WO2022171444A1

WO2022171444A1 - Method for providing information regarding an anchor fastening

Info

Publication number: WO2022171444A1
Application number: PCT/EP2022/051824
Authority: WO
Inventors: Thomas Buck; Stefano Delfini; Tjalf Pirk; Gerd Scheying; Wolfgang PLEUGER
Original assignee: Robert Bosch Gmbh
Priority date: 2021-02-12
Filing date: 2022-01-27
Publication date: 2022-08-18
Also published as: DE102021201341A1; EP4291360A1

Abstract

The invention relates to a method for providing information regarding an anchor fastening of an anchoring device, comprising the following steps: - detecting a borehole position variable; - providing the borehole position variable to a computer device; - detecting a borehole variable; - providing the borehole variable to a computer device; - detecting an anchor setting variable; - detecting an anchor fastening variable; - providing the anchor setting variable and/or the anchor fastening variable to the computer device; - determining information regarding the anchor state and/or information regarding the progress of the anchor fastening by means of the computer device.

Description

Method of providing information about an anchor attachment

State of the art

Disclosure of Invention

The invention relates to a method for providing information about an anchor attachment of an anchor device, comprising the following steps:

- detecting a borehole position parameter;

- providing the wellbore position parameter to a computing device;

- detection of a borehole parameter,

- providing the wellbore index to a computing device;

- Detection of an anchor setting size;

- Detection of an anchor fastening parameter;

- providing the anchor setting variable and/or the anchor fastening characteristic to the computing device;

- determination of anchor status information and/or anchor attachment progress information by the computing device. An optimal fastening of the anchoring device can advantageously be realized in this way.

In the context of this application, an anchor device is to be understood in particular as an attachment that is used in construction, such as an anchor or a dowel. An anchor is to be understood in particular as a component or an arrangement of components for the secure connection or anchoring of components. The armature is preferably made of a tensile material, preferably a metal. The anchor is designed to be fastened in a borehole. In particular, the anchor is designed to be connectable to the material in which the borehole is arranged in a non-positive and/or positive manner. Alternatively, it is also conceivable that the anchor is designed to be cohesively connectable to the material in which the borehole is arranged. The borehole is designed in particular as a substantially cylindrical borehole. “Provide” is to be understood, in particular, as meaning that the computer device is given the appropriate quantities—in the form of data—or is sent signals in terms of technology. In one embodiment of the method, the corresponding variables can be provided by reading in from a file in the computer device. In an alternative or additional embodiment of the method, the quantities can be provided using a signal transmission to the computing device.

The data, in particular the borehole position parameter, the borehole parameter, the

Anchor setting variable and/or the anchor fastening characteristic is provided to one or more computing devices. In this context, a computer device should preferably be understood to mean a device that processes data using programmable calculation rules. The computing device can be embodied, for example, as a computer, as a laptop, as a computer network, as a cloud or the like. It is also conceivable that a hand-held power tool or another device that is used in connection with the anchor fastening, for example an anchor fastening aid, is designed as a computer device. The computer device comprises in particular a storage unit for storing data and a processing unit for processing data. The data can be transmitted directly to the computing device. Alternatively, it is also conceivable for the data to be transmitted to the computer device indirectly, for example via a further computer device. The data can be collected by the computing device itself or transmitted via a cable or wirelessly, for example via Bluetooth, WLAN or 5G.

The borehole position parameter is in particular designed in such a way that the position of the borehole within a room and/or within a building can be determined by the computer device via the borehole position parameter. Alternatively or additionally, it is also conceivable that the relative distance and/or the relative position of at least two boreholes to one another can be determined via the borehole position parameter. For example, the borehole location parameter may be embodied as a single distance between a marker or a wall. The distance can be adjusted using an anchor fastening aid be detectable, for example, via a transit time measurement of light, radio, sound or ultrasound. For this purpose, the anchor fastening aid can have, for example, an optical sensor or a sound or ultrasonic sensor. Relative positioning of a borehole position to another borehole position along a distance axis can also be detected with the aid of several measurements relating to the same marker or wall. A relative position within a reference space can also be recorded by taking several distance measurements in different directions. Such borehole position parameters can be detected, for example, using millimeter waves, radar, ultrawideband, WLAN or Bluetooth transmitters, some of which span a reference space as reference transmitters and can locate other transmitters in the reference space. A positioning accuracy in the range of 30 cm to 50 cm can be advantageously achieved as a result. In addition, it is also conceivable for the borehole position parameter to be recorded using a camera, with the camera being designed, for example, to recognize markers and to triangulate the position using the markers. It is also conceivable for the borehole position parameter to be detected using dead reckoning using inertial sensors, for example acceleration sensors, gyro sensors or yaw rate sensors, or using geomagnetic field sensors. Furthermore, it is conceivable that the borehole position parameter takes place via an absolute positioning system, such as GNSS. The absolute positioning system can be designed, for example, to determine one's own position, the position of the reference marker and/or the reference space. Precise detection of the borehole parameter requires knowledge of the exact positioning and orientation of the respective sensors. The borehole parameter is preferably detected by means of a plurality of sensors, one of the sensors preferably being in the form of an inertial sensor or a magnetic field sensor.

The anchor setting variable is designed in particular in such a way that the setting parameters relevant to the anchor device can be determined based on the anchor setting variable. The setting parameters can be, for example, a required borehole depth, borehole diameter, prescribed cleaning steps, tightening torques, types of holding base (concrete, natural stone, wood, etc.), holding loads or the like. The setting parameters that can be determined using the anchor setting device are therefore both when drilling the borehole and when actual setting of the anchor device relevant. An optical sensor, for example a camera, can be provided to detect the anchor setting size, via which the length, the diameter, the manufacturer, the type of anchor device, etc. can be detected. Based on the size of the anchor setting, the computer device is set up to determine the length, the diameter, the manufacturer and/or the type of the anchor device, preferably using an image recognition algorithm. Alternatively, it would also be conceivable for the computer device to carry out the determination using lookup tables. It is also conceivable that the anchor-setting size is recorded using suitable coding on the anchor-setting device, for example a QR code, a UUID, an auto-ID, an RFID code, a mechanical coding or the like.

