A cutting system for machining of metal castings and a method of operating the same

Abstract

The application relates to the technical field of metal casting processing, and particularly discloses a cutting system for metal casting processing and an operating method thereof, which comprises a mounting table, a sliding rail is arranged on the mounting table, a fixed box and a sliding box are arranged on the sliding rail, a first electric chuck and a second electric chuck are arranged between the fixed box and the sliding box, an inner cutting tool set and an outer cutting tool set are arranged on the fixed box and the sliding box, a first adjusting mechanism is arranged on the fixed box, a second adjusting mechanism is arranged on the sliding box, and a driving assembly is arranged on the sliding rail; the pipe is first placed on the first electric chuck and the second electric chuck, the driving assembly adjusts the spacing between the first electric chuck and the second electric chuck, the first electric chuck and the second electric chuck clamp and fix the pipe, and the inner cutting tool set and the outer cutting tool set simultaneously cut the inner wall and the outer wall at two ends of the pipe under the control of the first adjusting mechanism and the second adjusting mechanism, so that the processing efficiency is improved, and errors caused by secondary clamping are avoided.

Description

Technical Field

[0001] This application relates to the field of metal casting processing technology, and in particular to a cutting system for metal casting processing and its operating method. Background Technology

[0002] Metal castings serve as fundamental components in machinery manufacturing, the automotive industry, and construction. During the forming process, when the molten metal cools in the mold, the two ends often become concentrated areas of defects such as impurity segregation, shrinkage cavities, and oxide scale, resulting in a material density and physical properties that are significantly lower than the bulk material. To improve the yield and ensure structural safety, these inferior parts at both ends must be removed by cutting. This process is crucial for ensuring the quality of subsequent processing and the overall mechanical properties of the component.

[0003] Currently, gantry or cantilever cutting machines are typically used for this process. Their core structure includes a moving worktable that supports the casting, a cutting head that provides the main cutting force, often equipped with a grinding wheel or flame torch, and a feed mechanism that drives the cutting head to move along a linear axis in space. During operation, the casting is clamped and fixed on the worktable. The cutting head moves along a set path under program control. After cutting one end of the casting, the casting must be released, turned around, and repositioned before cutting the other end can begin.

[0004] Regarding the aforementioned technologies, since the equipment is usually equipped with only a single cutting head, it can only cut one end at a time, resulting in low overall efficiency. Furthermore, after cutting one end, the casting needs to be clamped and re-aligned, which may lead to positioning errors. This makes it difficult to guarantee the parallelism and length accuracy between the two cut surfaces, increasing the cost of subsequent correction or scrapping. Therefore, improvements are needed. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a cutting system for machining metal castings and its operating method.

[0006] This application provides a cutting system and its operating method for machining metal castings, which adopts the following technical solution: A cutting system for machining metal castings and its operating method include a mounting table, a slide rail on the mounting table, a fixed box at one end of the slide rail, a sliding seat on one side of the fixed box, the sliding seat slidably mounted on the slide rail, a sliding box fixedly mounted on the sliding seat, a first electric chuck and a second electric chuck disposed between the fixed box and the sliding box, the first electric chuck being fixedly mounted on the slide rail, and the second electric chuck being fixedly mounted on the sliding seat, with the first electric chuck positioned between the fixed box and the second electric chuck. Each box is equipped with an inner cutting blade group and an outer cutting blade group. The inner cutting blade group is used to cut the inner walls of both ends of the pipe fitting, and the outer cutting blade group is used to simultaneously cut the outer walls of both ends of the pipe fitting. The fixed box is equipped with a first adjustment mechanism for rotating the inner cutting blade group and the outer cutting blade group on the fixed box about the axis of the pipe fitting, and for adjusting the radial feed of the inner cutting blade group and the radial feed of the outer cutting blade group. The sliding box is equipped with a second adjustment mechanism, which is the same as the first adjustment mechanism. The slide rail is equipped with a drive assembly for moving the sliding seat.

[0007] By adopting the above technical solution, the tubular metal casting is first placed on the first and second electric chucks. The drive assembly moves the sliding seat along the slide rail to adjust the distance between the first and second electric chucks for centering and clamping, accommodating tubular castings of different lengths. After adjustment, the tubular metal casting is clamped and fixed by the first and second electric chucks. The inner and outer cutting blade groups installed on the fixed box and sliding box can simultaneously perform rotary cutting on the inner and outer walls of both ends of the tubular casting under the control of the first and second adjustment mechanisms, and control their radial feed respectively, improving processing efficiency while avoiding errors caused by secondary clamping.

