US3199859A - Clamping arrangements for tools or workpieces - Google Patents

Clamping arrangements for tools or workpieces Download PDF

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Publication number
US3199859A
US3199859A US196205A US19620562A US3199859A US 3199859 A US3199859 A US 3199859A US 196205 A US196205 A US 196205A US 19620562 A US19620562 A US 19620562A US 3199859 A US3199859 A US 3199859A
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US
United States
Prior art keywords
gripping member
face
intermediate plate
wedge
clamping
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
US196205A
Other languages
English (en)
Inventor
Heynen Max
Wiesemann Kurt
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.)
Heyco Werk Heynen GmbH and Co KG
Original Assignee
Heyco Werk Heynen GmbH and Co KG
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 Heyco Werk Heynen GmbH and Co KG filed Critical Heyco Werk Heynen GmbH and Co KG
Application granted granted Critical
Publication of US3199859A publication Critical patent/US3199859A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/066—Bench vices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings
    • 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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • 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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/241—Construction of the jaws characterised by surface features or material
    • B25B1/2415—Construction of the jaws characterised by surface features or material being composed of a plurality of parts adapting to the shape of the workpiece
    • B25B1/2421—Construction of the jaws characterised by surface features or material being composed of a plurality of parts adapting to the shape of the workpiece the parts having a linear movement
    • 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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2452—Construction of the jaws with supplementary jaws

