US3817070A - Machine for non-cutting forming of metals - Google Patents

Machine for non-cutting forming of metals Download PDF

Info

Publication number
US3817070A
US3817070A US00294718A US29471872A US3817070A US 3817070 A US3817070 A US 3817070A US 00294718 A US00294718 A US 00294718A US 29471872 A US29471872 A US 29471872A US 3817070 A US3817070 A US 3817070A
Authority
US
United States
Prior art keywords
feeder
hydraulic
machine according
machine
spindle
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
US00294718A
Other languages
English (en)
Inventor
E Ribback
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
Application granted granted Critical
Publication of US3817070A publication Critical patent/US3817070A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/10—Manipulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools

Definitions

  • An object of the invention is the elimination of such recoil during hammering or upsetting metal forming as much as possible, i.e., recoil acting in opposite direction to the material feed. Accordingly, the present invention provides a rotatable clamping means mounted on the machine frame, and coordinated with the hammer machine, which is driven alternately toward the tools by a hydraulically and then a mechanically driven feed mechanism.
  • clamping means 4 is coordinated with the hammer machine 1, 2, on the machine frame 3 and is driven alternately toward the tools by a hydraulically and mechanically operating feed mechanism.
  • clamping means 4 which is driven by the hydraulically and alternately mechanically working feed mechanism, comprises a clamping device 5 which holds the material to be fed, and is equipped with a motor-driven rotating device 6.
  • the mechanically acting feed mechanism in its interior, is designed as a hydraulically acting feedmechanism.
  • the mechanically acting feed mechanism consists of a hollow, non-revolving, axially movable spindle 7 having a threaded exterior portion which engages the internal threads a rotatably driven and frontally supported adjustment collar 8.
  • This adjustment collar 8 in its housing 9, is frontally supported by thrust bearing 10 and rotatably mounted thereon.
  • the rotary drive for the adjustment collar 8 is derived from a motor-driven chain drive 11.
  • the plunger or piston 12 of a tubular piston rod 13 slides along the cylindrical interior wall of the hollow threaded spindle 7.
  • the bar or rod stock is guided towards the hammer unit 1,2 by means of the Y tubular rod.
  • the hydraulically acting feed mechanism 12,13 is disconnected and blocked in the cylindrical threaded spindle 7, as well as rigidly connected with the mechanically acting feed device 7 11 which, at that moment is engaged.
  • This causes the mechanically acting mechanism 7 11 to axially displace the rotatably driven clamping means 4 6,'over the hydraulic drive 7,12,13, against the hammering device 1,2.
  • a switch mechanism, for the disento flow into spindle cylinder 7, thus pushing the piston gagement of the hydraulically acting feed mechanism 7,12,13 whereby a blocking effect is attained and its rigid connection to the engaged mechanically acting feed mechanism7 1l, is depicted schematically in the drawing.
  • duct 15 In the hollow spindle cylinder 7, at both sides of the plunger 12, there are feed and drain ducts 14 and 15 for a hydraulic pressure agent, which lead towards a pump 16.
  • Pump 16 is reversible to provide alternate generation of a high or low pressure, i.e., a superatmospheric pressure and a vacuum.
  • duct 15 In duct 15 there is a spring-loaded and, manually operated valve 17 which blocks the flow-back of the pressure fluid from spindlecylinder 7 to pump 16.
  • a branch duct 18 leads from duct 15 to a r'eversible electric switch 19 for reversible motor drive 22 for rotary drive 8 11 of adjustment collar 8, and its housing 9 is rigidly mounted on the machine frame.
  • Pump 16 isswitched to generate pressure. This causes the valve to open and pressure fluid or plunger forward, whereby hollow piston rod 13, in rapid motion, moves or transports clamp carrier means 4 into operational position in front of hammermachine 1,2.
  • valve 17- is locked in its open position and pump 16 is reversed so as to generate low pressure (partial vac uum).
  • the partial vacuum generated via opened duct 15 in pressure chamber 21 and branch duct 18 causes hydraulically acting feed mechanism 12,13 to return to its initial position and to reset electric switch 19, so that mechanically acting feed mechanism 7 11 and 22 moves back to its starting position.
  • a conventional friction or similar clutch is provided between clamping device 4,5 and its rotary drive 6. This guarantees that the quality of the-metal forming during rotary material feed is not impaired.
  • a clamping means for gripping said metal stock and coupled to a combination hydraulic and mechanical drive mechanism adapted to provide reciprocating motion of said clamping means relative to said forging device and comprising a screw spindle feeder, and
  • a hydraulic feeder capable of rapid motion and provided with a blocking means for blocking the hydraulic feeding action and rigidly connecting said screw spindle feeder to said clamping means at the'end of the forward stroke of said hydraulic feeder.
  • a machine according to claim 1 in which movable elements of said hydraulic feeder are located inside said screw spindle feeder.
  • said screw spindle feeder comprises anonrotatable, axially displaceable spindle having an external thread engaging an internal thread of a rotatable driving and adjusting collar mounted in a stationary housing.
  • a machine according. to claim 3in which said clamping means is connected to a piston rod of a hydraulic piston slidable mounted within a hollow spindle of said screw spindle feeder.
  • a machine according to claim 1 in which a motor drive means is provided for rotating said clamp means.
  • clamp means is connected to a piston rod attached to a hydraulic piston slidably mounted inside a nonrotatable hollow spindle of said screw spindle feeder and said spindle is axially displaceable by means of an external thread thereon engaging the internal thread of a driving and adjusting collar supported within a stationary housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
US00294718A 1971-10-05 1972-10-03 Machine for non-cutting forming of metals Expired - Lifetime US3817070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712149577 DE2149577A1 (de) 1971-10-05 1971-10-05 Maschine zur spanlosen formgebung von metallen

