Control method for electric tool and electric tool

Abstract

A control method for an electric tool and an electric tool using the method. The control method for the electric tool comprises: when the electric tool enters a rotation-in operating state, acquiring the current included angle of inclination of the electric tool, the current included angle of inclination being an included angle between the current angle of inclination and a preset angle of inclination of the electric tool; and when the current included angle of inclination satisfies a first angle condition, controlling the electric tool to at least complete the following items: stopping rotation, and adjusting the configuration of the rotation direction mode to a second direction mode, wherein the current included angle of inclination satisfying the first angle condition comprises the current included angle of inclination being greater than or equal to a first angle threshold. The electric tool is provided with a sensor for measuring the current angle of inclination of the electric tool. The control method for the electric tool and the electric tool using the method can effectively prevent screwing or drilling misalignment and damage of workpieces, thereby greatly improving user experience.

Description

Control method of electric power tool and electric power tool TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power tool control, and particularly relates to a control method of electric power tool and electric power tool. BACKGROUND

[0002] The torque of a drill gear of an electric power tool such as an electric drill is generally large, and the electric power tool is used in a scene of drilling a hole. The torque of a screw gear is generally small, and the electric power tool is used in a scene of screw fastening in a hole.

[0003] When the electric power tool is working in the drill gear or the screw gear, the head of the electric power tool is prone to be twisted or slip due to insufficient pressing force, too fast initial speed, angle deviation and other factors. Therefore, how to prevent the electric power tool from being twisted is very important. SUMMARY

[0004] In view of this, the embodiments of the present application provide a control method of electric power tool and electric power tool to solve at least one problem in the background art.

[0005] In a first aspect, the embodiments of the present application provide a control method of electric power tool, and the control method comprises the following steps.

[0006] In a case where the electric power tool enters a transition working state, a current included angle of the electric power tool is obtained; the current included angle is an included angle between a current inclination angle of the electric power tool and a preset inclination angle; in the transition working state, a workpiece acted on by the electric power tool is entered;

[0007] In a case where the current included angle meets a first angle condition, the electric power tool is controlled to at least complete the following items.

[0008] stopping rotation;

[0009] adjusting a configuration of a rotation direction mode to a second direction mode;

[0010] The current included angle meeting the first angle condition comprises that the current included angle is greater than or equal to a first angle threshold.

[0011] The rotation direction mode of the electric power tool in the transition working state is a first direction mode; the first direction mode is different from the second direction mode; the first direction mode comprises continuous forward rotation; and the second direction mode comprises continuous reverse rotation.

[0012] The electric power tool is configured with a sensor for measuring the current inclination angle of the electric power tool.

[0013] With reference to the first aspect, in an optional implementation of the control method, the control method further includes:

[0014] When the first starting signal is acquired, the electric power tool is controlled to start rotating in the second direction mode in the case that the electric power tool completes all the matters.

[0015] The electric power tool is further configured with a starting button for generating and outputting the first starting signal.

[0016] With reference to the first aspect, in an optional implementation of the control method, in the case that the current included angle satisfies a first angle condition, the electric power tool further completes at least the following matters:

[0017] The electric power tool is controlled to automatically start rotating in the second direction mode.

[0018] The electric power tool is switched back to the first direction mode to rotate in the case that the electric power tool satisfies a reverse stop condition.

[0019] With reference to the first aspect, in an optional implementation of the control method, in the case that the working current of the electric power tool is greater than the no-load current and less than a current threshold, the reverse stop condition includes that the working current of the electric power tool is reduced to a preset multiple of the no-load current, or the electric power tool is backed up by a preset number of rotations.

[0020] And / or, in the case that the working current of the electric power tool is greater than or equal to the current threshold, the reverse stop condition includes that the working current of the electric power tool is reduced to the no-load current, or the electric power tool is backed up by a number of rotations in the working state.

[0021] The current threshold is greater than the no-load current.

[0022] The second aspect, the embodiments of the present application provide a control method of an electric power tool, the control method includes:

[0023] In the case that the electric power tool enters a working state, a current included angle of the electric power tool is acquired; the current included angle is an included angle between a current tilt angle of the electric power tool and a preset tilt angle; in the working state, a workpiece acted on by the electric power tool is entered.

[0024] In the case that the current included angle satisfies a second angle condition, the electric power tool is controlled to complete at least one of the following first matters:

[0025] A prompt signal is generated.

[0026] A rotation speed is reduced.

[0027] in a case where the current tilt included angle meets a third angle condition, controlling the power tool to at least complete the following second matter:

[0028] stopping;

[0029] adjusting the configuration of the rotation direction mode to a second direction mode;

[0030] wherein the current tilt included angle meeting the second angle condition comprises the current tilt included angle being greater than an anti-shake angle threshold and less than or equal to a second angle threshold;

[0031] the current tilt included angle meeting the third angle condition comprises the current tilt included angle being greater than the second angle threshold;

[0032] wherein the rotation direction mode of the power tool in the turning-in working state is a first direction mode; the first direction mode is different from the second direction mode; the first direction mode comprises continuous forward rotation; and the second direction mode comprises continuous reverse rotation;

[0033] wherein the power tool is configured with a sensor for measuring a current tilt angle of the power tool.

