High-precision numerical control machine tool cutter for machining guide plate groove

Abstract

The invention relates to the technical field of numerical control grinding machines, in particular to a high-precision numerical control machine tool cutter for guide plate groove machining, which comprises a grinding wheel coaxially and fixedly connected with a spindle, the spindle comprises a connecting section, a limiting section and a threaded section from top to bottom, and an upper clamping plate and a lower clamping plate are coaxially arranged on the upper side and the lower side of the grinding wheel respectively; a separation groove and a heat dissipation hole are formed in a grinding wheel, and an upper flange, a lower flange, a first air hole, a second air hole, a first drainage hole, a second drainage hole and other structures are designed on an upper clamping plate and a lower clamping plate, so that an efficient and directional cooling liquid conveying and heat dissipation system is constructed, and the heat dissipation system breaks through the limitation of a traditional external pouring cooling mode; the cooling liquid can be accurately guided to enter a grinding arc area, direct permeation and uniform distribution of the cooling liquid to a grinding contact area are achieved, the cooling efficiency is remarkably improved, and the problems of workpiece burning, thermal deformation, adhesion type blockage of a grinding wheel and the like are effectively reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of numerical control grinding machines, in particular to a high-precision numerical control machine tool cutter for guide plate groove machining. BACKGROUND

[0002] As a core stressed component of a chain saw, the machining precision of the guide groove of the chain saw guide plate directly determines the running stability, cutting efficiency and service life of the saw chain. At present, in the manufacturing of high-end guide plates, the precision grinding of the guide plate groove by using a numerical control grinding machine and a diamond grinding wheel has become a mainstream process; however, the process always faces the problems of machining precision degradation and grinding wheel service life shortening caused by the accumulation of a large amount of heat in the grinding process.

[0003] Grinding is essentially a high-energy-density cutting process, and most of the energy will be converted into heat and accumulated in the contact area of the grinding wheel and the workpiece; in the prior art, an external pouring cooling liquid is generally used to cool and lubricate the grinding area, and this method has inherent and difficult-to-overcome defects: Low cooling efficiency, prone to workpiece burning and deformation: due to the "air barrier" effect caused by the high-speed rotation of the grinding wheel and the limitation of the small space of the guide plate groove, the externally poured cooling liquid cannot effectively penetrate and enter the real grinding arc area, so that the heat cannot be taken away in time and a large amount of heat is accumulated in the surface layer of the workpiece, which not only easily causes the surface of the chain saw guide plate to be burned, residual tensile stress and even micro-cracks, and even seriously affects the flatness and straightness of the guide plate as a whole due to thermal deformation, which poses a fatal threat to high-precision machining. Moreover, under high temperature, the metal chips generated by grinding will be in a certain plastic state, and under the action of a large grinding pressure, the metal chips are easily adhered and welded in the pores and chip space on the surface of the grinding wheel, which is a phenomenon of "adhesion type clogging" of the grinding wheel; the clogged grinding chips not only sharply reduce the sharpness and grinding capacity of the grinding wheel, form an extrusion state of "grinding not moving" and generate more heat; more importantly, the metal layer covering the surface acts as a "thermal blanket", which seriously hinders the dissipation of heat in the interior of the grinding wheel body, causing the temperature of the grinding wheel body to rise sharply. Even the superhard grinding wheel combined by resin or ceramic binder will have its binder strength significantly reduced under the continuous high-temperature environment, causing the abrasive grains to fall off prematurely, the abnormal wear to be intensified, the shape precision of the grinding wheel to be rapidly lost, the size consistency of the guide plate groove width to be unable to be guaranteed, and the grinding wheel body to be deformed due to thermal expansion under uneven thermal load, further intensifying the grinding vibration and precision fluctuation, forming a vicious cycle.