Publications (1)

Publication Number Publication Date
US3817070A true US3817070A (en) 1974-06-18

Family

ID=5821479

Family Applications (1)

Application Number Title Priority Date Filing Date
US00294718A Expired - Lifetime US3817070A (en) 1971-10-05 1972-10-03 Machine for non-cutting forming of metals

Country Status (9)

Country Link
US (1) US3817070A (enExample)
JP (1) JPS4872772A (enExample)
AT (1) AT320381B (enExample)
CA (1) CA967792A (enExample)
DE (1) DE2149577A1 (enExample)
ES (1) ES407289A1 (enExample)
FR (1) FR2156034B3 (enExample)
GB (1) GB1395732A (enExample)
LU (1) LU66214A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157026A (en) * 1977-04-01 1979-06-05 Gfm Gesellschaft Fur Fertigungstechnik Und Maschinenbau Aktiengesellschaft Swaging machine for swaging large tubes
US5732588A (en) * 1994-12-24 1998-03-31 Pahnke Engineering Gmbh & Co. K.G. Double press

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US664435A (en) * 1900-09-14 1900-12-25 Charles E Roberts Spoke-swaging machine.
US774087A (en) * 1902-11-21 1904-11-01 Richard Laybourne Automatic mechanism for use in step-by-step rolling of metal tubes.
US1767810A (en) * 1927-09-24 1930-06-24 Edna L Place Feeding mechanism for tube mills

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US664435A (en) * 1900-09-14 1900-12-25 Charles E Roberts Spoke-swaging machine.
US774087A (en) * 1902-11-21 1904-11-01 Richard Laybourne Automatic mechanism for use in step-by-step rolling of metal tubes.
US1767810A (en) * 1927-09-24 1930-06-24 Edna L Place Feeding mechanism for tube mills

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157026A (en) * 1977-04-01 1979-06-05 Gfm Gesellschaft Fur Fertigungstechnik Und Maschinenbau Aktiengesellschaft Swaging machine for swaging large tubes
US5732588A (en) * 1994-12-24 1998-03-31 Pahnke Engineering Gmbh & Co. K.G. Double press

Also Published As

Publication number Publication date
ES407289A1 (es) 1975-10-16
LU66214A1 (enExample) 1973-01-23
GB1395732A (en) 1975-05-29
FR2156034A1 (enExample) 1973-05-25
FR2156034B3 (enExample) 1975-11-07
JPS4872772A (enExample) 1973-10-01
DE2149577A1 (de) 1973-04-12
CA967792A (en) 1975-05-20
AT320381B (de) 1975-02-10

Similar Documents

Publication Publication Date Title
US4657088A (en) Rotary hammer driving mechanism
US5873418A (en) Percussive tool having a reduced impact at the start of percussive operation
US4625597A (en) Screw driving apparatus
US3114421A (en) Pneumatic system for a rotary hammer device
US3141509A (en) Rotary tool with power feed
US2674098A (en) Portable power-driven tool for drilling and like operations
CH640305A5 (de) Bohrhammer.
US3990351A (en) Pneumatic impact device
JPS5921691B2 (ja) 衝撃プレス
US3299783A (en) Fluid operated machine tool spindle
US4366868A (en) Rock drill apparatus
JPS5813312B2 (ja) 電動空気圧ハンマ−
US4840237A (en) Ram boring implement
US3430709A (en) Motion transmission mechanism for impact tools
US3817070A (en) Machine for non-cutting forming of metals
US3552238A (en) Structure for positively feeding tools such as drills and the like
US3411385A (en) Positive feeding structure
US6619670B2 (en) Chuck unit for automatic machine tools, designed to perform both power tasks and finishing work
US3452572A (en) High-velocity shearing machine
US4346769A (en) Percussive tool drive linkage
JPS6451210A (en) Clamping device in lathe with chuck
GB1227277A (enExample)
US3342087A (en) Drilling device
US2957368A (en) Drive mechanism for machine tool carriages
GB2099748A (en) A hammer drill