Precise numerical control whirlwind milling machine tool

Abstract

The present application relates to the technical fields of workpiece milling, in particular to a precision numerical control cyclone milling machine tool, comprising: a rack, first clamping devices and second clamping devices are arranged at both ends of the rack; a transverse frame is arranged on the rack, and a rotary milling structure is arranged on the transverse frame; two groups of sliding structures are arranged on both sides of the rotary milling structure, one end of each sliding structure is provided with a fixed clamping structure, and the other end is provided with a clamping and pulling structure; the clamping and pulling structure comprises: a second end frame connected with the sliding structure, a guide groove is arranged on the second end frame; two groups of abutting clamping sleeve assemblies are arranged in the guide groove; a driving sleeve assembly is arranged on the second end frame and connected with the abutting clamping sleeve assemblies, the driving sleeve assembly can drive the two groups of abutting clamping sleeve assemblies to move along the length direction of the guide groove, and when the abutting clamping sleeve assemblies abut against the workpiece, the abutting clamping sleeve assemblies can exert a force away from the fixed clamping structure on the workpiece to generate a clamping and pulling force on the local area of the workpiece, thereby improving the machining precision.

Description

Technical Field

[0001] This invention relates to the field of workpiece milling technology, specifically to a precision CNC cyclone milling machine. Background Technology

[0002] In precision CNC milling, especially for long shafts and slender rods, the workpiece's own weight causes gravitational deflection along its length, resulting in a slight sag in the machined section. This affects the dimensional accuracy and surface quality of threads or irregular curved surfaces. Current technology typically uses three-jaw chucks at both ends of the machine tool to axially clamp the workpiece, supplemented by a support bracket in the middle to reduce the deflection effect. However, clamping at both ends only provides overall axial tension, offering limited improvement to the gravitational sag in localized machined sections. While a fixed support bracket provides radial support, its position is fixed during milling feed and cannot move with the tool. Once the tool passes the support bracket, the machined area loses support, and the unmachined area still exhibits deflection.

[0003] Furthermore, whirl milling is an intermittent cutting process. The milling cutter periodically impacts the workpiece surface, which easily induces forced vibration and chatter in the workpiece. Especially in sections where the workpiece has low rigidity, the vibration will deteriorate the thread profile accuracy and even produce chatter marks. Using only fixed ends or fixed brackets for support cannot effectively constrain the workpiece near the cutter, resulting in the inability to effectively suppress the dynamic displacement caused by milling impact. In addition, when the auxiliary support device needs to be replaced as the machining position moves, the existing structure often has a brief gap in the support or clamping force during the alternation process. This causes the workpiece to lose local constraint at that moment, resulting in significant fluctuations in machining accuracy at the transition position, making it difficult to meet the process requirements of high-precision continuous milling. Summary of the Invention

[0004] The purpose of this invention is to provide a precision CNC cyclone milling machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: Precision CNC cyclone milling machine tools, including: A frame, wherein a first clamping device and a second clamping device are provided at both ends of the frame for clamping the workpiece; A transverse frame is mounted on the machine frame, and the transverse frame is equipped with a rotary milling structure for machining the workpiece, and the transverse frame can move along the length direction of the workpiece; The sliding structure is provided in two sets and is respectively provided on both sides of the rotary milling structure. One end of the sliding structure is provided with a fixed clamping structure and the other end is provided with a clamping and pulling structure. The clamping structure includes: The second end frame is connected to the sliding structure, and a guide groove is provided on the second end frame; Two sets of clamping kits are provided and disposed within the guide groove; A drive assembly is mounted on the second end frame and connected to the clamping assembly. The drive assembly can drive the two sets of clamping assemblies to move along the length direction of the guide groove. When the clamping assembly abuts against the workpiece, the clamping assembly can apply a force to the workpiece away from the fixed clamping structure.

[0006] As described above, the precision CNC rotary milling machine tool includes a drive device fixedly mounted on the transverse frame and a rotary tool holder rotatably mounted on the transverse frame. The output shaft of the drive device is connected to the rotary tool holder via a toothed belt. The rotating tool holder is equipped with multiple sets of milling cutters arranged at equal intervals around its circumference.

[0007] As described above, the precision CNC cyclone milling machine has multiple sets of cylinders arranged along its length, and a V-shaped seat is connected to the actuating end of each cylinder.

