Compact five-axis machining center

Abstract

The utility model discloses a compact five -axis machining center, include: main body crossbeam, first mobile subassembly, second mobile subassembly, third mobile subassembly, main shaft, rotation unit, workstation, main body cross along X axle is installed on the body, and first mobile subassembly's moving axle is along X axle direction arrangement, and first mobile subassembly installs on main body crossbeam top, second mobile subassembly's moving axle is along Y axle direction arrangement, and second mobile subassembly installs at main body crossbeam's bottom, third mobile subassembly's moving axle is along Z axle direction arrangement, and third mobile subassembly passes through first mobile subassembly and installs on main body crossbeam top, and main shaft is along Z axle arrangement, and installs on third mobile subassembly, rotation unit's rotation axle is along Y axle and Z axle direction arrangement respectively, and rotation unit rotatable installation second mobile subassembly's bottom, workstation installs rotation unit's output, and with rotation unit around Z axle direction rotation.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a compact five-axis machining center. Background Technology

[0002] The demand for machining small, complex products is driving the further development of multi-axis machining equipment. These machines are characterized by miniaturization, controlling size and weight through compact layout and lightweight structure, saving production space while ensuring machining flexibility and precision stability. Currently, most of these machines adopt gantry or moving beam structures, with the worktable typically mounted on the bed or similar structure.

[0003] However, current five-axis machining equipment generally suffers from large footprint and high overall weight, making it difficult to meet the space utilization requirements of precision manufacturing. Meanwhile, some equipment designed for miniaturization and structural simplification suffers from insufficient rigidity, leading to vibration and deformation during processing. This directly results in a decline in surface finish, failing to meet the high precision requirements for roughness and flatness of small, complex products, thus hindering its widespread application in precision manufacturing. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a compact five-axis machining center that can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: As one aspect of this application, a compact five-axis machining center is provided, comprising: The main crossbeam is mounted on the bed along the X-axis. A first moving component, wherein the moving axis of the first moving component is arranged along the X-axis direction, and the first moving component is mounted on the upper part of the main body beam; The second moving component has its moving axis arranged along the Y-axis direction, and the second moving component is installed at the bottom of the main crossbeam; The third moving component has its moving axis arranged along the Z-axis direction, and the third moving component is mounted on the upper part of the main body beam via the first moving component; A spindle, which is arranged along the Z-axis and mounted on a third moving assembly; A rotating unit, wherein the rotating shafts of the rotating unit are arranged along the Y-axis and Z-axis directions respectively, and the rotating unit is rotatably mounted on the bottom of the second moving component; A worktable is mounted on the output end of the rotating unit and rotates with the rotating unit around the Z-axis.

[0006] Preferably, the rotating unit includes: The B-axis rotation assembly has its rotation axis arranged along the Y-axis direction and is mounted on the bottom of the third moving assembly; the worktable is mounted on the B-axis rotation assembly. The C-axis rotation assembly has its rotation axis arranged along the Z-axis direction and is mounted on the B-axis rotation assembly, rotating with the B-axis rotation assembly around the Y-axis direction; the output end of the C-axis rotation assembly is connected to the worktable drive.

[0007] Preferably, the B-axis rotation assembly includes: B-axis support, the B-axis support being installed at the bottom of the second moving component; The B-axis rotation motor is mounted on the B-axis support. Harmonic reducer, wherein the input end of the harmonic reducer is connected to the output end of the B-axis rotating motor; The input end of the B-axis transmission unit is connected to the output end of the harmonic reducer; the B-axis transmission unit is rotatably mounted on the B-axis support. The B-axis rotating shaft has its axis arranged along the Y-axis direction and is connected to the output end of the B-axis transmission unit.

[0008] Preferably, the B-axis transmission unit includes: The first transmission wheel is connected to the output shaft of the B-axis rotating motor. The second drive wheel is connected to the first drive wheel by a synchronous belt. A drive shaft is rotatably mounted on the B-axis support; one end of the drive shaft is coaxially connected to the second drive wheel, and the other end of the drive shaft is coaxially connected to the B-axis rotation shaft.

