US1871002A - Roll grinder - Google Patents

Description

g- 9, 1932- R. c. LEWIS ET AL 1,371,002

ROLL GRINDER Filed Sept. 25, 1928 4 Sheets-Sheet l Adg. 9, 1932. R. c. LEWIS ET AL ROLL GRINDER Filed Sept. 25, 1928' 4 Sheets-Sheet 2 ROLL GRINDER 4 Sheets-Sheet 3 Filed Sept. 25, 1928 Aug. 9, 1932.. R. c. LEWIS ET AL 1,871,002

ROLL GRINDER Filed Sept. 25. 1928 4 Sheets-Sheet 4 Patented Aug. 9, 1932 RICHARD o. LEWIS, or A soNrA; AND cent 1?.

SCHNUCK, on NEW HAVEN, ooNN ncra ICUT, ASSIGNORS TO BARREL-BIRMINGHAM COMPANY, Inc, or ANSONIA, ooNNEorI- Icur norm GRINDER Application filed. September 25, 1928. Sea 6. 308,254.

positions relatively to the work.

Relatively long rolls require considerable time to grind and being of considerable weight, are cumbersome and diflicult to set up in the grinding machine. It is desirable to completely grind these rolls Wherever such work is required on the machine where the roll is originally setup so that all the surfaces ground will'be vconcentric'or otherwise properly related to each other. A machine capable of performing all of the grinding operations required upon a roll, without readjusting or resetting theroll, greatly increases the-accuracy of the finished product and reduces the cost of the same by a considerable saving in labor and time. 7

This invention contemplates the provision of a grinding machine wherein a roll may be accurately ground on its periphery and have its ends ground at an angle to its peripheral surface, beveled or rounded as desired, without readjusting or resetting the work relatively to the grinding wheel.

One of the ob 'ects of this invention is to provide an improved roll grinding machine.

Another object ofthis invention is to provide in a grinding machine an improved grinding wheel supporting structure.

Another object of this invention is to provide a swivel grinding wheel support.

Still another'object of this invention is to provide a grinding wheel support which will be provided with means to feed the grinding wheel axially along, toward and away from, and be swingable relatively to, a the work mounted in the work support.

' A further object of this invention is to provide novel and improved means for feeding and swiveling the grinding wheel of a roll grinding machine relatively to the Work mounted therein, and which will operate effi ciently and without afi'ectingthe rigidity and relative position required between the wheel and the work. I

To these and other ends, our invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. 1 is a plan view of a machine embodying the features of this invention;

Fig. 2 is a front elevation'of the machine;

Fig. 3 is a section on line 3-3 of Fig. 1; 1

Fig. 4: is a top plan view of the grinding wheel. supporting structure; I

Fig. 5 is a section on line 55 of Fig. 1; Fig. 5 is a partial section online 5 5 of Fig.5;

Fig. 6 is a top plan view of the grinding wheel supporting structure moved into a different position than that shown in Fig. 1,

and in which certain parts have been omitted for the sake of'clearness;

Fig. 7 is a top plan view of a grinding wheel supporting structure of somewhat modified form; t

Fig. ,8 is a front elevation of the same, and Fig. 9 isa section on line 99 of Fig. 7 The grinding machine selected to illustrate the features of thisinvention, generally comprises a frame 10 upon which is mounted suitable work supports comprising a power driven head stock 11 and an adjustable tail stock 12. A tool carriage 13 is'provided and mounted upon suitable ' guideways 14 and 15, secured or formed upon the frame 10. The carriage 13 is adapted to be reciprocated upon the guideways 14 and 15 in an axial direction relatively to the workmounted between the work supports. Suitable power operated means 16 is provided and mounted upon the carriage 13 to reciprocate it. The reciprocating means comprises a motorl'T, a train of gears 18, including reversing mechanism, and a driven pinion 19, which cooperates witha stationary rack20, secured to the frame 10.

A grinding wheel supporting structure is also provided'and mounted upon the carriage 13. In this instance, two grinding wheels 21 and 22 are provided and mounted upon. the

16 generally cooperate with clutch member ally mounted on the subbase129 and there;

fore the grinding wheels are swingable relatively to the work, and the axis thereof may be disposed at any angle to the axis of the work which is desired. Mechanism for swiveling the base i 28 is provided and mounted thereon. The base 28 is pivoted to the sub-base 29 at .30 by the cooperation between a stud 31 on the sub-base 29witha roller bearing 32, secured within an openingv in the base 28. A plurality of annular engaging surfaces 33 and 34 are respectively formed upon the base 28 and sub-base 29 to support the base upon theupper surface of the sub-base 29.

