EP3292969A1 - Dispositif d'avance pour une carotteuse - Google Patents

Dispositif d'avance pour une carotteuse Download PDF

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Publication number
EP3292969A1
EP3292969A1 EP16188271.7A EP16188271A EP3292969A1 EP 3292969 A1 EP3292969 A1 EP 3292969A1 EP 16188271 A EP16188271 A EP 16188271A EP 3292969 A1 EP3292969 A1 EP 3292969A1
Authority
EP
European Patent Office
Prior art keywords
feed device
machine tool
connection
machine
parameter
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Withdrawn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
EP16188271.7A
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German (de)
English (en)
Inventor
Christian Sattler
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 EP16188271.7A priority Critical patent/EP3292969A1/fr
Publication of EP3292969A1 publication Critical patent/EP3292969A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B28D1/041—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 with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

Definitions

  • the present invention relates to a method for using a system comprising a machine tool, in particular a core drilling machine, with at least one sensor for detecting at least one parameter of the machine tool; a feed device for driving the machine tool along a machine stand, with at least one sensor for detecting at least one parameter of the feed device; a first connection for bi-directional exchange of the detected parameters between the machine tool and the feed device; and a second connection for supplying electric power to the machine tool, wherein the second connection extends at least partially through the feed device.
  • the present invention relates to a machine tool operable with the present method. Furthermore, the present invention relates to a feed device operable with the present method.
  • a so-called drill bit can be operated to make a hole in a material, such as a drill bit. Concrete, brickwork or the like to cut.
  • the core drilling machine generates a torque with the aid of an electric motor and transmits it via a shaft to the drill bit.
  • the drill bit has a plurality of cutting teeth to cut material from the material in a rotary motion with the torque transmitted to form a hole in the material.
  • the machine stand can be firmly connected to the substrate to be machined (material). Between the core drill and the machine stand there is a so-called feed device.
  • the feed device has its own drive and is connected to the core drill. With the help of the drive, the feed device can be moved along the machine stand. The core drilling machine is thereby moved by the feed device along the machine stand and in the material to be machined.
  • the drill bit can cut faster or slower in the material.
  • the electric motor of the core drill has to produce a higher speed.
  • the user of the core drilling machine must either increase the speed of the electric motor of the core drilling machine and thus the torque generated or reduce the feed speed of the feed device.
  • the user of the core drilling machine must first recognize that a hard material or currently a hard section of the material is cut.
  • the speed of the electric motor of the core drill and thus the torque generated must be increased. Without an increase in the rotational speed or the torque, the feed rate at the feed device must be reduced accordingly.
  • the user must adjust or adjust, in accordance with the nature of the material to be processed, alternately or simultaneously a multiplicity of values on the core drilling machine and / or the feed device.
  • An exchange of values and parameters between the core drilling machine and the feed device can be used for automatic adjustment between the core drilling machine and the feed device in order to be able to react accordingly to changes during the drilling process.
  • lines and interfaces plugs and sockets
  • Object of the present invention is therefore to solve the above problem and in particular to provide a method for using a system of machine tool and feed device available, with the data exchange between the machine tool and feed device facilitates and automation of Kernbohrvorgangs can be achieved.
  • the core drilling process can be done easier and faster.
  • the object is achieved in particular by a method for using a system comprising a machine tool, in particular a core drilling machine, with at least one sensor for detecting at least one parameter of the machine tool, a feed device for driving the machine tool along a machine stand, with at least one sensor for detecting at least a parameter of the feed device, a first connection for bi-directional exchange of the detected parameters between the machine tool and the feed device, and a second connection for supplying electric power to the machine tool, wherein the second connection extends at least partially through the feed device.
  • the object is achieved by providing a machine tool and a feed device operable with the method according to the invention.
