EP1055488A2 - Dispositif pour l'application d'une force de pressage - Google Patents

Dispositif pour l'application d'une force de pressage Download PDF

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Publication number
EP1055488A2
EP1055488A2 EP00110784A EP00110784A EP1055488A2 EP 1055488 A2 EP1055488 A2 EP 1055488A2 EP 00110784 A EP00110784 A EP 00110784A EP 00110784 A EP00110784 A EP 00110784A EP 1055488 A2 EP1055488 A2 EP 1055488A2
Authority
EP
European Patent Office
Prior art keywords
pressing
housing
drive
unit
advantageously
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
Application number
EP00110784A
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German (de)
English (en)
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EP1055488B1 (fr
EP1055488A3 (fr
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.)
Rems Werk Christian Foell und Soehne GmbH and Co
Original Assignee
Rems Werk Christian Foell und Soehne GmbH and Co
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.)
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Priority claimed from DE19949797A external-priority patent/DE19949797A1/de
Application filed by Rems Werk Christian Foell und Soehne GmbH and Co filed Critical Rems Werk Christian Foell und Soehne GmbH and Co
Publication of EP1055488A2 publication Critical patent/EP1055488A2/fr
Publication of EP1055488A3 publication Critical patent/EP1055488A3/fr
Application granted granted Critical
Publication of EP1055488B1 publication Critical patent/EP1055488B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses

