cutting tools

Abstract

The present invention provides a cutting tool comprising: a housing; a motor disposed within the housing to provide driving force for the cutting tool; an operating element that can be triggered by a user to have multiple operating states; a liquid storage system comprising a liquid storage device mounted on the housing and a guide member for directing the flow of liquid; a system control member disposed in a liquid flow path of the liquid storage system to control the flow state of liquid within the liquid storage device; and a control unit electrically connected to at least the operating element and the system control member. The control unit is configured to: obtain control signals output by the operating element in different operating states; upon receiving a first control signal, activate the control system control member to start the liquid storage system; and upon receiving a second control signal, control the motor to rotate. Using the present invention, the on / off states of the liquid storage system and the motor are controlled by a single switch, allowing for more flexible control of liquid flow or shutoff according to different operating conditions without wasting liquid.

Description

Technical Field

[0001] The present invention relates to an electric tool, in particular to a cutting tool. Background Art

[0002] Cutting tools generally refer to handheld tools used to cut workpieces, such as marble cutters. Typically, when cutting workpieces such as stone and wood, a large amount of dust is generated, which poses a hazard to the working environment and the human body. Furthermore, the cutting accessories will generate heat due to the continuous cutting action, affecting the tool's performance and posing a safety hazard. Therefore, to address these issues, cutting tools are typically equipped with a liquid storage device that is manually controlled to control when the liquid flows out and the flow rate. However, manually controlled liquid storage devices have low control accuracy, which can easily lead to liquid waste or untimely discharge. Summary of the Invention

[0003] The main purpose of the present invention is to provide a cutting tool that controls the on / off status of the liquid storage system and the motor through a switch, and can flexibly control the outflow or shutoff of the liquid according to different working conditions without wasting liquid.

[0004] In order to achieve the above main purpose of the invention, a cutting tool is provided, comprising:

[0005] A cutting tool comprises: a shell; a motor, arranged in the shell to provide driving force for the cutting tool; an operating element, which can be triggered by a user to have multiple operating states; a liquid storage system, comprising a liquid storage device mounted on the shell and a guide member for guiding the flow direction of the liquid; a system control member, arranged on the liquid flow path of the liquid storage system, to control the flow state of the liquid in the liquid storage device; a control unit, electrically connected to at least the operating element and the system control member; the control unit is configured to: obtain control signals output by the operating element in different operating states; when a first control signal is obtained, control the system control member to turn on to start the liquid storage system; when a second control signal is obtained, control the motor to rotate.

[0006] Furthermore, the operating element has a certain switching stroke along a preset direction; and the control unit is configured to control the start-up sequence of the system control component and the motor according to the switching stroke of the operating element.

[0007] Furthermore, the control unit is configured to: when the switch stroke of the operating element is less than or equal to a first stroke threshold, obtain the first control signal output by the operating element to control the start-up of the system control component; when the switch stroke of the operating element is greater than the first stroke threshold, obtain the second control signal output by the operating element to control the rotation of the motor.

[0008] Furthermore, the control unit is configured to: when the switch stroke of the operating element is greater than the second stroke threshold and less than or equal to the third stroke threshold, obtain the third control signal output by the operating element to control the system control component to periodically turn on; when the switch stroke of the operating element is greater than the third stroke threshold, obtain the first control signal output by the operating element to control the system control component to start.

[0009] Furthermore, it also includes: a speed detection module for detecting the speed of the motor; the control unit is configured to: obtain the speed of the motor; when the speed is less than a first speed threshold, control the system control component to be closed; when the speed is greater than or equal to the first speed threshold and less than or equal to a second speed threshold, control the system control component to be periodically turned on; when the speed is greater than the second speed threshold, control the system control component to be turned on.

[0010] Furthermore, it also includes: a temperature detection module for detecting the temperature of the system control component; the control unit is configured to: obtain the temperature output by the temperature detection module; when the temperature is greater than a first temperature threshold and less than a second temperature threshold, control the system control component to shut down; when the temperature is greater than or equal to the second temperature threshold, control the motor to stop rotating.

