EP1185389A1 - Dispositif pour l'usinage d'extremites de tubes pour l'obtention d'un joint de soudage - Google Patents

Dispositif pour l'usinage d'extremites de tubes pour l'obtention d'un joint de soudage

Info

Publication number
EP1185389A1
EP1185389A1 EP00935081A EP00935081A EP1185389A1 EP 1185389 A1 EP1185389 A1 EP 1185389A1 EP 00935081 A EP00935081 A EP 00935081A EP 00935081 A EP00935081 A EP 00935081A EP 1185389 A1 EP1185389 A1 EP 1185389A1
Authority
EP
European Patent Office
Prior art keywords
gear
shaft
tool slide
unit
tool
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Withdrawn
Application number
EP00935081A
Other languages
German (de)
English (en)
Inventor
Erhard Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wohlhaupter GmbH
Original Assignee
Wohlhaupter GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wohlhaupter GmbH filed Critical Wohlhaupter GmbH
Publication of EP1185389A1 publication Critical patent/EP1185389A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/16—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
    • B23B5/161—Devices attached to the workpiece
    • B23B5/162—Devices attached to the workpiece with an internal clamping device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/22—Portable lathe for pipe turning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2522—Portable

Definitions

  • the present invention relates to a device for machining pipe ends for producing a weld joint with a housing which can be fixed to the pipe to be machined and on which a shaft which can be driven in rotation is mounted, and with a rotating unit which is arranged on the shaft in a rotationally fixed manner and has a radial, transverse to the longitudinal axis of the shaft adjustable tool slide, on which a cutting plate is held for clamping the face of the tube.
  • Devices of this type are used when the end face of a pipe, for example a metal pipe, is to be provided with a weld joint, so that the pipe can be welded to a further pipe to form a connecting seam.
  • the pipes are then usually used to transport a wide variety of liquid or gaseous media, with the aim being to ensure that no media escapes at the weld seams.
  • a wide variety of joint shapes are known for the weld joint required to produce a high-quality weld seam, for example I-joints, V-, Y- and U-joints with different flank pitch angles.
  • Devices for producing such joints are known in which a housing can be fixed on the pipe end to be machined by means of a clamping unit.
  • a rotatable shaft is mounted in the housing, with the aid of which a rotating unit can be set in rotation, one on the rotating unit Tool holder is held with a cutting plate.
  • the cutting plate is usually in engagement with the end face of the tube over the entire cutting length, ie a chamfering operation takes place.
  • the cutting plate is axially fed manually using a feed wheel.
  • the manual infeed controls the chip break and thus also the sheath service life and the required processing time.
  • the manufacturing times for a chamfering operation are more than seven hours on average, whereby the surfaces produced at the pipe ends have only a low surface quality due to chatter marks.
  • Devices for machining pipe ends for producing a weld joint are also known, in which the tool slide is mounted on the rotary unit so that it can be adjusted radially, so that the pipe end can be turned radially. The radial movement of the tool slide takes place manually, which results in a considerable machining time.
  • the cutting plate is aligned at a fixed predetermined cutting angle and fixed in this orientation on the tool slide. If the orientation of the cutting plate is to be changed in order to vary the setting angle and thus the shape of the weld joint, the rotating unit must be stopped to change the inclination of the cutting plate manually. This also increases the processing time.
  • the object of the present invention is to develop a device of the generic type in such a way that a weld joint can be processed in a shorter time higher quality surface quality can be produced.
  • a continuous turning operation takes place in that the tool slide and the cutting plate held on it carry out an uninterrupted radial movement.
  • the front end of the pipe to be machined is turned off.
  • This enables considerably economical work values, namely speeds of rotation of, for example, 10 to 50 revolutions per minute and feed values of approx. 0.15 mm per revolution.
  • This enables considerably shorter working hours to be achieved, for example processing times of one to two hours.
  • the turning operation can produce a high-quality, shape-accurate surface.
  • Another advantage of the device according to the invention can be seen in the fact that the cutting insert is held on the tool slide so as to be adjustable in the axial direction. This makes it possible to achieve a wide variety of weld joint shapes by changing the axial position of the insert. Such a change tion can take place in particular during the rotational movement of the rotating unit and the radial movement of the tool slide without the device having to be stopped for this purpose. This also involves a considerable reduction in the processing times required.
  • the device has a copying unit which forms a positive guide for the cutting plate.
  • a predeterminable movement can be imposed on the cutting plate, so that the cutting plate changes its position depending on the desired joint shape during the radial movement of the tool slide.
  • the desired contour of the face of the pipe end can thus be created by copy turning.
  • Copy turning has the particular advantage that a wide variety of weld joint shapes can be created by quickly changing the copying unit.
