Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
  • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
  • H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
  • H02G1/1204—Hand-held tools
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
  • H01R43/042—Hand tools for crimping
  • H01R43/0421—Hand tools for crimping combined with other functions, e.g. cutting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
  • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
  • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
  • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
• • 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
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
  • G01L5/0061—Force sensors associated with industrial machines or actuators
  • G01L5/0076—Force sensors associated with manufacturing machines
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
  • H01R43/042—Hand tools for crimping
  • H01R43/0428—Power-driven hand crimping tools
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
  • H02G1/005—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for cutting cables or wires, or splicing

Definitions

• the invention relates to a tool set for cutting, stripping and/or crimping an electrical conductor according to the preamble of claim 1 .
• Such a tool set has a manual machine and at least one tool head.
• the hand-held device can be handled manually by a user and has a tool interface and an electric motor drive.
• the at least one tool head is designed to perform a function, can be connected to the hand-held device (1) via the tool interface (11) and can be driven in a connected position via the drive (12).
• preparing a conductor when wiring electrical circuits or assembling conductors involves the following steps: cutting conductors to length, stripping, and crimping.
• crimping means pressing the conductor with an electrical connector. It is known to use manually, electrically or pneumatically operated hand tools for these steps. In addition, electrically or pneumatically operated table-top devices and systems for fully automatic conductor assembly are also known.
• a good quality of the electrical connection created with a tool and good ergonomics of the tool are desirable.
• the tool should also be flexible in use. That means it should be usable, for example, for different cross-sections of conductors and electrical connectors. It should also provide high process security. That is, it should make it possible, for example, to maintain high quality cutting, stripping and crimping, regardless of the user's skills.
• the costs for the tool should be low and there should be as little waste as possible of consumables such as electrical conductors and electrical connectors.
• a short processing time per conductor and simple operation are desirable.
• Hand tools that are suitable for cutting and stripping are known from the prior art. Hand tools suitable for crimping are also known. Electrically driven hand tools, in which, as in DE 10 2013 107 217 A1, a manual drive is possibly supported by a motor drive, are also being used processes that require a lot of force or energy, such as cutting or crimping conductors with a large cross-section. Hand tools are also known which can be used for the three steps of cutting, stripping and crimping. Hand tools can be partially adapted for different applications with interchangeable tool heads.
• a crimping tool is known from DE 199 32 962 B4, in which the crimping quality is monitored via the crimping force. Errors can be detected by recording the force-displacement curve and comparing it with specified values that are determined by test crimping.
• the adjusting force must be estimated by the user for each function, or the same adjusting force is used for each function, which can, however, be associated with the risk that the functions are incorrectly executed.
• the object of the present invention is therefore to provide a tool set for cutting, stripping and crimping an electrical conductor with a hand-held device and at least one tool head, which offers high process reliability.
• the hand-held device has a force determiner for determining an adjustment force brought about by the drive on the at least one tool head connected to the hand-held device.
• the force determiner determines the adjusting force that is brought about by the drive on a tool head connected to the manual machine in each case means that process reliability can be increased, at least during cutting, stripping and crimping.
• process reliability can be increased, at least during cutting, stripping and crimping.
• other functions such as twisting or stripping the conductor, are also conceivable, for which the majority of the tool heads can be designed and when they are carried out by the manual machine, the process reliability is increased.
• a first tool head of a plurality of tool heads is designed to perform a first function.
• a second tool head of the plurality of tool heads is designed to perform a second function that differs from the first function.
• Each tool head is about the Tool interface can be connected to the manual machine and can be driven in a connected position via the drive.
• different tool heads which perform different functions and are therefore configured differently in terms of function, can be detachably connected to the manual machine via the tool interface.
• One tool head can be connected to the tool interface in each case in order to carry out a function assigned to the tool head.
• the tool head can be exchanged for a different tool head in order to operate the manual machine with a different tool head and thus perform a different function.
• a tool head can also be replaced by a tool pot of the same type, for example in the event of damage in order to replace the tool head for repairing the tool.
• the tool head can be exchanged and, for this purpose, is detachably connected to the manual machine via the tool interface.
• a first tool head is designed to carry out a cutting function, a second tool head to carry out a stripping function and a third tool head to carry out a crimping function.
• Another tool head may be configured to perform one or more of the following functions: cutting, stripping, twisting, stripping, and crimping a conductor.
• the additional tool head can be designed, for example, for cutting and twisting a conductor.
• the additional tool head can be designed for cutting, stripping, twisting, stripping and crimping a conductor. If necessary, a multiplicity of such further tool heads can be provided.
• the tool set can thus be used flexibly for several work steps, different electrical connectors and different electrical conductors.
• Crimping the conductor may include crimping the conductor with an electrical connector.
• an electrical connector may include a ferrule, twisted contact, spade, B-crimp, or other electrical contact.
• the electrical conductor can be a core of a cable.
• the electrical conductor can have a plurality of strands.
• Each tool head of the plurality of tool heads can be connected to the manual machine via the tool interface. Each tool head can therefore be attached to the tool interface.
