Preparation method and preparation system for asymmetric cutting edge of cutter

Abstract

The preparation method of the asymmetric cutting edge of the cutter comprises the steps that an intelligent batching device is controlled to conduct automatic liquid preparation according to matching information, and cutting edge preparation liquid is obtained; conveying the cutting edge preparation liquid to a polishing pad of a cutting edge preparation platform; the tool is clamped on a tool clamping assembly, and the target cutting edge of the tool coincides with the rotating central axis of a rotating unit of the tool clamping assembly; and the cutter is controlled to move to the cutting edge preparation platform, and the target cutting edge of the cutter abuts against a polishing pad of the cutting edge preparation platform, so that cutting edge preparation is conducted on the target cutting edge of the cutter. According to the preparation method of the asymmetric cutting edge of the cutter, provided by the embodiment of the invention, automatic preparation of the asymmetric cutting edge of the cutter is realized, manual interference is not needed, the preparation precision is improved, and in addition, automatic preparation of the cutting edge preparation liquid is also realized.

Description

Technical Field

[0001] The invention relates to the technical field of tool production and processing, and in particular to a method for preparing an asymmetric cutting edge of a tool and a system for preparing an asymmetric cutting edge of a tool. Background Art

[0002] The tool is an essential tool in the mechanical manufacturing process. The tool is mainly used to remove the excess part of the material and form the required shape and size of the material. Before the tool is used, the cutting edge of the tool is usually passivated. The traditional method of cutting edge passivation is mainly achieved by mechanical passivation. The passivated cutting edge of the tool is usually simplified to a circle that fits the intersection of the front and rear cutting edges, that is, a symmetrical cutting edge, and the radius of the circle, that is, the blunt circle radius, is used to characterize the cutting edge size. In fact, due to different passivation methods, in most cases the actual cutting edge profile is not a simple arc, but an asymmetric cutting edge. The K factor method is currently commonly used to define the asymmetry of the cutting edge, that is, to extend the contours of the front and rear cutting edges, and use the intersection as the virtual tool tip point to find the angular bisector of the tool tip wedge angle, and set S γ is the distance from the separation point of the rake face to the virtual tool tip, S α is the distance from the flank separation point to the virtual tool tip, S γ and S α The ratio is K. When K = 1, it is a symmetrical cutting edge, and when K ≠ 1, it is an asymmetrical cutting edge. Selecting a reasonable asymmetrical cutting edge shape can improve cutting performance, extend tool life, and improve workpiece surface quality, which has an important influence on the cutting performance of the tool.

[0003] However, the existing asymmetric cutting edge preparation of cutting tools is mostly carried out by traditional mechanical passivation equipment, which has a complex process and the passivation process parameters are selected based on experience, resulting in defects such as fine cracks, scratches, surface / subsurface damage and poor surface quality on the asymmetric cutting edge after passivation. Summary of the invention

[0004] In view of at least some of the problems and shortcomings in the prior art, embodiments of the present invention disclose a method for preparing an asymmetric cutting edge of a tool and a system for preparing an asymmetric cutting edge of a tool.

[0005] Specifically, a method for preparing an asymmetric cutting edge of a tool provided in an embodiment of the present invention includes, for example: controlling an intelligent dosing device to automatically dosing liquid according to ratio information to obtain a cutting edge preparation liquid; transporting the cutting edge preparation liquid to the polishing pad of a cutting edge preparation platform; clamping the tool on a tool clamping assembly, wherein the tool has a target cutting edge, and the target cutting edge of the tool coincides with the rotation center axis of a rotating unit of the tool clamping assembly; controlling the tool to move to the cutting edge preparation platform and placing the target cutting edge of the tool against the polishing pad of the cutting edge preparation platform to prepare the cutting edge of the target cutting edge of the tool.

[0006] On the other hand, an embodiment of the present invention provides a system for preparing an asymmetric cutting edge of a tool, which includes, for example: a frame; a tool drive unit mounted on the frame; a pressure feedback unit connected to the tool drive unit; a tool clamping assembly connected to the tool drive unit and used to install the tool, the tool clamping assembly including a rotating unit, the tool having a target cutting edge, the target cutting edge coincides with the rotation center axis of the rotating unit, and the tool can rotate under the drive of the rotating unit; a cutting edge preparation platform, arranged adjacent to the frame and corresponding to the tool; an intelligent batching device, arranged adjacent to the cutting edge preparation platform; and a control unit, electrically connecting the tool drive unit, the tool clamping assembly, the cutting edge preparation platform and the intelligent batching device.

[0007] It can be seen from the above that the above technical features of the present invention can have one or more of the following beneficial effects: the method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention automatically prepares cutting edge preparation liquid through an intelligent proportioning device and conveys the cutting edge preparation liquid to a cutting edge preparation platform, clamps the tool on a tool clamping assembly and controls the target cutting edge to coincide with the rotation center of a rotating unit of the tool clamping assembly, places the target cutting edge of the tool against a polishing pad and prepares the cutting edge of the target cutting edge of the tool, which solves the problem that the existing asymmetric cutting edge preparation of tools is mostly prepared by traditional mechanical passivation equipment, and the passivation process parameters are selected based on experience so that the asymmetric cutting edge after passivation is not Symmetrical cutting edges have defects such as fine cracks, scratches, surface / subsurface damage and poor surface quality. The automated preparation of asymmetric cutting edges of cutting tools has been realized, which has improved the preparation accuracy. There is no need for manual intervention, which reduces the intensity of manual labor and thus improves production efficiency. The passivation pressure of the cutting tool is dynamically controlled by the pressure feedback unit, which realizes real-time regulation of the passivation pressure of the cutting tool. The passivation pressure of the cutting tool is adjusted dynamically in real time to avoid the current passivation pressure of the cutting tool being too high and affecting the cutting effect of the cutting tool. It can also avoid the current passivation pressure of the cutting tool being too low, resulting in a slow cutting rate or even inability to cut, thereby improving the cutting edge preparation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0009] Figure 1 A flow chart of a method for preparing an asymmetric cutting edge of a tool provided in an embodiment of the present invention.

[0010] Figure 2 for Figure 1 Specific flow chart of step S11 in FIG.

[0011] Figure 3 for Figure 1 Specific flow chart of step S17 in FIG.

[0012] Figure 4a Another schematic flow chart of a method for preparing an asymmetric cutting edge of a tool provided in an embodiment of the present invention.

[0013] Figure 4b for Figure 4a Specific flow chart of step S19 in FIG.

[0014] Figure 5 A schematic front view of a system for preparing an asymmetric cutting edge of a tool provided in an embodiment of the present invention.

[0015] Figure 6 for Figure 5 Schematic diagram of the structure of the middle part.

[0016] Figure 7a Schematic diagram of the three-dimensional structure of the tool.

