US1556852A

US1556852A - Profiling machine

Info

Publication number: US1556852A
Application number: US644387A
Authority: US
Inventors: Ducer Jerry J La
Original assignee: Pratt and Whitney Co Inc
Current assignee: Pratt and Whitney Co Inc
Priority date: 1923-06-09
Filing date: 1923-06-09
Publication date: 1925-10-13
Anticipated expiration: 1942-10-13

Description

J. J. LA nucl-:R

PROFILING 'lucarne .Filed Juno 9, 1923 A TTORNEY Cil Patented Oct. 13, 1925.

UNITED STATES PATENT CFFICE.

JERRY J. LA DUCER, OE HARTFORD, CONNECTICUT, AssIGNoR To rRATTa` WHITNEY COMPANY, OE NEW YORK,N. Y., A CORPORATION OE NEW JERSEY.

PROFILING MACHINE.

Application filed June 9,

To all whom t may concern:

Be it known that I, JERRY J. LA DUOER, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Profiling Machines, of which the following is a speciication.

This invention relates to machine tools,

and particularly to profiling' machines.`

Such a machine, as illustrated inthe accompanying drawing, broadly vcomprises a base, a. work table slidably mounted thereon, a cross rail supported on the base over the table, and one or a plurality of tool spindle supports slidable on the cross rail. Such machine ordinarily works to a pattern and the operator is required, during the operation of the machine, to manually move the work table and tools in a manner to .follow the cross rail by supporting much of the weight thereof on anti-friction rolle-rs, means being provided for adjusting the roll ers as may be desired. The primaryy objecty of thel invention is to provide improved means for performing the functions stated.

Another Object of the invention is to provide each tool support with a plurality of levers, each lever carrying an anti-friction roller for engaging with the guideway of the cross rail, and means, preferably including resilient means, for individually ad justing each lever to support a desired portion of the weight of the tool support ou the rollers.

lVith the above and other objects in view, my invention consists in the features of construction and operation setforth in the following specification and illustrated in the accompanying drawing. ln such drawing annexed hereto and forming a part of this specification, I have shown one embodiment of my invention as applied to the tool supports of a profiling machine, but it will be understood that the invention can be otherl 1923. seriali No. 644,387.

wise embodied and that the drawing is not tozbe construed as `defining or limiting the scope of the invention, the claims appended to this specification being relied upon for that purpose.

Referring to the figures of the drawing: Figure 1 is a fragmentary front elevation of'a profiling machine embodying my invention. Y

ig.`2 is a side elevation thereof.

Fig. 3 is an enlarged fragmentary sectional View showing my improvement.'

Referring more specifically to the drawing by reference characters,'1 indicates the base of the machine having a table 2 slidably mounted on horizontal ways- 3 thereon. A pair of uprights 4 respectively bolted to the base at opposite sides of the table supporta cross rail 5 thereon over the table. Two tool spindle supporting saddles Gare illustrated as slidablymounted on the vrail and movable therealong by means of a screw 7. A pair of tool spindles 8 are supported .vertically in heads 9 slidable vertically in the saddles 6.- Each spindle 8 carries a tool 10 andeach head 9 carries a former pin 11 adjacent the tool for cooperating with a pattern in the well-known manner.

The tool spindles 2 8 are adapted to be rotated from a shaft 12. This shaft is driven through gearing 13 operated by a belt 14. The spindles may be moved vertically by

operating handles

15 and 16. These and other cooperating mechanism not specifically illustrated and described herein are more` specifically illustrated and described in my said copending application.

The table 2 is adapted to be moved along its ways by means of a screw 17. The screw may be rotated to move the table by means of a handle 18. The screw 7 may be rotatedA to move the tool support 6 along the cross rail by means of a handle 19. The operative connections from the said handles to the elements moved thereby are specifically illustrated and described in my before mentioned copending application.

The cross rail 5 is provided with two horizontally extending

guideways

20 and 21. The saddles 6 are supported in sliding contact with the lower guideway 21, a gib 22 being interposed between guideway 21 and each saddle 6 in the usual manner. A pair of members or levers 23 are pivoted on each saddle above the guideway 20. Each of wir these levers comprises a downwardly extending arm 23a and an upwardly extending arm 23h.

kfor the usual operation of the machine, the

screw plugs 25 are so adjusted that the greater'portion of the weight of the saddles is carried by the rollers 24. Suicient weight is left on the lower guideway 21 to leep the 'saddles in sliding Contact therewith. The interposed springs 26 function to 4maintain a'sinooth and constant counterbalancing of the saddles as will be underi stood.

The operation and advantages of my improved mechanismare believed tobe clearly apparent from the above description. It will be vnoted that the work table is adapted to be moved in one direction by the operating handle 18 and the tool supports 6 are adapted to be'y moved in a relatively right angular direction by the handle 19. The table is rendered easily operative by the counter-balancing lmechanism described in my aforementioned application and the tool supports are rendered easily operative by my improvements disclosed herein. In such vrimprovements, the-fine adjustment of the screw plugs 25r permits the carrying of the greaterp'ortion'ot the load of thev supports 6r` uponr the anti-friction rollers 24. The operner-to ator can therefore vwith little' effort move suchsupports along` the cross rail in a man.-

keep the'former pins 1l in contact with the pattern.- It should be understood that -ordinarily one tool l() is' a'iofughing tool and the other Vtool 10 is a inishing tool.

f Such arrangement permits the rough cutting and iinishing of al Vwork piece 4from a "single pattern and at' one mounting of the y' workpieceon the'table.

