US3847381A - Pneumatic vise with high clamping force - Google Patents

Pneumatic vise with high clamping force Download PDF

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Publication number
US3847381A
US3847381A US00298598A US29859872A US3847381A US 3847381 A US3847381 A US 3847381A US 00298598 A US00298598 A US 00298598A US 29859872 A US29859872 A US 29859872A US 3847381 A US3847381 A US 3847381A
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US
United States
Prior art keywords
wedge
movable
piston
movable clamping
clamping member
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
US00298598A
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English (en)
Inventor
A Riggio
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.)
Individual
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
Priority claimed from IT1300671A external-priority patent/IT938731B/it
Priority claimed from IT1288072A external-priority patent/IT1010512B/it
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3847381A publication Critical patent/US3847381A/en
Anticipated expiration legal-status Critical
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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/08—Arrangements for positively actuating jaws using cams

Definitions

  • the present invention provides a new clamping detapped bore in wedge 10.
  • a roll 11 suitable to support the forces exerted by pneumatic cylinder 8 on wedge and to facilitate the sliding of the wedge 10 along roll ll.
  • Roll 12 ismounted in member 6 and is similar to roll 11. Roll 12 is suitable to receive the working force exerted by wedge 10 and to facilitate the sliding of the inclined surface of the wedge 10.
  • Screw 13 is connected to member 5 in a conventional manner to enable manual opening and closing of jaws 2 and 4. When the manual adjustment via screw 13 is completed, member 5 remains fixed with respect to jaw 2, and only member 6 is actually movable under the action of cylinder 8 an wedge 10.
  • the clamping device is a vise having a fixed jaw and a movable jaw, the movable jaw having, in turn, a support member and a movable member.
  • the movable jaw and the support and movable members thereof are movable along a guide member toward and away from the fixed jaw.
  • a pneumatic piston and cylinder is arranged with its axis inclined, and preferably perpendicular, to the axis of the guide member, and the wedge is fixed to one end of the piston and between the support member and movable member of the movable jaw in such a way that when the piston.
  • the wedge moves the wedge, the wedge slides with one face against the support member of the movable jaw and the other face against the movable member of the movable jaw so that the movable jaw closes toward the fixed jaw.
  • FIG. 1 is a side view in partial section taken along line A-A of FIG. 2 of a vise according to the invention
  • FIG. 2 is a top view of the vise in partial section taken along line 8-8 of FIG. I;
  • FIG. 3 is a section of the vise taken along line C-C of FIG. 2.
  • the vise has a support or backing plate 1 on which is mounted fixed jaw 2 at one end and, in the upper part, sliding guides 3. Movable jaw 4 slides along guides 3.
  • the movable jaw 4 has members 5 and 6 which are connected by spring member 7. At a right angle to guides 3 is pneumatic cylinder 8 and piston 8a to which is secured shaft 9. A wedge 10 having a relatively small angle a at its vertex is fastened to shaft 9 by suitable means, such as by screwing the end of shaft 9 into a
  • the operation of the device is as follows. Compressed air is led into cylinder 8 from an external source (not shown) and piston 9 moves to the right (as viewed in FIG. 2), thereby moving wedge 10 between rolls 111 and 12. Roll 12 is thus caused to move along the inclined section of the wedge against the bias of spring member 7, thereby moving movable jaw 4 along guides 3 toward fixed jaw 2 to. tighten the workpiece between jaws 2 and 4.
  • the action of the compressed air cylinder is thus magnified by the wedge 10 inversely to the tangent of an angle a at the vertex of the wedge.
  • rolls ll and 12 may be replaced by multiple rolls or roller bearings or other roller friction systems.
  • a clamping device for exerting substantially large working forces to hold a workpiece comprising, in combination, a plate, a fixed clamping member and a movable clamping member between which said work piece is held; a support member for supporting said movable clamping member; a pneumatic piston and stationary cylinder on said support member; a wedge member connected to said piston, said wedge member moving said movable clamping member toward said fixed clamping member when said pneumatic piston is actuated within said stationary cylinder, the working force moving said movable clamping member being inversely proportional to the tangent of the angle of the vertex of the wedge of said wedge member; spring means uring said movable clamping member toward said support member, said wedge member being secured to an end of the piston and being located between said support member and said movable clamping member, said wedge member moving said movable clamping member away from said support member against the bias of said spring means when said piston is actuated, said piston and wedge member moving along a path of travel perpendicular to the path of travel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
US00298598A 1971-10-26 1972-10-18 Pneumatic vise with high clamping force Expired - Lifetime US3847381A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1300671A IT938731B (it) 1971-10-26 1971-10-26 Morsa pneumatica ad alta pressione di bloccaggio
IT1288072A IT1010512B (it) 1972-09-07 1972-09-07 Morsa pneumatica ad alta pressione di bloccaggio