[0009] Preferably, the C-axis rotation assembly includes: The C-axis support housing is mounted on the B-axis rotation axis and rotates with the B-axis rotation axis around the Y-axis; the worktable is mounted on the C-axis support housing; The C-axis direct drive rotary table is built into the C-axis support housing, and the output end of the C-axis direct drive rotary table is connected to the worktable via a transmission.

[0010] Preferably, the first moving component includes: An X-axis motor is mounted on the main crossbeam. An X-axis lead screw is arranged along the X-axis direction; one end of the X-axis lead screw is connected to the output end of the X-axis motor; a helical transmission component is mounted on the X-axis lead screw, and the helical transmission component is installed at the bottom of the third moving component. X-axis guide rail, which is installed on the upper part of the main body beam along the X-axis direction, and the X-axis guide rail is located on both sides of the X-axis lead screw; The X-axis slider is slidably connected to the X-axis guide rail and is mounted on the bottom of the third moving component.

[0011] Preferably, the second moving component includes: Y-axis base plate, the top surface of which is installed at the bottom of the main crossbeam; A Y-axis motor is mounted on the bottom surface of the Y-axis base plate; A Y-axis lead screw is arranged along the Y-axis direction; one end of the Y-axis lead screw is connected to the output end of the Y-axis motor; a helical transmission component is mounted on the Y-axis lead screw, and the helical transmission component is connected to the rotating unit. The Y-axis guide rail is mounted on the bottom surface of the Y-axis base plate and is located on both sides of the Y-axis lead screw. The Y-axis slider is slidably connected to the Y-axis guide rail and connected to the rotation unit.

[0012] Preferably, the third moving component includes: A slide, wherein the slide is movably connected to a first moving component along the X-axis direction; A skateboard, wherein the skateboard and the slide are movably connected along the Z-axis direction; Z-axis motor, the Z-axis motor being mounted on the slide plate; A Z-axis lead screw is arranged along the Z-axis direction; one end of the Z-axis lead screw is connected to the output end of the Z-axis motor; the other end of the Z-axis lead screw is rotatably connected to the slide plate; a helical drive component is mounted on the Z-axis lead screw, and the helical drive component is connected to the slide plate. Z-axis guide rail, which is mounted on the slide plate and located on both sides of the Z-axis lead screw; The Z-axis slider is slidably connected to the Z-axis guide rail and to the slide plate.

[0013] Preferably, the bed is a welding frame.

[0014] Preferred options also include: The tool magazine is installed at the bottom of the main crossbeam, located to the side of the second moving component, and parallel to the second moving component.

[0015] The beneficial effects of this utility model are as follows: In this application, the moving parts are centrally installed on the main crossbeam, making the whole machine more compact, reducing the overall footprint, and eliminating the need for a large layout space.

[0016] In this application, the precision requirements of the motion components are concentrated on the crossbeam and related transmission components. This not only reduces the scope of high-cost precision machining and lowers the overall manufacturing cost of the equipment, but also allows the bed to only bear the basic support function. Unlike traditional cast iron or marble beds, it does not need to meet the high-precision machining requirements, which greatly simplifies the processing technology of the bed.

[0017] In this application, the bed adopts a welded frame, which can meet the needs of flexible internal space layout and avoid the waste of space in external layout. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 and Figure 2 This is a schematic diagram of the structure of a compact five-axis machining center provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the second moving component; Figure 4 for Figure 3 A schematic diagram of a partial structure; Figure 5 A schematic diagram of the third moving component, the B-axis rotating component, and the C-axis rotating component; Figure 6 for Figure 5 A structural diagram from another angle; Figure 7 for Figure 5 A cross-sectional structural schematic diagram; Figure 8 for Figure 7 A magnified schematic diagram of a portion of region A in the middle; Figure 9 for Figure 5 Another cross-sectional structural diagram.

