Totally-closed double-spindle and five-spindle combined equipment machining center

By designing a fully enclosed dual-spindle plus five-axis combined equipment machining center, the coordination of multiple groups of linear guide rail subs and servo motors is used to achieve rapid and efficient processing of large and complex heterogeneous products, solving the problems of low efficiency and poor quality in the existing technology, improving processing efficiency and quality stability, and improving the degree of automation and safety of the processing environment.

CN120134072APending Publication Date: 2025-06-13ZHONGPIN INTELLIGENT MASCH CO LTD
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Patent Information

Application Number
CN202510489624.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

The existing CNC machining centers are inefficient and poor in quality when processing large and complex heterogeneous products, and it is difficult to install multiple tools with large specifications and different specifications. The protection effect of the processing process is poor and cannot meet customers' high-quality and efficient production needs.

Method used

A fully enclosed dual-spindle plus five-axis combined equipment machining center is designed, which adopts the coordination of multiple groups of linear guide rail pairs and servo motors to achieve multi-directional linear motion, and has the functions of synchronous dual-drive, independent motion and interactive work. At the same time, a wireless trigger probe is used to collect workpiece position data, combining the design of pneumatic lifting doors and fast rolling doors to ensure the safety and cleanness of the processing environment.

Benefits of technology

Through this design, the processing efficiency and product quality stability and reliability are significantly improved, rapid and efficient processing of heterogeneous products is achieved, manual intervention is reduced, automation is improved, and pollution and impurities are effectively prevented during the processing process.

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Abstract

The invention provides a totally-closed double-spindle and five-axis combined equipment machining center, which relates to the technical field of plate machining equipment and comprises a cross beam part, a lathe bed part, a shell part, a double-spindle machining head part, a five-axis machining center head part, a left tool magazine part, a right tool magazine part, a slag self-discharging part and an air knife dust blowing part. According to the machining center provided by the invention, a transposition function is added due to the design of a double-main-shaft structure, cutters such as an extension rod milling cutter and a drill bit with the length of 400-500mm can be clamped, a saw blade cutter with the diameter of 500mm can be clamped by the five-shaft machining center, appearance finishing and angle machining of different products are realized, and the machining efficiency is improved. The production efficiency is greatly improved, the product quality is stabilized, the labor intensity of workers is reduced, in addition, the automatic slag discharging function is added, and the workshop environment is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of plate processing equipment, and in particular relates to a fully enclosed dual-spindle plus five-axis combined equipment processing center. Background Art

[0002] The CNC machining center is a highly automated machine tool. It integrates CNC technology, mechanical manufacturing technology, automation technology and other multi-field technologies, and has powerful processing capabilities. During processing, it can automatically change different types of tools through the tool magazine and automatic tool changer, and continuously complete various complex processes such as milling, drilling, boring, tapping, etc., without frequent manual intervention.

[0003] The existing CNC machining centers have a single structural design, which makes it difficult to quickly and efficiently process medium-to-large, complex and heterogeneous products. It is also difficult to install tools with large specifications and differences, and the protection effect during the machining process is poor. It can no longer meet customers' needs for high-quality and efficient production. Summary of the invention

[0004] The purpose of the present invention is to provide a fully enclosed dual-spindle plus five-axis combination equipment machining center to solve the problems of low machine tool processing efficiency, poor quality, and pollution to the workshop working environment when processing special materials, as well as to effectively improve the processability, quality stability and reliability of product processing, and solve the problems of personal operation safety and automatic recovery of residual substances.

[0005] The present invention is achieved through the following technical solutions:

[0006] A fully enclosed dual-spindle plus five-axis combined equipment machining center, including a crossbeam part, a bed part, a shell part, and also includes a dual-spindle machining head part, a five-axis machining center head part, a left tool magazine part, a right tool magazine part, a self-discharging slag part and an air knife dust blowing part;

[0007] The crossbeam part is respectively mounted on the third linear guide pair and the fourth linear guide pair of the bed part through the left column and the right column;

[0008] The shell part wraps the entire machining center into a closed structure, which is used to protect the machining center;

[0009] The dual-spindle machining head part is mounted on the first linear guide pair of the bed part through an X1 drive plate;

[0010] The head part of the five-axis machining center is installed on the second linear guide pair of the bed part through the X2 drive plate;

[0011] The air knife dust blowing part is fixed to the rear of the crossbeam part through an air knife lifting cylinder mounting plate;

[0012] The left tool magazine part and the right tool magazine part are respectively located at the lower left side and the lower right side of the crossbeam part;

[0013] The self-discharging slag part is located at the front end of the bed part and is used for collecting slag.