[0017] Figure 7b for Figure 7a Schematic diagram of another perspective (front view) of the tool.

[0018] Figure 7c for Figure 7b Schematic diagram of the cross section of section AA.

[0019] Figure 7d for Figure 7c A partial enlarged schematic diagram of area B in the middle.

[0020] FIG. 8 is a three-dimensional schematic diagram of an asymmetric cutting edge of a tool.

[0021] Figure 8b for Figure 8a Schematic diagram of another perspective (front view) of the asymmetric cutting edge of the tool.

[0022] Figure 8c for Figure 8b Schematic cross-sectional view of the CC section.

[0023] Figure 8e for Figure 8d A partial enlarged schematic diagram of the E area in the middle.

[0024] Fig. 9 Schematic diagram of the tool being clamped on the tool asymmetric edge preparation system.

[0025] Fig.10 for Figure 5 Schematic diagram of the decomposed structure of the pressure feedback unit.

[0026] Fig.11 for Fig.10 A schematic cross-sectional structure diagram of a pressure feedback unit is shown.

[0027] Fig.12 for Fig.11 A partial enlarged schematic diagram of the F area in the middle.

[0028] Fig.13 for Figure 5 Schematic diagram of the structure of the tool clamping assembly.

[0029] Fig.14 for Figure 5 Schematic diagram of the dimensions of the rotating unit.

[0030] Fig.15a for Figure 5 Schematic diagram of the structure of the intelligent batching device.

[0031] Fig.15b for Fig.15a Schematic diagram of the structure of the magnetic stirring mechanism.

[0032] Fig.16a Schematic diagram of the experimental raw materials in the experimental example.

[0033] Fig.16b Schematic diagram of the local cross-section of the straight edge of the experimental raw material in 16a.

[0034] Fig.16c Schematic diagram of the partial cross-section of the straight edge of the asymmetric cutting edge of the tool prepared as the experimental target of Experimental Example 1.

[0035] Fig.16d , 16f 16h and 16h are schematic diagrams of partial cross-sections of the straight edge in experimental steps 2), 3) and 4) of Experimental Example 1, respectively.

[0036] Fig.16e , 16g 16i and 16i are schematic diagrams of the angle relationship between the tool holder and the polishing pad in experimental steps 2), 3) and 4) of Experimental Example 1, respectively. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] It should also be noted that the division of multiple embodiments in the present invention is only for the convenience of description and should not constitute a special limitation. The features in various embodiments can be combined and referenced to each other without contradiction.

[0040] See also Figure 1 , which shows a method for preparing an asymmetric cutting edge of a tool provided by an embodiment of the present invention. Specifically, the method for preparing an asymmetric cutting edge of a tool includes, for example, the steps of:

[0041] S11: Controlling the intelligent batching device to automatically prepare liquid according to the ratio information to obtain the cutting edge preparation liquid;

[0042] S13: conveying the cutting edge preparation liquid to the polishing pad of the cutting edge preparation platform;

[0043] S15: Clamp the tool on the tool clamping assembly;

[0044] S17: Control the tool to move to the edge preparation platform, and place the target cutting edge of the tool against the polishing pad of the edge preparation platform to perform edge preparation on the target cutting edge of the tool.

[0045] The tool has a target cutting edge. The target cutting edge of the tool includes, for example, a straight edge and a circular arc edge. The target cutting edge has an original cutting edge. After the tool is mounted on the tool clamping assembly, the target cutting edge of the tool is made to coincide with the rotation center of the rotating unit of the tool clamping assembly, more specifically, the original cutting edge of the target cutting edge of the tool is made to coincide with the rotation center axis of the rotating unit of the tool clamping assembly.

[0046] Therefore, the method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention automatically prepares cutting edge preparation liquid through an intelligent proportioning device and conveys the cutting edge preparation liquid to a cutting edge preparation platform, clamps the tool on a tool clamping assembly and controls the target cutting edge to coincide with the rotation center of a rotating unit of the tool clamping assembly, places the target cutting edge of the tool against a polishing pad and prepares the cutting edge of the target cutting edge of the tool, thereby solving the problem that the existing asymmetric cutting edge preparation of tools is mostly prepared by traditional mechanical passivation equipment, and the passivation process parameters are selected based on experience, resulting in defects such as fine cracks, scratches, surface / sub-surface damage and poor surface quality on the asymmetric cutting edge after passivation, realizes the automated preparation of the asymmetric cutting edge of the tool, improves the preparation accuracy, does not require manual intervention, reduces manual labor intensity, and thereby improves production efficiency.

[0047] To facilitate understanding of the present invention, the following Figure 5-16f Each step of the method for preparing the asymmetric cutting edge of a tool in this embodiment is described in detail.

[0048] See also Figure 5 and Figure 6 The method for preparing the asymmetric cutting edge of a tool provided in the embodiment of the present invention is applicable to the system 20 for preparing the asymmetric cutting edge of a tool. The system 20 for preparing the asymmetric cutting edge of a tool is used to perform cutting edge processing on a tool to prepare the asymmetric cutting edge of the tool.

[0049] Figure 7a and 7b The tool 30 can be mounted on the tool asymmetric edge preparation system 20, for example, see Fig. 9 , so as to prepare an asymmetric cutting edge of the tool. The tool 30 is a tool such as a turning tool, a milling cutter, etc. Specifically, the tool 30 includes at least one cutting edge 31. The cutting edge 31 includes, for example, a straight edge 32 and a circular arc edge 33. Figure 7a and 7b The tool 30 shown in the figure includes, for example, a plurality of straight blades 32 and a plurality of arc blades 33. Typically, the cutting edge of the straight blade 32 is in the shape of a straight line, and the cutting edge of the arc blade 33 is in the shape of an arc. The straight blades 32 and the arc blades 33 are, for example, alternately arranged and sequentially connected, that is, the two ends of a straight blade 32 are respectively connected to a segment of the arc blade 33, and the two ends of a segment of the arc blade 33 are respectively connected to a segment of the straight blade 32. For details, see Figure 7a , Figure 7c and Figure 7dThe two sides of the length direction of the straight edge 32 include a first initial blade face 34 and a second initial blade face 35, and the first initial blade face 34 intersects with the second initial blade face 35 to form an original blade tip 36 of the straight edge 31. The first initial blade face 34 may be, for example, an initial back blade face of the straight edge 32, and the second initial blade face 35 may be, for example, an initial front blade face of the straight edge 32. The original blade tip 36 of the entire straight edge 32 is in a straight line state. Similarly, the original blade tip of the arc edge 33 is in a circular ring shape. The target cutting edge mentioned above can be a straight edge 32 or an arc edge 33.