  • the second line can be realized here as a cable connection.
  • a current value at the second connection By detecting a current value at the second connection, a high frequency of data can be detected and a high data transmission rate can be generated. Real-time data acquisition is thus possible. As a result, a rapid control is possible with a clock rate of less than 20 ms and 50 Hz of the feed device in dependence on the power consumption of the electric motor of the machine tool.
  • the second connection can be realized in the form of a power cable.
  • the first connection is designed in the form of a wireless connection.
  • This makes it possible to dispense with a line or a cable between the machine tool and the feed device.
  • a cable or cable can be dispensed with the same interfaces or sockets on the devices, so space and cost can be saved.
  • a data exchange between the machine tool and the feed device may also be possible for a data exchange between the machine tool and the feed device to be provided with a so-called modulation on the first connection designed as a network connection or else an additional pure data line.
  • the wireless connection may be implemented in the form of a radio connection (so-called wireless connection) or optical connection. It is particularly possible that the wireless connection is designed as a Bluetooth, RFID, WLAN or NFC connection.
  • Fig. 1 shows a machine tool 1 according to the invention for operating the method according to the invention.
  • the machine tool 1 is designed in the form of a core drilling machine. However, it is also possible that the machine tool 1 is realized in the form of a drill, circular saw or the like.
  • the machine tool 1 is releasably connected to a feed device 2.
  • the feed device 2 is in turn movably positioned on a machine stand 3, so that the feed device 2 together with the machine tool 1 configured as a core drilling machine can be moved along the machine stand 3.
  • the machine stand 3 essentially serves to hold and guide the machine tool 1 during the core drilling operation.
  • the combination of the machine tool 1 and the feed device 2 may be referred to as a system.
  • the machine tool 1 embodied as a core drilling machine essentially comprises a housing 4, an electric motor, a transmission, a drive shaft and output shaft, a tool holder 5, a first number of sensors 6, a first transmitting and receiving unit 7 and a first control unit 8.
  • the electric motor , The transmission and the drive and output shaft are not shown in the figures.
  • the electric motor includes a stator and a rotor. By rotating the rotor relative to the stator, a torque is generated. The torque generated in the electric motor is transmitted via the output shaft and gear to the tool holder 5. The tool holder 5 finally transmits the torque to a tool holder 5 connected to the tool 9.
  • the tool 9 is configured in the figures as a drill bit. However, it is also possible that the tool 9 is another suitable tool, for example a saw blade when using a circular saw as a machine tool.
  • the parameters may be a signal to the state of the system connection.
  • a signal from a sensor at the connection or interface between the machine tool 1 and the feed device 2 is generated when the machine tool 1 and feed device 2 are properly connected.
  • the proper connection of the two devices can also be referred to as "pairing". In an improper connection of the two devices 1, 2, no signal is generated accordingly.
  • the parameter may be device-specific characteristic values, such as device type, voltage (voltage), tilt current or the like.
  • the parameter may be information about the spatial direction of the machine tool 1 and / or feed device 2. To detect these parameters, for example, a so-called G-sensor is provided.
  • the parameters may be the speed of the electric motor of the machine tool 1, the transmission speed of the machine tool 1, the torque generated in the electric motor, the temperature of the electric motor of the machine tool 1, information about the selected or engaged gear, the measured voltage value , the measured current value, exceeding a tipping point, the information on the triggering of a slip clutch or the like act.
  • the sensors 6 are connected to the first control unit 8 and can send the detected parameters to the first control unit 8.
  • the feed device 2 includes an electric motor, a drive gear 10, a second number of sensors 11, a second control unit 12 and a second transmitting and receiving unit 13.
  • the electric motor of the feed device 2 is not shown in the figures.
  • the electric motor includes a stator and a rotor. By rotating the rotor relative to the stator, a torque is generated. The generated torque is transmitted to the drive gear 10.
  • the drive gear 10 engages in a rack 14 of the machine stand 3 and thereby moves the feed device 2 either in the direction of arrow A (in Fig. 1 down) or in the direction of arrow B (in Fig. 1 up).
  • the machine tool 1 is releasably connected to the feed device 2, so that the machine tool 1 can be moved by the feed device 2 along the machine frame 3.