[0008] Optionally, the first adjustment mechanism includes a first drive motor, a belt, a driven pulley, a rotating sleeve, a rotating disk, and an adjustment assembly. The first drive motor is fixedly mounted on the mounting platform, the rotating sleeve is rotatably mounted on the fixed box, the driven pulley is fixedly sleeved on the outer wall of the rotating sleeve, and the rotating disk is fixedly mounted on one end of the rotating sleeve near the sliding box. The output shaft of the first drive motor is connected to the driven pulley via the belt. The adjustment assembly is mounted on the rotating sleeve and the rotating disk, and is used to drive the inner cutting blade group and the outer cutting blade group on the fixed box to rotate around the axis of the pipe fitting, and to adjust the radial feed of the inner cutting blade group and the outer cutting blade group.

[0009] By adopting the above technical solution, the first drive motor starts and the driven pulley, rotating sleeve and rotating disk rotate as a whole through belt transmission, providing the inner and outer cutting knife groups with cutting motion around the pipe axis; at the same time, the adjustment component controls the inner and outer cutting knife groups to move radially while rotating, so as to achieve precise control of the cutting depth, thereby completing the composite motion of rotation and radial feed required for simultaneous cutting of inner and outer walls.

[0010] Optionally, the adjustment assembly includes a second drive motor, a connecting rod, an adjustment disk, a mounting disk, and an adjustment structure. The second drive motor is fixedly disposed at the end of the rotating sleeve away from the rotating disk. The connecting rod is fixedly disposed on the output shaft of the second drive motor and disposed inside the rotating sleeve. The mounting disk is fixedly disposed on the side of the rotating disk away from the second drive motor. The adjustment disk is rotatably disposed inside the mounting disk. The end of the connecting rod away from the second drive motor is fixedly connected to the side of the adjustment disk away from the sliding box. The inner cutting blade group and the outer cutting blade group are both radially movable on the mounting disk. The adjustment structure is disposed on the adjustment disk and is used to adjust the radial position of the inner cutting blade group and the outer cutting blade group.

[0011] By adopting the above technical solution, when it is necessary to adjust the radial position of the inner cutting blade assembly, the second drive motor starts, driving the adjusting disc to rotate relative to the mounting disc via the connecting rod. The rotation of the adjusting disc, through the adjustment structure set on it, converts the rotational motion into linear motion that pushes the inner and outer cutting blade assemblies to slide radially along the mounting disc, thereby achieving precise adjustment of the cutting depth of the inner and outer cutting blade assemblies.

[0012] Optionally, the adjustment structure includes a movable block, a spiral groove, and an adjustment block. Both the inner and outer cutting blade groups include multiple sets of cutting blades. The movable block is radially movably disposed on the mounting plate. Multiple sets of adjustment blocks are disposed on the movable block, with each set of adjustment blocks disposed on the side of the movable block near the adjustment plate. Two sets of spiral grooves are disposed, with one set of spiral grooves disposed inside the other set of spiral grooves. Both sets of spiral grooves are located on the side of the adjustment plate near the sliding box. The multiple sets of adjustment blocks connected to the multiple sets of inner cutting blade groups are slidably disposed in the inner spiral grooves, and the multiple sets of adjustment blocks connected to the multiple sets of outer cutting blade groups are slidably disposed in the outer spiral grooves.

[0013] By adopting the above technical solution, when the second drive motor drives the adjusting disc to rotate, since one end of the adjusting block is fixed on the movable block and the other end is slidably installed in the spiral groove on the end face of the adjusting disc, the rotation of the adjusting disc forces the adjusting block to move along the spiral groove trajectory. The radial change of the spiral groove is transmitted to the movable block through the adjusting block, driving the movable block and the cutter mounted on it to move radially along the mounting disc, thereby achieving synchronous and equal radial feed or retraction of the inner and outer cutting blade groups, thus improving the cutting effect on pipe fittings.

[0014] Optionally, the drive assembly includes a third drive motor, a lead screw, and a sliding block. The third drive motor is fixedly mounted on the mounting platform, the lead screw is rotatably mounted on the mounting platform and one end is fixedly connected to the output shaft of the third drive motor, and the sliding block is fixedly mounted on the sliding seat and threadedly connected to the lead screw.

