US3618931A - Cam wedge power clamp - Google Patents

Cam wedge power clamp Download PDF

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Publication number
US3618931A
US3618931A US3853A US3618931DA US3618931A US 3618931 A US3618931 A US 3618931A US 3853 A US3853 A US 3853A US 3618931D A US3618931D A US 3618931DA US 3618931 A US3618931 A US 3618931A
Authority
US
United States
Prior art keywords
bore
pivot
body members
opposed
pair
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
US3853A
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English (en)
Inventor
Leland F Blatt
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.)
ISI MANUFACTURING Inc A MI CORP
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3618931A publication Critical patent/US3618931A/en
Anticipated expiration legal-status Critical
Assigned to ISI MANUFACTURING, INC., A MI CORP. reassignment ISI MANUFACTURING, INC., A MI CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BLATT, LELAND D. AND BLATT, ELAINE E., TRUSTEES OF THE L.F BLATT U/TA APRIL 12, 1977
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • B25B5/087—Arrangements for positively actuating jaws using cams actuated by a hydraulic or pneumatic piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive

Definitions

  • This invention relates to a cylinder-operated power clamp having a body section comprising two identical parts which enables the clamp to be simply and economically manufactured.
  • the Prior Art Various power clamps are known in the art.
  • the clamps in general have a cast body section used in securing the clamp arm. These body sections are in general one piece.
  • FIG. 1 is a plan view of the power clamp of this invention
  • FIG. 2 is a side elevational view of the clamp of FIG. 1;
  • FIG. 3 is a sectional view in the direction of arrows 3-3 FIG. 2;
  • FIG. 4 is a side elevational view of a body member forming a part of the power clamp of this invention.
  • FIG. 5 is a side elevational view of an alternative embodiment of the clamp of the invention, with parts shown in phantom.
  • the power clamp of this invention comprises a body 12 which comprises two identical members 14 and 16 which abut each other on a common side.
  • Each member 14 or 16 comprises a base plate 18 having a vertically extending rib 20 at one end, and another vertically extending rib 22 at an intermediate location.
  • a horizontally extending rib 24 extends the length of the base plate 18 between the vertically extending ribs 20 and 22, and also along the rest of the plate.
  • the base plate 18 has bores 26 in the top and bottom in the included areas defined by the ribs 20, 22 and 24 and the horizontally extending rib 24 has vertical bores 28 in it through that section limited by the ribs 20 and 22.
  • the bores 26 and 28 are means by which the body 12 can be attached to a support, i.e., screws or bolts can be inserted through the bores 26 or 28 into a support structure, not shown.
  • a support i.e., screws or bolts
  • the bores 26 and 28 are means by which the body 12 can be attached to a support, i.e., screws or bolts can be inserted through the bores 26 or 28 into a support structure, not shown.
  • the rib 24 has opposed arcuate recesses 32 adjacent the bores 30.
  • the inward side of the base plate 18 is offset from a point coinciding with the rib 22, on to the right end of the plate 18, as seen in FIG. 1, forming a recess 34.
  • the inner face of the plate 18 defines a guide slot 36.
  • the guide slot 36 merges into a semicylindrical longitudinal bore 38 as the rear of the plate 18 is approached.
  • the opposed plates 18 form a longitudinal bore from the semicylindrical bores 38 when they abut each other.
  • a power cylinder 40 is secured to one end of the body by means of bolts which extend through the ribs 20. Thus, each body member 14 and 16 is fastened to the power cylinder 40,
  • the power cylinder 40 may be either a hydraulically or pneumatically operated piston or solenoid.
  • a clamp arm 44 having a pivot bore 45 is pivotally mounted on body 12 by pivot bolt 46.
