EP0860222A2 - Presse et procédé pour le stockage des données de déplacement ou du déplacement résiduel de la presse - Google Patents

Presse et procédé pour le stockage des données de déplacement ou du déplacement résiduel de la presse Download PDF

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Publication number
EP0860222A2
EP0860222A2 EP97114625A EP97114625A EP0860222A2 EP 0860222 A2 EP0860222 A2 EP 0860222A2 EP 97114625 A EP97114625 A EP 97114625A EP 97114625 A EP97114625 A EP 97114625A EP 0860222 A2 EP0860222 A2 EP 0860222A2
Authority
EP
European Patent Office
Prior art keywords
press
path
pressing
tool
stored
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
EP97114625A
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German (de)
English (en)
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EP0860222A3 (fr
EP0860222B1 (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.)
Novopress GmbH Pressen und Presswerkzeuge and Co KG
Original Assignee
Novopress GmbH Pressen und Presswerkzeuge and Co KG
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Filing date
Publication date
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Publication of EP0860222A2 publication Critical patent/EP0860222A2/fr
Publication of EP0860222A3 publication Critical patent/EP0860222A3/fr
Application granted granted Critical
Publication of EP0860222B1 publication Critical patent/EP0860222B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49909—Securing cup or tube between axially extending concentric annuli
    • Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53004—Means to assemble or disassemble with means to regulate operation by use of templet, tape, card or other replaceable information supply
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53004—Means to assemble or disassemble with means to regulate operation by use of templet, tape, card or other replaceable information supply
    • Y10T29/53009—Means to assemble or disassemble with means to regulate operation by use of templet, tape, card or other replaceable information supply with comparator
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
    • Y10T29/53061—Responsive to work or work-related machine element
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53087—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer

Definitions

  • the invention relates to a pressing device for connecting workpieces, with a press tool and a motor drive for actuating the pressing tool via a pressing path and with belongs to a control device and with a storage device.
  • the invention further relates to a method for Storage of the pressing path or the remaining pressing path in the pressing device.
  • the pressing is done with the help of pressing devices like the one below in various embodiments, for example in the DE-C-21 3782, DE-A-34 23 283, EP-A-0 451 806, EP-B-0 361 630 and DE-U-296 04 276.5 are known.
  • the presses have one Press tool with at least two or even more Press jaws that are used radially inward during the pressing process Formation of a substantially closed press room moves will.
  • the pressing tool is interchangeable on the rest Part of the pressing device attached so that one to each Suitable press tool diameter used for the press fitting can be.
  • the Drive for the movement of the press jaws provided that additionally with a hydraulic unit can be combined.
  • the Drive back a pressing path that usually started with one Free travel begins until the press jaws on the press fitting come to the plant.
  • the deformation follows on the further pressing path of the press fitting and the pipe end up to a final press position.
  • the drive is switched off automatically it in the form of a force limiting element, for example a torque clutch or a hydraulic switching valve, be it through a limit switch in conjunction with a Jaw closing sensor on the pressing tool (DE-U-296 02 240.3).
  • the invention has for its object a pressing device type mentioned so that the drive more reliable switched off in the intended final pressing position becomes. Another object is to provide a method that supports the above objective.
  • the press device itself is concerned Task solved in that the press path in the Storage device is storable or stored and that the control device is a path detection device which cooperates with the storage device in such a way that the drive is switched off when the end of the press path is reached becomes.
  • the pressing device has a position sensor for detection has a reference point on the press path that in the Storage device from the reference point to the end of the press path extending residual press path storable or stored and that the control device is a path detection device has that with the position sensor and the storage device cooperates such that the drive is switched off when the end of the pressing path is reached.
  • the basic idea of the invention is therefore not the most Pressing adjusting geometry of the press jaw contour to scan a jaw lock sensor, but the entire one Press path or the last part of the press path from a reference point on the pressing device and then save the drive Switch off traversing the saved route. It has shown, that this sets the switch-off point very precisely can be, especially if both for the storage device as well as electrical for the path detection device or electronic components are used.
  • the storability also opens up the possibility to everyone Press tool or any combination of press tool and drive an individually suitable value for the press path or to save the remaining press path after making one Calibration as described below. This will any existing tolerances during manufacture in particular of the press tool switched off.
  • positioners can be used, such as those resulting from the DE-U-296 02 240.3 or DE-U-237 03 052.3 result. They are then expediently on the pressing tool itself and advantageously there close to two faces of the press jaws of the Press tool arranged. In contrast to the ones described above However, they are sensors according to the present invention set so that it reaches the final pressing position generate a signal which the path detection device activated for tracing the stored remaining press path.
  • the reference point should be in the second half of the press path and in particular close to the end press position be provided.
  • the storage device there is the possibility of the storage device to be provided in the area of the control device for the drive.
  • the path detection device is expediently in the area arranged of the drive, for example as a revolution counter. As far as the entire press path should be saved, should a starting sensor to record the initial position of the Press tool may be provided.
  • a manually operable switch assembly For the selection of the respective press path or residual press path can be provided a manually operable switch assembly be.
  • an actual value sensor for the Detect a physical quantity, which with correlates the compression resistance, the one at a certain Point of the press travel actual value taken as a criterion used for the selection of the press path or residual press path becomes.
  • the selection of the press path or residual press path is done in this case automatically according to the detected compression resistance at a specific location the press path.
  • physical quantities, which with the compression resistance correlate, especially come Speed of the drive, the pressing force to be applied, the one to be applied Torque and / or the drive supplied electric current in question.
  • the control device has a drive control device, via which a calibration process can be carried out in such a way is that the pressing tool with a predetermined force up to an end position can be moved and the pressing path or the remaining press path is determined via the path detection device and then stored in the storage device.
  • the calibration process should be repeatable and the stored value for the press path or residual press path through the the value determined during the repetition are overwritten.
  • an automatic Calibration process on the pressing device itself to submit the connected press tool for the first time or re-calibrate to creep To compensate for changes such as wear.
  • To store the press path or the remaining press path is a Proposed method in which the press tool with a predetermined force is moved to an end position and the press path or the remaining press path is recorded and then into the Storage device is stored. Every press tool receives an associated press path or residual press path, which causes the drive to switch off when pressed becomes.
