A tool setting mechanism based on planetary gear train for differential fine adjustment

Abstract

The application discloses a kind of tool setting mechanism based on planetary gear train differential fine adjustment, it is related to tool setting equipment technical field.The tool setting mechanism, including detection platform and its installation sliding lifting mechanism and planetary gear drive mechanism, planetary gear drive mechanism lower end is fixedly connected with handle by flange, laser tool setting instrument is installed in the position corresponding handle below adjusting mechanism, data analysis equipment is set to the side of detection platform.The planetary gear drive mechanism is double-input system, sun gear and gear ring can rotate at different speeds, to generate accurate speed difference on planetary gear, the present application utilizes this differential fine adjustment mechanism, both can quickly complete coarse adjustment, can also realize nanometer level fine adjustment, significantly improve tool setting efficiency and precision.In addition, the compact design of planetary gear train makes the whole mechanism more lightweight and stable, reduces the space occupied, adapts to the demand of modern precision machining equipment to miniaturization, high efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of tool setting equipment, and more specifically, relates to a tool setting mechanism based on differential speed fine adjustment of a planetary gear system. Background Technology

[0002] In modern precision machining, high-precision tool setting is a crucial step in ensuring product quality and production efficiency. Traditional tool setting mechanisms typically rely on a single input drive system. These systems, driven by a single motor, struggle to simultaneously accommodate both wide-range adjustments and fine-tuning requirements. This design not only limits tool setting accuracy but can also lead to increased operational complexity and higher maintenance costs.

[0003] As industrial manufacturing demands ever-increasing precision, the limitations of traditional single-input drive systems are becoming increasingly apparent. Specifically, when rapid coarse adjustments are needed to accommodate different workpiece sizes, single-input systems often struggle to respond quickly; conversely, when fine adjustments are required to meet sub-micron level precision, they fail to achieve the necessary precise control. Furthermore, traditional designs are typically large and space-consuming, hindering the miniaturization and efficient layout of equipment. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this invention is to propose a tool setting mechanism based on differential speed fine-tuning using a planetary gear system.

[0005] To achieve the above objectives, the design concept of this invention is as follows: a dual-input planetary gear system is adopted, in which the sun gear is driven by a first servo motor, while the ring gear is linked to a second servo motor through a side gear. The dual-input design enables the sun gear and the ring gear to rotate at different speeds, thereby generating a precise speed difference on the planetary gears. Since the planetary gears are connected to the output shaft through the planet carrier, their combined rotation and revolution motion is directly transmitted to the tool on the tool holder, realizing fine adjustment of the tool setting position.

[0006] According to an embodiment of the present invention, a tool setting mechanism based on a planetary gear train for differential speed fine adjustment includes a testing platform and an adjustment mechanism mounted on it. The adjustment mechanism includes a sliding lifting mechanism and a planetary gear transmission mechanism. The sliding lifting mechanism is used to drive a support to move, and the planetary gear transmission mechanism is located at the support. The lower end of the planetary gear transmission mechanism is fixedly connected to a tool holder through a flange. A laser tool setter is installed below the adjustment mechanism at a position corresponding to the tool holder. A data analysis device is provided on one side of the testing platform. The data analysis device is connected to the laser tool setter for receiving and processing tool setting test data in real time.

[0007] Furthermore, the sliding lifting mechanism includes an adjustment box located on the upper side of the testing platform. A sliding groove is provided on the upper side of the adjustment box, and a slider is slidably arranged in the sliding groove. The upper end of the slider is connected to the body. A lifting groove is provided on one side of the body, and a cylinder is installed at the end of the lifting groove. The cylinder drives the lifting of the side plate, and a bracket is fixedly provided on one side of the side plate.

[0008] Furthermore, an adjusting screw is rotatably installed inside the slide groove, and the adjusting screw is threadedly connected to the slider.

[0009] Furthermore, a fixed base is connected to the upper side of the bracket away from the machine body. The output shaft is mounted on the fixed base through an angular contact bearing. One end of the output shaft is connected to the sun gear. Three sets of planetary gears are meshed on the outer side of the sun gear. A gear ring is provided on the outer side of the three sets of planetary gears. The three sets of planetary gears mesh with the teeth on the inner side of the gear ring. The output shaft is driven by a first servo motor, which is mounted on the upper end of the fixed base.

[0010] Furthermore, the planetary gears are rotatably supported on the planetary carrier via planetary gear shafts. The planetary carrier has three evenly distributed planetary gear mounting positions. The planetary gear shafts form a rotating pair with the planetary carrier via angular contact bearings. The output surface of the planetary carrier is fixedly connected to the tool holder via flanges.

[0011] Furthermore, a support plate is fixedly connected to the lower side of the bracket away from the machine body. A rotating groove is opened on the upper surface of the support plate, and a rotating ring is set on the lower side of the gear ring, which rotates in the rotating groove.

[0012] Furthermore, an outer ring is provided on the outer side of the gear ring, the outer ring has teeth on the outer side, and the inner side is fixedly connected to the gear ring. A side wheel is rotatably installed on the lower side of the bracket near the machine body. The side wheel meshes with the outer ring. The side wheel is driven by a second servo motor. The second servo motor is installed on the bracket near the machine body. An opening is provided at the center of the support plate. The side wheel forms a rotating pair with the bracket through an angular contact bearing.

[0013] Furthermore, a cutting tool is inserted into the tool holder, and the cutting tool is fixed by a locking bolt threaded to one side of the tool holder.

[0014] Furthermore, the teeth of the planetary gears, outer ring, side gears, and the inner teeth of the gear ring are all asymmetrical.

[0015] Furthermore, heat dissipation fins are provided on the upper end of the bracket.

[0016] The beneficial effects of this invention are as follows: the sun gear is driven by a first servo motor, while the ring gear is linked to a second servo motor via a side wheel. This dual-input design allows the sun gear and ring gear to rotate at different speeds, thereby generating a precise speed difference on the planetary gears. Since the planetary gears are connected to the output shaft via the planet carrier, their combined rotation and revolution motion is directly transmitted to the tool on the tool holder, achieving fine-tuning of the tool setting position. Compared to traditional single-input transmission systems, the dual-input planetary gear system can achieve more subtle speed difference adjustments, thus meeting the requirements for high-precision tool setting. Secondly, through the differential speed fine-tuning mechanism, both coarse adjustment can be completed quickly, and nanometer-level fine adjustment can be achieved, significantly improving tool setting efficiency and accuracy. In addition, the compact design of the planetary gear system makes the entire mechanism lighter and more stable, reducing the space occupied and adapting to the miniaturization and high efficiency requirements of modern precision machining equipment.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a tool setting mechanism based on a planetary gear train for differential speed fine adjustment according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the adjustment mechanism structure according to an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the body structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the planetary gear transmission mechanism according to an embodiment of the present invention; Figure 5 This is a schematic side view of the planetary gear transmission mechanism according to an embodiment of the present invention; Figure 6 This is a top view of the gear ring structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the knife handle structure according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the support plate structure according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the support structure according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the gear ring structure according to an embodiment of the present invention.

[0019] In the diagram: 1. Testing platform; 2. Adjustment box; 3. Slide groove; 4. Adjustment screw; 5. Slider; 6. Machine body; 7. Lifting groove; 8. Cylinder; 9. Laser tool setter; 10. Bracket; 11. Side plate; 12. Fixing seat; 13. Heat dissipation fins; 14. Support plate; 15. Rotary groove; 16. Opening; 17. Output shaft; 18. Sun gear; 19. Planetary gear; 20. Gear ring; 21. Outer ring; 22. Rotary ring; 23. Planetary carrier; 24. Side wheel; 25. Tool holder; 26. Locking bolt; 27. Tool; 28. First servo motor; 29. ​​Second servo motor; 30. Data analysis equipment. Detailed Implementation

[0020] The technical solutions of the present invention will now be described with reference to the accompanying drawings in the embodiments of the present invention.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] 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," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following description, with reference to the accompanying drawings, illustrates a tool setting mechanism based on a planetary gear train for differential speed fine-tuning according to an embodiment of the present invention.

[0028] like Figures 1-10 As shown, a tool setting mechanism based on a planetary gear train for differential speed fine adjustment according to an embodiment of the present invention includes a detection table 1 and an adjustment mechanism mounted on it. The adjustment mechanism is used to adjust the height and left and right position of the tool 27.

[0029] The core of the adjustment mechanism is the adjustment box 2 located on the upper side of the inspection table 1. A slide groove 3 is provided on the upper side of the adjustment box 2, and a slider 5 is slidably mounted inside the slide groove 3. The upper end of the slider 5 is connected to the machine body 6. By moving the slider 5 within the slide groove 3, the machine body 6 can perform horizontal displacement along the direction of the slide groove 3, thereby achieving preliminary adjustment of the position of the tool 27. The design of the slide groove 3 and the slider 5 has been carefully optimized to ensure the smoothness of the sliding process and high-precision position control. The tight fit between the slider 5 and the slide groove 3 not only effectively reduces friction and shaking during movement but also withstands large loads, keeping the entire system stable during operation.

[0030] To further enhance the function of the adjustment mechanism, an adjustment screw 4 is also rotatably installed in the slide groove 3. The adjustment screw 4 is driven by a servo motor and is connected to the slider 5 by a thread. When the adjustment screw 4 is rotated, the slider 5 will slide automatically along the slide groove 3. The driving method of the adjustment screw 4 has extremely high positioning accuracy and can achieve nanometer-level position adjustment. This not only simplifies the operation process but also greatly reduces the technical requirements for operators. Users only need to use the servo motor to drive the adjustment screw 4 to easily complete the precise movement of the slider 5, avoiding the errors that may be caused by manual pushing and pulling.

[0031] like Figure 3 As shown, a lifting groove 7 is provided on one side of the machine body 6, and a cylinder 8 is installed at the end of the lifting groove 7. The introduction of the cylinder 8 provides the planetary gear transmission mechanism with vertical movement capability. Through the extension and retraction of the cylinder 8, the height of the tool 27 can be flexibly adjusted. The cylinder 8 can respond quickly and complete the height adjustment to meet diverse processing needs. In addition, the driving method of the cylinder 8 has high stability and controllability, and can complete precise lifting operations in a short time, thereby improving the overall work efficiency.

[0032] A planetary gear transmission mechanism is set on one side of the adjustment mechanism. The lower end of the planetary gear transmission mechanism is fixedly connected to the tool holder 25 through a flange. Specifically, the key components of the planetary gear transmission mechanism include a side plate 11 that slides in the lifting groove 7, a bracket 10, a fixed seat 12, an output shaft 17, a sun gear 18, three sets of planetary gears 19, a gear ring 20, and a first servo motor 28. The side plate 11 is slidably set in the lifting groove 7. The piston end of the cylinder 8 is connected to the side plate 11. When the cylinder 8 extends or retracts, it will drive the side plate 11 and all the structures on it to move up and down, thereby realizing the vertical adjustment of the planetary gear transmission mechanism. This provides a flexible and reliable solution for the height adjustment of the tool 27 and meets the needs of different processing tasks.

[0033] A bracket 10 is fixedly installed on one side of the side plate 11. One end of the bracket 10 is connected to a fixed seat 12. The output shaft 17 is mounted on the fixed seat 12 through an angular contact bearing. One end of the output shaft 17 is fixedly connected to the sun gear 18. Three sets of planetary gears 19 are meshed on the outer side of the sun gear 18. A gear ring 20 is provided on the outer side of the three sets of planetary gears 19. The three sets of planetary gears 19 mesh with the teeth on the inner side of the gear ring 20. A heat dissipation fin 13 is installed on the upper end of the bracket 10. The heat dissipation fin 13 effectively improves the heat dissipation efficiency by increasing the surface area, helping the above structure to maintain a suitable operating temperature range, thereby ensuring the long-term stable operation of the system.