The borehole parameter is designed in particular in such a way that a borehole depth and/or a borehole angle can be determined by the computer device based on the borehole parameter. It is conceivable, for example, that the drill hole parameter can be detected capacitively or inductively via an application tool of the hand power tool. The application tool of the hand-held power tool can be designed as a drill, for example. It is also conceivable that, in particular during the drilling process, a distance from the wall is recorded using the anchor fastening aid or the hand-held power tool. For example, the anchor fastening aid or the hand-held power tool can have metal elements, in particular metal rods, for capacitive or inductive detection. It is also conceivable that the application tool, preferably the drill, has markings that can be detected optically. The acquisition of the borehole parameter can be started manually or automatically. A further sensor is preferably provided for the automatic start, which, for example, detects the start of the drilling process and the end of the drilling process by recording noises, vibrations, switching operations, etc. The measurement of the borehole depth or the detection of the borehole parameter can take place between these two points and can therefore also be ended automatically. It is also conceivable that the borehole parameter is recorded using a camera with triangulation, which can be designed, for example, to record a shape, length and/or width of the anchor device. As an alternative or in addition, it is conceivable that, after an initial distance has been recorded, the depth of the borehole takes place via sufficiently robust dead reckoning using an inertial sensor system. In other words, a sensor can be provided to start and / or To capture the end point of the drilling process and thus the borehole depth measurement.

Another sensor is provided to determine the distance between these two points. Further sensors can preferably also be used, for example to monitor the drilling process, for example via a sound and/or vibration profile. Advantageously, in addition to the depth of the borehole, the quality of the drilling process or borehole can also be determined, for example by the course of the drilling process over time. The sensors for distance detection can preferably be in the form of optical sensors or wireless sensors in the high GHz range or ultrasonic sensors in the range of over 50 kHz, preferably over 200 kHz. The sensors are preferably designed in such a way that the borehole parameter that can be detected by the sensors to determine the distance from the borehole to supporting structures can be distinguished from side walls, reinforcements or lamination of the actual supporting structures. The borehole parameter can preferably be recorded by means of an array measurement, with a line of the wall or a plane of the wall being recorded by different targeted points on the wall. This can be done, for example, with the help of sensors that take into account the gravitational acceleration as an orientation aid. In this way, a borehole angle can advantageously be determined by the computer device based on the borehole parameter. Alternatively, it is also conceivable for the angle to be determined during drilling using suitable force transducers which, for example, record the tilting of the application tool or the hand-held power tool.

The anchor fastening parameter is designed in such a way that the setting process can be monitored and/or the quality of the setting process can be checked via the anchor fastening parameter. The anchor fastening size can be detected, for example, immediately before the setting process, for example by measuring the borehole. For example, a sensor in the form of a camera can be used to detect shell eruptions or dust residue around the mouth of the borehole or to detect distances from boreholes or anchor devices that have already been set. It is also conceivable that the anchor fastening parameter is recorded partially or completely during the setting process. For example, using a sensor in the form of a torque sensor or based on strain gauges, which measure the deformation of an accessory when it is set, or in the form of magnetic sensors, which changes measured in a suitable magnetized layer, the torque detected and provided to the computing device as an anchor attachment parameter. It is also conceivable that the armature fastening characteristic is partially or completely detected by the handheld power tool that is used for the setting process, for example by measuring the torque using a current sensor. In addition, it is conceivable that a rotation angle can be determined via the anchor fastening parameter. For this purpose, the running time and possibly the running performance of a motor unit and/or a gear unit of the hand-held power tool can be recorded, for example by recording the sound profile and/or the vibration profile using suitable sensors. A rotation of the drill can optionally also be detected via a camera and, for example, the optical flow, or other suitable sensors such as an incremental encoder or magnetic sensors. It is also conceivable that environmental parameters during the setting process can also be recorded via the anchor fastening parameter. It is conceivable, for example, for a temperature to be recorded using a temperature sensor, a humidity using a humidity sensor, a pressure using a pressure sensor, the presence of gases using a gas sensor, etc. to be recorded and made available to the computer device as an anchor fastening parameter. It is also conceivable that an alignment of the tool and vibration profiles of the setting process could also be recorded via the anchor fastening parameter. Sensors in the form of microphones or structure-borne noise sensors are preferably used for this purpose.

Anchor state information is to be understood as information about which the anchor state can be evaluated and/or displayed. The anchor status information can be determined specifically for a single anchor device or for multiple anchor devices. In order to determine an anchor status information for a single anchor device, all recorded parameters of this anchor device are bsp. linked together using an ID or a digital twin. The anchor status information can be used, for example, to determine whether the anchor device has already been installed, whether it has been properly installed, when and where the anchor device was installed, etc.

Anchor attachment progress information is to be understood as information by which the progress of the anchor attachment process is tracked can be. The anchor attachment progress information can be determined specifically for a single anchor device or for multiple anchor devices. In order to determine anchor attachment progress information for a single anchor device, all of the recorded parameters of this anchor device are bsp. linked together using an ID or a digital twin. The anchor fastening progress information can be used to determine the progress of the anchor fastening, with the user being able to be provided with information as to whether, for example, a method step that has already been carried out was carried out correctly or what the next method step or steps are. It is also conceivable that, based on the armature attachment progress information, a hand-held power tool or an armature attachment aid is controlled and/or set.

Furthermore, it is proposed that, in an additional method step, a borehole cleaning characteristic is recorded and made available to the computer device. The borehole cleaning parameter is in particular designed in such a way that the borehole cleaning parameter can be used to determine whether a borehole has been cleaned and in particular whether a borehole has been cleaned sufficiently for the provided anchor device. The borehole cleaning parameter can be recorded, for example, using a camera or another optical sensor. The borehole cleaning parameter can also be used to determine the anchor status information and/or the anchor fastening progress information.

