Cutter for rapid milling

Abstract

The utility model relates to the technical field of machining, and particularly discloses a cutter for quick milling, which comprises a cutter chuck, a connecting cutter bar, a supporting cutter bar, an extension bar, a plurality of mounting blocks, a plurality of stabilizing blocks and a cutting mechanism, wherein the length of the connecting cutter bar is not less than 800mm, and the length of the extension bar is not less than 400mm; the connecting cutter bar is fixedly connected with the extension bar and is perpendicular to the extension bar; the other end of the cutter chuck is connected with the connecting cutter bar through a first fixing bolt; the connecting cutter bar is fixedly connected with one end of each mounting block, and the other end of each mounting block is fixedly connected with the supporting cutter bar; the stabilizing blocks are located between every two adjacent mounting blocks, one ends of the stabilizing blocks are fixedly connected with the connecting cutter bar, and the other ends of the stabilizing blocks are fixedly connected with the supporting cutter bar; and a cutting mechanism is mounted on the extension rod and is far away from the stabilizing block. According to the utility model, the efficiency of processing a workpiece with a long-depth outer circle can be improved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a cutting tool for high-speed milling. Background Technology

[0002] In the field of boring machine machining, machining large workpieces with great depth and outer diameter, such as crossheads, has always been challenging. These workpieces typically have large diameters and significant machining depths, generally 700-1200mm in diameter and 200-400mm in depth, with very limited machining allowances. Under these circumstances, out-of-tolerance deformation can easily occur during machining, thus affecting the final dimensional accuracy and surface quality.

[0003] Current machining methods rely on the cooperation between machine tools and boring tools. The machine tool rotates the boring tool to machine the workpiece, requiring multiple adjustments to the position of the rotating screw on the machine tool and fine-tuning of the boring tool position to machine large workpieces with large diameters and significant machining depths. Specifically, the tool used in conjunction with a boring machine's rapid milling operation includes a tool chuck, a connecting rod, an extension rod, and inserts. The tool chuck is mounted on the connecting rod and is connected to the boring machine spindle. The tool chuck and the extension rod are connected by a first bolt, and the extension rod is parallel to the outer cylindrical surface of the workpiece. The connecting rod is vertically and fixedly mounted on the extension rod and is used for machining in the axial depth direction of large workpieces. An insert is mounted at one end of the connecting rod, away from the extension rod. The boring machine spindle drives the connecting rod and the extension rod to rotate via the tool chuck, allowing the insert to machine the large workpiece. The connecting rod should not exceed 900mm in length, and the extension rod should not exceed 0.3 meters in length. If this tool is used directly to machine workpieces with long and deep outer diameters, the extension rod's position needs to be adjusted multiple times to complete the machining. This method not only has limited accuracy but also results in slow adjustment speed, low machining efficiency, increased operational difficulty, and low yield. Utility Model Content

[0004] To improve the processing efficiency and yield of long and deep outer diameter workpieces, and to reduce processing difficulty.

[0005] This embodiment provides a cutting tool for rapid milling, including a tool chuck with a countersunk hole at one end for connection to a machine tool spindle. The tool also includes a connecting tool shank, a supporting tool shank, an extension rod, multiple mounting blocks, multiple stabilizing blocks, and a cutting mechanism. The connecting tool shank is at least 800 mm long, and the extension rod is at least 400 mm long. The connecting tool shank and the extension rod are fixedly connected and perpendicular to each other. The other end of the tool chuck is connected to the connecting tool shank via a first fixing bolt. The connecting tool shank is fixedly connected to one end of each of the mounting blocks, and the other ends of each mounting block are fixedly connected to the supporting tool shank, with the mounting blocks facing away from the tool chuck. Multiple stabilizing blocks are located between adjacent mounting blocks, with one end fixedly connected to the connecting tool shank and the other end fixedly connected to the supporting tool shank. The supporting tool shank is fixedly connected to the extension rod, which faces away from the stabilizing blocks. A cutting mechanism is mounted on the extension rod, and the cutting mechanism is located away from the stabilizing blocks.

[0006] Beneficial effects: First, by designing a tool structure with multiple mounting blocks and stabilizing blocks, and with the connecting rod and extension rod lengths of no less than 700mm and 400mm respectively, the tool can machine a longer depth of outer diameter in one pass. This structure avoids the problem of traditional tools needing multiple position adjustments due to insufficient extension rod length, thus significantly reducing downtime during machining and improving overall machining efficiency.