[0011] Furthermore, it also includes: a flow detection module for detecting the flow of liquid in the liquid storage system; the control unit is configured to: control the system control component to close when the flow is less than a flow threshold.

[0012] Furthermore, it also includes: a capacity detection module for detecting the capacity of the liquid in the liquid storage device; the control unit is configured to: control the system control component to shut down when the capacity is less than a capacity threshold.

[0013] Furthermore, the control unit is configured to: when a fourth control signal is obtained, control the motor to stop rotating, and control the system control component to shut down after a preset time period.

[0014] Furthermore, the control unit is configured to: detect the current rotation speed of the motor when the fourth control signal is obtained; and match a corresponding preset time period according to the current rotation speed of the motor.

[0015] A cutting tool comprises: a shell; a motor arranged in the shell to provide driving force for the cutting tool; a liquid storage system, comprising a liquid storage device mounted on the shell and a guide member for guiding the flow direction of the liquid; a system control member arranged on the liquid flow path of the liquid storage system to control the flow state of the liquid in the liquid storage device; an operating element that can be triggered by a user to have multiple operating states; when the operating element is in a first operating state, it can trigger the system control member to turn on to start the liquid storage system; when the operating element is in a second operating state, it can trigger the motor to rotate.

[0016] The beneficial effect of the present invention is that by controlling the operating elements to generate different control signals, the liquid storage system and the motor can be controlled separately, so that the outflow or shutoff of the liquid in the liquid storage system of the cutting tool can be controlled more flexibly to make the working performance of the tool more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective schematic diagram of a cutting tool in one embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A perspective diagram of the cutting tool from another angle;

[0019] Figure 3 yes Figure 1 Schematic diagram of the internal structure of the cutting tool;

[0020] Figure 4 yes Figure 1 A schematic diagram of a control system for a cutting tool;

[0021] Figure 5 yes Figure 1 A schematic diagram of a control system for a cutting tool;

[0022] Figure 6 yes Figure 1 A schematic diagram of a control system for a cutting tool;

[0023] Figure 7 yes Figure 1 A schematic diagram of a control system for a cutting tool;

[0024] Figure 8 yes Figure 1 A schematic diagram of a control system for a cutting tool;

[0025] Figure 9 yes Figure 1 Flowchart of the control method for the cutting tool. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of the components.

[0028] It is understood that the cutting tool 300 of the present invention can be a handheld cutting tool that can cut various workpieces, such as stone, wood, etc. The following is an example of a marble cutting machine:

[0029] Reference Figures 1 to 3 , a cutting tool 300 is provided, which can be specifically a marble machine, which can be used to cut workpieces such as stone, and it grinds and cuts the stone by driving the grinding disc to rotate. The cutting tool 300 includes: a housing 310, a motor 10, a grinding disc mounting portion 330 and a transmission mechanism 340. The motor 10 is supported by the housing 310, the grinding disc mounting portion 330 includes an output shaft 341 connected to the grinding disc (not shown), and the transmission mechanism 340 connects the output shaft 341 and the motor 10. The cutting tool 300 also includes a battery pack interface 320, through which the battery pack 400 is detachably connected. The battery pack 400 can supply power to the motor 10, and the motor 10 rotates and drives the output shaft 341 to rotate through the transmission mechanism 340, so that the grinding disc can grind and cut the workpiece. Optionally, the cutting surface of the grinding disc is provided with metal particles, and the workpiece is cut by the metal particles.

