Five-sided machining table

Abstract

The application relates to a five-surface machining workbench which comprises a base, a sliding base sliding along a Y axis on the base, a mounting base rotating along a B axis on the sliding base, a work disc capable of rotating along an A axis relative to the mounting base, a Y axis moving mechanism for driving the sliding base to move along the Y axis direction, a B axis rotating mechanism mounted on the sliding base and driving the mounting base to rotate, and an A axis rotating mechanism for driving the work disc to rotate, wherein the B axis rotating mechanism comprises an outer transmission shaft arranged in parallel to the Y axis, a B power element driving the outer transmission shaft to rotate, the outer transmission shaft is rotationally connected to the sliding base and transmits the torque of the B power element to the mounting base to drive the mounting base to rotate, and the B power element is mounted on the sliding base; the A axis rotating mechanism comprises an inner transmission shaft for driving the work disc to rotate and an A power element driving the inner transmission shaft to rotate, the inner transmission shaft is arranged in the outer transmission shaft and coaxially arranged with the outer transmission shaft, the inner transmission shaft can rotate relative to the outer transmission shaft, and the A power element is mounted on the sliding base. The application has the effects of compact structure, one-time clamping, five-surface full machining, high efficiency and high precision, powerful function, one machine replacing multiple machines, reduced energy consumption and improved operation economy of the machine tool.

Description

Technical Field

[0001] This application relates to the field of CNC machine tools, and in particular to a five-sided machining table. Background Technology

[0002] A five-sided machining table is an advanced CNC machine tool whose powerful machining capability allows for the machining of all five sides of a workpiece in a single clamping operation, including the top and four sides. This machining method significantly improves machining efficiency, reduces the number of workpiece clamping and transfer operations, and thus enhances machining accuracy and consistency. The five-sided machining table is an important component of a five-sided machining platform.

[0003] Currently, Chinese invention patent application CN115194533A discloses in detail a five-sided machining worktable. The five-sided machining worktable includes a base, an X-axis motion structure, a Y-axis motion structure, a Z-axis motion structure, an A-axis motion structure, and a B-axis motion structure. The X-axis motion structure is mounted on the base, the Y-axis motion structure is mounted on the X-axis motion structure, the horizontally rotatable A-axis motion structure is mounted on the Y-axis motion structure, and the vertically rotatable B-axis motion structure is mounted on the A-axis motion structure. The rotating end of the B-axis motion structure is equipped with a suction cup for adsorbing a tray, which is used to fix the workpiece.

[0004] The A-axis motion structure includes an A-axis torque motor and an A-axis rotary shaft. The A-axis torque motor is fixed inside the Y-axis sliding seat, driving the A-axis torque motor, which in turn drives the B-axis motion structure to rotate horizontally through the rotation of the A-axis rotary shaft.

[0005] The B-axis motion structure includes a B-axis rotary hydraulic cylinder and a B-axis rotary shaft. The B-axis rotary hydraulic cylinder is fixed on the A-axis rotary shaft. Driving the B-axis rotary hydraulic cylinder causes the suction cup with the tray attached to it to rotate through the rotation of the B-axis rotary shaft.

[0006] However, in the above technical solution, the B-axis motion structure and its power source—the B-axis rotary hydraulic cylinder—are both mounted on the A-axis rotation shaft. This design results in a relatively heavy overall mass of the entire B-axis motion structure, which in turn increases the rotational inertia that the A-axis needs to overcome during the drive process. Therefore, the A-axis needs to withstand a large torque during rotation, which not only increases energy consumption but also affects the stability and service life of the entire worktable.

[0007] To address the aforementioned issues, this application proposes a five-sided machining worktable. Summary of the Invention

[0008] To reduce the torque on bearing A and lower energy consumption, this application provides a five-sided machining worktable, employing the following technical solution: A five-sided machining workbench includes: Base; The slide block is slidably connected to the mounting base along the Y-axis direction; The mounting base is rotatably connected to one end of the slide and rotates along axis B. The worktable is mounted on the mounting base and can rotate relative to the mounting base along the A-axis; The Y-axis moving mechanism is mounted on the mounting base and is used to drive the slide to move along the Y-axis direction. B-axis rotation mechanism, mounted on slide and driving mounting base to rotate along B-axis; and The A-axis rotation mechanism is used to drive the working disc to rotate along the A-axis. The B-axis rotation mechanism includes an external drive shaft arranged parallel to the Y-axis and a B-power component that drives the external drive shaft to rotate. The external drive shaft is rotatably connected to the slide and transmits the torque of the B-power component to the mounting base to drive the mounting base to rotate. The B-power component is mounted on the slide. The A-axis rotation mechanism includes an inner drive shaft for driving the working disc to rotate and an A-power component for driving the inner drive shaft to rotate. The inner drive shaft passes through the outer drive shaft and the two are coaxially arranged. The inner drive shaft can rotate relative to the outer drive shaft. The A-power component is mounted on a slide.

[0009] By adopting the above technical solution, power component A drives the internal transmission shaft to rotate, thereby causing the worktable to rotate along axis A; power component B drives the external transmission shaft to rotate, enabling the mounting base to rotate along axis B. Because the worktable and mounting base are rotatably connected, the worktable can achieve compound rotation around axes B and A, allowing the machine tool to perform comprehensive machining on all five surfaces of the worktable. Both power components A and B are cleverly mounted on the slide. This design not only significantly reduces the overall weight of the mounting base, but also effectively reduces the torque borne by axis A through the precise layout of the B-axis motion structure, further reducing energy consumption and improving the machine tool's operating economy. In addition, the overall structure of the mounting base is more compact, occupying significantly less space and providing a larger range of motion for the cutting tool, greatly facilitating machining operations.

[0010] Optionally, the A-axis rotation mechanism further includes a bevel gear set for transmitting the torque of the A-axis power component to the inner transmission shaft, the bevel gear set comprising: The outer casing is rotatably connected to the slide block with its rotation axis parallel to the Y-axis, and the outer casing is uniformly provided with teeth along the circumferential direction of the rotation axis; The active bevel gear is coaxially rotatably connected to the housing, and the power component A drives the active bevel gear to rotate. Driven bevel gear, coaxially rotatably connected to the housing; A planetary bevel gear is rotatably connected to the housing, and both the driven bevel gear and the driving bevel gear mesh with the planetary bevel gear. An inner shaft gear is coaxially and fixedly connected to an inner transmission shaft, and the inner shaft gear meshes with the teeth of the outer casing; The B-axis rotation mechanism further includes a spur gear set that transmits the torque of the B-power component to the external drive shaft. The spur gear set includes a linkage gear rotatably connected to the slide and an external shaft gear coaxially fixedly connected to the external drive shaft. The external shaft gear meshes with the linkage gear. The linkage gear and the driven bevel gear are fixed coaxially, and the transmission ratio between the linkage gear and the outer shaft gear is 1:n, while the transmission ratio between the teeth of the outer casing and the inner shaft gear is 2:n.

