EP3191279B1 - Procédé de commande d'un système de scie murale par sciage en long - Google Patents

Procédé de commande d'un système de scie murale par sciage en long Download PDF

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Publication number
EP3191279B1
EP3191279B1 EP15757272.8A EP15757272A EP3191279B1 EP 3191279 B1 EP3191279 B1 EP 3191279B1 EP 15757272 A EP15757272 A EP 15757272A EP 3191279 B1 EP3191279 B1 EP 3191279B1
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EP
European Patent Office
Prior art keywords
saw
mounting
sin
saw blade
end point
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Active
Application number
EP15757272.8A
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German (de)
English (en)
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EP3191279A1 (fr
Inventor
Wilfried Kaneider
Dragan Stevic
Christian Bereuter
Peter Hricko
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Hilti AG
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Hilti AG
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Publication of EP3191279A1 publication Critical patent/EP3191279A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/042—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs the saw blade being carried by a pivoted lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/044—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs the saw blade being movable on slide ways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/005—Devices for the automatic drive or the program control of the machines

Definitions

  • the present invention relates to a method for controlling a wall saw system when making a separating cut according to the preamble of claim 1.
  • EP1693173 B1 discloses such a method.
  • the wall saw system comprises a guide rail and a wall saw with a saw head, a motorized feed unit that moves the saw head parallel to a feed direction along the guide rail and at least one saw blade that is attached to a saw arm of the saw head and driven by a drive motor about a rotary axis.
  • the saw arm is designed to be pivotable about a pivot axis by means of a pivot motor. A pivoting movement of the saw arm around the pivot axis changes the penetration depth of the saw blade into the workpiece.
  • the motorized feed unit comprises a guide carriage and a feed motor, the saw head being attached to the guide carriage and displaced along the guide rail by the feed motor.
  • a sensor device with a swivel angle sensor and a displacement sensor is provided for monitoring the wall saw system.
  • the swivel angle sensor measures the current swivel angle of the saw arm and the displacement sensor measures the current position of the saw head on the guide rail.
  • the measured values for the current swivel angle of the saw arm and the current position of the saw head are regularly transmitted to a control unit of the wall saw.
  • the known method for controlling a wall saw system is divided into a preparatory part and a processing of the separating cut controlled by the control unit.
  • the operator defines at least the saw blade diameter of the saw blade, the positions of the first and second end points in the feed direction and the final depth of the separating cut; other parameters can be the material of the to be machined Workpiece and the dimensions of embedded rebar.
  • the control unit determines a suitable main cut sequence of main cuts for the separating cut, the main cut sequence at least a first main cut with a first main cutting angle of the saw arm and a first diameter of the saw blade used and a subsequent second main cut with a second main cutting angle of the saw arm and a first Includes diameter of the saw blade used.
  • the known method for controlling a wall saw system does not reveal any details as to how the saw blade and the blade guard are changed during the controlled processing of a severing cut.
  • the object of the present invention is to develop a method for controlling a wall saw system with a high processing quality, in which the change of a saw blade and a blade guard is integrated into the controlled processing of a separating cut.
  • the controlled machining of the separating cut is interrupted by the control unit and the wall saw is moved into a parking position by the control unit.
  • the wall saw is preferably positioned in a resumption position after the saw blade has been changed from the first to the second saw blade and the controlled machining is resumed by the control unit. If the control unit determines a resumption position in addition to the park position, the operator can move the wall saw out of the park position by means of the motorized feed unit along the guide rail after the interruption.
  • the ability to move the wall saw out of the parked position is advantageous for vertical or diagonal cuts in a wall, in which the parked position is arranged above a manageable assembly position.
  • the control unit uses the displacement sensor to check the current position of the wall saw. If the current position deviates from the resume position, the wall saw is positioned in the resume position.
  • a saw arm length of the saw arm which is defined as the distance between the pivot axis of the saw arm and the axis of rotation of the saw blade, and a distance between the pivot axis of the saw arm and an upper side of the workpiece are additionally set before the start of the machining controlled by the control unit.
  • Various parameters must be known to the control unit for the controlled processing of a severance cut. This includes the saw arm length, which is a fixed device-specific size of the wall saw, and the vertical distance between the pivot axis and the surface of the workpiece, which depends not only on the geometry of the wall saw but also on the geometry of the guide rail used.
  • the second end point represents a free end point without obstacles and the second saw blade diameter of the second saw blade set before the start is used to calculate a first parking position and a resumption position, which corresponds to the first parking position.
  • the second saw blade diameter of the second saw blade can be set between a maximum second saw blade diameter and a minimum second saw blade diameter, the maximum second saw blade diameter being used to calculate a second parking position.
  • the saw blade diameter changes as a result of wear during processing and decreases over time, the difference between the maximum and minimum second saw blade diameter corresponding to the height of the cutting segments.
  • the calculation of the second parking position with the maximum second saw blade diameter ensures that the second parking position is suitable for all actual saw blade diameters of the second saw blade.
  • the wall saw is positioned in a resumption position which corresponds to the second parking position.
  • the resumption of the controlled machining in the second parking position is possible for all actual saw blade diameters of the second saw blade; however, it has an inaccuracy in positioning.
  • the actual second saw blade diameter of the second saw blade is preferably entered and used to calculate a restart position.
  • the parking position is calculated so that any permissible saw blade diameter can be fitted for the second saw blade. By calculating the resume position with the actual second saw blade diameter, the wall saw can be controlled via the upper exit points of the saw blade.
  • the second end point is defined as an obstacle and before the start of the controlled processing, a mounting distance is also established, the mounting distance being additionally used for calculating a third to fifth parking position.
  • the mounting distance ensures that there is sufficient distance between the obstacle and the saw blade or between the obstacle and the blade guard for the operator to grasp the saw blade or the blade guard.
  • the control unit calculates different parking positions depending on the processing conditions.
  • the first and second saw blades are used without blade guards.
  • the first saw blade is surrounded by the first blade guard and machining with the second saw blade takes place without a blade guard.
  • the fifth parking position there is a change from the first saw blade with the first blade guard to the second saw blade with a second blade guard.
  • the parking positions must meet the four boundary conditions (dismantling, assembling, swiveling out and swiveling in) and are dependent on the first main cutting angle of the first main cut and the second main cutting angle of the second main cut.
  • the first and second saw blades are used without blade guards.
  • a distinction must be made between three angle ranges -180 ° to 0 °, 0 ° to 90 ° and 90 ° to 180 °, so that a total of nine different distances result for the third parking position.
  • the preset first saw blade diameter of the first saw blade is used to calculate the third parking position for the first diameter of the first main cut and the preset second saw blade diameter of the second saw blade is used for the second diameter of the second main cut.
  • the wall saw is preferably positioned by the control unit in a resumption position which corresponds to the third parking position.