[0030] Specifically, the housing 310 forms a motor accommodating portion 311 and a gripping portion 312. The motor accommodating portion 311 is used to place the motor 10, and the gripping portion 312 is for the user to grip and operate the cutting tool 300. The battery pack 400 interface is provided at the rear end of the motor accommodating portion 311, and the grinding wheel mounting portion 330 is provided at the side end of the motor accommodating portion 311. The rear end of the motor accommodating portion 311 refers to the direction opposite to the front end of the cutting tool 300 where the sawing indicator is located. Because the grinding wheel is relatively small, the battery pack interface 320 can be provided at the rear end of the motor accommodating portion 311. After the battery pack 400 is installed to the battery pack interface 320, the battery pack 400 is provided at the rear end of the motor accommodating portion 311. Optionally, the battery pack 400 can be inserted obliquely at the rear end of the entire machine to increase the compactness of the entire machine structure.

[0031] The cutting tool 300 also includes a control panel (not shown). Because the battery pack 400 is located at the rear end of the motor housing 311, the control panel is located at the front end of the motor housing 311 and within the housing 310. The control panel integrates a control unit 20, which controls the operation of the motor 10. The cutting tool 300 also includes an operating element 360, located at the front end of, or on, the grip 312, to facilitate powering the tool while the user is holding the tool. Specifically, when the user presses the operating element 360, the control unit 20 receives a power-on signal from the operating element 360 and controls the motor 10 to turn on, thereby activating the cutting tool 300 and driving the grinding disc. In this embodiment, the operating element 360 can be a push-type switch, a push-type switch, or a rotary switch. The operating element 360 can generate different control signals depending on the degree of pressure applied, the distance traveled, or the position of the rotary knob.

[0032] Reference Figure 1 and Figure 3 The cutting tool 300 also includes a liquid storage system 350, which includes at least a liquid storage device 351 mounted on the housing 310 and a guide member 352 disposed within the housing 310 to direct the flow of liquid. Optionally, the liquid storage device 351 can be detachably mounted on the housing 310 or fixed to the housing 310. Specifically, the guide member 352 is disposed within a guide groove 331 within the grinding disc mounting portion 330. Optionally, one end of the guide member 352 serves as a liquid inlet 3521 connected to the liquid storage device 351, while the other end serves as a liquid outlet 3522 disposed at a distance from the grinding disc. In one embodiment, the guide member 352 can be a flexible or rigid conduit. For example, the guide member 352 can be a metal tube. It should be noted that if the guide member 352 is a flexible conduit, a conduit fixing member can be added to secure the conduit within the grinding disc mounting portion 330 to prevent the liquid outlet 3522 of the guide member 352 from contacting the grinding disc and damaging the guide member 352. Preferably, the liquid stored in the liquid storage device 351 can be water.

[0033] Cutting tool 300 also includes a system control unit 370 for controlling the on / off state of liquid storage system 350. In one embodiment, system control unit 370 can be disposed in the liquid flow path of the liquid storage system, for example, between liquid storage device 351 and guide member 352. Specifically, the liquid outlet of liquid storage device 351 is connected to system control unit 370, and the liquid inlet 3521 of guide member 352 is also connected to system control unit 370. System control unit 370 can control whether the liquid in liquid storage device 351 flows out to guide member 352 or the flow rate of the liquid flowing into guide member 352. Alternatively, system guide member 352 can be a solenoid valve, a mechanical valve, or the like.

[0034] In this embodiment, operating element 360 controls the on / off state of system control element 370. When system control element 370 is on, liquid flows within guide member 352; when system control element 370 is off, liquid does not flow within guide member 352. In other words, operating element 360 not only controls the operation of motor 10 but also controls the flow of liquid within guide member 352.

[0035] In one embodiment, the system control component 370 is a solenoid valve including an electromagnet. When powered on, the solenoid valve opens, allowing the liquid in the liquid storage device 351 to flow out. When powered off, the solenoid valve closes, preventing the liquid in the liquid storage device 351 from flowing out. In a specific implementation, the control unit 20 in the cutting tool 300 can control the displacement of the electromagnet to activate the system control component 370 when the motor 10 is running. Optionally, the control unit 20 is configured to activate the system control component 370 first when the operating element 360 is pressed, and then activate the motor 10 N seconds later, to optimize heat dissipation. Optionally, when the operating element 360 is pressed, the system control component 370 and the motor 10 are activated simultaneously. Optionally, when the operating element 360 is activated, the motor 10 is activated first, followed by the system control component 370 activating N seconds later, to conserve cooling liquid. Optionally, when the operating element 360 is released, the motor 10 is stopped first, followed by the system control component 370.