[0015] By adopting the above technical solution, the third drive motor is started to drive the lead screw to rotate. The sliding block, which is threaded to the lead screw, moves along the axis of the lead screw under the thread drive. Since the sliding block is fixedly connected to the sliding seat, it drives the entire sliding seat, sliding box and its components such as the second electric chuck and the second adjustment mechanism to move closer to or away from the fixed box along the slide rail, so as to realize the fitting and clamping of pipes of different lengths, or to realize axial feed movement during the cutting process.

[0016] Optionally, a through rod is provided on the output shaft of the first drive motor, and a socket rod is provided at the end of the through rod away from the first drive motor. The socket rod rotates synchronously with the through rod. A connecting plate is provided at the bottom of the sliding seat, and the socket rod is rotatably mounted on the connecting plate. A drive pulley is fixedly provided at the ends of the through rod and the socket rod that are away from each other. The drive pulley is connected to the driven pulley through the belt.

[0017] By adopting the above technical solution, the first drive motor is started to drive the through rod and the socket rod to rotate synchronously. The driving pulleys at both ends of the through rod and the socket rod rotate accordingly, driving the driven pulleys on the fixed box and the sliding box respectively through belts, thereby driving the rotating sleeves on both sides to rotate synchronously, in the same direction, and at the same speed. This design ensures that the internal cutting blades at the fixed end and the sliding end have completely consistent rotational motion. Even if the sliding seat moves and changes position, the power transmission is not affected, ensuring the consistency of the cutting conditions on the inner walls of both ends of the pipe fitting.

[0018] Optionally, the inner cutting blade group includes multiple sets of fine cutting blades and multiple sets of rough cutting blades, and the outer cutting blade group includes multiple sets of fine cutting blades and multiple sets of rough cutting blades.

[0019] By adopting the above technical solution, the combination design of multiple sets of roughing and finishing cutters can not only improve the material removal rate in a single clamping, but also effectively ensure the final machining accuracy and surface quality, and extend the service life of the finishing cutter.

[0020] This application also includes a cutting operation method for machining metal castings, comprising the following steps: S1: Place the metal pipe to be processed between the first electric chuck and the second electric chuck, start the third drive motor, the third drive motor drives the lead screw to rotate, so that the sliding box, the second electric chuck and the clamped pipe move together along the slide rail towards the fixed box. After moving to the appropriate position, start the first electric chuck and the second electric chuck to clamp the two ends of the pipe. S2: Start the first drive motor to drive the inner and outer cutting knife groups on the fixed box and the sliding box to rotate at high speed around the pipe axis; S3: Start the second drive motor, which transmits power to the adjustment plate through the connecting rod, causing it to rotate slightly inside the mounting plate. The spiral groove on the adjustment plate drives the adjustment block nested inside to move, thereby pushing all the moving blocks and their cutters to move synchronously along the radial direction of the mounting plate, accurately setting the cutting depth of the inner and outer cutter groups. S4: After the pipe is cut, turn off the first drive motor, control the first electric chuck and the second electric chuck to release the processed pipe, start the third drive motor in reverse to move the first electric chuck and the second electric chuck away from each other to remove the workpiece, and then start the second drive motor in reverse to reset the inner and outer cutting knife groups.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The tubular metal casting is first placed on the first and second electric chucks. The drive assembly moves the sliding seat along the slide rail to adjust the distance between the first and second electric chucks for centering and clamping, accommodating tubular castings of different lengths. After adjustment, the tubular metal casting is clamped and fixed by the first and second electric chucks. The inner and outer cutting blade groups on the fixed and sliding boxes can simultaneously perform rotary cutting on the inner and outer walls of both ends of the tubular casting under the control of the first and second adjustment mechanisms, and control their radial feed separately, improving processing efficiency while avoiding errors caused by secondary clamping. 2. When it is necessary to adjust the radial position of the inner cutting blade assembly, the second drive motor starts, driving the adjusting disc to rotate relative to the mounting disc via the connecting rod. The rotation of the adjusting disc, through the adjustment structure set on it, converts the rotational motion into linear motion that pushes the inner and outer cutting blade assemblies to slide radially along the mounting disc, thereby achieving precise adjustment of the cutting depth of the inner and outer cutting blade assemblies; 3. The first drive motor is started, causing the through rod and socket rod to rotate synchronously. The driving pulleys at both ends of the through rod and socket rod rotate accordingly, driving the driven pulleys on the fixed box and sliding box respectively through belts, thereby driving the rotating sleeves on both sides to rotate synchronously, in the same direction, and at the same speed. This design ensures that the internal cutting blades at the fixed end and the sliding end have completely consistent rotational motion. Even if the sliding seat moves and changes position, the power transmission is not affected, ensuring the consistency of the cutting conditions on the inner walls of both ends of the pipe fitting. 4. The combination design of multiple sets of roughing and finishing cutters can not only improve the material removal rate in a single clamping, but also effectively ensure the final machining accuracy and surface quality, and extend the service life of the finishing cutter. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 yes Figure 2 Schematic diagram of Part A; Figure 4 yes Figure 1 Partial structural diagram; Figure 5 This is a schematic diagram showing the installation positions of the inner and outer cutting blade assemblies.

