WO2022233469A1 - Dispositif portatif avec des unités de détection et de commande - Google Patents

Dispositif portatif avec des unités de détection et de commande Download PDF

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Publication number
WO2022233469A1
WO2022233469A1 PCT/EP2022/053276 EP2022053276W WO2022233469A1 WO 2022233469 A1 WO2022233469 A1 WO 2022233469A1 EP 2022053276 W EP2022053276 W EP 2022053276W WO 2022233469 A1 WO2022233469 A1 WO 2022233469A1
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WO
WIPO (PCT)
Prior art keywords
hand
processing
control unit
held device
detection unit
Prior art date
Application number
PCT/EP2022/053276
Other languages
German (de)
English (en)
Inventor
Adrien MARQUETTE
Original Assignee
Adolf Würth GmbH & Co. KG
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 Adolf Würth GmbH & Co. KG filed Critical Adolf Würth GmbH & Co. KG
Publication of WO2022233469A1 publication Critical patent/WO2022233469A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor

Definitions

  • the invention relates to a hand-held device and a method for manual actuation by a user, as well as a retrofit kit and a method for retrofitting a hand-held device.
  • Conventional torque adapters which are placed at the front of torque wrenches as an intermediate adapter or spacer between the torque wrench and a suitable socket, are designed to measure the torque when screwing in a nut. Furthermore, the user can set a maximum torque value so that the adapter emits an audio signal from this value. The appropriate threshold is set using buttons located next to a digital display on the adapter. A documentation of the processes carried out can be evaluated on a computer via a USB cable.
  • wrenches are known in which a digital display is integrated, which shows the torque.
  • the functionality is based on a torque measurement.
  • cordless handheld power tools which include a torque sensor integrated in the machine.
  • the torque is usually determined indirectly using a calculation of the torque based on power consumption, speed and/or number of impacts.
  • an adapter is also known, which is arranged between a cordless hand tool and its battery.
  • Said adapter is a supplement for a cordless hand tool that has an integrated torque determination.
  • data can be read and sent via a cable connection or to a computer or another user device. Similar systems are described in DE 10 2017 222 550 A1, WO 2015/061370 A1 and WO 2020/146696 A1.
  • HILTI SI 6AT A22 which provides an adapter for a cordless impact wrench.
  • the torque can be adjusted here and there is an automatic switch-off based on the speed and energy consumption.
  • a hand-held device for manual operation by a user having a processing device that is designed to process a subsurface, a detection unit for detecting detection data indicative of a force transmission when processing the subsurface using the processing device is formed, and has a control unit which is coupled to the detection unit in a manner capable of communication and which is set up, based on the detection data, for controlling the processing of the subsoil in accordance with a target specification.
  • a retrofit kit for retrofitting a hand-held device which has a processing device for processing a substrate and a has an energy supply device for providing drive energy for driving the processing device
  • the retrofit kit has a detection unit that can be attached to the processing device, which is designed to detect detection data indicative of power transmission when processing the subsoil by means of a processing device, and a control unit that can be attached to the energy supply device, which is communicatively coupled to the detection unit and is set up based on the detection data for controlling the processing of the subsoil according to a target specification.
  • a method for retrofitting a hand-held device which is designed for manual operation by a user and is equipped with a processing device for processing a substrate and with an energy supply device for providing drive energy for driving the processing device, with a retrofit kit with the features described above and/or for forming a hand-held device with the features described above, wherein in the method the detection unit is removably attached to the processing device and the control unit is attached to the energy supply device.
  • a method for controlling a hand-held device designed for manual operation by a user including machining a subsurface by means of a machining device, detecting for a power transmission during Processing the subsurface using the processing device has indicative detection data using a detection unit, and controlling, based on the detection data, the processing of the subsurface according to a target specification using a control unit, which is coupled with the detection unit so that it can communicate.
  • a "handheld device” can be understood in particular as a portable device that can be manually operated and carried by a user and with which processing of a subsurface is made possible.
  • a hole can be drilled in the subsurface and/or a driving force in the form of a longitudinal force and/or a torque can be applied to a fastening element to be set in a subsurface.
  • the driving force can in particular be a turning or rotary driving force , optionally superimposed with a translatory drive force.
  • the hand-held device can be designed to drive a machining device and thus a drill and/or a fastening element in rotation.
  • the drive force can also be a purely translatory drive force.
  • a driving force of a hand-held device can be a pneumatic, a hydraulic or an electric driving force, which is generated for example by a pneumatic device, a hydraulic device or an electric motor, or can be a muscular power of a user.
  • hand tools are a cordless screwdriver, a cordless drill/screwdriver, a screwdriver, an impulse wrench, a ratchet wrench, a drill, an impact wrench (especially a cordless impact wrench), and a hammer drill.
  • Other examples of hand tools include a screwdriver handle, angled handle, ratchet, or torque wrench.
  • processing device can be understood in particular as a mechanism or an assembly that enables processing, in particular processing that sets a fastener or removes material or creates a borehole, of the subsoil.
  • the processing device can be a Chuck housed bit for operating a drive in a fastener head Insertion (with or without pre-drilling) of the fastening element into the substrate using the hand-held device. It is also possible for the processing device to have a drill, housed in a chuck, for drilling a borehole in a subsurface.
  • a “fastening element” can be understood in particular as a body that can be introduced into a substrate or anchoring base using the hand-held device, in particular by rotating. The fastening element is preferably a screw.
  • the term "underground” can be understood in particular as a wall, in particular a vertical wall, a ceiling, a floor or a device (e.g. a piece of furniture).
  • Materials for such an anchoring base are in particular wood or wooden building materials, or also concrete and masonry building materials, metal or plastic components.
  • a substrate can also be any desired composite material made from several different material components.
  • the substrate can have cavities or can be solid (i.e. free of cavities).
  • the term "detection unit” can be understood in particular as a component or assembly that can have one or more sensor elements (in particular torque sensors) for generating sensor data. Sensor data generated by such a sensor element can be used to draw conclusions about a power transmission (In particular longitudinal force transmission and/or torque transmission) when working the subsoil.