• the tool interface can, in particular, have a snap or twist lock, with which the tool head can be fixed to the manual machine.
• the at least one tool head has a driver.
• the driver can be designed to move the tool head to perform a function.
• the drive can have a piston for transmitting the adjusting force.
• the driver can be coupled to the piston to transmit the adjustment force.
• the automatic device can obtain energy for operating the electromotive drive from an energy store, for example a rechargeable battery or a battery.
• the hand-held device is battery-powered.
• the drive can generate the adjustment force using energy from the energy store and transfer it to the tool head via a gear.
• the drive can have a spindle drive.
• the spindle drive can convert a rotary drive movement of a motor of the drive into a linear movement.
• the linear movement can be transmitted via the spindle drive, for example to a piston that can move back and forth.
• the tool head in particular the driver of the tool head, can be coupled to the piston, so that the adjusting force is transmitted to the tool head via the piston.
• the compact design of the manual machine can support a low weight of the manual machine.
• the drive can be controllable with a control unit.
• the control unit can have a circuit board, for example, which is arranged inside the manual machine.
• the control unit can be coupled to the force determiner, so that the force determiner can transmit the adjustment force determined to the control unit, for example for evaluation and/or for recording.
• the control unit can also be coupled to the drive, so that the control unit can control the drive, for example, depending on the user's needs.
• the user can press a button that triggers a work process. Within a work process, the piston can move back and forth once. A length of the adjustment path and a maximum adjustment force exerted can be adapted to the respective application by regulating the motor current.
• the control unit can be set up to regulate the motor current.
• the mechanism in the tool heads therefore does not necessarily have to be designed in such a way that all tool heads of a plurality of tool heads work with the same maximum force.
• the handheld device has a recognition device for recognizing the respectively connected tool head.
• the detection device can be set up to detect the connected tool head. This can lead to one being tool heads of different types or tool heads for performing different functions. The manual machine can therefore recognize which tool head is currently being used.
• the detection device is set up to detect the connected tool head via a mechanical, magnetic, electrical and/or optical signal.
• a mechanical signal can be generated, for example, via a mechanical coding of the tool heads, for example via pins, the presence of which can be queried via a button or sensors on the hand-held device.
• An electrical signal can be generated, for example, by an inductive or capacitive sensor or a reed contact.
• a magnetic signal can be generated, for example, via a magnet arranged on the tool head, the magnetic field strength of which can be measured with a Hall sensor arranged on the manual machine.
• An optical signal can be generated, for example, via a light barrier, which the tool head interrupts in a predetermined manner.
• Optical recognition can also be made possible by optically reading out information about the tool head.
• the tool head can be recognized by the recognition device based on its shape or based on a barcode or binary code arranged on the tool head.
• the recognition device based on its shape or based on a barcode or binary code arranged on the tool head.
• no additional electronics are required in the tool head for detecting the tool head.
• the detection device can also be in the form of an RFID reader, for example, in order to read an RFID identifier (so-called tag) of the at least one tool head.
• additional electronics are arranged on the tool head, which enable the tool head to be recognized by the recognition device.
• the tool head can be recognized wirelessly via RFID or NFC.
• the tool head can also be detected via a direct electrical connection or by cable.
• an electrical signal can be transmitted via physical structures between the tool head and the manual machine.
• the tool head can be detected via an electrical contact, such as a wire contact.
• the control unit can be coupled to the detection device. Information about the detected tool head can be transmitted from the detection device to the control unit.
• the control unit can be set up to already using the recognized tool head to predict an adjusting force for executing a function with the recognized tool head.
• the control unit can provide reference values or a reference curve for the adjustment force for executing a function with the recognized tool head.
• control unit specifies parameters such as the adjusting force.
• the adjustment force can be specified by the control unit, for example, by specifying the motor current with which the electromotive drive is driven.
• the control unit can also specify a speed for the drive.
• the speed of the drive can be determined via a rotary encoder. In particular, the rotary encoder can determine a speed of the piston.
• the speed can be determined by counting the steps.
• the control unit can also specify a torque of the drive.
• the adjustment force can be specified via the torque of the drive.
• the control unit can alternatively or additionally specify an adjustment path along which the tool head can be adjusted when executing the respective function.
• the adjustment path can specify a series of adjustment positions along which the tool head can be adjusted when performing the respective function.
• the control unit can specify the adjustment force, the speed of the drive, the torque of the drive and/or the adjustment path along which the tool head can be adjusted when executing the respective function, depending on the connected tool head.
• control unit can specify a different adjustment path for the first tool head for performing the first function than for the second tool head for performing the second function.
• the automatic device can therefore be set up to suitably regulate parameters such as motor speed, motor torque, the adjustment force to be introduced into the tool head and/or the adjustment path, depending on the connected tool head.
• the automatic device has a path determiner for determining an adjustment position on the adjustment path.
• the adjustment position can be a current position of the tool head, in which the tool head is when performing the respective function.
