US1835528A - Shaping machine - Google Patents

Description

E. S. ROE

Dec. 8, 1931.

Filed Feb. 27, 1928 4 Sheets-Sheet 1 awueutoz 172-2265 L S fla Dec. 8, 1931. E. s. ROE I 1,835,528

SHAPING MACHVINE Filed Feb. 27, 1928 4 Sheets-Sheet 2 in? II I I521 32 L. l n I H W 50 m v vi 2? awueuto'o J/ I est ,8. Rae

Dec. 8, 1931. s ROE 1,835,528

SHAPING MACHINE Filed Feb. 27, 1928 4 Sheets-Sheet 3 lHlll I:

anvenlioz SHAP ING MACHINE Filed Feb. 2'7, 1928 4 SheetS-Sfieet 4 Ill 5 Ill ITE QS w j ects toprovide a machine of the above char- Patented Dec. 8 1931 ERNEST s. Ron,

OF PLYMOUTH, MIGHIGAN'QASSIGNOR T KING MANUFACTURING COM-'- PANY, OF PLYMOUTH,MICHI GAN, A CORPORATION OF MIGHIGAN SHAPING MLACHINE' Application filed February 27, 1928. Serial .No. 257,430.

This invention'relates generally to shapingmachines and more particularly to a ma chine designed for shaping gun stocks from blanks. I

v The inventionyhas as oneofits primary obacter which simple in construction and positive in operation and one thatis capable of expediting the production of the gun stocks-- ,A novel featureof construction of this invention which contributes materially to sim-' plifying the method of manufacture and facilitating production as wellas reducing the cost of production,v resides in the particular shaping mechanism which is so designed as to accurately finish-bothsides of the work in a single cycle of operation. 7 j j vWhile in particulariz'ing upon he advantages and features of the; present invention, particular stress has been placed upon the fact that themachinc herein illustrated and described findsparticular utility in the manufacture of gun stocks, many of the objects of the invention may be accomplished'in a construction wherein the basic principles of the present machine may be-utilized for shap ing various otherarticles and'accordingly the invention contemplates such an 7 arrangement.

Other objects and advantages of the'invention reside in the peculiar construction ofthe machine illustrated and: about to be, idescribed.

Referring mule drawings Figure 1 is a perspective-view of the machine embodyingmy invention; 7 v v.

Figurej2" is atop, plan ,view of the construction illustrated in Figure 1; j r

Figure 3 is a detail view showing thelblank in operative relation to the cutters; I

Figure 4 is an enlarged detail view partly in section of the work holder;-

Figure 5 is a sectional elevation showing the operating means for-the cutters;

Figure'6 is an elevationalview showing the means for operating the work carriage.

Figure 7 is an enlarged detail view show,-v ing one of the blanks in engagement with the guide member. v v I Inwgeneral the machine as illustrated in the above figures, comprises a bed plate 10 apertured at 11 forreceiving the drive shaft.

12 which is journaled within the bearing block 13 rigidly secured to the bed plateby means of the bolts 14:. Keyed; to the shaft 12 at the lower end thereof is a bevelled gear 15 arranged to mesh witha gear 16' secured to the shaft 17, which in turn is driven from. a suitable prime mover not shown. Secured to the upper end of the shaft 12 is a plate 18 having the radiallyextending slots 19 there in'for receiving the inner'endsof the radi ally extending frame members 20. Suspended from theseframe members isa circular frame or ring 21, secured at equally spaced points alongthe circumference thereof to the members 20 by means of the bolts 22. As shown, the frame 21 is arranged to travel in close proXimityto-but out of; contact with the bed plate 10. In order to insure the proper spaced relation between the frame members 20,'frame 21,.andbedplate 10, the

tubular spacers 23 are-provided. These spacers are disposed between the :frame members. 20 and frame 21 and are held in place-by means of the bolts 22. Thus from the foregoing, it will be noted that upon rotation of. the drive shaft 17, the vertical shaft 12 will be correspondingly rotated andowi'ng to the fact that the plate 18, frame members 20 and" ring 21 are connected as a unit with the Ver tical shaft12, these parts will likewise rotated. I .'1 i

Positioned upon the bed plate 10, adjacent the. periphery of the ring 21 is a: guide 241.

