US710807A - Attachment for lathes. - Google Patents

Description

Patented Oct. 7, |902. yFi. M. RUSSELL.

ATTACHMENT FOR LATHES.

(Application med ont. a, 1901.)

3 Sheets-Sheet l.

(No Model.)

WITNESSES:

ATTORNEYS.

No. 7I0,807. Patented Uct. 7, |302* R. M. RUSSELL ATTACHMENT FOR LATHES.

:Application fixed out. a, 1901.)

3 Sheets-Sheet 2 (No Model.)

3/ v INVE OR QM 272./ BY OQITORNEYS.

.No. 7l0,8'07. Patented Oct.A 7, |902.

R. M. RUSSELL.

ATTACHMENT FOB LATHES'.

(Application inea oct. s, '1901.

3 Sheets-Sheet 3Q (No Model.)

a4 TTORNE YS.

ma Nonms Farina co, PHoTaLrmo.. wAsHmGToN. D. c.

UNITED STATES PATENT OEEICE.

ROSS M. RUSSELL, OF BINGHAMTON, NEW YORK.

ATTACHMENT FOR LATH ES.

SPECIFICATION forming part of Letters Patent N0. 710,807, dated October 7, 1902.

Application filed October 3, 1901. Serial No. 77,420. (No model.)

To all whom t may concern.:

Be it known that l, ROSS M. RUSSELL, of Binghamton, in the county of Broome, in the State of New York, have invented new and useful Improvements in Attachments for Lathes, of Which the following, taken in connection With the accompanying drawings, is a full, clear, and exact description.

My invention relates to attachments for lathes, having more particular reference to a grinding attachment for metal-Working machinery.

The object of this invention is to provide a rotary grinding member actuated by one of the rotary parts of a lathe or similar machine to which my invention is attached.

A further object is to connect the grinding member in such manner as to enable the operator to control its movement.

Another object is to mount the grinding member upon a revoluble support having an endwise movement, which permits the operator to move said member lengthwise of its axis, said grinding member being adapted for grinding centering-points and for various internal or external grinding, either parallel with or at an angle to its axis.

A further object is to so arrange and com-` bine the various parts of my invention as to adapt the same for grinding or polishing tools or implements of various sizes and shapes.

To this end the invention consists in the combination, construction, and arrangement of the various parts of my improved grinding attachment, as hereinafter fully described, land set forth in the claims.

Referring to the drawings, Figure 1 is a top plan of my invention, showing a face-plate, cone, and centering-pin, the grinding attachment being shown in position for sharpening the centering-pin. Figs. 2 and 3 are sectional views taken, respectively, on lines 2 2 and 3 3 of Fig. 1. Fig. e is an end view of the attachment seen in Fig. 1, shown as detached from the tool-post of the lathe. Fig. 5 is a sectional view taken on line 5 5 of Fig. 4, the section of the shaft-bearing, the friction-Wheel, and its supporting-yoke being omitted and the adjacent section of the shaft being broken away in proximity to the pulley. Fig. 6 is a top plan of a slightly-modified form of my invention, the grinding member and its support being adapted for sharpening rotary cutters or milling-tools. Fig. 7 is an end View of the device seen in Fig. 6, a milling-tool being shown in position for grinding the teeth of the same. Fig. 8 is an elevation of a spindle for supporting the grinding-tool for internal grinding and is adapted to be substituted for the spindle of the grinding-Wheel seen in Figs. 1, 3, et, and 6.

Similar reference characters indicate corresponding parts in all the views.

In Fig. 1 of the drawings I have shown a portion of a lathe having a cone-pulley 1, face-plate 2, centering-pin 3, and a tool-supporting head L1, these parts being necessary to the clear understanding of the operation of my invention, which consists, essentially, of a bracket 5, a flexible shaft 6, journaled in one end of the bracket, a rotary spindle 7, journaled in the other end of the bracket and carrying a rotary grinding-Wheel 8, and a yoke 9, mounted upon an upright standard 10.