[0024] Reference numerals: 1. Mounting platform; 11. Slide rail; 12. Fixed box; 13. Sliding box; 14. First electric chuck; 15. Second electric chuck; 16. Inner cutting blade assembly; 17. Outer cutting blade assembly; 2. First adjusting mechanism; 21. First drive motor; 22. Belt; 23. Driven pulley; 24. Rotating sleeve; 25. Rotating disk; 26. Adjusting assembly; 261. Second drive motor; 262. Connecting rod; 263. Adjusting disk; 264. Mounting disk; 265. Adjusting structure; 2651. Movable block; 2652. Spiral groove; 2653. Adjusting block; 3. Drive assembly; 31. Third drive motor; 32. Lead screw; 33. Sliding block; 4. Through rod; 5. Socket rod; 6. Drive pulley; 7. Sliding seat. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a cutting system and its operation method for machining metal castings, referring to... Figure 1 and Figure 2 A cutting system for machining metal castings includes a mounting table 1, on which a slide rail 11 is bolted. A fixed box 12 is bolted to one end of the slide rail 11. A sliding seat 7 is mounted on one side of the fixed box 12 and slidably mounted on the slide rail 11. A sliding box 13 is bolted to the sliding seat 7. A first electric chuck 14 and a second electric chuck 15 are installed between the fixed box 12 and the sliding box 13. The first electric chuck 14 is fixedly mounted on the slide rail 11, and the second electric chuck 15 is fixedly mounted on the sliding seat 7. The first electric chuck 14 is fixedly installed between the fixed box 12 and the second electric chuck 15. Both the fixed box 12 and the sliding box 13 are equipped with an inner cutting blade group 16 and an outer cutting blade group 17. The inner cutting blade group 16 is used to cut the inner walls of both ends of the pipe fitting, and the outer cutting blade group 17 is used to cut the outer walls of both ends of the pipe fitting simultaneously. The fixed box 12 is equipped with a first adjustment mechanism 2 for rotating the inner cutting blade group 16 and the outer cutting blade group 17 on the fixed box 12 around the axis of the pipe fitting, and for adjusting the radial feed of the inner cutting blade group 16 and the radial feed of the outer cutting blade group 17. The sliding box 13 is equipped with a second adjustment mechanism, which is the same as the first adjustment mechanism 2. The slide rail 11 is equipped with a drive assembly 3 for moving the sliding seat 7.

[0027] The tubular metal casting is first placed on the first electric chuck 14 and the second electric chuck 15. The drive assembly 3 moves the sliding seat 7 along the slide rail 11 to adjust the distance between the first electric chuck 14 and the second electric chuck 15 for centering and clamping to accommodate tubular parts of different lengths. After adjustment, the tubular metal casting is clamped and fixed by the first electric chuck 14 and the second electric chuck 15. The inner cutting blade group 16 and the outer cutting blade group 17 set on the fixed box 12 and the sliding box 13 can simultaneously perform rotary cutting on the inner and outer walls of both ends of the tubular part under the control of the first adjustment mechanism 2 and the second adjustment mechanism, and control their radial feed respectively, which improves processing efficiency and avoids errors caused by secondary clamping.

