US1882158A - Bracing means for shaper rams - Google Patents

Description

Oct. 11, 1932. MORTON 1,882,158

BRAGING MEANS FOR SHAPER RAMS Filed March 13 1930 2 Sheets-Sheet 1 gig Z. INVENTOR ATT O'RN EY5 Patented Oct. 11, 1932 UNITED STATES FFICE BRAC iING MEANS FOR SHAPER RAMS Application filed March 13, 1930. Serial No. 435,621.

This invention relates to that class of metal working machines known as draw-cut shapers and particularly to those machines designed for very heavy work and employing a reciprocable ram supported at one end with its tool carrying end in overhanging relation to the work.

In this type of machine it has been found that there is liable to be a slight deflection of the ram under the very'heavy strain imposed thereon during the cutting stroke, which deflection will aflect theaccuracy of the work, and the object of the present invention is to eliminate, in machines of this character, any possibility of such deflection. It is also an object to provide adjustable means for compensating for wear so that after long use, there will be no deflection of the ram due to such wear, and to provide an arrangement whereby such adjustment may be quickly and easily effected and will 00-- operate with either a fixed or rotatively adjustable tool carrying head on the ram, to

effect such accurate adjustment.

With the above and other ends in view, the

invention resides in the matters hereinafter Figure 1 is a side elevation of a machine illustrative of an embodiment of the present invention;

Fig. 2 is an end elevation of the ram and adjacent parts;

Fig. 3 is a longitudinal section substantially upon the line 3- 3 of Figure 2; and

Fig. 4 is a transverse section substantially upon the line 4l4 of Figure l.

While the present invention is shown as applied to a draw-cut shaper of a particular construction such as that shown in my pending application filed January 25, 1928, Serial No. 249,282, it will be understood that the same may be applied to othershapers of this or of the push out type designed for heavy work and including an overhanging ram subject'to heavy lateral strains during the cutting stroke of the cutting tool carried by the free end thereof. j j p In the drawings, Aindicates a suitable base for the machine, B the upright pedestal or body on the base provided with suitable bearings, not shown, at its upper end for a horizontally reciprocable ram 0 which ram is supported in said bearings on the pedestal at one end only, with its free end provided with a cutting tool carrying head indicated as a whole by the letter D in overhanging relation to a work supporting table E. This work table is supported by a supporting frame F extending therebeneath, said frame being secured to a vertically movable rail G guided by vertical guides G on the pedes talB, and in turn carrying a horizontally reciprocable apron H which is adapted to be reciprocated upon and guided by guides H on said rail G in its horizontal movement transversely of said ram, said table being secured to and movable with said apron relative to said supporting frame F and rail G, the vertical face of said apron extending at right angles to the upper face of the table to properly locate work I secured in place upon the'table, The rail Gr and supporting frame F are rigidly supported and vertically 7 adjusted by means of vertical supporting screws J and J mounted on the base A with the screws J supporting the rail and the screws J beneath the free end of the frame F.

As fully disclosed'in said applicationabove so referred to, motion is transmitted from the drawing parts of the shaper for moving said table either vertically or horizontally with I either a continuous or intermittent feed motion, such motion transmitting meansbeing indicated in part as carried by said rail and in part, as mounted upon the adjacent part of said pedestal, but as said motion transmittingmeans forms no part of the present invention, the sameis not fully shown in the accompanying drawings or described herein. To providean absolutely rigid abutment or backing for the projecting end of the ram so that it can not yield in the slightest under the extremely heavy-strains imposed thereon duringthe cutting stroke of the ram, a cap member or head 1 is bolted or otherwise rigidly secured to the upper end of the pedestal B, or if foundpracticable to do so, maybe formed integral with the pedestal, and this or outstroke of the ram .said holder may cap member is formed with a laterally proecting portion or nose 2 which extends parallel with and in spaced relation to the upper The tool carrying head D is ofthe usual construction,it being attached to the reduced "'andscrew-threaded end 0? of the ram by" a split and internally.screw threaded collar "6 on the 'head'so that this head may be adjustably rotated upon the ram to set the toolf at an angle or swing it from side 'to sidefor performing certain operations, and said tool is secured within a sock et member g which is pivotally supported in a slot in the head by means of apivot pin h so that upon the idle swing to relieve the tool. upon that stroke, the swinging of said holder in an opposite direction or upon the working stroke of the ram, being limited to cause the tool to vengage the work and take a cut therefrom, all being A 'constructed and arranged inan old and well known manner.