The cone-pulley 1 may be of any desired form, size, or construction, provided With any number of belt-surfaces of unequal diameters and mounted upon a suitable shaft 11, said shaft being journaled in a bearing 12 and provided With the face-plate 2 and centeringpin 3, the centering-pin and face-plate being removable in the usual manner not necessary to herein illustrate or describe, as the pulley l, face-plate 2, and centering-pin 3 may be of any well-known construction and mounted in the usual manner. The tool-post 4 may also be of any desired form, size, or construction adapted to receive and support the various tools employed in metal-Working. As is Well known, these tool-posts are provided with a transverse slot for receiving the tool and a clamping bolt or screw 13 for securing the tool in position. The bracket 5, which supports the shaft and spindle 6 and 7, is detachably mounted in the slot of the tool-post and is. held in position by the clam ping-screw 13 in the manner of supportingany ordinary tool. This bracket usually consists of sections 14, 15, and 16, the section lebeing provided with a laterally -projecting arm 17, which is adapted to enter the slot in the toolpost 4 and is secured therein in the usual manner by the clamping-screw 13, and the sections 15 and 16 are adjustably mounted IOO upon the section 14, the section 15 being adjustable horizontally and at any desired angle, and the section 16 is adjustable vertically and horizontally and also at any desired angle. In the preferred form of my invention the section 14 consists of a single metal bar the opposite ends of which are disposed at an angle to each other other than a right angle, one end being provided with the arm 17,which enters the tool-post, and is also formed with sockets 1S and 19, the socket 1S being adapted to receive a clamping-screw 2O and the socket 19 being threaded for receiving a suitable clamping-screw 21, both of which clampingscrews are for special purposes hereinafter described. The opposite end of the section 14 is provided with a series of apertures 22, arranged to receive a suitable clam ping-screw 23, also for a purpose hereinafter mentioned. The section 15 of the bracket 5 is provided at one end with an elongated bearing 24, its other end being extended at substantially right angles with the bearing, and is provided with a lengthwise slot 25 for receiving the clamping-screw 20. Arlhe section 15 is arranged to be clamped by the screw 2O against the adjacent face of the section 14, this section 15 being adjustable along the section 14 for moving the bearing 24 toward and away from the arm 17 and is also capable of being rocked vertically upon the clamping-screw 20, being held in either of its adjusted positions by the said clamping-screw 2O and a suitable nut 26, engaging with the threaded end of thescrew and the opposite face of the section 14. The section 16 is held in position by the clamping-screw 23 and a suitable nut 27 and is provided with a vertical slot 28 and an elongated bearing 29 for receiving the spindle 7, the slot 28 serving to permit the bearing 29 to be adjusted vertically, and the clamping-screw 23 forms a pivot upon which the section 16 may be rocked and also serves to clamp the section 16 in its adjusted position upon the section 14. The bearing 24 is arranged to receive and support one section of the exible shaft 6, and in order to reduce the friction of said section of the shaft 6 in the bearing 24 I provide suitable roller-bearings 30, interposed between the shaft-section and the inner face of the bearing 24, these rollers being of substantially the same length as the bearing and, together with the bearing 24, are held from lateral or endwise movement by a collar 31 and the hub of a pulley 32, presently described, the collar 31 being secured to the shaft by a set-screw 33 or equivalent fastening means.

As previously stated, the opposite ends of the section 14 are disposed at an angle to each other, the bearing 29 being arranged at substantially right angles with the adjacent end of the section 14 and the bearing 24 being arranged at substantially right angles to the opposite end of the section 14, and it is thus evident that the axes of the shaft 6 and spindle 7 are arranged atan angle with each other,

the axis of the tool to be ground or sharpened such as the centering-pin 3. The spindle 7 is movable lengthwise in the bearing 2f) for moving the grinding-wheel along the tapering surface of the centering-pin or other revolving tapering tool, this lengthwise movement of the spindle being controlled by the operator by means of a suitable sleeve, as 34, which is loosely mounted on the end of the spindle 7, being held in position by suitable shoulders 35 and 36, provided on the end of the spindle 7, one of the shoulders, as 36, being a screw detachably engaged with the spindle for permitting the removal of the sleeve when desired.

