Double-station five-axis numerical control machining center

Abstract

The utility model discloses a double-station five-axis numerical control machining center which comprises a working table part and a machining part, the working table part comprises a first base table and a second base table, the machining part comprises a portal frame, a first machining device is movably arranged on the front side of the portal frame, and a second machining device is movably arranged on the rear side of the portal frame; the first machining device and the second machining device are the same in structure and each comprise a movable base, a connecting base is movably arranged on the movable base, a Z-axis driving mechanism is arranged on the movable base, a rotating arm is rotationally arranged on the connecting base, a Z-axis rotating mechanism is arranged on the connecting base, and a main shaft motor set is rotationally arranged on the rotating arm. And an X-axis rotating mechanism is arranged in the rotating arm. The double-station five-axis numerical control machining center has the advantages of being high in integration degree and good in compatibility, the production cost can be effectively reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of woodworking machinery technology, specifically to a dual-station five-axis CNC machining center. Background Technology

[0002] Currently, with the continuous improvement of living standards, people's aesthetic requirements for furniture styles are becoming increasingly refined. Furniture factories must continuously improve the processing precision of woodwork to meet market demands, leading to the increasingly widespread use of CNC machine tools for woodwork processing. Due to the irregular nature of customized furniture, the CNC machine tool processing requires at least two steps: rough carving and fine carving. However, the processing volume, tool type, spindle speed, and other process parameters differ between the rough carving and fine carving steps. This necessitates different motion parameters for the CNC machine tool spindle head. Therefore, for manufacturers, the rough carving and fine carving steps require two separate machines, resulting in higher production costs and the need for secondary positioning during woodwork transfer, significantly reducing processing efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a dual-station five-axis CNC machining center with high integration, good compatibility, and the ability to effectively reduce production costs and improve processing efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A dual-station five-axis CNC machining center includes a worktable section and a machining section. The worktable section includes a first base and a second base. The machining section includes a gantry frame. A first machining device is movably mounted on the front side of the gantry frame, and a second machining device is movably mounted on the rear side of the gantry frame. The gantry frame is provided with a first X-axis drive mechanism for driving the first machining device to reciprocate along the X-axis direction and a second X-axis drive mechanism for driving the second machining device to reciprocate along the X-axis direction.

[0006] The first processing device and the second processing device have the same structure, both including a movable base, a connecting seat movably disposed on the movable base, a Z-axis drive mechanism for driving the connecting seat to reciprocate along the Z-axis direction on the movable base, a rotating arm rotatably disposed on the connecting seat, a Z-axis rotation mechanism for driving the rotating arm to rotate around the Z-axis on the connecting seat, a spindle motor assembly rotatably disposed on the rotating arm, and an X-axis rotation mechanism for driving the spindle motor assembly to rotate around the X-axis disposed inside the rotating arm.

[0007] As a further improvement to the above technical solution:

[0008] A first movable stage is movably disposed on the first base, and a first Y-axis drive mechanism is disposed within the first base for driving the first movable stage to reciprocate along the Y-axis direction. A second movable stage is movably disposed on the second base, and a second Y-axis drive mechanism is disposed within the second base for driving the second movable stage to reciprocate along the Y-axis direction.

[0009] The first movable platform and the second movable platform have the same structure, both including a movable platform body. A first support and a second support are movably disposed on the movable platform body. A first vacuum adsorption component is fixedly disposed on the first support, and a second vacuum adsorption component is fixedly disposed on the second support.

[0010] The first Y-axis drive mechanism and the second Y-axis drive mechanism have the same structure, both including a first rack fixedly mounted on the first base and the second base, and a first servo motor fixedly mounted on the movable platform. The output shaft of the first servo motor is circumferentially connected to a first drive gear, and the first drive gear meshes with the first rack.

[0011] The first X-axis drive mechanism and the second X-axis drive mechanism have the same structure, both including a second rack fixedly mounted on the gantry and a second servo motor fixedly mounted on the movable base. The output shaft of the second servo motor is circumferentially connected to a second drive gear, and the second drive gear meshes with the second rack.

[0012] The Z-axis drive mechanism includes a lead screw rotatably mounted on the movable base, a lead screw nut fixedly mounted on the connecting seat, and a third servo motor fixedly mounted on the movable base. The output shaft of the third servo motor is connected to the lead screw via a transmission connection.

