Five-axis rotary table

Abstract

The invention discloses a five-axis rotary table which comprises a base, a clamping table, a first driving assembly for driving the clamping table to rotate around a center line, a first cradle body and a second cradle body, and the first cradle body and the second cradle body are arranged at the left end and the right end of the first driving assembly and drive the first driving assembly to swing. The workpiece clamping tool comprises a clamping base detachably installed on the clamping table and a plurality of clamping assemblies used for limiting and clamping a workpiece. The multiple clamping assemblies are fixed to the clamping base, and a clamping space used for clamping the workpiece is defined by the multiple clamping assemblies and the clamping base. The first driving assembly comprises a rotating box body, a first output shaft, a first torque motor and a first braking unit arranged at the end of the first output shaft. The first cradle body comprises a first box body, a second output shaft, a second torque motor and a second brake unit arranged at the end of the second output shaft. The brake unit is arranged, and the output shaft is braked through the brake unit, so that the positioning machining precision of parts is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of five-axis machining equipment, in particular to a five-axis rotary table. BACKGROUND

[0002] A numerical control rotary table needs to be installed on the machine tool worktable of a numerical control machining center, and then the workpiece is clamped on the numerical control rotary table, so that the machine tool can process the workpiece at any angle and process the linkage curved surface. In the current workpiece processing technology, in many cases, the workpiece needs to be frequently rotated to a certain angle for processing, and the same workpiece needs to be repeatedly changed with different tools for processing, and in the positioning process, the loosening reaction speed of the brake device of the numerical control rotary table directly affects the processing efficiency, and the repeated positioning accuracy of the numerical control rotary table directly affects the finished product accuracy of the workpiece.

[0003] Taking the common machining center four-axis and five-axis rotary table and the machine tool spindle as an example, their drives have worm and gear, planetary reducer, harmonic reducer, roller cam reducer and other transmission forms, however, these structures are all two or more mechanical engagement connection modes for transmission, so the connection of the two machines will generate resistance and engagement force, and these friction engagement forces will cause the engaged mechanical parts to wear in the long-term use working condition, thereby generating a large gap, which will cause low accuracy and inaccurate rotary positioning after a long time, and most of these structures do not have a driven brake structure but rely on the worm to drive the worm gear, but the worm gear cannot drive the worm, which relies on hardware engagement to brake or realize the rotary table mechanical wear engagement brake or speed reduction motion according to the principle of planetary gear reduction.

[0004] At the same time, in the clamping process of the numerical control lathe for the machined parts, since most clamps only adopt the two-end fixed clamping mode, they only fit the clamping and fixing of a single type of machined part, which leads to low universality, so that the ordinary double-sided clamp cannot perform stable clamping process when facing different specifications and types of parts, and does not have adjustability. SUMMARY

[0005] The present application aims to provide a five-axis rotary table to solve the technical problems mentioned in the background.

[0006] To achieve the above-mentioned application purpose, the technical scheme adopted by the present application is: a five-axis rotary table, comprising a base, a clamping table, a first drive assembly for driving the clamping table to rotate around a center line, and a first cradle body and a second cradle body arranged at the left and right ends of the first drive assembly and driving the first drive assembly to swing, the first cradle body and the second cradle body are respectively detachably fixed at the two ends of the base. The clamping table is provided with a workpiece clamping tool, which comprises a clamping seat detachably mounted on the clamping table and a plurality of clamping assemblies for limiting and clamping the workpiece, the clamping assemblies being fixed on the clamping seat and surrounding a clamping space for clamping the workpiece; The first driving assembly comprises a rotating box, a first output shaft connected with the clamping table, a first torque motor for driving the first output shaft to rotate, and a first brake unit arranged at the end of the first output shaft. The first rocking body comprises a first box body detachably fixed on the base, a second output shaft connected with the rotating box, a second torque motor for driving the second output shaft to rotate, and a second brake unit arranged at the end of the second output shaft.

[0007] In some embodiments, the clamping assembly comprises a clamping seat, a cylinder and a clamping plate connected to the end of the cylinder, the clamping seat being fixed on the clamping seat by bolts, and the cylinder being fixed on the clamping seat.

[0008] In some embodiments, the upper surface of the clamping seat is provided with a groove, the area of the groove being not less than the projection area of the clamping space, and a magnetic force element is arranged in the groove, the magnetic force element having magnetic attraction force for metal workpieces.

[0009] In some embodiments, the workpiece clamping tool further comprises a plurality of soft rubber pads, the soft rubber pads being arranged on the end face of the clamping assembly facing the clamping space in a one-to-one manner.

[0010] In some embodiments, the first driving assembly comprises a first shaft sealing element connected with the rotating box, the first shaft sealing element being coaxially arranged with the first output shaft and sleeved on the lower end of the first output shaft through a first deep groove ball bearing, the lower end face of the first shaft sealing element being provided with an annular first mounting groove, the first brake unit being arranged in the first mounting groove, and the first brake flange seat being fixedly connected with the first shaft sealing element through bolts, and the first torque motor being arranged at the upper end of the first shaft sealing element.

[0011] In some embodiments, the first brake unit further comprises a sealing component, the sealing component comprising a first skeleton oil seal, a second skeleton oil seal and at least a first sealing element arranged on the outer diameter side of the first brake disc, the first skeleton oil seal being arranged between the first output shaft and the first shaft sealing element and below the first deep groove ball bearing, and the second skeleton oil seal being arranged between the first brake flange seat and the first output shaft and below the first brake driven plate.

[0012] In some embodiments, the first braking unit further includes a first elastic reset member for resetting the first brake stationary pad, and the first shaft seal has a first reset spring mounting hole in the upper groove wall of the first mounting groove. The first elastic reset member is disposed in the first reset spring mounting hole and abuts against the upper surface of the first brake stationary pad. The first elastic reset element is a spring.

