A self-cooling high-efficiency cutting mechanism based on part machining

Abstract

This application relates to a self-cooling high-efficiency cutting mechanism for parts machining, belonging to the technical field of cutting equipment. It includes a tool body and a cutting insert. The tool body has a heat-conducting cavity inside, with a fixing groove at the top of the inner wall of the cavity. A high thermal conductivity core passes through the heat-conducting cavity, and a fixing block is fixedly connected to the top of the high thermal conductivity core, passing through the fixing groove. Heat dissipation fins are fixedly connected to the surface of the tool body. By incorporating the high thermal conductivity core and heat dissipation fins, the heat generated by the cutting insert during operation can be quickly conducted to the tool body through the heat-conducting cavity. The heat is then dissipated to the outside through the heat dissipation fins on the tool body surface, effectively reducing the temperature of the cutting area and preventing accelerated wear of the cutting insert and decreased cutting accuracy due to high temperatures, thus ensuring the stability and reliability of long-term cutting operations.

Description

Technical Field

[0001] This application relates to the field of cutting equipment technology, and in particular to a self-cooling high-efficiency cutting mechanism based on part machining. Background Technology

[0002] In the field of parts machining, cutting is an extremely common and crucial process, widely used in many industries such as machinery manufacturing, aerospace, and automotive. However, during the cutting process, a large amount of heat is generated between the cutting tool and the workpiece due to high-speed friction. If this heat cannot be dissipated effectively in time, the temperature of the cutting tool itself will rise sharply, causing a decline in the mechanical properties of the tool material, such as reduced hardness and decreased wear resistance. This, in turn, accelerates the wear rate of the tool, significantly shortens its service life, and increases machining costs. At the same time, high temperatures can cause thermal deformation in the machined area of ​​the workpiece, seriously affecting the machining accuracy and surface quality of the parts, making it difficult to meet the machining requirements of high-precision parts.

[0003] However, existing technologies typically employ external cooling methods, such as spraying coolant or blowing cooling gas onto the cutting area. However, this external cooling method requires additional complex equipment for coolant storage, transportation, and recycling filtration, which not only increases equipment purchase costs but also complicates the layout of the machining site. Furthermore, the use of coolant causes environmental pollution, and subsequent wastewater treatment requires significant manpower, material resources, and financial investment. Moreover, the transportation of external cooling media has a certain delay, making it difficult to respond quickly and accurately to the high temperatures in the cutting area in real time, resulting in less than ideal cooling effects. To address these issues, a self-cooling high-efficiency cutting mechanism based on part machining is proposed. Utility Model Content

[0004] The purpose of this application is to provide a self-cooling high-efficiency cutting mechanism for part machining, which has the advantages of effectively reducing the temperature of the cutting area, avoiding accelerated wear of the cutting tool and decreased cutting accuracy due to high temperature, and facilitating positioning and installation.

[0005] This application provides a self-cooling high-efficiency cutting mechanism for parts machining, employing the following technical solution: A self-cooling high-efficiency cutting mechanism for parts machining includes a tool body and a cutting insert. The tool body has a heat-conducting cavity inside, and a fixing groove is formed at the top of the inner wall of the heat-conducting cavity. A high-thermal-conductivity core is inserted inside the heat-conducting cavity, and a fixing block is fixedly connected to the top of the high-thermal-conductivity core, passing through the fixing groove. Heat dissipation fins are fixedly connected to the surface of the tool body. A heat-conducting boss is fixedly connected to the bottom end of the high-thermal-conductivity core, and a positioning post is fixedly connected to the bottom end of the high-thermal-conductivity core. A connecting shaft is inserted inside the tool body, and a heat-conducting groove is formed on the upper surface of the connecting shaft. The heat-conducting boss passes through the heat-conducting groove. A mounting groove is formed on the surface of the cutting insert, and the connecting shaft passes through the mounting groove. A blocking disc is fixedly connected to the bottom end of the connecting shaft, overlapping the mounting groove. A limit block is fixedly connected to the surface of the connecting shaft, and a threaded hole is formed on the surface of the connecting shaft.