An annular rack 35, concentric to the pivot point 30 is provided and is secured upon the periphery of the sub-base 29. In meshwith the teeth of the rack 35 is a pinion 36 mounted upon the end of a vertical shaft 37, which is journaled in a bearing 38, secured to the base 28. A worm wheel 39 is secured to the upper end of shaft 37, the teeth of which are in mesh with a worm 40, secured upon a horizontal shaft 41. I

' The shaft 41 passes into a clutch or gear box 42, being journaled'in the bearing 43 V therein, and is keyed to a clutch member 44. One end of a clutch sleeve is adapted to 44 to engage the same. The clutch sleeve 45 is rotatably mounted partly upon an end extension 46 of the shaft 41 and partly upon the end extension 47 of a shaft 48, which is in alignment with shaft 41, and also passes into and is journaled in the box 42 in a bearing 49. A

bevel gear 50 is keyed to the clutch sleeve 45,

i the sleeve being adapted to slide axially rel- 7 motor shaft52 to permit atively to this gear and upon the shaft end . extensions 46 and 47, so as to permit an operative connection between the same and the clutch member 44, to drivingly connect the gear 50 thereto. A bevel pinion 51 is in driving engagement with the gear 50. The pinion 51 is mounted upon a shaft 52, which is an extension of the shaft .of an electric motor 53. The motor 53 ismounted upon the wheel base 28. A handwheel 54 is secured upon the manual rotation thereof when this is desired.

The other end of the clutch sleeve 45 is adapted to engage a clutch member 55'keyed upon the shaft 48. Both of the clutch members 44 and 55 are suitably retained against axial movementby means of thrust bearings 56 and 57 respectively,which are secured to The wheel base 28 is opposite sides of the gear box 42, which houses the aforesaid parts. 'The clutch sleeve 7 45 may be reciprocated to operatively engage either clutch member 44 or 55, or to be disposed in a neutral position out of engagement with either. A clutch lever 58, through the medium of a vertical shaft 59 and links 60, which engage trunnions provided upon .slidably supported thereon by the cooperation between suitably formed guides 62 and guideways 63, respectively formed upon the sub base 29 and carriage 13. In the arrange? ment shown, the sub-base 29 is slidable upon the carriage 13 in a direction transverse to the axis of the work and substantially at right angles to the direction of the reciprocating movement :of the carriage 13. j To obtain the aforesaid transverse sliding movement of the sub-base 29, the following mechanism is provided. A lead screw 64 is secured to the carriage 13 and retained thereto against rotation. The screw 64 extends beneath the sub-base 29 and isdisposed with its axis parallel with the guides 62 and guideways 63. A sleeve nut65, journaled in a lug 66, secured .to and dependingfrom the subbase 29 is adapted to threadingly engage the screw 64. A bevel gear 67 is mounted-upon andsecured to the nut 65, with its teeth in mesh with a pinion 68. I Thepinio-n '68 is secured upon the lower end of the vertical shaft 69, which is journaled in the sub-base 29 and extends upwardly through the stud 31, concentricwith the axis of the pivot point 30, between the'base 28 and sub-base'29. A bevel gear 70-is secured to the upper end of the shaft 69, and is in driving engagement with a bevel pinion 71, pinned to the shaft 48, which extends intoa gear box 72, being journaled in a thrust bearing'73therein. The gear box 72 houses the gear 70'and pinion 71 as well as providing a bearing for a handwheel shaft 74, which extends into the box at an angle with the axis .of the shaft 48, and is connected thereto by means of auniversal'joint coupling 75.

A- hand-wheel 76 is secured to the outer end of shaft 74, to permit the manual operation of the nut 65, pon'the screw 64, to slide the sub-base 29 upon the carriage 13. 1' I By means of the reciprocable feeding 1 movement provided for the carriage '13, it is obvious that the grinding "wheel may be moved axially with'respect to the work in either direction. By means of the above described mechanism for transversely feeding the sub-base 29, the grinding wheels may be moved transversely with respect/to the axis ofthe work, and by means of the above described mechanism for swinging the wheel I base 28 with respect to the sub-base 29, the grinding wheel may beswiveled relatively to the work into the position shown in Fig;