  • the calibration should preferably be done in such a way that the process of the pressing tool several times in succession carried out and thereby the press path or residual press path is detected, such a press path or residual press path being stored which is different from the press path or residual press path, which was recorded immediately before or after, differs less than from the initially determined pressing path or remaining press path. Only then should a press path be preferred or remaining press path if the difference to the pressing path or immediately recorded before or after Residual press travel is at least 50% less than that at the beginning determined press path or residual press path. With the above In terms of procedure, signs of settlement appearing at the first or second process of the press tool, eliminated become, d. H. only then should the press path or residual press path be saved when there are practically no differences more between two calibration processes.
  • the method described above can also be modified in such a way that the pressing tool while pressing workpieces with a certain compression resistance up to the end position is moved and that then at least one further value for the press travel or remaining press travel stored which corresponds to another compression resistance.
  • the further value (s) on the Based on the first stored value because in general the relationships with different compression resistances due to different materials and Wall thicknesses can be calculated for the workpieces to be pressed are. However, there is also the possibility that the or the other value (s) under compression of workpieces of different Compression resistance is determined or will.
  • press path or the residual press path for the implementation of the invention is not necessarily directly understood must become. It can also correlate physical Sizes are measured and stored, such as the pressing time or remaining pressing time. The latter essentially correspond to a particular pressing device the press path or residual press path and can therefore also be used.
  • the pressing device 1 shown in Figures 1 to 3 is in two parts constructed and consists essentially of a drive part 2 and a pressing tool 3. Both are over one Coupling bolts 4 connected to one another in an articulated manner.
  • An electric drive motor is located in the drive part 2 5 with a drive shaft 6, which is in a bearing 7 is stored.
  • a drive pinion 8 is arranged at the free end, that meshes with a gear 9, which is on an intermediate shaft 10 sits.
  • the intermediate shaft 10 is in the bearings 11 and 12 rotatably mounted. It carries a pinion 13, which meshes with a gear 14, the part of a spindle nut 15 is.
  • the spindle nut 15 is axially immovable in the bearings 16, 17 stored.
  • the spindle nut 15 is one Spindle 18 passes through, the drive motor 5 removed lying end is provided with a clevis 19.
  • Spindle nut 15 and spindle 18 mesh in such a way that at Rotation of the spindle nut 15 an axial displacement of the Spindle 18 is effected.
  • the spindle 18 becomes non-rotatable guided.
  • two drive rollers 20, 21 are free rotatably mounted.
  • the drive rollers 20, 21 are located on the circumference to each other.
  • the drive shaft 6 also protrudes at the rear end of the drive motor 5 out and is also stored there in a bearing 22. It carries a speed sensor 23 over its scope magnets 24 are distributed at equal intervals.
  • the speed sensor 23, a speed sensor 25 is arranged opposite the device, the magnetic fields emanating from the magnets 24 is able to detect and send appropriate signals to a here only schematically shown control device 26.
  • the signals are counted there, with the number determined the number of revolutions and thus that of the spindle 18 or the fork head 19 corresponds to the distance traveled. Of the there is also a time interval between two signals a measure of the instantaneous speed of the drive motor 5.
  • the drive part 2 has a housing 27 which is the pressing tool 3 down into a holding fork 28 with two congruent Fork arms 29, 30 that leak such a distance have that the clevis 19 can move between them.
  • the front fork arm 29 is omitted in FIG. 3.
  • the pressing tool 3 shown in Figures 2 and 3 has two congruent support plates arranged one behind the other on, of which here only the front-side support plate 31 see is. Both support plates 31 have the same T-shape and project into the space with their drive-side areas between the fork arms 29, 30 and sit there on the coupling pin 4.
  • the support plates 31 are spaced to each other and are connected to one another via bearing bolts 32, 33.
  • a press jaw lever sits on each of the bearing bolts 32, 33 34, 35 - the press jaw lever 34 is omitted in Figure 2 - Which are mirror images and also assume a position in the mirror.
  • the press jaw levers 34, 35 have drive arms 36, 37 going to drive part 2 and upward cheek arms 38, 39.
  • the drive arms 36, 37 have drive surfaces 40, 41, which during a pressing process cooperate with the drive rollers 20, 21.
  • the cheek arms 38, 39 have on opposite sides semicircular recesses molded into the contour of press jaws 42, 43.
  • a pressing process is - starting from that shown in Figure 2 Position - initiated by the drive motor 5 by means of an on / off switch that can be operated from the outside is set.
  • the rotary motion emanating from it is in the Spindle nut 15 in a sliding movement of the spindle 18th implemented, in such a way that the clevis 19 in Direction is moved to the pressing tool 3.
  • FIG 3 shows the final pressing position in which the drive rollers 20, 21 are maximally extended and the end faces of the cheek arms 38, 39 have come to rest (in Figure 3 are Press fitting 45 and pipe end 44 not shown).
  • the control device 26 works with a limit switch 47 together, which is arranged on the outside of the fork arm 29 is.
  • the limit switch 47 has a switch arm 48 which with an actuating projection 49 on the drive arm 37 of the press jaw lever 35 cooperates.
  • the actuation projection 49 presses the switch arm 48 in the open position shown in Figure 2 the press jaw lever 34, 35 in a position in which he the control device 26 signals that the press jaw lever 34, 35 in the initial position, i.e. H. Open position are located.