[0034] In combination with the second aspect, in an optional implementation, the controlling the power tool in the case where the current tilt included angle meets the second angle condition comprises at least one of the following first matters: generating a prompt signal; and reducing the rotation speed, comprising:

[0035] in a case where the current tilt included angle meets a fourth angle condition, controlling the power tool to at least complete the following third matter:

[0036] generating a prompt signal;

[0037] in a case where the current tilt included angle meets a fifth angle condition, controlling the power tool to at least complete the following fourth matter:

[0038] reducing the rotation speed;

[0039] wherein the current tilt included angle meeting the fourth angle condition comprises the current tilt included angle being greater than the anti-shake angle threshold and less than or equal to a third angle threshold;

[0040] the current tilt included angle meeting the fifth angle condition comprises the current tilt included angle being greater than the third angle threshold and less than or equal to the second angle threshold; and the third angle threshold is less than the second angle threshold.

[0041] In combination with the second aspect, in an optional implementation, the control method further comprises:

[0042] In a case where the power tool completes all the second matters, when the second starting signal is acquired, the power tool is controlled to start rotating in the second direction mode according to the configuration of the rotating direction mode.

[0043] The power tool is further configured with a starting button for generating and outputting the second starting signal.

[0044] In combination with the second aspect, in an optional implementation, in a case where the current tilt angle meets a third angle condition, the power tool further completes at least the following second matters:

[0045] starting rotating in the second direction mode automatically;

[0046] switching back to rotating in the first direction mode in a case where the power tool meets a reverse stop condition.

[0047] In combination with the second aspect, in an optional implementation, when the working current of the power tool is greater than the no-load current and less than a current threshold, the reverse stop condition includes that the working current of the power tool decreases to a preset multiple of the no-load current, or the power tool backtracks a preset number of rotations.

[0048] And / or, when the working current of the power tool is greater than or equal to the current threshold, the reverse stop condition includes that the working current of the power tool decreases to the no-load current, or the power tool backtracks a number of rotations in a working state.

[0049] The current threshold is greater than the no-load current.

[0050] Thirdly, the embodiments of the present application provide a power tool, which comprises:

[0051] a sensor for measuring a current tilt angle of the power tool;

[0052] a starting button for generating and outputting a first starting signal, a second starting signal, and / or a third starting signal; and

[0053] a controller; the controller comprises a processor and a memory;

[0054] the memory is used for storing instructions;

[0055] the processor is used for executing the instructions to implement the control method of the power tool according to the first aspect and / or the control method of the power tool according to the second aspect.

[0056] The beneficial effects brought by the technical solutions provided in the embodiments of the present application include: by monitoring the current inclination angle of the power tool when the power tool enters the working state, and by switching the rotation direction of the power tool immediately when the current inclination angle meets the first angle condition, the power tool can be reversed to retreat, and the power tool can effectively prevent screwing or drilling skew. Moreover, after the screwing or drilling skew occurs, the angle adjustment is difficult to perform without retreat, and in the case of a gypsum board and the like, direct adjustment can also cause damage, etc. By switching the rotation direction of the power tool immediately, the power tool can be reversed to retreat, and the workpiece damage caused by the workpiece screwing or drilling skew can be avoided, and the user experience is improved.

[0057] Some of the aspects and advantages of the embodiments of the present application will be given in the following description, some will become apparent from the following description, or will be understood by those skilled in the art through practice of the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0058] The drawings described herein are used to provide a further understanding of the present application, and form a part of the present application, wherein the drawings are not necessarily drawn to scale, and some local features can be enlarged or reduced to more clearly show the details of the local features. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0059] Fig. 1 is a schematic diagram of a specific example of a skew state in the embodiments of the present application;

[0060] Fig. 2 is a schematic diagram of another specific example of a skew state in the embodiments of the present application;

[0061] Fig. 3 is a flowchart of a specific example of a control method of a power tool in the embodiments of the present application;

[0062] Fig. 4 is a two-dimensional schematic diagram of a specific example of a current inclination angle in the embodiments of the present application;

[0063] Fig. 5 is a three-dimensional schematic diagram of a specific example of a current inclination angle in the embodiments of the present application;

[0064] Fig. 6 is a flowchart of another specific example of a control method of a power tool in the embodiments of the present application;

[0065] Fig. 7 is a flowchart of another specific example of a control method of a power tool in the embodiments of the present application;

[0066] Fig. 8 is a schematic diagram of a principle block diagram of a specific example of a power tool in the embodiments of the present application;

[0067] Fig. 9 is a schematic diagram of a principle block diagram of a specific example of a controller in the embodiments of the present application. DETAILED DESCRIPTION

[0068] In order to make the technical solutions and beneficial effects of the present application more obvious and easy to understand, the following will be described in detail by way of listing specific embodiments. The drawings are not necessarily drawn to scale, and local features can be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meaning as the technical and scientific terms in the technical field to which the present application belongs.

[0069] The embodiments of the present application are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present application. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments arbitrarily.