[0020] In the picture: 100. Main crossbeam; 200, First moving component; 210, X-axis motor; 220, X-axis lead screw; 230, Screw drive component; 240, Bearing housing; 250, X-axis guide rail; 260, X-axis slider; 300. Second moving component; 310. Y-axis base plate; 320. Y-axis motor; 330. Y-axis lead screw; 340. Y-axis guide rail; 350. Y-axis slider; 400, Spindle; 500. Third moving component; 510. Slide; 520. Slide plate; 530. Z-axis motor; 540. Z-axis lead screw; 550. Z-axis guide rail; 560. Z-axis slider; 600, B-axis rotating assembly; 610, B-axis support; 620, B-axis rotating motor; 630, first transmission wheel; 640, second transmission wheel; 650, synchronous belt; 660, transmission shaft; 670, B-axis rotating shaft; 700, C-axis support housing; 800, worktable; 900, Tool magazine. Detailed Implementation

[0021] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model are further described in detail below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] Figure 1 and Figure 2This is a schematic diagram of the structure of a compact five-axis machining center provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the second moving component; Figure 4 for Figure 3 A schematic diagram of a partial structure; Figure 5 A schematic diagram of the third moving component, the B-axis rotating component, and the C-axis rotating component; Figure 6 for Figure 5 A structural diagram from another angle; Figure 7 for Figure 5 A cross-sectional structural schematic diagram; Figure 8 for Figure 7 A magnified schematic diagram of a portion of region A in the middle; Figure 9 for Figure 5 Another cross-sectional view of the structure. The X-axis, Y-axis, and Z-axis can be seen in the figure.

[0025] like Figures 1 to 9 As shown, this embodiment provides a compact five-axis machining center, including: a main crossbeam 100, a first moving assembly 200, a second moving assembly 300, a third moving assembly 500, a spindle 400, a rotating unit, and a worktable 800; the main crossbeam 100 is mounted on the bed along the X-axis; the moving axis of the first moving assembly 200 is arranged along the X-axis direction, and the first moving assembly 200 is mounted on the upper part of the main crossbeam 100; the moving axis of the second moving assembly 300 is arranged along the Y-axis direction, and the second moving assembly 300 is mounted on the main crossbeam 400. The bottom of the main beam 100; the moving axis of the third moving component 500 is arranged along the Z-axis, and the third moving component 500 is mounted on the upper part of the main beam 100 through the first moving component 200; the main shaft 400 is arranged along the Z-axis and mounted on the third moving component 500; the rotating axis of the rotating unit is arranged along the Y-axis and Z-axis respectively, and the rotating unit is rotatably mounted on the bottom of the second moving component 300; the worktable 800 is mounted on the output end of the rotating unit and rotates around the Z-axis with the rotating unit.

[0026] In this embodiment, the moving parts are centrally installed on the main crossbeam, making the whole machine more compact, reducing the footprint of the whole machine, and eliminating the need for a large layout space.

[0027] In this embodiment, the precision requirements of the motion components are concentrated on the crossbeam and related transmission components. This not only reduces the scope of high-cost precision machining and lowers the overall manufacturing cost of the equipment, but also allows the bed to only bear the basic support function. Unlike traditional cast iron or marble beds, it does not need to meet the high-precision machining requirements, which greatly simplifies the processing technology of the bed.

[0028] In one embodiment of this application, the rotation unit includes a B-axis rotation assembly 600 and a C-axis rotation assembly. The rotation axis of the B-axis rotation assembly 600 is arranged along the Y-axis direction, and the B-axis rotation assembly 600 is mounted on the bottom of the third moving assembly 500; the worktable 800 is mounted on the B-axis rotation assembly 600; the rotation axis of the C-axis rotation assembly is arranged along the Z-axis direction, and is mounted on the B-axis rotation assembly 600 and rotates with the B-axis rotation assembly 600 around the Y-axis direction; the output end of the C-axis rotation assembly is connected to the worktable 800 in a transmission manner.

