Industrial Machinery Manuals Is Proud To Offer 1 Quality Bound Copy Of A: Cincinnati No. 2 Centerless Grinder Operation Manual This Manual Covers Models. and show actual applications of centerless grinding and also to supply a TWIN GRIPA MICRO-CENTRIC® and CINCINNATI MILACRON® are trademarks of. A further object of this invention is to provide a simplified centerless grinding by the infeed grinding method and the machine is provided with a single manual.
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The sleeve 60 is manually adjusted by the knurled wheel 66 attached to the upper end of the sleve 60, and the amount of adjustment is indicated by the micrometrically graduated dial 67 which is attached to the sleeve for rotation therewith.
In a centerless grinding machine having opposed grinding and regulating wheels one centerlsss which is supported for rotation about a rela- Ir ‘I I II Il ‘I tively fixed axis and the other of which is grindder for rotation about a movable axis, the combination of a work carrier movable between a work loading position and a work grinding position, a stop for determining the grinding position of the carrier, a manual control lever, motion transmission connections cincinbati said lever and said carrier, and wheel moving means whereby upon movement of the lever in one direction the work carrier will be swung to a grinding position and relative approach will be effected between the wheels, said motion transmitting connection between the lever and work carrier being yieldable whereby the lever may be moved an additional distance after the work carrier has been positioned to effect a subsequent additional movement of the grinding wheel to effect the grinding operation.
Since the amount of movement of the regulating wheel is rather limited it does not materially effect the belt drive so as to necessitate idler pulleys but if it was necessary to make allowances for this the unit 37 could be adjustably mounted mankal the floor of the machine housing upon which it is mounted. From Figure 3 it will be noted that the eccentric portion 64 of the shaft is integral with the remaining portion of the shaft and centerlees a manually operable handle 90 is attached to the end of the shaft to effect rotation thereof.
Thus, the position of the grinding wheel with respect to the regulating wheel is determined by the rotatable position of the eccentric 65 cibcinnati the adjustment of the extensible cengerless. Thus, during movement of the handle 90 in a counterclockwise direction the work carrier is moved from a loading position to a grinding position and the eccentric 64 simultaneously moves the grinding wheel toward the regulating wheel. It will be noted, however, that the opposed peripheries of the two wheels actually travel in opposite directions, the grinding wheel 12 rotating at a relatively high speed to effect stock removal while the regulating wheel rotates at a relatively slow speed to control the rate of rotation of a cylindrical work piece located in the grinding throat 16 between the wheels and indicated by the reference numeral This adjustment is effected by an adjusting screw 22 centeerless is threaded in the housing at 23 and held against axial movement by means of an annular flange 24 which partially fits in a groove 25 formed in the face of the guideway In a centerless grinding machine having a grinding wheel and a regulating mahual supported in opposed relation to form a grinding throat therebetween, the combination of a work carrier movable laterally to the axis of the grinding throat for work inserting and removing purposes, said work carrier having a work rest blade mounted thereon for movement therewith, stop means for limiting griinder of the carrier into the grinding throat to determine the position of the work rest blade with respect to the axis of the grinding throat, and means simultaneously movable with the carrier for adjusting one of said wheels relative to the other.
A fixed reference mark 68, as shown in Figure 1, cooperates with the dial to indicate grunder amount of adjustment effected.
Cincinnati Centerless Grinder Manuals
The wheel 12 constitutes a grinding wheel which rotates clockwise as indicated by the arrow 13 and the wheel 14 constitutes a regulating wheel which also rotates clockwise -as indicated by the arrow The end cincinnsti on the work piece serve to support the work during movement to grinding position until the regulating wheel is engaged, whereupon the regulating wheel lifts the work sufficiently to support the entire weight thereof without raising the work so far that the guides 78 cannot function to center the work piece with respect to the mqnual wheel and insure that the grrinder wheel engages the surface 80 without contacting the sides of the end spools and the work.
The spindle 32 for the regulating wheel 14 is suitably journaled in the housing and is provided on the end with a driving pulley 33 which is connected by one or more V-belts 34 as shown in Figure 2 to a power pulley In a centerless grinding machine having a grinding wheel and a regulating wheel adjustably mounted in opposed relation to form a grinding throat therebetween, the combination of oscillatable means for grinnder and withdrawing work laterally of the grinding throat, said means including a work rest manyal for absorbing grinding thrust on the work, and a control lever operatively connected for actuation of said means and adjustment of one of said wheels.
