Turning and milling combined type numerical control machine tool

Abstract

The invention discloses a turning and milling combined type numerical control machine tool, relates to the technical field of numerical control machine tools, and aims at solving the problems that an existing turning and milling combined machine tool is tedious in clamp replacement, low in clamping precision, poor in tool replacement efficiency and insufficient in machining flexibility. The machine tool comprises a machine tool box body, a rotating base and a tool bin, a rotating disc is driven by a high-speed motor in the rotating base, and a workpiece is rapidly and accurately clamped in cooperation with a sliding block adjusting structure of a clamp adapting base; the tool bin is of a magnetic attraction type tool frame and isolation box linkage structure, and efficient tool changing is achieved. And meanwhile, flexible switching of turning and milling procedures is achieved through driving of a rotating motor, a conversion motor and a hydraulic cylinder. The device is compact in structure, high in clamping and tool changing efficiency, high in machining precision and flexibility and suitable for combined machining of complex workpieces.

Description

Technical Field

[0001] This invention belongs to the field of CNC machine tool technology, specifically relating to a composite CNC machine tool that integrates turning and milling functions, and is particularly suitable for precision parts production scenarios that require multi-process continuous machining. Background Technology

[0002] Milling-turning composite CNC machine tools are widely used in the machinery manufacturing field because they can simultaneously complete multiple processes such as turning and milling, reducing the number of workpiece clamping operations and improving machining efficiency and accuracy. However, existing milling-turning composite machine tools have the following shortcomings: poor fixture adaptability: traditional fixture holders require the entire fixture holder to be removed and replaced when changing to different fixtures, resulting in high production costs; complex tool changing mechanisms: existing tool changing mechanisms mostly use robotic arms for gripping, resulting in a large tool magazine structure, long tool changing paths, and low tool changing efficiency and stability; poor flexibility of rotary base adjustment: during workpiece machining, the rotary base can mostly only rotate in one direction, making it difficult to adapt to the different angle requirements of turning and milling processes, leading to long adjustment times when switching processes. To address these problems...

[0003] Therefore, there is an urgent need to design a milling-turning composite CNC machine tool with quick clamping, efficient tool changing and flexible adjustment functions to improve machining efficiency and accuracy. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0005] A turning and milling composite CNC machine tool includes a machine tool housing, a rotating base, and a tool magazine. A high-speed motor is fixedly installed inside the rotating base. A rotary disk is fixedly installed on the drive shaft at the upper end of the high-speed motor. A mounting groove is formed on the upper surface of the rotary disk. A fixture adapter is fixedly installed in the mounting groove by fixing bolts. A slider groove is formed inside the fixture adapter. A slider is slidably installed inside the slider groove. A pin hole is formed at the upper end of the slider. A rotating ring is movably sleeved around the fixture adapter. A toothed groove is formed at the lower inner end of the rotating ring.

[0006] In a preferred embodiment of the present invention, the lower end of the slider is provided with a threaded hole, and a threaded rod is threadedly sleeved inside the threaded hole. One inner end of the threaded rod is movably connected between the clamping adapter seat and the outer end of the threaded rod is fixedly installed with a gear, which corresponds to and meshes with the tooth groove.

[0007] In a preferred embodiment of the present invention, a clamp seat is fixedly installed on the upper end of the clamp adapter seat by a fixing bolt. A clamp slide groove is provided on the seat body of the clamp seat, and a pin slide groove is provided on the lower end of the clamp seat. A clamp is movably installed inside the clamp slide groove. A pin is fixedly connected to the lower end of the clamp. The pin corresponds to and is inserted into the pin hole at the upper end of the slider. The pin corresponds to and is slidably sleeved with the pin slide groove.

[0008] In a preferred embodiment of the present invention, a rotary motor is fixedly installed on both sides of the interior of the rotating base, and a rod hole is opened at the lower end of the rotating base. A Z-shaped frame is installed on the drive shaft at one end of the outer side of the rotary motor. A motor compartment is provided on the outer side of the upper end of the Z-shaped frame. A conversion motor is fixedly installed inside the motor compartment. The drive shaft at one end of the inner side of the conversion motor is installed on the upper end of the Z-shaped frame.

[0009] In a preferred embodiment of the present invention, the tool magazine has several radially arranged storage slots on its inner periphery. Each storage slot is fitted with a tool holder. A tool head is installed at one outer end of the tool holder, and an iron block is installed at one inner end of the tool holder.

