Miter saw, method for displaying cutting angle of miter saw, and method for controlling miter saw

Abstract

The miter saw comprises a machine base, a workbench, an inclining assembly, a driving assembly, a saw blade and a protection assembly, the workbench is rotatably installed on the machine base, the rotation axis of the workbench extends in the longitudinal direction, the inclining assembly is rotatably installed on the workbench, the rotation axis of the inclining assembly extends in the transverse direction, and the longitudinal direction is perpendicular to the transverse direction; the driving assembly is rotatably installed on the inclination assembly and comprises a motor and an output shaft driven by the motor, the saw blade is installed on the output shaft, the miter saw further comprises an angle sensor, a controller and a display screen, the controller is electrically connected with the angle sensor and the display screen, and the angle sensor is installed on the inclination assembly or the driving assembly. And the controller is configured to detect a first angle of longitudinal rotation of the workbench, the inclination assembly, the driving assembly and the saw blade relative to the machine base and a second angle of transverse rotation of the inclination assembly, the driving assembly and the saw blade relative to the workbench, receives a detection signal of the angle sensor and controls the display screen to display the first angle and the second angle.

Description

Technical Field

[0001] This application relates to the field of cutting, and in particular to a bevel saw, a method for displaying the cutting angle of the bevel saw, and a method for controlling the bevel saw. Background Technology

[0002] A miter saw is a power tool used for precise cutting of materials such as wood, metal, and plastic. It allows for flexible adjustment of the cutting angle to achieve high-precision cuts and is widely used in metalworking and woodworking. The cutting angle of a miter saw mainly consists of a first angle of longitudinal rotation and a second angle of transverse rotation. The specific angles are indicated by markings on the miter saw. However, due to the large size of the miter saw, the markings for the first angle are located on the base, far from the user, and the second markings are located on the rear of the machine and are also difficult to observe. This necessitates changing viewing positions when adjusting the miter angle, which is inconvenient and results in a poor user experience. Summary of the Invention

[0003] This application provides a bevel saw, a method for displaying the cutting angle of the bevel saw, and a method for controlling the bevel saw, which allows users to intuitively and easily obtain the cutting angle.

[0004] This application provides a miter saw, including a base, a worktable, a tilting assembly, a drive assembly, a saw blade, and a protective assembly. The worktable is rotatably mounted on the base with its rotation axis extending longitudinally. The tilting assembly is rotatably mounted on the worktable with its rotation axis extending transversely, the longitudinal direction being perpendicular to the transverse direction. The drive assembly is rotatably mounted on the tilting assembly and includes a motor and an output shaft driven by the motor. The saw blade is mounted on the output shaft. The miter saw also includes an angle sensor, a controller, and a display screen. The controller is electrically connected to the angle sensor and the display screen, respectively. The angle sensor is mounted on the tilting assembly or the drive assembly and is configured to detect a first angle of longitudinal rotation of the worktable, tilting assembly, drive assembly, and saw blade relative to the base and a second angle of transverse rotation of the tilting assembly, drive assembly, and saw blade relative to the worktable. The controller receives the detection signal from the angle sensor and controls the display screen to display the first angle and the second angle.

[0005] Furthermore, the oblique cutting saw also includes an input element and a prompting element. The input element is configured to allow the user to input a target cutting angle, which includes a first target angle for longitudinal rotation and a second target angle for transverse rotation. The prompting element issues prompts when the first angle approaches the first target angle and when the second angle approaches the second target angle.

[0006] Furthermore, the miter saw includes a first rotary motor, which includes a first motor housing, a first stator, and a first rotor. The first motor housing is fixed to the machine base, and the first rotor is connected to the worktable. The controller receives a first target angle input by the user and controls the first rotary motor to drive the worktable, tilting assembly, drive assembly, and saw blade to rotate until the first angle is equal to the first target angle.