[0004] Therefore, the external cooling method in the prior art cannot fundamentally solve the heat dissipation problem in the high-efficiency and precision grinding of the guide plate groove, and an innovative solution needs to be provided to break the vicious cycle of "high temperature-clogging-thermal damage-precision loss". SUMMARY

[0005] The purpose of this invention is to provide a high-precision CNC machine tool for machining guide plate grooves, so as to solve the problem that the external cooling method of the grinding wheel in the prior art cannot fundamentally solve the problem of heat dissipation in the efficient and precision grinding of guide plate grooves.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A high-precision CNC machine tool tool for machining guide plate grooves includes a grinding wheel coaxially fixedly connected to a spindle. The spindle comprises a connecting section, a limiting section, and a threaded section from top to bottom. An upper clamping plate and a lower clamping plate are coaxially arranged on the upper and lower sides of the grinding wheel, respectively. A limiting hole penetrating through both the upper and lower clamping plates is formed in the middle of each plate. Both the limiting hole and the limiting section are polygonal. The limiting section is slidably connected within the limiting hole. A fastening nut is threaded onto the threaded section, used to clamp the upper clamping plate, the grinding wheel, and the lower clamping plate. Multiple dividing grooves are formed on the outer edge of the grinding wheel. Multiple dividing grooves penetrate the upper and lower sides of the grinding wheel and are arranged in a circular array. The outer edges of the upper and lower clamping plates are respectively provided with upper flanges and lower flanges. When the fastening nut fastens the upper clamping plate, grinding wheel, and lower clamping plate, the lower end face of the upper flange is in contact with the upper end face of the grinding wheel, and the upper end face of the lower flange is in contact with the lower end face of the grinding wheel. The upper end face of the upper flange is located below the upper end face of the grinding wheel, and the lower end face of the lower flange is located above the lower end face of the grinding wheel. The minimum diameter of the vertical projection of the dividing groove is the same as the minimum diameter of the vertical projection of the upper flange or the lower flange.

[0007] By incorporating multiple partition grooves on the grinding wheel, its outer edge is divided into several independent areas. When the grinding wheel rotates at high speed, these grooves effectively guide the coolant directly into the grinding arc zone, overcoming the limitations of traditional external pouring methods due to the "air barrier" effect and space constraints. This allows for precise coolant penetration into the grinding contact area. Simultaneously, the matching design of the vertical projection diameter of the partition grooves and the flange ensures that the coolant is evenly distributed along the grooves under centrifugal force, preventing insufficient or excessive cooling in certain areas. This significantly improves cooling efficiency and reduces the risk of workpiece burns and thermal deformation. Furthermore, this structure promotes the timely removal of metal chips generated during grinding with the coolant, reducing the probability of "adhesive clogging" of the grinding wheel, extending its service life, and ensuring dimensional consistency and surface quality in the guide groove machining.

[0008] Preferably, the grinding wheel has heat dissipation holes that penetrate the upper and lower sides, and a heat dissipation hole is provided in the middle of every two adjacent partition grooves. The upper flange and the lower flange have multiple No. 1 air holes and No. 2 air holes that penetrate the upper and lower sides, respectively. The number of heat dissipation holes, No. 1 air holes and No. 2 air holes are the same and correspond one-to-one. Each set of corresponding heat dissipation holes, No. 1 air holes and No. 2 air holes are coaxially arranged.

[0009] By creating heat dissipation holes on the grinding wheel and designating No. 1 and No. 2 air vents on the upper and lower flanges respectively, a heat dissipation channel is constructed from the inside to the outside of the grinding wheel. When the grinding wheel rotates at high speed, external air can enter through No. 2 air vent, flow through the heat dissipation hole to No. 1 air vent, and then be discharged, forming a continuous airflow circulation. This design not only accelerates the dissipation of heat from the grinding wheel body, effectively reducing the working temperature of the grinding wheel, but also drives the flow of coolant inside the grinding wheel through airflow, further enhancing the cooling effect. At the same time, the coaxial alignment of the heat dissipation holes and air vents ensures the smoothness of the airflow path, avoiding the decrease in heat dissipation efficiency caused by airflow turbulence, thereby significantly improving the stability and durability of the grinding wheel in high-temperature grinding environments.

