US1677471A - Electrically-driven forging press - Google Patents

Electrically-driven forging press Download PDF

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Publication number
US1677471A
US1677471A US108807A US10880726A US1677471A US 1677471 A US1677471 A US 1677471A US 108807 A US108807 A US 108807A US 10880726 A US10880726 A US 10880726A US 1677471 A US1677471 A US 1677471A
Authority
US
United States
Prior art keywords
shaft
lever
cylinder
electrically
forging press
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
US108807A
Other languages
English (en)
Inventor
Friederici August
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.)
MAX FRIEDERICI
Original Assignee
MAX FRIEDERICI
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 MAX FRIEDERICI filed Critical MAX FRIEDERICI
Application granted granted Critical
Publication of US1677471A publication Critical patent/US1677471A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/02—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by lever mechanism
    • B30B1/06—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by lever mechanism operated by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/281—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices
    • B30B15/284—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices releasing fluid from a fluid chamber subjected to overload pressure

Definitions

  • retin i @Ear .Ferca Asensi* FRIEDERICI or GOLOGNE-MULHEIM, GERMANY, Assrcrivioav ro IMAX FRIEDERICI, or STEUBENVILLE, omo.
  • rl ⁇ hisinvention relates to forging presses and more particularly toy electrically op'erated forging presses, and has for one of its n objects the provision of a press of this class withl novel adjusting means whereby the stroke of ther forging ram may be adjusted at will and during the operation of the press.
  • Another object is to provide -a novel combination of elements for 'preventing the overchalrging of the press.
  • Another object is to provide a press hav- ⁇ ing the novel design, construction and combination ⁇ of" partsl hereinafter described.
  • Fig. "1 illustratesthe side v-iew of the forging press
  • Fig. 2 the front view
  • Fig. 3 a horizontal sectionthrough the frame of the press
  • Fig. 4 a section through the cylinder for the prevention of fracture.
  • the letter A designates the frame of' the 'machine as a whole, which is provided at its forward side with a throat 2.
  • An anvil 3 is mounted in the frame A at the base of the throat, and a forging ram 4 is slidably mounted in ibearings 5 on the forward face of the frame above the throat and is adapted to be reciprocated tov forge workpieces mounted on the anvil.
  • the shaft 7 is ⁇ mounted in a vertically disposed screw spindle 8 journaled in ⁇ the frame A and adapted to be adjusted vertically to raise or lower the position of the fulcrum shaft V7.
  • a nut 9 is mounted onthe spindle 8 and jou'rnaledin the frame A, and has an'integral worni-wheel 10 formed thereon, which is meshed with a worm 12 on the armature .shaft of a motor 13, to provide for power adjustment of the spindle.
  • a pair of bear ing and guide blocks 14 are mounted on the shaft 7 and within guide slots 15 in the frame A, so as to guide the shaft 7 when the spindle 8 and shaft 7 are moved vertically.
  • the rocking lever 6 is fulcrumed on the shaft 7 at a point toward its forward end from its vertical center line so asy to provide a forward short arm 7a and a long rear arm 7 b.
  • the rear end of the 'llever'6 is forked and pivotal'ly connected to tru'nnion's 18 secured inthe wall lof a pressure cylinder 19.
  • the cylinder 19 has a piston 20 therein connected to a piston rod 21 which projects below the cylinder 1'9 and is connected to the crankv .'23 journaled in bearings 2339011 a ⁇ bracket 24 on 'the frame A.
  • a liquid supplycylinder 25 is mounted on topk of the cylinder 19 and is adapted to be filled with liquid to be drawn into the cylinder 19.
  • An inlet valve port 26 forms a communicating passage between thecylinf.v ders 25 and 19, whichis normally closed .by a valve 27 connected to a valve rod 28 projecting upwardly through ⁇ the cylinder ⁇ 25. ⁇
  • a valve spring 29 ⁇ is mountedfaronnd .the Y -V portion o'fjthevalve rod 28 above the cylinder 25 and is held under ten'sionby' nuts 30.
  • the downward stroke of the rear end of the lever 6 is limited by a cam 39 mounted on a shaft 40.
  • the shaft 40 carries a'pinion 41 in mesh with a gear 42 on a stub shaft 43 which is meshed with a rack segment-44.
  • the rack segment 44 is formed integral with a rocking lever 45 fulcrumed on a stub shaft 75
  • An escape or 'outlet valve port'31 is formed -v ybetween the cylinders 25V and 19 and is nor- 46, and has its forward endconnected by a connecting link 47 with the shaft 7, so that as the shaft 7 is adjusted vertically the rack segment 44 will be operated to cause the cam Ystop 39 to be moved through the gears 41 and 42.
  • the crank shaft 23. is provided with a gear 48 which is meshed with a pinion 49Y on ashaft 50;
  • the shaft 50 ⁇ also carries a gear 51 which isein mesh with a pinion .52 on ashaft 53 coupled to the' armatureV vshaft 54 of a variable speed motor ⁇ 55.
  • the motor 55 drives the crank Y Vshaft 23 through the gears 52, 51, 49 and 4S,
  • fulcrum sliaft ⁇ 7 of the'lever 6 is adapted to be adjusted vertically by means of a nut 9, worm-wheel and worm 1.0 and 12, and motor 13 so as to vary the amount of movement of the lever Gand consequently the amount of movement of the ram 4.
  • AAn indicator 56 and scale ⁇ 57 ⁇ cooperate to indi- ⁇ cate the distance between the ram 4 and anvil 3 at thevarious .points of adjustment of the shaft 7.
  • Thecylinders 19 and 25 and their cooperating mechanism form an overfpressure .safety or relief connection to prevent the apparatus exceeding a predetermined maximum power.
  • 'said'ineans includf ing a cam shaft, a cam on said shaftadapted to engage and limit the downward movement of said lever, and means operable by the vertical movement of* ⁇ said fulcrum for rotating said camshaft to vary the vposition ward movement 'of the end of said lever n Y of said camand thereby vary thedownward v movement of said lever. 1 l Y 2.
  • a forging press comprising a housing, an anvil on said housing, a reciprocatory ram, a rocking lever for reciprocating said rain, a fulerum l ⁇ shaft for said lever,
  • Asaid fulcrum shaft being vertically movable relative to said housing, a vertical screwspindle journaled in said housing and supporting said fulcrum shaft, a nut having a threaded engagement with said spindle and journaled in said housing, power means for'operating said nut to cause a vertical movement of said spindle andl said fulcrum shaft, and adjustable means for limiting the downward y movement of the rear end of said lever, said means including a cam shaft, a cannon said shaft adapted to engage and limit the down ⁇ ward movement of said lever, a pinion on said cam shaft, and means including a rocking lever having a rock segment thereon in mesh with said pinion and voperable by the vertical movement of said fulcrum sliaftrfor rotating said cam shaft to