[0028] Reference Figure 1 and Figure 2The first adjustment mechanism 2 includes a first drive motor 21, a belt 22, a driven pulley 23, a rotating sleeve 24, a rotating disk 25, and an adjustment component 26. The first drive motor 21 is fixedly mounted on the mounting platform 1. The rotating sleeve 24 is rotatably mounted on the fixed box 12. The driven pulley 23 is fixedly sleeved on the outer wall of the rotating sleeve 24. The rotating disk 25 is fixedly mounted on one end of the rotating sleeve 24 near the sliding box 13. The output shaft of the first drive motor 21 is connected to the driven pulley 23 through the belt 22. The adjustment component 26 is mounted on the rotating sleeve 24 and the rotating disk 25 and is used to drive the inner cutting blade group 16 and the outer cutting blade group 17 on the fixed box 12 to rotate around the axis of the pipe fitting, and to adjust the radial feed of the inner cutting blade group 16 and the outer cutting blade group 17.

[0029] The first drive motor 21 starts and drives the driven pulley 23, rotating sleeve 24 and rotating disk 25 to rotate as a whole through belt 22, providing cutting motion around the pipe axis for the inner cutting blade group 16 and the outer cutting blade group 17; at the same time, the adjusting component 26 controls the inner cutting blade group 16 and the outer cutting blade group 17 to move radially while rotating, so as to achieve precise control of the cutting depth, thereby completing the composite motion of rotation and radial feed required for simultaneous cutting of inner and outer walls.

[0030] Reference Figure 2 and Figure 3 The adjustment assembly 26 includes a second drive motor 261, a connecting rod 262, an adjustment disk 263, a mounting disk 264, and an adjustment structure 265. The second drive motor 261 is fixedly installed on the end of the rotating sleeve 24 away from the rotating disk 25. The connecting rod 262 is fixedly installed on the output shaft of the second drive motor 261 and installed inside the rotating sleeve 24. The mounting disk 264 is fixedly installed on the side of the rotating disk 25 away from the second drive motor 261. The adjustment disk 263 is rotatably installed inside the mounting disk 264. The end of the connecting rod 262 away from the second drive motor 261 is fixedly connected to the side of the adjustment disk 263 away from the sliding box 13. The inner cutter group 16 and the outer cutter group 17 are both radially movable on the mounting disk 264. The adjustment structure 265 is installed on the adjustment disk 263 and is used to adjust the radial position of the inner cutter group 16 and the outer cutter group 17.

[0031] When the radial position of the inner cutting blade assembly 16 needs to be adjusted, the second drive motor 261 starts, driving the adjusting disk 263 to rotate relative to the mounting disk 264 via the connecting rod 262. The rotation of the adjusting disk 263 is converted into linear motion by the adjusting structure 265 provided thereon, which pushes the inner cutting blade assembly 16 and the outer cutting blade assembly 17 to slide radially along the mounting disk 264, thereby achieving precise adjustment of the cutting depth of the inner cutting blade assembly 16 and the outer cutting blade assembly 17. In this embodiment, a reducer is installed on the connecting rod 262 to improve the adjustment accuracy of the adjusting disk 263 by the second drive motor 261.

[0032] Reference Figure 3 The adjustment structure 265 includes a movable block 2651, a spiral groove 2652, and an adjustment block 2653. Both the inner cutter group 16 and the outer cutter group 17 include multiple sets of cutters. The movable block 2651 is radially movably disposed on the mounting plate 264. Multiple sets of adjustment blocks 2653 are disposed together with the movable block 2651. The multiple sets of adjustment blocks 2653 are respectively installed on the side of the multiple sets of movable blocks 2651 near the adjustment plate 263. Two sets of spiral grooves 2652 are disposed, and one set of spiral grooves 2652 is disposed inside the other set of spiral grooves 2652. Both sets of spiral grooves 2652 are opened on the side of the adjustment plate 263 near the sliding box 13. The multiple sets of adjustment blocks 2653 connected to the multiple sets of inner cutter groups 16 are slidably disposed in the inner spiral grooves 2652, and the multiple sets of adjustment blocks 2653 connected to the multiple sets of outer cutter groups 17 are slidably disposed in the outer spiral grooves 2652.