  • a sensor element can be designed to detect torque, longitudinal force, temperature, speed and/or acceleration, optical detection, acoustic detection, haptic detection detection, an electrical, magnetic or electromagnetic detection, etc. It is particularly advantageously possible to combine several of the detection mechanisms mentioned and others with one another.
  • the detection unit can have at least one strain gauge.
  • control unit can be understood to mean, in particular, a component or assembly that can have a controlling effect on the handheld device or individual assemblies of the handheld device (in particular on the processing device, a power supply device, etc.) and thus an operation or can set an operating mode of the hand-held device.
  • the control unit can set the operation or the operating mode of the hand-held device or a part thereof based on the detection data which are detected by the detection unit.
  • the control unit can therefore in particular carry out a control function.
  • the control unit can have at least one processor to carry out the arithmetic tasks used for the open-loop or closed-loop control.
  • communicatively coupled can be understood in particular to mean that two or more components or assemblies of the handheld device (in particular the detection unit and the control unit) can be configured for the unidirectional or bidirectional exchange of data.
  • a communicative coupling can be configured, for example wired (e.g. via at least one electrical line inside and/or outside the handset) or wireless (e.g. by transmitting electromagnetic radiation, such as visible light, infrared light or radio frequency radiation).
  • Such a communicable coupling can also be via a
  • Communication network done, for example, a mobile network, an intranet or the public Internet.
  • the communicable coupling can be implemented via radio, via a cable connection and/or via a communication connection inside the hand-held device.
  • target specification can include, in particular, one or more parameter values (e.g. a transmitted torque, a desired speed, etc.) and/or one or more operating instructions (for example a time course of a torque to be applied) are understood, on the basis of which a processing task for processing a subsurface is to be carried out.
  • the target specification can therefore relate to a desired, specified or ideal sequence of a processing task for processing the subsoil.
  • the term "retrofit kit” can be understood in particular as a kit consisting of one or more modules, adapters, components or assemblies, which is configured to be able to be retrofitted or installed in an already existing functional hand-held device.
  • the components can be used for this purpose of the retrofit kit must be structurally and functionally adapted to the components of the existing handset and the handset to be retrofitted.To retrofit the handset, it may be sufficient to attach the one or more components of the retrofit kit to the handset, optionally perform a configuration or installation, and then the retrofitted Use hand-held device to carry out a processing task for processing the subsoil using the detection unit and the control unit.
  • a hand-held device for processing a subsurface which detects a force transmission characteristic (e.g. a transmitted torque) by sensors and, if necessary, adapts the processing of the subsurface on the basis of the detected force transmission characteristic in order to carry out the subsurface processing according to a target specification and to fully or partially compensate for any deviations from the target specification.
  • a force transmission characteristic e.g. a transmitted torque
  • Such a hand tool can thus, for example, measure a force-related parameter (for example a torque) in the area of its tip by means of the detection unit, preferably directly at the point of force transmission.
  • the result of this measurement can then be used to determine any deviations from a desired target specification and to adjust the control of the handheld device so that any discrepancies between the actual process characterized by sensors and a target process defined by the target specification can be fully or partially compensated or corrected when executing a subsurface processing task.
  • a detection unit and a control unit design the components used for the detection-based control of the execution of a subsurface processing task to meet a target specification, namely a detection unit and a control unit, as a module or modules that can easily be used in a conventional hand-held device without such a module Functionality can or can be retrofitted.
  • a hand-held device can be used with or without the retrofit kit for processing a subsurface.
  • This also makes it possible to retrofit existing handheld devices with a combined detection and control architecture or to provide corresponding detection and control modules together for a number of handheld devices and, if necessary, to attach them to a specific handheld device in order to expand its functionality. It is clearly possible with such a modular architecture to adapt a standard hand-held device in such a way that actual force transmission parameters can be detected and the hand-held device can be controlled in accordance with the detected force transmission parameters in order to achieve a target specification.
  • exemplary embodiments of the invention show advantages: On the one hand, according to an exemplary embodiment, there is the possibility of measured data (which can be indicative of a torque, for example) via a wired or wireless connection to another module of the handset or even to another device. Furthermore, the control unit and/or the detection unit can be operated using the same energy supply device (in particular the same rechargeable battery or the same battery) that is also used to supply the other components of the hand-held device. According to exemplary embodiments of the invention, it can be particularly advantageous to use a retrofit kit made up of a detection unit and a control unit for upgrading or upgrading a conventional hand-held device. This retrofit option makes it unnecessary to purchase a completely new cordless hand-held power tool with this function; instead, the detection or control module can simply be fitted to a conventional hand-held device as required.
  • the detection unit can be attached or attached to the processing device, in particular as a removable detection adapter.
  • the detection unit can be designed as a separate module that can be attached to the hand-held device, and in particular to its processing device, or not. This configuration makes it easier to retrofit a conventional hand-held device with a detection unit. Attaching the detection unit to the processing device is particularly advantageous since the detection of at least one parameter indicative of the force transmission then takes place directly at the position at which the subsoil is processed.
  • An associated detection unit can have a first interface for connection to the main housing of the hand-held device and a second interface for connection to the processing device.
  • the hand-held device can have an energy supply device, which is designed to provide drive energy for driving the processing device.
  • the energy supply device can be arranged on the hand-held device so that it can be removed, so that a control unit designed as a separate module can be interposed between the battery and a main housing of the hand-held device.
  • a control unit can have a first interface for connecting to the main housing of the handset and a second interface for connecting to the power supply device.
  • the energy supply device can be an accumulator or a battery, or a connection to a power grid.
  • the control unit can be attachable or attached to the energy supply device, in particular as a removable control adapter.