  • the second saw blade diameter is adjustable between a maximum second saw blade diameter and a minimum second saw blade diameter, and the maximum second saw blade diameter is used to calculate the parking position for the second diameter of the second main cut. By calculating the parking position with the maximum second saw blade diameter, it is ensured that the parking position is suitable for all actual saw blade diameters of the second saw blade.
  • the wall saw is either positioned in a resumption position, which corresponds to the parking position, or the actual second saw blade diameter of the second saw blade is entered and used to calculate a resumption position before the controlled machining is resumed.
  • the pivot axis is at a distance from the second end point of D real .2 / 2 for -180 ° ⁇ - ⁇ 2 ⁇ 0 °, D real .2 / 2 + ⁇ ⁇ sin ( ⁇ 2 ) for 0 ° ⁇ 2 ⁇ 90 ° and D real .2 / 2 + ⁇ ⁇ sin (90 °) for 90 ° ⁇ 2 ⁇ 180 °.
  • a first blade guard with a first blade guard width is specified for the first saw blade before the start of the controlled processing, the first blade guard width being composed of a first distance between the axis of rotation and the first blade guard edge and a second distance between the axis of rotation and the second blade guard edge and the second distance is also used to calculate the fourth parking position.
  • the fourth parking position depends on the first and second main cutting angle. For the main cutting angles, there are three angle ranges from -180 ° to 0 °, 0 ° to 90 ° and 90 ° to 180 °, so that a total of nine different distances result for the fourth parking position.
  • the saw arm is arranged at a negative first main cutting angle between -180 ° and 0 before the interruption of the controlled processing and the pivot axis has a distance to the second end point of maximum value of [B b in the fourth parking position . 1 + ⁇ assembly , D 2/2 + ⁇ assembly ] for -180 ° ⁇ - ⁇ 2 ⁇ 0 °, maximum value of [B b.
  • the saw arm is arranged at a positive first main cutting angle between 0 ° and 90 ° before the interruption of the controlled machining and the pivot axis has a distance to the second end point of maximum value of [B b .1 + ⁇ Montage , D in the fourth parking position 2/2 + ⁇ mounting, B b .1 + ⁇ ⁇ sin ( ⁇ 1)] to -180 ° ⁇ - ⁇ 2 ⁇ 0 °, maximum value of [B + ⁇ b .1 mounting, D 2/2 + ⁇ assembly , B b .1 + ⁇ ⁇ sin ( ⁇ 1 ), D 2/2 + ⁇ ⁇ sin ( ⁇ 2 )] for 0 ° ⁇ 2 ⁇ 90 ° and maximum value of [B b .1 + ⁇ Montage , D 2 / 2 + ⁇ Montage , B b .1 + ⁇ ⁇ sin ( ⁇ 1 ), D 2/2 + ⁇ ⁇ sin (90 °)] for 90 ° and maximum value of [B
  • the saw arm is arranged at a positive first main cutting angle between 90 ° and 180 ° before the interruption of the controlled processing and the pivot axis has a distance to the second end point of maximum value of [B b .1 + ⁇ Montage , D in the fourth parking position 2/2 + ⁇ mounting, B b .1 + ⁇ ⁇ sin (90 °)] is -180 ° ⁇ - ⁇ 2 ⁇ 0 °, maximum value of [B + ⁇ b .1 mounting, D 2/2 + ⁇ assembly , B b .1 + ⁇ ⁇ sin (90 °), D 2/2 + ⁇ ⁇ sin ( ⁇ 2 )] for 0 ° ⁇ 2 ⁇ 90 ° and maximum value of [B b .1 + ⁇ Montage , D 2 / 2 + ⁇ Montage , B b .1 + ⁇ ⁇ sin (90 °), D 2/2 + ⁇ ⁇ sin (90 °)] for 90 ° and maximum value of [B
  • the wall saw is positioned in a resumption position which corresponds to the fourth parking position.
  • the saw arm is swiveled into the second main cutting angle and the saw head is then moved in a negative feed direction opposite to the positive feed direction towards the first end point.
  • a second blade guard with a second blade guard width is defined for the second saw blade before the start of the controlled processing, the second blade guard width being composed of a first distance between the axis of rotation and the first blade guard edge and a second distance between the axis of rotation and the second blade guard edge and the second distance is also used to calculate the fifth parking position.
  • the fifth parking position depends on the first and second main cutting angle. A distinction is made between three angle ranges, negative main cutting angles, positive main cutting angles from 0 ° to 90 ° and positive main cutting angles from 90 ° to 180 °, so that a total of nine different distances result for the fifth parking position.
  • the saw arm In the first angular range the saw arm is arranged at a negative first main cutting angle between -180 ° and 0 ° before the interruption of the controlled processing and the pivot axis has a distance to the second end point of maximum value of [B b .1 + ⁇ assembly , in the fifth parking position, B b .2 + ⁇ Montage ] for -180 ° ⁇ - ⁇ 2 ⁇ 0 °, maximum value of [B b .1 + ⁇ Montage , B b .2 + ⁇ Montage , B b .2 + ⁇ ⁇ sin ( ⁇ 2 )] for 0 ° ⁇ 2 ⁇ 90 ° and maximum value of [B b .1 + ⁇ Montage , B b .2 + ⁇ Montage , B b .2 + ⁇ ⁇ sin (90 °)] for 90 ° ⁇ 2 ⁇ 180 °.
  • the saw arm is arranged at a positive first main cutting angle between 0 ° and 90 ° before the interruption of the controlled machining and the pivot axis has a distance to the second end point of maximum value of [B b in the fifth parking position . 1 + ⁇ Montage , B b .2 + ⁇ Montage , B b .1 + ⁇ ⁇ sin ( ⁇ 1 )] for -180 ° ⁇ - ⁇ 2 ⁇ 0 °, maximum value of [B b.
  • the saw arm is arranged at a positive first main cutting angle between 90 ° and 180 ° before the interruption of the controlled machining and the pivot axis has a distance to the second end point of maximum value of [B b in the fifth parking position . 1 + ⁇ Montage , B b .2 + ⁇ Montage , B b .1 + ⁇ ⁇ sin (90 °)] for -180 ° ⁇ - ⁇ 2 ⁇ 0 °, maximum value of [B b.
  • the wall saw is positioned in a resumption position which corresponds to the fifth parking position.
  • the saw arm is swiveled into the second main cutting angle and the saw head is then moved in a negative feed direction opposite to the positive feed direction towards the first end point.
  • FIG. 1 shows a wall saw 10 with a guide rail 11, arranged a displaceable on the guide rail 11, the tool unit 12 and a remote control 13.
  • the power tool is designed as a wall saw 12 and comprises a processing unit 14 and a motor drive unit 15.
