Double-spindle three-cutter-tower numerical control machine tool

Abstract

The utility model discloses a double main shaft three knife tower numerical control machine tool, including the machine base that is equipped with three parallel X axle guide rail. Two independent control's knife tower mechanism is equipped on first X axle guide rail, can cooperate or independent operation, the coaxial opposite arrangement of first main shaft mechanism and movable second main shaft mechanism is equipped on second X axle guide rail, realizes workpiece automatic butt joint and shift, third X axle guide rail is equipped with third knife tower mechanism. The machine tool passes through the innovative layout of three knife towers and double main shaft, supports multiple high -efficient processing mode: two knife towers can synchronize and process one end of a workpiece, and third knife tower processes the other end or another workpiece, also can realize workpiece automatic shift to another main shaft after one end processing, and is continued processing the other end by any one or two knife towers. Therefore, on one hand can greatly improve production efficiency and equipment utilization, on the other hand eliminates the manual turn -around clamping link, positioning error and downtime are reduced significantly, is suitable for the high -speed precision machining of complex parts.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a dual-spindle three-turret CNC machine tool. Background Technology

[0002] In the field of CNC machine tool technology, traditional twin-spindle machine tools are typically equipped with a single or symmetrically arranged tool turret, making it difficult to achieve flexible switching of machining modes and efficient production. When machining both ends of a workpiece, existing equipment often requires manual workpiece removal, reversal, and reclamping, which not only increases the labor intensity of operators but also easily introduces clamping errors, affecting the consistency of machining accuracy. Furthermore, it leads to prolonged equipment downtime and limited production efficiency. In addition, common multi-turret layouts lack effective collaborative utilization of spindle resources, failing to dynamically allocate cutting tasks according to machining needs or achieve simultaneous multi-turret machining on a single workpiece, thus limiting the flexibility and high-speed development of machine tools. Therefore, there is an urgent need for a new CNC machine tool structure that can support flexible configuration and collaborative operation of multiple tool turrets, enabling automatic workpiece transfer between spindles and continuous machining at both ends, while also possessing multi-turret parallel cutting capabilities, thereby significantly improving equipment utilization and overall machining efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a dual-spindle, three-turret CNC machine tool that supports multiple high-efficiency machining modes. Two turrets can simultaneously machine one end of a workpiece, while the third turret processes the other end or another workpiece. Alternatively, after machining one end of the workpiece, it can be automatically transferred to the other spindle, where any one or two turrets can continue machining the other end. This greatly improves production efficiency and equipment utilization, eliminates the manual turning and clamping process, significantly reduces positioning errors and downtime, and is suitable for high-speed precision machining of complex parts.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A dual-spindle, three-turret CNC machine tool, including The base has a first X-axis guide rail, a second X-axis guide rail, and a third X-axis guide rail arranged in parallel on its top surface; A first turret mechanism and a second turret mechanism are provided on a first X-axis guide rail. The first turret mechanism includes a first turret assembly for mounting a tool, a first X-axis motion assembly for driving the first turret assembly to move along the first X-axis guide rail, and a first Y-axis motion assembly for driving the first turret assembly to move along the Y-axis. The second turret mechanism includes a second turret assembly for mounting a tool, a second X-axis motion assembly for driving the second turret assembly to move along the first X-axis guide rail, and a second Y-axis motion assembly for driving the second turret assembly to move along the Y-axis. One end of the second X-axis guide rail is fixed with a first spindle mechanism. The second X-axis guide rail is provided with a second spindle mechanism corresponding to the first spindle mechanism. The first spindle mechanism includes a first clamping component for clamping a workpiece and a first spindle box for driving the first clamping component to rotate. The second spindle mechanism includes a second clamping component for clamping a workpiece, a second spindle box for driving the second clamping component to rotate, and a third X-axis motion component for driving the second spindle box to move along the second X-axis guide rail. The third X-axis guide rail is provided with a third turret mechanism, which includes a third turret assembly for mounting tools, a fourth X-axis motion assembly for driving the third turret assembly to move along the third X-axis guide rail, and a third Y-axis motion assembly for driving the third turret assembly to move along the Y-axis.

