Numerical control five-axis machine tool

Abstract

The utility model discloses a numerical control five-axis processing machine tool, which comprises a machine tool body, a numerical control machine tool, a numerical control machine tool, a numerical control machine tool, a numerical control machine tool, a numerical control machine tool and a numerical control machine tool, the cradle type five-axis rotary table is fixed to the base and located in front of the mounting rack and comprises a machining table, a first driving mechanism and a second driving mechanism. The workpiece machining mechanism comprises a workpiece machining assembly, an X-axis direction moving assembly, a Y-axis direction moving assembly and a vertical moving assembly, and the workpiece machining assembly is located above the machining table; the tool assembly comprises a chain type tool magazine fixed to the side face of the mounting rack and an automatic tool changing mechanism fixed to the chain type tool magazine, and the automatic tool changing mechanism is located between the workpiece machining assembly and the chain type tool magazine; and the base is provided with a residue collecting bin below the cradle type five-axis turntable. Through reasonable layout, the overall size of the machine tool is small, the occupied area of the machine tool is reduced, and the appearance of the machine tool looks more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a numerically controlled five-axis machining machine tool. Background Art

[0002] In the fields of titanium alloy, high temperature alloy and high strength steel, the traditional processing method is adopted. When the tool contacts the workpiece for cutting, there is a force between the tool and the workpiece, which makes the cutting tool and the workpiece produce a slight elastic deformation, affecting the processing accuracy. At the same time, it is difficult to process holes in some special positions, such as the small holes in the engine combustion chamber, using conventional processing methods.

[0003] Five-axis linkage CNC machine tools are high-tech, high-precision machine tools specially used for processing complex curved surfaces. This machine tool system has a significant influence on a country's aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and other industries. Five-axis linkage CNC machine tools generally control the simultaneous movement of three linear coordinate axes and two rotary coordinate axes, so that the tool and workpiece can be cut according to the specified motion trajectory.

[0004] The cradle five-axis is suitable for light parts. The spindle only moves on the linear axis, making the structure simpler and more reliable. The spindle has better rigidity and precision. It is equipped with linear motors and torque motors, which can perform high-speed processing and milling machine composite processing, which is of great significance in the small mold industry. The cradle five-axis machining center can swing the A angle through the turntable A and rotate the C angle around the Z axis through the turntable C on the basis of the translational freedom of the rectangular coordinate system. The zero deviation of the two rotating axes, the vertical intersection of the two rotating axes, and the deviation of the rotation center of the two rotating axes in the Y and Z directions play a vital role in the five-axis linkage processing.

[0005] The existing five-axis machine tool technology has a relatively complicated machine tool structure, occupies a large area, and has a relatively small worktable size. The spindle swing five-axis machine tool has poor spindle rigidity, low processing efficiency, and high production cost.

[0006] At the same time, due to the wide variety of processing technologies, the tools used are of regular length, long or extra-long, light weight, heavy weight or very heavy. The conventional tool magazine signal is single, only recognizes and gives basic signals, and the same action and speed are performed by default when exchanging any type of tool. In order to adapt to individual large and heavy tools, the overall exchange speed is set slower, especially when the tools need to be exchanged frequently, which wastes a lot of time. Utility Model Content

[0007] In order to solve at least one technical problem of the prior art, the utility model provides a CNC five-axis machining machine tool.

[0008] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is: a CNC five-axis machining machine tool, comprising:

[0009] The machine tool body comprises a base and a mounting frame fixed above the base, wherein an electric control cabinet is installed inside the mounting frame;

[0010] A cradle-type five-axis turntable, used to fix the workpiece, is fixed on the base and located in front of the mounting frame, and includes a processing table, a first driving mechanism connected to the processing table and driving the processing table to rotate, and a second driving mechanism connected to the first driving mechanism and driving the first driving mechanism to swing;

[0011] A workpiece processing mechanism, used for processing a workpiece, fixed on the top of the mounting frame, comprising a workpiece processing assembly, an X-axis moving assembly and a Y-axis moving assembly for driving the workpiece processing assembly to move in the horizontal direction, and a vertical moving assembly for driving the workpiece processing assembly to move in the horizontal direction, wherein the workpiece processing assembly is located above the processing table;

[0012] A tool assembly, used for providing different tools for the workpiece processing assembly, comprising a chain tool magazine fixed to the side of the mounting frame and an automatic tool changing mechanism fixed to the chain tool magazine, wherein the automatic tool changing mechanism is located between the workpiece processing assembly and the chain tool magazine;

[0013] The base is provided with a slag collecting bin below the cradle-type five-axis turntable.