[0036] In one embodiment, to achieve different control states between the motor 10 and the system control component 370, the operating element 360 can have multiple different operating states, and different control signals can be output to the control unit 20 in different operating states. For example, the operating element 360 can have a certain switching stroke along a preset direction, and can generate at least two control signals within the synchronous switching stroke. The preset direction refers to the operating direction of the switch when the machine is turned on. In one implementation, the different switching strokes of the operating element 360 correspond to its different operating states, and different control signals are generated in different operating states. For example, the operating element 360 can generate a first control signal when in a first operating state, and a second control signal when in a second operating state. It is understood that the method for generating the switch travel is related to the type of operating element 360. For example, if the operating element 360 is a push-type switch, the corresponding switch travel varies when the switch is pressed with different forces, with a small switch travel when the pressure is light and a large switch travel when the pressure is strong. Alternatively, if the operating element 360 is a push-type switch, the switch travel gradually increases as the user pushes the switch in the set opening direction. Alternatively, if the operating element 360 is a knob switch, the switch travel gradually increases as the user rotates the knob in the set opening direction. Optionally, when the switch travel of the operating element 360 is less than or equal to a first formation threshold, the operating element 360 can generate a first control signal; when the switch travel of the operating element 360 is greater than the first formation threshold, the operating element 360 can generate a second control signal.

[0037] In this embodiment, the control unit 20 is capable of receiving a control signal output by the operating element 360. Upon receiving a first control signal, the control system control element 370 is activated to activate the liquid storage system 350. Consequently, liquid in the liquid storage device 351 enters the guide member 352. After passing through the guide member 352, the liquid flows out of the liquid outlet 3522 onto the grinding disc, thereby moistening the grinding disc and thereby dissipating heat from the grinding disc or moistening the workpiece. Upon receiving a second control signal output by the operating element 360, the control unit 20 is capable of activating the motor 10. As will be appreciated, since the change in switch travel is relatively short, the system control element 370 can be activated before the motor 10 within a short period of time. This change in switch travel allows the system control element 370 and the motor 10 to be activated at different times, thereby achieving the desired effect of pre-moistening the workpiece and grinding disc at the appropriate time without wasting water.

[0038] In an alternative embodiment, the switching stroke of operating element 360 can be further refined. For example, when the switching stroke of operating element 360 is less than or equal to the second stroke threshold, operating element 360 does not output a control signal, meaning that the liquid storage device 351 is not prematurely opened. This prevents liquid waste when the switching stroke is longer. When the switching stroke is greater than a third threshold and less than or equal to a fourth threshold, a third control signal is output. Based on the third control signal, control unit 20 can periodically activate system control element 370, thereby controlling the solenoid valve to cycle on and off. When the switching stroke is greater than the third stroke threshold, operating element 360 outputs a first control signal, activating system control element 370. It is understood that when the switching stroke is greater than the fourth stroke threshold, operating element 360 can output a second control signal, activating motor 10. The fourth stroke threshold is greater than the third stroke threshold. By configuring different activation states for system control element 370 under these switching strokes—not activating when the switching stroke is short, activating periodically when the switching stroke is slightly longer, and activating directly when the switch stroke is sufficiently long—this allows for more flexible adaptation to power-on actions for operating elements 360 with varying switching strokes.

[0039] It should be noted that the first travel threshold and the second to fourth travel thresholds are set values in different real-time modes and are related to the total switch travel of the operating element 360. They are not comparable. Therefore, no limitation is imposed on the values of the first travel threshold and the second to fourth travel thresholds.