Publications (1)

Publication Number Publication Date
US3847381A true US3847381A (en) 1974-11-12

Family

ID=26326612

Family Applications (1)

Application Number Title Priority Date Filing Date
US00298598A Expired - Lifetime US3847381A (en) 1971-10-26 1972-10-18 Pneumatic vise with high clamping force

Country Status (5)

Country Link
US (1) US3847381A (de)
JP (1) JPS4851400A (de)
DE (1) DE2249506C3 (de)
FR (1) FR2159066A5 (de)
GB (1) GB1363177A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523491A1 (fr) * 1982-03-18 1983-09-23 Gastaldo Giovanni Etau parallele de precision
CN107442673A (zh) * 2017-08-16 2017-12-08 武汉思瑞法机器人制造有限公司 一种可增强管料夹持力的夹模结构

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA791211B (en) * 1978-03-29 1980-03-26 P Rowe Pressure assemblies
JPS58169958U (ja) * 1982-04-15 1983-11-12 株式会社共立製作所 エア−バイス
JP2579523Y2 (ja) * 1991-03-26 1998-08-27 相生精機株式会社 クランプ装置
EG23118A (en) 2000-06-05 2004-04-28 Stolt Offshore Ltd Pipe handling apparatus
EG22602A (en) * 2000-06-05 2003-04-30 Stolt Offshore Ltd Clamp and pipe handling apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1751329A (en) * 1927-08-31 1930-03-18 Henry A Sawyer Vise
US1869631A (en) * 1931-02-05 1932-08-02 Illinois Tool Works Workholding vise
US2656748A (en) * 1949-09-06 1953-10-27 United States Steel Corp Gripping machine
US2840381A (en) * 1953-07-02 1958-06-24 Ajax Mfg Co Wire gripping mechanism
US3192600A (en) * 1961-08-28 1965-07-06 Giddings & Lewis Clamp for machine tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1751329A (en) * 1927-08-31 1930-03-18 Henry A Sawyer Vise
US1869631A (en) * 1931-02-05 1932-08-02 Illinois Tool Works Workholding vise
US2656748A (en) * 1949-09-06 1953-10-27 United States Steel Corp Gripping machine
US2840381A (en) * 1953-07-02 1958-06-24 Ajax Mfg Co Wire gripping mechanism
US3192600A (en) * 1961-08-28 1965-07-06 Giddings & Lewis Clamp for machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523491A1 (fr) * 1982-03-18 1983-09-23 Gastaldo Giovanni Etau parallele de precision
CN107442673A (zh) * 2017-08-16 2017-12-08 武汉思瑞法机器人制造有限公司 一种可增强管料夹持力的夹模结构

Also Published As

Publication number Publication date
DE2249506A1 (de) 1973-05-03
DE2249506C3 (de) 1975-05-22
GB1363177A (en) 1974-08-14
FR2159066A5 (de) 1973-06-15
JPS4851400A (de) 1973-07-19
DE2249506B2 (de) 1974-10-03

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