[0029] In this embodiment, the B-axis rotation component 600 can adjust the pitch angle of the worktable by rotating around the Y-axis, while the C-axis rotation component can achieve circumferential indexing or continuous rotation of the worktable by rotating around the Z-axis. This dual-axis combination allows for multi-angle and multi-directional attitude adjustment of the workpiece in three-dimensional space, overcoming the limitations of single-axis machining and covering the comprehensive machining needs of complex workpieces. The C-axis rotation component is integrated into the B-axis rotation component 600 and moves synchronously with it, ensuring that after the B-axis rotation component 600 is adjusted, the C-axis rotation component can still rotate accurately around the current Z-axis direction of the workpiece, avoiding rotational reference offset caused by attitude changes. Multi-face machining can be completed in a single clamping, reducing the number of workpiece clamping operations and minimizing the impact of clamping errors on machining accuracy.

[0030] A detailed description of the structure of the B-axis rotation assembly 600 is provided below. The B-axis rotation assembly 600 includes: a B-axis support 610, a B-axis rotation motor 620, a harmonic reducer, a B-axis transmission unit, and a B-axis rotation shaft 670. The B-axis support 610 is mounted on the bottom of the second moving assembly 300; the input end of the harmonic reducer is drive-connected to the output end of the B-axis rotation motor 620; the input end of the B-axis transmission unit is drive-connected to the output end of the harmonic reducer; the B-axis transmission unit is rotatably mounted on the B-axis support 610; the axis of the B-axis rotation shaft 670 is arranged along the Y-axis direction, and the B-axis rotation shaft 670 is drive-connected to the output end of the B-axis transmission unit.

[0031] The harmonic reducer configured in this embodiment has a high reduction ratio and can achieve high torque output. When the harmonic reducer is combined with the B-axis rotation motor 620, it can accurately convert the high-speed rotation of the motor into a low-speed, high-stability output, which greatly improves the control accuracy of the rotation angle of the B-axis rotation component 600.

[0032] In this embodiment, the B-axis support 610 serves as the installation reference for the overall structure and is directly and rigidly connected to the second moving component, providing a stable support foundation for the transmission components and preventing axial offset caused by support deformation during rotation, thus ensuring the axial accuracy of the B-axis rotating component 600 in the Y-axis direction.

[0033] Furthermore, the B-axis transmission unit includes: a first transmission wheel 630, a second transmission wheel 640, a synchronous belt 650, and a transmission shaft 660. The first transmission wheel 630 is drive-connected to the output shaft of the B-axis rotation motor 620; the second transmission wheel 640 and the first transmission wheel 630 are meshed and connected via the synchronous belt 650; the transmission shaft 660 is rotatably mounted on the B-axis support 610; one end of the transmission shaft 660 is coaxially connected to the second transmission wheel 640, and the other end of the transmission shaft 660 is coaxially connected to the B-axis rotation shaft 670.

[0034] In this embodiment, the two ends of the transmission shaft 660 are rigidly connected to the second transmission wheel 640 and the B-axis rotating shaft 670 respectively. The transmission shaft 660 is rotatably mounted on the B-axis support 610 through bearings, which reduces the elastic deformation of the transmission link, ensures that the torque transmission is lag-free, and can stably support the heavy-load rotation requirements of the worktable and workpiece.

[0035] In this embodiment, the 650-tooth meshing of the synchronous belt ensures no slippage, accurate transmission ratio, and reduces backlash error in gear transmission. Simultaneously, the synchronous belt helps to buffer and absorb minor vibrations from motor operation, further ensuring the smoothness of the rotation process and avoiding the impact of shocks on accuracy.

[0036] A detailed description of the C-axis rotation assembly's structure is provided. The C-axis rotation assembly includes: a C-axis support housing 700 and a C-axis direct-drive rotary table. The C-axis support housing 700 is mounted on the B-axis rotation shaft 670 and rotates with the B-axis rotation shaft 670 around the Y-axis. The worktable 800 is mounted on the C-axis support housing 700. The C-axis direct-drive rotary table is built into the C-axis support housing 700, and the output end of the C-axis direct-drive rotary table is connected to the worktable 800 via a transmission connection.