`That lI claim is: l. In a machine tool,the combination of a guideway support, aV carriage slidablyr mounted thereon, a member'pivoted to the` carriage and having ktwo arms radiating from the pivot, an anti-friction roller on one arm and in rolling contact with the lguideway, andv means engaging the other arm for adjusting' the same about its pivot in a manner to transmit a portion of the weight of the carriage tothe roller and guideway.

2. In a machine'tool, rthe combination of An anti-friction roller 24V-is mounted inthe end ofeach arm 2?)a and in al gui; eway support, a carriage slidably mounted thereon, a member pivoted to the carriage and having two arms radiating from the pivot,.an anti-frictionroller on o ne armv and in rolling ,contact with' the guide- Vway, resilient means engaging the other arm,

and means for adjusting the resilient means to move the member about its pivot in a manner totransmit a portion oitl the weight of' the carriage to the roller and guideway.

3. In a machine tool, thecombination of a guideway s-upport, a carriage slidably mounted thereon, a bell crank pivoted to the carriage, an anti-friction roller on one arm 'of the bell cranlrand in rolling contact with the guideway, and adjustable resilient means engaging the other arm of the bell crank for adjusting the same about its pivot in a manner to transmit a portion of the weight of the carriage to the roller andL guideway.

4. In a machine tool, the combination of a guideway support, a carriage slidably mounted thereon, a plurality of members each pivoted to the carriage and having two arms radiating from the pivot thereof, an anti-friction roller oiifone arm of each member and in rolling contact with the support, and adjustable resilient means engaging the other arms of the members for adjusting the same about their pivots in a manner to transmit a portion of the weight of the carriage tothe rollers and support.

5. In a machine tool, the combination of a guideway support, ay carriage slidably mounted thereon, a plurality of members each pivoted to the carriage and including a radiating arm, an-antifiiction roller on -eacli arm in rolling contact with the support, and adjustable resilient means cooperating with the members for independently adjusting each member about its pivot in a manner to transmit a `portion of the weight of the carriage to the rollers and support.

6. In a machine tool, the combination of a guideway support, a Acarriage slidably mounted thereon, a plurality ofk members each pivoted to the carriage .and having two Aarms radiating from the pivot. thereof, an

anti-friction roller on one arm oi each member and in rolling contact with the support, and means engaging the other arm` of each member for independently adjusting each member .about its pivot in a manner to transmit a portion oi the weight ofthe c-arriage to the'rollers and support.

7 In a machinetool, the combination of a guideway support, a carriage slidably -mountedthereon, a lever pivoted to the carriage, an anti-friction roller on the 4lever and in rolling contact with the guideway, an elementscrew threaded tothe carriage,

Iand aspring between the ,element and lever,

the construction being such Athat rotation of the element adjusts the lever about its pivot in a manner to transmit a portion of the weight of the carriage to the roller and guideway.

8. In a machine tool, the combination of a guideway support, a carriage slidably mounted thereon, a lever pivoted to the carriage and having two arms radiating from the pivot, an anti-friction roller on one arm of the lever and in rolling contact with the guideway, an element screw threaded to the carriage and a spring between the element and the other arm of the lever, the construction being such that rotation of the element adjusts the lever about its pivot in a manner to transmit a portion of the weight of the carriage to the roller and guideway.

9. In a machine tool, the combination of a work support, a horizontally extending cross rail over the support, a tool carriage slidably mounted on the rail, a plurality of levers pivoted to the carriage, an anti-triction roller on each lever and in rolling contact with the rail, and means including resilient means for independently adjusting each lever about its pivot in a manner to transmit a portion of the weight of the carriage to the rollers and rail.

10. In a machine tool, the combination of a work support, a cross rail over the support, the rail having a horizontally extending guideway thereon, a tool carriage slidably mounted on the rail, two levers respectively pivoted to opposite sides of the carriage over the guideway, an anti-friction roller on each lever and in rolling contact with the guideway, and means including resilient means for adjustably moving the levers about their pivots in a manner to transmit a portion of the weight of the carriage to the rollers and guideway.

11. In a machine tool, the combination of a work support, a cross rail over the support, the rail having a horizontally extending` guideway thereon, a tool carriage slidably mounted on the rail, two levers pivoted to the carriage over the guideway, each lever having an upwardly extending' arm and a downwardly extending arm, an antifriction roller on each downwardly extending arm and in rolling contact with the guideway, and screw threaded means c0- operating with the upwardly extending arms for adjusting the levers about their pivots in a manner to transmit a portion of the weight of the carriage to the rollers and guideway.

12. In a machine tool, the combination of a support, a pair of horizontally extending guideways thereon, one guideway being vertically above the other, a carriage slidably mounted on the support and in sliding contact with the lower guideway, resilient antifriction means on the support andin rolling contact with the other guideway, and screw threaded means for adjusting the first said means to vary the amount of weight of the support carried by the anti-friction means on the upper guideway.

In testimony whereof, I hereto al'lix my sig-nature.

JERRY J. LA DUCER.