  • the control unit can be designed as a separate module that can optionally be attached to the hand-held device, and in particular to its energy supply device, or not. This configuration makes it easier to retrofit a conventional hand-held device with a control unit. Attaching the control unit to the energy supply device is particularly advantageous since the control of the energy supply has a sensitive influence on the processing of the subsoil. In particular, the control unit can adjust the degree of energy supply by the energy supply device to the processing device.
  • the processing device can be embodied as a setting device for setting a fastener into the substrate (in particular for rotating a fastener into the substrate) and/or as a drilling device for drilling a hole in the substrate.
  • the hand-held device can be designed to be operable selectively with or without the detection unit and/or with or without the control unit, so that the hand-held device can also be operated without a detection unit and/or control unit.
  • the hand-held device can also be functional for processing a subsurface without or with a removed detection unit and without or with a removed control unit.
  • a control unit or a detection unit which can be designed as two separate modules or as a common module, a conventional hand-held device can also be equipped with a corresponding additional functionality, at least temporarily.
  • the detection unit and the control unit can form an assembly that is physically connected to one another and can be handled separately from the rest of the hand-held device.
  • FIG. 2 Such an embodiment is shown in FIG. 2, for example.
  • the detection unit and control unit are designed as a common body, handling by a user is particularly easy.
  • an appropriate shaping of the component that contains the detection unit and control unit can enable an intuitive attachment of both the detection unit and the control unit to a hand-held device that is to be retrofitted. Incorrect assembly can thus be reliably prevented, since this is made mechanically impossible by the shape of the common component in relation to the hand-held device without a detection unit and without a control unit.
  • the handheld device can have a connecting body mechanically connecting the detection unit and the control unit outside the rest of the handheld device.
  • the connecting body can be a rigid strut that can be held manually by a user for mounting the common detection and control module on the hand-held device.
  • the struts can be arranged at an angle when the Processing device for horizontal processing of a vertical substrate is attached to the substrate.
  • the connecting body can have a communication device for communicatively coupling the detection unit and the control unit.
  • the connecting body designed as a rigid strut, can mechanically connect the detection unit and the control unit and also contain a communication device (for example an electrical connecting line or a fiber optic cable) for communication between the detection unit and the control unit.
  • the detection unit can be designed to detect the detection data indicative of a power transmission when processing the subsoil by means of the processing device at the start of a processing task. For example, if a user starts rotating a fastener (e.g. a screw) in a substrate without pre-drilling, the contact pressure exerted by the user and/or the torque transmitted to the fastener can be measured using the detection unit. This makes it possible to determine whether or not a user carries out the setting task correctly, in particular with a force transmission that corresponds to a target specification.
  • a fastener e.g. a screw
  • the control unit can be designed, based on the detection data detected at the beginning of the processing task, to change the processing of the subsurface in such a way that the processing task continues to be carried out in accordance with the target specification. If, by evaluating the detection data determined by the detection unit at the beginning of the setting process, it is recognized that the force transmission caused by the user deviates from the target specification during the beginning of the setting task, the control unit can automatically change the force transmission when working the subsoil , to the actual To bring power transmission to a target specification in terms of power transmission to accomplish the subsurface processing task. For this purpose, for example, a speed can be increased or decreased compared to a user specification.
  • control unit can be designed, based on properties of a processing task currently to be executed in a database (in particular those entered by the user via a user interface and/or detected by the detection unit), a target specification assigned to the current processing task from a set stored in the database to find and execute target specifications associated with different processing tasks.
  • a processing task to be carried out can depend, for example, on the substrate (in particular substrate material, substrate hardness and/or the presence or absence of cavities in the substrate) and on a fastener (in particular type of fastener, material of fastener and/or geometry of fastener).
  • a fastening task can be defined by user input and/or by detection data that can be determined by the detection unit (e.g.
  • optical detection of the subsoil detection of a bit or drill used, detection of a resistance of the subsoil during a drilling or setting process), etc. If the underground processing task has been identified or is already known, a suitable data set with information regarding the target specification can be selected from the database and subsequently used.
  • the hand-held device can have a storage device with the database. If a memory device with data records relating to various underground processing tasks is stored in the hand-held device itself, it can be used without communication between the handheld device and the environment, a suitable data set can be selected and used.
  • the hand-held device can have a communication device for communicating with the database arranged outside of the hand-held device, in particular in a cloud.
  • the handset can be communicatively coupled to a database in a cloud via a communications network (particularly the Internet).
  • a communications network particularly the Internet
  • the set of target specifications for different machining tasks can have target characteristics with regard to at least one operating parameter (in particular with regard to at least one operating parameter from a group consisting of a torque, an impact number, a speed and an electric drive current). If a specific processing task has been recognized or defined, the operating parameters of the hand-held device can be set accordingly and used automatically (i.e. without additional user activity).
  • control unit can be designed, based on a comparison between the detection data with regard to the at least one operating parameter and the target specification with regard to the at least one operating parameter, at least one value of the at least one operating parameter during the execution of the processing task using the hand-held device according to the to change the target specification.
  • the changed target specification can be stored in a database. In this way, suitable data sets can be stored as future target specifications for future underground processing tasks. This eliminates redundant computing overhead be avoided when performing the same subsurface preparation task repeatedly.
  • control unit can be designed to store documentation data indicative of actually carrying out the processing of the subsoil.
  • documentation data can allow conclusions to be drawn at any later point in time as to how a subsurface processing task has been carried out. For example, for each
  • Subsoil processing task an associated record are stored in a database.
  • documentation data stored in this way can also be used as a target specification for future processing of a subsurface.
  • the hand-held device can have a memory device for storing the documentation data.
  • the hand-held device can have a communication device for communicating the documentation data to an entity outside of the hand-held device, in particular to a database stored in a cloud.
  • documentation data can be stored locally in the handheld device and/or centrally in a cloud.
  • the detection unit and the control unit can be designed to iteratively repeat the processes of detecting the detection data using the detection unit and controlling the processing of the subsurface using the control unit according to the target specification during processing of the subsurface at least once. In a first iteration, if there was a discrepancy between a target specification and an actual implementation
  • the changed actual implementation can now be compared again with the target specification, and any remaining discrepancy can be further corrected. This process can be repeated until the actual implementation approximates the target specification with sufficient precision.