[0034] The output shaft 17 is driven by the first servo motor 28, which is mounted on the upper end of the fixed base 12. When the position of the tool 27 needs to be adjusted, the first servo motor 28 is started first, and the output shaft 17 directly drives the sun gear 18 to rotate. The rotation of the sun gear 18 will drive the three sets of planet gears 19 meshing with it to revolve around the sun gear 18. At the same time, the planet gears 19 will also rotate on their own axis. The outer side of the planet gears 19 meshes with the teeth on the inner side of the gear ring 20, so that the planet gears 19 are affected by the gear ring 20 while revolving. Depending on whether the gear ring 20 is fixed or movable, different transmission ratios and speed differences can be adjusted. When the gear ring 20 is fixed, the planet gear transmission mechanism is a single input. When the gear ring 20 is movable, a dual input system can be realized.

[0035] Planetary gears 19 are rotatably supported on planetary carrier 23 via planetary gear shafts. Planetary carrier 23 has three evenly distributed mounting positions for planetary gears 19. The planetary gear shaft forms a rotating pair with planetary carrier 23 via angular contact bearings. Planetary carrier 23 moves with the movement of planetary gears 19, ultimately transmitting power to output shaft 17. Since the output surface of planetary carrier 23 is connected to tool holder 25 via flange, tool holder 25 can be precisely adjusted.

[0036] To ensure the stability and smooth rotation of the gear ring 20, a support plate 14 is fixedly connected to the lower side of the bracket 10. A rotating groove 15 is provided on the upper surface of the support plate 14. The rotating ring 22 provided on the lower side of the gear ring 20 rotates in the rotating groove 15, so that the gear ring 20 remains stable, reduces friction loss and improves the overall performance of the system.

[0037] An outer ring 21 is provided on the outer side of the gear ring 20, and the two are fixedly connected. A side wheel 24 is rotatably mounted on one side of the bracket 10. The side wheel 24 forms a rotating pair with the bracket 10 through an angular contact bearing. The side wheel 24 meshes with the outer ring 21. The side wheel 24 is driven by the second servo motor 29, which in turn drives the outer ring 21 and the gear ring 20 to rotate. This dual-input system design allows the planetary gear transmission mechanism to flexibly adjust the revolution speed and direction of the planetary gear 19 under different working conditions. Combined with the drive of the sun gear 18 by the first servo motor 28, more precise speed difference adjustment can be achieved, thereby meeting the requirements of high-precision tool setting.

[0038] By designing the inner teeth of the gear ring 20, the teeth of the planetary gear 19, the teeth of the outer ring 21, and the teeth of the side gear 24 into an asymmetrical tooth profile, the asymmetrical tooth profile typically means that one side of the tooth surface is steeper or more inclined than the other side. When the gear is working normally, the steeper side is used for contact, which can provide a tight meshing when rotating in the forward direction. When rotating in the reverse direction, the tooth profile design can also ensure a rapid and smooth transfer to the tooth surface on the other side, thereby avoiding the backlash problem that may occur when the traditional symmetrical tooth profile changes direction. The asymmetrical tooth profile design helps to respond quickly to changes in direction and does not cause delays or jumping phenomena due to backlash during the reversal process.

[0039] In addition, angular contact bearings are used in various key rotating components (such as output shaft 17, planetary gear shaft, and side gear 24) to reduce radial and axial clearances, enabling key rotating components to maintain extremely low clearances in all directions. This ensures precise alignment and tight meshing between gears and reduces errors caused by loosening or minor displacements.

[0040] Through the coordinated operation of the first servo motor 28 and the second servo motor 29, the differential speed fine adjustment function of the planetary gear transmission mechanism is realized. This design can not only quickly complete the coarse adjustment, but also achieve the sub-micron level fine adjustment, which significantly improves the tool setting efficiency and accuracy.

[0041] The support plate 14 has an opening 16 at its center. The opening 16 provides the necessary space for the planetary gear transmission mechanism to drive the tool holder 25 to rotate. The tool holder 25 passes through the opening 16 to ensure that it can rotate freely under the drive of the planetary gear transmission mechanism while maintaining good rigidity and stability.

