Automatic blade opening device for circular saw blade

Abstract

The application provides a circular saw blade automatic sharpening device, and belongs to the technical field of grinding. The existing circular saw blade sharpening device needs to be manually centered, and has the problem of low efficiency. The circular saw blade automatic sharpening device comprises a rack, a clamp assembly for clamping a circular saw blade, a grinding assembly for grinding a cutter head of the circular saw blade, a control circuit and a sensing assembly for detecting whether the grinding wheel rotates; the control circuit first controls the saw blade driving motor to drive the circular saw blade to rotate, controls the first servo to drive the grinding wheel to move towards the cutter head of the circular saw blade until the grinding wheel contacts the cutter head, and the circular saw blade drives the grinding wheel to rotate; the control circuit records the parameters of the first servo motor according to the information that the sensing assembly detects that the grinding wheel rotates, and calibrates the initial position at which the grinding wheel contacts the cutter head of the circular saw blade. The circular saw blade automatic sharpening device realizes automatic contact and alignment of the grinding wheel and the cutter head, and improves the processing efficiency and the processing precision of the circular saw blade automatic sharpening device.

Description

Technical Field

[0001] This invention belongs to the field of grinding technology and relates to a sharpening device, particularly an automatic sharpening device for circular saw blades. Background Technology

[0002] A circular saw blade is a rotary cutting tool widely used for cutting materials such as wood, metal, and stone. It typically consists of a base and multiple cutting edges (tooth edges) distributed along the outer edge of the base. The geometric accuracy of the cutting edges, especially the consistency of the cutting edge width, directly affects the cutting stability, cutting quality, and service life of the saw blade.

[0003] In the actual processing of circular saw blades, unevenness often exists on the sides and outer surfaces due to factors such as heat treatment deformation of the base material, release of welding stress, and deviations in the machining accuracy of the saw head. Side sharpening (grinding the sides of the saw head) and outer surface sharpening (grinding the outer end face of the saw head) are key processes for improving the consistency of the saw head width and the diameter of the outer end face.

[0004] There is a considerable amount of literature on side-sharpening devices for circular saw blades. For example, Chinese patent literature describes an improved double-sided automatic sharpening device for diamond saw blades (CN201848730U), which uses a weight to pull the grinding wheels, with the two grinding wheels clamping the cutting edge of the diamond saw blade for grinding. Although this technical solution achieves automatic sharpening, the grinding amount is difficult to control, resulting in poor consistency in the blade width of different circular saw blades.

[0005] Subsequently, a side-sharpening mechanism for diamond sharpening machines (CN213673190U) was proposed. The grinding wheel movement is driven by a servo motor. When changing to a different thickness of cutting head, the two servo motors can first adjust the relative position of the two grinding wheels, then re-align them before sharpening the cutting head. This alignment operation is performed manually, meaning the servo motors are manually controlled to drive the grinding wheel slowly, and the grinding wheel or circular saw blade is manually rotated to ensure it just makes contact with the cutting head. This alignment operation suffers from low efficiency and requires a high level of skill from the operator. Summary of the Invention

[0006] This invention proposes an automatic sharpening device for circular saw blades. The technical problem to be solved by this invention is how to improve the contact efficiency between the grinding wheel and the blade head during the grinding and sharpening process of the circular saw blade head.

