EP3925749A1 - Système de coupe pourvu d'une scie et procédé d'introduction d'une coupe - Google Patents

Système de coupe pourvu d'une scie et procédé d'introduction d'une coupe Download PDF

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Publication number
EP3925749A1
EP3925749A1 EP20180824.3A EP20180824A EP3925749A1 EP 3925749 A1 EP3925749 A1 EP 3925749A1 EP 20180824 A EP20180824 A EP 20180824A EP 3925749 A1 EP3925749 A1 EP 3925749A1
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EP
European Patent Office
Prior art keywords
saw
cut
cutting system
length
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20180824.3A
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German (de)
English (en)
Inventor
Dragan Stevic
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.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP20180824.3A priority Critical patent/EP3925749A1/fr
Publication of EP3925749A1 publication Critical patent/EP3925749A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a cutting system with a saw for making a cut in a substrate, the cutting system comprising a display device for displaying a remaining length of the cut.
  • the invention relates to a method for making a cut in a substrate to be processed, wherein a desired or maximum permissible length of a cut can be entered.
  • a basic idea on which the invention is based consists in the visualization of the remaining length of a cut to be made, the visualization being made possible in particular with a display device.
  • Saws are used to carry out cutting operations.
  • Saws comprise a mostly circular saw blade which can produce a cut in a substrate to be processed with a rotating movement when it comes into contact with the substrate in the case of rotation.
  • the cut to be made should have a predetermined length that is as precise as possible. This is especially the case if overcuts are not allowed, for example due to legal or other requirements.
  • the accurate completion of a cut is not always trivial, however, especially not when sawing on a construction site or in the construction industry.
  • the view of the working area of the saw or the saw blade is often not clear, but can rather be clouded by dust or a mixture of water and dust.
  • the rotational movement of the saw blade which is responsible for creating the cut, can lead to changes in the length of the cut.
  • non-linear effects on the cutting length are known in the prior art when the The angle of the saw arm changes.
  • the saw arm can also be referred to as the swivel arm of the saw.
  • the object on which the present invention is based is to overcome the disadvantages of the prior art described above and to specify a cutting system with a saw and a method for making a cut, with which the adherence to predetermined cutting lengths is facilitated in narrow accuracy ranges .
  • the exact execution of cuts with a predetermined length is to be simplified with the help of the invention, especially in poor visibility conditions, which can be caused, for example, by water, dust, existing blade guards or a large distance between the operator and the saw.
  • a cutting system that includes a saw for making a cut in a substrate.
  • the cutting system is characterized in that it comprises a display device for displaying a remaining length of the cut.
  • the total length of the cut to be made can be entered by an operator of the saw.
  • the saw can comprise input means which will be described later.
  • the user of the saw enters a distance from the center point of a saw head to the end of the cut to be made.
  • the saw center point on the saw head can be marked with a marking.
  • the remaining cut length preferably corresponds to the difference between the total length of the cut to be made and the length of the cut that has already been made.
  • the remaining length of the cut is 60 cm.
  • the remaining cutting length can also be defined, for example, as the distance between the point at which the saw blade touches the surface of the substrate to be processed and the end of the cut.
  • the invention can preferably also be used to display the remaining distance to the end of the cut can be used, the display also being made by the display device.
  • the point at which the saw blade touches the surface of the substrate to be processed can preferably also be referred to as the point of contact in the context of the invention.
  • the substrate to be processed is preferably a concrete surface, which is in Fig. 2 is identified by the reference character U.
  • this remaining cut length is displayed as an alphanumeric value on the display device.
  • the visualization can include a graphic or an icon in order to make it easier for the operator to capture the information to be conveyed.
  • the operator can optimally support the operation of the saw and the precise execution of a cut with an exact length can be made much easier. Making it easier to make a cut with an exact length plays an important role, particularly in those areas of application in which the operator's view of the saw or its working area can be restricted. Tests have shown that the ability to visualize a remaining cutting length can help to improve the quality of sawing or cutting work, especially in the construction industry and on construction sites, as poor visibility of the work area often coincides with strict requirements for the accuracy of a cut or its cutting length.
  • the saw of the proposed cutting system comprises, in particular, a saw blade, the saw blade being configured to perform a rotating movement about an axis, the saw blade also being able to make a cut in a substrate when it comes into contact with in the case of rotation reaches a substrate to be processed. It is within the meaning of the invention that the remaining length of the cut can be specified with an accuracy of millimeters (mm).
  • the invention relates in particular to a cutting system with a saw, with which a possibility for visualizing the remaining length of the cut can be provided.
  • the cutting system preferably comprises a display device for displaying the remaining cutting length.
  • the display device can in particular be part of a remote control, which can be part of the proposed cutting system.
  • the display device can preferably be designed as a display, screen, monitor, touch screen or screen, without being restricted thereto. It is very particularly preferred in the context of the invention that the display device is set up to display the remaining cutting length. This can be done graphically and / or by means of numerical values, for example. For example, the display device can display a dashboard on which various information can be displayed for the operator of the saw. If the display device is designed as a touch screen, the display device can moreover be used as an input means within the meaning of the invention.
  • the saw is set up to determine the remaining length of the cut.