[0014] In some embodiments, the Y-axis moving component includes two Y-axis slide rails fixed in parallel on the top of the mounting frame, a Y-axis slide table arranged above the two Y-axis slide rails and slidably connected to the two Y-axis slide rails through blocks, and a Y-axis screw rod fixed on the top of the mounting frame, wherein the Y-axis screw rod is arranged between the two Y-axis slide rails and connected to the Y-axis slide table.

[0015] In some embodiments, the X-axis moving component includes two X-axis slide rails fixed in parallel to the front end surface of the Y-axis slide, an X-axis slide arranged at the front ends of the two X-axis slide rails and slidably connected to the two X-axis slide rails through blocks, and an X-axis screw fixed to the front end surface of the Y-axis slide, and the X-axis screw is arranged between the two X-axis slide rails and connected to the X-axis slide.

[0016] In some embodiments, the vertical moving assembly includes two Z-axis guide rails fixed in parallel to the front end surface of the X-axis slide, a main spindle frame arranged at the front ends of the two Z-axis guide rails and slidably connected to the two Z-axis guide rails through clamps, and a Z-axis screw fixed to the front end surface of the X-axis slide, wherein the Z-axis screw rod is arranged between the two Z-axis guide rails and connected to the main spindle frame.

[0017] In certain embodiments, the workpiece processing assembly includes a servo motor fixed to the spindle frame, a tool spindle driven by the servo motor to perform rotational motion, and a tool mounting seat fixed to the end of the tool spindle;

[0018] The tool on the chain tool magazine is taken out by the automatic tool changing mechanism and installed on the tool mounting seat.

[0019] In some embodiments, the CNC five-axis machining machine further includes a machine tool control system, which is respectively connected to the electric control cabinet, the cradle-type five-axis turntable, the workpiece machining mechanism, the chain tool magazine, and the automatic tool changing mechanism;

[0020] The chain tool magazine and the automatic tool changing mechanism can execute different operating speeds for different tools under the control of the machine tool control system.

[0021] In some embodiments, the chain tool magazine also includes a tool magazine base plate, a driving sprocket and a driven sprocket rotatably arranged on the tool magazine base plate, a chain meshed with the driving sprocket and the driven sprocket, a tool magazine motor fixed on the tool magazine base plate and connected to the driving sprocket, and a plurality of tool sleeves, wherein the plurality of tool sleeves are evenly distributed on the circumferential edge of the tool magazine base plate, a plurality of connecting frames are connected to the sprockets, the tool sleeves are rotatably connected to the connecting frames, and the tool magazine motor is connected to the machine tool control system.

[0022] In some embodiments, the chain tool magazine further comprises a tool magazine housing arranged along the edge of the chain tool magazine and located outside the tool sleeve, and the tool magazine housing is provided with a notch at the tool taking position of the automatic tool changing mechanism;

[0023] The chain tool magazine also includes a tool sleeve pushing assembly fixed on the tool magazine bottom plate corresponding to the notch, and the tool sleeve pushing assembly is used to push the tool sleeve to turn so as to facilitate the automatic tool changing mechanism to take the tool, and the tool sleeve pushing assembly includes a tool sleeve cylinder, and a controllable throttle valve is installed on the pipeline connecting the tool sleeve cylinder and the air source, and the controllable throttle valve is connected to the machine tool control system.

[0024] In some embodiments, the automatic tool changing mechanism includes a drive motor, a housing, a lifting output shaft, a transmission assembly arranged in the housing and respectively connected to the drive motor and the lifting output shaft, and a tool changing arm fixed at the end of the lifting output shaft. The drive motor drives the lifting output shaft to perform lifting and rotating movements through the transmission assembly, and the drive motor is connected to the machine tool control system.