[0007] The technical problem to be solved by the present invention can be achieved by the following technical solution: an automatic sharpening device for circular saw blades includes a frame, a clamping assembly for clamping the circular saw blades, and a grinding assembly for grinding the circular saw blade tips; The clamping assembly includes a saw blade drive motor, a saw blade mounting shaft, and a saw blade clamp. The housing of the saw blade drive motor is fixed on the frame. The saw blade mounting shaft is rotatably connected to the frame. One end of the saw blade mounting shaft is connected to the main shaft of the saw blade drive motor. The circular saw blade can be fixedly mounted on the other end of the saw blade mounting shaft through the saw blade clamp. The grinding assembly includes a grinding wheel moving base, a grinding wheel drive motor, a grinding wheel mounting shaft, and a grinding wheel. The housing of the grinding wheel drive motor is fixed on the grinding wheel moving base. The grinding wheel mounting shaft is rotatably connected to the grinding wheel moving base. One end of the grinding wheel mounting shaft is connected to the main shaft of the grinding wheel drive motor. The grinding wheel is fixedly mounted on the other end of the grinding wheel mounting shaft. The grinding wheel moving seat is connected to the frame through a first linear guide assembly. A first servo motor is installed on the frame. The spindle of the first servo motor is connected to the grinding wheel moving seat through a first ball screw. Controlling the first servo motor can make the grinding wheel surface approach or move away from the cutting head of the circular saw blade. The automatic sharpening device for circular saw blades is characterized by further including a control circuit and a sensing component for detecting whether the grinding wheel is rotating. The sensing component includes an electronic sensing element; the electronic sensing element, saw blade drive motor, grinding wheel drive motor and first servo motor of the sensing component are all electrically connected to the control circuit. The control circuit first controls the saw blade drive motor to drive the circular saw blade to rotate, and controls the first servo drive grinding wheel to move closer to the circular saw blade head until the grinding wheel contacts the circular saw blade head, and the circular saw blade drives the grinding wheel to rotate; the control circuit synchronously records the parameters of the first servo motor based on the information of the grinding wheel rotation detected by the sensor component and marks it as the initial position of the grinding wheel contacting the circular saw blade head.

[0008] Compared with existing technologies, this automatic circular saw blade sharpening device determines the initial contact position between the grinding wheel and the side of the circular saw blade by driving the circular saw blade to rotate and by the phenomenon that the grinding wheel will inevitably rotate when the circular saw blade head contacts the grinding wheel; it realizes automatic contact and blade alignment between the grinding wheel and the blade head, which significantly improves the contact and blade alignment efficiency and improves the consistency of contact and blade alignment accuracy.

[0009] After calibrating the initial contact position between the grinding wheel and the circular saw blade head, the grinding mode can be flexibly adjusted according to the actual situation, such as the grinding time setting and the grinding stroke setting, to improve the processing efficiency and processing accuracy of the automatic sharpening device for the circular saw blade.

[0010] In the above-mentioned automatic circular saw blade sharpening device, the electronic sensing element is an angular displacement sensor, and the housing of the angular displacement sensor is fixed on the grinding wheel moving seat; the shaft of the angular displacement sensor is connected to the main shaft of the grinding wheel drive motor, or the shaft of the angular displacement sensor is connected to the grinding wheel mounting shaft.

[0011] In the aforementioned automatic circular saw blade sharpening device, the sensing component includes a photoelectric sensor and a shielding disc. The shielding disc is fixedly connected to the grinding wheel mounting shaft, and the photoelectric sensor is fixed on the grinding wheel moving seat. The shielding disc has multiple circumferentially spaced light-transmitting holes and light-shielding parts. When the light emitted by the photoelectric sensor switches between the light-shielding parts and the light-transmitting holes, the photoelectric sensor will generate different signals.

[0012] In the above-mentioned automatic circular saw blade sharpening device, the first ball screw and the grinding wheel moving seat are connected by a pressure sensor. The pressure sensor detects the magnitude of the force between the grinding wheel and the circular saw blade head during the grinding process. The pressure sensor is electrically connected to the control circuit, and the control circuit can control whether the spindle of the first servo motor rotates according to the pressure detected by the pressure sensor.

[0013] In the above-mentioned automatic circular saw blade sharpening device, the frame includes a fixed frame and a first movable seat; the first movable seat is connected to the fixed frame through a second linear guide assembly, a second servo motor is installed on the fixed frame, and the spindle of the second servo motor is connected to the first movable seat through a second ball screw; the clamp assembly is installed on the first movable seat.

[0014] In the aforementioned automatic circular saw blade sharpening device, a grinding assembly for grinding the outer circular surface of the circular saw blade head is also installed on the first movable seat.