[0014] Further, the double-spindle machining head part includes a three-axis cross slide, a first spindle, a second spindle, a Z1-axis servo motor and an X1-axis servo motor;

[0015] Among them, the sixth linear guide pair, the Z1-axis servo motor and the lead screw transmission pair are installed on the three-axis cross slide; the Z1-axis lifting slide is connected to the sixth linear guide pair and the lead screw transmission pair, and the sixth linear motion of the machine tool is realized by the drive of the Z1-axis servo motor;

[0016] The seventh linear guide pair and the eighth linear guide pair are installed on the Z1-axis lifting slide; the first spindle is installed on the first spindle slide and is assembled on the seventh linear guide pair;

[0017] The first lifting cylinder is installed on the first cylinder mounting plate and fixed on the Z1-axis lifting slide, and the piston rod of the first lifting cylinder is connected to the first spindle slide;

[0018] The second spindle is installed on the second spindle slide and is assembled on the eighth linear guide pair;

[0019] The second lifting cylinder is installed on the second cylinder mounting plate and fixed on the Z1-axis lifting slide, and the piston rod of the second lifting cylinder is connected to the second spindle slide;

[0020] The X1-axis servo motor is installed on the X1 drive plate and is installed on the three-axis cross slide together.

[0021] Further, the five-axis machining center head part includes a five-axis cross slide, a Z2-axis servo motor, an X2-axis servo motor and a five-axis head;

[0022] Among them, a ninth linear guide pair, a Z2-axis servo motor and a lead screw transmission pair are installed on the five-axis cross slide;

[0023] The Z2-axis lifting slide is connected to the ninth linear guide pair and the lead screw transmission pair, and the ninth linear motion of the machine tool is realized by the drive of the Z2-axis servo motor;

[0024] The piston rod of the balance auxiliary cylinder is connected to the Z2-axis lifting slide;

[0025] The five-axis head is installed on the Z2-axis lifting slide and rotates around the second linear guide pair and the ninth linear guide pair;

[0026] The X2-axis servo motor is installed on the five-axis cross slide through the X2 drive board.

[0027] Further, the beam part includes a beam frame, a left column, and a right column;

[0028] A first linear guide pair and a beam rack are installed on the beam frame; the Y1 servo motor is installed on a gear reducer one and is installed on the left column together; the Y2 servo motor is installed on a gear reducer two and is installed on the right column together.

[0029] Further, the bed part includes

[0030] a bed frame, which is horizontally placed on the ground; a third linear guide pair, a bed rack one, a fourth linear guide pair, a bed rack two, a fifth linear guide pair, and a bed rack three are arranged on the bed frame;

[0031] a moving bed, which is located at the rear side of the bed frame and is installed on the fifth linear guide pair;

[0032] a Y3 servo motor, which is installed on the moving bed, and the reduction gear on it meshes with the bed rack three.

[0033] Further, the left tool magazine part includes:

[0034] a left tool magazine bracket, which is fixedly connected to a hollow rotary platform one;

[0035] a left tool disc, which is installed on the hollow rotary platform one together with a left tool disc servo motor; the left tool disc is used for installing tools.

[0036] Further, the right tool magazine part includes:

[0037] a right tool magazine bracket, which is fixedly connected to a hollow rotary platform two;

[0038] a right tool disc, which is installed on the hollow rotary platform two together with a right tool disc servo motor; the right tool disc is used for installing tools.

[0039] Further, the self-discharging slag part includes:

[0040] a transverse conveyor belt, which is located at the front end of the bed part and is fixed to the ground through adjusting feet;

[0041] a waste collection cart, which is located at the discharge port end of the transverse conveyor belt and is used for collecting slag.

[0042] Further, the air knife dust blowing part includes:

[0043] an air knife, which is installed on an air knife mounting bracket;

[0044] A lifting cylinder, whose cylinder body is installed on the air knife lifting cylinder mounting plate, and the piston rod part is installed on the air knife mounting bracket;

[0045] A guiding shaft, which is used to guide the movement of the lifting cylinder.