[0011] By adopting the above technical solution, when the A-axis (working disc) needs to rotate, the A power component drives the active bevel gear to rotate, while the driven bevel gear does not rotate (the B power component does not work). As a result, the planetary bevel gear revolves and drives the outer casing to rotate. The inner shaft gear meshing with the teeth of the outer casing rotates synchronously, thereby driving the inner transmission shaft to rotate, thus realizing the rotation of the A-axis (working disc).

[0012] When the B-axis (mounting base) needs to rotate, the B-power component drives the outer shaft gear to rotate via the linkage gear, thereby driving the outer drive shaft to rotate, thus realizing the rotation of the B-axis (mounting base). Simultaneously, the linkage gear, while driving the outer shaft gear, also drives the driven bevel gear to rotate, thereby driving the housing to rotate, which in turn drives the inner drive shaft. The transmission ratio between the linkage gear and the outer shaft gear is 1:n, and the transmission ratio between the housing gear and the inner shaft gear is 2:n. This ensures that the inner and outer drive shafts rotate at the same speed. The purpose is to keep the inner drive shaft relatively stationary with respect to the mounting base, preventing the working disc from rotating when the mounting base rotates.

[0013] Optionally, a first bevel gear is coaxially fixedly connected to one end of the inner drive shaft, and a second bevel gear is rotatably connected to the mounting base. The second bevel gear rotates parallel to the A-axis, and a first A-axis gear is coaxially fixedly connected to the second bevel gear. The first A-axis gear drives the working disc to rotate.

[0014] Optionally, it also includes a B-axis locking mechanism for limiting the rotation of the mounting base. The B-axis locking mechanism includes a first gear plate fixedly connected to the slide and a second gear plate fixedly connected to the mounting base. Both the first and second gear plates are coaxially arranged with the B-axis, and the second gear plate is arranged facing the first gear plate. The external drive shaft is slidably disposed with the slide along the axial direction. The end of the slide away from the mounting base is connected to a first hydraulic power component that drives the external drive shaft to move axially. The axial movement of the external drive shaft relative to the slide base enables the first and second gear plates to mesh or separate. When the first and second gear plates are meshed, the mounting base cannot rotate relative to the slide base.

[0015] By adopting the above technical solution, when the mounting base needs to rotate, the first hydraulic power component drives the external power shaft to move axially, the first gear plate and the second gear plate separate, and then the B-axis rotation mechanism drives the mounting base to rotate; during processing, the first hydraulic power component drives the external power shaft to move axially, the first gear plate and the second gear plate mesh, and the mounting base cannot rotate relative to the slide, thus achieving B-axis locking.

[0016] Optionally, the mounting base includes a base body and a rotating seat that rotates along the A-axis. The base body is fixedly connected to a rotating sleeve, and the rotating seat passes through the rotating sleeve and the two are rotatably connected. The rotating seat is coaxially fixedly connected to an external gear ring, and the base body is rotatably connected to a second A-axis gear that meshes with a first A-axis gear. The second A-axis gear meshes with the external gear ring.

[0017] By adopting the above technical solution, the gear ring drive can increase the transmission ratio, providing more precise angles for workpiece machining.

[0018] Optionally, the mounting base is provided with an A-axis locking mechanism to restrict the rotation of the rotating seat. The A-axis locking mechanism includes a third gear disk fixedly connected to the rotating seat and a fourth gear disk fixedly connected to the seat body. The third and fourth gear disks are both coaxially arranged with the A-axis and face each other. The rotating seat is slidably arranged with the rotating sleeve along the axial direction. The rotating sleeve is provided with a second hydraulic power component that drives the rotating seat to move axially. The axial movement of the rotating seat relative to the rotating sleeve enables the third and fourth gear disks to engage or disengage. When the third and fourth gear disks are engaged, the rotating seat cannot rotate relative to the seat body.

[0019] By adopting the above technical solution, the second hydraulic power component drives the rotating seat to move axially, the third and fourth gear discs separate, and the A-axis rotation mechanism drives the rotating seat to rotate, thereby realizing the rotation of the workpiece disc. During processing, the second hydraulic power component drives the rotating seat to move axially, the third and fourth gear discs mesh, and the workpiece disc cannot rotate relative to the seat body, thus achieving A-axis locking.

[0020] Optionally, the rotating seat is provided with a locking mechanism for locking the working disc. The locking mechanism includes a sliding shaft slidably connected to the rotating seat along the A-axis and a T-block fixedly connected to one end of the sliding shaft. The bottom of the working disc is provided with a T-slot adapted to the T-block. The working disc moves in a direction perpendicular to the A-axis so that the T-block is inserted into the T-slot. A plurality of positioning blocks are fixedly connected to the side of the rotating seat near the working disc. A plurality of positioning slots adapted to the positioning blocks are opened on the bottom of the working disc. The rotating seat is provided with a third hydraulic power component for driving the sliding shaft to move axially along the A-axis.

[0021] By adopting the above technical solution, the working disc is inserted into the T-block through the T-slot, and the third hydraulic power component drives the sliding shaft to move axially, so that the working disc moves towards the rotating seat, thereby placing the positioning block in the positioning slot, restricting the circumferential rotation of the working disc and the rotating seat, and locking the working disc.

[0022] Optionally, the base includes a connecting part for fixed connection to the external drive shaft and a mounting part for mounting the rotating sleeve. The mounting part is eccentrically fixed to the connecting part and the two are integrally formed. A bottom cover is fixedly connected to one end of the mounting part and a top cover is fixedly connected to the other end. The mounting part has a mounting hole. The rotating sleeve passes through the mounting hole and is fixedly connected to the mounting part. The top cover has an opening that mates with the rotating base. A sealing gap is formed between the end of the top cover away from the mounting part and the working disc.

[0023] By adopting the above technical solution, the bottom cover and the top cover are used to cover the rotating seat and the rotating sleeve to block the cutting fluid and chips.

