US3827684A - Vice - Google Patents

Vice Download PDF

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Publication number
US3827684A
US3827684A US00334249A US33424973A US3827684A US 3827684 A US3827684 A US 3827684A US 00334249 A US00334249 A US 00334249A US 33424973 A US33424973 A US 33424973A US 3827684 A US3827684 A US 3827684A
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US
United States
Prior art keywords
vice
rack
pinion
pinions
fixed
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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
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US00334249A
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English (en)
Inventor
R Jacquet
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Individual
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Individual
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    • 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

Definitions

  • Fluid operated vices which have a piston directly thrusting on the movable jaw of the vice, are already known.
  • US. Pat. No. 2,328,061 describes a vice having one jaw fixed to its base by bolts and one movable jaw to which is fixed a rack meshing with a pinion mounted on a shaft carrying a second larger pinion which meshes with a second rack fixed to the piston rod of a hydraulic jack.
  • This invention relates to vices with fluid operated tightening.
  • An object of the invention is to provide a fluid pressure operated vice free of the disadvantages of known vices referred to above, and in particular the object is to provide a vice with pneumatic control which, although compact ensures considerable increase in the thrust force of the jack which operates it, and the jaws of which, before and after tightening onto a workpiece, can be rapidly drawn together and separated from one another, whilst avoiding shock on the workpiece.
  • the vice has its movable jaw controlled by the piston of a pneumatic or other fluid operated jack, and its base which is fast with the fixed jaw forms a guide for a movable rack operated by the piston of the jack and cooperating through reduction gearing or a gear train with a rack which is fast with the movable jaw of the vice, the reduction gearing having a disengageable toothed wheel.
  • the disengageable toothed wheel is the first pinion of the reduction gearing.
  • the disengageable toothed wheel is displaceable by a ring carried by a slidable spindle.
  • spindle may be provided with teeth, meshing with a toothed wheel coaxial and fixed to the disengageable toothed wheel.
  • the slidable spindle is advantageously provided with a milled knob which is operable by hand to rotate the spindle to effect manual movement of the movable jaw for the purpose of regulating the space between the fixed jaw and the movable jaw of the vice.
  • the reduction gearing comprises at least two coupled toothed wheels mounted on shafts at right angles to the axis of displacement of the movable jaw of the vice, such shafts being mounted in bearings carried by two parallel retaining plates.
  • the movable rack is slidable in a guideway provided in the base of the vice, and is secured to the end of the piston rod of the operating jack by a pin connection.
  • FIG. 1 is a view, partly in elevation and partly in longitudinal cross-section taken along the line I I in FIG. 2, of one embodiment of vice of the present inventron,
  • FIG. 2 is a plan view of the vice of FIG. 1 with parts shown in section along the line II II of FIG. 1,
  • FIG. 3 is a view, similar to that of FIG. 1, partly in elevation and partly in section along the line III III of FIG. 4, of another embodiment of vice of the present invention,
  • FIG. 4 is a plan view, partly in section similarly to FIG. 2 of the embodiment of the vice illustrated in FIG.
  • FIG. 5 is a cross-section view taken along the line V V of FIG. 4, and
  • FIG. 6 is a perspective view of the gear mechanism of the vice of FIG. 3.
  • the vice according to the invention has a base 1, advantageously provided with slots 2 (FIG. 2) to facilitate its fixing as by bolts to an appropriate support (not shown).
  • a fixed jaw 3 On the base 1 there is provided a fixed jaw 3, intended to cooperate with a movable jaw 4 displaceable by a fluid operated jack 5.
  • gear wheel 8 is disengageable from rack 7 by means of a spindle 9, provided with a milled knob 10, as hereinafter described.
  • This spindle 9 slides in a guide ring 11, threaded on its outside and screwed into the side plate 12. Between the plate 12 and a second opposite side plate 13, there is mounted the gear train intended to ensure an increase in the thrust force exerted by the jack 5 on the movable jaw 4.
  • This reduction gear can comprise one or more pairs of coupled toothed wheels, for example, the two pairs of coupled toothed wheels 8 and 8' and 14 and 14 in FIG. 1.
  • the movable jaw 4 has secured to it a rack 15 with its teeth, opposed to those of the rack 7, meshing with the last toothed wheel of the reduction gearing, i.e., the gear 14 in the example of FIG. 1.
  • the toothed wheels 8, 8 and 14, 14 are mounted on two parallel shafts l6 and 17, transverse to the axis of tightening movement of the jaws, which shafts are supported by pairs of bearings l8, l8 and 19, 19 secured to the plates 13 and 12, respectively.