[0013] The Z-axis rotation mechanism includes a fourth servo motor, and the output shaft of the fourth servo motor is connected to the rotating arm via a transmission connection.

[0014] The X-axis rotation mechanism includes a fifth servo motor, and the output shaft of the fifth servo motor is connected to the main spindle motor assembly for transmission.

[0015] The spindle motor assembly includes a first spindle motor and a second spindle motor, with the housing of the first spindle motor and the housing of the second spindle motor fixedly connected.

[0016] The first spindle motor is equipped with a first tool chuck and a second tool chuck, and the second spindle motor is equipped with a third tool chuck and a fourth tool chuck. The rotating shaft of the first spindle motor and the rotating shaft of the second spindle motor are arranged perpendicular to each other.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model discloses a dual-station five-axis CNC machining center, comprising a worktable section and a machining section. The worktable section includes a first base and a second base. The machining section includes a first machining device movably disposed on the front side of the gantry and a second machining device movably disposed on the rear side of the gantry, such that the running trajectories of the first and second machining devices are parallel and do not interfere with each other during machining. When machining wooden workpieces, two wooden workpieces can be placed on the first and second bases respectively. The first machining device processes the workpiece on the first base, while the second machining device processes the workpiece on the second base simultaneously, allowing both stations to work at the same time. Alternatively, a large wooden workpiece can be placed on the first and second bases, with the first machining device performing a rough carving process and the second machining device performing a fine carving process. This enables continuous production without stopping the machine and has the advantages of high integration, good compatibility, high flexibility, and wide applicability, effectively reducing production costs and improving processing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a dual-station five-axis CNC machining center.

[0020] Figure 2 This is a structural schematic diagram of a dual-station five-axis CNC machining center from another angle.

[0021] Figure 3 This is a schematic diagram of the second movable platform.

[0022] Figure 4 This is a schematic diagram of the structure of the first processing device and the first X-axis drive mechanism.

[0023] Figure 5 This is a schematic diagram of the structure of the first processing device.

[0024] Figure 6 This is a schematic diagram of the internal structure of the first processing device.

[0025] Figure 7 This is a schematic diagram of the main spindle motor unit.

[0026] Legend:

[0027] 100. Worktable section; 200. Machining section; 1. First base; 3. First movable table; 4. Second movable table; 5. Gantry frame; 6. First machining device; 7. Second machining device; 8. First X-axis drive mechanism; 9. Second X-axis drive mechanism; 10. Movable base; 11. Connecting seat; 12. Z-axis drive mechanism; 1201. Lead screw; 13. Rotating arm; 14. Z-axis rotation mechanism; 15. Spindle motor assembly; 1501. First spindle motor; 1502. Second spindle motor; 1503. First tool chuck; 1504. Second tool chuck; 1505. Third tool chuck; 1506. Fourth tool chuck; 16. X-axis rotation mechanism; 17. Movable table body; 18. First support seat; 19. Second support seat; 2. Second base; 20. First vacuum adsorption assembly; 21. Second vacuum adsorption assembly; 22. Second rack; 23. Second servo motor. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 7As shown, the dual-station five-axis CNC machining center of this embodiment includes a worktable section 100 and a machining section 200. The worktable section 100 includes a first base 1 and a second base 2. The machining section 200 includes a gantry 5. A first machining device 6 is movably disposed on the front side of the gantry 5, and a second machining device 7 is movably disposed on the rear side of the gantry 5. A first X-axis drive mechanism 8 for driving the first machining device 6 to reciprocate along the X-axis direction and a second X-axis drive mechanism 9 for driving the second machining device 7 to reciprocate along the X-axis direction are provided on the gantry 5. Device 6 and the second processing device 7 have the same structure, both including a movable base 10, a connecting seat 11 movably disposed on the movable base 10, a Z-axis drive mechanism 12 for driving the connecting seat 11 to reciprocate along the Z-axis direction on the movable base 10, a rotating arm 13 rotatably disposed on the connecting seat 11, a Z-axis rotation mechanism 14 for driving the rotating arm 13 to rotate around the Z-axis on the connecting seat 11, a spindle motor assembly 15 rotatably disposed on the rotating arm 13, and an X-axis rotation mechanism 16 for driving the spindle motor assembly 15 to rotate around the X-axis disposed inside the rotating arm 13. This dual-station five-axis CNC machining center includes a worktable section 100 and a machining section 200. The worktable section 100 includes a first base 1 and a second base 2. The machining section 200 includes a first machining device 6 movably disposed on the front side of the gantry frame 5 and a second machining device 7 movably disposed on the rear side of the gantry frame 5, such that the running trajectory of the first machining device 6 is parallel to the running trajectory of the second machining device 7, and they do not interfere with each other during machining. When machining wooden workpieces, two wooden workpieces can be placed on the first base 1 and the second base 2 respectively. The first machining device 6 processes the wooden workpiece on the first base 1, while the second machining device 7 processes the wooden workpiece on the second base 2. The two stations can work simultaneously. Alternatively, a large wooden workpiece can be placed on the first base 1 and the second base 2. The first machining device 6 performs a rough carving process on the large wooden workpiece, and then the second machining device 7 performs a fine carving process. This allows for continuous production without stopping the machine. It has the advantages of high integration, good compatibility, high flexibility of use, and wide applicability, and can effectively reduce production costs and improve processing efficiency.