Any desired means may be employed for rotating the spindle 7from the shaft 6; but I preferably provide the shaft 6 with the pulley 32, which is connected to a smaller pulley 37 upon the spindle 7 by means of a belt 3S, the intermediate portion of the said belt being passed over suitable idlers 39 and 40, mounted one above the other upon an upright standard or support 4l, the lower end of said standard being removably secured to the bracket or section 14 by any desired form of fastening means, as the bolt 21. These pulleys 32 and 37 and the idlers 39 and 40 are preferably grooved for receiving the belt 38 and permitting the spindle 7 or shaft 6 to be The 'ICO

moved to different positions relatively to each other without liability of displacing the belt from the pulleys or idlers. These idlers are preferably supported in a plane above the axes of the spindle 7 and the shaft 6 for permitting free access to the work; but it is evident that in some instances, particularly in parallel internalor external grinding, the axis of the spindle 7 may be arranged substantially parallel with the axis of the shaft 6, and in Figs. 6 and 7 I have shown a bracket 5',composed of sections 14', 15', and 16', said bracket having bearings 24 and 29', parallel with each other, the bearings 24 being mounted upon the section 15' and the bearing 29 being mounted upon the section 16'. Adjustably secured to the bracket 5 is an additional support 41', which is held in position by a clamping screw and nut 27' and is provided with an adjustable tool-rest 50, this rest being held in position by a suitable clamp 51.

The device seen in Figs. 6 and 7 is adapted for grinding or sharpening rotary cutters, such as milling-tools, and owing to the vfact that the shaft 6 and spindle '7 are adjustable toward and away from each other it is evident that any size of grinding-wheel may be em- IIO ployed, or a particular size of grinding-wheel may be employed for grinding or sharpening any size of milling-tool, the rest 50 being adjustable vertically for the purpose of engaging the tool of the cutter and holding the cutter from rotation during the process of grinding or sharpening the teeth. When this form of grinding attachment is employed, the shaft 6 is connected directly to the spindles 7 without the interposition of the idlers, and when it is desired to substitute the external grinding-wheel for an internal grinder the spindle is removed from its bearing 29', and another spindle, as 52, of greater length is inserted into the bearing 29, said spindle being held in position by a collar 53.

The means for rotating the shaft 6 preferably consists of a friction-wheel 43, which is movably supported upon one section of the shaft 6 and is adapted to be forced into engagement with one of the surfaces of the conepulley 1, this engagement of the frictionwheel 43 With the cone-pulley being manually controlled by a handpiece 44 upon the upper end of the floor-standard 10. As seen in the drawings, particularly in Fig. 2, the friction-wheel 43 is secured to a sleeve 45, which is feathered upon one section, as 46, of the iiexible shaft 6. The sleeve 45 is provided with bearing-faces 47, journaled in suitable bearings 4S upon the yoke 9, which is adjustable vertically upon the standard 10 and is held in its adjusted position by a suitable clamping-screw or equivalent device 49. The lower end of the standard 10 is preferably pointed and is arranged to engage the door at any desired position, and it is evident from the foregoing description that the operator may readily move the friction-wheel 43 into and out of engagement With the periphery of one of the cone-sections 1, whereupon revoluble motion is transmitted to the shaft (3 and thence to the spindle 7 by means of the belt 38. Itis also apparent that the speed or revolution of the shaft 6 may be varied by simply moving the friction-wheel 43 into engagement with one or the other of the cone-sections of the pulley 1, and in order to permit this adjustment of the friction-wheel 43 I provide a universal joint or connection 55 between the opposite sections of the shaft G, this universal connection also serving to permit the opposite ends of the flexible shaft to be adjusted vertically in different planes when desired.