[0024] Optionally, it also includes a fluid delivery structure for delivering pressurized liquid and / or pressurized gas within the mounting base. The fluid delivery structure includes a first rotary communication structure and a delivery channel communicating with the interior of the mounting base. The first rotary communication structure includes a first fixed communication block fixedly connected to the slide and a first rotating communication block fixedly connected to the external drive shaft. The first rotating communication block is coaxially disposed within the first fixed communication block and the two can rotate relative to each other. A first channel communicating with the delivery channel is formed within the first rotating communication block. A first communicating annular groove communicating with the first channel is coaxially formed on the outer wall of the first rotating communication block. A first communicating port communicating with the first communicating annular groove is formed on the first fixed communication block.

[0025] By adopting the above technical solution, the pressure fluid flows into the mounting base through the fluid delivery structure via the first connection port to an external pressure oil source or pressure air source, thereby providing power and effectively avoiding the problem of tangled connecting pipes.

[0026] Optionally, there are six of each of the first flow channel, the first connecting annular groove, and the first connecting port, and they correspond one-to-one. There are six conveying flow channels, and they correspond one-to-one with the six first flow channels. The two chambers of the second hydraulic power component are connected to one of the conveying flow channels, and the two chambers of the third hydraulic power component are connected to one of the conveying flow channels. The other two conveying flow channels are used to convey compressed gas, one of which is connected to the chamber formed by the mounting part and the bottom cover, and the other is connected to the chamber formed between the working plate and the top cover.

[0027] By adopting the above technical solution, a fluid delivery structure is used to supply pressurized fluid to the second and third hydraulic power components, enabling the locking mechanism and A-axis locking structure to operate. Compressed gas is introduced into the cavity inside the mounting base to achieve an air seal, effectively preventing cutting fluid and chips from entering the mounting base and improving the reliability of the equipment.

[0028] In summary, this application includes at least one of the following beneficial technical effects: 1. Power component A drives the internal transmission shaft to rotate, causing the worktable to rotate along axis A; simultaneously, power component B drives the external transmission shaft to rotate, causing the mounting base to rotate along axis B. Because the worktable and the mounting base are rotatably connected, the worktable can achieve compound rotation around axes B and A, meeting the machine tool's comprehensive machining needs for all five sides of the worktable.

[0029] 2. The power component A drives the worktable to rotate via an inner drive shaft coaxially mounted within the outer drive shaft. Its installation location is chosen on the slide rather than the mounting base, effectively reducing the weight of the mounting base and thus lowering the torque required to drive axis B, resulting in lower energy consumption. Furthermore, the overall structure of the mounting base is more compact, occupying less space and providing a greater range of motion for the cutting tool, making machining operations more convenient.

[0030] 3. When the B-axis (mounting base) needs to rotate, the B-power component drives the outer shaft gear to rotate via the linkage gear, thereby driving the outer drive shaft to rotate, thus realizing the rotation of the B-axis (mounting base). Simultaneously, the linkage gear, while driving the outer shaft gear, also drives the driven bevel gear to rotate, thereby driving the outer casing to rotate, and further driving the inner drive shaft to rotate. Through a carefully designed transmission ratio (1:n between the linkage gear and the outer shaft gear, and 2:n between the outer casing gear and the inner shaft gear), the inner and outer drive shafts rotate at the same speed. The purpose is to keep the inner drive shaft relatively stationary with respect to the mounting base, thus preventing the working disc from rotating when the mounting base rotates.

[0031] 4. It is equipped with a B-axis locking mechanism to limit the rotation of the mounting base and an A-axis locking mechanism to limit the rotation of the rotating base. By using the A-axis locking mechanism and the B-axis locking mechanism to lock the degrees of freedom of the A-axis and B-axis, the workpiece is more stable during processing and the processing accuracy is improved.

[0032] 5. A fluid delivery structure is used to transport hydraulic oil from one end of the external drive shaft to the mounting base at the other end, which provides power to the second hydraulic power unit. This avoids the influence of exposed pipes on the rotation of the mounting base and provides more space for machining.

[0033] 6. The compressed air is delivered from one end of the external drive shaft to the mounting base at the other end by a fluid delivery structure to form an air seal, which effectively prevents cutting fluid and chips from entering the mounting base and improves the reliability of the equipment. Attached Figure Description

[0034] Figure 1 This is a schematic diagram illustrating the overall structure of the workbench in an embodiment of this application.

[0035] Figure 2 This is a schematic diagram illustrating the internal structure of the workbench in an embodiment of this application.

[0036] Figure 3 This is a schematic diagram illustrating the rotation mechanism of axes A and B in an embodiment of this application.

[0037] Figure 4 This is a cross-sectional view of the mounting base used to illustrate an embodiment of this application.

[0038] Figure 5 This is a schematic diagram of the bottom of the mounting base used in this application embodiment. Explanation of reference numerals in the attached drawings: 100, base; 110, slide; 120, working plate; 122, positioning groove; 200. Mounting base; 210. Base body; 211. Connecting part; 212. Mounting part; 213. Second flow channel; 220. Rotating seat; 221. Connecting shaft; 222. Positioning block; 223. Third flow channel; 230. Rotating sleeve; 240. External gear ring; 241. Second A-axis gear; 251. Bottom cover; 252. Top cover; 300. Locking mechanism; 310. Sliding shaft; 320. T-block; 331. Third piston; 410. First rotary connecting structure; 411. First fixed connecting block; 412. First rotating connecting block; 413. First connecting port; 414. First connecting annular groove; 415. First flow channel; 420. Conveying channel; 430. Second rotary connecting structure; 431. Second fixed connecting block; 432. Second connecting port; 433. Second limiting ring; 434. Second connecting ring groove; 500. Y-axis moving mechanism; 501. Lead screw; 502. Slider; 600. B-axis rotation mechanism; 610. External drive shaft; 620. B-power component; 631. First spur gear; 632. Second spur gear; 633. Third spur gear; 634. Fourth spur gear; 635. Linkage gear; 636. External shaft gear; 700, B-axis locking mechanism; 710, first gear plate; 720, second gear plate; 730, first hydraulic power component; 731, first cylinder; 732, first piston; 800. A-axis rotation mechanism; 810. Inner drive shaft; 811. First bevel gear; 812. Second bevel gear; 813. First A-axis gear; 820. A-axis power component; 830. Bevel gear set; 831. Housing; 832. Driving bevel gear; 833. Driven bevel gear; 834. Planetary bevel gear; 835. Inner shaft gear; 836. Fifth gear; 837. Sixth gear; 900, A-axis locking mechanism; 910, third gear plate; 920, fourth gear plate; 930, second hydraulic power component; 931, second piston; 932, second end cover; 933, first limit ring. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0040] This application discloses a five-sided machining worktable. (Refer to...) Figure 1 The processing workbench includes: The base 100 is slidably connected to the machine tool frame along the X-axis (vertical direction), and the vertical movement of the base 100 is driven by a lead screw pair; The slide 110 is a horizontally arranged cylindrical structure. The slide 110 passes through the base 100 and slides along the Y-axis direction to be connected to the base 100. Mounting base 200 is disposed at one end of slide 110 and can rotate relative to slide 110 about axis B; The worktable 120 is mounted on the mounting base 200 and can rotate about the A-axis relative to the mounting base 200. The worktable 120 is used to mount the workpiece to be processed, and can also be used to mount a fixture or tooling that has the workpiece fixed on it. Y-axis moving mechanism 500, mounted on mounting base 200, is used to drive slide 110 to move along the Y-axis direction (see reference). Figure 2 ); The B-axis mechanism is used to drive the mounting base 200 to rotate around the B-axis and to lock the mounting base 200 to the slide 110 to limit the rotation of the mounting base 200; and The A-axis mechanism is used to drive the work plate 120 to rotate around the A-axis and to lock the work plate 120 to the mounting base 200 to limit the rotation of the work plate 120.