[0040] In one embodiment, the speed of motor 10 varies nonlinearly during operation of cutting tool 300. That is, the speed of motor 10 varies under different operating conditions. For example, when the stone is hard, the speed of motor 10 may be lower to avoid damaging the grinding disc. When the stone is soft, the speed of motor 10 may be higher to improve efficiency. Furthermore, the degree of dust generated or the heating of the grinding disc varies under different operating conditions. Therefore, the liquid storage system 350 can be more precisely controlled to meet the needs of different operating conditions.

[0041] like Figure 4As shown, the cutting tool 300 also includes a speed detection module 30, which can detect the speed of the motor 10. The control unit 20 can obtain the speed of the motor 10 output by the speed detection module 30. When the speed of the motor 10 is less than the first speed threshold, the control system control component 370 is turned off; when the speed is greater than or equal to the first speed threshold and less than or equal to the second speed threshold, the control system control component 370 is periodically turned on; when the speed is greater than the second speed threshold, the control system control component 370 is turned on. By controlling the infusion system to provide different forms of liquid discharge or no liquid discharge at different speeds of the motor 10, better dust prevention or heat reduction effects are achieved while avoiding waste of liquid. It is understandable that the control unit 20 also controls the control system control component 370 to output liquid at a smaller flow rate or flow rate when the speed of the motor 10 is greater than or equal to the first speed threshold. For example, when the speed of the motor 10 is less than 500 rpm, the control unit 20 can turn off the system control element 370; when the speed of the motor 10 is between 500 rpm and 3000 rpm, the control unit 20 can periodically turn on the system control element 370; and when the speed of the motor 10 is greater than 3000 rpm, the control system control element 370 is turned on. It should be noted that the control unit 20 can adjust the period of periodic activation of the system control element 370 based on the actual speed of the motor 10.

[0042] It should be noted that a drive circuit 70 is also provided between the motor 10 and the control unit 20. The drive circuit 70 can transfer current from the battery pack 400 to the stator windings of the motor 10 to drive the motor 10 to rotate. In one embodiment, the drive circuit 70 includes multiple switching elements (not shown), for example, six switching elements. The gate terminal of each switching element is electrically connected to the control unit 20 for receiving control signals from the control unit 20. The drain or source terminal of each switching element is connected to the stator windings of the motor 10. The six switching elements receive control signals from the control unit 20 to change their respective conduction states, thereby changing the current applied to the stator windings of the motor 10 by the battery pack 400. In one embodiment, the drive circuit 70 may be a three-phase bridge driver circuit comprising six controllable semiconductor power devices (e.g., FETs, BJTs, IGBTs, etc.). It is understood that the switching elements may also be any other type of solid-state switches, such as insulated gate bipolar transistors (IGBTs) or bipolar junction transistors (BJTs).

[0043] In one embodiment, during the operation of the cutting tool 300, the temperature of the system control component 370 may also increase due to frequent power on and off, thereby affecting the accuracy of its control. Figure 5As shown, the cutting tool 300 also includes a temperature detection module 40 for detecting the temperature of the system control component 370 and outputting it to the control unit 20. When the temperature of the system control component 370 is greater than the first temperature threshold and less than the second temperature threshold, the control unit 20 controls it to shut down; when the temperature is greater than or equal to the second temperature threshold, the motor 10 is controlled to stop rotating. For example, when the temperature of the system control component 370 is greater than 0° and less than 60°, both the motor 10 and the system control component 370 operate normally; when the temperature is greater than 60° and less than 90°, the temperature of the system control component 370 is high, and continuing to work will affect its performance. The control unit 20 shuts down the control unit 20, but the motor 10 can still operate normally at this time; if the temperature continues to rise to greater than or equal to 90°, the motor 10 is controlled to stop rotating, that is, the temperature of the system control component 370 at this time will also affect the normal operation of the motor 10.