• the adjustment position can be an opening angle of a mouth of the tool head, into which the conductor can be inserted.
• the manual machine can be set up to determine the displacement force and the displacement position while executing a function Editing, for example for cutting, to determine an electrical conductor.
• the automatic device can be set up to record the adjustment force and the adjustment path.
• the control unit can have a memory device in which the adjustment force and the adjustment path and in particular pairs of values from the adjustment position and the adjustment force can be stored.
• control unit is set up to compare pairs of values from adjustment position and adjustment force with reference values and/or an adjustment path/adjustment force curve with at least one reference curve in order to monitor the correct execution of the respective function.
• the comparison of the pairs of values with reference values and/or the adjustment path/adjustment force curve with at least one reference curve can include the calculation of a difference in each case from the reference values and/or the at least one reference curve.
• Monitoring the correct execution of the respective function can in each case include evaluating the magnitude of a difference from the reference values and/or the at least one reference curve.
• the displacement force cannot be rapid compared to a displacement force/displacement curve typical of the connected tool head, in particular a reference curve rise enough.
• a possible error can then be that a conductor with a cross-section that is too small for the connected tool head is inserted into the connector.
• stranded wires may be missing from the conductor, for example, or some of the stranded wires of a wire may not be inserted into the connector.
• the adjusting force can be very fast after initial contact of the tool head with an electrical connector to be pressed with the conductor or during the deformation of the electrical connector compared to the adjusting force-adjusting path curve typical of the connected tool head, in particular a reference curve increase so that the maximum force is already reached after an adjustment path that is too short. It can then be an error that an incorrect or unsuitable connector was used. For example, a material that is too hard may have been used for a ferrule. Likewise, an incorrect conductor may have been inserted into the connector. For example, the conductor can have a cross section that is too large for the connector.
• the hand-held device can be set up to indicate to the user of the hand-held device errors that result from a deviation in the pairs of values and/or the adjustment force-adjustment path curve.
• the automatic device has a quality indicator that is set up to display a message if the pairs of values deviate from the reference values and/or the adjustment path/adjustment force curve from the at least one reference curve by more than a predefined difference.
• the indication can consist, for example, in the fact that an LED of the quality indicator lights up.
• the quality indicator can also include a display on which the deviation is shown.
• the quality indicator can also inform the user of the deviation with an acoustic signal or a vibration.
• control unit is coupled to the detection device in order to specify the reference values and/or the at least one reference curve as a function of the connected tool head.
• the control unit can provide reference values and/or at least one reference curve for each tool head. Depending on the connected tool head, the control unit can therefore provide the appropriate reference values and/or envelope curves resulting from at least two reference curves for monitoring the execution of a function with the connected tool head.
• the hand-held device and/or the at least one tool head has a storage device in which the reference values and/or the at least one reference curve for the respective tool head are stored.
• the reference values and/or the at least one reference curve can be stored in the storage device of the control unit, assigned to an identification of the tool head, which the control unit can receive from the recognition device be.
• the at least one tool head can have a further memory device in which an identification of the tool head can be stored.
• the identification of the tool head can include identification data such as an identification number.
• the reference values and/or the at least one reference curve for the respective tool head can also be stored in the further memory device.
• the tool heads can be used independently of the manual machine in which the reference values and/or the at least one reference curve for the respective tool head is stored.
• the tool heads can be used on another manual machine that provides monitoring of the correct execution of the respective function.
• the reference values and/or the at least one reference curve can define a permitted range on a plane that is spanned by possible values of the adjustment force and the adjustment position.
• the permitted range is selected by defining the reference values and/or the at least one reference curve in such a way that compliance with a required quality is ensured when the measured displacement force and the measured displacement position are within the permitted range during the processing of the conductor.
• the reference values and/or the at least one reference curve can be specified at the factory, for example.
• the control unit is set up to generate further reference values from the pairs of values from adjustment position and adjustment force or at least one additional reference curve from the adjustment path/adjustment force curve and, in addition to the reference values already stored and/or the at least one reference curve already stored, in the save storage device.
• further reference values and/or reference curves can be stored by the user. Measured pairs of values and/or measured adjustment path/adjustment force curves can therefore be converted into reference values and/or reference curves in order to generate templates for executing functions for the tool head.
• the control unit can be set up to specify an adjustment path. On the one hand, this can happen depending on the connected tool head. On the other hand, this can also take place as a function of a function selected by a user.
• a tool head can be designed to cut a conductor. The same tool head can also be used to strip a wire if the The adjustment path is shortened so that only one insulation, but not the conductor, is completely cut.
• the control unit is set up to specify a shortened adjustment path in such a way that, with a tool head connected to the manual machine for performing a stripping function, a conductor can only be partially stripped by specifying an adjustment path, so that a section of an insulating sheath of the conductor that is severed when the insulation is stripped remains on the conductor.
• the adjustment path along a longitudinal axis of the conductor is shortened by the control unit.
• the severed section can be used, for example, to twist the conductor or to protect the conductor.
