Five-axis high-speed high-precision machining center

Abstract

The invention relates to the field of five-axis machine tools, in particular to a five-axis high-speed and high-precision machining center which comprises a machine base, a machining center body and a machining center body. The double-shaft movement device adopts a reinforced extension arm type structure and is used for driving the machining main shaft to move in the X and Z orthogonal directions or the Y and Z orthogonal directions; the horizontal moving device is used for driving the offset type double-swinging-head device to move in the horizontal direction; the offset type double-swing-head device is far away from the double-shaft movement device, and the offset type double-swing-head device has two rotational freedom degrees of an A shaft and a C shaft and is used for machining a workpiece at multiple angles; the machining main shaft is used for completing machining operation of the parts through high-speed rotation and accurate feeding; the automatic tool changing device is used for automatically selecting and changing tools; the control system is used for coordinating movement of all the devices so as to achieve efficient and high-precision machining. The stability and reliability of the machining center are improved.

Description

Technical Field

[0001] The present application relates to the field of five-axis machine tools, and in particular to a five-axis high-speed and high-precision machining center. Background Art

[0002] Five-axis machining centers play an important role in related industries such as molds, auto parts, and industrial machinery. They can achieve multi-faceted processing of parts and improve processing efficiency and precision. However, with the continuous development of industrial technology, higher requirements are placed on the stability, reliability, and processing accuracy of machining centers.

[0003] Related technology A new type of five-axis machining center includes a rotatable worktable, and processing mechanisms for parts processing are arranged on both sides of the worktable. The processing mechanisms are arranged on both sides of the worktable in a corresponding structure. Tool magazines for storing processing tools are arranged on both sides of the worktable, and an automatic tool changing mechanism for automatic tool changing is arranged between the tool magazine and the corresponding processing mechanism. The processing mechanism includes a column for rotatably mounting the worktable, a swinging spindle head for parts processing, and a moving mechanism for driving the swinging spindle head to move along the X / Y / Z axis. The swinging spindle head is installed on the moving mechanism and can rotate and swing in a circumferential direction. A CNC rotary table for fixing the worktable and driving it to rotate is arranged on the columns, and the two sides of the worktable are respectively fixedly connected to the corresponding CNC rotary table.

[0004] Although the five-axis machining center of the prior art performs well in terms of machining capabilities and flexibility, it still has some major defects. First, the bed design of the machining center of the prior art may not be stable enough, which makes it easy to be affected by the weight of the workpiece during the machining process, thereby affecting the dynamic performance of the linear axis. Secondly, the moving parts of the prior art are often close to the cutting processing area, which is easily affected by the heat and debris generated by cutting, increasing the failure rate. These problems not only affect the stability and reliability of the machining center, but also limit the improvement of its machining accuracy and efficiency. Summary of the invention

[0005] In order to improve the stability and reliability of the machining center and thereby achieve more efficient and higher-precision machining, the present application provides a five-axis high-speed and high-precision machining center.

[0006] The five-axis high-speed and high-precision machining center provided in this application adopts the following technical solutions: A five-axis high-speed and high-precision machining center, comprising: A machine base, wherein the machine base adopts an integral structure; A dual-axis motion device, which adopts a reinforced cantilever structure and is used to drive the machining spindle to move in two orthogonal directions, X and Z or Y and Z; A horizontal moving device, used for driving the offset double swing head device to move in the horizontal direction; An offset double-swing head device, the offset double-swing head device is far away from the double-axis motion device, and the offset double-swing head device has two rotational degrees of freedom of the A axis and the C axis, and is used to realize the processing of the workpiece at multiple angles; The machining spindle completes the parts machining operation through high-speed rotation and precise feeding; Automatic tool changing device, used to automatically select and change tools; The control system is used to coordinate the movement of each device to achieve efficient and high-precision processing.

[0007] By adopting the above technical solution, the machining center takes the integral machine base as a solid foundation, and drives the machining spindle to move precisely in the two orthogonal directions of X, Z or Y, Z through the dual-axis motion device with a reinforced cantilever structure. At the same time, the horizontal motion device is responsible for driving the offset double-swing head device with two rotational degrees of freedom of the A-axis and the C-axis to move in the horizontal direction to realize the machining of the workpiece at multiple angles. The machining spindle completes the machining operation of the parts through high-speed rotation and precise feeding. During the machining process, the automatic tool changer can automatically select and replace the tool to improve the machining efficiency. The entire machining process is precisely coordinated by the control system to ensure that the movement of each device can complete the machining task efficiently and accurately. First of all, the design of the integral machine base and the reinforced cantilever structure greatly improves the stability and reliability of the machining center, so that the weight of the workpiece will not have an adverse effect on the dynamic performance of the linear axis. Secondly, the moving parts are far away from the cutting processing area, which effectively reduces the failure rate of the moving parts and extends the service life of the equipment. Finally, the machining center can achieve more efficient and higher-precision machining, meeting the dual requirements of machining accuracy and efficiency in the field of high-precision machining, and bringing better user experience and economic benefits.