Definitions

  • the invention relates to a device for applying a pressing force according to the preamble of claim 1.
  • a manually operated pressing device is also known, which is similar to a pair of pliers. It has operating arms which pivoted back and forth during the axial pressing process be the one with a chain or a ratchet Press part is moved towards the other press part.
  • This too Device has large dimensions and is unwieldy to use.
  • Another device is known in which the one press part a sliding sleeve is provided on a piece of pipe in the direction on the other press part is movable by means of hydraulic medium.
  • Another pipe section stands vertically from one end of the pipe section through which the hydraulic medium is supplied.
  • To the The free end of this further piece of pipe is the hydraulic hose connected to a hydraulic unit located in the room connected.
  • This further piece of pipe is vertical a handle with which this device can be held.
  • Further pressing devices are designed as sliding tongs, at which press parts in turn perform a pivoting movement, what leads to problems with straight pipes.
  • the invention has for its object the generic device to train in such a way that with structurally simple training and easy handling guarantees perfect pressing is.
  • the device according to the invention is designed as a power tool, in which the housing, the drive element for at least that a press part and the press unit are arranged one behind the other. This results in a structurally simple training. Because of this position of the individual parts can the device according to the invention be compact. In particular, this is also a optimal weight distribution of the device possible, so that during of the pressing process can be carried effortlessly.
  • the device is as Portable tool designed that is convenient for the operator can be worn.
  • the device has a housing 1, the advantage of two detachably connected housing shells consists.
  • the housing 1 can also be made of be composed of more than two housing parts.
  • the housing 1 is approximately pistol-shaped and has an elongated housing part 2, in which a hydraulic part 3 (FIG. 2) of a drive 4 is accommodated is.
  • Below the housing part 2 is one in the axial direction longer housing part 5, in which a mechanical part 6 of the Drive 4 is housed.
  • From the housing part 5 is a handle part 7 from, which is also part of the housing 1 and in which an electrical / electronic Part 8 of the drive 4 is located.
  • the handle part 7 is reset to the housing part 5.
  • the longitudinal axis 9 of the Handle part 7 is at an obtuse angle ⁇ to the longitudinal axis 10 of the housing part 5.
  • the longitudinal axis 10 is in turn parallel to Longitudinal axis 11 of the housing part 2 (Fig. 1).
  • the handle part 7 is a Hollow web 12 upstream, which is approximately parallel to the longitudinal axis 9 of the handle extends and has a distance from it. This will a handle opening 13 is formed between the handle part 7 and the web 12.
  • the web 12 and the handle part 7 go into each other via a cross piece 14 about, which is also designed as a hollow part.
  • the device is preferably on the handle part 7 held, the user, as in Fig. 2 by dashed circles is indicated, the handle part 7 includes.
  • the web 12 protects the hand of the User during the pressing process.
  • Switch 15, which is easy to grasp when gripping the handle 7 Index finger can be pressed to switch on the drive 4.
  • the switch 15 can be designed so that it is during the pressing process must be kept pressed. Once the switch 15 is released, the drive 4 is switched off. But it is also possible to design the switch 15 so that it is switched on drive and pressed a second time to switch it off must become.
  • This embodiment has the advantage that the Operator not constantly during the pressing process Hold switch 15 pressed. Especially in this case the device can also be gripped so that the hand grips the 7th and engages around the web 12, as shown in FIG. 2 by further dashed lines Circles is indicated. To hand in this case a safe one To give support, the housing part 5 and part of the web 12th provided on their side facing away from the grip part 7 with grip recesses 16, so that the fingers find a secure hold on the housing 1.
  • the crosspiece 14 of the housing 1 can be used as a receptacle for at least a battery or a battery.
  • the device can also be operated from the mains. In this case a (not shown) power cord from the housing 1, preferably down out of the crosspiece 14.
  • the electrical / electronic part 8 of the drive 4 saves space housed in the narrow handle part 7.
  • This drive part 6 has one Electric motor 17, the axis 18 parallel to the longitudinal axis 10, advantageous lies in the longitudinal axis.
  • One protruding from the motor housing 19 Motor shaft 20 is with a downstream reduction gear 21 coupled, which is advantageously a planetary gear.
  • the Reduction gear 21 is advantageously designed at least in two stages.
  • the preferred use of a planetary gear as Reduction gear 21 has the advantage that there is little space needed with a high degree of reduction. Therefore the reduction gear can 21 housed extremely space-saving in the housing part 5 become.
  • the longitudinal axis 22 of the reduction gear is advantageously aligned with the longitudinal axis 18 of the motor 17.
  • An output shaft 23 of the reduction gear 21 carries outside a housing 25 of the reduction gear 21 an eccentric 24, on the immediately or with the interposition of an intermediate ring an elliptical ring 26 is supported.