[0041] Reference Figure 2 The Y-axis moving mechanism 500 includes a lead screw 501 rotatably connected to the base 100, a slider 502 threadedly connected to the lead screw 501, and a hydraulic motor for driving the lead screw 501 to rotate. The lead screw 501 is parallel to the Y-axis and located below the slide block 110. The slider 502 is fixedly connected to the bottom of the slide block 110 by bolts. The hydraulic motor is fixedly connected to the base 100 by bolts.

[0042] Reference Figure 2 The B-axis mechanism includes a B-axis rotation mechanism 600 for driving the mounting base 200 to rotate along the B-axis.

[0043] The B-axis rotation mechanism 600 includes an outer drive shaft 610 arranged parallel to the Y-axis and a B-power component 620 for driving the outer drive shaft 610 to rotate. In this embodiment, the B-axis is the rotation axis of the outer drive shaft 610. The outer drive shaft 610 passes through the slide 110 and the two are rotatably connected. One end of the outer drive shaft 610 is fixedly connected to the mounting base 200. The B-power component 620 drives the outer drive shaft 610 to rotate, thereby driving the mounting base 200 to rotate along the B-axis.

[0044] The B-axis power component 620 is a hydraulic motor and is bolted to the slide 110. To improve the transmission ratio, the B-axis rotation mechanism 600 also includes a spur gear set. The spur gear set is used to transmit the torque of the B-axis power component 620 to the outer drive shaft 610.

[0045] Reference Figure 3 The spur gear set includes a first spur gear 631, a second spur gear 632, a third spur gear 633, a fourth spur gear 634, a linkage gear 635, and an outer shaft gear 636.

[0046] The first spur gear 631 is coaxially and fixedly connected to the output shaft of power component B 620.

[0047] The second spur gear 632 and the third spur gear 633 are rotatably connected to the slide 110. The second spur gear 632 has more teeth than the third spur gear 633, and the two are coaxially fixedly connected. The second spur gear 632 meshes with the first spur gear 631.

[0048] The fourth spur gear 634 and the linkage gear 635 are also rotatably connected to the slide 110. The fourth spur gear 634 has more teeth than the linkage gear 635, and the two are coaxially fixedly connected. The fourth spur gear 634 meshes with the third spur gear 633. The linkage gear 635 has fewer teeth than the external shaft gear 636, and the two mesh. The external shaft gear 636 is coaxially fixedly connected to the external drive shaft 610 by bolts, and is located at the end of the external drive shaft 610 away from the mounting base 200.

[0049] The spur gear set transmits the torque of the B power component 620 to the outer drive shaft 610 through multi-stage reduction, driving the outer drive shaft 610 to rotate, which in turn drives the mounting base 200 to rotate around the B axis.

[0050] Reference Figure 2 The B-axis mechanism also includes a B-axis locking mechanism 700 that restricts the rotation of the mounting base 200.

[0051] The B-axis locking mechanism 700 includes a first gear plate 710 and a second gear plate 720. The first gear plate 710 is fixedly connected to one end of the slide block 110, and the second gear plate 720 is fixedly connected to the mounting base 200. The first gear plate 710 and the second gear plate 720 are coaxially arranged with the external drive shaft 610, and the second gear plate 720 and the first gear plate 710 are arranged facing each other.

[0052] The external drive shaft 610 is axially movable relative to the slide 110. The axial movement of the external drive shaft drives the mounting base 200 to move along the Y-axis. The axial movement of the mounting base 200 drives the second gear disc 720, enabling the first gear disc 710 and the second gear disc 720 to engage or disengage. When the first gear disc 710 and the second gear disc 720 are engaged, the mounting base 200 cannot rotate relative to the slide 110.

[0053] Reference Figure 3 The B-axis locking mechanism 700 also includes a first hydraulic power component 730 for driving the axial movement of the external power shaft.

[0054] The first hydraulic power component 730 includes a first cylinder 731 fixedly connected to the slide block 110. The first cylinder 731 has a chamber. The first hydraulic power component 730 also includes a first piston 732, which is slidably connected to the first cylinder 731 along the Y-axis. An annular protrusion on the first piston 732 is placed inside the chamber of the first cylinder 731. The first piston 732 divides the chamber of the first cylinder 731 into two non-communicating parts.

[0055] Reference Figure 2 and 3 An external drive shaft 610 is coaxially fitted with a thrust bearing. One end of the thrust bearing contacts the external shaft gear 636, and the other end contacts the first piston 732. The other end of the first piston 732 contacts the shoulder of the external drive shaft 610. Hydraulic oil is supplied to both parts of the chamber of the first cylinder 731, which drives the piston to move along the Y-axis, thereby pushing the external drive shaft 610 to move axially. When the external drive shaft 610 moves toward the side where the mounting base 200 is located until the thrust bearing contacts the first cylinder 731, the first gear 710 and the second gear 720 separate.