[0008] As described above, the precision CNC cyclone milling machine tool includes a sliding structure comprising a guide frame detachably connected to the transverse frame and a follower frame slidably connected to the guide frame. The follower frame has an inner groove along its length, and a rack plate is provided in the inner groove. The sliding structure also includes a motor fixedly mounted on the guide frame, and a gear is connected to the output shaft of the motor, which meshes with the rack plate.

[0009] As described above, the precision CNC cyclone milling machine tool includes a fixed clamping structure comprising a first end frame detachably mounted on one end of the follower frame and two sets of first electric telescopic rods disposed on the first end frame. The first end frame is provided with a sliding groove, in which a drive unit is slidably mounted. The drive unit is connected to the first electric telescopic rods, and a first clamping member is detachably mounted on the drive unit.

[0010] As described above, the precision CNC cyclone milling machine tool includes two sets of inclined pull grooves symmetrically arranged on the second end frame. The inclined pull grooves include vertical grooves and inclined grooves. When the clamping assembly moves along the inclined groove, the workpiece can be clamped by the clamping assembly and subjected to a force away from the first clamping member.

[0011] As described above, the precision CNC cyclone milling machine tool includes two sets of second electric telescopic rods symmetrically mounted on the second end frame. A lifting frame is connected to the actuating end of the second electric telescopic rod. The lifting frame is provided with a transverse groove along its length direction, and the lifting frame is slidably connected to a guide rod provided on the second end frame. The drive assembly also includes a cam shaft rotatably connected to the clamping assembly, the cam shaft being able to slide within the transverse groove.

[0012] As described above, the precision CNC cyclone milling machine tool includes a follower that is rotatably connected to the cam shaft, and a connecting shaft is provided inside the follower, which is capable of rolling within the guide groove. The clamping assembly also includes an energy storage structure disposed on the follower, and a second clamping member is connected to the energy storage structure.

[0013] Compared with the prior art, the beneficial effects of the present invention are: By using a fixed clamping structure and a clamping-pull structure, the fixed clamping structure first clamps and fixes the slender workpiece locally, and then the clamping-pull structure applies a pulling force away from the fixed clamping structure at the other end of the same section of the workpiece. This axially tensions the workpiece within a local area, ensuring that while the machining area continues to move along the length of the workpiece, the area near the machining area always maintains a short effective length and a stable local axial preload. This effectively eliminates gravity deflection caused by its own weight, ensuring the straightness of the machining section. At the same time, both structures together provide additional radial constraint and axial preload to the workpiece, enhancing its rigidity and stability during milling. This effectively suppresses vibration and jitter caused by milling impact, thereby improving overall machining accuracy.

[0014] By setting two sets of sliding structures, at least one set of fixed clamping structure and clamping and pulling structure can effectively clamp and pull the current machining section throughout the entire process of the rotary milling structure feeding along the length of the workpiece. This completely avoids the problem of the clamping and pulling effect disappearing in the alternating gaps and ensures the continuity of machining accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a precision CNC cyclone milling machine.

[0016] Figure 2 This is a schematic diagram of the rotary milling structure, sliding structure, fixed clamping structure, and clamping and pulling structure in a precision CNC cyclone milling machine.

[0017] Figure 3 This is a schematic diagram of the rotary milling structure in a precision CNC cyclone milling machine.

[0018] Figure 4This is a schematic diagram of the sliding structure, fixed clamping structure, and clamping and pulling structure in a precision CNC cyclone milling machine.

[0019] Figure 5 This is a schematic diagram of the sliding structure in a precision CNC cyclone milling machine.

[0020] Figure 6 This is a schematic diagram of the clamping and pulling structure in a precision CNC cyclone milling machine.

[0021] Figure 7 This is a schematic diagram of the clamping and pulling structure in a precision CNC milling machine from another angle.

[0022] Figure 8 This is an exploded view of the clamping and pulling structure in a precision CNC cyclone milling machine.

[0023] Figure 9 This is a schematic diagram of the guide groove in a precision CNC cyclone milling machine.