  • the hand-held device can have at least one insertion device for inserting at least one module from a group consisting of the control unit, the detection unit and a communication device.
  • an insertion slot or the like can be formed at a suitable point on the handheld device, which allows intuitive insertion or removal of a control module, a detection module, a communication module or a combination of two or three elements consisting of the control unit, the detection unit and the communication device exist, take place.
  • Such a configuration enables a particularly simple retrofitting of a hand-held device designed by default without detection and control resources with a corresponding functionality.
  • the hand-held device can have a data interface for the user to input the target specification or a subsurface processing task.
  • the user can define a subsurface processing task to be carried out subsequently in a particularly convenient manner.
  • the user can specify the substrate to be processed, a tool element to be attached to the processing device (in particular a drill or a bit), a fastening element to be processed using the processing device (e.g. a screw) and/or a description of the processing task to be performed (e.g. pre-drilling or pre-drilled setting of a fastening element with or without dowels).
  • the functionality of the detection unit in particular a definition of to be detected Detection data
  • the control unit the manner in which it is to be controlled or regulated
  • the hand-held device can have a manual user interface as a data interface for manual input of the target specification by a user.
  • a touchpad or a keypad can be provided on the hand-held device for this purpose.
  • the handheld device can have a communication device for communicating between the data interface and an entity outside of the handheld device (in particular an app of a user terminal and/or a cloud).
  • a user can then enter parameter values and/or control commands defining the target specification using the user terminal (e.g. a smartphone or a tablet), in particular via a user interface that is defined using an app installed on the user terminal.
  • the commands conveniently entered on the user terminal can then be transmitted wirelessly to the hand-held device, for example via a cellular network or the Internet.
  • the hand-held device can have a scanner as a data interface for scanning an access code to make data indicative of the target specification accessible.
  • a scanner as a data interface for scanning an access code to make data indicative of the target specification accessible.
  • packaging for a fastening element to be set can be equipped with a QR code that can encode parameter values and/or control commands that define a target specification. If a camera of the hand-held device has detected such a QR code, it can be decrypted and either itself provide the parameter values and/or control commands or communicate a link via which the parameter values and/or control commands can be called up.
  • QR code can encode parameter values and/or control commands that define a target specification.
  • the method can include retrofitting the hand-held device with the detection unit and/or the control unit exhibit.
  • the detection unit and the control unit can be designed, for example, as separate adapter modules or as an assembly that is physically connected to one another and can be handled separately from the rest of the hand-held device.
  • the hand-held device can have a removable retrofit kit with the features described above for providing the detection unit and the control unit. For retrofitting, it may be sufficient to attach a detection module and a control module to the handset. On the one hand, these modules can be designed for positive attachment to the hand-held device, so that the hand-held device together with these modules forms a unit that can be handled as a whole.
  • the modules when attached to the hand-held device, they can be designed in such a way that they install themselves automatically on the hand-held device, for example processing a corresponding pairing protocol. Thus, a user does not need to do anything other than attach the module or modules to the handheld device and then begin the subsurface preparation task.
  • the detection unit can be removably attached to the outside of the processing device, in particular without the use of tools.
  • the detection unit can be plugged onto the processing device on the underground side, in particular without tools.
  • the detection unit can be mounted detachably between the processing device and a device housing of the hand-held device, in particular without the use of tools.
  • the detection unit can, for example, be inserted between the processing device and the device housing when the hand-held device is in the assembled state, or can be placed on the device housing or on the processing device after temporary removal of the processing device from the device housing, before the processing device, the mounted detection unit and the device housing are attached to one another (in particular tool-free).
  • the control unit can be inserted into the energy supply device in a removable manner, in particular tool free.
  • an energy supply device can be formed with an insertion shaft for inserting a control unit designed as a module.
  • the control unit can be mounted detachably between the energy supply device and the device housing of the hand-held device, in particular without the use of tools.
  • the energy supply device can first be removed from the rest of the hand-held device (in particular without tools), and then the control unit can be attached either to the device housing or to the energy supply device before the device housing, mounted control unit and energy supply device are assembled (in particular without tools).
  • the hand-held device can be a drill.
  • the hand-held device can be a cordless screwdriver, a cordless drill, a screwdriver, an impulse screwdriver, a ratchet screwdriver, an impact wrench, in particular a cordless impact wrench, and/or a hammer drill or have a corresponding functionality.
  • FIG. 1 shows a hand-held device according to an exemplary embodiment of the invention.
  • FIG. 2 shows a hand-held device being retrofitted with a retrofit kit according to an exemplary embodiment of the invention.
  • FIG. 3 shows a hand-held device according to another exemplary embodiment of the invention.
  • FIG. 4 shows a three-dimensional view of a hand-held device
  • FIG. 5 shows a detail of the hand-held device according to another exemplary embodiment of the invention. Identical or similar components in different figures are provided with the same reference numbers.
  • a hand-held device in which an actual measurement of at least one force transmission parameter, preferably at a tip of the hand-held device, is made possible by means of a detection unit.
  • This measurement can be used to carry out and/or track control of the hand-held device accordingly, in particular if discrepancies with respect to a target specification for carrying out a subsurface processing task are detected by sensors.
  • a control can bring about an adjustment of operating parameters or even a switching off of the hand-held device.
  • an actually transmitted torque can be detected and a speed can be controlled based thereon.
  • a number of subsequent hits can be controlled accordingly (e.g. three more hits) and the hammer mechanism can then be switched off.
  • one or more torque, documentation, and/or control adapters are provided that provide an actual torque measurement, documentation, or torque-transmitting
  • Subsoil processing task and / or control of a handheld device based on recorded torque data allows or enable.
