US741181A

US741181A - Multiple punching-machine.

Info

Publication number: US741181A
Authority: US
Inventors: John S Stevenson
Original assignee: American Car and Foundry Co
Current assignee: ACF Industries Inc
Priority date: 1902-11-06
Filing date: 1902-11-06
Publication date: 1903-10-13
Anticipated expiration: 1920-10-13

Description

No. 741,181-, PATENTED 00T. 13. .1,903.- J.' s. STBVENSON. MULTIPLE PUNGHING MACHINE.

` APVPLIOATION FILED NOV. 6.1902. 0 MODEL.' 2 SHEETSj-SHBET 1.'.

Ng 741,181. l BATENTED 00,113,1903.

J. s. ,smv-msnm. MULTIPLBPUNGHNG MACHINE.

APPLICATION FILED N0`V.6,1902. Y NO MODEL.

2 SHEBTSQSHBBT 2.

NTTED STATES Patented october 1a, 190e;

PATENT Tricia.

JOHN S. STEVENSON, OF DETROIT, MICHIGAN, ASSIGNOR TO AMERICAN CAR da FOUNDRY COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

SPECIFICATION forming part of Letters Patent No. 741,181, dated October 13, 1903?.

Application filed November 6, 1902. Serial No. 130,265. (No model.)

To @ZZ whom it may concern:

Be it known that I, JOHN S. STEvENsoN, a citizen of the United States,residing at the city of Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement, in lMultiple Punching-Machines, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to Whichit appertains lo to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Fignre l is a plan view of the bed of the machine. Fig. 2 is a broken front elevational view. Fig. 3 is a side view of the gap of the machine. Fig. 4. is a View similar to Fig. 8, partly in section, to better illustrate details of construction. Fig. 5 is a sectional view on line 5 5 of Fig. 2,` and Fig. 6 is a detached zo view showing details of construction.

This invention relates to a certain new and useful improvement in multiple punchingmachines.

The object of .this invention is to produce z 5 a power-controlled multiple punching-machine in which a portion of the punches is held in relatively fixed position and the companion punches are movable longitudinally across a portion of the machine, movement 3o of the punches at opposite sides being synchronized so as to insure uniform spacing of the same from a central point, said parts b eing adjusted to scales which determine the amount of movement thereof and moved by means of a suitable motor connected directly to the driving-gears.

To that end the present invention consists of the features of construction and arrangement of parts, all as hereinafter fully de- 4o scribed, and specifically pointed out in the claims.

Referring to the drawings, A represents a broken portion of the frame of a power-punch with only that portion thereof surrounding the gap being shown, as it is only that portion of the machine with which my invention cooperates. i

B represents the lower portion of the frame,

C the upper portion, and D the yokes at the ends, which yokes are integral with the frame of the machine.

Resting upon the lower portion of the frame are bed-blocks l, 2, and 3, the blocks l and 2 being movable longitudinally and the block 3 being held iirmly in the central portion of the length of said bed portion of the frame by means of the bolt ct passing through the bed into said block 3. Coincident with said blocks l, 2, and 3 and above the same are the slidable head-

blocks

4, 5, and 6,1'espectively, which are carried on the vertically-movable head-piece 7, the blocks l, 2, and 3 being held in position in the bed by the dovetail section b iitting in a corresponding channel in said bed and the

blocks

4, 5, and 6 being also provided with dovetail portion c fitting in a similar channel in the head,\to.which head is imparted reciprocatory motion for the punching operation in the usual manner characteristic of this class of machines and being Well understood will not be described in detail. Secured in like 4manner to the upper face of blocks l, 2, and 3 and the lower face of blocks 4., 5, and are

slidable blocks

8 and 9, which carry, respectively, the female members 10 and the male members 1l of the punch proper, and it is to secure proper positioning of these members that is sought by the present invention by power-operated. means characteristic of this machine in contradistinction to the manually-operated machine shown and described in the applica--a tion for'patent for'multiple punching-machine iiled herewith. To that end the

blocks l

2 and 4. 5 are provided with the said dovetailed extensions, through which are' projected screw-threaded openings e, through which openings pass the screw-threaded shaft portions ff and g g', respectively on the lower and upper sides of the gap of the machine, Which shafts engage said slidable blocks and will cause the said blocks to move in a direction away from or toward the central portion of the machine, carrying with them the punches in either or both directions at the Will of the operator.