[0015] In the above-mentioned automatic circular saw blade sharpening device, the frame further includes a second movable seat; the second movable seat is connected to the fixed frame through a third linear guide assembly, the fixed frame is equipped with a stepper motor, and the spindle of the stepper motor is connected to the second movable seat through a gear and rack assembly or a ball screw; the second movable seat is equipped with two sets of grinding components for grinding the two sides of the circular saw blade head respectively. Attached Figure Description

[0016] Figure 1 and Figure 2 This is a three-dimensional structural diagram of the automatic sharpening device for circular saw blades from different perspectives in Embodiment 1.

[0017] Figure 3 This is a three-dimensional structural diagram of the grinding component area used for grinding the side of the grinding head in the automatic sharpening device for circular saw blades in Embodiment 1.

[0018] Figure 4 This is a three-dimensional structural diagram of the grinding component area used for grinding the outer circular surface of the saw head in the automatic sharpening device for circular saw blades in Embodiment 1.

[0019] Figure 5 This is a three-dimensional structural diagram of the grinding component area used for grinding the side of the grinding head in the automatic sharpening device for circular saw blades in Embodiment 2.

[0020] In the diagram, 100 is a circular saw blade; 1 is a frame; 1a is a fixed frame; 1b is a first movable seat; 1c is a second movable seat; 1d is a second linear guide assembly; 1e is a second servo motor; 1f is a second ball screw; 1g is a third linear guide assembly; 1h is a stepper motor; 1j is a gear and rack assembly; 2 is a clamping assembly; 2a is a saw blade drive motor; 2b is a saw blade mounting shaft; 2c is a saw blade clamp; 3 is a grinding assembly; 3a is a grinding wheel movable seat; 3b is a grinding wheel drive motor; 3c is a grinding wheel mounting shaft; 3d is a grinding wheel; 4 is a first linear guide assembly; 5 is a first servo motor; 6 is a first ball screw; 7 is a pressure sensor; 8 is an angular displacement sensor; 9 is a photoelectric sensor; and 10 is a shielding disc. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Example 1: As Figures 1 to 4 As shown, an automatic sharpening device for circular saw blades includes a frame 1, a clamping assembly 2 for clamping the circular saw blade 100, and a grinding assembly 3 for grinding the cutting head of the circular saw blade 100.

[0027] The frame 1 includes a fixed frame 1a, a first movable seat 1b, and a second movable seat 1c. The fixed frame 1a can be placed on the ground, and the first movable seat 1b is connected to the fixed frame 1a via a second linear guide assembly 1d. A second servo motor 1e is mounted on the fixed frame 1a, and the spindle of the second servo motor 1e is connected to the first movable seat 1b via a second ball screw 1f. The clamping assembly 2 is mounted on the first movable seat 1b, and can be driven to move horizontally left and right by controlling the second servo motor 1e; this structure allows the automatic circular saw blade sharpening device to be suitable for processing circular saw blades 100 of different diameters.

[0028] The clamping assembly 2 includes a saw blade drive motor 2a, a saw blade mounting shaft 2b, and a saw blade clamp 2c. In the clamping assembly 2, the housing of the saw blade drive motor 2a is fixed on the first movable seat 1b of the frame 1, the saw blade mounting shaft 2b is rotatably connected to the first movable seat 1b of the frame 1, one end of the saw blade mounting shaft 2b is connected to the main shaft of the saw blade drive motor 2a, and the circular saw blade 100 can be fixedly mounted on the other end of the saw blade mounting shaft 2b through the saw blade clamp 2c.

[0029] The saw blade mounting shaft 2b is set horizontally, and the axis of the saw blade mounting shaft 2b is set perpendicular to the guiding direction of the second linear guide assembly 1d; the circular saw blade 100 is set coaxially with the saw blade mounting shaft 2b, and the side of the circular saw blade 100 is set vertically.

[0030] A grinding assembly 3 is also installed on the first movable seat 1b. As shown in the attached diagram of the instruction manual, the grinding assembly 3 is located on the right side of the clamping assembly 2. The grinding assembly 3 is used to grind the outer cylindrical surface of the circular saw blade 100. The grinding assembly 3 is called the outer cylindrical grinding assembly 3.

