US2275665A - Header or upsetting machine - Google Patents

Description

March 10, 1942. L. WILCOX v 2,275,665

HEADER OR UPSETTING MACHINE" Filed Feb. 14, 1940' 3 Sheets-Sheet 1' INVENTOR lea/m0 [is/[R Ml cox March 10, 1942. R. L. WILCOX HEADER OR UPSETTING MACHINE 5 Sheets-Sheet 2 Filed Feb.

INVENTOR lflcmmo lrmwh a cox ATTORNEY March 10, 1942, R. wlLcox HEADER OR UP SETTING MACHINE 3 Sheets-Sheet 3 Filed Feb. 14, 1940 I N V E NTO R fizz/4x0 [Esme M4 cox BY &

ATTORNEY Patented Mar. 10, 1942 HEADER R UPSETTING MACHINE Richard Lester Wilcox, Waterbury, Conn., as?

signor to The Waterbury Farrel Foundry and Machine Company, Waterbury, Conn, a corporation of Connecticut Application February 14, 1940, Serial No. 318,893

25 Claims.

This invention relates to a new and improved header or upsetting machine and more particularly to the punch mechanism and associated parts thereof.

A principal object of the invention is to provide a header orupsetting machine with a plurality of punch holders that move independently of each other relative to the gate or ram, and successively present the punches carried by the holder into line with cooperating tools; a fur- (ClL -12) ther object being to maintain the punch holders under a constant pressure in the direction of their travel sufficient to absorb any lost motion that might develop in the moving parts; a further object being to provide mechanism that will be simple in its design, may be economically constructed and assembled and operate with the highest efiiciency. Another object is to materially increase the output of the headerto which it isapplied, over that: possible under the old practice.

Further objects of this invention willbe apparent from the following disclosure of one embodiment thereof, which is given merely by way of example and illustration, and the utility of the invention will be obvious from the advantages which are realized in the particular embodiment illustrated.

To these and other ends, this improved header and upsetting machine consists essentially of a combination of parts substantially as hereinafter described in the specification and the accompanying drawings, wherein like numerals of reference indicate like parts in the several figures;

Figure 1' is a longitudinalsectional view of a portion of a header or upsetting machine having the improvements herein set forth, the parts in section being taken generally uponline' of Figure 2;

Figure 2 is an elevation of some of the parts shown in Figure 1;

Figure 3 isa transverse fragmentary sectional view of some of the parts shown in Figure 1, those in section being taken generally upon line 3-3 of Figure 2;

Figure 4 is an enlarged detail view of a portion'of the punch slide shifter mechanism, the parts in section being taken generally upon line 4-4 of Figure 1; and

Figure 5 is a sectional view of the slide shifting mechanism, the parts in section being taken generally upon line 5-5 of Figure 1.

In the drawings, l0 indicates a portionoi the body of a header or upsetting machine, I the crank shaft, and. 2 the gate or ram connected with the shaft by a pitman. H5 or the like, and whereby reciprocatory movement is imparted to the gate l2. ,In the body Ill at one end, one or more dies l4 are held in any conventional manner.

,The details of construction, and operation of the mechanism, just described, are well known.

Within a recess of the working face of the gate 12 is a backing plate I5 having a central rib Hi to which a liner is secured by a screw 2| or the like.

Slidably mounted on the face of the backing plate l5, between the rib l5 and the gibs ll fixed on the gate, are the two punch slides l8 and I9. These slides are guided also by the liner 20, which projects into grooves in adjacent inner faces of the slides as shownin Figure 3.

Movably connected with ea ch of the slides, by bolts or the like, are the punch holders 22, having openings 23 therein to receive suitable punches 24 or the like. These punch holders are adjusted on their respective slides, both vertiany and laterally, in a well known manner. Suitable and well known means (not shown) are supplied, if desired, to lock the slides in either or boththeir upand down positions.

Secured on the underside of the gate I2 is a bracket 26, in which a shaft 2'! is journaled, and fixedthereon is a cradle 28". Anoscillating movement is imparted to the shaft'Zl and" the cradle 28 from'asecondary shaft 29, upon which is fixed a'cam 30, and actuatedfrom shaft l by gears or other mechanism (not shown).