• the hand-held device can thus be set to a desired application in an uncomplicated manner or automatically set itself to the desired application.
• the hand-held device has a data interface via which a computer device can be coupled to the hand-held device for the transmission of data between the computer device and the hand-held device.
• the data interface can include connections via USB, WiFi or Bluetooth, for example.
• the control unit can exchange data with the computer device via the data interface.
• Data such as identification data from tool heads used, recorded value pairs from the adjustment force and the adjustment position on an adjustment path, reference values, recorded adjustment path-adjustment force curves and/or reference curves can be transmitted to or from the computer device via the data interface.
• the data mentioned can therefore be transmitted from the computer device to the control unit and from the control unit to the computer device.
• the control unit can be set up to transmit data stored in the memory device to the computer device.
• the computing device can be, for example, a computer or a mobile device such as a smartphone or a tablet.
• the control unit can be set up in particular to transmit pairs of values recorded for a connected tool head and/or recorded displacement travel/displacement force curves with, if necessary, associated reference values and/or reference curves via the data interface to the computer device for evaluation with software or an app.
• the further reference values and/or the at least one further reference curve can be transmitted via the data interface for storage in the storage device.
• the computer device can make further reference values and/or at least one further reference curve accessible to the handheld device via the data interface.
• the further reference values and/or the at least one further reference curve can have been recorded, created or calculated, for example, with another manual device and/or at an earlier point in time.
• the data received from the computer device can additionally or alternatively be stored in the further memory device of the tool head. Likewise, data can be transmitted from the additional storage device of the tool head to the computer device via the data interface.
• Information relating to a number of cycles for work processes carried out overall with a tool head or the automatic device can also be transmitted via the data interface. Based on the number of cycles, conclusions can be drawn about possible wear in order to generate a warning about wear or a maintenance interval, if necessary.
• the handheld device and/or the plurality of tool heads each have a memory device in which information about wear and tear of the plurality of tool heads and/or a number of times can be stored, which indicates how often a function is performed with the plurality of tool heads was executed.
• the number of times can be used, for example, to avoid overloading the automatic device due to too many executions of a function. This can be important in particular when the hand-held device is used on a mobile basis and increases process reliability.
• the control device can be set up to specify parameters such as an adjustment path/adjustment force curve depending on the wear of the connected tool head. It can thus be ensured that a tool head that requires a higher adjusting force simply because of wear does not generate any erroneous indications of a deviation of the pairs of values or the adjusting path-adjusting force curve from reference values or the at least one reference curve.
• a user of the automatic device can be informed of the need for maintenance of the connected tool head due to the wear.
• the wear may scale with the number of times the particular tool head has performed a function. Therefore, the number of times in the memory device of the manual machine or the others Storage device of the tool head can be stored. The number of times may include, for example, a number of (machining) cycles performed by the tool head or a number of conductors processed. If necessary, more specific information about the wear of the tool head can also be stored.
• Wear of the tool head can cause increased friction in performing the function of the tool head.
• the increased friction can necessitate a higher adjusting force.
• the control unit controls the drive depending on the wear and/or the number of times.
• the increased adjusting force due to the wear can be compensated for by the control depending on the wear and/or the number of times.
• the number of times can be determined by counting the number of times a function is executed.
• the friction can be determined, for example, by homing the tool head without a conductor being inserted.
• a method for calibrating a manual machine can be used for this purpose.
• the handheld device has an illumination device that is provided for illuminating the connected tool head.
• the lighting device can be, for example, an LED that is directed towards the connected tool head. This can make it easier to process a conductor placed in the tool head in poor light conditions.
• the hand-held device can be handled manually by a user.
• the manual machine has a tool interface and an electric motor drive.
• a tool head is connected to the manual robot via the tool interface and is driven in a connected position via the drive.
• the tool head is adjusted along an adjustment path, preferably without an electrical conductor being arranged on the tool head, and an adjustment force for adjusting the tool head along the adjustment path is determined.
• Adjusting the tool head along the adjustment path without a ladder inserted can include the reference run to calibrate the tool head.
• the adjustment force along the adjustment path can be an initial base value without a conductor being inserted. With increasing wear of the tool head, additional friction can occur Adjusting force undesirably increased. The adjusting force can then be above the base value even when adjusting without a ladder being inserted. With the calibration described, the base value can be increased by the increased adjustment force determined. It can thus be ensured that the adjustment force that is necessary for processing the conductor can be precisely determined.
• FIG. 1 is a view of an electrical conductor and a manual machine to which a tool head is connected;
• Fig. 2 is a schematic view of a manual terminal connected to a computing device
• FIG. 3 is a perspective view of a manual machine
• FIG. 4A-D views of tool heads with different functions
• FIG. 8 shows the schematic view of the automatic device according to FIG. 7, together with a tool head.
• the manual machine 1 shows a view of a manual machine 1 with an electric motor drive 12.
• the manual machine 1 has a tool interface 11 on which a tool head 2 is arranged.
• the tool head 2 can be driven via the electric motor drive 12 .
• the hand-held device 1 is held in one hand H by a user. In the view shown, the hand H of the user grips a housing 10 of the hand-held device 1 .
• the housing 10 is ergonomically adapted to the hand H for better handling.
• the manual machine 1 is part of a tool set for cutting, stripping and crimping an electrical conductor L.
• the conductor L is a in the illustrated embodiment Cable with a jacket M.
• the jacket M encases three cores, each of which is encased with an insulation I.
• the tool set can include at least one manual device 1 .
• the tool set includes a large number of manual machines 1, which can differ, for example, in terms of the strength of the electric motor drive 12.
• the tool set preferably includes a plurality of different or possibly also the same tool heads. With the tool head 2 shown in the view, the cores of the conductor L have been stripped so that three electrical contacts E are exposed. The contacts E are not covered by the insulation I.
• the tool head 2 which is connected to the manual machine 1, is therefore designed for stripping.
• the tool head 2 can also be designed for cutting the conductor L.
• the tool head 2 can be designed for twisting the conductor L, in particular the contacts E, in particular stranded wires of the wires.
• the tool head 2 can be designed for stripping the conductor L, in particular the cable. The sheath M of the cable can then be removed with the tool head 2 .
• the manual machine 1 has a force determiner 13 for determining an adjusting force caused by the drive 12 on the tool head 2 connected to the manual machine 1 .
• the force determiner 13 can therefore be used to determine the adjustment force that the drive 12 causes on the tool head 2 .
• a force acting on the conductor L which acts on the conductor L within the scope of performing the function for which the tool head 2 is designed, can be determined.
• the force gauge 13 would register an increase in force when the tool head 2 cuts the strands, so that a user of the tool set can be warned.
• FIG. 2 shows a schematic view of a manual machine 1.
• the tool head 2 of the manual machine 1 is shown only schematically and is aligned with an electrical conductor L that is to be machined with the tool head 2.
• FIG. The tool head 2 is connected to the manual machine 1 via a tool interface 11 .
• the tool interface 11 can have a snap or twist lock.
• the tool head 2 is connected via the tool interface 11 to an electric motor drive 12 which is arranged on the manual machine 1 .
• the drive 12 includes a motor 121 which drives the tool head 2 via a transmission 122 .
• the motor 121 can be an electric motor, for example.
• the motor 121 can, for example, drive a spindle via the gear 122, which converts a rotational movement of the motor 121 into a linear movement, with which the tool head 2 can be adjusted.
• the tool head 2 can thus be driven by a stroke generated by the motor 121 .
• the tool head 2 has a driver 22 which interacts with the drive 12 of the automatic device 1 in order to adjust the tool head 2 .
• the drive 12 can have a piston 124 with which the driver 22 can be coupled in order to transmit the adjusting force.
• the piston 124 can be moved back and forth with the spindle drive, for example.
• the manual machine 1 also has a detection device 15 for detecting the tool head 2 .
• the detection device 15 is arranged at the tool interface 11 so that a mechanical detection of the tool head 2 is made possible.
• the tool head 2 can interact mechanically with the manual machine 1 so that the manual machine 1 recognizes the tool head 2 .
• the tool head 2 is identified by mechanical coding.
• the detection device 15 is set up to detect the connected tool head 2 via an electrical signal.
• the detection can take place via a direct electrical connection, such as a plug-in connection.
• the detection device 15 can be set up to detect the tool head 2 optically, for example by the detection device 15 reading a barcode on the connected tool head 2 .
• the tool head 2 can exchange data with the manual machine 1 wirelessly or by cable.
• the data can include identification data for identifying the tool head 2, so that the identification device 15 can already identify the tool head 2 on the basis of the identification data. Additionally or alternatively, a number of times a function of the tool head 2 has been executed can also be read out and/or stored in the tool head 2 via the data exchange.
• the manual machine 1 includes a storage device 160 in which, for example, identification data for the tool head 2 can be stored. Additionally or alternatively, a number of executed functions of the tool head 2 can be stored with the identification data in the storage device 160 .
• the tool head 2 includes a further memory device 21 in which an identification of the tool head 2 and optionally a number of executed functions of the tool head 2 can be stored. For example, a number of cutting processes or stripping processes that have been carried out for a tool head 2 can be stored in the storage devices 21 , 160 .
• data such as the number of functions performed are stored in the memory device 160 of the automatic device 1, they can be transmitted to the further memory device 21 of the tool head 2.
• this makes it possible to recognize the further manual machine 1 how often a function of the tool head 2 has been carried out. This can result in wear of the tool head 2 or other use-specific parameters for the tool head 2, for example.
• An energy store 18 is also provided on the hand-held device 1 and makes an energy source available for the drive 12 .
• the drive 12 and the energy store 18 are arranged in a housing 10 .
• the housing 10 can be designed in the form of a handle.
• the automatic device 1 includes a control unit 16.
• the drive 12 can be controlled with the control unit 16.
• the control unit 16 can be set up to regulate a speed of the drive 12, in particular a motor speed, and a torque that the drive 12 exerts on the connected tool head 2, in particular a motor torque.