[0008] Optionally, the biaxial motion device includes a base, a sliding seat, a sliding drive mechanism, a lifting seat and a lifting drive mechanism, the base is fixed on the machine base, the sliding seat is slidingly matched with the base, the sliding drive mechanism is arranged on the base, the sliding drive mechanism is used to drive the sliding seat to move in a horizontal direction, the lifting seat is slidingly matched with the sliding seat, the lifting drive mechanism is arranged on the sliding seat and is used to drive the lifting seat to rise and fall, and the machining spindle is arranged on the lifting seat.

[0009] By adopting the above technical solution, the base is fixed on the base of the machining center, and the sliding seat is driven by the sliding drive mechanism to slide along the horizontal direction on the base to achieve precise movement of the machining spindle in the horizontal direction (such as the X-axis or the Y-axis). At the same time, the lifting seat and the sliding seat slide together, and the lifting drive mechanism drives the lifting seat to lift and lower in the vertical direction (such as the Z-axis), thereby achieving precise positioning of the machining spindle in the vertical direction. In this way, the machining spindle can move precisely in the two orthogonal directions of X, Z or Y, Z to meet the needs of complex machining tasks. First, its compact structure and reasonable design can ensure the precise movement of the machining spindle in the horizontal and vertical directions, thereby improving the machining accuracy; secondly, the sliding drive mechanism and the lifting drive mechanism both use high-precision and high-reliability transmission elements to ensure the smoothness and accuracy of the movement.

[0010] Optionally, the automatic tool changing device includes a tool magazine mechanism and an automatic tool changing mechanism, wherein the tool magazine mechanism is used to store and rotate tools, and the automatic tool changing mechanism is used to select and replace tools from the tool magazine mechanism onto the machining spindle.

[0011] By adopting the above technical solution, the tool magazine mechanism is used as a device for storing and rotating tools. It stores various tools in advance according to processing requirements and can rotate to the specified position under the command of the control system. The automatic tool changer is responsible for accurately selecting the required tools from the tool magazine mechanism and quickly and accurately replacing them on the processing spindle. At the same time, it can also remove the processed or worn tools from the spindle and put them back into the tool magazine mechanism. This process is completely automatically controlled by the control system without manual intervention, which greatly improves processing efficiency and accuracy.

[0012] Optionally, the tool magazine mechanism includes a support seat, a tool disc and a first rotating drive member, the tool disc is rotatably connected to the support seat, the first rotating drive member is arranged on the support seat, and is used to drive the tool disc to rotate, and a plurality of automatic clamping members for clamping the tool are circumferentially arranged on the tool disc.

[0013] By adopting the above technical solution, the support seat supports the entire tool magazine mechanism and allows the tool disc to rotate on it. The tool disc is provided with a plurality of automatic clamping parts along the circumference, which are used to clamp and fix various tools to ensure the stability and accuracy of the tools during rotation and tool changing. The first rotating drive member is arranged on the support seat, which receives instructions from the control system and drives the tool disc to rotate so that the required tool can be accurately rotated to the tool changing position. When changing the tool, the automatic tool changing mechanism will cooperate with the automatic clamping parts on the tool disc to complete the selection, replacement and clamping of the tool. The tool changing time is shortened and the processing efficiency is improved.

[0014] Optionally, the automatic tool changing mechanism includes a tool holder, a rotating rod, an assembly plate, and a second rotating drive member, wherein the rotating rod passes through the tool holder and is rotatably connected to the tool holder, and the second rotating drive member is arranged on the tool holder to drive the rotating rod to rotate; the rotating rod is fixedly connected to the assembly plate, and both ends of the assembly plate are provided with a clamping groove for placing the tool; an abutment column for clamping the tool is arranged inside the clamping groove.

[0015] By adopting the above technical solution, the tool holder serves as the basic supporting component of the automatic tool changing mechanism, on which a rotating rod is arranged, which is rotatably connected to the tool holder and driven to rotate by the second rotating drive member. The assembly plate is fixedly connected to the rotating rod and rotates with the rotating rod. Both ends of the assembly plate are provided with a clamping groove for accurately placing the tool during tool changing. An abutment column is arranged inside the clamping groove, and the abutment column can abut against a specific part of the tool to achieve a stable clamping of the tool. During the tool changing process, the second rotating drive member drives the rotating rod to rotate to the specified position, and the clamping groove on the assembly plate is aligned with the automatic clamping member on the tool disc. The selection, replacement and clamping of the tool are completed through the clamping action of the abutment column.