[0050] The method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention is used to cut the target cutting edge 31 of a tool 30. This embodiment takes the straight edge 32 as an example to explain in detail the method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention. It should be noted that for the processing of the circular arc edge 33 of the tool 30, the circular arc edge 33 is firstly modeled, discretized, and fitted to obtain a number of small segments of the straight edge 32, and then the method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention is used to cut the several small segments of the straight edge 32 to achieve the cutting preparation of the circular arc edge 33.

[0051] As mentioned above, see Figure 8a and Figure 8b The asymmetric cutting edge tool 40 obtained after the preparation has at least one cutting edge 41. The cutting edge 41 includes a straight edge 42 and a circular edge 43. Figure 8a and Figure 8b The asymmetric blade tool 40 shown in the figure includes a plurality of straight blades 42 and a plurality of arc blades 43. The straight blades 42 and the arc blades 43 are alternately arranged and sequentially connected. See 8c and 8d. Both sides of the length direction of the straight blade 42 include a first initial blade surface 44 and a second initial blade surface 45. The first initial blade surface 44 corresponds to the first initial blade surface 34, and the second initial blade surface 45 corresponds to the second initial blade surface 35. The straight blade 42 also includes a first transition blade surface 46, a second transition blade surface 47 and a blade arc surface 48, wherein the first transition blade surface 46 is connected between the first initial blade surface 44 and the blade arc surface 48, and the second transition blade surface 47 is connected between the second initial blade surface 45 and the blade arc surface 48. For details, see Figure 8e , Figure 8e for Figure 8d The enlarged partial view of the E part, wherein the first transition blade surface 46 and the first initial blade surface 44 have a first angle α', for example, and the second transition blade surface 47 and the second initial blade surface 45 have a second angle γ', for example. The first angle α' is not equal to the second angle γ', that is, an asymmetric cutting edge. For details, see Figure 8e , Figure 8eWhere P represents the intersection of the first initial blade surface 44 and the second initial blade surface 45, M represents the intersection of the first initial blade surface 44 and the first transition blade surface 46, which can be understood as the contour boundary line between the first initial blade surface 44 and the first transition blade surface 46, and N represents the intersection of the second initial blade surface 45 and the second transition blade surface 47, which can be understood as the contour boundary line between the second initial blade surface 45 and the second transition blade surface 47. For example, there is an angle δ between the first initial blade surface 44 and the second initial blade surface 45. The contour boundary line between the first initial blade surface 44 and the first transition blade surface 46 (i.e. Figure 8e Middle M point) to Figure 8e The distance between point P and Figure 8e MP) is S α , the contour boundary line between the second initial blade surface 45 and the second transition blade surface 47 (i.e. Figure 8e N points) to Figure 8e The distance from point P (e.g. Figure 8e NP) is S γ The radius of the circle where the cutting edge arc surface 48 is located is R 1 .

[0052] Figure 7d The cutting edge of the tool 30 shown in the figure, such as a straight edge, is processed by the tool asymmetric edge preparation system 20 to obtain a Figure 8e The straight edge of the asymmetric cutting edge tool 40 shown, Figure 8e The asymmetric cutting edge of the tool obtained in the embodiment of the present invention is shown in FIG.

[0053] For details, see Figure 5 and Figure 6 The preparation system 20 includes, for example, a frame 100, a tool drive unit 200, a pressure feedback unit 300, a tool clamping assembly 800, a cutting edge preparation platform 400, an intelligent batching device 500, a control unit 600 and a conveying unit 700, wherein the tool drive unit 200, the pressure feedback unit 300, the tool clamping assembly 800, the cutting edge preparation platform 400, the intelligent batching device 500 and the conveying unit 700 are respectively electrically connected to the control unit 600. For example, the control unit 600 is an electronic device with instruction processing and data processing functions, such as an MCU (Microcontroller Unit), a PLC (Programmable Logic Controller), or a DSP (Digital Signal Processor).

[0054] like Figure 5 and Figure 6As shown, the rack 100 is, for example, a component composed of a plurality of panels that can provide support and installation positions for other components. Figure 5 and Fig. 9 The tool drive unit 200 is, for example, mounted on the frame 100, the pressure feedback unit 300 is, for example, connected to the tool drive unit 200, and the tool clamping assembly 800 is connected to the pressure feedback unit 300 and is used to mount the tool 30. The cutting edge preparation platform 400 is, for example, disposed adjacent to the frame 100 and corresponding to the tool 30. The intelligent batching device 500 is, for example, disposed adjacent to the cutting edge preparation platform 400. The conveying unit 700 is, for example, respectively connected to the intelligent batching device 500 and the cutting edge preparation platform 400.

[0055] For details, see Figure 6The tool driving unit 200 includes, for example, a moving unit 210 and a rotating unit 220. The moving unit 210 and the rotating unit 220 are used to adjust the position of the tool 30 mounted on the tool clamping assembly 800. For example, the moving unit 210 includes, for example, a first moving unit 211 and a second moving unit 212. The first moving unit 211 is installed on the frame 100, and the second moving unit 212 is installed on the first moving unit 211. The rotating unit 220 is installed on the second moving unit 212. The first moving unit 211 includes, for example, a first driving motor, a first ball screw and a first ball nut. The first driving motor is, for example, a stepping motor or a servo motor. The first driving motor is installed on the frame 100. The first ball screw is, for example, a slender rod-shaped part. The surface of the first ball screw is provided with a first spiral groove, and a first ball is provided in the first spiral groove. The first ball screw is connected to the output shaft of the first driving motor and can rotate relative to the frame 100. The first ball nut is provided with a first inner hole, and a second spiral groove matching the first spiral groove is provided in the first inner hole. The first ball can roll between the first spiral groove and the second spiral groove. The first ball nut is sleeved on the first ball screw through the first inner hole. The first moving unit 211 can drive the second moving unit 212, the rotating unit 220, the pressure feedback unit 300, the tool clamping assembly 800 and the tool 30 to move in the horizontal direction. The second moving unit 212, for example, includes a first connecting frame, a second driving motor, a second ball screw and a second screw nut. The first connecting frame is connected to the second screw nut. The second driving motor is, for example, a stepping motor or a servo motor. The second driving motor is arranged at one end of the first connecting frame. One end of the second ball screw is connected to the output shaft of the second driving motor and can rotate relative to the first connecting frame. The second ball screw is, for example, a slender rod-shaped part, and a third spiral groove is provided on the surface of the second ball screw, and a second ball is arranged in the third spiral groove. The second ball nut is provided with a second inner hole, and the second inner hole is provided with a fourth spiral groove matched with the second spiral groove. The second ball can roll between the third spiral groove and the fourth spiral groove. The second ball nut is sleeved on the second ball screw through the second inner hole. The second mobile unit 212 can drive the rotating unit 220, the pressure feedback unit 300, the tool clamping assembly 800 and the tool 30 to move in a vertical direction such as the x direction. By setting up multiple mobile units, the position adjustment of the tool 30 in multiple directions can be achieved, thereby facilitating the preparation of the cutting edge thereof. In addition, the rotating unit 220 is, for example, a device capable of performing rotational motion, such as a turntable, so as to drive the pressure feedback unit 300, the tool clamping assembly 800 and the tool 30 to rotate.