  • the control device can 26 a distance measurement via the speed sensor 23 and the speed sensor 25. Instead of a distance measurement can also a time measurement can be initiated.
  • the drive part 2 of the pressing device 1 can be via the coupling bolt 4 - it is removable - with different sizes can be equipped by pressing tools 3. So that the control device 26 can recognize the type and size of the press tool 3, the pressing tool 3 has a coding, namely in the form of an electrical resistor 50, which in a circuit 51 sits. The resistor 50 can on one protected location of the pressing tool 3 may be arranged. Of the in the press tool 3 contained part of the circuit 51 sets itself via spring contacts 52, 53 up to here only as a block symbolized control device 26 continues.
  • the resistor 50 has one for the respective pressing tool 3 specific resistance value. With a resistance measurement the pressing tool 3 can thus be identified. The resistance measurement takes place with conventional analog-digital converters.
  • a jaw closing sensor is located in the circuit 51 54, which is arranged in the right press jaw lever 35. He has a blind bore 55 which leads to the left press jaw lever 34 is open. A tappet 56 is horizontal in the blind bore 55 slidably mounted. It is over a compression spring 57 with one aimed at the left press jaw lever 34 Force applied.
  • the plunger 56 is in two spaced ring webs 58, 59 in the blind bore 55 out and ends in an electrically insulating Rubber piece 60. In the space between the A contact screw 61 projects into the two ring webs 58, 59. Both the plunger 56 and the contact screw 61 are Part of circuit 51.
  • a second resistor can be installed, the value of which clearly differs from resistor 50. In this way becomes a signal confusion with the signal of the jaw closing sensor 54 avoided.
  • FIG. 4 shows part of the control device 26, essentially those by the dashed box marked drive control device 62.
  • core of the drive control device 62 is a microprocessor 63. It is assigned to it is the drive motor 5 with the speed sensor 25, from which a line 64 goes into the microprocessor 63.
  • the Drive motor 5 is powered by a voltage supply line 65 fed, which can be connected to the operating network.
  • the voltage supply line 65 is followed by a shutdown element 66, a power control element 67 - here in Form of a triac to reduce performance by phase control - and a motor reversal element 68 for Purpose of determining the direction of rotation.
  • the limit switch 66 are via a line 69, the power control element 67 via a Line 70 and motor reversing element 68 via line 71 electrically connected to the microprocessor 63.
  • the microprocessor 63 Via a line 72, the microprocessor 63 is connected to a manually operated on / off switch 73, via which the drive motor 5 can be started by means of the microprocessor 63 can.
  • the second line 74 is already connected to FIG. 2 described limit switch 47 for the detection of the initial position the pressing tool 3.
  • the microprocessor 63 becomes specific submitted specifications. For one, this is the coding of the Press tool 3 via the resistor 50. On the other hand, this is the jaw closing sensor 54. In addition, there is a selector switch 76 provided, over the manually determined boundary conditions for the work of the drive control device 62 can be predetermined can.
  • setpoint curves - can also be referred to as characteristic curves - for example in the form of functions or points for the speed curve saved via the press path. Every setpoint course is specific to a particular press tool 3. At Connection of a specific press tool 3 is through the The above-mentioned check of the resistance 50 is the appropriate one Setpoint curve selected. This setpoint curve is determining for the control of the drive motor 5 via the Power control element 67.
  • the speed sensor 23, the speed sensor 25 and the associated Line 64 belongs to the control loop of a follow-up control, their command variable the respective setpoint curve and their Control variable are the speed. Of the aforementioned elements becomes a corresponding to the speed of the drive motor 5 Given signal to the microprocessor 63, in which then this Signal is processed.
  • a comparison device of the Microprocessor 63 is checked whether the actual speed value within the control limits of a control corridor and thus within of the permitted range or outside. In the former The case remains with the phase angle specification of the power control element 67 and thus in the performance target. In the latter case, the leading edge is cut by a certain one Amount changed, so that the performance target is reduced if the speed is too high, and increased if the speed is too low.
  • the scheme is designed so that the one described above Control process under normal conditions for a return the actual speed value in the control corridor and if possible leads in the middle area. But will be compared with the next one found that the actual speed value is still outside of the control corridor, there must be a fault.
  • Such faults can, for example, compress one not suitable press fittings, one not completely in the Press fitting inserted pipe end, a break in the drive chain between drive motor 5 and press jaws 42, 43 or a blockage due to jammed Foreign parts or wrinkling on the press fitting 45.
  • Microprocessor 63 then emits a signal which, depending on Art the detected disturbance via line 69 to the limit switch 66 with the result that the drive motor 5 is switched off, and / or via a line 77 to a display 78 is given where the disturbance is appropriately visualized becomes.
  • the control process described above, for a follow-up control is characteristic, be clearer from FIG. 5 made.
  • the ordinate means the speed of the drive motor 5 and the abscissa the press travel.
  • the at Continuous curve 79 starting from zero shows the schematic Speed curve for a specific press tool 3 below Normal condition. It then essentially corresponds to the associated one stored setpoint history.
  • the press path is in a series of sections of equal width - exemplary with 80 designated - divided. At the section boundaries - exemplary designated 81 - is a target-actual comparison in this regard made whether curve 79 is still within of a permissible control corridor - designated 82 by way of example - located. This is consistent with curve 79 the case.