[0016] Optionally, the offset double-swing head device includes a sliding seat, a support, a flip table, a flip drive mechanism, a fixture table and a rotation drive mechanism, the sliding seat and the base are slidably matched, the support is fixed to the upper surface of one end of the sliding seat, both ends of the flip table are fixedly provided with flip shafts, one of the flip shafts is rotatably connected to the support through a bearing, the flip drive mechanism is used to drive the other flip shaft to rotate, the fixture table is rotatably connected to the flip table, and the rotation drive mechanism is arranged on the flip table to drive the fixture table to rotate.

[0017] By adopting the above technical solution, the sliding seat and the base slide and cooperate to realize the horizontal movement of the offset double swing head device on the base. The support is fixed at one end of the sliding seat to provide a stable support for the flip table. The flip table is rotatably connected to the support through a flip axis, one of the flip axes is fixed, and the other flip axis is driven to rotate by a flip drive mechanism, so as to realize the flipping action of the flip table in the horizontal plane. The fixture table is rotatably connected to the flip table, and is driven by a rotary drive mechanism to rotate in a vertical plane to realize multi-angle processing of the workpiece. During the processing, the workpiece is fixed on the fixture table, and the workpiece can be accurately positioned and processed in a complex space through the synergistic effect of the flip drive mechanism and the rotary drive mechanism. Through the synergistic effect of the flip drive mechanism and the rotary drive mechanism, the workpiece can be processed at multiple angles in a complex space, which improves the flexibility and adaptability of the processing. The workpiece can be processed at multiple angles in one clamping, which reduces the number of clamping times and processing time, and improves the processing efficiency. At the same time, it can adapt to workpieces of different sizes and shapes, expand the processing range, and meet more diverse processing needs.

[0018] Optionally, the flipping drive mechanism includes a mounting seat, a multi-stage gear assembly and a drive assembly, wherein the multi-stage gear assembly and the drive assembly are both located in a cavity opened in the mounting seat, and the drive assembly is used to drive the multi-stage gear assembly to operate, thereby driving the flipping table to achieve flipping movement.

[0019] By adopting the above technical solution, the mounting seat serves as a housing for the multi-stage gear assembly and the drive assembly, providing a closed and stable working environment. The multi-stage gear assembly is located in a cavity opened in the mounting seat. Through the mutual meshing of the gears at each stage, the power of the drive assembly is transmitted and amplified to the flip axis, thereby driving the flip table to achieve a smooth and precise flipping movement. The drive assembly serves as a power source, providing the necessary torque and speed through a motor or other driving methods to drive the multi-stage gear assembly to operate.

[0020] Optionally, the multi-stage gear assembly includes a first gear set, a second gear set and a driven gear, the first gear set is simultaneously meshed with the second gear set, the second gear set is simultaneously meshed with the driven gear, the driven gear is sleeved on one of the flip shafts and fixedly connected to the flip shaft, and the drive assembly is used to drive the first gear set to operate.

[0021] By adopting the above technical solution, the driving component drives the first gear set to operate, and the first gear set transmits power to the second gear set by mutual meshing with the second gear set, and then the second gear set meshes with the driven gear, and finally transmits power to the driven gear sleeved on the flip shaft, driving the flip shaft to rotate, and realizing the flipping movement of the flip table. This process ensures the smoothness and accuracy of the flipping action through the step-by-step transmission and amplification of multi-stage gears. The step-by-step transmission of multi-stage gears reduces the loss of power during the transmission process, thereby improving the efficiency of power transmission. Through the meshing and transmission of multi-stage gears, the flipping action can achieve smooth and continuous rotation, avoiding the impact and vibration caused by sudden acceleration or deceleration.

[0022] Optionally, the first gear group includes a driving shaft and a driving gear, the driving shaft is rotatably connected to the mounting seat, and the driving gear is sleeved on the driving shaft and fixedly connected to the driving shaft; the second gear group includes a linkage shaft, a first linkage gear and a second linkage gear, the linkage shaft is rotatably connected to the mounting seat, the first linkage gear is sleeved on the linkage shaft and fixedly connected to the linkage shaft, and the second linkage gear is sleeved on the linkage shaft and fixedly connected to the linkage shaft; the driving gear is meshed with the first linkage gear, the first linkage gear is meshed with the second linkage gear, and the second linkage gear is meshed with the driven gear; the driving assembly is used to drive the driving shaft to rotate.

