Intelligent identification device for handheld electric tool with replaceable working head

Abstract

The utility model relates to an intelligent identification device for a handheld electric tool with a replaceable working head, which comprises an MCU (Microprogrammed Control Unit) arranged in an electric body, the electric body comprises a power supply unit and a driving unit, the MCU is electrically connected with the power supply unit and the driving unit, the power supply unit supplies power to the MCU and the driving unit, and the driving unit is electrically connected with the MCU. The MCU controls and adjusts the output power of the driving unit; the ID recognition module is arranged at the connecting end of the electric body, and the ID recognition module is electrically connected with the MCU control unit; the ID module is arranged on the electric working head, the electric working head is movably disassembled and assembled at the connecting end of the electric body, the driving unit is movably connected with the electric working head and drives the electric working head to operate, signals of the ID module and the ID recognition module are disconnected and connected according to disassembly and assembly of the electric working head relative to the connecting end, and different types of working heads can be mainly automatically sensed and recognized. Therefore, the electric tool is controlled to provide proper driving power, and the optimal driving efficiency of each tool head is released.

Description

Technical Field

[0001] This invention is an intelligent identification device for handheld power tools with replaceable working heads. Specifically, it refers to the technology applied in the field of power tools. It can mainly adapt the characteristics of different working heads to the corresponding parameters after replacement, thereby accurately and quantitatively controlling the output speed, torque or flow during operation to meet different working conditions or work quality requirements. Background Art

[0002] In the field of power tools, handheld power tools with interchangeable heads have emerged to meet the diverse needs of customers. In addition to being able to screw in screws, electric screwdrivers can also provide drill bit assembly, thereby allowing electric screwdrivers to provide the dual functions of screwdrivers and electric drills. However, today, power tools are suitable for driving operations in more than just screwdrivers and electric drills. More and more tool heads with multiple functions can be used by the power drive of power tools. However, such power tools simply limit the mechanical switch of the tool switch through a mechanical structure device to achieve safety limits. However, after replacing different tool heads, the transmission control is not adaptively adjusted according to the different performance of the working heads. Simply put, after different types of tool heads are replaced, they can only provide a fixed power output through the transmission in the power tool, but ignore the power applicable to each working head, thereby failing to better exert the tool's capabilities. Utility Model Content

[0003] The main purpose of the present utility model is to automatically sense and identify different types of working heads, thereby controlling the power tool to provide appropriate driving power and release the best driving efficiency of each tool head. It improves the power tools described in the prior art that can only control various working heads with fixed driving power, and this method cannot bring out the best driving efficiency of each working head.

[0004] The utility model provides an intelligent identification device for a handheld electric tool with a replaceable working head, comprising:

[0005] An MCU control unit is disposed in an electric body, and the electric body includes a power supply unit and a drive unit. The MCU control unit is electrically connected to the power supply unit and the drive unit, and the power supply unit provides power to the MCU control unit and the drive unit. The MCU control unit controls and adjusts the output power of the drive unit;

[0006] an ID recognition module disposed at a connection end of the electric body and electrically connected to the MCU control unit;

[0007] an ID module disposed on an electric working head, the electric working head being movably disassembled and assembled to the connection end of the electric body, and the drive unit being movably engaged with the electric working head to drive it to operate, and the ID module and the ID recognition module being disconnected and connected in accordance with the disassembly and assembly of the electric working head relative to the connection end;

[0008] and an ID data unit, which is disposed in the electric body and electrically connected to the MCU control unit, wherein the ID data unit has a plurality of data messages, each of which is driving data of a different type of electric working head;

[0009] Among them, when different types of electric working heads are replaced and installed on the connection end of the electric body, the ID module signal of each electric working head is connected to the ID identification module. The ID identification module transmits the generated signal to the ID data unit through the MCU control unit for judgment and identification. The ID data unit selects the matching data, and then drives the drive unit through the MCU control unit to start the power according to the selected data, so as to cooperate with the driving operation of different types of electric working heads.

[0010] In the above scheme, the signal conduction between the ID recognition module and the ID module is contactless, which can be a wireless radio frequency identification system (RFID), a NearFi coupler or an NSD position sensor. The signal transmission is performed in the above-mentioned contactless manner, and the ID module is used to store different ID values and identify them using the ID recognition module. The identification information is obtained by the MCU control unit through the contactless sensing process.

