EP0476350A1 - Swaging Machine - Google Patents
Swaging Machine Download PDFInfo
- Publication number
- EP0476350A1 EP0476350A1 EP91114132A EP91114132A EP0476350A1 EP 0476350 A1 EP0476350 A1 EP 0476350A1 EP 91114132 A EP91114132 A EP 91114132A EP 91114132 A EP91114132 A EP 91114132A EP 0476350 A1 EP0476350 A1 EP 0476350A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dies
- swaging
- spindle
- hammers
- die
- 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- Withdrawn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
- 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
- B21J7/14—Forging machines working with several hammers
- B21J7/145—Forging machines working with several hammers the hammers being driven by a rotating annular driving member
-
- 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
- B21J7/14—Forging machines working with several hammers
- B21J7/16—Forging machines working with several hammers in rotary arrangements
Definitions
- the present invention relates to a swaging machine, in particular, to a swaging machine enabling to improve its accuracy of finishing and machining works.
- the swaging machine has been used in which small bars and round rods are put into (set in) a machining portion constructed by several dies which strike the works so as to form them of desired shapes.
- Fig. 10 is a front view showing an example of the machining head 1 of the conventional swaging machine.
- the conventional swaging machine shown in Fig. 10 it comprises a spindle 2, a machining portion 11 for machining the work placed on the spindle 2, a plurality of dies 5 slidably placed around the machining portin 11, swaging hammers 7 slidably arrange around the dies 5 so as to press them functioning their operations, wedges 4 inserted between the dies 5 and the swaging hammer 7 so as to control the size of the machining portion 11, limit plates 73 restricting the strokes of the swaging hammers 7, and a plurality of rollers 82 and an outer ring 8.
- the conventional swaging machine above has a die driving arranged on the outer periphery of the swaging hammer 7, and springs 54 and 74 for urging outside the dies 5 and the swaging hammer 7.
- the wedges 4 are moved along the axial direction to control the positions of the dies 5 and accordingly the size of the machining portion 11 is set at a suitable one to the diameter of the work.
- movement strokes of the dies 5 are restricted by a number of limit plates 73 inserted between the spindle 2 and the swaging hammer 7.
- outside movement of the dies 5 is restricted or controlled by a clearance g i formed between the swaging hammer 7 and the limit plate 73, and centralizing movement of the dies 5 is by a gap g 2 between the swaging hammer 7 and the limit plate 73. It is noted that the movement of dies 5 along their outside direction is no problem.
- the gravity functions on the dies (I) and (II), respectively placed at their upper positions along the direction toward the center of the machining head 1.
- the gravity functions as an outside directed force to them.
- the present invention to provide a swaging machine for directly restricting the movement stroke of the dies in order to solve the technical problem of the prior art and attaining a swaging machining with a high machining precision.
- the swaging machine has limit plates restricting the strokes of dies and functions cooperatively with the wedges, which plates are arranged between a spindle of the machining head of the swaging machine and the dies.
- the wedges and dies are driven and move toward the center.
- the distance of movement of the dies is limited to a fixed one without being effected of changes of machining reaction and spring reaction.
- the limit plates as well as the wedges cooperatively move in order to keep always the gap distance between the dies and the limit plates at a fixed one.
- Fig. 1 is a front view of the important portion of the swaging machine according to the present invention
- Fig. 2 is a section taken along a line A-A of Fig. 1
- Fig. 3 is a partly enlarged view of Fig. 1
- Fig. 4 is a section taken along a line B-B of Fig. 3
- Fig. 5 is a section taken along a C-C of Fig. 4
- Fig. 6 is a perspective view of an example of a wedge holding member
- Fig. 7 is a perspective view of an example of the wedge
- Fig. 8 is a perspective view of an example of the die
- Fig. 9 is a perspective view of an example of the limit plate for the die
- Fig. 10 is a front view of an example of the machining head of the conventional swaging machine.