[0006] By adopting the above technical solution, the heat generated by the cutting blade during operation can be quickly conducted to the blade body through the heat-conducting cavity inside the blade body and the high thermal conductivity core. The heat is then dissipated to the outside through the heat dissipation fins on the surface of the blade body, effectively reducing the temperature of the cutting area and preventing the cutting blade from wearing out faster and the cutting accuracy from decreasing due to high temperature. This ensures the stability and reliability of long-term cutting operations. With the cooperation of the fixing groove and fixing block, the high thermal conductivity core can be precisely positioned and installed. At the same time, the connecting shaft is connected to the cutting blade and blade body through the mounting groove, blocking plate, and limiting block. This not only ensures the accuracy of the assembly between the components and avoids the impact of component misalignment on cutting accuracy, but also ensures that the connection between the components is stable during the cutting process, preventing the components from loosening due to cutting vibration, and improving the overall performance of the mechanism.

[0007] Preferably, the top of the blade body is provided with a connecting keyway, and the top of the blade body is also fitted with a heat insulation sleeve, which is made of ceramic fiber material.

[0008] By adopting the above technical solution, the ceramic fiber heat insulation sleeve fitted on the top of the cutter body can prevent the heat on the cutter body from being transferred to the upper part and the surrounding area of ​​the mechanism. On the one hand, it can prevent high temperature from causing thermal damage to the machine tool components connected to the upper part of the cutter body and extend the service life of the machine tool components. On the other hand, it can also prevent operators from being burned by high temperature when approaching the mechanism, thus improving the safety of the mechanism.

[0009] Preferably, the heat dissipation fins are made of aluminum alloy, and there are multiple sets of heat dissipation fins, which are evenly arranged on the surface of the blade body, with a spacing of 3-5mm between two adjacent heat dissipation fins.

[0010] By adopting the above technical solution and using aluminum alloy heat dissipation fins, aluminum alloy has good thermal conductivity and heat dissipation performance. The design of multiple sets of evenly arranged fins with a spacing of 3-5mm can maximize the contact area between the heat dissipation fins and the air. At the same time, the reasonable spacing avoids obstruction of airflow between the fins, accelerates the air convection speed, further improves the heat dissipation efficiency of the blade body, and enhances the self-cooling effect of the mechanism.

[0011] Preferably, a gap of 0.5-1mm is left between the outer wall of the high thermal conductivity core and the inner wall of the thermally conductive cavity, and the gap is filled with thermally conductive silicone grease.

[0012] By adopting the above technical solution, thermal grease is filled in the 0.5-1mm gap between the outer wall of the thermally conductive core and the inner wall of the thermally conductive cavity. The thermal grease can fill the tiny gap between the two, eliminate air, and enable the high thermal conductivity core and the inner wall of the thermally conductive cavity to achieve a tighter thermal contact, reduce heat loss during the transfer process, and significantly improve the heat conduction efficiency from the high thermal conductivity core to the blade body.

[0013] Preferably, the inner wall of the fixing groove is provided with internal threads, the surface of the fixing block is provided with external threads, and the fixing groove and the fixing block are fixedly connected by a threaded ring.

[0014] By adopting the above technical solution, the fixing groove and the fixing block are connected by threads. Compared with simple snap-fit ​​and other methods, the threaded connection can provide a more stable fixing effect and prevent the high thermal conductivity core from shifting due to vibration and other factors during operation. At the same time, the threaded connection structure is simple. When the high thermal conductivity core needs to be replaced or maintained, it can be disassembled and installed simply by rotating it. The operation is convenient and reduces the difficulty and cost of maintenance.

[0015] Preferably, there are two sets of threaded holes, and the other set of threaded holes is opened on the surface of the cutter body. A fixing bolt passes through the inside of the threaded hole, and the connecting shaft and the cutter body are fixedly connected by the fixing bolt.