[0007] Secondly, the inclusion of mounting blocks and stabilizing blocks further enhances the overall rigidity of the tool, reducing vibration and deformation during machining. This stability is particularly important for machining long, deep external cylindrical workpieces, as it ensures machining accuracy and reduces dimensional deviations and surface roughness issues caused by tool vibration.

[0008] Then, the tool chuck is connected to the connecting tool holder and the supporting tool holder via the first fixing bolt. This connection method is not only robust and reliable, but also ensures the coaxiality and positioning accuracy of the tool during machining. Furthermore, the rational layout of the mounting block and stabilizing block further optimizes the structural stability of the tool, enabling the cutting mechanism to maintain stable cutting force and cutting direction during machining. This design effectively reduces machining errors, improves machining accuracy, and meets the requirements of high-precision machining.

[0009] Furthermore, the design of this tool simplifies the operation process that requires frequent tool position adjustments when machining long, deep outer diameters, as is common with existing tools. Due to the increased length of the extension rod, the tool can complete a longer machining stroke in one go, reducing the operator's adjustment workload. At the same time, the optimized tool structure makes installation and disassembly more convenient, further improving operational convenience and work efficiency.

[0010] Meanwhile, this tool design boasts excellent versatility and adaptability. By adjusting the number and position of the mounting blocks and stabilizing blocks, it can meet the needs of workpieces with different diameters and machining depths. Furthermore, the connection method between the tool chuck and the machine tool spindle ensures compatibility with existing equipment, allowing for immediate use without the need for additional adapters. This design enables the tool to be widely applied in various machining scenarios, offering high practicality and economy.

[0011] Finally, due to the optimized tool structure and enhanced stability, vibration and impact forces during the cutting process are effectively reduced. This not only helps improve machining accuracy but also reduces tool wear and damage, thereby extending tool life. Furthermore, a well-designed tool can reduce energy consumption during machining, further lowering production costs.

[0012] Preferably, there are two stabilizing blocks and two mounting blocks, with the mounting blocks located at the top and bottom of the connecting tool holder, respectively; the shortest distance between the stabilizing blocks and the mounting blocks is 200mm, and the shortest distance between the two stabilizing blocks is 300mm.

[0013] Beneficial effects: First, by setting mounting blocks at the top and bottom of the connecting tool holder and configuring stabilizing blocks between adjacent mounting blocks, this structure significantly enhances the overall rigidity of the tool. The rational layout of the mounting blocks and stabilizing blocks forms a stable support frame, effectively resisting the cutting forces and vibrations generated during machining, and reducing tool deformation and vibration during high-speed rotation or heavy-load machining. This stability is particularly important for machining long-depth external cylindrical workpieces, as it ensures that the tool maintains stable cutting performance under complex working conditions.

[0014] Secondly, the shortest distance between the stabilizing block and the mounting block, as well as the shortest distance between the two stabilizing blocks, are precisely set to 200mm and 300mm, respectively. This precise geometric layout ensures uniform stress distribution among the various components of the tool. This design not only optimizes the mechanical properties of the tool but also effectively avoids structural damage caused by localized stress concentration.

[0015] At the same time, this precise layout can ensure the positioning accuracy of the tool during the machining process, reduce machining errors caused by structural deformation or vibration, thereby improving machining accuracy and surface quality.

[0016] Furthermore, by installing mounting blocks and stabilizing blocks at the upper and lower ends of the connecting tool holder, the support area of ​​the tool is increased, thereby improving the reliability of the cutting process. This design effectively reduces tool deviation or damage caused by uneven cutting forces during machining, especially important when machining long-depth external cylindrical workpieces. It ensures that the tool maintains a stable cutting state throughout the machining process, reducing downtime due to tool damage and thus improving production efficiency.

[0017] Next, by installing mounting blocks and stabilizing blocks at the upper and lower ends of the connecting tool holder, the support area of ​​the tool is increased, thereby improving the reliability of the cutting process. This design effectively reduces tool deviation or damage caused by uneven cutting forces during machining, especially important when machining long-depth external cylindrical workpieces. It ensures that the tool maintains a stable cutting state throughout the machining process, reducing downtime due to tool damage and thus improving production efficiency.