[0023] By adopting the above technical solution, the driving assembly drives the driving shaft to rotate, and the driving gear on the driving shaft rotates accordingly, and meshes with the first linkage gear, transmitting power to the first linkage gear on the linkage shaft. The first linkage gear then keeps synchronous rotation with the second linkage gear on the same linkage shaft (because they are both fixedly connected to the linkage shaft), and then the second linkage gear meshes with the driven gear, and finally transmits power to the driven gear, driving it to rotate, thereby realizing the flipping movement of the flip shaft 71. This process ensures that the power is smoothly, efficiently and accurately transmitted to the flip shaft through the precise meshing and step-by-step transmission of multi-stage gears.

[0024] Optionally, the driving assembly includes a driving motor, a driving wheel, a driven wheel and a conveyor belt, the driving motor is mounted on a mounting seat, the driving wheel is sleeved on an output shaft of the driving motor and fixedly connected to the output shaft of the driving motor, the driven wheel is sleeved on the driving shaft and fixedly connected to the driving shaft, and the conveyor belt is arranged around the driving wheel and the driven wheel.

[0025] By adopting the above technical solution, the drive motor is used as the power source, and its output shaft drives the driving wheel to rotate. The driving wheel transmits power to the driven wheel through the conveyor belt that surrounds it and the driven wheel. The driven wheel is fixedly connected to the driving shaft, so the rotation of the driven wheel drives the rotation of the driving shaft, which in turn drives the driving gear on the driving shaft to rotate, starting the power transmission process of the entire multi-stage gear assembly, and finally realizing the driving of the flip shaft. This working principle realizes the smooth and reliable transmission of power between the drive motor and the driving shaft through the flexible connection of the conveyor belt.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The design of the integral machine base and reinforced cantilever structure significantly enhances the stability and reliability of the machining center, ensuring high-precision machining under high load and high-speed motion. This design effectively reduces the adverse effect of the workpiece weight on the dynamic performance of the linear axis and improves the stability and accuracy of the machining process; 2. By moving moving parts (such as dual-axis motion devices and offset dual-swing head devices) away from the cutting processing area, the direct impact of vibration and impact on the moving parts during the cutting process is effectively reduced, thereby reducing the failure rate and extending the service life of the equipment; 3. The machining center integrates advanced dual-axis motion devices, offset double-swing head devices, automatic tool changers and control systems, which can achieve efficient and high-precision machining of workpieces at multiple angles. The automatic tool changer can quickly and accurately change tools, improving machining efficiency; while the control system can accurately coordinate the movement of each device to ensure the stability and accuracy of the machining process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a five-axis high-speed and high-precision machining center in an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram of a machine base, a dual-axis motion device, a machining spindle, an automatic tool changing device, a sliding seat, a support, a flip table, a flip drive mechanism, a fixture table and a rotation drive mechanism in an embodiment of the present application.

[0029] Figure 3 It is a schematic structural diagram of the first tank chain cover, the second tank chain cover, the first engine head cover, and the second engine head cover in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of a multi-stage gear assembly in an embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the structure of the driving component in the embodiment of the present application.

[0032] Description of reference numerals: 1. Machine base; 101. Waste trough; 102. Enclosure assembly; 2. Dual-axis motion device; 21. Base; 22. Sliding seat; 23. Lifting seat; 24. Lifting drive mechanism; 26. First tank chain cover; 27. Second tank chain cover; 28. First machine head cover; 29. ​​Second machine head cover; 3. Processing spindle; 4. Automatic tool changing device; 41. Tool magazine mechanism; 411. Support seat; 412. Tool disc; 413. First rotating drive member; 414. Automatic clamping member; 42. Automatic tool changing mechanism; 421. Tool seat; 422. Rotating rod; 423. Assembly plate; 424. Second rotating drive member; 425. Snap-in groove; 5. Sliding seat; 51. Third tank chain cover; 6. Support seat; 7. Flip Table; 71, flip shaft; 8, flip drive mechanism; 81, mounting seat; 82, multi-stage gear assembly; 821, first gear set; 8211, driving shaft; 8212, driving gear; 822, second gear set; 8221, linkage shaft; 8222, first linkage gear; 8223, second linkage gear; 823, driven gear; 83, drive assembly; 831, drive motor; 832, driving wheel; 833, driven wheel; 834, conveyor belt; 84, protective cover; 9, fixture table; 10, rotation drive mechanism; 11, waste discharge device; 111, spiral discharge member; 112, rotation drive member; 12, tool magazine bracket surrounding library assembly; 13, front door assembly; 14, pedal assembly. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be the common meanings understood by those skilled in the art to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components.

[0035] For ease of understanding, in the horizontal direction of this embodiment, the moving direction of the sliding seat 22 is defined as the first direction, and the moving direction of the sliding seat 5 is defined as the second direction, and the five-axis high-speed and high-precision machining center is described based on this.