[0037] This embodiment features a C-axis direct-drive rotary table, eliminating intermediate transmission links and removing error sources from mechanical transmission. This allows for higher angular positioning accuracy and repeatability, making it well-suited for machining scenarios with stringent circumferential accuracy requirements. Furthermore, the C-axis direct-drive rotary table is integrated into the C-axis support housing 700, forming a closed or semi-closed protective space. This not only significantly reduces the overall size of the C-axis rotating assembly but also isolates the rotary table from contaminants in the machining area, extending its service life and helping to maintain accuracy stability.

[0038] In one embodiment, the first moving component 200 includes: an X-axis motor 210, an X-axis lead screw 220, a helical drive component 230, a bearing housing 240, an X-axis guide rail 250, and an X-axis slider 260. The X-axis motor 210 is mounted on the main crossbeam 100. The X-axis lead screw 220 is arranged along the X-axis direction; one end of the X-axis lead screw 220 is connected to the output end of the X-axis motor 210, and the other end of the X-axis lead screw is fitted with a bearing housing, which is mounted on the main crossbeam so that the X-axis lead screw is rotatably mounted on the main crossbeam. The helical drive component 230 is fitted on the X-axis lead screw 220, and the helical drive component 230 is mounted at the bottom of the third moving component 500. When the X-axis motor 210 drives the X-axis lead screw 220 to rotate, the helical drive component 230 converts the rotational motion of the X-axis lead screw 220 into linear motion along the X-axis direction through threaded engagement, thereby driving the third moving component 500 to move synchronously. The X-axis guide rail 250 is mounted on the upper part of the main crossbeam 100 along the X-axis direction, and the X-axis guide rail 250 is located on both sides of the X-axis lead screw 220; the X-axis slider 260 is slidably connected to the X-axis guide rail 250 and is mounted on the bottom of the third moving component 500. The X-axis guide rail 250 located on the upper part of the main crossbeam and the X-axis slider 260 located on the bottom of the third moving component 500 slide in cooperation, providing precise guidance for the movement process, constraining the movement direction of the third moving component, and ensuring that it moves linearly along the X-axis direction.

[0039] In one embodiment, the second moving component 300 includes: a Y-axis base plate 310, a Y-axis motor 320, a Y-axis lead screw 330, a Y-axis guide rail 340, and a Y-axis slider 350. The top surface of the Y-axis base plate 310 is mounted on the bottom of the main beam 100; the Y-axis motor 320 is mounted on the bottom surface of the Y-axis base plate 310; the Y-axis lead screw 330 is arranged along the Y-axis direction; one end of the Y-axis lead screw 330 is connected to the output end of the Y-axis motor 320, and the other end of the Y-axis lead screw is mounted on the bottom surface of the Y-axis base plate through a bearing seat. A helical transmission component 230 is fitted onto the Y-axis lead screw 330, and the helical transmission component 230 is connected to the rotating unit. When the Y-axis motor 320 drives the Y-axis lead screw 330 to rotate, the helical transmission component converts the rotational motion of the Y-axis lead screw 330 into linear motion along the Y-axis direction through threaded engagement, thereby driving the rotating unit to move synchronously. The Y-axis guide rail 340 is mounted on the bottom surface of the Y-axis base plate 310, and the Y-axis guide rail 340 is located on both sides of the Y-axis lead screw 330; the Y-axis slider 350 is slidably connected to the Y-axis guide rail 340 and connected to the rotating unit, providing precise guidance for the movement process, constraining the movement direction of the rotating unit, and ensuring that it moves linearly along the Y-axis.

[0040] In one embodiment, the third moving component 500 includes: a slide 510, a slide plate 520, a Z-axis motor 530, a Z-axis lead screw 540, a Z-axis guide rail 550, and a Z-axis slider 560. The slide 510 is movably connected to the first moving component 200 along the X-axis; the Z-axis guide rail 550 is mounted on the slide plate 520 and is located on both sides of the Z-axis lead screw 540; the Z-axis slider 560 is slidably connected to the Z-axis guide rail 550 and connected to the slide 510, thereby realizing the movable connection between the slide plate 520 and the slide 510 along the Z-axis.