Upon the shaft 29 is a journal box 32 (Figure 1), that is slidably mounted in a connection 3| against a secured cap 33 or the like. A timed reciprocatory'movement is given the connection 3| by the cam and the cam rolls 4|.

Mounted on a stub shaft 35, journaled in a hi: or the like on the body, is a rock member having two arms 34 and 36. The connection 3| is pivotally joined to the arm 34, and the joint mechanism is adjustable therein by a screw 41 or the like.

Projectinglaterally' from the cradle 28 is an offset, arm 39, between which and the cap 43 a shaft 38 is journaled. This shaft is operatively connected with the arm 36 onthe rock member 46 by the turn buckle mechanism 31, which may be adjusted'endwise in a well known manner.

Rotation of shaft 29 reciprocates the. connection 3| through cam 30 and cam rolls 4|. in tum impartsan oscillatory movement to the rock member 346 and to the cradle This 28 through in motion. The timing of this mechanism, however, is such that the cradle 28 is preferably oscillated when the gate is approaching or is in its retracted or withdrawn position, and holds its new position as thus oscillated until the gate is again returning or returned to its withdrawn position. i

Free to rotate upon the shaft 21 are two rock levers 42, with one of which the slide [9 is connected through a link 43 and the other to the slide l8 through the link 44. Pins 5| provide a pivotal connection for the levers and links and also for the links and .slides. H

Movably mounted in the cradle 28 at its forward end, and upon each side of the center thereof, are two pressure pins 45, the shanks of the punches 24 on the other punch slide are in alignment at one position of the gate, such line being indicated by the line A-B in Figure 2.

which are encircled by compensator springs 48,

the tension of which is variable through the sleeves 50 and nuts 49. These pressure pins are positioned so that each end of each rock lever 42 is engaged by a pressure pin 45.

Dies 14 of any preferred shape or form and for any desired purpose, are associated with the body H]. In the embodiment herein there are two of such dies, one for each set of punches, although only one is shown, these dies forming cooperating tools for the punches. The punches may be shaped and constructed to produce the desired product, or perform a prescribed dperation, whether the same be upsetting, trimming or other purpose. it

As the cradle 28 oscillates clockwise the slide i9 is movedupwardly by the pressure pin 45, directly therebelow, through the rock lever 42 joined therewith through the link 43. This movement continues until the slide brings up against the stop screw 52, at which time the spring 48 is compressed slightly until the locking bolt (not shown) functions and holds the slide positively in its up position. When the cradle rotates anti-clockwise the slide I9 moves downwardly until the nut 53 on the stop screw 54 engages a fixed part, as shown in Figure 1, at which time the spring at the opposite end of the lever is compressed slightly until the locking bolt (not shown) functions and holds the slide positively in its down position. By similar operations the slide l8 moves upwardly as the slide I9 moves downwardly. Both slides are subject to the adjustabl tension of the compression springs 48, which are of sufilcient strength to operate the up and down motions of the punch slides.

When the punch slide is stopped by the adjustable mechanism at the opposite ends of its stroke, the upper end of the pressure pin, at that end of the rock lever that has given motion to the punch slide in one direction, continues its movement until there is an open space between the pressure pin and the same rock lever opposite to the end that has given the motion to the punch slide.

In Figure 2 the punch slide [9 is in its lower or down position, determined by the nuts 58. At this time the spring 48, surrounding the pressure pin 45 at the left of the shaft 21, and-engaging the rock lever 42, connected wtih the punch slide i9, is compressed. The cradle 28 has oscillated sufiiciently to move the upper end of the pressure pin 45 on the side of the shaft, opposite to the one just referred to, away from the same rock lever and until there'is an opening between the pressure pin and the lever. The extent of A this opening is quitelimited andis determined ,by'adjustment of the nuts 49. As so positioned,

This line as so indicated is coincident with a line passing at a right angle through the centers of thev openings in the dies l4. and punches are on this line pressure is being applied to the workpieces. This pressure may beapplied upon a workpiece in a die I4 by the lower punch in one punch slide at the same time that pressure may be applied to another workpiece in another die I4 by the upper punch 24 in the other punch slide, and vice versa.