[0016] By adopting the above technical solution, the connecting shaft and the tool body are tightly fixed by two sets of threaded holes and fixing bolts, which further enhances the connection strength between the connecting shaft and the tool body. This avoids relative loosening between the connecting shaft and the tool body during high-intensity cutting operations, ensuring the structural stability of the entire cutting mechanism and providing a reliable guarantee for stable cutting.

[0017] Preferably, a limiting groove is formed on the upper surface of the connecting shaft, and there are two sets of positioning posts and positioning grooves arranged symmetrically, with the positioning posts and positioning grooves being matched.

[0018] By adopting the above technical solution, the two sets of symmetrically arranged positioning posts and limiting grooves cooperate to play a dual positioning role in the assembly process of the high thermal conductivity core and the connecting shaft. This can effectively prevent circumferential or radial misalignment during assembly, allowing the heat-conducting boss of the high thermal conductivity core to be accurately embedded in the heat-conducting groove of the connecting shaft, ensuring a smooth heat transfer path, and also improving the overall assembly accuracy of each component.

[0019] Preferably, there are two sets of limiting blocks, which are symmetrically arranged on the surface of the connecting shaft, and a limiting groove is formed inside the mounting groove, and the limiting block and the limiting groove are matched. By adopting the above technical solution, the two sets of symmetrically arranged limiting blocks cooperate with the limiting groove in the mounting groove to effectively limit the relative rotation between the connecting shaft and the cutting blade, avoid the cutting edge position shift caused by the relative rotation of the two during the cutting process, ensure the dimensional accuracy and shape accuracy of the cutting process, and improve the quality of the processed products.

[0020] In summary, this application includes at least one of the following beneficial technical effects: This self-cooling high-efficiency cutting mechanism for parts machining utilizes a high thermal conductivity core and heat dissipation fins. The heat-conducting cavity inside the tool body, in conjunction with the high thermal conductivity core, rapidly transfers the heat generated by the cutting tool during operation to the tool body. The heat is then dissipated to the outside through the heat dissipation fins on the tool body surface, effectively reducing the temperature in the cutting area. This prevents accelerated wear of the cutting tool and decreased cutting accuracy due to high temperatures, ensuring the stability and reliability of long-term machining operations. The use of a fixing groove and fixing block enables precise positioning and installation of the high thermal conductivity core. Simultaneously, the connecting shaft connects to the cutting tool and tool body via a mounting groove, blocking plate, and limiting block. This not only ensures accurate assembly between components, preventing misalignment from affecting cutting accuracy, but also ensures stable connection of components during cutting, preventing loosening due to cutting vibration, thus improving the overall performance of the mechanism. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present application. Figure 2 This is a structural schematic diagram of the cross-section of the blade body in this application; Figure 3 This is a schematic diagram of the cross-section of the high thermal conductivity core in this application; Figure 4 This is a structural schematic diagram of the cross-section of the connecting shaft in this application; Figure 5 This is a schematic diagram of the cutting blade in this application.

