EP0366830A1 - Etabli de serrage - Google Patents

Etabli de serrage Download PDF

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Publication number
EP0366830A1
EP0366830A1 EP88118438A EP88118438A EP0366830A1 EP 0366830 A1 EP0366830 A1 EP 0366830A1 EP 88118438 A EP88118438 A EP 88118438A EP 88118438 A EP88118438 A EP 88118438A EP 0366830 A1 EP0366830 A1 EP 0366830A1
Authority
EP
European Patent Office
Prior art keywords
clamping
jaws
pull rod
bench
force
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Withdrawn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
EP88118438A
Other languages
German (de)
English (en)
Inventor
Jacques Bertschinger
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.)
Haustechnik Eugster & Co
Original Assignee
Haustechnik Eugster & Co
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 Haustechnik Eugster & Co filed Critical Haustechnik Eugster & Co
Priority to EP88118438A priority Critical patent/EP0366830A1/fr
Publication of EP0366830A1 publication Critical patent/EP0366830A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
    • 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

Definitions

  • the invention relates to a clamping bench with at least two clamping jaws for clamping workpieces.
  • Clamping benches for clamping workpieces are known in which the clamping force by which the workpieces are held between the clamping jaws is generated by a spindle drive for the adjustment of the clamping jaws.
  • These clamping banks have the disadvantage that the clamping process is lengthy due to the small thread pitches which are required to generate high clamping forces and, in addition, no defined clamping forces can be generated with such clamping banks. Clamping is particularly difficult when working with balsa wood or other such sensitive materials, since there is a risk that the workpiece will either be crushed or not clamped tightly enough.
  • Another advantageous embodiment of the invention is that an adjusting device is provided for adjusting a spring preload. This measure ensures that a sufficiently large clamping force is available even for small workpieces which require a small distance between the clamping jaws and thus only a small spring extension or extension.
  • An expedient embodiment of the invention also consists in providing a screw-type clamping device for generating an additional clamping force. This device can be operated if, in special cases, extremely high clamping forces are required, which cannot be generated by the spring.
  • the reference numerals 1 and 2 denote two clamping jaws, of which the clamping jaw 1 is designed as a worktop with the flat working surface 14.
  • the two tie rods 7 are fastened, which are provided by guides 8 in the clamping jaw 1 designed as a worktop, preferably made of solid wood .
  • guides 8 in the clamping jaw 1 designed as a worktop, preferably made of solid wood .
  • separate guides in parts that are connected to the clamping jaw 1 e.g. be provided in a holder for the jaws 1.
  • grooves would also be conceivable for guiding the tie rods.
  • a cross bar between the tie rods 7 is designated.
  • the tie rods are guided with their thread 9 through the crossbar and fastened to the crossbar with the aid of the nuts 23.
  • the lever 4 is pivotably arranged on the crossbar.
  • the cross bar which is round in the present exemplary embodiment, is guided through a sleeve 27 provided at the lower end of the lever 4.
  • the lever 4 is also connected to the clamping jaw 1 by a link 11 which is movable in the pivoting plane of the lever.
  • the articulation provided on the jaw 1 in the present exemplary embodiment could also be on another part connected to the jaw, e.g. a holder for the jaws.
  • the devices denoted by 6 consist of a threaded bolt which is guided through the crossbar 10 and fastened to it by means of the nuts 24 and projects into blind holes 22 which are formed in the clamping jaw 1.
  • Wing nuts 13 are provided on the threaded bolt and can be brought to a stop against the clamping jaws 1. The stop could also be against a part connected to the clamping jaw 1, through which the contact pressure of the nut is transmitted to the clamping jaws. Washers are expediently arranged between the wing nut and the clamping jaw.
  • the lever 4 For clamping a workpiece, the lever 4 is pivoted transversely to the clamping bench in the direction facing away from the clamping bench, as a result of which the tie rods with the clamping jaws 2 attached to them are moved in the opposite direction and a space is created between the clamping jaws for clamping a workpiece.
  • the springs 3 After releasing the lever, the springs 3 a defined clamping force exerted by which the workpiece is held between the jaws 1 and 2.
  • a clamping bench according to the invention in particular with a clamping bench which has a lever clamping device as the clamping bench as the clamping jaw opening device according to the exemplary embodiment of FIGS. 1 and 2, workpieces can be clamped faster than with conventional clamping banks which have a spindle drive for the adjustment of the clamping jaws .
  • a spindle drive preferably with a large thread pitch for quick clamping, could also be provided for a clamping bench according to the invention as clamping jaw opening device.
  • clamping force depends on how far apart the clamping jaws 1 and 2 are, there are only small pressing forces for small workpieces.
  • a greater preload of the springs 3 can advantageously be set with the aid of the knurled nuts 5, so that a sufficiently large and defined clamping force can be generated even with a narrow clamping gap.
  • defined clamping forces are e.g. when processing workpieces made of sensitive materials, e.g. Balsa wood, required.
  • the clamping devices 6 can be used to generate an additional contact force by bringing the wing nuts 13 against the clamping jaws 1.
  • the lever 4 is appropriately attached in the present embodiment so that it is not in the way of the user who operates the bench from the opposite side.
  • the attachment in the middle of the crossbar 10 results in a uniform transmission of force to both tie rods 7, which is advantageous for the smooth operation of the jaw opening device.
  • the connection between the handlebar 11 and the lever 4 is expediently made by an extendable bolt, and the lever, which is designed as a tube, is attached to a pin connected to the sleeve 25. This has the advantage that the bulky lever can be easily removed in the event of transport. It is also expedient to provide clamping devices on the bench for stowing the lever when the bench is being transported.
  • the angle profiles 18 and 19 which are also preferably made of aluminum, serve to protect the edges of the bench. Both in the metal reinforcements 26 and in the angle profiles 18 and 19 there are plug-in holes 15 for inserting clamping cams 16. The holes and cams result in a variety of other clamping options.
  • a recess in the work surface 14 is designated, which is covered by a slide 20, for example a hinged cover could also be provided instead of the slide.
  • the coverable recess can, for example, advantageously be used for storing clamping cams 16.
  • Fig. 2 it can be seen that in the present embodiment, on the underside of the clamping jaw 1, clips 17 which can be swung out by 90 ° for fastening the clamping bench to a plate, in particular to a table top, on which the clamping bench with the clamping jaw 1 rests can be.
  • 28 denotes an additional spindle clamping device which is independent of the clamping device according to the invention and through which workpieces can be clamped with the aid of inserted clamping cams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
EP88118438A 1988-11-04 1988-11-04 Etabli de serrage Withdrawn EP0366830A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP88118438A EP0366830A1 (fr) 1988-11-04 1988-11-04 Etabli de serrage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88118438A EP0366830A1 (fr) 1988-11-04 1988-11-04 Etabli de serrage

Publications (1)

Publication Number Publication Date
EP0366830A1 true EP0366830A1 (fr) 1990-05-09

Family

ID=8199524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118438A Withdrawn EP0366830A1 (fr) 1988-11-04 1988-11-04 Etabli de serrage

Country Status (1)

Country Link
EP (1) EP0366830A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108179976A (zh) * 2017-12-27 2018-06-19 中国石油集团川庆钻探工程有限公司长庆钻井总公司 一种可调预紧力式扭矩调节器及调节方法
CN111376202A (zh) * 2020-05-09 2020-07-07 李珊珊 一种烘干风机用辅助安装设备
CN112296960A (zh) * 2020-10-23 2021-02-02 江西国丰电子科技有限公司 一种电子产品组装工作台

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375151C (de) * 1923-05-08 Ernst Fabian Spannstock
US1777789A (en) * 1929-04-01 1930-10-07 Harry B Droutz Adjustable vise for workbenches
FR898673A (fr) * 1943-10-09 1945-05-03 Crémaillère à travailler le bois
FR898674A (fr) * 1943-10-09 1945-05-03 Système automatique à serrer
US2949947A (en) * 1958-11-10 1960-08-23 John D Story Straight beam adjustable jaw clamp
US3336642A (en) * 1965-10-19 1967-08-22 American Drill Bushing Co Clamp with preset tension
EP0080960A1 (fr) * 1981-11-26 1983-06-08 BERNA, Philippe Jean Henri Dispositif à mâchoires orientables, adaptable sur tout support pour assurer de manière stable un serrage, un assemblage, un écartement ou un maintien en position de pièces de formes et dimensions quelconques
GB2190618A (en) * 1986-03-24 1987-11-25 Hills Industries Ltd Workbench and vice assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375151C (de) * 1923-05-08 Ernst Fabian Spannstock
US1777789A (en) * 1929-04-01 1930-10-07 Harry B Droutz Adjustable vise for workbenches
FR898673A (fr) * 1943-10-09 1945-05-03 Crémaillère à travailler le bois
FR898674A (fr) * 1943-10-09 1945-05-03 Système automatique à serrer
US2949947A (en) * 1958-11-10 1960-08-23 John D Story Straight beam adjustable jaw clamp
US3336642A (en) * 1965-10-19 1967-08-22 American Drill Bushing Co Clamp with preset tension
EP0080960A1 (fr) * 1981-11-26 1983-06-08 BERNA, Philippe Jean Henri Dispositif à mâchoires orientables, adaptable sur tout support pour assurer de manière stable un serrage, un assemblage, un écartement ou un maintien en position de pièces de formes et dimensions quelconques
GB2190618A (en) * 1986-03-24 1987-11-25 Hills Industries Ltd Workbench and vice assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108179976A (zh) * 2017-12-27 2018-06-19 中国石油集团川庆钻探工程有限公司长庆钻井总公司 一种可调预紧力式扭矩调节器及调节方法
CN111376202A (zh) * 2020-05-09 2020-07-07 李珊珊 一种烘干风机用辅助安装设备
CN112296960A (zh) * 2020-10-23 2021-02-02 江西国丰电子科技有限公司 一种电子产品组装工作台

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