Numerical control arc cutting edge grinding equipment

Abstract

The numerical control arc-shaped cutting edge grinding equipment comprises a grinding head angle adjusting mechanism and a cutter fixing mechanism, the grinding head angle adjusting mechanism comprises a driving module and a movable plate, the driving module comprises a first executing mechanism and a driving wheel, and the driving wheel and the movable plate are connected in a meshed mode through a gear structure; the driving wheel is used for driving the movable plate to reciprocate along the end face of the movable plate, the other end face of the movable plate is provided with a grinding module, the grinding module comprises a second executing mechanism and a grinding head, the cutter fixing mechanism comprises a cutter fixing jig and a cutting edge reversing device, the cutter fixing jig is used for adsorbing a cutter, and the cutting edge reversing device is used for reversing the cutter. And the cutting edge reversing device is used for enabling different cutting edge surfaces to face the grinding head. The grinding angle of the grinding head can be adjusted in real time in the direction surrounding the cutting edge, so that the cutting edge can be ground to be in an arc shape, in the grinding process, the equipment can also automatically conduct face changing on the cutting edge, manual intervention is not needed, and the grinding efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of grinding equipment, in particular to a numerically controlled arc-shaped cutting edge grinding equipment. Background Art

[0002] Automatic tool sharpening equipment is a device that fixes the tool so that its blade faces upward, and then automatically grinds the blade through the grinding head. The shapes and contours of modern tools are becoming more and more complex, and many tools have unique cutting edge angles and curves. During the grinding process, the angle of the grinding head needs to be continuously adjusted to achieve different requirements.

[0003] The grinding head in the existing automatic tool sharpening equipment cannot adjust the angle in real time. When it is necessary to grind tools with different angles or different angle parts on the same tool, the operator may need to disassemble and re-clamp the tool multiple times to change the relative angle between the tool and the grinding head, thereby reducing the grinding efficiency. Moreover, since the grinding head cannot adjust the angle in real time, it is difficult to grind along these complex contours accurately, resulting in deviations between the shape of the tool after grinding and the design requirements, affecting the cutting performance and processing quality of the tool. Finally, if the grinding head cannot adjust the angle in real time, during the grinding process, even a small angle deviation will gradually accumulate as the grinding progresses if it is not adjusted in time. This will cause the cutting edge angle of the tool to gradually deviate from the ideal value, ultimately resulting in inaccurate cutting angles of the tool, reducing the cutting efficiency and service life of the tool.

[0004] In addition, in existing automatic knife sharpening equipment, a clamping arm is usually used to clamp the tool from the bottom of the tool to both sides of the blade to fix the tool. However, this method cannot provide effective support for the tool itself during the high-intensity grinding process, resulting in the tool falling off the fixture during the grinding process, causing damage to the tool or injury to the operator. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention provides a CNC arc-shaped cutting edge grinding device, including a grinding head angle adjustment mechanism and a tool fixing mechanism, the grinding head angle adjustment mechanism includes a driving module and a movable plate, the driving module includes a first actuator and a driving wheel, the driving wheel and the movable plate are meshed and connected by a gear structure, the driving wheel is used to drive the movable plate to reciprocate along its end face, a grinding module is arranged on the other end face of the movable plate, the grinding module includes a second actuator and a grinding head, the second actuator is used to drive the grinding head to rotate, the tool fixing mechanism includes a tool fixing fixture and a blade reversing device, the tool fixing fixture is used to adsorb the tool, and the blade reversing device is used to direct different blade surfaces toward the grinding head.

[0006] Furthermore, the tool fixing fixture includes a fixing seat, and a first groove and a suction hole are arranged on the side wall of the fixing seat. The suction hole is used to adsorb the tool on the side wall of the fixing seat by suction, and the first groove is used to wrap the back and handle of the tool.

[0007] Furthermore, the number of the tool fixing jigs is two, and they are arranged in upper and lower mirror images of each other. A connecting seat is arranged between the tool fixing jigs, and the tool fixing jigs form axial connections on opposite sides of the connecting seat.

[0008] Furthermore, the blade reversing device includes a driving motor, which is fixed on a connecting seat. A telescopic rod is connected to the driving motor, and one end of the telescopic rod is fixed on a side of the tool fixing fixture away from the suction hole.