• Two actuating devices 17 are provided on the manual machine 1 which can be actuated by a user of the manual machine 1 .
• the actuating devices 17 are in the form of pushbuttons or buttons. By actuating one of the actuating devices 17, a user can signal to the control unit 16 that the drive 12 should be started or stopped. Simple actuation with the actuation device 17 allows a user to work ergonomically. Because high operating forces can be avoided.
• control unit 16 is connected to the energy store 18 .
• the control unit 16 reads a state of charge of the energy store 18 .
• An energy indicator 104 is provided on the hand-held device 1 and can indicate a charging status of the energy store 18 to a user of the hand-held device 1 .
• the energy indicator 104 can show the user a low state of charge of the energy store 18 when the energy store 18 needs to be replaced.
• the control unit 16 is coupled to the detection device 15 . In the present case, the recognition device 15 transmits an identification of the tool head 2 to the control unit 16.
• the control unit 16 compares the transmitted identification with a list of stored identifications of tool heads that are stored in the storage device 160, so that in connection with the identification of the tool head 2 stored Parameters of the tool head 2 can be called up. For example, depending on the tool head 2 connected, the control unit 16 can specify the speed of the drive 12, in particular a motor speed, and/or a torque of the drive 12, in particular a motor torque.
• control unit 16 can also specify an adjusting force that the tool head 2 exerts on the conductor L when the electrical conductor L is being machined.
• the adjusting force can be regulated, for example, via the current that is fed to the drive 12 via the energy store 18 .
• the adjusting force can be regulated via a motor current.
• the manual machine 1 also has a path determiner 14 which is used to determine an adjustment position of the tool head 2 .
• the adjustment position is on an adjustment path along which the tool head 2 can be adjusted when performing the respective function.
• the adjustment path can be, for example, a path that the blades 20a of the tool head 2 have to cover to cut through the conductor L.
• the control unit 16 is designed to specify an adjustment path along which the tool head 2 can be adjusted in order to carry out the respective function, for example in order to enable a wire to be stripped without damaging strands of the wire. This can be particularly important if wires of different diameters are to be stripped with one tool head. For cores with a larger diameter, the adjustment path is less than for cores with a smaller diameter. Accordingly, different tool heads can be designed to process conductors L with different diameters.
• the control unit 16 is set up to specify the adjustment path as a function of a diameter of the electrical conductor L and/or as a function of the tool head 2 used. Of course, the control unit 16 can also be set up to specify the adjustment position as a function of the tool head 2 connected.
• the control unit 16 can carry out an evaluation to the effect that the correct function of the tool head 2 is monitored. If, for example, a conductor L is to be processed with a tool head 2 that is not suitable for processing this conductor L, the adjustment force and displacement position can deviate from reference values for this conductor L in connection with the tool head 2 connected.
• the control unit 16 is therefore set up to compare pairs of values from the adjustment position and adjustment force with reference values. This enables it to monitor the correct execution of the respective function.
• the reference values or also a reference curve R can be transmitted to the automatic device 1 by a computer device S.
• the manual automat 1 has a data interface 19 via which the computer device S is coupled to the manual automat 1 .
• the data interface 19 includes a USB-C interface.
• the automatic device 1 is set up to receive reference values from the computer device S, in particular for a connected and identified tool head, and to store them in the memory device 160 .
• the reference values or a reference curve R can also be obtained by processing a conductor L with the tool head 2 specified by the identification data.
• the reference curve R can include a series of reference values.
• Reference values and/or reference curves R generated with the manual machine 1 can be transmitted to the computer device S via the data interface 19 .
• a reference curve R can also be generated by recording an adjustment path/adjustment force curve K when processing a conductor L and subsequently evaluating the quality of the processing of the conductor L. If the quality of the processing of the conductor L has been rated as good, a reference curve R can be generated from the recorded adjustment path/adjustment force curve K.
• An envelope curve or an enveloping band can be generated from at least two reference curves R, within which the adjustment path/adjustment force curve K should be arranged when a function is later executed. On the one hand, this can make it possible to carry out the execution using the reference values or the reference curve R to monitor the function. On the other hand, it can also be possible to identify the function being performed or features of the electrical conductor L, such as a cross section of the conductor L, for example, when the function is being carried out based on the course of the adjustment force over the adjustment path.
• a quality indicator 103 for the quality of the processing of the conductor L is provided on the automatic device 1 .
• the quality indicator 103 can signal a user when the pairs of values deviate from the reference values by more than a predetermined difference.
• the quality indicator 103 can signal a deviation to the user via a red LED light.
• a status indicator 102 for the status of the machine is provided on the manual machine 1, which can indicate to the user, for example, that the manual machine 1 is ready for operation.
• An illumination device 101 which illuminates the tool head 2 is also provided on the automatic device 1 .
• the lighting device 101 is arranged on the housing 10 of the manual machine 1 on the side of the tool head 2, so that a machining area in which the conductor L can be arranged on the tool head 2 is illuminated.