[0005] A dual-spindle, three-turret CNC machine tool according to an embodiment of this utility model has at least the following beneficial effects: Through the innovative layout of three parallel X-axis guideways, it constructs two independent machining areas and one shared machining area. The movable second spindle mechanism, coaxially arranged on the second X-axis guideway, cooperates with the fixed first spindle mechanism to achieve automatic and precise transfer and seamless docking of the workpiece between the two spindles. This completely eliminates positioning errors and time interruptions caused by manual secondary clamping in traditional machining, ensuring the consistency of accuracy and production continuity of both ends of the workpiece. The core advantage lies in the flexible configuration of the three turrets: the two turrets arranged on the first X-axis guideway can simultaneously perform collaborative composite machining on one end of the workpiece located on the first spindle, greatly shortening the single machining time for that end; while the third turret can independently machine the other end of the workpiece located on the second spindle. This architecture enables the machine tool to operate efficiently in multiple modes, such as "two turrets working together to process one workpiece while a third turret processes another workpiece" or "after one spindle processes one end of the workpiece, it automatically transfers to another spindle to complete the processing of the other end without manual clamping," thereby greatly improving the machine tool's flexible production capabilities, equipment utilization, and overall production efficiency. It is particularly suitable for the large-scale, high-precision, and fully automated production needs of complex parts.

[0006] According to some embodiments of the present invention, the first turret assembly includes a first cutter head and a first Z-axis lifting assembly for driving the first cutter head to rise and fall.

[0007] The advantage is that by adding a first Z-axis lifting component to the first turret assembly, it is given vertical machining capability, enabling it to perform more complex three-dimensional machining processes such as drilling and tapping, which significantly expands the process range and flexibility of the first machining area.

[0008] According to some embodiments of the present invention, the second turret assembly includes a second cutter head and a second Z-axis lifting assembly for driving the second cutter head to rise and fall.

[0009] The advantage is that by adding a second Z-axis lifting component to the second turret assembly, it also has the Z-axis machining freedom, ensuring the matching of process capabilities with the first turret during collaborative machining, and enabling them to jointly complete complex composite machining tasks.

[0010] According to some embodiments of the present invention, the second turret assembly includes a third cutter head and a third Z-axis lifting assembly for driving the third cutter head to rise and fall.

[0011] The advantage is that by adding a third Z-axis lifting component to the third turret assembly, it has complete three-dimensional machining capabilities, ensuring that it can complete all necessary cutting operations when independently machining the other end of the workpiece, thus guaranteeing the integrity and quality of the machining.

[0012] According to some embodiments of the present invention, the first X-axis motion component, the first Y-axis motion component, the second X-axis motion component, the second Y-axis motion component, the third X-axis motion component, the fourth X-axis motion component, and the third Y-axis motion component are all motor lead screw slide mechanisms.

[0013] The advantage is that by concretizing all motion components into a motor-screw-slide mechanism, a high-precision, high-rigidity, and stable and reliable motion realization method is provided for the entire machine tool, ensuring the positioning accuracy and dynamic response performance of all turrets and spindles under long-term operation.

[0014] According to some embodiments of the present invention, the first spindle mechanism further includes a first mounting base for mounting the first clamping component, and the second spindle mechanism further includes a second mounting base for mounting the second clamping component.

[0015] The advantage is that by setting up the first and second mounting bases, a stable and reliable mounting foundation is provided for the clamping components, ensuring the rigidity and stability of the spindle clamping system, thus laying the foundation for high-precision cutting and reliable workpiece transfer.

[0016] According to some embodiments of the present invention, the first clamping component and the second clamping component are chucks or internal support clamps.

[0017] The advantages are: by limiting the clamping components to chucks or internal support fixtures, the processing range of the machine tool is expanded, and it can stably and efficiently clamp blanks of various shapes and sizes, thereby enhancing the versatility and adaptability of the equipment.

[0018] According to some embodiments of the present invention, both the first spindle box and the second spindle box are driven by servo motors.

[0019] The advantages are: by using a servo motor to drive the spindle box, precise and stepless control of the spindle speed and rotation angle is achieved, supporting advanced machining functions such as precision turning, milling, and directional indexing, thereby improving the machine tool's technological level and machining capabilities.

[0020] According to some embodiments of the present invention, the top surface of the base is an inclined surface, and the first X-axis guide rail, the second X-axis guide rail and the third X-axis guide rail are arranged horizontally from top to bottom on the inclined surface.

[0021] The advantages are: by setting the top surface of the machine base as an inclined surface and installing guide rails horizontally, the chips and coolant generated during processing can be automatically slid off by gravity, which effectively avoids accumulation on key moving parts and working areas, ensures a clean processing environment, and facilitates chip removal.