  • the control corridors 82 are on the top and bottom by changing from section 80 to section 80 upper and lower control limit values - designated 83 and 84, for example - limited. Form all upper control limit values 83 together an upper control limit curve, while the lower Control limit values 84 taken together form a lower control limit curve represent. It is understood that the Division of the press path into sections 80 in the microprocessor 63 is many times finer, so that an actual-target comparison is carried out correspondingly more often.
  • the curve section 86 is typical of a blockage because the Speed goes steeply towards zero. For example, can have a blocking effect a foreign part that moves between the Parts of the pressing tool 3 has come. A similar drop in speed shows curve section 87, but here in End area of the press path. This shows wrinkling the outside of the press fitting 45.
  • the steeply rising curve section 88 is characteristic for a non-blocking break. There is no resistance If there is more, the speed increases suddenly.
  • curve shape according to curve section 89 arises when a press fitting that is too small for the press tool 3 in question is pressed. The resistance is then so low that the Speed leaves the control corridor 82 upwards and also no longer returned by readjusting the phase angle can be. A similar speed curve then arises a, if the pipe 44 is insufficient in the press fitting 45th has been inserted.
  • the graphic also shows the course in the event of an interruption of the pressing process.
  • the speed moves according to curve 79.
  • the curve runs according to the dashed line Section 90 straight ahead and then bends in the last Section in line with the re-emerging Compression resistance downwards.
  • an electronic memory chip 100 can also be provided be as shown in dashed lines in Figure 4. This memory chip 100 contains one for the one in question Press tool 3 specific coding and is on the line 101 connected to the microprocessor 63.
  • a memory chip 100 can also be used for the pressing tool 3 specific setpoint curve stored be. This can be done when coupling the press tool 3 transferred with the drive part 2 in the microprocessor 63 and saved there. Has this training the advantage that the drive part 2 with any kind of Pressing tools 3 can be combined as each pressing tool 3 stores the setpoint curve that is specific to him Has. The difference is the possible combinations if a coding is provided on the in the drive control device 62 stored setpoint curves limited, d. H. the drive part 2 can not with new pressing tools 3 can be combined, which have a performance curve should, whose setpoint curve is not in the drive control device 62 is stored.
  • This residual press path is obtained by the following calibration process.
  • the jaw closing sensor 54 is set so that it already responds, ie interrupts the circuit 51 when the jaw arms 38, 39 not quite their final pressing position shown in FIG. 3 achieved.
  • the press tool 3 is then on an appropriate calibration device or with the help of the drive part 2 of the pressing device 1 several times with a specific Force over the full press path to a final press position, in which the drive arms 36, 37 abut one another on the end face, moved together.
  • the speed sensor 24 and the speed sensor 26 and a special program is determined by recording the number of magnetic fields of the speed sensor 24 determined the residual press travel, the press jaw lever 34, 35 after the jaw closing sensor 54 has responded still put back. This is repeated until the Do not differentiate or only minimally differentiate the measured remaining press paths, the pressing tool 3 has therefore settled.
  • the one after that determined residual press path is stored in the memory chip 100 accepted. It is characteristic of the pressing tool in question 3. Due to manufacturing tolerances Pressing tools 3 of the same size, different residual press paths surrender.
  • the calibration described above ensures that the Drive motor 5 in a defined, for that Pressing tool 3 characteristic final pressing position switched off becomes.
  • the jaw closing sensor 54 is released during the pressing process the distance measurement for the stored remaining press path, whereby this by counting the pulses detected by the speed sensor 25 happens. After driving the remaining press path, the drive motor 5 switched off via the switch-off element 66.
  • an automatic selection of the appropriate one can be made Restpreßweg done in such a way that during the Pressing the compression resistance at a certain Point of the pressing path and its value as a selection criterion is used.
  • This can be the case with the present pressing device 1 happen in such a way that each one is characteristic Deviation from curve 79 is determined at the specific location and the measure of the deviation as a selection criterion is used.
  • an additional actual value sensor for a physical to provide a size that corresponds to the compression resistance, for example in the form of a strain gauge on one loaded part of the press tool 3 or a torque tap on the drive shaft 6.
  • the remaining press path or the remaining press paths be stored in the memory chip 100. Instead there is the possibility of storing the remaining press paths on the drive part 2 and here in particular in the microprocessor 63. In this case, the remaining press path or the group of remaining press paths by coding based on resistor 50 or the memory chip 100 driven. However, then be assured that for the respective press tool to be connected 3 actually a suitable residual press path or one Group of residual press paths is stored. Comes a press tool 3 for use, for which there is still no residual pressing path or no group of residual press paths is stored, should the calibration process described above - be it using the Drive part 2, be it with the help of a special calibration device - be made up for.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Automatic Assembly (AREA)
  • Press Drives And Press Lines (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP97114625A 1997-02-21 1997-08-23 Presse et procédé pour le stockage des données de déplacement ou du déplacement résiduel de la presse Expired - Lifetime EP0860222B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29703052U 1997-02-21
DE29703052U DE29703052U1 (de) 1997-02-21 1997-02-21 Preßgerät zum Verbinden von Werkstücken

