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EP0272120A2 - Spann- oder Pressvorrichtung - Google Patents

Spann- oder Pressvorrichtung Download PDF

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Publication number
EP0272120A2
EP0272120A2 EP87311126A EP87311126A EP0272120A2 EP 0272120 A2 EP0272120 A2 EP 0272120A2 EP 87311126 A EP87311126 A EP 87311126A EP 87311126 A EP87311126 A EP 87311126A EP 0272120 A2 EP0272120 A2 EP 0272120A2
Authority
EP
European Patent Office
Prior art keywords
screw
sleeve
pitch
clamping
vice
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.)
Withdrawn
Application number
EP87311126A
Other languages
English (en)
French (fr)
Other versions
EP0272120A3 (de
Inventor
Tai-Her Yang
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 GB08630148A external-priority patent/GB2198974A/en
Priority claimed from US06/943,773 external-priority patent/US4760999A/en
Priority claimed from GB8720518A external-priority patent/GB2209294A/en
Application filed by Individual filed Critical Individual
Publication of EP0272120A2 publication Critical patent/EP0272120A2/de
Publication of EP0272120A3 publication Critical patent/EP0272120A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B30B1/20—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means driven by hand
    • 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
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
    • 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
    • B25B1/2426—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 pivotal 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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • 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
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/103—Arrangements for positively actuating jaws using screws with a hinge

Definitions

  • the invention relates to screw-operated clamping or pressing devices, such as, for example, engineers' or carpenters' vices' engineers, clamps, and presses for various purposes.
  • the jaw of the vice or clamp or the platen of the press has a relatively long travel against a low resistance while it is being advanced into position, followed by a much shorter travel against a high opposing force as it is tightened to exert its clamping or pressing action. If the operating screw is of high pitch the long initial travel is slow and tedious, while if the pitch is low a considerable effort is needed to exert sufficient pressure for clamping or pressing.
  • the present invention is directed to providing a better compromise between initial travel speed and final pressure.
  • the screw of a clamping or pressing device engages first and second parts of the device to cause relative motion between them.
  • the screw passes through a sleeve carrying a thread of a second pitch, different from that of the screw, and engages one of the parts of the device directly and the other via the sleeve, in such a way that the relative movement of the part of the device is the sum of those due to the sleeve and the screw when they are rotated separately.
  • Figure 1 shows an engineers vice according to the invention.
  • the vice comprises a body 101 carrying a fixed jaw and slotted in the usual manner for bolting to the work table of a machine, such as a milling machine or grinder.
  • a movable jaw 102 runs on slides provided one body and is moved backwards and forwards by a screw 104, which may be turned by a knob 110.
  • the screw 104 is screwed through a sleeve 111 which itself is screwed into the body of the vice by a second screw thread 108 of much finer pitch than the screw 104.
  • the sleeve 111 is provided with a knurled outer surface 106 for ease of turning by hand and with a hexagonal nut 107 to allow it to be tightened with a spanner.
  • the arrangement is shown in section in Figure 2. Operation of the clamp depends on the fact that the threads of the main screw 104 and of the sleeve 111 are of different pitches, that of the screw 104 being very much coarser.
  • the movable jaw 102 When an object is to be clamped in the vice the movable jaw 102 is advanced by turning the knob 110 and this advances the jaw rapidly, since the thread 104 is of coarse pitch.
  • the sleeve 111 When the object has been loosely gripped between the jaws the sleeve 111 is rotated with the fingers by gripping the knurled surface 106, and because the screw thread 108 of the sleeve is of much finer pitch, the object can be clamped tightly with little effort. If even tighter clamping is required it may be achieved by the use of a spanner on the hexagonal nut head 107.
  • Figure 3 shows the application of the invention to a bench vice.
  • the features specific to the present invention are shown in a partly exploded view to clarify their construction.
  • the vice has a body 101, part of which forms the fixed jaw, and a movable jaw 102, and a screw 104 provides for movement of the movable jaw towards or away from the fixed jaw.
  • the screw 104 has an enlarged shank 112 at the handle end, and this carries the second screw thread 108, which is of much finer pitch than that of the main screw 104.
  • a short sleeve 114 carries a matching internal thread, and is formed with an enlarged hexagonal head 116. This head bears against the movable jaw 102 of the vice through a thrust ball-bearing 117 (in Figure 3 the parts are shown separated for clarity).
  • the vice In operation the vice is closed on the object to be gripped in the usual manner by tightening screw 104, which engages a mating screw-thread within the body of the vice and not visible in the drawing and, thrusts the movable jaw towards the fixed jaw through the sleeve 114 and thrust bearing 117. This movement is fairly rapid because of the coarse pitch of the screw 104.
  • the vice is finally tightened by turning the enlarged hexagonal head 116 of the sleeve 114, either with a spanner or by means of a further handle 118, as indicated in Figure 3. Because of the much finer pitch of the second screw thread 108 a very tight grip may be obtained.
  • Figure 3 also shows a further feature which may be employed in a vice, either in conjunction with the present invention or independently of it.
  • This comprises an additional means for clamping a long object of small cross-section, such as a pipe or rod.
  • the far end of the vice body beyond the end of the screw 104 is provided with an aperture 141 having a toothed concave surface 142 at its further rim.
  • An exactly similar corresponding aperture is formed at the underside of the body immediately opposite the aperture 141, this, of course, not being visible in the Figure.
  • An opposed toothed concave surface 143 is formed on the end of the part carrying the movable jaw, part of it being visible in the figure through the aperture 141.
  • a rod or tube is inserted through the aperture 141 and the corresponding lower aperture it may be gripped by tightening the screw 104 and, if necessary, when a particularly tight grip is required, for example, for cutting a screw thread, the sleeve 114 may be tightened to give an even more secure grip.
  • the construction may, of course, be reversed, so that the toothed edges 142,143 face in the opposite directions.
  • such a vice is provided with a swivel base as shown at 144, with clamping means 145, enabling the vice to be turned round so that its tail end projects over the edge of the bench and, allowing long pipes or rods to be gripped vertically.
  • Figures 4 and 5 show respectively, in a partly broken away view and in longitudinal part-section, a further form of engineers' vice according to another aspect of the invention.
  • the screw 104 passes freely through the middle of the sleeve 111 and its threaded portion 121 engages the movable jaw 122, this screw threaded into the fixed part of the vice body and carries a thrust bearing 117, which bears against a shoulder 129 on the screw 104.
  • FIG 6 shows a pair of engineers, clamps according the invention, and these operate as described with reference to Figure 3.
  • the jaws 148,149 are operated by a pair of screws 104, each provided with a knurled knob 110 and having an enlarged shank threaded with a thread of much finer pitch, on which is threaded a sleeve in the form of a butterfly nut 150.
  • the clamps are operated in the usual manner by turning the knobs 110 to tighten the screws 104, and final tightening can carried out by turning the butterfly-nut sleeves 150.
  • Figure 7 shows a hand vice working on same principle.
  • the arrangement of the screw 104 and the butterfly-nut sleeve 150 is identical to that of Figure 7, and the vice is tightened in the same way.
  • Figure 8 shows a press having a base 152 and a slide 154.
  • the main screw carries a operating handle 156 and is formed with an enlarged shank engaged by a sleeve forming the boss of a hand-wheel 158.
  • the slide will carry a die or other tool which is brought down into position on the work by turning the handle 156.
  • the slide can then be advanced powerfully by rotating the hand wheel, whose boss engages the fine thread on the shank of the screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Clamps And Clips (AREA)
EP87311126A 1986-12-17 1987-12-17 Spann- oder Pressvorrichtung Withdrawn EP0272120A3 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB8630148 1986-12-17
GB08630148A GB2198974A (en) 1986-12-17 1986-12-17 Vices
US943773 1986-12-19
US06/943,773 US4760999A (en) 1986-12-19 1986-12-19 Clamping device
GB8720518 1987-09-01
GB8720518A GB2209294A (en) 1987-09-01 1987-09-01 Clamping device with screw-threaded adjustment