[0022] According to some embodiments of this utility model, drainage grooves are provided on both sides of the base.

[0023] The benefits are that by adding drainage channels on both sides of the inclined base, an effective channel for the recovery and discharge of coolant and chips is created, which can quickly divert waste to the collection system, further optimize the chip removal effect, maintain the cleanliness of the work area and the long-term reliability of the equipment.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 for Figure 1 Enlarged diagram of point C in the middle.

[0027] Reference numerals: Base 100, First X-axis guide rail 110, Second X-axis guide rail 120, Third X-axis guide rail 130, First turret mechanism 140, Second turret mechanism 150, First turret assembly 160, First X-axis motion assembly 170, First Y-axis motion assembly 180, Second turret assembly 190, Second X-axis motion assembly 200, Second Y-axis motion assembly 210, First spindle mechanism 220, Second spindle mechanism 230, First clamping component 240, First spindle box 250, second clamping component 260, second spindle box 270, third X-axis motion assembly 280, third turret mechanism 290, third turret assembly 300, fourth X-axis motion assembly 310, third Y-axis motion assembly 320, first tool head 330, first Z-axis lifting assembly 340, second tool head 350, second Z-axis lifting assembly 360, third tool head 370, third Z-axis lifting assembly 380, first mounting base 390, second mounting base 400, drainage groove 410. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is for reference. Figures 1-4 A dual-spindle, three-turret CNC machine tool is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0033] like Figures 1-4 As shown in the figure, this application proposes a dual-spindle, three-turret CNC machine tool, including a machine base 100, with a first X-axis guide rail 110, a second X-axis guide rail 120, and a third X-axis guide rail 130 arranged in parallel on the top surface; a first turret mechanism 140 and a second turret mechanism 150 are provided on the first X-axis guide rail 110, the first turret mechanism 140 includes a first turret assembly 160 for mounting tools, a first X-axis motion assembly 170 for driving the first turret assembly 160 to move along the first X-axis guide rail 110, and a first Y-axis motion assembly 180 for driving the first turret assembly 160 to move along the Y-axis, the second turret mechanism 150 includes a second turret assembly 190 for mounting tools, a second X-axis motion assembly 200 for driving the second turret assembly 190 to move along the first X-axis guide rail 110, and a second Y-axis motion assembly 210 for driving the second turret assembly 190 to move along the Y-axis; one end of the second X-axis guide rail 120 is fixed A first spindle mechanism 220 is provided, and a second spindle mechanism 230 corresponding to the first spindle mechanism 220 is provided on the second X-axis guide rail 120. The first spindle mechanism 220 includes a first clamping component 240 for clamping the workpiece and a first spindle box 250 for driving the first clamping component 240 to rotate. The second spindle mechanism 230 includes a second clamping component 260 for clamping the workpiece, a second spindle box 270 for driving the second clamping component 260 to rotate, and a third X-axis motion assembly 280 for driving the second spindle box 270 to move along the second X-axis guide rail 120. A third turret mechanism 290 is provided on the third X-axis guide rail 130. The third turret mechanism 290 includes a third turret assembly 300 for mounting the tool, a fourth X-axis motion assembly 310 for driving the third turret assembly 300 to move along the third X-axis guide rail 130, and a third Y-axis motion assembly 320 for driving the third turret assembly 300 to move along the Y-axis.

[0034] Through an innovative layout of three parallel X-axis guideways, two independent machining areas and one shared machining area are constructed. The movable second spindle mechanism 230, coaxially mounted on the second X-axis guideway 120, cooperates with the fixed first spindle mechanism 220 to achieve automatic and precise transfer and seamless docking of the workpiece between the two spindles. This completely eliminates positioning errors and time interruptions caused by manual secondary clamping in traditional machining, ensuring consistent precision and production continuity for both ends of the workpiece. The core advantage lies in the flexible configuration of the three turrets: the two turrets arranged on the first X-axis guideway 110 can simultaneously perform collaborative machining on one end of the workpiece on the first spindle, greatly shortening the single machining time for that end; while the third turret can independently machine the other end of the workpiece on the second spindle. This architecture enables the machine tool to operate efficiently in multiple modes, such as "two turrets working together to process one workpiece while a third turret processes another workpiece" or "after one spindle processes one end of the workpiece, it automatically transfers to another spindle to complete the processing of the other end without manual clamping," thereby greatly improving the machine tool's flexible production capabilities, equipment utilization, and overall production efficiency. It is particularly suitable for the large-scale, high-precision, and fully automated production needs of complex parts.