• FIG. 3 shows an exemplary representation of a manual machine 1 in a partially cutaway view.
• the automatic device 1 has a drive 12 which includes a motor 121 , a gear 122 and a spindle 123 .
• the spindle 123 is coupled to a piston 124 (which is in threaded engagement with the spindle 123 in the manner of a spindle nut) to which the tool head 2 can be coupled via a tool interface 11 .
• a rotation generated by the motor 121 can be converted into a linear movement by the spindle 123 .
• An extent of the linear movement, a stroke determines the adjustment path of a tool head 2 to be coupled.
• a force used to generate the linear movement of the piston 124, an adjusting force can be determined by a force determiner 13 provided on the automatic device 1.
• the force determiner 13 is coupled to the motor 121, for example, so that the adjusting force can be determined via the motor current.
• the force determiner 13 can also include a force sensor, eg a strain gauge, DMS. It is also conceivable and possible for the force determiner 13 to include a spring assembly that controls the adjusting force picks up. The adjustment force can then be determined by measuring the deflection of the spring assembly.
• An energy storage device 18 is also arranged on the automatic device 1 .
• the energy store 18 is arranged parallel to the drive 12 .
• a space-saving arrangement of the energy store 18 and the drive 12 can thereby be made possible.
• this arrangement of the energy store 18 parallel to the drive 12 makes it possible in a simple manner for the automatic device 1 to be in the form of a handle.
• a section of the manual machine 1 on which the energy store 18 is arranged can be provided to be arranged on a region of the ring finger of a hand of a user of the manual machine 1 . When used as intended, the tool head 2 protrudes from an area of the automatic device 1 that borders on the thumb area of the user's hand.
• An actuating device 17 is also provided on the manual machine 1 .
• the actuating device 17 can be operated by the user's index finger.
• the actuating device 17 is arranged between the area in which the energy store 18 is arranged and the tool head 2 .
• the automatic device 1 also includes a control unit 16 which is coupled to the drive 12 and the actuating device 17 so that actuation of the actuating device 17 can trigger the drive 12 . Furthermore, the control unit 16 is coupled to the force determiner 13 so that the values of the adjustment force determined by the force determiner 13 can be recorded by the control unit 16 .
• Fig. 4A to Fig. 4D show views of different tool heads, each designed to perform different functions.
• a first tool head 2a shown in Fig. 4A is designed to perform a cutting function.
• the first tool head 2a comprises two opposing blades 20a, between which a conductor L to be cut can be inserted.
• the blades 20a can be adjusted towards one another along an adjustment path, so that the conductor L is cut through when the blades 20a meet.
• a second tool head 2b shown in Fig. 4B is designed to perform a stripping function.
• a third tool head 2c shown in FIG. 4C is designed to perform a crimping function.
• the third tool head 2c comprises two opposing plates 20c for crimping, between which a conductor L to be crimped can be inserted.
• the plates 20c can be adjusted towards one another along an adjustment path, so that an electrical connector, for example a ferrule placed on the conductor L, is pressed with the conductor L when the plates 20c approach one another.
• a fourth tool head 2d shown in Figure 4D is also configured to perform a crimping function.
• the fourth tool head 2d comprises four mandrels 20d aligned to a common center, between which a conductor L to be crimped can be inserted.
• the mandrels 20d can be adjusted towards the common center along an adjustment path, so that a connector which can be arranged on the conductor L centered on the common center can be pressed with the conductor L by the approaching mandrels 20d.
• FIG. 5 shows an exemplary adjustment path/adjustment force curve K, which was measured when a tool head 2 performed a crimping function.
• An adjustment force of the tool head 2 is plotted on the y-axis over an adjustment path of the tool head 2 on the x-axis.
• the adjustment range is between an adjustment position of 0 mm and an adjustment position of 2.4 mm.
• an adjustment path of any length is conceivable and possible.
• the adjustment force is between zero and 3000 N. In principle, of course, an adjustment force of any magnitude is conceivable and possible.
• a connector which is arranged on a conductor L, is initially deformed when the tool head 2 is adjusted.
• the deformation of the connector requires relatively little force.
• the force used to deform the connector is less than 400 N.
• the rise in the force profile is therefore relatively small.
• the adjustment path is measured here, starting from an adjustment position in which the tool head 2 is maximally open, to a maximally closed adjustment position in which the connector on the conductor L is compressed.
• the adjustment force increases flatly linearly over the adjustment path.
• the connector is pressed into a predetermined shape such as a rectangular shape in the second curve portion K2, and also the conductor L itself is deformed.
• Deforming the conductor L can include, for example, bringing strands of the conductor L together and laying them next to one another.
• the adjustment force applied in the second curve section K2 is less than 1000 N.
• a third curve section K3 the conductor L itself is pressed.
• the pressing of the conductor L itself can include, for example, deforming the strands of the conductor L.
• the adjustment force increases more in the third curve section K3 than in the second curve section K2.
• the increase in third curve section K3 is also linear.