  • the second number of sensors 11 is used to detect different parameters of the feed device 2.
  • the parameters may be, for example, a signal to the state of the system connection.
  • a signal from a sensor at the connection or interface between the machine tool 1 and the feed device 2 is generated when the machine tool 1 and feed device 2 are properly connected. In an improper connection of the two devices 1, 2, no signal is generated accordingly.
  • the parameters may be, for example, the rotational speed of the electric motor of the feed device 2, the torque generated by the electric motor of the feed device 2, the measured electrical voltage at the electric motor of the feed device 2, the measured electric current at the electric motor of the feed device 2 Speed of the drive gear 10, the temperature of the feed device 2 and the like act.
  • a water supply for the machine tool 1 may be provided, so that during use of the core drilling machine 1 in a core drilling process, the tool designed as a drill bit 9 is rinsed and cooled.
  • the volume flow of the water supply is controlled by a valve which is positioned on the feed device 2.
  • the control of the valve via the feed device 2.
  • the feed device 2 includes a sensor for detecting or measuring an electric current.
  • the sensors 11 are connected to the second control unit 12 and can send the detected parameters to the second control unit 12.
  • a first and second connection is provided between the machine tool 1 and feed device 2, which is designed as a core drilling machine.
  • the first connection serves for a bi-directional exchange of the parameters detected by the sensors 6, 11 between the machine tool 1 and the feed device 2.
  • the first transmitting and receiving unit 7 is connected to the first control unit 8 and configured in the form of a transceiver.
  • parameters are detected by the first number of sensors 6 and sent to the first control unit 8.
  • the parameters can be processed or stored in the first control unit 8 and / or directed to the transmitting and receiving unit 7.
  • the first transmitting and receiving unit 7 sends the parameters to the second transmitting and receiving unit 13 of the feed device 2. Subsequently, the received parameters are sent to the second control unit 12 and processed.
  • the second transmitting and receiving unit 13 is also designed in the form of a transceiver. The first connection is thus realized by the two transmitting and receiving unit 7, 13.
  • the second control unit 12 stores and / or processes the parameters which are received both by the sensors 6 of the machine tool 1 and by the sensors 11 of the feed device 2.
  • the second control unit 12 is configured to control and regulate both the feed device 2 and the machine tool 1.
  • a control or control variable is sent from the second control unit 12 to the second transmitting and receiving unit.
  • the second transmitting and receiving unit 13 of the feed device 1 sends the leadership or
  • the control or control variable is sent to the first control unit 8 of the machine tool 1, so as to regulate at least one manipulated value of the machine tool 1. It is also possible that a parameter, which was detected by a sensor 6 of the machine tool 1, is sent to the first control unit 8 of the machine tool 1.
  • the first control unit 8 processes the detected parameter and regulates at least one manipulated value of the machine tool 1.
  • a control variable is sent to the first transmitting and receiving unit 7 from the first control unit 8 of the machine tool 1.
  • the first transmitting and receiving unit 7 of the machine tool 1 sends the command or control variable to the second transmitting and receiving unit 13 of the feed device 2.
  • the command or control variable is sent to the second control unit 12 of the feed device 2, so at least one Control value of the feed device 2 to regulate.
  • a parameter which was detected by a sensor 11 of the feed device 2
  • the second control unit 12 processes the detected parameters and regulates at least one control value of the feed device 2.
  • This control value can be, for example, the speed of the electric motor of the feed device 2, which in turn regulates the feed speed of the feed device 2 relative to the machine stand 3 or material W.
  • Both the machine tool 1 and the feed device 2 are supplied with electrical current by means of the second connection S.
  • the power supply of the machine tool 1 and the feed device 2 via the second connection S in the form of a single power cable S is realized.
  • more than just a power cable S is provided for supplying the electric motor of the machine tool 1 with electric current.
  • the power cable S is connected to a power network (via a power outlet). Neither the outlet nor the power network are shown in the figures.
  • the power cable S initially runs in or through the feed device 2, so that the feed device 2 and in particular the electrical load (eg electric motor) are supplied in the feed device 2 with electric current.