  • the processing unit is configured as a saw head 14 and comprises a machining tool 16 in the form of a saw blade , which is attached to a saw arm 17 and is driven by a drive motor 18 about an axis of rotation 19 .
  • the saw blade 16 is surrounded by a blade guard 21 which is fixed by a blade guard holder on the saw arm 17th
  • the saw arm 17 is designed to be pivotable about a pivot axis 23 by a pivot motor 22 .
  • the pivot angle ⁇ of the saw arm 17 determines with a saw blade diameter D of the saw blade 16 how deep the saw blade 16 dips into a workpiece 24 to be machined.
  • the drive motor 18 and the swivel motor 22 are arranged in a device housing 25 .
  • the motorized feed unit 15 comprises a guide carriage 26 and a feed motor 27, which in the exemplary embodiment is also arranged in the device housing 25.
  • the saw head 14 is fastened to the guide carriage 26 and is designed to be displaceable along the guide rail 11 in a feed direction 28 via the feed motor 27.
  • a control unit 29 for controlling the saw head 14 and the motorized feed unit 15 is arranged in the device housing 25.
  • a sensor device with several sensor elements is provided to monitor the wall saw system 10 and the machining process.
  • a first sensor element 32 is designed as a swivel angle sensor and a second sensor element 33 as a displacement sensor.
  • the swivel angle sensor 32 measures the current swivel angle of the saw arm 17 and the displacement sensor 33 measures the current position of the saw head 14 on the guide rail 11.
  • the measured variables are transmitted from the swivel angle sensor 32 and displacement sensor 33 to the control unit 29 and used to control the wall saw 12.
  • the remote control 13 comprises a device housing 35, an input device 36, a display device 37 and a control unit 38, which is arranged inside the device housing 35.
  • the control unit 38 converts the inputs from the input device 36 into control commands and data, which are transmitted to the wall saw 12 via a first communication link.
  • the first communication connection is designed as a wireless and wireless communication connection 41 or as a communication cable 42 .
  • the wireless and wireless communication link is designed as a radio link 41, which is created between a first radio unit 43 on the remote control 13 and a second radio unit 44 on the tool device 12.
  • the wireless and wireless Communication connection 41 be in the form of an infrared, Bluetooth, WLAN or Wi-Fi connection.
  • FIGN. 2A , B show the guide rail 11 and the wall saw 12 of the wall saw system 10 of FIG. 1 when making a separating cut 51 in workpiece 24, workpiece thickness d.
  • the separating cut 51 has an end depth T and runs in the feed direction 28 between a first end point E 1 and a second end point E 2 .
  • the X direction is defined as a direction parallel to the feed direction 28, the positive X direction being directed from the first end point E 1 to the second end point E 2 , and the Y direction being a direction perpendicular to the X direction into the depth of the workpiece 24 defined.
  • the end point of a severance cut can be defined as a free end point without an obstacle or as an obstacle. Both end points can be defined as free end points without an obstacle, both end points as an obstacle or one end point as a free end point and the other end point as an obstacle. Overlapping may be permitted at a free end point without an obstacle. As a result of the overlapping, the cutting depth at the end point reaches the final depth T of the separating cut.
  • the end points E 1, E 2 form free end points without an obstacle, an overlap being not permitted at the free first end point E 1 and an overlap taking place at the second end point E 2 .
  • FIG. 2A shows the saw head 14 in an assembly position X 0 and the saw arm 17 in a basic position of 0 °.
  • the operator positions the saw head 14 in the assembly position X 0 on the guide rail 11 by means of the guide carriage 26.
  • the assembly position X 0 of the saw head 14 lies between the first and second end points E 1 , E 2 and is determined by the position of the pivot axis 23 in the feed direction 28.
  • the position of the pivot axis 23 is particularly suitable as a reference position X Ref for monitoring the position of the saw head 14 and controlling the wall saw 12, since the X position of the pivot axis 23 remains unchanged even during the pivoting movement of the saw arm 17.
  • a different X position on the saw head 14 can be defined as the reference position, in which case the distance in the X direction to the pivot axis 23 must also be known.
  • the X positions of the first and second end points E 1, E 2 are defined in the exemplary embodiment by entering partial lengths.
  • the distance between the mounting position X 0 and the first end point E 1 determines a first partial length L 1 and the distance between the mounting position X 0 and the second end point E 2 determines a second partial length L 2 .
  • the X positions of the end points E 1 , E 2 can be defined by entering a partial length (L 1 or L 2 ) and a total length L as the distance between the end points E 1 , E 2 .
  • the separating cut 51 is made in several partial cuts until the desired final depth T is reached.
  • the partial cuts between the first and second end points E 1 , E 2 are defined as main cuts and the cutting sequence of the main cuts as the main cutting sequence. Additional corner machining can be carried out at the end points of the separating cut, which is referred to as obstacle machining in the case of an obstacle and as overcut machining in the case of a free end point with overlapping.
  • the main cutting sequence can be determined by the operator or the control unit of the wall saw system determines the main cutting sequence depending on several boundary conditions.
  • the first main cut which is also referred to as the preliminary cut, is usually carried out with a reduced cutting depth and a reduced power of the drive motor in order to prevent the saw blade from being polished.
  • the other main cuts are usually made with the same cutting depth, but can also have different cutting depths.
  • the boundary conditions that are usually set by an operator include the cutting depth of the preliminary cut, the performance of the preliminary cut and the maximum cutting depth of the further main cuts.
  • the control unit can determine the main cutting sequence from these boundary conditions.
  • the main cuts of a severing cut are made with one saw blade diameter or with two or more saw blade diameters. If several saw blades are used, processing usually starts with the smallest saw blade diameter.
  • the saw blade 16 In order to be able to mount the saw blade 16 on the saw arm 17, the saw blade 16 must be arranged above the workpiece 24 in the basic position of the saw arm 17. Whether this boundary condition is met depends on two device-specific parameters of the wall saw system 10, on the one hand on a vertical distance ⁇ between the pivot axis 23 of the saw arm 17 and an upper side 53 of the workpiece 24 and on the other hand on a saw arm length ⁇ of the saw arm 17, which is used as Distance between the axis of rotation 19 of the saw blade 16 and the pivot axis 23 of the saw arm 17 is defined.
  • the saw blade 16 is arranged above the workpiece 24 in the basic position.
  • the saw arm length ⁇ is a fixed device-specific variable of the wall saw 12, whereas the vertical distance ⁇ between the pivot axis 23 and the surface 53 depends not only on the geometry of the wall saw 12 but also on the geometry of the guide rail 11 used.
  • the saw blade 16 is attached to a flange on the saw arm 17 and is driven by the drive motor 18 about the axis of rotation 19 when the saw is in operation.
  • the pivot angle is 0 ° and the axis of rotation 19 of the saw blade 16 lies above the pivot axis 23.