[0022] In the picture: 1. Cutting blade; 2. Heat-conducting cavity; 3. Fixing groove; 4. High thermal conductivity core; 5. Fixing block; 6. Heat dissipation fins; 7. Heat-conducting boss; 8. Positioning post; 9. Connecting shaft; 10. Heat-conducting groove; 11. Positioning groove; 12. Blocking plate; 13. Threaded hole; 14. Limiting block; 15. Cutting blade; 16. Mounting groove; 17. Limiting groove; 18. Fixing bolt; 19. Connecting keyway; 20. Heat insulation sleeve. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0024] Example 1: A self-cooling high-efficiency cutting mechanism based on part machining, referring to... Figure 1 , Figure 2 and Figure 4 The tool includes a tool body 1 and a cutting insert 15. The tool body 1 has an internal heat-conducting cavity 2, with a fixing groove 3 at the top of its inner wall. A high thermal conductivity core 4 passes through the heat-conducting cavity 2. By using the high thermal conductivity core 4 and heat dissipation fins 6, the heat generated by the cutting insert 15 during operation can be quickly conducted to the tool body 1 through the heat-conducting cavity 2 and the high thermal conductivity core 4. The heat is then dissipated to the outside through the heat dissipation fins 6 on the surface of the tool body 1, effectively reducing the temperature of the cutting area and preventing accelerated wear of the cutting insert 15 and decreased cutting accuracy due to high temperatures. This ensures the stability and reliability of long-term cutting operations. A fixing block 5 is fixedly connected to the top of the high thermal conductivity core 4, passing through the fixing groove 3. Heat dissipation fins 6 are fixedly connected to the surface of the tool body 1. A heat-conducting boss 7 and a positioning post 8 are fixedly connected to the bottom of the high thermal conductivity core 4. A connecting shaft 9 is inserted inside the core. A heat-conducting groove 10 is formed on the upper surface of the connecting shaft 9. A heat-conducting boss 7 is inserted inside the heat-conducting groove 10. An installation groove 16 is formed on the surface of the cutting blade 15. The connecting shaft 9 is inserted inside the installation groove 16. A blocking plate 12 is fixedly connected to the bottom end of the connecting shaft 9. The blocking plate 12 overlaps inside the installation groove 16. A limiting block 14 is fixedly connected to the surface of the connecting shaft 9. A threaded hole 13 is formed on the surface of the connecting shaft 9. By setting the fixing groove 3 and the fixing block 5, the high heat conductivity core 4 can be accurately positioned and installed. At the same time, the connecting shaft 9 is connected to the cutting blade 15 and the blade body 1 through the installation groove 16, the blocking plate 12, and the limiting block 14. This not only ensures the accuracy of the assembly between the components and avoids the impact of component misalignment on the cutting accuracy, but also ensures that the connection between the components is stable during the cutting process, preventing the components from loosening due to cutting vibration, and improving the overall use effect of the mechanism.

[0025] Please see Figure 1 , Figure 2 and Figure 3The top of the cutter body 1 has a connecting keyway 19, and a heat insulation sleeve 20 is also fitted on the top of the cutter body 1. The heat insulation sleeve 20 is made of ceramic fiber material. The ceramic fiber heat insulation sleeve 20 on the top of the cutter body 1 can prevent heat from the cutter body 1 from being transferred to the upper part and the surrounding area of ​​the mechanism. On the one hand, it can prevent high temperature from causing thermal damage to the machine tool components connected to the cutter body 1, thus extending the service life of the machine tool components. On the other hand, it can also prevent operators from being burned by high temperature when approaching the mechanism, thus improving the safety of the mechanism. The heat dissipation fins 6 are made of aluminum alloy. There are multiple sets of heat dissipation fins 6, which are evenly arranged on the surface of the cutter body 1. The spacing between two adjacent heat dissipation fins 6 is 3-5mm. The heat dissipation fins 6 are made of aluminum alloy, which has good thermal conductivity and heat dissipation performance. The multiple sets are evenly arranged with a spacing of 3-5mm. The design maximizes the contact area between the heat dissipation fins 6 and the air. At the same time, the reasonable spacing avoids obstruction of airflow between the fins, accelerates the air convection speed, further improves the heat dissipation efficiency of the blade body 1, and enhances the self-cooling effect of the mechanism. A gap of 0.5-1mm is left between the outer wall of the high thermal conductivity core 4 and the inner wall of the heat conduction cavity 2, and the gap is filled with thermal grease. The thermal grease can fill the tiny gap between the two, expel air, and make the high thermal conductivity core 4 and the inner wall of the heat conduction cavity 2 achieve a tighter thermal contact, reduce heat loss during the transfer process, and significantly improve the heat conduction efficiency from the high thermal conductivity core 4 to the blade body 1.

