Nothing Special   »   [go: up one dir, main page]

EP0353008A3 - Fluid-pressure operated punch - Google Patents

Fluid-pressure operated punch Download PDF

Info

Publication number
EP0353008A3
EP0353008A3 EP19890307512 EP89307512A EP0353008A3 EP 0353008 A3 EP0353008 A3 EP 0353008A3 EP 19890307512 EP19890307512 EP 19890307512 EP 89307512 A EP89307512 A EP 89307512A EP 0353008 A3 EP0353008 A3 EP 0353008A3
Authority
EP
European Patent Office
Prior art keywords
fluid
punch
piston head
pressure operated
punch support
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Withdrawn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
EP19890307512
Other languages
German (de)
French (fr)
Other versions
EP0353008A2 (en
Inventor
Roland T. Gerhart
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.)
Connell LP
Original Assignee
Connell LP
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 Connell LP filed Critical Connell LP
Publication of EP0353008A2 publication Critical patent/EP0353008A2/en
Publication of EP0353008A3 publication Critical patent/EP0353008A3/en
Withdrawn legal-status Critical Current

Links

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
    • B21D28/002—Drive of the tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Closures For Containers (AREA)

Abstract

A fluid-pressure operated punching apparatus (10) includes an elongated substantially cylindrical punch support assembly (31) slidably disposed for reciprocatory, lengthwise sliding movement in a cylindrical opening (13) in a body (11). The punch support assembly (31) has a piston head (36) at the rearward end thereof and a piston rod (35) extending lengthwise forwardly from the piston head (34). A punch retainer (33) is mounted on the forward end of the piston rod (35) and carries a punch (78). Annular sealing means (50) are provided on the piston head for sealingly engaging the internal surface defining the cylindrical opening (13) of the elongated body. A fluid pressure supply port (94) is formed in the body (11) for supplying pressure fluid to move the punch support (31) assembly toward the forward end of the body (11).
EP19890307512 1988-07-25 1989-07-24 Fluid-pressure operated punch Withdrawn EP0353008A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22390888A 1988-07-25 1988-07-25
US223908 1988-07-25

Publications (2)

Publication Number Publication Date
EP0353008A2 EP0353008A2 (en) 1990-01-31
EP0353008A3 true EP0353008A3 (en) 1990-10-17

Family

ID=22838478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890307512 Withdrawn EP0353008A3 (en) 1988-07-25 1989-07-24 Fluid-pressure operated punch

Country Status (1)

Country Link
EP (1) EP0353008A3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR822223A (en) * 1936-05-25 1937-12-23 Mid West Production Engineerin Hydraulic punching machine
GB1091586A (en) * 1965-09-06 1967-11-22 Dro Engineering Co Di Adjustable pierce unit
GB1594258A (en) * 1978-05-26 1981-07-30 Gullick Dobson Ltd Pressure fluid operated tool
US4471680A (en) * 1982-02-01 1984-09-18 Iem Ltd. Cam slide unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR822223A (en) * 1936-05-25 1937-12-23 Mid West Production Engineerin Hydraulic punching machine
GB1091586A (en) * 1965-09-06 1967-11-22 Dro Engineering Co Di Adjustable pierce unit
GB1594258A (en) * 1978-05-26 1981-07-30 Gullick Dobson Ltd Pressure fluid operated tool
US4471680A (en) * 1982-02-01 1984-09-18 Iem Ltd. Cam slide unit

Also Published As

Publication number Publication date
EP0353008A2 (en) 1990-01-31

Similar Documents

Publication Publication Date Title
AU528020B2 (en) Air replenishing system
AU5828396A (en) A fastener installation tool
GB2278410A (en) A hydraulic master cylinder and reservoir assembly
ES8401575A1 (en) Reciprocatory piston and cylinder machine.
EP1367217A3 (en) Downhole apparatus
EP0227309A3 (en) Boring and cutting tool
MX9701580A (en) Wiping unit for ram of bodymaker.
EP0962662A3 (en) Pneumatic cylinder and control valve therefor
ATE108102T1 (en) DEVICE FOR ADJUSTING THE FORCE OF THE DOWN-HOLDERS OF A PRESS.
ZA934136B (en) Hammer device
DE3561503D1 (en) Valve assembly
AU693358B2 (en) Hydraulic bolt tensioner
ES8406327A1 (en) Brake actuation assembly.
CA2024432A1 (en) Means for receiving and subsequently emptying hydraulic fluid from a hydraulic system
CA2180749A1 (en) Liquid spring for punch press
SE8205029D0 (en) A HYDRAULIC RECIPROCATING DEVICE
EP0353008A3 (en) Fluid-pressure operated punch
MX9701339A (en) Wiping unit for ram of bodymaker.
GB868816A (en) Improvements in or relating to machine tool feed apparatus
ATE64128T1 (en) PRESSURE REGULATION VALVE FOR THE SECOND REDUCTION STAGE OF AN AIR BREATHING DEVICE.
JPS5510109A (en) Booster
ES2032261A6 (en) Oleopneumatic intensifier
JPH0256903U (en)
GB2240154A (en) Pneumatic spring
JPS5615945A (en) Jig

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910418