[0033] When the second drive motor 261 drives the adjusting disk 263 to rotate, since one end of the adjusting block 2653 is fixed on the movable block 2651 and the other end is slidably installed in the spiral groove 2652 on the end face of the adjusting disk 263, the rotation of the adjusting disk 263 forces the adjusting block 2653 to move along the trajectory of the spiral groove 2652. The radial change of the spiral groove 2652 is transmitted to the movable block 2651 through the adjusting block 2653, driving the movable block 2651 and the cutter mounted on it to move radially along the mounting disk 264, thereby realizing synchronous and equal radial feed or retraction of the inner cutting blade group 16 and the outer cutting blade group 17, thus improving the cutting effect on the pipe fittings.

[0034] Reference Figure 4 The drive assembly 3 includes a third drive motor 31, a lead screw 32, and a sliding block 33. The third drive motor 31 is fixedly mounted on the mounting platform 1, the lead screw 32 is rotatably mounted on the mounting platform 1, and one end is fixedly connected to the output shaft of the third drive motor 31. The sliding block 33 is fixedly mounted on the sliding seat 7, and the sliding block 33 is threadedly connected to the lead screw 32. When the third drive motor 31 is started, it drives the lead screw 32 to rotate. The sliding block 33, which is threadedly connected to the lead screw 32, moves along the axis of the lead screw 32 under the threaded drive. Since the sliding block 33 is fixedly connected to the sliding seat 7, it drives the entire sliding seat 7, the sliding box 13, and the second electric chuck 15 and the second adjustment mechanism, etc., to move along the slide rail 11 closer to or away from the fixed box 12, so as to realize the fitting and clamping of pipes of different lengths, or to realize axial feed movement during the cutting process.

[0035] Reference Figure 4A through rod 4 is provided on the output shaft of the first drive motor 21. A socket rod 5 is provided at the end of the through rod 4 away from the first drive motor 21. The socket rod 5 rotates synchronously with the through rod 4. A connecting plate is provided at the bottom of the sliding seat 7. The socket rod 5 is rotatably mounted on the connecting plate. A drive pulley 6 is fixedly provided at the ends of the through rod 4 and the socket rod 5 that are far apart from each other. The drive pulley 6 is connected to the driven pulley 23 through the belt 22.

[0036] The first drive motor 21 is started, causing the through rod 4 and the socket rod 5 to rotate synchronously. The driving pulleys 6 at both ends of the through rod 4 and the socket rod 5 rotate accordingly, driving the driven pulleys 23 on the fixed box 12 and the sliding box 13 respectively through the belt 22, thereby driving the rotating sleeves 24 on both sides to rotate synchronously, in the same direction, and at the same speed. This design ensures that the internal cutting blade assembly 16 at the fixed end and the sliding end have completely consistent rotational motion. Even if the sliding seat 7 moves and changes position, the power transmission is not affected, ensuring the consistency of the cutting conditions on the inner wall of both ends of the pipe fitting.

[0037] Reference Figure 5 The inner cutting tool group 16 includes multiple sets of finishing cutting tools and multiple sets of roughing cutting tools, while the outer cutting tool group 17 includes multiple sets of finishing cutting tools and multiple sets of roughing cutting tools. The combination design of multiple sets of separate roughing and finishing tools can not only improve the material removal rate in a single clamping, but also effectively ensure the final machining accuracy and surface quality, and extend the service life of the finishing cutting tools.

[0038] This application also discloses a cutting operation method for metal casting processing, including the following steps: S1: Place the metal pipe to be processed between the first electric chuck 14 and the second electric chuck 15, start the third drive motor 31, the third drive motor 31 drives the lead screw 32 to rotate, so that the sliding box 13, the second electric chuck 15 and the clamped pipe move together along the slide rail 11 towards the fixed box 12. After moving to the appropriate position, start the first electric chuck 14 and the second electric chuck 15 to clamp the two ends of the pipe. S2: Start the first drive motor 21 to drive the inner cutting knife group 16 and the outer cutting knife group 17 on the fixed box 12 and the sliding box 13 to rotate at high speed around the pipe axis. S3: Start the second drive motor 261, which transmits power to the adjustment plate 263 through the connecting rod 262, causing it to rotate slightly inside the mounting plate 264. The spiral groove 2652 on the adjustment plate 263 drives the adjustment block 2653 nested therein to move, thereby pushing all the movable blocks 2651 and their cutters to move synchronously along the radial direction of the mounting plate 264, and precisely setting the cutting depth of the inner cutter group 16 and the outer cutter group 17. S4: After the pipe is cut, turn off the first drive motor 21, control the first electric chuck 14 and the second electric chuck 15 to release the processed pipe, start the third drive motor 31 in reverse so that the first electric chuck 14 and the second electric chuck 15 move away from each other to remove the workpiece, and then start the second drive motor 261 in reverse to reset the inner cutting knife group 16 and the outer cutting knife group 17.