[0009] Furthermore, an arc gear bar is fixed on the end surface of the movable plate, and one end of the driving wheel is meshed with the arc gear bar. When the driving wheel rotates, it drives the movable plate to perform an arc-shaped reciprocating yaw motion with the center of the arc gear bar as the axis.

[0010] Furthermore, the first actuator includes a first rotating motor and a speed changing mechanism, the speed changing mechanism is used to reduce the output speed of the first rotating motor according to a preset transmission ratio, and the driving wheel and the speed changing mechanism are meshed with each other.

[0011] Furthermore, the speed change mechanism includes a reducer, which is connected to the output end of the first rotating motor, and the output end of the reducer is connected to a first transmission gear. The output speed of the first rotating motor is reduced by the reducer, and then the first transmission gear is driven to rotate through the output end of the reduction member. The first transmission gear is meshed and connected with a second transmission gear, and the second transmission gear rotates synchronously with the driving wheel through a connecting rod.

[0012] Furthermore, the second actuator includes a supporting seat and a second rotating motor, the supporting seat is connected to the end surface of the movable plate, the second rotating motor is fixed on a side of the supporting seat away from the movable plate, and the grinding head is connected to the output end of the second rotating motor.

[0013] Furthermore, a first moving device is provided between the supporting seat and the movable plate, and the first moving device is used to drive the supporting seat and the second rotating motor to move linearly along the end surface of the movable plate.

[0014] Furthermore, the first moving device includes a third rotating motor and a first transmission screw, the first transmission screw is fixed on the end surface of the movable plate, and the supporting seat and the first transmission screw form a screw connection.

[0015] Furthermore, first guide rails are arranged on both sides of the first transmission screw, the laying direction of the first guide rails is the same as that of the first transmission screw, the supporting seat is clamped on the first guide rails, the driving module is wrapped around a shell, and second guide rails are arranged on both sides of the arc-shaped gear bar, the curvature of the second guide rails is the same as that of the arc-shaped gear bar, and a clamping seat matching the second guide rails is arranged on the side of the shell facing the movable plate.

[0016] Furthermore, a second moving device is also connected to the connecting seat, and the second moving device includes a frame, and a second transmission screw and a fourth rotating motor are arranged on the frame. The second transmission screw is laid on the top of the frame, and the fourth rotating motor is used to drive the second transmission screw to rotate. A sliding seat is sleeved on the second transmission screw. When the second transmission screw rotates, the sliding seat can move along the second transmission screw. A lifting motor is arranged on the top of the sliding seat, and the connecting seat is connected below the lifting motor.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present application drives the movable plate to perform reciprocating oscillating motion along its end face through a driving module, so that the grinding head can be driven to oscillate according to a preset angle. Therefore, when grinding the blade, the grinding angle can be adjusted in real time in the direction around the blade, and the blade can be ground into different shapes according to different customer requirements. In addition, the present application also utilizes a blade reversing device. After the grinding head completes grinding one surface of the blade, it can automatically switch to the other surface and continue grinding without manual intervention, thereby greatly improving the grinding efficiency and reducing the possibility of personnel injury during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the tool fixing mechanism of the present invention; Figure 3 is a cross-sectional view of the tool fixing mechanism of the present invention; Figure 4 It is a schematic diagram of the overall structure of the grinding head angle adjustment mechanism of the present invention; Figure 5It is a schematic diagram of the overall structure of the grinding head angle adjustment mechanism of the present invention from another angle; Figure 6 It is a schematic diagram of the assembly of the driving wheel and the arc-shaped gear bar of the present invention; Figure 7 is a schematic structural diagram of a first execution structure of the present invention; Figure 8 It is a structural schematic diagram of the second actuator and the first moving device of the present invention; Fig. 9 It is a schematic diagram of assembling the housing and the movable plate of the present invention.

[0020] Fig.10 It is a schematic structural diagram of the second mobile device of the present invention.