[0011] In the above scheme, the signal conduction between the ID recognition module and the ID module is contact-type, and can be connected by wires to transmit signals. The identification between the ID recognition module and the ID module can utilize resistors, capacitors, and inductors to simulate and generate different electrical signals, or store digital ID values in a digital memory, and the ID recognition module and the ID module are electrically connected in contact for identification.

[0012] In the above scheme, a quick function key module is further provided in the electric body, and the quick function key module is electrically connected to the MCU control unit. The quick function key module is controlled to control the number of presses and the long press and short press operation modes to match different modes in the MCU control unit.

[0013] The above solution further includes an LCD display setting button module, which is electrically connected to the MCU control unit. The LCD display setting button module includes a plurality of buttons and a liquid crystal display screen. After pressing each button, the corresponding parameter and value are displayed. Each button can also be used to adjust and set multiple data messages, and the adjusted value is displayed on the liquid crystal display screen.

[0014] In the above solution, a data storage unit is further built into the ID data unit, and each key can be used to adjust and set each data message and store it in the data storage unit.

[0015] The advantages and beneficial effects of the present invention are that: through the signal transmission between the MCU control unit and the ID identification module and the ID module, when the user is replacing different electric working heads, the MCU control unit located in the electric body can output the driving force that can match different types of electric working heads through the various data information in the ID data unit. In addition to protecting the operation of the electric working head, it can also avoid excessive driving force being applied to unsuitable electric working heads, causing damage to accessories. For example, the impact force of the screw locking drive and the rivet driving are different, and safe control effects can be achieved in the control of different working environments, avoiding dangers caused by excessive driving force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the wireless ID sensing head replacement of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the wired ID recognition head replacement of the present invention;

[0019] Figure 3 Specify the block diagram and its relationship.

[0020] Description of representative symbols:

[0021] Interchangeable head intelligent power tool body

[0022] Motor body <10>

[0023] ID recognition electronic module (contactless type) <20>

[0024] ID reading, writing and feedback electronic module <201>

[0025] Near-field coupled antenna <202>

[0026] ID identification electronic module (contact type) <30>

[0027] ID reading and writing electronic connector <301>

[0028] Communication signal cable <302>

[0029] Main drive module <40>

[0030] Control circuit power supply unit <401>

[0031] MCU control unit <402>

[0032] Data storage unit <403>

[0033] Motor drive unit <404>

[0034] Quick function button module <50>

[0035] Plastic buttons <501>

[0036] Electronic button module <502>

[0037] LCD setting button module <60>

[0038] LCD Module <601>

[0039] Plural key <602>

[0040] Motor output shaft <90>

[0041] Electric working head

[0042] ID electronic tag module (contactless type) <70>

[0043] ID electronic module (contact type) <80>

[0044] ID digital or analog ID <801> piece

[0045] Electrical signal connector <802> DETAILED DESCRIPTION

[0046] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0047] Please refer to the first to Figure 3 As shown, the utility model is an intelligent identification device for a handheld electric tool with a replaceable working head, the electric tool body With replaceable working head Two parts. The power tool body Including motor body <10> , quick function button module <50> , LCD setting button module <60> , ID identification electronic module <20> or <30> , main drive module <40> ;Replaceable working head including ID module <70> or <80> . Among them, the ID identification electronic module <20> With ID identity module <80> Corresponding to the contact electrical signal connection identification structure; ID identification electronic module <30> With ID identity module <70> The corresponding non-contact sensing recognition structure. Main drive module <40> Including power supply unit <41> 、MCU control unit <42> , data storage unit <43> , motor drive unit <44> ;The MCU control unit <42> Electrically connected to the power supply unit <41> and motor drive unit <44> , and the power supply unit <41> Provides power to the MCU control unit <42> And the motor drive unit <44> , the motor drive unit <44> Electrically connected to the motor body <10> , the MCU control unit <42> Then control and adjust the motor drive unit <44> The output power drives the motor body <10> Power size; ID identification electronic module <20> , which is provided on the motor body <10> A motor output shaft <90> , and the ID identifies the electronic module <20> or <30> System and MCU control unit <42> Wired electrical connection or wireless induction association; an ID electronic module <80> or electronic tag module <70> , which is set on an electric working head , the electric working head The system can be disassembled and assembled on the main body of the power tool Motor output shaft <90> , then there is a main drive module <40> Motor drive unit <44> Through the motor body <10> Motor output shaft <90> Drive electric working head Operation, and the ID electronic module <80> Identify the electronic module with this ID <20> The electric working head Relative ID reading and writing electronic connector <301> Connecting header with electrical signal <802> The signal is disconnected and connected by disassembly and assembly. And a data storage unit <43> , which is located on the power tool body Internally and electrically connected to the MCU control unit <42> , the data storage unit <43> There are multiple data messages built in, each of which is for different types of electric working heads. Drive data, such as applicable load voltage, current, torque, impact force, etc.; Among them, in different types of electric working heads Replacement device on the power tool body Motor output shaft <90> When each electric working head The ID electronic module <80> Signal connection to the ID identification electronic module <20> , the ID identifies the electronic module <20> The generated signal is passed through the MCU control unit <42> Send to the data storage unit <43> The data storage unit is used to judge and identify <43> Then select the matching data and control it through the MCU <42> Drive the motor drive unit <44> Power is started according to the selected data to match different types of electric working heads Drive operation.