. having an arcuate portion 25 coincident with the ring 21 and terminatingat one end in an offset portion 26, Whichas shown is-spaccd a substantially greater distance from the periphery of the ring 21 than the-arcuate port on 25 for reasons to bemore fully hereinafter set forth. Secured to the bed plate 10 opposite the guide 24 within the circumference of: the ring 21, is a suitable work receiving tablef27 the top of which is substantially hat and is spaced a suficient distance above thesurface of the bed plate 10 to be in alignment with the work holders 28.7 As shown, particularly in. Figure 4: of thedrawings,the work holders are pivotally connected at the forward ends thereof to the ring21, and each of these holders include a base portion 29 pivotally secured to the ring 21 by means of the bolts 30, a top plate 31 secured in spaced relation to the baseby means of the upright members 32 and a fixed work supporting portion 33 formed upon the base 29. Each of the said work holders is also provided with a suitable clamping mechanism indicated generally by the reference character, 34 and consists in a clamping plate 35 normally held out of engagement with the work 36 by means of the tension springs 37 connected at one end to the plate 35 and at the opposite ends to the top plate 31. As shown, the top plates 31 of the holders are slotted as at 38 to receive the cam portions 39 of the operating handles 40. These handles being preferably pivoted to the top plates 31 by means of the transverse pins 41. The active surfaces 42 of the cam portions 39 are developed substantially as indicated in Figure 4 of the drawings, so that upon'swinging the handle 40 in a clockwise direction, the cam portion will engage the plate 35' and force the same into firm engagement with the work.

For accurately finishing both sides of the work as the same is being conveyed by the ring 21, the cutters 43, and 44 are provided. As shown, these cutters are arranged upon diametrically opposite sides of the center of the .ring 21, the cutter 43 being positioned a predetermined distance exteriorly of'the ring 21, while the cutter 44 is ositioned adjacent the inner periphery of the ring. The cutters are slida ly mounted within the slots 45 and 46. formed in the rings 47 which are keyed or otherwise suitabl secured to the shafts 48 and 49 journale within the bed plate 10 and connected in any suitable manner to a prime mover not shown. Thus it will be apparent that the cutters are adjustable relative to the work and are held in their adjusted positions by means of the rings 50 slidably'mounted upon the shafts 48 and 49 having slots 51 and 52 therein cooperating with the slots 45 and 46 formed in the ring 47 to clamp the cutters in position. Any suit-. able means may be employed for holding the rings 50 in clamped position herein shown ascomprising the lock nuts 53 threadedly engaging the shafts 48 and 49.

' Thus from the foregoing, it will be apparent that the cutters 43 operate upon the outer edges of the blanks to fashion the same, while the cutters 44 operate upon the inner edgesof the blanks to fashion the latter. For urging the blanks into engagement with the cutters, I provide the two sets of spring pressed rollers 54 and 55. As shown, these rollers are journaled within the bifurcated portions 56 and 57 formed uponthe ends of the levers 58 and 59 respectively, which in turn have their opposite ends pivoted to the bed plate'10. Two sets of springs 60 and 61 act upon the levers 58 and 59 to normally urge the rollers into engagement with the work supporting portion 33 of the pivotal work holders 34, and tend to swing the latter about the pivotal connections thereof to the ring 21 in a direction toward the cutters 43 and 44. In order to limit the extent of swinging movement of the work holders toward the cutters I provide the guides 62 secured to the bed plate 10 and having a portion 62 surrounding the shafts 48 and 49 immediately below the rings 47 and are arranged in substantially the same horizontal plane as the work holder's so as to form an abutment therefor. If desired, a third set of rollers designated generally by the numeral 63 and of substantially the same construction asthe rollers 54 and 55 may be provided opposite the guide 24 in order to maintain the work holder opposite this guide into engagement therewith.

In order to positively and automatically eject the work from the machine after the same has been operated upon by the cutter 44, I provide a member 64 extending upwardly from the bed plate 10 and terminating atthe upper end thereof in a lateral projecting portion 65. This lateral portion is designed to project across the path of travel of the handles 40 for the clamps 34. Secured to the upright member 64 and arranged to contact directly with the work when the latter is opposite the upright, is a yieldable'member 66. The arrangement being such that when each one of the work holders assumes a position slightly rearwardly of the cutter 44, the projection 65 will engage the handle 40 and swing the same in a counter-clockwise direction about the pivotal connection 41 to release the pressure exerted by the cam portion 42 of the lever 40 upon the clamping plate 35. The latter, under the action of the tension springs 37 will immediately assume its inoperative position and the yieldable member 66 will instantaneously eject the work from its position between the supporting plate 33 and the clamping plate 35.

Referring now to the general operation of the machine, and assuming that the ring 21 is revolving at a relatively slow rate of speed and that the several parts of the machine are in the position illustrated in Figure 1 where in the clamp opposite the guide 24 is in inoperative position. I

