US1332798A - Machine for automatically nosing in shells - Google Patents

Description

D. BROWN. MACHINE FOR AUTOMATVICALLY NOSING IN SHELLS.

. APPLICATION FILED MAY 18, 1918.

1,332,798. Patented Mar.2,1920.

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0. BROWN. MACHINE FOR AUTOMATICALLY NOSING IN SHELLS.

APPLICATION FILED MAY I8, 1918- Patented Mar. 2,1920.

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Brown.

D.- BROWN.

MACHINE FOR AUTOMATICALLY NO SING lN SHELLS.

APPLICATION FILED MAY l8, I9l8.

Patented Mar. 2, 1920.

3 SHEETSSHEET 3.

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DAVIS BROWN, or Bucimus,

OHIO, ASSIGNOR TO THE AMERIC AN EQUIPMENT COMPANY, A CORPORATION OF OHIO.

To all whomif may concern: Be it known that I, DAVIS BROWN, a citizen of the United States, and resident of Bucyrus, in the county of Crawford and State of Ohio, have invented an Improvement in Machines for Automatically Nosing v in Shells, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts. chine for handling cylindrical castings, or forgings, particularly the shell blanks of large size and weight which are SubJected to a hammering or nosing in process to close the open end of the forging at a suitable bevel or point. My machine is particularly directed to provide improved and automatic meanswhich will enable a large heavy shell forging, with the portion to be subjected to. the nosing or hammering dies or press, while heated to the proper temperature for this process, to be gripped firmly, rotatedevenly, and fed forwardly into the press at a proper speed consistent with the hammering and nosing in action of the press, and with an My present invention is ,an improved mai elasticity of feeding drive which will permit in; the open end of such shell in'position guiding the momentary stoppage of the forward feeding action at the instant of the closing *of the dies. ,Preferably, also, the feeding means is sufliciently elastic to permit this momentary interruption and then to continue the feeding movement without undue strain, damage or injury.

During this feeding and nosing inaction, I also prefer to have the shell continuously rotated, excepting for the momentary interruption upon closing of the dies so that the beating and nosing in will be uniform. throughout the circumference of the shell, the dies employed in the nosing in pressbeing of substantially correct contour for the finishedgyortion. A considerable range in the size of shells is thus automatically taken .care of by the same dies, the constant rotation of the shellgenabling the dies tobeat shells to a uniform contour although I prefer to have dies of correct contour for the finished shell of each different diameter. Automatic means are also provided which will support the and holding it until 7 it is clasped by'the chuck or other device employed, and furthermore aiding in sup- I Specification of Letters Patent. Application iiled May 1 8, 1918. Serial No. 235,244,

- movement of the carriage and same in cooperating position.

, and 7 supported on a standard MACHINE FOR AU'IOMATIGALLY NOSING IN SHELLS.

Patented Mar.2, 1920.

\ porting the shell when it is released by the crane or hoist handling it and continuing this supporting position until the forward part is actually resting in the lower nosing in die, whereupon the support is automatically removed to be again replaced in shell supporting position when the completed nosed in shell is withdrawn from the dies. N y meansof air pressure and suitable valves, the operation of my improved machine is readily controlled from a single point by one attendant, the operator actuat ing the chuck to engage, grip and hold the shell forging when it is lowered in position, securing the same rigidly at the opposite end of the cylindrical casting to that which is heated, and ready for the nosing in press, then rotating the chuck thus holding the shell and feeding the entire chuck and shell holding carriage forwardly to the dies in the nosing in press, continuing this feeding action until the completion of the operation and then by a further control reversingthe withdrawing the completed shell from the dies, permitting the crane or hoisting device to engage the therefrom, all automatically.

Referring to the drawings illustrating preferred embodiments of the invention,

Figure 1 is a side view, partly in cross section, illustrating my improvedmachine;

Fig. 2 is a plan View; and

Fig.' 3 is an end view.

Referring to the drawings, I provide a firm and solid base 1,'for the machine, extending entirely under the holding the movable part ofthe machine firmly to the dies to take up the thrust of the dies in operating and also to properly time the mechanism therewith and hold the On the for- Ward part of the base 1 is a porting the movable carrier 3, the latter sliding on the frame 2 by suitable guidways, suclr as the ribs 4 and grooves 5, this carrier moving toward and from the dies 6 8 at the other end of the base on lower die 7 is rigidly secured on the stand ard 8 while the upper die 6 is reciprocated 7 toward and from the lower die, being actuated in any usual manner,

raising and, lowering a raised portion 9. The

frame 2, sup- I the upper die, which runs in guidew ays.

