GB2007562A - A Device for Guiding the Mandrel of a Machine for Piercing Hot Ingots - Google Patents
A Device for Guiding the Mandrel of a Machine for Piercing Hot IngotsInfo
- Publication number
- GB2007562A GB2007562A GB7842590A GB7842590A GB2007562A GB 2007562 A GB2007562 A GB 2007562A GB 7842590 A GB7842590 A GB 7842590A GB 7842590 A GB7842590 A GB 7842590A GB 2007562 A GB2007562 A GB 2007562A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine
- axis
- mandrel
- piercing
- outlet side
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
- B21B25/02—Guides, supports, or abutments for mandrels, e.g. carriages or steadiers; Adjusting devices for mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Turning (AREA)
- Forging (AREA)
- Drilling And Boring (AREA)
Abstract
A device for guiding the mandrel of a machine for piercing hot ingots (b), the mandrel extending along the piercing axis (A) on the outlet side of the piercing machine, the device being characterised in that it comprises: at least two similar horizontal guides (7, 8) rigidly secured at the sides of the machine in symmetrical positions relative to the axis (A) and the outlet side of the machine, each guide (7, 8) comprising a straight portion (7a, 107a) starting from the outlet side of the machine and parallel to the axis (A), and a curved portion (7b, 107b) diverging from the axis (A), a first and a second group of similar rigid members (11, 111) slidable in corresponding guides (7, 8) and directed towards the axis (A), the members (11, 111) in each group being interconnected by pivots (15, 16-115, 116), each member (11, 111) having a free end (11c, 111c) facing the axis (A), and having a substantially semicylindrical saddle- like cross-section having a diameter equal to the outer diameter of the mandrel (3) and adapted to engage therewith, and means (19, 119) for positioning each group of rigid members (11, 111) along the rectilinear portion (7a, 107a) of the corresponding guide (7, 8). <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2940377A IT1088362B (en) | 1977-11-07 | 1977-11-07 | DEVICE FOR GUIDING THE TOE-HOLDER BAR OF A HOT-TONGUE DRILLING MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2007562A true GB2007562A (en) | 1979-05-23 |
GB2007562B GB2007562B (en) | 1982-05-06 |
Family
ID=11226913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7842590A Expired GB2007562B (en) | 1977-11-07 | 1978-10-31 | Device for guiding the chuck of a machine for drilling hotingots |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5488862A (en) |
DE (1) | DE2847379A1 (en) |
ES (1) | ES474841A1 (en) |
FR (1) | FR2407760A1 (en) |
GB (1) | GB2007562B (en) |
IT (1) | IT1088362B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3129712A1 (en) * | 1981-07-23 | 1983-02-10 | Mannesmann AG, 4000 Düsseldorf | Mandrel bar supports for cold pilger machines |
EP0197015A1 (en) * | 1985-03-22 | 1986-10-08 | Santrade Ltd. | Floating cylindrical mandrel and method for producing tubing |
-
1977
- 1977-11-07 IT IT2940377A patent/IT1088362B/en active
-
1978
- 1978-10-31 DE DE19782847379 patent/DE2847379A1/en not_active Withdrawn
- 1978-10-31 GB GB7842590A patent/GB2007562B/en not_active Expired
- 1978-11-06 JP JP13662278A patent/JPS5488862A/en active Granted
- 1978-11-06 ES ES474841A patent/ES474841A1/en not_active Expired
- 1978-11-06 FR FR7831341A patent/FR2407760A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3129712A1 (en) * | 1981-07-23 | 1983-02-10 | Mannesmann AG, 4000 Düsseldorf | Mandrel bar supports for cold pilger machines |
EP0197015A1 (en) * | 1985-03-22 | 1986-10-08 | Santrade Ltd. | Floating cylindrical mandrel and method for producing tubing |
Also Published As
Publication number | Publication date |
---|---|
ES474841A1 (en) | 1979-04-16 |
JPS5488862A (en) | 1979-07-14 |
FR2407760B3 (en) | 1981-09-11 |
IT1088362B (en) | 1985-06-10 |
JPS6120366B2 (en) | 1986-05-22 |
DE2847379A1 (en) | 1979-05-10 |
FR2407760A1 (en) | 1979-06-01 |
GB2007562B (en) | 1982-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |