Remotely controllable power tools and systems used by construction robots

Abstract

The present invention relates to a powered machine tool (10), particularly a handheld machine tool, including a motor (40) and a tool holder (14) for holding a tool, such as a drilling tool, cutting tool, and / or grinding tool, where the motor (40) is designed to drive the tool holder (14). The machine tool (10) can be remotely controlled. The machine tool (10) can have a protection device (42) that can be remotely activated and / or deactivated. The present invention also relates to a system (200) consisting of such a machine tool (10) and a construction robot (210). The machine tool (10) is particularly universally and easily used with the assistance of the construction robot (210), particularly both manually and automatically.

Description

Technical Field

[0001] The present invention relates to the use of power tools by construction robots. Background Art

[0002] In order to enable construction robots to be employed as flexibly and cost-effectively as possible, it is desirable that construction robots can be used with different types of power tools.

[0003] In particular, low operating costs can be expected if power tools that can otherwise be used manually can be used together with a construction robot with almost no effort. Summary of Invention Problem to be Solved by the Invention

[0004] Accordingly, it is an object of the present invention to provide a power tool that enables both manual use and automated use by a construction robot, with as little effort as possible for switching between the two modes of use, and to supply such a power tool to a construction robot. Means for Solving the Problem

[0005] This object is achieved by a power tool, in particular a hand-held power tool, comprising a motor and a tool coupling for holding tools, for example drilling tools, cutting tools and / or grinding tools, wherein the motor is configured to drive the tool coupling, and the power tool can be remotely controlled electrically and / or wirelessly.

[0006] This is based on the idea that, in principle, power tools should be used with construction robots, and that one or more operating elements of the power tools should be mechanically affected by, for example, a hydraulic and / or pneumatic system, so that the power tools can be switched on and off by, for example, a construction robot, but that such hydraulic or pneumatic systems would each require extensive modifications in the construction robot. In addition, modifications would need to be made specifically for each power tool.

[0007] In contrast, the power tools presented here can be remotely controlled by construction robots. Remote control can be performed either wirelessly and / or via an electrical connection. No extensive additional components are required for the mechanical control unit of the power tool, especially mechanical control units specifically adapted for power tools.

[0008] Therefore, power tools can be used with construction robots with little to no preparation effort, and thus in a particularly cost-effective manner.

[0009] Nevertheless, power tools remain easily usable manually. In particular, neither electric-based nor wireless-based remote control interferes with the manual handling of power tools.

[0010] The possibility of such problem-free manual use allows for wider distribution of power tools. In particular, power tools can be handheld. Therefore, economies of scale can be utilized, resulting in further reductions in the manufacturing costs of power tools.

[0011] The power tool may have a data interface, and preferably, the power tool may be remotely controlled via the data interface.

[0012] For example, the data interface can be configured to transmit control commands, characteristic data, and / or status data.

[0013] For example, the operating mode and / or operating state of a power tool can be controlled.

[0014] In particular, power tools can be switched on and / or off via remote control.

[0015] Furthermore, it is conceivable that at least one working output, rotation direction, rotation frequency, torque, or impact frequency can be set remotely.

[0016] In the case of power tools with an impact function, it may be preferable if the impact function can also be set by remote control. Therefore, a construction robot, for example, could start drilling a hole in concrete with the impact function initially deactivated, and then activate the impact function to minimize the risk of cracking the undesirable borehole edges.

[0017] Power tools can be configured to supply recallable characteristic data, such as at least one identification data, one performance capability, such as the maximum available impact energy and / or the maximum available working power, which can be recalled, particularly via a data interface.

[0018] The power tool may also be configured to supply at least one operating state of the power tool, such as at least one rotational speed, temperature, or measurement of component wear, so that it can be recalled, particularly via a data interface.

[0019] For this purpose, it is advantageous if the data interface has a bidirectional design. Then, for example, both control commands can be transmitted from the construction robot to the power tool, and characteristic and / or status data can be transmitted from the power tool to the construction robot. Here, the control commands and / or characteristic and / or status data can also be transmitted in the opposite direction, either alternatively or additionally.

[0020] Power tools may have at least one protective device to protect the user when the power tool is being used manually.

[0021] The protective device could be, for example, a start lock, particularly a restart lock, which prevents the motor from starting simply by applying a supply voltage without any additional activation of the operating elements.

[0022] Power tools may have an actuation element, and a protective device may be implemented by the actuation element. The actuation element may be an electric switch, such as a rotary switch, slide switch, or rocker switch; an electric button, such as a push button; or an actuator, such as a knob, such as a potentiometer or slider.

[0023] Power tools may also have sensors. These sensors can be configured to detect protection status. Protection status can correspond to when a protection device is activated.

[0024] The sensors can be, for example, proximity sensors, acceleration sensors, rotation sensors, translation sensors, current and / or voltage sensors.

[0025] The protective device may be configured to reduce or stop vibration, working output, rotational frequency, speed, and / or torque so that when an event monitored by the protective device occurs, the user is intuitively notified of the occurrence of the monitored event and / or is immediately protected from its consequences.

[0026] The protection device may also be configured to block the operation of the motor. Accordingly, use of the power tool can be prevented until the monitored event no longer exists. Therefore, injury to the user can be avoided in advance.

[0027] The protection device can be deactivated, and in particular can be activatable and deactivatable. In particular, the protection device can be deactivated by remote control, and in particular can be activatable and deactivatable by remote control.

[0028] A power tool may sometimes be provided with a protection device for safe use by a human user. For example, a rotational speed controller can be provided such that the rotational speed can only be set after the rotational speed has been depressed. Therefore, inadvertent operational errors in manual use can be avoided.

[0029] Further examples of protection devices are also a blockage detection unit, for example a unit that detects that a drill bit of an electric drill is jammed in a base material, and / or an automatic torque control unit, in each case combined with automatic switch-off or at least automatic reduction of rotational speed.

[0030] A further example of a protection device is a restart lock that prevents the motor from being started without a corresponding switch or controller being depressed or generally manually actuated. Such a restart lock is provided to avoid undesired starting when charging the battery of the power tool, particularly in the case of cordless power tools.

[0031] The protection device may also be a vibration damping unit, in particular a vibration damping unit for reducing vibration in a handle section of a power tool.

[0032] The protective device may also be configured to require the user to perform a specific gesture. For example, a power tool may have two actuation elements positioned at different points so that the motor starts only when both actuation elements are actuated simultaneously. This ensures, for example, that the user holds the power tool with both hands at a defined point, thereby preventing, for example, injury to one hand.

[0033] While such protective devices can facilitate and / or protect manual use by human users, they may make use by construction robots considerably more difficult or even impossible.

[0034] For example, in the last example mentioned, the construction robot would have to be configured to mimic specific gestures in order to use power tools. Otherwise, the construction robot would not be able to use power tools.

[0035] Therefore, in such cases, if the protective device of the power tool can be stopped, especially by remote control, the range of power tools that can be used by construction robots can be expanded. In particular, if it can also be operated by remote control, it can be stopped if it interferes with use by construction robots, and, with caution, can be restarted in other circumstances.

[0036] Power tools can be configured so that the deactivation and / or activation of protective devices are actively performed, in particular by communicating corresponding control commands.

[0037] For example, power tools could be configured to passively stop and / or start by automatically detecting whether they are being used manually or automatically by a construction robot.

[0038] Power tools can have a battery interface for connecting a rechargeable battery. Therefore, power tools can be operated without a cord.

[0039] At least a portion of the data interface can be integrated into the battery interface. Remote control can then be performed via the data interface.

[0040] A system including a construction robot and a power tool is also presented, in which the power tool is mounted on the end effector of the construction robot, and the construction robot is configured to activate and / or deactivate the power tool's protective device. The power tool can be the same as the power tool described above and in either case has a protective device.

[0041] In such a system, the construction robot can deactivate protective devices before using the power tools to prevent them from further hindering actual use.

[0042] Interface adapters for connecting power tools to the end effectors of construction robots are also presented, and these interface adapters have connection points for connecting to power tools that are designed to complement the standard battery interface of the power tool.

[0043] One idea on which the present invention is based is that power tools, in particular battery-powered power tools, such as handheld electric drills, especially masonry electric drills, nail guns, electric grinding tools, electric saws, or electric chisels, typically have an energy supply interface of a particularly uniform design, standardized from at least many types of power tools, for example, from the same manufacturer.

[0044] Therefore, a battery-powered power tool has a standard battery interface, which allows a battery conforming to relevant standards to be installed in the power tool. Here, the standard battery interface can perform at least two functions; namely, firstly, the standard battery interface can be designed to securely hold the battery on the power tool. For this purpose, the standard battery interface can have, for example, a latching mechanism.

[0045] Secondly, the standard battery interface can be configured to transmit operating energy, which may be unidirectional, particularly from the battery to the power tool. The operating energy may also be bidirectional, for example, to recharge the battery by recovery. The standard battery interface may have further functions. In particular, the standard battery interface may be configured to transmit signals between the battery and the power tool. Such signal transmission may be unidirectional or bidirectional.

[0046] Therefore, the interface adapter can be installed on one side of the end effector of a construction robot. Depending on the connection point, the interface adapter can be installed on the other side, in particular, on the standard battery interface of a power tool, instead of a conventional battery. Thus, the power tool can be installed on the end effector via the interface adapter. This is possible with all power tools that have the same standard battery interface, and therefore, in general, with many different types of power tools, especially those that can be powered by batteries.

[0047] Generally, standard battery interfaces are designed to fasten and / or remove batteries without the use of tools. Therefore, power tools can also be easily and quickly detached again from the end effector, especially without the need for tools.

[0048] Such standard battery interfaces generally have a latching mechanism for securing the battery, thus ensuring that the power tool is nevertheless held firmly on the end effector.

[0049] Construction robots can be configured to perform work on walls and / or ceilings, particularly in building construction sites, civil engineering sites, and / or industrial plants.

[0050] The interface adapter may have a power tool signal interface and a construction robot signal interface for transmitting at least one signal between the construction robot and the power tool. Therefore, in addition to the mechanical connection of the construction robot to the power tool, a signal transmission connection between the two devices can also be generated by the interface adapter.

[0051] The signal can be understood to mean, for example, at least one control signal and / or at least one sensor signal.

[0052] Transmission can be unidirectional or bidirectional.

[0053] The interface adapter may also have an additional battery interface and / or an additional signal interface, thereby allowing a battery to be attached to the interface adapter.

[0054] Power tool signal interfaces and construction robot signal interfaces can also be configured to transmit operating energy. Thus, electrical operating energy can be supplied to the power tool. Here, operating energy can be understood to mean the energy substantially required to operate the power tool by conventional means. Accordingly, the signal interface can be configured to transmit instantaneous power of at least 0.1 kW, for example, at least 1 kW.

[0055] If the interface adapter has additional battery interfaces and / or additional signal interfaces, operating energy can also be transmitted to batteries located at or near these interfaces, for example, for the purpose of charging the batteries. For example, operating energy may also be transmitted from the batteries, particularly to provide an increased power level to the power tool for a short period of time.

[0056] At least a portion of the power tool signal interface can be formed as part of a connection point. For example, the power tool signal interface can use one or more electrical contacts of a connection point, or at least use them together.

[0057] Therefore, sensor signals may be transmitted via connection points.

[0058] For example, a separate control interface may be provided to transmit control signals for switching the power tool on and off, or for controlling at least one work parameter, such as rotational speed. This may be advantageous, for example, for power tools where at least one function required to control the power tool cannot be controlled via the standard battery interface.

[0059] The interface adapter may also include a signal converter configured to transform a signal received on one signal interface, for example, by changing the signal level, impedance, or signal encoding, and output the signal on the other signal interface.

[0060] In particular, the signal converter may be configured to translate sensor signals and / or control signals output in "robot language" by a construction robot into a signal format that can be processed by a power tool. Alternatively or additionally, the signal converter may also be configured to convert sensor signals and / or control signals from a power tool into a signal format that can be processed by a construction robot.

[0061] Therefore, construction robots can control different types of power tools, or conversely, receive signals from different power tools, using signals that are independent of the power tools in each case.

[0062] Here, the signal can be transmitted on a half-duplex or full-duplex basis. The signal can be differential or ground-referenced.

[0063] Alternatively or additionally, the signal converter may also convert the operating energy being transmitted.

[0064] The signal interface can be an electrical interface. For example, at least one signal can be modulated over the operating energy supply.

[0065] Alternatively or additionally, at least one of the signal interfaces may be configured for wireless data transmission, particularly optical and / or wireless-based data transmission. This is advantageous, for example, when wireless data transmission utilizes low-energy radio standards. The connection may exhibit automatic coupling. In particular, inductive, microwave-based, and / or optical, such as infrared-based, data transmission are envisioned. Such wireless data transmission is highly reliable even in extremely dusty environments, such as those commonly encountered at construction sites. Furthermore, such data transmission does not require any mechanical interaction for coupling purposes, thus simplifying coupling and uncoupling.

[0066] The interface adapter may also have a control unit configured to generate a control signal and output the control signal to at least one of two signal interfaces.

[0067] For this purpose, the interface adapter may have a microcontroller. The microcontroller may have memory, a microprocessor, and / or program code that runs on the microprocessor and is stored in memory.

[0068] Such a control unit allows the interface adapter to control the attached power tool and / or construction robot. For example, the control unit, particularly its program code, can be configured to detect a fault, such as an improper placement of the power tool on the interface adapter. It can then be configured to send a corresponding signal to the construction robot via the construction robot signal interface. For example, the construction robot can initiate a fault handling routine in response to the signal. A further example is that the power tool's control unit sends a query signal via the power tool signal interface. The power tool can then send a response signal back. For example, in this way, the control unit can query and / or set the parameters of the power tool.

[0069] The control unit can be configured to query, for example, the type or identifier of the power tool. It can then set its own parameters, such as signal converter parameters related to the conversion, according to the type or identifier, and / or transmit the parameters, in this case the type or identifier, to the construction robot via the construction robot signal interface. Similarly, the control unit can send a query signal to the construction robot and receive a response signal from the construction robot. Based on the response signal, the control unit can set the parameters of itself and / or the power tool.

[0070] In particular, the control unit can be configured to receive at least one sensor signal from the power tool signal interface and / or the construction robot signal interface. The sensor signal can then be used by the control unit for control purposes. For example, if the sensor signal relates to vibrations caused by the power tool, the control unit can send a control signal via the power tool signal interface to assume operation at a lower power and / or standby mode if the vibration of the power tool exceeds a certain level. Thus, the construction robot can be protected from mechanical overload.

[0071] Additional sensor signals may also be considered, alternatively or additionally, that indicate at least one characteristic variable of the power tool and / or construction robot, such as vibration, current, force, temperature, type, condition and / or position, distance traveled, and / or feed motion.

[0072] If a battery interface is available, the sensor signal can also be associated with the battery connected to the battery interface.

[0073] It is also possible that the sensor signal indicates the operating mode, and / or that the control unit sets the operating mode, particularly for power tools.

[0074] Therefore, for example, the behavior of the power tool can be adjusted depending on whether a battery or an interface adapter is installed. For example, the trigger can be set or ignored depending on the detected state. The wake-up mode can be triggered, for example. It is also possible to transmit and / or receive an identification code by the control unit.

[0075] If the interface adapter has at least one damping element to dampen vibrations acting on the interface adapter, the durability of the construction robot and / or the precision of the construction work that the construction robot can perform can be improved. The damping element can be configured to dampen passively and / or actively.

[0076] The interface adapter itself may have at least one sensor. The sensor may be, for example, a force sensor and / or a pressure sensor. The interface adapter can then be configured to measure contact force and / or tensile force, etc.

[0077] A system is also presented that includes a construction robot, an interface adapter of the types described above and / or below, and a power tool, the power tool having a standard battery interface, and the standard battery interface of the power tool being located at the connection point of the interface adapter.