[0039] The implementation principle of a cutting system and its operation method for metal casting processing according to the embodiments of this application is as follows: After the workpiece is centered and clamped by the first electric chuck 14 and the second electric chuck 15 driven by the lead screw 32, the first drive motor 21 synchronously drives the rotating sleeve 24 and the rotating disk 25 in the fixed box 12 and the sliding box 13 to rotate through the through rod 4 and the belt 22, driving the inner cutting knife group 16 and the outer cutting knife group 17 on them to perform cutting motion around the workpiece axis. At the same time, the respective second drive motors 261 drive the adjusting disk 263 to rotate, and use the spiral groove 2652 on its end face to push the adjusting block 2653 connected to the inner cutting knife group 16 and the outer cutting knife group 17, thereby controlling the inner cutting knife group 16 and the outer cutting knife group 17 to feed synchronously in the radial direction, so that the inner and outer walls of both ends of the workpiece can be rough and fine milled at the same time in one clamping, ensuring processing efficiency and dimensional accuracy.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cutting system for machining metal castings, comprising a mounting table (1), characterized in that: The mounting platform (1) is provided with a slide rail (11), and a fixed box (12) is provided at one end of the slide rail (11). A sliding seat (7) is provided on one side of the fixed box (12). The sliding seat (7) is slidably disposed on the slide rail (11). A sliding box (13) is fixedly disposed on the sliding seat (7). A first electric chuck (14) and a second electric chuck (15) are disposed between the fixed box (12) and the sliding box (13). The first electric chuck (14) is fixedly disposed on the slide rail (11), and the second electric chuck (15) is fixedly disposed on the sliding seat (7). The first electric chuck (14) is disposed between the fixed box (12) and the second electric chuck (15). The fixed box (12) and the sliding box (13) are respectively disposed on the slide rail (11). 3) Both are equipped with an inner cutting blade group (16) and an outer cutting blade group (17). The inner cutting blade group (16) is used to cut the inner walls of both ends of the pipe fitting, and the outer cutting blade group (17) is used to cut the outer walls of both ends of the pipe fitting simultaneously. The fixed box (12) is equipped with a first adjustment mechanism (2) for rotating the inner cutting blade group (16) and the outer cutting blade group (17) on the fixed box (12) around the axis of the pipe fitting, and adjusting the radial feed of the inner cutting blade group (16) and the radial feed of the outer cutting blade group (17). The sliding box (13) is equipped with a second adjustment mechanism, which is the same as the first adjustment mechanism (2). The slide rail (11) is equipped with a drive assembly (3) for moving the sliding seat (7). The first adjustment mechanism (2) includes a belt (22), a driven pulley (23), a rotating sleeve (24), a rotating disk (25), and an adjustment component (26). The rotating sleeve (24) is rotatably mounted on the fixed box (12). The driven pulley (23) is fixedly mounted on the outer wall of the rotating sleeve (24). The rotating disk (25) is fixedly mounted on one end of the rotating sleeve (24) near the sliding box (13). The adjustment component (26) is mounted on the rotating sleeve (24) and the rotating disk (25) and is used to drive the inner cutting blade group (16) and the outer cutting blade group (17) to rotate around the axis of the pipe fitting, and to adjust the radial feed of the inner cutting blade group (16) and the outer cutting blade group (17). A first drive motor (21) is fixedly installed on the mounting platform (1). A through rod (4) is installed on the output shaft of the first drive motor (21). A socket rod (5) is installed at the end of the through rod (4) away from the first drive motor (21). The socket rod (5) rotates synchronously with the through rod (4). A connecting plate is installed at the bottom of the sliding seat (7). The socket rod (5) is rotatably installed on the connecting plate. A drive pulley (6) is fixedly installed at the ends of the through rod (4) and the socket rod (5) away from each other. The drive pulley (6) is connected to the driven pulley (23) through the belt (22). The inner cutting blade group (16) includes multiple sets of fine cutting blades and multiple sets of rough cutting blades, and the outer cutting blade group (17) includes multiple sets of fine cutting blades and multiple sets of rough cutting blades.

