EP0160216A1 - Outil séquentiel - Google Patents

Outil séquentiel Download PDF

Info

Publication number
EP0160216A1
EP0160216A1 EP85103657A EP85103657A EP0160216A1 EP 0160216 A1 EP0160216 A1 EP 0160216A1 EP 85103657 A EP85103657 A EP 85103657A EP 85103657 A EP85103657 A EP 85103657A EP 0160216 A1 EP0160216 A1 EP 0160216A1
Authority
EP
European Patent Office
Prior art keywords
tool
attached
cone
tool according
pieces
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.)
Granted
Application number
EP85103657A
Other languages
German (de)
English (en)
Other versions
EP0160216B1 (fr
Inventor
Ernst Haller
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.)
Rohde and Schwarz GmbH and Co KG
Original Assignee
Rohde and Schwarz 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 Rohde and Schwarz GmbH and Co KG filed Critical Rohde and Schwarz GmbH and Co KG
Priority to AT85103657T priority Critical patent/ATE25600T1/de
Publication of EP0160216A1 publication Critical patent/EP0160216A1/fr
Application granted granted Critical
Publication of EP0160216B1 publication Critical patent/EP0160216B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass

Definitions

  • the invention relates to a follow-up tool consisting of two holding plates which can be moved towards one another by means of a press.
  • Follow-on tools of this type are used for punching sheet metal parts from a flat material that is continuously inserted between the plates; in this case, for example, the corresponding punches with associated wipers are attached to the upper holding plate that can be lowered via the press ram, and the associated dies are attached to the opposite lower holding plate.
  • the individual stamping punches can, for example, be brought individually into the working position by means of a suitable control mechanism, so that the most varied stampings can be carried out from a continuously fed material strip in the working gap of the tool.
  • Follow-on tools of this type also serve to bend pre-punched small parts; it can also be used to emboss correspondingly prefabricated sheet metal parts; in the latter cases, corresponding bending or stamping tools are attached to the mutually movable holding plates of the follow-on tool.
  • the cone pieces are simple round cone arbor parts that are attached using screws and fitting bolts the opposite holding plates are attached and it is possible to achieve additional effective sound absorption by simply placing sleeve parts made of elastic material over these cone pieces.
  • the soundproofing sleeves made of rubber, for example, are dimensioned so that their end faces come into contact with the opposing holding plates or the cone pieces attached there before the conical pieces that fit into one another are finally opened, thus shielding the cone surfaces that collide against each other.
  • the sleeve is then axially compressed a little and the sound absorption is further increased by firmly clamping the sleeve between the holding plates until finally the conical surfaces of the conical pieces fitting into one another hit one another.
  • a follow-on tool according to the invention also has the advantage that the tools fitted to the holding plates are guided much more precisely to one another by the precisely fitting conical pieces than is possible with the conventional known column guides installed between the holding plates.
  • the punching dies used do not wear out so quickly; in practice it has been shown that the lifespan of the punching tools in a follow-on tool according to the invention can be increased more than five times, as a result Punching times of a press working with the tool according to the invention improved.
  • the noise reduction measure according to the invention can be very easily and cheaply attached to all customary follow-up tools, if necessary, by appropriate dimensioning of the cone pieces that collide with one another, it is only necessary to ensure that when the follow-on tool is completely closed (completely lowered upper holding plate) only the cone pieces hit each other and no others Parts of the holding plates, that is, for example in the case of a punching tool, also no longer the wipers with the guide strips of the die or the surface of the workpiece.
  • the figure shows the side view of a punching tool according to the invention, partially in section; the left half shows the fully closed tool, the right half schematically shows the open tool.
  • the tool consists of a lower holding plate 1 and an opposite upper holding plate 2.
  • the two rectangular holding plates 1 and 2 are guided over column guides 3, which are attached, for example, to the four corners via suitable guides.
  • a punching tool of this type can be used in a conventional high-speed press, wherein the upper holding plate 2 can be lowered from the upper position shown on the right into the lower position shown on the left by the press ram.
  • the punch 4 and the associated wipers 5 are attached to the upper plate 2, and the associated dies 6 are attached to the opposite holding plate 1.
  • the punches can be used in a known manner by control devices, not shown in detail, to effect ge be brought.
  • the workpiece 7 is guided in the working gap between guide strips 8.
  • cone pieces 10 are attached with a cone projecting upwards
  • cone pieces 11 are attached with a matching cone recess.
  • two such conical piece pairs 10. 11 are attached on each side of the working gap, so that a total of four conical pieces per plate are preferably provided directly next to the working gap and approximately close to the guide columns 3.
  • the cone pieces 10 and 11 are fastened to the plates 1 and 2 by screws and dowel pins, not shown. They are exactly aligned with each other.
  • Their axial length is selected by precise grinding so that when the upper plate 2 is completely lowered and thus when the cone is fully inserted, only these conical surfaces hit each other, but otherwise a small distance of, for example, between all parts of the upper plate 2 and lower plate 1 a few tenths of a millimeter, that is, for example, a small distance between the lower end face of the scraper 5 and the surface of the workpiece 7 or the surface of the lateral guide strips 8.
  • a sleeve 12 made of rubber or another suitable elastic plastic material is placed on the lower cone piece 10, into which the upper cone piece 11 can be immersed with play.
  • the axial length of this rubber sleeve 12 is selected so that its upper end face 13 shortly before opening gene of the cone 10 in the cone recess 11 on the Untersei- .te of the upper plate 2 comes to rest, that is before the opening of the two cone surfaces they are shielded via the rubber sleeve 12 to the outside.
  • the sleeve 12 is slightly compressed in the axial direction and is thus firmly clamped between the plates 1 and 2, and this results in very effective sound absorption for the conical surfaces which strike one another.
  • a further protective sleeve 14 for example made of aluminum, is preferably attached to the upper plate 12 and surrounds the rubber sleeve 12 telescopically.
  • the axial length of this protective sleeve 14 is selected such that it just slightly overlaps the upper edge 13 of the rubber sleeve 12 when the tool is fully open and thus prevents dirt from getting into the space of the cone pieces.
  • This additional protective sleeve could also consist of an elastically flexible material and thus also contribute to noise reduction, in this case the axial length choose this protective sleeve 14 so long that it also bears on the opposite holding plate 1 when the tool is closed.
  • the KegelstQcke 10 and 11 are preferably screwed with the interposition of a thin damping disc 15 made of hard plastic material on the plates 1,2, as indicated on the right side of the drawing for the cone piece 10.
  • These plastic discs 15 dampen the transmission of vibrations from the cone pieces to the plates and thus contribute to further noise reduction. They are preferably very thin and hard, so that the required accuracy of distance between the cone pieces 10 and 11 can be maintained.
  • the edge of the rubber sleeve 12 either engages around this additional disk 15 or sits on it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Details Of Cutting Devices (AREA)
  • Jigs For Machine Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP85103657A 1984-03-31 1985-03-27 Outil séquentiel Expired EP0160216B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103657T ATE25600T1 (de) 1984-03-31 1985-03-27 Folgewerkzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843412119 DE3412119A1 (de) 1984-03-31 1984-03-31 Folgewerkzeug
DE3412119 1984-03-31