[0042] The tool holder 25 has an internal insertion interface for inserting the tool 27. The tool 27 is fixed by a locking bolt 26 threaded on one side of the tool holder 25, making the tool 27 replacement process simple and efficient. Users only need to loosen the locking bolt 26 to easily remove or insert a new tool 27, which greatly shortens maintenance time. The tool holder 25 is connected to the planetary carrier 23 through a flange. The planetary carrier 23 moves with the movement of the planetary gear 19 and finally transmits power to the output shaft 17. The output shaft 17 then transmits the rotational torque to the tool holder 25 through the flange, so that the tool 27 can rotate precisely following the movement of the planetary gear transmission mechanism.

[0043] A laser tool setter 9 is installed below the adjustment mechanism at the position corresponding to the tool holder 25. A data analysis device 30 is set on one side of the detection table 1. The data analysis device 30 is connected to the laser tool setter 9 and is used to receive and process tool setting detection data in real time. During tool setting, the tool holder 25 and the tool 27 are adjusted to be close to the initial position of the laser tool setter 9 through the planetary gear transmission mechanism. The laser tool setter 9 emits a beam of light. These beams are distributed at a fixed angle and position, covering the path that the tool 27 may take. As the planetary gear transmission mechanism operates, the tool 27 gradually moves and enters the beam range of the laser tool setter 9. When the cutting edge or other critical parts of the tool 27 block the laser beam, the beam will be partially or completely blocked. The receiver of the laser tool setter 9 detects that the beam is blocked. A trigger signal is immediately generated and transmitted to the data analysis device 30. After receiving the trigger signal, the data analysis device 30 processes and analyzes it in real time. By using the position information of the position of the beam blocking the tool 27, the precise position and attitude of the tool 27 are calculated. The data analysis device 30 feeds back the calculation results to the first servo motor 28 and the second servo motor 29 to form a closed-loop control system. The position of the tool 27 is fine-tuned through the planetary gear transmission mechanism. The fine-tuning process is repeated until the tool 27 reaches the target position. When the position and attitude of the tool 27 meet the preset tool setting requirements, the laser tool setter 9 stops detection, and the system records the final tool setting data. At this time, the tool 27 is in the best working state and can start the subsequent processing task.

[0044] Among them, the laser tool setter 9 typically employs high-precision optical sensors and signal processing algorithms, which can detect position changes at the micrometer or even submicrometer level. The functionality of the data analysis device 30 relies on signal processing and feedback control technologies widely used in the prior art. For example, CNC systems, PLC controllers, or embedded control systems commonly used in the industrial field can all perform such tasks. These technologies are mature and widely used in various precision machining equipment, so there is no need to disclose them in further detail in this invention.

[0045] The core innovation of this invention lies in the planetary gear transmission mechanism and its collaborative design with the laser tool setter 9, rather than the specific implementation of the data analysis device 30. Therefore, the relevant content of the data analysis device 30 is only used as prior art reference to support the functional integrity of the overall system.

[0046] Among them, the planet carrier 23, planet gear 19, gear ring 20, outer ring 21, side gear 24 and sun gear 18 are all made of materials with high rigidity, such as high-strength steel or titanium alloy, because they can provide the necessary rigidity and ensure sufficient durability.

[0047] In summary, the workflow of a tool setting mechanism based on differential speed fine-tuning using a planetary gear system is as follows: During tool setting, the tool holder 25 and the tool 27 are first adjusted to near the initial position of the laser tool setter 9 via the planetary gear transmission mechanism. The laser tool setter 9 emits a beam that covers the path that the tool 27 may take. As the planetary gear transmission mechanism operates, the tool 27 gradually enters the range of the laser beam. The cutting edge blocks the beam, generating a trigger signal. The receiver of the laser tool setter 9 detects the blockage, generates a signal, and transmits it to the data analysis device 30. The data analysis device 30 processes the signal in real time and calculates the precise position and attitude of the tool 27. The calculation results are fed back to the first servo motor 28 and the second servo motor 29. The position of the tool 27 is fine-tuned through the planetary gear transmission mechanism until the target position is reached. The entire process is repeated continuously to ensure high-precision tool setting. After completion, the data is recorded, and the tool 27 is in the optimal working state, ready for subsequent machining tasks. This closed-loop control system significantly improves the efficiency and accuracy of tool setting.

