US1750932A - Turning and heading machine - Google Patents

Description

W. KIRCHNER ET AL TURNING AND HEADING MACHINE Mm'h 18, 1930.

Filed July 29, 1927. 5 sheets-sheet 1 VENToRs.

A TTORNEY.

w. KIRCHNER ET AL TURNING AND HEADING'MAGHINE March 18, 1930.

Filed July 29 `l 1927 @s ,sheets-sheet 2 omv 3 A ATTORNEY.

March 18, 1930.` w. KIRCHNER ET AL 1,750,932.

TURNING AND HEADING ,MACHINE lFiled July 29, 1927 s sheets-sheet 3 -WLATTORNEK Patented Mar. 18, 1930 UNETED `STATES WILLIAM KRCI-INER AND FRANK Jr SHELDON, OF SPARTA, WISCONSIN TURNING AND HEADING MACHINE Application led July 29, 1927. Serial No. 209,304.

MThis invention relates to improvements in turning and heading machines, and although the invention is primarily adapted for use in the manufacture of posts, it is also readily adaptable for various other uses.

`The invention has for its object to provide a machine wherein a post or other object may be turned down to the desired size and shape or otherwise wrought upon and which, co-

incident with the turning operation, heads or shapes the extremity of the post without requiring any additional work on the part of the operator.

A further object of the invention is the provision of a machine wherein the cutter and header elements are both driven from a l common driving source.

A further object of the invention is the provision of a carriage for the' work and means for yieldably advancing the carriage as the cutting operation progresses and for returning the carriage to initial position after the completion of a post.

A further object is the provision of means for permitting interruption in the operation of the work piece during return movement of the carriage.

A further object of the invention consists in the embodiment in a machine of the character described of such structural features as tend to increase its efficiency and convenience of operation without, however, involving structural complication or unnecessary expense of manufacture.v

in the accompanying drawing:

Fig. 1 is a top plan View of the machine;

Fig. 2 is a side elevation thereof;

Fig. 3 is a view similar to Fig. 1 showing the carriage advanced to a position to engage the work with the headingcutter;

Fig. 4 is a section on the line 4-4 of Fig. 3;

Fig. 5 is a transverse section through the frame and carriage; Y

Figs. 6 and 7 are detail views of the main and head cutters, respectively;

Fig. 8 is a partly sectional end view from the right hand end of the parts as shown in Figure 1, representing the arrangement of the friction drive wheels;

Fig. 9 shows a side view of the yoke shaped auxiliary holder fixed to the side rail vas set 4forth in Figure 3.

Referring to the drawing in detail:

The numeral 5 indicates a suitable supporting structure on which the side rails 6 are mounted, the latter constituting a combined support and guide forthe carriage 7 which is movable longitudinally of the guide vrails 6. A work support and actuating means is provided as shown comprising a driving member or chuck 8 mounted on the carriage 7 and provided with work clamping screws or equivalent means 9 by which the work is rigidly clamped in the support or holder 8. The opposite extremity of the work piece is centered by a tail stop 10 which is borne by the extremity of the carriage 7.

A sprocket wheel 11 is fixed to the rotatable work holder 8 and coacting with a chain 12 is driven by a sprocket wheel 13 carried by a shaft 14 journalled in bearings 15 carried by one of the rails 6. The shaft 14 is slotted from end to end and the wheel 13 is slidably ,keyed thereon, being moved along the shaft incident to travel of the carriage by a yoke 7 shaped member 16 fixed to the carriage 7 and having forked extremities embracing the shaft 14 and confining the wheel 13. Y

The shaft 14 from which rotary motion is imparted to the work holder 8 is driven from- P a shaft 17 through the medium of gear wheels 18.

A pair of shafts 19 and 2() mounted on the guide rails 6 coact with a iexible cable 21 to effect feeding and return movements of the carriage 7. 'The extremities of the cable are wound about the respective shafts 19 and 2O i and extending longitudinally of the frame, constituted in part by the rails 6, are engaged at the opposite end of the latter over a guide pulley 20a supported by the transverse shaft 20b borne by the ends of the siderails as set forth in Figure 1, the cable being fixed intermediate its extremities to an arm 21a carried by a cross member 2,1b of the carriage 7 t whereby rotation of one or the other of the shafts 19 or 2O effects longitudinal movement of the carriage 7 in the desired direction.