[0010] In a preferred embodiment of the present invention, an annular groove is provided at the center of the tool magazine, and an isolation box is movably installed inside the annular groove. An opening is provided on the side of the isolation box, and a second hydraulic cylinder is installed inside the isolation box. An iron block is fixedly connected to the end of the telescopic rod of the second hydraulic cylinder. The iron block corresponds to the opening on the side of the isolation box and corresponds to a magnet at one end of the inner side of the tool holder. The outer side of the isolation box is made of magnetically attractive metal material.

[0011] In a preferred embodiment of the present invention, a tool changer motor is provided at the lower end of the tool magazine. The drive shaft at the upper end of the tool changer motor corresponds to the center position of the lower end of the tool magazine and is fixedly connected thereto. A fork is fixedly installed on the side of the tool changer motor. The fork is a C-shaped support frame. The upper end of the fork corresponds to the isolation box and is fixedly connected thereto. A turning CNC component is installed at the upper end of the fork. The upper end of the turning CNC component is fixedly connected to the machine tool housing.

[0012] In a preferred embodiment of the present invention, a support frame is fixedly connected to the outer side of the motor compartment. The two ends of the support frame are fixedly connected to the machine tool housing. A receiving groove is opened inside one side of the machine tool housing. A push-pull plate is movably installed inside the receiving groove. A first hydraulic cylinder is fixedly connected to the center of the outer side of the push-pull plate. The cylinder body of the first hydraulic cylinder is fixedly connected to the inside of the machine tool housing. A telescopic rod is fixedly connected to the outer periphery of the inner side of the push-pull plate. A sleeve is movably sleeved on the outer periphery of the telescopic rod. The sleeve is fixed on the inner shell of the machine tool housing. The telescopic rod corresponds to the rod hole and is movably sleeved with it.

[0013] In a preferred embodiment of the present invention, a milling CNC assembly is fixedly installed inside the upper end of the machine tool housing at a position corresponding to the upper end of the fixture seat, and a telescopic milling cutter is installed at the lower end of the milling CNC assembly.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. High adaptability of fixtures: The sliding block is driven by the rotating ring, gear and threaded rod to quickly clamp the workpiece. The cooperation between the pin and the pin hole and the pin rod slide groove ensures accurate positioning. Fixture replacement only requires disassembling the fixing bolts, which greatly shortens the clamping and replacement time. It can be adapted to a variety of different specifications of fixtures.

[0016] 2. High tool changing efficiency: It adopts a magnetic tool holder and isolation box linkage structure, which shortens the tool changing path and prevents vibration from affecting the tool changing time.

[0017] 3. High processing flexibility: The rotary motor and the conversion motor work together to drive the rotating base to adjust to multiple angles. The first hydraulic cylinder, combined with the telescopic rod, fixes the rotating base in a vertical state, improving turning stability. At the same time, it can flexibly adapt to different position and angle requirements of turning and milling processes, reducing process changeover time.

[0018] 4. Compact structure and easy maintenance: Each component adopts a modular design, which makes disassembly and maintenance convenient and reduces the later operation and maintenance costs.

[0019] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram illustrating the overall effect of a turning and milling composite CNC machine tool.

[0022] Figure 2 A schematic cross-sectional view of the stabilization mechanism of a turning and milling composite CNC machine tool;

[0023] Figure 3This is a schematic diagram illustrating the milling and drilling modes of a milling and turning composite CNC machine tool.

[0024] Figure 4 A schematic diagram illustrating the fixture changing process of a turning and milling composite CNC machine tool;

[0025] Figure 5 A bottom view schematic diagram of the fixture for a turning and milling composite CNC machine tool;

[0026] Figure 6 A schematic diagram of a clamping structure for a lathe-milling composite CNC machine tool;

[0027] Figure 7 A schematic cross-sectional view of the rotating base of a turning and milling composite CNC machine tool;

[0028] Figure 8 A schematic cross-sectional view of the tool magazine of a turning and milling composite CNC machine tool;

[0029] Figure 9 This is a bottom view schematic diagram of the tool magazine of a turning and milling composite CNC machine tool.