  • the longitudinal axis of this elliptical Ring 26 extends perpendicular to the axis of the output shaft 23 or perpendicular to the plane of the drawing, while the minor axis lies in the drawing plane according to FIG. 2.
  • the eccentric piece 24 or the round ring sitting on it lies vertically on the inner wall portions of the ring 26 extending to the plane of the drawing. If the output shaft 23 is rotated about its axis, the eccentric piece 24 the ring 26 in the direction of the double arrow 27 in FIG. 2 moved up and down in the drawing plane.
  • Such an eccentric drive is known and is therefore not described in detail.
  • the elliptical ring 26 carries a piston 28, which is advantageously in one piece is formed with the ring 26, but also attached to it can.
  • the piston 28 protrudes with play on all sides from the eccentric drive 23, 24, 26 receiving housing 30 in a piston chamber 31, which is advantageous through a hole in a hydraulic block 32 is formed. It is housed in the housing part 2 of the housing 1 and supported on the housing 30 of the eccentric drive 23, 24, 26 and attached to it.
  • In the floor opposite the hydraulic block 32 34 of the memory 33 there is a closable filling opening 35, via which the hydraulic medium is introduced into the reservoir 33 can be.
  • a check valve 36 projects into the memory 33, the one lying perpendicular to the piston chamber 31 bore 37 against closes the memory 33.
  • the smaller flow cross section than the bore 31 having piston 31 opens into the piston chamber 31 at the end facing away from the eccentric drive 23, 24, 26.
  • a feed bore opens into the piston chamber 31 38, which is also provided in the hydraulic block 32 and is vertical to the piston chamber 28 and advantageously in alignment with the bore 37 extends.
  • the hydraulic medium for actuating a pressing part 39 is supplied.
  • the longitudinal axis 85 of the hydraulic block 32 is advantageously in the Longitudinal axis 11 of the housing part 2.
  • the two bores 37, 38 in the hydraulic block 32 are advantageously on the reduction gear 21 facing away from the longitudinal axis 39 of the hydraulic block 32.
  • the piston chamber 31 is in the illustrated embodiment in a transverse central plane of the hydraulic block 32.
  • the piston 28 is guided in a sealed manner in the piston chamber 31 and serves to pass through back and forth movements the hydraulic medium from the Suck in memory 33 and via the feed hole 38 of the press unit 40 feed.
  • the hydraulic block 32 has, as shown in FIG. 3, on that of the accumulator 33 opposite end of a recess 41 into which the pressing unit 40 with an approach 42 is used.
  • the press unit 40 is by grub screws 43 releasably attached in the recess 41 of the hydraulic block 42.
  • the approach 42 is axially penetrated by a bore 44 which with the press unit 40 mounted, an annular groove 87 in flow connection with the supply bore 38 of the hydraulic block 32.
  • the approach 42 is opposite by at least one ring seal 45 sealed the inner wall of the recess 41 of the hydraulic block 32, so that the hydraulic medium from the recess 41 of the Hydraulic block 32 can step outside.
  • the approach 42 stands centrally from a bottom 46 of the press unit 40 from.
  • the bottom 46 is plate-shaped and extends in a perpendicular to the longitudinal axis 85 of the hydraulic block 32 lying level.
  • On his facing away from the handle part 7 or from the web 12 The end is the bottom 46 with a perpendicularly adjoining it Wall 47 connected, preferably integrally formed with it. It connects the floor 46 with one lying parallel to it Wall 48, which is also advantageously formed in one piece with the wall 47 is.
  • the bottom 46 and the two walls 47, 48 are on their 3 above and below the plane of the drawing Ends closed by further walls. All walls are formed in one piece and delimit a centrally located cylinder space 49 (FIGS. 3 and 4), in which a piston 50 is displaceably sealed is.
  • the bottom 46, the walls 47, 48 and the connecting them further walls thus form a housing 51 in which the Cylinder chamber 49 is provided.
  • the housing 51 has, as is Fig. 4 results in rectangular, in particular square outline, in Direction of the axis 52 of the piston 50 seen.
  • the housing 51 carries an immobile on the side facing away from the housing 1 Pressing part 53, which is opposite to the other pressing part 39.
  • the two Press parts 39, 53 are of the same design, but mirror-symmetrical arranged to each other. Therefore, in the following only the press part 39 4 explained in more detail.
  • the pressing part 39 is bow-shaped and has an approximately semi-cylindrical Recording 54 for the workpiece to be pressed.
  • the receptacle 54 is of an approximately semicircular shape in the view according to FIG. 4 Bail 55 limited, two of which are parallel to each other Legs 56, 57 protrude, which are interconnected by a cross bolt 58 are connected.
  • the two legs 56, 57 are over the cross pin 58 with a Connected carriage 59, which has a U-shape in plan view according to FIG. 4. It lies with flat legs 60, 61 on mutually parallel outer sides 62, 63 of the housing 51 flat.
  • the outer sides 62, 63 are provided with an outwardly directed shoulder 64, 65, which corresponding paragraphs 66, 67 on the inside of the legs 60, 61 of the carriage 59 are assigned.
  • Paragraphs 64, 65; 66, 67 extend over the length of the outer sides 62, 63 and the Legs 60, 61. The paragraphs ensure that the carriage 59 can not be deducted from the housing 51 transversely to the paragraphs can.