- a cylindrical or hollow spindle 2 in the machining head 1 has a cross groove 21 formed on its surface.
- a sliding shaft 22 is contained in the hollow of the cylindrical spindle 2 through bearings.
- a wedge supporting member 3 fixed on a front end portion of the sliding shaft 22 has a cross groove 31 of a section: T as shown in Fig. 6 formed thereon.
- the wedge 4 as shown in Fig. 7 of a shape of T in plane and consists of a head portion 41 and an operative portion 42.
- the operative portion 42 has a side tapered at a slant a head 41 of the wedge 4 is slidably installed in the groove 31 of the wedge supporting member 3.
- the die 5 has a cut-out portion 51 of a section of an arc formed at its front end and has a shape of a block slidably installed in the groove 21 of the hollow spindle 2.
- the cut-out portions 51 of respective dies function as an element of a machining portion 11 of a circular shape.
- the die 5 has a surface 52 opposing to the cut-out portion 51, which surface is slanted at an angle a of the slanted face 43 of the wedge 4.
- the die 5 has a side face provided with a groove 53 extending in parallel with the slanted face 52.
- Springs 54 are inserted between two adjacent dies 4 in order to press always the dies 4 toward the wedges 4.
- the limit plate 6 for the dies 5 is slidably inserted between the groove 53 of the dies 5 and a groove 23 so formed in the spindle 2 as to oppose the groove 53.
- the limit plate 6 consists of a die fitting portion 61 fitted into the groove 53 of the die 5, a spindle fitting portion 62 fitted into the groove 23 of the spindle 2, and an engagement 63 slidably fitted in the groove 31 of the wedge supporting member 3 together with the wedge 4.
- the die fitting portion 61 has an upper face 64 having an angle a identical with that of the slanted face 41 of the wedge 4.
- a width of the groove 53 of the die 5 is determined so as to leave when the die fitting portion 61 of the die limit plate 6 is fitted into the groove 53, a gap g 3 between the slanted face and a side (upper face) of the groove 53, which gap g 3 is substantially identical with the gap gi formed between the hammer limit plate 73 and the swaging hammer 7, and another gap g 4 between the lower face of the die limit plate 6 and another side (lower face) of the groove 53, which gap g 4 is substantially equal to the gap g 2 .
- the swaging hammer 7 is slidably installed in the groove 21 of the hollow spindle 2 through the wedge 4 has a flat shape of substantial T and a front end portion 71 of a convex shape.
- the hammer limit plate 73 is slidably inserted between the groove 72 formed at the side face of the swaging hammer 7 and another groove 24 formed in the hollow spindle 2.
- Springs 74 are installed between the spindle 2 and the swaging hammer 7 so as to urge constantly the swaging hammer 7 outward.
- An outer ring 8 is made of wear resistance material.
- a number of rollers 82 contained and arranged at a regular interval in the roller cage 81 are placed between the outer ring 8 and the hollow spindle 2. Respective rollers 82 come in contact in line with an outer periphery face of the spindle 2 and an inner periphery face of the outer ring 8.
- a flywheel 83 is integrally installed on the outer periphery of the outer ring 8.
- the swaging hammer 7 displaces toward the center of the machining head 1 against a force of the spring 74 when the roller 82 rides on the convex 71 of the swaging hammer 7. thus the wedge 4 and the dies 5 are driven to move toward the center striking and machining the work set in the machining portion 11.
- the rollers 82 is disengaged from the convex 71 of the swaging hammer 7, these rollers immediately return to their original positions by force of the springs 54 and 74.
- the size of the machining portion 11 can be controlled by advancing or backing the wedge 4.
- dies limit plates 6 are placed between the spindle 2 and the dies 5 in order to make a gap g 3 between the dies 5 and the dies limit plate 6.
- the gap g 3 is used to control the strokes of the dies 5 moving toward the center portion of the dies 5, so that it is possible to keep the movement distance of the dies 5 constantly at an uniform one.