  • fastening means can be screwed in or screwed in in an optimal manner, i.e. in accordance with a target specification, so that there are no traces of or damage to the material surface (e.g. wood). Errors caused by incorrect assembly can be avoided by professional, certification-compliant tightening of anchors (e.g. to a target torque of 40 Nm ⁇ 2%). Furthermore, exemplary embodiments of the invention make it possible to trace the specific work steps for project management.
  • cordless handheld power tools such as a cordless impact wrench
  • a torque adapter as handheld devices.
  • sensor-based, reactive control of the cordless hand-held power tool can be made possible in order to screw in a fastening element with a defined torque.
  • the torque adapter can be made up of two components or modules. These are the detection or measuring unit (which can be attached, for example, as an intermediate attachment on a front part of the cordless hand tool) and the Control unit (which can be attached, for example, as an intermediate attachment between the battery and the hand tool housing). These two modules can communicate with each other during operation in order to enable a desired or an optimal torque for screwing in a fastener and to document the process.
  • the detection or measuring unit (advantageously designed as an intermediate attachment or intermediate attachment or adapter on the front part of the battery-powered hand tool) can measure a state with regard to the power transmission (in particular torque transmission) at the start of screwing, for example a torque a speed and/or an impact number.
  • the detection or measuring unit can therefore detect or measure an actual state while the subsurface processing task is being carried out.
  • This actual state i.e. the detected or measured values
  • can be sent or transmitted to a control unit e.g. designed as an adapter between the rechargeable battery and the housing of the hand-held power tool.
  • the detected actual state can thereby be made known to the control unit.
  • the desired state or a desired specification of the control unit can be known, for example stored in a handheld device-internal or handheld device-external memory.
  • the desired state or the desired specification can be stored in an internal memory of the control unit or the hand-held device at the factory, for example, or can alternatively be downloaded from a cloud via a communication network (for example the Internet).
  • Said target state or the target specification can include associated sets of rules for different fastening elements and for different conditions or subsurface processing tasks.
  • Such Rules can include, for example, curves or characteristic curves of torque, impact rate, speed or current.
  • the associated parameters such as the transmitted torque, can be corrected.
  • This information determined by the control unit can then be sent to the detection or measuring unit and/or to the processing device and/or to an energy supply device so that it adapts the relevant actual value to the target value or target specification.
  • a screw of a specific type can be optimally screwed into a specific substrate made of a specific material with the intended torque.
  • several iterations of the process described can be carried out to achieve the target state or the target specification will.
  • These iterations and associated data can be stored as work steps on an internal memory of the control unit or on another memory that is internal to the handheld device or external to the handheld device, and can thereby be documented.
  • the documentation of the sequence of work steps allows traceability, certification and tracing of the screwing processes and can be stored in a memory.
  • said documentation data can be uploaded to a cloud.
  • the control unit which can be arranged according to an exemplary embodiment between a battery and a housing of the handheld power tool, can also be inserted or inserted as a module in the handheld power tool or in the battery, depending on whether a There is a slot for a module in the hand tool or in the battery.
  • a user can manually enter target parameters corresponding to a desired target specification by pressing buttons (for example on the battery, on the hand-held power tool, on a measuring and/or control unit).
  • buttons for example on the battery, on the hand-held power tool, on a measuring and/or control unit.
  • these can also be entered via a mobile device, such as a smartphone or tablet, via Bluetooth with the help of an app, etc.
  • a scanner can be integrated into the control unit, which can be designed to scan a code on a pack of fasteners in order to automatically download a target specification (in particular in the form of corresponding settings for optimal screwing) and set accordingly.
  • the documentation can preferably be transmitted to a cloud by means of an integrated transceiver and/or via a module that can be inserted or used, for example, in the hand-held power tool or in the battery.
  • a combination of a torque adapter (in particular designed as an intermediate offset) and a control adapter (in particular between the rechargeable battery and the hand-held power tool) can be provided, and their communication with one another can be made possible. This allows reactive control or regulation of a cordless hand-held power tool or another hand-held device.
  • the user can create a characteristic curve for the torque, speed, number of blows and/or current for a specific screw, which can be called up or used in the future for setting processes. It is also possible to upload such a target specification to a cloud for future underground processing tasks. It is advantageously possible to also retrofit conventional cordless hand-held power tools with a detection adapter and a control adapter or with a combined detection and control adapter, so that a new purchase of a hand-held device can be dispensed with without having to do without detection-data-based control or regulation of a processing device of the hand-held device have to.
  • a corresponding retrofit kit can advantageously be equipped with downward compatibility of the adapter, so that the retrofit kit can also be compatible with older hand-held power tools.
  • a simplification of the work process and/or the documentation of a subsurface processing task is made possible.
  • exemplary embodiments allow errors to be avoided by monitoring the torque of an actual state in comparison to a target state.
  • FIG. 1 shows a hand-held device 100 designed, for example, as a cordless impact wrench, according to an exemplary embodiment of the invention.
  • a cordless impact wrench can, for example, quickly screw in long threaded screws at high speed and tighten them with an impact, with torques between 50 Nm and 500 Nm being used, for example.
  • fastening elements 112 for example screws
  • Impact wrenches can also be used to make and loosen screw connections, whereby a high torque is generated so that the tool does not have to be counterbalanced.
  • a fastening element 112 embodied as a screw is to be placed in a pilot hole 140 (or alternatively without a pilot hole) in a substrate 104 embodied as a masonry wall, for example, by means of the cordless impact wrench shown.
  • a pilot hole 140 or alternatively without a pilot hole
  • a substrate 104 embodied as a masonry wall
  • cordless impact wrench shown.
  • Hand-held device 100 are specially designed, as will be described in more detail below.
  • the hand-held device 100 shown is used for manual actuation by a user.
  • the user can hold the hand-held device 100 by hand on a handle 142 and press an actuation button 144 on the handle 142 to activate it.
  • a device housing 146 of the handset 100 defines a main body of the handset 100 that encloses functional components (e.g., an electric drive motor) of the handset 100 .
  • the hand-held device 100 has a processing device 102 at one end on the underground side, which is designed for processing the underground 104 .