[0010] Preferably, multiple limiting protrusions are provided on the lower end face of the upper flange and the upper end face of the lower flange. The number of the multiple limiting protrusions on the upper flange and the lower flange is the same as the number of multiple partition grooves. The limiting protrusions on the upper flange and the lower flange are respectively embedded in the partition grooves. The lower end face of the limiting protrusion on the upper flange, the upper end face of the limiting protrusion on the lower flange, and the inner sidewall of the partition groove form a fluid channel. Multiple No. 1 drainage holes are provided on the upper end face of the upper clamping plate. The lower end of the No. 1 drainage hole is connected to the fluid channel, and each fluid channel is provided with a No. 1 drainage hole.

[0011] By setting limiting protrusions on the upper and lower flanges respectively, and forming a fluid channel between the upper and lower flanges, combined with the No. 1 drainage hole on the upper clamping plate, a highly efficient and directional coolant delivery system is constructed. When the grinding wheel rotates, the coolant can be precisely injected into the fluid channel through the No. 1 drainage hole, and then evenly distributed along the channel to each partition groove, ensuring continuous and stable cooling of the grinding area. This design not only overcomes the defect of uneven coolant distribution in traditional external casting methods, but also allows the coolant to act directly on the grinding contact surface through the guiding effect of the fluid channel, greatly improving cooling efficiency. At the same time, the embedded cooperation of the limiting protrusions and the partition grooves enhances the overall rigidity of the grinding wheel structure, reduces vibration under high-speed rotation, and further ensures machining accuracy and surface quality.

[0012] Preferably, a liquid storage tank is coaxially formed on the upper end surface of the upper clamping plate, the upper end of the first drainage hole is connected to the bottom of the liquid storage tank, and the upper inner wall of the first drainage hole is tangent to the side wall of the liquid storage tank with the maximum diameter. The coolant nozzle on the grinding machine is located on the upper side of the liquid storage tank.

[0013] By incorporating a coolant reservoir on the upper clamping plate and connecting the upper end of the first drainage hole to the bottom of the reservoir with its inner wall tangential, centralized storage and precise distribution of coolant are achieved. When coolant is injected into the reservoir from the coolant nozzle, the liquid flows tangentially into the first drainage hole, creating a stable swirling effect. This structure not only ensures that the coolant can be uniformly and continuously delivered to each partitioned slot through the fluid channel, avoiding the uneven cooling problem caused by flow fluctuations in traditional casting methods, but also reduces the risk of coolant supply interruption through the buffering effect of the reservoir, further improving the stability of the grinding process. Simultaneously, the centralized supply design of the reservoir simplifies the layout of the cooling system, reduces interference from external piping on the grinding wheel rotation, and provides reliable cooling assurance for high-precision guide plate groove machining.

[0014] Preferably, the side wall of the liquid storage tank with the largest diameter is provided with a plurality of second drainage holes. The upper end of the second drainage hole is connected to the liquid storage tank and the lower end penetrates the outer side wall of the upper clamping plate. The lower end of the second drainage hole is located on the upper end surface of the upper flange. The number of second drainage holes is the same as that of first drainage holes, and each second drainage hole is respectively set on the upper side of the corresponding first drainage hole.

[0015] A dual-channel coolant circulation system was constructed by creating a second drainage hole on the side wall of the storage tank, corresponding vertically to the first drainage hole. When coolant is injected into the storage tank, part of the liquid enters the fluid channel through the first drainage hole, while the other part is sprayed directly onto the upper flange surface through the second drainage hole, providing supplementary cooling to the upper part of the grinding wheel. This design not only expands the coolant coverage area, ensuring the overall temperature uniformity of the grinding wheel, but also enhances the cooling effect on the upper edge area of ​​the grinding wheel through the spraying action of the second drainage hole. Simultaneously, the coolant flows to the lower flange through the first drainage hole, heat dissipation holes, and the second drainage hole, further enhancing the cooling effect on the lower edge area of ​​the grinding wheel. This effectively prevents grinding wheel deformation or accelerated wear caused by localized overheating, improving the adaptability and efficiency of the cooling system.