The end of the screw is provided with a square head 26 to which a suitable socket wrench may be applied for rotating the screw. What is claimed is: It will be obvious that in cases where the machine is mounted on a bench or table that the motor may be mounted on the underside of the table top and cincinnwti suitable opening provided through which the belts may run.
After the carrier engages the stop, the shaft 65 may be rotated through an additional angle to effect feeding of the grinding wheel. The regulating wheel 14 is made of sufficient width to also engage this surface with enough frictional pressure to rotate the work at a predetermined rate during the grinding operation.
Click for automatic bibliography generation. The lateral wall portions 76 and 77, as shown in Figure 3, carry work receiving guides or supports 78 which are adapted to receive and position spoollike work pieces 79 so that the work may be placed thereon when the carrier is swung outward by cincinati operator upon gginder rotation of the shaft Referring now to the drawings and more particularly to Figure 1, the reference numeral 10 indicates the frame or housing of the machine proper while the reference numeral 11 indicates, in general, one form of pedestal or support upon which the machine may be mounted or supported.
In a centerless grinding machine having opposed grinding and regulating wheels, the combination of means for adjustably supporting one of said wheels for infeeding movement relative to the other wheel, a work carrier movable from a loading position to a grinding position between said wheels, a rotatable shaft for actuating said carrier and a link connection between said shaft and said adjustable wheel for effecting simultaneous movement of the grinding wheel and the carrier.
This is accomplished by providing a depending lug 69 from the shaft 41 for engagement by a spring pressed plunger 70 mounted in a bore 71 provided in the wall The periphery of the flange 24 is provided with micrometric graduations 27 and a pointer 28 fixed to the support cooperates with these graduations to indicate the amount of adjustment effeced by rotation of the adjusing screw.
This machine, being of the centerless type, is provided with a pair of opposed abrasive wheels and as more particularly shown in Figure 2. The wall 18 is provided with a dovetailed guideway 20 as more particularly shown in Figure 3 upon which a spindle housing 21 for the regulating wheel 14 is mounted for adjustment.
Cincinnati No. 2 Centerless Grinder Operation Manual
It should now be apparent that the work carrier is normally held in an outward position or at its work loading station with the grinding wheel elevated and that the normal grinding cycle is effected by moving the lever in a counterclockwise direction to move the work and work rest blade into the grinding throat and then effecting a downward movement of the grinding wheel to effect the grinding operation.
In a centerless grinding machine having a grinding wheel and a regulating wheel, said grinding wheel being supported above the regulating wheel, a swinging bracket for supporting the grinding wheel in a manner to normally cause the wheel to move by gravity toward the regulating wheel and resilient counterbalancing means effective on said support for holding the grinding wheel normally in a non-grinding position.
This is accomplished by forcibly causing retraction of the plunger The grinding wheel In a centerless grinding machine having a grinding wheel and a regulating wheel supported for rotation and in opposition to one another to fcrm a grinding throat therebetween, the combination of means for inserting and withdrawing work with respect to the grinding throat including a work rest blade, and a backstop plate for supporting the work during movement into the grinding throat until picked up by the regulating wheel, said work rest blade being positioned to effect removal of the work during withdrawal of the carrier.
In a centerless grinding machine having a grinding wheel and cincinnxti regulating wheel supported for rotation in opposition to one another to form a grinding throat therebetween, one of said wheels being supported for relative movement toward and from the other wheel, the combination of means for inserting and withdrawing work laterally of centterless grinding throat and a manually operable lever for effecting insertion of the work centerleds relative approach between centsrless wheels sequentially.
The spring has sufficient tension to normally eliminate any lost motion between the carrier and shaft whereby during rotation of the shaft through an arc necessary to move the carrier from a grinding position to its work loading position the two move as a unit.
A further object of this invention is to provide a simplified centerless grinding machine for infeed grinding operations in which the entire cycle of work loading, grinding and work removal may be effected by a single manual control lever.
This pulley is on the output shaft 36 of a reduction speed unit, indicated generally by the reference numeral 37 and driven by a prime mover such as the motor