- Seated upon and rigidlysecured inany suitable manner to the upper end of the head D is a seat block 3 and this block is formed with anupper seatingv surface t which is curved transversely of the head concentric with the axis about which the head is rotated upon theend-of the ram forpurposes of adjustment. A; lower wedge membery5 .is formed at its lower side with a correspond- "ingly curved seating surfaceto seat upon the surface 4 of the block 3, and this wed e memberis provided withend. lips 6 and? to en- 'gage the ends of the block 3,the lip6 being p'rovidedwith a slot 8 curved in the vdirection of its length and through which slot a bolt 9 extends and is screwed into a screwthreaded opening in the adjacent end of the block 3. iThe seat block 3 may therefore swing with the head D relativeto'the wedge member 5 when said'head is adjusted rotatively upon the ram, and the'block and wedge member then locked in their relative positions by means of the bolt 9. a

The upper fiat's'urface of the wedge memher 5 isinclined in the directionofits length or longitudinally of the ram and seated upon this inclined surface is an upperwedgemem- 'ber 10 having a'lower surface which isfinclined in the direction of the length of the member to seat upon the correspondingly inclined upper surface; of thewedge, 5, said member 10 being ofxgreater'lengththan. the

5 member 5 and provide'd at its end projecting beyond the lower wedge, with a downwardthereon carried by said head. 7 s 2. The co'mbination with a m ends of said bolts to engage the outer side of said lip so that byturning up the nuts, the

two Wedgemembers may beshifted relatively longitudinal direction, the wedge 10 bein thuad iv n in, bet e the Wedge 5 and a wearplate 14 secured upon the lower face of the noseor abutment member 2 extending substantially tliefull length of said face and securedin placebetween guide plates 15 by screw bolts 16 passing therethrough and into the edges iofjsaid plate 14,said guide plates being secured torthe side edges of the nose member by screwbolts, 17.. These guide plates are ofa width to extend down into contact withthe sideedges of the wedge members 5 and '10, thus forming a guide channel or way within which the wedges are guided as they are reciprocated therein with the tool carrying head upon reciprocation of the ram,

These wedge members 5 and 10 thus form an adjustable bearing for the head D upon thelower side of the nose memberi2,and wear may be quickly'compensated for byadjusting said wedgeimembers relatively, and the nose orabutment 2f'thus forms a rigid trackfor the headD regardless of the position to which it 'is rotatively adjusted upon the end of the ram and takes the'jheavy thrust of the cutting tool during the workingstroke, so that the possibility of theram yielding or springing upwardly under such heavystrains, is obdirection of the lateral thrust thereonfof a tool carried by said. ram'and having'a lon- Ill gitudinal guide, and av tool carrying head I carried by the unsupported end portion of said ram to move, therewith and guided by said guide ,in contact with said member to prevent said ram from yielding laterally in the direction of the lateral thrust of the tool etal working machine having'a body and a horizontally reciprocableram supported by said body with its cutting tool carrying end projecting laterally from said bodyand unsupported, of a member rigidly supported saidbody and .ex end ng .late a1ly t er f m,lenait y of said ram at the side of saidram-in the direction of lateral thrust of a tool carried by said ram and extending in spaced relation to said ram and to the extreme outer end of the stroke of said ram, and separate bearing means carried by the unsupported end of said ram in sliding engagement with said member, said bearing means including relatively adjustable members for expanding said hearing means between said ram and member to compensate for wear.

3. The combination with a metal working machine having a body and a horizontally reciprocable ram supported by said body with its cutting tool carrying end projecting laterally from said body and unsupported, of a member rigidly supported by said body and extending laterally therefrom longitudinally of said ram in spaced relation thereto and to the extreme outer end of the stroke of said ram, a tool carrying head on said ram, and bearing means carried by said head to engage and slide along said member upon reciprocation of said ram, said bearing means including relatively adjustable members for expanding said bearing means between said head and member.

4. The combination with a metal working machine having a body and a horizontally reciprocable ram supported by said body with its cutting tool carrying end projecting laterally from said body and unsupported, of a member rigidly supported by said body and extending laterally therefrom longitudinally of said ram in spaced relation thereto and to the extreme outer end of the stroke of said ram, a tool carrying head adjustable rotatively upon said ram, a guideway extending along the lower side of said rigid member, and bearing means mounted upon said head to move with said ram along said guideway and in engagement with which said head is rotatively adjustable.

5. The combination with a metal working machine having a body and a horizontally reciprocable ram supported by said body with its cutting tool carrying end projecting laterally from said body and unsupported, of a member rigidly supported by said body and extending laterally therefrom longitudinally of said ram in spaced relation thereto and to the extreme outer end of the stroke of said ram, a tool carrying head rotatively adjustable upon the unsupported end of the aid ram, bearing means interposed between said head and said rigid member and including a block secured to said head and formed with a surface curved concentric with the axis of rotation of said head on said ram and a member formed with a curved bearing surface to seat upon said curved surface of said block.

6. The combination with a metal working machine having a body and a horizontally reciprocable ram supported by said body with its cutting tool carrying end projecting HENRY E. MORTON.

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