  • the web 68 of the carriage connecting the two legs 60, 61 59 rests on the wall 48 of the housing 51. Is half width from the web 68 an extension 69 on the side facing away from the housing 51 Side that between the two legs 56, 57 of the pressing part 39th engages and which is penetrated by the cross pin 58.
  • the legs 56, 57 lie on the outer sides of the extension 69. Also lie the end faces 70, 71 of the two legs 56, 57 on the web 68 of the Carriage 59 on. This is a tilting or tilting of the Pressed part 39 against the carriage 59 excluded.
  • the two legs 60, 61 of the carriage 59 almost extend over the entire length of the housing 51. It is on its the wall 47 opposite side open. It is shaped by a plate Carrier 72 (Fig. 3) closed, the free ends of the Legs 60, 61 connects to each other and on which the piston 50 is attached. For weight reasons, it is designed as a hollow body, which is closed at one end by the carrier 72.
  • the walls 46, 62, 63 of the housing 51 delimit one with their free ends Recess 73, into which the carrier 72 with the piston 50 retracted intervenes (Fig. 3). In this position, the carrier 72 hits the ground 74 of the recess 73.
  • Actuatable piston surface 75 has in this position still distance from the floor 76 of the cylinder chamber 49. This ensures that the hydraulic medium even when fully retracted Piston 50 can reach the piston surface 75.
  • Fig. 3 shows the starting position of the pressing part 39, in which it is the greatest distance from the opposite Press part 53 has, in contrast to the press part 39 rigid, preferably integrally formed with the piston housing 51 is.
  • the pressing part 39 is pressed against the pressing part 53 moves.
  • the carriage 59 ensures a flawless, in particular tilt-free guidance of the pressing part 39 on the piston housing 51.
  • the two brackets 55 of the pressing parts 39, 53 are on each other facing sides with a stiffener 78, 79, which itself extends almost over the entire circumference of the bracket 55 and the from the temple ends in the direction of the approach 69 increases steadily.
  • the stiffeners 78, 79 perpendicular to the direction of displacement of the pressing part 39 seen (Fig. 3) triangular Outline. Because of these stiffeners 78.79 can very high press forces be applied without the risk that the bracket 55 of the pressed parts 39, 53 are deformed inadmissibly.
  • connection from the bore into the cylinder chamber 49 is made by a further bore 81 which extends from the outside of the wall 46 of the Piston housing 51 acts into the cylinder chamber 49. So you can this bore 81 through a simple manufacturing process produce.
  • the bore is against the outside of the housing wall 46 81, which crosses the bore perpendicular to it, closed.
  • the pressing unit 40 can be rotated about the axis 82 of its shoulder 42.
  • the cylindrical extension 42 is on the outside with an annular groove 83 into which the set screws 43 engage.
  • the pressing unit 40 is secured against being lifted off the housing 1, but can be rotated continuously about axis 82. This has the Advantage that the press parts 39, 53 for the pressing process in each optimal location can be brought.
  • the pressing part 39 is advantageously located in its initial position shown in FIGS. 2 and 3.
  • the two brackets 55 of the pressing parts 39, 53 are parallel to each other.
  • an axial pressing technique is carried out is known.
  • a press ring and a Squeeze ring pushed over a tube into which a support sleeve is inserted becomes.
  • the press ring is now axial with the help of the press unit 40 over the crimp ring up to a stop on the support sleeve (fitting) pressed. This axial displacement of the press ring takes place radial compression.
  • the tube is thus in the two pressed parts 39, 53 inserted that the press ring to be moved between the two pressing parts 39, 53 is arranged and with one end on Press part 39 abuts.
  • the fork 55 of the pressing part 39 takes Press ring with and moves it over the one on the pipe Squeeze ring until the press ring comes to rest on the support sleeve.
  • the support sleeve was supported axially on the fork 55 of the pressed part 53 from.
  • the motor 15 is switched 17 switched on.
  • the high speed of the motor shaft 20 is due to the reduction gear 21 in a correspondingly low speed the drive shaft 23 of the reduction gear 21 implemented.
  • the eccentric piece 24 seated on the output shaft 23 leads here an eccentric movement.
  • the elliptical ring 26 is shown here in Arrow direction 27 (Fig. 2) moves up and down, whereby the piston 28th in the piston chamber 31 of the hydraulic block 32 accordingly and is moved.
  • the piston 29 moves out of position Fig. 2 down, it sucks through the check valve 36 and the Bore 37 hydraulic medium from the reservoir 33.
  • the motor 17 is advantageously switched off automatically.
  • the switch-off time can be determined simply by the fact that in the stop position of the press ring on the support sleeve for further displacement of the pressing part 39 required pressure increases suddenly, so that this pressure rise is detected and to shut off the engine 17 is used.
  • the pressure increases (Not shown) pressure relief valve opened, so that Hydraulic medium from the piston chamber 49 via a (not shown) Return hole flows back to the memory 33. This Backflow process is triggered in that the piston 50 through 3 pushed back into its initial position becomes.