  • the cylinder of the jack 5 comprises a rear closure plate 22, square in shape and nested by means of an annular groove on a cylindrical casing 23, inserted in its turn into a corresponding annular groove made in a front plate 24.
  • This plate 24 is provided with cylindrical reinforcing bosses 25 through which passes the piston rod of the operating jack 5 with interposition of fluidtight seals 26.
  • the external boss has an external thread for receipt of a fixing nut 27.
  • the rear plate 22 carries on its inner surface, in the axis of displacement of the piston rod of the jack, a block 29 of shock and sound absorbing material, intended to absorb, and above all silence the recoil of the piston rod of the jack.
  • a nut 6 on the end of the piston can contact such block 29.
  • the ratios of reduction are provided by the number of teeth on the toothed wheels, that is to say:
  • the milled knob 10 which is fixed to the spindle 9, permits disengagement and engagement of the pinion 8 which is free to travel longitudinally along its shaft 16.
  • the rotation of the aforementioned milled knob facilitates, through provision of teeth of a pinion 30 meshing with a pinion 30 (FIG. 2) fixed to the pinion 8, manual regulation of the opening and closing of the movable jaw over the entire range of movement thereof, when spindle 9 and thus pinion 8 are moved to disengage pinion 8 from rack 7.
  • FIGS. 3 to 6 differs from that which has just been described only in the following details:
  • the movable jaw 4 (FIGS. 5 and 6) also carries a complementary rack cooperating with a supplementary pinion 14 fixed to the shaft 17 carrying the pinion 14.
  • the movable rack 7 is displaceable on a bed 31 of rolling needles and is retained in its normal direction of displacement, at the moment of thrust of the piston of the jack 5 connected thereto, by guide elements 32 (FIG. 5) screwed onto the bottom of the gear housing and sliding in lateral grooves in the rack 7.
  • the disengagement spindle 9, provided with the milled knob 10, is placed directly below the shaft 16 carried by the bearings 18 and 18, which means that whilst in FIGS. 4 and 6 one can see the grooves 33 provided on the shaft 16 for the sliding of the pinion 30 mounted on the same socket 34 as the toothed wheel 8, one cannot, on the other hand, see the teeth of the pinion 30 situated at the end of the spindle 9, to the end of which there is fixed, in each of the two embodiments a ring 35 with its periphery located between the toothed wheels 8 and 30.
  • ring 35 acts on either pinion 8 or pinion 30 to cause longitudinal movement of both pinions. Therefore, pinion 8 is moved either into or out of engagement with rack 7.
  • the socket 34 carrying pinions 8 and 30 slides along grooves 33 on shaft 16 (see FIGS. 2 and 5).
  • a vice comprising:
  • a movable jaw mounted to move toward and away from said fixed jaw
  • fluid operated jack means having a piston and a piston rod connected to said first rack for moving said first rack with respect to said fixed jaw;
  • gear train means including a plurality of pinions, mounted for transmitting movement of said first rack into movement of said second rack and thus of said movable jaw;
  • a first of said plurality of pinions being mounted for movement to and from a first position in meshing engagement with said first rack and a second position out of meshing engagement with said first rack;
  • said gear train means comprises at least two pairs of coupled pinions, each of said pairs being mounted on a separate shaft extending transverse to the direction of movement of said movable jaw.
  • a vice as claimed in claim 3 further comprising a third pinion coaxially fixed to and axially spaced from said first pinion.
  • said spindle means comprises a spindle mounted for sliding movement in a direction parallel to said shafts; a turning knob fixed to one end of said spindle; a ring attached to a second end of said spindle, the periphery of said ring being positioned between said first and third pinions; and a fourth pinion fixed to said spindle and in meshing engagement with said third pinion.
  • a vice as claimed in claim 3 further comprising a supplementary pinion coupled to said second pair of coupled pinions, and a third rack fixed to said movable jaw and in meshing engagement with said supplementary pinion.
  • a vice as claimed in claim 1 further comprising a bed of rolling needles, said first rack being positioned for movement along said bed, said first rack having therein longitudinally extending grooves, and guide elements engaging in said grooves.
  • said jack means includes a cylinder comprising a rear end plate having a circular groove in its inside face, a cylindrical casing having one end inserted in said groove, a front end plate having a circular groove to receive the other end of said cylindrical casing, said front end plate having inner and outer bosses through which pass said piston rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Jigs For Machine Tools (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
US00334249A 1972-03-02 1973-02-21 Vice Expired - Lifetime US3827684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7207155A FR2173766B1 (es) 1972-03-02 1972-03-02