[0041] The Z-axis motor 530 is mounted on the slide plate 520; the Z-axis lead screw 540 is arranged along the Z-axis direction; one end of the Z-axis lead screw 540 is connected to the output end of the Z-axis motor 530; the other end of the Z-axis lead screw 540 is rotatably connected to the slide plate 520; a helical transmission component 230 is mounted on the Z-axis lead screw 540, and the helical transmission component 230 is connected to the slide plate 510.

[0042] In this embodiment, the Z-axis motor 530, Z-axis lead screw 540, and Z-axis guide rail 550 are all fixed on the slide plate. The slide plate only carries the helical transmission component 230 and the Z-axis slider 560, thus avoiding the problems of size redundancy and excessive weight.

[0043] The two ends of the Z-axis lead screw 540 are fixed on the slide plate and remain stationary with the slide plate. Only the screw drive component 230 moves with the slide plate, which greatly shortens the necessary length of the slide plate in the Z-axis direction. There is no need to reserve space for the extension of the Z-axis lead screw 540, which is conducive to shortening the length of the slide plate in the Z-axis direction and making the moving parts lightweight.

[0044] In one embodiment, the bed frame is a welded frame. This embodiment uses a welded frame for the bed frame, which allows for flexible internal space layout and avoids wasting space with externally mounted designs.

[0045] In one embodiment, the system further includes a tool magazine 900, which is installed at the bottom of the main crossbeam 100. The tool magazine 900 is located to the side of the second moving component 300 and is parallel to the second moving component 300. In this embodiment, when the rotating unit or spindle assembly changes tools, it can move directly to the tool magazine changing position along the Y-axis without requiring complex multi-axis linkage adjustments. The parallel layout shortens the tool changing path and makes the action more direct, reducing idle travel time during tool changing, which significantly improves overall production efficiency, especially in batch processing. The tool magazine arrangement in this embodiment maximizes space utilization and can be adapted to a compact overall machine layout.

[0046] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0049] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A compact five-axis machining center, characterized in that, include: The main crossbeam (100) is mounted on the bed along the X-axis; A first moving component (200) has its moving axis arranged along the X-axis direction, and the first moving component (200) is mounted on the upper part of the main crossbeam (100); The second moving component (300) has its moving axis arranged along the Y-axis direction and is mounted on the bottom of the main beam (100). The third moving component (500) has its moving axis arranged along the Z-axis direction, and the third moving component (500) is mounted on the upper part of the main body beam (100) via the first moving component (200); A spindle (400) is arranged along the Z-axis and mounted on a third moving assembly (500); A rotating unit, wherein the rotating shafts of the rotating unit are arranged along the Y-axis and Z-axis directions respectively, and the rotating unit is rotatably mounted on the bottom of the second moving component (300); A worktable (800) is installed at the output end of the rotating unit and rotates with the rotating unit around the Z-axis.

2. The compact five-axis machining center according to claim 1, characterized in that, The rotating unit includes: B-axis rotation assembly (600), the rotation axis of the B-axis rotation assembly (600) is arranged along the Y-axis direction, and the B-axis rotation assembly (600) is installed at the bottom of the third moving assembly (500); the worktable (800) is installed on the B-axis rotation assembly (600); The C-axis rotating assembly has its rotating axis arranged along the Z-axis direction and is mounted on the B-axis rotating assembly (600) and rotates with the B-axis rotating assembly (600) around the Y-axis direction; the output end of the C-axis rotating assembly is connected to the worktable (800) for transmission.

3. The compact five-axis machining center according to claim 2, characterized in that, The B-axis rotation assembly (600) includes: B-axis support (610), said B-axis support (610) is mounted on the bottom of the second moving assembly (300); The B-axis rotation motor (620) is mounted on the B-axis support (610); Harmonic reducer, wherein the input end of the harmonic reducer is connected to the output end of the B-axis rotating motor (620); The input end of the B-axis transmission unit is connected to the output end of the harmonic reducer; the B-axis transmission unit is rotatably mounted on the B-axis support (610). B-axis rotating shaft (670), the axis of which is arranged along the Y-axis direction, and the B-axis rotating shaft (670) is connected to the output end of the B-axis transmission unit.

