US2205585A

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Publication number: US2205585A
Application number: US243884A
Authority: US
Inventors: Wilcox Richard Lester
Original assignee: Waterbury Farrel Foundry and Machine Co
Current assignee: Waterbury Farrel Foundry and Machine Co
Priority date: 1938-12-03
Filing date: 1938-12-03
Publication date: 1940-06-25
Anticipated expiration: 1957-06-25

Description

R. L. WILCOX June 25, 1940.

HEADER Filed Dec. 3, 1938 INVENTOR filc/mkalmrmhhcox ATTORNEY Patented June 25, 1940 UNITED, STATE HEADER Richard Lester Wilcox, Waterbury, C0nn., assignor to The Waterbury Farrel Foundry and Machine Company, Waterbury, Conn., a corporation of Connecticut Application December 3, 1938, Serial No. 243,884

8 Claims.

This invention relates to new and useful improvements in headers, upsetting machines or the like, and particularly to the frame thereof.

It has among its objects 'to provide a rigid header frame of the minimum size, that will not stretch or extend under the-maximum upsetting pressure. l

To these and other ends this invention consists in the header, having certain details of construction and combinations of parts, as hereinafter described and more particularly pointed out in the claims, reference being had to the accompanying drawing, wherein like numerals of reference indicate like parts in the several figures;

Figure 1 is a plan view of a header constructed according to the present invention; and

Figure 2 is a sectional elevation thereof, the parts in section being taken generally upon line 2--2 of Figure 1. 1

In a header, upsetting machine or the like a workpiece is subjected to pressure between the punch and die.

The major strength required in a header frame is to withstand the pressure of the upsetting of the workpiece between the punch and die at that portion between the crank shaft and the die block. 7

These frames have usually been made of cast iron, which is preferable to a steel cast frame, because not so easily stretched or extended. On the other hand, the cast iron frame, while it will not stretch as a steel frame, nevertheless, will break under excessive pressures. In both cases, the frame, whether made of cast iron or steel is very heavy to prevent this stretching or extension pressure.

The castings, whether steel or iron, vary greatly in strength, even though made under like conditions, so that it is practically impossible to determine in advance whether any particular frame will resist the upsetting pressure without stretch-v ing or extending. The necessity of making the frame of great bulk and size results in the production of a cumbersomemachine, diflicult and costly to handle during the manufacturing process, space consuming when completed and the operative parts located in an opening in the body are not readily accessible.

To overcome these and other objections in the art is a principal object of the invention, This is accomplished by providing a body or frame of relatively small size with independent mea'ns associated therewith that will effectually resist any possible stretching or extension thereof.

In this invention rods or the like are provided crank shaft and die block, aswell as any possible breakage thereof.

In the embodiment of theform ofthe inven- .tion as shown herein, 3 designates theframe within which is journaled a crank shaft 4, having associated th'erewth a pitman 5 connected with a ram 6, carrying a'punch l, which cooperates with a die in the die holder 8', as is usual, I

to' upset the workpiece.

Upon opposite sides of the center of 3 there are openings 9 which extend from the outer ends of the frame to the intermediate walls Iii. I

In these openings are bushings ll, within which support members l2,

slidably mounted. Theseopenings are at substantially a right angle to the crank shaft, are di-' rectly thereover and the center line of themachine where all stresses are derived.

Rotation of the crank shaft 4 imparts a reciprocating movement to theram 6, and the support members l2 associated therewith. While moving toward the die holder 8 pressure is applied to a workpiece in a well known manner.

' It is the application of this pressure by the punch against the workpiece that causes the stretching or extension of the frame.

While a frame as heretofore made will withstand the upsetting pressure if the workpiece is made of one type of metal, it will stretch if the workpiece is made of another type of metal.

