EP3487643A1 - Vorrichtung zur vorbereitung eines rohrendes zum gleitziehen - Google Patents
Vorrichtung zur vorbereitung eines rohrendes zum gleitziehenInfo
- Publication number
- EP3487643A1 EP3487643A1 EP17751274.6A EP17751274A EP3487643A1 EP 3487643 A1 EP3487643 A1 EP 3487643A1 EP 17751274 A EP17751274 A EP 17751274A EP 3487643 A1 EP3487643 A1 EP 3487643A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mandrel
- pipe end
- indentation
- tube
- pressing member
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
- B21C1/32—Feeding or discharging the material or mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
- B21C3/16—Mandrels; Mounting or adjusting same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C5/00—Pointing; Push-pointing
- B21C5/003—Pointing; Push-pointing of hollow material, e.g. tube
Definitions
- the invention relates to a device for preparing a pipe end for sliding slide according to the preamble of claim 1 and a method for preparing a pipe end for Gleit delight.
- a device according to the invention preferably but not necessarily relates to tubes of a relatively soft metal such as copper.
- the pipe is formed reducing the wall thickness but maintaining or forming a defined inside diameter.
- the floating mandrel Due to the automated widening by means of the expanding mandrel, the floating mandrel can subsequently be easily and safely inserted into the pipe end.
- the device comprises a feed member for introducing the floating mandrel into the pipe end and / or a pressing member for attaching at least one indentation for holding the floating mandrel,
- the end of the pipe can be widened automatically by means of the conical widening mandrel before the feeder element introduces the floating mandrel into the pipe end.
- An expanding mandrel can easily be a mandrel tapering at a suitable angle.
- An automated process within the meaning of the invention is preferably understood as meaning that no manual interventions take place at the pipe end between the steps of the automated process.
- a pressing member is preferably understood to be a pair of pliers or a plurality of pliers, by means of which a local forming force is exerted to form radially directed indentations.
- the dents narrow the tube cross-section locally, so that they limit a free movement of the sliding mandrel, in particular until the beginning of a drawing process.
- the forces occurring by means of a puller and a drawing die are then so large that the floating mandrel is pushed over a respective indentation away.
- the releasable holder for centered holding the pipe end may be formed differently in the context of the invention.
- a first possibility may be a separate device to the pressing member.
- Such a holder may be arranged in particular spaced from the pressing member.
- the holder and The pressing member may preferably be relatively movable. Particularly preferably, the pressing member can be moved towards the held pipe end, or the tube end received in the holder can be fed to the pressing member.
- the holder may be formed with the pressing member as an integral unit.
- at least one press stud of the press member may be formed, for example, as one of a plurality of supports for holding the pipe end.
- the press pin can be present as a relative to the rest of the holder separately movable element. This makes it possible to first obtain a deformation-free mounting of the pipe end in order to subsequently introduce one (or more) indentations by actuating the at least one press pin.
- the press pin can be provided in a particularly simple construction but also as a solid projection in the region of a correspondingly strong designed, for example, pliers-like closable bracket. In such a solution, the steps of holding and inserting a dent are carried out simultaneously.
- the expanding mandrel has an injector for introducing draw oil into the pipe.
- the injector may in particular be designed as a separately movable line in a central bore of the expanding mandrel.
- the pressing member can introduce a first, positioned in front of the mandrel indentation and a second, positioned behind the mandrel indentation separately from each other.
- the tube can be held in a form-fitting manner by means of the first indentation in a tube longitudinal direction when the expanding mandrel expands the tube end.
- the pressing member has at least two spaced apart in the tube longitudinal direction of the press pin, which are independently pressed against the pipe end.
- alternative solutions can also be provided a movable relative to the tube press member, so that the first and the second indentation can be introduced by means of the same press pin.
- the device comprises a tipping press, by means of which the pipe end is sharpened after the introduction of the floating mandrel for a puller.
- a tipping press by means of which the pipe end is sharpened after the introduction of the floating mandrel for a puller.
- the sharpening is also automated, so that from the centered holders of the tube on the expansion and introduction of the floating mandrel to the tips of the pipe end no manual manipulations must be made on the pipe.
- the device according to the invention also advantageously allows the pipe end to have a non-rectangular, in particular undefined, cut edge, the expanding mandrel engaging in the pipe end without correction of the cut edge.
- tubes may have angles of cut edges of more than 30 ° with respect to a tube longitudinal axis and yet be prepared reliably and automatically with the device according to the invention.
- the object of the invention is also achieved by a method for preparing a pipe end for slide pulling, comprising the steps: a. centered mounting of the pipe end in a holder;
- steps c. and d. automated and shared without manual interaction.
- steps b., C. and d. automated and shared without manual interaction.
- the method further comprises the step: e. Introducing a second indentation by means of the pressing member, wherein the floating mandrel is trapped between the two indentations.
