EP0715931B1 - Dispositif de marquage pour pièces à tourner - Google Patents

Dispositif de marquage pour pièces à tourner Download PDF

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Publication number
EP0715931B1
EP0715931B1 EP95119201A EP95119201A EP0715931B1 EP 0715931 B1 EP0715931 B1 EP 0715931B1 EP 95119201 A EP95119201 A EP 95119201A EP 95119201 A EP95119201 A EP 95119201A EP 0715931 B1 EP0715931 B1 EP 0715931B1
Authority
EP
European Patent Office
Prior art keywords
wall parts
web
workpiece
face
punching tool
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
EP95119201A
Other languages
German (de)
English (en)
Other versions
EP0715931A1 (fr
Inventor
Gerhard Meibers
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
Application filed by Individual filed Critical Individual
Publication of EP0715931A1 publication Critical patent/EP0715931A1/fr
Application granted granted Critical
Publication of EP0715931B1 publication Critical patent/EP0715931B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C7/00—Wood-turning machines; Equipment therefor
    • B27C7/04—Devices for centering or chucking work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D5/00—Centre punches
    • 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
    • B25H7/00—Marking-out or setting-out work
    • B25H7/04—Devices, e.g. scribers, for marking

Definitions

  • Marking the center of a workpiece end face has so far been realized by drawing two lines, one from each corner of the Guide the workpiece face to the diagonally opposite corner. At the The workpiece was then grained at the intersection of these two lines. To the the workpiece is then clamped. The centric Round timber was marked with the help of a centering angle.
  • a device according to the preamble of claim 1 is known GB-A-142,381.
  • the invention has for its object to develop a device that is easy to manufacture and with the turning parts on End faces can be centrally grained.
  • the object is achieved in that four of the same Wall parts movably connected to one another by means of four hinge devices are that - viewed from the front - an isosceles parallelogram form, and centered on two opposite wall parts a bridge is movably mounted, a device for Carrying an iron (grains).
  • the invention makes it possible in a single operation Grain the workpiece centrally. A previous marking is not necessary.
  • the grains permanently resilient in the guide of the web held and thus enables marking with one hand, the other hand can hold the parallelogram. It is particularly advantageous To build wall parts from individual elements, so that for damaged or asymmetrically chamfered workpiece ends, insert the wall height can be enlarged by more elements. If you also run the footbridge for guiding the grain in the form of such an element, results a very inexpensive production of the entire component, since only one (Uniform) molded part is required.
  • FIG. 1 shows the design of a marking device for turning parts a workpiece 7.
  • the hinge-like connected wall parts 1,2,3,4 the workpiece 7 on the end face.
  • the workpiece 7 touches during the marking process the web 5, which is designed as a central parallel, and is supported by an impact (arrow) on the striking device 6 marked centrally by the tip of the grain iron 9 presses into the workpiece.
  • FIG. 2 shows a marking device in a front view, with a view of the wall part 2.
  • the web 5 is 1.3 on two opposite wall parts movably mounted.
  • the striking device 6 in unity with the grain iron 9 becomes in the geometric center of the parallelogram formed by the wall parts held.
  • the return spring 8 represents the impact device 6 and that Grain iron 9 after graining back to its original position.
  • FIG. 3 shows a marking device in a side view, with a view of the Wandte 1.
  • the movable connection between the wall parts is through a toothing of the wall parts and a bolt 10 each realized.
  • FIG. 4 shows the assembly of two wall parts 1, 2. It becomes clear that all wall parts are identical and interlock in the manner of a toothing.
  • FIG. 5 shows the marking device with a view perpendicular to the impact device 6, the device being shifted to the parallelogram.
  • FIG. 6 shows schematically the position of a workpiece end face that is to be grained centrally 71 with a rectangular shape. It is important to have two diagonally opposite corners of the workpiece at two corresponding opposite Corners of the parallelogram, so far from his square basic shape is sheared until this geometric condition is fulfilled.
  • FIG. 7 shows schematically the position of a workpiece end face that is to be grained centrally 72 with a round shape. A centering is given here if each side of the parallelogram is in contact with the workpiece.
  • Figures 8 to 14 show a particularly advantageous embodiment of the device, in which the wall parts 1 ', 2', 3 ', 4' each made up of several individual elements 11, 12, 13, 14, which are all identical in construction, just like the Bridge 5 '. These elements have recesses at their ends, which, seen from the longitudinal edge, extend over half the height and so one Allow elements to be interlocked. For this, elements are used during assembly Adjacent sides (e.g. 1 ', 2') each face each other mounted as illustrated in Fig. 11. Centering a workpiece with a rectangular 71 'or round cross section 72' is shown in FIGS. 13 and 14 shown for this embodiment and runs like that in Figures 6 and 7, procedures illustrated for the first embodiment.
  • Adjacent sides e.g. 1 ', 2'
  • Centering a workpiece with a rectangular 71 'or round cross section 72' is shown in FIGS. 13 and 14 shown for this embodiment and runs like that in Figures 6 and 7, procedures illustrated for the first embodiment.
  • the elements are preferably made of plastic, but can also be made of metal or wood.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Forging (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Turning (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Percussive Tools And Related Accessories (AREA)