[0018] Then, by rationally setting the position and spacing of the mounting blocks and stabilizing blocks, the cutting tool can adapt to the needs of different machining depths and diameters. This design gives the cutting tool excellent versatility and flexibility, enabling it to meet the requirements of various machining scenarios without frequent tool changes or adjustments to the tool structure. This adaptability not only improves the practicality of the cutting tool but also reduces the user's operating costs.

[0019] Finally, the layout of the mounting blocks and stabilizing blocks effectively improves tool stability, significantly reducing the adjustment time required during machining. This design allows the tool to quickly reach a stable working state, reducing repeated adjustments caused by tool vibration or deformation, thereby improving machining efficiency and reducing operational difficulty.

[0020] Preferably, the thickness of the stabilizing block is 20-40mm, and the thickness of the mounting block is 30-50mm.

[0021] Beneficial effects: First, limiting the thickness range helps to achieve a balance between tool weight and performance. While excessive thickness can provide higher strength, it increases tool weight and may lead to increased centrifugal force during high-speed rotation, affecting machining accuracy and tool life. An appropriate thickness range, on the other hand, can reduce tool weight and improve its dynamic performance while maintaining performance, making it more suitable for high-efficiency machining scenarios such as rapid milling.

[0022] Secondly, by limiting the thickness range of the stabilizing block and mounting block, sufficient strength and rigidity of these critical components can be ensured during machining. The stabilizing block and mounting block are important supporting components in the tool structure, and their thickness directly affects the tool's resistance to deformation and stability during cutting. Appropriately selecting the thickness range can ensure structural strength while avoiding material waste, allowing the tool to remain stable when machining long-depth external cylindrical workpieces, reducing vibration and deformation.

[0023] Furthermore, the optimized thickness range of the stabilizing block and mounting block ensures tool stability during machining. This stability is crucial for machining accuracy, especially when machining long, deep external cylindrical workpieces. A well-designed thickness reduces tool deformation under cutting forces, thereby improving the precision and quality of the machined surface and reducing dimensional deviations and surface roughness.

[0024] Furthermore, an appropriate thickness range can improve tool durability. Stabilizers and mounting blocks withstand significant cutting forces and vibrations during machining; a suitable thickness can effectively reduce wear and fatigue damage to these components. By optimizing the thickness range, tool life can be extended, replacement frequency reduced, and production costs lowered.

[0025] Finally, by appropriately selecting a thickness range, the amount of material used can be reduced while meeting performance requirements, thereby lowering manufacturing costs. Simultaneously, this design can also reduce material waste during processing, improve material utilization, and further reduce production costs.

[0026] Preferably, it also includes a support frame, one end of which is fixedly mounted on the support blade and the other end of which is fixedly mounted on the extension rod to support the extension rod; the cross-sectional area enclosed by the support frame, the support blade, and the extension rod forms a triangular structural area.

[0027] Beneficial effects: First, the triangular structure is one of the most stable structures in geometry, possessing extremely high resistance to deformation and rigidity. By designing the support frame, tool holder, and extension rod into triangular structural areas, the tool can better resist cutting forces and vibrations during machining. This design is particularly suitable for machining long, deep external cylindrical workpieces, as long extension rods are prone to deformation due to vibration and bending moments during cutting. The triangular structure can effectively disperse and absorb these forces, thereby significantly improving tool stability.

[0028] Secondly, due to the high stability of the triangular structure, the cutting tool can maintain a more precise cutting path and cutting angle during machining. This stability reduces dimensional deviations and surface roughness problems caused by tool vibration or deformation, thus significantly improving machining accuracy and surface quality. This is particularly important for machining high-precision mechanical parts, meeting the high precision and high quality requirements of modern machining.

[0029] Then, the triangular structure optimizes the transmission path of cutting forces. The cutting force is transmitted through the cutting mechanism to the extension rod, then through the support frame to the support shank, and finally distributed throughout the entire tool structure. This design effectively reduces local stress concentration and avoids tool damage caused by excessive stress.

[0030] Meanwhile, the triangular structure can better absorb and disperse vibrations, further improving the smoothness of the cutting process. Moreover, due to the high rigidity and stability of the triangular structure, the tool can withstand greater cutting forces and vibrations during machining without easily being damaged. This design effectively reduces tool wear and fatigue damage, thereby extending tool life. Simultaneously, the optimized cutting force transmission path also reduces stress on various tool components, further improving tool durability.