  • the remaining length of the cut preferably corresponds to the difference between the total length of the cut, which can be entered by an operator of the saw, and the length of the cut already sawed during the current cutting process.
  • the length of the cut already sawn in the course of the current cutting process can preferably also be referred to as "cut already covered” or "cut length already covered”. It is preferred in the context of the invention that the saw is set up to determine this cutting length that has already been covered.
  • the saw of the proposed cutting system comprises a motor and a feed device.
  • the feed device is preferably set up to move the saw along the planned cut, in particular to the front, ie in the cutting direction, or to the rear.
  • the corresponding cutting system can furthermore comprise a rail system, wherein the saw can move forwards or backwards in a lateral direction along the rail system.
  • a linear position of the saw can be set to zero. In this case, this position information can advantageously be obtained or provided by a motor of the feed device.
  • the positions of the motor of the saw and of the feed device are preferably used in order to determine the cutting length already covered.
  • the position of the motor of the saw is, in particular, the position of the swivel arm motor, while the motor of the feed device is preferably referred to as a "feed motor" in the context of the invention.
  • a feed motor it is particularly preferred to use the positions of the motors, the gear ratios, the geometry of the saw, the swivel arm and the rail system along which the saw moves during cutting to determine the position of the saw.
  • the diameter of the saw blade can be used to determine the point of contact between the saw blade and the subsurface surface.
  • the saw can form the difference between the preferably entered total length of the cut to be made and the length of the cut already sawn during the current cutting process; In the context of the invention, this difference preferably corresponds to the remaining length of the cut to be made.
  • the length of cut that has already been covered can be determined, for example, with a suitable sensor system.
  • the saw can include a distance sensor with which the length of cut that has already been covered can be determined.
  • the user of the saw configures a distance from the center of the saw head to the end of the cut.
  • the current position of the saw head can be initialized, for example by setting it to zero.
  • the sawing or cutting system can preferably include a remote control which is set up to determine the positions of the swivel arm motor and the feed motor.
  • the remote control can preferably be designed as a radio remote control.
  • the determination of the positions of the swivel arm motor and the feed motor by the remote control is preferably carried out cyclically, i.e. at regularly recurring intervals.
  • the motor positions, the diameter of the saw blade, and the geometry data of the saw or the rail system are used to calculate or derive the values required for visualizing the remaining length of the cut to be performed.
  • the remaining length of the cut is measured in real time and displayed on the display device.
  • the saw is preferably set up to determine the cutting length already covered continuously or at time intervals of less than 1 ms and to further process it using information technology. In this way, the remaining cutting length can be made available continuously or at time intervals of 100 ms, for example, for visualization by the display device.
  • the saw of the proposed cutting system comprises a saw head and a saw blade, the saw head being set up to perform a linear movement and the saw blade being set up to perform a rotary movement.
  • the linear movement of the saw head can preferably be used to advance the saw in relation to the substrate to be processed, while the saw blade penetrates the substrate at a cutting depth and generates the planned cut through its rotational movement.
  • a cutting system which, in addition to the saw, can include, for example, a rail system for guiding the saw and a remote control for controlling the saw.
  • the remote control of the cutting system can function as a display device.
  • the display device can in particular be arranged on the remote control, the remote control in the context of the invention preferably also being referred to as wireless remote control (WRC).
  • WRC wireless remote control
  • the cutting system can furthermore comprise a feed device which is set up to move the saw forwards or backwards in the cutting direction along a rail of the rail system. It is preferred in the context of the invention that the cutting length is entered on the feed device. Instead of the length of the cut, for example, the distance between the saw and the end of the cut can also be entered.
  • the saw is set up to take into account the linear movement of the saw head and / or the rotational movement of the saw blade when determining the remaining length of the cut.
  • the positions of the swivel arm motor and the feed motor can be determined with the aid of the swivel arm electronics or with the aid of the feed electronics. Hall sensors, for example, can be used for this purpose.
  • the saw has swivel arm electronics that are set up to determine the position of the swivel arm motor.
  • the feed device can have feed electronics which are set up to determine the position of the feed motor.
  • the Hall sensors are each arranged on the motors.
  • the saw comprises means with which a length of the cut can be entered.
  • these means can be referred to as input means.
  • the length to be entered can preferably be a desired, predetermined or permissible length of the cut to be made.
  • a desired length can be, for example, a cut length that the operator wishes to cut for the cut on the basis of the present initial situation.
  • a predetermined cutting length can result, for example, from plans, construction drawings or specifications, while permissible cutting lengths can result, for example, from legal, official or similar specifications.
  • the input means can be, for example, a keyboard, an input screen, a touch screen, keys or the like, without being restricted thereto. Voice input or the like is also conceivable.
  • the desired total length be entered of the cut to be made is made with an external input device.
  • an external input device for example, mobile communication devices such as smartphones, tablets, handhelds, palms, notebooks, laptops or the like can be used as external input devices.
  • an operator of the saw can enter a desired overall length of the cut to be cut into the saw using the input means.
  • the input means are used to input a distance from the center point of the saw to the end of the cut.
  • the saw preferably includes a control device for evaluating the data entered and the data determined by the saw, the control device being set up to process the corresponding data together in such a way that the remaining length of the cut to be cut is determined and displayed or visualized on the display device can be.