In the operation of my invention when it is desired to grind tapering surfaces the device seen in Figs. 1 to 5, inclusive, is employed, the arm 17 of the bracket 5 being inserted in the slot in the tool-post and clamped in position by the screw 13. The standard is res'ted upon the ioor or other support, and the operator then moves the friction-wheel into engagement with one of the surfaces of the cone-pulley 1 by means of the handpiece 44 and then moves the grinding-wheel 8 along the tapering surface to the grinder by means of the handpiece or sleeve 34. Should the axis of the spindle 7 not be in proper position relative to the tapering surface to be ground, it is evident that the section 16 may be loosened and adjusted either by moving the same vertically or rocking it upon the clampingscrew 23, or the clamping-nut 26 may be loosened and the tool-post and section 14 moved toward or away from the axis of the centering-pin of the shaft 11, or, on the other hand, if it becomes necessary to change the position of the shaft 6 relatively to the tool-post itis simply necessary to loosen the clamping-nut 26, whereupon the section 15 may be moved along the section 14 until the shaft 6 is in the desired position.

The operation of my invention will now be readily understood upon reference to the foregoing description and the accompanying drawings, and it will be noted that the essential features of my invention-viz., the flexible shaft 6, the spindle 7, actuated thereby, the sectional bracket 5 for permitting the adjustment of the shaft or spindle relatively to each other, and the manually-operated means for controlling the movement of the frictionwheel 43 into and out of engagement with the peripheral surfaces of the cone-pulley 1 and also the longitudinal adjustment of the spindle 7 and the means for detachably securing the bracket 5 to the tool-post of a lathe-may all be varied in construction and arrangement without departing from the spirit of this invention. Therefore I do not limit myself to the precise construction and arrangement shown and described.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

1. An attachment for lathes comprising a support adjustably secured to the tool-post of the lathe, an4 arm adjustable vertically on the support, a revoluble grinding member journaled on the arm and means to rotate said member.

2. In combination with a revolving lathe member, a bracket adjustably secured to the tool-post and provided with a vertically-adjustable arm, a revoluble grinding member adjusted on the arm and means actuated by the former member and connected to rotate the grinding member.

3. In a grinding attachment for lathes, bracket-sections carried by the tool-post, one being adjustable lengthwise of the other, a revoluble grinding member carried byA one section and a driving member for the grinding member carried by the other section and receivingits power from one of the revolving parts of the lathe, said driving member being adjustable vertically forthe purpose set forth.

4. In a grinding attachment for lathes a vertically-adjustable arm carried by the toolpost, a revoluble grinding member journaled on the arm and having an independent endwise movement, and a driving member in fric- IOO Ito

tional engagement with one of the revoluble parts of the lathe, said driving member being adjustable lengthwise of and at an angle with its axis for the purpose specified.

5. The combination with a revolving part of alathe, of a grindingattachment comprisin ga support and a vertically-adj ustable arm, a revoluble grinding member journaled on the arm and a friction-disk adapted to enlgage the revolving part of the lathe, means for transmitting power from the disk to the grinding member, and manually-operated means for controlling the position of the disk relative to the revolving member.

6. An attachment for lathes comprising a frame adapted to be secured to the tool-post of a lathe, a vertically-adjustable arm on the frame, a spindle journaled in the frame and provided with a grinding member, a shaft journaled on the arm and connected to drive said spindle and a friction-disk connected to the shaft and adapted to engage one of the revoluble members of the lathe for the purpose set forth.

7. An attachment for lathes comprising a frame adapted to be secured to the tool-post of a lathe, and provided with vertical and horizontally-adj ustable arms, a spindle journaled in the vertical arm and provided with a grinding member, a shaft journaled on the horizontally-adjustable arm and connected to drive said spindle, and an oscillatory standard supporting a revoluble friction-disk, said disk being fiexibly connected to the shaft and adapted to be moved into and out of engagement with one of the revoluble parts of the lathe by the standard for the purpose set forth.

