EP0099256A2 - Improvements in or relating to swaging apparatus - Google Patents
Improvements in or relating to swaging apparatus Download PDFInfo
- Publication number
- EP0099256A2 EP0099256A2 EP83303991A EP83303991A EP0099256A2 EP 0099256 A2 EP0099256 A2 EP 0099256A2 EP 83303991 A EP83303991 A EP 83303991A EP 83303991 A EP83303991 A EP 83303991A EP 0099256 A2 EP0099256 A2 EP 0099256A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- swaging
- station
- annular member
- swing
- fitting
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/02—Special design or construction
- B21J7/18—Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction, e.g. for swaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/06—Swaging presses; Upsetting presses
Definitions
- This invention is concerned with apparatus by which a loose sleeve-like fitting may be swaged onto a core.
- Swaging apparatus which provides a plurality of forming dies surrouding the article to be formed and where the forming action results from impact of the dies on the article.
- the total energy required in moving the dies so that they hit the article with the force necessary to deform it is considerable and die wear in such a apparatus is high.
- An object of the invention is to provide a swaging apparatus by which swaging can be effected by the economical use of force.
- swaging apparatus including a plurality of pivoted members which can swing simultaneously through a swaging station, in the swaging station the separation between the edges of the members remote from the axes is a minimum and when the separation is a minimum each such edge is touched by a circle of which the axis is transverse to the axes about which the pivoted members swing.
- Figure 1 shows a sleeve-like fitting 1 which is to be swaged onto a core 2.
- the fitting may serve as the termination member of a conduit and the core is in the form of a flat wire metal conduit so that this conduit, together with a conduit to which the termination member may be connected, constitutes, after swaging,a conduit assembly.
- the fitting has a hexagonal configuration and the swaging operation is such that each face 3 is swaged, or crimped, inwardly at point 4 so that the fitting is fixed tightly to the core 2.
- the apparatus by which the swaging is effected comprises a plurality of swaging tools 21 in the form of blades, each mounted for rotation about a pin 22 carried in a roller block 23 which in turn is mounted on fixed frame member 24.
- the swaging tools are arranged in a circle in three pairs,with the tools of each pair opposed to each other.
- Each tool 21 has a forming face 25 which in cross section and side view have the profiles that will produce the desired configurations of the fitting after swaging.
- the profile of the forming face forms, in the lengthwise direction of the fitting, an arc of a circle centred on the axis about which the tool swings and, transversely to this, as shown in Figure 5, the cross-section of the forming face forms part of a trapezoid.
- the swaging tools together define a swaging station 26 having an entry side to the right of a plane containing the fixed axes of the pins 22 as shown in Figure 2 and an exit side to the left of the plane.
- the tools 21 may swing from the positions in which they are shown in Figure 2 to that in which they are shown in Figure 3. During that movement, they pass through the swaging station in which the separation between them is minimum and then the forming faces, or edges, 25 of each of the tools 21 touch a circle of which the arm is transverse to the axis about which the tools swing.
- a pusher means 28 comprising a piston (not shown) slidable in hydraulic cylinder 29 and connected by rod 30 to a plate 31.
- Plate 31 has an extension 32 thereon, the end of the extension 32 forming a cavity member 33 that serves as a socket to receive an end of the fitting 1. Movement of the piston rod 30 in the direction of the straight arrows drives the cavity member 33 to the left to force the fitting through the swaging station and, as will now be described, simultaneously operates the swaging tools 21.
- each swaging tool 21 and plate 31 there is a pusher finger 40 to comprise a positive drive connection between the plate 31 and the tool.
- Each finger 40 pivotally rests at its end 41 in the plate 31. As the plate 31 moves, the fingers 40 will move the tools through the zone in which swaging is effected, the pivoting of the fingers permitting them to tilt as appropriate during this movement.
- a compression spring 42 is provided for each finger 41 to ensure that the end of the finger 41 remains in contact with the plate 31.
- Each tool 21 is connected to the plate 30 by a return spring 45 and urges each tool towards the position in which it is shown in Figure 2 so that it will return to that position after a swaging operation.