  • the power cable S continues to the machine tool 1 in order to supply power to the machine tool 1 or the electrical consumers in the machine tool (eg electric motor or display devices).
  • a sensor 15 is provided, which detects at least one value of the current to the electric motor of the Machine tool 1 passes or is obtained from the electric motor of the machine tool 1.
  • the current sensor 15 is connected to the second control unit 12 of the feed device 2, so that the second control unit 12 of the feed device 2, the current can be detected, which reaches the electric motor of the machine tool 1.
  • the at least one value of the current is meant in particular the current.
  • the configured as a power cable S second connection S does not necessarily have to run through the feed device 2.
  • the sensor 15 detects the at least one current value in order to send it to the second control unit 12 of the feed device 2. It is therefore also possible that the current sensor 15 for detecting the at least one current value (current or voltage) is connected to the second connection S and the control unit 12 of the feed device 2. The current sensor 15 can therefore also be positioned outside the feed device 2.
  • the feed device 2 is designed such that the rotational speed of the electric motor of the feed device 2 can be regulated in accordance with the current value of the second connection S, which is detected by the current sensor 15.
  • the higher the detected current value the higher the rotational speed of the electric motor of the machine tool 1 and the higher the torque generated by the electric motor of the machine tool 1, which in turn the rotational speed of the electric motor of the feed device 2 and consequently the feed speed of the feed device. 2 is reduced.
  • the feed device 2 is designed so that the feed speed of the feed device 2 can also be controlled in dependence on the parameters which are used by the other sensors 11, i. except for the current sensor 15, are detected.
  • the feed speed of the feed device 2 can also be controlled as a function of the parameters, which are detected by the sensors 6 of the machine tool 1 and sent via the first connection (by radio) to the feed device 2.
  • the drill bit 9 driven by the core drilling machine 1 cuts at a first speed into a material W to be machined.
  • the material W is reinforced concrete with reinforcing iron or iron reinforcements E.
  • the electric motor of the machine tool 1 rotates at a first speed and thereby generates a first torque on the drill bit 9.
  • the feed device 2 moves the core drill 1 with the rotating drill bit 9 at a first speed in Arrow direction A and cuts a cylindrical hole in the material W.
  • the drill bit 9 rotates this purpose in the direction of rotation C.
  • the machine tool 1 must generate a higher torque in order to produce a constant cutting performance on the drill bit 9.
  • the electric motor of the machine tool 1 requires this a higher current.
  • the feed speed of the feed device 2 must be reduced.
  • the sensor for detecting a current value for the electric motor of the core drilling machine 1 in the second connection S detects the current value during the entire core drilling operation and sends it to the second control unit. The current value at the beginning of the core drilling operation, i.
  • the electric motor of the core drilling machine 1 must produce a higher torque for a constant cutting power than at the beginning of the core drilling operation.
  • the electric motor of the core drilling machine 1 requires a higher current value than at the beginning of the core drilling operation.
  • the sensor 15 for detecting a current value for the electric motor of the core drilling machine 1 in the second connection S now detects a higher current value and sends this current value to the second control unit 12.
  • the second control unit 12 compares the higher current value when the drill bit 9 sawn a harder material must, with the lower value, when the drill bit 9 sawed a softer material.
  • the second control unit 12 adapts the feed rate to the increased current value, ie the feed rate is reduced accordingly.
  • the adaptation takes place with the help of a so-called look-up table or by means of stored data. However, it is also possible that the adaptation takes place with the aid of a stored algorithm. However, if the reinforcing iron E is sawn through and thus again softer material to edit W, the torque can be reduced accordingly, the power consumption of Reduced electric motor of the core drilling machine 1 and also the feed speed of the feed device 2 are increased accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP16188271.7A 2016-09-12 2016-09-12 Dispositif d'avance pour une carotteuse Withdrawn EP3292969A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16188271.7A EP3292969A1 (fr) 2016-09-12 2016-09-12 Dispositif d'avance pour une carotteuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16188271.7A EP3292969A1 (fr) 2016-09-12 2016-09-12 Dispositif d'avance pour une carotteuse