  • the control device is set up to process the corresponding data together in such a way that the remaining length of the cut to be cut is determined and displayed or visualized on the display device can be.
  • data or measured values are exchanged between the components of the saw or the sawing system in a wired and / or wireless manner.
  • the saw can have the appropriate data lines or means for wireless communication.
  • the saw comprises a stop mechanism, the stop mechanism being configured to end the operation of the saw when the remaining length of the cut is zero. It is preferred in the context of the invention that the stop mechanism is set up to end the operation of the saw blade in particular when the end of the cut has been reached according to the input of the operator.
  • the stop function can be switched on or off by the operator. In the context of the invention, this preferably means that the operator of the saw can decide whether the saw should be operated with the stop mechanism or not.
  • the stop function represents a selectable and optionally switchable function of the saw which, when it is switched on, can preferably automatically end a cut or a cutting process of the saw if the corresponding condition is met.
  • the stop function can end the operation of the saw, preferably automatically and advantageously without any action on the part of the operator of the saw, when the length of cut covered corresponds to the entered total length of the cut to be cut.
  • the stop function is preferably set up to end an operation of the saw or the saw blade when the total length of the to Cut is reached. This enables the invention to effectively avoid an overlap or an impermissible or undesired overcut, since the cut or the cutting process preferably ends automatically when the planned and previously entered end of the cut is reached precisely.
  • An essential advantage of the proposed method is that a remaining length of the cut can be visualized with a display device of the proposed cutting system.
  • the length of the cut to be made to be entered is preferably the desired, maximum permissible or specified total length of the planned cut.
  • the input can preferably be made using the described input means of the saw.
  • the length of the cut already covered is recorded and used to adapt the visualized value on the display device.
  • the data are preferably collected in such a way that the remaining cutting length can be visualized in real time on the display device.
  • the data such as the length of the cut already covered, can preferably be collected continuously and used for the preferably continuous adjustment of the visualized value on the display device.
  • the method includes the additional step that the cutting process is ended when the remaining length of the cut is zero.
  • the saw can preferably comprise a stop mechanism which is set up to end the operation of the saw when an end of the cut or the total cut length has been reached according to the input of the operator.
  • FIG 1 shows a preferred embodiment of the proposed cutting system (110).
  • the cutting system (100) comprises a saw (10) with a saw head (16) and a saw blade (12), the saw head (16) being configured to perform a linear movement and the saw blade (12) being configured to perform a rotational movement to execute.
  • the linear movement of the saw head (16) can preferably take place along a rail or along a rail system (14), which can also be part of the proposed cutting system (100).
  • the rail system (14) is preferably designed to guide the saw (10) so that a particularly straight cut can be made with the rail system (14).
  • the rotational movement of the saw blade (12) of the saw (10) is preferably carried out about an axis of rotation which runs through a center point of the saw blade (12) and which is out of the plane of the figure Fig. 1 protrudes.
  • the cutting system (100) comprises a display device (18) for displaying a remaining length of the cut.
  • the display device (18) can in particular form part of a remote control (22) with which a user can control or operate the saw (10) from a safe distance.
  • the remote control (22) can further comprise input means (24) with which a length of the cut or a distance between the center of the saw (10) and the end of the cut can be input.
  • the input means (24) can be designed as buttons, switches and / or input panels, for example.
  • the communication connection (26) is designed as a radio connection.
  • all other types of communication connections such as, for example, Bluetooth or the like, are also preferred for the purposes of the invention.
  • the communication connection (26) can in particular be wireless. In other refinements of the invention, the communication connection (26) can also be wired.
  • the proposed cutting system (100) can comprise a feed device (20), the feed device (20) being set up to move the saw (10) along the rail system (14).
  • the remote control (22) can preferably be designed to control the saw (10) and / or the feed device (20).
  • Fig. 2 shows a further preferred embodiment of the proposed cutting system (100).
  • the reference number 1 symbolizes the position of the saw head (16).
  • the reference number 2 symbolizes the position of the end of the cut, that is to say the end region of the cut that is to be made with the saw (10) of the cutting system (100).
  • Reference number 3 symbolizes the position of the point of intersection or contact between the saw blade (12) and the substrate to be processed.
  • the point of contact is preferably the point at which the saw blade (12) of the saw (10) touches the surface of the substrate to be processed.
  • Reference symbol X symbolizes the distance between the saw head (16) or its position and the end of the cut, while reference symbol Y represents the distance between the contact point defined above and the end of the cut.
  • this distance Y is preferably also referred to as the “distance between the intersection of the saw blade and the subsurface - the end of the cut”.
  • the reference symbol U symbolizes the subsurface to be processed with the saw (10).
  • the arrow above the rail system (14) symbolizes the working direction of the saw (10), into which the saw (10) is moved by the feed device (20)
  • the reference symbol X stands for the distance between positions 1 and 2
  • the reference symbol Y stands for the distance between positions 2 and 3.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
EP20180824.3A 2020-06-18 2020-06-18 Système de coupe pourvu d'une scie et procédé d'introduction d'une coupe Withdrawn EP3925749A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20180824.3A EP3925749A1 (fr) 2020-06-18 2020-06-18 Système de coupe pourvu d'une scie et procédé d'introduction d'une coupe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20180824.3A EP3925749A1 (fr) 2020-06-18 2020-06-18 Système de coupe pourvu d'une scie et procédé d'introduction d'une coupe