[0070] In each embodiment of the present application, the terms and / or descriptions of the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0071] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and not as a limitation on the present application.

[0072] In the embodiments of the present application, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", or "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, or as plural expression.

[0073] In the embodiments of the present application, "a plurality of" means two or more. In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0074] The prefix words of "first", "second" and the like in the embodiments of the present application are merely used to distinguish different description objects, and do not constitute limitation on the position, sequence, priority, value or content of the description objects. The description objects are described in the claims or embodiments in the context of the description, and should not be construed as redundant limitation because of the use of the prefix words. For example, the value of the description object is not limited by the ordinal number, and can be one or more. For example, the value of "first device" can be one or more. In addition, the objects modified by different prefix words can be the same or different. For example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types can be the same or different.

[0075] In some embodiments, the term "connection" can mean that there is mutual transmission of electrical signals or data between the connected end and the connected end, which can be understood as "electrical connection", "communication connection" and the like. The "connection" can be a direct connection between two components, an indirect connection established through other components, a communication within two components, or any other possible connection form.

[0076] In the process of implementing the present application, the inventors found that the related art has the following problems:

[0077] Figure 1 shows a schematic diagram of one specific example of a skewed state in the embodiments of the present application. As shown in the figure, the screw is skewed when the first screw 103 is used to fix the first wooden board 101 and the second wooden board 102. This will cause the first screw 103 to be unable to be completely screwed into the first wooden board 101, leaving a significant protrusion on the surface of the first wooden board 101, at which time it is impossible to forcibly reset and straighten, and the first screw 103 must be removed first.

[0078] Figure 2 shows a schematic diagram of another specific example of a skewed state in the embodiments of the present application. As shown in the figure, the screw is skewed when the second screw 203 is used to fix the gypsum board 201 to the steel sheet 202. Since the gypsum board 201 is soft in texture, once it is skewed, its surface can be damaged, forming a large hole, and the second screw 203 can have been partially screwed into the steel sheet 202, at which time it is impossible to forcibly reset and straighten, and the second screw 203 must be removed first.

[0079] Therefore, after the screw is skewed, in most cases, if the screw is not removed, effective adjustment cannot be performed.

[0080] In addition, when drilling holes using a drill or the like, the hole may also be skewed disadvantageously.

[0081] Therefore, this application provides a control method for power tools, which can reverse and retract in the event of misalignment during tightening or drilling, effectively preventing misalignment. For example, power tools may include electric drills, screwdrivers, electric screwdrivers, and other similar implements. Figure 3 shows a flowchart illustrating a specific example of the control method for power tools in this application. As shown, the control method may include the following steps:

[0082] S101: When the power tool enters the working state, the current tilt angle of the power tool is obtained; the current tilt angle is the angle between the current tilt angle of the power tool and the preset tilt angle; when the power tool enters the working state, the actuator acted upon by the power tool is engaged.

[0083] S102: When the current tilt angle satisfies the first angle condition, control the power tool to perform at least the following:

[0084] Stop rotating;

[0085] Adjust the rotation direction configuration to the second direction mode;

[0086] Wherein, the current tilt angle satisfies the first angle condition including the current tilt angle being greater than or equal to the first angle threshold;

[0087] The power tool rotates in a first direction when it is in the working state; the first direction is different from the second direction; the first direction includes continuous forward rotation; the second direction includes continuous reverse rotation;

[0088] The power tool is equipped with a sensor for measuring the current tilt angle of the power tool.

[0089] In this embodiment, "entering the working state" can be understood as a working state in which a power tool acts on a workpiece (such as a wooden board) and causes the workpiece to enter the tool, with the entry amount increasing continuously or intermittently. For example, in the working state, a screw has been screwed into the workpiece and is continuously being screwed into the workpiece, or a drill bit has been driven into the workpiece and is continuously drilling into the workpiece. In the working state, the power tool can rotate forward.

[0090] The opposite of entering the working state can be the exiting the working state. The exiting the working state can be understood as the power tool reversing and retracting, thereby causing the screw to be turned outwards from the workpiece, or causing the drill bit to retract outwards from the workpiece.

[0091] Figures 4 and 5 show a two-dimensional and a three-dimensional schematic diagram, respectively, of a specific example of the current tilt angle in an embodiment of this application. As shown, the power tool 300 may include:

[0092] The sensor 301 is configured to measure a current tilt angle of the power tool 300, so that the power tool at least performs the following operations when the current tilt angle meets a first angle condition:

[0093] stopping rotation;

[0094] adjusting a configuration of a rotation direction mode to a second direction mode;

[0095] The rotation direction mode of the power tool in the working state is a first direction mode, and the first direction mode is different from the second direction mode.

[0096] In the embodiments of the present application, the +Z direction can be the opposite direction of the power tool head direction, and is parallel or overlapped with the output shaft direction. When the angle deviation occurs, the output shaft of the power tool (such as a drill) deviates from the initial (preset) direction. The initial direction can be set by a button, an app, a host computer, or the like.

[0097] In some possible implementations, the preset tilt angle can correspond to the initial direction. For example, when the initial direction is the gravity direction, the preset tilt angle can be 0°. When the initial direction forms an angle with the gravity direction, the preset tilt angle can be the angle.