[0007] Furthermore, the miter saw includes a second rotary motor, which includes a second motor housing, a second stator, and a second rotor. The second motor housing is fixed to the worktable, and the second rotor is connected to the tilting assembly. The controller receives a second target angle input by the user and controls the second rotary motor to drive the tilting assembly, the drive assembly, and the saw blade to rotate until the second angle is equal to the second target angle.

[0008] Furthermore, the drive assembly includes a housing, a drive motor disposed within the housing, and a transmission assembly, wherein the transmission assembly transmits the power of the drive motor to the saw blade, and the display screen is disposed within the housing.

[0009] Furthermore, the housing includes a handle, and the display screen is disposed adjacent to the handle.

[0010] Furthermore, the angle sensor includes at least one of a gyroscope, an accelerometer, and a magnetometer.

[0011] On the other hand, this application also provides a method for displaying the cutting angle of a bevel saw, for use in the bevel saw as described above. The display method includes: receiving a zeroing command to zero the angle; receiving a first target angle and a second target angle input by a user; detecting and displaying a first angle of longitudinal rotation of the saw blade, and issuing a reminder when the first angle approaches the first target angle, until the first angle of longitudinal rotation of the saw blade equals the first target angle; detecting and displaying a second angle of transverse rotation of the saw blade, and issuing a reminder when the second angle approaches the second target angle, until the second angle of transverse rotation of the saw blade equals the second target angle.

[0012] Furthermore, when the difference between the first angle and the first target angle is less than 10°, the oblique cutting saw emits a beeping sound, and the rapidity of the beeping sound is proportional to the magnitude of the difference; when the first angle exceeds the target angle, the beeping sound continues and the rapidity decreases.

[0013] In another aspect, this application also provides a control method for a bevel saw, used in the bevel saw as described above. The control method includes: receiving a first target angle and a second target angle input by a user; controlling a first rotary motor to drive the worktable, tilting assembly, driving assembly, and saw blade to rotate longitudinally by the first target angle; controlling a second rotary motor to drive the tilting assembly, driving assembly, and saw blade to rotate laterally by the second target angle; and outputting a reminder that the angle adjustment is complete.

[0014] The bevel saw of this application can intuitively display the cutting angle on the display screen, which is convenient for users to adjust quickly and improves the user's operating experience. Attached Figure Description

[0015] Figure 1 This is a perspective view of a bevel saw according to an embodiment of this application.

[0016] Figure 2 yes Figure 1 The diagram shows a three-dimensional view of the oblique cut saw from another perspective, in which the moving guard of the guard assembly is not shown.

[0017] Figure 3 yes Figure 1 The diagram shows a three-dimensional representation of the drive assembly and saw blade of the miter saw.

[0018] Figure 4 yes Figure 3 The diagram shows a three-dimensional representation of the drive assembly and saw blade of a miter saw, with part of the housing not shown.

[0019] Figure 5 yes Figure 1 The diagram shows the circuit connection diagram of the controller, angle sensor, and display screen of the bevel saw.

[0020] Figure 6 yes Figure 1 The diagram shown illustrates a bevel saw cutting at a specific angle.

[0021] Figure 7 yes Figure 1 The diagram shows a bevel saw cutting at a different angle.

[0022] Figure 8 This is a perspective view of a bevel saw according to another embodiment of this application. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application.

[0024] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. “A plurality” or “several” indicates two or more. Unless otherwise stated, the terms “front,” “rear,” “lower,” and / or “upper,” and similar terms are for ease of description only and are not limited to a location or spatial orientation. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising,” encompass the elements or objects listed following “comprising,” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0025] Please combine Figure 1 and Figure 2 This application provides a miter saw 100, which includes a base 10, a worktable 20, a tilting assembly 30, a drive assembly 40, a saw blade 50, and a protective assembly 60. The worktable 20 is rotatably mounted on the base 10 with its rotation axis extending longitudinally along the Y direction. The tilting assembly 30 is rotatably mounted on the worktable 20 with its rotation axis extending transversely along the X direction. The longitudinal direction Y is perpendicular to the transverse direction X. The drive assembly 40 is rotatably mounted on the tilting assembly 30, and the rotation axis of the drive assembly is perpendicular to both the longitudinal direction Y and the transverse direction X. The drive assembly 40 includes a housing 41, a drive motor 42 disposed within the housing 41, a transmission assembly 43, and an output shaft (not shown) protruding from the housing. The transmission assembly 43 transmits the power of the drive motor 42 to the saw blade 50, and the saw blade 50 is mounted on the output shaft. The protective assembly 60 includes a fixed protective cover 61 and a movable protective cover 62. When not cutting, the movable protective cover 62, together with the fixed protective cover 61, shields the saw blade 50. During cutting, it rotates to partially expose the saw blade 50 for cutting the workpiece. In some embodiments, a transmission assembly may be omitted, and the drive motor may directly drive the output shaft.