[0035] Specifically, such as Figures 2-4 As shown, the first turret assembly 160 includes a first tool head 330 and a first Z-axis lifting assembly 340 for driving the first tool head 330 to rise and fall. The second turret assembly 190 includes a second tool head 350 and a second Z-axis lifting assembly 360 for driving the second tool head 350 to rise and fall. The second turret assembly 190 also includes a third tool head 370 and a third Z-axis lifting assembly 380 for driving the third tool head 370 to rise and fall. Specifically, the first tool head 330 refers to a rotary table mounted on the first turret assembly 160 for fixing the cutting tool. It can be implemented using a multi-station turret structure to provide diverse tool selection for different machining processes. The first Z-axis lifting assembly 340 can be understood as a linear motion mechanism, specifically a ball screw drive mechanism or a linear motor drive mechanism, whose purpose is to achieve precise positioning of the cutting tool in the vertical direction. The second tool head 350 has similar structural features to the first tool head 330, but its independently configured second Z-axis lifting assembly 360 allows the two turrets to be asynchronously adjusted in the vertical direction. The third tool head 370 and its matching third Z-axis lifting assembly 380 further expand the machine tool's machining capabilities. This modular design effectively enhances the system's flexibility and adaptability.

[0036] In detail, this solution achieves autonomous vertical adjustment of the tool system by equipping each turret assembly with an independent Z-axis lifting mechanism. The combined design of the first tool head 330 and the first Z-axis lifting assembly 340 allows for precise vertical feed after the tool is positioned in the XY plane. This hierarchical control architecture avoids the inertial interference generated when traditional Z-axis displacement is achieved through spindle box linkage, thereby improving the dynamic response characteristics of the tool path. The configuration of the second tool head 350 and the second Z-axis lifting assembly 360 enables asynchronous vertical adjustment of the two turrets, creating conditions for synchronous turning of composite workpieces with different height characteristics. The introduction of the third tool head 370 and the third Z-axis lifting assembly 380 further expands the spatial freedom of the machine tool in machining complex three-dimensional curved surfaces, allowing the three turrets to independently perform differentiated machining tasks such as deep hole drilling and stepped milling within their respective Z-axis travel ranges. This design, combined with the multi-guide rail layout on the machine base 100, significantly improves the flexibility of the machine tool in multi-process continuous machining and effectively solves the problem of insufficient vertical adjustment capability of the tool. It should be noted that the first cutter head 330, the second cutter head 350 and the third cutter head 370 should be equipped with a motor for changing the cutter and a motor for driving the cutter to rotate.

[0037] This application further proposes that the first X-axis motion assembly 170, the first Y-axis motion assembly 180, the second X-axis motion assembly 200, the second Y-axis motion assembly 210, the third X-axis motion assembly 280, the fourth X-axis motion assembly 310, and the third Y-axis motion assembly 320 are all motor-driven ball screw slide mechanisms. Specifically, the motor-driven ball screw slide mechanism refers to a transmission device that achieves linear motion by driving a ball screw with a servo motor. It can be implemented by using a ball screw pair in conjunction with a linear guide. The ball screw pair consists of a screw and a nut, converting rotational motion into linear motion through rolling elements, featuring high-precision positioning and efficient transmission. The design purpose of this structure is to eliminate the backlash problem existing in traditional hydraulic or pneumatic drive methods, thereby improving the synchronization and stability of the machine tool in multi-axis linkage machining. Through the above technical solution, the problems of insufficient positioning accuracy, dynamic response lag, and machining error accumulation caused by mechanical transmission backlash in the motion components of traditional dual-spindle three-turret machine tools are solved, significantly improving the machining accuracy and operational stability of the equipment.