[0046] The beneficial effects of the present invention are as follows:

[0047] (1) Through the cooperation of multiple groups of linear guide pairs and servo motors, linear motions in multiple directions of the machine tool are achieved, with functions of synchronous dual-drive, independent movement, and interactive work, enabling rapid workpiece processing and greatly improving processing efficiency; for example, the double spindles and the five-axis head can quickly switch between different processes and perform tasks synchronously;

[0048] (2) A wireless trigger type probe is used to collect and locate the workpiece position data. During the processing, components such as the lead screw transmission pair cooperate with the servo motor to ensure the motion accuracy. At the same time, the setting of the balance auxiliary cylinder effectively improves the machining accuracy of the machine tool and the service life of related components;

[0049] (3) The fully enclosed design, combined with the pneumatic lifting door and the fast rolling shutter door, not only ensures the safety of the processing environment but also facilitates the operator to observe the processing situation; the air knife dust blowing part works in coordination with the dust suction pipeline and the waste collection system, which can timely clean the debris and dust generated during processing, keep the working area clean, and prevent impurities from affecting processing and equipment operation;

[0050] (4) The design of the left and right tool magazines, combined with the tool disc servo motor, realizes the function of rapid tool change. The self-discharging slag part, through the linkage of the longitudinal and transverse conveyor belts, automatically sends the residual slag generated during processing into the waste collection vehicle, reducing manual intervention and improving the automation degree of the processing process.

[0051] (5) The design of the double spindle structure is equipped with a transposition mechanism, which can hold tools such as extension rod milling cutters and drills with a length of 400 - 500 mm for processing. The five-axis machining center can hold a saw blade tool with a diameter of 500 mm to realize the shape trimming and angle machining of different types of products. Description of the Drawings

[0052] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0053] Figure 2 It is a schematic diagram of the composition structure of the double spindle machining head part in the present invention;

[0054] Figure 3 It is a schematic diagram of the composition structure of the five-axis machining center head part in the present invention;

[0055] Figure 4 It is a schematic diagram of the composition structure of the crossbeam part and the left and right tool magazine parts in the present invention;

[0056] Figure 5 It is a schematic diagram of the position of the air knife dust blowing part in the present invention

[0057] Figure 6 It is a schematic diagram of the composition structure of the air knife dust blowing part in the present invention;

[0058] Figures 7-8 It is a schematic diagram of the composition structure of the housing part in the present invention. Specific embodiments

[0059] The following further describes the present invention with reference to the accompanying drawings:

[0060] Embodiment: A fully enclosed double-spindle plus five-axis combined equipment machining center, the structure is as Figure 1 shown, including a crossbeam part 101, a bed part 102, a double-spindle machining head part 103, a five-axis machining center head part 104, a left tool magazine part 105, a right tool magazine part 106, a self-discharging slag part 107, an air knife dust blowing part 108 and a housing part 109.

[0061] Refer to Figure 2 shown, use screws to install the sixth linear guide pair 6, the Z1-axis servo motor 13, and the lead screw transmission pair 14 on the three-axis cross slide 11, use screws to connect the Z1-axis lifting slide 12 with the sixth linear guide pair 6 and the lead screw transmission pair 14, and through the drive of the Z1-axis servo motor 13, realize the sixth linear motion of the machine tool. Install the seventh linear guide pair 7 and the eighth linear guide pair 8 on the Z1-axis lifting slide 12 as required; install the first spindle 20 on the first spindle slide 19 and assemble them together on the seventh linear guide pair 7, install the first lifting cylinder 16 on the first cylinder mounting plate 18 and fix it on the Z1-axis lifting slide 12, and the piston rod of the first lifting cylinder 16 is connected to the first spindle slide 19; install the second spindle 21 on the second spindle slide 22 and assemble them together on the eighth linear guide pair 8, install the second lifting cylinder 15 on the second cylinder mounting plate 17 and fix it on the Z1-axis lifting slide 12, and the piston rod of the second lifting cylinder 15 is connected to the second spindle slide 22. By controlling the on-off of the second lifting cylinder 15 and the first lifting cylinder 16, realize the eighth linear motion and the seventh linear motion of the machine tool. Install the X1-axis servo motor 24 on the X1 drive plate 23 and then install them together on the three-axis cross slide 11. At this time, the assembly of the double-spindle machining head part is completed. The double-spindle structure transposition function can hold tools such as extension rod milling cutters and drills with a length of 400-500 mm for machining.