- a conduit 2 having a fitting loosely embracing the end is moved to the right, as shown in the drawings through the swaging station 26 until the fitting 1 seats within cavity member 33.
- the hydraulic cylinder 29 is pressuirized to move the plate 31 and the other components that are connected to it to the left, in the direction of the straight arrows.
- Such movement causes the fitting to move to the left and the movement of the fingers 40 rotates the tools 21 so that the forming faces 25 swing through the swaging station 26.
- the faces 25 initially contact the fitting 1 at the entry side of the swaging station, but continued movement of the fitting and swaging tools 21 results in a rolling action of the forming faces 25 on the fitting 1 with a result that the faces 3 of the fitting buckle in to: : .swage, or crimp, the fitting 1 onto the core 2.
- Continued movement of the cylinder 19 pushes the fitting beyond the swaging station to the position shown in Figure 3 at which point the fitting is removed from the cavity member 33.
- the hydraulic cylinder, and the parts that move with it, return to their starting position and return springs 45 rotate the swage tools back to their starting position where the cycle may then be repeated.
- a yieldable drive connection may be made either between the cavity member 33 and pusher means or between the pusher fingers 40 and the plate 31.
- a swage apparatus as described above swages the fitting by a rolling action rather than either by inclined sliding engagement of a tool on the fitting or by impact of a tool on the fitting with the result that total energy required for the swaging process is less.
- the apparatus that has been described may be easily adapted for automatic feeding of the parts to the apparatus and automatic operation of the apparatus.
- the swaging apparatus as described is used for swaging a loose sleeve-like fitting onto a core
- the device also can be used for forming ends of rods, cable, strands, flexible shafts and other articles.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
- This invention is concerned with apparatus by which a loose sleeve-like fitting may be swaged onto a core.
- Swaging apparatus has been proposed which providesa plurality of forming dies surrouding the article to be formed and where the forming action results from impact of the dies on the article. The total energy required in moving the dies so that they hit the article with the force necessary to deform it is considerable and die wear in such a apparatus is high. Further, it may be difficult to adapt such apparatus for automatic feed of the articles where they are, for example, to be joined onto other articles,such as sleeve-like fittings being joined onto cores.
- In an effort to reduce the forces acting on the dies, it has been proposed to taper the die surfaces that engage the article so that the die engages the article gradually. Even so, energy required to move the dies is considerable. An object of the invention is to provide a swaging apparatus by which swaging can be effected by the economical use of force.
- According to the present invention there is provided swaging apparatus including a plurality of pivoted members which can swing simultaneously through a swaging station, in the swaging station the separation between the edges of the members remote from the axes is a minimum and when the separation is a minimum each such edge is touched by a circle of which the axis is transverse to the axes about which the pivoted members swing.
- By way of example, an embodiment of the invention will now be described with reference to the accompanying drawings in which:
- Figure 1 is a partial sectional exploded view showing a sleeve-like fitting and a core prior to their being swaged together;
- Figure 2 is a view partly in section and partly in side view with some parts removed, and shows the apparatus and the fitting prior to swaging;
- Figure 3 is a view similar to that of Figure 1 showing the fitting and the apparatus after swaging;
- Figure 4 is an enlarged cross-section of the fitting of Figure 1 swaged onto the core;
- Figure 5 is an end view of the swaging apparatus seen from the left-hand side of the Figure 2;
- Figure 6 is a view similar to that of Figure 2 illustrating a modification of the swaging apparatus shown in Figure 2; and
- Figure 7 is a view similar to that of Figure 2 illustrating a further modification of the swaging apparatus shown in.Figure 2.