[0038] like Figure 2 and Figure 3As shown, the first spindle mechanism 220 further includes a first mounting base 390 for mounting the first clamping component 240, and the second spindle mechanism 230 further includes a second mounting base 400 for mounting the second clamping component 260. Specifically, the first mounting base 390 is a structural unit that provides rigid connection and support for the first clamping component 240. It can be made of a high-rigidity alloy material and is fixedly connected to the first spindle box 250 by bolts or pins. The second mounting base 400 has the same technical features, and both ensure the positioning accuracy of the clamping component through standardized reference surfaces. The purpose of adding the mounting base is to improve the connection rigidity between the clamping component and the spindle box, thereby effectively suppressing vibrations that may occur during machining. In detail, the first mounting base 390, as the connection intermediary between the first clamping component 240 and the first spindle box 250, ensures the spatial stability of the clamping component during high-speed rotation through optimized contact surfaces and fastening methods. Similarly, the second mounting base 400 acts on the same principle between the second clamping component 260 and the second spindle box 270. This split-mount structure not only facilitates quick replacement of clamping components but also improves repeatability by using a unified mounting reference. In the dual-spindle system, the two mounting seats work together, significantly enhancing the overall rigidity of the system and resolving workpiece positioning deviations caused by mechanical deformation or assembly errors. Furthermore, this structural design, combined with the guide rail system with its inclined top surface on the machine base 100, further enhances the overall machining performance of the machine tool.

[0039] It should be noted that the first clamping component 240 and the second clamping component 260 are chucks or internal support fixtures. The first clamping component 240 and the second clamping component 260 refer to devices used to fix the workpiece, which can be implemented using radial clamping structures such as three-jaw chucks or four-jaw chucks. Internal support fixtures can achieve internal hole positioning and clamping of the workpiece through expansion mandrels or hydraulic expansion sleeves. The selection of these fixture types aims to improve workpiece clamping efficiency and enhance adaptability to workpieces with different geometric features. Specifically, this solution achieves rapid workpiece positioning and stable clamping by configuring a chuck or internal support fixture in a dual-spindle mechanism. The chuck structure, with its self-centering characteristics, can effectively reduce the accumulation of clamping errors, and is particularly suitable for standardized clamping of shaft-type workpieces; while the internal support fixture achieves reverse clamping through internal hole positioning, which can meet the deformation-free clamping requirements of thin-walled parts or workpieces with irregular cross-sections. This flexible clamping mode selection mechanism allows the spindle mechanism to choose the appropriate clamping type based on the workpiece geometry, shortening workpiece clamping and adjustment time and avoiding the need for secondary positioning due to mismatch between the clamping and workpiece contours. Simultaneously, this design supports continuous dual-end machining on a dual-spindle, three-turret architecture, significantly improving equipment utilization and overall machining efficiency.

[0040] It is worth mentioning that the top surface of the machine base 100 is an inclined surface, with the first X-axis guide rail 110, the second X-axis guide rail 120, and the third X-axis guide rail 130 arranged horizontally from top to bottom on this inclined surface. Specifically, the inclined surface means that the top surface of the machine base 100 is not a horizontal surface in the traditional sense, but a sloping structure with a certain gradient. This can be achieved by machining to form a specific angle of inclination, or by using a segmented stepped design to simulate a continuous inclined surface effect, with the aim of optimizing the internal space layout and improving chip removal performance. The sequential horizontal arrangement of the first X-axis guide rail 110, the second X-axis guide rail 120, and the third X-axis guide rail 130 ensures that each guide rail maintains a horizontal reference on the inclined surface through precision assembly processes, while simultaneously creating a height difference distribution. This design not only guarantees the horizontal movement accuracy of the moving components but also achieves spatial layering. Based on the overall structure of the aforementioned dual-spindle, three-turret CNC machine tool, the inclined surface design not only solves the problems of space utilization and chip removal but also organically complements the multi-turret layout of the machine tool. By using a layered guide rail configuration, each turret mechanism can operate independently on different height planes, ensuring both processing flexibility and improving the overall processing efficiency of the machine tool.