  • the processing device 102 can have a chuck into which a suitable tool element for screwing the fastening element 112 into the subsurface 104 can be inserted in accordance with a subsurface processing task to be carried out.
  • a suitable tool element can, for example, be a bit with an output (in particular a Phillips bit) for engaging in a drive (in particular a Phillips) in a head of the fastening element 112 .
  • Such a tool element attached to the processing device 102 can be set in rotation by means of the processing device 102, which can be transferred to the fastening element 112, which is thereby set in the substrate 104.
  • a power transmission in the form of torque and/or impacts can be transmitted from the hand-held device 100 to the fastening element 112 by means of the processing device 102, as a result of which the fastening element 112 is inserted into the substrate 104 and fixed there.
  • a power supply device 110 designed as a removable and rechargeable battery module in the illustrated embodiment is used to provide electrical drive energy for driving the processing device 102.
  • the power supply device 110 designed as a battery module can be temporarily disconnected from the Handle 142 on the main body can be detached from and recharged, for example, by means of a charging unit connected to a mains power supply.
  • a suitable tool element in particular a suitable bit
  • the output of the tool element engages the drive of the fastening element 112 .
  • the hand-held device 100 described so far contains components that are known per se.
  • the hand-held device 100 shown can easily be retrofitted in the manner described below using a one-piece retrofit kit 150 in the exemplary embodiment shown, in order to provide improved functionality.
  • a detection unit 106 of the retrofit kit 150 is placed on the processing device 102 or mounted between the processing device 102 and the main body of the hand-held device 100 delimited by the device housing 146 .
  • This detection unit 106 is designed to detect detection data indicative of a force transmission when processing the subsoil 104 by means of the processing device 102 .
  • detection unit 106 has one or more sensors, for example a torque sensor for detecting a transmitted torque, a longitudinal force sensor for detecting a transmitted longitudinal force or impact force, etc. By detecting a transmitted torque and/or a transmitted longitudinal force or impact force, the power transmission of the hand-held device 100 on the fastening element 112 and the substrate 104 are detected by sensors.
  • the detection unit 106 can be placed on the processing device 102 from the underground side, for example.
  • the detection unit 106 at their each other opposite ends must be adapted to the geometry of the processing device 102 or the device housing 146 and are therefore mounted in a form-fitting manner between the processing device 102 and the device housing 146 .
  • a control unit 108 of the retrofit kit 150 is inserted between the main body delimited by the device housing 146 and the removable energy supply device 110 (in the form of a rechargeable battery module).
  • Control unit 108 is coupled to enable communication with detection unit 106, for example via an electrical or optical connecting line in a connecting body 116, embodied as a strut, for example, of retrofit kit 150 between detection unit 106 and control unit 108.
  • detection unit 106 and control unit 108 are mechanically and communicatively connected by connector body 116 external to the remainder of handset 100 .
  • the connecting body 116 preferably has a communication device 118 in its interior for coupling the detection unit 106 and the control unit 108 so that they can communicate.
  • the connecting body 116 can advantageously also form a mechanical connection between the detection unit 106 and the control unit 108 .
  • the communication device 118 can be used to transmit detection data detected by the detection unit 106 , which characterize the power transmission when working the subsoil 104 , to the control unit 108 .
  • the control unit 108 can have a processor which can process the detection data in order to control or regulate the processing of the subsurface 104 based on the detection data.
  • control unit 108 can compare the detection data characterizing the actual processing of the subsoil 104 with a target specification.
  • the target specification can specify the manner in which the processing of the subsurface 104 should ideally take place using the hand-held device 100 . If the control unit 108 detects discrepancies between the actual processing and the target specification, the control unit 108 can control the functional components of the Adapt hand-held device 100 in order to ensure compliance with or at least better approximation of the target specification during further processing of the subsurface 104 .
  • one or more operating parameters of the hand-held device 100 can be set, changed or tracked. For example, the torque transmitted, a number and/or an intensity of impacts exerted, etc.
  • control unit 108 can be adjusted accordingly by the control unit 108 .
  • the control unit 108 can actuate the energy supply device 110 in a suitable manner to provide electrical energy to the drive motor in the device housing 146 or correspondingly limit the electrical energy in order to meet the target specification.
  • control unit 108 is advantageously adapted at its opposite ends to the geometry of energy supply device 110 or device housing 146, so that control unit 108 can be mounted in a form-fitting manner between processing device 102 and device housing 146 and directly between the described components of hand-held device 100 can intervene in a controlling manner.
  • the control unit 108 and the detection unit 106 are connected by means of the connecting body 116 to form a retrofit kit 150 that can be handled in one piece, so that the retrofit kit 150 can be attached as a whole to a conventional hand-held device 100 by a user.
  • the user only has to place the detection unit 106 on the processing device 102 .
  • a user can detachably mount the detection unit 106 between the processing device 102 and a processing-side interface of the device housing 146 .
  • the control unit 108 can be detachably mounted between the power supply device 110 and a power supply-side interface of the device housing 146 .
  • the geometry of the connecting body 116 also defines the relative position and the relative orientation between the detection unit 106 and the control unit 108, so that the retrofit kit 150 is assembled incorrectly the handset 100 is mechanically impossible.
  • a functional connection between the retrofit kit 150 and the handheld device 100 is also easily formed.
  • this functional connection forms a force coupling with the detection unit 106 , which enables force transmission parameters to be detected by the detection unit 106 when the subsoil 104 is processed.
  • this functional connection on the part of the energy supply device 110 enables a control connection to the control unit 108, which controls or regulates the provision of electrical drive energy from the energy supply device 110 to the drive motor, embodied, for example, as an electric motor in the device housing 146.
  • connecting body 116 embodied as a strut, of retrofit kit 150 runs along a direct oblique connecting line between detection unit 106 and control unit 108, so that together with device housing 146, the result is a substantially triangular cross section of retrofitted handheld device 100. This also ensures that the operating button 144 remains operable by a user and the handle 142 remains within reach of a user even when the retrofit kit 150 is attached to the handset 100 .
