US1068344A - Punching and shearing machine. - Google Patents

Description

L. D. JANNELL.

PUNGHING AND SHEABING MACHINE.

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PUNGHING AND SHEARING MACHINE.

APPLICATION FILED JULY I, 1911.

1,068,344. Patented July 272, 1913 4 SHEETS-SHEET 3. 72, f/f X54 o 75 7/ 6&9 65

L. D. JANNELL.

PUNCHING AND SHEARING MACHINE.

4 SHEETS-SHEET 4.

Patented July 22, 1913.

APPLICATION FILED JULY l, 1911.

COLUMBIA PLANOGRAPH c0..w,\sHlNaToN, D. c.

UNITED STATES PATENT OFFICE.

LESLIE DAVID JANNELL, OF RUMFORD, MAINE, ASSIGNOR TO CLARK FOUNDRY COMPANY, OF RUMQFOED, MAINE, A CORPORATION OF MAINE.

PUNCHING AND Sl-IEARING MACHINE.

To all whom @'25 may concern:

Be it known that I, LESLIE llivm JAN- NELL, a citizen oitl the TLlnited States, and a resident of Bumt'ord, in t-he county ot' OX- ord and State oit Maine, have invented certain new and useful Improvements in Punching and Shearing Machines, of which the following is a specification.

llhis invention relates to machines for punching and shearing or cutting metal articles, such as tires, hoops, I-beams, angleirons and other metallic articles of various regular or irregular shapes, a machine of this general type being shown in Letters Patent No. 825,731, granted to me July 10, 1906.

In many respects, the machine described and claimed hereinafter is substantially the same as in my former patent, the present improvement relating especially to a structure which will enable either one of three operating instrumentalities to be employed according to the nature ot the work to be performed, all ot' said instrumentalities operating simultaneously so thatthe work can be do-ne at either point, or by either set of instrumentalities, without making any preliminary changes in the machine itself.

The object of t-he present invention is to provide means in machines or' the character mentioned, all tending to simplify the operations.

To these ends the invention consists in the improvements which I will now proceed to describe and claim.

Ot' the accompanying drawings, Figure l is a side elevation of a` machine embodying my present improvements. Fig. 2 is a front elevation of the upper portion of the machine shown in Fig. l, the parts being broken out to illustrate details. Fig. 3 is a rear elevation of a part of the machine shown in Fig. 2. Fig. el is a side elevation chiefly of the moving partsl of the machine, partly in section on the line i of Fig. 2. Fig. 5 is a detail elevation of a portion of the machine shown in Fig. l, on a larger scale. 6 represents av section on line 6-6 of Fig. Fig. 7 is an elevation of parts shown in Fig. 2, on a larger scale and showing the cutters separated. Fig. 8 represents a section on line 88 ot' Fig. 5, on a smaller scale.

Similar reference characters indicate the same or similar parts in all of the views.

Specification of Letters Patent.

Application led July l', 1911.

Patented July 22, i913.

Serial No. 636,428.

The frame of the machine l0 having a E suitable base ll, is provided on its two sides with projections l2 having veical guideways for two rods 13. The rods 13 rec-iprocate vertically, as hereinafter described, and carry with them all ot' the movable parts of the punching and shearing instrumentalities.

As will be best understood by reference to Fig. et, the vertically movable portions of the machine are so connected to the rods 123 as to reciprocate in the path prescribed by the guides for the said rods 13. Before describing the vertical portions of the machine, however, the members which are stationary and which cooperate with the movable members will be described. rIhe frame. l() is formed wit-h a` recess 14, which is open at one side, as best indicated by comparing Figs. 2 and 7. Suitably secured across the bottom of the opening leading from the recess ll is the lower or fixed shear blade 15. Suitably secured to the upper end of the fixed portion 10 of the frame is an angular shear blade 16 (see Figs. 5 and G).

A punch-holding and guiding yoke 1S (see Figs. l, 2, and 4) is removably mounted in ways 17, provided in the frame of the machine, said yoke having a female die member 19, the upper or overhanging portion of the yoke forming the guide for the male die member, presently described. As best shown in Fig. 2, partly by dotted lines, one side of the base of the yoke is engaged by the block 20, which is normally pressed outwardly by the spring 2l. The outer side face of said block is formed with a` conical recess 22, which is engaged by the screw 23, having a handle 24;. Said handle is shown as pivoted to the screw so that. a half rotation can be given to the screw and the handle then released and permitted to depend so that the gravity of said handle will prevent changing ot the adjustmentof the screw. When the screw is in the position shown in Fig. 2, the yoke is firmly gripped by means of the block 20, but if the screw be loosened, the spring 2l will elevate the block 2O sutliciently so that the pressure of the inclined face of the block against the inclined face of the yoke will be relieved sufficiently to permit the yoke to be bodily removed. The entire frame 10 is firmly recessed to receive the carrier, 'the main or body port-ion otwhich is shown in Fig. 4:, at