[0098] In the embodiments of the present application, the current tilt angle of the power tool 300 can be the angle between the current tilt angle of the power tool and the preset tilt angle.

[0099] In some possible implementations, the current tilt angle of the power tool can be the angle between the head direction (or the opposite direction thereof) of the power tool and the gravity direction. For example, as shown in FIG. 1, when the preset tilt angle is set to 0°, it can be expected to screw or drill a screw into a horizontally placed workpiece (such as a wood board), at this time, the current tilt angle a and the current tilt angle can be the same. Alternatively, the preset tilt angle can also be set to any angle such as 30°, 45°, 60°, and the like, to achieve screwing or drilling a screw into a workpiece placed at an angle, perpendicular to the surface of the workpiece, at this time, the angle between the current tilt angle and the preset tilt angle is the current tilt angle a, so that the head direction (or the body) of the tool can be detected relative to the hole when the tool performs an operation on a workpiece placed in any direction, and the tool can continuously detect the angle deviation during the working process, and switch to the reverse state for manual / automatic backoff when the deviation is too large, to effectively prevent screwing or drilling at an angle.

[0100] In the embodiments of the present application, the sensor can be referred to as a six-axis sensor or the like, and the name is not limited herein. In some possible implementation manners, the sensor 301 can include at least one of a gyroscope and an accelerometer. For example, the sensor can be installed close to the head of the electric tool.

[0101] In some possible implementation manners, before the electric tool enters the working state, a preset screwing-in or drilling-in angle can be set, that is, a preset tilt angle is set. For example, when the trigger (or the start button) of the electric tool is pressed, the electric tool is normally operated, and in the case that the electric tool enters the working state, the screw or the drill hole starts to be punched into the workpiece, the executed part starts to be entered, the sensor 301 starts to work to obtain measurement data, the current tilt angle of the electric tool is obtained, and the electric tool can be controlled to stop or reverse according to the current tilt angle.

[0102] In some possible implementation manners, in the case that the trigger (or the start button) of the electric tool is pressed, the electric tool is normally operated, but does not enter the working state; or before the trigger (or the start button) of the electric tool is pressed, that is, before the electric tool is started, the sensor 301 can start to obtain measurement data, the current tilt angle of the electric tool is obtained, and the electric tool can be controlled to send a warning signal according to the current tilt angle. For example, when the current tilt angle meets a first angle condition, the warning light of the electric tool can be lit or flashed, or the buzzer of the electric tool can send a warning sound, that is, a warning signal is sent, so that the tilt of the electric tool can be detected before the electric tool enters the working state, that is, before the screw or the drill hole starts to be punched into the workpiece, and the customer can be reminded to adjust in time.

[0103] In some possible implementation manners, the first direction mode of the electric tool can include any one of the following: continuous forward rotation; intermittent forward rotation with any time interval between two forward rotations, that is, there is any time interval between two forward rotations; and reverse rotation for any time between two forward rotations, and the total time of forward rotation is greater than the total time of reverse rotation.

[0104] In some possible implementation manners, the second direction mode of the electric tool can include any one of the following: continuous reverse rotation; intermittent reverse rotation with any time interval between two reverse rotations, that is, there is any time interval between two reverse rotations; and forward rotation for any time between two reverse rotations, and the total time of reverse rotation is greater than the total time of forward rotation.

[0105] For example, if the first direction mode includes continuous forward rotation, and the second direction mode includes continuous reverse rotation. In this way, the embodiment of the present application can effectively prevent screwing or drilling skew and avoid workpiece damage by entering the forward rotation direction when the electric tool enters the working state, and immediately stopping rotation and switching the configuration to the reverse rotation direction when the angle offset meets the first angle condition.

[0106] In some possible implementation manners, the first angle condition can include that the tilt included angle is greater than or equal to a first angle threshold. The first angle threshold can be set according to actual needs.

[0107] For example, the current tilt included angle a meeting the first angle condition can include that the current tilt included angle a is greater than or equal to the first angle threshold. Then, the electric tool can be configured with the first anti-screwing or anti-drilling skew mode, and the configuration of the electric tool after the angle offset is related to the offset degree, for example, in the case that the current tilt included angle meets the first angle condition, the electric tool completing the task can include stopping rotation and adjusting the configuration of the rotation direction mode to the second direction mode. The anti-screwing or anti-drilling skew mode can also be other settings, which can be referred to the following embodiments.

[0108] In some possible implementation manners, the electric tool can include a mode selection button for providing a selection signal to control the start and stop of the anti-screwing or anti-drilling skew mode, to select whether to enter the anti-screwing or anti-drilling skew mode. For example, the mode selection button can be connected with the controller of the electric tool, when the button is not pressed, the selection signal is in a high resistance state, and when the button is pressed, the selection signal is 0, and the controller enters the anti-screwing or anti-drilling skew mode after receiving the 0 signal.

