US796523A - Punching-machine. - Google Patents

Description

No. 796,523. l PATBNTED AUG.v 8, 1905.

H. G.MORSE, DECD.

M. K, MORSE, BXEOUTBIX.

PUNGHING MACHINE.

APPLIUATION FILED JULY 1s, 190s,

3 SHEETS-SHEET 1.

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No. 796,523. PATENTED AUG. 8, 1905. H. G. MORSE, DECD.

M. K. MORSE, EXEGUTBIX.

PUNCHING MACHINE.

APPLICATION HLHDJULY 1a, 190s.

3 SHEETS-SHEET 2.-

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NITED STATES PATENT oniucn.

MARY K. MORSE, OF PHILADELPHIA, PENNSYLVANIA, EXEOUTRIX OF HENRY G. MORSE, DECEASED, ASSIGNOR TO NEW YORK` SHIP- BUILDING COMPANY, OF OAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PUNCHl'NG-MACHINE.

Specification of Letters Patent.

Patented Aug. 1905.

To if/ZZ whom, it' may concern:

Be it known that HENRY G. MORSE, deceased, late a citizen of the United States of America, and a resident of the city and county of Philadelphia, State of Pennsylvania, did invent certain new and useful Improvements in Punching-Machines, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

The invention relates to punching-machines, and has for its object to provide an improved machine of this kind, and particularly to provide in a convenient and simple manner for the location of the punch in contact with the work and in correct alinement prior to the application of power to perform the punching operation, the machine also providing' for the withdrawal of the punch from its work by novel and convenient appliances.

The nature of the improvements will be best understood as described in connection with the drawings, in which it is illustrated, and in whichH Figure l is a plan view of the punchingmachine; Fig; 2, a side elevation thereof; Fig. 3, a front elevation on a larger scale; Fig. 4, a vertical sectional view, also on a larger scale, taken as on the section-line L 4 of Fig. l. Fig. 5 is alongitudinal section through the controlling-valve; Fig. 6, a perspective view illustrating the details of the latch-actuating device; Fig. 7, a perspective view illustrating the details of the latch proper, and Fig. 8 a sectional 'elevation of the lower end of the punch proper.

A indicates the frame of the machine, having a platform A, upon which rests the punchdie, (indicated at B.) The frame has also an overhanging portion A2, to which is attached the head O, carrying and supporting the punch-actuating mechanism.

A3 indicates lugs extending down from the overhanging portion A2 of the frame and supporting a pivot-pin for the stripping-lever.

The head O is formed with a vertical channel O, communicating at bottom and top with bearing-sections O2 and C, the upper bearing-section communicating in turn with an enlarged passage, (indicated at C2.) In the forward part of the head is formed a cylindrical channel (indicated at O2) connecting with a cylindrical' channel C of smaller diameter, said last-mentioned channel opening through the front of the head, as indicated at O7, and communicating with a bearing-section O8, above which the head is chambered out, as indicated at C.

D is the cylinder-head of the actuating mechanism, the cylinder formed therein being indicated at D2 D3` indicating a stuffingbox in which is situated packing Gr, held in place by a gland G'.

Di is a port leading into the top of the cylinder, and D D &c., are ears extending out from the head D, and perforated for the passage of bolts E E, &c., which secure the head to similar ears C10 O10, &c., on the head C.

F is a plunger moving in the cylinder D2, having a narrowed lower end, (indicated at F',) upon which is secured the annular ring H, supporting the head H', centrally perforated, as indicated at H2.

I is the actuating-plunger, having a head I', which is secured between the head of the plunger F and its head H', as shown. The lower end of this plunger is threaded, as shown at I2, and has secured upon it the sleeve O, which moves in the cylindrical chamber C and has secured to its end the sleeve O2, which moves in the cylindrical chamber O2.

O is a lateral opening through the sleeve O, O3 indicating wrench attachments on the lower end of the sleeve O2 by which it can be adjusted.

P is the punch-holding plunger, which moves freely in the sleeve O, P indicating the upper head of this plunger and P2 an annular groove formed therein and having a sloping lower shoulder, (indicated at P3.)

P2 is a collar formed near the lower end of the plunger and having secured to it oppositelyextending rods P5 P5, P6 indicating the lower end of the plunger in which the punch is fastened and P7 P7 indicating springs which support a portion of the weight of the plunger and its attachments, for purposes to be hereinafter explained.

Q is a latch having a beveled lower surface Q (see Fig. 7) and a slot Q2. This latch slides in a laterally-extending box O5, secured to register with the opening O of the sleeve O lthrough flanges indicated at O2, having an opening through its top side, as indicated at O",

on each side of which are upwardly-extending lugs, (indicated atO7.) As shown, the latch Q has in the box O5 and directly behind it a sliding piece R, which is forced forward against the latch by a spring Q2 and with y which is engaged the actuating-lever R', pivoted at R2 and having an upwardly-extending shoulder pivoted at R3. (Best shown in Fig. 7.)

S is a head-bearing secured to the front of the head C and in which is guided the slide S,

which is adjusted and held to proper position by the adjusting-screw, (indicated at S2.)

S3 is a latch projecting through the slide S, having its rear portion extending through a box S2, secured to the slide and containing a y spring S2, which throws the latch inward.

tending arm T, carrying a roller T2, which lies immediately above the projecting lug R3 of the lever R. The slide T is formed with a latch-perforation, (indicated at T) which is normally engaged by the latch S3.

U (see Figs-L and 5) is a valve-casing having formed in it a cylindrical chamber U', into which opens the three ports U2 U3 and U4.

U" is the piston-valve, moving in the valvechamber U and actuated by a hand-lever U.

V is the conduit for pressure iiuid, opening into the port U2.

U is a conduit leading from the port U3 to the port D2 of the cylinder D. f

V2 is an exhaust-conduit leading from the port U2, and V3 is a conduit leading from the conduit V to the port K2 of the cylinder K.

W is a stripping-lever pivoted on the lugs A3 and having forked ends W W, which extend over the work on each side o f the punch. The lever W has secured to it the stem W 2, which moves in the guide-bearing G2 C2 and has secured to its upper end, which projects through the chamber C", a head W3 against which a spring in the chamber G2 presses.

W5is an adjusting-nut screwing on the lower portion of the rod W2- and by means of which the stripping-lever is adjusted to proper height for the different classes of work.

X is the punch secured in the end of the plunger P and preferably formed, as is best indicated in Fig. 8, with a central projecting' point X. y

Z indicates the work, a metal plate, and Z Z center-punches formed in the plate at the centeroftheintended holes to be punched therein.

Z2 V 2 indicate the punch-holes.

It will be obvious that the conduit V will always be in communication with thevcylinder K through the conduit V3, and when not overcome by a greater force the fluid acting on the sliding cylinder L will force it up, drawing up the head M, and, through the rods N N, drawing up the head H and piston F. When the valve UD is thrust upward to connect the ports U2 and U3, the pressure fiuid will flow through the conduit V into the cylinder D2 and acting on the plunger-piston F will press it and the plunger l, attached to its lower end, downward, while as soon as the valve UU is' drawn down to connect the ports U3 and U2 the pressure fluid in the cylinder will exhaust and the plunger-piston be raised by the cylinder K, as described.

The normal non-operative position of the mechanism is that shown in Fig. 4, with the punch X resting on the work with simply the weight of the plunger Pand its attachments, less the tension in the springs P7 P7, resting upon it. This permits the plate to be moved readily beneath the punch until the point X I of the punch drops into one of the punchmarks Z, thus finding the center of the hole to be punched. lThe operator then ad mits the pressure-fluid to the cylinder D2, depressing the plunger l with the sleeves O and O2 until the top of the plunger I comes in contact with the top of the plunger P-'at or just before which the downward motion of the cylinder O brings the top of the latch Q, below the top edge of the groove C, whereupon the spring Q2 forces the latch into the groove C, all the parts moving down together and the punch being forced through the plate Z, forming a perforation Z2. The cylinder D2 being 'then connected with the exhaust, the piston F and the plunger l rise, carrying with them the plunger P and the punch by reason of the engagement of the latch Q with a groove C. The stripping-lever W holds down the work while the punch is being withdrawn from the punched hole Z2, and all the parts rise together until the projecting arm R3 of the lever R comes in contact with a roller T2 on the arm T. the further lifting rocking the lever R backward, withdrawing the latch Q, and permitting the plunger P to fall down until the punch again rests upon the work Z.