25. This carrier-frame 25 has connected to it the members which coperate with the shear blades and female punching member that have been mentioned. The said carrier-frame 25 is provided with projections or ears 26, in which the rods 13 are secured, the lower ends of said rods 13 being suitably secured to projections at the foot of the carrier-frame 25. Additional guiding members carried by theframe 25 to cooperate with portions of the main frame 10 are a lip 27 and` a straight vertical rear wall 28, which is in operative contact with ears 29 of the fra-me 10. The carrier-frame 25 is provided with an upper roll 30 and a lower roll 31. Mounted in the main frame 10 is a shaft 32 having two cams 33 and 34, adapted to engage, respectively, the rolls 30 and 31, so that as said shaft and its cams are rotated, as hereinafter described, the carrier-frame 25 and the parts connected thereto will be vertically reciprocated.

Secured to the shaft 32 is a gear 35 which is engaged by a pinion 36, indica-ted by dotted lines in F ig. 1, said pinion being loose on shaft 37, but having suitable clutch mechanism 38 whereby it may be connected to said shaft. The shaft 37 has a gear 39, in-

dicated by dotted lines in Fig. 1, said gear being driven by the pinion 40 on the main driving-shaft 41, said shaft having a pulley 42, adapted to be driven by the belt 43. The position of the clutch 38 so as to effect the engagement or disengagement of t-he pinion to startor stop the'inachine, is controlled by the yoke 44, pivoted at 45 to a collar 46 on shaft 32. An arm 47 on the yoke, which extends to the right (Fig. 1) from the pivotal point 45, coacts with a lug 48 to effect the stoppage of the gear 35 at a definite point. as hereinafter described. A pin 49 carried by the yoke is acted upon by a cam lug 50 carried by the gear 35. The pin 49 is adjustable along a. slot 51, so that said pin can be moved to positions so that it will not be acted upon by the lug` 50, if it be desired that the machine shall run continuously. The operation of this portion of the machine is such that when the cam lug 50 engages the pin 49, it causes the disengagement of the clutch, so that although the shafts 37 and 41 may continue to rotate, no power will be imparted to the gear 35, and consequently, the cams of shaft 32 will not aflect the carrier and its shearing and punching members. The lugs 48 and 5() occupy such positions relatively to the axis of rotation of the gear 35 that immediately after the lug 50 has acted to separate the clutch and has just passed the pin 49, the lug 48 will contact with the under side of arm 47 and positively stop the gear at that point of itsrotation. In order that the machine may be started again, I provide a rock-shaft 52 having an arm at one end, provided with a treadle 53, another arm 54 of said rockshaft being connected to the yoke 44 in such a manner that the attendant, by downward pressure upon the treadle 53 can actuate the yoke 44 to shift the clutch and reengage the pinion 36 with the shaft 37. This movement of the yoke, oscillating upon its pivots 45, throws the arm 47 out of position in front of the lug' 48, so as to remove the stop that operated to effect the stoppage of the machine.4 i

As shown by comparing Figs. 4 and 7, the carrier-frame 25 is provided with a projection 55, which extends into a recess14 and is provided with a shear blade 56 to cooperate with the fixed blade 15, said blades 56 and 15 being especially Vfor shearing I-beams or laterally fiat work, Vwhich may, however, be curved, or otherwise shaped longitudinally. Secured to the frame 25 is an. angular blade 57, said blade coperatingv with the angular fixed blade 16 for cutting angle bars.

Adjustably mounted in a vertical aperture formed in the upper portion of thel carrierframe 25 is a. plunger 58, said plunger having a shouldered recess 59, to which is coupled the upper end of the male die-holder 60. The coupling recess is open in such direct-ion that when the yoke 18 is removed, the die-holder 60 can be readily removed with the yoke. The die-holder 60 carries a die such as indica-ted at 61, said die-holder being mounted to reciprocate vertically in the upper arm of said yoke. The plunger 58 is held from rot-ating in its socket, while permitted to vertically reciprocate vby a screw 62 which enters a longitudinal groove in the side of said plunger. Said plunger carries a pin 63 which enters a cam groove 64 in a sleeve 65. sleeve 65 is formed an annular groove which receives a collar 66, the latter being fastened as by screws 67, to the top of the carrierframe 25, so that of course, the sleeve 65 will always reciprocate vertically with the carrier 25, said sleeve, however, being free to 10oVV In the lower end of said rotate. The sleeve is inclosed by a 'cap 68, Y