[0048] The above are merely embodiments of the present invention and are not intended to limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A tool setting mechanism based on a planetary gear train for differential speed fine adjustment, characterized in that, include: A sliding lifting mechanism is used to drive the bracket (10), and a planetary gear transmission mechanism is provided at the bracket (10); The cutter body is fixedly connected to the lower end of the planetary gear transmission mechanism; The laser tool setter (9) is positioned below the planetary gear transmission mechanism at the position corresponding to the tool body. The data analysis device (30) is connected to the laser tool setter (9) for receiving and processing tool setting detection data in real time; In the planetary gear transmission mechanism, the output shaft (17) is connected to the sun gear (18), and three sets of planetary gears (19) are meshed on the outer side of the sun gear (18). The three sets of planetary gears (19) are rotatably supported on the planet carrier (23). The output surface of the planet carrier (23) is connected to the cutter body. A gear ring (20) is provided on the outer side of the three sets of planetary gears (19). The three sets of planetary gears (19) mesh with the teeth on the inner side of the gear ring (20). An outer ring (21) is connected to the outer side of the gear ring (20). The outer ring (21) meshes with the side wheel (24). The first servo motor (28) and the second servo motor (29) drive the output shaft (17) and the side wheel (24) respectively.

2. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that, The sliding lifting mechanism includes: an adjustment box (2), with a sliding groove (3) on the upper side, a slider (5) slidingly arranged in the sliding groove (3), and the upper end of the slider (5) connected to the body (6); the body (6), with a lifting groove (7) on one side, and a cylinder (8) installed at the end of the lifting groove (7), the cylinder (8) driving the lifting of the side plate (11), and a bracket (10) fixedly arranged on one side of the side plate (11).

3. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 2, characterized in that: An adjusting screw (4) is rotatably installed inside the slide groove (3), and the adjusting screw (4) is threadedly connected to the slider (5).

4. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: A support plate (14) is fixedly connected to the lower side of the bracket (10) away from the machine body (6). A rotating groove (15) is provided on the upper surface of the support plate (14), and a rotating ring (22) is provided on the lower surface of the gear ring (20). The ring rotates in the rotating groove (15). An opening (16) is provided at the center of the support plate (14), and the blade passes through the opening (16).

5. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: The side wheel (24) is rotatably mounted on the lower side of the bracket (10) near the end of the body (6), and the side wheel (24) forms a rotating pair with the bracket (10) through an angular contact bearing.

6. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: A fixed seat (12) is connected to the upper side of the bracket (10) away from the body (6). The first servo motor (28) is installed on the upper end of the fixed seat (12), and the output shaft (17) is installed on the fixed seat (12) through an angular contact bearing. The second servo motor (29) is installed on the bracket (10) near the body (6).

7. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: The planetary gears (19) are rotatably supported on the planetary carrier (23) via planetary gear shafts. The planetary carrier (23) has three evenly distributed mounting positions for the planetary gears (19). The planetary gear shafts form a rotating pair with the planetary carrier (23) via angular contact bearings.

8. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: The teeth of the planetary gear (19), outer ring (21), side gear (24) and inner teeth of the gear ring (20) are all asymmetrical.

9. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: The blade body includes a handle (25) and a cutting tool (27). The handle (25) is fixedly connected to the output surface of the planetary carrier (23) via a flange. The cutting tool (27) is inserted into the handle (25). The cutting tool (27) is fixed by a locking bolt (26) threaded on one side of the handle (25).

10. The tool setting mechanism based on planetary gear train for differential speed fine adjustment according to claim 1, characterized in that: The upper end of the bracket (10) is provided with heat dissipation fins (13).

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