- the mandrel is fixed in both directions positively and particularly secure in the pipe end.
- the method is particularly preferably carried out by means of a device according to the invention.
- Fig. 1 shows a lateral plan view of a partial view of a device according to the invention.
- Fig. 2 shows a plan view of an enlarged detail of the device of Fig. 1 after a first processing step of a tube.
- Fig. 3 shows the detail enlargement of the device of Fig. 2 during a second processing step of the tube.
- Fig. 4 shows the detail enlargement of the device of Fig. 2 prior to insertion of a floating mandrel into the tube.
- Fig. 5 shows the detail enlargement of Fig. 2 after insertion of the mandrel.
- Fig. 6 shows the detail enlargement of the device of Fig. 2 after a further processing step of the tube.
- Fig. 7 shows a further partial view of the device of Fig. 1 after a point of the tube.
- the device shown in FIG. 1 comprises a frame 1, on which a plurality of movably movable elements are accommodated.
- a releasable holder 2 for receiving a tube 3 is arranged on the frame 1, a releasable holder 2 for receiving a tube 3 is arranged.
- a clamp 2 a acts with little damage on a circumference of the tube 3.
- the tube 3 is preferably made of a soft metal, for example copper. It has an end with a largely undefined cut edge in angle and orientation. The majority of the tube 3 is received in a drum (not shown), by means of which it is brought to a drawing station after the preparation of a pipe end 4.
- the device according to the invention may be designed to be movable in total and be moved to prepare for a respective tube.
- the pressing member 5 After receiving the tube end 4 in the holder 2 a pressing member 5 moves over the tube end 4.
- the pressing member 5 comprises two spaced apart arranged pressing pin 6, 7, which are each controlled by means of a separate hydraulic cylinder 6a, 7a.
- the press pins 6, 7 are presently arranged in each case as opposed or oppositely acting pairs of pins. Alternative arrangements, each with only a single press pin 6, 7 and a corresponding abutment are also possible.
- the pressing member 5 is arranged on a pivot arm 8 held on the frame 1, which can be pivoted by means of an actuator 8a about an axis 8b to the pipe end 4 to or away from it.
- a holding member 9 with a clamping holder 9a for the pipe end 4 is also arranged on the pivot arm 8.
- An expanding mandrel 10 is received in a movable on the frame mandrel holder 1 1.
- the mandrel holder 11 is automatically moved along the frame 1 to bring the mandrel 10 to the height of the pipe end 4 (see Fig. 2).
- the Aufweitdorn 10 is automated in the longitudinal direction of the tube, in this case in the horizontal, vorortreibbar.
- the expanding mandrel enters into the pipe end 4 and expands this (see Fig. 3).
- the pipe end 4 can, as indicated in Fig. 3 and Fig. 4, have a sloping cutting edge 4 a with Undefined angle, with the flat conicity of the mandrel 10 still sufficient guidance and expansion is ensured.
- a first indentation 4b is introduced into the tube 3 by means of the first pressing pin 6 before advancing the expanding mandrel.
- the press pin 6 initially remains in the depressed position in the indentation 4b, so that in the tube longitudinal direction a positive retention is achieved (see position of the press pins 6, 7 in Fig. 2).
- the forces acting in the pipe longitudinal direction of the expanding mandrel 10 are thus predominantly introduced by the first press pin 6 and the pressing member 5 via the pivot arm 8 in the frame 1.
- One Slippage or migration of the tube 3 during expansion is effectively prevented.
- An indentation of the pipe end 4 by the second press pin 7 is not done at this time.
- the Aufweitdorn also has a central channel 1 1, which serves as an injector for the supply of drawing oil into the interior of the tube 3 in its end region.
- the drawing oil is expediently injected during the expansion, so that the friction of the expanding mandrel can be reduced.
- the drawing oil is the sliding of a floating mandrel 12, which is introduced after the expansion in the pipe end 4.
- the floating mandrel 12 is detachably mounted on a lanzformigen feed member 13.
- the feed member 13 is accommodated parallel to the expanding mandrel on a carrier 14 movable relative to the frame 1.
- the carrier 14 accommodates both the mandrel holder 1 1 of the expanding mandrel 10 and the feed member 13 of the floating mandrel 12.
- the thus prepared pipe end 4 can be taken with a puller (not shown) in the sharpened area and pulled by a die.
- the floating mandrel is carried along in a known manner.
- a method for preparing the pipe end 4 comprises the following automated successive steps:
- the holder 2 and the pressing member 5 are formed as separate and spaced apart units.
- the holder and the pressing member may also be formed as an integral unit.
- the pressing member may have one or more separately actuable pressing pin similar to the example described.