[0030] Preferably, a first movable stage 3 is movably disposed on the first base 1, and a first Y-axis drive mechanism (not shown in the figure) is disposed within the first base 1 for driving the first movable stage 3 to reciprocate along the Y-axis direction. A second movable stage 4 is movably disposed on the second base 2, and a second Y-axis drive mechanism (not shown in the figure) is disposed within the second base 2 for driving the second movable stage 4 to reciprocate along the Y-axis direction. In this embodiment, slide rails are respectively disposed on the first base 1 and the second base 2 along the Y-axis direction, and sliders are respectively disposed at the bottom of the first movable stage 3 and the second movable stage 4. The first movable stage 3 is slidably connected to the first base 1 through a slide rail slider assembly, and the second movable stage 4 is slidably connected to the second base 2 through a slide rail slider assembly, so that the wooden workpiece placed on the first movable stage 3 and / or the second movable stage 4 has a processing stroke in the Y-axis direction.

[0031] Preferably, the first movable platform 3 and the second movable platform 4 have the same structure, both including a movable platform body 17. A first support 18 and a second support 19 are movably disposed on the movable platform body 17. A first vacuum adsorption component 20 is fixedly disposed on the first support 18, and a second vacuum adsorption component 21 is fixedly disposed on the second support 19. In this embodiment, the first movable table 3 and the second movable table 4 have the same structure, both including a movable table body 17. A slide rail is provided on the movable table body 17 along the X-axis direction. A slider is provided at the bottom of the first support seat 18 and the second support seat 19 respectively. The first support seat 18 and the second support seat 19 are slidably connected to the movable table body 17 through the slide rail slider assembly. By adjusting the distance between the first support seat 18 and the second support seat 19, wooden workpieces of different sizes and specifications can be supported to meet the processing needs of wooden workpieces of different specifications, and the application range is wide. A first vacuum adsorption component 20 is fixedly provided on the first support seat 18, and a second vacuum adsorption component 21 is fixedly provided on the second support seat 19. The first vacuum adsorption component 20 and the second vacuum adsorption component 21 are connected to a vacuum device through a connecting pipe. When the vacuum device is activated, a negative pressure is generated at the first vacuum adsorption component 20 and the second vacuum adsorption component 21, thereby adsorbing and fixing the wooden workpiece. It is especially suitable for processing scenarios where board-shaped wooden workpieces are positioned.

[0032] Preferably, the first Y-axis drive mechanism and the second Y-axis drive mechanism have the same structure, both including a first rack fixedly mounted on the first base 1 and the second base 2, and a first servo motor fixedly mounted on the movable platform 17. The output shaft of the first servo motor is circumferentially connected to a first drive gear, which meshes with the first rack. In this embodiment, both the first Y-axis drive mechanism and the second Y-axis drive mechanism adopt a rack and pinion transmission, which has the advantages of high transmission efficiency, high positioning accuracy, high load-bearing capacity, and stable and reliable operation. In other embodiments, the first Y-axis drive mechanism and the second Y-axis drive mechanism can also adopt components with reciprocating movement functions such as piston cylinders, chain drive mechanisms, and synchronous belt drive mechanisms, and are not limited to this embodiment.

