US757562A - Slotting-machine. - Google Patents

Description

PATENTEDIYAPR. 19, 1904.

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No. 757,562. PATENTBD-APR. 19, 1904. M. & H. E. MORTON.

SLOTTING MACHINE.

APPLICATION FILED JULY 29. 1902.

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SLOTTING MACHINE.

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Patented April 19, 1904.

" UNITED STATES PATENT OFFICE.

MATTHEW MORTON AND HENRY E. MORTON, OF MUSKEGON HEIGHTS,

MICHIGAN.

SLOTTING-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 757,562, dated April 19, 1904.

Application filed July 29, 1902. Serial No. 117,464. (No model.)

To all whmn it may concern.-

Be it known that we, MATTHEW MORTON and HENRY E. MORTON, citizens of the United States, residing at Muskegon Heights, county of Muskegon, State of Michigan, have invented a certain new and useful Improvement-in Slotting-Machines, of which the following is a specification, reference being had to the accompanying drawings, which form a part of this specification.

Our invention has for its object to provide an improved slotting-machine, the same being more particularly designed for cutting out the material and finishing the openings in solid: end connecting-rods, double-throw cranks, and other work of this nature, although we do not limit ourselves solely thereto.

Our invention consists of the construction, combination, and arrangement of devices hereinafter described and claimed, and illustrated in the drawings,.in which Figure l'is a view in side elevation, parts Fig. :2- is a View in elevation at right angles to Fig. 1. Fig. 3 is a plan view of the machine. Fig. i. is a View in vertical section showing parts inelevation. Fig. 5 is a partial vertical section on the line 5 5, Fig. 3, showing features of the invention.

' Fig. 6 is a partial vertical section on the line 6 6, Fig. 5. Fig. '7 is a detail view in section of certain features of the automatic feed-gear and pawl. Fig. 8 is a view of the same in side elevation, parts being broken away. Fig.

9 is a view in side elevation showing the side opposite that shown in Fig. 1, certain features shown below the turn-table in Fig. 1 being omitted. Fig. 10 is a view in rear elevation showing theside opposite that illustrated in Fig. 2, omitting the truck Z and features mounted thereupon.

In certain kinds of heavy work, as incutting out the material or slotting and finishing e carry out our invention as follows:

-In the drawings, a represents a turn-table; b, any suitable bed serving as a circular track, said tracksupported upon a foundation 0. The turn-table is provided with'a gear d. Upon the foundation is supported ashaft 6, provided with a pinion f, meshing with-a gear g upon a shaft 7L, said shaft provided with a pinion i, meshing with the gear (1. The shaft 6 is shown provided with a hand-wheel 7' to actuate the same and revolve the turn-table.

Upon the foundation care located tracks is, upon which is mounted a truck Z, provided with wheels in to travel upon said tracks. Upon the truck is a carriage n, arranged to travel transversely of the travel of the truck, the truck being provided with tracks 19, supporting said carriage. By means of this truck and carriage we are enabled to feed thework to'the machine in either directionz'. a, to-

ward or from the machineand in a transverse direction. The work is indicated at q. The work may be held upon the carriage 12, in any suitable manner, as by a clamping device 1, and may be vertically adjusted thereupon in any desired manner, as by an adjusting-screw 2.

.Upon the turn-table is located a fixed supporting frame or base r, provided with a bed 8. A. lateral feed-table'tis mounted upon the beds. Upon the table t is a cross feeding-table 10, the upper side of which is circular and provided with a circular T-slot 23. Upon this cross feeding-table is movably mounted a revolving chuck or mechanism to hold the work, said chuck being provided with a rotatable table 11 and with adjustable jaws 12. The table 11 is engaged upon the table 10 by means of bolts entering the T-slot thereof, as shown. The jaws 12 are adjustable for the purpose of receiving larger or smaller connecting-rods. By loosening the bolts which secure the table 11 upon the table 10 the table 11 may be revolved in either direction. A cutter-bar is indicated at 20, preferably engaged in a crosshead w, provided toward its lower end with a rack-bar Certain features of construction embraced in our improved connecting-rod-slotting ma-.

chine were embodied in United States Letters I electric motor belted direct.

Patentgranted February 7, 1899, N o. 618,894, such as a tilting frame 3, having a jointed engagement toward its base with the fixed frame or column 7', as at 4. The particular construction and arrangement of the fixed frame and of the tilting frame, with their related parts, are set forth in the Letters Patent above referred to.

'With this special machine it is necessary for the cutter to reciprocate, and to provide a reciprocating motion a suitable train of gears '10 and a belt-shifting device are supplied, said train of gears being driven by any suitable source of power, as a motor 2:, the train of gears actuating said cutter-bar.