  • the saw blade 16 is moved into the workpiece 24 from the basic position at 0 ° by a pivoting movement of the saw arm 17 about the pivot axis 23.
  • the saw blade 16 is driven by the drive motor 18 about the axis of rotation 19.
  • the saw blade 16 should be surrounded by the blade guard 21 during operation.
  • the wall saw 12 is operated with a blade guard 21 or without a blade guard 21.
  • the blade guard 21 can for example be dismantled. If different saw blade diameters are used to process the separating cut, different blade guards with corresponding blade guard widths are usually used.
  • FIG. 2 B shows the saw arm 17, which is inclined in a negative direction of rotation 54 at a negative pivot angle - ⁇ .
  • the saw arm 17 is adjustable in the negative direction of rotation 54 between swivel angles from 0 ° to -180 ° and in a positive direction of rotation 55 opposite to the negative direction of rotation 54 between swivel angles from 0 ° to + 180 °.
  • the illustrated arrangement of the saw arm 17 is referred to as a pulling arrangement when the saw head 14 is moved in a positive feed direction 56 . If the saw head 14 is moved in a negative feed direction 57 opposite to the positive feed direction 56, the arrangement of the saw arm 17 is referred to as an abutting arrangement.
  • the saw blade 16 generates a cutting wedge in the workpiece 24 in the form of a circular segment with a height h and a width b.
  • the height h of the circular segment corresponds to the depth of penetration of the saw blade 16 into the workpiece 24.
  • the control of the wall saw 12 during the separating cut depends on whether the end points are defined as obstacles and, in the case of an obstacle, on whether the processing is carried out with blade guard 21 or without blade guard 21.
  • the wall saw 12 is controlled in the method according to the invention via upper exit points of the saw blade 16 on the upper side 53 of the workpiece 24.
  • the upper exit points of the saw blade 16 can be moved from the reference position X Ref of the pivot axis 23 in the X direction, calculate the displacement path ⁇ x of the axis of rotation 19 in the X direction and the width b.
  • first upper exit point 58 An upper exit point facing the first end point E 1 is referred to as the first upper exit point 58 and an upper exit point facing the second end point E 2 is referred to as the second upper exit point 59.
  • first upper exit point 58 X Ref + ⁇ x - b / 2
  • the wall saw 12 is controlled in the method according to the invention via the reference position X Ref of the pivot axis 23 and the limitation of the wall saw 12. A distinction is made between machining without blade guard 21 and machining with blade guard 21.
  • FIGN. 3A , B show the wall saw system 10 making a separating cut between the first end point E 1 and the second end point E 2 , which are defined as obstacles, the processing being carried out without a blade guard 21.
  • a first saw blade edge 61 which faces the first end point E 1
  • a second saw blade edge 62 which faces the second end point E 2 , form the boundary of the wall saw 12.
  • the X positions of the first and second saw blade edges 61, 62 in the X direction can be calculated from the reference position X Ref of the pivot axis 23, the displacement path ⁇ x of the axis of rotation 19 and the saw blade diameter D.
  • FIG. 3A shows the wall saw 12 with the saw arm 17 inclined in the negative direction of rotation 54 at a negative pivot angle - ⁇ (0 ° to -180 °).
  • X (61) X Ref + ⁇ ⁇ sin (- ⁇ ) - D / 2
  • X (62) X Ref + ⁇ ⁇ sin (- ⁇ ) + D / 2.
  • 3B shows the wall saw 12 with the saw arm 17 inclined in the positive direction of rotation 55 at a positive pivot angle ⁇ (0 ° to + 180 °).
  • X (61) X Ref + ⁇ ⁇ sin ( ⁇ ) - D / 2
  • X (62) X Ref + ⁇ ⁇ sin ( ⁇ ) + D / 2.
  • FIGN. 4A , B show the wall saw system 10 making a separating cut between the first end point E 1 and the second end point E 2 , which are defined as obstacles, the processing being carried out with a blade guard 21.
  • a first blade protection edge 71 which faces the first end point E 1
  • a second blade protection edge 72 which faces the second end point E 2 , form the boundary of the wall saw 12.
  • the X positions of the first and second blade guard edge 71, 72 in the X direction can be calculated from the reference position X Ref of the pivot axis 23, the displacement path ⁇ x of the axis of rotation 19 and the blade guard width B.
  • FIG. 4A shows the wall saw 12 with the saw arm 17 inclined at a negative swivel angle - ⁇ (0 ° to -180 °) and the mounted blade guard 21 of blade guard width B.
  • FIG. 4B shows the wall saw 12 with the saw arm 17 inclined at a positive pivot angle ⁇ (0 ° to + 180 °) and the mounted blade guard 21 of blade guard width B.
  • X (71) X Ref + ⁇ sin ( ⁇ ) - B a
  • FIGS. 2A , B show a separating section between two end points E 1 , E 2 , which are defined as free end points without an obstacle
  • FIGN. 3A , B and 4A, B show a separating section between two end points E 1 , E 2 , which are defined as obstacles.
  • separating cuts are also possible in which one end point is defined as an obstacle and the other end point represents a free end point without an obstacle, with the wall saw being controlled via the upper exit point of the saw blade at the free end point and via the saw blade edge for the obstacle (machining without sheet protection 21) or the sheet protection edge (processing with sheet protection 21).
  • the first upper exit point 58, the first saw blade edge 61 and the first blade protection edge 71 are summarized under the term “first boundary" of the wall saw 12 and the second upper exit point 59, the second saw blade edge 62 and the second blade protection edge 72 are summarized under the term “second Limitation "summarized.
  • FIGN. 5A-H show the wall saw system 10 of FIG. 1 with the guide rail 11 and the wall saw 12 when creating a separating cut of the final depth T in the workpiece 24 between a first end point E 1 , which represents an obstacle, and a second end point E 2 , which represents a free end point without an obstacle.
  • the cut is machined with the aid of the method according to the invention for controlling a wall saw system.
  • the separating cut is made in a main cut sequence of several main cuts until the desired final depth T is reached.
  • the main cutting sequence comprises a preliminary cut (zeroth main cut) with a zeroth main cutting angle ⁇ 0 of the saw arm 17, a zeroth diameter D 0 and a zeroth penetration depth h 0 of the saw blade used, a first main cut with a first main cutting angle ⁇ 1 of the saw arm 17, a first diameter D 1 and a first penetration depth h 1 of the saw blade used, a second main cut with a second main cutting angle ⁇ 2 of the saw arm 17, a second diameter D 2 and a second penetration depth h 2 of the saw blade used and a third main cut with a third main cutting angle ⁇ 3 des Saw arm 17, a third diameter D 3 and a third penetration depth h 3 of the saw blade used.