[0078] Power tools may have one or more of the features of power tools described above. In particular, power tools may include protective devices.

[0079] The system may also include additional adapter components. Therefore, there may be adapter components specific to power tools and / or construction robots. These can be used to adapt power tools and / or construction robots to the interface adapter.

[0080] A power tool can be configured to detect whether a battery or interface adapter is installed in the standard battery interface, particularly via its standard battery interface. It can also be configured to detect whether any element is present in the standard battery interface, and if so, to detect what kind of element it is. Therefore, the power tool can be configured, for example, to utilize recovery when a battery is present and not utilize recovery when an interface adapter is present.

[0081] It is also possible to modify the power tool. Therefore, it is possible to replace the handle insertion part of the power tool with at least part of the interface adapter, or the interface adapter as a whole.

[0082] Construction robots can be designed to perform construction work on building construction sites and / or civil engineering sites and / or particularly on steel-based industrial plants, such as oil platforms. Construction robots can be configured to perform construction work on ceilings, walls, and / or floors. Construction robots can be designed for drilling, cutting, chiseling, grinding, and / or setting structural elements. Construction robots can have one or more power tools. Power tools can include cutting tools, grinding tools, and / or setting tools. End effectors and / or power tools may also be designed for marking. For example, an end effector may have a paint spraying device. Alternatively or additionally, measuring tools, such as distance meters, can also be mounted on the end effector.

[0083] The interface adapter can be mounted on the end effector. Power tools and / or measuring tools can then be mounted on the interface adapter. Construction robots, particularly end effectors, can, in principle, also include multiple power tools and / or measuring tools.

[0084] Construction robots may have manipulators. Manipulators can be designed as robotic arms. Manipulators may also have lifting devices. Lifting devices can increase the overall volume that the manipulator can reach. Manipulators may have at least three degrees of freedom. In particular, manipulators may have at least six degrees of freedom.

[0085] Construction robots may also have a mobile platform. The mobile platform may include a wheeled undercarriage and / or a tracked chain undercarriage. The mobile platform may have at least two degrees of freedom. The construction robot as a whole may have at least ten degrees of freedom. Alternatively, the mobile platform may be a flying platform or include a flying platform. For example, a construction robot could be designed as a flying drone.

[0086] Furthermore, construction robots may also be able to operate via interface adapters.

[0087] Furthermore, power tools may also be operable and / or deactivated via connection points.

[0088] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the invention and from the claims, with reference to the drawings illustrating essential details of the invention. The features shown herein should not necessarily be understood to be to scale, but rather shown in a manner that clearly illustrates the specific features of the present invention. Various features can be implemented individually or collectively in any combination in modifications of the invention.

[0089] Exemplary embodiments of the present invention are shown in the schematic diagrams and will be described in detail in the following description. [Brief explanation of the drawing]

[0090] [Figure 1] This shows power tools. [Figure 2] The interface adapter is shown in a side view. [Figure 3] A modified power tool with a power tool adapter is shown in a side view. [Figure 4] A perspective view shows a power tool being repaired. [Figure 5] A side view shows the modified power tool with the interface adapter installed. [Figure 6] A perspective view shows a partial internal diagram of an interface adapter with a control unit. [Figure 7] This shows a system including a construction robot, interface adapter, and power tools. [Figure 8] A simplified block diagram is shown. [Modes for carrying out the invention]

[0091] In the following description of the drawings, the understanding of the present invention is facilitated by using the same reference numerals for identical or functionally corresponding elements in all cases.

[0092] Figure 1 shows the power tool 10. The power tool 10 is a battery-powered masonry drill.

[0093] The power tool 10 has a base 12, from which a tool joint 14 protrudes. The other end has a handle 16. Located on the handle 16 is an actuation element 17 that can be used to manually control the power tool 10. In particular, the actuation element 17 can be used to start and stop drilling operations or to adjust the rotational speed.

[0094] The power tool 10 further has a standard battery interface 18. The standard battery interface 18 is designed to accept a battery. The standard battery interface 18 is useful, among other things, for securing the battery to the power tool 10, for transmitting operating energy between the battery and the power tool 10, and for transmitting signals between the battery and the power tool 10.