[0025] In certain embodiments, the automatic tool changing mechanism further includes an APB digital display control box and an angle encoder fixed on the box body, the APB digital display control box is connected to the machine tool control system, the APB digital display control box is preset with multiple groups of different angle output data groups set for different tool types, the angle encoder is electrically connected to the APB digital display control box, and the angle encoder is used to identify the angle position of the tool changing arm and output the identified angle position data to the APB digital display control box.

[0026] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0027] 1. The utility model makes the overall volume of the machine tool smaller and reduces the floor space of the machine tool by reasonably arranging the cradle-type five-axis turntable, the workpiece processing assembly, the X-axis direction moving assembly, the Y-axis direction moving assembly, the vertical moving assembly, the chain tool magazine and the automatic tool changing mechanism. At the same time, the utility model integrates the electric control cabinet inside the machine tool body, further reducing the floor space of the machine tool and making the appearance of the machine tool look more beautiful.

[0028] 2. The utility model is provided with a slag collection bin under the cradle-type five-axis turntable, so that the slag generated by workpiece processing can be concentrated in one place, which is convenient for removing the slag;

[0029] 3. The tool magazine of the tool assembly of the utility model is equipped with an APB digital display control box, which can cooperate with the angle encoder and the machine tool control system to realize different operating speeds according to different tools, thereby saving tool magazine tool change time. At the same time, different tools execute different operating speeds, which can avoid vibration of the machine tool during tool change, protect the machine tool tool spindle hole from tool inertia impact, thereby improving the stability of the disc-type tool magazine and extending the service life of the disc-type tool magazine;

[0030] 4. The APB digital display control box can be set to send control signals to the machine tool control system in advance, thereby shortening the waiting time of the tool change arm during the tool change process, thereby improving the tool change efficiency of the tool magazine and the operation efficiency of the machine tool;

[0031] 5. The connecting pipeline between the tool sleeve cylinder and the air source is equipped with a controllable throttle valve, which is connected to the machine tool control system. The controllable throttle valve can adjust the airflow supplied to the tool sleeve cylinder under the control of the machine tool control system, thereby controlling the speed at which the tool sleeve cylinder pushes the tool sleeve, so that the tool sleeve cylinder can execute different operating speeds for different tools, thereby improving the stability of the tool magazine operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a three-dimensional structure diagram of a CNC five-axis machining machine tool of the utility model after the machine tool shell is hidden Figure 1 ;

[0033] Figure 2 This is a three-dimensional structure diagram of a CNC five-axis machining machine tool of the utility model after the machine tool shell is hidden Figure 2 ;

[0034] Figure 3 The utility model is a three-dimensional diagram of a CNC five-axis machining machine tool.

[0035] in:

[0036] 1. Machine tool body; 11. Base; 110. Slag collection bin; 12. Mounting frame; 2. Cradle-type five-axis turntable; 20. Processing table; 21. First drive mechanism; 22. Second drive mechanism; 3. Workpiece processing mechanism; 31. Y-axis moving assembly; 311. Y-axis slide rail; 312. Y-axis slide table; 313. Y-axis screw rod; 32. X-axis moving assembly; 321. X-axis slide rail; 322. X-axis slide table; 323. X-axis screw rod; 33. Vertical moving assembly ; 331, Z-axis guide rail; 332, spindle frame; 333, Z-axis screw; 34, workpiece processing assembly; 341, servo motor; 342, tool spindle; 343, tool mounting seat; 4, tool assembly; 41, chain tool magazine; 411, tool magazine bottom plate; 412, tool sleeve; 413, tool magazine housing; 42, automatic tool changing mechanism; 421, drive motor; 422, box; 423, transmission assembly; 424, tool changing arm; 425, proximity switch box; 7, machine tool housing. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0041] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] Reference Figure 1 and Figure 2The present invention provides a CNC five-axis machining machine tool, including a machine tool body 1, a cradle-type five-axis turntable 2, a workpiece machining mechanism 3 and a tool assembly 4. The machine tool body 1 includes a base 11 and a mounting frame 12 fixed above the base 11, an electric control cabinet 5 is installed inside the mounting frame 12, the cradle-type five-axis turntable 2 is fixed on the base 11 and is located in front of the mounting frame 12, the workpiece machining mechanism 3 is fixed on the top of the mounting frame 12, the tool assembly 4 includes a chain tool magazine 41 fixed on the side of the mounting frame 12 and an automatic tool changing mechanism 42 fixed on the chain tool magazine 41, and the base 11 is provided with a slag collection bin 110 below the cradle-type five-axis turntable 2.