[0056] See also Fig.10 , Fig.11 and Fig.12The pressure feedback unit 300 includes, for example, an adapter 310, a fixed sleeve 320, a movable sleeve 330, a bottom plate 340, an elastic member 350, a pad 360 and a pressure sensor 370, wherein the target cutting edge of the tool 30, such as the original cutting edge of the target cutting edge, coincides with the rotation center axis of the rotating unit 810, and the tool 30 can rotate under the drive of the rotating unit 810. Specifically, the adapter 310 is connected to the tool driving unit 200, and specifically, the adapter 310 is connected to the end of the rotating unit 220 away from the second movable unit 212, for example, through a threaded connector. The fixed sleeve 320 is connected to the adapter 310 at one end, such as the upper end, for example, through a threaded connector. The fixed sleeve 320 is provided with a first accommodating cavity 321 and a first opening 322, the first opening 322 is connected to the first accommodating cavity 321, and the first opening 322 is provided at the end of the fixed sleeve 320 away from the adapter 310. The movable sleeve 330 is, for example, provided with a first through hole 331, and the movable sleeve 330 is sleeved outside the fixed sleeve 320 through the first through hole 331. The bottom plate 340 is provided in the first through hole 331, and a first protrusion 341 is provided on one side of the bottom plate 340. The elastic member 350 is, for example, provided in the first through hole 331 and the first accommodating cavity 321, and one end of the elastic member 350 abuts in the first accommodating cavity 321, and the other end of the elastic member 350 abuts on a side of the bottom plate 340 away from the first protrusion 341. The pad 360 is connected to one end of the movable sleeve 330 away from the fixed sleeve 320 and is located between the movable sleeve 330 and the rotating unit 810, and a second through hole 361 is provided on the pad 360, and a limiting portion 362 is provided at one end of the second through hole 361 adjacent to the bottom plate 340. The pressure sensor 370 is, for example, disposed in the second through hole 361 and between the limiting portion 362 and the moving unit 810, the first protrusion 341 abuts against the pressure sensor 370 through the second through hole 361, and the pressure sensor 370 is electrically connected to the control unit 600. For example, the pressure sensor 370 is, for example, a pressure sensor. The pressure sensor 370 is provided to obtain the current passivation pressure of the tool 30 from the polishing pad 410. The limiting portion 362 is provided to limit the pressure sensor 370.

[0057] As mentioned above, see Fig.11The pressure feedback unit 300 further includes a guide member 380, the opposite ends of which are connected between the adapter 310 and the pad 340, a second protrusion 323 is provided on the outer wall of the fixed sleeve 320, and an anti-rotation groove 332 is provided on the side wall of the movable sleeve 330, the anti-rotation groove 332 is connected to the first through hole 331, and the second protrusion 323 extends out of the anti-rotation groove 332. The guide member 380 is provided to guide the movement of the movable sleeve 330. The cooperation between the second protrusion 323 and the anti-rotation groove 332 can prevent the movable sleeve 330 from rotating relative to the fixed sleeve 320.

[0058] Further, see Fig.13 , the rotating unit 810 includes, for example, a fixing seat 811, a worm 812, a worm wheel 813, and a motor 814, wherein the fixing seat 811 is connected to the backing plate 340, the fixing seat 811 is provided with an opening 8111, the worm 812 is inserted into the opening, the worm wheel 813 is connected to the fixing seat 811 and meshes with the worm 812, and the output shaft of the motor 814 is connected to the worm 812. Based on the above, the tool clamping assembly 800 also includes, for example, a tool fixing member 820, the tool fixing member 820 has a first fixing portion 821 and a second fixing portion 822, an angle β is formed between the first fixing portion 821 and the second fixing portion 822, the first fixing portion 821 is connected to the worm wheel 813, for example, by a threaded connection, and the second fixing portion 822 is used to connect the tool 30. The angle β between the first fixing portion 821 and the second fixing portion 822 satisfies the following formula (1):

[0059] arcsin(h / R)≤β<δ / 2, (1)

[0060] Among them, see Fig.13 and Fig.14 , Fig.14 Schematic diagram of the relative position relationship between the tool fixing member 820 and the rotation center of the rotating unit 810 in the tool clamping assembly 800. h is the distance from the mounting surface 8211 of the first fixing portion 821 on the worm gear 813 to the rotation center of the rotating unit 810, R is the rotation radius of the rotating unit 810, δ is the angle between the first initial blade surface 34 and the second initial blade surface 35 of the tool 30 (see Figure 7d ). Wherein, h, R and δ are all known quantities. By limiting the position between the target cutting edge of the tool and the rotating unit 810, the target cutting edge of the tool can be made to coincide with the rotation center axis of the rotating unit, which can improve the manufacturing accuracy of the asymmetric cutting edge of the tool, and further improve the cutting performance of the asymmetric cutting edge of the tool.

[0061] Further, see Figure 5The cutting edge preparation platform 400 is, for example, disposed adjacent to the frame 100 and corresponding to the original cutting edge 36 of the tool 30. For example, see Figure 6 , the cutting edge preparation platform 400 includes, for example, a platform frame 440, a polishing pad 410, a transmission device 430, and a motor 420. The platform frame 440 is used to provide an installation position and support for the polishing pad 410, the transmission device 430, and the motor 420. The transmission device 430 is connected to the output shaft of the motor 420 and is installed on the platform frame 440. The motor 420 is also installed on the platform frame 440 and is electrically connected to the control unit 600. The polishing pad 410 is used to carry the cutting edge preparation liquid and to prepare the cutting edge of the tool 30. The motor 420 is, for example, a stepping motor or a servo motor, etc., for driving the polishing pad 410. The transmission device 430 includes, for example, a gear box or other transmission components, which is not limited in this application.