[0024] In the diagram: 1. Frame; 2. Cylinder; 3. V-shaped seat; 4. Transverse frame; 5. Rotary tool post; 6. Drive unit; 7. Toothed belt; 8. Guide frame; 9. Follower frame; 901. Rack plate; 10. Motor; 1001. Gear; 11. First end frame; 1101. Slide groove; 12. First electric telescopic rod; 13. Drive unit; 14. First clamping member; 15. Second end frame; 1501. Vertical groove; 1502. Inclined groove; 16. Second electric telescopic rod; 17. Lifting frame; 1701. Horizontal groove; 18. Guide rod; 19. Follower; 1901. Connecting shaft; 1902. Convex shaft; 20. Energy storage structure; 21. Second clamping member. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Please see Figures 1-9 As an embodiment of the present invention, the precision CNC cyclone milling machine tool includes: a frame 1 and a transverse frame 4.

[0027] The frame 1 has a first clamping device 101 and a second clamping device 102 at both ends for clamping the workpiece. Before processing the workpiece, the two ends of the workpiece need to be clamped between the first clamping device 101 and the second clamping device 102 respectively. At this time, the two ends of the workpiece are pulled, so that the workpiece as a whole can be axially tensioned to a certain extent, which eliminates axial clearance and deflection to a certain extent. Specifically, the first clamping device 101 and the second clamping device 102 include a three-jaw chuck structure, and the first clamping device 101 is also equipped with a drive motor. The drive motor can drive the corresponding three-jaw chuck structure to rotate (the second clamping device 102 is in a follow-up rotation state), so that the workpiece rotates. At this time, there is a certain speed ratio between the workpiece and the rotary milling structure, so that the two form a specific relative motion relationship, thereby ensuring the processing accuracy.

[0028] The transverse frame 4 is mounted on the machine frame 1. The transverse frame 4 is equipped with a rotary milling structure for machining the workpiece, and the transverse frame 4 can move along the length direction of the workpiece. The rotary milling structure includes a drive device 6 fixedly mounted on the transverse frame 4 and a rotary tool holder 5 rotatably mounted on the transverse frame 4. The output shaft of the drive device 6 is connected to the rotary tool holder 5 via a toothed belt 7. The rotating tool holder 5 is equipped with multiple sets of milling cutters arranged at equal intervals around its circumference.

[0029] During the milling process, the drive device 6 drives the rotating tool holder 5 to rotate via the toothed belt 7, so that the milling cutters on the rotating tool holder 5 can act on the surface of the workpiece in sequence. In conjunction with the rotation of the workpiece, high-precision machining is achieved. At the same time, during the rotation of the rotating tool holder 5, the transverse frame 4 can feed along the length of the workpiece, so that each milling cutter can act on the workpiece in a spiral manner, thereby milling threads on the workpiece.

[0030] Please see Figure 1 The frame 1 is provided with multiple sets of cylinders 2 at equal intervals along its length, and the actuating end of the cylinder 2 is connected to a V-shaped seat 3.

[0031] In this embodiment, when the two ends of the workpiece are clamped by the first clamping device 101 and the second clamping device 102, although the workpiece is axially tensioned, this form cannot make the workpiece completely straight. That is, the workpiece's gravitational deflection still exists, causing the workpiece to have an arc-shaped structure. At this time, by controlling the action of the cylinder 2, the V-shaped seat 3 can be driven to lift, so that the V-shaped seat 3 supports the workpiece at equal intervals, thereby ensuring the straightness of the workpiece to a certain extent and improving the processing accuracy.

[0032] As the transverse frame 4 moves, the cylinder 2 in the corresponding area will drive the V-shaped seat 3 to move downwards, so as to avoid interference between the transverse frame 4 and the cylinder 2 or the V-shaped seat 3 during the movement.

[0033] Please see Figure 2 , Figures 4-5 The precision CNC cyclone milling machine tool also includes a sliding structure.

[0034] The sliding structure is provided in two sets and is respectively provided on both sides of the rotary milling structure. One end of the sliding structure is provided with a fixed clamping structure and the other end is provided with a clamping and pulling structure. The sliding structure includes a guide frame 8 detachably connected to the transverse frame 4 and a follower frame 9 slidably connected to the guide frame 8. The follower frame 9 is provided with an inner groove along its length direction, and a rack plate 901 is provided in the inner groove. The sliding structure also includes a motor 10 fixedly mounted on the guide frame 8, and a gear 1001 is connected to the output shaft of the motor 10, which meshes with the rack plate 901.