Referringto Fig. 10, the b'ack side of the column 1' is shown provided with three pulleys mounted upon a shaft 52, the outer one representing a tight pulley which is keyed to the shaft, which is used for the purpose of driving the machine in the'cut. The intermediate pulley is loose. The inner pulley for driving on the return stroke is attached to the hub of a pinion 49, which meshes directly into the main driving-gear of the machine and revolves freely on shaft 52. When power is applied to the pulley for driving the machine on the cut, it is transferred through shaft 52 to a pinion 50, from thence to an intermediate gear 54, through to a pinion .51, thence on to the main driving-gear of the machine. When the cutting stroke is completed, by the employment of reverse mechanism 44, working in conjunction with tappets on circular disk 45 and reversing dog or cam 48 and connections,

the belt-shifter is made to throw the belt to the opposite driving-pulley, the power then being applied directly to the gear 49 upon the driving-shaft 6, thence to the main drivinggear of the machine, and'the cutter-bar, crosshead, &c., are made to travel in the opposite direction with a quick return ratio, as is represented by the diflerence in the diameters of the pinion 50 and intermediate gear 54. 47 represents a friction-clutch for stopping and starting the machine at any part of its stroke.

The preferred power for this machine is an The main driving-gear is attached to the shaft, which is provided with a pinion which engages a rack-bar or toothed portion y, secured to the crosshead, in whichthe reciprocatory cutter-bar w is preferably engaged and by which it is carried in its reciprocatory motion. A pinion 5 upon the driving-shaft 6 meshes with the bar y, said shaft being actuated by the system of gears u. I

Upon the bed of the tilting frame 3 is supported a post 7, toward the top of which is engaged an arm 8, projecting forward against the cutter-bar to form a support for the upper end of said bar to prevent the cutter-bar from springing away from the work. This arm may be made adjustable in any suitable manner, as indicated in the patent above referred to, while the post 7 may also be made adjustable, as indicated in said patent.

The work is laid in a horizontal position and the slotting mechanism is revolved on the foundation 6, so that the cut may be made in any desired direction, the line of work q lying parallel with tracks is, thereby eflecting a great saving of room, as well as increasing the efficiency in operation and adjustment. It will be understood that the pump 19 is arranged to take the fluid for lubricating the cutter, and by means of pipes, 620., it forces the fluid on the cutterwhile making its operation, receiving its power from an eccentric on the intermediate gear-shaft 46. The arrangement is such that the oil or fluid is allowed to run into receiving-box 20, and the pump takes it from this box and places it on the cutter. It will also be understood that the cutter-bar is movable with the tilting frame, whereby said cutter-bar may be tilted to any desired angle, although for the particular work for which this machine is designed it is not necessary to have any given amount of adjustment.

An automatic cutterbar-relieving mechanism is provided in the form of an eccentric and shaft 53, the same being actuated by reversing dog or cam 48 and intervening connections, the main feed-lever 26 being journaled on the upper end of the eccentric and shaft 53. As the dog or cam 48 moves in either direction to actuate belt-shifter the eccentric-shaft 53 makes a portion of a revolution, whereby lever 26 is withdrawn from contact with tilting frame 3. This allows the cutter to drop back on its return stroke, thereby preserving its edge, and when the machine automatically reverses for its cutting stroke the eccentric-shaft 53 is drawn in the opposite direction, forcing lever 26 and tilting frame 3 and cutter-bar w to the desired position to take its cut, there being a bar 24 connected at one end to the lever 26, and its other end is adapted to bear against the back of the cutter-bar, as shown in Fig. 4,

The provision of the lateral feed-table t, the cross feed-table 10, and the revolving table 11 for the chuck enables us to adjust the chuck in any desired position. These tables are fed either automatically or by hand, as will appear fromthe following description: Beneath the table 2, is a threaded hanger 13, with which a threaded shaft or screw 13 engages, as shown in Figs. 5 and 6. On the end of this screw 18 is abevel-gear 14, which meshes with a crank being connected to a friction-clutch 18 by a pitman 2-8, as shown in Fig. 1. The clutch 18 is operated by the driving mechanism in the usual way, and through the adjunctive mechanism above described the screwshaft 13 feeds the work to the cutter.

In order to i provide a progressive or stepby-st-ep feed for the work, which feed takes place at the completion of the cutting stroke,

journaled loosely on a collar 31 on the shaft 2-9. By this construction-it will be seen that the table 25 may be fed either automatically or by hand, and the latter operation will not affect the position of the shaft 29 or its operating means, since the pawl 21 may be turned so as to slide around the ratchet, and then by applying a crank or wrench to the angular end of the shaft 27 the feed-screw 13 may be rotated. Similar mechanism is employed for feeding the work in a direction at right angles to the movement imparted by the feedscrew 13, the movement being imparted to the table 10. The feed-screw 22- for this table has one end secured in the table, as seen in Fig. 5. The gear 35 is detachably mounted on the shaft 27 and may be removed and placed on a shaft-15, when it will mesh with the gear 31, and the shaft 15 will then be driven in the same manner as the shaft 27. This shaft 15 extends through the bed 8 and has a bevelgear connection 16 at its opposite end with a shaft 36, journaled in a bearing 42. (Shown in Figs. 1 and 3.) This shaft has a bevelgear which meshes with a bevel-gear 37 on on the feed-screw 22, but is stayed against longitudinal movement by a band tliconnected to the frame or bed 8, whereby the feedscrew is moved longitudinally through the gear 41 and the table 10 shifted. It will be apparent that the table 10 may be fed by hand by applying a crank or wrench to the angular end of the shaft 15. i g