[0016] Preferably, an absorbent cotton is coaxially arranged inside the liquid storage tank. The liquid storage tank includes an installation section and a conical section. The conical section is located on the inner side of the liquid storage tank, with the larger end of the conical section located on the lower side. The rotational cross section of the liquid storage tank is a right trapezoid. The absorbent cotton is coaxially installed inside the installation section.

[0017] By incorporating absorbent cotton within the coolant reservoir, and combining this with the reservoir's conical section and right-angled trapezoidal cross-section design, a highly efficient coolant storage and distribution device is created. The absorbent cotton, as the core component, not only rapidly absorbs and stores the liquid injected from the coolant nozzles but also distributes the coolant evenly throughout the reservoir via capillary action, preventing localized accumulation or flow interruptions. Simultaneously, the downward-facing design of the conical section allows the coolant to naturally converge towards the bottom of the reservoir under gravity, further enhancing the absorbent cotton's absorption efficiency. This structure not only ensures a continuous and stable coolant supply but also reduces impurities and metal shavings in the coolant through the filtration effect of the absorbent cotton, preventing them from entering the fluid channels and causing blockages, thus guaranteeing the long-term reliable operation of the cooling system.

[0018] Preferably, a pressure plate is coaxially mounted on the upper clamping plate, and the pressure plate is fixedly connected to the upper clamping plate by bolts. The inner side of the vertical projection of the pressure plate is located inside the liquid storage tank.

[0019] By installing a pressure plate on the upper clamping plate and fixing it to the upper clamping plate with bolts, ensuring that the inner side of the vertical projection of the pressure plate is located within the liquid storage tank, this design effectively guarantees the stable storage of coolant in the liquid storage tank. The pressure plate not only serves as a sealing component of the liquid storage tank, preventing coolant from splashing out due to centrifugal force during the high-speed rotation of the grinding wheel, but also, through its inner projection design, ensures that the coolant fully covers the bottom of the liquid storage tank, providing a continuous and stable coolant supply to the first drainage hole. Furthermore, the pressure plate's installation method is simple and reliable, facilitating disassembly and cleaning, which helps maintain the cleanliness and performance stability of the cooling system.

[0020] Preferably, the absorbent cotton is provided with a filter layer on both its outer side wall and lower end face, the filter layer has an L-shaped cross section, and the filter layer is attached to the side wall and bottom wall of the liquid storage tank.

[0021] By incorporating a filter layer with an "L"-shaped rotary cross-section structure on the sidewalls of the absorbent cotton, a double filtration barrier is formed, tightly fitting the sidewalls and bottom wall of the liquid storage tank. This not only prevents metal shavings and impurities in the coolant from entering the first and second drainage holes, but also provides preliminary purification of the coolant through the fine pores of the filter layer, reducing contamination of the cooling system by particles generated during grinding. Simultaneously, the "L"-shaped design ensures the stability of the filter layer within the liquid storage tank, maintaining its filtration effect even under high-intensity vibration environments, preventing coolant leakage or impurity penetration due to filter loosening. Furthermore, the synergistic effect of the filter layer and the absorbent cotton further extends the service life of the absorbent cotton, reduces the frequency of cooling system maintenance, and provides continuous and reliable cooling assurance for high-precision guide plate groove machining.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention constructs a highly efficient and directional coolant delivery and heat dissipation system by setting partition grooves and heat dissipation holes on the grinding wheel, and designing upper flanges, lower flanges, No. 1 air hole, No. 2 air hole, No. 1 drainage hole, and No. 2 drainage hole on the upper and lower clamping plates. This heat dissipation system breaks through the limitations of traditional external pouring cooling methods, can accurately guide coolant into the grinding arc area, realize the direct penetration and uniform distribution of coolant into the grinding contact area, significantly improve cooling efficiency, and effectively reduce problems such as workpiece burning, thermal deformation, and grinding wheel "adhesive clogging".

