FR2233111A1 - Piercing or embossing machine - uses hydraulic fluid to move punch and die against workpiece before piercing - Google Patents

Piercing or embossing machine - uses hydraulic fluid to move punch and die against workpiece before piercing

Info

Publication number
FR2233111A1
FR2233111A1 FR7322593A FR7322593A FR2233111A1 FR 2233111 A1 FR2233111 A1 FR 2233111A1 FR 7322593 A FR7322593 A FR 7322593A FR 7322593 A FR7322593 A FR 7322593A FR 2233111 A1 FR2233111 A1 FR 2233111A1
Authority
FR
France
Prior art keywords
piercing
punch
workpiece
hydraulic fluid
cylinder
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
FR7322593A
Other languages
French (fr)
Other versions
FR2233111B1 (en
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.)
LYOTARD P ETS
Original Assignee
LYOTARD P ETS
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 LYOTARD P ETS filed Critical LYOTARD P ETS
Priority to FR7322593A priority Critical patent/FR2233111A1/en
Publication of FR2233111A1 publication Critical patent/FR2233111A1/en
Application granted granted Critical
Publication of FR2233111B1 publication Critical patent/FR2233111B1/fr
Granted 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
    • 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

Abstract

A cylinder can slide in the direction of its axis. Inside the cylinder is a double action position, on the end of which the punch is fixed. Hydraulic fluid pumped to one side of the piston moves the punch against the workpiece. With the punch stopped by the workpiece, the pressure then pushes the cylinder in the opposite direction, moving the die against the other side of the workpiece. Increase of pressure performs the actual piercing operation. The oil flow is then changed to the other side of the piston, withdrawing the punch from the workpiece. The piston moves backwards until it reaches an adjustable stop. The pressure then moves the cylinder, disengaging the die from the workpiece.
FR7322593A 1973-06-18 1973-06-18 Piercing or embossing machine - uses hydraulic fluid to move punch and die against workpiece before piercing Granted FR2233111A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7322593A FR2233111A1 (en) 1973-06-18 1973-06-18 Piercing or embossing machine - uses hydraulic fluid to move punch and die against workpiece before piercing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7322593A FR2233111A1 (en) 1973-06-18 1973-06-18 Piercing or embossing machine - uses hydraulic fluid to move punch and die against workpiece before piercing

Publications (2)

Publication Number Publication Date
FR2233111A1 true FR2233111A1 (en) 1975-01-10
FR2233111B1 FR2233111B1 (en) 1979-03-23

Family

ID=9121313

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7322593A Granted FR2233111A1 (en) 1973-06-18 1973-06-18 Piercing or embossing machine - uses hydraulic fluid to move punch and die against workpiece before piercing

Country Status (1)

Country Link
FR (1) FR2233111A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478529A1 (en) * 1980-03-21 1981-09-25 Juven Andre Vertically operated hydraulic stamper - has ram rod guided on four sides and having movable work table below
EP1600283A1 (en) 2004-05-29 2005-11-30 Reiplinger, Roswitha Cutting press, in particular for trimming and end-finishing strips of window fittings
CN111922193A (en) * 2020-08-19 2020-11-13 赵淑英 Punching and blanking die

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2177131A (en) * 1936-07-28 1939-10-24 Ternstedt Mfg Co Piercing machine or the like
US2758652A (en) * 1953-12-07 1956-08-14 Danly Mach Specialties Inc Hydraulic punch and stripper
US2774426A (en) * 1953-11-30 1956-12-18 Kelsey Hayes Wheel Co Piercing machine
US2915164A (en) * 1954-10-11 1959-12-01 Kelsey Hayes Co Piercing and chamfering machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2177131A (en) * 1936-07-28 1939-10-24 Ternstedt Mfg Co Piercing machine or the like
US2774426A (en) * 1953-11-30 1956-12-18 Kelsey Hayes Wheel Co Piercing machine
US2758652A (en) * 1953-12-07 1956-08-14 Danly Mach Specialties Inc Hydraulic punch and stripper
US2915164A (en) * 1954-10-11 1959-12-01 Kelsey Hayes Co Piercing and chamfering machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478529A1 (en) * 1980-03-21 1981-09-25 Juven Andre Vertically operated hydraulic stamper - has ram rod guided on four sides and having movable work table below
EP1600283A1 (en) 2004-05-29 2005-11-30 Reiplinger, Roswitha Cutting press, in particular for trimming and end-finishing strips of window fittings
CN111922193A (en) * 2020-08-19 2020-11-13 赵淑英 Punching and blanking die

Also Published As

Publication number Publication date
FR2233111B1 (en) 1979-03-23

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