- Figure 1 shows a sleeve-like fitting 1 which is to be swaged onto a
core 2. - The fitting may serve as the termination member of a conduit and the core is in the form of a flat wire metal conduit so that this conduit, together with a conduit to which the termination member may be connected, constitutes, after swaging,a conduit assembly. The fitting has a hexagonal configuration and the swaging operation is such that each face 3 is swaged, or crimped, inwardly at
point 4 so that the fitting is fixed tightly to thecore 2. - The apparatus by which the swaging is effected comprises a plurality of
swaging tools 21 in the form of blades, each mounted for rotation about apin 22 carried in aroller block 23 which in turn is mounted onfixed frame member 24. - The swaging tools are arranged in a circle in three pairs,with the tools of each pair opposed to each other. Each
tool 21 has a formingface 25 which in cross section and side view have the profiles that will produce the desired configurations of the fitting after swaging. In the embodiments shown in the drawings, the profile of the forming face forms, in the lengthwise direction of the fitting, an arc of a circle centred on the axis about which the tool swings and, transversely to this, as shown in Figure 5, the cross-section of the forming face forms part of a trapezoid. - The swaging tools together define a
swaging station 26 having an entry side to the right of a plane containing the fixed axes of thepins 22 as shown in Figure 2 and an exit side to the left of the plane. Thetools 21 may swing from the positions in which they are shown in Figure 2 to that in which they are shown in Figure 3. During that movement, they pass through the swaging station in which the separation between them is minimum and then the forming faces, or edges, 25 of each of thetools 21 touch a circle of which the arm is transverse to the axis about which the tools swing. - A pusher means 28 comprising a piston (not shown) slidable in
hydraulic cylinder 29 and connected byrod 30 to aplate 31.Plate 31 has anextension 32 thereon, the end of theextension 32 forming acavity member 33 that serves as a socket to receive an end of the fitting 1. Movement of thepiston rod 30 in the direction of the straight arrows drives thecavity member 33 to the left to force the fitting through the swaging station and, as will now be described, simultaneously operates theswaging tools 21. - Between each
swaging tool 21 andplate 31 there is apusher finger 40 to comprise a positive drive connection between theplate 31 and the tool. Eachfinger 40 pivotally rests at its end 41 in theplate 31. As theplate 31 moves, thefingers 40 will move the tools through the zone in which swaging is effected, the pivoting of the fingers permitting them to tilt as appropriate during this movement. - A
compression spring 42 is provided for each finger 41 to ensure that the end of the finger 41 remains in contact with theplate 31. - Each
tool 21 is connected to theplate 30 by areturn spring 45 and urges each tool towards the position in which it is shown in Figure 2 so that it will return to that position after a swaging operation. - In using the swaging apparatus that has been described, a
conduit 2 having a fitting loosely embracing the end is moved to the right, as shown in the drawings through theswaging station 26 until the fitting 1 seats withincavity member 33. At this juncture thehydraulic cylinder 29 is pressuirized to move theplate 31 and the other components that are connected to it to the left, in the direction of the straight arrows. Such movement causes the fitting to move to the left and the movement of thefingers 40 rotates thetools 21 so that the forming faces 25 swing through theswaging station 26. Thefaces 25 initially contact the fitting 1 at the entry side of the swaging station, but continued movement of the fitting andswaging tools 21 results in a rolling action of the formingfaces 25 on the fitting 1 with a result that the faces 3 of the fitting buckle in to::.swage, or crimp, the fitting 1 onto thecore 2. Continued movement of the cylinder 19 pushes the fitting beyond the swaging station to the position shown in Figure 3 at which point the fitting is removed from thecavity member 33. The hydraulic cylinder, and the parts that move with it, return to their starting position and returnsprings 45 rotate the swage tools back to their starting position where the cycle may then be repeated. - In operation of the apparatus shown in Figures 2 and 3, there may be a tendency sometimes for the fitting to be pulled away from the
cavity member 33 which can thus result in concentricity problems arising in the staged fitting. The reason for this is the effective change in radius of theswaging tools 21 between the points on the fitting 1 at which the formingfaces 25 initially make contact with the outer surfaces of the fitting and the points in the swaging station at which the formingfaces 25 have most deeply impressed the faces 3 of the fitting of any pair are directly opposed to each other. The effective change in radius causes a difference in the peripheral speed in the longitudinal direction of the formingfaces 25 and speed in the same direction at which the fitting is moved by the pushing means so that the fitting is pulled out of thecavity member 33. - In order to compensate for this difference in speed, a yieldable drive connection may be made either between the
cavity member 33 and pusher means or between thepusher fingers 40 and theplate 31. Figure 6, where parts have similar to those occurring in the earlier Figures have the same identifying numerals, illustrates a modification of the apparatus by which a compression spring 60 is included in thecavity member 33 and in operation is abutted by the fitting 1. Any variation in the relative speed at the swaging station between the forming faces and the fitting 1 is taken up by the spring 60. - The modification illustrated by Figure 7 consists in the interposition between each of the
pusher Fingers 40 and theplate 31 of acompression spring 65. - Where a spring is interposed either in the
cavity member 33 or at an end of thepusher fingers 40, then part of the force exerted by the pusher means is absorbed by the spring. - A swage apparatus as described above swages the fitting by a rolling action rather than either by inclined sliding engagement of a tool on the fitting or by impact of a tool on the fitting with the result that total energy required for the swaging process is less. The apparatus that has been described may be easily adapted for automatic feeding of the parts to the apparatus and automatic operation of the apparatus.