, Preferably, power isapplied for coarse and fast adjustments and the hand-wheels used to manually obtain fine adjustments. 7

Fig. 6 illustrates one use for which the swivel arrangement for the grinding wheel may be put. In this case,one of the grinding wheels is being used to grind the end surface of a roll It will be obvious that if the base 28 is only partially swung-about its pivot 30 relatively to the sub-base 29, a bevel of any desired angle can be'ground upon the end of the 'roll, and that in a ma-- chine ofthis type, by keeping the grinding wheel in contact'with the peripheral surface of the roll up to its end and then swinging I the wheel base 28 upon its pivot, while backing up the sub-base, a rounded corner might be formed. Preferably, however, a formed wheel would be used-when forming a rounded corner, the wheel being set at an angle and fed against the corner. It is also to be noted that any and all of these operations may be performed without disturbingthe original setting of the roll between the supports therefor, and that, therefore, the time and labor consuming operations of resetting the rollfor these different operations has been eliminated and that accuracy in the location and form of the cutsmade will be assured.

' Figs. 7 8 and 9 illustrate a somewhat-modified form of mechanism for obtaining the same results. In this instance, a sub-base is provided with internal'teeth formed upon a ring segment 81, secure'd thereto.. A gear 82 secure upon a shaft, is in driving engagement with the ring segment 81, and is in turn driven by a cha n of gearing 83, incuding a worm wheel 84 and worm 85; V The worm 85 is secured to the shaft ofthe motor 86.

Operation of this mechanism will rotate the wheel base 87 upon a pivot 88,'disposed between the same and the sub-base 80, A feed screw 89, journaled in the sub-base 80, and rotated by means of a-worm wheel 90 and worm 91, which is secured upon the shaft of a motor 92, cooperates with the threads 93 provided in the lug 94, secured upon the carriage 95 to slide the sub-base 80 transversely thereof.

As in the previously described form, the sub base 95 is sl d-able upon frame 96 by suitable mechanism operating through a pinion 97, which is'in driving engagement with the rack 98, secured to the frame 96. Grinding wheels 99 and 100 are mounted upon the wheel base 87, and driven by means of motor. 101, by the use of a belt 102..

,While we have shown and described a preferredembodiment of our invention, it is understood that it is not to be limited to all of the'details shown, but is capable of modification and variation, whichwill lie within. the spirit of the invention and the scope of the appended claims.

What we claim is: 1. In a grinding machine, a frame, work supports, agrinding wheel adapted to oper ate upon work in said supports, means to cause said grinding wheel-to traverse the- .work axially thereof, means; to move said wheel toward and away fromthe work transversely of the axis thereof, and ,means to swing said grinding wheel into aposition wherein its axis is at an angle to the axis of the work, a sourceof power, and means to connect and disconnect either ofsaidtwo last na-med means to said source of power.

2. In a grinding machine, a frame, a carriage reciprocably mounted upon said frame,

means to reciprocate said carriage longitudinally of said frame, a sub-base slidably mountedupon said carriage for movement in a direction transverse to the direction of the movement of said carriage with respect to said frame, and a grinding wheel base pivotally mounted upon said sub-base, and com mon power means to move said sub-base relatively to said carriage, and to rotate said wheel base upon saidsub-base. 3. In a grinding machine, a frame, a carriagereciprocably mounted upon said frame,

means to reciprocate said carriage longitudinally of said frame, a sub-base slidably Ili mounted upon said carriage for movement in a direction transverse to the direction of the movement of saidcarriage with respect to said, frame, and a grinding wheel base pivotally mounted upon said su-b'base, and com- I, 4

mon power means mounted on said wheel base to move said sub-base relatively to sa1dcar riage and to rotate said wheel base upon said sub-base, and means to connect said power means to the respective part to be moved, and f.

to disconnect the other part therefrom.

'4, In -.a grinding machine, a reciprocable carriage, a sub-base slidably mounted upon sald carriage, agrinding wheel base'pivotal- 1y mounted-upon said sub-base and common I means to move said sub-base and swing said wheel base upon its pivot.

5. In a grinding machine, a, reclprocable carriage, a grinding wheel base mounted upon said carriage for sliding and pivotal, movement relatively thereto, and common means to selectively slide and swing said wheel base.

and to swing said wheel base uponits pivot, r

and additional means to move'said sub-base 6. In ajgrinding machine, a reciprocable on said carriage when said common means is disconnected therefrom.

