US2942504A - Mill for rolling disks - Google Patents

Description

June 28, 1960 F. P. SHARPE MILL FOR ROLLING nzsxs Filed Jan. 30, 1956 3 Sheets-Sheet 1 INVENTOR. FREDERICK R SHARPE,

S m D mm m 5R m RF L L I M 0. 6 9 1 8 2 e n u J Filed Jan. 30, 1956 5 Sheets-Sheet 2 INVEN TOR. FREDERICK P. SHARPE.

June 28, 1960 F. P. SHARPE 2,942,504

MILL FOR ROLLING DISKS Filed Jan. 30, 1956 3 Sheets-Sheet 3 w b A F 3 INVENTOR.

FREDERICK P. SHARPE,

i d w tent MILL FOR ROLLING DISKS Frederick P. Sharpe, Dearborn, Mich., assign'or to Kelsey- Hayes Company, a corporation of Delaware Filed Jan. 30, 1956, Ser. No. 562,061 1 Claim. (Cl. 80 -16 The invention relates to rolling mills and refers more particularly to mills for rolling work of the disk type.

The invention has for one of its objects to provide an improved rolling mill constructed to operate in an eflicient and economical manner.

The invention has for another object to provide an improved rolling mill having a carriage movable toward and away from the work, heads angularly movably supported on the carriage, rolls on the heads engageable with opposite sides of the work, and means engageable with the heads at the sides of the head supports opposite the rolls for moving the rolls toward each other and into engagement with the work during the movement of the carriage away from the work.

The invention has for a further object to provide an improved rolling mill having carriages movable toward and away from each. other and the Work and carrying rolls engageable with opposite sides of the work, a hydraulic cylinder for moving both carriages toward and away from the work, and a. pinion. and rack device connected. to both carriages for compelling simultaneous equal movement thereof upon operation of the hydraulic cylinder.

With these and other objects in view, the invention resides in the novel features of construction and combinations of parts as more fully hereinafter set forth.

In the drawings:

Figure 1 a plan view oi the invention; I

Figures 2 and 3 are cross-sections on the lines 2-2, an'd13-3, respectively, of Figu'rc'l;

Figure 4 is a view similar toa portion of Figure 2 showing parts of the rollingmill in a difierent position.

The rolling mill comprises the base 1 resting on the flooring, the two carriages 2 movable toward and'away from each other and the work, and the pairs of upper and lower heads 3 and 4 respectively movably mounted on the carriages and carrying the upper and lower rolls 5 and 6 respectively.

The carriages 2 are slidably mounted upon the parallel rods 7 which extend longitudinally of the base 1 and are supported thereby. Each carriage has the upright side walls 8 and the integral bottom wall 9. The side walls are formed at their lower ends with the bosses 10 encircling and slidable on the rods 7. An upper head 3 and a lower head 4 are located between and are angularly movably supported on the upright side wall-s 8 of each carriage by the parallel pivot shafts 11 and 12 respectively secured to the upper and lower heads and j-ournaled in the side walls. The upper and lower rolls 5 and 6 are located at the inner ends of the heads and are fixedly mounted on the drive shafts 13 and 14 respectively which are journaied in the upper and lower heads with their axes in the same vertical plane.

The upper and lower rolls are respectively engageable with the upper and lower sides of the work which is mounted on the work support 15 rotatable about a vertical axis. The work in the present instance comprises a rollingmill embodying disk blanks of uniform thickness in face to face contact.

. gearing 21 which, in turn, is driven by the electric motor 22, the reduction gearing and motor being mounted on an end of the base 1.

For the purpose of positively swinging the upper and lower heads 3 and 4 to move the upper and lower rolls 5 and 6 toward each other during the movement of the carriages 2 away from each other and the work to thereby taper the work, I have rovided the cam devices 23 and the rollers 24 engageable by the cam devices. Each cam device comprises the upper and lowercams 25 and 26 and the slide 27 on whichthe cams are mounted. There are two cam devices 23: for each pair of upper and lower heads and their slides are longitudinally slidab'ly mounted on and guided by the uprights 28 carried by the base I. There are also two rollers 24 mounted on each of the upper and lower heads and these rollers are journaled on the brackets 29 fixedly secured to the outer ends of each. of the upper and lower heads. To variably control the operation of the upper and. lower rolls 5 and6, the cam devices 23 are. all adjustable longitudinally at the same time by the fiuid pressure actuated' cylinders 30', there being one cylinder for each of the slides 27. The cylinders are. standard or conventional and connected to the same source of fluid under" I pressure and are of the three-position type. Other fluid pressure actuated cylinders' 31, connected to a suitable source of fluid under. pressure, serve to lock the cam devices in their positions of adjustment. are of the double; acting type and operate the locking pins 32' each of which is engageable' in any one of the three openings 33 in eac'hof the cam slides 27.

To move the carriages 2 away from the work and each other and toward the work and each other, I have" provided the single fluid pressure actuated cylinder 34 and the two pistons 35. The cylinder is hydraulically operated and is located in a pit in the flooring and is secured by. the yoke 36 to the underside of the base 1.