In addition, it is proposed that an installation plan is provided by the computer device in a preferably first method step. The computing device that provides the installation plan and the computing device that obtains the anchor state information and/or the anchor attachment progress information may be the same or different computing devices. The installation plan can inform the user, for example, about the hand tool, the anchor fastening aid, a smartphone, etc. Alternatively, the installation plan may include information regarding the required anchor devices, components and accessories and the quantities of each. In addition, the installation plan can include information about the trade, for example whether and/or where there is reinforcement, what type of reinforcement is installed, with what wear and tear of application tools such as drills is to be expected. The installation plan can also include information about the room in which and/or the position and sequence in which anchor fastenings are to be installed. In addition, the installation plan can also include a parts list or a work plan. Alternatively or additionally, it is also conceivable that the installation plan or several different installation plans are stored on the hand-held power tool, the anchor fastening aid, the smartphone or the like and can be selected. The selection can be made by the computer device or by the user. The installation plan is specifically intended to guide or assist the user through the installation process. The installation plan can, for example, include a daily program intended for at least one user or building. The computer device is preferably part of a BIM (construction data modulation), with information such as the installation plan being able to be provided by means of the BIM and the computer device also being able to deliver information such as the anchor status information and/or the anchor fastening progress information to the BMI. The installation plan can also include information about the energy requirement, for example, which can also be compared with the state of charge of the battery packs provided. Advantageously, the user can be informed as to whether the battery packs need to be charged or how many battery packs are required. Alternatively or additionally, the installation plan can include a material comparison, which can be used to check at the beginning of the work whether sufficient material such as anchor devices and the right hand power tools, application tools, etc. are available.

It is also proposed that the borehole position parameter, the borehole parameter, the anchor setting parameter, the borehole cleaning parameter and/or the anchor fastening parameter should preferably be recorded using a single device, preferably using a single anchor fastening aid. In this way, a secure and precise acquisition of the data can advantageously be realized. Alternatively, it is also conceivable for the detection to take place via a number of devices. At least one of the parameters is preferably recorded by a hand-held power tool. The anchor fastening aid can be designed as an accessory for the handheld power tool, with the accessory being designed to be detachably connectable to the handheld power tool. For example, the anchor fastening aid as an additional handle for connection to a housing Hand tool or as a sensor ring for connection to the Ge housing of the hand tool or for connection to an insert tool. The anchor fastening aid is preferably also designed as a computer device, as a result of which the data can be evaluated partially or completely by means of the anchor fastening aid.

In addition, it is proposed that the computer device generates a digital twin for each anchor device, via which the state of the anchor device and/or the progress of the anchor fastening device is monitored. A digital twin is to be understood as a digital, virtual model that is assigned to the anchor device and at least includes the parameters provided to the computer device. In particular, in addition to the pure data of the attachment property(s), the digital twin also includes models, assumptions and/or simulations relating to the represented anchor device. In the digital twin, an identifier serves as an identifier for that data set that is uniquely assigned to the anchor device that carries the identifier. The identifier can be generated manually by the user, for example at the beginning of the fastening process, or automatically, for example by scanning the anchor device or a packaging of the anchor device. In this way, the identifier and attachment property of an anchor device (including the attachment environment) are linked in the digital twin. The computer device is preferably set up to create and update the digital twin belonging to an anchor device, i.e. to keep and maintain it.

The anchor device can be monitored by evaluating the digital twin using the computer device. "Monitoring" means in particular that the anchor status information and/or the anchor attachment progress information relating to the anchor device (including the attachment environment) is determined, with the anchor status information allowing a statement to be made on the status, for example wear, maintenance requirements, replacement requirements, force distribution or the like can. It should be noted that the anchor status information is not necessarily static information, but can also relate to a time-dependent profile, for example a trend, a development, a forecast or the like. The determination of the anchor status information by evaluation allows, in the context of Monitoring of the fastening device(s) to increase machine, process and/or operator efficiency during the installation and/or maintenance of the fastening device(s), for example through an early indication of problems, errors, necessary activities (such as maintenance) and an associated ability to plan activities in connection with the installation and/or maintenance of the anchor device(s) in a targeted manner. In one embodiment of the method, the anchor status information derived from the evaluation is defined or selected in such a way that it relates to at least one of the following aspects: a status, in particular an operating or usage status, of the fastening device, for example a load distribution on the anchor device, a degree of wear or wear, a condition of the anchoring device, for example humidity or the temperature of the fastening environment

Anomalies that indicate installation and/or maintenance errors, for example excessive tensioning of the anchor device in the masonry

Abnormalities which indicate a defect in the anchor device and/or the fastening area, for example material fractures or cracks in the masonry or combinations thereof.

Furthermore, it is proposed that a status of the anchoring device and/or a warning regarding the state of the anchoring device be provided to the user. The status or the warning can be provided via a hand-held power tool that is used during the fastening process or via an accessory, for example via an anchor fastening aid. Alternatively, it is also conceivable that the provision is made via another electronic device, such as a smartphone or a smartwatch. Furthermore, it is proposed that the user be provided with instructions for further or optimized anchor fastening based on the anchor fastening progress information. The instructions can be provided using a hand-held power tool that is used during the fastening process or using an accessory, for example an anchor fastening aid. Alternatively, it is also conceivable that the provision is made via another electronic device, such as a smartphone or a smartwatch or VR glasses. For this purpose, the anchor fastening device preferably has a display. The display can be embodied as a screen, for example. The screen is preferably designed in such a way that text, numbers and/or graphics can be displayed. In particular, the screen is associated with an HMI (Human Machine Interface).

In addition, it is proposed that a handheld power tool is controlled and/or set based on the anchor attachment progress information. It is conceivable, for example, that a power output and/or a torque of the hand-held power tool is set. It is also conceivable that dust extraction for the borehole is adjusted and/or controlled by the computer device.

Furthermore, it is proposed that a handheld power tool and/or an anchor fastening aid be blocked based on the anchor fastening progress information. In this context, blocking is to be understood in particular as meaning that a function or the entire operation of the hand-held power tool and/or the anchor fastening aid is deactivated. For example, it is conceivable that the handheld power tool is blocked in such a way that the handheld power tool, in particular the drive of the handheld power tool, cannot be switched on

It is also proposed that a manual input from the user is required to release the lock. A change in the setting of the hand-held power tool is preferably linked to the manual input by the user.