Publications (1)

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EP3925749A1 true EP3925749A1 (fr) 2021-12-22

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EP20180824.3A Withdrawn EP3925749A1 (fr) 2020-06-18 2020-06-18 Système de coupe pourvu d'une scie et procédé d'introduction d'une coupe

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1693173A1 (fr) * 2005-02-22 2006-08-23 HILTI Aktiengesellschaft Machine à scier des parois commandable et procédé de commande
EP2607003A1 (fr) * 2011-12-23 2013-06-26 HILTI Aktiengesellschaft Dispositif de séparation d'un sous-sol et procédé de commande d'un tel dispositif de séparation
DE102013202754A1 (de) * 2013-02-20 2014-08-21 Hilti Aktiengesellschaft Vorrichtung zum Trennen eines Werkstückes entlang einer Trennlinie
US20170282406A1 (en) * 2014-09-08 2017-10-05 Hilti Aktiengesellschaft Method for Controlling a Wall Saw System During the Creation of a Separation Cut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1693173A1 (fr) * 2005-02-22 2006-08-23 HILTI Aktiengesellschaft Machine à scier des parois commandable et procédé de commande
EP2607003A1 (fr) * 2011-12-23 2013-06-26 HILTI Aktiengesellschaft Dispositif de séparation d'un sous-sol et procédé de commande d'un tel dispositif de séparation
DE102013202754A1 (de) * 2013-02-20 2014-08-21 Hilti Aktiengesellschaft Vorrichtung zum Trennen eines Werkstückes entlang einer Trennlinie
US20170282406A1 (en) * 2014-09-08 2017-10-05 Hilti Aktiengesellschaft Method for Controlling a Wall Saw System During the Creation of a Separation Cut

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