  • Hand-held device 100 is advantageously designed to be operable selectively with or without detection unit 106 and/or with or without control unit 108, so that hand-held device 100 can also be operated without detection unit 106 and/or control unit 108.
  • the hand-held device 100 can therefore also be operated in a conventional manner without a retrofit kit 150 .
  • a conventional hand-held device 100 can also be retrofitted with the described detection and control functionality simply by mechanically attaching the one-piece retrofit kit 150 .
  • the detection unit 106 and the control unit 108 an assembly that is physically connected to one another and can be handled separately from the rest of the handset 100 (see reference number 114 in FIG. 2).
  • the detection unit 106 can be designed to detect the detection data indicative of a force transmission when processing the subsoil 104 by means of the processing device 102 at the beginning of a processing task.
  • the user begins to rotate the fastening element 112 that is in engagement with the tool element on the processing device 102 by actuating the actuating button 144 and thereby place it in the pilot bore 140 in the substructure 104, the torque and/or longitudinal force can be detected .
  • Corresponding detection data are transmitted from the detection unit 106 to the control unit 108 via the communication device 118 .
  • control unit 108 is designed to adapt the further processing of the subsurface 104 based on the detection data detected at the beginning of the processing task in such a way that the further execution of the processing task takes place in accordance with a target specification. If control unit 108 determines, for example, that the torque actually transmitted and detected by sensors is too large or too small compared to a target torque defined in the target specification, control unit 108 can influence energy supply device 110 and thereby also the drive motor in device housing 146 in such a way that that subsequently an actual torque of a suitable size corresponding to the target torque is exerted by the processing device 102 on the fastening element 112 .
  • control unit 108 can also be configured to generate a target specification assigned to the current processing task from a database stored in properties based on properties entered by the user via a user interface 130 and/or detected by detection unit 106 set of different Locate, select and execute processing tasks associated target specifications.
  • the hand-held device 100 can have an electronic storage device 120 in which corresponding data records of the Sol I specifications database are stored.
  • the storage device 120 is attached to the control unit 108 .
  • the control unit 108 can infer a specific processing task from the detection data detected by the detection unit 106 or through an input by the user via the user interface 130 .
  • the control unit 108 can recognize that a user has inserted an M8 screw (e.g.
  • the hand-held device 100 can have a data interface 126 in the form of the manual user interface 130 for manual input of the target specification and/or a processing task to be carried out by a user.
  • the user interface 130 may be a touchpad that allows a user to define a target setting or a processing task to be performed.
  • a large number of data sets corresponding to different processing tasks can be stored in the database of the storage device 120 .
  • the control unit 108 can search the database and - for example according to the principle of a best match - select a most suitable data set, which can then be used as a target specification for carrying out the processing task.
  • control unit 108 can select a target specification that best suits this processing task, the execution of which by hand-held device 100 is then implemented by appropriate control by control unit 108.
  • the set of target specifications for different processing tasks can advantageously have target characteristics with regard to at least one corresponding operating parameter of hand-held device 100.
  • Such operating parameters can be a torque, a number of impacts, a speed, an electric drive current, etc., for example.
  • Such a target characteristic curve can specify a time target course of the corresponding operating parameter, which is followed by appropriate control of the hand-held device 100 by means of the control unit 108 during the processing of the subsoil 104 .
  • control unit 108 can be configured based on a comparison between the detection data with regard to one or more operating parameters and the target specification with regard to the one or more operating parameters values of the one or more operating parameters while the processing task is being performed using hand-held device 100 according to the target -Change constraint to perform the machining task in accordance with the target constraint.
  • control unit 108 can also be designed to store documentation data indicative of an actual execution of the processing of the subsoil 104 . Using data sets corresponding to the documentation data, it is also possible to document retrospectively how an underground processing task can actually be carried out. For this purpose, the documentation data detected by the detection unit 106 can be stored in the storage device 120, for example.
  • control unit 108 can be designed to iteratively repeat the processes of detecting the detection data by means of the detection unit 106 and controlling the processing of the subsoil 104 according to the target specification at least once.
  • a multiple executed control loop can be implemented, which continuously tracks the actual operating parameters of the hand-held device 100 in several repeated iterations of the target specification and thereby dynamically adapts the operating parameters to the target specification.
  • FIG. 2 shows a retrofitting of a hand-held device 100 with a retrofit kit 150 according to an exemplary embodiment of the invention.
  • a view 160 shows a conventional handheld device 100 with processing device 102, energy supply device 110, handle 142, actuating button 144 and other functional components (for example drive motor) in a main body of handheld device 100 delimited by device housing 146.
  • a view 162 shows how the conventional hand-held device 100 according to view 160 has been retrofitted by simply plugging it on with a one-piece retrofit kit 150 which is shown separately in a view 164 .
  • the retrofit kit 150 shown in view 164 for retrofitting the hand-held device 100 according to view 160 has an on the processing device 102 subsequently attachable detection unit 106, which is designed to detect indicative of a power transmission when processing the subsurface 104 by means of the processing device 102 detection data.
  • the retrofit kit 150 also contains a control unit 108 that can be retrofitted to the energy supply device 110, which is coupled with the detection unit 106 so that it can communicate and which is set up based on the detection data for controlling the processing of the subsoil 104 according to a target specification.
  • detection unit 106 is removably attached to processing device 102 and control unit 108 is attached between power supply device 110 and device housing 146 of handheld device 100 .
  • control unit 108 is attached between power supply device 110 and device housing 146 of handheld device 100 .
  • Figure 2 shows an exemplary embodiment of a torque, documentation and control adapter in the form of retrofit kit 150.
  • FIG. 3 shows a hand-held device 100 according to another exemplary embodiment of the invention.
  • the exemplary embodiment according to FIG. 3 differs from the exemplary embodiment according to FIG. 1 in particular in that, according to FIG Detection unit 106 and the control unit 108 formed as separate modules.