The twopistons which are s'lidable" in the. cylinder have.

their. rods 37 connected to the carriagesz by means of carriages and the base. This device comprises the pinion 39 journaled in the bearings 40 carried by the base 1 and the racks 41 and 42 meshing with the upper and lower portions of the pinion and connected to the abutments 43 depending from the bottom walls 9.

To enable ready removal of the work after it has been rolled and ready insertion of other Work to be rolled, and also to prevent contact of the upper and lower rolls 5 and 6 of each pair of rolls during the inward movement of these rolls to operative position, the upper and lower rolls of each pair of rolls are adapted to be respectively raised and lowered and thereby separated. This separating movement is accomplished when the cam devices 23 have been adjusted to their outermost positions clearing the rollers 24 when the carriages 2 carrying the rollers 24 are in their outermost positions, so that the heads 3 and 4 may be swung about their pivot shafts 11 and 12. As shown, the fluid pressure actuated cylinders 44 are provided for swinging the heads 3 and 4 by means of the racks 45 connected to the V tively. There is one cylinder 44 for each pair of heads 7 These cylinders 3 and this cylinder is mounted on a side wall 8 of the carriage 2 associated with the pair of heads.

In operation, assuming the parts to be in the position shown in Figure 4 with the cam devices 23 and the rollers 24 in their outermost positions and the rollers clearing the cam devices and also with the upper and lower rolls and 6 separated and being rotated, work to be rolled may be readily inserted into place on the work support 15. Fluid under pressure may then be admitted to the outer ends of the cylinder 34 to return the carriages 2 and the rolls 5 and 6 to their innermost positions after whichfluid under pressure is admitted to the inner ends of the cylinders 44 to return the rolls 5 and 6 to their operative position in engagement with the work by means of the racks 45 and the gear segments 46 and 47. Then fluid under pressure is admitted to the outer ends of the cylinders 30 to move the cam devices 23 inwmdly to their first position of adjustment at which time the rollers 24 engage the inner ends of the cam surfaces of the cams 25. The cam devices are locked in this position by thelocking pins 32. The parts at this time are in a position with the upper rolls 5 and the lower rolls 6 in contact with or closely adjacent to the work as shown in Figure 2. Fluid under pressure is then admitted to the cylinder 34 between the pistons 35 to force the pistons outwardly and away from each other and thereby move the carriages 2 and, consequently, the heads 3 and 4 outwardly. As the heads move outwardly, their rollers 24 move over the cam surfaces of the cams 25 and compel the upper and lower rolls 5 and 6 to move toward each other thereby tapering the work radially outwardly. After this step has been completed, the carriages 2 are returned to their innermost positions and the cam devices 23 are moved inwardly to their second position of adjustment so that during the succeeding rolling step the work will be additionally thinned during the tapering. After the second rolling step and while the carriages 2 are in their outermost positions, the cam devices 23 are moved outwardly to their third or outermost position of adjustment shown in Figure 4 to provide for ready unloading and loading prior to starting another cycle.

What I claim as my invention is:

.A rolling mill comprising an upright work support for supporting work for rotation about a vertical axis, supporting structure, carriages mounted on said supporting structure at diametrically opposite sides of said work support for horizontal movement toward and away from said work support along paths in a plane extending radially relative to said work support, means for moving said carriages toward and away from said work support,

rack and pinion means mechanically interconnecting said carriages to compel simultaneous equal movement thereof, a pair of heads on each carriage arranged one above the other and with the inner ends of said heads adjacent said work support and the outer ends thereof remote therefrom, rolls on the inner ends of the heads of each pair opposed to one another, said rolls being spaced equal distances from said work support in all positions of said carriages and disposed with their axes generally in the plane of movement of said carriages, means pivotally mounting said heads on said carriages at points intermediate the ends of said heads for vertical angular movement of the heads of each pair in directions to move the rolls thereon toward each other into engagement with the upper and lower surfaces of work on said work support at diametrically opposite points equally spaced from the axis of rotation of the work, cam followers on the outer ends of said heads spaced from the pivotal mounting means for said heads a greater distance than said rolls are spaced from said pivotal mounting means, said cam followers and rolls of each head being on opposite sides of said pivotal mounting means, cams engageable with said respective cam followers on that side of said followers for forcing said heads about their pivots toward each other into the work in response to movement of said carriages away from said work support, and means for mounting said cams on said supporting structure in selected positions of adjustment during movement of said carriages.

References Cited in the file of this patent UNITED STATES PATENTS 377,224 Bagaley Jan. 31, 1888 1,412,431 Waite et a1. Apr. 11, 1922 1,430,989 Heisler Oct. 3, 1922 1,707,006 Hanna Mar. 26, 1929 2,023,656 Wilkins Dec. 10, 1935 2,085,729 Coe July 6, 1937 2,294,685 Nelson Sept. 1, 1942 2,513,819 Saunders July 4, 1950 2,522,315 Staat Sept. 12, 1950 2,588,651 Nelson Mar. 11, 1952 2,647,422 Horn Aug. 4, 1953 2,701,976 Krause Feb. 15, 1955 2,763,168 Kendall Sept. 18, 1956 FOREIGN PATENTS 1,029 Great Britain Mar. 9, 1880 3,163 Great Britain Feb. 10, 1903 736,896 1955 Great Britain Sept. 14,

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