  • the same cutting insert can be used in each case; if the shape of the weld joint changes, the operator only has to replace the copying unit. For this purpose, it is advantageous if the copying unit is held interchangeably on the rotating unit.
  • the cutting plate is held interchangeably on the copying unit so that it can be replaced independently of the copying unit.
  • the tool slide has a sliding guide, along which the cutting plate is displaceable in the axial direction.
  • a dovetail guide can be used to hold the insert on the tool slide.
  • the sliding guide comprises serration, ie the mutually facing surfaces of the tool slide and a cutting plate holder provided for holding the cutting plate on the tool slide each have a toothing and engage with this toothing. This allows particularly easy handling, especially when replacing the insert.
  • the radial adjustment of the tool slide is preferably carried out in such a way that the tool slide is held in a radially displaceable manner on a spindle which can be driven in rotation by the shaft.
  • the spindle is preferably oriented transversely to the longitudinal axis of the shaft, and the spindle can be driven, for example, by bevel gears or a worm gear.
  • the gear means used for coupling the radial movement of the tool slide with the rotary movement of the shaft comprise a switching unit for selectively switching the radial movement of the tool slide between a lead during the machining of the pipe end and a rapid return to return the tool slide to its original position.
  • the turning operation is preferably carried out radially from the outside inwards, and the tool slide is fed in with the After a radial movement, the cutting insert takes place via the rapid return and a subsequent axial presentation of the housing, which for this purpose is adjustable in the axial direction on the pipe to be machined, a feed of approximately 0.15 mm usually taking place.
  • the number of radial movements or cuts required depends in particular on the desired shape of the joint. In any case, however, the rapid return achieves a considerable reduction in the processing time.
  • the switching unit preferably has a manually operated switching lever.
  • a neutral position is additionally provided, which is characterized in that the tool slide is not in drive connection with the shaft. This enables external or internal machining of the tube, because in the neutral position the radial movement of the tool slide is interrupted, so that while the rotational movement of the rotating unit is maintained and the device is simultaneously moved axially, for example by means of a hand crank, the tube is turned inside out or turned over can.
  • the tool slide can be manually adjusted in the neutral position, for example by means of a hand crank which can be placed radially from the outside on the spindle or an adjusting wheel.
  • the switching unit comprises a control element which can be actuated automatically by the tool slide when it reaches its end position. If the tool slide has carried out a radial movement, for example from the outside inwards, and has reached its end position, then it actuates the control element, with the aid of which the switching unit is switched to rapid return and thus the tool slide is automatically returned to its starting position after a radial movement has been carried out.
  • the control element can be designed, for example, as a pivotable control disk, for example in the form of a cam disk or a pivotally mounted transmission lever.
  • the device according to the invention can be used for a wide variety of pipe diameters and pipe wall thicknesses.
  • pipe diameters of approximately 200 mm to approximately 610 mm can be processed by means of the device according to the invention, whereby pipe wall thicknesses of up to approximately 60 mm can be used.
  • Different tube wall thicknesses require a different adjustment path of the tool slide.
  • This can preferably be set manually.
  • it can be provided, for example, that at least one stop is held on the tool slide, to which the control element for actuating the switching unit can be placed and which is held adjustably for adjusting the adjustment path of the tool slide is.
  • the stop can thus be adjusted accordingly, a scale preferably being arranged on the tool slide for this purpose.
  • the tool slide can also be easily adjusted manually to the desired pipe diameter using the scale. If the tool slide reaches its end position after carrying out a radial movement, then the stop abuts the control member, so that the advance of the tool slide is ended by means of the switching unit and the rapid return is switched on instead.
  • the gear means comprise a planetary gear with a planet gear for driving the tool slide and a coupling unit for coupling the rotary movement of the shaft with the movement of the planetary gear.
  • a coupling unit for coupling the rotary movement of the shaft with the movement of the planetary gear.
  • the planetary gear preferably comprises a rotatably arranged ring gear on which the planet gear rolls and which can be driven by the shaft via the coupling unit.
  • a toothed ring held in rotation with the shaft can be used between the shaft and the coupling unit, the toothed ring being particularly preferably parallel lel is arranged to the revolving plane of the planet gear.
  • the coupling unit preferably comprises a pair of gearwheels with first and second gearwheels which can be coupled to one another and which are operatively connected to the shaft or to the planetary gear.
  • the gearwheel pair By means of the gearwheel pair, the rotational movement of the shaft can be transmitted to the planetary gear in a structurally simple manner.