[0033] Preferably, the first X-axis drive mechanism 8 and the second X-axis drive mechanism 9 have the same structure, both including a second rack 22 fixedly mounted on the gantry frame 5 and a second servo motor 23 fixedly mounted on the movable base 10. The output shaft of the second servo motor 23 is circumferentially fixedly connected to a second drive gear, and the second drive gear meshes with the second rack 22. In this embodiment, the front and rear sides of the crossbeam of the gantry frame 5 are respectively provided with slide rails along the X-axis direction, and the movable base 10 is provided with a slider. The first processing device 6 is slidably connected to the front side of the crossbeam of the gantry frame 5 through the slide rail slider assembly, and the second processing device 7 is slidably connected to the rear side of the crossbeam of the gantry frame 5 through the slide rail slider assembly, so that the woodworking tools on the first processing device 6 and the second processing device 7 have a processing stroke in the X-axis direction. The first X-axis drive mechanism 8 and the second X-axis drive mechanism 9 also adopt the form of gear and rack transmission, which also has the advantages of high transmission efficiency, high positioning accuracy, high load-bearing capacity, and stable and reliable operation. In other embodiments, the first X-axis drive mechanism 8 and the second X-axis drive mechanism 9 can also adopt components with reciprocating movement functions such as piston cylinder, chain drive mechanism, and synchronous belt drive mechanism, and are not limited to this embodiment.

[0034] Preferably, the Z-axis drive mechanism 12 includes a lead screw 1201 rotatably mounted on the movable base 10, a lead screw nut fixedly mounted on the connecting seat 11, and a third servo motor fixedly mounted on the movable base 10. The output shaft of the third servo motor is drively connected to the lead screw 1201. In this embodiment, a slide rail is provided on the movable base 10 along the Z-axis direction, and a slider is provided on the connecting seat 11. The connecting seat 11 is slidably connected to the movable base 10 through the slide rail slider assembly, so that the woodworking tool has a machining stroke in the Z-axis direction. The Z-axis drive mechanism 12 adopts a lead screw drive, which can convert the rotational motion of the lead screw 1201 into the linear motion of the lead screw nut, and has the advantages of high positioning accuracy, smooth operation, and long service life. In other embodiments, the Z-axis drive mechanism 12 can also adopt components with reciprocating movement functions such as piston cylinders, chain drive mechanisms, and synchronous belt drive mechanisms, and is not limited to this embodiment.

[0035] Preferably, the Z-axis rotation mechanism 14 includes a fourth servo motor, the output shaft of which is connected to the rotating arm 13 via a transmission connection. In this embodiment, the Z-axis rotation mechanism 14 drives the rotating arm 13 to rotate around the Z-axis, giving the woodworking tool a rotational machining degree of freedom to rotate around the Z-axis.

[0036] Preferably, the X-axis rotation mechanism 16 includes a fifth servo motor, the output shaft of which is connected to the spindle motor assembly 15 via a transmission connection. In this embodiment, the X-axis rotation mechanism 16 drives the spindle motor assembly 15 to rotate around the X-axis, giving the woodworking tool a rotational machining degree of freedom to rotate around the X-axis.

[0037] Preferably, the spindle motor assembly 15 includes a first spindle motor 1501 and a second spindle motor 1502, with the housing of the first spindle motor 1501 fixedly connected to the housing of the second spindle motor 1502.

[0038] Preferably, the first spindle motor 1501 is equipped with a first tool chuck 1503 and a second tool chuck 1504, and the second spindle motor 1502 is equipped with a third tool chuck 1505 and a fourth tool chuck 1506. The shafts of the first spindle motor 1501 and the second spindle motor 1502 are perpendicular to each other. In this embodiment, the first spindle motor 1501 can be equipped with two different woodworking tools, and the second spindle motor 1502 can be equipped with two different woodworking tools. That is, the first processing device 6 can be equipped with four different woodworking tools at the same time, and the second processing device 7 can be equipped with another four different woodworking tools at the same time. When processing the same wooden workpiece requires the use of more than four different woodworking tools, rough processing can be performed first using the four woodworking tools on the first processing device 6, and then fine processing can be performed using the other four woodworking tools on the second processing device 7. This can save the process of changing woodworking tools, save tool changing time, and effectively improve processing efficiency.