Publications (2)

Publication Number Publication Date
EP0160216A1 true EP0160216A1 (fr) 1985-11-06
EP0160216B1 EP0160216B1 (fr) 1987-03-04

Family

ID=6232282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103657A Expired EP0160216B1 (fr) 1984-03-31 1985-03-27 Outil séquentiel

Country Status (3)

Country Link
EP (1) EP0160216B1 (fr)
AT (1) ATE25600T1 (fr)
DE (2) DE3412119A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2642651A1 (de) * 1976-09-22 1978-03-30 Siemens Ag Praezisions-stanzwerkzeug
US4129054A (en) * 1976-01-20 1978-12-12 Ludwig Boschert, Maschinen- Und Apparatebau Gmbh & Co. Kg Punching press
FR2411649A2 (fr) * 1977-12-14 1979-07-13 Malabard Andre Dispositif permettant de sectionner avec precision le contour d'une piece
FR2487703A1 (fr) * 1980-07-31 1982-02-05 Cecchi Gerard Machine a poinconner perfectionnee

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129054A (en) * 1976-01-20 1978-12-12 Ludwig Boschert, Maschinen- Und Apparatebau Gmbh & Co. Kg Punching press
DE2642651A1 (de) * 1976-09-22 1978-03-30 Siemens Ag Praezisions-stanzwerkzeug
FR2411649A2 (fr) * 1977-12-14 1979-07-13 Malabard Andre Dispositif permettant de sectionner avec precision le contour d'une piece
FR2487703A1 (fr) * 1980-07-31 1982-02-05 Cecchi Gerard Machine a poinconner perfectionnee

Also Published As

Publication number Publication date
EP0160216B1 (fr) 1987-03-04
DE3412119A1 (de) 1985-10-10
ATE25600T1 (de) 1987-03-15
DE3560074D1 (en) 1987-04-09

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