[0031] Furthermore, the triangular support frame design allows the cutting tool to adapt to machining requirements of different lengths and diameters. By adjusting the length and angle of the support frame, the tool's support performance can be optimized, making it adaptable to various machining scenarios. This design not only improves the versatility of the cutting tool but also reduces the need for frequent tool changes due to variations in machining conditions, thereby lowering production costs.

[0032] Furthermore, the simple geometry of the triangular structure makes it easy to design and manufacture. This design reduces complex machining steps and lowers manufacturing costs.

[0033] At the same time, the stability of the triangular structure reduces reliance on other complex support systems, further simplifying the overall design of the tool and making it more economical and practical.

[0034] Finally, the dynamic performance of the cutting tool is crucial during high-speed machining. The triangular structure effectively reduces tool vibration and wobbling during high-speed rotation, improving its dynamic stability. This design allows the tool to operate at higher speeds, thereby increasing machining efficiency while maintaining machining accuracy and surface quality.

[0035] Preferably, the connecting tool bar and the supporting tool bar are of equal length and parallel to each other, and their ends are aligned.

[0036] Beneficial Effects: The design, where the connecting tool holder and supporting tool holder are of equal length and parallel to each other, with their ends aligned, significantly improves the overall structural symmetry and stability of the tool. This symmetrical layout ensures more even force distribution on the tool during machining, reducing vibration and uneven cutting force caused by structural asymmetry, thereby improving machining accuracy and surface quality. Simultaneously, the equal and parallel lengths optimize the tool's space utilization, enabling it to maintain a stable cutting posture when machining long-depth external cylindrical workpieces, reducing machining errors caused by tool deformation or misalignment. Furthermore, the end-to-end alignment simplifies tool installation and adjustment, improves assembly accuracy, reduces operational difficulty, and further enhances the tool's reliability and practicality.

[0037] Preferably, the distance between the extension rod and the support rod is at least 400 mm.

[0038] Beneficial effects: First, in machining, the rigidity of the cutting tool is crucial for machining accuracy and surface quality. By setting a minimum distance between the extension rod and the support rod, interference from the support rod or limitations on its freedom of movement during machining can be avoided. This design reduces tool vibration and deformation during cutting, thereby improving tool rigidity and stability and ensuring a smooth machining process.

[0039] Secondly, maintaining a certain distance ensures that the extension bar can withstand greater cutting forces during cutting without excessive deformation. This design helps optimize the distribution of cutting forces, allowing them to be transmitted more evenly to the support bar, reducing localized stress concentration, and thus improving the overall tool life and reliability.

[0040] Meanwhile, setting a minimum distance between the extension rod and the support rod effectively prevents physical interference between them during machining. This design ensures that the various components of the tool do not interfere with each other during movement, thereby reducing damage caused by collisions or friction and improving the tool's durability and reliability.

[0041] Subsequently, during the cutting process, chip removal has a significant impact on machining efficiency and surface quality. Maintaining an appropriate distance between the extension bar and the support bar provides sufficient space for chip removal, preventing chip accumulation in the tool structure and thus reducing tool damage and surface quality issues caused by chip buildup.

[0042] Furthermore, by setting a minimum distance, the tool can better adapt to different machining conditions, such as different workpiece materials, machining depths, and cutting speeds. This design provides the tool with greater flexibility, enabling it to maintain good performance in a variety of machining scenarios without frequent adjustments to the tool structure.

[0043] Then, due to the enhanced stability of the cutting tool, the cutting force distribution is more uniform, and chip accumulation and interference between tool components are avoided, thus significantly improving machining accuracy and surface quality. This design reduces machining errors and surface roughness, meeting the requirements of high-precision machining.

[0044] Finally, setting clear distance requirements provides clear guidance for tool design and manufacturing, reducing machining problems caused by poor design. This design not only simplifies the tool manufacturing process but also reduces manufacturing costs and improves production efficiency.

[0045] Preferably, the other end of the tool chuck is connected to the support tool rod by a first fixing bolt.