[0036] The present application embodiment discloses a five-axis high-speed and high-precision machining center. Figure 1 and Figure 2 The five-axis high-speed and high-precision machining center includes a machine base 1, a biaxial motion device 2, a machining spindle 3, an automatic tool changer 4, a horizontal moving device, and an offset double swing head device. A panel assembly 102 is arranged at the front, back, left, and right sides of the frame, wherein the biaxial motion device 2, the machining spindle 3, the automatic tool changer 4, the horizontal moving device, and the offset double swing head device are all located inside the panel assembly 102.

[0037] Reference Figure 2 The base 1 provides a solid support for all moving parts. The dual-axis motion device 2 is arranged on the base 1. Through its internal mechanical structure and advanced control algorithm, the dual-axis motion device 2 can drive the machining spindle 3 to achieve fast and high-precision positioning and movement in two orthogonal directions of X, Z or Y, Z. The machining spindle 3, as a key component for performing machining tasks, can easily complete various machining operations such as cutting and drilling of parts through its high-speed rotation and precise feeding.

[0038] Reference Figure 2 In this embodiment, the biaxial motion device 2 includes a base 21, a sliding seat 22, a sliding drive mechanism, a lifting seat 23 and a lifting drive mechanism 24. The base 21 is fixed to the upper surface of one end of the machine base 1, and the sliding seat 22 is slidingly arranged on the upper surface of the base 21. A concave cavity is provided on the upper surface of the base 21, and the concave cavity is located between the sliding seat 22 and the base 21. The sliding drive mechanism is arranged inside the concave cavity, and the sliding drive mechanism is used to drive the sliding seat 22 to move along the first direction. In this embodiment, the specific sliding drive mechanism can be a motor screw structure. The lifting seat 23 slides with the sliding seat 22, and the lifting drive mechanism 24 is arranged on the sliding seat 22. The lifting drive mechanism 24 is used to drive the lifting seat 23 to move up and down, and the processing spindle 3 is arranged on the lifting seat 23. In this embodiment, the specific number of the lifting drive mechanisms 24 is two, and the specific lifting drive mechanism 24 is a cylinder or a hydraulic cylinder.

[0039] Reference Figure 2 and Figure 3 A first head cover 28 and a second head cover 29 are provided on the lifting seat 23, wherein the lifting seat 23 and the top of the processing spindle 3 are both located in the first head cover 28, the number of the second head covers 29 is two, and the two lifting drive mechanisms 24 are respectively located in the two second head covers 29.

[0040] Continue to refer to Figure 2 and Figure 3 A retractable first tank chain cover 26 is provided on both sides of the sliding seat 22, one end of the first tank chain cover 26 is connected to the side wall of the sliding seat 22, and the other end of the first tank chain cover 26 is connected to the peripheral component. A retractable second tank chain cover 27 is provided between the lifting seat 23 and the sliding seat 22, the top end of the second tank chain cover 27 is connected to the lifting seat 23, and the bottom end of the second tank chain cover 27 is connected to the bottom end of the sliding seat 22.

[0041] Continue to refer to Figure 2 and Figure 3 The automatic tool changing device 4 is arranged on one side of the dual-axis motion device 2. Specifically, the automatic tool changing device 4 includes a tool magazine mechanism 41 and an automatic tool changing mechanism 42. The tool magazine mechanism 41 is used to store and rotate tools, and the automatic tool changing mechanism 42 is used to select and replace tools from the tool magazine mechanism 41 to the machining spindle 3.

[0042] Reference Figure 2 The tool magazine mechanism 41 includes a support seat 411, a cutter disc 412 and a first rotating driving member 413. The bottom end of the support seat 411 is fixedly connected to the machine base 1. The cutter disc 412 is rotatably connected to the support seat 411. The first rotating driving member 413 is arranged on the support seat 411. The first rotating driving member 413 is used to drive the cutter disc 412 to rotate. A plurality of automatic clamping members 414 for clamping the tool are circumferentially arranged on the cutter disc 412.

[0043] Continue to refer to Figure 2The automatic tool changing mechanism 42 includes a tool holder 421, a rotating rod 422, an assembly plate 423, and a second rotating driving member 424. The tool holder 421 is fixed on the support seat 411. The rotating rod 422 extends in the vertical direction. The rotating rod 422 passes through the tool holder 421 and is rotatably connected to the tool holder 421. The second rotating driving member 424 is arranged on the tool holder 421, and the second rotating driving member 424 is used to drive the rotating rod 422 to rotate. The bottom end of the rotating rod 422 is fixedly connected to the assembly plate 423, and both ends of the rotating plate are provided with a clamping groove 425 for placing the tool. An assembly hole is provided inside the clamping groove 425, and an abutting column is slidably provided in the assembly hole. A spring is also provided between the abutting column and the assembly hole, and one end of the spring is connected to the grounding column, and the other end of the spring is connected to the inside of the assembly hole. The automatic tool changing device 4 can automatically select and replace a suitable tool according to the processing requirements, thereby significantly improving the processing efficiency and flexibility. It enables the machining center to quickly change tools without interrupting the machining process to meet the needs of different machining tasks.