Definitions

  • This invention relates to a clamping arrangement having a clamping device on one side and a wedge and plate packing on the other side of an object to be clamped, for example, a tool, workpiece, anvil, or a die
  • the clamping device such as a hydraulic clamp which is advantageously used consists of a carrier containing the space for fitting the usual fastening wedges and of cylinders disposed in rows or banks in the said carrier and connected together by passages, and also of a corresponding number of clamping stamps, and a pressure piston producing the working pressure on the clamping stamps and adapted to be operated by a clamp screw.
  • the plate packing with a plurality of cylinder bores connected together by passages and open only on the contact side and also with pistons acting as stamps and acted on by hydraulic pressure. It is also known to dispose between the object to be clamped and the piston acting as stamp, intermediate layers which are mounted in the maner of a ball joint on the said stamp piston and are flat on the clamping or tool side. in this arrangement the distribution of the necessary clamping force over a plurality of clamping or stamp pistons or their intermediate layers is able to produce effective pressing, but the hydraulically acting plate inserts, used instead of the usual plate and wedge packings, are relatively expensive. The depth of installation in the supporting direction is also relatively very great.
  • the usual plate and wedge packing In comparison with the hydraulic plate insert with which the clamping is distributed over a number of stamps for its transmission, the usual plate and wedge packing, however, has the disadvantage that the pressing is distributed over a large contact surface corresponding to the length of the plate and Wedge packing.
  • plate packings are known which are shaped as plates making contact only at the edges, but partly because of edge surfaces with great edge length and partly through the action of temperature originating from heated hammer dies, and in addition owing to different oxidation of the long contact edges, these plates cause irregular pressing which must then be balanced by a number of thin packing sheets or shims which give rise to further inaccuracies.
  • Harnmer mechanism vibrations are also transmitted to the packing side and in consequence of the compressibility of the hydraulic medium are further increased at high pressure, these vibrations having been found by experience to produce loosening the more readily, the less uniform the contact surfaces and the pressing and the more numerous the thin sheet-metal packings or shims.
  • the present invention aims at obviating the foregoing disadvantages and to this end consists in a clamping arrangement, comprising a table or base plate adapted to support an object to be clamped, a clamping device at one side of said table, and at least one wedge and an intermediate plate at the other side of said table, wherein said intermediate plate is provided with at least one gripping member which stands back in relation to the base of said intermediate plate and is movably connected thereto, said object being adapted to be clamped between said clamping device and said gripping member and wherein the surface of said gripping member contacting said inermediate plate and the corresponding surface of the latter are curved at least cylindrically in the longitudinal direction.
  • the contacting surfaces are curved circularly in all directions, that is spherically.
  • the outer surface of the intermediate plate contacting the Wedge and the corresponding surface of the latter are curved cylindrically outwards transversely to the longitudinal direction.
  • An improvement of the adhesiveness of the gripping members is achieved by concentric grooves on their clamping side.
  • FEGURE l is a vertical section on the line ll of FIG. 3 with cylindrically curved contact sides of the gripping members
  • FIGURE 2 is another vertical section with spherical curving of the contact side of the gripping member
  • FIGURE 3 is a sectional plan on the line 11-11 of FIG. 1,
  • giGURE 4 is a plan view of a modified arrangement
  • FIGURE 5 shows the clamp side of the gripping member illustrated in FIG. 2.
  • a hydraulic clamping device 4 comprising the clamp body 5 and clamping pistons 6, while between the object 1 and the abutment side 7 on the other side there are disposed the plate intermediate 8 and the adjustment wedge 9, lying on the clamp table 3.
  • the intermediate plate 8 and also a second intermediate plate 8 disposed at the other end of the table have a gripping member 11 standing back in relation to the base 1% of the intermediate plate 8 and movably connected thereto.
  • Each of the gripping members 11 has a threaded bore 13 into which a coil spring 12 is screwed, the inner end of said spring being secured to the gripping member 11.
  • the outer end of the coil spring 12 projects to the extent of the thickness of the body of the intermediate plate 8, the said body having a correspondingly threaded hole 13 into which the coil spring 12 carrying the gripping member 11 can be screwed. The extent of this movement is limited by the contact of the surfaces 14 and 15, facing each other, of the gripping member 11 and the body of the intermediate plate 8 respectively.
  • the contact surface 14 of the member 11 and the abutment surface 15 of the plate 8 are curved outwardly, that is to say cylindrically in the longitudinal direction. They can, however, in accordance with FIG- URES 2 and 3 also be curved spherically outwards.
  • the rear outer surface 16 of the body of the plate 3 shown in FIGURE 2 and also the abutment surface 17 of the wedge 9 can be fiat, preferably inclined in accordance with the inclination of the table slot.
  • the contact surface 16 and abutment surface 17 are curved cylindrically outwards transversely to the longitudinal direction.
  • the clamp surface 18 U of the gripping member 11 shown in elevation in FIGURE 5 is flat and provided with grooves 19 disposed concentrically in spaced relationship to one another.
  • the raised ring surfaces 2% lying in one plane and of slight thickness are the adhesion and clamping surfaces which by virtue of the construction of the clamping arrangement according to the invention press during clamping into the plane of the clamp sides of the object 1 to be clamped.
  • the clamping device is a hydraulic clamp and in the plan in FEGURE 4 a wedge clamp, the wedge being indicated by reference numeral 21.
  • the body of the plate 8 can also extend over the entire length of the table that is from one to the other end thereof. It can then be provided with one but preferably with a plurality of gripping members 11.
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting upwardly from the upper face of the base plate; clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage with gripping portions at the other side thereof the object to be clamped; at least one wedge engaging with one face thereof the other of said abutment portions and having an opposite face facing said object; an intermediate plate extending along said wedge and abutting with one surface thereof said opposite face of said wedge; at least one gripping member having a rear face abutting along the whole area thereof against said intermediate plate at a surface thereof opposite said one surace and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of said clamping means and said front face of said gripping member, said gripping member being spaced from said upper face of said base plate; and resilient connecting means connecting said gripping member to
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting upwardly from the upper face of the base plate; clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage with gripping portions at the other side thereof the object to be clamped; at least one Wedge engaging with one face thereof the other of said abutment portions and having an opposite face facing said object; an intermediate plate extending along said wedge and abutting with one surface thereof said opposite face of said wedge; at least one gripping member having a substantially spherically curved rear face abutting along the whole surface thereof against a correspondingly curved surface portion of said intermediate plate matching said curvature of said rear face and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of said clamping means and said front face of said gripping member, said gripping member being spaced from
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting upwardly from the upper face of the base plate; clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage with gripping portions at the other side thereof the object to be clamped; at least one wedge engaging with one face thereof the other of said abutment portions and having an opposite face facing said object; an intermediate plate extending along said wedge and abutting with one surface thereof said opposite face of said wedge; at least one gripping member having a substantially spherically curved rear face abuttin along the whole surface thereof against a correspondingly curved surface portion of said intermediate plate matching said curvature of said rear face and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of said clamping means and said front face of said gripping member, said gripping member being spaced from said upper
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting upwardly from the upper face of the base plate; clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage with gripping portions at the other side thereof the object to be clamped; at least one wedge engaging with one face thereof the other of said abutment portions and having a curved opposite face facing said object; an intermediate plate extending along said wedge and abutting with one surface thereof said opposite face of said Wedge, said one surface having a curvature matching that of said opposite face of said wedge; at least one gripping member having a substantially spherically curved rear face abutting along the whole surface thereof against a correspondingly curved surface portion of said intermediate plate matching said curvature of said rear face and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting upwardly from the upper face of the base plate; clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage with gripping portions at the other side thereof the object to be clamped; at least one wedge engaging with one face thereof the other of said abutment portions and having an opposite face facing said object; an intermediate plate extending along said wedge and abutting with one surface thereof said opposite face of said wedge; at least one gripping member having a substantially spherically curved rear face abutting along the whole surface thereof against a correspondingly curved surface portion of said intermediate plate matching said curvature of said rear face and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of said clamping means and said front face of said gripping member, said front face of said gripping member being
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting upwardly from the upper face of the base plate; clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage with gripping portions at the other side thereof the object to be clamped; at least one Wedge engaging with one face thereof the other of said abutment portions and having an opposite face facing said object; an intermediate plate extending along said Wedge and abutting with one surface thereof said opposite face of said Wedge; at least one button shaped gripping member having a substantially spherically curved rear face abutting along the Whole surface thereof against a correspondingly curved surface portion of said intermediate plate matching said curvature of said rear face and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of said clamping means and said front face of said gripping member, said front face
  • a clamping arrangement comprising, in combination, a base plate adapted to support an object to be clamped by the clamping arrangement and having along opposite edges thereof abutment portions projecting up- Wardly from the upper face of the base plate; hydraulic clamping means abutting with one side thereof against one of said abutment portions and adapted to clampingly engage With gripping pistons at the other side thereof the object to be clamped; at least one Wedge engaging with one face thereof the other of said abutment portions and having an opposite face facing said object; an intermediate plate extending along said wedge and abutting with one surface thereof said opposite face of said wedge; at least one gripping member having a substantially spherically curved rear face abutting along the Whole surface thereof against a correspondingly curved surface portion of said intermediate plate matching said curvature of said rear face and a front face adapted to clampingly engage said object so that the same may be securely clamped between said gripping portions of said clamping means and said front face of said gripping member, said gripping member