[0044] The cradle-type five-axis turntable 2 is used to fix the workpiece, and includes a processing table 20, a first driving mechanism 21 connected to the processing table 20 and driving the processing table 20 to rotate, and a second driving mechanism 22 connected to the first driving mechanism 21 and driving the first driving mechanism 21 to swing.

[0045] The workpiece processing mechanism 3 is used to process the workpiece, and includes a workpiece processing component 34, an X-axis moving component 32 and a Y-axis moving component 31 for driving the workpiece processing component 34 to move in the horizontal direction, and a vertical moving component 33 for driving the workpiece processing component 34 to move in the horizontal direction. The workpiece processing component 34 is located above the processing table 20.

[0046] Furthermore, the Y-axis moving component 31 includes two Y-axis slide rails 311 fixed in parallel on the top of the mounting frame 12, a Y-axis slide table 312 arranged above the two Y-axis slide rails 311 and slidably connected to the two Y-axis slide rails 311 through blocks, and a Y-axis screw rod 313 fixed on the top of the mounting frame 12, the Y-axis screw rod 313 is arranged between the two Y-axis slide rails 311 and connected to the Y-axis slide table 312.

[0047] The X-axis moving component 32 includes two X-axis slide rails 321 fixed in parallel on the front end surface of the Y-axis slide 312, an X-axis slide 322 arranged at the front ends of the two X-axis slide rails 321 and slidably connected to the two X-axis slide rails 321 through blocks, and an X-axis screw rod 323 fixed on the front end surface of the Y-axis slide 312, the X-axis screw rod 323 is arranged between the two X-axis slide rails 321 and connected to the X-axis slide 322.

[0048] The vertical moving assembly 33 includes two Z-axis guide rails 331 fixed in parallel on the front end surface of the X-axis slide 322, a main shaft frame 332 arranged at the front ends of the two Z-axis guide rails 331 and slidably connected to the two Z-axis guide rails 331 through blocking blocks, and a Z-axis screw rod 333 fixed on the front end surface of the X-axis slide 322, the Z-axis screw rod 333 is arranged between the two Z-axis guide rails 331 and connected to the main shaft frame 332.

[0049] The workpiece processing assembly 34 includes a servo motor 341 fixed on the spindle frame 332, a tool spindle 342 driven by the servo motor 341 to rotate, and a tool mounting seat 343 fixed at the end of the tool spindle 342. Before processing the workpiece, the tool on the chain tool magazine 41 is taken out and mounted on the tool mounting seat 343 by the automatic tool changing mechanism 42.

[0050] The tool assembly 4 is used to provide different tools for the workpiece processing assembly 34, including a chain tool magazine 41 fixed to the side of the mounting frame 12 and an automatic tool changing mechanism 42 fixed on the chain tool magazine 41, and the automatic tool changing mechanism 42 is located between the workpiece processing assembly 34 and the chain tool magazine 41.

[0051] In some embodiments, the CNC five-axis machining machine tool further includes a machine tool control system, which is respectively connected to the electric control cabinet 5, the cradle-type five-axis turntable 2, the workpiece processing mechanism 3, the chain tool magazine 41 and the automatic tool changing mechanism 42. The chain tool magazine 41 and the automatic tool changing mechanism 42 can execute different operating speeds for different tools under the control of the machine tool control system.