[0044] In one embodiment, during the operation of the cutting tool 300, the liquid capacity in the liquid storage device 351 will gradually decrease with use. If the liquid discharge is not stopped in time when it is below a certain value, the liquid storage system 350 may be damaged. Figure 6 As shown, the cutting tool 300 may further include a flow detection module 50 for detecting the flow of the liquid in the liquid storage system 350 and transmitting the detected flow to the control unit 20. When the flow is less than a flow threshold, the control unit 20 shuts down the control system control element 370. Thus, when the liquid in the liquid storage device 351 is low, the liquid storage device 351 can be shut down in advance to avoid damaging the liquid storage system 350.

[0045] In one embodiment, Figure 7 As shown, a capacity detection module 60 can also be provided in the cutting tool 300 to detect the volume of liquid in the liquid storage device 351 and transmit the information to the control unit 20. The control unit 20 can control the control system control component 370 to shut down when the liquid volume falls below a capacity threshold. It can also shut down the liquid storage device 351 before the liquid in the liquid storage device 351 is insufficient to provide heat or dust reduction functions for the tool, thereby preventing damage to the liquid storage system 350.

[0046] Optionally, after controlling the liquid storage system 350 to stop discharging liquid, the control unit 20 can control the tool to enter a standby mode. After the liquid storage device 351 is refilled with liquid, the tool can re-enter the operating mode, i.e., control liquid flow and start the motor 10. Optionally, if the control unit 20 detects that the volume of the liquid storage device 351 has not increased within a preset time period when the system control unit 370 is closed, or that the liquid flow rate has not increased after the liquid storage system 350 is reopened, the motor 10 can be directly controlled to shut down.

[0047] In one embodiment, if the control unit 20 receives a fourth control signal, it controls the motor 10 to stop rotating and controls the system control component 370 to shut down after a preset time period. It is understood that the operating component 360 can issue a fourth control signal when the switch stroke changes from maximum to zero. In other words, the fourth control signal is the signal output by the operating component 360 when the user operates the tool for a normal shutdown. It is not a control signal that controls the motor 10 to stop during an abnormal shutdown. An abnormal shutdown may include shutting down the motor 10 due to insufficient liquid in the liquid storage system 350 and not refilling the system control component 370 for a period of time after shutting down the system control component 370; or shutting down the motor 10 due to a high temperature of the system control component 370. In this embodiment, shutting down the system control component 370 after a preset time period after the user operates the tool for normal shutdown can quickly cool the grinding disc after shutdown and achieve better dust reduction effects.

[0048] In one embodiment, upon receiving the fourth control signal, the control unit 20 may detect the current speed of the motor 10 and match the preset time period to the current speed. For example, if the current speed of the motor 10 is higher when it is shut down, the preset time period may be longer, and vice versa. Furthermore, if the speed of the motor 10 is very low during shutdown, the system control unit 370 may also be disabled.

[0049] In one embodiment, at least one power element, such as a MOS transistor, is provided between the system control element 370 and the control unit 20 . The control unit 20 controls the on / off state of the system control element 370 by controlling the conduction state of the MOS transistor.

[0050] In one embodiment, the control system of the cutting tool 300 may include at least two of the speed detection module, the capacity detection module 60, the flow detection module 50, and the temperature detection module 40. Figure 8 As shown, it also includes all the above detection modules.

[0051] In one embodiment, the control unit 20 does not control the opening and closing of the system control member 370. Instead, when the operating member 360 is triggered, the control system control member 370 is activated or periodically activated or deactivated based on its own triggered operating state. Specifically, when the operating member 360 is triggered and in a first operating state, the system control member 370 can be activated to activate the liquid storage system 350. When the operating member 360 is in a second operating state, the motor 10 can be activated. It should be noted that when the operating member 360 is in the second operating state, a second control signal can be generated and transmitted to the control unit 20, which then activates the motor 10. In other words, the system control member 370 can be controlled in conjunction with the operating member 360, while the motor 10 can be controlled by the control unit 10. In one embodiment, the motor 10 can also be activated directly by the operating member 360 without going through the control unit 10. Alternatively, the operating member 360 can be activated or periodically activated or deactivated in conjunction with the control system control member 370 based on the change in its opening and closing stroke.