[0023] 2. This invention achieves centralized storage, uniform distribution, and impurity filtration of coolant through the combined design of a liquid storage tank, absorbent cotton, and filter layer. The conical structure of the liquid storage tank and the capillary action of the absorbent cotton work together to ensure a continuous and stable supply of coolant. At the same time, the filter layer effectively intercepts metal chips, prevents blockage of the fluid channel, and ensures the long-term reliable operation of the cooling system, providing comprehensive temperature control for high-precision guide plate groove processing.

[0024] 3. This invention enhances the overall rigidity of the grinding wheel structure and reduces vibration under high-speed rotation through the design of the limiting protrusion and the fluid channel. At the same time, it constructs an efficient and directional coolant delivery path, enabling the coolant to act directly on the grinding contact surface, greatly improving cooling efficiency, ensuring machining accuracy and surface quality, and solving the problems of precision loss and insufficient durability that traditional grinding wheels are prone to in high-temperature grinding environments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the CNC machine tool for machining high-precision guide plate grooves according to the present invention. Figure 2 This is a top view of the CNC machine tool cutting tool used for high-precision guide plate groove machining according to the present invention; Figure 3 for Figure 2 Full sectional view at point AA; Figure 4 for Figure 3 A magnified view of a section at point B in the middle; Figure 5 This is an exploded view of the CNC machine tool cutting tool used for high-precision guide plate groove machining according to the present invention.

[0026] In the diagram: 1. Grinding wheel; 101. Dividing groove; 102. Heat dissipation hole; 2. Upper clamping plate; 201. Limiting hole; 202. Upper flange; 203. Limiting protrusion; 204. Fluid channel; 205. No. 1 air hole; 206. No. 1 drainage hole; 207. Liquid storage tank; 2071. Installation section; 2072. Conical section; 208. No. 2 drainage hole; 3. Lower clamping plate; 301. Lower flange; 302. No. 2 air hole; 4. Main shaft; 401. Connecting section; 402. Limiting section; 403. Threaded section; 5. Fastening nut; 6. Absorbent cotton; 7. Pressure plate; 8. Filter screen layer. Detailed Implementation

[0027] Please see Figures 1 to 5 This invention provides a high-precision CNC machine tool for machining guide plate grooves, the technical solution of which is as follows: A high-precision CNC machine tool cutting tool for machining guide plate grooves; please refer to [link / reference]. Figure 1 and Figure 5The system includes a grinding wheel 1 coaxially fixedly connected to a spindle 4. The spindle 4, from top to bottom, consists of a connecting section 401, a limiting section 402, and a threaded section 403. An upper clamping plate 2 and a lower clamping plate 3 are coaxially arranged on the upper and lower sides of the grinding wheel 1, respectively. Each of the upper clamping plate 2 and the lower clamping plate 3 has a limiting hole 201 penetrating through both sides in its center. Both the limiting hole 201 and the limiting section 402 are polygonal. The limiting section 402 is slidably connected within the limiting hole 201. A fastening nut 5 is threaded onto the threaded section 403. The fastening nut 5 is used to clamp the upper clamping plate 2, the grinding wheel 1, and the lower clamping plate 3. Multiple dividing grooves 101 are formed on the outer edge of the grinding wheel 1. The dividing groove 101 penetrates the upper and lower sides of the grinding wheel 1, and multiple dividing grooves 101 are arranged in a circular array. The outer edges of the upper clamping plate 2 and the lower clamping plate 3 are respectively provided with an upper flange 202 and a lower flange 301. When the fastening nut 5 fastens the upper clamping plate 2, the grinding wheel 1, and the lower clamping plate 3, the lower end face of the upper flange 202 is in contact with the upper end face of the grinding wheel 1, and the upper end face of the lower flange 301 is in contact with the lower end face of the grinding wheel 1. The upper end face of the upper flange 202 is located below the upper end face of the grinding wheel 1, and the lower end face of the lower flange 301 is located above the lower end face of the grinding wheel 1. The minimum diameter of the vertical projection of the dividing groove 101 is the same as that of the upper flange 202 or the lower flange 301. The minimum diameter of the vertical projection is the same. The grinding wheel 1 has heat dissipation holes 102 that penetrate the upper and lower sides. There is a heat dissipation hole 102 in the middle of every two adjacent partition grooves 101. The upper flange 202 and the lower flange 301 have multiple first air holes 205 and second air holes 302 that penetrate the upper and lower sides, respectively. The number of heat dissipation holes 102, first air holes 205 and second air holes 302 are the same and correspond one-to-one. Each set of corresponding heat dissipation holes 102, first air holes 205 and second air holes 302 are coaxially arranged. Multiple limiting protrusions 203 are provided on the lower end surface of the upper flange 202 and the upper end surface of the lower flange 301. The number of the multiple limiting protrusions 203 on the upper flange 202 and the lower flange 301 is the same as the number of multiple partition grooves 101, and the limiting protrusions 203 on the upper flange 202 and the lower flange 301 are respectively embedded in the partition grooves 101. The lower end face of the limiting protrusion 203 on the upper flange 202, the upper end face of the limiting protrusion 203 on the lower flange 301 and the inner sidewall of the partition groove 101 form a fluid channel 204. The upper end face of the upper clamping plate 2 is provided with multiple first drainage holes 206. The lower end of the first drainage hole 206 is connected to the fluid channel 204, and each fluid channel 204 is provided with a corresponding first drainage hole 206.