As it is important that the male and female members of the punch shall be in eXact block.

coincidence to properly perform their function, it is important that when once set when one member is moved in either direction the opposing member shall be moved an equal distance in the opposite direction. This movement is primarily imparted to the movable parts from the motor 12, which is conventionally illustrated and may be of any suitable type, though an air-motor is preferred, which is connected to any suitable source of compressed-air supply. (Not shown.) Upon the shaft of the motor 12 is a pinion 13, meshing with a gear 14 on the shaft 15, on which shaft is another pinion 16, (shown in dotted lines in Fig. 3,) with which meshes the gear 17 on the shaft 18. On the said shaft 18 is a bevel-gear 19, beyond which the shaft extends to form the screw-threaded portion f, before referred to, which passes through the blocks l 2, in block 3 there being no screwthread and in block 2 the threaded portionf being reversed. In mesh with bevel-gear 19 is a bevel-gear 2O on the vertical shaft 21, while at the opposite end of said shaft is a bevel-gear 22, meshing with the bevel-gear 23 on the screw-threaded shaft g, which latter connects with the female screw of the block 4, passes through the block 6, in which there is no screw-thread, and through block 5, in which the thread g is reversed. Upon the end g is a bevel-gear 24, meshing with bevel-gear 25 on the vertical shaft 26, upon the opposite end of which is the bevel-gear 27, meshing with the bevel-gear 28 on the end f ofthe lower shaft. Thus it will be seen that upon rotation of the motor shaft and pinion 13 the whole train of gearing and the shafts having the screw-threaded portions j', f', g, and g will be operated, and through the screw-threaded connection of the latter with the

blocks

1, 2, 4, and 5 said blocks 1 will be adjusted nearer to or away from the therewith.

The particular application of the machine i as invented by me has been to the punching of sheet-metal parts, such as sills, used in the construction of metallic railway-cars, and it j will be found especially applicable to that:

class of Work or in any style of metallic structures in which precision and variation of punching are required.

It will be apparent that the punches are' capable of separate aswell as simultaneous adjustment, which is readilyaccomplished by loosening the nuts 32 upon the bolts 33, the

heads 34 of which travel in the longitudinal l slots 35, whereby any single punch may be shifted to a new position upon its respective It will also be apparent that While I have only illustrated four punches, two of which are fixed and two movable, a larger number, proportioned to the capacity of the machine, may be used to advantage, some of which may be capable of movement across the bed of the machine and others held in relatively Iixed position, or the whole series may be movable, if desired, all of which will be within the spirit of my invention.

I am also-aware that minor changes in the construction, arrangement, and combination of the several parts of `my machine may be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

l. In a machine of the described character, a plurality of relatively movable members carrying punch members, a Xed member carrying punch members coperating therewith, and a screw-threaded shaft extending longitudinally through said movable members for moving said punch-carrying members; substantially as described.

2. In a machine of the described character, a head-block, a plurality of punch-carrying meansin alinement therein, punches separately movable therein, and connected, parallel, screw-threaded means for moving said punch-carrying means substantially as described.

3. In a machine of the described character, a plurality of punch-carrying means, punches capable of separate lateral adjustment therein, and connected, parallel, screw-threaded means for moving said carrying means in the line of said movement; substantially as described.

4. In a machine of the described character, a plurality of punch-,carrying means, and parallel screw-threaded shafts for adjusting the same, and for insuring synchronous uniform lateral movement of the male and female punch members carried thereby; Substantially as described.

5. In a machine of the described character, a plurality of punch members, some of which are centrally disposed and some of which are at each side of said central members, and connected, screw-threaded means extending therethrough for simultaneously adjusting the position of some of said members without disturbing the central members; substantially as described.

6. In a machine of the described character, a plurality of punch members arranged upon opposite sides of a gap, movable supports therefor, and screw threaded, connected means engaging therewith, for causing synchronous lateral movement of some of said punch members on one side of said gap with relation to others on the lsame side of said gap; substantially as described.

7. In a machine of the described character,l a plurality of punch members arranged upon opposite sides of a gap, slidable supports IOO IIO

Ipo

bers on each side of said gap with relation to relatively ixed punch members located therebetween on the same side of the gap; substantially as described.

In testimony whereof I hereunto aiix my signature, in the presence of two Witnesses, this 29th day of October, 1902.

JOHN S. STEVENSON.

Witnesses:

ANTON EKsTRoM, ARTHUR F. BIGGAR.