[0030] In the diagram: 1. Machine tool housing; 2. Support frame; 3. Milling CNC assembly; 4. Turning CNC assembly; 5. Rotary base; 6. Fixture holder; 7. Tool magazine; 8. Fork; 9. First hydraulic cylinder; 10. Push-pull plate; 11. Telescopic rod; 12. Z-shaped frame; 13. Motor compartment; 14. Telescopic milling cutter; 15. Sleeve; 16. Tool changer motor; 17. Fixture adapter seat; 18. Slider; 19. Fixture groove; 20. Fixture; 21. Pin; 22. Pin groove; 23. Rotary ring; 24. Slider groove; 25. Threaded rod; 26. Gear; 27. Tooth groove; 28. Rotary disk; 29. ​​Rotary motor; 30. High-speed motor; 31. Rod hole; 32. Conversion motor; 33. Storage slot; 34. Second hydraulic cylinder; 35. Iron block; 36. Tool holder; 37. Isolation box. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0032] like Figures 1 to 9As shown, a turning and milling composite CNC machine tool includes a machine tool housing 1, a rotating base 5, and a tool magazine 7. A high-speed motor 30 is fixedly installed inside the rotating base 5. A rotary disk 28 is fixedly installed on the transmission shaft at the upper end of the high-speed motor 30. A mounting groove is formed on the upper surface of the rotary disk 28. A fixture adapter 17 is fixedly installed in the mounting groove by fixing bolts. A slider groove 24 is formed inside the fixture adapter 17. A slider 18 is slidably installed inside the slider groove 24. A pin hole is formed at the upper end of the slider 18. A rotating ring 23 is movably sleeved around the fixture adapter 17. A toothed groove 27 is formed at the lower inner end of the rotating ring 23.

[0033] In this setup, a high-speed motor drives a rotary disk to rotate at high speed via a transmission shaft, providing the rotational power required for turning / milling the workpiece and ensuring stable workpiece speed during machining. The mounting slot of the rotary disk is secured to the fixture adapter seat via fixing bolts, enabling a detachable connection of the adapter seat for easy maintenance or replacement with adapter seats of different specifications. The slider slides within the slider groove, directly driving the fixture to move and providing a linear motion basis for workpiece clamping. The rotating ring is movably sleeved around the fixture adapter seat, and its inner toothed groove meshes with a gear, converting the operator's rotational motion into gear power, which in turn drives the threaded rod to rotate, ultimately achieving synchronous adjustment of the slider. This solves the problems of cumbersome manual adjustment and low clamping efficiency in traditional fixtures, while ensuring consistent movement of multiple sliders and improving clamping accuracy.

[0034] like Figures 1 to 9 As shown, in a specific embodiment, the lower end of the slider 18 is provided with a threaded hole, and a threaded rod 25 is threadedly sleeved inside the threaded hole. One inner end of the threaded rod 25 is movably connected between the clamp adapter seat 17, and a gear 26 is fixedly installed on the outer end of the threaded rod 25. The gear 26 corresponds to the tooth groove 27 and meshes with it.

[0035] In this setup, the threaded hole at the lower end of the slider is threadedly connected to the threaded rod, converting the rotational motion of the threaded rod into the linear motion of the slider. By controlling the number of rotations of the threaded rod, the sliding distance can be precisely adjusted, avoiding uneven force or positional deviation during clamping and significantly improving clamping accuracy. The gear on the outside of the threaded rod meshes with the tooth groove of the rotating ring, forming a power transmission chain of "rotating ring → gear → threaded rod → slider". The operator only needs to rotate one rotating ring to simultaneously drive multiple gears (adapted to multi-slider structures), ensuring that all sliders move closer to or further away from the workpiece simultaneously, avoiding clamping misalignment caused by unilateral force on the workpiece, while simplifying the operation steps and shortening the clamping time.

[0036] like Figures 1 to 9As shown, in a specific embodiment, a clamp seat 6 is fixedly installed on the upper end of the clamp adapter seat 17 by fixing bolts. A clamp slide groove 19 is provided on the seat body of the clamp seat 6, and a pin slide groove 22 is provided on the lower end of the clamp seat 6. A clamp 20 is movably installed inside the clamp slide groove 19. A pin 21 is fixedly connected to the lower end of the clamp 20. The pin 21 corresponds to the pin hole at the upper end of the slider 18 and is inserted into it. The pin 21 corresponds to the pin slide groove 22 and is slidably sleeved with it.