[0095] As an example, Figure 1 shows a battery 20 that is pushed almost halfway onto the standard battery interface 18 in the state shown in Figure 1.

[0096] To enable the battery 20 to be installed on the standard battery interface 18, the battery 20 has a connection point 22 that is designed to complement the standard battery interface 18.

[0097] To fully install the battery 20, it should be necessary to push it further into the standard battery interface 18 in the direction of arrow 24. Therefore, to completely remove it, it should be necessary to push the battery further away from the standard battery interface 18 in the opposite direction of arrow 24.

[0098] Therefore, it can be installed and removed without the use of tools.

[0099] Figure 2 shows an interface adapter 100 for connecting a power tool to the end effector of a construction robot.

[0100] The interface adapter has a power tool connection point 110 for connecting to a power tool, for example, the power tool 10 shown in Figure 1.

[0101] The power tool connection point 110 has a power tool connection section 112 that is designed to complement the standard battery interface 18 (see Figure 1). Therefore, the power tool connection point 110 as a whole is designed to complement the standard battery interface 18.

[0102] The power tool connection point 112 has electrical contacts 114. When the power tool 10 is attached to the power tool connection point 110, operating energy, particularly for the purpose of operating the power tool 10, can be transmitted through the contacts 114. For example, a current with a DC voltage of about 22V may be transmitted as operating energy.

[0103] Furthermore, by modulating the operating energy on which the signal is transmitted, the signal can also be transmitted bidirectionally from and to the power tool 10 via the contact 114. The contact 114, in conjunction with the rest of the power tool connection point 110, simultaneously forms a power tool signal interface 116 at this point.

[0104] The interface adapter 100 further has a construction robot connection point 118. This is useful for connecting to the end effector of a construction robot, for example, a construction robot which will be described in more detail below in relation to Figure 7.

[0105] To securely fasten the interface adapter 100 to the end effector, the construction robot connection point 118 has a pneumatically actuated bracket 120.

[0106] The power tool connection point 110 can be pressed onto the damping element 122 such that the damping element 122 is substantially located between the power tool connection point 110 and the construction robot connection point 118. The damping element is useful, for example, to dampen vibrations that may be generated from the power tool 10 while it is in operation.

[0107] Operating energy can be transmitted between the mounted construction robot and the interface adapter 100 via the electrical contact socket 124. For example, the operating energy can be transmitted in the form of a current with a voltage of 48V.

[0108] Modulation also makes it possible to transmit signals bidirectionally between the interface adapter 100 and the construction robot via the contact socket 124. The contact socket 124 works in conjunction with the rest of the construction robot connection point 118 to simultaneously form a construction robot signal interface 126 at this point.

[0109] Therefore, signals can be communicated between the power tool 10 and the construction robot via the power tool signal interface 116 and the construction robot signal interface 126.

[0110] The interface adapter 100 further includes a control unit 128.

[0111] The power tool connection point 110 is electrically connected to the rest of the interface adapter 100, particularly the control unit 128, via the connection lead wires 130.

[0112] Therefore, it is also possible to transmit operating energy between the construction robot and the power tool 10 via the power tool signal interface 116 and the construction robot signal interface 126.

[0113] Figure 3 shows a modified version of the power tool 10. Compared to the design in Figure 1, the handle 16 with the operating element 17 and the battery 20 have been removed.

[0114] The manually operable actuation element 17 is replaced here by a control connector 26 so that the control function of the actuation element 17 can be controlled electronically.

[0115] The power tool adapter part 28 is mounted on the power tool 10 in place of the handle 16.

[0116] The standard battery interface 18 is located in a pivot position outside the power tool adapter portion 28.

[0117] Figure 4 shows a perspective view of the power tool 10 during modification. In particular, in the subsequent steps corresponding to the diagram in Figure 4, it is possible to see the standard battery interface 18 pivoting approximately 90 degrees counterclockwise on the already installed power tool adapter portion 28.