[0026] Please refer to section 3 to... Figure 5The oblique cutting saw 100 further includes an angle sensor 70, a controller 80, and a display screen 90. The controller 80 is electrically connected to the angle sensor 70 and the display screen 90. The angle sensor 70 is mounted on the drive assembly 40 (specifically, on the housing 41) and is configured to detect a first angle of rotation of the worktable 20, the tilting assembly 30, the drive assembly 40, and the saw blade 50 relative to the base 10 along the longitudinal Y direction, and a second angle of rotation of the tilting assembly 30, the drive assembly 40, and the saw blade 50 relative to the worktable 20 along the transverse X direction. The controller 80 receives the detection signal from the angle sensor and controls the display screen 90 to display the angles for easy viewing by the user, eliminating the hassle of repeated observation and improving cutting efficiency. The controller 80 is also configured to control the motor start / stop and speed. In other embodiments, the angle sensor 70 may also be located on the tilting assembly.

[0027] The angle sensor 70 is a sensor capable of detecting angles, such as at least one of a gyroscope, accelerometer, and magnetometer.

[0028] Optionally, the miter saw 100 further includes an input element (not shown) and a prompting element 71. The input element is configured for the user to input a target cutting angle, which includes a first target angle (corresponding to the first angle) rotated along the longitudinal direction Y and a second target angle (corresponding to the second angle) rotated along the transverse direction X. The prompting element 71 issues prompts when the saw blade approaches the first and second target angles, respectively. The input element may be, for example, a button, or it may be directly integrated into the display screen 90 (for example, the display screen 90 is a touch screen); the prompting element 71 may be, for example, an acoustic element or an optical element, or both.

[0029] In this embodiment, the prompting element 71 is a buzzer. When the difference between the longitudinal rotation angle and the first target angle is no greater than 10° (it can also be set to 5°, 8°, etc., depending on the requirements), the buzzer emits a buzzing sound. The closer to the first target angle, the more rapid the buzzing sound; the farther away from the first target angle, the less rapid the buzzing sound. After the first target angle is adjusted to the correct position, the user can operate the input element to stop the buzzing sound. The buzzer is used to indicate the degree of proximity to the second target angle. Similarly, when rotating along the horizontal X direction, the buzzer works in a similar manner. Figure 6 and Figure 7 Two different target cutting angles are shown.

[0030] Preferably, the display screen 70 is a touch screen, and the input element is integrated into the display screen 70. Combined with... Figure 3 and Figure 4The housing 41 includes a main housing 411 and a handle 412. The main housing 411 houses the motor 42 and the transmission assembly 43. The handle 412 is for the user to hold, so that the user can press down on the drive assembly 42 and the saw blade 50 to complete the cutting action. The display screen 70 is mounted on the main housing 411 and is arranged adjacent to the handle 412, so that the user can directly observe the angle and operate the touch screen.