[0052] Furthermore, the chain tool magazine 41 also includes a tool magazine base plate 411, a driving sprocket and a driven sprocket rotatably arranged on the tool magazine base plate 411, a chain meshed with the driving sprocket and the driven sprocket, a tool magazine motor fixed on the tool magazine base plate 411 and connected to the driving sprocket, and a plurality of tool sleeves 412, the plurality of tool sleeves 412 are evenly distributed on the circumferential edge of the tool magazine base plate 411, a plurality of connecting frames are connected to the sprocket, the tool sleeves 412 are rotatably connected to the connecting frames, and the tool magazine motor is connected to the machine tool control system.

[0053] The chain tool magazine 41 also includes a tool magazine housing 413 arranged along the edge of the chain tool magazine 41 and located on the outside of the tool sleeve 412. The inner wall of the tool magazine housing 413 abuts against the tool sleeve 412, so that the tool sleeve 412 does not rotate. The tool magazine housing 413 has a notch at the tool taking position of the automatic tool changing mechanism 42.

[0054] The chain tool magazine 41 also includes a tool sleeve pushing assembly fixed on the tool magazine bottom plate 411 corresponding to the notch, and the tool sleeve pushing assembly is used to push the tool sleeve 412 to turn so that the automatic tool changing mechanism 42 can take the tool. When the tool to be taken is rotated to the tool taking position, the tool sleeve pushing assembly pushes the tool sleeve 412 to turn at the notch. The tool sleeve pushing assembly includes a tool sleeve cylinder, and a controllable throttle valve is installed on the pipeline connecting the tool sleeve cylinder and the air source, and the controllable throttle valve is connected to the machine tool control system.

[0055] In some embodiments, the automatic tool changing mechanism 42 includes a drive motor 421, a box 422, a lifting output shaft, a transmission assembly 423 disposed in the box 422 and connected to the drive motor 421 and the lifting output shaft, respectively, and a tool changing arm 424 fixed at the end of the lifting output shaft. The drive motor 421 drives the lifting output shaft to perform lifting and rotating movements through the transmission assembly 423, and the drive motor 421 is connected to the machine tool control system.

[0056] In some embodiments, the automatic tool changing mechanism 42 also includes an APB digital display control box and an angle encoder fixed on the box body. The APB digital display control box is connected to the machine tool control system. The APB digital display control box is preset with multiple groups of different angle output data groups set for different tool types. The angle encoder is electrically connected to the APB digital display control box. The angle encoder is used to identify the angle position of the tool changing arm 424 and output the identified angle position data to the APB digital display control box.

[0057] When the machine tool is changing tools, the APB digital display control box identifies the angular position of the tool changing arm 424 according to the angle encoder and sends a control signal to the machine tool control system. The machine tool control system sends operation instructions to the drive motor 421, the tool magazine motor and the controllable throttle valve according to the control signal input by the APB digital display control box and other signals transmitted and the tool to be replaced, thereby accelerating or decelerating the drive motor 421 and the tool magazine motor. After receiving the instructions, the controllable throttle valve controls the pushing and returning speeds of the tool sleeve cylinder respectively. Specifically, when exchanging conventional tools, the tool magazine runs fast throughout the entire process; when exchanging heavier tools, the tool magazine motor slows down, and after the tool changing arm 424 takes out the tool, the drive motor 421 starts to slow down, thereby reducing the rotation speed of the tool changing arm 424 to avoid vibration of the mechanism due to large inertia; when exchanging large and heavy tools, the tool magazine motor slows down, and after the tool changing arm 424 grabs the tool at the tool taking position, the drive motor 421 starts to slow down until the tool exchange is completed, and the drive motor 421 accelerates again to allow the tool changing arm 424 to quickly return to the origin, so that during the tool changing process, there will be no vibration in the pulling-down, rotating and inserting actions, thereby protecting the machine tool tool spindle hole from the impact of the tool inertia, thereby improving the stability of the disc-type tool magazine and extending the service life of the disc-type tool magazine.

