GB897591A - Method and apparatus for cold forming a disk - Google Patents
Method and apparatus for cold forming a diskInfo
- Publication number
- GB897591A GB897591A GB1517/60A GB151760A GB897591A GB 897591 A GB897591 A GB 897591A GB 1517/60 A GB1517/60 A GB 1517/60A GB 151760 A GB151760 A GB 151760A GB 897591 A GB897591 A GB 897591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolls
- roll
- platforms
- speed
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Control Of Metal Rolling (AREA)
Abstract
897,591. Rolling discs. KELSEY-HAYES CO. Jan. 15, 1960 [Jan. 16, 1959], No. 1517/60. Class 83 (4). In a method of radially-tapering a disc, a blank of uniform thickness is rolled simultaneously by two pairs of rolls while a radial component of force acts axially of the rolls, the rolls are withdrawn radially outwards at equal rates, the distance between the rolls of each pair is varied and either the rolls are withdrawn at a constant rate while their speed of rotation is varied or the speed is maintained constant while the rate of withdrawal is varied. One or more blanks are fed into a mill by a loading device 176, Fig. 1 (not shown), to be located on a resilient spindle 114 and held in position by a fluidoperated hold-down 126. Prior to each rolling pass the spindle 114 is accelerated so that the work attains the speed of the rolls. The roll-pass is varied by wedges 24b actuated by a motor through a gear 97b, and a threaded shaft 93b. The final pass is indicated by dials 104a and 104b. The initial pass is set up by another motor which through gearing rotates splined gears 92b so adjusting the position of stop-nuts 95b on the wedge-rods to permit movement of the wedges to increase the roll-gap for the initial pass. An indicator 109 shows the reduction to be made on the second pass. Each pair of rolls 71a, 72a and 71b, 72b are mounted in chocks such as the chocks 42b, 43b which are pivotally mounted on a stand 59b mounted on a movable platform 73b. The platforms 73a, 73b for the respective pairs of rolls are interconnected for equal movement by a rod 81 and the platform 73a is moved outwardly from the roll-stand by a double-acting cylinder 77 attached to a sub-frame 75a while the platform 73b is also moved outwardly from the stand but indirectly through a pair of racks 82 and 85, both of which engage a pinion 84, the rack 82 being attached to the rod 81 while the rack 85 is attached to the platform 73b. The rolls are driven at constant or at variable speed by motors 62a, 62b, through gears 70a, 70b and shafting accommodated in the stands 59a and 59b. When the rolls operate at variable speed, that is, when the rolls are retracted radially at a constant rate, the speed of the motors is controlled by a cam 152, Fig. 9, attached to the moving platform 73b. The cam moves a plunger 154 in a saturable-core reactor 158 to vary the speed of the motors. The radial point at which the rolls engage and disengage from the work is controlled by adjustable cam blocks 146a and 146c carried by a support 143 attached to the movable platform 73b. During movement of the platforms towards and away from the roll stand the cam blocks 146a and 146c operate limit switches 142a and 142c respectively which according to whether the rolling pass is about to commence or to end operate cylinders 33b, 34b to insert or withdraw wedges such as 31b, 32b, causing the rolls of each pair to move together or apart. The radius at which the rolls engage or disengage from the blank or blanks is determined by the setting of the camblocks. When it is required that the rolls operate at constant speed the platforms 73a and 73b are withdrawn at a variable rate decreasing with increase of radius, the variation being controlled by valves 159a, 159b, 159c, operated by a cam attached to the platform 73a. The degree of taper imparted to the work is controlled by exchangeable cams 37b, 38b, and shims 41 which are fixed relative to the rollhousing and on which following rollers 54b and 55b move during the outward movement of the rolls on the platforms 73b. The roll-chocks may be mounted centrally in the roll-housing windows 15, Fig. 4, but by suitable positioning of shims 46 the rolls may be adjusted to positions in which each pair is on an opposite side of the central longitudinal plane through the rollstand. This roll-positioning induces a slight axial force on the rolls which may assist or oppose the withdrawing action of the platforms 73a and 73b. During roll-changing the chocks are supported on slides 87a and 87b and the platforms 73a and 73b retract fully to tilt safety platforms 86a and 86b into a vertical position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US787173A US3090264A (en) | 1959-01-16 | 1959-01-16 | Apparatus for rolling disks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB897591A true GB897591A (en) | 1962-05-30 |
Family
ID=25140631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1517/60A Expired GB897591A (en) | 1959-01-16 | 1960-01-15 | Method and apparatus for cold forming a disk |
Country Status (3)
Country | Link |
---|---|
US (1) | US3090264A (en) |
FR (1) | FR1247049A (en) |
GB (1) | GB897591A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1279800B (en) * | 1963-01-17 | 1968-10-10 | Hermann Pohl Fa | Cableway |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1241639A (en) * | 1969-06-03 | 1971-08-04 | Davy & United Eng Co Ltd | A pit cover |
JP5591918B2 (en) * | 2009-05-13 | 2014-09-17 | ボブスト ソシエテ アノニム | Unnecessary partial discharge unit for easy tool adjustment in packaging production machines |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1004771A (en) * | 1911-01-21 | 1911-10-03 | Charles J Gibbons | Rolling-mill. |
US1430989A (en) * | 1919-11-18 | 1922-10-03 | Charles L Heisler | Disk-forming machine |
US1534860A (en) * | 1922-05-26 | 1925-04-21 | Martin Arthur | Mill for rolling tapered disks |
US2280783A (en) * | 1938-12-14 | 1942-04-28 | Edgewater Steel Corp | Rolling internally flanged annuli |
US2338161A (en) * | 1942-03-28 | 1944-01-04 | Carnegie Illinois Steel Corp | Method of manufacturing sheave wheels |
US2588651A (en) * | 1945-02-21 | 1952-03-11 | Emil A Nelson | Machine for rolling tapered disks |
US2647422A (en) * | 1948-07-30 | 1953-08-04 | Motor Wheel Corp | Machine for tapering sheet metal blanks |
GB776227A (en) * | 1954-09-01 | 1957-06-05 | Gen Electric | Improvements relating to disc rolling machines |
US2932223A (en) * | 1954-10-06 | 1960-04-12 | Gen Electric | Control for wheel rolling machine |
US2894422A (en) * | 1954-11-22 | 1959-07-14 | Charles F Hautau | Rolling mill |
US2775152A (en) * | 1955-07-06 | 1956-12-25 | Mckay Machine Co | Apparatus for tapering the ends of spring leaves and the like |
-
1959
- 1959-01-16 US US787173A patent/US3090264A/en not_active Expired - Lifetime
-
1960
- 1960-01-15 FR FR815801A patent/FR1247049A/en not_active Expired
- 1960-01-15 GB GB1517/60A patent/GB897591A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1279800B (en) * | 1963-01-17 | 1968-10-10 | Hermann Pohl Fa | Cableway |
Also Published As
Publication number | Publication date |
---|---|
FR1247049A (en) | 1960-11-25 |
US3090264A (en) | 1963-05-21 |
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