[0035] For one of the sliding structures, a fixed clamping structure is provided at one end and a clamping and pulling structure is provided at the other end. The fixed clamping structure and the clamping and pulling structure can clamp and pull the area where the milling cutter acts on the workpiece, so as to eliminate the workpiece's gravitational deflection by clamping and pulling the workpiece in a local range. At the same time, additional radial constraints and axial preload are applied to the workpiece, which to a certain extent avoids the workpiece being impacted and vibrating during the milling process, thereby improving the machining accuracy.

[0036] Furthermore, in this embodiment, two sets of sliding structures are provided, and each set of sliding structures is provided with a set of fixed clamping structures and clamping and pulling structures. For ease of understanding and description, one set of sliding structures and its corresponding fixed clamping structures and clamping and pulling structures are labeled as the first action component, and the other set is labeled as the second action component. In the initial state, the first action component and the second action component are in a misaligned state. Specifically, the end of the follower frame 9 on the first action component that is close to the fixed clamping structure is in a state close to the rotary milling structure, and the end of the follower frame on the second action component that is away from the fixed clamping structure is in a state away from the rotary milling structure. In the initial state, the fixed clamping structure and clamping and pulling structure on the first action component produce a clamping and pulling effect on the workpiece, and the fixed clamping structure and clamping and pulling structure on the second action component are in a state of separation from the workpiece.

[0037] During the subsequent operation, before the fixed clamping structure and clamping-pull structure on the first action component separate from the workpiece, the fixed clamping structure and clamping-pull structure on the second action component will act on the workpiece. That is, at this time, the fixed clamping structure and clamping-pull structure on both action components will produce a clamping and pulling effect on the workpiece, so that the workpiece can always be clamped and pulled when the two action components are alternating, avoiding the temporary disappearance of the clamping and pulling effect on the workpiece during the alternation process, which would lead to a decrease in the local machining accuracy of the workpiece.

[0038] When the fixed clamping structure and clamping-pull structure on the second action assembly act on the workpiece, the fixed clamping structure and clamping-pull structure on the first action assembly will separate from the workpiece. At the same time, the motor 10 will drive the gear 1001 to rotate, so that under the action of meshing with the rack plate 901, it will drive the follower frame 9 on the first action assembly to move relative to the transverse frame 4 toward the unprocessed end of the workpiece. At this time, the motor 10 on the second action assembly is de-energized, so that under the action of the fixed clamping structure, the follower frame 9 on the second action assembly can remain stationary relative to the workpiece, so that the rotary milling assembly can process the workpiece clamped and pulled by the fixed clamping structure and clamping-pull structure on the second action assembly. When the rotary milling assembly moves to the end of the follower frame 9 on the second action assembly that is close to the fixed clamping structure, the fixed clamping structure and clamping-pull structure on the first action assembly will act again. In the subsequent milling process, the first action assembly and the second action assembly act alternately to achieve continuous clamping and pulling along the length direction of the workpiece, ensuring that the workpiece near the rotary milling assembly is in a greater degree of axial tension, and obtaining additional radial constraint and axial preload to ensure machining accuracy.

[0039] Please see Figure 4 The fixed clamping structure includes a first end frame 11 detachably mounted on one end of the follower frame 9 and two sets of first electric telescopic rods 12 disposed on the first end frame 11. The first end frame 11 is provided with a sliding groove 1101, and a driving part 13 is slidably mounted in the sliding groove 1101. The driving part 13 is connected to the first electric telescopic rods 12, and a first clamping member 14 is detachably mounted on the driving part 13.

[0040] In this embodiment, when it is necessary to clamp a local area of ​​the workpiece, the two sets of first electric telescopic rods 12 will be activated, driving the two sets of driving parts 13 to move closer to each other along the length direction of the slide groove 1101. At this time, the two sets of first clamping members 14 will move closer to each other and, when they come into contact with the workpiece, they will create a hugging effect on the workpiece, thereby fixing the workpiece. Since the first clamping member 14 only moves along the width direction of the follower frame 9, the lateral position between the workpiece and the follower frame 9 is relatively fixed. This ensures that when the subsequent clamping and pulling structure is activated, it can effectively clamp and pull the other end of the workpiece while the local area of ​​the workpiece is fixed, thus eliminating the gravitational deflection of the workpiece.