After the machine has assumed the above position, a blank is placed upon the table 27, the flat surface thereof being spaced a predetermined distance above the bed plate so that upon feeding the blank radially outward toward the guide 24, the same will travel between the clamping plate 35 and work supporting portion 33. The extent of outward movement of the clamp being controlled by the guide and after the outer edges of the blank engage the arcuate portion 25 of the guide the operator merely grips the handle 40 and swings the same in a clockwise direcmamas tion about the pivotal connection 41. This movement of the handle, as heretofore pointed out causes the cam to engage the plate 35 and moves the same against the action of the springs 37 into gripping engagement with the work. The spring influenced rollers 63 act upon the work holder to normally keep the free end of the same in engagement with the guide 24. Upon continued rotation of the ring 21, however, the work holder will be moved out of engagement with the arcuate portion 25 and consequently out of engagement with the rollers 63. The free end of the holder will then be forced outwardly by the rollers 55 placing the blank in operative relation with the cutter 43. The extent of outward movement of the rear end of the holder being limited by the offset portion 68 formed upon the projection 26 of the guide member. When this holder is in the foregoing position, it will be noted that the outer edge of the work extends substantially tangentially of the ring 21 during the cutting operation. After the cutter 43 has completed its operation, the work is moved around into engagement with the cutters 44 which operate to finish the inner edges of the blank. Upon the completion of this latter operation the work holders are moved into engagement with the automatic releasing and ejector mechanism, the particular operation of which has been clearly discussed in the foregoing description.

Thus from the foregoing, it will be apparent that the herein described invention renders possible the production of a machine capable of expediting and simplifying the method of manufacture and one that requires the minimum amount of attention during operation.

In view of the obvious changes which may be resorted to without departing from the spirit and scope of this invention, reservation is made to make such changes in the details of construction as may come within the purview of the accompanying claims.

lVhat I claim as my invention is:

1. In a machine for shaping blanks, the combination of a rotatable frame, a work engaging clamp carried by said frame having an operating handle, a member positioned adjacent said frame having a portion extending within the path of travel of said handle to automatically operate the same to release said clamp, and a yieldable member mounted upon the member aforesaid and operableto instantaneously eject the work from said clamp upon the operation of said clamp releasing means. 7

2. In a machine for shaping blanks, a rotatable annular frame, a cutter arranged within the boundary of the frame, a second cutter spaced from the cutter aforesaid and positioned exteriorly of the frame, a work holder carried by the said frame, means engageable-with the work holder upon rotation of the frame to cause the work to swing outwardly to engage said second mentionedlcutter to shape one edge of the work, and means operable upon continued rotation of the frame to swing said holder inwardly to cause the work to engage said first mentioned cut-, ter to shape the opposite edge of the work.

3. In a machine-for shaping blanks, the combination with a bed plate and shaping tools supported thereby, of a work carrying frame rotatably mounted upon said bed adj aoent thetools aforesaid, means for rotating the framefrela't-ive to the bed and for supporting the frame in spacedrelation to said bed, said means including a shaft extending through the said bed, a head secured. to said shaft'having radially extending slots therein, a plurality of bars secured within said slots and extending radially therefrom. and means connecting said bars to said frame.

,4. In a machine for shaping blanks, the combination of an annular frame rotatable in a substantially horizontal plane, a cutter positioned eXteriorly of the frame, a workholder mounted upon said frame and movable relative thereto, means normally urging said workholder in .a direction toward said cutter, and a guide positioned adjacent to said frame for restricting movement of the workholder relative to the frame, said guide having a portion arranged to engage the workholder and maintain the same in a position wherein the work to be operated upon is extended substantially tangentially to the annular frame during the cutting operation.

5. In a machine for shaping blanks, the combination of an annular frame rotatablein a substantially horizontal plane, a cutter positioned adjacent the periphery of the frame, a workholder having one end pivot ally connected to the frame, means opposite said cutter and engageable withthe workholder to normally urge the same in a direction toward the cutter, and means engageable with the free end of the holder to maintain the latter in a position wherein the work is extended substantially tangentially to the frame.

6. In a machine for shaping blanks, the combination of a rotatable frame, a cutter positioned exteriorly of the frame, a work clamping member. mounted upon said frame and movable relative thereto, yieldable means normally urging said work clamping member in a direction toward said cutter, and a guide positioned adjacent to said frame for restricting movement of the work relative to the frame, said guide having a portion engageable with the work clamping member to maintain the latter in a position tangentially to the rotatable frame during the cutting operation.

7. In a machine for shaping blanks, the

combination of. a rotatable frame, a ring susa.

pended from said frame, work engaging clamps carried by said ring having operating handles, cutters positioned adjacent the ring and adapted to successively shape opposite sides of the Work upon rotation of said ring, a member positioned adjacent the path of travel of the ring and adapted to successively engage the operating handles of said clamps, subsequent to the shaping operation, for automatically operating the same to release said clamps.

8. In a machine for shaping blanks, the combination of a rotatable ring, a work-em gaging clamp carried by saidring having an operating handle, cutters positioned adjacent the ring and adapted to successively shape opposite sides of the Work upon rotation of said ring, a member positioned adjacent the path of travel of the ring and adapted to engage the operating handle of said clamp subsequent to the shaping operation, to automatically operate the same to release the clamp, and a yieldable member engageable with the Work'and operable to automatically eject the Work upon the releasing operation of said clamp.

In testimony whereof I aflix my signature.

ERNEST s. ROE.

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