In addition, the invention relates in particular to an anchor fastening aid for supporting and/or monitoring an anchor fastening process, with a Housing in which electronics are arranged, the electronics having a sensor unit and a communication interface for the transmission of information. It is proposed that the anchor fastening aid has a connection unit which is designed to connect the anchor fastening aid to a hand-held power tool or an application tool.

The anchor attachment aid is preferably designed as an accessory. However, it is also conceivable that the anchor fastening device is integrated into the hand-held power tool. The hand-held power tool can be formed out as a mains hand-held power tool, in which the hand-held power tool is supplied with power via a mains cable, and/or as a cordless hand-held power tool. The anchor fastening aid is primarily intended to support the anchor installation process. Due to the large number of functions, however, it is also suitable for supporting simpler processes, such as drilling a hole or setting a screwdriver.

The hand-held power tool is in particular designed to be portable and guidable by the user. The hand-held power tool is preferably designed as a hand-held power tool that is used for fastening the anchor, for example a drill, a hammer drill, a screwdriver, an impact wrench, etc. The hand-held power tool preferably has a tool holder via which the hand-held power tool can be equipped with a set tool, for example a Drill, in particular a rock drill, or a bit can be connected.

The electronics are designed to control and/or regulate the anchor fastening aid. The electronics include at least one electronic component. In particular, the electronics include at least one printed circuit board on which at least one electronic component is arranged. In particular, the electronics include at least one computing unit and one memory unit. Advantageously, the anchor fastening aid is also designed as a computer device by the electronics, which can be used to process information and data.

The sensor unit preferably comprises at least one sensor element for detecting a borehole position parameter, borehole parameter, anchor setting parameter, anchor fastening parameter and/or borehole cleaning parameter is trained. The sensor element can be designed, for example, as a movement sensor and/or as an inertial sensor, which is designed to detect a movement or a movement parameter. The movement sensor can be designed, for example, as an acceleration sensor, in particular a 3-axis acceleration sensor, or as a gyro sensor or as a yaw rate sensor. In particular, the movement sensor is designed as a movement sensor for high vibration frequencies and/or for particularly high accelerations and/or yaw rates, which are provided in particular for hammer drills or hammer drills. The sensor element can also be embodied as a distance sensor, which is embodied to detect a distance or a distance parameter. The distance sensor can be designed, for example, as an optical sensor, in particular as a lidar (light detection and ranging) or as a ToF lidar. Alternatively, it is also conceivable for the distance sensor to be in the form of an ultrasonic sensor or a radar sensor. The sensor element can also be designed as a camera, which is designed to capture a distance and/or an image. The sensor element can also be embodied as a microphone, with the microphone being embodied for detecting distances and/or noises and/or speech. Furthermore, the sensor element can be embodied as an environmental sensor element which is embodied to detect an air humidity (characteristic), a temperature (characteristic), an air pressure (characteristic) and/or a gas concentration (characteristic). The sensor element can also be designed as a magnetic sensor element. Furthermore, the sensor element can be designed as a torque sensor element.

The communication interface is designed in particular to exchange information and/or data between the anchor fastening aid and another device, such as a hand-held power tool and/or a computer device. The communication interface is preferably designed for the wireless exchange of data, for example via WLAN, Bluetooth, RFID, mobile radio, or the like. Alternatively or additionally, it is also conceivable for the communication interface to be designed for wired exchange of data, for example via a USB connection. The connection unit is preferably designed for the tool-free, detachable connection of the anchor fastening aid to the hand-held power tool and/or the set tool. The connection unit can have force and/or form-locking elements that correspond to corresponding force and/or form-locking elements of the handheld power tool and/or the insert tool. The force and/or form-fitting elements can also be designed in such a way that they correspond to the housing of the hand-held power tool or the shape of the application tool in such a way that a connection is possible.

Furthermore, it is proposed that the anchor fastening aid has an HMI (Human Machine Interface), the HMI comprising a screen unit and an input unit. Advantageously, this can improve the handling of the anchor fastening aid. The screen unit can in particular have an LCD or an OLED screen. The screen unit is designed in particular to display information based on the anchor status information and/or on the anchor attachment progress information. For example, it is conceivable that, based on the anchor fastening progress information, it can be displayed which step of the installation the user is at and which step is to be carried out next. The input unit can include one or more operating elements, by means of which the fastening aid can be controlled and/or adjusted. The operating elements can, for example, be in the form of buttons which are advantageously designed in such a way that they give the user feedback, in particular acoustic and/or haptic and/or visual feedback, when they are used.

Furthermore, it is proposed that the electronics include at least two printed circuit boards, which are arranged parallel to one another. A laterally compact design is advantageously possible as a result.

In addition, it is proposed that at least one of the printed circuit boards has a recess in which the hand-held power tool or the insert tool is arranged in the connected state. Advantageously, a compact design of the overall system consisting of anchor fastening aid and hand tool machine can thereby be realized. Furthermore, it is proposed that the sensor unit has at least two sensor elements, which are arranged on different printed circuit boards. Advantageously, the existing space, the positioning of the sensor elements and the connection of the sensor elements to the housing can be optimized as a result.

Furthermore, it is proposed that the anchor fastening aid has at least two, preferably at least three, different sensor elements, each of which is designed to record the same information. As a result, the sensor elements can advantageously be used in different environmental conditions or for determining the plausibility. In this context, determination of the same information is to be understood in particular as the borehole position parameter, the borehole parameter, the anchor setting parameter and/or the anchor fastening parameter.

In addition, it is proposed that the anchor fastening aid has a projection unit. The projection unit is intended in particular to provide the user with information on the workpiece, for example a current penetration depth or borehole depth, a time or working point at which the borehole is to be drilled. The projection unit is preferably arranged on a side that is adjacent to or opposite to the side on which the screen unit of the HMI is located. In particular, anchor status information and/or anchor attachment progress information can be displayed via the HMI and/or the projection unit. Alternatively or additionally, the projection unit can also be designed to display a laser line, a laser cross and/or a laser point.