[0062] Refer to Figure 3As shown in the figure, the ninth linear guide pair 9, the Z2-axis servo motor 27, and the lead screw transmission pair 30 are installed on the five-axis cross slide 25 with screws according to the drawing. The Z2-axis lifting slide 28 is connected to the ninth linear guide pair 9 and the lead screw transmission pair 30 with screws. Through the drive of the Z2-axis servo motor 27, the ninth linear motion of the machine tool is realized. The balance auxiliary cylinder 26 is installed on the balance cylinder bracket 31 and is also installed on the five-axis cross slide 25. The piston rod of the cylinder is connected to the Z2-axis lifting slide 28. When the ninth linear motion occurs, the machining accuracy of the machine tool and the service life of the Z2-axis servo motor 27 and the lead screw transmission pair 30 are effectively improved. The five-axis head 29 is installed on the Z2-axis lifting slide 28 according to the required assembly accuracy. When machining, the five-axis head 29 can rotate around the second linear guide pair 2 and the ninth linear guide pair 9 for machining. The X2-axis servo motor 33 is installed on the X2 drive plate 32 and then installed on the five-axis cross slide 25 together. At this time, the assembly of the head part of the five-axis machining center is completed. The head part of the five-axis machining center can hold a saw blade cutter with a diameter of 500 mm to realize the shape trimming and angle machining of heterogeneous products.

[0063] As Figure 4 shown in the figure, the first linear guide pair 1 and the cross beam rack 44 are installed on the cross beam frame with screws according to the requirements. The Y1 servo motor 46 is installed on the gear reducer 1 47 and is installed on the left column 45 together. The left column 45 is fixed at the installation position at the lower left of the cross beam frame with screws. The Y2 servo motor 48 is installed on the gear reducer 2 49 and is installed on the right column 50 together. The right column 50 is fixed to the lower right of the cross beam frame with screws. At this time, the assembly of the cross beam part is completed.

[0064] Referring to Figure 1 shown in the figure, the bed frame 51 is adjusted to be horizontally placed on the ground. The longitudinal conveyor 1 52 and the longitudinal conveyor 2 53 are installed under the table grid 1 54 and the table grid 2 55 respectively with screws according to the installation position dimensions of the drawing. Secondly, the third linear guide pair 3, the bed rack 1 56, the fourth linear guide pair 4, the bed rack 2 57, the fifth linear guide pair 5, and the bed rack 3 58 are installed on the bed frame 51 according to the drawing requirements. Then, the Y3 servo motor 59 is installed on the moving bed 60 and is installed on the fifth linear guide pair 5 with screws together. The reduction gear on the Y3 servo motor 59 meshes with the bed rack 3 58. When the Y3 servo motor 59 is powered on, it drives the moving bed 60 to reciprocate, realizing the fifth linear motion of the machine tool. At this time, the assembly of the bed part 102 is completed.

[0065] Specifically, referring to Figure 4As shown in the figure, after installing the left cutter head 35 and the left cutter head servo motor 37 on the hollow rotary platform 1 36 with screws, they are fixed on the left tool magazine support 34 with screws together. The left tool magazine dust cover 38 is installed on the left tool magazine support 34 to prevent dust from falling into the tool magazine and causing tool change failure. When the left cutter head servo motor 37 is powered on and running, different cutters on the left cutter head 35 can be stopped at the tool outlet position to achieve the tool change function. Install the left tool magazine part 105 at the left end position under the crossbeam according to the installation dimensions in the drawing. At this time, the installation of the left tool magazine part 105 is completed.

[0066] After installing the right cutter head 40 and the right cutter head servo motor 42 on the hollow rotary platform 2 41 with screws, they are fixed on the right tool magazine support 39 with screws together. The right tool magazine dust cover 43 is installed on the right tool magazine support 39 to prevent dust from falling into the tool magazine and causing tool change failure. When the right cutter head servo motor 42 is powered on and running, different cutters on the right cutter head 40 can be stopped at the tool outlet position to achieve the tool change function. Install the right tool magazine part 106 at the right end position under the crossbeam according to the installation dimensions in the drawing. At this time, the installation of the right tool magazine part 106 is completed.