- the dies limit plate 6 attached to the wedge supporting member 3 moves together with the wedge 4, as a result it is possible to always keep the gap g 3 between the slanted face 64 of the dies limit plate 6 and the die 5 at a predetermined distance.
- the spindle 2 is stable and the outer ring 8 rotates. It is apparent, however, that the present invention can carry out in another aspect in which the outer ring 8 is stable and the spindle 2 is rotary.
- the swaging machine of the present invention has four dies 5 arranged around the hollow spindle 2, however, it is possible to select the number of the die to two and three, and to suitably and slightly change the structure of respective parts of the swaging machine.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A swaging machine comprises a machining head (1), a plurality of swaging dies (5) respectively so placed in a hollow interior of a spindle (2) as to slide along grooves formed in the machining head (1), a plurality of swaging hammers (7), each arranged on the outer circumference of the dies, a plurality of wedges (4) inserted between the swaging a hammers and the die so as to move longitudinally of the spindle (2). The machining head (1) further has a set of rollers (82) and an outer ring (8). The rollers (82) are rotatably arranged between the spindle (2) and the outer ring (8). The diameter of the rollers (82) is slightly larger than the distance between the spindle (2) and the outer ring (8), so the dies (5) intermittently strike or swage the work placed in the center space of the set of dies (5) through the swaging hammers (7) when the outer ends of the hammers (7) are pressed innerward through the rotating rollers (82).
Description
- The present invention relates to a swaging machine, in particular, to a swaging machine enabling to improve its accuracy of finishing and machining works.
- The swaging machine has been used in which small bars and round rods are put into (set in) a machining portion constructed by several dies which strike the works so as to form them of desired shapes.
- Fig. 10 is a front view showing an example of the machining head 1 of the conventional swaging machine. According to the conventional swaging machine shown in Fig. 10, it comprises a
spindle 2, a machining portion 11 for machining the work placed on thespindle 2, a plurality ofdies 5 slidably placed around the machining portin 11, swaginghammers 7 slidably arrange around thedies 5 so as to press them functioning their operations,wedges 4 inserted between thedies 5 and theswaging hammer 7 so as to control the size of the machining portion 11,limit plates 73 restricting the strokes of theswaging hammers 7, and a plurality ofrollers 82 and anouter ring 8. Also, the conventional swaging machine above has a die driving arranged on the outer periphery of theswaging hammer 7, andsprings dies 5 and theswaging hammer 7. - In operation of the conventional swaging machine, when the
outer ring 8 rotates at a high speed, therollers 82 come in contact with theswaging hammer 7, thereby the motions of the up-and-downswaging hammer 7 are transferred to thedies 5 through thewedges 4. As a result, thedies 5 respectively move toward the center of the machining head 1 striking at a high speed the work machining and forming the work of a desired size. - Meanwhile, when another work having a diameter of different size is machined, the
wedges 4 are moved along the axial direction to control the positions of thedies 5 and accordingly the size of the machining portion 11 is set at a suitable one to the diameter of the work. - Next, the technical problems and their solutions will be explained with reference to the background art above.
- According to the conventional swaging machine, movement strokes of the
dies 5 are restricted by a number oflimit plates 73 inserted between thespindle 2 and theswaging hammer 7. In other words, outside movement of thedies 5 is restricted or controlled by a clearance gi formed between theswaging hammer 7 and thelimit plate 73, and centralizing movement of thedies 5 is by a gap g2 between theswaging hammer 7 and thelimit plate 73. It is noted that the movement ofdies 5 along their outside direction is no problem. - Concerning the centralizing movement above, because the
swaging hammer 7 and thedie 5 are different in structure from each other and placed independently through thewedge 4, it is difficult to make the movement distances of thedies 5 along the central direction equal to each other or uniform due to change of machining reaction and rebounding force of thespring 54, even the strokes of theswaging hammers 7 are restricted. - In addition, when the
dies 5 are placed as shown in Fig. 10, the gravity functions on the dies (I) and (II), respectively placed at their upper positions along the direction toward the center of the machining head 1. On the contrary, as for the dies (III) and(IV) placed the lower positions, the gravity functions as an outside directed force to them. - Consequently, an imbalance is created between these two sets of dies (I),(II) and other dies (III), (IV).
