US911841A - Milling and like machine. - Google Patents

Description

G. REYHER.

MILLING AND LIKE MACHINE.

APPLIOATIQN FILED MAY 24, 1907.

Patented Feb. 9, 1909.

5 SHEETS-SHEET 1 e. RBYHBR. 2 .MILLING AND LIKE MACHINE.

APPLICATION FILED MAY 24, 1907.

5 SHEETS-SHEET 2.

Patented Feb. 9, 1909.

G. RBYHER.

MLLING AND LIKE MACHINE. APPLICATION FILED V11111124, 1907.

91 1,841 Patented Feb. 9, 1909.

5 SHEETS-SHEET 3.

G. REYHER.

MILLING AND LIKE MACHINE.

APPLIGATION FILED MM2/1, 1907.

91 1,841 Patented Feb. 9, 1909.

5 SHEETS-SHEET 4.

G. REYHER.

MILLING AND LIKE MACHINE.

APPLIoATLoN FILED MAY 24, 1907.

Patented Feb. 9, 1909.

5 SHEETS-SHEET 5.

UNITED STATES- GEORG REYEER, OF BERLIN, GERMANY.

i. MILLING AND LIE MACHINE.

Specification of Letters Patent.

I Application filed May 24,

Patented Feb. 9, 1909.

1907. Serial No. 375,541.

To all whom it may concern:

Be it known that I, GEORG REYHER, a

subject of the King of Saxony, and resident of N o. 23 Emdenerstrasse, Berlin, Germany, have invented new and useful Im rovements in Milling and Like Machines, o which the following is a description.

This invention relates to an attachment to milling machines arranged in a special casing to be attached to or detached from the reciprocating table and is intended for effecting the automatic forward and backward motion of the milling orlike machine table and the simultaneous automatic operation of the dividing head, which supports the piece or material to be operated on7 after the backward movement of the milling or like machine tablehas been eifected.

The attachment is to be used with a milling machine of a known kind, and being placed on the working or reciprocating, table of the machine eifects by means of gears and clutches inclosed in it, 'and by means of shaft ends projecting from the casing and change wheels on the main portion of the known machine the entire automatic forward and backward movement of the table as well as the ste by step movement of the dividing head w ich holds the piece to be worked.

By the use of this attachment the management of the known machine as for instance any existing universal milling or like ma'-` is enabled to look after a number of machines simultaneously. A

The dividing head may be adjusted to any angle so that with the machine converted into an automatic machine the most varied work of shaping with the exception of spiral sha ing can be carried out.

e invention is of special importance in shops where in consequence of insuflicient employmentv therefor, the setting up of special machines would not prove remunerative.

After the supplementary apparatus has been removed the machine can be worked again in the ordinary way.

The invention is illustrated by `way of example in the accompanying drawings.

Figure 1 is a front elevation of the suplementary apparatus partly in section.

ig. 2 is a plan with the cover of the 'casing removed. Fig. 3 ig a section through A B in Fig. A1. Fig. 4 is a section through D in Fig. 2. Fig. 5 is a plan of Fig. 4. Fig. is a horizontal section through the engaging colililpling. Fig. 7 is a general view of a m' ing lmachine fitted with the supiple- Figs. `8, 9, 10 an 11 mentary apparatus. are views o details.

, The reciprocating table of the ordinary millin machine is shown at a;

At I show the cutting tool of any form; c is the piece being cut and d the dividing head by which the work iece is held and adjusted step by step, a of these parts being Well known.

My attachment comprises a casing A detachably fixed to the table a in any suitable manner, said casin carr ing the mechanism which I will now escrihe.

The driving pulley 1, which is rotated by any preferred source of power, is fixed on the shaft 2 seated in the box or casing A and carrying the worm 3. This worm engages with a worm wheel 4 on the shaft 5, from which, for moving the table a forward, the motion is transmitted through the medium of the spur wheels 6,- 7 tothe shaft 8. The spur wheel 7 is keyed at 7 to a clutch member 7 loose on the shaft 8. This clutch member is adapted to be engaged by a clutch 9 splined on the said shaft 8. On the either directly or through the medium of an intermediate spur wheel engages with the of the table spindle 12. On the shaft 5, moreover, a tooth wheely 13 is'ixed, which acts on the loose spur wheel 15 on the shaft 8 by means'of a wheel 14. This wheel 15 has clutch teeth at 14 adapted to be enaged by the clutch 9 when reversed to thus ring about the backward movement of the table.

The reversing of the coupling 9 is effected by means of a fork 16 (Fig. 3) by which 1t is embraced." and which engages with its rollers or pins in a central groove 9X 1n this coupling. The fork 16 is seated on a shaft 18 which carries outside the casing, the double arm lever 17. The lever 17 is connected by means of a pin 19 with the lever 20, which is connectedwith thecontrollin or shifting rod 21. The pin 19 is screwe into the lever 20 and engages with a certain play in a suitable hole 17a in the lever 17. It can be screwed in the other hole 17b of the lever 17 in order to transmit the movements pof the lever 20 to the one or other arm of the spur wheel 11 whloh is held on the Outer endv shaft 8 is also fixed the spur wheel 10, which lever 17 according to the direction in which the machine is working; that is, if the Work piece lies to the left of the cutting tool the `pin is placed in the hole 17a but if the work piece is atthe right of the cutting tool and the cutting is done on the leftward stroke of the table the pin is placed in the hole 17h. On the engaging rod 21 adjustable adjusting rings 22 are provided for shifting the rod by striking extension 23 which is fixed to the lower part of the carriage of the shaping frame.