  • Clamp arm 44 is illustrated without any particular fixture at its upper end portion, it being understood that the particular fixture used in conjunction with this assembly does not form a part of this invention.
  • a roller cam 48 rides in a follower slot 50 formed in the clamp arm 44.
  • the roller cam 48 is carried by an axle 52 secured to the opposed arms ofa clevis 54.
  • Clevis 54 is in turn rigidly connected to end of piston rod 56, and is mounted for reciprocating movement within the guide slots 36 formed in the opposed inner faces of the base plates 18 of body 12.
  • a pair of bronze elongated blocks 58 for the axle 52 are slidably mounted at the outer ends of axle 52.
  • the guide blocks 58 are seated in the slots 36 and provide smooth and easy reciprocating of clevis 54in body 12.
  • actuation of the power cylinder 40 upon a predetermined signal causes leftward movement of piston rod 56 and clevis 54 from the position shown in the figures. This in turn causes roller cam 48 to move toward the left end of follower slot 50.
  • the follower slot 50 is inclined relative to the axis of reciprocation of the clamp arm 44. Because of the inclination of slot 50 with respect to the axis of reciprocation, clamp arm 44 is forced to pivot clockwise about bolt 46, as viewed in FIG. 2. A subsequent actuation of power cylinder 40 causes the process to be repeated in the reverse direction, with clamp arm 44 pivoting counterclockwise about bolt 46 until it is in the position shown in the figures.
  • Clamp arm 44 is dimensioned relative to the recesses between the opposing portions of body members 14 and 16 to provide substantially no space between the side faces of the arm and the inner opposed faces of the body members, so as to eliminate the possibility of foreign matter and debris entering and fouling the mechanism. Furthermore, the positioning of the roller cam between the clevis legs and the positioning of the guide blocks outside the clevis legs provides an extremely rigid assembly.
  • clamp arm 44 While as shown in the figures the clamp arm 44 is pivotable from a horizontal to an upwardly vertical position, it can also be pivoted from a horizontal to a downwardly vertical position. This is accomplished by simply reversing the arm and pivoting it about the lower of the vertically aligned bores 30.
  • the two members 14 and 16 are interchangeable and they also allow a clamp arm to be pivoted from a horizontal to an upwardly vertical direction or from a horizontal to a lower vertical direction without modification of the body component.
  • the clamp arm 44 is pivotably connected at the base thereof to the clevis 54 by means of the axle 52 extending through the clevis 54 and pivot bore 45 of the clamping arm 44.
  • a pivot bolt 46 extends between the lower orifices 30 and through the follower slot 50 of the clamp arm 44.
  • a cam roller 60 is confined within the follower slot 50.
  • a clamp comprising a body section comprising a pair of reversibly interchangeable substantially identical abutting body members, each of which has a pair of vertically aligned pivot holes for pivotably mounting a clamping arm between opposed body members, said pivot holes of opposed body members being axially aligned, said body members defining a longitudinal bore, there being formed upon the interior of said body members a pair of enclosed inwardly opening body groove tracks communicating with said bore, means for mounting said body members on a support structure, a clevis mounted for reciprocating motion in said bore and having spaced legs, means for reciprocating said clevis, an axle trans-- versely connecting said legs and provided with guide blocks on the outer ends thereof slidable in said body groove tracks, a clamping arm having a pivot bore and a follower slot offset and inclined from the axis of said longitudinal bore, mounted for pivotal movement between opposed portions of the body, said axle being confined within said slot or said pivot bore, and, wherein, said axle extends through said pivot bore, a pin extends through