[0056] Reference Figure 2 The A-axis mechanism includes an A-axis rotation mechanism 800, which is used to drive the working disk 120 to rotate along the A-axis.

[0057] The A-axis rotation mechanism 800 includes an inner drive shaft 810 arranged along the Y-axis and an A-power component 820 for driving the inner drive shaft 810 to rotate. The inner drive shaft 810 is coaxially inserted inside the outer drive shaft 610, and one end of the inner drive shaft 810 extends through the outer drive shaft 610 to the mounting base 200, and is rotatably connected to the mounting base 200 via a bearing.

[0058] Reference Figure 2 The A-axis power component 820 is a hydraulic motor and is bolted to the slide block 110. To improve the transmission ratio, the A-axis rotation mechanism 800 also includes a bevel gear set 830. The bevel gear set 830 is used to transmit the torque of the A-axis power component 820 to the inner drive shaft 810.

[0059] Reference Figure 3 The bevel gear set 830 includes: The outer casing 831 is rotatably connected to the slide block 110 via a bearing, and the rotation axis of the outer casing 831 is parallel to the inner drive shaft 810. The driving bevel gear 832 is coaxially rotatably connected to the housing 831, and the axis of rotation is parallel to the axis of rotation of the housing 831. Driven bevel gear 833 is rotatably connected to housing 831 on the same axis, and is arranged on the same axis as driving bevel gear 832; Planetary bevel gear 834 is rotatably connected to housing 831, and driven bevel gear 833 and driven gear both mesh with planetary bevel gear 834; The inner shaft gear 835 is coaxially fixedly connected to the inner transmission shaft 810.

[0060] The output shaft of power component A 820 is fixedly connected to the fifth gear 836, and the driving bevel gear 832 is coaxially fixedly connected to the sixth gear 837, which meshes with the fifth gear 836.

[0061] The rotation centers of the outer casing 831, the driving bevel gear 832, and the driven bevel gear 833 are all coaxial. Multiple teeth are arranged circumferentially along the rotation center of the outer wall of the outer casing 831, and these teeth mesh with the inner shaft gear 835. In this embodiment, the teeth on the outer casing 831 are gear rings fixedly connected to the outer casing 831.

[0062] Driven bevel gear 833 and linkage gear 635 are coaxially and fixedly connected, meaning that when linkage gear 635 rotates, driven bevel gear 833 rotates at the same speed. Furthermore, the transmission ratio between linkage gear 635 and outer shaft gear 636 is 1:n, while the transmission ratio between the teeth of housing 831 and inner shaft gear 835 is 2:n.

[0063] When the A-axis needs to rotate (i.e., the working disk 120 rotates around the A-axis), the A power component 820 drives the driving bevel gear 832 to rotate, while the driven bevel gear 833 does not rotate (the B power component 620 does not work). As a result, the planetary bevel gear 834 revolves and drives the outer casing 831 to rotate. The inner shaft gear 835, which meshes with the teeth of the outer casing 831, rotates synchronously, thereby driving the inner transmission shaft 810 to rotate, thus realizing the rotation of the working disk 120 around the A-axis.

[0064] When rotation of axis B is required (i.e., rotation of mounting base 200 around axis B), power component B 620 drives the outer drive shaft 610 to rotate via a spur gear set. The linkage gear 635 drives the driven bevel gear 833 to rotate simultaneously with the outer shaft gear 636. At this time, the driving bevel gear 832 does not rotate (power component A 820 is not working), thereby driving the housing 831 to rotate, which in turn drives the rotation of the inner drive shaft 810. The transmission ratio between linkage gear 635 and outer shaft gear 636 is 1:n, and the transmission ratio between the teeth of housing 831 and inner shaft gear 835 is 2:n. This achieves constant speed rotation of the inner drive shaft 810 and outer drive shaft 610, ensuring that the inner drive shaft 810 remains relatively stationary with respect to mounting base 200, thus preventing the working disc 120 from rotating when mounting base 200 rotates.

[0065] Reference Figure 4 The mounting base 200 includes a base body 210 and a rotating base 220 that rotates about the A-axis. The working disk 120 is mounted on the rotating base 220, and the A-axis rotation mechanism 800 drives the rotating base 220 to rotate, thereby driving the working disk 120 to rotate. The base body 210 is used to support the rotating base 220 and is also used to connect to the external drive shaft 610.

[0066] Reference Figure 4 The base 210 includes a vertically arranged connecting portion 211 and a horizontally arranged mounting portion 212. The connecting portion 211 is disc-shaped and is fixedly connected to the outer drive shaft 610 by bolts. In addition, the second gear disc 720 is also fixedly connected to the connecting portion 211.

[0067] The mounting part 212 is also disc-shaped and eccentrically fixed to the connecting part 211, and the axis of the mounting part 212 is coaxial with the A-axis. In this embodiment, the mounting part 212 and the connecting part 211 are integrally forged, which improves the strength, hardness and wear resistance of the seat 210 and extends its service life.

[0068] The mounting part 212 has a mounting hole, and a rotating sleeve 230 is inserted through the mounting hole from bottom to top. The rotating sleeve 230 is fixedly connected to the mounting part 212 by bolts. The rotating seat 220 is coaxially inserted with the rotating sleeve 230, and the two can rotate relative to each other.

[0069] The rotating base 220 is coaxially fixed to the external gear ring 240 by bolts, and the external gear ring 240 is located above the mounting part 212.

[0070] A second A-axis gear 241 is rotatably connected to the connecting part 211, and the second A-axis gear 241 meshes with the external gear ring 240. A first A-axis gear 813 is rotatably connected inside the connecting part 211, and the first A-axis gear 813 meshes with the second A-axis gear 241. A second bevel gear 812 is coaxially fixedly connected to the first A-axis gear 813, and one end of the inner drive shaft 810 is fixedly connected to the first bevel gear 811. The first bevel gear 811 meshes with the second bevel gear 812.

[0071] The rotation of the inner drive shaft 810 drives the first bevel gear 811 to rotate, and the second bevel gear 812, which meshes with the first bevel gear 811, also rotates, thereby causing the first A-axis gear 813 to rotate. The rotation of the first A-axis gear 813 drives the second A-axis gear 241 to rotate, and the external gear ring 240, which meshes with the second A-axis gear 241, rotates, thereby causing the rotating seat 220 to rotate, realizing the rotation of the working disc 120 around the A-axis.

[0072] Reference Figure 4 The mounting base 200 also includes a bottom cover 251 and an upper cover 252. The bottom cover 251 and the upper cover 252 cover the rotating base 220 and the rotating sleeve 230 to block cutting fluid and chips.