[0031] The second movable seat 1c is connected to the fixed frame 1a via a third linear guide assembly 1g. A stepper motor 1h is mounted on the fixed frame 1a, and the spindle of the stepper motor 1h is connected to the second movable seat 1c via a gear and rack assembly 1j or a ball screw. The guiding direction of the third linear guide assembly 1g is parallel to the guiding direction of the second linear guide assembly 1d.

[0032] The second moving base 1c is equipped with two sets of grinding components 3. As shown in the attached diagram of the instruction manual, these two sets of grinding components 3 are located on the left side of the clamping assembly 2. These two sets of grinding components 3 are used to grind the two sides of the circular saw blade 100 head, and are referred to as the side grinding components 3. By controlling the stepper motor 1h, the side grinding components 3 can be driven to move horizontally back and forth, thereby improving the wear uniformity of the grinding wheel 3d surface.

[0033] The grinding assembly 3 includes a grinding wheel moving base 3a, a grinding wheel drive motor 3b, a grinding wheel mounting shaft 3c, and a grinding wheel 3d. In the grinding assembly 3, the housing of the grinding wheel drive motor 3b is fixed on the grinding wheel moving base 3a, the grinding wheel mounting shaft 3c is rotatably connected to the grinding wheel moving base 3a, one end of the grinding wheel mounting shaft 3c is drive-connected to the spindle of the grinding wheel drive motor 3b, and the grinding wheel 3d is fixedly mounted on the other end of the grinding wheel mounting shaft 3c.

[0034] The grinding wheel 3d is coaxial with the grinding wheel mounting shaft 3c. In the external cylindrical grinding assembly 3, the axis of the grinding wheel mounting shaft 3c is parallel to the axis of the saw blade mounting shaft 2b. In the side grinding assembly 3, the axis of the grinding wheel mounting shaft 3c is perpendicular to the axis of the saw blade mounting shaft 2b.

[0035] The grinding wheel moving seat 3a is connected to the frame 1 through the first linear guide assembly 4. The first linear guide assembly 4, which is connected to the outer cylindrical grinding assembly 3, is set perpendicular to the axis of the saw blade mounting shaft 2b. The first linear guide assembly 4, which is connected to the side grinding assembly 3, is set parallel to the axis of the saw blade mounting shaft 2b.

[0036] A set of first servo motors 5 is mounted on the first moving base 1b. The spindle of the first servo motor 5 is connected to the grinding wheel moving base 3a in the external cylindrical grinding assembly 3 via a first ball screw 6 and a pressure sensor 7. Two sets of first servo motors 5 are mounted on the second moving base 1c. The spindles of the two sets of first servo motors 5 are connected to the grinding wheel moving bases 3a in the two sets of side grinding assemblies 3 via first ball screws 6 and pressure sensors 7. By controlling the first servo motors 5, the grinding wheel 3d can be driven to move horizontally reciprocatingly, so that the wheel surface of the grinding wheel 3d moves towards or away from the cutting head of the circular saw blade 100.

[0037] The automatic sharpening device for circular saw blades also includes a control circuit and a sensing assembly for detecting whether the grinding wheel 3d is rotating. The sensing assembly includes an electronic sensing element. The electronic sensing element, saw blade drive motor 2a, grinding wheel drive motor 3b, pressure sensor 7, and first servo motor 5 of the sensing assembly are all electrically connected to the control circuit.

[0038] The electronic sensing element is an angular displacement sensor 8, and the housing of the angular displacement sensor 8 is fixed on the grinding wheel moving base 3a. For example... Figure 3 As shown, the shaft of the angular displacement sensor 8 is connected to the main shaft of the grinding wheel drive motor 3b via a coupling; as Figure 4 As shown, the shaft of the angular displacement sensor 8 is connected to the grinding wheel mounting shaft 3c via a coupling.