[0109] In this way, the embodiment of the present application can effectively prevent screwing or drilling skew by entering the working state of the electric tool, and immediately stopping rotation and switching the configuration of the rotation direction of the electric tool when the current tilt included angle of the electric tool meets the first angle condition. In addition, after the screwing or drilling skew occurs, the difficulty of adjusting the angle without backtracking is relatively large, and in the case of gypsum board and the like, direct adjustment can also cause damage, etc. By immediately stopping rotation and switching the configuration of the rotation direction of the electric tool, the electric tool can be reversed to back off, which can avoid workpiece damage caused by workpiece screwing or drilling skew, and improve user experience.

[0110] In an optional implementation manner, when the working current of the electric tool is greater than the no-load current, the electric tool enters the working state.

[0111] In some possible implementation manners, the determination condition of whether the electric tool enters the working state can be set according to actual needs, for example, the determination condition can be the working current of the electric tool.

[0112] For example, when I 工作 >I 空载 , the power tool enters the transition working state, and the sensor 301 starts to work and measure data, but is not limited thereto.

[0113] Thus, the embodiments of the present application can monitor the angle offset in real time during the process of the power tool entering the transition working state, such as screwing, to improve the effectiveness of the anti-twisting or anti-drilling.

[0114] In an optional embodiment, the control method further comprises:

[0115] When the first starting signal is acquired, the power tool is controlled to start rotating in the second direction mode according to the configuration of the rotating direction mode in the case that the power tool completes all the matters.

[0116] The power tool is further configured with a starting button 302 for generating and outputting the first starting signal.

[0117] In some possible implementations, the starting button (or trigger) 302 can be used to control the start and stop of the power tool.

[0118] Thus, the embodiments of the present application can achieve the workpiece backoff controlled by the user by controlling the power tool to start rotating in the second direction mode (such as reverse rotation) through the starting button. For example, the power tool stops rotating and completes the configuration of the second direction mode, the user can press the trigger, the power tool starts reverse rotation, and the power tool is controlled to backoff, which can achieve manual backoff, for example, the user controls the screw backoff. And after the user releases the trigger, that is, after the power tool stops rotating again, the power tool can adjust the configuration of the rotating direction mode to the first direction mode (such as forward rotation) again, so that when the user presses the trigger again, the power tool can start forward rotation again.

[0119] In an optional embodiment, in the case that the current inclined angle meets the first angle condition, the power tool further completes at least the following matters:

[0120] Starting rotating in the second direction mode automatically;

[0121] Switching back to the first direction mode rotating in the case that the power tool meets the reverse rotation stop condition.

[0122] Thus, the embodiments of the present application can automatically start rotating in the second direction mode, such as automatically switching reverse rotation, after the power tool completes the stop rotating and adjusts the configuration of the rotating direction mode to the second direction mode, which improves the work efficiency. And according to the reverse rotation stop condition, the first direction mode rotating can be automatically switched back.

[0123] In some possible implementations, the reversing can also be stopped at any time during the automatic reversing. For example, when the trigger is released, the power tool can be controlled to stop reversing, and the power tool can be configured again to rotate in the forward direction, so that the power tool can be started again to resume the forward rotation when the trigger is pressed again by the user.

[0124] In an optional embodiment, when the working current I 工作 of the power tool is greater than the no-load current I 空载 and less than a current threshold I 阈值 , the reversing stop condition comprises that the working current I 工作 of the power tool is reduced to a preset multiple of the no-load current I 空载 , or the power tool is backed up by a preset number of rotation turns.

[0125] And / or, when the working current of the power tool is greater than or equal to the current threshold, the reversing stop condition comprises that the working current of the power tool is reduced to the no-load current, or the power tool is backed up by a number of turns of rotation in the working state.

[0126] Wherein, the current threshold is greater than the no-load current.

[0127] In the embodiments of the present application, when I 空载 <I 工作 <I 阈值 , the power tool can be in a light load working state, for example, the power tool is performing a threaded tightening operation.

[0128] In some possible implementations, the preset multiple can be greater than 1, for example, 1.2. That is, the reversing stop condition is I 工作 = I 空载 × 1.2. In this way, by reducing the working current of the power tool to a preset multiple of the no-load current, it can be determined that the working current is close to the no-load current in the light load working state, and then the reversing and backing up are stopped, and the power tool can be automatically switched back to the forward rotation, which can reduce the re-tightening travel and improve the working efficiency.

[0129] In some possible implementations, the preset number of rotation turns can be set according to actual needs to reduce the re-tightening travel and improve the working efficiency while achieving reversing and backing up.

[0130] In the embodiments of the present application, when I 工作 ≥ I 阈值 , the power tool can be in a heavy load working state, for example, the power tool is performing a steel plate hole drilling and self-tapping operation. Taking a gypsum board as an example, once it is skewed, the hole is damaged, affecting the fastening effect, and the drill bit needs to be completely withdrawn and the hole needs to be drilled again.

[0131] In some possible implementations, the reverse stop condition is that I 工作 = I 空载 , or the number of turns that have been screwed in or drilled in (the number of turns of the electric tool in the positive direction after the electric tool enters the turning-in working state), so that the electric tool can be completely retracted, preventing damage to the workpiece and improving user experience.