[0041] Please see Figure 9 The clamping structure includes: a second end frame 15, a clamping assembly, and a drive assembly.

[0042] The second end frame 15 is connected to the follower frame 9. The second end frame 15 is provided with a guide groove. The guide groove includes two sets of inclined pull grooves symmetrically arranged on the second end frame 15. The inclined pull groove includes a vertical groove 1501 and an inclined groove 1502. When the clamping kit moves along the inclined groove 1502, the workpiece can be clamped by the clamping kit and subjected to a force away from the first clamping member 14.

[0043] In this embodiment, when the drive kit drives the clamping kit to move along the vertical groove 1501, the corresponding two sets of clamping kits will move toward the workpiece. When the clamping kit moves along the inclined groove 1502, the clamping kit can generate a force on the workpiece that moves away from the fixed clamping structure after it abuts and hugs the workpiece. At this time, the workpiece between the fixed clamping structure and the clamping kit can be locally pulled, thereby strengthening the axial tension force on the local area of ​​the workpiece. The fixed clamping structure and the clamping structure can provide additional radial constraint and axial preload for this local area of ​​the workpiece, thereby improving the machining accuracy.

[0044] Please see Figures 6-8 The drive assembly is mounted on the second end frame 15 and connected to the clamping assembly. The drive assembly can drive the two sets of clamping assemblies to move along the length direction of the guide groove. When the clamping assembly abuts against the workpiece, the clamping assembly can apply a force to the workpiece away from the fixed clamping structure. The drive kit includes two sets of second electric telescopic rods 16 symmetrically mounted on the second end frame 15. A lifting frame 17 is connected to the actuating end of the second electric telescopic rod 16. The lifting frame 17 is provided with a transverse groove 1701 along its length direction, and the lifting frame 17 is slidably connected to a guide rod 18 provided on the second end frame 15. The drive assembly also includes a convex shaft 1902 rotatably connected to the clamping assembly, the convex shaft 1902 being able to slide within the transverse groove 1701; The clamping assembly is provided in two sets and disposed in the guide groove. The clamping assembly includes a follower 19 rotatably connected to the convex shaft 1902. The follower 19 is provided with a connecting shaft 1901, which can roll in the guide groove. The clamping kit also includes an energy storage structure 20 disposed on the follower 19, and a second clamping member 21 is connected to the energy storage structure 20. A columnar spring is disposed inside the energy storage structure 20, which provides an elastic clamping force for the second clamping member 21 when clamping the workpiece.

[0045] It should be noted that multiple sets of rollers are provided on the inner side of the first clamping member 14 and the second clamping member 21. The central axis of the rollers is parallel to the central axis of the workpiece. When the first clamping member 14 and the second clamping member 21 hold the workpiece, the corresponding rollers abut against the workpiece so as to generate a local clamping force on the workpiece when the workpiece rotates.

[0046] In the initial state, the connecting shaft 1901 is at the end of the vertical groove 1501 away from the inclined groove 1502. At this time, the second clamping member 21 is in a state of separation from the workpiece, while the second clamping member 21 that is engaged with the workpiece at the same time is in a state of misalignment with the second clamping member 21 mentioned above. This ensures that when the two sets of sliding structures move alternately, the corresponding two sets of second clamping members 21 will not interfere with each other. Similarly, the first clamping member 14 is also like this.

[0047] When the second clamping member 21, which is separated from the workpiece, needs to be driven to move toward the workpiece, the second electric telescopic rod 16 is activated, driving the lifting frame 17 to move along the length direction of the guide rod 18. At this time, the convex shaft 1902 is in the transverse groove 1701, so that the lifting frame 17 can drive the follower 19 to move along the vertical groove 1501. When the follower 19 moves to the end of the vertical groove 1501, the second clamping member 21 is in a state of abutting against the workpiece. After that, the lifting frame 17 continues to operate, causing the follower 19 to move along the inclined groove 1502. At this time, the follower 19 makes an inclined movement on the vertical plane, that is, while the follower 19 continues to move toward the workpiece, it moves away from the first clamping member 14. During this process, the cylindrical spring is compressed, and the second clamping member 21 can generate a pulling force on the workpiece away from the first clamping member 14, so that the workpiece between the first clamping member 14 and the second clamping member 21 can be locally axially pulled and obtain radial constraint and axial preload.