- This die operating mechanism is. not shown,

being of -wellknown or any suitable type.

The carrier 3 has a depending web 10 extending downwardly and centrally into the frame 2, said Web having a hub 11 through which the stem 12 passes, this stem extending into an air cylinder 13 and being connected with the piston 14, located in the frontof the frame 2. Check nuts 15, 15, hold the hub 11 in any desired longitudinally adjusted position on the stem 12 which has its outer portions threaded for the purpose. This construction enables the carrier 3 to be secured in any position toward or from the dies 6 and 7, allowing for different lengths of shells to be handled by the machine, the travel of the carrier 3 toward and from the cylinder 13, and the feeding and retracting movement thereby of the piston 14 therein.

On the carrier 3 is secured the shell holding chuck devices and the means to grip and hold the shell, means to support the same, and means to rotate the shell during the forward feeding movement of the carrier. Mounted on the carrier 3' is a carriage 16, provided with a framework having bearings 17 and 18 for a hollowrotatable sleeve 20, which is preferably enlarged at the hearing 17 into a hub 19 and at the bearing 18 into the hub 21. At the outer end of this sleeve 2.0 is secured a gear wheel 22 adapted to mesh with a pinion 23 whichlis rotated by a motor 24 on the shaft of the pinion 23 mounted in bearings 25 and 26 at the top of the upv'v'ardly projecting arms of the framework 16. This motor is preferably air driven to provide an elastic drive, so that when the shell which is being carried and rotated through the actuation of the pinion 23 and gear 22 is gripped by the dies momentarily in their beating'and hammering action,there will be suflicient resiliency in the drive to permit this temporary stoppage of rotation without injury. At the other.

end of the sleeve20 is/a flange 30, carrying a flared member 31. secured to said flange by bolts 32, 32. In this flared member .31 is secured a split chuck 33, also having its outer surfaces beveled to bear andslide upon the-inner portion of the flared member 31. This chuck is moved outwardly relatively with the member 31, thereby permitting it to expand and engage the rear portions 34 of a shell 35 to be handled by the machine,

said shell having its forward portion 33 heated to a sufliciently high degree to enable the dies 6 and 7' to beat, hammer or nose in said forward portion, thus pointing the shell. The operation of the chuck 33 is controlled by a double acting air cylinder 40, mounted outside the gear 22 on the sleeve 20-and acting on the chuck 33 to move the same forwardly and backwardly within the dies being controlled by the air flared member 31 by the rod 41 passing throughthe sleeve 20 from the cylinder 40 t the slide 42, which has its head 43 secured to the chuck members 33 by a flange and dovetailed connection as shown at 44,

thus permitting the chuck members 33 to,

air pressure is-led thereto through a p1pe 49 to a main pipe 50, which latter also supplies air through the valve 51 to the motor 24.

In the operation ofthis machine it is dey sirable to lower the shell 35 with its .hlghly heated end 36 to be hammered in, into position, where the chuck 33 may conveniently and quickly engage and hold the same, and for this purposeI have provided novel means to support the shell and aid in guiding it to the clutch 33 and thereafter to aid in holding it as the carrier 3 moves forwardly, un til the forward portion of the shell engages and rests uponthe lower die 7. Thereupon this support is automatically removed from engagement is freely supported between the chuck and .die, while taking up the rotation of-the chuck. To this end I provide a roller 55 mounted between rocker arms 56 and 57 securedto a shaft 58 extending through suit able bearings 59 at the forward portion of the carrier 3. The shaft 58 runs outwardly at one end where-it isclamped by a controlling arm 60, said arm extending down-i wardly with a portion 61 of sufficient length to rest upon and engage a roller 62 mounted in a support'63 on the frame 2 during the forward travel of the carrier, until the shell 35, after-it is gripped by the chuck 33, has its forward or nose portion resting safely and firmly on the lower die. Thereupon the carrier, w1ll force the portion 61 of thisfcontroller off the rdller62, allowing the roll 55 to drop away from the shell and leave itTinsupported, excepting between the chuck and the dies. It will 'be appreciated, on reference to Fig. 1, that when the shell 35 is en gaged by the chuck 33 and drawn backwardly, from the position as shown in Fig. 1, that the roller 55 will constitute a support with the shell, so that the shell for the shell sufiiciently forward of the I chuck 33 to hold the shell in alinement with the dies and to relieve the chuck from the strain otherwise produced by the extreme moving it forwardly carrying the ch sprocket sufliciently in advance of the chuck 33 to provide an appropriate fulcrum for the support pf the shell after it is being held and rotated by the chuck while the carriage 3 is moving forwardly. To operate the chuck, to engage the shell 35, I prefer to mount-the carriage framework 16 uck and operating mechanism as above described, 'as a slideway, upon the carrier 3, a rib and groove arrangements 64 and 65, similaroto the ribs 4 and 5 of the carrier 3 and frame 2 is provided, this upper carriage/l6 having a dependinghub 66, engaged by a shaft 67 running through a bearing 68 in the carrier 3 with a beveled gear 69 at one end in mesh with a corresponding horizontally mounted gear 70 on the shaft 71 leading outside thep carriage .3 and as herein shown is operated by a sprocket wheel 7 2, sprocket chain 7 3 and upper wheel 74 on a shaft 7 5 carried by brackets This arrangement for feeding the chuck for wardly 'and backwardly by means vo'f the hand wheel 77, as just described, can be also operated by pneumatic power, particularly in machines, for handling large shells, thus facilitatin speed of operation. This additional fee ing arrangement is also useful in permitting the final feeding actiory of'the' shell into the dies. By moving the entire "carrier 3 quickly forward through actuation of the air cylinder 13 as heretofore described, until the carrier strikes against the porting 1 moving stop 80, which can be effected quickly, and then feeding the chuck forwardly by rotation of the wheel 77, either by hand or power, thus feeding forwardly the. shell during the final hammering and nosing in action of the dies,