[0046] Beneficial Effects: By connecting the other end of the tool chuck to the support shank using a first fixing bolt, this design achieves a robust connection between the tool chuck and the support shank, ensuring the stability of the overall tool structure. This connection method not only effectively transmits cutting forces but also guarantees the reliability and accuracy of the tool under high-speed rotation or heavy cutting loads. Simultaneously, the bolted connection facilitates disassembly and installation, allowing users to quickly replace or adjust tool components according to different machining needs, improving tool versatility and maintenance convenience. Furthermore, this connection method ensures coaxiality between the tool chuck and the support shank, thereby reducing vibration and errors during machining, further improving machining accuracy and surface quality.

[0047] Preferably, the cutting mechanism includes a blade chuck and a cutting blade, the blade chuck and the cutting blade being fixedly connected; the blade chuck and the extension rod are also fixedly connected.

[0048] Beneficial Effects: The design of this cutting mechanism achieves stable installation and precise positioning of the cutting insert by fixing the insert chuck to the cutting insert and the insert chuck to the extension rod. This structure ensures that the cutting insert maintains a stable cutting force and cutting direction throughout the machining process, reducing machining errors caused by insert loosening or positional misalignment, thereby significantly improving machining accuracy and surface quality. Simultaneously, the fixed connection method enhances the overall rigidity of the cutting mechanism, enabling it to withstand larger cutting forces without deformation or damage, thus extending tool life.

[0049] Preferably, the blade chuck is provided with a countersunk groove, and the extension rod is provided with a boss, the countersunk groove and the boss are matched and engaged for fixation.

[0050] Beneficial effects: By incorporating a countersunk groove on the insert chuck and a matching boss on the extension rod, precise positioning and a secure connection between the insert chuck and the extension rod are achieved through the engagement of the countersunk groove and the boss. This structural design not only effectively enhances the vibration resistance and stability of the cutting mechanism during machining, ensuring that the cutting insert will not shift or loosen under high-speed rotation or large cutting forces, thereby improving machining accuracy and surface quality, but also simplifies the assembly process between the insert chuck and the extension rod, facilitating quick installation and disassembly, further improving tool maintenance convenience and work efficiency.

[0051] Preferably, it further includes a second fixing bolt, through which the blade chuck and the extension rod are connected; the blade chuck is provided with a waist-shaped through hole, through which the second fixing bolt passes.

[0052] Beneficial effects: By incorporating a second fixing bolt and designing a waist-shaped through hole in the insert chuck, the connection between the insert chuck and the extension rod is both secure and offers a degree of adjustability. The waist-shaped through hole design allows the second fixing bolt to move laterally within a certain range, effectively compensating for hole mismatch issues caused by machining errors or installation deviations during assembly. This ensures that the insert chuck and extension rod can be installed quickly and accurately. This design not only improves the assembly efficiency of the cutting tool but also enhances its stability during machining.

[0053] Beneficial effects of utility model

[0054] First, with a longer connecting bar (no less than 800mm) and extension bar (no less than 400mm), the tool can machine a longer outer diameter in one go, avoiding the problem of traditional tools needing to adjust their position multiple times due to insufficient extension bar length. This significantly reduces downtime during the machining process and improves overall machining efficiency.

[0055] Secondly, by incorporating multiple mounting blocks and stabilizing blocks, the overall rigidity of the cutting tool is significantly enhanced, reducing vibration and deformation during machining. This stability is particularly important for machining long-depth external cylindrical workpieces, ensuring machining accuracy and reducing dimensional deviations and surface roughness issues caused by tool vibration. The tool chuck is connected to the connecting tool holder and the supporting tool holder via a first fixing bolt. This connection method is not only robust and reliable but also ensures the coaxiality and positioning accuracy of the tool during machining. The cutting mechanism is further ensured by the engagement and fixation of the insert chuck with the countersunk groove and boss of the extension rod, guaranteeing the stability and precise positioning of the cutting insert.

[0056] Furthermore, by adjusting the number and position of the mounting blocks and stabilizing blocks, the cutting tool can adapt to workpieces of different diameters and machining depths. The connection method between the tool chuck and the machine tool spindle also ensures its compatibility with existing equipment, allowing it to be put into use without the need for additional adapters.

[0057] Subsequently, due to the optimization of the tool structure and enhanced stability, vibration and impact forces during the cutting process are effectively reduced, decreasing tool wear and damage, thereby extending tool life. It also reduces energy consumption during machining, further lowering production costs.