- Such difference between effects of the gravity to the two sets of the dies influences on the accuracy of finishing and machining work, curveness, circularity, and size, making the machining of the works with a high precision difficult.
- Accordingly, it is the purpose of the present invention to provide a swaging machine for directly restricting the movement stroke of the dies in order to solve the technical problem of the prior art and attaining a swaging machining with a high machining precision.
- It is noted that the swaging machine according to the present invention has limit plates restricting the strokes of dies and functions cooperatively with the wedges, which plates are arranged between a spindle of the machining head of the swaging machine and the dies.
- When the swaging hammers are driven a drive mechanism and move toward the center of the machining head, the wedges and dies are driven and move toward the center. The distance of movement of the dies is limited to a fixed one without being effected of changes of machining reaction and spring reaction.
- When the machining opening formed by dies is controlled by moving the wedges along the front-and-behind direction, the limit plates as well as the wedges cooperatively move in order to keep always the gap distance between the dies and the limit plates at a fixed one.
- Fig. 1 is a front view of the important portion of the swaging machine according to the present invention; Fig. 2 is a section taken along a line A-A of Fig. 1; Fig. 3 is a partly enlarged view of Fig. 1; Fig. 4 is a section taken along a line B-B of Fig. 3; Fig. 5 is a section taken along a C-C of Fig. 4; Fig. 6 is a perspective view of an example of a wedge holding member; Fig. 7 is a perspective view of an example of the wedge; Fig. 8 is a perspective view of an example of the die; Fig. 9 is a perspective view of an example of the limit plate for the die; and Fig. 10 is a front view of an example of the machining head of the conventional swaging machine.
- One way of carrying out the present invention will be described using examples of the swaging machine according to the present invention referring to the drawings.
- As shown clearly in Figs.1 to Fig. 5, a cylindrical or
hollow spindle 2 in the machining head 1 has across groove 21 formed on its surface. Asliding shaft 22 is contained in the hollow of thecylindrical spindle 2 through bearings. Awedge supporting member 3 fixed on a front end portion of thesliding shaft 22 has across groove 31 of a section: T as shown in Fig. 6 formed thereon. Thewedge 4 as shown in Fig. 7 of a shape of T in plane and consists of ahead portion 41 and anoperative portion 42. Theoperative portion 42 has a side tapered at a slant ahead 41 of thewedge 4 is slidably installed in thegroove 31 of thewedge supporting member 3. - The die 5 has a cut-out
portion 51 of a section of an arc formed at its front end and has a shape of a block slidably installed in thegroove 21 of thehollow spindle 2. The cut-outportions 51 of respective dies function as an element of a machining portion 11 of a circular shape. As shown in Fig. 8, the die 5 has asurface 52 opposing to the cut-outportion 51, which surface is slanted at an angle a of theslanted face 43 of thewedge 4. The die 5 has a side face provided with agroove 53 extending in parallel with theslanted face 52. Springs 54 are inserted between twoadjacent dies 4 in order to press always thedies 4 toward thewedges 4. - The
limit plate 6 for thedies 5 is slidably inserted between thegroove 53 of thedies 5 and agroove 23 so formed in thespindle 2 as to oppose thegroove 53. As shown in Fig.9, thelimit plate 6 consists of adie fitting portion 61 fitted into thegroove 53 of thedie 5, aspindle fitting portion 62 fitted into thegroove 23 of thespindle 2, and anengagement 63 slidably fitted in thegroove 31 of thewedge supporting member 3 together with thewedge 4. Thedie fitting portion 61 has anupper face 64 having an angle a identical with that of theslanted face 41 of thewedge 4. - A width of the