[0021] The reference numerals and names in the figures are as follows: Grinding head angle adjustment mechanism 10, tool fixing mechanism 20, tool fixing fixture 400, blade reversing device 500, fixing seat 410, first groove 411, suction hole 412, connecting seat 420, driving motor 510, telescopic rod 520, driving module 100, movable plate 200, first actuator 110, driving wheel 120, grinding module 300, second actuator 310, grinding head 320, arc gear bar 210, first rotating motor 111, speed change mechanism 112 , reducer 112a, first transmission gear 112b, second transmission gear 112c, connecting rod 112d, supporting seat 311, second rotating motor 312, first moving device 330, third rotating motor 331, first transmission screw 332, first guide rail 333, housing 130, second guide rail 220, clamping seat 131, second moving device 600, frame 610, second transmission screw 620, fourth rotating motor 630, sliding seat 640, lifting motor 650. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words 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, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0027] The preferred embodiments of the present invention are now further described in conjunction with the accompanying drawings. Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, a CNC arc-shaped cutting edge grinding device includes a grinding head angle adjustment mechanism 10 and a tool fixing mechanism 20. The grinding head angle adjustment mechanism 10 includes a driving module 100 and a movable plate 200. The driving module 100 is arranged on the end surface of the movable plate 200. The driving module 100 includes a first actuator 110 and a driving wheel 120. The first actuator 110 is used to drive the driving wheel 120 to rotate. The driving wheel 120 and the movable plate 200 are meshed and connected through a gear structure. 120 is used to drive the movable plate 200 to reciprocate along its end surface. A grinding module 300 is arranged on the other end surface of the movable plate 200. The grinding module 300 includes a second actuator 310 and a grinding head 320. The second actuator 310 is used to drive the grinding head 320 to rotate. The tool fixing mechanism 20 includes a tool fixing fixture 400 and a blade reversing device 500. The tool fixing fixture 400 is used to adsorb the tool. The blade reversing device 500 is used to direct different blade surfaces toward the grinding head 320.

[0028] In the working state of this embodiment, the tool fixing fixture 400 first fixes the tool head at a preset position, aligns the grinding head 320 with one surface of the blade, and then starts the second actuator 310 to drive the grinding head 320 to rotate to grind the blade part. When the grinding angle needs to be adjusted, the second actuator 310 is started to drive the driving wheel 120 to rotate. Since the driving wheel 120 is meshed and connected with the movable plate 200, when the driving wheel 120 rotates, it will drive the movable plate 200 to reciprocate along the end surface of the movable plate 200, thereby driving the grinding head 320 to deflect according to a preset angle, thereby achieving the effect of adjusting the grinding angle. After the grinding head 320 completes grinding one surface of the blade, the blade reversing device 500 is started to turn the other surface of the blade toward the grinding head 320, and then the second actuator 310 is started to drive the grinding head 320 to rotate to grind the blade part.

[0029] The present application drives the movable plate 200 to perform reciprocating oscillating motion along its end surface through the driving module 100, so that the grinding head 320 can be driven to oscillate at a preset angle, so that when grinding the blade, the grinding angle can be adjusted in real time in the direction around the blade, and the blade can be ground into different shapes according to different customer requirements. In addition, the present application also utilizes a blade reversing device 500, so that after the grinding head 320 completes grinding one surface of the blade, it can automatically switch to the other surface and then continue grinding without human intervention, thereby greatly improving the grinding efficiency and reducing the possibility of personnel injury during operation.

[0030] On the basis of the above embodiments, Figure 2As shown, the tool fixing fixture 400 includes a fixing seat 410, and a first groove 411 and a suction hole 412 are arranged on the side wall of the fixing seat 410. The suction hole 412 is used to adsorb the tool on the side wall of the fixing seat 410 by suction. Preferably, a rubber strip is arranged in the first groove 411. The first groove 411 is used to wrap the back and handle of the tool, and only the blade part is exposed outside the first groove 411, so as to facilitate the grinding of the grinding head 320. The first groove 411 can effectively support the back and handle of the tool, so that the tool can be fixed more firmly when the grinding head 320 grinds the blade.

[0031] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, there are two tool fixing jigs 400, which are mirror images of each other. A connecting seat 420 is provided between the tool fixing jigs 400, and the tool fixing jigs 400 are axially connected on opposite sides of the connecting seat 420, so that the side of the tool fixing jig 400 with the suction hole 412 can rotate toward each other along the axial direction on the connecting seat 420.

