GB841785A - Screw-thread rolling head - Google Patents
Screw-thread rolling headInfo
- Publication number
- GB841785A GB841785A GB3898557A GB3898557A GB841785A GB 841785 A GB841785 A GB 841785A GB 3898557 A GB3898557 A GB 3898557A GB 3898557 A GB3898557 A GB 3898557A GB 841785 A GB841785 A GB 841785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- plate
- members
- head
- axially
- 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
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
- B21H3/042—Thread-rolling heads
- B21H3/046—Thread-rolling heads working radially
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Branching, Merging, And Special Transfer Between Conveyors (AREA)
Abstract
841,785. Rolling screw-threads. HERBERT Ltd., A. Nov. 28, 1958 (Dec. 16, 1957], No. 38985/57. Class 83 (4). A screw-thread rolling head comprises inclined ridged rollers 20, with each roller j ournalled in a member 38 slidable in a composite portion 27, 34 along a tangent to a common circle about the axis of the head, and a further portion 21 rotatable with the composite portion but relative to which the composite portion is movable axially between two positions, the portion 21 carrying means coacting with the members 38 so that in one position of the composite portion the rollers are urged into engagement with the work against biasing means which, when the two portions 21 and 27, 34 are moved relatively and axially to the second position by interaction of the work on the rollers, move the members 38 to disengage the rollers from the workpiece. The roller-carrying members 38 are mounted between an assembly which comprises a front plate 34 and an intermediate plate 27 and are slidable along guide surfaces 36a and 37a. The intermediate plate 27 and the back plate 21 are both splined to a hollow shank 23 of the head for rotation together. A camplate 49 fixed by screws 25 to the back-plate 21 is adjustable by screws 57 engaging bosses 51 of the cam-plate to accommodate varying diameters of workpiece in the head. On completion of a length of thread the assembly 34, 27 is pulled away axially from the back-plate 21, against springs 30, Fig. 2, not shown, by the action of the thread on the rollers until followers 45 depending from the members 38 rise sufficiently for projections 56 on the cam 49 to engage in the steps 48 of the followers. At this point a spring-biased ring 26 having slots 52 engaging the steps 48 move the followers 45 to the left from the position of Fig. 7 to the position of Fig. 6 so that the roller-carrying members 38 move tangentially to disengage the rollers from the work. The rollers are re-set in the operative position by manual rotation of the ring 26 against the spring bias so that springs may return the assembly axially to abut the ring 26, as shown in Fig. 7. The set-up of the rollerhead is indicated on a scale 58 on the plate 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3898557A GB841785A (en) | 1957-12-16 | 1957-12-16 | Screw-thread rolling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3898557A GB841785A (en) | 1957-12-16 | 1957-12-16 | Screw-thread rolling head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB841785A true GB841785A (en) | 1960-07-20 |
Family
ID=10406913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3898557A Expired GB841785A (en) | 1957-12-16 | 1957-12-16 | Screw-thread rolling head |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB841785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150165512A1 (en) * | 2013-12-17 | 2015-06-18 | Lmt Fette Werkzeugtechnik Gmbh & Co. Kg | Thread rolling head |
| CN116532911A (en) * | 2023-07-06 | 2023-08-04 | 太原理工大学 | Rolling machining device with variable rolling depth |
-
1957
- 1957-12-16 GB GB3898557A patent/GB841785A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150165512A1 (en) * | 2013-12-17 | 2015-06-18 | Lmt Fette Werkzeugtechnik Gmbh & Co. Kg | Thread rolling head |
| US9968986B2 (en) * | 2013-12-17 | 2018-05-15 | Lmt Fette Werkzeugtechnik Gmbh & Co. Kg | Thread rolling head |
| CN116532911A (en) * | 2023-07-06 | 2023-08-04 | 太原理工大学 | Rolling machining device with variable rolling depth |
| CN116532911B (en) * | 2023-07-06 | 2023-09-08 | 太原理工大学 | Rolling machining device with variable rolling depth |
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