In the outer end of some of the openings 9 is a disk I3, held against rotation by dowel pins It or the like, and in the outer end of the other openings are similar disks l5. These disks are connected by a rod it, one end of-which is threaded in the disk 13, and the other end projecting through the disk l5 with a nut I! upon the outer end thereof. These rods extend through the support members I2, and may if desired, be of such size as to form a journal therefor.

With rods associated with the frame as disclosed, the latter may be relatively small in size. Any excess strain placed upon the frame is taken by the rods which will not stretch under any possible stress from the upsetting operation and hence no stretching, extension or breaking of the frame.

Within the scope of the appended claims, changes and alterations may be made withinthe invention without deviating from the spirit thereof. To illustrate, the collar I3 may be made inthe frame r secured tov the ram 6, are

tegral with the rod I6, or may be welded thereon instead of threaded as herein shown, and the separate collar 15 may be entirely omitted or made an integral part of the nut l1.

What I claim is:

1. In a header or the like, a frame having spaced sides and ends connecting the sides, the ends having spaced openings on each side of the frame which aline longitudinally of the frame, a ram within the frame, a pair of elongated hollow members connected to the ram on opposite sides of the latter and having ends slidably mounted in the respective openings of the ends of the frame, a rod extending through each of the hollow members whereby to be completely housed thereby and by parts of theends ofthe frame, and means to connect the ends of each rod to the adjacent end of the frame, so as to prevent stretching or extension of the latter.

2. In a header or the like, in accordance with claim 1, wherein the hollow members consist of tubes that extend through and beyond the ends of the ram and terminate within and are concealed within the spaced openings.

3. In a header or the like, including a frame having spaced sides and ends connecting the sides, the ends having spaced openings on each side of the frame which aline longitudinally of the frame, a ram within the frame, a rod extending through each pair of spaced openings, and means to connect the ends of each rod to the adjacent end of the frame, so as to prevent stretching or extension of the latter, said rods being positioned between the top and bottom of the frame and concealed interiorly of the bounding walls thereof.

4. In a header or the like, a frame having spaced sides and ends connecting the sides, the ends having spaced openings on each side of the frame which aline longitudinally of the frame, a ram within the frame, a pair of elongated hollow members connected to the ram on opposite sides of the latter and having ends slidably mounted in the respective openings of the ends of the frame, a shaft at one end of the frame, a pitman forming an operative connection between the shaft and ram, a rod extending through each pair of spaced openings and being thereby positioned between the top of the frame and the shaft bearing and between an outer wall of the frame and the pitman.

5. In a header or the like, a frame having a central opening bounded by side and end portions, the ends having spaced openings upon each side of the length of the frame, which aline longitudinally of the frame, a ram within the central opening, a pair of elongated hollow members connected to the ram on opposite sides of the latter and having ends slidably mounted in the respective openings of the ends of the frame, a shaft at one end of the frame, a pitman forming an operative connection between the shaft and ram, a rod extending through each of the hollow members and said openings, and means to connect the ends of each rod to the adjacent end of the frame so as to prevent stretching or extension of the latter, the rods being concealed Within the hollow members and ends, and lying in a plane between the outside wall of the side of the frame and the adjacent wall of the said central opening.

6. In a header or the like, a frame having a central opening, and further having a pair of substantially alined openings below the top of the frame and upon each side of and substantially parallel with the longitudinal center of the frame, said alinedopenings being separated by a recess, the bottom of which is below the alined openings; a ram within the frame which in part moves in said recess; a pair of elongated hollow members connected to the ram upon opposite sides of the latter and slidably mounted in said openings; a rod extending through each of the hollow members and said alined openings whereby to be completely housed thereby and concealed within the bounding walls of the frame; and means to connect the ends of each rod to the adjacent end of the frame so as to prevent stretching or extension of the latter.

7. In a header or the like, in accordance with claim 1, wherein each of the hollow members is journaled on and supported by one of said rods.

8. In a header or the like, in accordance with claim 1, wherein each of the hollow members is journaled on and supported by one of said rods throughout its entire length.

RICHARD LESTER WILCOX.