7. In a grinding machine, a reciprocable carriage, a grinding wheel base mounted upon said car 'iage for sliding and-pivotal movement relatively thereto, and means selectively operable to slidesaid wheel base or to swing the same. 7 1

8. In a grinding machine, a reciprocable carriage, a grinding wheelbase mounted upon said carriage for slldlng and pivotal move ment relatively thereto, and power operated means selectively operable to slide said wheel base or to swing the same. V

9. In a grinding machine, a'reciprocable carriage, a grinding wheel base mounted upon said carriage for transverselysliding move 10. In a roll grinding machine, means to V rotatably support and rotate a'roll, a carriage mounted to reciprocateaxially with respect to the roll, a sub-base mounted upon said carriage to slide transversely relatively to the axis of the roll, a grinding wheel support mounted to swing in a horizontal plane, means to slide said sub-base, and means to swing said wheel support, both of said means being mounted on said wheel support, a common power drive for said last two mentioned means, and means to selectively connect said power drive with either of said'means.

11. In a roll grinding machine, means to rotatablysupport and rotate a roll, a carriage mountedto reciprocate axially with respect to the roll, a sub-base mounted uponsaid carriage to slide transversely relatively to the axis of the roll, a grinding wheel support mounted to swing in a horizontal plane, means to slide said sub-base and means toswing said wheel support, both of said means being mounted on said wheel support,a common power 'drive'for said last two ,mentioned means, and means to selectively connect said power drive with either of said means, and manually operable means to slide said subbase, when said common power drive is disconnected therefrom.

12. In a roll grinding machine, means to rotatably support and rotate a roll, a carriage mounted to reciprocate axially with respect to theroll, a sub-base mounted upon said carriage to slide transversely relatively to the axis of theroll, a grinding wheel support mounted on said sub-base to swing in a horizontal plane, an electric motor mounted on said wheel support, and means to operably connect said electric motor with said subbaseto slide the same, and operably connected withsaid wheel support to swing the same,

connect said electric motor with-said subbase to slide the same, and to operably con-v nect saidmotorzwith said wheel support to swingthe same, said means operably disconnecting said motor from one when connecting it tothe otl1er, a'nd means to slide said subbaseindependently of said'motor.

14. In a grinding machine, a .carriage, a sub-base slidably mounted on saidcarriage, a grinding wheelbase pivotally mounted on said sub-base, means to swing said wheel base relatively to said sub-base disposed above said subbase, and means to slide said subbase upon said carriage disposed below said subbase, means disposed above said sub-base to operate said swinging and sliding means, and means passing through said sub-base to operably connect said operating means with said sliding means.

15. Ina grinclingmachine, a carriage, a sub-base slidably mounted on said carriage, a grinding wheel base pivotally mounted on said sub-base, means to swing said wheel base relatively to said sub-base disposed above said sub-base,'and means'to slide said subbase upon said carriage disposed below said sub-base, means disposed above said sub-base to operate said swinging and sliding means, and; means ,passingthrough the pivot point between said sub-base and said wheel base to operably connect sai'd operating means with said sliding means. r

16.'In a grinding machine, a carriage, a sub-baseslidably mounted on said carriage, a grinding wheel pivotally mounted on said sub-base, means to-slide said sub-base including a shaft, means to swing said grinding wheel including a shaft, and rotatable means mounted partly oneach shaft and shiftable axially thereof in one direction to drive one shaft, and in the other direction to drive the other shaft.

17. In a grinding machine, a carriage, a grinding wheel mounted upon said carriage for sliding and swinging movements relativelythereto, means to slide and means to swing said grinding wheel, each of said means including a shaft, and rotatable'means mounted partly on each shaft and 'shiftable axially thereof in one direction to drive one shaft and in the'other direction to drive the other shaft. 7 Y i 18. In-a grinding machine, a carriage, asub-base slidably moimte'd onsaid carriage, a

grinding wheel base pivotally mounted on said sub-base, means to swing said wheel base relatively to said sub-base including a shaft, and means to slide said sub-base upon said carriage including a shaft, means to operate said swinging and sliding means, and means passing through said sub-base to operably connect said operating means with said sliding means, said operating means including rotatable means mounted partly on each of said shafts and shiftable axially thereof in one direction to drive one shaft, and in the other direction to drive the other shaft.

In witness whereof, we have hereunto set our hands this 22nd day of September, 1928.

p RICHARD O. LEWIS.

CARL F. SCHNUCK.

Images