• the adjustment force used in the third curve section K3 is less than 2500 N.
• Parameters such as the length of the adjustment path, over which the adjustment force increases approximately linearly, and/or the maximum adjustment forces to be applied in each curve section K1, K2, K3 enable monitoring of the correct use of the automatic device 1.
• the correct use of the automatic device 1 can be monitored using reference curves R, for example, as shown in FIG. 6 . It shows three example adjustment path/adjustment force curves K, which were measured when a tool head 2 performed a function. An adjustment force of the tool head 2 in netwon is plotted on the y-axis over an adjustment path of the tool head 2 on the x-axis in millimeters.
• two reference curves R represented by dashed lines are shown.
• the reference curves R form an envelope that defines a permitted range of pairs of values from adjustment force and adjustment path that can occur when processing a given conductor L with the tool head 2 connected to the hand-held device 1 . Pairs of values outside the permitted range can indicate errors in handling or processing, such as a worn tool head 2, an unsuitable conductor L or an unsuitable tool head 2.
• the displacement displacement/displacement force curves initially do not increase with a small displacement displacement.
• the adjusting force is almost zero in this area.
• the adjustment force then increases very steeply over a short adjustment path and is then almost constant over a somewhat longer section of an adjustment path for the three adjustment path-adjustment force curves.
• the adjustment force for the three adjustment path-adjustment force curves increases steeply but linearly over the adjustment path.
• One of the three displacement path/displacement force curves rises more steeply than the other displacement path/displacement force curves. It intersects one of the reference curves R and thus contains pairs of values that lie outside the permitted range.
• the control unit 16 can determine such a deviation of the pairs of values from the reference values and, in response to the fact that the difference has exceeded a predetermined value, inform the user of the manual automat 1 via the quality indicator 103 that there may be an error.
• 7 and 8 show schematic views of an exemplary embodiment of a manual automat 1, which is designed in the manner of the manual automat 1 shown in FIG. 3 in an exemplary embodiment.
• the automatic device 1 has a housing 10 in which a drive 12, consisting of a motor 121 and a gear 122, is arranged. Via the motor 121 and the gear 122, a spindle 123 can be rotated, which is coupled to a piston 124 designed in the manner of a spindle nut, with which a tool interface 11 for (detachable) connection to a tool head 2 is connected.
• a drive 12 consisting of a motor 121 and a gear 122
• a spindle 123 Via the motor 121 and the gear 122, a spindle 123 can be rotated, which is coupled to a piston 124 designed in the manner of a spindle nut, with which a tool interface 11 for (detachable) connection to a tool head 2 is connected.
• the piston 124 By driving the spindle 123, the piston 124 can be moved linearly along the spindle 123 and the tool head 2 can be actuated via it in order to carry out a function assigned to the tool head 2, for example for stripping an electrical conductor or for crimping.
• a force determiner 13 can be arranged, for example, between the drive train of the drive 12 and the housing 10 in order to absorb a force effect between the drive 12 and the housing 10 and to derive a force effect on the tool interface 11 and thus on the tool head 2.
• the force determiner 13 can have a spring assembly, for example, so that the drive 12 can be elastically adjusted axially along the direction in which the spindle 123 extends relative to the housing 10, with a change in the position of the drive 12 relative to the housing 10 being able to be detected optically or mechanically, for example.
• an active section 130 can be connected to the drive 12 and interacts with a sensor device 131 on the housing 10 .
• the sensor device 131 can be designed, for example, as an optical sensor device, which is designed to determine a distance from the active section 130 and thus to detect a change in the position of the drive 12 relative to the housing 10 .
• the sensor devices 31 can be designed, for example, as a microswitch, which interacts with the active section 130 in order to detect a change in the position of the drive 12 .
• a force measurement in the drive train and thus on the tool head 2 is also possible in other ways, for example using a strain gauge or a piezo element, by evaluating the motor current of the motor 121 or using a torque sensor.
• a torque on the spindle 23 can be detected be, for example by using a force sensor, for example in the form of a piezo element, which detects a torque load between the drive 12 and the housing 10.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Analytical Chemistry (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Manufacturing Of Electrical Connectors (AREA)
• Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
• Numerical Control (AREA)
• Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
• Shearing Machines (AREA)
• Knives (AREA)
• Portable Power Tools In General (AREA)
• Details Of Cutting Devices (AREA)
• Manipulator (AREA)

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• 2020
  • 2020-10-09 BE BE20205701A patent/BE1028682B1/de active IP Right Grant
• 2021
  • 2021-09-17 JP JP2023521677A patent/JP2023549306A/ja active Pending
  • 2021-09-17 EP EP21782655.1A patent/EP4226471A1/de active Pending
  • 2021-09-17 AU AU2021357436A patent/AU2021357436B2/en active Active
  • 2021-09-17 US US18/247,904 patent/US20230387639A1/en active Pending
  • 2021-09-17 CA CA3195184A patent/CA3195184A1/en active Pending
  • 2021-09-17 CN CN202180069051.8A patent/CN116349098A/zh active Pending
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