  • the preliminary cut and the first main cut are made by a first saw blade 16.1 with a first saw blade diameter D.1 and a first blade guard 21.1 with a first blade guard width B.1 .
  • the zeroth diameter D 0 of the preliminary cut and the first diameter D 1 of the first main cut correspond to the first saw blade diameter D.1, and the zeroth width B 0 of the preliminary cut and the first width B 1 of the first main cut with the first blade guard width B. 1 match.
  • the second main cut and the third main cut are performed by a second saw blade 16.2 with a second saw blade diameter D.2 and a second blade guard 21.2 with a second blade guard width B.2 .
  • the second diameter D 2 of the second main cut and the third diameter D 3 of the third main cut match the second saw blade diameter D.2, and the second width B 2 of the second main cut and the third width B 3 of the third main cut match the second blade guard width B.2 match.
  • the main cuts of a severing cut are advantageously carried out either with a pulling saw arm 17 or the saw arm 17 is arranged alternately pulling and pushing.
  • the pulling arrangement of the saw arm 17 enables stable guidance of the saw blade during processing and a narrow cutting gap.
  • a separating cut in which the saw arm 17 is arranged alternately pulling and pushing has the advantage that the non-productive times required for positioning the saw head 14 and pivoting the saw arm 17 are reduced.
  • machining is carried out in all main cuts with the pulling saw arm 17.
  • the machining of the separating cut begins at the second end point E 2 .
  • the saw head 14 is positioned in a starting position X Start in which the pivot axis 23 is at a distance of ⁇ [h 0 ⁇ (D 0 - h 0 )] - ⁇ ⁇ sin ( ⁇ 0 ) from the second end point E.
  • the saw arm 17 is pivoted from the basic position 0 ° in the positive direction of rotation 55 into the positive zeroth main cutting angle ⁇ 0 .
  • the saw head 14 with the inclined saw arm 17 and the rotating first saw blade 16.1 is then moved in the negative feed direction 57.
  • the wall saw 12 is controlled at the first end point E 1 via the first blade guard edge 71.1 of the first blade guard 21.1.
  • the saw head 14 is stopped, if the pivot axis B at a distance of 1/2 23 - has ⁇ ⁇ sin (- ⁇ 1) to the first end point e. 1
  • the first width B 1 of the blade guard used corresponds to the first blade guard width B.1 of the first blade guard 21.1.
  • the saw arm 17 is then pivoted in the negative direction of rotation 54 into the negative first main cutting angle - ⁇ 1 and the saw head 14 with the saw arm 17 inclined at - ⁇ 1 is moved in the positive feed direction 56 ( FIG. 5A ).
  • the transition from the preliminary cut to the first partial cut has taken place without removing the residual material.
  • the preliminary cut can be ended with a complete removal of the remaining material during the preliminary cut or a partial removal.
  • the saw arm 17 is then pivoted in the positive direction of rotation 55 into the positive first main cutting angle ⁇ 1 and the remaining material is removed.
  • the saw head 14 is positioned in a parking position and the saw arm 17 is swiveled out of the workpiece 24, the saw arm 17 in the exemplary embodiment being swiveled into the basic position of 0 ° ( FIG. 5B ).
  • the positioning of the saw head 14 in the parking position and the pivoting movement of the saw arm 17 can be carried out one after the other or carried out simultaneously.
  • the park position should meet various boundary conditions: The first saw blade 16.1 and the first blade guard 21.1 can be removed in the park position.
  • the second saw blade 16.2 and the second blade guard 21.2 can be mounted in the parking position.
  • the travel for positioning the saw head 14 for the second main cut should be as short as possible; in the ideal case, the parking position corresponds to the starting position for the second main cut.
  • the wall saw 12 is positioned by the control unit 29 in a resumption position which corresponds to the parking position.
  • the distance was set in the calculation of the parking position so that, the second end point E 2 facing, second upper exit point 59.2 of the second saw blade 16.2 after the pivotal movement of the saw arm ⁇ 17 in the positive second main cutting angle 2 with the second end point E 2 coincides ( FIG. 5C ). This positioning can reduce idle times.
  • the saw arm 17 In the resumption position, the saw arm 17 is pivoted in the positive direction of rotation 55 into the positive second main cutting angle ⁇ 2 .
  • the saw head 14 is moved in the negative feed direction 57 with the saw arm 17 inclined at the second main cutting angle ⁇ 2 and the rotating second saw blade 16.2.
  • the transition from the second main cut to the third main cut takes place analogously to the transition from the preliminary cut to the first main cut with complete removal of the remaining material ( FIG. 5E ) or alternatively with a partial removal of the residual material or without removal of the residual material.
  • the wall saw is controlled by means of the first blade guard edge 71.2 of the second blade guard 21.2.
  • the last main cut is made with the maximum pivoting angle of the saw arm in order to remove as much material as possible in the area of the end points.
  • the depth of cut corresponds to the maximum swivel angle ⁇ 180 ° and, with restrictions, the maximum permissible cutting depth for the saw blade used can be converted into a maximum swivel angle.
  • the third main cut corresponds to the last main cut and is carried out with a third main cut angle of -180 °. The positioning of the saw head 14 for the third main cut with the maximum swivel angle of -180 ° takes place by means of the critical angle ⁇ crit of -90 °.
  • the critical angle of -90 ° must be taken into account, since the first end point E 1 must not be exceeded during the pivoting movement.
  • the saw head 14 with the saw arm 17 inclined at -180 ° moves in the negative feed direction 57 until the first blade guard edge 71.2 of the second blade guard 21.2 coincides with the first end point E 1 .
  • the corner processing of the first end point E 1 can be improved if the second blade guard 21.2 is removed and the corner processing is carried out without a blade guard. Without a blade guard, the saw head 14 with the saw arm 17 inclined at -180 ° is moved in the negative feed direction 57 until the first saw blade edge 61.2 of the second saw blade 16.2 coincides with the first end point E 1 .
  • the third main cut is performed with the saw arm 17 inclined at the negative third main cutting angle - ⁇ 3 in the positive feed direction 56.
  • FIGN. 6A , B show the wall saw system 10 with the guide rail 11 and the wall saw 12 making a further separating cut between a first end point E 1 , which represents a free end point without an obstacle, and a second end point E 2 , which represents an obstacle.
  • the wall saw 12 is controlled at the first end point E 1 via the first upper exit point 59 of the saw blade used and at the second end point E 2 via the first saw blade edge 61 (without blade guard 21) or the first blade guard edge 71 (with blade guard 21).
  • the cutting sequence comprises a first main cut with a first main cutting angle ⁇ 1 of the saw arm 17, a first diameter D 1 and a first penetration depth h 1 of the saw blade used, as well as a following second main cut with a second main cutting angle ⁇ 2 of the saw arm 17, a second diameter D 2 and a second penetration depth h 2 of the saw blade used.