[0028] Please see Figures 2 to 4A liquid storage tank 207 is coaxially formed on the upper end surface of the upper clamping plate 2. The upper end of the first drainage hole 206 is connected to the bottom of the liquid storage tank 207, and the inner side wall of the upper end of the first drainage hole 206 is tangent to the side wall of the liquid storage tank 207 with the largest diameter. The coolant nozzle of the grinding machine is located on the upper side of the liquid storage tank 207. A plurality of second drainage holes 208 are formed on the side wall of the liquid storage tank 207 with the largest diameter. The upper end of the second drainage hole 208 is connected to the liquid storage tank 207, and the lower end penetrates the outer side wall of the upper clamping plate 2. The lower end of the second drainage hole 208 is located on the upper end surface of the upper flange 202. The number of second drainage holes 208 is the same as that of the first drainage hole 206. Each second drainage hole 208 is respectively set on the upper side of the corresponding first drainage hole 206.

[0029] Please see Figure 4 The liquid storage tank 207 is coaxially provided with absorbent cotton 6. The liquid storage tank 207 includes an installation section 2071 and a conical section 2072. The conical section 2072 is located on the inner side of the liquid storage tank 207, with the larger end of the conical section 2072 located on the lower side. The rotational cross section of the liquid storage tank 207 is a right trapezoid. The absorbent cotton 6 is coaxially installed in the installation section 2071. The outer wall and lower end face of the absorbent cotton 6 are provided with a filter screen layer 8. The rotational cross section of the filter screen layer 8 is "L" shaped. The filter screen layer 8 is attached to the side wall and bottom wall of the liquid storage tank 207. A pressure plate 7 is coaxially installed on the upper clamping plate 2. The pressure plate 7 is fixedly connected to the upper clamping plate 2 by bolts. The inner side of the vertical projection of the pressure plate 7 is located inside the liquid storage tank 207.