[0032] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, the blade reversing device 500 includes a driving motor 510, the driving motor 510 is fixed on the connecting seat 420, a telescopic rod 520 is connected to the driving motor 510, one end of the telescopic rod 520 is fixed to the side of the tool fixing fixture 400 away from the suction hole 412, in the normal state of this embodiment, the tool is adsorbed on the side wall of the fixing seat 410 through the suction force of the suction hole 412, and the blade is partially exposed outside the first groove 411, so that it is convenient for the grinding head 320 to grind the blade. When one side of the blade is ground, the driving motor 510 is started to drive the telescopic rod 520 to grind the blade. The retracted rod 520 is extended forward, so that the tool fixing fixture 400 rotates toward each other along the axial direction on the connecting seat 420 until the sides with the suction holes 412 on the tool fixing fixture 400 contact each other, and then the initial suction of the tool fixing fixture 400 is released, and the suction device (not shown in the figure) of the other tool fixing fixture 400 is started, so that the tool is switched from the tool fixing fixture 400 to the other tool fixing fixture 400 with a mirror setting. In this process, the blade part completes the mirror reversal, so that the other side of the blade can face the grinding head 320.

[0033] On the basis of the above embodiments, Figures 4 to 6As shown, an arc-shaped gear bar 210 is fixed on the end face of the movable plate 200, and one end of the driving wheel 120 is meshed with the arc-shaped gear bar 210. When the driving wheel 120 rotates, it drives the movable plate 200 to perform an arc-shaped reciprocating pendulum motion with the center of the arc-shaped gear bar 210 as the axis. Therefore, under the operation of this embodiment, when the grinding head 320 grinds the blade part, the second actuator 310 is started to drive the driving wheel 120 to rotate, and the grinding head 320 can perform an arc-shaped reciprocating motion within a preset angle range (for example, within plus or minus 20 degrees), forming a motion trajectory similar to a pendulum, so that the blade part can be ground into an arc.

[0034] On the basis of the above embodiments, Figure 4 and Figure 7 As shown, the first actuator 110 includes a first rotating motor 111 and a speed changing mechanism 112. The speed changing mechanism 112 is used to reduce the output speed of the first rotating motor 111 according to a preset transmission ratio. The driving wheel 120 and the speed changing mechanism 112 are meshed with each other. The speed changing mechanism 112 can reduce the high speed of the first rotating motor 111 and then transmit it to the driving wheel 120, so that the driving wheel 120 can more accurately control the deflection angle of the movable plate 200, and then the grinding head 320 can more accurately adjust the grinding angle.

[0035] In some implementations, such as Figure 7 As shown, the speed change mechanism 112 includes a reducer 112a, which is connected to the output end of the first rotating motor 111, and the output end of the reducer 112a is connected to the first transmission gear 112b. The output speed of the first rotating motor 111 is reduced by the reducer 112a, and then the first transmission gear 112b is driven to rotate by the output end of the reduction member. The first transmission gear 112b is meshed and connected with the second transmission gear 112c, and the second transmission gear 112c rotates synchronously with the driving wheel 120 through the connecting rod 112d. When the output is required to be reduced, the output speed of the first rotating motor 111 is first reduced by the reducer 112a, and then the final speed output is achieved by setting the gear ratio between the first transmission gear 112b and the first transmission gear 112b.

[0036] On the basis of the above embodiments, Figure 8As shown, the second actuator 310 includes a supporting seat 311 and a second rotating motor 312. The supporting seat 311 is connected to the end face of the movable plate 200. The second rotating motor 312 is fixed on the side of the supporting seat 311 away from the movable plate 200. The grinding head 320 is connected to the output end of the second rotating motor 312. When the blade needs to be further ground, the second rotating motor 312 is started to drive the grinding rotation.

[0037] In some implementations, such as Figure 8 As shown, a first moving device 330 is arranged between the supporting seat 311 and the movable plate 200, and the first moving device 330 is used to drive the supporting seat 311 and the second rotating motor 312 to move linearly along the end surface of the movable plate 200, so that when the preset position where the cutter head is fixed is far away from the movable plate 200, the first moving device 330 can drive the supporting seat 311 and the second rotating motor 312 to move as a whole toward the direction of the cutter head, so that the grinding head 320 can contact the blade, or during the grinding process, when grinding a special-shaped blade, the distance between the grinding head 320 and the blade can also be adjusted by the first moving device 330.