  • the coupling unit also has a further pair of gearwheels with first and second gearwheels which can be coupled to one another and which are operatively connected to the shaft or to the planetary gear, one of which an intermediate gear is used for the operative connection.
  • the use of the intermediate gear enables the direction of rotation to be reversed and thus the direction of movement of the tool slide to be reversed.
  • the speed of the rapid return of the tool slide can be specified by selecting the gear ratio between the intermediate gear and the corresponding gear.
  • the gears of the pair of gearwheels can be coupled to one another via an overload coupling, the overload coupling releasing the coupling of the two gearwheels when an overload occurs during the adjustment of the tool slide . This prevents damage to the gear means when the tool slide is blocked.
  • the gears of the pair of gears are arranged axially one behind the other, a gear being arranged axially adjustable and at a distance from the corresponding gear.
  • both the two gears of the gear pair used for generating the forward movement and the two gears of the gear pair used for generating the rapid return are arranged axially one behind the other, one gear being axially adjustable and spaced apart can be brought to the corresponding gear.
  • the gear wheels can be axially adjusted, for example, by means of a rocker arm.
  • a drive unit is preferably provided, which is arranged in the housing of the device.
  • an air motor or an electric motor can be used.
  • At least two tool slides, each with one cutting plate, are held radially adjustable on the rotating unit. This can further reduce the time for machining a pipe end.
  • the at least double-edged machining enables the cutting inserts to be supported against one another and thus to compensate for the cutting forces that occur. This in turn leads to an improvement in the surface quality of the weld joint.
  • the housing of the device can be axially pretensioned against the action of a spring force at the pipe end.
  • the housing and the shaft with the rotating unit arranged thereon and the tool slide can thereby be preloaded in the axial direction.
  • a spring element is provided, for example a coil spring or a plate spring column.
  • the housing of the device according to the invention is held in an axially adjustable manner on a so-called "mast", which can be fixed to the pipe to be machined via a wedge mechanism known per se.
  • a motor drive is provided for the axial feed movement of the housing.
  • a separate drive motor can be used for this, but it can also be provided that the compressed air or electric motor used to drive the shaft also causes the feed movement of the housing via additional gear means.
  • Figure 1 is a partially sectioned front view of a device for processing pipe ends for producing a weld joint
  • Figure 2 is a sectional view taken along line 2-2 in Figure 1;
  • Figure 3 is a partial sectional view of the device in the area of a coupling unit used;
  • Figure 4 is a sectional view taken along line 4-4 in Figure 3;
  • FIG. 5 an enlarged front view of a partial area of a turning unit used with a tool slide in its starting position
  • FIG. 6 a view in the direction of arrow A from FIG. 5;
  • FIG. 7 shows an enlarged front view corresponding to FIG. 5 with the tool slide in its end position
  • Figure 8 is a sectional view taken along line 8-8 in Figure 5;
  • FIG. 9 a sectional view along the line 9-9 in FIG. 5:
  • FIG. 10 a side view of a copying unit used alternatively in the device with a cutting plate carrier and a cutting plate;
  • Figure 11 a view in the direction of arrow B from Figure 10 and Figure 12: a side view of a further alternative copying unit with the insert holder and insert.
  • a device for machining pipe ends for producing a weld joint shown overall with reference numeral 15, is shown.
  • This comprises a housing 17 with a stepped longitudinal bore 19 and a drive unit 21 with a known only schematically shown in the drawing, known air motor 22, which has a drive shaft 23 with a drive wheel 24 designed as a bevel gear.
  • the longitudinal bore 19 is penetrated by a mast 26 known per se and therefore only shown schematically in the drawing, which, with its free end 27 facing away from the housing 17, dips into a pipe 28 to be machined and a likewise known one, shown only schematically in the drawing Wedge mechanism 29 with three evenly distributed clamping jaws 30 carries.
  • the mast 26 can be inserted into the tube 28 in a conventional manner, and the mast 26 can then be braced on the inside with the tube 28. This bracing is not the subject of the present invention. It is important, however, that the mast 26 is surrounded by a spiral spring 32 adjacent the wedge mechanism 29. against the action of the spiral spring 32, the housing 17 can be axially biased in the direction of the tube 28, as will be explained in more detail below.
  • the mast 26 passes through an axial through-bore of a shaft 36 which is rotatably mounted in the housing 17 by means of ball bearings 34, 35 and which widens in the shape of a truncated cone in the direction of the free end 27 of the mast 26 and carries in this area a bevel gear 38 which meshes with the drive wheel 24 .
  • the shaft 36 On its end face facing the tube 28 to be machined, the shaft 36 carries a rotating unit 42 with the interposition of a ring gear 40, a rear wall 43 of the rotating unit 42 being screwed to the shaft 36 together with the ring gear 40.
  • the shaft 36 is rotated by the compressed air motor 23 due to the engagement of the drive wheel 24 in the bevel gear 38, this results in a rotation of the rotating unit 42 about the longitudinal axis 45 of the shaft 36 outlined in FIG.