[0030] Working principle: Please refer to Figures 1 to 5After the CNC machine tool starts, the spindle 4 drives the grinding wheel 1 to rotate at high speed. At the same time, the coolant nozzle begins to inject coolant into the reservoir 207. During this process, the absorbent cotton 6, with its excellent capillary action, quickly and efficiently absorbs the coolant, and with its uniform distribution characteristics, smoothly delivers the absorbed coolant to all corners of the reservoir 207. It is worth emphasizing that the upper inner wall of the first drainage hole 206 is exactly tangent to the side wall of the reservoir 207 with the largest diameter. This ingenious design allows the coolant to form a stable and continuous swirling effect along the tangential direction. Under this effect, a portion of the coolant is precisely injected through the first drainage hole 206 into the complex fluid channel 204, which is formed by the lower end face of the limiting protrusion 203 of the upper flange 202, the upper end face of the limiting protrusion 203 of the lower flange 301, and the inner wall of the partition groove 101. Another portion of the coolant is sprayed directly onto the surface of the upper flange 202 of the grinding wheel 1 through the second drainage hole 208, effectively supplementing the cooling of the upper area of ​​the grinding wheel 1 and further improving the overall cooling effect. Inside the fluid channel 204, the coolant is evenly and meticulously distributed to each grinding area along the annular array of partition grooves 101, acting directly and efficiently on the contact surface between the grinding wheel 1 and the workpiece, ensuring the stability and precision of the grinding process. Simultaneously, the specially opened heat dissipation holes 102 on the grinding wheel 1, together with the first air hole 205 and the second air hole 302 in the upper flange 202 and lower flange 301, form a complete and efficient heat dissipation channel. When the grinding wheel 1 rotates at high speed, external air is drawn in through the second air vent 302, then through the heat dissipation vent 102, and finally discharged from the first air vent 205, forming a continuous and stable airflow circulation. This unique air-liquid dual circulation system not only directly removes the heat generated during grinding through the coolant, but also accelerates the heat dissipation process of the grinding wheel 1 body with the help of airflow, effectively avoiding problems such as deformation or accelerated wear of the grinding wheel 1 caused by local overheating. In addition, the filter layer 8, as a key filtration component in the system, has a unique "L"-shaped rotary cross-section structure design, which allows it to fit tightly against the side and bottom walls of the liquid storage tank 207. Before the coolant enters the fluid channel 204, the filter layer 8 can effectively intercept metal chips and various impurities, ensuring the cleanliness of the coolant. The pressure plate 7 is firmly fixed to the upper clamping plate 2 with bolts, and its vertical projection inner part just covers the bottom of the liquid storage tank 207, which not only prevents the coolant from splashing out under the action of centrifugal force, but also ensures that the coolant can continuously and stably cover the inlet of the first drainage hole 206. Through meticulous structural optimization design, the entire cooling system achieves efficient distribution of coolant, rapid heat dissipation, and precise filtration of impurities, providing a stable and reliable process guarantee for the machining of high-precision guide plate grooves, and significantly improving processing efficiency and product quality.

[0031] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A high-precision CNC machine tool tool for machining guide plate grooves, comprising a grinding wheel (1) coaxially fixedly connected to the spindle (4), characterized in that, The main shaft (4) consists of a connecting section (401), a limiting section (402), and a threaded section (403) from top to bottom. The grinding wheel (1) is coaxially provided with an upper clamping plate (2) and a lower clamping plate (3) on its upper and lower sides, respectively. The upper clamping plate (2) and the lower clamping plate (3) are both provided with limiting holes (201) that penetrate the upper and lower sides. The limiting holes (201) and the limiting sections (402) are both polygonal. The limiting sections (402) are slidably connected in the limiting holes (201). The threaded section (403) is threaded with a fastening nut (5) for clamping the upper clamping plate (2), the grinding wheel (1), and the lower clamping plate (3). The outer edge of the grinding wheel (1) is provided with multiple partition grooves (101). The multiple partition grooves (101) are arranged in a ring array. The upper clamping plate (2) and the lower clamping plate (3) are respectively provided with an upper flange (202) and a lower flange (301) on their outer edges. When the fastening nut (5) fastens the upper clamping plate (2), the grinding wheel (1) and the lower clamping plate (3), the lower end face of the upper flange (202) is in contact with the upper end face of the grinding wheel (1), the upper end face of the lower flange (301) is in contact with the lower end face of the grinding wheel (1), and the upper end face of the upper flange (202) is located below the upper end face of the grinding wheel (1), and the lower end face of the lower flange (301) is located above the lower end face of the grinding wheel (1). The minimum diameter of the vertical projection of the dividing groove (101) is the same as the minimum diameter of the vertical projection of the upper flange (202) or the lower flange (301).