[0067] Specifically, referring to Figure 1 As shown in the figure, place the customized horizontal conveyor belt 61 at the specified position at the front end of the bed part 102, and adjust it to the standard height by adjusting the foot pads 62. Place the waste collection cart 63 at the end of the horizontal conveyor belt 61. When the first longitudinal conveyor belt 52 and the second longitudinal conveyor belt 53 are powered on and running, the horizontal conveyor belt 61 runs simultaneously to send the generated residual slag into the waste collection cart 63 to achieve the function of self-discharging slag. At this time, the installation of the self-discharging slag part 107 is completed.

[0068] Specifically, referring to Figures 5-6 As shown in the figure, install the lifting cylinder 64 and the guide shaft support 69 on the air knife lifting cylinder mounting plate 66 with screws. Connect the piston rod of the lifting cylinder 64 and the guide shaft 65 to the air knife mounting bracket 67, and then install the air knife 68 on the air knife mounting bracket 67. When the lifting cylinder 64 is powered on and off, the up and down movement function of the air knife can be achieved. At this time, the assembly of the air knife dust blowing part is completed. Fix the air knife lifting cylinder mounting plate 66 of the air knife dust blowing part on the back of the crossbeam part 101 with screws; when the crossbeam part 101 makes the third linear motion, the air knife dust blowing part 108 moves with the crossbeam to complete the cleaning.

[0069] Finally, fix the housing part 109 on the bed frame 51 with screws to complete the installation of the housing part, referring to Figures 7-8 As shown in the figure.

[0070] As Figure 1As shown in the figure, assemble the double-spindle machining head part 103, the five-axis machining center head part 104, the crossbeam part 101, and the bed part 102:

[0071] (1) Use screws to install the left column 45 and the right column 50 of the crossbeam part 101 on the third linear guide pair 3 and the fourth linear guide pair 4 of the bed part 102 respectively. Make the gear reducer one 47 mesh with the bed rack one 56 and the gear reducer two 49 mesh with the bed rack two 57 respectively. When the Y1 servo motor 46 and the Y2 servo motor 48 are powered on, the third linear motion and the fourth linear motion of the machine tool are realized (the third linear motion and the fourth linear motion move synchronously in the same direction, belonging to the synchronous co-directional dual-drive structure);

[0072] (2) Use screws to install the double-spindle machining head part 103 and the five-axis machining center head part 104 on the first linear guide pair 1 and the second linear guide pair 2 respectively through the X1 drive plate 23 in the double-spindle machining head part and the X2 drive plate 32 in the five-axis machining center head part 104, realizing the first linear motion and the second linear motion of the machine tool (the first linear guide pair and the second linear guide pair are the same guide pair, and the double-spindle machining head and the five-axis machining center head can realize independent motions in the same or different directions through the meshing of the X1-axis servo motor 24 and the X2-axis servo motor 33 with the crossbeam rack 44, and the two heads can also move simultaneously).

[0073] Description of the machining process of the fully enclosed double-spindle + five-axis combined equipment machining center:

[0074] When the machine tool needs to process a workpiece, the machine tool runs to a safe position through the first linear guide pair 1, the second linear guide pair 2, the third linear guide pair 3, the fourth linear guide pair 4, the fifth linear guide pair 5, the sixth linear guide pair 6, the seventh linear guide pair 7, the eighth linear guide pair 8, and the ninth linear guide pair 9. At this time, the pneumatic lifting door 70 and the fast rolling shutter door 71 are powered on and opened. The moving bed 60 in the bed part 102 runs to the material receiving area at the rear end of the machine through the fifth linear guide pair 5. After the manipulator places the workpiece 77 on the table, the vacuum pump 76 is started to adsorb the workpiece on the table. The moving bed 60 sends the workpiece 77 to a set position inside the closed shield and remains stationary. The pneumatic lifting door 70 and the fast rolling shutter door 71 are closed, and at the same time, the functions of the first longitudinal conveyor 52, the second longitudinal conveyor 53 in the bed part and the transverse conveyor 61 in the self-discharging slag part 107 are turned on. At this time, the machine enters the waiting-for-processing state; the processing is started through the controller matched with the machining center. Before processing, a wireless trigger probe can be used to collect data on the position of the workpiece 77 to complete positioning; during the processing, the operator can observe the tool use and the machining situation of the workpiece 77 through the perspective window of the fast rolling shutter door 71, the plexiglass perspective window 72, and the plexiglass perspective window 73. If there is a problem, the fast rolling shutter door 71 can be opened for processing after stopping, and then the fast rolling shutter door 71 is closed to continue processing; when the five-axis head 29 processes the workpiece 77, any one of the first spindle 20 and the second spindle 21 can perform the tool change function through the first linear motion, the sixth linear motion, the seventh linear motion, or the eighth linear motion, and the tool change can also be carried out in sequence; when the five-axis head 29 completes the current process, the five-axis head 29 is lifted to a safe height through the ninth linear motion. At this time, the first spindle 20 or the second spindle 21 that has been equipped with a suitable tool immediately performs the processing of the next process, and at the same time, the five-axis performs the tool change function through the second linear motion head, so that the machine tool achieves the functions of synchronous double drive, independent movement, interactive work, and rapid completion of workpiece processing;