groove 53 of thedie 5 is determined so as to leave when thedie fitting portion 61 of thedie limit plate 6 is fitted into thegroove 53, a gap g3 between the slanted face and a side (upper face) of thegroove 53, which gap g3 is substantially identical with the gap gi formed between thehammer limit plate 73 and theswaging hammer 7, and another gap g4 between the lower face of thedie limit plate 6 and another side (lower face) of thegroove 53, which gap g4 is substantially equal to the gap g2. - The
swaging hammer 7 is slidably installed in thegroove 21 of thehollow spindle 2 through thewedge 4 has a flat shape of substantial T and afront end portion 71 of a convex shape. Thehammer limit plate 73 is slidably inserted between thegroove 72 formed at the side face of theswaging hammer 7 and anothergroove 24 formed in thehollow spindle 2. Springs 74 are installed between thespindle 2 and theswaging hammer 7 so as to urge constantly theswaging hammer 7 outward. - An
outer ring 8 is made of wear resistance material. A number ofrollers 82 contained and arranged at a regular interval in theroller cage 81 are placed between theouter ring 8 and thehollow spindle 2.Respective rollers 82 come in contact in line with an outer periphery face of thespindle 2 and an inner periphery face of theouter ring 8. Aflywheel 83 is integrally installed on the outer periphery of theouter ring 8. - Next, an operation of the swaging machine according to the present invention will be explained.
- When the
hollow spindle 2 is stable and theouter ring 8 rotates, for example, along a direction of an arrow (a), therollers 82 slidingly coming into contact with theouter ring 8 rolls along a direction of an arrow (b) and moves along the direction equal to that of theouter ring 8. While, theconvex portion 71 of theswaging hammer 7 slides on alternately theroller cage 81 and theroller 82, together with the rotation of theouter ring 8. Because theroller 82 extrudes a little from the inner face of theroller cage 81, theswaging hammer 7 displaces toward the center of the machining head 1 against a force of thespring 74 when theroller 82 rides on theconvex 71 of theswaging hammer 7. thus thewedge 4 and thedies 5 are driven to move toward the center striking and machining the work set in the machining portion 11. When therollers 82 is disengaged from the convex 71 of theswaging hammer 7, these rollers immediately return to their original positions by force of thesprings wedge 4. - Meanwhile, because in the conventional swaging machine the strokes of the
dies 5 are restricted by only thehammer limit plate 73 placed between thespindle 2 and theswaging hammer 7, it is difficult to make the movement distances toward the center of thedies 5 equal each other. - According to the present invention, in addition of the
hammer limit plate 73,dies limit plates 6 are placed between thespindle 2 and thedies 5 in order to make a gap g3 between thedies 5 and thedies limit plate 6. The gap g3 is used to control the strokes of thedies 5 moving toward the center portion of thedies 5, so that it is possible to keep the movement distance of thedies 5 constantly at an uniform one. - When the
wedge 4 is moved along front-and- back direction to control the opening of the machining portion 11, thedies limit plate 6 attached to thewedge supporting member 3 moves together with thewedge 4, as a result it is possible to always keep the gap g3 between theslanted face 64 of thedies limit plate 6 and thedie 5 at a predetermined distance. - According to the embodiment above of the swaging machine of the present invention, the
spindle 2 is stable and theouter ring 8 rotates. It is apparent, however, that the present invention can carry out in another aspect in which theouter ring 8 is stable and thespindle 2 is rotary. - In the statement above, the swaging machine of the present invention has four
dies 5 arranged around thehollow spindle 2, however, it is possible to select the number of the die to two and three, and to suitably and slightly change the structure of respective parts of the swaging machine. - Because that the limit plate is placed between the spindle and the die so as to control the stroke of the die and cooperate with the wedge, it is possible to always sustain the movement volumes of the dies. Consequently, a swaging machine having a high precision of machining is firmly attained.