[0132] The embodiment of the present application also provides a control method of an electric tool. FIG. 6 shows a flow diagram of another specific example of the control method of the electric tool in the embodiment of the present application. As shown in the figure, the control method can include the following steps:

[0133] S201: In a case where the electric tool enters a turning-in working state, acquiring a current inclination angle of the electric tool; the current inclination angle is an angle between a current inclination angle of the electric tool and a preset inclination angle; in the turning-in working state, a workpiece acted on by the electric tool is entered;

[0134] S202: In a case where the current inclination angle meets a second angle condition, controlling the electric tool to complete at least one of the following first matters:

[0135] generating a prompt signal;

[0136] reducing the rotating speed;

[0137] S203: In a case where the current inclination angle meets a third angle condition, controlling the electric tool to at least complete the following second matter:

[0138] stopping rotating;

[0139] adjusting a rotating direction mode of the electric tool to a second direction mode;

[0140] In the embodiment of the present application, the current inclination angle meeting the second angle condition includes that the current inclination angle is greater than a shake-prevention angle threshold and less than or equal to a second angle threshold.

[0141] The current inclination angle meeting the third angle condition includes that the current inclination angle is greater than the second angle threshold.

[0142] In the embodiment of the present application, the rotating direction mode of the electric tool in the turning-in working state is a first direction mode; the first direction mode is different from the second direction mode; the first direction mode includes continuous positive rotation; and the second direction mode includes continuous reverse rotation.

[0143] In the embodiment of the present application, the electric tool is configured with a sensor for measuring the current inclination angle of the electric tool.

[0144] In an optional embodiment, the control method further comprises:

[0145] In the case that the power tool completes all the second events, when the second starting signal is acquired, the power tool is controlled to start rotating in the second direction mode according to the configuration of the rotating direction mode.

[0146] The power tool is further configured with a starting button for generating and outputting the second starting signal.

[0147] In an optional embodiment, in the case that the current tilt angle satisfies a third angle condition, the power tool further completes at least the following second events:

[0148] automatically starting rotating in the second direction mode;

[0149] switching back to rotating in the first direction mode in the case that the power tool satisfies a reverse stop condition.

[0150] In an optional embodiment, when the working current of the power tool is greater than the no-load current and less than a current threshold, the reverse stop condition comprises that the working current of the power tool decreases to a preset multiple of the no-load current, or the power tool backtracks a preset number of rotations.

[0151] and / or, when the working current of the power tool is greater than or equal to the current threshold, the reverse stop condition comprises that the working current of the power tool decreases to the no-load current, or the power tool backtracks a number of rotations in the working state.

[0152] The current threshold is greater than the no-load current.

[0153] In the embodiments of the present application, the power tool generating a prompt signal can include at least one of the following: flashing of the illuminating lamp; sounding of an alarm. In this way, the user can be reminded or guided to adjust the tilt angle to reduce the angle deviation.

[0154] In the embodiments of the present application, the anti-shake angle threshold can be within a preset angle deviation range, for example, the preset angle deviation range can be 0° to a deviation value (such as 3°, 5°, 10°, etc., not enumerated). The power tool usually vibrates when screwing into or drilling into a workpiece, thereby causing normal tilt angle shaking. Therefore, by setting the anti-shake angle threshold, it can be distinguished whether it is shaking during normal work or abnormal angle deviation, thereby preventing false alarm and improving the accuracy of the angle deviation alarm. The anti-shake angle threshold and the second angle threshold can be set according to actual needs.

[0155] The terms and / or descriptions among the control methods of the power tools in various embodiments of the present application are consistent and can be referred to each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship, which will not be enumerated and described here.

[0156] Thus, the power tool of the embodiments of the present application can be configured with a second anti-twisting or anti-drilling mode, which is specifically set as: after the angle deviation occurs, in the case that the current inclination angle meets the second angle condition, the power tool completing the first matter can include generating a prompt signal and / or appropriately reducing the rotation speed; in the case that the current inclination angle meets the third angle condition, the power tool completing the second matter can include stopping rotation and adjusting the configuration of the rotation direction mode to the second direction mode. Thus, when 0 < a ≤ n° (the second angle threshold) is identified, a prompt signal can be generated and / or the rotation speed can be reduced to remind the user; when a > n° is identified, the power tool brakes, and can be automatically switched to the reverse configuration, manual / automatic fallback can be performed, which can effectively prevent twisting or drilling and avoid damage to the workpiece.

[0157] The embodiments of the present application also provide a control method of a power tool. FIG. 7 shows a flow diagram of another specific example of the control method of the power tool in the embodiments of the present application. As shown in the figure, the control method can include the following steps:

[0158] S301: In the case that the power tool enters a rotation-in working state, the current inclination angle of the power tool is obtained; the current inclination angle is the angle between the current inclination angle of the power tool and a preset inclination angle; in the rotation-in working state, the workpiece acted on by the power tool is entered;

[0159] S302: In the case that the current inclination angle meets a fourth angle condition, the power tool is controlled to at least complete the following third matter:

[0160] a prompt signal is generated;

[0161] S303: In the case that the current inclination angle meets a fifth angle condition, the power tool is controlled to at least complete the following fourth matter:

[0162] the rotation speed is reduced;

[0163] S304: In the case that the current inclination angle meets a sixth angle condition, the power tool is controlled to at least complete the following fifth matter:

[0164] the rotation is stopped;

[0165] the configuration of the rotation direction mode is adjusted to a second direction mode;

[0166] The fourth angle condition includes that the current tilt angle is greater than an anti-shake angle threshold and less than or equal to a third angle threshold.