  • the device described is extremely compact and above all light weight.
  • the housing 1 with the inside accommodated drive, the piston 50 and the pressing part 39, seen transversely to the direction of movement of the pressing part 39, one behind the other. This results in a compact design and in particular an optimal weight distribution of the device. she is not top-heavy designed so that they can be used by the user during the pressing process and can be held comfortably afterwards.
  • the device ensures easy handling.
  • the coupling piece in the form of the extension 42 ensures an optimal Connection to the hydraulic block 32, especially in the approach 42 die Bore 44 is provided, which after the coupling process with the bore 38 provided in hydraulic block 32 via annular groove 87 comes into line connection. Therefore there are no hoses or Pipes as connecting pieces necessary to the hydraulic medium to promote from memory 33 to press unit 40. Rather, the Delivery of the hydraulic medium exclusively within the Device provided holes, so that the problem of Leaks are at least reduced. Since the device is not external Has hoses and the like, the pressing process considerably simplified since the user does not have to worry about connecting hoses lying around must pay attention.
  • the piston 50 lies transverse to the axis 82 of the shoulder 42. This too Location gives an excellent weight distribution, which leads to an optimal Handling of the device leads.
  • the press unit 40 Since the press unit 40 is rotatable, it can be in place on the parts to be pressed adapted by appropriate rotary movement become. So can already be assembled with the press unit 40 Pipes and the like are pressed, in such cases the press unit 40 simply to the position of the assembled pipes and the like can be adjusted.
  • An essential feature of the device is the fact that the Press unit 40 is rotatable about the axis 82 of the neck 42.
  • Advantageous axis 82 lies at least approximately in a plane of symmetry the pressing unit 40, based on the starting position shown in FIG. 3 of the press part 39. This changes the weight distribution when turning the press unit 40 not or only insignificantly. Therefore, the device can be in any position of the pressing unit 40 are kept optimal.
  • the axis 82 of the extension 42 is preferably in the axis 85 of the Hydraulic block 32, which in turn advantageously with the longitudinal axis 11th of the housing part 2 holds together. This will make an excellent one Weight distribution achieved for easy handling the device during the pressing process.
  • Fig. 5 shows an embodiment in which with the pressed parts Press unit a radial pressing is made.
  • the two press parts 39, 53 of the press unit 40 are covered to the previous embodiment, rotated by 90 ° to one another, so that the receptacles 54 of their two forks 55 against each other are directed.
  • 5 shows the end position of the press part 39, in which his fork on the fork 55 of the device-fixed press part 53 is present.
  • the pressing part 39 is in accordance with the previous embodiment firmly connected to the carriage, of which in Fig. 5 Carrier 72 can be seen, which carries the piston 50. For the rest is this device is of the same design as the previous embodiment.
  • This embodiment also has the same advantages as in the previous embodiment.
  • the two exemplary embodiments are each designed as electrohydraulic tools, in which the one pressing part 39 is displaced by acting on the piston 50 by means of hydraulic medium.
  • the Adjustment of the press part 39 can also be done mechanically, for example via a spindle drive.
  • a spindle drive In this case there is a hydraulic medium not mandatory.
  • the motor 17 drives in this case Reduction gear 21 on the spindle drive through which the pressed part 39 is moved relative to the other pressing part 53.
  • FIGS. 6 to 8 show a device corresponding to the preceding Embodiments also as electrohydraulic, portable tool is formed.
  • the pressing unit 40 With the two press parts 39, 53 the pressing unit 40 is subjected to an axial pressing.
  • the The pressing parts 39, 53 are driven in the same manner as in the embodiment 1 to 4.
  • the press unit 40 has the approach 42, which engages in the recess 41 of the hydraulic block 32.
  • the piston 50 is displaceable in the housing 51 of the pressing unit 40, the, as described with reference to the embodiment of FIGS. 1 to 4 has been displaced by hydraulic medium.
  • the pressing parts 39, 53 are as in the previous embodiments exchangeably held in corresponding receptacles 88, 89. she have cylindrical receiving spaces 90, 91, the cylindrical pin 92, 93 of the pressed parts 39, 53 take a positive fit.
  • the pins 92, 93 are each provided with an annular groove 94 lying in a radial plane, 95 provided, in the locking elements 96, 97, preferably locking balls, intervention. They are each under the force of a helical compression spring 98, 99 in a transverse bore 100, 101 of the recordings 88, 89 is housed.
  • To secure the locking element 96, 97 are the cross holes 100, 101 by a stud 102, 103 closed.
  • the pressed parts 39, 53 lie with a base body 104, 105 on the front side 106, 107 of the receptacles 88, 89.
  • the pressing parts 39, 53 are advantageously formed in one piece. Since the Pins 92, 93 of the pressed parts 39, 53 have a cylindrical shape, let them compared to conventional pressed parts simple and inexpensive manufacture. With conventional pressed parts, there is a plug-in attachment from a rectangular one adjoining the base body Neck part and an adjoining cylindrical neck part. As a result, the production of such pressed parts is complex and expensive.