[0062] As mentioned above, see Fig.15a, the intelligent batching device 500, for example, includes: a base 510, a column 520, a power assembly 530, a first transmission assembly 540, a batching platform 550, a mixer 560 and a plurality of storage tanks 570. The column 520 is, for example, a slender cylindrical component, one end of which is connected to the base 510, the power assembly 530 is, for example, arranged on the base 510 and electrically connected to the control unit 600, for example, the power assembly 530 is, for example, a motor such as a stepping motor or a servo motor, etc., which is not specifically limited in this application. The first transmission assembly 540 is, for example, connected to the power assembly 530. One end of the first transmission assembly 540 is connected to the output shaft of the power assembly 530, and the other end of the first transmission assembly 540 is connected to the batching platform 550. The batching platform 550 is, for example, connected to the first transmission assembly 540, and the batching platform 550 is sleeved on the column 520 and can rotate relative to the column 520. Preferably, the batching platform 550 has a gap with the base 510 and the column 520, so as to avoid the batching platform 550 from contacting, interfering with or even colliding with them when rotating. For example, the first transmission assembly 540 is a transmission gear, a transmission belt or other transmission element, so as to utilize the transmission capacity of the first transmission assembly 540 to enable the batching platform 550 to rotate relative to the column 520 under the drive of the power assembly 530. Preferably, the first transmission assembly 540 includes a first transmission member 541 and a second transmission member 542, and the first transmission member 541 and the second transmission member 542 are both bevel gears, and the first transmission member 541 and the second transmission member 542 are meshed for transmission, and the axial direction of the first transmission member 541 is, for example, arranged in the same direction as the axial direction of the output shaft of the power assembly 530, and the axial direction of the second transmission member 542 is, for example, arranged perpendicular to the axial direction of the first transmission member 541. The transmission direction can be changed through the bevel gear meshing transmission of the first transmission member 541 and the second transmission member 542, so that the position between the batching platform 550 and the driving assembly 530 can be more reasonably arranged, thereby saving the layout space of the equipment.

[0063] Further, the mixer 560 is, for example, disposed on the batching platform 550, and the batching platform 550 has, for example, a groove for placing the mixer 560. The mixer 560 is, for example, a mixing cup, and the mixing cup is, for example, a beaker. The mixing cup is used to hold and mix various raw materials obtained from the plurality of storage tanks 570, thereby obtaining the cutting edge preparation liquid.

[0064] Furthermore, if Fig.15bAs shown, the intelligent batching device 50 may further include a stirrer 590 and a magnetic stirring mechanism 590. The stirrer 590 is placed in the mixer 560, and the stirrer 590 is a magnetic material, which can rotate in the mixer 560 under the action of a magnetic field. Typically, the magnetic stirring mechanism 580 includes, for example, a fixed frame 585, a rotating motor 582, a placement platform 583 and a magnetic element 584. The magnetic stirring mechanism 580 is located below the batching platform 550. The fixed frame 585 is connected to the lower surface of the batching platform 550 (the lower side of the batching platform 550 in Figure 15). The rotating motor 582 is, for example, a stepping motor or a servo motor, etc., and is connected to the fixed frame 585. The placement platform 583 is connected to the output shaft of the rotating motor 582, and the magnetic element 584 is arranged on the placement platform 583 and corresponding to the mixer 560. The magnetic element 584 is, for example, a magnet, and of course, it can also be other elements that can generate a magnetic field. The rotating motor 582 is also electrically connected to the control unit 600. Under the control of the control unit 600, the rotating motor 582 drives the placement platform 583 and the magnetic element 584 to rotate and generate a rotating magnetic field. The rotating magnetic field passes through the mixer 560 and generates a magnetic force on the stirrer 590 in the mixer 560. Since the stirrer 590 is a magnetic material, it will try to keep consistent with the direction of the rotating magnetic field under the action of the rotating magnetic field. As the magnetic field continues to rotate, the stirrer 590 is also forced to rotate, thereby stirring the cutting edge preparation liquid in the mixer. By connecting the magnetic stirring mechanism 580 to the control unit 600, the automatic stirring function of the cutting edge preparation liquid can be realized, and the overall structure can be made simple and save structural space.

[0065] Based on the above, Fig.15aAs shown, a plurality of storage tanks 570 are, for example, respectively arranged on the pillars 520, and a discharge port 572 is arranged at the bottom of each storage tank 570, and a metering unit 571 and a control valve 573 are arranged at the discharge port 572, and the metering unit 571 and the control valve 573 are respectively electrically connected to the control unit 700. The discharge port 572 of one storage tank 570 among the plurality of storage tanks 570 corresponds to the mixer 560. For example, the storage tank 570 stores one or more raw materials of the edge preparation liquid, and the raw materials here can be, for example, hydrogen peroxide, distilled water, starch, dispersant, etc. The raw materials in the storage tank 570 are discharged into the mixer 560 through the discharge port 572. The control valve 573 is, for example, a flow control valve, which is used to control the discharge or stop of the raw materials in the storage tank 570 under the control of the control unit 600. The metering unit 571 is, for example, a flow meter, for measuring the raw materials discharged from the discharge port 572, and transmitting the measured value to the control unit 600. When the measured value reaches the threshold value that meets the ratio information, the control unit 600 sends a control instruction to close the control valve 573 to stop the discharge. The control unit 600 controls the power assembly 530 to rotate and eventually drives the mixer 560 to rotate to the bottom of another storage tank 570 that needs to be discharged, and controls the control valve 573 of another storage tank 570 to open and measure the discharge amount in real time. When the measured value of another storage tank 570 reaches the threshold value that meets the ratio information, the control unit 600 sends a control instruction to close the control valve 573 of another storage tank 570 to stop the discharge, and so on until the discharge of all raw materials is completed. The metering unit 571 and the control unit 600 are set to accurately control the discharge amount of the raw materials. Preferably, the number of mixers 560 is, for example, multiple, and simultaneous batching of different recipes can be achieved by setting multiple mixers 560. For example, the mixing cup moves to the bottom of different storage tanks 570 under the rotation of the batching platform 550, so as to receive different raw materials. The stirrer rotates in the mixing cup under the influence of the magnetic field of the batching platform 550, thereby stirring the various raw materials in the mixture to ensure that the various raw materials are fully mixed.

[0066] As mentioned above, see Figure 6 The delivery unit 700 is, for example, a peristaltic pump, one end of which is connected to the mixer 560 and the other end is close to the polishing pad 410 . The delivery unit 700 is used to deliver the prepared edge preparation liquid to the polishing pad 410 for processing and preparing the tool 30 .

[0067] Combine the following Figure 1-15b The method for preparing an asymmetric cutting edge of a tool provided in an embodiment of the present invention can be used in a system 20 for preparing an asymmetric cutting edge of a tool, and the specific process is as follows.