[0075] After the machining is completed, the five-axis head 29 and the double spindles are lifted to a safe height. The air knife 68 of the air knife dust blowing part 108 is started, and the lifting cylinder 64 is energized to descend. The crossbeam part 101 will drive the air knife 68 through the third linear motion to start cleaning the residues such as debris and dust on the surface of the workpiece 77. The generated floating dust enters the external central dust removal bin through the dust suction pipeline 74. The debris falls on the longitudinal conveyor belt 1 52 and the longitudinal conveyor belt 2 53 and is conveyed to the transverse conveyor belt 61, and finally falls into the waste collection vehicle 63. After cleaning the residues on the surface of the workpiece 77, the lifting cylinder 64 is de-energized, the air knife 68 is retracted, the pneumatic lifting door 70 is opened, and the moving bed 60 moves the workpiece 77 out of the room. After the workpiece 77 is taken away, the moving bed 60 will move back into the closed shield again, the pneumatic lifting door 70 is closed, the air knife 68 of the air knife dust blowing part 108 is started again, the lifting cylinder 64 is energized to descend, and the crossbeam part 101 will drive the air knife 68 through the third linear motion to start cleaning the residues such as debris and dust left on the table surface of the moving bed 60. After the conveyor belt slag is conveyed, the longitudinal conveyor belt 1 52, the longitudinal conveyor belt 2 53 and the transverse conveyor belt 61 in the self-discharging slag part 107 will be closed, the waste collection vehicle switch door 75 is opened, and the debris in the waste collection vehicle 63 is cleaned, thus completing the whole process.

[0076] The main structure, basic principle and advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above embodiments, and can be implemented in other specific forms without departing from the basic structure and / or control process of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is equally included in the patent protection scope of the present invention.

Claims

1. A fully enclosed dual-spindle plus five-axis combined equipment machining center, comprising a beam part (101), a bed part (102), and a shell part (109), characterized in that: It also includes a dual-spindle machining head part (103), a five-axis machining center head part (104), a left tool magazine part (105), a right tool magazine part (106), a self-discharging slag part (107) and an air knife dust blowing part (108); The crossbeam part (101) is respectively mounted on a third linear guide pair (3) and a fourth linear guide pair (4) of the bed part (102) through a left column (45) and a right column (50); The shell part (109) wraps the entire machining center into a closed structure, which is used to protect the machining center; The dual-spindle machining head part (103) is mounted on the first linear guide rail pair (1) of the bed part (102) via an X1 drive plate (23); The head part (104) of the five-axis machining center is mounted on the second linear guide pair (2) of the bed part (102) via an X2 drive plate (32); The wind knife dust blowing part (108) is fixed to the rear of the crossbeam part (101) through the wind knife lifting cylinder mounting plate (66); The left tool magazine part (105) and the right tool magazine part (106) are respectively located at the lower left part and the lower right part of the crossbeam part; The self-discharging slag part (107) is located at the front end of the bed part (102) and is used for collecting slag.