[0037] In this setup, the fixture base is connected to the fixture adapter base via fixing bolts. When changing fixtures of different specifications, only the fixing bolts of the fixture base need to be removed, without disassembling the entire fixture adapter base. This significantly reduces the operation steps and time required for fixture replacement, solving the problem of cumbersome overall replacement of traditional fixture bases. The fixture slide groove limits the movement trajectory of the fixture, ensuring that the fixture clamps the workpiece only in the horizontal direction, avoiding vertical offset. The pin at the lower end of the fixture connects both the slider (pin hole insertion) and the fixture base (pin slide groove sliding), realizing the direct transmission of power from the slider to the fixture, and further limiting the movement direction of the fixture through the pin slide groove, forming a dual positioning of slide groove and pin. This effectively avoids shaking or offset during fixture clamping, improving clamping stability. In addition, the pin and the pin hole of the slider can be detachably inserted, facilitating the quick assembly of the fixture and the slider, further improving the efficiency of fixture replacement.

[0038] like Figures 1 to 9 As shown, in a specific embodiment, a rotary motor 29 is fixedly installed on both sides of the interior of the rotary base 5, and a rod hole 31 is opened at the lower end of the rotary base 5. A Z-shaped frame 12 is installed on the drive shaft at one end of the outer side of the rotary motor 29. A motor compartment 13 is provided on the outer side of the upper end of the Z-shaped frame 12. A conversion motor 32 is fixedly installed inside the motor compartment 13. The drive shaft at one end of the inner side of the conversion motor 32 is installed at the upper end of the Z-shaped frame 12.

[0039] In this setup, a rotary motor drives the Z-shaped frame to rotate around a horizontal axis, which can adjust the horizontal angle of the rotating base and the workpiece (such as angle adaptation when milling inclined holes), meeting the multi-angle milling needs of complex workpieces; a conversion motor drives the Z-shaped frame to rotate around a vertical axis, which can adjust the angle of the rotating base around the vertical axis (such as switching from the horizontal direction of turning to the vertical direction of milling), solving the problem that traditional rotating bases can only rotate in one direction and lack flexibility in process switching; the motor housing encloses and protects the conversion motor, preventing metal chips and cutting fluid generated during processing from entering the motor's interior, thus extending the motor's service life; the rod hole at the lower end of the rotating base is used for inserting a telescopic rod. When the rotating base is adjusted to the target angle (such as the vertical stable state during turning), inserting the telescopic rod into the rod hole can fix the base position, preventing the base from shaking due to the high-speed rotation of the workpiece during processing, significantly improving processing stability and accuracy.

[0040] like Figures 1 to 9As shown, in a specific embodiment, the tool magazine 7 has several radially arranged storage slots 33 on its inner periphery. Each storage slot 33 is movably fitted with a tool holder 36. A tool head is installed at one outer end of the tool holder 36, and an iron block 35 is installed at one inner end of the tool holder 36.

[0041] In this setup, the radially arranged storage slots can compactly accommodate multiple tool holders. Compared to the dispersed layout of traditional robotic arm-type tool magazines, this significantly reduces the overall volume of the tool magazine, achieving a more compact equipment structure. The tool holders are movably fitted into the storage slots, facilitating tool storage and retrieval while limiting the tool holders' movement direction (moving only radially along the storage slots), preventing tool wobbling. The iron blocks inside the tool holders and the magnets in the isolation box form a magnetic attraction, replacing the cumbersome grasping, moving, installing, and fixing process of traditional robotic arms. The tool holders can be quickly positioned using magnetic attraction, laying the foundation for efficient tool changing later. Different tool holders can accommodate different types of cutting heads, such as turning tools and milling tools, meeting the tooling needs of multiple turning and milling processes and enhancing the equipment's processing versatility.

[0042] like Figures 1 to 9 As shown, in a specific embodiment, an annular groove is provided at the center of the tool magazine 7, and an isolation box 37 is movably installed inside the annular groove. An opening is provided on the side of the isolation box 37, and a second hydraulic cylinder 34 is installed inside the isolation box 37. An iron block 35 is fixedly connected to the end of the telescopic rod of the second hydraulic cylinder 34. The iron block 35 corresponds to the opening on the side of the isolation box 37 and corresponds to the magnet at one end of the inner side of the tool holder 36. The outer side of the isolation box 37 is made of magnetically attractive metal material.