[0052] The following will be combined Figure 9 A method for controlling the motor and system control components of the cutting tool 300 is described. The method includes the following steps:

[0053] S101, obtaining a control signal output by an operating element.

[0054] It is understandable that the operating element can output different control signals under different switch strokes.

[0055] S102: When the first control signal is obtained, the control system control component is started.

[0056] S103 controls the motor to start when the second control signal is obtained.

[0057] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A cutting tool comprising: case; a motor, disposed in the housing, to provide driving force for the cutting tool; Operation elements can be triggered by the user to have multiple operation states; a liquid storage system comprising a liquid storage device mounted on the housing and a guide member for guiding the flow direction of the liquid; a system control component, disposed on a liquid flow path of the liquid storage system, for controlling the flow state of the liquid in the liquid storage device; a control unit, electrically connected to at least the operating element and the system control component; The control unit is configured to: obtaining a control signal output by the operating element in different operating states; When a first control signal is obtained, controlling the system control component to start to start the liquid storage system; When the second control signal is obtained, controlling the motor to rotate; The operating element has a certain switching stroke along a preset direction; The control unit is configured to: The starting sequence of the system control component and the motor is controlled according to the switch stroke of the operating element.

2. The cutting tool according to claim 1, characterized in that The control unit is configured to: When the switch stroke of the operating element is less than or equal to a first stroke threshold, acquiring the first control signal output by the operating element to control the system control component to start; When the switch stroke of the operating element is greater than the first stroke threshold, the second control signal output by the operating element is obtained to control the rotation of the motor.

3. The cutting tool according to claim 1, characterized in that The control unit is configured to: When the switch stroke of the operating element is greater than a second stroke threshold and less than or equal to a third stroke threshold, obtaining a third control signal output by the operating element to control the system control component to periodically turn on; When the switch stroke of the operating element is greater than the third stroke threshold, the first control signal output by the operating element is obtained to control the system control component to start.

4. The cutting tool according to claim 1, characterized in that Also includes: A speed detection module, used to detect the speed of the motor; The control unit is configured to: Obtaining the rotational speed of the motor; When the rotation speed is less than a first rotation speed threshold, controlling the system control component to be closed; When the rotation speed is greater than or equal to the first rotation speed threshold and less than or equal to the second rotation speed threshold, controlling the system control component to be periodically turned on; When the rotation speed is greater than the second rotation speed threshold, the system control component is controlled to be turned on.

5. The cutting tool according to claim 1, wherein Also includes: A temperature detection module, used to detect the temperature of the system control component; The control unit is configured to: Obtaining the temperature output by the temperature detection module; When the temperature is greater than a first temperature threshold and less than a second temperature threshold, controlling the system control component to shut down; When the temperature is greater than or equal to the second temperature threshold, the motor is controlled to stop rotating.

6. The cutting tool according to claim 1, wherein Also includes: A flow detection module, used to detect the flow of liquid in the liquid storage system; The control unit is configured to: When the flow rate is less than a flow rate threshold, the system control component is controlled to be closed.

7. The cutting tool according to claim 1, wherein Also includes: a capacity detection module, configured to detect the capacity of the liquid in the liquid storage device; The control unit is configured to: When the capacity is less than a capacity threshold, the system control component is controlled to be closed.

8. The cutting tool according to claim 1, wherein The control unit is configured to: When the fourth control signal is obtained, the motor is controlled to stop rotating, and the system control component is controlled to be turned off after a preset time period.

9. The cutting tool according to claim 8, characterized in that The control unit is configured to: When the fourth control signal is obtained, detecting the current rotation speed of the motor; A corresponding preset time period is matched according to the current rotation speed of the motor.

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