[0044] Reference Figure 1 A tool magazine bracket and magazine assembly 12 is disposed outside the automatic tool changing device 4 , and the tool magazine bracket and magazine assembly 12 has a protective effect on the automatic tool changing device 4 .

[0045] Reference Figure 2 , the horizontal moving device is arranged on the machine base 1, and the horizontal moving device is closely connected with the offset double swing head device. The horizontal moving device is used to drive the offset double swing head device to flexibly move along the second direction, so as to realize the precise adjustment of the processing position. The specific horizontal moving device can be a motor screw structure or a linear module. The offset double swing head device has two rotational degrees of freedom, the A-axis and the C-axis. Through the precise control of these two axes, the offset double swing head device can easily realize the processing of the workpiece at multiple angles, further meeting the high-precision processing requirements of complex parts.

[0046] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5Specifically, the offset double-swing head device includes a sliding seat 5, a support 6, a flip table 7, a flip drive mechanism 8, a fixture table 9 and a rotation drive mechanism 10. The sliding seat 5 is slidably matched with the base. The horizontal moving device is used to drive the sliding seat 5 to move toward or away from the processing spindle 3. The specific horizontal moving device can be a motor screw structure. The support 6 is fixed to the upper surface of one end of the sliding seat 5, and the rotation drive mechanism 10 is arranged on the upper surface of the other end of the sliding seat 5. The two ends of the flip table 7 are fixedly provided with flip shafts 71, and one of the flip shafts 71 is rotationally connected to the support 6 through a bearing. The flip drive mechanism 8 is used to drive the other flip shaft 71 to rotate. The fixture table 9 is rotationally connected to the flip table 7, and the rotation drive mechanism 10 is arranged on the flip table 7. The rotation drive mechanism 10 is used to drive the fixture table 9 to rotate. The specific rotation drive mechanism 10 is a DD motor.

[0047] Reference Figure 2 , Figure 4 and Figure 5 The flip driving mechanism 8 includes a mounting seat 81, a multi-stage gear assembly 82 and a driving assembly 83. A cavity is provided in the mounting seat 81, and the multi-stage gear assembly 82 and the driving assembly 83 are both located in the cavity. The multi-stage gear assembly 82 includes a first gear set 821, two second gear sets 822 and a driven gear 823. The mounting seat 81 is fixed to one end of the sliding seat 5. The first gear set 821 includes a driving shaft 8211 and a driving gear 8212. The driving shaft 8211 is rotatably connected to the mounting seat 81. The driving gear 8212 is sleeved on the driving shaft 8211 and fixedly connected to the driving shaft 8211. The second gear set 822 includes a linkage shaft 8221, a first linkage gear 8222 and a second linkage gear 8223. The linkage shaft 8221 is rotatably connected to the mounting seat 81. The first linkage gear 8222 is sleeved on the linkage shaft 8221 and fixedly connected to the driving shaft 8211. The second linkage gear 8223 is sleeved on the linkage shaft 8221 and fixedly connected to the linkage shaft 8221. The diameter of the first linkage gear 8222 is greater than the diameter of the second linkage gear 8223. The driven gear 823 is sleeved on one of the flip shafts 71 and fixedly connected to the flip shaft 71. The driving gear 8212 is meshed with the two first linkage gears 8222 at the same time. The diameter of the driving gear 8212 is smaller than the diameter of the first linkage gear 8222. The two second linkage gears 8223 are meshed with the driven gear 823 at the same time. The diameter of the second linkage gear 8223 is smaller than the diameter of the driven gear 823.

[0048] Reference Figure 2 and Figure 5The driving assembly 83 includes a driving motor 831, a driving wheel 832, a driven wheel 833 and a conveyor belt 834. The driving motor 831 is installed on the mounting seat 81. The driving wheel 832 is sleeved on the output shaft of the driving motor 831 and fixedly connected to the output shaft of the driving motor 831. The driven wheel 833 is sleeved on the driving shaft 8211 and fixedly connected to the driving shaft 8211. The conveyor belt 834 is arranged around the driving wheel 832 and the driven wheel 833. The driving motor 831 serves as a power source, and its output shaft drives the driving wheel 832 to rotate. The driving wheel 832 transmits power to the driven wheel 833 through a conveyor belt that surrounds it and the driven wheel 833. The driven wheel 833 is fixedly connected to the driving shaft 8211. Therefore, the rotation of the driven wheel 833 drives the rotation of the driving shaft 8211, and then drives the driving gear 8212 on the driving shaft 8211 to rotate, starting the power transmission process of the entire multi-stage gear assembly 82, and finally realizing the driving of the flip table 7, thereby driving the flip table 7 to flip at different angles.