[0167] The fifth angle condition includes that the current tilt angle is greater than the third angle threshold and less than or equal to a fourth angle threshold.

[0168] The sixth angle condition includes that the current tilt angle is greater than the fourth angle threshold; and the fourth angle threshold is greater than the third angle threshold.

[0169] The electric tool has a first direction mode in the turning-on working state, the first direction mode is different from the second direction mode, the first direction mode includes continuous forward rotation, and the second direction mode includes continuous reverse rotation.

[0170] The electric tool is provided with a sensor for measuring a current tilt angle of the electric tool.

[0171] In an optional embodiment, the control method further includes:

[0172] When a third starting signal is acquired, the electric tool is controlled to start turning in the second direction mode according to the configuration of the rotation direction mode, in the case that the electric tool completes all the fifth matters.

[0173] The electric tool is further provided with a starting button for generating and outputting the third starting signal.

[0174] In an optional embodiment, in the case that the current tilt angle meets the sixth angle condition, the electric tool further completes at least the following fifth matters:

[0175] The electric tool is automatically started to turn in the second direction mode.

[0176] The electric tool is switched back to the first direction mode to turn, in the case that the electric tool meets a reverse stop condition.

[0177] In an optional embodiment, when the working current of the electric tool is greater than an idle current and less than a current threshold, the reverse stop condition includes that the working current of the electric tool is reduced to a preset multiple of the idle current, or the electric tool is backed up by a preset number of rotation turns.

[0178] And / or, when the working current of the electric tool is greater than or equal to the current threshold, the reverse stop condition includes that the working current of the electric tool is reduced to the idle current, or the electric tool is backed up by a number of turns in the turning-on working state.

[0179] The current threshold is greater than the no-load current.

[0180] In the embodiments of the present application, the third angle threshold and the fourth angle threshold can be set according to actual needs. The fourth angle threshold can be equal to the second angle threshold, or can not be equal to the second angle threshold, which can be determined according to actual use scenarios.

[0181] The terms and / or descriptions between the control methods of the power tools in various embodiments of the present application are consistent and can be mutually referenced. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship, which will not be enumerated and elaborated here.

[0182] In this way, the power tool of the embodiments of the present application can configure a third anti-twisting or anti-drilling mode, and the specific settings are as follows: after the angle deviation occurs, in the case that the current inclination angle satisfies the fourth angle condition, the power tool completing the third matter can include generating a prompt signal; in the case that the current inclination angle satisfies the fifth angle condition, the power tool completing the fourth matter can include appropriately reducing the rotation speed; and in the case that the current inclination angle satisfies the sixth angle condition, the power tool completing the fifth matter can include stopping rotation and configuring the rotation direction mode as the second direction mode. Thus, different situations of generating a prompt signal and reducing the rotation speed can be further refined to more effectively remind the user; and when the current inclination angle a is greater than the fourth angle threshold, the power tool brakes and can automatically switch to the reverse configuration for manual / automatic fallback, which can effectively prevent twisting or drilling and avoid damage to the workpiece.

[0183] In the embodiments of the present application, each angle threshold, for example, the first angle threshold, the second angle threshold, the third angle threshold, the fourth angle threshold, etc., can be a fixed value or can be within an angle deviation range.

[0184] The embodiments of the present application also provide a power tool, and FIG. 8 shows a principle block diagram of a specific example of the power tool in the embodiments of the present application. As shown in the figure, the power tool includes:

[0185] a sensor 301 for measuring the current inclination angle of the power tool;

[0186] a start button 302 for generating and outputting a first start signal, a second start signal, and / or a third start signal; and

[0187] a controller 303; the controller includes a processor and a memory;

[0188] the memory for storing instructions;

[0189] the processor for executing the instructions to implement at least one of the control methods of the power tool as described in the above embodiments.

[0190] For example, the controller 303 can be used to control at least one of the following: the start and stop of the rotation of the power tool; the configuration of the rotation direction mode; the entry of any one of the anti-screw or anti-drill modes; the control of the rotation speed; the counting of the rotation number; the control of the generation of the prompt signal; the sampling of the current tilt angle (the angle offset) (for example, the current tilt angle a in the Z direction is sampled 5 times per second). Those skilled in the art should understand that the power tool can complete various matters through the controller, which will not be described here.

[0191] FIG. 9 shows a schematic diagram of a principle block diagram of a specific example of the controller in the embodiments of the present application. As shown in the figure, the controller can include a processor and a memory, the processor is connected with the memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize at least one of the control methods of the power tool and / or other desired functions as described in the above embodiments.