[0026] Please see Figure 2 , Figure 3 and Figure 4 The inner wall of the fixing groove 3 is provided with internal threads, and the surface of the fixing block 5 is provided with external threads. The fixing groove 3 and the fixing block 5 are fixedly connected by a threaded ring. Compared with simple snap-fit ​​methods, the threaded connection can provide a more stable fixing effect, preventing the high thermal conductivity core 4 from shifting due to vibration and other factors during operation. At the same time, the threaded connection structure is simple. When it is necessary to replace or maintain the high thermal conductivity core 4, it can be disassembled and assembled simply by rotating, which is convenient and reduces the difficulty and cost of maintenance. There are two sets of threaded holes 13, and the other set of threaded holes 13 is opened on the surface of the cutter body 1. The fixing bolts 18 are inserted inside the threaded holes 13. The connecting shaft 9 and the cutter body 1 are fixedly connected by the fixing bolts 18. The two sets of threaded holes 13 and the fixing bolts 18 are used to tightly fix the connecting shaft 9 and the cutter body 1, which further enhances the connection strength between the connecting shaft 9 and the cutter body 1. It avoids relative loosening between the connecting shaft 9 and the cutter body 1 during high-intensity cutting operations, ensures the structural stability of the entire cutting mechanism, and provides a reliable guarantee for stable cutting.

[0027] Please see Figure 3 , Figure 4and Figure 5 A limiting groove 17 is formed on the upper surface of the connecting shaft 9. There are two sets of positioning posts 8 and positioning grooves 11, arranged symmetrically. The positioning posts 8 and positioning grooves 11 are matched, and the two sets of symmetrically arranged positioning posts 8 cooperate with the limiting grooves 17, playing a dual positioning role during the assembly of the high thermal conductivity core 4 and the connecting shaft 9. This effectively prevents circumferential or radial misalignment during assembly, allowing the heat-conducting boss 7 of the high thermal conductivity core 4 to be precisely embedded in the heat-conducting groove 10 of the connecting shaft 9, ensuring a smooth heat transfer path and improving the overall performance. The overall assembly precision of the components is ensured by the presence of two sets of locating blocks 14 symmetrically arranged on the surface of the connecting shaft 9. A locating groove 17 is provided inside the mounting groove 16, and the locating blocks 14 and the locating groove 17 are matched. The two sets of symmetrically arranged locating blocks 14 cooperate with the locating groove 17 in the mounting groove 16, which can effectively limit the relative rotation between the connecting shaft 9 and the cutting blade 15, and prevent the cutting edge position from shifting due to the relative rotation of the two during the cutting process. This ensures the dimensional and shape accuracy of the cutting process and improves the quality of the processed products.

[0028] The implementation principle of this application embodiment is as follows: First, thermally conductive silicone grease is filled into the gap between the outer wall of the high thermal conductivity core 4 and the inner wall of the thermally conductive cavity 2. Then, the high thermal conductivity core 4 is inserted into the thermally conductive cavity 2 of the cutter body 1, so that the fixing block 5 at the top of the high thermal conductivity core 4 is aligned with the fixing groove 3 of the cutter body 1. By rotating the high thermal conductivity core 4, the high thermal conductivity core 4 is securely installed in the cutter body 1 by utilizing the threaded engagement between the fixing block 5 and the fixing groove 3. Then, the connecting shaft 9 is inserted into the mounting groove 16 of the cutting blade 15, so that the limiting block 14 on the surface of the connecting shaft 9 is embedded in the limiting groove 17 in the mounting groove 16. At the same time, it is ensured that the blocking plate 12 at the bottom of the connecting shaft 9 overlaps in the mounting groove 16, so as to achieve precise positioning and initial fixation of the connecting shaft 9 and the cutting blade 15, preventing relative rotation and axial detachment. Then, the connecting shaft 9, which has been assembled with the cutting blade 15, is aligned with the corresponding installation position of the cutter body 1, so that the positioning post at the bottom of the high thermal conductivity core 4 is aligned with the corresponding installation position of the cutter body 1. The cutting insert 15 is embedded in the limiting groove 17 on the upper surface of the connecting shaft 9, while ensuring that the threaded hole 13 on the surface of the connecting shaft 9 is aligned with the threaded hole 13 on the surface of the tool body 1. Then, the fixing bolt 18 is inserted into the aligned threaded hole 13 and tightened to achieve a stable connection between the connecting shaft 9 and the tool body 1, thereby completing the assembly of the cutting insert 15 and the tool body 1. During the machining of the part, the cutting insert 15 generates heat when in contact with the part. The heat is transferred to the connecting shaft 9 through the heat-conducting groove 10 of the connecting shaft 9, and then transferred to the heat-conducting boss 7 of the high heat conductivity core 4 through the heat-conducting groove 10 of the connecting shaft 9. The high heat conductivity core 4 quickly conducts the heat to the tool body 1, and the tool body 1 then dissipates the heat to the outside through the heat dissipation fins 6 on its surface to achieve self-cooling heat dissipation. At the same time, the heat insulation sleeve 20 prevents the heat from the tool body 1 from being transferred upward, protecting the surrounding parts and the safety of the operators. The limiting and fixing structures ensure the stability of each part during the cutting process, ensuring cutting accuracy and machining quality.