[0038] On the basis of the above embodiments, Figure 8 As shown, the first moving device 330 includes a third rotating motor 331 and a first transmission screw 332. The first transmission screw 332 is fixed on the end surface of the movable plate 200. The supporting seat 311 and the first transmission screw 332 form a screw connection. When the third rotating motor 331 is started, it drives the first transmission screw 332 to rotate, thereby driving the supporting seat 311 to move along the first transmission screw 332, and then driving the supporting seat 311 and the second rotating motor 312 to move linearly along the end surface of the movable plate 200.

[0039] In some implementations, such as Figure 8 As shown, first guide rails 333 are arranged on both sides of the first transmission screw 332, and the laying direction of the first guide rails 333 is the same as that of the first transmission screw 332. The supporting seat 311 is clamped on the first guide rails 333, so that when the supporting seat 311 moves along the first transmission screw 332, the first guide rails 333 can play an auxiliary guiding role in the moving direction of the supporting seat 311.

[0040] In some implementations, such as Figure 5 and Fig. 9As shown, the driving module 100 is wrapped with a shell 130, and second guide rails 220 are arranged on both sides of the arc-shaped gear bar 210. The curvature of the second guide rail 220 is the same as that of the arc-shaped gear bar 210. A clamping seat 131 that cooperates with the second guide rail 220 is arranged on the side of the shell 130 facing the movable plate 200, so that the active wheel 120 drives the movable plate 200 to perform an arc-shaped reciprocating yaw motion with the center of the arc-shaped gear bar 210 as the axis, and the second guide rail 220 is clamped on the clamping seat 131, thereby playing an auxiliary guiding role in the moving direction of the movable plate 200.

[0041] In some implementations, such as Fig.10 As shown, the connecting seat 420 is also connected to a second moving device 600, and the second moving device 600 includes a frame 610, on which a second transmission screw 620 and a fourth rotating motor 630 are arranged, the second transmission screw 620 is laid on the top of the frame 610, and the fourth rotating motor 630 is used to drive the second transmission screw 620 to rotate, and a sliding seat 640 is sleeved on the second transmission screw 620, and when the second transmission screw 620 rotates, the sliding seat 640 can move along the second transmission screw 620, and a lifting motor 650 is arranged on the top of the sliding seat 640, and the connecting seat 420 is connected below the lifting motor 650, so that the fourth rotating motor 630 and the lifting motor 650 can be used to drive the connecting seat 420 to move horizontally and vertically, so as to move the cutter head to a preset position for the grinding head 320 to grind.

[0042] The details of the exemplary embodiments described above are not limited to the embodiments described above, and the invention may be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive in all respects, and the scope of the invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the invention.

Claims

1. A CNC arc-shaped cutting edge grinding device, characterized in that: The invention comprises a grinding head angle adjustment mechanism (10) and a tool fixing mechanism (20), wherein the grinding head angle adjustment mechanism (10) comprises a driving module (100) and a movable plate (200), wherein the driving module (100) comprises a first actuator (110) and a driving wheel (120), wherein the driving wheel (120) and the movable plate (200) are meshed and connected via a gear structure, wherein the driving wheel (120) is used to drive the movable plate (200) to reciprocate along its end surface, and wherein the movable plate (200) is provided with a plurality of driving wheels. 0) is provided with a grinding module (300) on the other end surface thereof, the grinding module (300) comprising a second actuator (310) and a grinding head (320), the second actuator (310) being used to drive the grinding head (320) to rotate, the tool fixing mechanism (20) comprising a tool fixing fixture (400) and a blade reversing device (500), the tool fixing fixture (400) being used to adsorb the tool, and the blade reversing device (500) being used to direct different blade surfaces toward the grinding head (320).

2. The CNC arc-shaped cutting edge grinding device according to claim 1, characterized in that: The tool fixing fixture (400) comprises a fixing seat (410), and a first groove (411) and a suction hole (412) are provided on a side wall of the fixing seat (410); the suction hole (412) is used to adsorb the tool on the side wall of the fixing seat (410) by suction, and the first groove (411) is used to wrap the back and handle of the tool.