Publications (1)

Publication Number Publication Date
EP3292969A1 true EP3292969A1 (fr) 2018-03-14

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EP16188271.7A Withdrawn EP3292969A1 (fr) 2016-09-12 2016-09-12 Dispositif d'avance pour une carotteuse

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EP (1) EP3292969A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3663061A1 (fr) * 2018-12-05 2020-06-10 Hilti Aktiengesellschaft Procédé de fonctionnement d'un système et système
EP3663876A1 (fr) * 2018-12-05 2020-06-10 Hilti Aktiengesellschaft Procédé de fonctionnement d'un système et système
EP3736096A1 (fr) * 2019-05-09 2020-11-11 Hilti Aktiengesellschaft Procédé de commande d'un fonctionnement d'un appareil auxiliaire dans un système de travail
WO2020260093A1 (fr) * 2019-06-27 2020-12-30 Hilti Aktiengesellschaft Procédé pour repérer un événement de déclenchement de limiteur de couple à friction, ainsi que machine-outil
WO2021058522A1 (fr) * 2019-09-25 2021-04-01 Hilti Aktiengesellschaft Systèmes et procédés destinés à la sécurité de données dans des outils électriques
WO2022043151A1 (fr) * 2020-08-26 2022-03-03 Hilti Aktiengesellschaft Machine-outil permettant l'usinage d'un substrat et procédé d'analyse d'une composition du substrat
EP4063051A1 (fr) * 2021-03-24 2022-09-28 Hilti Aktiengesellschaft Dispositif d'avance pour un appareil de carottage, ainsi que système comprenant un dispositif d'avance et un appareil de carottage
WO2023237363A1 (fr) * 2022-06-07 2023-12-14 Hilti Aktiengesellschaft Machine-outil à axe de sortie et axe de moteur parallèles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205827A1 (de) * 2013-04-03 2014-10-09 Hilti Aktiengesellschaft Vorschubeinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205827A1 (de) * 2013-04-03 2014-10-09 Hilti Aktiengesellschaft Vorschubeinrichtung

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3663061A1 (fr) * 2018-12-05 2020-06-10 Hilti Aktiengesellschaft Procédé de fonctionnement d'un système et système
EP3663876A1 (fr) * 2018-12-05 2020-06-10 Hilti Aktiengesellschaft Procédé de fonctionnement d'un système et système
WO2020114774A1 (fr) * 2018-12-05 2020-06-11 Hilti Aktiengesellschaft Procédé de fonctionnement d'un système et système
EP3736096A1 (fr) * 2019-05-09 2020-11-11 Hilti Aktiengesellschaft Procédé de commande d'un fonctionnement d'un appareil auxiliaire dans un système de travail
WO2020225000A1 (fr) * 2019-05-09 2020-11-12 Hilti Aktiengesellschaft Procédé permettant de commander le fonctionnement d'un dispositif auxiliaire dans un système de travail
EP3756823A1 (fr) * 2019-06-27 2020-12-30 Hilti Aktiengesellschaft Procédé de détection d'un état d'une machine-outil ainsi que machine-outil
WO2020260093A1 (fr) * 2019-06-27 2020-12-30 Hilti Aktiengesellschaft Procédé pour repérer un événement de déclenchement de limiteur de couple à friction, ainsi que machine-outil
CN113825596A (zh) * 2019-06-27 2021-12-21 喜利得股份公司 用于检测滑动离合器释放事件的方法以及动力工具
US20220274244A1 (en) * 2019-06-27 2022-09-01 Hilti Aktiengesellschaft Method for Detecting a Slip Clutch Release Event, and Power Tool
JP7450643B2 (ja) 2019-06-27 2024-03-15 ヒルティ アクチエンゲゼルシャフト スリップクラッチ解放イベントを検出するための方法及び電動工具
WO2021058522A1 (fr) * 2019-09-25 2021-04-01 Hilti Aktiengesellschaft Systèmes et procédés destinés à la sécurité de données dans des outils électriques
WO2022043151A1 (fr) * 2020-08-26 2022-03-03 Hilti Aktiengesellschaft Machine-outil permettant l'usinage d'un substrat et procédé d'analyse d'une composition du substrat
EP4063051A1 (fr) * 2021-03-24 2022-09-28 Hilti Aktiengesellschaft Dispositif d'avance pour un appareil de carottage, ainsi que système comprenant un dispositif d'avance et un appareil de carottage
WO2023237363A1 (fr) * 2022-06-07 2023-12-14 Hilti Aktiengesellschaft Machine-outil à axe de sortie et axe de moteur parallèles

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