Publications (3)

Publication Number Publication Date
EP0860222A2 true EP0860222A2 (fr) 1998-08-26
EP0860222A3 EP0860222A3 (fr) 2000-07-26
EP0860222B1 EP0860222B1 (fr) 2001-11-07

Family

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Family Applications (4)

Application Number Title Priority Date Filing Date
EP97114623A Expired - Lifetime EP0860220B1 (fr) 1997-02-21 1997-08-23 Presse
EP97114625A Expired - Lifetime EP0860222B1 (fr) 1997-02-21 1997-08-23 Presse et procédé pour le stockage des données de déplacement ou du déplacement résiduel de la presse
EP97114624A Expired - Lifetime EP0860221B1 (fr) 1997-02-21 1997-08-23 Presse
EP98102326A Expired - Lifetime EP0860223B1 (fr) 1997-02-21 1998-02-11 Presse pour connecter des pièces

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97114623A Expired - Lifetime EP0860220B1 (fr) 1997-02-21 1997-08-23 Presse

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP97114624A Expired - Lifetime EP0860221B1 (fr) 1997-02-21 1997-08-23 Presse
EP98102326A Expired - Lifetime EP0860223B1 (fr) 1997-02-21 1998-02-11 Presse pour connecter des pièces

Country Status (3)

Country Link
US (1) US6202290B1 (fr)
EP (4) EP0860220B1 (fr)
DE (5) DE29703052U1 (fr)

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EP1103349B1 (fr) * 1999-11-24 2003-04-23 Von Arx Ag Outil de pressage et méthode de commande dudit outil
EP2025475A3 (fr) * 2007-07-25 2010-07-07 Joiner's Bench AG Appareil de pressage destiné à relier des pièces à usiner et dispositif et procédé d'exécution d'un diagnostic technique de l'appareil de pressage
EP3639942B1 (fr) 2018-10-19 2022-11-30 Von Arx AG Machine à presser pourvu de système de détection destiné à la détection automatisée d'un agencement de mâchoire de compression