  • the ring gear 40 screwed to this is also set in rotation.
  • the rotational movement of the rotating unit 42 and the ring gear 40 is symbolized in FIG. 1 by the arrow 46.
  • the rotating unit 42 comprises an essentially circular-cylindrical central part 48, from which, facing away from one another and oriented transversely to the longitudinal axis 45 of the shaft 36, two identically designed rotating blades 49, 50 protrude.
  • a rotary spindle 55 is rotatably supported by means of ball bearings 52, 53, which carries a bevel gear 57 at its end facing the central part 48.
  • the rotary spindle 55 is displaceable in the rotary wing 49 and 50 arranged tool slide 59, which for this purpose has an internal thread corresponding to the external thread of the rotating spindle 55.
  • the tool slide 59 carries a mounting plate 61 which is formed integrally therewith and which has on its upper side facing away from the rotating spindle 55 a serration 63 aligned parallel to the longitudinal axis 45. This is particularly clear from FIGS. 5 and 7.
  • the receiving plate 61 carries on its underside, at a distance from one another, two holding brackets 65, 66 which accommodate between them a guide rail 67, on which a radially outer and a radially inner end stop 68 and 69 are adjustably held.
  • the rotating wings 49, 50 are essentially U-shaped in that side walls 71, 72 project from the rear wall 43 of the rotating unit 42 in parallel and at a distance from one another, which form a free space between them in which the tool slide 59 is held displaceably.
  • a copying unit 74 is screwed to the rear wall 43 by means of screws 75 between the side walls 71 and 72 of the receiving plate 61 of the tool carriage 59.
  • the copying unit 74 comprises a holding plate 76 which rests on the rear wall 43 and from which a guide plate 77 protrudes vertically.
  • the latter has a through hole in the form of an elongated hole 78, the configuration of the elongated hole 78 corresponding to the shape of the weld joint 80 to be produced. This is shown in dot-dash lines in FIG. Copying units with alternative configurations of the elongated hole 78 in the form of the elongated holes 78a and 78b are shown in FIGS. 10 to 12.
  • a cutting plate carrier 82 On the guide plate 77, a cutting plate carrier 82 is seated, which is essentially U-shaped with two legs 83, 84 aligned parallel to one another, as is particularly clear from FIG. 11.
  • the two legs 83, 84 receive the guide plate 77 of the copying unit 74 between them and are slidably held on the guide plate 77 by means of a guide bolt 85 which extends through the elongated hole 78 of the holding plate 76 and is fixed in through bores of the two legs 83, 84.
  • a cutting plate 87 is held interchangeably on the cutting plate carrier 82 in a manner known per se and therefore not shown in the drawing.
  • the leg 84 of the cutting plate carrier 82 facing the receiving plate 61 of the tool slide 59 has a toothing corresponding to the serration 63 of the receiving plate 61, as in particular from FIGS. 2 and 11 can be seen.
  • the radial movement of the tool carriage 59 is transmitted to the insert holder 82 which is slidably held on the copying unit 74.
  • the insert holder 82 is also moved in the radial direction when the tool slide 59 is moved radially.
  • a movement in the axial direction, ie along the serration 63, is additionally imposed on the insert holder which is held in the axial direction on the tool slide 59. This is evident, for example, from FIG. 9.
  • the elongated hole 78 thus forms, in combination with the guide pin 85, a forced guide for the insert holder 82.
  • the rotary movement of the rotary unit 82 is driven by means of the shaft 36.
  • the tool slide 59 is driven to a radial movement via the shaft 36.
  • the ring gear 40 is used, on the other hand, a planetary gear is arranged in the axial direction between the ring gear 40 and the rotating unit 42 with a ring gear 90 rotatable about the longitudinal axis 45, which has an external toothing 91 and an internal toothing 92, and two the internal toothing 92 of the ring gear 90 rolling planet gears, which are each assigned to the rotating spindle 55 of a rotary wing 49 or 50, only one planet gear 94 being shown in the drawing (FIGS. 1 and 2).
  • Each of the planet gears 94 is seated in a rotationally fixed manner on a planet gear carrier shaft 95 which, at its end facing away from the planet gear 94, carries a bevel gear 96 which is connected to the gel gear 57 meshes, which is rotatably connected to the rotating spindle 55.
  • the rotation of the ring gear 40 caused by the shaft 36 is transmitted to the ring gear 90 of the planetary gear via a coupling unit 98 which is illustrated in particular in FIGS. 3 and 4.
  • This comprises two gear pairs 100, 101, each with a first gear 102 or 103 and a second Gear 105 and 106, respectively.
  • the two gear wheels 102 and 105 and 103 and 106 are each axially aligned with one another, and the first gear wheels 102 and 103 can be displaced in the axial direction by means of an adjusting mechanism explained in more detail below.
  • first and second gear wheels 102, 103 and 105, 106 each carry coupling elements in the form of axially projecting coupling ribs 108, so that a rotational movement of a first gear wheel 102, 103 via the coupling ribs 108 onto the corresponding second gear wheels 105 and 106 can be transferred.
  • the first gear 102 of the gear pair 100 constantly meshes with the ring gear 40 which is rotated by the shaft 36. If this first gear 102 with its coupling ribs 108 bears against the corresponding second gear 105, the rotary movement of the ring gear 40 via the gear pair 100 is applied to the ring gear 90 and from this to the planet gears 94 for driving a forward movement of the tool carriage 59.