S. An attachment for lathes comprising a frame adapted to be secured to the tool-post ofa lathe, a sliding spindle journaled in the frame and provided with a grinding member, a shaft journaled on the frame and connected to drive said spindle, a sleeve loose on the spindle to slide it endwise, an oscillating Hoorstandard, a yoke adjustably mounted on the standard and a revoluble disk carried by the yoke and arranged to contact with one of the revolving parts of the lathe for the purpose set forth.

9. In a grinding attachment for lathes the combination with a revoluble grinding member carried by the tool-post of the lathe, a revoluble shaft connected to rotate the grinding member, a spindle connected to the shaft by a universal joint, a friction-disk secured to the spindle and adapted to engage one of the revolving members of the lathe and a handpiece loose on the spindle for controlling the position of the spindle.

l0. An attachment for lathes comprisinga frame adjustably mounted on the tool-post of the lathe, a revoluble spindle on the frame and provided with a grinding member, a handpiece loose on the spindle, a revoluble shaft mounted on the frame and connected to rotate the spindle, a second spindle connected to the shaft by a universal joint, said shaft and spindle being movable endwise and a friction-disk feathered on the second spindle to engage one of the revolving parts of the lathe.

ll. An attachment for lathes comprising a frame adjustably mounted on the tool-post of the lathe, a revoluble spindle on the frame and provided with a grinding member, and adjustable vertically independently of the frame,a revoluble shaft mounted on the frame and connected to rotate the spindle, a second spindle connected to the shaft by a universal joint, said. shaft and spindle being movable endwise and a friction-disk feathered on the second spindle to engage one of the revolving parts of the lathe, and means for movingthe spindle toward and away from the revoluble part of the lathe and for holding the same from endwise movement with its spindle.

l2. In a grinding attachment for lathes the combination with a frame adjustably mounted on the tool-post, a shaft and spindle journaled on the frame at an angle with each other and adjustable toward and away from each other without varying said angle, the spindle being actuated by the shaft and provided With a grinding member, a second spindle having a sleeve feathered thereon, either being movable lengthwise of the other, a universal joint connecting the shaft and second spindle, and a friction-disk adapted to contact with one of the revoluble parts of the lathe for the purpose pecified 13. In a grinding at achment for lathes the` ICOA IOS

IIO

sectional frame mounted on the tool-post of the lathe, the sections being adjustable one upon the other, one of the sections bearing a spindle movable endWise in its bearing and provided with a revoluble grinding-wheel and the other a driving-shaft connected thereto, said spindle having a hand-sleeve loose thereon, and means for rotating the shaft.

15. In a grinding attachment for lathes, a sectional frame mounted on the tool-post of the lathe, the sections being adjustable one u pon the other, one of the sections bearing a revoluble spindle having an endwise movement in its bearing and provided with a grinding-Wheel and the other a driving-shaft connected thereto, said grinding-wheel having its axis arranged at an angle with the shaft, and means for rotating the shaft.

16. In a grinding attachment for lathes, a sectional frame mounted on the tool-post of the lathe, the sections being adjustable one upon the other, one of the sections bearing a revoluble grinding-Wheel and the other a driving-shaft connected thereto, said grinding- Wheel being movable lengthwise of its axis, and having its axis arranged at an angle with the shaft and means for rotating the shaft.

17. In a grinding attachment for lathes, a sectional frame mounted on the tool-post of the lathe, the sections being adjustable one upon the other, one of the sections bearing a revoluble grinding-Wheel and the otheradriving-shaft connected thereto, said grinding- Wheel being movable lengthwise of its axis, and having its axis arranged atan angle with the shaft, a yoke having a sleeve journaled thereon, said sleeve having an annular friction-face, a spindle feathered in the sleeve and ,flexibly connected to the shaft, and a floor-standard adjustable on the yoke and having a handpiece for forcing the frictionsurface into Contact With a revolving member of the lathe, for the purpose described.

In Witness whereof l have hereunto set my hand on this 21st day of September, 1901.

ROSS M. RUSSELL. Witnesses:

Jnssn M. HAMMEKEN, HOWARD P. DENIsoN.

Images