US1122440A - Metal-punching machine. - Google Patents

Metal-punching machine. Download PDF

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Publication number
US1122440A
US1122440A US79285013A US1913792850A US1122440A US 1122440 A US1122440 A US 1122440A US 79285013 A US79285013 A US 79285013A US 1913792850 A US1913792850 A US 1913792850A US 1122440 A US1122440 A US 1122440A
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Prior art keywords
punching
metal
work
punching machine
head
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Expired - Lifetime
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US79285013A
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George P Thomas
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/08—Arrangements for positively actuating jaws using cams

Definitions

  • FIG. 1 of the drawings is an-elevation of a portion ofa punch. frame and reciprocating head with one form of my improved holding means attached thereto;
  • Fig. 2 is a lan view taken on the broken'line II II, Fig. 1; and
  • Fig. 3 is a side elevation of the disclosure of Fig. 1.
  • the improved means which I provide for I holding the work while being punched comprise a movable member borne by the fixed frame of the punch and adapted in one position to engage and hold the work in proper punching position, and a second member securednto the reciprocating punch head and adapted upon the downward stroke of the head to move the work-engaging member to its operative position.
  • each holder is a plunger formed of-two bars 2, slidably mounted one on each side of a carrier block 3, and rigidly con- Knectedt o each other by a bolt 4, having a roller 5 rotatably mounted thereon between the bars.
  • the lower end of'the fingers 10 are tapered or provided with inclined faces 13, the relative arrangement of the parts being such that, as'the head 12 moves downwardly, the tapered finger faces 13 will strike the rollers 5 and thus cause the-plungers to move toward the angles and I thickness of which in a given size angle varies but slightly throughout its length.
  • the punching 'machine put in operation it willbe seen that the .work will, at the successive points of punching, be firmly held during each stroke of the punch, and that between strokes the work will be free to move in either direc- -tion.
  • a plunger consisting of a pair of bars slidably mounted one on each side of said block and held yieldingly from engage ment with a piece of Work, a roller-provided connecting member between said bars, a finger adjustably secured to said head and huv- ,ing an inclined face adapted on the downward stroke of said head to engage the roller of said plunger connecting-member and thereby move said plii'nge'r to-wofk-engaging position.

Description

G. P. THOMAS.
METAL'PUNGHING MACHINE.
ABPLIOATION FILED 001:,1 1913.
i 1 ;122,440. Patented De0.2 9,1914.-
Fll3.1
mm m
"lulu, mm
llIllll IIIIIIH my mm Atty ' TITE mars GEORGE P. 'rnoiaas, or GLENSHAW, PENNSYLVANIA.
METAL-PUNCHING MACHINE.
Specification of Letters Patent.
Patented Dec. 29, 1914.
Application filed October 1, 1913. Serial No. 792,850.
To all whom it may concern:
Be it known that I, GEORGE P. THOMAS, residing at Glenshaw, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or dis covered certain new and useful Improve.
ments in Metal-Punching Machines, of which improvement the following is a specification.
It is the object of my invention to provide a metal. punching machine with means for holding an elongate piece of work firmly in proper punching position while being punched, but which will permit of a free longitudinal movement of the work in either direction between successive strokes of the I,
punch.
While my invention may be employed-in machines for punching various kinds of long work, it is particularly applicable to punching such sections maybe largely eliminated by holding them firmly in a back-to-back position during the punching operation, the best practice being to attach V the ends of the sections to a spacing table and tov engage and hold them firmly during each stroke of the punch at the point of punching. My invention finds particular application in this manner of punching, and is thus illustrated in the accompanying drawings, forming part of my specification. Figure 1 of the drawings is an-elevation of a portion ofa punch. frame and reciprocating head with one form of my improved holding means attached thereto; Fig. 2 is a lan view taken on the broken'line II II, Fig. 1; and Fig. 3 is a side elevation of the disclosure of Fig. 1.
Like numerals are used to designate like partsin the several figures,
The improved means which I provide for I holding the work while being punched comprise a movable member borne by the fixed frame of the punch and adapted in one position to engage and hold the work in proper punching position, and a second member securednto the reciprocating punch head and adapted upon the downward stroke of the head to move the work-engaging member to its operative position.
Referring to the particular embodiment of my invention illustrated in the drawing, two holders, alike in every respect, are shown disposed at opposite sides of a pair of back-to-back angles 1. The movable member of each holder is a plunger formed of-two bars 2, slidably mounted one on each side of a carrier block 3, and rigidly con- Knectedt o each other by a bolt 4, having a roller 5 rotatably mounted thereon between the bars.
punching machine by bolts 7 extending into slots 8 with enlarged inner ends. As willgbe readily seen the plunger bars 2 are held yieldingly from engagement with' the verti-' Each block 3 is adjustably se cured tothe fixed frame or anvil 6 of thecal legs of the angles 1 by means of springs I 9. The means carried by the punch head and efiective on the downward stroke thereof to move the plunger 2 to work-engaging and holding position, comprise fingers 10, secured to blocks 11, adjustably secured to opposite sides ofthe reciprocating head 12 in the same manner as the carriers 3 are secured to the frame 6. The lower end of'the fingers 10 are tapered or provided with inclined faces 13, the relative arrangement of the parts being such that, as'the head 12 moves downwardly, the tapered finger faces 13 will strike the rollers 5 and thus cause the-plungers to move toward the angles and I thickness of which in a given size angle varies but slightly throughout its length. When thus arranged and the punching 'machine put in operation, it willbe seen that the .work will, at the successive points of punching, be firmly held during each stroke of the punch, and that between strokes the work will be free to move in either direc- -tion.' I claim as my invention:
In a work holder for punching machinesM jo the combination with a frame, and a reciprocating head; of a block adjustably secured Because of the variations in width' to said frame, a plunger consisting of a pair of bars slidably mounted one on each side of said block and held yieldingly from engage ment with a piece of Work, a roller-provided connecting member between said bars, a finger adjustably secured to said head and huv- ,ing an inclined face adapted on the downward stroke of said head to engage the roller of said plunger connecting-member and thereby move said plii'nge'r to-wofk-engaging position. In testimony hereofl have hereunto set my hand. I
GEORGE P. 'II-IOlVlASw Witnesses:
PAUL N. CRITCHLOV, FRANCIS J. TomAssoN.
US79285013A 1913-10-01 1913-10-01 Metal-punching machine. Expired - Lifetime US1122440A (en)

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US79285013A US1122440A (en) 1913-10-01 1913-10-01 Metal-punching machine.

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430377A (en) * 1943-06-17 1947-11-04 Western Electric Co Punch press actuated staking apparatus
US2656888A (en) * 1951-05-11 1953-10-27 Wire O Corp Round cornering machine
US2658496A (en) * 1950-01-20 1953-11-10 Hoglund Nils Wheel dressing apparatus
US3108508A (en) * 1960-05-16 1963-10-29 Monroe Calculating Machine Part locating means for piercing operations

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430377A (en) * 1943-06-17 1947-11-04 Western Electric Co Punch press actuated staking apparatus
US2658496A (en) * 1950-01-20 1953-11-10 Hoglund Nils Wheel dressing apparatus
US2656888A (en) * 1951-05-11 1953-10-27 Wire O Corp Round cornering machine
US3108508A (en) * 1960-05-16 1963-10-29 Monroe Calculating Machine Part locating means for piercing operations

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