Claims

1. A self-cooled high-efficiency cutting mechanism based on part machining, comprising a cutter body (1) and a cutting insert (15), characterized in that: The blade body (1) has a heat-conducting cavity (2) inside. The top of the inner wall of the heat-conducting cavity (2) has a fixing groove (3). A high thermal conductivity core (4) is inserted inside the heat-conducting cavity (2). A fixing block (5) is fixedly connected to the top of the high thermal conductivity core (4). The fixing block (5) is inserted inside the fixing groove (3). A heat dissipation fin (6) is fixedly connected to the surface of the blade body (1). A heat-conducting boss (7) is fixedly connected to the bottom of the high thermal conductivity core (4). A positioning post (8) is fixedly connected to the bottom of the high thermal conductivity core (4). A connecting shaft (9) is inserted inside the blade body (1). A heat-conducting groove (10) is opened on the upper surface of the connecting shaft (9). The heat-conducting boss (7) passes through the interior of the heat-conducting groove (10). The surface of the cutting blade (15) is provided with a mounting groove (16). The connecting shaft (9) passes through the interior of the mounting groove (16). The bottom end of the connecting shaft (9) is fixedly connected with a blocking disc (12). The blocking disc (12) overlaps the interior of the mounting groove (16). The surface of the connecting shaft (9) is fixedly connected with a limiting block (14). The surface of the connecting shaft (9) is provided with a threaded hole (13).

2. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: The top of the blade (1) is provided with a connecting keyway (19), and the top of the blade (1) is also covered with a heat insulation sleeve (20), which is made of ceramic fiber material.

3. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: The heat dissipation fins (6) are made of aluminum alloy. There are multiple sets of heat dissipation fins (6), which are evenly arranged on the surface of the blade body (1). The distance between two adjacent heat dissipation fins (6) is 3-5mm.

4. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: A gap of 0.5-1mm is left between the outer wall of the high thermal conductivity core (4) and the inner wall of the thermally conductive cavity (2), and the gap is filled with thermally conductive silicone grease.

5. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: The inner wall of the fixing groove (3) is provided with internal threads, and the surface of the fixing block (5) is provided with external threads. The fixing groove (3) and the fixing block (5) are fixedly connected by a threaded ring.

6. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: There are two sets of threaded holes (13), and the other set of threaded holes (13) is opened on the surface of the blade body (1). A fixing bolt (18) is inserted inside the threaded hole (13), and the connecting shaft (9) and the blade body (1) are fixedly connected by the fixing bolt (18).

7. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: The upper surface of the connecting shaft (9) is provided with a limiting groove (17). There are two sets of positioning posts (8) and positioning grooves (11) arranged symmetrically, and the positioning posts (8) and positioning grooves (11) are matched.

8. The self-cooling high-efficiency cutting mechanism based on part machining according to claim 1, characterized in that: There are two sets of limiting blocks (14), which are symmetrically arranged on the surface of the connecting shaft (9). A limiting groove (17) is opened inside the mounting groove (16), and the limiting blocks (14) and the limiting groove (17) are matched.

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