Publications (2)

Publication Number Publication Date
EP0272120A2 true EP0272120A2 (de) 1988-06-22
EP0272120A3 EP0272120A3 (de) 1989-10-11

Family

ID=27263254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87311126A Withdrawn EP0272120A3 (de) 1986-12-17 1987-12-17 Spann- oder Pressvorrichtung

Country Status (3)

Country Link
EP (1) EP0272120A3 (de)
AU (1) AU8267287A (de)
PL (1) PL269526A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324724A2 (de) * 1988-01-14 1989-07-19 René Wenger Spannzwinge für Holzarbeiter
CN103273435A (zh) * 2013-05-31 2013-09-04 张立 一种机加工夹紧装置
EP2930289A1 (de) * 2014-03-31 2015-10-14 BKS GmbH SCHLIEßZYLINDER UND MONTAGEVORRICHTUNG
RU176554U1 (ru) * 2017-05-10 2018-01-23 Акционерное общество "Научно-исследовательское проектно-технологическое бюро "Онега" Быстродействующие тиски
WO2018050294A1 (de) * 2016-09-15 2018-03-22 Allmatic-Jakob Spannantrieb und zentrischspannsystem
CN110181422A (zh) * 2019-07-10 2019-08-30 苏州市职业大学 一种虎钳
RU2710141C1 (ru) * 2018-12-10 2019-12-25 Вадим Алексеевич Осеннов Струбцина

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU597545B2 (en) * 1987-09-03 1990-05-31 Chaolai Fan A mechanical program-controlled fast range-adjusting device
CN104057328A (zh) * 2013-12-13 2014-09-24 芜湖市天雄新材料科技有限公司 压力可控型高精度微调夹具
CN104015072A (zh) * 2013-12-16 2014-09-03 芜湖市天雄新材料科技有限公司 压力可控型棘爪防松式快速装夹夹具