[0073] A bottom cover 251 is located at the bottom of the mounting portion 212, and the two are fixedly connected by bolts. An upper cover 252 is placed over the upper end of the mounting portion 212, and the two are fixedly connected by bolts. The upper cover 252 has an opening that mates with the rotating seat 220, allowing the rotating seat 220 to slide axially. The inner wall of the opening is sealed to the rotating seat 220 by a sealing ring. After the working disc 120 is installed on the mounting base 200, a sealing gap is formed between the top of the upper cover 252 and the working disc 120.

[0074] To further enhance the protection of the internal structure of the mounting base 200, compressed gas can be introduced into the mounting base 200 to form an air seal at the gap between the mounting base 200 and the outside, effectively preventing cutting fluid and chips from entering the interior of the mounting base 200 and improving the reliability of the equipment.

[0075] Reference Figure 4 The A-axis mechanism also includes an A-axis locking mechanism 900, which is located inside the mounting base 200 and is used to restrict the rotation of the rotating base 220.

[0076] The A-axis locking mechanism 900 includes a third gear disk 910 and a fourth gear disk 920. The third gear disk 910 is fixedly connected to the rotating seat 220 and is located above the mounting portion 212. The tooth surfaces of the third gear disk 910 face the mounting portion 212. The fourth gear disk 920 is fixedly connected to the mounting portion 212. Both the third gear disk 910 and the fourth gear disk 920 are coaxially arranged with the A-bearing, and the third gear disk 910 and the fourth gear disk 920 are arranged facing each other.

[0077] The rotating seat 220 can slide axially with the rotating sleeve 230. The axial movement of the rotating seat 220 relative to the rotating sleeve 230 enables the third gear disk 910 and the fourth gear disk 920 to engage or disengage. When the working disk 120 needs to rotate around the A-axis, the rotating seat 220 moves axially, the third gear disk 910 and the fourth gear disk 920 disengage, and the rotating seat 220 is driven to rotate by the A-axis rotation mechanism 800. After the angle adjustment of the working disk 120 is completed, the rotating seat 220 moves axially, so that the third gear disk 910 and the fourth gear disk 920 engage, thereby locking the working disk 120 on the A-axis.

[0078] Reference Figure 4 The A-axis locking mechanism 900 also includes a second hydraulic power component 930 for driving the axial movement of the rotating seat 220.

[0079] The second hydraulic power component 930 includes a second piston 931. A rotating sleeve 230 has an annular groove at its lower end. The annular protrusion of the second piston 931 is placed within the annular groove. A second end cap 932 is bolted to the rotating sleeve 230, sealing one end of the annular groove on the rotating sleeve 230, thus forming the working chamber of the second hydraulic power component 930. The protrusion of the second piston 931 divides the working chamber of the second hydraulic power component 930 into two non-communicating parts. Hydraulic oil is introduced into these two chambers to drive the second piston 931 to move axially along axis A.

[0080] Reference Figure 4 A rotating seat 220 is coaxially fixedly connected to a connecting shaft 221. One end of the connecting shaft 221 is disc-shaped and is bolted to the bottom of the mounting seat 200. A second piston 931 is coaxially sleeved on the connecting shaft 221. A first limiting ring 933 is sleeved on the connecting shaft 221 and is fixedly connected to the connecting shaft 221 by bolts. One end of the second piston 931 abuts against the disc-shaped end of the connecting shaft 221, and the other end abuts against the first limiting ring 933. The movement of the second piston 931 drives the connecting shaft 221 to move axially, thereby moving the mounting seat 200.

[0081] To facilitate the installation and removal of the work plate 120, the rotating base 220 is provided with a locking mechanism 300 for locking the work plate 120.

[0082] Reference Figure 4 The locking mechanism 300 includes a sliding shaft 310 slidably connected to the rotating seat 220 along the A-axis and a T-block 320 fixedly connected to one end of the sliding shaft 310.

[0083] The bottom of the working disc 120 is provided with a T-slot that fits the T-block 320. The working disc 120 moves in a direction perpendicular to the A-axis so that the T-block 320 is inserted into the T-slot, and the working disc 120 and the T-block 320 are connected. When the sliding shaft 310 slides axially along the A-axis, it drives the working disc 120 to move axially along the A-axis.

[0084] Multiple positioning blocks 222 are fixedly connected to the side of the rotating base 220 near the working plate 120. The positioning blocks 222 are arranged circumferentially around axis A. The bottom of the working plate 120 has multiple positioning grooves 122 that are adapted to the positioning blocks 222. When the working plate 120 moves axially, the positioning blocks 222 and the positioning grooves 122 are inserted, and the working plate 120 is locked to the rotating base 220.

[0085] Reference Figure 4 The locking mechanism 300 also includes a third hydraulic power component, which is used to drive the slide shaft 310 to move axially along the A-axis.

[0086] The rotating seat 220 has an annular groove, which is closed by the connecting shaft 221 to form the chamber of the third hydraulic power component. The sliding shaft 310 is coaxially and fixedly connected to the third piston 331; in this embodiment, the two are integrally formed. The third piston 331 divides the chamber of the third hydraulic power component into two independent parts. Hydraulic oil is introduced into the chamber of the third hydraulic power component, driving the piston to move axially, thereby enabling the sliding shaft 310 to move axially along axis A.

[0087] To supply pressurized liquid and / or pressurized gas into the mounting base 200, the worktable is also provided with a fluid delivery structure. In this embodiment, the pressurized liquid is used to drive the second hydraulic power unit 930 and the third hydraulic power unit, and the pressurized gas is used to form an air seal.

[0088] Reference Figure 3 The fluid transport structure includes a first rotary communication structure 410, which is used to connect a fixed flow channel and a rotating flow channel.

[0089] Reference Figure 3 The first rotary communication structure 410 includes a first fixed communication block 411 and a first rotary communication block 412. The first fixed communication block 411 is fixedly connected to the slide block 110. The first fixed communication block 411 has six first communication ports 413. The first communication ports 413 are connected to a pressure oil source through pressure oil pipes.

