EP0448508A1 - Vorrichtung zum Stanzen - Google Patents

Vorrichtung zum Stanzen Download PDF

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Publication number
EP0448508A1
EP0448508A1 EP91810106A EP91810106A EP0448508A1 EP 0448508 A1 EP0448508 A1 EP 0448508A1 EP 91810106 A EP91810106 A EP 91810106A EP 91810106 A EP91810106 A EP 91810106A EP 0448508 A1 EP0448508 A1 EP 0448508A1
Authority
EP
European Patent Office
Prior art keywords
block
recess
eccentric shaft
mouth
eccentric
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Withdrawn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
EP91810106A
Other languages
German (de)
English (en)
French (fr)
Inventor
Dieter Eich
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 EP0448508A1 publication Critical patent/EP0448508A1/de
Withdrawn legal-status Critical Current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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/14—Crank and pin means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
    • B26F1/34—Hand-held perforating or punching apparatus, e.g. awls power actuated

Definitions

  • the present invention relates to a device for punching a hole in a standard rail for control panel construction.
  • control panels we mean both actual control panels and control cabinets.
  • standard rails are attached to the cabinet during the final assembly, which are used to fasten terminal blocks, the wiring or cables to be attached, and to fasten devices, switches or instruments.
  • Only in the case of larger series of control panels or control cabinets planned on the drawing board are the mounting holes punched in the rails on a specially designed punch. This is not worthwhile for small series or even for one-off productions. In In this frequently occurring case, the fitter cuts the required length from the rod and drills the necessary holes.
  • Standard rails are either made of aluminum or, in rare cases, iron, and the control cabinets are usually made of aluminum profiles and sheet iron. If you have to work on standard rails, it can be assumed that the holes for fastening are drilled with a drill, which often results in poorly drilled holes and, what is worse, a lot of dangerous chips. Chips in a control cabinet are absolutely undesirable because they can cause faults at a later point in time.
  • Drilling takes a lot of time. Measurements have shown that drilling, punching the hole so that the hole is in the right place, removing brows and then removing chips quickly takes up to 3 minutes per hole. In many cases, this drilling process is also a nuisance to the worker.
  • the invention has for its object to provide a compact portable, simply constructed and inexpensive to manufacture device for punching a hole in a standard rail for panel building, with a drive motor and an eccentric shaft, the eccentric of which is connected to the punch by means of a connecting rod.
  • This construction of the device which is conventional per se, is distinguished according to the invention by the special features mentioned in the characterizing part of the patent claim.
  • Figure 1 shows the solid block 1 with the recess 10 which merges into the mouth 11.
  • a through hole 12 is made for the eccentric shaft and in the lower projecting part 14 of the mouth there is a through hole 13 for the removal of the punched-out rondelles.
  • a groove 15 is provided for fastening a holder for the drive motor.
  • an eccentric shaft 2 is rotatably mounted, which is turned eccentrically at its front end, so that this pin forms the actual eccentric 21.
  • the eccentric shaft carries a cam ring 22 which is operatively connected to the switch S attached to the block 1.
  • a central bore is made, into which the drive shaft 31 of the geared motor 3 engages.
  • the gear motor itself is held by means of a holder 32 on the back of block 1.
  • the upper end of the connecting rod 4 is mounted on the eccentric pin 21.
  • the connecting rod has a through hole 41 at the top and at the bottom a through hole 42 which is partially open in the lower part.
  • a pin 43 is mounted in this latter hole and is connected to a punch 5.
  • the width of the gap at the partially open through bore 42 is larger than the diameter of the punch 5.
  • the recess 10, in which the movable parts are accommodated, is covered at the front by a cover plate 6.
  • This plate extends over the upper part of the mouth and thus forms a protection against accidental contact.
  • FIG. 2 shows the guide piece 51, the area 54 of which serves as centering and holding down for the profile to be punched.
  • a threaded bore 61 is made, into which a stop pin 62 can be screwed. Stop pins of different lengths are located on the side of the block. A stop 63 is also attached to the rear of the mouth.
  • Figure 4 shows the complete punching device in view.
  • the drive unit with block 1 protrudes, which is partially installed in the housing 7, so that the geared motor 3 is not visible.
  • a rail 71 running in the direction of the mouth opening, on which a longitudinal stop 72 is held so that it can be moved and locked.
  • a push button 73, a fuse 74 and a counter 75 are installed in the front panel.
  • the whole device is relatively light and forms a compact portable unit.
  • the geared motor can be, for example, a windshield wiper motor, as a result of which the device can operate without compressed air, in contrast to known small presses.
  • the device can thus be used wherever electrical energy is available.
  • the motor 3 is switched on via a foot switch or by touching the stop 72 and the eccentric shaft makes one revolution, the cam ring 22 being the switch S actuates, which switches off the motor, possibly with the interposition of a relay or an electronic control.
  • the counter counts the number of switch-on processes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Punching Or Piercing (AREA)
EP91810106A 1990-03-19 1991-02-15 Vorrichtung zum Stanzen Withdrawn EP0448508A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH88790A CH681785A5 (it) 1990-03-19 1990-03-19
CH887/90 1990-03-19

Publications (1)

Publication Number Publication Date
EP0448508A1 true EP0448508A1 (de) 1991-09-25

Family

ID=4197496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810106A Withdrawn EP0448508A1 (de) 1990-03-19 1991-02-15 Vorrichtung zum Stanzen

Country Status (2)

Country Link
EP (1) EP0448508A1 (it)
CH (1) CH681785A5 (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074320A1 (de) * 1999-07-27 2001-02-07 ERNST GROB AG, Kaltwalzmaschinen Stanz-und Prägemaschine
CN105983992A (zh) * 2016-07-19 2016-10-05 伍建国 内增高垫底制作工艺
CN106003244A (zh) * 2016-07-19 2016-10-12 伍建国 内增高垫底冲切机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924330A (en) * 1973-08-04 1975-12-09 Nitto Kohki Co Hydraulically operated working machine
CH588313A5 (it) * 1973-04-17 1977-05-31 Harcuba Siegfried
EP0010685B1 (en) * 1978-10-18 1983-03-16 Card-O-Matic Pty Ltd. Punch and winding machine
US4731929A (en) * 1986-08-14 1988-03-22 Butler Manufacturing Company Portable hydraulic punch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH588313A5 (it) * 1973-04-17 1977-05-31 Harcuba Siegfried
US3924330A (en) * 1973-08-04 1975-12-09 Nitto Kohki Co Hydraulically operated working machine
EP0010685B1 (en) * 1978-10-18 1983-03-16 Card-O-Matic Pty Ltd. Punch and winding machine
US4731929A (en) * 1986-08-14 1988-03-22 Butler Manufacturing Company Portable hydraulic punch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074320A1 (de) * 1999-07-27 2001-02-07 ERNST GROB AG, Kaltwalzmaschinen Stanz-und Prägemaschine
US6345526B1 (en) 1999-07-27 2002-02-12 Ernst Grob Ag Punching and stamping machine and method of making parts using same
CN105983992A (zh) * 2016-07-19 2016-10-05 伍建国 内增高垫底制作工艺
CN106003244A (zh) * 2016-07-19 2016-10-12 伍建国 内增高垫底冲切机
CN106003244B (zh) * 2016-07-19 2017-09-22 伍建国 内增高垫底冲切机

Also Published As

Publication number Publication date
CH681785A5 (it) 1993-05-28

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