which is secured to it, as by a screw 69 (Fig. 2). The cap is provided with a handwheel 70. It will now be understood that by rotating the hand-wheel 70, the sleeve 65 will also be rotated so that the cam groove 64 formed in said sleeve will, through the pin 63, cause the plunger 58 and the male die-holder to be shifted vertically. This construction is such that, by rotating the hand-wheel 70, the male die 61 can be temporarily lowered to center the work. Of course, when the punching operation occurs,

of the cam groove 64. A small upright or standard 71, rising from the carrier-frameV 25, has an arm 7 2 provided with an Vinvert-ed cup member 73 at its outer end. A pin 74 the pin 63 must occupy the center or apex rising from the. top center of the cap 68 passes through said cup 73. A spring 75 coiled about the pin 74s acts to exert sufficient pressure upon the cap 68 to prevent rattling during the operation ot' punching.

During the cutting or shearing operation of metal, there is always a tendency to bend or oscillate the piece ot metal out of the path or plane of feed of the piece of work. To oppose tendency of the piece of metal or bar to oscillate upo-n the knife 15, l provide a gage TG which is adjustable to suit different thicknesses of the work. Ot course, the plane ot' the cut is usually desired at a right angle to the length of the piece. However, when the angle ot the plane of the cut has been determined, it is desirable of course, that all other similar pieces shall be cut at the same angle. The gage 'TG has a guiding portion TT which lits suitable ways. A screw TS is pinned to the gage as at T9 so that the screw cannot rotate. The screw is mounted to move freely vertically in apertures formed in lugs 80, a nut S1 in engagement .with said screw being held between said lugs. By rotating the nut S1, the height of the gage T6 can be varied so as to control the angle of cut of the shears 15, 56, it being understood that the operator, when he introduces the work indicated b v dotted lines in Fig. T, will hold the work against the under tace of the gage T6. To determine the length of the piece cut ott, an end gage S2 is adjustably mounted on a ixed supporting rod or pin 83. An angular gage is provided for the work that is being operated upon by the blades 1G, 57, (see Figs. 1, 5, 6 and 8). The frame 10 is formed with a vertical rib 81. To the lower end of said rib is secured, so as to rotate without longitudinal movement., a screw 85 having a knob or hand-wheel 86. Said screw engages a yoke S?. To the upper ends of the yoke S7 is secured an angular gage SS as by bolt-s 89 and cheek pieces 90. rlhe connections between the yoke and angular gage include a plate or center piece 91, which is provided with a vertical slot 92. A guiding screw 93 passes through said slot, so that said center piece and the yoke may be adjusted vertically by the screw 85.

Vhen the piece of work to be operated upon is an angle-bar, it is inserted in the direction of the arrow in Fig. 6, the operator holding the work against the under tace of the gage 88, so that, when t-he blade 57 descends, the gage 8S will resist tendency to tilt the work or vary the angle thereof, due to the operation of the shearing.

lt will be understood, of fourse, that it the sleeve is turned so that the Pin 63 is not at the apex of the cam groove 64, which apex forms a locking recess for said pin, then the pressure result-ing from the punching operation will cause the sleeve 65 to rotate so that the pin will occupy said recess or apex. The spring T assists in insuring the relative positions ot these parts so that said pin will occupy the position shown in Figs. 1 and 2.

I claim 1. A combined punching and cutting machine having a fixed frame with a plurality of shears, said frame carrying also one of the members of a punching couple, a movable carrier having shears to cooperate with those of the lixed frame and having the other member ot the punching couple connected to it, and adjustable gages for the work being cut or operated upon by the shears.

2. A punching machine comprising a supporting frame having a substantially hori- Zontal seat provided with guides, a die-holding and guiding yoke having a base movable on said seat between the guides, said base having an inclined side, a. spring-supported block having an inclined side to bear against said yoke base and having a conical recess, and a screw having a conical tip to engage said recess.

3. In a machine of the character described, iixed and movable coperating die members, means for actuating the movable die members, and means for manually varying the position of the movable die member relatively to the fixed die member, said means including a sleeve having a cam slot, a pin project-ing from the die holder into said slot, and means for adjusting said sleeve.

et. In a machine of the character described, a lixed die member and a movable die member, a plunger connected with the movable die member to actuate it, a pin projecting from said plunger, a sleeve inclosing the plunger and having a cam slot receiving said pin, and means whereby said sleeve may be rotatively adjusted.

5. 1n a machine of the character described, a. fixed die member and a movable die member, a plunger connected with the movable die member to actuate it, a pin projecting from said plunger, a sleeve inclosing the plunger and having a cam slot receiving said pin, a cap inclosing said sleeve and having a hand wheel, and means for yieldingly exerting pressure on said cap.

In testimony whereof I have atlixed my signature, in presence ot two witnesses.

LESLIE DAVID JANNELL.

fitnesses L. 1V. BLANCHARD,

P. B. CLARK.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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