[0048] Users can choose the electric working head to be used according to the working environment After that, the electric working head Corresponding to the output shaft of the motor <90> After the drive shaft 104 is installed and combined, it is located at the electric working head ID electronic module <80> The power tool body ID identification electronic module <20> The state of signal transmission is formed when the ID identifies the electronic module. <20> With the ID electronic module <80> After the intermediate connection is turned on, a matching electric working head is generated. The signal will be transmitted through the ID recognition electronic module. <20> Transmitted to the MCU control unit <42> , then the MCU control unit <42> The signal will be compared to the data storage unit <43> The MCU control unit will then match the corresponding signal data. <42> The power supply unit can be adjusted according to the selected data information <41> Output power (voltage, current), motor drive unit <44> The driving force (torque, impact, speed, etc.) of the electric working head can be adapted to the accessories to be driven (such as screws, rivets, etc.). When installed on the power tool body The most suitable driving force can be obtained after each operation, and the user does not need to adjust one by one. The overall control is more intelligent, which not only protects the operator's safety in operation, but also avoids the possibility of overdriving and sudden rushing due to inappropriate driving force, and also avoids the problem of insufficient driving force and failure to engage firmly (such as screw locking not being tight enough, rivet riveting not being deep enough, etc.). More importantly, it can effectively protect the electric working head. , Power tool body Long-term operation and use.

[0049] The utility model is an electric working head With the power tool body The combination between them can be divided into two types. The first one is shown in the second figure, and with the first figure as an aid, the electric working head With the power tool body After the combination of <30> With ID electronic tag module <70> The signal conduction method between the two is contactless, and the so-called contactless type can have a wireless radio frequency identification system (RFID), NearFi coupler or NSD position sensor (here is a list, not to limit the above three types), for example, when the ID recognition electronic module <30> , ID electronic tag module <70> When it is a radio frequency identification system (RFID), the radio frequency reading and writing function in the radio frequency identification system (RFID) is used to transmit specific signals through the MCU control unit. <42> And with the data storage unit <43> Match the multiple data information in the data, and match the current electric working head from each data information The required drive specifications, and the MCU control unit <42> The electric working head can be adjusted according to the matched data information Drive adjustment makes the electric working head Able to operate according to the matched data information.

[0050] When the ID identification electronic module <20> With ID electronic module <80> When the signal conduction between them is contact type, the contact method can be interconnected by wires. In simple terms, the ID identification electronic module <20> and ID electronic modules <80> They are all electrically connected with wires, and the other end of each wire is equipped with a male plug and a female plug. The electrical connection between the male and female plugs is used to transmit signals to the MCU control unit. <42> and data storage unit <43> After the matching is completed, the MCU control unit <42> You can then perform appropriate operations as shown in the third figure, with the first figure as an aid.

[0051] The utility model is to provide users with a method of replacing an electric working head on the body. Before starting the driving operation, you can clearly see the current power tool main body Is it possible to adjust to match the electric work head after detection? The driving force of the power tool body is further Equipped with a shortcut function key module <50> , the shortcut function button module <50> The system is electrically connected to the MCU control unit <42> The MCU control unit is started and controlled by pressing the function button several times or in the form of long and short presses. <42> In the data storage unit <43> Output the corresponding data information in the MCU. Simply put, the previously established data and control process are called out from the MCU storage through the shortcut function button 6 with a simple operation switch, and the motor drive unit is directly adjusted. <44> To improve the efficiency of repeated continuous work, please refer to the first figure (output shaft power, torque and the specified timing increase or decrease or start the brake programming mode parameters) corresponding to the built-in data information in the data unit, and then through the MCU control unit <42> The output shaft is controlled accordingly (for example, when the rivet head is working, it starts to increase the force to pull the rivet, then brakes, and then reverses to pull the rivet core).