Publications (1)

Publication Number Publication Date
US3827684A true US3827684A (en) 1974-08-06

Family

ID=9094438

Family Applications (1)

Application Number Title Priority Date Filing Date
US00334249A Expired - Lifetime US3827684A (en) 1972-03-02 1973-02-21 Vice

Country Status (10)

Country Link
US (1) US3827684A (es)
BE (1) BE796064A (es)
CA (1) CA969983A (es)
CH (1) CH565015A5 (es)
DE (1) DE2309931C3 (es)
ES (1) ES412133A1 (es)
FR (1) FR2173766B1 (es)
GB (1) GB1376415A (es)
IT (1) IT979564B (es)
NL (1) NL7302931A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408146C1 (de) * 1994-03-10 1995-07-13 Ptm Produktion Tech Mechanisch Spannmodul
GB2327898A (en) * 1997-08-01 1999-02-10 Micron Workholdings Limited Clamping arrangement
CN111151945A (zh) * 2019-12-30 2020-05-15 广州创显科教设备有限公司 一种防止型材焊接变形的装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US340615A (en) * 1886-04-27 Drilling-machine
US589864A (en) * 1897-09-14 Henry c
US1259045A (en) * 1916-12-23 1918-03-12 Theodore H Proske Drill-sharpener.
US2328061A (en) * 1942-11-16 1943-08-31 Van Norman Machine Tool Co Hydraulic vise
US2772578A (en) * 1953-06-15 1956-12-04 Conitech Ltd Power transmission with declutching provision for manual operation
US2887903A (en) * 1946-07-31 1959-05-26 Heyer Don Clutch means for power feed mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US340615A (en) * 1886-04-27 Drilling-machine
US589864A (en) * 1897-09-14 Henry c
US1259045A (en) * 1916-12-23 1918-03-12 Theodore H Proske Drill-sharpener.
US2328061A (en) * 1942-11-16 1943-08-31 Van Norman Machine Tool Co Hydraulic vise
US2887903A (en) * 1946-07-31 1959-05-26 Heyer Don Clutch means for power feed mechanism
US2772578A (en) * 1953-06-15 1956-12-04 Conitech Ltd Power transmission with declutching provision for manual operation

Also Published As

Publication number Publication date
DE2309931B2 (de) 1978-08-17
GB1376415A (en) 1974-12-04
CA969983A (en) 1975-06-24
NL7302931A (es) 1973-09-04
ES412133A1 (es) 1976-01-01
IT979564B (it) 1974-09-30
CH565015A5 (es) 1975-08-15
DE2309931A1 (de) 1973-09-13
BE796064A (fr) 1973-06-18
FR2173766A1 (es) 1973-10-12
FR2173766B1 (es) 1974-08-30
DE2309931C3 (de) 1979-04-12

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