2. A fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The dual-spindle machining head part (103) comprises a three-axis cross slide (11), a first spindle (20), a second spindle (21), a Z1-axis servo motor (13) and an X1-axis servo motor (24); The sixth linear guide pair (6), the Z1 axis servo motor (13) and the lead screw transmission pair (14) are installed on the three-axis cross slide (11); the Z1 axis lifting slide (12) is connected to the sixth linear guide pair (6) and the lead screw transmission pair (14), and the sixth linear motion of the machine tool is realized by the drive of the Z1 axis servo motor (13); The seventh linear guide pair (7) and the eighth linear guide pair (8) are mounted on the Z1 axis lifting slide (12); the first spindle (20) is mounted on the spindle slide 1 (19) and assembled on the seventh linear guide pair (7); A lifting cylinder (16) is mounted on a cylinder mounting plate (18) and fixed on the Z1-axis lifting slide (12), and a piston rod of the lifting cylinder (16) is connected to the spindle slide (19); The second spindle (21) is mounted on the second spindle slide (22) and assembled on the eighth linear guide pair (8); The second lifting cylinder (15) is mounted on the second cylinder mounting plate (17) and fixed on the Z1 axis lifting slide plate (12), and the piston rod of the second lifting cylinder (15) is connected to the second spindle slide plate (22); The X1-axis servo motor (24) is mounted on the X1 driving plate (23) and is also mounted on the three-axis cross slide (11).

3. A fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The five-axis machining center head part (104) includes a five-axis cross slide (25), a Z2-axis servo motor (27), an X2-axis servo motor (33) and a five-axis head (29); Wherein, the five-axis cross slide (25) is equipped with a ninth linear guide pair (9), a Z2-axis servo motor (27) and a lead screw transmission pair (30); The Z2-axis lifting slide plate (28) is connected to the ninth linear guide pair (9) and the lead screw transmission pair (30), and is driven by the Z2-axis servo motor (27) to realize the ninth linear motion of the machine tool; The piston rod of the balance auxiliary cylinder (26) is connected to the Z2 axis lifting slide plate (28); The five-axis head (29) is mounted on the Z2-axis lifting slide (28) and rotates around the second linear guide pair 2 and the ninth linear guide pair (9); The X2-axis servo motor (33) is mounted on the five-axis cross slide (25) via an X2 drive plate (32).

4. A fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The crossbeam part (101) comprises a crossbeam frame, a left upright column (45) and a right upright column (50); The crossbeam frame is provided with a first linear guide pair (1) and a crossbeam rack (44); a Y1 servo motor (46) is installed on a gear reducer (47) and is installed together with the left column (45); and a Y2 servo motor (48) is installed on a gear reducer (49) and is installed together with the right column (50).

5. The fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The bed part (102) includes The bed frame (51) is placed horizontally on the ground; the bed frame (51) is provided with a third linear guide pair (3), a bed rack 1 (56), a fourth linear guide pair (4), a bed rack 2 (57), a fifth linear guide pair (5), and a bed rack 3 (58); A movable bed (60) is located at the rear side of the bed frame (51) and is mounted on the fifth linear guide rail pair (5); The Y3 servo motor (59) is mounted on the mobile bed (60), and the reducer gear on the motor is meshed with the bed rack three (58).

6. The fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The left tool magazine part (105) comprises: A left tool magazine support (34) fixedly connected to the hollow rotating platform (36); The left cutter disc (35) and the left cutter disc servo motor (37) are installed on the hollow rotating platform 1 (36); the left cutter disc (35) is used to install the cutter.

7. The fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The right tool magazine part (106) comprises: A right tool magazine support (39), which is fixedly connected to the second hollow rotating platform (41); The right cutter disc (40) and the right cutter disc servo motor (42) are installed on the second hollow rotating platform (41); the right cutter disc (40) is used to install the cutter.

8. The fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The self-discharging slag part (107) comprises: A transverse conveyor belt (61) is located at the front end of the bed portion (102) and is fixed on the ground by adjusting the pads (62); The waste collection vehicle (63) is located at the discharge port end of the transverse conveyor belt (61) and is used to collect waste residue.

9. The fully enclosed dual-spindle plus five-axis combined equipment machining center according to claim 1, characterized in that: The wind knife dust blowing part (108) comprises: A wind knife (68) is mounted on the wind knife mounting bracket (67); A lifting cylinder (64), the cylinder body of which is mounted on a wind knife lifting cylinder mounting plate (66), and the piston rod of which is mounted on a wind knife mounting bracket (67); The guide shaft (65) is used to guide the movement of the lifting cylinder (64).