This mechanism may be used in connection with two independent wire feeds and two blanks may be produced where only one is produced in the prior art, thus doubling the production of the machine. Its use is also desirable to produce blanks or the like with heads other than cylindrical that require trimming to make the same polygonal in cross section, such as hexagonal, square or other shape. In such case a portion of the operations are performed with tools associated with one slide and completed with the tools associated with the second slide, the blank being transferred from one fixed die to the other. As so fabricated, the cylindrical head is preferably made whil the blank is in the first die by two rows of the tools or punches of one slide, then the blank is transferred to the second die where one tool in the second slide pushes the blank into the die, and another tool trims the cylindrical head to the desired shape in cross section. While the last tool referred to is in its forward position the knockout ejects the trimmed blank from the fixed die through the trimming die.

This mechanism is especially adapted for operations upon so-called oversize Wire. Such wire may be extruded in the first die and the unextruded portion, either in whole or in part, upset in the second die, and thereby provide a head having a much greater volume of metal therein than would be possible to otherwise obtain.

Again, with this'mechanism, a blank can be upset with two strokes by the tools in the first slide, a further upsetting may be made by a tool in the second slide, and then the blank trimmed by another tool on the second slide. With such an arrangement three heading punches or tools may be utilized to produce a head by three blows in a two blow header and the head also trimmed. It is possible also to fabricate a workpiece requiring four blows in a two-blow header, two blows by punches in the first slide and two by punches in While the dies What is claimed is:

1. In combination with a movable gate, a pair the punch holders on the gate before the limit of each forward movement of the gate.

2. In combination with a movable gate, and means for operating same, a pair of punch holders carried thereby, means for mounting each holder on the gate for sliding movement, and means for synchronously and alternately moving each holder on the gate and in opposite directions.

3. In combination with a movable gate and means for operating same, a pair of punch holders carried thereby, means for mounting each holder on the gate 'for sliding movement, and means for synchronously moving the punch holders on the gate alternately and in opposite directions during movement of the gate.

4. In combination with a header frame; tools 7 fixed thereon; a movable gate; a pair of punch holders carried thereby; tools on the punch holders; means to synchronously move the punch holders alternately and in opposite" directions whereby the tools thereon will cooperate with the tools in the frame to fabricate a workpiece, with a lower tool on one punch holder cooperating with a tool on the frame, while an upper tool upon a second punch holder is cooperating with another tool on the frame and vice versa.

5. In combination with a movable gate; a pair of punch holders carried thereby; and means for synchronously moving the punch holders on the gate alternately and in opposite directions at or near the limit of the rearward stroke of the gate.

6. In combination with a movable gate; a plurality of slides carried thereby; an oscillating member on the gate; an operative connection between the slides and the oscillating member for simultaneously moving the slides in opposite directions by the oscillating member; and a punch holder on each of theslides.

7. In combination a movable gate; a plurality of slides carried thereby; an oscillating member on the gate; an operative connection between the oscillating member and the slides, such connection being upon opposite sides of the axis of the oscillating member and a punch holder in each of the slides.

8. In combination a movable of slides carried thereby; a shaft; an oscillating member on the gate; an operative connection be tween the shaft and the member whereby to actuate the latter during movement of the gate; an operative connection between the oscillating member and each slide, such connections being upon opposite sides of the axis of the oscillating member.

9. In combination a, movable gate; a plurality of slides carried thereby; a shaft; an oscillating member on the gate; an operative connection between the shaft and the member whereby to actuate the latter during movement of the gate; an operative connection between the oscillating member and each slide, such connections being upon opposite sides of the axis of the oscillating member, and comprising in part compensator members.

10. In combination a movable gate; a plurality of slides carried thereby; a shaft; an oscillating member on the gate; an operative connection between the shaft and themember whereby to actuate the latter during movement of the gate; an operative connection between the oscillating gate; a plurality 3 member and each slide, such connections being upon opposite sides of the axis of the oscillating member, and comprising in part pressure pins and a yielding element associated therewith that exert an endwise thrust to the pins.

11. In combination a movable ate; a plurality of slides carried thereby; a shaft; an oscillating member on the gate; an operative connection between the shaft and the member whereby to actuate the latter during movement of the gate; anoperative connection between the oscillating member and each slide, such connections being upon opposite sides of the axis of the oscillating member, and comprising in part a rock lever for each slide, a; plurality of pressure pins for each slide movably mounted in the oscillating member at an acute angle to each other; and a yielding element that exerts an endwise thrustupon the pressure pins.