2. The cutting system for metal casting processing according to claim 1, characterized in that: The adjustment assembly (26) includes a second drive motor (261), a connecting rod (262), an adjustment disc (263), a mounting disc (264), and an adjustment structure (265). The second drive motor (261) is fixedly disposed at the end of the rotating sleeve (24) away from the rotating disc (25). The connecting rod (262) is fixedly disposed on the output shaft of the second drive motor (261) and disposed inside the rotating sleeve (24). The mounting disc (264) is fixedly disposed on the rotating disc (25) away from the second drive motor (261). On one side of the mounting plate (264), the adjusting plate (263) is rotatably disposed inside the mounting plate (264). The end of the connecting rod (262) away from the second drive motor (261) is fixedly connected to the side of the adjusting plate (263) away from the sliding box (13). The inner cutting blade group (16) and the outer cutting blade group (17) are both radially movably disposed on the mounting plate (264). The adjusting structure (265) is disposed on the adjusting plate (263) and is used to adjust the radial position of the inner cutting blade group (16) and the outer cutting blade group (17).

3. The cutting system for metal casting processing according to claim 2, characterized in that: The adjustment structure (265) includes a movable block (2651), a spiral groove (2652), and an adjustment locking block (2653). Both the inner cutting blade group (16) and the outer cutting blade group (17) include multiple sets of cutting blades. The movable block (2651) is radially movably mounted on the mounting plate (264). Multiple sets of adjustment locking blocks (2653) are provided with the movable block (2651), and each set is located on the side of the movable block (2651) near the adjustment plate (263). The spiral groove (2652)... 2) Two sets are provided, and one set of the spiral grooves (2652) is located inside the other set of spiral grooves (2652). Both sets of spiral grooves (2652) are opened on the side of the adjusting plate (263) near the sliding box (13). Multiple sets of adjusting blocks (2653) connected to multiple sets of inner cutting blade groups (16) are slidably disposed in the inner spiral grooves (2652), and multiple sets of adjusting blocks (2653) connected to multiple sets of outer cutting blade groups (17) are slidably disposed in the outer spiral grooves (2652).

4. The cutting system for metal casting processing according to claim 1, characterized in that: The drive assembly (3) includes a third drive motor (31), a lead screw (32) and a sliding block (33). The third drive motor (31) is fixedly mounted on the mounting platform (1). The lead screw (32) is rotatably mounted on the mounting platform (1) and one end is fixedly connected to the output shaft of the third drive motor (31). The sliding block (33) is fixedly mounted on the sliding seat (7) and is threadedly connected to the lead screw (32).

5. A cutting operation method for machining metal castings, comprising a cutting system for machining metal castings according to any one of claims 3, characterized in that: Includes the following steps: S1: Place the metal pipe to be processed between the first electric chuck (14) and the second electric chuck (15), start the third drive motor (31), the third drive motor (31) drives the lead screw (32) to rotate, so that the sliding box (13), the second electric chuck (15) and the clamped pipe move together along the slide rail (11) towards the fixed box (12). After moving to the appropriate position, start the first electric chuck (14) and the second electric chuck (15) to clamp the two ends of the pipe. S2: Start the first drive motor (21) to drive the inner cutter group (16) and outer cutter group (17) on the fixed box (12) and the sliding box (13) to rotate at high speed around the pipe axis; S3: Start the second drive motor (261), which transmits power to the adjustment plate (263) through the connecting rod (262), causing it to rotate slightly inside the mounting plate (264). The spiral groove (2652) on the adjustment plate (263) drives the adjustment block (2653) nested therein to move, thereby pushing all the movable blocks (2651) and their cutters to move synchronously along the radial direction of the mounting plate (264), and precisely setting the cutting depth of the inner cutter group (16) and the outer cutter group (17). S4: After the pipe is cut off, turn off the first drive motor (21), control the first electric chuck (14) and the second electric chuck (15) to release the processed pipe, start the third drive motor (31) in reverse so that the first electric chuck (14) and the second electric chuck (15) move away from each other to remove the workpiece, and then start the second drive motor (261) in reverse to reset the inner cutting knife group (16) and the outer cutting knife group (17).

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