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Machine Tool Units (AREA)
US3853A 1970-01-19 1970-01-19 Cam wedge power clamp Expired - Lifetime US3618931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US385370A 1970-01-19 1970-01-19

Publications (1)

Publication Number Publication Date
US3618931A true US3618931A (en) 1971-11-09

Family

ID=21707909

Family Applications (1)

Application Number Title Priority Date Filing Date
US3853A Expired - Lifetime US3618931A (en) 1970-01-19 1970-01-19 Cam wedge power clamp

Country Status (4)

Country Link
US (1) US3618931A (enrdf_load_stackoverflow)
DE (1) DE2103482A1 (enrdf_load_stackoverflow)
FR (1) FR2075670A5 (enrdf_load_stackoverflow)
GB (1) GB1280435A (enrdf_load_stackoverflow)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724837A (en) * 1970-09-02 1973-04-03 Dover Corp Retracting clamp
US4496138A (en) * 1982-03-26 1985-01-29 Blatt Leland F Power operated clamp
USRE31991E (en) * 1979-05-17 1985-09-24 Single guide rod actuating unit
US4570914A (en) * 1982-03-26 1986-02-18 Blatt Leland F Power operated clamp
US4905973A (en) * 1989-01-11 1990-03-06 Blatt John A Power operated clamp with externally mounted adjustable clamp arm
US5118088A (en) * 1990-04-30 1992-06-02 Btm Corporation Power clamp
US5165670A (en) * 1991-10-16 1992-11-24 Btm Corporation Retracting power clamp
US5171001A (en) * 1987-05-27 1992-12-15 Btm Corporation Sealed power clamp
EP0607410A4 (en) * 1992-08-07 1995-04-19 United Technologies Automotive HOLDING DEVICE TO BE OPERATED BY SLIDING.
US5575462A (en) * 1994-08-17 1996-11-19 Blatt; John A. Rotary clamp for a linear actuator
US5634629A (en) * 1994-12-22 1997-06-03 Isi Norgren Inc. Rotary clamp having a common plane mounting arrangement
US5676357A (en) * 1995-11-30 1997-10-14 Aladdin Engineering & Manufacturing, Inc. Clamp including resilient internal link
US5687961A (en) * 1995-11-30 1997-11-18 Aladdin Engineering & Manufacturing, Inc. Fluid operated clamp including integral frame and slide member support
US5853211A (en) * 1997-01-10 1998-12-29 Btm Corporation Universal gripper
US5871250A (en) * 1997-03-31 1999-02-16 Btm Corporation Sealed straight line gripper
US5884903A (en) * 1995-10-30 1999-03-23 Btm Corporation Powered clamp and gauging apparatus
US6059277A (en) * 1998-05-05 2000-05-09 Btm Corporation Retracting power clamp
US6115898A (en) * 1995-06-06 2000-09-12 Btm Corporation Force multiplying apparatus for clamping a workpiece and forming a joint therein
US6290210B1 (en) 1999-06-01 2001-09-18 Aladdin Engineering & Manufacturing Clamping and lifting mechanism
US6412845B1 (en) 2000-07-07 2002-07-02 Btm Corporation Sealed gripper
US6450082B1 (en) 2000-12-18 2002-09-17 Btm Corporation Shot pin
US6634630B2 (en) 1999-06-01 2003-10-21 Aladdin Engineering & Manufacturing Clamping and lifting mechanism
FR2863190A1 (fr) * 2003-12-04 2005-06-10 Christophe Boiteux Dispositif de serrage precis a actionnement rapide
US7448607B2 (en) 2004-12-15 2008-11-11 Phd, Inc. Pin clamp assembly
US20080287046A1 (en) * 2004-07-30 2008-11-20 Pierre Tschampion Device for Clamping a Tool Insert in a Grinding Machine
US7467788B2 (en) 2004-04-02 2008-12-23 Phd, Inc. Pin clamp
US7516948B2 (en) 2004-04-02 2009-04-14 Phd, Inc. Pin clamp accessories
US7815176B2 (en) 2003-09-11 2010-10-19 Phd, Inc. Lock mechanism for pin clamp assembly
US8376336B2 (en) 2008-06-18 2013-02-19 Phd, Inc. Strip off pin clamp
US8413970B2 (en) 2007-06-19 2013-04-09 Phd, Inc. Pin clamp assembly
US8459626B2 (en) 2010-05-28 2013-06-11 Btm Corporation Pin clamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540021B1 (fr) * 1983-01-27 1986-02-28 Franche Comte Alsace Etudes Te Dispositif de serrage pneumatique a genouillere
FR2555926B1 (fr) * 1983-12-02 1986-09-12 Franche Comte Alsace Etudes Te Dispositif de serrage pneumatique a genouillere
DE9412722U1 (de) * 1994-08-06 1994-09-29 DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach Kniehebelspannvorrichtung