  • the first main cut is made by the first saw blade 16.1 and the first blade guard 21.1 and the second main cut is made by the second saw blade 16.2 and the second blade guard 21.2.
  • the first diameter D 1 and the first width B 1 of the first main cut correspond to the first saw blade diameter D.1 and the first blade guard width B.1.
  • the second diameter D 2 and the second width B 2 of the second main cut correspond to the second saw blade diameter D.2 and the second blade guard width B.2.
  • the dismantling of the first saw blade 16.1 and first blade guard 21.1 and the assembly of the second saw blade 16.2 and second blade guard 21.2 take place in the basic position of the saw arm 17 at 0 °.
  • a mounting distance ⁇ mounting is additionally established before the start of the controlled processing.
  • the mounting distance ⁇ mounting ensures that between the There is sufficient distance between the obstacle and the saw blade or between the obstacle and the blade guard for the operator to grip the saw blade or the blade guard; a suitable mounting distance is, for example, 10 cm.
  • a minimum distance to the second end point (E 2 ) of B b .1 + ⁇ assembly for the first blade protection 21.1 and B b .2 + ⁇ assembly for the second blade protection 21.2 is required. Since the first blade guard width B.1 is smaller than the second blade guard width B.2, it is sufficient for symmetrical blade guards to take the second blade guard width B.2 into account when calculating the minimum distance for mounting; for asymmetrical blade guards, both minimum distances must be taken into account.
  • the pivot axis 23 must have a distance of maximum value of [B b .1 + ⁇ Montage, B b .2 + ⁇ Montage ] to the obstacle at E 2 ( FIG. 6A ).
  • the necessary distances for swiveling out the first saw blade 16.1 and for swiveling in the second saw blade 16.2 at the second end point E 2 depend on the first main cutting angle ⁇ 1 of the first main cut and on the second main cutting angle ⁇ 2 of the second main cut.
  • the critical angle ⁇ crit of ⁇ 90 ° must be taken into account, since the obstacle at the second end point E 2 must not be exceeded during the swivel movement.
  • first main cutting angles - ⁇ 1 of -180 ° to 0 ° the first saw blade 16.1 is pivoted out into the basic position at 0 ° on the side facing away from the second end point E 2 and the displacement path is negative.
  • positive second main cutting angles ⁇ 2 from 0 ° to 90 ° and positive second main cutting angles ⁇ 2 from 90 ° to 180 ° different distances result.
  • the control unit 29 selects the maximum value of [B b .1 + ⁇ assembly , B b .2 + ⁇ assembly ] as the parking position for the wall saw 12.
  • first main cutting angle ⁇ 1 is positive from 0 ° to 90 °
  • the first saw blade 16.1 is pivoted out into the basic position on the side facing the second end point E 2 .
  • a distance between the pivot axis 23 of B b .1 + ⁇ ⁇ sin ( ⁇ 1 ) from the obstacle is required.
  • positive second main cutting angles ⁇ 2 from 0 ° to 90 ° and positive second main cutting angles ⁇ 2 from 90 ° to 180 ° there are different distances.
  • the second saw blade 16.2 is swiveled in on the opposite side of the obstacle and the control unit 29 selects the maximum value of [B b .1 + ⁇ assembly , B b .2 + ⁇ assembly , as the parking position for the wall saw 12, B b .1 + ⁇ ⁇ sin ( ⁇ 1 )].
  • a distance of the pivot axis 23 of B b .2 + ⁇ ⁇ sin ( ⁇ 2 ) to the obstacle is required for pivoting the second saw blade 16.2 and the control unit 29 selects the parking position for the wall saw 12 the maximum value of [B b.
  • the second saw blade 16.2 is swiveled in on the side facing away from the obstacle and the control unit 29 selects the maximum value of [B b .1 + ⁇ assembly , B b .2 + ⁇ assembly , as the parking position for the wall saw 12, B b .1 + ⁇ ⁇ sin (90 °)].
  • the second saw blade edge 62 is used instead of the second blade guard edge 72 to calculate the minimum distances for the parking position and the second blade guard width B.2 becomes the saw blade diameter D.2 of the second saw blade 16.2 replaced.
  • FIGN. 5A-H and FIGN. 6A , B the pivoting movement of the saw arm 17 into the main cutting angles takes place in a pivoting movement.

Claims (27)

  1. Procédé de commande d'un système de scie murale (10) comprenant un rail de guidage (11) et une scie murale (12) avec une tête de scie (14), une unité d'avance motorisée (15) qui déplace la tête de scie (14) parallèlement à une direction d'avance (28) le long du rail de guidage (11), une première lame de scie (16.1) et une deuxième lame de scie plus grande (16.2) dans le cas de la création d'une découpe de séparation (51) de profondeur finale (T) dans une pièce (24) d'épaisseur de pièce (d) entre un premier point d'extrémité (E1) et un deuxième point d'extrémité (E2), la première ou la deuxième lame de scie (16.1, 16.2) étant fixée à un bras de scie (17) de la tête de scie (14) pouvant pivoter autour d'un axe de pivotement (23) et étant entraînée autour d'un axe de rotation (19), comprenant les étapes suivantes :
    ▪ avant le début d'un usinage de la découpe de séparation (51) commandé par une unité de commande (29) de la scie murale (12), au moins le premier diamètre de lame de scie (D.1) de la première lame de scie (16.1), le deuxième diamètre de lame de scie (D.2) de la deuxième lame de scie (16.2), les positions du premier et du deuxième point d'extrémité (E1, E2) dans la direction d'avance (28), la profondeur finale (T) de la découpe de séparation (51) et une série de découpes principales de m découpes principales, où m est ≥ 2, sont déterminés, la série de découpes principales comprenant au moins une première découpe principale avec un premier angle de découpe principale (α1) du bras de scie (17) et un premier diamètre (D1) de la lame de scie utilisée pour la première découpe principale ainsi qu'une deuxième découpe principale suivante avec un deuxième angle de découpe principale (α2) du bras de scie (17) et un deuxième diamètre (D2) de la lame de scie utilisée pour la deuxième découpe principale,
    ▪ pendant l'usinage commandé par l'unité de commande (29),
    - le bras de scie (17) avec la première lame de scie (16.1) est disposé dans un sens de rotation positif (55) suivant le premier angle de découpe principale positif (+α1) ou dans un sens de rotation négatif (54) orienté à l'opposé du sens de rotation positif (55) suivant le premier angle de découpe principale négatif (-α1) et
    - la tête de scie (14) est déplacée dans une direction d'avance positive (56) dans la direction du deuxième point d'extrémité (E2),
    dans lequel, après l'usinage de la découpe de séparation (51) avec la première lame de scie (16.1), l'usinage commandé de la découpe de séparation par l'unité de commande (29) est interrompu et la scie murale (12) est déplacée par l'unité de commande (29) dans une position de stationnement,
    caractérisé en ce que avant le début de l'usinage commandé par l'unité de commande (29), une longueur de bras de scie (δ) du bras de scie (17), qui est définie comme la distance entre l'axe de pivotement (23) du bras de scie (17) et l'axe de rotation (19) de la première ou la deuxième lame de scie (16.1, 16.2), et une distance (Δ) entre l'axe de pivotement (23) et un côté supérieur (53) de la pièce (24) sont en outre déterminées.