[0058] When changing tools in a conventional tool magazine, the tool changing arm 424 moves to the tool taking position and pauses to wait for the spindle to release the tool for about 1 to 2 seconds, then pulls down to take out the tool, rotates and exchanges, rises to the tool insertion point to install the tool, then pauses and waits for the spindle to lock the tool for about 1 to 2 seconds, and the tool changing arm 424 moves back to the origin. The tool changing arm 424 pauses and waits for a long time during the entire tool changing process, which makes the tool changing efficiency of the tool magazine low, thereby affecting the operating efficiency of the machine tool.

[0059] The APB digital display control box disclosed in the present invention can be set to send a signal to the machine tool control system in advance according to the angle position of the tool change arm 424 identified by the angle encoder, so that the machine tool control system sends a signal to release the clamped tool in advance, so that the tool release action is basically completed when the tool change arm 424 moves to the tool removal position, and the tool can be pulled down and removed within about 0.5 seconds. At the same time, the APB digital display control box outputs a signal to the machine tool system in advance to execute the tool locking command during the rotation, exchange and rise process of the tool change arm 424. When the tool change arm 424 runs to the insertion point and inserts the tool, it waits for about 0.5 seconds to complete the tool locking action, shortening the waiting time of the tool change arm 424 during the tool change process, especially when the workpiece has many processing techniques and requires frequent tool changes, the time saving is particularly prominent.

[0060] Reference Figure 3 The CNC five-axis machining center also includes a machine shell 7, which is detachably fixed to a base 11, and a mounting frame 12, a cradle-type five-axis turntable 2, a workpiece machining mechanism 3 and a tool assembly 4 are all arranged in the machine shell 7, and an inspection door is provided on the machine shell 7.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CNC five-axis machining machine tool, characterized in that: include: The machine tool body (1) comprises a base (11) and a mounting frame (12) fixed above the base (11), wherein an electric control cabinet (5) is installed inside the mounting frame (12); A cradle-type five-axis turntable (2) is used to fix a workpiece, is fixed on the base (11) and is located in front of the mounting frame (12), and comprises a processing table (20), a first driving mechanism (21) connected to the processing table (20) and driving the processing table (20) to rotate, and a second driving mechanism (22) connected to the first driving mechanism (21) and driving the first driving mechanism (21) to swing; A workpiece processing mechanism (3) is used to process a workpiece, is fixed on the top of the mounting frame (12), and comprises a workpiece processing assembly (34), an X-axis moving assembly (32) and a Y-axis moving assembly (31) for driving the workpiece processing assembly (34) to move in the horizontal direction, and a vertical moving assembly (33) for driving the workpiece processing assembly (34) to move in the horizontal direction, wherein the workpiece processing assembly (34) is located above the processing table (20); A tool assembly (4) is used to provide different tools for the workpiece processing assembly (34), comprising a chain tool magazine (41) fixed to the side of the mounting frame (12) and an automatic tool changing mechanism (42) fixed to the chain tool magazine (41), wherein the automatic tool changing mechanism (42) is located between the workpiece processing assembly (34) and the chain tool magazine (41); The base (11) is provided with a slag collection bin (110) below the cradle-type five-axis turntable (2).

2. The CNC five-axis machining center according to claim 1, characterized in that: The Y-axis direction moving component (31) comprises two Y-axis slide rails (311) fixed in parallel on the top of the mounting frame (12), a Y-axis slide table (312) arranged above the two Y-axis slide rails (311) and slidably connected to the two Y-axis slide rails (311) respectively through a clamping block, and a Y-axis screw rod (313) fixed on the top of the mounting frame (12), wherein the Y-axis screw rod (313) is arranged between the two Y-axis slide rails (311) and connected to the Y-axis slide table (312).

3. The CNC five-axis machining center according to claim 2, characterized in that: The X-axis direction moving component (32) comprises two X-axis slide rails (321) fixed in parallel to the front end surface of the Y-axis slide table (312), an X-axis slide table (322) arranged at the front ends of the two X-axis slide rails (321) and slidably connected to the two X-axis slide rails (321) respectively through a clamping block, and an X-axis screw rod (323) fixed to the front end surface of the Y-axis slide table (312), wherein the X-axis screw rod (323) is arranged between the two X-axis slide rails (321) and connected to the X-axis slide table (322).