  • the first gear 103 is arranged at a distance from the ring gear 40.
  • the rotary movement of the ring gear 40 is transmitted for the gear pair 101 via an intermediate gear 110 which, like the first gear 102, is constantly in engagement with the ring gear 40.
  • the interposition of the intermediate gear 110 causes the direction of rotation of the first gear 103 to be reversed.
  • the direction of rotation of the gears is indicated in FIG. 4 by the arrows R (return) and V (forward).
  • the first gear 103 meshing with the intermediate gear 110 is likewise axially adjustable and can be coupled to the second gear 106 via coupling ribs 108. This meshes constantly with the ring gear 90. However, if the first gear 103 is coupled to the second gear 106 with simultaneous final coupling of the gear pair 100, then the rotation of the ring gear 40 is transmitted to the ring gear 90 in the opposite direction due to the interposition of the intermediate gear 110. This results in the tool carriage 59 returning.
  • the transmission ratio between the first gear 103 and the intermediate gear 110 is selected such that the return movement of the ring gear 90 takes place at a higher speed than the corresponding forward movement.
  • a switching unit 112 is provided, which can also be operated manually via a rocker or shift lever 114 can be actuated automatically by the tool slide 59 via a control disk 116.
  • the rocker arm 114 is pivotably held in the form of a two-armed lever by means of a bearing pin 118 on the coupling unit 98 arranged in a fixed manner on the housing 17, a switching pin 119 assigned to the gear pair 100 on its one arm and a second switching pin 120 assigned to the gear pair 101 on its other arm are articulated.
  • the switching pins 119 and 120 each have a first gear 102 and 103 at their free ends and can be moved in the longitudinal direction by pivoting the rocker arm 114 such that the respective first gears between a coupling position in which they are on the second gears
  • rocker arm 114 can also be brought into a central position (0 position), in which both gear pairs 100 and 101 are decoupled, and the two-arm design of the rocker arm 114 ensures that alternatively only one gear pair 100 or 101 can be coupled, while the other pair of gears is then in its decoupled position.
  • the switching unit 112 can also be actuated using the control disk 116.
  • This is pivotally held on the rotary wing 49 and has in the region of the end stops 68 and 69 of the tool slide 59 a switching cam 122, against which the end stops 68 and 69 abut upon a radial movement of the tool slide 59, so that upon reaching its radially outside and inside end positions of the tool slide 59, the control disk 116 pivots.
  • the latter At its end facing away from the switching cam 122, the latter has a fork-shaped configuration with two switching prongs 123, 124, which can be placed on switching plungers 127, 128 aligned coaxially with the switching pins 119 and 120. This is particularly clear from Figures 5, 7 and 8.
  • the shift prongs 123, 124 each have a button 130 oriented obliquely to the longitudinal axis of the shift plunger in the area of the shift plunger 127, 128, so that the shift plunger 127 and 128 are axially displaced in the direction of the rear wall 43 upon contact with the control disk 116.
  • the free ends of the switching plungers 127, 128 facing away from the control disk 116 are arranged such that they rotate around the circumference 132 or 133 during the rotational movement of the rotary wing 49, as is shown in FIGS. 3, 5 and 7.
  • the inner end stop 69 abuts the switching cam 122 and pivots the control disk 116 in such a way that the switching prong 123 now bears against the Switch plunger 128 abuts so that it is moved in the direction of the rear wall 43. Due to the rotation of the rotary vane 49, the switching plunger 128 runs along the circumference 133 and briefly strikes a switching pin 136 which passes through a bearing sleeve 107 on which the second gear wheel 106 is mounted.
  • the switching pin 136 is arranged co-axially with the second switching pin 120, so that the movement of the switching plunger 128 is finally transmitted to the second switching pin 120, which thereby pivots the rocker arm 114.
  • the length of the switching pin 136 is, however, dimensioned such that the rocker arm is pivoted only so far via the second switching pin 120 that it assumes its neutral position, in which both the gear pair 101 provided for the rapid return and the gear pair 100 used for the advance are used are decoupled. This ensures that after rapid return, the tool slide 59 does not automatically carries out a new preliminary run, but is first stopped.
  • the axial presentation of the device can be done in a known manner by means of hand cranks 139, which are arranged on the end of the mast 26 facing the drive unit 21.
  • the tube 28 can also be turned or overturned by means of the hand crank 139.
  • a further drive for example an additional compressed air or electric motor, for the axial presentation.
  • This can be activated by actuating the switch push 128.
  • This could result in an automatic axial infeed after the rapid return has been carried out in order to then carry out a new advance.
  • the drive unit 21 it would also be conceivable to use the drive unit 21 not only for the continuous radial movement of the tool slide and for the rotary movement of the rotary blades 49 and 50, but also The axial infeed can also be carried out via a separate gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