[0058] Finally, a triangular structural area is formed between the support frame, the support tool holder, and the extension rod. This structure has extremely high resistance to deformation and rigidity, effectively dispersing and absorbing cutting forces and vibrations, further improving tool stability and reducing tool vibration and wobbling during high-speed rotation. The design of the connecting tool holder and the support tool holder being of equal length and parallel to each other, with their ends aligned, enhances the overall structural symmetry and stability of the tool, reduces vibration and uneven cutting force caused by structural asymmetry, and optimizes the space utilization of the tool. Attached Figure Description

[0059] Figure 1 A front view (a) of a cutting tool for rapid milling according to an embodiment;

[0060] Figure 2 The following are multiple views of the tool chuck in the embodiment. Specifically, (a) is the front view of the tool chuck and (b) is the side view of the tool chuck.

[0061] Figure 3 The following are multiple views of the first fixing bolt in the embodiment. Specifically, (a) in the figure is the front view of the first fixing bolt, and (b) is the side view of the first fixing bolt.

[0062] Figure 4 A side view of a cutting tool for rapid milling, as shown in the embodiment;

[0063] Figure 5 This is a front view of the cutting mechanism in the embodiment;

[0064] Figure 6 This is a side view of the cutting mechanism in the embodiment;

[0065] Figure 7 This is a front view (b) of a cutting tool for rapid milling according to an embodiment. Detailed Implementation

[0066] The reference numerals in the accompanying drawings include:

[0067] 1. Tool chuck; 2. Connecting tool holder; 3. Cutting mechanism; 4. Second threaded hole; 5. Supporting tool holder; 6. Third threaded hole; 7. Mounting block; 8. Stabilizing block; 9. Support frame; 10. First fixing bolt; 31. Cutting blade; 32. Waist-shaped through hole; 33. Second fixing bolt; 34. Tool chuck.

[0068] Example 1

[0069] This embodiment provides a cutting tool for rapid milling, including a tool chuck 1, a connecting tool holder 2, a supporting tool holder 5, an extension rod, two mounting blocks 7, two stabilizing blocks 8, a first fixing bolt 10, and a cutting mechanism 3.

[0070] Specifically, such as Figure 1 and Figure 2 As shown, (a) is a front view of the tool chuck 1. The left end of the tool chuck 1 has a countersunk hole for connection to the machine tool spindle, allowing the machine tool to rotate a milling tool for rapid milling, thus machining workpieces with a diameter of 700-1200mm and a machining depth of 200-400mm, including both the length and outer diameter. The right end of the tool chuck 1 has a first threaded hole that matches the thread of the first fixing bolt 10, as shown in (b). The middle portions of the connecting tool shank 2 and the supporting tool shank 5 have second threaded holes 4 and third threaded holes 6, respectively, which match the threads of the first fixing bolt 10. The right end of the tool chuck 1 is connected to both the connecting tool shank 2 and the supporting tool shank 5 via the first fixing bolt 10. A mounting block 7 and a stabilizing block 8 are provided between the connecting tool shank 2 and the supporting tool shank 5. The left ends of the mounting block 7 and the stabilizing block 8 are fixedly connected to the connecting tool shank 2, and the right ends are fixedly connected to the supporting tool shank 5. Among them, mounting blocks 7 are located at the upper and lower ends respectively, and stabilizing block 8 is located between the upper and lower mounting blocks 7. Figure 7 As shown, the shortest distance between the stabilizing block 8 and the mounting block 7 is c, where c = 200 mm, and the shortest distance between the two stabilizing blocks 8 is d, where d = 300 mm. In this embodiment, the connecting tool bar 2 and the supporting tool bar 5 are of equal length and parallel to each other, with their ends aligned. The length of the connecting tool bar 2 is not less than a, where a = 800 mm, and the length of the extension rod is not less than b, where b = 400 mm. Extension rods are fixedly installed at the upper and lower ends of the supporting tool holder, and a cutting mechanism 3 is installed at the right end of the extension rod. The cutting mechanism 3 is used to process workpieces with a depth of 200-400 meters and an outer diameter. The connecting tool bar 2 and the supporting tool bar 5 are parallel to the outer diameter contour of the workpiece, i.e., to the cross-section of the workpiece, and the extension rod is perpendicular to the outer diameter contour of the workpiece. The extension rod is at least 400 mm from the center of the supporting tool bar 5. Figure 3 As shown, the first fixing bolt 10 is an M20.