- While the swaging apparatus as described is used for swaging a loose sleeve-like fitting onto a core, the device also can be used for forming ends of rods, cable, strands, flexible shafts and other articles.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39630882A | 1982-07-08 | 1982-07-08 | |
US396308 | 1982-07-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0099256A2 true EP0099256A2 (en) | 1984-01-25 |
EP0099256A3 EP0099256A3 (en) | 1986-03-19 |
Family
ID=23566720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83303991A Withdrawn EP0099256A3 (en) | 1982-07-08 | 1983-07-08 | Improvements in or relating to swaging apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0099256A3 (en) |
JP (1) | JPS5921439A (en) |
BR (1) | BR8303662A (en) |
CA (1) | CA1211031A (en) |
ES (1) | ES8405648A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3603666A1 (en) * | 1986-02-06 | 1987-08-13 | Schmid & Wezel | Method and die for the production of the end of a flexible shaft, the end having a polygonal cross-section and being twisted over a certain length |
EP1080807A1 (en) * | 1999-09-03 | 2001-03-07 | Silbermanufaktur Jezler AG | Method for manufacturing an object from at least two connected components |
EP1080808A1 (en) * | 1999-09-03 | 2001-03-07 | Silbermanufaktur Jezler AG | Method for the production of a composite article from at least two components |
WO2003080269A1 (en) * | 2002-03-20 | 2003-10-02 | The Boeing Company | Shape memory alloy tendon with swaged ends |
WO2007137543A1 (en) * | 2006-05-26 | 2007-12-06 | Müller Weingarten AG | Device and method for producing profiled bodies |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02175042A (en) * | 1988-12-27 | 1990-07-06 | Keiichiro Yoshida | Pushing reduction of short metal material by swaging machine and instrument |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR332084A (en) * | 1903-05-14 | 1903-10-15 | Otto Briede | Rolling mill with driving device, for drawing seamless tubes |
US1625340A (en) * | 1926-03-13 | 1927-04-19 | Youngstown Sheet And Tube Co | Method of making well points |
GB339800A (en) * | 1929-05-16 | 1930-12-18 | Witkowitzer Bergb Gewerkschaft | Improvements in pilger tube rolling mills |
US1912751A (en) * | 1928-04-07 | 1933-06-06 | American Fork & Hoe Co | Method and machine for making golf club shafts |
US2211622A (en) * | 1937-02-23 | 1940-08-13 | Weatherhead Corp | Forming machine |
US2979085A (en) * | 1954-12-17 | 1961-04-11 | Rogge Bernhard | Crimping device |
FR1526283A (en) * | 1967-04-14 | 1967-05-24 | Process and shrinking machine for tubular parts, with thickness regulation | |
US3396570A (en) * | 1965-08-11 | 1968-08-13 | Michigan Tool Co | Non-generating tooth forming apparatus |
US3859833A (en) * | 1972-05-26 | 1975-01-14 | Anvar | Swaging machine for tubular workpieces, with regulation of the thickness |
FR2281180A2 (en) * | 1974-08-09 | 1976-03-05 | Anvar | Machine for radially contracting pipes - internal plug ensures controlled wall thickness |
US4100785A (en) * | 1974-01-25 | 1978-07-18 | Bishop Arthur E | Method and apparatus for manufacturing valve components |
US4157025A (en) * | 1977-12-05 | 1979-06-05 | Berezin Evgeny N | Method and mill for rolling metal billets |
-
1983
- 1983-07-07 BR BR8303662A patent/BR8303662A/en unknown