1n case any un usual and dangerous pressure is exerted on the arm T, the breakage of the machine is avoided by the fact that the arm T is held on the head T, which is free to move up when the pressure exerted upon it is suiiicient to push back the latch S2, and when it is desired for any reason to retain the plunger P in elevated position it is only necessary for the operator to take hold of the cam-lever SG and turn it upward, which will withdraw the latch S3 from engagement with the head T.

Having now described the said invention, what' is claimed as new, and desired to be secured by Letters Patent, is-

1. In a punching-machine,a separate punchholding device freely movable to and away from the work in combination with a reciproeating punch-actuating device arranged to impinge and actuate the holder during its working stroke, a latch arranged to couple the holder and actuating device during the working stroke and a latch-releasing device acting to withdraw said latch and uncou ple said parts during the return stroke, and whereby the punch after being withdrawn from the punchhole is allowed to fall back on the work in advance of the next working stroke.

2. In apunching-machine,a separate punchholding device freely movable to and away from the work in combination with means for counterbalancing a part of the weight thereof, a reciprocating punch-actuating device arranged to im pinge and actuate the holder during its working stroke, a latch arranged to couple the holder and actuating device during the working stroke and a latch-releasing device acting to withdraw said latch and uncouple said parts during the return stroke, and whereby the punch after being withdrawn from the punch-hole is allowed to fall back on the work in advance of the next working stroke.

3. In a punching-machine,a separate punchholding device freely movable to and away from the work in combination with a punch having a central projecting point, a reciprocating punch-actuating device arranged to impinge and actuate the holder during its working stroke, a latch arranged to couple the holder` and actuating device during the working stroke and a latch-releasing device acting' to withdraw said latch and uncouple said parts during the return stroke, and whereby the punch after being withdrawn from the punchhole is allowed to fall back on the work in ad- Vance of the next working stroke.

4. In a punching-machine, the combination of a punch-holding plunger P having a latchrecess P2 with a reciprocating punch-actuating plunger, a sleeve O secured to the actuating-plunger and serving as a bearing for the punch-plunger, a latch secured to the sleeve and arranged to engage the recess P2 when the actuating-plunger makes its working stroke and a latch-releasing device arranged to withdraw the latch during the return stroke of the plunger.

5. In a punching-machine having in combination, the actuating-plunger I and punchholding plungerP and a latch for coupling said plungers together, a latch-releasing device secured to the frame of the machine, and means whereby said releasing device can move under unusual pressure.

' 6. In a punching-machine having in combination, the actuating-plunger I and punchholding plunger P and a latch for coupling said plungers together, a latch-releasing device adjustably secured to the frame of thel machine and means whereby said releasing device can move under unusual pressure.

'i'.V In a punching-machine having in combination, the actuating-plunger I and punchholding plunger P and a latch for coupling' said plungers together, a latch-releasing device, a latch securing the latch-releasing device to the frame of the machine, said latch being retractable under unusual pressure, and means for withdrawing the latch at will.

8. In a punching-machine, a plurality of plungers, means for connecting the same during their operative stroke, and means for disconnecting the plungers during their return travel.

9. In a punching-machine, a plurality of plungers, means for automatically connecting the same together, and means for automaticallyT disconnecting the plungers during their travel to permit an independent descent ot' the released plunger.

10. Inapunching'machine,apressure-plunger, a punch-plunger, and means constructed and arranged to automatically connect said plungers together at the downward limit ot their movement and to disconnect the same at the upward limitotl their movement.

MARY K. MORSE, Eecutrm 0f t/w estate of Aemg/ G. llforsc,

deceased.

Witnesses:

JOSEPH F. ONEILL, D. STEWART.

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