[0068] First, the control unit 600 controls the intelligent batching device 500 to automatically prepare liquid according to the ratio information to obtain the cutting edge preparation liquid (corresponding to Figure 1 S11), wherein the proportion information includes, for example, raw material information and proportion information. Specifically, the control unit 600 controls the batching platform 550 to rotate according to the raw material information to drive the mixer 560 on the batching platform 550 to rotate to the target storage tank 570 that matches the raw material information in sequence. Based on the above, the control unit 600 controls the control valve 573 installed at the target storage tank 570 to open, and controls the metering unit 571 to measure the discharge amount, and controls the control valve 573 to close to stop the discharge when the discharge amount reaches the threshold, that is, the discharge port 572 of the target storage tank 570 is completed to discharge a certain amount of raw materials into the mixer 560. Among them, the metering unit 571 measures the raw materials discharged from the discharge port 572 of the target storage tank 570, and when the discharge amount of the raw materials is the same as the predetermined proportion information, the control unit 600 controls the target storage tank 560 to stop discharging to complete the discharge. Furthermore, the stirrer in the mixer 560 rotates under the influence of the magnetic field of the magnetic stirring mechanism under the batching platform 550 to stir the various raw materials in the mixer 560 to obtain the cutting edge preparation liquid. It should be noted that the cutting edge preparation liquid requires, for example, multiple raw materials. After the batching of one raw material is completed, the batching platform 550 rotates to drive the mixer 560 to rotate to the discharge port corresponding to the next target storage tank to batch the next raw material, until the batching of all raw materials of the cutting edge preparation liquid is completed to obtain the cutting edge preparation liquid.

[0069] Secondly, the delivery unit 700 delivers the edge preparation liquid to the polishing pad 410 of the edge preparation platform 400 (corresponding to Figure 1 (S13).

[0070] Based on the above, the tool 30 is clamped on the tool clamping assembly 800 (corresponding to Figure 1 S15). Here, for example, the tool 30 can be clamped on the tool clamping assembly 800 manually, or the tool 30 can be clamped on the tool clamping assembly 800 by a robot arm, etc., and the present application does not limit this. Specifically, the tool 30 is clamped on the second fixing portion 822 of the tool fixing member 820. Among them, the target cutting edge of the tool 30 coincides with the rotation center axis of the rotating unit 810. In this way, the manufacturing accuracy of the asymmetric cutting edge of the tool can be improved, and then the cutting performance of the asymmetric cutting edge of the tool can be improved.

[0071] Furthermore, the tool clamping assembly 800 controls the tool 30 to move to the edge preparation platform 400 under the control of the control unit 600, and places the target cutting edge of the tool 30 against the polishing pad 410 of the edge preparation platform 400, so as to perform edge preparation (corresponding to Figure 1 (S17).

[0072] Specifically, the control unit 600 controls the rotating unit 810 to rotate to drive the first initial blade surface 34 of the target cutting edge of the tool 30 to form a first angle with the polishing pad 410, and controls the first initial blade surface 34 to abut against the polishing pad 410 to obtain a first transition blade surface (corresponding to Figure 3 Further, the control unit 600 controls the rotating unit 810 to rotate so as to drive the second initial blade surface 35 of the target cutting edge to form a second angle with the polishing pad, and controls the second initial blade surface 35 to abut against the polishing pad to obtain a second transition blade surface, wherein the second angle is not equal to the first angle (corresponding to Figure 3 In S174). Based on the above, the control unit 600 controls the vertex formed by the intersection of the first transition blade surface and the second transition blade surface to abut against the polishing pad, and controls the rotating unit 810 to rotate and swing back and forth to form a cutting edge arc surface (corresponding to Figure 3 In this way, the target cutting edge of the tool is prepared.

[0073] During the preparation of the target cutting edge, the pressure sensor 370 dynamically controls the passivation pressure of the tool 30 under the control of the control unit 600. Specifically, the pressure sensor 370 obtains the current passivation pressure of the tool 30 from the polishing pad under the control of the control unit 600. After receiving the current passivation pressure, the control unit 600 compares it with the predetermined pressure to obtain a pressure comparison result, wherein the predetermined pressure is, for example, a pre-set pressure value, and the control unit 600 also controls the displacement of the tool 30 in the first direction according to the pressure comparison result to dynamically control the passivation pressure of the tool 30. That is, the control unit 600 controls the tool driving unit 200, for example, according to the pressure comparison result to control the displacement of the tool 30 in the first direction, such as the x direction, and specifically, the control unit 600 controls the first moving unit 211 to move along the first direction according to the pressure comparison result to drive the tool to move.

[0074] As mentioned above, when the pressure comparison result shows that the difference between the current passivation pressure and the predetermined pressure is less than the pressure threshold, the control unit 600 controls the first moving unit 211 in the moving unit 210 to drive the tool 30 to move toward the polishing pad 410 along the first direction to increase the passivation pressure of the tool 30. For example, the pressure threshold and the predetermined pressure mentioned here are, for example, data preset in the control unit 600 in advance, and the passivation pressure of the tool 30 is dynamically monitored and adjusted in real time to avoid the current passivation pressure of the tool 30 being too large to affect the cutting effect of the tool 30, and to avoid the current passivation pressure of the tool 30 being too small to cause low processing efficiency of the tool 30.

[0075] The method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention automatically prepares cutting edge preparation liquid through an intelligent batching device and conveys the cutting edge preparation liquid to a cutting edge preparation platform, clamps the tool on a tool clamping assembly and controls the target cutting edge to coincide with the rotation center of a rotating unit of the tool clamping assembly, places the target cutting edge of the tool against a polishing pad and prepares the cutting edge of the target cutting edge of the tool, thereby solving the problem that the existing asymmetric cutting edge preparation of tools is mostly prepared by traditional mechanical passivation equipment, and the passivation process parameters are selected based on experience, so that the asymmetric cutting edge after passivation has fine cracks, scratches, and surface marks. The problems of surface / sub-surface damage and poor surface quality have been solved, and the automated preparation of the asymmetric cutting edge of the tool has been realized, which has improved the preparation accuracy. There is no need for manual intervention, which reduces the intensity of manual labor and thus improves production efficiency. The passivation pressure of the tool is dynamically controlled by the pressure feedback unit, and real-time regulation of the passivation pressure of the tool is realized. The passivation pressure of the tool is adjusted dynamically in real time to avoid the current passivation pressure of the tool being too high and affecting the cutting effect of the tool, and to avoid the current passivation pressure of the tool being too low and resulting in a slow cutting rate or even failure to achieve cutting, thereby improving the edge preparation accuracy.

[0076] In order to better illustrate the method for preparing the asymmetric cutting edge of a tool provided in an embodiment of the present invention, the preparation of the straight edge of the asymmetric cutting edge of a tool is specifically described below.

[0077] Experimental example: Straight edge preparation of asymmetric cutting edge of tool

[0078] Experimental materials and equipment: Cutting tool 50 (see Fig.16a and 16b ), the tool 50 includes a straight edge 52, and the two sides of the straight edge in the length direction include a first initial blade surface 54 and a second initial blade surface 55, and the first initial blade surface 54 and the second initial blade surface 55 intersect to form an original blade tip 56 of the straight edge. The first initial blade surface 54 and the second initial blade surface 55 have an angle δ between them, δ=79°. Among them, the angle β between the first fixing part 821 and the second fixing part 822 of the tool fixing part 820 is 40°, and the rotation radius R of the rotating unit 810 is 68.6mm ( Fig.14 R in the figure), wherein the distance h from the mounting surface of the first fixing portion 821 on the worm gear 813 in the rotating unit 810 to the rotation center of the rotating unit 810 is 42 mm ( Fig.14 h) in.