Furthermore, it is proposed that the anchor fastening aid be designed so that it can be connected to an additional handle or the anchor fastening aid be designed as an additional handle. Advantageously, the anchor attachment can be connected to help with several hand tools, such as a rotary impact wrench and a hammer drill. The additional handle is provided as an additional handle for the handheld power tool, the handheld power tool thus preferably has a main handle which is preferably integral or integral with the handheld power tool body. house is trained. The auxiliary handle is designed to be detachable with the hand tool machine. The connection unit of the anchor fastening aid or the additional handle is preferably designed in such a way that it can be adapted to different handheld power tools. The auxiliary handle can have lighting to illuminate the work surface. Furthermore, the additional handle can have a damping mechanism that reduces vibrations in the handle area and/or reduces vibrations that affect the electronics of the anchor fastening aid. The damping mechanism can be provided for active or passive vibration decoupling. Passive vibration decoupling can be achieved, for example, by choosing suitable damping materials. Active vibration decoupling can be done, for example, by using suitable vibrators that counteract vibration. In addition, the additional handle can have protective elements that are designed to protect sensors of the anchor fastening aid. For example, it is conceivable that the additional handle has a shutter that can be opened quickly during use, automatically or manually.

Furthermore, it is proposed that the anchor fastening aid is designed in at least two parts, which are preferably connected to one another in a detachable manner without tools, the first part comprising the connection unit and the electronics and the second part comprising the power supply. As a result, the electronics are advantageously not energized in the unconnected state.

In addition, it is proposed that the anchor fastening aid has an energy supply, which is preferably arranged in the housing of the anchor fastening aid. In this way, the electronics of the anchor fastening aid can advantageously be supplied with energy. The energy supply is preferably designed to be rechargeable. The energy supply can be designed as a lithium-ion battery, for example. The energy supply can be designed as a particularly zy-cylindrical round cell or as a prismatic cell or as a pouch cell. The anchor fastening aid can have a charging interface, for example a USB interface, via which the energy supply is designed to be rechargeable.

Furthermore, it is proposed that the energy supply is arranged in a handle area and preferably electrically via a sliding contact connected to the electronics. In particular, the anchor fastening aid has a further energy supply, which is arranged in the first part. This can advantageously ensure that the electronics are always supplied with energy during operation of the hand tool machine, even with high vibrations.

In addition, it is proposed that the further energy supply is arranged between the printed circuit boards. Advantageously, the required installation space can be optimized in this way.

drawings

Further advantages result from the following description of the drawing. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations. Show it:

Fig. 1 is a perspective view of a hand tool with egg ner anchor fastening aid according to the invention;

FIG. 2a shows an outside of a first printed circuit board of the anchor fastening aid according to FIG. 1;

FIG. 2b shows an inside of a first printed circuit board of the anchor fastening aid according to FIG. 1;

2c is a perspective front view of the anchor attachment aid;

Fig. 3a is an interior view of a second circuit board of the armature mounting aid of FIG. 1;

3b shows an external view of a second printed circuit board of the anchor fastening aid according to FIG. 1;

3c shows a perspective rear view of the anchor fastening aid;

4 shows a longitudinal section of the anchor fastening aid;

5a shows a first electrical contact element of the anchor fastening aid;

5b shows a second electrical contact element of the anchor fastening aid;

6 shows a flow chart of a method according to the invention for providing information about an anchor attachment.

Description of the exemplary embodiments

A handheld power tool 10 with an anchor fastening aid 100 is shown in FIG. 1 . The hand tool 10 is releasably connected to the anchor fastening aid 100, the anchor fastening aid 100 being designed as an additional handle 102. The hand-held power tool 10 is arranged in a room on the walls of which several working points 12 are exemplified, on which the set zen of anchor devices (not shown) is provided for the attachment of plates (not shown).

The hand-held power tool 10 is embodied as a rotary impact wrench 14 , for example. However, the anchor fastening aid 100 can also be connected to a hammer drill (not shown), which is provided for creating boreholes in masonry. The rotary impact wrench 14 can then be used in connection to set the anchor device and thus attach the panels to the wall.

The hand-held power tool 10 has a hand-held power tool housing 16 in which an electric motor (not shown) having a drive unit 18 and a gear 20 are arranged. A drive movement of the drive unit 18 can be transmitted to a tool holder 22 of the hand-held power tool 10 via the transmission 20 . The tool holder 22 is designed to hold insertion tools 23, for example bits, or also to bind with anchor devices.

The hand-held power tool 10 has a main handle 24 on which an operating switch 26 for switching the hand-held power tool 10 on and off is arranged. The main handle 24 is integrally formed with the hand tool machine housing 16 and extends, for example, substantially perpendicular to a working axis 28 of the hand tool machine 10, about which the tool holder 22 is rotatable. The hand-held power tool 10 has a communication interface 30, by means of which the hand-held power tool 10 can exchange information and data with the anchor fastening aid 100 or an external computer device (not shown). The hand tool machine 10 has a battery interface 32 via which the hand tool machine 10 can be connected to a battery pack 34 . The battery pack 34 is detachable with connected to the hand-held power tool 10 and has a battery pack housing 36 in which, for example, ten battery cells (not shown) are arranged.

The battery pack is also designed in such a way that it can also be connected to another hand-held power tool, such as a hammer drill.

A large torque is applied via the rotary impact wrench 14 when setting the anchor device. This may require two-handed operation.

The anchor fastening aid 100 designed as an additional handle 102 provides such a two-handed operation.

The auxiliary handle 102 has a housing 103 which is formed, for example, from a first part 104 and a second part 106, the first part 104 and the second part 106 being detachably connected to one another without tools.

The connection of the first part 104 to the second part 106 takes place, for example, via a screw 105 which is movably mounted in the first part 104 and is connected to a thread 107 in the second part 106 (see FIG. 4). Alternatively, a one-piece design of the auxiliary handle 102 would also be conceivable.

The first part 104 of the auxiliary handle 102 or the anchor fastening aid 100 comprises a connection unit 108 for connecting the auxiliary handle 102 or the anchor fastening aid 100 to the impact wrench 14. The connection unit 108 comprises a clamping strap 110 that the hand tool machine 10 in the area of the tool holder 22 encloses and the anchor fastening aid 100 with a force and form fit on the handheld power tool 10 fi xed. The clamping strap 110 is connected to the screw 105 for connecting the additional handle 102 and can be partially released or loosened by this, whereby only the frictional connection can be released and thus the anchor fastening aid 100 can be repositioned relative to the handheld power tool 10 in the connected state.