Claims (7)

  1. Dispositif de marquage de centrage et de pointage de la face d'extrémité d'une pièce à usiner au tour à bois, quatre parties de parois identiques (1, 2, 3, 4; 1', 2', 3', 4') étant articulées entre elles à l'aide de quatre dispositifs à charnières de telle sorte qu'elles forment - en regardant les faces d'extrémité - un parallélogramme à branches égales, caractérisé en ce qu'une traverse (5; 5') est montée de manière articulée du côté de la face d'extrémité au milieu de deux parties de paroi opposées (1, 3; 1', 3'), laquelle présente en son centre un dispositif de guidage d'un pointeau de marquage (9; 9').
  2. Dispositif suivant la revendication 1, caractérisé en ce que le pointeau de marquage est pourvu d'un dispositif de frappe (6; 6').
  3. Dispositif suivant l'une des revendications 1 et 2, caractérisé en ce que le pointeau de marquage (9; 9') et le dispositif de frappe (6; 6') sont maintenus au milieu par la traverse et un ressort cylindrique (8; 8') entre la traverse et le dispositif de frappe ramène en position l'unité constituée par le pointeau de marquage et le dispositif de frappe.
  4. Dispositif suivant la revendication 1, caractérisé en ce que les parties de paroi sont engrenées l'une dans l'autre à proximité des charnières et un boulon (10; 10') réalise la liaison de charnière articulée à travers l'assemblage à dents.
  5. Dispositif suivant la revendication 1, caractérisé en ce que les parties de paroi du parallélogramme sont constituées respectivement de segments individuels (11, 12, 13, 14).
  6. Dispositif suivant la revendication 5, caractérisé en ce que plusieurs éléments (11, 12, 13, 14) sont montés l'un au-dessus de l'autre à une partie de paroi.
  7. Dispositif suivant la revendication 5 ou 6, caractérisé en ce que la traverse (5; 5') est également constituée d'un élément de ce type (11, 12, 13, 14).
EP95119201A 1994-12-07 1995-12-06 Dispositif de marquage pour pièces à tourner Expired - Lifetime EP0715931B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9419575U DE9419575U1 (de) 1994-12-07 1994-12-07 Markiervorrichtung für Drechselwerkstücke
DE9419575U 1994-12-07

Publications (2)

Publication Number Publication Date
EP0715931A1 EP0715931A1 (fr) 1996-06-12
EP0715931B1 true EP0715931B1 (fr) 1999-07-28

Family

ID=6917078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119201A Expired - Lifetime EP0715931B1 (fr) 1994-12-07 1995-12-06 Dispositif de marquage pour pièces à tourner

Country Status (3)

Country Link
EP (1) EP0715931B1 (fr)
AT (1) ATE182503T1 (fr)
DE (2) DE9419575U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634156C1 (de) * 1996-08-23 1998-02-19 Peter Martin Dufter Vorrichtung zum Handhaben einer Werkzeugmaschine
CN113459061A (zh) * 2021-07-19 2021-10-01 正茂集团有限责任公司 链环试样划线定位器及试样定位方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB142381A (en) * 1919-09-13 1920-05-06 Harold Wilson An improved device for use in centering and marking the centre of work
US1373367A (en) * 1920-07-19 1921-03-29 Summers Boyd Centering-square
US4084325A (en) * 1976-04-15 1978-04-18 Jones Jr Hiram Center finder

Also Published As

Publication number Publication date
ATE182503T1 (de) 1999-08-15
DE9419575U1 (de) 1995-03-16
DE59506463D1 (de) 1999-09-02
EP0715931A1 (fr) 1996-06-12

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