[0049] Reference Figure 3 A protective cover 84 is provided outside the mounting seat 81, and the mounting seat 81, the multi-stage gear assembly 82 and the driving assembly 83 are all located in the protective cover 84. The protective cover 84 protects the mounting seat 81, the multi-stage gear assembly 82 and the driving assembly 83, thereby extending the service life of the whole. The third tank chain cover 51 is provided on both opposite sides of the sliding seat 5, and the third tank chain cover 51 protects the machine base 1.

[0050] Reference Figure 2 , waste troughs 101 are provided on opposite sides of the machine base 1, one end of the waste trough 101 is open and the other end is closed, and a waste discharge device 11 is provided in each waste trough 101. Each waste discharge device 11 includes a spiral discharge member 111 and a rotary drive member 112, one end of the spiral discharge member 111 is passed through the closed section of the waste trough 101 and is rotatably connected to the machine base 1, and the rotary drive member 112 is provided on the machine base 1, and the rotary drive member 112 is used to drive the spiral discharge member 111 to rotate.

[0051] Reference Figure 1 and Figure 3 A front door assembly 13 is slidably provided on one side of the machine base 1 close to the double swing head device, and a foot pedal assembly 14 is also provided on one side of the machine base 1 close to the double swing head device.

[0052] The implementation principle of the above embodiment is as follows: the machining center uses the integral machine base 1 as a stable foundation, and drives the machining spindle 3 to move precisely in the two orthogonal directions of X, Z or Y, Z through the dual-axis motion device 2 with a reinforced cantilever structure. At the same time, the horizontal motion device is responsible for driving the offset double-swing head device with two rotational degrees of freedom of the A axis and the C axis to move in the horizontal direction to realize the machining of the workpiece at multiple angles. The machining spindle 3 completes the machining operation of the parts through high-speed rotation and precise feeding. During the machining process, the automatic tool changing device 4 can automatically select and replace the tool to improve the machining efficiency. The entire machining process is precisely coordinated by the control system to ensure that the movement of each device can complete the machining task efficiently and accurately. First, the design of the integral machine base 1 and the reinforced cantilever structure greatly improves the stability and reliability of the machining center, so that the weight of the workpiece will not have an adverse effect on the dynamic performance of the linear axis. Secondly, the moving parts are away from the cutting processing area, which effectively reduces the failure rate of the moving parts and extends the service life of the equipment. Finally, the machining center can achieve more efficient and higher-precision machining, meeting the dual requirements of machining accuracy and efficiency in the field of high-precision machining, and bringing better user experience and economic benefits.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A five-axis high-speed and high-precision machining center, characterized in that: include: A machine base (1), wherein the machine base (1) adopts an integral structure; A dual-axis motion device (2), wherein the dual-axis motion device (2) adopts a reinforced cantilever structure and is used to drive the processing spindle (3) to move in two orthogonal directions, X, Z or Y, Z; A horizontal moving device, used for driving the offset double swing head device to move in the horizontal direction; An offset double-swing head device, the offset double-swing head device is far away from the double-axis motion device (2), and the offset double-swing head device has two rotational degrees of freedom, the A axis and the C axis, and is used to realize the processing of the workpiece at multiple angles; The machining spindle (3) completes the machining operation of the parts through high-speed rotation and precise feeding; An automatic tool changing device (4) for automatically selecting and changing tools; The control system is used to coordinate the movement of each device to achieve efficient and high-precision processing.

2. A five-axis high-speed and high-precision machining center according to claim 1, characterized in that: The biaxial motion device (2) comprises a base (21), a sliding seat (22), a sliding drive mechanism, a lifting seat (23) and a lifting drive mechanism (24); the base (21) is fixed on the machine base (1); the sliding seat (22) and the base (21) are slidingly matched; the sliding drive mechanism is arranged on the base (21); the sliding drive mechanism is used to drive the sliding seat (22) to move in a horizontal direction; the lifting seat (23) and the sliding seat (22) are slidingly matched; the lifting drive mechanism (24) is arranged on the sliding seat (22) and is used to drive the lifting seat (23) to move up and down; and the machining spindle (3) is arranged on the lifting seat (23).

3. A five-axis high-speed and high-precision machining center according to claim 1, characterized in that: The automatic tool changing device (4) comprises a tool magazine mechanism (41) and an automatic tool changing mechanism (42), wherein the tool magazine mechanism (41) is used for storing and rotating tools, and the automatic tool changing mechanism (42) is used for selecting and replacing tools from the tool magazine mechanism (41) onto a machining spindle (3).