Claims (1)
1. A swaging machine comprising a plurality of dies (5) placed in a spindle (2) so as to slide toward a center of the machine, a plurality of swaging hammers (7) respectively arranged on the outer periphery of the dies, a plurality of wedges (4) installed between said swaging hammers and said dies so as to move along a longitudinal direction, and a drive mechanism provided with a plurality of rollers (82) in order to intermittently drive the swaging hammers (7), wherein the work is striken when the drive mechanism makes said swaging hammer (7), the wedge (4), and the dies (5) move toward the central portion of a machining head of the swaging machine so as to machine said work, Characterized in that further comprising a limit plate (6) arranged between said spindle (2) and the die (5) so as to restrict the stroke of the die (5) and cooperate with said wedge (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2235752A JP2887513B2 (en) | 1990-09-07 | 1990-09-07 | Swaging machine |
JP235752/90 | 1990-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0476350A1 true EP0476350A1 (en) | 1992-03-25 |
Family
ID=16990707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91114132A Withdrawn EP0476350A1 (en) | 1990-09-07 | 1991-08-23 | Swaging Machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0476350A1 (en) |
JP (1) | JP2887513B2 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2755042A1 (en) * | 1996-10-24 | 1998-04-30 | Lemforder Nacam Sa | PROCESS FOR OBTAINING SPLINES ON A TREE |
CN1049374C (en) * | 1992-12-26 | 2000-02-16 | 吉田桂一郎 | Method and apparatus for working on mold forging machine |
DE19955323B4 (en) * | 1999-11-17 | 2007-11-29 | Volkswagen Ag | Rotary swaging machine with slide-mounted tool arrangement |
DE19952229B4 (en) * | 1999-10-29 | 2008-02-07 | Volkswagen Ag | swaging machine |
DE19955321B4 (en) * | 1999-11-17 | 2008-02-07 | Volkswagen Ag | Rotary swaging machine with hydraulic force compensation |
DE19954210B4 (en) * | 1999-11-11 | 2008-04-03 | Volkswagen Ag | swaging machine |
DE102007031482A1 (en) * | 2007-07-06 | 2009-01-08 | Otto Bihler Maschinenfabrik Gmbh & Co Kg | ring Press |
DE10341716B4 (en) * | 2003-03-25 | 2009-12-24 | Forschungsgesellschaft Umformtechnik Mbh | Device for the radial forming of rod, tube or wire-shaped workpieces |
WO2011124487A1 (en) * | 2010-04-09 | 2011-10-13 | Felss Gmbh | Tool unit of a rotary kneading machine |
CN102773305A (en) * | 2012-08-13 | 2012-11-14 | 李德昌 | Conical square pipe machine for conical degree of pipe, assembly process and machining method |
US20130055779A1 (en) * | 2010-04-09 | 2013-03-07 | Martin Hork | Tool unit of a rotary swaging machine |
CN107626870A (en) * | 2017-10-25 | 2018-01-26 | 平阳县尚伟笔业有限公司 | For processing the power head device of nib |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1955535A (en) * | 1930-12-08 | 1934-04-17 | American Chain & Cable Co | Metal working machine |
US2443874A (en) * | 1944-01-21 | 1948-06-22 | Smith Samuel | Rotary swaging machine |
US2636405A (en) * | 1947-03-18 | 1953-04-28 | Smith Samuel | Rotary swaging machine |
US2746321A (en) * | 1952-07-01 | 1956-05-22 | Smith Samuel | Rotary swaging machines |
DE2452819A1 (en) * | 1974-11-07 | 1976-05-20 | Mueller Heinrich Masch | Sealing elements for rotary kneading machines - has parts opening outwards when impacted by other parts and bent spring lift limiters |