[0041] like Figure 1 As shown, drainage grooves 410 are provided on both sides of the machine base 100. Specifically, the drainage grooves 410 refer to the groove structures formed on both sides of the machine base 100, which can be implemented in various forms such as straight, U-shaped, or V-shaped. In practical applications, the position of the drainage grooves 410 corresponds to the lowest edge of the inclined surface, and its purpose is to guide the coolant or cutting fluid to a specific area through gravity guidance, avoiding liquid accumulation inside the machine base 100. In addition, the symmetrical arrangement of the drainage grooves 410 on both sides ensures the balance of liquid discharge efficiency, while maintaining the overall structural strength of the machine tool. In detail, this solution achieves directional discharge of coolant or cutting fluid by setting drainage grooves 410 on both sides of the machine base 100 and utilizing the gravity guiding characteristics of the inclined surface. The inclined surface design allows the liquid to flow naturally to the bottom sides of the machine base 100, while the drainage grooves 410 form a continuous guiding path, transforming the originally disordered liquid flow into an orderly unidirectional discharge. This structure not only effectively solves the safety hazards caused by liquid residue, but also significantly improves the cleanliness of the processing environment and the reliability of equipment operation. Meanwhile, considering the layout of the three sets of X-axis guideways, the design of the inclined surface and drainage groove 410 optimizes the utilization of geometric space, further enhancing the overall performance of the machine tool. Through the above technical solutions, the accumulation of coolant or cutting fluid at the bottom of the machine base 100 is avoided, while ensuring efficient and balanced fluid drainage, thus providing a reliable guarantee for the long-term stable operation of the equipment.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dual-spindle three-tool turret CNC machine, characterized by, include: The base (100) has a first X-axis guide rail (110), a second X-axis guide rail (120) and a third X-axis guide rail (130) arranged in parallel on its top surface. The first X-axis guide rail (110) is provided with a first turret mechanism (140) and a second turret mechanism (150). The first turret mechanism (140) includes a first turret assembly (160) for mounting a tool, a first X-axis motion assembly (170) for driving the first turret assembly (160) to move along the first X-axis guide rail (110), and a first Y-axis motion assembly (180) for driving the first turret assembly (160) to move along the Y-axis. The second turret mechanism (150) includes a second turret assembly (190) for mounting a tool, a second X-axis motion assembly (200) for driving the second turret assembly (190) to move along the first X-axis guide rail (110), and a second Y-axis motion assembly (210) for driving the second turret assembly (190) to move along the Y-axis. One end of the second X-axis guide rail (120) is fixed with a first spindle mechanism (220). The second X-axis guide rail (120) is provided with a second spindle mechanism (230) corresponding to the first spindle mechanism (220). The first spindle mechanism (220) includes a first clamping component (240) for clamping a workpiece and a first spindle box (250) for driving the first clamping component (240) to rotate. The second spindle mechanism (230) includes a second clamping component (260) for clamping a workpiece, a second spindle box (270) for driving the second clamping component (260) to rotate, and a third X-axis motion assembly (280) for driving the second spindle box (270) to move along the second X-axis guide rail (120). The third X-axis guide rail (130) is provided with a third turret mechanism (290), which includes a third turret assembly (300) for mounting tools, a fourth X-axis motion assembly (310) for driving the third turret assembly (300) to move along the third X-axis guide rail (130), and a third Y-axis motion assembly (320) for driving the third turret assembly (300) to move along the Y-axis.

2. A dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, The first turret assembly (160) includes a first cutter head (330) and a first Z-axis lifting assembly (340) for driving the first cutter head (330) to rise and fall.

3. The dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, The second turret assembly (190) includes a second cutter head (350) and a second Z-axis lifting assembly (360) for driving the second cutter head (350) to rise and fall.

4. The dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, The second turret assembly (190) includes a third cutter head (370) and a third Z-axis lifting assembly (380) for driving the third cutter head (370) to rise and fall.

5. The dual-spindle three-turret CNC machine tool of claim 1, wherein, The first X-axis motion assembly (170), the first Y-axis motion assembly (180), the second X-axis motion assembly (200), the second Y-axis motion assembly (210), the third X-axis motion assembly (280), the fourth X-axis motion assembly (310), and the third Y-axis motion assembly (320) are all motor lead screw slide mechanisms.

6. A dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, The first spindle mechanism (220) further includes a first mounting base (390) for mounting the first clamping member (240), and the second spindle mechanism (230) further includes a second mounting base (400) for mounting the second clamping member (260).

7. A dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, The first clamping component (240) and the second clamping component (260) are chucks or internal support clamps.

8. A dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, Both the first spindle box (250) and the second spindle box (270) are driven by servo motors.

9. A dual-spindle three-turret CNC machine tool according to claim 1, characterized in that, The top surface of the base (100) is an inclined surface, and the first X-axis guide rail (110), the second X-axis guide rail (120) and the third X-axis guide rail (130) are arranged horizontally from top to bottom on the inclined surface.

10. A dual-spindle three-tool turret CNC machine according to claim 9, characterized in that, The base (100) is provided with drainage grooves (410) on both sides.

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