[0052] In addition to the above-mentioned shortcut function button module <50> In addition, an LCD setting button module can be further provided. <60> , the LCD setting button module <60> Includes LCD module <601> and plural keys <602> The system is electrically connected to the MCU control unit <42> , the LCD setting button module <60> Associated with multiple buttons <602> After pressing, the corresponding parameters and values will be displayed. <602> The system can adjust, set, and fine-tune multiple data information, so users can set the button module through the LCD <60> The data presented in the article can help you understand the current situation of the electric working head to be replaced. Whether it matches the power tool body The adjusted driving force can also monitor and check the motor drive unit at any time <44> Is there any error in the driving force generated? If there is an error or fine-tuning is required according to the environment or operation process, the multiple buttons <602> It can also provide fine adjustment to allow the power tool body to Can provide more precise driving force to drive the electric working head Operation is shown in the first figure.

[0053] Finally, in order to make the present invention more intelligent, in order to provide the data storage unit with the fine-tuned mode, the data storage unit can be used in the fine-tuned mode in the future. <43> A data storage unit is further built in <43> , each plural key <602> After adjusting and setting each data message, it can be stored in the data storage unit. <43> In order to provide the same driving force of the electric working head in the future For matching use, users can quickly select without wasting time on adjustments and settings, as shown in the first picture.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent identification device for a handheld power tool with an interchangeable working head, characterized in that: include: An MCU control unit is disposed in an electric body, and the electric body includes a power supply unit and a drive unit. The MCU control unit is electrically connected to the power supply unit and the drive unit, and the power supply unit provides power to the MCU control unit and the drive unit. The MCU control unit controls and adjusts the output power of the drive unit; an ID recognition module disposed at a connection end of the electric body and electrically connected to the MCU control unit; an ID module disposed on an electric working head, the electric working head being movably disassembled and assembled to the connection end of the electric body, and the drive unit being movably engaged with the electric working head to drive it to operate, and the ID module and the ID recognition module being disconnected and connected in accordance with the disassembly and assembly of the electric working head relative to the connection end; and an ID data unit, which is disposed in the electric body and electrically connected to the MCU control unit, wherein the ID data unit has a plurality of data messages, each of which is driving data of a different type of electric working head; Among them, when different types of electric working heads are replaced and installed on the connection end of the electric body, the ID module signal of each electric working head is connected to the ID identification module. The ID identification module transmits the generated signal to the ID data unit through the MCU control unit for judgment and identification. The ID data unit selects the matching data, and then drives the drive unit through the MCU control unit to start the power according to the selected data, so as to cooperate with the driving operation of different types of electric working heads.

2. The intelligent identification device for a handheld power tool with replaceable working heads according to claim 1, characterized in that: The signal conduction between the ID recognition module and the ID module is contactless, which can be a wireless radio frequency identification system (RFID), a NearFi coupler or an NSD position sensor. The signal transmission is carried out in the above-mentioned contactless manner, and the ID module is used to store different ID values and identify them. The identification information is obtained by the MCU control unit through the contactless sensing process.

3. The intelligent identification device for a handheld power tool with replaceable working heads according to claim 1, characterized in that: The signal conduction between the ID recognition module and the ID module is contact-type, and can be connected by wires to transmit signals. The identification between the ID recognition module and the ID module can utilize resistors, capacitors, and inductors to simulate and generate different electrical signals, or store digital ID values in a digital memory, and the ID recognition module and the ID module are electrically connected by contact for identification.

4. An intelligent identification device for a handheld electric tool with replaceable working heads according to any one of claims 1 to 3, characterized in that: A quick function key module is further provided on the electric body, and the quick function key module is electrically connected to the MCU control unit. The quick function key module is controlled to control the number of presses and the long press and short press operation modes to match different modes in the MCU control unit.

5. The intelligent identification device for a handheld electric tool with replaceable working heads according to claim 1, characterized in that: It further includes an LCD display setting button module, which is electrically connected to the MCU control unit. The LCD display setting button module includes a plurality of buttons and a liquid crystal display screen. When each button is pressed, the corresponding parameter and value are displayed. Each button can also be used to adjust and set multiple data messages, and the adjusted value is displayed on the liquid crystal display screen.

6. The intelligent identification device for a handheld electric tool with replaceable working heads according to claim 5, characterized in that: The ID data unit further has a built-in data storage unit, and each key can be used to adjust and set each data message and store it in the data storage unit.

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