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724837A (en) * 1970-09-02 1973-04-03 Dover Corp Retracting clamp
USRE31991E (en) * 1979-05-17 1985-09-24 Single guide rod actuating unit
US4496138A (en) * 1982-03-26 1985-01-29 Blatt Leland F Power operated clamp
US4570914A (en) * 1982-03-26 1986-02-18 Blatt Leland F Power operated clamp
US5171001A (en) * 1987-05-27 1992-12-15 Btm Corporation Sealed power clamp
US4905973A (en) * 1989-01-11 1990-03-06 Blatt John A Power operated clamp with externally mounted adjustable clamp arm
US5118088A (en) * 1990-04-30 1992-06-02 Btm Corporation Power clamp
US5165670A (en) * 1991-10-16 1992-11-24 Btm Corporation Retracting power clamp
EP0607410A4 (en) * 1992-08-07 1995-04-19 United Technologies Automotive HOLDING DEVICE TO BE OPERATED BY SLIDING.
US5575462A (en) * 1994-08-17 1996-11-19 Blatt; John A. Rotary clamp for a linear actuator
US5634629A (en) * 1994-12-22 1997-06-03 Isi Norgren Inc. Rotary clamp having a common plane mounting arrangement
US5799932A (en) * 1994-12-22 1998-09-01 Isi Norgren Inc. Rotary clamp having a common plane mounting arrangement
US6115898A (en) * 1995-06-06 2000-09-12 Btm Corporation Force multiplying apparatus for clamping a workpiece and forming a joint therein
US5884903A (en) * 1995-10-30 1999-03-23 Btm Corporation Powered clamp and gauging apparatus
US5676357A (en) * 1995-11-30 1997-10-14 Aladdin Engineering & Manufacturing, Inc. Clamp including resilient internal link
US5687961A (en) * 1995-11-30 1997-11-18 Aladdin Engineering & Manufacturing, Inc. Fluid operated clamp including integral frame and slide member support
US5816567A (en) * 1995-11-30 1998-10-06 Aladdin Engineering And Manufacturing, Inc. Fluid operated clamp including integral frame and slide member support
US5853211A (en) * 1997-01-10 1998-12-29 Btm Corporation Universal gripper
US5938259A (en) * 1997-01-10 1999-08-17 Btm Corporation Pad for universal gripper
US5871250A (en) * 1997-03-31 1999-02-16 Btm Corporation Sealed straight line gripper
US6059277A (en) * 1998-05-05 2000-05-09 Btm Corporation Retracting power clamp
US6290210B1 (en) 1999-06-01 2001-09-18 Aladdin Engineering & Manufacturing Clamping and lifting mechanism
US6634630B2 (en) 1999-06-01 2003-10-21 Aladdin Engineering & Manufacturing Clamping and lifting mechanism
US6412845B1 (en) 2000-07-07 2002-07-02 Btm Corporation Sealed gripper
US6450082B1 (en) 2000-12-18 2002-09-17 Btm Corporation Shot pin
US7815176B2 (en) 2003-09-11 2010-10-19 Phd, Inc. Lock mechanism for pin clamp assembly
WO2005056241A1 (fr) * 2003-12-04 2005-06-23 Christophe Boiteux Dispositif de serrage precis a actionnement rapide, et procede de commande
FR2863190A1 (fr) * 2003-12-04 2005-06-10 Christophe Boiteux Dispositif de serrage precis a actionnement rapide
US7467788B2 (en) 2004-04-02 2008-12-23 Phd, Inc. Pin clamp
US7516948B2 (en) 2004-04-02 2009-04-14 Phd, Inc. Pin clamp accessories
US20080287046A1 (en) * 2004-07-30 2008-11-20 Pierre Tschampion Device for Clamping a Tool Insert in a Grinding Machine
US7448607B2 (en) 2004-12-15 2008-11-11 Phd, Inc. Pin clamp assembly
US8413970B2 (en) 2007-06-19 2013-04-09 Phd, Inc. Pin clamp assembly
US8376336B2 (en) 2008-06-18 2013-02-19 Phd, Inc. Strip off pin clamp
US8459626B2 (en) 2010-05-28 2013-06-11 Btm Corporation Pin clamp

Also Published As

Publication number Publication date
DE2103482A1 (enrdf_load_stackoverflow) 1971-07-29
GB1280435A (en) 1972-07-05
FR2075670A5 (enrdf_load_stackoverflow) 1971-10-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ISI MANUFACTURING, INC., A MI CORP., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BLATT, LELAND D. AND BLATT, ELAINE E., TRUSTEES OF THE L.F BLATT U/TA APRIL 12, 1977;REEL/FRAME:005002/0465

Effective date: 19880901