DE3144981A1 (en) * | 1981-11-12 | 1983-05-19 | Fa. Heinrich Müller, 7530 Pforzheim | Open-die kneading machine with plates for the radial positive guidance of the tools |
DE3202506A1 (en) * | 1982-01-27 | 1983-09-01 | Fa. Heinrich Müller, 7530 Pforzheim | 4-Ram saddle-type round kneading machine |
-
1990
- 1990-09-07 JP JP2235752A patent/JP2887513B2/en not_active Expired - Lifetime
-
1991
- 1991-08-23 EP EP91114132A patent/EP0476350A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1955535A (en) * | 1930-12-08 | 1934-04-17 | American Chain & Cable Co | Metal working machine |
US2443874A (en) * | 1944-01-21 | 1948-06-22 | Smith Samuel | Rotary swaging machine |
US2636405A (en) * | 1947-03-18 | 1953-04-28 | Smith Samuel | Rotary swaging machine |
US2746321A (en) * | 1952-07-01 | 1956-05-22 | Smith Samuel | Rotary swaging machines |
DE2452819A1 (en) * | 1974-11-07 | 1976-05-20 | Mueller Heinrich Masch | Sealing elements for rotary kneading machines - has parts opening outwards when impacted by other parts and bent spring lift limiters |
DE3144981A1 (en) * | 1981-11-12 | 1983-05-19 | Fa. Heinrich Müller, 7530 Pforzheim | Open-die kneading machine with plates for the radial positive guidance of the tools |
DE3202506A1 (en) * | 1982-01-27 | 1983-09-01 | Fa. Heinrich Müller, 7530 Pforzheim | 4-Ram saddle-type round kneading machine |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1049374C (en) * | 1992-12-26 | 2000-02-16 | 吉田桂一郎 | Method and apparatus for working on mold forging machine |
FR2755042A1 (en) * | 1996-10-24 | 1998-04-30 | Lemforder Nacam Sa | PROCESS FOR OBTAINING SPLINES ON A TREE |
EP0841111A1 (en) * | 1996-10-24 | 1998-05-13 | Lemforder Nacam S.A. | Method of obtaining grooves on a shaft |
DE19952229B4 (en) * | 1999-10-29 | 2008-02-07 | Volkswagen Ag | swaging machine |
DE19954210B4 (en) * | 1999-11-11 | 2008-04-03 | Volkswagen Ag | swaging machine |
DE19955323B4 (en) * | 1999-11-17 | 2007-11-29 | Volkswagen Ag | Rotary swaging machine with slide-mounted tool arrangement |
DE19955321B4 (en) * | 1999-11-17 | 2008-02-07 | Volkswagen Ag | Rotary swaging machine with hydraulic force compensation |
DE10341716B4 (en) * | 2003-03-25 | 2009-12-24 | Forschungsgesellschaft Umformtechnik Mbh | Device for the radial forming of rod, tube or wire-shaped workpieces |
DE102007031482A1 (en) * | 2007-07-06 | 2009-01-08 | Otto Bihler Maschinenfabrik Gmbh & Co Kg | ring Press |
WO2011124487A1 (en) * | 2010-04-09 | 2011-10-13 | Felss Gmbh | Tool unit of a rotary kneading machine |
CN102834199A (en) * | 2010-04-09 | 2012-12-19 | 菲尔斯有限责任公司 | Tool unit of a rotary kneading machine |
US20130055779A1 (en) * | 2010-04-09 | 2013-03-07 | Martin Hork | Tool unit of a rotary swaging machine |
CN102834199B (en) * | 2010-04-09 | 2015-07-29 | 菲尔斯有限责任公司 | The tool unit of swager |
US9149861B2 (en) | 2010-04-09 | 2015-10-06 | Felss Gmbh | Rotary swage tool unit with easy accessible tool space |
CN102773305A (en) * | 2012-08-13 | 2012-11-14 | 李德昌 | Conical square pipe machine for conical degree of pipe, assembly process and machining method |
CN107626870A (en) * | 2017-10-25 | 2018-01-26 | 平阳县尚伟笔业有限公司 | For processing the power head device of nib |
Also Published As
Publication number | Publication date |
---|---|
JPH04118137A (en) | 1992-04-20 |
JP2887513B2 (en) | 1999-04-26 |
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