  • the detection unit 106 can be attached to and removed from the processing device 102 separately from the control unit 108 and is therefore designed as a removable detection adapter.
  • the control unit 108 can be attached to and removed from the energy supply device 110 separately from the detection unit 106 and is therefore designed as a removable control adapter.
  • the connecting body 116 is not necessary, so that the retrofit kit 150 according to FIG. 3 can be designed to be particularly compact.
  • the retrofit kit 150 according to FIG. 5 is designed in the form of two independently manageable modules in the form of the detection adapter and the control adapter.
  • a (e.g. electrical or optical) communication line as a component of the communication device 118 is routed through the interior of the device housing 146 .
  • the hand-held device 100 has a wirelessly operating component of the communication device 118, which is designed for wireless communication with an entity arranged outside of the hand-held device 100 according to FIG. 3 with a database. More precisely, a wireless communication interface of the communication device 118 of the handheld device 100 communicates via a communication network 166, for example the Internet, with the storage device 120 arranged in a cloud 122 according to FIG different underground processing tasks, documentation data sets, etc. can be stored. The wireless communication interface of the communication device 118 of the hand-held device 100 is thus also used to transmit documentation data to the database stored in the cloud 122 .
  • a communication network 166 for example the Internet
  • the hand-held device 100 can also be designed to communicate with the hand-held device-internal data interface 126 with the cloud 122 and/or with another entity 132 using the wireless communication interface of the communication device 118 .
  • the communication can take place, for example, with an app that can be installed on a user terminal 134 .
  • the user terminal 134 may be a cellular device, for example.
  • a user can thus transmit data to the hand-held device 100 via the user terminal 134, for example to define a subsurface processing task to be carried out using the hand-held device 100 and/or to enter a target specification.
  • the hand-held device 100 can also transmit data to the user terminal 134, for example documentation data.
  • the hand-held device 100 has a scanner 136 at the data interface 126 for scanning an access code for making data indicative of the target specification accessible.
  • the scanner 136 may, based on the QR code, receive information describing a subsurface preparation task using the fastener 112 and/or an associated target for performing it Determine the subsurface preparation task, for example in the QR code itself or via a link encoded in the QR code (which can indicate a corresponding address on the Internet).
  • FIG. 4 shows a three-dimensional view of a handheld device 100 and FIG. 5 shows a detail of the handheld device 100 according to another exemplary embodiment of the invention.
  • a slide-in device 124 embodied, for example, as a slot or shaft can be provided on the energy supply device 110 embodied here as a removable battery module for inserting a module that has the described function of a control unit 108 can run.
  • a slide-in device 124 embodied, for example, as a slot or shaft, can also be formed in the area of the processing device 102 for inserting a module that performs the function of a communication device 118 described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

L'invention concerne un dispositif portatif (100) destiné à être actionné manuellement par un utilisateur. Le dispositif portatif (100) comporte un dispositif d'usinage (102) qui est conçu pour usiner une surface sous-jacente (104), une unité de détection (106) qui est conçue pour détecter des données de détection qui indiquent une transmission de force lors de l'usinage de la surface sous-jacente (104) en utilisant le dispositif d'usinage (102), et une unité de commande (108) qui est couplé en communication à l'unité de détection (106) et qui est conçue pour commander le processus d'usinage de la surface sous-jacente (104) conformément à une spécification cible sur la base des données de détection.
PCT/EP2022/053276 2021-05-06 2022-02-10 Dispositif portatif avec des unités de détection et de commande WO2022233469A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21290026.0A EP4086044A1 (fr) 2021-05-06 2021-05-06 Appareil portatif pourvu d'unités de détection et de commande
EP21290026.0 2021-05-06

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WO2022233469A1 true WO2022233469A1 (fr) 2022-11-10

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040182587A1 (en) * 2002-12-16 2004-09-23 Lutz May Signal processing and control device for a power torque tool
EP2679326A1 (fr) * 2012-06-29 2014-01-01 Black & Decker Inc. Système pour améliorer le fonctionnement d'outils électriques
WO2015061370A1 (fr) 2013-10-21 2015-04-30 Milwaukee Electric Tool Corporation Adaptateur pour dispositifs d'outil électrique
DE102015209017A1 (de) 2015-05-18 2016-11-24 Robert Bosch Gmbh Zwischenvorsatz für eine Handwerkzeugmaschine
EP3290160A1 (fr) * 2016-08-11 2018-03-07 Robert Bosch GmbH Module supplémentaire destiné à être utilisé avec un appareil de travail et appareil de travail
DE102017222550A1 (de) 2017-12-13 2019-06-13 Robert Bosch Gmbh Zusatzmodul zur Verwendung mit einem Arbeitsgerät und Arbeitsgerät
WO2020146696A1 (fr) 2019-01-11 2020-07-16 Milwaukee Electric Tool Corporation Enregistreur de données d'outil électrique compact

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040182587A1 (en) * 2002-12-16 2004-09-23 Lutz May Signal processing and control device for a power torque tool
EP2679326A1 (fr) * 2012-06-29 2014-01-01 Black & Decker Inc. Système pour améliorer le fonctionnement d'outils électriques
WO2015061370A1 (fr) 2013-10-21 2015-04-30 Milwaukee Electric Tool Corporation Adaptateur pour dispositifs d'outil électrique
DE102015209017A1 (de) 2015-05-18 2016-11-24 Robert Bosch Gmbh Zwischenvorsatz für eine Handwerkzeugmaschine
EP3290160A1 (fr) * 2016-08-11 2018-03-07 Robert Bosch GmbH Module supplémentaire destiné à être utilisé avec un appareil de travail et appareil de travail
DE102017222550A1 (de) 2017-12-13 2019-06-13 Robert Bosch Gmbh Zusatzmodul zur Verwendung mit einem Arbeitsgerät und Arbeitsgerät
WO2020146696A1 (fr) 2019-01-11 2020-07-16 Milwaukee Electric Tool Corporation Enregistreur de données d'outil électrique compact

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