Furthermore, the first part 104 includes electronics 112 which are provided for controlling, regulating and/or adjusting the anchor fastening aid 100 .

The second part 106 includes a handle 114 which extends substantially perpendicularly to the working axis of the hand-held power tool 10 . The handle 114 includes a handle portion 116 operable by the user is surrounded or gripped by the hand. Within the handle 114, in particular within the handle portion 116, a power supply 120 is arranged, which is ausgebil det to power the anchor attachment aid 100. The energy supply is embodied as a battery cell 122, for example. The battery cell 122 is designed to be rechargeable, for example. The battery cell 122 is embodied as a cylindrical lithium-ion battery cell, for example.

In addition, it is conceivable that the handle 114 also includes at least one switch, a charging socket, charging electronics or other functions.

The electronics 112 includes a first printed circuit board 124 and a second printed circuit board 126 shown in FIGS. The circuit boards 124, 126 have a recess 125, in which the hand power tool 10 is arranged in the connected state. This allows a compact design of the system.

The first printed circuit board 124 has an outer side 128 (see FIG. 2a), which is arranged adjacent to the housing 103 of the anchor fastening aid 100.

The electronic components described below are arranged on the outside 128 .

The first circuit board 124 has an optical sensor element 130 in the form of a camera 132 . Adjacent to the camera 132 is a flash LED 134 arranged for illumination. The flash LED 134 can be configured to be activated automatically, for example when an image is captured, and/or activated manually, for example to illuminate a workpiece or a borehole.

Furthermore, the first printed circuit board 124 includes two further optical sensor elements 131, which form a TOF laser sensor 136 for detecting a distance. The two further optical sensor elements 131 are arranged on the first printed circuit board 124 essentially at a maximum distance from one another.

In addition, the first printed circuit board 124 has two ultrasonic sensors 138 for detecting a distance. The two ultrasonic sensors 138 are preferred arranged substantially at a maximum distance from each other on the same printed circuit board.

In addition, the first printed circuit board 124 has a connection socket 140 which is provided for connection to a radar sensor (not shown). As a result, the radar sensor can advantageously be installed or not depending on the intended use of the anchor fastening aid 100 . The radar sensor is designed to detect a distance and/or to detect material parameters of the anchor device and/or the workpiece or the wall.

In addition, the first printed circuit board 124 has a projection unit 142 which is designed to project information onto the workpiece or the wall.

In addition, the first printed circuit board 124 has an inner side 144 which is arranged adjacent to the second printed circuit board 126 . The electronic components described below are arranged on the inside 144 of the first circuit board 124 .

An acoustic sensor 146 in the form of a microphone 148 is arranged on the inside 144 of the first circuit board 124 . The microphone 148 is provided for capturing noise and/or speech.

In addition, a computing unit 150 in the form of a dual-core processor for processing data and a memory unit for storing data is arranged on the inside 144 . The arithmetic unit 150 also includes a communication interface 152, which is provided for exchanging data with another device, such as the hand-held power tool 10, for example.

The communication interface 152 includes, for example, a WLAN module and a BLE (Bluetooth Low Energy) module.

2c shows a perspective view of the anchor fastening aid 100, with the housing 103 of the anchor fastening aid 100 being shown adjacent to the first circuit board 124. In FIG.

The housing 103 has a first window 154, for example the camera 132, one of the ToF laser sensors 136 and the flash LED 134 is covered and thus protected. Immediately below the window 154, the housing 103 has a recess 156 which is adjacent to one of the ultrasonic sensors 138 is arranged.

The housing 103 also has a second window 155 for the second ToF laser sensor 136 and a second recess 157 for the second ultrasonic sensor 138 .

In Fig. 3a an inner side 160 of the second printed circuit board 126 is shown, which is arranged adjacent to the first printed circuit board 124 be.

On the inside 160 of the second circuit board 126, an inertial sensor 162 is arranged, which is provided for detecting movements. The inertial sensor 162 includes, for example, a 3-axis motion sensor and a yaw rate sensor.

Furthermore, the inside 160 of the second printed circuit board 126 includes an environmental sensor 164 which is designed to detect humidity (parameter), temperature (parameter), air pressure (parameter) and/or gas concentration (parameter). The gas concentrations to be detected are, in particular, gases that could be harmful to the health of the user above a certain concentration, such as CO and CH4.

Furthermore, the inside 160 of the second printed circuit board 126 includes a buzzer 165 which is designed to generate an acoustic signal.

In addition, the inside 160 of the second printed circuit board 126 includes a torque sensor 166, which is designed, for example, as a high-resolution analog/digital converter 168, which is connected to a strain gauge.

The outer side 170 of the second printed circuit board 126 (see FIG. 3 b ) is arranged adjacent to the housing 103 of the anchor fastening aid 100 .

An HMI 172 is arranged on the outside 170 of the second circuit board 126, which comprises a display unit 174 and an input unit 176 . The screen unit 174 is designed, for example, as an OLED screen 175, which is provided for displaying text and numbers. The input unit 176 includes four input elements 178, which are designed as pushbuttons 180, for example. In addition, the input unit 176 includes a lighting unit 182 in the form of an RGB LED 184. The lighting unit 182 can be used to give the user visual feedback on the actuation of the HMI 172, in particular the pushbuttons 180. Alternatively or additionally, the light unit 182 can be used to indicate which pushbuttons 180 are switched to be active and can therefore be used to control or set them.

In addition, the outside 170 of the second printed circuit board 126 includes an external I2C interface 186, via which the second printed circuit board 126 can be connected to a magnetic sensor. The magnetic sensor is intended in particular for detecting a torque.

In FIG. 3c , the housing 103 of the anchor mount is positioned adjacent to the second circuit board 126 . The housing 103 has Aussparun gene for the HMI 172, in particular the screen unit 174 and the input unit 176 on this page.

In addition, the anchor attachment aid 100 has a USB port (not shown), which is arranged on the side of the housing 103 . The USB port is covered by a sealing element 190 consisting of a protective rubber lip. Data can be exchanged and the power supply charged via the USB port.

