
US20050234537A1 (en) * 2004-04-16 2005-10-20 Scimed Life Systems, Inc. Stent crimper
US7143625B2 (en) * 2004-04-16 2006-12-05 Boston Scientific Scimed, Inc. Stent crimper
US20050262914A1 (en) * 2004-05-27 2005-12-01 Dextra Asia Co., Ltd. Forging machine for the upsetting of deformed reinforcement bars
US7313942B2 (en) * 2004-05-27 2008-01-01 Dextra Asia Co., Ltd. Forging machine for the upsetting of deformed reinforcement bars
WO2014201107A1 (en) * 2013-06-11 2014-12-18 Eaton Corporation Anti-rotating hydraulic piston
US11684984B2 (en) * 2017-07-17 2023-06-27 Gustav Klauke Gmbh Tool for cutting a workpiece

Also Published As

Publication number Publication date
AU7451874A (en) 1975-10-30
NL7414499A (nl) 1975-05-09
FR2249766B3 (xx) 1977-08-05
AU466544B2 (en) 1975-10-30
SE7413871L (xx) 1975-05-07
BE821918A (fr) 1975-05-06
JPS5074083A (xx) 1975-06-18
IT1023089B (it) 1978-05-10
FR2249766A1 (xx) 1975-05-30
DE2451779A1 (de) 1975-09-25

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