  2. Procédé selon la revendication 1, caractérisé en ce que la scie murale (12), après le changement de la première lame de scie (16.1) à la deuxième lame de scie (16.2) et la reprise de l'usinage commandé par l'unité de commande (29), est positionnée dans une position de reprise.
  3. Procédé selon la revendication 2, caractérisé en ce que le deuxième point d'extrémité (E2) constitue un point d'extrémité libre sans obstacle et le deuxième diamètre de lame de scie (D.2) de la deuxième lame de scie (16.2) établi avant le début est utilisé pour calculer une première position de stationnement et une position de reprise qui correspond à la première position de stationnement.
  4. Procédé selon la revendication 3, caractérisé en ce que l'axe de pivotement (23), dans la première position de stationnement, est espacé du deuxième point d'extrémité (E2) de h 2 ⋅ D .2 − h 2 + δ ⋅ sin ± α 2 ,
    Figure imgb0001
     où h2 = h(±α2, D.2) = D.2/2 - Δ - δ · cos(±α2) désigne la profondeur d'enfoncement de la deuxième lame de scie utilisée (16.2) dans la pièce (24) dans le cas du deuxième angle de découpe principale (±α2) avec le deuxième diamètre de lame de scie préajusté (D.2).
  5. Procédé selon la revendication 2, caractérisé en ce que le deuxième point d'extrémité (E2) constitue un point d'extrémité libre sans obstacle et le deuxième diamètre de lame de scie de la deuxième lame de scie (16.2) peut être ajusté entre un deuxième diamètre de lame de scie maximal (Dmax.2) et un deuxième diamètre de lame de scie minimal (Dmin.2), le deuxième diamètre de lame de scie maximal (Dmax.2) étant utilisé pour le calcul d'une deuxième position de stationnement.
  6. Procédé selon la revendication 5, caractérisé en ce que l'axe de pivotement (23) dans la deuxième position de stationnement présente une distance au deuxième point d'extrémité (E2) de h 2 , max ⋅ D max .2 − h 2 , max + δ ⋅ sin ± α 2 ,
    Figure imgb0002
     où h2,max = h(±α2, Dmax.2) = Dmax.2/2 - Δ - δ · cos(±α2) désigne la profondeur d'enfoncement maximale de la deuxième lame de scie (16.2) dans la pièce (24) dans le cas du deuxième angle de découpe principale (±α2) avec le deuxième diamètre de lame de scie maximal (Dmax.2).
  7. Procédé selon la revendication 6, caractérisé en ce que la scie murale (12) est positionnée, après la reprise de l'usinage commandé, dans une position de reprise qui correspond à la deuxième position de stationnement.
  8. Procédé selon la revendication 6, caractérisé en ce qu'avant la reprise de l'usinage commandé, le deuxième diamètre de lame de scie réel (Dreal.2) de la deuxième lame de scie (16.2) est entré et est utilisé pour le calcul d'une position de reprise.
  9. Procédé selon la revendication 8, caractérisé en ce que l'axe de pivotement (23), dans la position de reprise, présente une distance au deuxième point d'extrémité (E2) de h 2 ⋅ D real .2 / 2 − h 2 + δ ⋅ sin ± α 2 ,
    Figure imgb0003
    où h2 = h(±α2, Dreal.2) = Dreal.2/2 - Δ - δ · cos(±α2) désigne la profondeur d'enfoncement de la deuxième lame de scie (16.2) dans la pièce (24) dans le cas du deuxième angle de découpe principale (±α2) avec le deuxième diamètre de lame de scie réel (Dreal.2).
  10. Procédé selon l'une quelconque des revendications 1 et 2, caractérisé en ce que le deuxième point d'extrémité (E2) est défini en tant qu'obstacle et, avant le début de l'usinage commandé, une distance de montage (ΔMontage) est en outre établie, la distance de montage (ΔMontage) étant en outre utilisée pour le calcul d'une troisième à cinquième position de stationnement.
  11. Procédé selon la revendication 10, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale négatif (-α1) compris entre -180° et 0° et l'axe de pivotement (23), dans la troisième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D2/2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D2/2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  12. Procédé selon la revendication 10, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale positif (+α1) compris entre 0° et 90° et l'axe de pivotement (23), dans la troisième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D1/2 + δ·sin(α1)] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D1/2 + δ·sin(α1), D2/2 + δ·sin (α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D2/2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  13. Procédé selon la revendication 10, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale positif (+α1) compris entre 90° et 180° et l'axe de pivotement (23), dans la troisième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D1/2 + δ·sin(90°)] pour -180° ≤ -α2 ≤ 0°, et d'une valeur maximale de [D1/2 + ΔMontage, D2/2 + ΔMontage, D2/2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  14. Procédé selon l'une quelconque des revendications 11 à 13, caractérisé en ce que pour le calcul de la troisième position de stationnement pour le premier diamètre (D1) de la première découpe principale, le premier diamètre de lame de scie préajusté (D.1) de la première lame de scie (16.1) est utilisé, et pour le deuxième diamètre (D2) de la deuxième découpe principale, le deuxième diamètre de lame de scie préajusté (D.2) de la deuxième lame de scie (16.2) est utilisé.
  15. Procédé selon la revendication 14, caractérisé en ce que la scie murale (12), après la reprise de l'usinage commandé par l'unité de commande (29), est positionnée dans une position de reprise qui correspond à la troisième position de stationnement.
  16. Procédé selon l'une quelconque des revendications 11 à 13, caractérisé en ce que le deuxième diamètre de lame de scie peut être ajusté entre un deuxième diamètre de lame de scie maximal (Dmax.2) et un deuxième diamètre de lame de scie minimal (Dmin.2) et lors du calcul de la troisième position de stationnement pour le deuxième diamètre (D2) de la deuxième découpe principale, le deuxième diamètre de lame de scie maximal (Dmax.2) est utilisé.
  17. Procédé selon la revendication 16, caractérisé en ce que la scie murale (12), après la reprise de l'usinage commandé par l'unité de commande (29), est positionnée dans une position de reprise qui correspond à la troisième position.
  18. Procédé selon la revendication 16, caractérisé en ce qu'avant la reprise de l'usinage commandé, le deuxième diamètre de lame de scie réel (Dreal.2) de la deuxième lame de scie (16.2) est entré et utilisé pour le calcul d'une position de reprise.