[0039] The method for calibrating the initial contact position between the grinding wheel 3d and the circular saw blade 100 is as follows: The control circuit first controls the saw blade drive motor 2a to rotate the circular saw blade 100, controlling the first servo drive grinding wheel 3d to move closer to the circular saw blade 100's cutting head; until the grinding wheel 3d contacts the circular saw blade 100's cutting head, the circular saw blade 100 drives the grinding wheel 3d to rotate. The rotation of the grinding wheel 3d synchronously drives the main shaft of the grinding wheel mounting shaft 3c and the grinding wheel drive motor 3b to rotate, thereby driving the shaft of the angular displacement sensor 8 to rotate. In other words, the angular displacement sensor 8 can detect the rotation of the grinding wheel 3d in real time. The control circuit synchronously records the parameters of the first servo motor 5 based on the information detected by the sensing component that the grinding wheel 3d is rotating. These parameters are calibrated as the initial contact position between the grinding wheel 3d and the circular saw blade 100's cutting head.

[0040] By describing the process of grinding the side of the circular saw blade 100 using an automatic sharpening device, the advantages of each component and the above method are further explained.

[0041] The grinding assembly 3 is in the initial position, and the initial position of the spindle of the first servo motor 5 is calibrated to 0 revolutions and 0 degrees. First, the saw blade drive motor 2a is operated to drive the circular saw blade 100 to rotate, and then the first servo motor 5 is operated to drive the grinding wheel 3d to move towards the side of the circular saw blade 100. During this process, the grinding wheel drive motor 3b does not drive the grinding wheel 3d to rotate.

[0042] When the side of the circular saw blade 100 contacts the surface of the grinding wheel 3d, there is frictional resistance between them. As a result, the circular saw blade 100 drives the grinding wheel 3d to rotate. Even if the grinding wheel 3d rotates at a small angle, it can be detected by the angular displacement sensor 8. The control circuit records the parameters of the first servo motor 5, such as the spindle rotating 5 revolutions and 270°. Then, the position of the grinding wheel 3d when the spindle rotates 5 revolutions and 270° is marked as the initial position of the grinding wheel 3d contacting the side of the circular saw blade 100.

[0043] After the initial contact position is calibrated, the grinding assembly 3 is reset to the initial position before grinding is performed. This means both the saw blade drive motor 2a and the grinding wheel drive motor 3b operate, the circular saw blade 100 rotates, and the grinding wheel 3d also rotates. The grinding feed rate is based on the initial contact position. If the feed rate is equivalent to a 90° rotation of the spindle of the first servo motor 5, then the spindle of the first servo motor 5 will rotate 6 revolutions and then stop. During this process, the pressure sensor 7 detects the pressure during grinding. The value detected by the pressure sensor 7 reflects the force between the grinding wheel 3d and the cutting head of the circular saw blade 100. The control circuit can control whether the spindle of the first servo motor 5 rotates based on the pressure detected by the pressure sensor 7, i.e., whether to continue feeding, stop, or reverse.

[0044] Example 2: Figure 5 As shown, the structure and principle of this embodiment are basically the same as those of Embodiment 1. The similarities will not be repeated here; only the differences will be described. The difference lies in that the sensing component includes a photoelectric sensor 9 and a light-shielding disc 10. The light-shielding disc 10 is fixedly connected to the grinding wheel mounting shaft 3c. The photoelectric sensor 9 is fixed on the grinding wheel moving seat 3a. The light-shielding disc 10 has multiple circumferentially spaced light-transmitting holes and light-shielding parts. The circular saw blade 100 drives the grinding wheel 3d to rotate, and the grinding wheel 3d drives the grinding wheel mounting shaft 3c and the light-shielding disc 10 to rotate synchronously. Thus, the light emitted by the photoelectric sensor 9 switches between the light-shielding parts and the light-transmitting holes. During this process, the photoelectric sensor 9 generates different signals. In other words, when the signal of the photoelectric sensor 9 changes, the light-shielding disc 10 rotates with the grinding wheel mounting shaft 3c, thereby causing the grinding wheel mounting shaft 3c to rotate.