It will be evident that by the provision of the feed-screws 13 and 2:2 the cross-plate 10 is adjustable in both directions, while by means of the hand-wheel j the revolving plate a may be turned into any desired position. By means of the truck land the carriage a the work may be operated in either direction.

19 represents an oil or water pump, and 20 represents an oil or water reservoir.

The mode of operation is as follows: A hole is drilled through the solid end of the rod to be machined in two opposite corners. These holes are squared with a special bar and cut.

ter for the purpose, these openings being sufficient toallow the cutter-bar and cutter w to pass through them. Thecutter in this case is enough wider than the bar to give perfect. clearance to the bar.

The out is then taken across one end of the opening. The machine is then adjusted by hand back to the place of the beginning. The bolts in the circular plate a little greater width than the bar is made along the side of the connecting-rod. After this operation the cutter-bar is withdrawn, the circular plates loosened, the machine revolved by hand-wheel another ninety degrees and adjusted, Then the cutter-bar may be placed throughthe hole prepared for this purpose, and a cut is then taken down the end of the opening. After this operation it is returned by hand and. the bolts loosened'and handwheel 3' revolved, so as turn the machine another ninety degrees, the cutter-bar replaced and adjusted, and a cut taken in this direction to the original point of beginning,

thereby having cut out a solid chunk, of metal.

and leaving a reasonably perfect opening in the end of the work Other forms of tools may be substituted by which other classes of work may be machined with this machine.

The object of the adjustable carriage located on track is will be readily seen is to sup port the end of the work q, and in the operation of feeding the only movementthe work Q requires is to feed either laterally or to and from the cutter, and the supporting-carriage and track being self-adjusting in either direc tion makes it unnecessary to materially change the position of the work q while in its operation.

For purpose of illustrating, if the work were to be machined in the old way it would necessitate the moving of the work in the different positions hereinbefore referred to and if the work were eighteen feet long would take up a space covered by eighteen feet radius. This illustrates clearly the advantage of having the work remaining in one position and overcomes the necessity of occupying so much room in doing this class of work.

57 denotes the end of the connecting-rod or work, and 58 binder-blocks for the same.

What we claim as our invention is 1. In a slotting-machine the combination of atur'n-table, abase supported thereupon, hori- IIO zontally-adjustable mechanism for holding the work carried by said base, and a reciprocatory cutter carried by said base.

2. In a slotting-machine the combination of a supporting-foundation, a turn-table supported upon said foundation, a supporting-base located upon said turn-table, a reciprocatory cutter carried by said base and driving mechanism to actuate said cutter, said driving mechanism located below the turn-table.

3. In a slotting-machine the combination of a turn-table, a support therefor, a supportingbase located upon the turn-table, a reciprocatory cutter carried by said base, horizontally adjustable work feeding mechanism mounted upon said base, and means upon said support geared with the turn-table to actuate the same.

4. In a slotting-machine the combination of a support having a countersunk portion or well, a turn-table carried by said support, a supporting-base upon the turn-table, cutter mechanism carried by said base, revolving mechanism to engage the work mounted upon said base and driving mechanism locatedin the countersunk portion or well of the support to drive the cutter mechanism.

5. In a slotting-machine the combination of a turn-table, a supporting-base carried by the turntable, an additional turntable at the upper end of said base to engage the work, and cutter mechanism carried by said base, whereby the cutter mechanism may be turned and operated without moving the work.

6. In aslotting-machine the combination of a turn-table, reciprocatory cutter mechanism, means to adjust the cutter mechanism relative to the turn-table, and means to carry one end of the work, said means movable toward and from the cutter mechanism, and in a transverse direction.

7. In a slotting-machine the combination of a turn-table having a vertical axis, horizontally adjustable cutter mechanism carried thereby, a truck movable toward and from the cutter mechanism, and a carriage mounted upon said truck to support the work movable in a direction transverse to the movement of the truck.

8. In a slotting-machine the combination of a turn-table, a base thereupon, a reciprocatory cutter carried by said base, a laterallyadjustable feed-table upon the upper portion of the base, a cross feed-table adjustable upon the lateral feed-table in a direction transverse to the movement of the lateral feed-table, a revolving plate upon thecross feed-table, and

means for holding the work upon the revolv- MATTHEW MORTON. HENRY E. MORTON.

Witnesses:

J OHN S. BALL, WM. ROBINSON.

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