[0118] It is also possible to see the mating contact 30, which is formed on the standard battery interface 18 and configured to establish electrical contact with the contact 114 (see Figure 2).

[0119] Figure 5 shows the modified power tool 10 according to Figure 3, with the interface adapter 100 according to Figure 2 installed on top of it.

[0120] For this purpose, the damping element 122 is mounted on the power tool adapter portion 28 and secured, for example, by screws.

[0121] The power tool connection point 110 is seated on the standard battery interface 18.

[0122] The control connector 26 is connected to the control connection socket 132 of the control unit 128.

[0123] Figure 6 shows a perspective view of the internal structure of the control unit 128.

[0124] The control unit 128 includes an electronic circuit 134, which in particular has a microcontroller 136. The microcontroller 136 has a microprocessor 138 and a memory 140. The memory 140 stores program code 142 that can be executed on the microprocessor 138.

[0125] The control unit 128 is configured, in particular, by program code 142, to convert signals received at one of the signal interfaces. Specifically, the control unit 128 is configured to convert a signal modulated to 48V DC, received at the robot signal interface 144, into a signal modulated to 22V DC, and output the said signal at the power tool signal interface 116. Thus, the control unit 128 also forms the signal converter 144.

[0126] The control unit 128 is further configured by program code 142 to query sensor signals 146 from vibration sensor 148. Furthermore, if at least one of the sensor signals 146 exceeds a threshold, it is configured to output a braking signal at the power tool signal interface 116 (Figure 2). Based on the braking signal, the power tool 10, designed as a masonry drill in this exemplary embodiment, can reduce its rotational speed, for example, to also reduce vibrations caused by the power tool.

[0127] Figure 7 shows system 200. System 200 includes a construction robot 210, an interface adapter 100, and a power tool 10.

[0128] Interface adapter 100 corresponds to the interface adapter 100 described with reference to Figures 2, 5, and 6.

[0129] The power tool 10 corresponds to the power tool 10 described with reference to Figures 1, 3, 4, and 5.

[0130] The construction robot 210 has a mobile platform 214 equipped with a track chain undercarriage 212. The manipulator 216 is positioned on the mobile platform 214. The manipulator 216 has a lift device 218 on which a multi-axis arm 220 is mounted. The lift device 218 can move the arm 220 vertically. The arm 220 has at least six degrees of freedom. Thus, the end effector 222 located at the working end of the arm 220 can be oriented both vertically and horizontally. Thus, the construction robot 210 can perform excavation work on ceilings, walls, and / or floors using a power tool 10 designed for construction work, particularly as a masonry drill.

[0131] The interface adapter 100 is located on the end effector 222. Its construction robot signal interface 126 (see Figure 2) is connected to the corresponding signal output of the construction robot 210.

[0132] In particular, the standard battery interface 18 of the power tool 10 (see Figure 2) is located on the power tool connection point 110 (see Figure 2) of the interface adapter 100.

[0133] Figure 8 shows a simplified block diagram of System 200. The diagram in Figure 8 is simplified and limited to the features described in detail below. Unless otherwise stated, the elements described in detail below correspond to the corresponding elements described above in each case.

[0134] The system 200 is shown to include a construction robot 210 and a power tool 10.

[0135] As described above, the power tool 10 is connected to the construction robot 10 via the interface adapter 100 and the battery interface 18.

[0136] The power tool 10 has a power tool control unit 32. The power tool control unit 32 includes a power tool microcontroller 34 and a power tool memory 36. The power tool memory 36 stores power tool program code 38 that can be executed on the power tool microcontroller 34. The program code 38 and the power tool microcontroller 34 are configured together to control the elements of the power tool 10.

[0137] In particular, the power tool control unit 32 is configured to control the motor 40 of the power tool. The motor 40 is configured to drive the tool coupling 14 (see Figure 1).

[0138] Data, particularly signal and operational data from the power tool 10, can be transmitted bidirectionally between the construction robot 10 and the power tool via the data interface 31. The data interface 31 is integrated into the battery interface 18.