- 1983-07-07 ES ES523933A patent/ES8405648A1/en not_active Expired
- 1983-07-07 CA CA000432013A patent/CA1211031A/en not_active Expired
- 1983-07-08 EP EP83303991A patent/EP0099256A3/en not_active Withdrawn
- 1983-07-08 JP JP12455383A patent/JPS5921439A/en active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR332084A (en) * | 1903-05-14 | 1903-10-15 | Otto Briede | Rolling mill with driving device, for drawing seamless tubes |
US1625340A (en) * | 1926-03-13 | 1927-04-19 | Youngstown Sheet And Tube Co | Method of making well points |
US1912751A (en) * | 1928-04-07 | 1933-06-06 | American Fork & Hoe Co | Method and machine for making golf club shafts |
GB339800A (en) * | 1929-05-16 | 1930-12-18 | Witkowitzer Bergb Gewerkschaft | Improvements in pilger tube rolling mills |
US2211622A (en) * | 1937-02-23 | 1940-08-13 | Weatherhead Corp | Forming machine |
US2979085A (en) * | 1954-12-17 | 1961-04-11 | Rogge Bernhard | Crimping device |
US3396570A (en) * | 1965-08-11 | 1968-08-13 | Michigan Tool Co | Non-generating tooth forming apparatus |
FR1526283A (en) * | 1967-04-14 | 1967-05-24 | Process and shrinking machine for tubular parts, with thickness regulation | |
US3859833A (en) * | 1972-05-26 | 1975-01-14 | Anvar | Swaging machine for tubular workpieces, with regulation of the thickness |
US4100785A (en) * | 1974-01-25 | 1978-07-18 | Bishop Arthur E | Method and apparatus for manufacturing valve components |
FR2281180A2 (en) * | 1974-08-09 | 1976-03-05 | Anvar | Machine for radially contracting pipes - internal plug ensures controlled wall thickness |
US4157025A (en) * | 1977-12-05 | 1979-06-05 | Berezin Evgeny N | Method and mill for rolling metal billets |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3603666A1 (en) * | 1986-02-06 | 1987-08-13 | Schmid & Wezel | Method and die for the production of the end of a flexible shaft, the end having a polygonal cross-section and being twisted over a certain length |
EP1080807A1 (en) * | 1999-09-03 | 2001-03-07 | Silbermanufaktur Jezler AG | Method for manufacturing an object from at least two connected components |
EP1080808A1 (en) * | 1999-09-03 | 2001-03-07 | Silbermanufaktur Jezler AG | Method for the production of a composite article from at least two components |
WO2003080269A1 (en) * | 2002-03-20 | 2003-10-02 | The Boeing Company | Shape memory alloy tendon with swaged ends |
WO2007137543A1 (en) * | 2006-05-26 | 2007-12-06 | Müller Weingarten AG | Device and method for producing profiled bodies |
US8596104B2 (en) | 2006-05-26 | 2013-12-03 | Mueller Weingarten Ag | Device and method for producing profiled bodies |
Also Published As
Publication number | Publication date |
---|---|
EP0099256A3 (en) | 1986-03-19 |
CA1211031A (en) | 1986-09-09 |
BR8303662A (en) | 1984-02-14 |
JPS5921439A (en) | 1984-02-03 |
ES523933A0 (en) | 1984-06-16 |
ES8405648A1 (en) | 1984-06-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 19840712 |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB |
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17Q | First examination report despatched |
Effective date: 19880310 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Withdrawal date: 19880820 |
|
18D | Application deemed to be withdrawn |
Effective date: 19880721 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KOTTKE, LOUIS EARL |