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US584872A (en) * 1897-06-22 Samuel harrison
FR395269A (de) * 1900-01-01
FR395877A (fr) * 1908-10-31 1909-03-20 Marie Roche Étau à double serrage
GB128948A (en) * 1913-09-13 1920-09-27 Edouard Henri Veignault Improvements in or relating to Vices.
FR513712A (fr) * 1920-04-14 1921-02-22 Albert Marie Romain Gaudin Presse à double effet
FR548634A (fr) * 1922-03-09 1923-01-19 Dispositif de serrage énergique pour étaux
DE372180C (de) * 1914-01-05 1923-03-24 Joseph Bonmariage Klemmvorrichtung mit Schraubengetriebe
FR585366A (fr) * 1924-08-14 1925-02-26 Combinaison de vis à pas différents pour diverses machines
DE468927C (de) * 1927-09-08 1928-11-26 Homberg & Kuelz Schnellspannschraubstock
CH153559A (de) * 1930-08-27 1932-03-31 Schleiftechnische Ges A G Schnellspannschraubstock.
CH349937A (de) * 1957-01-29 1960-10-31 Ernest H Fischer S Soehne Ag Einspannvorrichtung für Werkstücke, insbesondere Schraubstock
US3055654A (en) * 1960-02-03 1962-09-25 Harrison Henry Screw clamp
FR1331361A (fr) * 1962-02-23 1963-07-05 Dispositif de serrage et d'avances perfectionné
GB994271A (en) * 1961-03-29 1965-06-02 Wahli Marcel Improvements in or relating to clamping devices
DE3324282A1 (de) * 1983-07-06 1985-03-28 Georg 6927 Bad Rappenau Schlitter Parallel-schraubzwinge

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US584872A (en) * 1897-06-22 Samuel harrison
FR395269A (de) * 1900-01-01
FR395877A (fr) * 1908-10-31 1909-03-20 Marie Roche Étau à double serrage
GB128948A (en) * 1913-09-13 1920-09-27 Edouard Henri Veignault Improvements in or relating to Vices.
DE372180C (de) * 1914-01-05 1923-03-24 Joseph Bonmariage Klemmvorrichtung mit Schraubengetriebe
FR513712A (fr) * 1920-04-14 1921-02-22 Albert Marie Romain Gaudin Presse à double effet
FR548634A (fr) * 1922-03-09 1923-01-19 Dispositif de serrage énergique pour étaux
FR585366A (fr) * 1924-08-14 1925-02-26 Combinaison de vis à pas différents pour diverses machines
DE468927C (de) * 1927-09-08 1928-11-26 Homberg & Kuelz Schnellspannschraubstock
CH153559A (de) * 1930-08-27 1932-03-31 Schleiftechnische Ges A G Schnellspannschraubstock.
CH349937A (de) * 1957-01-29 1960-10-31 Ernest H Fischer S Soehne Ag Einspannvorrichtung für Werkstücke, insbesondere Schraubstock
US3055654A (en) * 1960-02-03 1962-09-25 Harrison Henry Screw clamp
GB994271A (en) * 1961-03-29 1965-06-02 Wahli Marcel Improvements in or relating to clamping devices
FR1331361A (fr) * 1962-02-23 1963-07-05 Dispositif de serrage et d'avances perfectionné
DE3324282A1 (de) * 1983-07-06 1985-03-28 Georg 6927 Bad Rappenau Schlitter Parallel-schraubzwinge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THE OFFICIAL GAZETTE OF THE UNITED STATES PATENT OFFICE, vol. 79, no. 12, 22nd June 1897; & US-A-584 872 (S. HARRISON) 31-10-1896 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324724A2 (de) * 1988-01-14 1989-07-19 René Wenger Spannzwinge für Holzarbeiter
EP0324724A3 (de) * 1988-01-14 1990-04-18 René Wenger Spannzwinge für Holzarbeiter
CN103273435A (zh) * 2013-05-31 2013-09-04 张立 一种机加工夹紧装置
EP2930289A1 (de) * 2014-03-31 2015-10-14 BKS GmbH SCHLIEßZYLINDER UND MONTAGEVORRICHTUNG
WO2018050294A1 (de) * 2016-09-15 2018-03-22 Allmatic-Jakob Spannantrieb und zentrischspannsystem
RU176554U1 (ru) * 2017-05-10 2018-01-23 Акционерное общество "Научно-исследовательское проектно-технологическое бюро "Онега" Быстродействующие тиски
RU2710141C1 (ru) * 2018-12-10 2019-12-25 Вадим Алексеевич Осеннов Струбцина
CN110181422A (zh) * 2019-07-10 2019-08-30 苏州市职业大学 一种虎钳

Also Published As

Publication number Publication date
PL269526A1 (en) 1988-09-29
EP0272120A3 (de) 1989-10-11
AU8267287A (en) 1988-08-11

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