4. The compact five-axis machining center according to claim 3, characterized in that, The B-axis drive unit includes: The first transmission wheel (630) is connected to the output shaft of the B-axis rotating motor (620). The second transmission wheel (640) and the first transmission wheel (630) are connected by a timing belt (650); A drive shaft (660) is rotatably mounted on the B-axis support (610); one end of the drive shaft (660) is coaxially connected to the second drive wheel (640), and the other end of the drive shaft (660) is coaxially connected to the B-axis rotating shaft (670).

5. The compact five-axis machining center according to claim 3, characterized in that, The C-axis rotation assembly includes: C-axis support housing (700), which is mounted on B-axis rotation shaft (670) and rotates with B-axis rotation shaft (670) about Y-axis; the worktable (800) is mounted on C-axis support housing (700); The C-axis direct drive rotary table is built into the C-axis support housing (700), and the output end of the C-axis direct drive rotary table is connected to the worktable (800) in a transmission manner.

6. The compact five-axis machining center according to claim 1, characterized in that, The first moving component (200) includes: X-axis motor (210), the X-axis motor (210) is mounted on the main crossbeam (100); X-axis lead screw (220), the X-axis lead screw (220) is arranged along the X-axis direction; one end of the X-axis lead screw (220) is connected to the output end of the X-axis motor (210); a helical transmission component (230) is mounted on the X-axis lead screw (220), and the helical transmission component (230) is installed at the bottom of the third moving component (500); X-axis guide rail (250) is installed on the upper part of the main crossbeam (100) along the X-axis direction, and the X-axis guide rail (250) is located on both sides of the X-axis lead screw (220); X-axis slider (260), which is slidably connected to the X-axis guide rail (250) and is installed at the bottom of the third moving component (500).

7. The compact five-axis machining center according to claim 1, characterized in that, The second moving component (300) includes: Y-axis base plate (310), the top surface of which is installed on the bottom of the main crossbeam (100); Y-axis motor (320), the Y-axis motor (320) is mounted on the bottom surface of the Y-axis base plate (310); Y-axis lead screw (330), the Y-axis lead screw (330) is arranged along the Y-axis direction; one end of the Y-axis lead screw (330) is connected to the output end of the Y-axis motor (320); a helical transmission component (230) is mounted on the Y-axis lead screw (330), and the helical transmission component (230) is connected to the rotating unit; Y-axis guide rail (340), the Y-axis guide rail (340) is installed on the bottom surface of the Y-axis base plate (310), and the Y-axis guide rail (340) is located on both sides of the Y-axis lead screw (330); Y-axis slider (350), which is slidably connected to the Y-axis guide rail (340) and connected to the rotation unit.

8. The compact five-axis machining center according to claim 1, characterized in that, The third moving component (500) includes: A slide (510) is movably connected to a first moving assembly (200) along the X-axis direction; A sliding plate (520) is movably connected to the slide (510) along the Z-axis direction; Z-axis motor (530), said Z-axis motor (530) is mounted on said slide plate (520); Z-axis lead screw (540), the Z-axis lead screw (540) is arranged along the Z-axis direction; one end of the Z-axis lead screw (540) is connected to the output end of the Z-axis motor (530); the other end of the Z-axis lead screw (540) is rotatably connected to the slide plate (520); a helical drive component (230) is mounted on the Z-axis lead screw (540), and the helical drive component (230) is connected to the slide plate (510); Z-axis guide rail (550), the Z-axis guide rail (550) is mounted on the slide plate (520), and the Z-axis guide rail (550) is located on both sides of the Z-axis lead screw (540); Z-axis slider (560), which is slidably connected to the Z-axis guide rail (550) and connected to the slide plate (510).

9. The compact five-axis machining center according to any one of claims 1 to 8, characterized in that, The bed is a welded frame.

10. The compact five-axis machining center according to any one of claims 1 to 8, characterized in that, Also includes: Tool magazine (900) is installed at the bottom of the main beam (100), the tool magazine (900) is located on the side of the second moving component (300), and the tool magazine (900) is parallel to the second moving component (300).

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