  • the ring grooves 94, 95 can also be simple and inexpensive attach to pin 92, 93. It is also advantageous that the locking elements not, as in the conventional pressed parts, in the pressed parts itself, but housed in the tool-side receptacles 88, 89 are.
  • the receptacles 88, 89 with supports 108, 109 are advantageous for the pressing parts 39, 53 provided.
  • the supports 108, 109 are on the recordings 88, 89 provided that the pressing parts 39, 53 under the reaction force occurring during the pressing process on these supports be supported. This results in a favorable power transmission during the pressing process.
  • the supports 108, 109 are advantageously formed in a strip shape and are above the Front 106, 107 of the recordings 88, 89 in front.
  • the press parts 39, 53 lie with their base bodies 104, 105 on the supports 108, 109, which is advantageously formed in one piece with the receptacle 88, 89 are.
  • the receptacles 88, 89 can be used Insert workpieces, different sized press parts 39, 53.
  • the pins 92, 93 are relatively short, so that the pressed parts 39, 53 have a compact design, which also means a results in favorable power absorption and power transmission.
  • the pins 92, 93 are eccentric with respect to the base body 104, 105 are provided.
  • the distances 110, 111 (Fig. 6) between the Axis 112 of the pins 92, 93 and the opposite one another Outer sides 113, 114 of the base bodies 104, 105 of the pressed parts 39, 53 are different. This has the advantage that the pressed parts 39, 53 cannot be inserted in the receptacles 88, 89 in the opposite direction.
  • the pressing parts 39, 53 are otherwise the same as in the Embodiment according to FIGS. 1 to 4.
  • the axially to be pressed together Workpieces are in the manner described in the Pressed parts 39, 53 inserted. Then by pressing the Switch 15 (Fig. 1 and 2) of the motor 17 (Fig. 2) turned on, whereby the two press parts 39, 53 are moved relative to one another, the axial pressing process taking place.
  • the axis 82 of the extension 42 by the maximum adjustment range of the press part 39.
  • the two Press parts 39, 53 are at least partially on both sides of the Axis 82 of the neck 42, which results in an optimal weight distribution results.
  • a pipe expander 115 can be connected to the press unit 40 become. It has a housing 116 (Fig. 7) that is open at both ends is and in which an expanding mandrel 117 housed in a known manner is.
  • the housing 116 has on its facing the press unit 40 Side a radially outward flange 118, with which the tube expander 115 releasably attached to the press unit 40 can be.
  • the axis of the pipe expander 115 coincides with the axis of the piston 50 together.
  • expansion segments 120 On the end of the housing 116 facing away from the pressing unit 40 a nut 119 is screwed, which contains expansion segments 120. How 8 shows, six expansion segments 120 are provided, which at retracted expanding mandrel 117 with their side faces together. The widening segments 120 engage with those projecting radially outwards Web 121 in an annular space 122, the inside the mother 119 is provided. The annular space 122 is radially wide enough that the expansion segments 120 are sufficient during the expansion process can be moved radially outwards. In the annulus 122, the expansion segments 120 are axially secured.
  • Fig. 7 shows the expanding mandrel 117 in its retracted in the upper half Location in which the expansion segments 120 in a known manner lie together.
  • the lower half in Fig. 7 shows the expanding mandrel 117 in its extended position.
  • the expansion segments 120 are move radially outwards when expanding mandrel 117, whereby the tube plugged onto the expansion segments 120 is expanded radially becomes.
  • the expansion segments 120 are each on the inside a cone surface 123 with which the expansion segments 120 rest on the conical expanding mandrel 117.
  • the expansion segments are on the outside 120 in a known manner with partial cylinder surfaces 124 provided that during the expansion process on the inside of the pipe to be expanded.
  • the expanding mandrel 117 also stands advantageous under spring force, so that when the piston moves back 50 also pushed the expanding mandrel 117 back into its starting position becomes.
  • the expansion segments 120 are also under spring force, so that the expanding segments when retracting the expanding mandrel 117 are moved together radially.
  • the tube is removed and placed on one Support sleeve of a fitting pushed into the corresponding press part 39, 53 is placed.
  • the other press part is the one with the fitting compression sleeve to be pressed, already pushed onto the tube placed. It is with the press unit in the manner described the widened pipe end located on the support sleeve axially pressed on.
  • the housing 116 of the pipe expander 115 nuts 119 with corresponding Expanding segments 120 are screwed. Furthermore if the tube expander 115 not required, detach from the press unit 40 at any time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Press Drives And Press Lines (AREA)
EP00110784A 1999-05-28 2000-05-20 Dispositif pour l'application d'une force de pressage Revoked EP1055488B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19924509 1999-05-28
DE19924509 1999-05-28
DE19949797 1999-10-15
DE19949797A DE19949797A1 (de) 1999-05-28 1999-10-15 Vorrichtung zum Aufbringen einer Presskraft