3. The CNC arc-shaped cutting edge grinding device according to claim 2, characterized in that: The number of the tool fixing jigs (400) is two, and they are arranged in mirror images of each other. A connecting seat (420) is arranged between the tool fixing jigs (400), and the tool fixing jigs (400) are axially connected on opposite sides of the connecting seat (420).

4. The CNC arc-shaped cutting edge grinding device according to claim 3, characterized in that: The blade reversing device (500) comprises a driving motor (510), the driving motor (510) being fixed on a connecting seat (420), a telescopic rod (520) being connected to the driving motor (510), and one end of the telescopic rod (520) being fixed on a side of the tool fixing fixture (400) away from the suction hole (412).

5. The CNC arc-shaped cutting edge grinding device according to claim 1, characterized in that: An arc-shaped gear bar (210) is fixed on the end surface of the movable plate (200), and one end of the driving wheel (120) is meshed with the arc-shaped gear bar (210). When the driving wheel (120) rotates, it drives the movable plate (200) to perform an arc-shaped reciprocating yaw motion with the center of the arc-shaped gear bar (210) as the axis.

6. The CNC arc-shaped cutting edge grinding device according to claim 5, characterized in that: The first actuator (110) comprises a first rotating motor (111) and a speed change mechanism (112), wherein the speed change mechanism (112) is used to reduce the output speed of the first rotating motor (111) according to a preset transmission ratio, and the driving wheel (120) and the speed change mechanism (112) are meshed with each other.

7. The CNC arc-shaped cutting edge grinding device according to claim 6, characterized in that: The speed change mechanism (112) comprises a reducer (112a), the reducer (112a) being connected to the output end of the first rotating motor (111), the output end of the reducer (112a) being connected to a first transmission gear (112b), the output speed of the first rotating motor (111) being reduced by the reducer (112a), and then driven to rotate by the output end of the reducer (112a), the first transmission gear (112b) being meshedly connected to a second transmission gear (112c), the second transmission gear (112c) rotating synchronously with the driving wheel (120) via a connecting rod (112d).

8. The CNC arc-shaped cutting edge grinding device according to claim 1, characterized in that: The second actuator (310) comprises a supporting seat (311) and a second rotating motor (312), wherein the supporting seat (311) is connected to the end surface of the movable plate (200), the second rotating motor (312) is fixed to a side of the supporting seat (311) away from the movable plate (200), and the grinding head (320) is connected to the output end of the second rotating motor (312).

9. The CNC arc-shaped cutting edge grinding device according to claim 8, characterized in that: A first moving device (330) is provided between the supporting seat (311) and the movable plate (200), and the first moving device (330) is used to drive the supporting seat (311) and the second rotating motor (312) to move linearly along the end surface of the movable plate (200).

10. The CNC arc-shaped cutting edge grinding device according to claim 9, characterized in that: The first moving device (330) comprises a third rotating motor (331) and a first transmission screw (332); the first transmission screw (332) is fixed on the end surface of the movable plate (200); and the supporting seat (311) and the first transmission screw (332) form a screw connection.

11. The CNC arc-shaped cutting edge grinding device according to claim 10, characterized in that: First guide rails (333) are arranged on both sides of the first transmission screw (332), the laying direction of the first guide rails (333) being the same as that of the first transmission screw (332), the supporting seat (311) being clamped on the first guide rails (333), the driving module (100) being wrapped with a shell (130), second guide rails (220) being arranged on both sides of the arc-shaped gear bar (210), the curvature of the second guide rails (220) being the same as that of the arc-shaped gear bar (210), and a clamping seat (131) matching with the second guide rail (220) being arranged on one side of the shell (130) facing the movable plate (200).

12. The CNC arc-shaped cutting edge grinding device according to claim 3, characterized in that: The connecting seat (420) is also connected to a second moving device (600), the second moving device (600) comprises a frame (610), a second transmission screw (620) and a fourth rotating motor (630) are arranged on the frame (610), the second transmission screw (620) is laid on the top of the frame (610), the fourth rotating motor (630) is used to drive the second transmission screw (620) to rotate, a sliding seat (640) is sleeved on the second transmission screw (620), when the second transmission screw (620) rotates, the sliding seat (640) can move along the second transmission screw (620), a lifting motor (650) is arranged on the top of the sliding seat (640), and the connecting seat (420) is connected below the lifting motor (650).

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