[0043] In this setup, the opening of the isolation box is used to precisely align with the target tool holder, ensuring that the tool holder can move in and out along the opening during tool changes, avoiding misalignment. The second hydraulic cylinder drives the iron block to extend and retract. When the iron block extends, it magnetically attracts the tool holder and pulls it into the isolation box to complete "tool retrieval." When the iron block retracts, it pushes the tool holder back to the storage slot to complete "tool placement." The entire process eliminates the need for long-path movement of the robotic arm, significantly shortening tool change time and solving the problem of low efficiency in traditional tool changes. The iron block and the tool holder's magnets work together to grip the tool holder with stable magnetic attraction, preventing the tool from falling off or shifting during tool changes and improving tool change stability. The magnetically attracted metal material of the isolation box can attract the tool holder in the storage slot when not changing tools, preventing the tool holder from shaking in the storage slot during equipment operation, ensuring accurate tool positioning, and providing assurance for tool positioning during machining.

[0044] like Figures 1 to 9As shown, in a specific embodiment, a tool changer motor 16 is provided at the lower end of the tool magazine 7. The drive shaft at the upper end of the tool changer motor 16 corresponds to the center position at the lower end of the tool magazine 7 and is fixedly connected to it. A fork 8 is fixedly installed on the side of the tool changer motor 16. The fork 8 is a C-shaped support frame. The upper end of the fork 8 corresponds to the isolation box 37 and is fixedly connected to it. A turning CNC component 4 is installed at the upper end of the fork 8. The upper end of the turning CNC component 4 is fixedly connected to the machine tool housing 1.

[0045] In this setup, the tool changer motor drives the tool magazine to rotate, quickly moving the target tool holder to the opening of the isolation box for precise tool positioning. Compared to the traditional "search-by-search" mode of robotic arms, this significantly improves positioning efficiency. The fork has a C-shaped structure, with the isolation box fixed at the upper end and the tool changer motor fixed at the lower end. This ensures the isolation box remains stationary while the tool magazine rotates, preventing tool misalignment caused by the isolation box rotating with the tool magazine, and providing stable support for both the tool magazine and the isolation box. The fork connects to the turning CNC assembly, which can precisely control the horizontal or vertical position of the fork according to machining requirements, moving the tool magazine and tool head to the workpiece machining position. This ensures accurate distance and angle between the tool head and the workpiece during turning. The turning CNC assembly is fixed to the machine tool housing, providing rigid support for the fork and tool magazine, preventing tool head displacement due to vibration during turning, and improving turning accuracy.

[0046] like Figures 1 to 9 As shown, in a specific embodiment, a support frame 2 is fixedly connected to the outer side of the motor compartment 13. The two ends of the support frame 2 are fixedly connected to the machine tool housing 1. A receiving groove is opened inside one side of the machine tool housing 1. A push-pull plate 10 is movably installed inside the receiving groove. A first hydraulic cylinder 9 is fixedly connected to the center of the outer side of the push-pull plate 10. The cylinder body of the first hydraulic cylinder 9 is fixedly connected to the inside of the machine tool housing 1. A telescopic rod 11 is fixedly connected to the outer periphery of the inner side of the push-pull plate 10. A sleeve 15 is movably sleeved on the outer periphery of the telescopic rod 11. The sleeve 15 is fixed on the inner shell of the machine tool housing 1. The telescopic rod 11 corresponds to the rod hole 31 and is movably sleeved with it.

[0047] In this setup, the support frame secures the machine tool housing and motor compartment at both ends, providing rigid support for components such as the Z-frame, rotary motor, and conversion motor. This prevents these components from shifting due to vibration during machining and ensures precise angle adjustment of the rotating base. The first hydraulic cylinder drives the push-pull plate to move horizontally, which in turn drives the telescopic rod to extend and retract synchronously, providing power for the movement of the telescopic rod. The sleeve wraps around and limits the direction of movement of the telescopic rod, ensuring that the telescopic rod moves only horizontally and is precisely inserted into the rod hole of the rotating base, avoiding fixation failure caused by telescopic rod misalignment. After the telescopic rod is inserted into the rod hole, it can firmly fix the rotating base at the target angle (such as the vertical state during turning), preventing the base from shaking when the workpiece rotates at high speed. At the same time, it works with the rotary motor and conversion motor to achieve closed-loop control of adjustment and fixation, improving the stability of the equipment during machining. The push-pull plate synchronously drives multiple telescopic rods (adapted to multi-rod hole structures), ensuring that all telescopic rods are inserted or pulled out at the same time, avoiding deformation or misalignment caused by uneven force on one side of the base.