In 'order that the reversing action coinmenced through the stop 23 may be reliably carried out to the end, an adjusting lever 24 fixed on the shaft 18 is furnished with a roller 25, against which a vertically arranged spring rod 26 lies, the upper part of which that contacts with the roller 25 is of a wedge shape. As soon as the movement of the lever carries the roller 25 slightly to one side of'thevertical center of the spring bar the said bar is forced upwards under the action of the spring 25X that surrounds-it so that the adjusting lever 24 is forced to complete its movement, which movement is communicated through the shaft 18 to the fork 16, and is great enough to effect the reversing of the coupling 9. It will also be easily seen that a reversal of the clutch 9 can also be effected independently of the stop 23 by turning the lever 24 by hand.

Besides the automatic control of the back and forth movement of 'the table by the described apparatus forming the attachment, the necessary movement of the dividing head for the exact adjustment of the piece of Work is effected from the shaft 5. For this purpose a spur wheel 27 (Fig. 2) is fixed on the shaft 5, and me'shes with a loose Wheel 28 on a shaft 29. rlhe hub of the wheel 28 is provided with clutch teeth 28X to be engaged by a coupling part or clutch 30 seated in front of it and splined to the shaft 29 as shown in Fig. 6. On the outer end of lthe Shaft 2921 a spur Wheel 29 is keyed, which with the assistance of suitably chosen change wheels transmits the movement of the shaft 5 to the dividing head when the coupling 30 is connected with the clutch teeth of the gear 28 and thus to the desired extent, the dividing head carrying the Work piece. For this purpose, the lever 24 is connected with a connecting rod 31 (Fig. 5) which carries a cam projection 32 to lift a lever 35 by engaging a projection-33 thereon. This lever has a projection 35x which engages from below a projection 34X on a lever 34 pivoted to the frame at 34 (see Figs. 4 and 5). These levers normally hold res ectively the clutch 30 out of operation and) a disk 36 against movement. The disk 36, Fi s. 6 and 8, is keyed to the shaft 29 and so dong as it (the disk) is held by the pawl lever 34 and the 65 clutch 30 is held back by the pawl lever 35 out of engagement with the clutch teeth of the gear 28 the shaft 29 will be held immovable and consequently also the dividing head and work piece will be held against adjusting movement, but when the levers 35, 34 are raised the clutch 30 is thrown into action by its spring 37 Fig. 6 and the movement of the gear 28 is transmitted to the. shaft 29 and thence through any suitable gearing of which the gear 29a forms a part,

to the dividing head and work piece.

The operating of the rod 31 by the lever 24v and the consequent release of the levers 34, 35 (Figs. 4, 5, 1.() and ll) takes place when the movement of the table has been completed in one direction and therefore the movement of the shaft 29 takes place to adjust the dividing head and work piece one step forward to present a new part el' the work piece to the tool to be operated on thereby. The levers 34 and 35 each have a depending arm as 34/ and 35@ Fig. 4, connected with springs, one of which is shown at 34 and by these springs the levers are drawn down into operative position to engage the clutch 30 and the disk 36 to hold the parts inactive and the dividing head at rest. The lever 34 has a projection 34", Fig. 4, which engages a suitablenoteh or recess in the periphery of the disk 36 to hold 95 it against movement, as shown in Fig. 4, and the lever 35 has a depending pin 38 to engage a ,cam shoulder 35d on a ring 35C, Figs. 4 and 9, fixed to the clutch member 3() by a screw 30X, Fig. 6. By the contact of 100 this inclined cam shoulder with the pin 35c the clutch 30 is drawn back out of engagement with the clutch teeth 28 of the gear 28 and at the same time the projection 34C of lever 34 engages the notch in the disk 36 105 to hold the parts against movement until the next backward movement of the table is about completed, when -these parts are again released to cause the adjustment of the dividing head. The clutch 30 is forced lio forward when released from the pin 38 of lthe lever 35 by its spring 37.

The projection 33, Figs. 4 and 1'1, consists of an arm of a lever pivoted at 33u to the lever 35 and having an upwardly extending 115 arm 33b under tension of the spring 33n which holds the projection 33 up with a yielding pressure. l/Vhen the projection 32 strikes the projection 33 on one stroke it lifts the same together with the lever 35 for 120 -performing the operation above described,

but when the'rod 31 moves in the reverse direction the projection 32 can ride over the sup ort for giving a step by `step movement l to t e dividing head of the milling or like machine, the two sets of driving connections being relatively timed to perform their functions inW predetermined order substantially as described.

2. Anattachment for universal milling and like machines for converting said machine into an automatic machine consisting of a casing or support7 having means for detachably connecting it with the reciproeating table ofthe milling machine, a driving member and driving connections sup orted thereon for giving a forward. and bac 'ward movement to the table, and driving connections also carried by said detachable support for gi g a step by step movement lto the dividin head of the milling or like machine, the riving connections first mentioned comprising gearing for giving the forward movement 'to the table, gearing for giving .a backward movement thereto, a

clutch with means for operating it to throw into6 action either one gearing or the other, means for controllin lsaid clutch from the movement ofthe w`or table, and the driving connection last mentioned comprising gearing and a clutch operated at a certain point to cause said gearing to move the dividing head with means for throwing said clutch out of o eration automatically when the dividing hea is adjusted, substantially as described.

3. Arr attachment for universal milling and like machines for converting said machines into an automatic machine, consisting of a casing or support having means for detachably connecting it with the work table of the milling machine, a driving member and driving connections su ported thereon for giving the work table a orward and an accelerated backward movement, driving connections for giving a step by ste movement to the dividing head, and av clutc foreach driving connection with means for operating said clutches in proper order.

In testimony whereof I affix my signature in the presence of two witnesses.

GEORG REYHER. Witnesses:

WOLDEMAR HAUPT, HENRY HAsPER.

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