Publications (3)

Publication Number Publication Date
EP1055488A2 true EP1055488A2 (fr) 2000-11-29
EP1055488A3 EP1055488A3 (fr) 2004-08-18
EP1055488B1 EP1055488B1 (fr) 2007-08-08

Family

ID=26053563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110784A Revoked EP1055488B1 (fr) 1999-05-28 2000-05-20 Dispositif pour l'application d'une force de pressage

Country Status (4)

Country Link
US (1) US6415641B1 (fr)
EP (1) EP1055488B1 (fr)
DE (1) DE50014538D1 (fr)
ES (1) ES2288816T3 (fr)

Cited By (7)

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DE102008007303A1 (de) * 2008-02-02 2009-08-06 Wezag Gmbh Werkzeugfabrik Spreizzange
FR2962777A1 (fr) * 2010-07-19 2012-01-20 Peugeot Citroen Automobiles Sa Pince pour inserer ou retirer l'axe d'une charniere
WO2014086464A1 (fr) * 2012-12-07 2014-06-12 Rehau Ag + Co Dispositif formant outil permettant de raccorder un tuyau en matière plastique ou un tuyau composé de métal et de matière plastique à un raccord au moyen d'un manchon coulissant ou presseur
DE202014001763U1 (de) 2014-02-28 2015-05-29 Joiner's Bench Gmbh Werkzeug zur zerspanenden Bearbeitung eines Rohrelements an einem Ende, Werkzeuganordnung
WO2017025379A1 (fr) * 2015-08-10 2017-02-16 Gustav Klauke Gmbh Dispositif pour appliquer une force de pressage et paire de mâchoires de pressage
WO2022111998A1 (fr) * 2020-11-27 2022-06-02 Hilti Aktiengesellschaft Engrenage excentrique pour machine-outil
US12343855B2 (en) 2020-11-30 2025-07-01 Hilti Aktiengesellschaft Spring element and coupling device

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Publication number Priority date Publication date Assignee Title
DE10216213A1 (de) * 2002-04-10 2003-10-23 Klauke Gmbh Gustav Elektrohydraulisches Verpressgerät und Verfahren zum Betreiben desselben
US6668613B2 (en) * 2002-04-09 2003-12-30 Fci Americas Technology, Inc. Hydraulic compression tool and hydraulic compression tool motor
US7251980B2 (en) * 2005-04-13 2007-08-07 Latchtool Group Llc Hydraulically powered gripping tool
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WO2017025379A1 (fr) * 2015-08-10 2017-02-16 Gustav Klauke Gmbh Dispositif pour appliquer une force de pressage et paire de mâchoires de pressage
US10888915B2 (en) 2015-08-10 2021-01-12 Gustav Klauke Gmbh Device for applying a pressing force, and a pair of pressing jaws
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Also Published As

Publication number Publication date
EP1055488B1 (fr) 2007-08-08
EP1055488A3 (fr) 2004-08-18
DE50014538D1 (de) 2007-09-20
US6415641B1 (en) 2002-07-09
ES2288816T3 (es) 2008-02-01

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