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
US108807A 1925-07-14 1926-05-13 Electrically-driven forging press Expired - Lifetime US1677471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE255461X 1925-07-14

Publications (1)

Publication Number Publication Date
US1677471A true US1677471A (en) 1928-07-17

Family

ID=5963480

Family Applications (1)

Application Number Title Priority Date Filing Date
US108807A Expired - Lifetime US1677471A (en) 1925-07-14 1926-05-13 Electrically-driven forging press

Country Status (4)

Country Link
US (1) US1677471A (forum.php)
BE (1) BE335261A (forum.php)
FR (1) FR611196A (forum.php)
GB (1) GB255461A (forum.php)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318235A (en) * 1963-10-18 1967-05-09 Hanni Eduard Hydraulic press brake
CN117086251A (zh) * 2023-10-16 2023-11-21 常州市科宇重工科技有限公司 一种铸锻件成型锻打装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114147462A (zh) * 2021-11-27 2022-03-08 杭州职业技术学院 一种可调式无撞击薄轴承压装设备

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318235A (en) * 1963-10-18 1967-05-09 Hanni Eduard Hydraulic press brake
CN117086251A (zh) * 2023-10-16 2023-11-21 常州市科宇重工科技有限公司 一种铸锻件成型锻打装置
CN117086251B (zh) * 2023-10-16 2024-01-05 常州市科宇重工科技有限公司 一种铸锻件成型锻打装置

Also Published As

Publication number Publication date
GB255461A (en) 1927-10-14
FR611196A (fr) 1926-09-22
BE335261A (forum.php)

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