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Clamps And Clips (AREA)
US196205A 1961-05-24 1962-05-21 Clamping arrangements for tools or workpieces Expired - Lifetime US3199859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0042690 1961-05-24

Publications (1)

Publication Number Publication Date
US3199859A true US3199859A (en) 1965-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US196205A Expired - Lifetime US3199859A (en) 1961-05-24 1962-05-21 Clamping arrangements for tools or workpieces

Country Status (3)

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US (1) US3199859A (de)
GB (1) GB993698A (de)
LU (1) LU41694A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326032A (en) * 1964-06-17 1967-06-20 Wesley C Meinderding Self-retaining key
US4729232A (en) * 1984-11-08 1988-03-08 Anderson-Cook, Inc. Machines for pressure forming surface configurations on a rotary workpiece
US20110179877A1 (en) * 2010-01-27 2011-07-28 Rolls-Royce Plc Apparatus for generating vibrations in a component

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US615071A (en) * 1898-11-29 Frederick a
US1453176A (en) * 1921-03-18 1923-04-24 Perrine Lester Compensating jaw for chucks and the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US615071A (en) * 1898-11-29 Frederick a
US1453176A (en) * 1921-03-18 1923-04-24 Perrine Lester Compensating jaw for chucks and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326032A (en) * 1964-06-17 1967-06-20 Wesley C Meinderding Self-retaining key
US4729232A (en) * 1984-11-08 1988-03-08 Anderson-Cook, Inc. Machines for pressure forming surface configurations on a rotary workpiece
US20110179877A1 (en) * 2010-01-27 2011-07-28 Rolls-Royce Plc Apparatus for generating vibrations in a component
US8650961B2 (en) * 2010-01-27 2014-02-18 Rolls-Royce Plc Apparatus for generating vibrations in a component

Also Published As

Publication number Publication date
GB993698A (en) 1965-06-02
LU41694A1 (de) 1962-07-12

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