  19. Procédé selon la revendication 18, caractérisé en ce que l'axe de pivotement (23), dans la position de reprise, présente une distance au deuxième point d'extrémité (E2) de Dreal.2/2 pour -180° ≤ -α2 ≤ 0°, de Dreal.2/2 +δ·sin(α2) pour 0° < α2 ≤ 90°, et de Dreal.2/2 + δ·sin(90°) pour 90° < α2 ≤ 180°.
  20. Procédé selon la revendication 10, caractérisé en ce qu'avant le début de l'usinage commandé, pour la première lame de scie (16.1) une première protection de lame (21.1) est définie avec une première largeur de protection de lame (B.1), la première largeur de protection de lame (B.1) étant constituée d'une première distance (Ba.1) de l'axe de rotation (19) à la première arête de protection de lame (71.1) et d'une deuxième distance (Bb.1) de l'axe de rotation (19) à la deuxième arête de protection de lame (72.1) et la deuxième distance (Bb.1) étant en outre utilisée pour le calcul d'une quatrième position de stationnement.
  21. Procédé selon la revendication 20, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale négatif (-α1) compris entre -180° et 0°, et l'axe de pivotement (23), dans la quatrième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, D2/2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, D2/2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  22. Procédé selon la revendication 20, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale positif (+α1) compris entre 0° et 90°, et l'axe de pivotement (23), dans la quatrième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, Bb.1 + δ·sin(α1)] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, Bb.1 + δ·sin(α1), D2/2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, Bb.1 + δ·sin(α1), D2/2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  23. Procédé selon la revendication 20, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale positif (+α1) compris entre 90° et 180°, et l'axe de pivotement (23), dans la quatrième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, Bb.1 + δ·sin(90°)] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, Bb.1 + δ·sin(90°), D2/2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [Bb.1 + ΔMontage, D2/2 + ΔMontage, Bb.1 + δ·sin(90°), D2/2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  24. Procédé selon la revendication 20, caractérisé en ce qu'avant le début de l'usinage commandé pour la deuxième lame de scie (16.2), une deuxième protection de lame (21.2) est définie avec une deuxième largeur de protection de lame (B.2), la deuxième largeur de protection de lame (B.2) étant constituée d'une première distance (Ba.2) de l'axe de rotation (19) à la première arête de protection de lame (71.2) et d'une deuxième distance (Bb.2) de l'axe de rotation (19) à la deuxième arête de protection de lame (72.2) et la deuxième distance (Bb.2) étant en outre utilisée pour le calcul de la cinquième position de stationnement.
  25. Procédé selon la revendication 24, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale négatif (-α1) compris entre -180° et 0° et l'axe de pivotement (23), dans la cinquième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  26. Procédé selon la revendication 24, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale positif (+α1) compris entre 0° et 90°, et l'axe de pivotement (23), dans la cinquième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.1 + δ·sin(α1)] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.1 + δ·sin(α1), Bb.2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.1 + δ·sin(α1), Bb.2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
  27. Procédé selon la revendication 24, caractérisé en ce que le bras de scie (17), avant l'interruption de l'usinage commandé, est disposé suivant un premier angle de découpe principale positif (+α1) compris entre 90° et 180°, et l'axe de pivotement (23), dans la cinquième position de stationnement, présente une distance au deuxième point d'extrémité (E2) d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.1 + δ·sin(90°)] pour -180° ≤ -α2 ≤ 0°, d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.1 + δ·sin(90°), Bb.2 + δ·sin(α2)] pour 0° < α2 ≤ 90° et d'une valeur maximale de [Bb.1 + ΔMontage, Bb.2 + ΔMontage, Bb.1 + δ·sin(90°), Bb.2 + δ·sin(90°)] pour 90° < α2 ≤ 180°.
EP15757272.8A 2014-09-08 2015-09-02 Procédé de commande d'un système de scie murale par sciage en long Active EP3191279B1 (fr)

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EP14003099.0A EP2993010A1 (fr) 2014-09-08 2014-09-08 Procédé de commande d'un système de scie murale par sciage en long
PCT/EP2015/070008 WO2016037911A1 (fr) 2014-09-08 2015-09-02 Procédé de commande d'un système de scie murale lors de la réalisation d'une coupe

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EP2993015A1 (fr) * 2014-09-08 2016-03-09 HILTI Aktiengesellschaft Procédé de commande d'un système de scie murale par sciage en long

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JPS49106678A (fr) * 1973-02-07 1974-10-09
DE19601522A1 (de) * 1996-01-17 1997-07-24 Hilti Ag Wandsäge und Sägeblatt
US6484711B2 (en) * 2001-02-23 2002-11-26 Multiquip, Inc. Automatic depth of cut control for concrete saw
DE102005000013A1 (de) * 2005-02-22 2006-08-31 Hilti Ag Steuerbare Wandsäge und Steuerverfahren
US20070163412A1 (en) * 2006-01-15 2007-07-19 Anthony Baratta Methods and apparatus for movable machining tools, including for wall saws
US7451757B2 (en) * 2006-03-07 2008-11-18 Ketterhagen Frederick A Concrete cutter
CN103097093B (zh) * 2010-09-01 2016-02-03 胡斯华纳有限公司 用于圆锯锯片的锯片防护装置以及墙锯
DE102011089878A1 (de) * 2011-12-23 2013-06-27 Hilti Aktiengesellschaft Vorrichtung zur Trennung eines Untergrundes und Verfahren zur Steuerung einer derartigen Trennvorrichtung
DE102013202445A1 (de) * 2013-02-14 2014-08-14 Hilti Aktiengesellschaft Verfahren zur Steuerung eines Gerätesystems beim Trennen eines Werkstückes entlang einer Trennlinie
DE102013202442B4 (de) * 2013-02-14 2014-09-25 Hilti Aktiengesellschaft Verfahren zur Steuerung eines Gerätesystems mit einem Werkzeuggerät und einer motorischen Vorschubeinrichtung
DE102013202754A1 (de) * 2013-02-20 2014-08-21 Hilti Aktiengesellschaft Vorrichtung zum Trennen eines Werkstückes entlang einer Trennlinie
DE102013217290B4 (de) * 2013-08-29 2020-07-23 Robert Bosch Gmbh Handwerkzeugmaschineninformationsvorrichtung

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US10821630B2 (en) 2020-11-03
EP2993010A1 (fr) 2016-03-09
JP2017532224A (ja) 2017-11-02
JP6479168B2 (ja) 2019-03-06
EP3191279A1 (fr) 2017-07-19
US20180169898A1 (en) 2018-06-21
WO2016037911A1 (fr) 2016-03-17

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