[0048] Furthermore, when the follower 19 moves along the inclined groove 1502, the cylindrical spring can be gradually compressed, and the tension force on the workpiece will increase at the same time as the compression. That is, the compression of the cylindrical spring is positively correlated with the tension force. By controlling the displacement stroke of the follower 19 in the inclined groove 1502, the applied preload can be adjusted, so that the clamping structure can adjust the tension according to the actual processing requirements, which enhances the process adaptability. Moreover, the elastic energy storage characteristics of the cylindrical spring make the tension force have a certain degree of flexibility and adaptability. When an instantaneous impact occurs during milling, the spring can absorb the vibration energy through slight compression or rebound, playing a role in buffering and damping, further stabilizing the workpiece state, thereby ensuring the machining accuracy and surface quality throughout the milling process.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Precision CNC whirling milling machine, including: A frame, wherein a first clamping device and a second clamping device are provided at both ends of the frame for clamping the workpiece; A transverse frame is mounted on the machine frame, and the transverse frame is equipped with a rotary milling structure for machining the workpiece, and the transverse frame can move along the length direction of the workpiece; Its characteristic is that it further includes: The sliding structure is provided in two sets and is respectively provided on both sides of the rotary milling structure. One end of the sliding structure is provided with a fixed clamping structure and the other end is provided with a clamping and pulling structure. The clamping structure includes: The second end frame is connected to the sliding structure, and a guide groove is provided on the second end frame; Two sets of clamping kits are provided and disposed within the guide groove; A drive assembly is mounted on the second end frame and connected to the clamping assembly. The drive assembly can drive the two sets of clamping assemblies to move along the length direction of the guide groove. When the clamping assembly abuts against the workpiece, the clamping assembly can apply a force to the workpiece away from the fixed clamping structure.

2. The precision CNC cyclone milling machine tool according to claim 1, characterized in that, The rotary milling structure includes a drive unit fixedly mounted on the transverse frame and a rotary tool holder rotatably mounted on the transverse frame. The output shaft of the drive unit is connected to the rotary tool holder via a toothed belt. The rotating tool holder is equipped with multiple sets of milling cutters arranged at equal intervals around its circumference.

3. The precision CNC cyclone milling machine tool according to claim 1, characterized in that, The frame is provided with multiple sets of cylinders along its length, and the actuating end of each cylinder is connected to a V-shaped seat.

4. The precision CNC cyclone milling machine tool according to claim 1, characterized in that, The sliding structure includes a guide frame detachably connected to the transverse frame and a follower frame slidably connected to the guide frame. The follower frame has an inner groove along its length, and a rack plate is provided in the inner groove. The sliding structure also includes a motor fixedly mounted on the guide frame, and a gear is connected to the output shaft of the motor, which meshes with the rack plate.

5. The precision CNC cyclone milling machine tool according to claim 4, characterized in that, The fixed clamping structure includes a first end frame detachably mounted on one end of the follower frame and two sets of first electric telescopic rods disposed on the first end frame. The first end frame is provided with a sliding groove, and a driving part is slidably mounted in the sliding groove. The driving part is connected to the first electric telescopic rod, and a first clamping member is detachably mounted on the driving part.

6. The precision CNC whirling milling machine tool according to claim 1, characterized in that, The guide groove includes two sets of inclined pull grooves symmetrically arranged on the second end frame. The inclined pull groove includes a vertical groove and an inclined groove. When the clamping assembly moves along the inclined groove, the workpiece can be clamped by the clamping assembly and subjected to a force away from the first clamping member.

7. The precision CNC cyclone milling machine tool according to claim 1, characterized in that, The drive kit includes two sets of second electric telescopic rods symmetrically mounted on the second end frame. A lifting frame is connected to the actuating end of the second electric telescopic rod. The lifting frame is provided with a transverse groove along its length direction, and the lifting frame is slidably connected to a guide rod provided on the second end frame. The drive assembly also includes a cam shaft rotatably connected to the clamping assembly, the cam shaft being able to slide within the transverse groove.

8. The precision CNC cyclone milling machine tool according to claim 7, characterized in that, The clamping assembly includes a follower that is rotatably connected to the convex shaft, and a connecting shaft is provided inside the follower, which is capable of rolling within the guide groove; The clamping assembly also includes an energy storage structure disposed on the follower, and a second clamping member is connected to the energy storage structure.

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