A further power supply, not shown, is arranged between the first printed circuit board 124 and the second printed circuit board 126 .

In Fig. 4 is a longitudinal section through the designed as an auxiliary handle 102 to ker Befestigungshilfe 100 is shown.

The connection of the power supply 120 in the second part 106 of the anchor fastening aid 100 to the electronics 112 in the first part 104 of the anchor fastening aid 100 is effected via two electrical contact elements 192, 194. The first electrical contact element 192 is shown in FIG. 5a in a plan view.

The first electrical contact element 192 is designed as a spring contact 196 det. The spring contact 196 comprises, for example, a ring-shaped printed circuit board 198 on which resilient contacts 200 are arranged on an inner track and on an outer track. For each track, the first electrical contact element 192 preferably comprises a plurality of resilient contacts 200, which are preferably arranged equidistantly within a track. Between the tracks, the contacts are preferably offset from one another.

The first electrical contact element 192 is net angeord at the interface of the first part 104 of the armature attachment aid 100 to the second part 106 that the contacts 200 face the second part 106 and in particular are exposed. The first electrical contact element 192 is connected to the electronics 112 via a wire connection, for example.

The second electrical contact element 194 is designed as a slip ring 202 det. The slip ring 202 includes an annular printed circuit board 204 on which an outer conductor track 206, for example made of copper, and an inner conductor track 208, for example made of copper, is arranged.

The second electrical contact element 194 is arranged at the boundary surface of the second part 106 of the anchor fastening aid 100 to the first part 104 that the conductor tracks 206, 208 face the first part 104 and are preferably exposed. The second electrical contact element 194 is connected to the battery cell 122 via a wire connection, for example.

When connected, the resilient contacts 200 on the inner track of the spring contact 196 apply a force to the inner track 208 of the slip ring 202 and the resilient contacts 200 on the outer track of the spring contact 196 apply the outer track 206 of the slip ring 202 to transfer energy. The force is applied by screwing the second part 106 to the first part 104 . The first and/or the second electrical contact element 192, 194 are, for example, countersunk to prevent accidental short circuits on conductive surfaces.

Alternatively, it would also be conceivable for the first electrical contact element 192 to be in the form of a slip ring and the second electrical contact element 194 to be in the form of a spring contact.

FIG. 6 describes a flow chart with an exemplary method in which an anchor device is set supported by the anchor fastening aid 100 .

In a first step 300 the anchor device or the packaging of the anchor device is scanned by the camera 132 . As a result of this measure, the camera 132 as an optical sensor 130 detects a borehole parameter and an anchor setting variable. The wellbore metric and the bolt setting metric are provided to a computing device. The borehole parameter includes in particular information regarding a borehole size. The anchor setting size includes in particular information regarding anchor setting parameters, such as a required torque. The computer device is embodied, for example, as the electronics 112 of the anchor fastening aid 100, which determines anchor status information and anchor fastening progress information based on the detected parameters. However, this requires powerful electronics. Alternatively, it would also be conceivable for individual or all parameters to be made available to an external computer device, for example in the form of a cloud, and evaluated there.

It would also be conceivable for the external computer device to provide the anchor fastening aid with a daily program with a material comparison using BIM via the communication interface 152 before the start of work. In this case, it is possible, for example, to use the determined anchor fastening progress information to compare whether the correct anchor devices are available in sufficient numbers.

In a second step 302, based on the anchor attachment progress sinformation on the HMI 172, in particular the screen unit 174 of the HMI 172, a borehole depth to be drilled is indicated. The input unit 176 is preferably designed in such a way that the borehole depth can be confirmed or changed by actuation. For example, it is conceivable that a borehole depth of 10 cm is displayed and this can be increased or decreased in discrete steps via the HMI, for example by 5% or by 1 cm.

In a third step 304 a borehole is produced in the wall at one of the working points 12 . For this purpose, the anchor fastening aid 100 is connected to a handheld power tool 10 designed as a hammer drill (not shown). During the borehole process, the electronics 112 of the anchor fastening aid 100 detect a borehole parameter and determine the borehole depth. The drill hole depth can be displayed via the HMI 172 of the anchor fastening aid 100.

The borehole depth is detected via the sensor unit of the electronics 112. The start and end of the drilling process is recorded via the inertial sensor 162, in particular the acceleration sensor, and/or via the microphone 148. When the workpiece is removed during the drilling process, increased vibrations and noise are generated, which are recorded by the sensors and used to determine the start and end of the drilling process. Between the start and the end of the drilling process, the distance between the anchor fastening device and the wall or the workpiece is also recorded. This takes place, for example, exclusively via the ToF laser sensors 136. Alternatively, it would also be conceivable to use the ultrasonic sensors 138 or the radar sensor for this purpose. In addition, it is also conceivable to use two or all sensors to measure the distance for plausibility checks. If the detected distance corresponds to the set distance, the buzzer 165 gives the user an indication that the required borehole depth has been reached. Alternatively, it is also conceivable for a control signal to be sent via electronics 112 to hand-held power tool 10 in order to switch off the drive.

The electronics 112 are provided with both the start and end points as well as the detected distance and the duration of the drilling process as borehole parameters. In addition, an identifier is generated for each drilling operation, which the electronics 112 can use to assign the respective parameters to this borehole. Also become the electronics 112 provided data from the inertial sensor 162 as a borehole position characteristic. The inertial sensor 162 is also used to record further information such as the drilling angle and the course of the vibrations as a borehole parameter. Furthermore, it is conceivable that settings of the hand tool machine 10, such as clockwise or counterclockwise rotation, rotational speed, torque (curve), etc., are provided via the communication interface 152 as a borehole parameter.

In a fourth step 305, an image of the borehole is generated by the camera 132 and recorded as a borehole position parameter and made available to the electronics 112. The image can be used both for documentation and to determine the position of the borehole.