" One extremity ofeach shaft 19 and 20 is journalled on a common bearingr22 which is slidablymounted on the adjacent rail 6,' and v*is movedfrom one position to thejother bya tremities of the shafts19 and 20 are suit-ably mounted to permit the necessary lateral movement ofthe first mentioned/ ends incident to sliding movementof thejbearings 22. The bearings 22 for the transverse shaft 19,

and the like bearings .for the fellowtrans?v V'verse shaft 20 arecarriedby 'base' plate 22a Vwhich rests and slides lengthwise upon the side rails 6, and as the lever 23isop`e'ratedV the friction wheels 25fare alternately'brought f into engagement with the Vdriven friction Vwheel-'24. f- Eachy shaft 19 and-y20 carries a friction drive wheel 25 andv these are alternately` engageable with a central drive lwheel 24Yfixed to the shaft 17 l A beltor other power transmitting element Y 27 is trainedovera wheel 28 fixed to the shaft Y 17 and is engaged atropposite endsY over a pulley fixed tothe drive shaft v29 on which the main cutter 30 is fixed. The cutter 30 is preferablyj'ournalled in a bearing 31 and is interchangeable so as to permit variation 4of the shape and diameter of the ,workV turned out. f"

At the extremity ofthe; frame opposite the shaft29- the heading cutter 32' is provided mounted on a shaft 33 journalled in bearings lirand driven fromthe shaft 29 by a belt 85.

The purpose of this heading cutteris to headv f or shape the endoffthejwork, that is, to give the endv of the post the shape desired. v ln thedrawings the specific heading cutter eml ployed is 'designedtoVA give the end of-the 'post a rounded appearance, although itwill be -readily understood ythat it may be given vva rious other configurations as desired dependil.ing onthe lcharacterofy heading cutter em- Y Y ployed.

The size Aand shape of the `cutter 32 v may .be adequately variedvr according 'tothe desired shape of the post orother work to. be

Vturnedjout, and as the;latterapproache'sV the cutter 32V it'A is partiallyxenibraced and (supported by a lyokeshaped auxiliary holder 36' lixedto'one'of the'sidefr'ails 6. Y f

i 'In order that the rotary' movement ofthe Yshaft 14' and consequentlyzthe holder 8 and work may be temporarily Vinterrupted duringthe return movement of the carriage 7, a

clutch 37 is interposed. between the shaft 17 1 lisladnfmced'by the cable 21 andthecutteiri),V turns thel work-down tothe desiredlsize. 'Asv vand gear wheel18, and maybe conveniently operated inany suitable manner. v I

The operation `of 'the machine is extremely,4 e simple requiring merely the setting and?, :clamping of the ywork intheuholder 8 tofvv YgatherA with properadj'ustment of the main cutter 30 and the'selection of a heading` cut-V `4-er1g32 of VtheV desired shape. Upon shifting vthe lever i273V to engage the propery friction Vend shaping cutter.

the terminal of the workapproachesjthe cut-` ter 32 it is embraced by the holder 36 and held inposition where, coincident withtheA operation of the cutter 30, the postis headed bythe cutter 32; 7 y

A further important feature of the inven. tion consistsl in that the tail ,stock 10 is ca'- pable of'adjustment by means of a slot and screw connection 1()a permitting it to be dis-V placed laterally with respect to the axis of the Vmachine whereby posts of tapering form may be turned; The work holder 8 is further provided with a downwardly projecting pillar 9a securedto" the cross member 21b by screw 9b. To move. the axial line of the work sidewise in order that a tapering post may be turnedV an ad-A justment of the tail stock 10 and'work holder 8 are correspondingly made.

What wel claim is: Y y.

1. A. turning machine including a frame, a carriage movable therein, work supporting and rotating means mounted on saidcarriage, a main cutter mounted on said frame, and a cutterfor shaping the end ofthe work, the cutters being so positioned and the work supporting and rotatingf'means being so ranged that at least a portion of oney end of the work shall be exposedY and `so that the work-shall be rotated and carried bythe carriagepast the main cutter to shape the length .Y

of the work while the exposed portion fof the l cutter vfor shaping the end of the work, the" cuttersbeing so positioned andthe work supporting and rotating means being so arranged that at leasta portion ofone end ofthe work shall be' exposed and so that the work' shall berotated and carried by the carriage past the V,main cutterjto shape the length of the work while theexposedportion of the end f f Y ofthe work, is brought vupg'against the end VVshaping cutter to be shape'dsthereby atv Vthe end ofthe travel ofthe vvorlnandY anfauxil- Vi'arywork,holder engageablefby andV for supy porting Vthe workas the latter approaches theV f ln testimony whereof weV a'iixzour-l signatures. e f Y VLLEAMSKRGHNER..

, J. SHELDG.

ino

wheel 25 with the drive wheel 24 the carriage.Y i'

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