12. In combination a movable gate; a plurality of slides carried thereby; a shaft; an oscillating member on the gate; an operative connection between the shaft and the member whereby to impart movement to the latter during the movement of the gate; an operative connection between the oscillating member and the slides upon opposite sides of the axis of the oscillating member, comprising in part a lever for each slide, having a pivotal connection therewith; combined pressure and compensator members mounted in the oscillating memberand so positioned that one of such members is in engagement with each end of each of said levers.

13. In combination a movable gate; a plurality of slides carried thereby; a bracket on the gate; a membermounted on the bracket to oscillate relatively to the gate; an operative connection between each slide and the said member; and a punch holder on each slide.

14. In combination a movable gate; a plurality of slides carried thereby; means for limiting the movement of the slides in each direction; and means for moving the slides on the gate in opposite directions, which means will yield slightly after the slide has reached the limits of its movement in either direction.

15. In combination a movable gate; plural slides movably mounted thereon; a shaft associated withthe gate; an oscillating member on the shaft; means for actuating the oscillating member; means for synchronously moving the slides on the gate in opposite directions, comprising in part a lever on said shaft for each slide; an operative connection between each lever and a slide; and a plurality of pressure pins carried by the oscillating member which engage the levers and impart movement thereto.

16. In combination a gate having a recess; a rib projecting into the recess; a liner fixed to the rib; companion slides, each provided with a groove to receive one side of the liner; means as gibs or the like, providing a support for the slides; and a punch holder connected with each slide.

17. In combination, a gate having a recess; companion slides; means between the slides, having intermeshing engagement therewith and within the recess for forming a guide for the slides;means, as gibs or the like, providing a support for each slide; and a punch holder connected with each slide.

18. In combination a movable gate; a pair of slides carried thereby; an actuating member on the gate; an operative connection between the actuating member and the slides for moving the slides simultaneously in opposite directions; means for operating the actuating member, in such timed relation to the gate whereby each slide will have a new relative position when the gate is approaching oris inits retracted or Withdrawn position and holding such new position until the gate is again approaching or is in its retracted or withdrawn position; and a punch holder on each slide.

19. In combination a movable gate; a pair of slides carried thereby; an actuating member on the gate; an operative connection between the slides and the actuating member for operating the slides simultaneously and alternately in opposite directions; a punch holder on each slide; and compression members which apply tension to the slides andof sufficient power to ultimately move the slides in one direction.

20. In a header or like machine having a movable gate; a pair of slides. having punches carried thereby; a shaft; and means to synchronously and alternately actuate said slides from the shaft.

21. In a header or like machine having a movable gate, a pair of slides having punches carried thereby and means to synchronously alternately actuate said slides from the gate.

22. In combination a movable gate; a plurality of slides carried thereby; a shaft; an actuating member on the gate; an operative connection between the shaft and the member whereby to impart movement to the latter during movement of the gate; an operative connection between the actuating member and each slide, such connections being upon opposite sides of the axis of the actuating member, and comprising in part a rock lever for each slide, a plurality of pressure pins for each slide movably mounted in the actuating member; and a yielding element that exerts an endwise thrust upon the pressure pins.

23. In a header or like machine having a movable gate; a pair of slides having punches carried thereby; means for limiting the movement of the slides in one direction; means for simultaneously moving the slides on the gate in opposite directions, and means whereby to provide for slight yielding of each slide after the slide has reached the limits of its movement in either direction.

24. In a header or like machine having a movable gate; a pair of slides carried thereby; a punch holder on each slide; an actuating memher on the gate; and an operating member between the slides and the actuating member, whereby the punch holders will be simultaneous- 1y actuated and occupy difierent relative positions at each successive movement of the gate.

25. In combination with a movable gate, a pair of punch holders, means to slidably mount each of the holders on the gate, actuating means for the punch holders, and means to synchronously operate the punch holders in opposite directions from the actuating means at predetermined times whereby to cause the punch holders to occupy different relative positions upon successive movements of the gate.

RICHARD LESTER WILCOX.

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