Before setting the anchor device, the user can first drill several or all drill holes. Steps 304 and 305 are repeated, with an additional step 306 showing the user through the screen unit 174 of the anchor attachment aid 100 where the previous borehole and/or the borehole to be drilled is located. This is done, for example, via the borehole position parameters detected by the inertial sensor 162, which make it possible to display both a relative orientation and a distance. Alternatively or additionally, it would also be conceivable for a 2D/3D pattern recognition to take place, for example via the borehole position parameters recorded by the camera 132 with corresponding feedback via the HMI 172 to the user.

In order to set the anchor devices, the anchor fastening aid 100 can be switched from a downhole mode to an anchor setting mode in a step 308 . This can be done via an external computing device and the communications interface 152 or via manual input to the anchor mounting aid 100 HMI 172 . Alternatively, it would also be conceivable for an external computer device or the electronics 112 of the anchor fastening aid 100 to be able to determine the type of hand-held power tool 10 to which the anchor fastening aid 100 is connected. If the anchor fastening aid 100 is connected to a hammer drill, it is automatically switched to a drill hole mode. Is the anchor fastening aid with a rotary impact wrench connected, the anchor fastening aid 100 is set ver in the anchor setting mode.

It is optionally conceivable to clean the borehole in a step 310 . The cleaning can be carried out using a hand-held power tool 10, a vacuum cleaner, etc. After the cleaning, the anchor fastening aid 100, in particular the camera 112, can be used to create an image of the cleaned borehole or boreholes, which provides a borehole cleaning parameter is summarized and made available, in particular for logging.

In a step 312, the plate is now connected to the wall via a first anchoring device. On the HMI 172 of the anchor fastening aid 100, the user is provided with information based on the determined anchor fastening progress information, with which the user can, for example, optimally adjust the hand power tool 10 to the anchor device. Alternatively, it would also be conceivable for the handheld power tool 10 to be set automatically by sending a control signal based on the anchor attachment progress information to the handheld power tool 10 via the communication interface 152 . In addition, the user is shown on the HMI 172, for example, what is required for a hand-held power tool, in particular how powerful the hand-held power tool is or whether the hand-held power tool connected to the anchor fastening aid meets the specifications.

In a step 314, a further identifier is generated, which is intended to identify the anchor device to be set. The identifier associated with the wellbore and the identifier associated with the anchor device are preferably coupled to one another by the computing device.

During the tie setting process, in a step 316, the electronics 112 of the tie fastening aid 100 capture tie setting parameters. The anchor setting parameters are, for example, anchor setting parameters by which a torque, an angle of rotation, a setting speed and a setting progression can be determined. The setting speed and the setting course can, for example, by means of a combination of the inertial sensor 162 with a of the distance sensors 136, 138, 140 are detected. A strain gauge, which is connected to the electronics 112 via the high-resolution AD converter, is used to record the torque. The detection of the torque can be carried out or supported alternatively or additionally by means of the inertial sensor 162 . Furthermore, as an alternative or in addition, a magnetic sensor connected via the interface 186 can be used for torque detection. The torque can be detected, for example, via a magnetized shaft, for example a shaft of the hand-held power tool or the application tool, or an attachment.

The data collected in this step is provided to the computing device or electronics 112 as anchor attachment characteristics. Based on this data, the user is informed if the anchor device has been installed correctly or according to the specifications. This can be done, for example, via the HMI 172, in particular the screen unit 174, or via the projection unit 142. It is also conceivable that an error message is displayed via the HMI 172 or the projection unit 142 if the torque applied is too high or too low. Alternatively, a display via the illuminated pushbuttons 180 of the HMI 172 is also conceivable.

In addition, further information is recorded via the environmental sensor 164 as an anchor attachment size and stored for documentation or logging.

Steps 312 through 316 are repeated until the installation is complete.

All recorded data or only the essential data are then transmitted in a step 318 via the communication interface 152 to an external computer device, such as a server back end or a cloud. There, the installation process is evaluated by determining anchor status information and/or anchor fastening progress information. The determination is made, for example, using a weighted evaluation of the recorded and compared parameters, which may provide support using methods of artificial intelligence and/or machine learning. Alternatively, the algorithm for this can also be present locally in the electronics 112 of the anchor fastening aid 100 . Each set anchor device is then captured by means of one or more images by means of the camera 132 and made available to the electronics 112 .

In a step 320, an overview report, which includes an assessment of the installation process, is generated and provided to the user. This can indicate frequent user errors, for example anti-clockwise rotation despite the set drilling behavior or a risk of overload for man or machine, for example after tips break off.

Claims

patent claims

1. A method for providing information about an anchor attachment of an anchor device, comprising the following steps:

- detecting a borehole position parameter;

- providing the borehole position parameter to a computer device;

- detection of a borehole parameter,

- providing the wellbore index to the computing device;

- Detection of an anchor setting size;

- Detection of an anchor fastening parameter;

- providing the anchor setting size and/or the anchor fastening characteristic to the computing device;

- determination of an anchor state information and/or an anchor attachment progress information by the computing device.

2. The method as claimed in claim 1, characterized in that in an additional method step a borehole cleaning parameter is recorded and made available to the computer device.

3. The method according to any one of the preceding claims, characterized in that in a preferably first method step, an installation plan is provided by the computer device.

4. The method according to any one of the preceding claims, characterized in that the detection of the borehole position parameter, the borehole parameter, the anchor setting variable, the borehole cleaning parameter and/or the anchor fastening parameter is preferably carried out using a single device, preferably using a single anchor fastening aid (100).

5. The method according to claim 1, characterized in that the computer device generates a digital twin for each anchor device via which the condition of the anchor device and/or the progress of the anchor attachment device is monitored.

6. The method according to any one of the preceding claims, characterized in that a status of the anchor device and/or a warning regarding the condition of the anchor device is provided to the user.

7. The method according to any one of the preceding claims, characterized in that the user is provided with instructions for further or optimized anchor fastening based on the anchor progress size and/or anchor status information.

8. The method according to any one of the preceding claims, characterized in that a hand-held power tool (10) is controlled and/or set based on the progress size of the armature.

9. The method according to any one of the preceding claims, characterized in that based on the anchor attachment progress information a hand tool (10) and / or an anchor attachment aid (10) is blocked.

10. The method according to claim 9, characterized in that manual input from the user is required to release the blocking.