L'invention concerne un dispositif pour l'usinage d'extrémités de tubes en vue de l'obtention d'un joint de soudage (80), comprenant un support (17) pouvant être fixé sur l'extrémité du tube à usiner, support sur lequel est monté un arbre (36) entraîné en rotation, ainsi qu'un dispositif de rotation (42) monté solidaire en rotation sur l'arbre, muni d'un chariot porte-outil (59) réglable radialement, sur lequel est montée une matrice d'ébavurage (87). L'invention est caractérisée en ce que le chariot porte-outil (59) est réglable en continu en direction radiale, en ce que le réglage radial du chariot (59) est accouplé, via des moyens de transmission, avec le mouvement de rotation de l'arbre (36), et en ce que la matrice d'ébavurage (87) est maintenue réglable sur le chariot porte-outil (59), axialement, parallèlement à l'axe longitudinal de l'arbre (36).
EP00935081A 1999-06-12 2000-05-20 Dispositif pour l'usinage d'extremites de tubes pour l'obtention d'un joint de soudage Withdrawn EP1185389A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19926829A DE19926829A1 (de) 1999-06-12 1999-06-12 Vorrichtung zur Bearbeitung von Rohrenden zur Herstellung einer Schweißfuge
DE19926829 1999-06-12
PCT/EP2000/004583 WO2000076701A1 (fr) 1999-06-12 2000-05-20 Dispositif pour l'usinage d'extremites de tubes pour l'obtention d'un joint de soudage