4. A five-axis high-speed and high-precision machining center according to claim 3, characterized in that: The tool magazine mechanism (41) comprises a support seat (411), a cutter disc (412) and a first rotating driving member (413); the cutter disc (412) is rotatably connected to the support seat (411); the first rotating driving member (413) is arranged on the support seat (411) and is used to drive the cutter disc (412) to rotate; and a plurality of automatic clamping members (414) for clamping a tool are arranged on the cutter disc (412) along a circumferential direction.

5. The five-axis high-speed and high-precision machining center according to claim 3 is characterized in that: The automatic tool changing mechanism (42) comprises a tool holder (421), a rotating rod (422), an assembly plate (423), and a second rotating driving member (424); the rotating rod (422) passes through the tool holder (421) and is rotatably connected to the tool holder (421); the second rotating driving member (424) is arranged on the tool holder (421) and is used to drive the rotating rod (422) to rotate; the rotating rod (422) is fixedly connected to the assembly plate (423); both ends of the assembly plate (423) are provided with a clamping groove (425) for placing a tool; and an abutting column for clamping a tool is arranged inside the clamping groove (425).

6. A five-axis high-speed and high-precision machining center according to claim 1, characterized in that: The offset double-swing head device comprises a sliding seat (5), a support (6), a turning table (7), a turning drive mechanism (8), a fixture table (9) and a rotation drive mechanism (10); the sliding seat (5) is slidably matched with the base; the support (6) is fixed to the upper surface of one end of the sliding seat (5); both ends of the turning table (7) are fixedly provided with turning shafts (71); one of the turning shafts (71) is rotationally connected to the support (6) through a bearing; the turning drive mechanism (8) is used to drive the other turning shaft (71) to rotate; the fixture table (9) is rotationally connected to the turning table (7); and the rotation drive mechanism (10) is arranged on the turning table (7) and is used to drive the fixture table (9) to rotate.

7. A five-axis high-speed and high-precision machining center according to claim 6, characterized in that: The flipping drive mechanism (8) comprises a mounting seat (81), a multi-stage gear assembly (82) and a drive assembly (83); the multi-stage gear assembly (82) and the drive assembly (83) are both located in a cavity opened in the mounting seat (81); the drive assembly (83) is used to drive the multi-stage gear assembly (82) to operate, thereby driving the flip table (7) to achieve flipping movement.

8. A five-axis high-speed and high-precision machining center according to claim 7, characterized in that: The multi-stage gear assembly (82) comprises a first gear set (821), a second gear set (822) and a driven gear (823); the first gear set (821) is meshed with the second gear set (822); the second gear set (822) is meshed with the driven gear (823); the driven gear (823) is sleeved on one of the flip shafts (71) and fixedly connected to the flip shaft (71); the driving assembly (83) is used to drive the first gear set (821) to operate.

9. A five-axis high-speed and high-precision machining center according to claim 8, characterized in that: The first gear set (821) comprises a driving shaft (8211) and a driving gear (8212), wherein the driving shaft (8211) is rotatably connected to the mounting seat (81), and the driving gear (8212) is sleeved on the driving shaft (8211) and fixedly connected to the driving shaft (8211); the second gear set (822) comprises a linkage shaft (8221), a first linkage gear (8222) and a second linkage gear (8223), wherein the linkage shaft (8221) is rotatably connected to the mounting seat (81), and the first linkage gear (8222) is sleeved on the linkage shaft (8221). The first linkage gear (8222) and the second linkage gear (8223) are respectively mounted on the linkage shaft (8221) and fixedly connected to the linkage shaft (8221); the second linkage gear (8223) is sleeved on the linkage shaft (8221) and fixedly connected to the linkage shaft (8221); the driving gear (8212) and the first linkage gear (8222) are meshed with each other; the first linkage gear (8222) and the second linkage gear (8223) are meshed with each other; the second linkage gear (8223) and the driven gear (823) are meshed with each other; and the driving assembly (83) is used to drive the driving shaft (8211) to rotate.

10. A five-axis high-speed and high-precision machining center according to claim 9, characterized in that: The driving assembly (83) comprises a driving motor (831), a driving wheel (832), a driven wheel (833) and a conveyor belt (834); the driving motor (831) is mounted on a mounting seat (81); the driving wheel (832) is sleeved on an output shaft of the driving motor (831) and is fixedly connected to the output shaft of the driving motor (831); the driven wheel (833) is sleeved on the driving shaft (8211) and is fixedly connected to the driving shaft (8211); and the conveyor belt (834) is arranged around the driving wheel (832) and the driven wheel (833).

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