the chuck 33 and constantly rotated. As soon as the nosing inprocess is completed the carrier 3 may be rap-idly withdrawn through actuation of the air cylinder 13 the piston 14in the opposite direction from that of the feeding movement, such retraction of the carrier 3 swinging the supporting wheel again into shell supporting position when the controller runs upwardly on the roller 62 during the backward mqvement of the carrier 3, thus supthe shell when it is removed from the dies 6 and 7, and holding the same until the crane or other lifting devices engages the shell. 35 and the chuck 33 releases the shell, permitting it to be removed and an- I other heated shell to be fitted for the nosing 7 6 and engaged with a 'wh'eel 77.

.ward and from said dies,

while the shell is held firmly in .completed', and is therea ter automatically brought into shell supporting position while it is withdrawn from the dies, thus producing an extremely simple yet eflicient and quickly operating nosing in. apparatus.

My invention is further described-and defined in the formof claims as follows:

1; A machine of the kind described, comf prising pressing dies, a carriage to hold said chuck movable toward and from said dies, a carrier having the carriage slidingly mounted thereon and elastic fluid means to move the same, a work holding support mounted onsthe carrier and movable therewith, supporting the work during a portion of the travel ofv the carrier and automatically withdrawing from work a shell holding chuck,

supporting position at a predetermined time.

prising pressing dies, a shell holding chuck, a carriage to hold said chuck movable to a carrier having the carriage slidingly mounted thereon and elastic fluid'means to move the same, a work holding support mounted on the carrier and movable therewith, supporting the work during a portion of the travel of the carrier and automatically withdrawing from work supporting'position'at a predetermined time,

and automatically being restored to work engaging position during retraction of the carrier from said press.

3. A nosingin press of the kind described,

comprising a pair of dies, a carriervmovable toward and from said dies, a carriage mounted on the carrier, a chuck secured to said carriage and having an expansible and contractible shell holding chuck thereon,

means to rotate said chuck, a work support on the carriage mounted in advance of said chuck, cooperating with the chuck to hold work in alinement with said dies, and automatic means to remove the work holder when the work is fed. into the dies, said work holder permitting longitudinal and ro- "ta'ry movement of the work while in contact therewith.

4. A nosing in press of the kind described, comprising a pair of dies, a carrier movable toward and from said dies, a carriage mounted on the carrier, a chuck secured to said carriage and having an expansible and contractible shell holding chuck thereon,

means to rotate said chuck, a work support J 2. A machine ,of the-kind described, comon the carriage mounted in advance of said chuck, cooperating with the chuck to hold I Work in alinement With said dies, and au-- tomatic means to remove the Work holder when the Work is fed into the dies, an arm controlling the position of said Work support, and means cooperatingwith said arm gaging position durin two subscribing Witnesses.

work holder to Work engaging position durmg the retracting movement of the machine.'

In testimony whereof I have signed my name to this specification in the presence of DAVIS BROWN.

Vvitnessesz LAURA M. ASH, BLANCHE SHEALY.

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