[0031] Please combine Figure 8 Preferably, the miter saw 100 includes a first rotary motor 31, which includes a first motor housing 311, a first stator (not shown), and a first rotor 312. The first motor housing 311 is fixed to the base 10, and the first rotor 312 is connected to the worktable 20, enabling the first rotor 312 to drive the worktable 20, the tilting assembly 30, the drive assembly 40, and the saw blade 50. The controller 80 is configured to receive a first target angle input by the user and control the first rotary motor to drive the tilting assembly 30, the drive assembly 40, and the saw blade 50 to rotate by the first target angle. Optionally, the connection between the first rotor 312 and the worktable 20 can be direct or indirect (with a transmission mechanism in between).

[0032] The miter saw includes a second rotary motor 32, which comprises a second motor housing 321, a second stator (not shown), and a second rotor 322. The second motor housing 321 is fixed to the worktable 20, and the second rotor 322 is connected to the tilting assembly 30. The controller 80 receives a second target angle input by the user and controls the second rotary motor 32 to drive the tilting assembly 30, the drive assembly 40, and the saw blade 50 to rotate by the second target angle. Optionally, the connection between the second rotor 322 and the tilting assembly 30 can be direct or indirect (with a transmission mechanism in between).

[0033] Thus, the user inputs the target angle (including the first target angle and the second target angle) and issues a control command. The controller directly controls the first and second rotary motors to rotate to the first and second target angles. The miter saw can automatically adjust the cutting angle. After adjustment, the user holds the handle 412 and presses down, causing the drive assembly 40 and the saw blade 50 to rotate downwards relative to the tilting assembly, thus achieving the cutting action. This makes the user's cutting action extremely simple. It should be noted that, for safety reasons, the cutting action must be performed manually by the user, rather than using automated control.

[0034] On the other hand, this application also provides a method for displaying the cutting angle of a bevel saw, used for the bevel saw of the foregoing embodiments, the display method comprising:

[0035] Receive the zeroing command and zero the angle;

[0036] Receive the user's input of the first target angle and the second target angle;

[0037] The saw blade rotates at a first angle along the longitudinal direction by an angle sensor. When the first angle approaches the first target angle, an alert is issued until the angle of rotation of the saw blade along the longitudinal direction equals the first target angle.

[0038] The saw blade rotates at a second angle along the longitudinal direction using an angle sensor. When the second angle approaches the second target angle, an alert is issued until the saw blade rotates at an angle along the lateral direction equal to the second target angle.

[0039] The step of receiving the zeroing command can be omitted; the user simply adjusts the diagonal saw to its initial state, thus achieving zeroing the angle. Depending on actual needs, the above steps can be adjusted appropriately, such as swapping the rotation order of the first and second target angles.

[0040] Once the first target angle is reached, the reminder can stop automatically or be stopped manually by the user. The reminder can be an audio reminder, a visual reminder, or an audio-visual reminder.

[0041] Optionally, when the difference between the first angle and the first target angle is no greater than 10°, the oblique cutting saw emits a beeping sound, and the rapidity of the beeping sound is proportional to the magnitude of the difference; when the first angle exceeds the target angle, the beeping sound continues and the rapidity decreases.

[0042] In this embodiment, the range of the first target angle is 0° to 360°, and the range of the second target angle is -45° to 45°. In other embodiments, the range of the first target angle and the range of the second target angle may be expanded or reduced.

[0043] Furthermore, this application also provides a control method for a bevel saw, used in the bevel saw of the aforementioned embodiments, the control method comprising:

[0044] Receive the user's input of the first target angle and the second target angle;

[0045] The first target angle for controlling the rotation of the worktable, tilting assembly, drive assembly, and saw blade along the longitudinal Y direction;

[0046] Control the tilting assembly, drive assembly, and saw blade to rotate at a second target angle along the transverse X direction;

[0047] A notification indicating that the output angle adjustment is complete.

[0048] The above steps can be adjusted as needed; for example, the rotation sequence of the first target angle and the second target angle can be interchanged. Optionally, the first target angle can be adjusted by controlling the first and second rotary motors through the controller 80.

[0049] Optionally, the reminder may be, for example, an audio reminder, a visual reminder, or an audio-visual reminder. Optionally, the first target angle and the second target angle may be input via an input element (such as a button or touchscreen).