[0079] It should be noted that the angle δ between the first initial blade surface 54 and the second initial blade surface 55 is 79°, and the angle of bisect should be 39.5°, while the angle β between the first fixing portion 821 and the second fixing portion 822 is 40°, so the rotation unit 810 rotates 0.5° to bisect the angle δ between the first initial blade surface 54 and the second initial blade surface 55, and the original blade tip 56 of the tool 50 abuts the polishing pad 410. The control unit 600 adjusts the rotation angle of the rotation unit 810 to 0°. The tool fixing member 820, for example, has a tool profile groove on one side.

[0080] Experimental purpose: To prepare a tool with an asymmetric cutting edge 60. Fig.16c The asymmetric cutting edge 60 of the tool includes a straight cutting edge, and the two sides of the length direction of the straight cutting edge include a first initial cutting edge 64 and a second initial cutting edge 65. The straight cutting edge also includes a first transition cutting edge 66, a second transition cutting edge 67 and a cutting edge arc surface 68, wherein the first transition cutting edge 66 is connected between the first initial cutting edge 64 and the cutting edge arc surface 68, and the second transition cutting edge 67 is connected between the second initial cutting edge 65 and the cutting edge arc surface 68. Specifically, the first transition cutting edge 66 and the first initial cutting edge 64 have a first angle of α', for example, and the second transition cutting edge 67 and the second initial cutting edge 45 have a second angle of γ', for example. The first angle α' is not equal to the second angle γ'. Fig.16d Where P is, for example, the intersection line of the first initial blade surface 64 and the second initial blade surface 65, M is, for example, the intersection line between the first initial blade surface 64 and the first transition blade surface 66, and N is, for example, the intersection line between the second initial blade surface 65 and the second transition blade surface 67, and the first initial blade surface 64 and the second initial blade surface 65 have an angle δ. Fig.16d The distance between MP is S α , Fig.16d The distance between NPs is S γ The radius of the circle where the cutting edge arc surface 48 is located is R 1 Specifically, the specific values ​​of the above related parameters are: R 1 =50μm, S γ =90μm,γ'=12°,S α =80μm, α'=9°.

[0081] Experimental steps:

[0082] 1) According to the ratio information, the intelligent proportioning device 500 is controlled to automatically proportion liquid to obtain the cutting edge preparation liquid, and the cutting edge preparation liquid is conveyed to the polishing pad 410 of the cutting edge preparation platform 400 through the conveying unit 700 .

[0083] 2) See Fig.16d and 16e , Fig.16eThe dashed line is the initial position of the tool fixing member 820 before it is rotated, and the dashed line is the position of the tool fixing member 820 after it is rotated. The tool 50 is reversely mounted on the tool fixing member 820. The reverse mounting here is, for example, to fit the second initial blade surface 55 to the side of the tool fixing member 820 that does not have the tool contour groove, the first initial blade surface 54 does not contact the tool fixing member 820, and the original blade tip 56 contacts the polishing pad 410. For details, see Fig.16e Since the first included angle α' between the first transition blade surface 66 and the first initial blade surface 64 in the asymmetric cutting edge 60 of the tool to be prepared is 9°, the included angle between the first initial blade surface 54 of the tool 50 and the polishing pad 410 needs to be 9°. Then the rotating unit 810 drives the tool fixing member 820 to rotate 48° clockwise from the initial position. At this time, the included angle between the first initial blade surface 54 and the polishing pad 410 is exactly 9°, so that the first initial blade surface 54 is processed to obtain the first transition blade surface 56. When S α When the length reaches 80 μm, the preparation is completed. Fig.16d The area PMQ in the middle is the part cut off in this step.

[0084] 3) See Fig.16f and 16g , Figure 16g The dashed line in the middle is the initial position of the tool fixing member 820 before it is rotated, and the dashed line is the position of the tool fixing member 820 after it is rotated. The tool 50 is mounted upright on the tool fixing member 820. The upright mounting here is, for example, to fit the second initial blade surface 55 to the side of the tool fixing member 820 having the tool contour groove. Point P in the figure is in contact with the polishing pad 410. Specifically referring to the figure, since the second angle γ' between the second transition blade surface 67 and the second initial blade surface 45 in the asymmetric cutting edge 60 of the tool to be prepared is 12°, the angle between the second initial blade surface 55 of the tool 50 and the polishing pad 410 needs to be 12°. Then, the rotating unit 810 drives the tool fixing member 820 to rotate counterclockwise by 28° from the initial position. At this time, the angle between the second initial blade surface 55 and the polishing pad 410 is 12°, so that the second initial blade surface 55 is processed to obtain the second transition blade surface 57. When S γ When the length reaches 90 μm, the preparation is completed. Fig.16d The area PMQ in the middle is the part cut off in this step. Fig.16f The area NQT in the figure is the part cut off in this step.

[0085] 4) See Figure 16h and 16i , Fig.16iThe dashed line in the middle is the initial position of the tool fixing member 820 before it is rotated, and the dot-dash line is the position of the tool fixing member 820 after it is rotated. The tool 50 is mounted upright on the tool fixing member 820. The upright mounting here, for example, is to fit the second initial cutting surface 55 to the side of the tool fixing member 820 having the tool contour groove. Point P in the figure is in contact with the polishing pad 410. The rotating unit 810 drives the tool fixing member 820 to rotate 7° clockwise from the initial position, so that the line between point P and the center point O of the circle where the cutting edge arc surface 58 is located is perpendicular to the polishing pad 410. Then the rotating unit 810 drives the tool fixing member 820 to swing counterclockwise by 43° first, and then swing clockwise by 36° after returning to the normal position, and swings back and forth in this way. When the distance between point P and point T (i.e. Figure 16h When d3) is 28 μm, the radius of the circle where the cutting edge arc surface 58 is located is R 1 The passivation of the arc is 50μm. Figure 16h The TJL area in the figure is the part cut off in this step.

[0086] In this way, the preparation of the asymmetric cutting edge 60 of the tool is completed.

[0087] In addition, the aforementioned embodiments are merely exemplary descriptions of the present invention. On the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the present invention is not violated, the technical solutions of the various embodiments may be arbitrarily combined and used in combination.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing an asymmetric cutting edge of a tool, characterized in that: include: According to the ratio information, the intelligent batching device is controlled to automatically prepare the liquid to obtain the cutting edge preparation liquid; conveying the cutting edge preparation liquid to the polishing pad of the cutting edge preparation platform; Clamping a tool on a tool clamping assembly, wherein the tool has a target cutting edge, and the target cutting edge of the tool coincides with a rotation center axis of a rotating unit of the tool clamping assembly; The tool is controlled to move to the edge preparation platform, and the target cutting edge of the tool is placed against the polishing pad of the edge preparation platform to perform edge preparation on the target cutting edge of the tool.