4. The CNC five-axis machining center according to claim 3, characterized in that: The vertical moving assembly (33) comprises two Z-axis guide rails (331) fixed in parallel to the front end surface of the X-axis slide (322), a main shaft frame (332) arranged at the front ends of the two Z-axis guide rails (331) and slidably connected to the two Z-axis guide rails (331) respectively through a clamping block, and a Z-axis screw rod (333) fixed to the front end surface of the X-axis slide (322), wherein the Z-axis screw rod (333) is arranged between the two Z-axis guide rails (331) and connected to the main shaft frame (332).

5. The CNC five-axis machining center according to claim 4, characterized in that: The workpiece processing assembly (34) comprises a servo motor (341) fixed on the spindle frame (332), a tool spindle (342) driven by the servo motor (341) to perform rotational motion, and a tool mounting seat (343) fixed at the end of the tool spindle (342); The tool on the chain tool magazine (41) is taken out by the automatic tool changing mechanism (42) and installed on the tool mounting seat (343).

6. The CNC five-axis machining center according to any one of claims 1 to 5, characterized in that: The CNC five-axis machining machine tool further comprises a machine tool control system, which is respectively connected to the electric control cabinet (5), the cradle-type five-axis turntable (2), the workpiece machining mechanism (3), the chain tool magazine (41) and the automatic tool changing mechanism (42); The chain tool magazine (41) and the automatic tool changing mechanism (42) can execute different operating speeds for different tools under the control of the machine tool control system.

7. The CNC five-axis machining center according to claim 6, characterized in that: The chain tool magazine (41) also includes a tool magazine base plate (411), a driving sprocket and a driven sprocket rotatably arranged on the tool magazine base plate (411), a chain meshed with the driving sprocket and the driven sprocket, a tool magazine motor fixed on the tool magazine base plate (411) and connected to the driving sprocket, and a plurality of tool sleeves (412), wherein the plurality of tool sleeves (412) are evenly distributed on the circumferential edge of the tool magazine base plate (411), the sprocket is connected to a plurality of connecting frames, the tool sleeves (412) are rotatably connected to the connecting frames, and the tool magazine motor is connected to the machine tool control system.

8. The CNC five-axis machining center according to claim 7, characterized in that: The chain tool magazine (41) further comprises a tool magazine housing (413) arranged along the edge of the chain tool magazine (41) and located outside the tool sleeve (412); the tool magazine housing (413) is provided with a notch at the tool taking position of the automatic tool changing mechanism (42); The chain tool magazine (41) also includes a tool sleeve pushing assembly fixed on the tool magazine bottom plate (411) corresponding to the notch, the tool sleeve pushing assembly is used to push the tool sleeve (412) to turn so as to facilitate the automatic tool changing mechanism (42) to take the tool, the tool sleeve pushing assembly includes a tool sleeve cylinder, a controllable throttle valve is installed on the pipeline connecting the tool sleeve cylinder and the air source, and the controllable throttle valve is connected to the machine tool control system.

9. The CNC five-axis machining center according to claim 6, characterized in that: The automatic tool changing mechanism (42) comprises a driving motor (421), a box (422), a lifting output shaft, a transmission assembly (423) arranged in the box (422) and connected to the driving motor (421) and the lifting output shaft respectively, and a tool changing arm (424) fixed to the end of the lifting output shaft. The driving motor (421) drives the lifting output shaft to perform lifting and rotating motions through the transmission assembly (423). The driving motor (421) is connected to the machine tool control system.

10. The CNC five-axis machining center according to claim 9, characterized in that: The automatic tool changing mechanism (42) further comprises an APB digital display control box and an angle encoder fixed on the box body, wherein the APB digital display control box is connected to the machine tool control system, wherein the APB digital display control box is preset with a plurality of different angle output data groups set for different tool types, wherein the angle encoder is electrically connected to the APB digital display control box, and wherein the angle encoder is used to identify the angle position of the tool changing arm (424) and output the identified angle position data to the APB digital display control box.

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