2. The high-precision CNC machine tool cutting tool for machining guide plate grooves according to claim 1, characterized in that, The grinding wheel (1) is provided with heat dissipation holes (102) that penetrate the upper and lower sides. A heat dissipation hole (102) is provided in the middle of every two adjacent partition grooves (101). Multiple No. 1 air hole (205) and No. 2 air hole (302) that penetrate the upper and lower sides are provided on the upper flange (202) and lower flange (301), respectively. The number of heat dissipation holes (102), No. 1 air hole (205) and No. 2 air hole (302) are the same and correspond one-to-one. Each set of corresponding heat dissipation holes (102), No. 1 air hole (205) and No. 2 air hole (302) are coaxially arranged.

3. The high-precision CNC machine tool cutting tool for machining guide plate grooves according to claim 1, characterized in that, Multiple limiting protrusions (203) are provided on the lower end face of the upper flange (202) and the upper end face of the lower flange (301). The number of the multiple limiting protrusions (203) on the upper flange (202) and the lower flange (301) is the same as the number of the multiple partition grooves (101). The limiting protrusions (203) on the upper flange (202) and the lower flange (301) are respectively embedded in the partition grooves (101). The lower end face of the limiting protrusion (203) on the upper flange (301), the upper end face of the limiting protrusion (203) on the lower flange (301), and the inner side wall of the partition groove (101) form a fluid channel (204). The upper end face of the upper clamping plate (2) is provided with a plurality of first drainage holes (206). The lower end of the first drainage hole (206) is connected to the fluid channel (204), and each fluid channel (204) is provided with a first drainage hole (206).

4. The high-precision CNC machine tool cutting tool for machining guide plate grooves according to claim 3, characterized in that, A liquid storage tank (207) is coaxially provided on the upper end surface of the upper clamping plate (2). The upper end of the first drainage hole (206) is connected to the bottom of the liquid storage tank (207), and the inner side wall of the upper end of the first drainage hole (206) is tangent to the side wall of the maximum diameter of the liquid storage tank (207). The coolant nozzle on the grinding machine is located on the upper side of the liquid storage tank (207).

5. A high-precision CNC machine tool cutting tool for machining guide plate grooves according to claim 4, characterized in that, The storage tank (207) has multiple second-level drainage holes (208) on its maximum diameter sidewall. The upper end of the second-level drainage hole (208) is connected to the storage tank (207), and the lower end penetrates the outer sidewall of the upper clamping plate (2). The lower end of the second-level drainage hole (208) is located on the upper surface of the upper flange (202). The number of second-level drainage holes (208) is the same as that of first-level drainage holes (206). Each second-level drainage hole (208) is set on the upper side of the corresponding first-level drainage hole (206).

6. A high-precision CNC machine tool cutting tool for machining guide plate grooves according to claim 5, characterized in that, The liquid storage tank (207) is coaxially provided with absorbent cotton (6). The liquid storage tank (207) includes an installation section (2071) and a conical section (2072). The conical section (2072) is located on the inner side of the liquid storage tank (207). The large end of the conical section (2072) is located on the lower side. The rotation section of the liquid storage tank (207) is a right trapezoid. The absorbent cotton (6) is coaxially installed in the installation section (2071).

7. A high-precision CNC machine tool cutting tool for machining guide plate grooves according to claim 6, characterized in that, A pressure plate (7) is coaxially mounted on the upper clamping plate (2). The pressure plate (7) is fixedly connected to the upper clamping plate (2) by bolts. The inner side of the vertical projection of the pressure plate (7) is located inside the liquid storage tank (207).

8. A high-precision CNC machine tool tool for machining guide plate grooves according to claim 6, characterized in that, The absorbent cotton (6) has a filter layer (8) on its outer side wall and lower end face. The filter layer (8) has an L-shaped cross section and is attached to the side wall and bottom wall of the liquid storage tank (207).

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