Claims

1. An automatic sharpening device for circular saw blades includes a frame, a clamping assembly for holding the circular saw blade, and a grinding assembly for grinding the blade tip; The clamping assembly includes a saw blade drive motor, a saw blade mounting shaft, and a saw blade clamp. The housing of the saw blade drive motor is fixed on the frame. The saw blade mounting shaft is rotatably connected to the frame. One end of the saw blade mounting shaft is connected to the main shaft of the saw blade drive motor. The circular saw blade can be fixedly mounted on the other end of the saw blade mounting shaft through the saw blade clamp. The grinding assembly includes a grinding wheel moving base, a grinding wheel drive motor, a grinding wheel mounting shaft, and a grinding wheel. The housing of the grinding wheel drive motor is fixed on the grinding wheel moving base. The grinding wheel mounting shaft is rotatably connected to the grinding wheel moving base. One end of the grinding wheel mounting shaft is connected to the main shaft of the grinding wheel drive motor. The grinding wheel is fixedly mounted on the other end of the grinding wheel mounting shaft. The grinding wheel moving seat is connected to the frame through a first linear guide assembly. A first servo motor is installed on the frame. The spindle of the first servo motor is connected to the grinding wheel moving seat through a first ball screw. Controlling the first servo motor can make the grinding wheel surface approach or move away from the cutting head of the circular saw blade. Its features are, The automatic sharpening device for circular saw blades also includes a control circuit and a sensing component for detecting whether the grinding wheel is rotating. The sensing component includes an electronic sensing element. The electronic sensing element, saw blade drive motor, grinding wheel drive motor, and first servo motor of the sensing component are all electrically connected to the control circuit. The control circuit first controls the saw blade drive motor to drive the circular saw blade to rotate, and controls the first servo drive grinding wheel to move closer to the circular saw blade head until the grinding wheel contacts the circular saw blade head, and the circular saw blade drives the grinding wheel to rotate. The control circuit synchronously records the parameters of the first servo motor based on the information detected by the sensing components that the grinding wheel is rotating, and calibrates it as the initial contact position between the grinding wheel and the circular saw blade head.

2. The circular saw blade side-sharpening device according to claim 1, characterized in that, The electronic sensing element is an angular displacement sensor, and the housing of the angular displacement sensor is fixed on the grinding wheel moving seat; the shaft of the angular displacement sensor is connected to the main shaft of the grinding wheel drive motor, or the shaft of the angular displacement sensor is connected to the grinding wheel mounting shaft.

3. The circular saw blade side-sharpening device according to claim 1, characterized in that, The sensing component includes a photoelectric sensor and a light-shielding disc. The light-shielding disc is fixedly connected to the grinding wheel mounting shaft. The photoelectric sensor is fixed on the grinding wheel moving seat. The light-shielding disc has multiple light-transmitting holes and light-shielding parts arranged circumferentially. When the light emitted by the photoelectric sensor switches between the light-shielding part and the light-transmitting hole, the photoelectric sensor will generate different signals.

4. The circular saw blade side-sharpening device according to claim 1, 2, or 3, characterized in that, The first ball screw and the grinding wheel moving seat are connected by a pressure sensor. The pressure sensor detects the magnitude of the force between the grinding wheel and the circular saw blade head during the grinding process. The pressure sensor is electrically connected to the control circuit, which can control whether the spindle of the first servo motor rotates based on the pressure detected by the pressure sensor.

5. The circular saw blade side-sharpening device according to claim 1, 2, or 3, characterized in that, The frame includes a fixed frame and a first movable seat; the first movable seat is connected to the fixed frame via a second linear guide assembly, a second servo motor is mounted on the fixed frame, and the spindle of the second servo motor is connected to the first movable seat via a second ball screw; a clamp assembly is mounted on the first movable seat.

6. The circular saw blade side-sharpening device according to claim 5, characterized in that, The first movable base is also equipped with a grinding assembly for grinding the outer surface of the circular saw blade head.

7. The circular saw blade side-sharpening device according to claim 5, characterized in that, The frame also includes a second movable seat; the second movable seat is connected to the fixed frame via a third linear guide assembly, and a stepper motor is mounted on the fixed frame. The spindle of the stepper motor is connected to the second movable seat via a gear and rack assembly or a ball screw. The second movable seat is equipped with two sets of grinding assemblies for grinding the two sides of the circular saw blade head.

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