US208009A - Improvement in metal stamping, shearing, and punching machines - Google Patents

Improvement in metal stamping, shearing, and punching machines Download PDF

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Publication number
US208009A
US208009A US208009DA US208009A US 208009 A US208009 A US 208009A US 208009D A US208009D A US 208009DA US 208009 A US208009 A US 208009A
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United States
Prior art keywords
shearing
lever
improvement
metal stamping
slide
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Expired - Lifetime
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • B26F1/382—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8696—Means to change datum plane of tool or tool presser stroke
    • Y10T83/8697—For disabling of continuously actuated cutter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8837—With application of force to opposite ends of tool supporting crosshead

Definitions

  • the invention also consists in a novel device for stopping the action of the slide of the punching or stamping machine while the pendultnn is permitted tooscil-late.
  • the object of my invention is to provide a simple and powerful .machine for stamping, shearing, and punching, which shall, with the expenditure of a small amount of power, perform the heavier kinds of work.
  • A is the foundation or base-piece,-upon which there are two cars, 13, one at each side of an opening in the bed, that receives the upper bifurcated end, a, of the lever O, in which is secured an eccentric, I), whose pivot c is supported by the ears B.
  • the axis of the eccentric is placed on a horizontal line drawn through its pivot, or is removed ninety degrees from the line of pressnre.
  • a heavy weight, D is secured to the lower tnd of the lever G .
  • This weight may be made adjustable on the lever, when it may be moved nearer the pivot for light work.
  • lever, E is secured to the side of the lever O, which is connected by two links, d, with a hand-lever, F, that is fulcrumed on a cross-bar of the frame G.
  • the frame G is mounted on the base-piece, and supports the bed H of the punching-machine centrally over the lever 0.
  • the slide I is fitted between two curved standards, g, that are secured to the bed H.
  • This slide and the curved standards are slotted to receive a bar, J, which is connected by rods 0 with a cross-bar, K, below the bed H.
  • eccentric-rod On the eccentric b an eccentric-rod, 'f, is placed, which is connected by means of a right and left hand screw, f, with the bar K, the end of the eccentricrod and the bar being apertured and threaded for receiving the screw,
  • a hasp, L is hinged to the upper part of the slide I, and is provided with a pin, it, which projects through an aperture in the slide into an aperture in the bar J when it is required to move the slide I, and when it is desired to oscillate the pendulum without moving the slide the pin it is withdrawn, when the bar J will move up or down in the slot.
  • the slide J and the bed H are provided with the usual devices for holding punches, shear-blades, or dies.'
  • the distance between the upper and lower die maybe varied.
  • the hand-lever up and down the pendulum is oscillated, and the slide I is moved up and down by the eccentric with great force, so that stamping or cutting, which were hitherto considered too heavy for hand machines, in aybe readily done by this improved machine.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

J., T. BEDFORD. Metal Stamping, Shearing and Punchi'ngfMaohine.
P t ted Sept. 17,1878.
AINVENTOR: 0 2 7 WITNESSE ATTORNEYS.
TO-LJTHOGRAP WASHINGTON D. C.
UNITED STATES PATE TOEEIoE.
JOSEPH T. BEDFORD, on NEW YORK, N. Y.
IMPROVEMENT IN METAL STAMPING, SHEARING, AND PUNCl-HNG MACHINES.
Specification forming part of Letters Patent No. 208,009, dated September 17, 1878 application filed January 19, 1878.
a hand-lever with a heavily-weighted lever or pendulum mounted on a pivot, and carrying an eccentric, whose rod is connected with the slide of a stamping, shearing, or punching machine. p
The invention also consists in a novel device for stopping the action of the slide of the punching or stamping machine while the pendultnn is permitted tooscil-late.
The object of my invention is to provide a simple and powerful .machine for stamping, shearing, and punching, which shall, with the expenditure of a small amount of power, perform the heavier kinds of work.
Referring to the drawing, A is the foundation or base-piece,-upon which there are two cars, 13, one at each side of an opening in the bed, that receives the upper bifurcated end, a, of the lever O, in which is secured an eccentric, I), whose pivot c is supported by the ears B. The axis of the eccentric is placed on a horizontal line drawn through its pivot, or is removed ninety degrees from the line of pressnre.
To the lower tnd of the lever G a heavy weight, D, is secured. This weight may be made adjustable on the lever, when it may be moved nearer the pivot for light work.
A. lever, E,is secured to the side of the lever O, which is connected by two links, d, with a hand-lever, F, that is fulcrumed on a cross-bar of the frame G. The frame G is mounted on the base-piece, and supports the bed H of the punching-machine centrally over the lever 0.
Between two curved standards, g, that are secured to the bed H, the slide I is fitted. This slide and the curved standards are slotted to receive a bar, J, which is connected by rods 0 with a cross-bar, K, below the bed H.
On the eccentric b an eccentric-rod, 'f, is placed, which is connected by means of a right and left hand screw, f, with the bar K, the end of the eccentricrod and the bar being apertured and threaded for receiving the screw,
A hasp, L, is hinged to the upper part of the slide I, and is provided with a pin, it, which projects through an aperture in the slide into an aperture in the bar J when it is required to move the slide I, and when it is desired to oscillate the pendulum without moving the slide the pin it is withdrawn, when the bar J will move up or down in the slot.
The slide J and the bed H are provided with the usual devices for holding punches, shear-blades, or dies.'
By turning the screw f the distance between the upper and lower die maybe varied. By moving the hand-lever up and down the pendulum is oscillated, and the slide I is moved up and down by the eccentric with great force, so that stamping or cutting, which were hitherto considered too heavy for hand machines, in aybe readily done by this improved machine.
I am aware that it is not broadly new to operate the working parts of metal punching and shearing machines by means of pendulous or weighted levers, and therefore desire to confine myself to the particular construction of parts hereinbefore described, which alone forms the subject of the present invention.
'Havin g thus described my invention, I claim as new and desire to secure by Letters Paen t 1. In a punching or shearing machine, the,
combination of the weighted pendulous lever O D, eccentric cross-head b, lever E, links (7,
JOSEPH T. BEDFORD.
Witnesses: Y
O. SEDGWIOK, GEO. M. HoPKiNs.
US208009D Improvement in metal stamping, shearing, and punching machines Expired - Lifetime US208009A (en)

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