[0048] like Figures 1 to 9 As shown, in a specific embodiment, a milling CNC assembly 3 is fixedly installed inside the upper end of the machine tool housing 1 at a position corresponding to the upper end of the fixture seat 6, and a telescopic milling cutter 14 is installed at the lower end of the milling CNC assembly 3.

[0049] In this setup, the milling CNC component is fixed to the upper part of the machine tool housing. It can precisely control the speed, feed rate, and movement trajectory of the telescopic milling cutter according to the processing requirements, meeting the milling accuracy requirements of complex workpieces (such as milling grooves, holes, curved surfaces, etc.). The telescopic milling cutter can extend and retract vertically. During processing, the cutter moves down to the workpiece surface for milling, and moves up to reset after processing, avoiding collisions between the cutter and the workpiece or fixture. It can also adapt to the milling requirements of workpieces of different thicknesses (by adjusting the extension length of the cutter). The milling CNC component works in conjunction with the angle adjustment function of the rotating base to realize milling processing of workpieces at different horizontal or vertical angles (such as oblique groove milling, multi-angle drilling), solving the problems of single milling angle and insufficient processing flexibility of traditional equipment, and further expanding the processing range of the equipment.

[0050] The implementation principle of a turning and milling composite CNC machine tool in this embodiment is as follows:

[0051] When using this device:

[0052] Workpiece clamping: Place the workpiece on the fixture seat 6, rotate the rotating ring 23, drive the gear 26 to rotate through the tooth groove 27, causing the threaded rod 25 to rotate, driving the slider 18 to move along the slider groove 24, and then drive the fixture 20 to clamp the workpiece through the pin 21; if the fixture 20 needs to be replaced, remove the fixing bolts of the fixture seat 6 and the fixture adapter seat 17, and replace the corresponding fixture seat 6.

[0053] Processing procedure switching: During processing, the high-speed motor 30 drives the rotary table 28 to rotate the workpiece. If milling is performed, the milling CNC component 3 controls the telescopic milling cutter 14 to move down and start milling. If turning is performed, the turning CNC component 4 is started. At the same time, the rotary motor 29 drives the Z-shaped frame 12 to adjust the horizontal angle of the rotating base 5, and the conversion motor 32 drives the Z-shaped frame 12 to adjust the vertical angle of the rotating base 5. The first hydraulic cylinder 9 drives the push-pull plate 10 and the telescopic rod 11 to fix the rotating base 5 in a vertical state, ensuring accurate and stable processing position.

[0054] Tool changing operation: When a tool needs to be changed, the tool changing motor 16 drives the tool magazine 7 to rotate, so that the target tool holder 36 is aligned with the opening of the isolation box 37; the second hydraulic cylinder 34 drives the iron block 35 to extend and retract, adsorbing the tool holder 36 and pulling it into the isolation box 37; the tool changing motor 16 continues to drive the tool magazine 7 to rotate, sending the designated tool holder 36 in the isolation box 37 to the opening position, the second hydraulic cylinder 34 drives the iron block 35 to push and reset, the tool holder 36 extends and enters the working state, and the tool changing is completed.

Claims

1. A turning and milling composite CNC machine tool, comprising a machine tool housing 1, a rotating base (5), and a tool magazine (7), characterized in that: A high-speed motor (30) is fixedly installed inside the rotating base (5). A rotating disk (28) is fixedly installed on the transmission shaft at the upper end of the high-speed motor (30). An installation groove is provided on the upper surface of the rotating disk (28). A clamp adapter seat (17) is fixedly installed in the installation groove by fixing bolts. A slider groove (24) is provided inside the clamp adapter seat (17). A slider (18) is slidably installed inside the slider groove (24). A pin hole is provided at the upper end of the slider (18). A rotating ring (23) is movably sleeved around the clamp adapter seat (17). A toothed groove (27) is provided at the lower inner end of the rotating ring (23).