Publications (1)

Publication Number Publication Date
EP1185389A1 true EP1185389A1 (fr) 2002-03-13

Family

ID=7911030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00935081A Withdrawn EP1185389A1 (fr) 1999-06-12 2000-05-20 Dispositif pour l'usinage d'extremites de tubes pour l'obtention d'un joint de soudage

Country Status (5)

Country Link
US (1) US20020078803A1 (fr)
EP (1) EP1185389A1 (fr)
JP (1) JP2003501277A (fr)
DE (1) DE19926829A1 (fr)
WO (1) WO2000076701A1 (fr)

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JP5374698B2 (ja) * 2009-08-13 2013-12-25 株式会社東立エンジニアリング 薄型切断・開先加工装置
DE102011003536B4 (de) * 2011-02-02 2012-12-20 Wafios Umformtechnik Gmbh Werkzeugkopf zur Bearbeitung eines Endabschnitts eines Werkstücks
US10376963B2 (en) 2015-07-09 2019-08-13 Illinois Tool Works Inc. Pipe end machining device
CN114473069B (zh) * 2022-03-28 2022-12-23 什邡慧丰采油机械有限责任公司 一种阀体倒角专用组合刀具

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US20020078803A1 (en) 2002-06-27
WO2000076701A1 (fr) 2000-12-21
DE19926829A1 (de) 2000-12-14
JP2003501277A (ja) 2003-01-14

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