[0192] The processor can be a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like; in another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), for example, an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the hardware circuit configuration, which can be understood as a process in which the processor loads instructions to implement the functions described by the instructions. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like. The controller can be implemented in the form of software called by the processor, or in the form of hardware circuit, or partially in the form of software called by the processor and partially in the form of hardware circuit.

[0193] The memory can include one or more computer program products, which can include various forms of computer readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may, for example, include random access memory (RAM), cache memory, and the like. The non-volatile memory may, for example, include read-only memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions can be stored on the computer readable storage medium, and the processor can run the program instructions to implement the functions of the controller and / or other desired functions.

[0194] The controller can further include a network interface, a display and an input device connected through the system bus. The network interface can be used to communicate with an external terminal through a network. The display can be a liquid crystal display or an electronic ink display. The input device can be a touch layer overlaid on the display, or a key, a trackball, or a touchpad, or an external keyboard, a touchpad, a mouse, etc.

[0195] The specification provides method operation steps as in the embodiments or flowcharts, but more or less operation steps can be included based on routine or non-creative labor. The order of steps listed in the embodiments is only one of the many execution orders of the steps, and does not represent the only execution order. In actual device, system or server product execution, the method order shown in the embodiments can be executed in sequence or in parallel (such as parallel processor or multi-threaded processing environment).

[0196] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations encompassed by the claims. Various modifications and changes can also be made on the basis of the above embodiments without departing from the scope of the disclosure. Similarly, any combination of the technical features of the above embodiments can also be made to form additional embodiments of the present application that can not have been explicitly described. Therefore, the above embodiments only express several implementation manners of the present application, and do not limit the protection scope of the patent of the present application.

Claims

1. A control method of a power tool, characterized by, The control method comprises: In the case where the electric tool enters the working state, the current inclination angle of the electric tool is obtained; the current inclination angle is the included angle between the current inclination angle of the electric tool and the preset inclination angle; the executed member acted on by the electric tool is entered in the working state; In the case where the current inclination angle meets the first angle condition, the electric tool is controlled to at least complete the following matters: Stop; Adjust the configuration of the rotation direction mode to the second direction mode; Wherein, the current inclination angle meeting the first angle condition includes that the current inclination angle is greater than or equal to the first angle threshold value; The rotation direction mode of the electric tool in the working state is the first direction mode; the first direction mode is different from the second direction mode; the first direction mode includes continuous forward rotation; the second direction mode includes continuous reverse rotation; Wherein, the electric tool is configured with a sensor for measuring the current inclination angle of the electric tool.

2. The control method according to claim 1, characterized by, The control method further comprises: In the case where the electric tool completes all the matters, when a first start signal is obtained, the electric tool is controlled to start rotating according to the configuration of the rotation direction mode in the second direction mode; Wherein, the electric tool is also configured with a start button for generating and outputting the first start signal.

3. The control method according to claim 1, characterized by, In the case where the current inclination angle meets the first angle condition, the electric tool also at least completes the following matters: Start rotating automatically in the second direction mode; In the case where the electric tool meets the reverse stop condition, switch back to the first direction mode to rotate.

4. The power tool of claim 3, wherein, When the working current of the electric tool is greater than the no-load current and less than the current threshold value, the reverse stop condition includes that the working current of the electric tool is reduced to a preset multiple of the no-load current, or the electric tool is backed up by a preset number of rotations; And / or, when the working current of the electric tool is greater than or equal to the current threshold value, the reverse stop condition includes that the working current of the electric tool is reduced to the no-load current, or the electric tool is backed up by the number of rotations in the working state; Wherein, the current threshold value is greater than the no-load current.

5. A control method of a power tool, characterized by, The control method comprises: In the case where the electric tool enters the working state, the current inclination angle of the electric tool is obtained; the current inclination angle is the included angle between the current inclination angle of the electric tool and the preset inclination angle; the executed member acted on by the electric tool is entered in the working state; In the case where the current inclination angle meets the second angle condition, the electric tool is controlled to complete at least one of the following first matters: Generate a prompt signal; Reduce the rotation speed; In the case where the current inclination angle meets the third angle condition, the electric tool is controlled to at least complete the following second matters: Stop; Adjust the configuration of the rotation direction mode to the second direction mode; Wherein, the current inclination angle meeting the second angle condition includes that the current inclination angle is greater than the anti-shake angle threshold value and less than or equal to the second angle threshold value; The current tilt included angle satisfies a third angle condition, which includes that the current tilt included angle is greater than the second angle threshold value; The electric tool is configured with a sensor for measuring a current tilt angle of the electric tool. The control method further includes:

6. The control method according to claim 5, characterized by In a case where the electric tool completes all the second items, when a second start signal is acquired, the electric tool is controlled to start rotating according to the second direction mode according to the configuration of the rotating direction mode; The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items:

7. The control method according to claim 5, characterized by, The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal.

8. The control method according to claim 5, characterized by, In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items:

9. The power tool of claim 8, wherein, The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal.

10. An electric power tool characterized by comprising: In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case where the current tilt included angle satisfies a third angle condition, the electric tool further completes at least the following second items: The electric tool is further configured with a start button for generating and outputting the second start signal. In a case

Images