2. The turning and milling composite CNC machine tool according to claim 1, characterized in that, The lower end of the slider (18) is provided with a threaded hole, and a threaded rod (25) is threaded inside the threaded hole. One end of the threaded rod (25) is movably connected between the clamp adapter seat (17) and the other end of the threaded rod (25) is fixedly installed with a gear (26). The gear (26) corresponds to the tooth groove (27) and meshes with it.

3. A turning and milling composite CNC machine tool according to claim 2, characterized in that, The upper end of the clamp adapter seat (17) is fixedly installed with a clamp seat (6) by a fixing bolt. The clamp seat (6) has a clamp slide groove (19) on its seat body and a pin slide groove (22) at its lower end. A clamp (20) is movably installed inside the clamp slide groove (19). A pin (21) is fixedly connected to the lower end of the clamp (20). The pin (21) corresponds to the pin hole at the upper end of the slider (18) and is inserted into it. The pin (21) corresponds to the pin slide groove (22) and is slidably sleeved with it.

4. The turning and milling composite CNC machine tool according to claim 1, characterized in that, Rotary motors (29) are fixedly installed on both sides of the interior of the rotating base (5), and rod holes (31) are opened at the lower end of the rotating base (5). A Z-shaped frame (12) is installed on the drive shaft at one end of the outer side of the rotary motor (29). A motor compartment (13) is provided on the outer side of the upper end of the Z-shaped frame (12). A conversion motor (32) is fixedly installed inside the motor compartment (13). The drive shaft at one end of the inner side of the conversion motor (32) is installed on the upper end of the Z-shaped frame (12).

5. A turning and milling composite CNC machine tool according to claim 1, characterized in that, The tool magazine (7) has several radially arranged storage slots (33) on its inner periphery. Each storage slot (33) is fitted with a tool holder (36). A tool head is installed on one outer end of the tool holder (36), and an iron block (35) is installed on one inner end of the tool holder (36).

6. A turning and milling composite CNC machine tool according to claim 5, characterized in that, The tool magazine (7) has an annular groove at its center. An isolation box (37) is movably installed inside the annular groove. An opening is provided on the side of the isolation box (37). A second hydraulic cylinder (34) is installed inside the isolation box (37). An iron block (35) is fixedly connected to the end of the telescopic rod of the second hydraulic cylinder (34). The iron block (35) corresponds to the opening on the side of the isolation box (37). The iron block (35) corresponds to the magnet at one end of the inner side of the tool holder (36). The outer side of the isolation box (37) is made of magnetically attracted metal.

7. A turning and milling composite CNC machine tool according to claim 6, characterized in that, A tool changer motor (16) is provided at the lower end of the tool magazine (7). The transmission shaft at the upper end of the tool changer motor (16) corresponds to the center position at the lower end of the tool magazine (7) and is fixedly connected to it. A fork (8) is fixedly installed on the side of the tool changer motor (16). The fork (8) is a C-shaped support frame. The upper end of the fork (8) corresponds to the isolation box (37) and is fixedly connected to it. A turning CNC component (4) is installed at the upper end of the fork (8). The upper end of the turning CNC component (4) is fixedly connected to the machine tool housing (1).

8. A turning and milling composite CNC machine tool according to claim 4, characterized in that, A support frame (2) is fixedly connected to the outside of the motor compartment (13). Both ends of the support frame (2) are fixedly connected to the machine tool housing (1). A receiving groove is opened inside one side of the machine tool housing (1). A push-pull plate (10) is movably installed inside the receiving groove. A first hydraulic cylinder (9) is fixedly connected to the center of the outer side of the push-pull plate (10). The cylinder body of the first hydraulic cylinder (9) is fixedly connected to the inside of the machine tool housing (1). A telescopic rod (11) is fixedly connected to the outer periphery of the inner side of the push-pull plate (10). A sleeve (15) is movably sleeved on the outer periphery of the telescopic rod (11). The sleeve (15) is fixed on the inner shell of the machine tool housing (1). The telescopic rod (11) corresponds to the rod hole (31) and is movably sleeved with it.

9. A turning and milling composite CNC machine tool according to claim 8, characterized in that, A milling CNC assembly (3) is fixedly installed inside the upper end of the machine tool housing (1) at the position corresponding to the upper end of the fixture seat (6), and a telescopic milling cutter (14) is installed at the lower end of the milling CNC assembly (3).

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