- at least one of the pressing pins can be formed as a fixed projection in the holder, so that closing the holder at the same time causes a dent of the pipe end. To this extent, the steps of holding the pipe end and inserting a dent are carried out not automatically sequentially, but automatically simultaneously.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016213480 | 2016-07-22 | ||
| US15/437,495 US10639690B2 (en) | 2016-07-22 | 2017-02-21 | Preparing a tube end for rod drawing |
| DE102017202723.1A DE102017202723B4 (de) | 2016-07-22 | 2017-02-21 | Vorrichtung zur Vorbereitung eines Rohrendes zum Gleitziehen |
| PCT/EP2017/068471 WO2018015533A1 (de) | 2016-07-22 | 2017-07-21 | Vorrichtung zur vorbereitung eines rohrendes zum gleitziehen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3487643A1 true EP3487643A1 (de) | 2019-05-29 |
| EP3487643B1 EP3487643B1 (de) | 2023-02-22 |
Family
ID=60889953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17751274.6A Active EP3487643B1 (de) | 2016-07-22 | 2017-07-21 | Vorrichtung zur vorbereitung eines rohrendes zum gleitziehen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10639690B2 (de) |
| EP (1) | EP3487643B1 (de) |
| JP (1) | JP6726353B2 (de) |
| DE (1) | DE102017202723B4 (de) |
| WO (1) | WO2018015533A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10423638B2 (en) * | 2017-04-27 | 2019-09-24 | Google Llc | Cloud inference system |
| CN116532495B (zh) * | 2023-05-25 | 2023-11-07 | 松阳县永欣机械制造有限公司 | 一种管胚防顶撞控制装置及冷轧管机 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US114116A (en) * | 1871-04-25 | Improvement in double-trees | ||
| US198254A (en) | 1877-12-18 | Improvement in combined cotton cultivator and planter | ||
| US1791887A (en) * | 1929-06-01 | 1931-02-10 | Nat Tube Co | Apparatus for expanding pipe ends |
| US1982544A (en) * | 1931-08-22 | 1934-11-27 | Tubus A G | Method and apparatus for elongating metal articles |
| US2016795A (en) * | 1935-05-17 | 1935-10-08 | William L Belknap | Device for flaring pipe |
| US2728373A (en) * | 1951-08-04 | 1955-12-27 | Reisholz Stahl & Roehrenwerk | Process for expanding preheated tubular bodies |
| LU57123A1 (de) * | 1967-11-09 | 1969-01-27 | ||
| US3572080A (en) * | 1968-10-03 | 1971-03-23 | George A Mitchell Co | Production of pointed workpieces |
| DE2758137C2 (de) | 1977-12-27 | 1983-12-08 | Hunger, Walter, 8700 Würzburg | Einziehmaschine zur Ausformung von Rohrangeln |
| US4779441A (en) * | 1983-04-15 | 1988-10-25 | Pringle William L | Tube having a flared end |
| GB8501572D0 (en) | 1985-01-22 | 1985-02-20 | Sansome D H | Plug drawing of tubes |
| JPS61219418A (ja) * | 1985-03-26 | 1986-09-29 | Sumitomo Light Metal Ind Ltd | 金属管の拡管抽伸方法 |
| DE3805838C2 (de) * | 1987-11-24 | 1997-03-13 | Km Europa Metal Ag | Verfahren und Vorrichtung zum Ziehen von nahtlosen Metallrohren |
| US4843860A (en) * | 1988-06-06 | 1989-07-04 | Carrier Corporation | Two stage impact beller |
| DE19756293A1 (de) | 1997-12-10 | 1999-06-17 | Mannesmann Ag | Vorrichtung zum Kalibrieren von Rohrenden |
| JP5280971B2 (ja) * | 2009-08-18 | 2013-09-04 | 昭和電工株式会社 | 金属管の引抜装置および引抜方法 |
| JP6124044B2 (ja) * | 2011-07-20 | 2017-05-10 | 京進工業株式会社 | 熱交換器挿通管の掴持体の製造方法 |
| US9555464B2 (en) * | 2012-06-21 | 2017-01-31 | Carrier Corporation | Tension expansion clamping tool block |
-
2017
- 2017-02-21 DE DE102017202723.1A patent/DE102017202723B4/de active Active
- 2017-02-21 US US15/437,495 patent/US10639690B2/en active Active
- 2017-07-21 EP EP17751274.6A patent/EP3487643B1/de active Active
- 2017-07-21 JP JP2019503326A patent/JP6726353B2/ja not_active Expired - Fee Related
- 2017-07-21 WO PCT/EP2017/068471 patent/WO2018015533A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20180021826A1 (en) | 2018-01-25 |
| DE102017202723A1 (de) | 2018-01-25 |
| EP3487643B1 (de) | 2023-02-22 |
| WO2018015533A1 (de) | 2018-01-25 |
| JP2019523138A (ja) | 2019-08-22 |
| US10639690B2 (en) | 2020-05-05 |
| DE102017202723B4 (de) | 2024-05-08 |
| JP6726353B2 (ja) | 2020-07-22 |
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