2. The method for preparing an asymmetric cutting edge of a tool according to claim 1, characterized in that: The ratio information includes raw material information and ratio information; the intelligent batching device is controlled according to the ratio information to automatically prepare the liquid to obtain the cutting edge preparation liquid, specifically including: Controlling the batching platform to rotate according to the raw material information to drive the mixer on the batching platform to rotate to the target storage tank matching the raw material information in sequence; Controlling the target storage tank to discharge materials according to the proportion information by a metering unit installed on the target storage tank; as well as The various raw materials in the mixer are stirred to obtain the cutting edge preparation liquid.

3. The method for preparing an asymmetric cutting edge of a tool according to claim 1, characterized in that: Also includes: Dynamically controlling the passivation pressure of the tool through a pressure feedback unit; The dynamically controlling the passivation pressure of the tool through the pressure feedback unit specifically includes: Acquiring the current passivation pressure exerted on the tool from the polishing pad through the pressure feedback unit; Comparing the current passivation pressure with a predetermined pressure to obtain a pressure comparison result; The displacement of the tool in a first direction is controlled according to the pressure comparison result to dynamically control the passivation pressure of the tool.

4. The method for preparing an asymmetric cutting edge of a tool according to claim 3, characterized in that: The controlling the displacement of the tool in the first direction according to the pressure comparison result to dynamically control the passivation pressure of the tool is specifically: When the pressure comparison result is that the difference between the current passivation pressure and the predetermined pressure is smaller than the pressure threshold, the moving unit is controlled to drive the tool to move toward the polishing pad along the first direction to increase the passivation pressure of the tool.

5. The method for preparing an asymmetric cutting edge of a tool according to claim 1, characterized in that: The step of controlling the tool to move to the edge preparation platform and placing the target cutting edge of the tool against the polishing pad of the edge preparation platform to perform edge preparation on the target cutting edge of the tool comprises: Controlling the rotation unit to rotate so as to drive the first initial blade surface of the target cutting edge to form a first angle with the polishing pad, and controlling the first initial blade surface to abut against the polishing pad to obtain a first transition blade surface; Controlling the rotation unit to rotate so as to drive the second initial blade surface of the target cutting edge to form a second angle with the polishing pad, and controlling the second initial blade surface to abut against the polishing pad to obtain a second transition blade surface, wherein the second angle is not equal to the first angle; and The vertex formed by the intersection of the first transition blade surface and the second transition blade surface is controlled to abut against the polishing pad, and the rotating unit is controlled to rotate and swing back and forth to form a cutting edge arc surface between the first transition blade surface and the second transition blade surface.

6. A system for preparing an asymmetric cutting edge of a tool, characterized in that: include: frame; A tool drive unit is mounted on the frame; A pressure feedback unit connected to the tool drive unit; A tool clamping assembly, connected to the pressure feedback unit and used to install a tool, the tool clamping assembly includes a rotating unit, the tool has a target cutting edge, the target cutting edge coincides with the rotation center axis of the rotating unit, and the tool can rotate under the drive of the rotating unit; A cutting edge preparation platform, disposed adjacent to the frame and corresponding to the cutting tool; An intelligent batching device is arranged adjacent to the cutting edge preparation platform; as well as A control unit is electrically connected to the tool drive unit, the pressure feedback unit, the tool clamping assembly, the cutting edge preparation platform and the intelligent batching device.

7. The system for preparing an asymmetric cutting edge of a tool according to claim 6, characterized in that: The intelligent batching device comprises: Base; A column, one end of which is connected to the base; A power assembly, disposed on the base and electrically connected to the control unit; A first transmission assembly connected to the power assembly; A batching platform connected to the first transmission assembly, the batching platform is sleeved on the column and can rotate relative to the column; A mixer, disposed on the batching platform; and A plurality of storage tanks are respectively arranged on the columns, each of the storage tanks is provided with a discharge port, a metering unit is provided at the discharge port, the metering unit is electrically connected to the control unit, and the discharge port of one of the plurality of storage tanks corresponds to the mixer.

8. The system for preparing an asymmetric cutting edge of a tool according to claim 6, characterized in that: The pressure feedback unit comprises: An adapter, connected to the tool drive unit; A fixed sleeve, one end of which is connected to the adapter, the fixed sleeve is provided with a first accommodating cavity and a first opening, the first opening is connected to the first accommodating cavity, and the first opening is provided at one end of the fixed sleeve away from the adapter; The movable sleeve is provided with a first through hole, and the movable sleeve is sleeved outside the fixed sleeve through the first through hole; A bottom plate, arranged in the first through hole, and a first protrusion is arranged on one side of the bottom plate; an elastic member, disposed in the first through hole and the first accommodating cavity, one end of the elastic member abutting against the first accommodating cavity, and the other end of the elastic member abutting against a side of the bottom plate away from the first protrusion; A pad, connected to one end of the movable sleeve away from the fixed sleeve and located between the movable sleeve and the rotating unit, wherein a second through hole is provided on the pad, and a limiting portion is provided at one end of the second through hole adjacent to the bottom plate; A pressure sensor is arranged in the second through hole and located between the limiting portion and the moving unit. The first protrusion abuts against the pressure sensor through the second through hole. The pressure sensor is electrically connected to the control unit.

9. The system for preparing an asymmetric cutting edge of a tool according to claim 8, characterized in that: The pressure feedback unit also includes a guide member, the opposite ends of which are connected between the adapter and the pad; a second protrusion is provided on the outer side wall of the fixed sleeve, and an anti-rotation groove is provided on the side wall of the movable sleeve, the anti-rotation groove is connected to the first through hole, and the second protrusion extends out of the anti-rotation groove.

10. The system for preparing an asymmetric cutting edge of a tool according to claim 8, characterized in that: The rotating unit comprises: A fixing seat connected to the pad, the fixing seat being provided with an opening; A worm screw is inserted into the opening; A worm gear connected to the fixing seat and meshing with the worm; a motor, whose output shaft is connected to the worm; Wherein, the tool clamping assembly further comprises a tool fixing member, the tool fixing member comprises a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion form a third included angle, the first fixing portion is connected to the worm gear member, and the second fixing portion is used to connect the tool; Wherein, the third angle β satisfies the following formula: arcsin(h / R)≤β<δ / 2; Among them, δ is the angle between the first initial cutting surface and the second initial cutting surface of the tool; h is the distance from the mounting surface of the first fixing part on the worm gear to the rotation center of the rotating unit; R is the rotation radius of the rotating unit.

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