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EP1092487A3 (fr) * 1999-10-15 2004-08-25 Gustav Klauke GmbH Dispositif de pressage avec machoires de compression
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DE202008002200U1 (de) 2008-02-15 2009-03-26 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Handgeführtes Pressgerät
DE202008006831U1 (de) * 2008-05-20 2009-06-25 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Handführbares Pressgerät
CH699690B1 (de) * 2008-10-03 2012-07-31 Arx Ag Rollenhaltereinheit.
DE202009003196U1 (de) 2009-03-10 2010-04-29 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handführbare Antriebseinrichtung für ein Pressgerät
DE202009003197U1 (de) 2009-03-10 2010-05-06 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handführbare Antriebseinrichtung für ein Pressgerät
US20100253066A1 (en) * 2009-04-02 2010-10-07 Victaulic Company Crimp-Type Coupling, Crimping Tool and Method of Crimping
DE202009015515U1 (de) 2009-11-17 2011-04-07 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handgeführtes Pressgerät
DE102010043574A1 (de) * 2010-11-08 2012-05-10 Fresenius Medical Care Deutschland Gmbh Manuell zu öffnender Klemmhalter mit Sensor
US9463556B2 (en) 2012-03-13 2016-10-11 Hubbell Incorporated Crimp tool force monitoring device
DE102013203553B3 (de) * 2013-03-01 2014-07-17 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Handgeführtes Pressgerät
US9388885B2 (en) 2013-03-15 2016-07-12 Ideal Industries, Inc. Multi-tool transmission and attachments for rotary tool
US20150273674A1 (en) * 2014-03-26 2015-10-01 Testo Industry Corp. Auto-adjusting control device for adjusting clamping sizs of a c-ring nail gun
CN111451998A (zh) * 2014-07-07 2020-07-28 塞母布雷有限公司 流体动力压缩或切割工具和致动流体动力压缩工具的方法
DE202014011110U1 (de) 2014-09-11 2017-11-29 Wezag Gmbh Werkzeugfabrik Handzange
EP2995424B1 (fr) 2014-09-11 2018-12-12 Wezag GmbH Werkzeugfabrik Pince
EP3313654B1 (fr) * 2015-06-23 2021-12-15 Henn GmbH & Co KG. Procédé de détermination d'une caractéristique d'utilisation d'un outil de moulage par compression d'une presse d'assemblage
DE102016200615A1 (de) * 2016-01-19 2017-07-20 Zf Friedrichshafen Ag Doppelzahnrad und Aktuator mit einem Stirnradgetriebe
WO2020069696A1 (fr) 2018-10-05 2020-04-09 Rothenberger Ag Outil à main destiné à l'usinage par formage et/ou par découpage de pièces en plastique ou en métal, en particulier de tubes en plastique ou en métal
DE102019217816B4 (de) 2018-11-29 2025-11-13 Ridge Tool Company Werkzeugköpfe für scherarbeiten
US11236849B2 (en) 2019-09-04 2022-02-01 Techtronic Cordless Gp Pressing tool and method for a re-pressing operation
CN115070701B (zh) 2021-03-11 2025-06-10 里奇工具公司 可变力压紧工具系统
US20250357714A1 (en) * 2024-05-15 2025-11-20 Contitech Deutschland Gmbh Die set identification and verification

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103349B1 (fr) * 1999-11-24 2003-04-23 Von Arx Ag Outil de pressage et méthode de commande dudit outil
EP2025475A3 (fr) * 2007-07-25 2010-07-07 Joiner's Bench AG Appareil de pressage destiné à relier des pièces à usiner et dispositif et procédé d'exécution d'un diagnostic technique de l'appareil de pressage
EP3639942B1 (fr) 2018-10-19 2022-11-30 Von Arx AG Machine à presser pourvu de système de détection destiné à la détection automatisée d'un agencement de mâchoire de compression

Also Published As

Publication number Publication date
EP0860223A3 (fr) 2000-07-26
EP0860223B1 (fr) 2001-12-05
EP0860221A2 (fr) 1998-08-26
DE59709268D1 (de) 2003-03-13
US6202290B1 (en) 2001-03-20
EP0860220B1 (fr) 2003-02-05
EP0860220A3 (fr) 2000-07-26
EP0860222A3 (fr) 2000-07-26
DE59709629D1 (de) 2003-04-30
DE59802282D1 (de) 2002-01-17
DE59705272D1 (de) 2001-12-13
EP0860220A2 (fr) 1998-08-26
EP0860222B1 (fr) 2001-11-07
EP0860221A3 (fr) 2000-07-26
EP0860221B1 (fr) 2003-03-26
EP0860223A2 (fr) 1998-08-26
DE29703052U1 (de) 1997-04-03

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