[0071] like Figure 1 As shown, a tool for rapid milling also includes a support frame 9, one end of which is fixedly mounted on a support shank 5, and the other end is fixedly mounted on an extension rod. It can be seen that the support shank 5 and the extension rod are perpendicular, and the support frame 9 acts as the hypotenuse, so that in the front view direction, the support frame 9, the support shank 5, and the extension rod form a right-angled triangular structure.

[0072] like Figure 4 , Figure 5 and Figure 6 As shown, the cutting mechanism 3 includes a chuck 34 and a cutting blade 31, which are fixedly connected. The cutting blade 31 is used to process the workpiece. The chuck 34 has a countersunk groove, and the extension rod has a boss. The countersunk groove and the boss are matched and engaged for fixation. The chuck 34 and the extension rod are connected by a second fixing bolt 33. The chuck 34 has a waist-shaped through hole 32 located below the cutting blade 31, and the second fixing bolt 33 passes through the waist-shaped through hole 32. In this embodiment, the second fixing bolt 33 is an M8 bolt, and there are two of them.

[0073] The usage method of this embodiment

[0074] The tool chuck is connected to the machine tool spindle. The rotation of the machine tool spindle drives the rotation of the tool used for rapid milling. The cutting insert is used to process the workpiece.

[0075] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0076] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0077] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0078] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

[0079] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cutting tool for rapid milling, comprising a tool chuck, one end of which has a countersunk hole for connection to a machine tool spindle, characterized in that, The tool for rapid milling also includes a connecting tool holder, a supporting tool holder, an extension rod, multiple mounting blocks, multiple stabilizing blocks, and a cutting mechanism; wherein, the length of the connecting tool holder is not less than 800mm, and the length of the extension rod is not less than 400mm; the connecting tool holder and the extension rod are fixedly connected and perpendicular to each other; The other end of the tool chuck is connected to the connecting tool bar via a first fixing bolt; the connecting tool bar is fixedly connected to one end of multiple mounting blocks respectively, and the other end of the multiple mounting blocks is fixedly connected to the supporting tool bar respectively, with the mounting blocks facing away from the tool chuck; multiple stabilizing blocks are located between two adjacent mounting blocks, with one end of the stabilizing block fixedly connected to the connecting tool bar and the other end fixedly connected to the supporting tool bar; the supporting tool bar is fixedly connected to the extension rod, with the extension rod facing away from the stabilizing blocks, and a cutting mechanism is mounted on the extension rod, with the cutting mechanism away from the stabilizing blocks.

2. The cutting tool for rapid milling according to claim 1, characterized in that, There are two stabilizing blocks and two mounting blocks. The mounting blocks are located at the top and bottom of the connecting tool holder, respectively. The shortest distance between the stabilizing blocks and the mounting blocks is 200mm, and the shortest distance between the two stabilizing blocks is 300mm.

3. A cutting tool for rapid milling according to claim 1, characterized in that, The thickness of the stabilizing block is 20-40mm, and the thickness of the mounting block is 30-50mm.

4. A cutting tool for rapid milling according to claim 1, characterized in that, It also includes a support frame, one end of which is fixedly installed on the support bar and the other end is fixedly installed on the extension bar to support the extension bar; the cross-sectional area enclosed by the support frame, the support bar and the extension bar forms a triangular structural area.

5. A cutting tool for rapid milling according to claim 1, characterized in that, The connecting tool holder and the supporting tool holder are of equal length and parallel to each other, and their ends are aligned.

6. A cutting tool for rapid milling according to claim 1, characterized in that, The distance between the extended rod and the support rod should be at least 400mm.

7. A cutting tool for rapid milling according to claim 1, characterized in that, The other end of the tool chuck is connected to the support tool bar via the first fixing bolt.

8. A cutting tool for rapid milling according to claim 1, characterized in that, The cutting mechanism includes a chuck and a cutting blade, which are fixedly connected; the chuck and the extension rod are also fixedly connected.

9. A cutting tool for rapid milling according to claim 8, characterized in that, The blade chuck has a countersunk groove, and the extension rod has a boss. The countersunk groove and the boss are matched and engaged for fixation.

10. A cutting tool for rapid milling according to claim 8, characterized in that, It also includes a second fixing bolt, through which the blade chuck and the extension rod are connected; the blade chuck is provided with a waist-shaped through hole, through which the second fixing bolt passes.

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