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A miter saw, comprising a base, a table, a tilt assembly, a drive assembly, a blade and a guard assembly, the table is rotatably mounted on the base and the rotation axis extends in a longitudinal direction, the tilt assembly is rotatably mounted on the table and the rotation axis extends in a transverse direction, the longitudinal direction is perpendicular to the transverse direction, the drive assembly is rotatably mounted on the tilt assembly, the drive assembly comprises a motor and an output shaft driven by the motor, the blade is mounted on the output shaft, characterized in that, the miter saw further comprises an angle sensor, a controller and a display screen, the controller is electrically connected with the angle sensor and the display screen respectively, the angle sensor is mounted on the tilt assembly or the drive assembly and is configured to detect a first angle of the table, the tilt assembly, the drive assembly and the blade relative to the base in the longitudinal direction and a second angle of the tilt assembly, the drive assembly and the blade relative to the table in the transverse direction, the controller receives the detection signal of the angle sensor and controls the display screen to display the first angle and the second angle. The miter saw further comprises an input element and a prompt element, the input element is configured to receive a target cutting angle input by a user, the target cutting angle comprises a first target angle of rotation in the longitudinal direction and a second target angle of rotation in the transverse direction, the prompt element gives a prompt when the first angle approaches the first target angle and when the second angle approaches the second target angle respectively.

2. The miter saw of claim 1, wherein, The miter saw comprises a first rotary motor, the first rotary motor comprises a first motor housing, a first stator and a first rotor, the first motor housing is fixed to the base, the first rotor is connected to the table.

3. The miter saw of claim 1, wherein, The controller receives the first target angle input by the user and controls the first rotary motor to drive the table, the tilt assembly, the drive assembly and the blade to rotate until the first angle is equal to the first target angle. The miter saw comprises a second rotary motor, the second rotary motor comprises a second motor housing, a second stator and a second rotor, the second motor housing is fixed to the table, the second rotor is connected to the tilt assembly.

4. The miter saw of claim 3, wherein, The controller receives the second target angle input by the user and controls the second rotary motor to drive the tilt assembly, the drive assembly and the blade to rotate until the second angle is equal to the second target angle. The drive assembly comprises a housing, a drive motor arranged in the housing and a transmission assembly, the transmission assembly transmits the power of the drive motor to the blade, the display screen is arranged in the housing.

5. The miter saw of any of claims 1-4, wherein, The housing comprises a handle, the display screen is arranged adjacent to the handle.

6. The miter saw of claim 5, wherein, The angle sensor comprises at least one of a gyroscope, an accelerometer and a magnetometer.

7. The miter saw of claim 1, wherein, The display method comprises:

8. A method of displaying a cutting angle of a miter saw, for the miter saw as claimed in claim 1, characterized by, receiving a zeroing instruction to zero the angle; receiving the first target angle and the second target angle input by the user; detecting the first angle of the blade in the longitudinal direction and displaying, giving a prompt when the first angle approaches the first target angle, until the first angle of the blade in the longitudinal direction is equal to the first target angle; detecting the second angle of the blade in the transverse direction and displaying, giving a prompt when the second angle approaches the second target angle, until the second angle of the blade in the transverse direction is equal to the second target angle. ​ 9. The display method according to claim 8, wherein When the difference between the first angle and the first target angle is less than 10°, the miter saw emits a buzzing sound, and the degree of urgency of the buzzing sound is directly proportional to the size of the difference; When the first angle exceeds the target angle, the buzzing sound continues and the degree of urgency decreases.

10. A control method of a miter saw, for the miter saw as claimed in claim 4, characterized by, The control method comprises: receiving a first target angle and a second target angle input by a user; controlling the first rotary motor to drive the workbench, the tilting assembly, the driving assembly and the saw blade to rotate in the longitudinal direction by the first target angle; controlling the second rotary motor to drive the tilting assembly, the driving assembly and the saw blade to rotate in the transverse direction by the second target angle; outputting a reminder that the angle adjustment is completed.

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