[0090] The first rotating connecting block 412 is coaxially fixed to the outer drive shaft 610 by bolts. The first rotating connecting block 412 is coaxially disposed within the first fixed connecting block 411, and the two can rotate relative to each other. Six first flow channels 415 are formed within the first rotating connecting block 412. Six first connecting annular grooves 414 are coaxially formed on the outer wall of the first rotating connecting block 412, and the first connecting annular grooves 414 are connected to the first flow channels 415 in a one-to-one correspondence. The first connecting port 413 is connected to the first connecting annular grooves 414 in a one-to-one correspondence.

[0091] Reference Figure 3 The fluid transport structure also includes transport channels 420, which connect the first rotary communication structure 410 to the interior of the mounting base 200. There are six transport channels 420, each connected one-to-one with the first channel 415.

[0092] Reference Figure 5 The mounting base 200 has a second flow channel 213 inside, which communicates with the conveying flow channel 420. One end of the second flow channel 213 has a connecting part 211 for communicating with the conveying flow channel 420. The second flow channel 213 extends from the connecting part 211 to the bottom surface of the mounting part 212. There are six second flow channels 213, which communicate one-to-one with the conveying flow channel 420.

[0093] Reference Figure 4 and Figure 5 Two second flow channels 213 communicate with the chamber of the second hydraulic power component 930. Specifically, the rotating sleeve 230 has two flow channels communicating with the second hydraulic power component 930, and an oil pipe communicating with these flow channels is fixedly connected to the rotating sleeve 230. The other end of the oil pipe is fixedly connected to the mounting part 212 and communicates with the conveying flow channel 420. This structure is used to convey hydraulic oil into the second hydraulic power component 930, thereby driving the second hydraulic power component 930 to work.

[0094] Reference Figure 4 and Figure 5 Two second flow channels 213 are connected to the chamber of the third hydraulic power component via a second rotary connecting structure 430. Specifically, the second rotary connecting structure 430 includes a second fixed connecting block 431, which has two second connecting ports 432. The second connecting ports 432 are connected to the second flow channels 213 via oil pipes. A connecting shaft 221 is fitted onto the second fixed connecting block 431, and the two can rotate relative to each other. A second limiting ring 433 for limiting the axial position of the second fixed connecting block 431 is threaded onto the connecting shaft 221, and the other end of the second fixed connecting block 431 contacts the first limiting ring 933. Then, bolts are used to connect the second fixed connecting block 431 to the second end cap 932 to limit the rotation of the second fixed connecting block 431.

[0095] The connecting shaft 221 has two coaxially formed second connecting annular grooves 434, with a one-to-one correspondence between the second connecting port 432 and the second connecting annular groove 434. Inside the connecting shaft 221, there are two third flow channels 223 that communicate with the second connecting annular grooves 434. One end of the third flow channel 223 communicates with one end of the third hydraulic power component chamber, and the other extends to the rotating seat 220 and communicates with the other end of the third hydraulic power component chamber. This structure is used to supply hydraulic oil to the third hydraulic power component, thereby driving the third hydraulic power component to operate.

[0096] The remaining two second flow channels 213 are used to deliver compressed air to form an air seal, effectively preventing cutting fluid and chips from entering the mounting base 200.

[0097] One of the second flow channels 213 is connected to the mounting part 212 and the bottom cover 251 to form a cavity.

[0098] Another second flow channel 213 is connected to the cavity formed between the working plate 120 and the top cover. Specifically, the rotating sleeve 230 has an inner fourth flow channel (not shown in the figure). The fourth flow channel extends to the rotating seat 220 and penetrates the top surface of the rotating seat 220, thereby connecting the second flow channel 213 to the cavity formed between the working plate 120 and the top cover.

[0099] The implementation principle of a five-sided machining worktable according to an embodiment of this application is as follows: the B-axis mechanism drives the mounting base 200 to rotate and lock, and the worktable 120 mounted on the mounting base 200 rotates around the B-axis. The A-axis mechanism drives the worktable 120 to rotate and lock around the A-axis. The drive structures of both the A-axis and B-axis are mounted on the slide 110, rather than on the mounting base 200 used to mount the worktable 120, thereby greatly reducing the weight that the mounting base 200 needs to bear and reducing the load on the B-axis mechanism.

[0100] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A five-sided machining workbench, including: Base (100); The slide (110) is slidably connected to the mounting base (200) along the Y-axis direction; Mounting base (200) is rotatably connected to one end of slide (110) and rotates along axis B; The working plate (120) is mounted on the mounting base (200) and is rotatable relative to the mounting base (200) along the A-axis; The Y-axis moving mechanism (500Y) is mounted on the mounting base (200) and is used to drive the slide (110) to move along the Y-axis direction; The B-axis rotation mechanism (600) is mounted on the slide (110) and drives the mounting base (200) to rotate along the B-axis; as well as A-axis rotation mechanism (800) is used to drive the working disk (120) to rotate along the A-axis; The B-axis rotation mechanism (600) includes an outer drive shaft (610) arranged parallel to the Y-axis and a B-power component (620) that drives the outer drive shaft (610) to rotate. The outer drive shaft (610) is rotatably connected to the slide (110) and transmits the torque of the B-power component (620) to the mounting base (200) to drive the mounting base (200) to rotate. The B-power component (620) is mounted on the slide (110). The A-axis rotation mechanism (800) includes an inner drive shaft (810) for driving the work plate (120) to rotate and an A-power member (820) for driving the inner drive shaft (810) to rotate. The inner drive shaft (810) passes through the outer drive shaft (610) and the two are coaxially arranged. The inner drive shaft (810) is rotatable relative to the outer drive shaft (610). The A-power member (820) is mounted on the slide (110). The A-axis rotation mechanism (800) further includes a bevel gear set (830) for transmitting the torque of the A-axis power component (820) to the inner transmission shaft (810), the bevel gear set (830) comprising: The outer shell (831) is rotatably connected to the slide (110) and the axis of rotation is parallel to the Y-axis. The outer shell (831) is uniformly provided with teeth along the circumferential direction of the axis of rotation. The active bevel gear (832) is coaxially rotatably connected to the housing (831), and the power component A (820) drives the active bevel gear (832) to rotate; Driven bevel gear (833) is coaxially rotatably connected to housing (831); Planetary bevel gear (834) is rotatably connected to housing (831), and both driven bevel gear (833) and driving bevel gear (832) mesh with planetary bevel gear (834); An inner shaft gear (835) is coaxially fixedly connected to an inner transmission shaft (810), and the inner shaft gear (835) meshes with the outer casing (831). The B-axis rotation mechanism (600) further includes a spur gear set that transmits the torque of the B-power component (620) to the outer drive shaft (610). The spur gear set includes a linkage gear (635) rotatably connected to the slide (110) and an outer shaft gear (636) coaxially fixedly connected to the outer drive shaft (610). The outer shaft gear (636) meshes with the linkage gear (635). The linkage gear (635) and the driven bevel gear (833) are fixed coaxially. One end of the inner transmission shaft (810) is fixedly connected to the first bevel gear (811) coaxially. The mounting base (200) is rotatably connected to the second bevel gear (812). The second bevel gear (812) rotates parallel to the A-axis. The second bevel gear (812) is fixedly connected to the first A-axis gear (813) coaxially. The first A-axis gear (813) drives the working disk (120) to rotate.