[0039] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dual-station five-axis CNC machining center, characterized in that, The machine includes a worktable section (100) and a machining section (200). The worktable section (100) includes a first base (1) and a second base (2). The machining section (200) includes a gantry frame (5). A first machining device (6) is movably disposed on the front side of the gantry frame (5), and a second machining device (7) is movably disposed on the rear side of the gantry frame (5). A first X-axis drive mechanism (8) for driving the first machining device (6) to move along the X-axis and a second X-axis drive mechanism (9) for driving the second machining device (7) to move along the X-axis are provided on the gantry frame (5). The first processing device (6) and the second processing device (7) have the same structure, both including a movable base (10), a connecting seat (11) is movably arranged on the movable base (10), a Z-axis drive mechanism (12) for driving the connecting seat (11) to move along the Z-axis is arranged on the movable base (10), a rotating arm (13) is rotatably arranged on the connecting seat (11), a Z-axis rotation mechanism (14) for driving the rotating arm (13) to rotate around the Z-axis is arranged on the connecting seat (11), a spindle motor assembly (15) is rotatably arranged on the rotating arm (13), and an X-axis rotation mechanism (16) for driving the spindle motor assembly (15) to rotate around the X-axis is arranged inside the rotating arm (13).

2. The dual-station five-axis CNC machining center according to claim 1, characterized in that, A first movable stage (3) is movably disposed on the first base (1), and a first Y-axis drive mechanism for driving the first movable stage (3) to move along the Y-axis is disposed inside the first base (1). A second movable stage (4) is movably disposed on the second base (2), and a second Y-axis drive mechanism for driving the second movable stage (4) to move along the Y-axis is disposed inside the second base (2).

3. The dual-station five-axis CNC machining center according to claim 2, characterized in that, The first movable platform (3) and the second movable platform (4) have the same structure, both including a movable platform body (17). A first support (18) and a second support (19) are movably arranged on the movable platform body (17). A first vacuum adsorption component (20) is fixedly arranged on the first support (18), and a second vacuum adsorption component (21) is fixedly arranged on the second support (19).

4. The dual-station five-axis CNC machining center according to claim 3, characterized in that, The first Y-axis drive mechanism and the second Y-axis drive mechanism have the same structure, both including a first rack fixedly mounted on the first base (1) and the second base (2) and a first servo motor fixedly mounted on the movable platform (17). The output shaft of the first servo motor is circumferentially connected to a first drive gear, and the first drive gear meshes with the first rack.

5. The dual-station five-axis CNC machining center according to claim 4, characterized in that, The first X-axis drive mechanism (8) and the second X-axis drive mechanism (9) have the same structure. Both include a second rack (22) fixedly mounted on the gantry (5) and a second servo motor (23) fixedly mounted on the movable base (10). The output shaft of the second servo motor (23) is circumferentially connected to a second drive gear, and the second drive gear meshes with the second rack (22).

6. The dual-station five-axis CNC machining center according to claim 5, characterized in that, The Z-axis drive mechanism (12) includes a lead screw (1201) rotatably mounted on the movable base (10), a lead screw nut fixedly mounted on the connecting seat (11), and a third servo motor fixedly mounted on the movable base (10). The output shaft of the third servo motor is connected to the lead screw (1201) in a transmission manner.

7. The dual-station five-axis CNC machining center according to claim 6, characterized in that, The Z-axis rotation mechanism (14) includes a fourth servo motor, the output shaft of which is connected to the rotating arm (13) via a transmission.

8. The dual-station five-axis CNC machining center according to claim 7, characterized in that, The X-axis rotation mechanism (16) includes a fifth servo motor, the output shaft of which is connected to the main spindle motor assembly (15) for transmission.

9. The dual-station five-axis CNC machining center according to claim 8, characterized in that, The spindle motor assembly (15) includes a first spindle motor (1501) and a second spindle motor (1502), with the housing of the first spindle motor (1501) and the housing of the second spindle motor (1502) fixedly connected.

10. The dual-station five-axis CNC machining center according to claim 9, characterized in that, The first spindle motor (1501) is provided with a first tool chuck (1503) and a second tool chuck (1504), and the second spindle motor (1502) is provided with a third tool chuck (1505) and a fourth tool chuck (1506). The rotating shaft of the first spindle motor (1501) and the rotating shaft of the second spindle motor (1502) are arranged perpendicular to each other.

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