[0139] In particular, as mentioned above, the power tool 10 can be remotely controlled by the construction robot 100. To do this, control signals can be transmitted from the construction robot control unit 224 of the construction robot 10 to the power tool control unit 32 via the interface adapter 100 and the data interface 31.

[0140] The power tool 10 has a protective device 42 for protecting the user when the power tool 10 is being used manually. The protective device 42 includes a sensor 44.

[0141] The protective device 42, in particular the sensor 44, is configured to detect blockage of a tool held in a tool joint and to notify the power tool microcontroller 34 of this blockage by an blockage signal.

[0142] According to the power tool program code 38, the power tool microcontroller 34 is in a manual operation mode that operates in a standard manner, thereby configuring it to decelerate and stop the motor 40 when it receives a cutoff signal.

[0143] However, the construction robot control unit 224 can send a stop signal to the power tool microcontroller 34 so that the power tool microcontroller 34 then switches to automatic operation mode according to the power tool program code 38. In this automatic operation mode, the power tool microcontroller 34 does not respond to any shut-off signals received from the protection device 42. Therefore, the protection device 42 can be shut down by remote control.

[0144] The construction robot control unit 224 can also switch the power tool microcontroller 34 back to manual operation mode via an activation signal. Thus, the protection device 42 can also be activated by remote control.

[0145] Here, the construction robot control unit 224 deactivates the protective device 42 before performing construction work, in this case before starting to drill into the stone, and then reactivates it. [Explanation of Symbols]

[0146] 10 Power tools 12 Base 14 Tool Fittings 16 handle 17 Operating elements 18 Battery Interface 20 Storage batteries 22 connection points 24 Arrows 26 Control Connectors 28 Adapter parts 30 mating contacts 31 Data Interfaces 32 Power Tool Control Units 34 Power Tool Microcontrollers 36 Power Tool Memory 38 Power Tool Program Codes 40 motors 42 Protective devices 44 sensors 100 Interface Adapters 110 Power tool connection points 112 Power tool connection part 114 contacts 116 Power Tool Signal Interface 118 Construction robot connection point 120 bracket 122 Damping elements 124 Contact Sockets 126 Construction robot signal interface 128 Control Unit 130 connecting lead wires 132 Control connection socket 134 circuits 136 Microcontrollers 138 microprocessors 140 memory 142 Program Code 144 Signal Converter 146 Sensor signals 148 Vibration Sensor 200 Systems 210 Construction robots 212 Truck Chain Undercarriage 214 Mobile Platforms 216 Manipulator 218 Lift Devices 220 Arm 222 End Effector 224 Construction robot control unit

Claims

1. A power tool (10), particularly a handheld power tool, comprising a motor (40) and a tool joint (14) for holding a tool, such as a drilling tool, a cutting tool, and / or a grinding tool, wherein the motor (40) is configured to drive the tool joint (14), The power tool (10) can be remotely controlled by electricity and / or wireless means. The power tool (10) has at least one protective device (42) for protecting the user when the power tool (10) is being used manually. The protective device (42) is characterized in that it can be stopped by remote control, and in particular can be activated and deactivated by remote control.

2. The power tool (10) has a data interface (31), and preferably the power tool (10) can be remotely controlled via the data interface (31), as described in claim 1.

3. The power tool according to claim 2, characterized in that the data interface (31) has a bidirectional design.

4. The power tool according to claim 1, characterized in that the protective device (42) is configured to reduce or stop vibration, working output, rotational frequency, speed, and / or torque.

5. The power tool according to claim 1, characterized in that the protective device (42) is configured to prevent the operation of the motor (40).

6. The power tool according to claim 1, characterized in that the protective device is deactivated, and in particular is deactivated and deactivated.

7. The power tool (40) is characterized by having a battery interface (18) for connecting a battery, as described in claim 1 or 2.

8. The power tool according to claim 7, referencing claim 2, characterized in that at least a portion of the data interface (31) is integrated with the battery interface (18).

9. A system (200) comprising a construction robot (210) and a power tool (10) as described in claim 1, wherein the power tool (10) is positioned on the construction robot (210), and the construction robot (210) is configured to activate and / or deactivate the protective device (42) of the power tool (10).

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