2. The five-sided machining worktable according to claim 1, characterized in that: The transmission ratio between the linkage gear (635) and the outer shaft gear (636) is 1:n, and the transmission ratio between the teeth of the outer shell (831) and the inner shaft gear (835) is 2:n.

3. The five-sided machining worktable according to claim 1, characterized in that: It also includes a B-axis locking mechanism (700) for limiting the rotation of the mounting base (200). The B-axis locking mechanism (700) includes a first gear plate (710) fixedly connected to the slide (110) and a second gear plate (720) fixedly connected to the mounting base (200). The first gear plate (710) and the second gear plate (720) are both coaxially arranged with the B-axis, and the second gear plate (720) and the first gear plate (710) are arranged facing each other. The slide (110) is provided with a first hydraulic power component (730) connected to the end away from the mounting base (200) to drive the external drive shaft (610) to move axially. The external drive shaft (610) moves axially relative to the slide (110) to realize the engagement or disengagement of the first gear plate (710) and the second gear plate (720). When the first gear plate (710) and the second gear plate (720) are engaged, the mounting base (200) cannot rotate relative to the slide (110).

4. The five-sided machining worktable according to claim 3, characterized in that: The mounting base (200) includes a base body (210) and a rotating base (220) that rotates along the A-axis. The base body (210) is fixedly connected to a rotating sleeve (230). The rotating base (220) passes through the rotating sleeve (230) and the two are rotatably connected. The rotating base (220) is coaxially fixedly connected to an external gear ring (240). The base body (210) is rotatably connected to a second A-axis gear (241) that meshes with a first A-axis gear (813). The second A-axis gear (241) meshes with the external gear ring (240).

5. The five-sided machining worktable according to claim 4, characterized in that: The mounting base (200) is provided with an A-axis locking mechanism (900) to restrict the rotation of the rotating seat (220). The A-axis locking mechanism (900) includes a third gear disk (910) fixedly connected to the rotating seat (220) and a fourth gear disk (920) fixedly connected to the seat body (210). The third gear disk (910) and the fourth gear disk (920) are both coaxially arranged with the A-axis, and the third gear disk (910) and the fourth gear disk (920) are arranged facing each other. The rotating seat ( 220) is slidably disposed along the axial direction with the rotating sleeve (230). The rotating sleeve (230) is provided with a second hydraulic power component (930) for driving the rotating seat (220) to move axially. The rotating seat (220) moves axially relative to the rotating sleeve (230) to realize the engagement or disengagement of the third toothed disc (910) and the fourth toothed disc (920). When the third toothed disc (910) and the fourth toothed disc (920) are engaged, the rotating seat (220) cannot rotate relative to the seat body (210).

6. The five-sided machining worktable according to claim 5, characterized in that: The rotating seat (220) is provided with a locking mechanism (300) for locking the working disc (120). The locking mechanism (300) includes a sliding shaft (310) slidably connected to the rotating seat (220) along the A-axis and a T-block (320) fixedly connected to one end of the sliding shaft (310). The bottom of the working disc (120) is provided with a T-slot adapted to the T-block (320). The working disc (120) moves along a direction perpendicular to the A-axis so that the T-block (320) is inserted into the T-slot. A plurality of positioning blocks (222) are fixedly connected to the side of the rotating seat (220) near the working disc (120). A plurality of positioning slots (122) adapted to the positioning blocks (222) are opened at the bottom of the working disc (120). The rotating seat (220) is provided with a third hydraulic power component for driving the sliding shaft (310) to move along the A-axis.

7. The five-sided machining worktable according to claim 6, characterized in that: The seat (210) includes a connecting part (211) for fixed connection to the external drive shaft (610) and a mounting part (212) for mounting the rotating sleeve (230). The mounting part (212) is eccentrically fixedly connected to the connecting part (211) and the two are integrally formed. One end of the mounting part (212) is fixedly connected to a bottom cover (251), and the other end is fixedly connected to a top cover (252). The mounting part (212) has a mounting hole. The rotating sleeve (230) passes through the mounting hole and is fixedly connected to the mounting part (212). The top cover (252) has an opening that cooperates with the rotating seat (220). The end of the top cover (252) away from the mounting part (212) forms a sealing gap with the working plate (120).

8. The five-sided machining worktable according to claim 7, characterized in that: It also includes a fluid delivery structure for delivering pressurized liquid or pressurized gas within the mounting base (200). The fluid delivery structure includes a first rotary communication structure (410) and a delivery channel (420) communicating with the interior of the mounting base (200). The first rotary communication structure (410) includes a first fixed communication block (411) fixedly connected to the slide (110) and a first rotating communication block (412) fixedly connected to the external drive shaft (610). The first rotating communication block (412) is coaxially disposed within the first fixed communication block (411) and the two can rotate relative to each other. A first channel (415) communicating with the delivery channel (420) is opened in the first rotating communication block (412). A first connecting annular groove (414) communicating with the first channel (415) is coaxially opened on the outer wall of the first rotating communication block (412). A first connecting port (413) communicating with the first connecting annular groove (414) is opened on the first fixed communication block (411).

9. The five-sided machining worktable according to claim 8, characterized in that: The first flow channel (415), the first connecting annular groove (414) and the first connecting port (413) are each provided in six and correspond one-to-one. The conveying flow channel (420) is provided in six and corresponds one-to-one with the six first flow channels (415). The two chambers of the second hydraulic power component (930) are connected to one of the conveying flow channels (420), and the two chambers of the third hydraulic power component are connected to one of the conveying flow channels (420). The other two conveying flow channels (420) are used to convey compressed gas. One of the conveying flow channels (420) is connected to the chamber formed by the mounting part (212) and the bottom cover (251), and the other conveying flow channel (420) is connected to the chamber formed between the working plate (120) and the top cover (252).

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