[0013] In some embodiments, the first drive assembly further includes a first turntable bearing, which is disposed above the first torque motor and is connected to the first output shaft and the rotating housing by bolts.

[0014] In some embodiments, the first cradle body includes a first housing detachably fixed to the base 1, a second output shaft connected to the rotating housing, a second torque motor driving the second output shaft to rotate, a second braking unit disposed at the end of the second output shaft, and a second shaft seal fixed to the first housing by bolts. The right end face of the second shaft seal is provided with an annular second mounting groove, the second braking unit is disposed in the second mounting groove, the second torque motor is disposed at the left end of the second shaft seal, and the second braking unit has the same structure as the first braking unit.

[0015] The second cradle body includes a second housing that is detachably fixed to the base and a rotating shaft that is rotatably disposed in the second housing and connected to the rotating housing.

[0016] In some embodiments, the first drive assembly further includes a first grating encoder for detecting the rotational speed of the first output shaft and the position of the clamping table, the first grating encoder being fixed to the first torque motor by a bracket; The first cradle body also includes a second grating encoder for detecting the rotational speed of the second output shaft and the position of the clamping table. The second grating encoder is fixed to the second torque motor by a bracket.

[0017] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: Both the first drive assembly and the first cradle body of the present invention are provided with a braking unit. The first output shaft of the first drive assembly and the second output shaft of the first cradle body are braked by the actuation unit, so that the output shaft will not rotate when subjected to cutting forces in all directions during part processing, thus ensuring the positioning and processing accuracy of the part. Meanwhile, the present invention has a workpiece clamping fixture installed on the clamping table. The workpiece clamping fixture can use multiple cylinders to push the clamping plate to adjust and extend the workpiece at different angles, thereby achieving the clamping and fixing of most non-standard parts, and improving the functionality and clamping application range of the turntable clamping fixture. Attached Figure Description

[0018] Figure 1 This is a perspective view of a five-axis rotary table according to the present invention; Figure 2 This is a schematic diagram of the workpiece clamping fixture of the present invention; Figure 3 This is a cross-sectional view of a five-axis rotary table according to the present invention; Figure 4 This is a cross-sectional view of the first cradle body of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figure 1 This disclosure provides a five-axis turntable, including a base 1, a clamping platform 3, a first drive assembly 2 that drives the clamping platform 3 to rotate around a center line, and a first cradle body 4 and a second cradle body 5 disposed at the left and right ends of the first drive assembly 2 and driving the first drive assembly 2 to swing. The first cradle body 4 and the second cradle body 5 are respectively detachably fixed at both ends of the base 1.

[0026] Reference Figure 2 The clamping table 3 is equipped with a workpiece clamping fixture, which includes a clamping base 61 that is detachably installed on the clamping table 3 and a plurality of clamping components 63 for limiting and clamping the workpiece. The plurality of clamping components 63 are fixed on the clamping base 61 and together form a clamping space for clamping the workpiece.

[0027] Furthermore, multiple clamping components 63 are detachably arranged in a rectangular or triangular shape on the surface of the clamping base 1. The clamping components 63 include a clamping base 631, a cylinder 632, and a clamping plate 633 connected to the end of the cylinder 632.

[0028] Furthermore, the end face of the clamping plate 23 forming the clamping space is a plane, an arc surface, or other shapes to be suitable for clamping workpieces of different shapes.

[0029] Multiple cylinders 632 push the clamping plate 633 to perform multi-angle adjustment and telescopic clamping of the workpiece at different angles, thereby achieving the clamping and fixing of most non-standard parts and improving the functionality and application range of the turntable clamping fixture.

[0030] In some embodiments, the upper surface of the clamping base 61 is provided with a groove, the area of ​​which is not less than the projected area of ​​the clamping space. A magnetic element 62 is provided in the groove, which has a magnetic attraction force on the metal workpiece, and can quickly and accurately install the metal workpiece in the fixture.

[0031] In some embodiments, the clamping assembly 63 further includes a plurality of soft rubber pads 64, which are arranged one-to-one on the end face of the clamping plate 23 facing the clamping space.

[0032] In some embodiments, the clamping base 61 is mounted on the clamping table 3 via a connector, including a screw and a T-nut 7. The upper surface of the clamping table 3 is provided with a plurality of connecting grooves 30, and the clamping base 61 is provided with a plurality of connecting through holes corresponding to the connecting grooves 30. The T-nut 7 is configured in the connecting groove 30, and the screw passes through the connecting through hole and is connected to the T-nut 7.

[0033] In some embodiments, the connecting groove 30 is an inverted "T"-shaped groove, and the T-nut is movably disposed in the connecting groove 30.

[0034] In some embodiments, the first drive assembly 2 further includes a first shaft seal 25 connected to the rotating housing. The first shaft seal 25 is coaxially arranged with the first output shaft 21 and is sleeved on the lower end of the first output shaft 21 by a first deep groove ball bearing 31. The lower end face of the first shaft seal 25 is provided with an annular first mounting groove 250. The first braking unit 24 is disposed in the first mounting groove 250, and the first brake flange seat 241 is fixedly connected to the first shaft seal 25 by bolts. The first torque motor 22 is disposed on the upper end of the first shaft seal 25.

[0035] The first braking unit 24 includes a first brake flange seat 241 detachably fixed in the rotating housing, a first brake driven pad 244 fixed on the first output shaft 21, a first brake stationary pad 243 fixedly connected to the first brake flange seat 241 and partially located below the first brake driven pad 244, and a first brake pressure plate 242 movably disposed in the first brake flange seat 241 and located below the first brake stationary pad 243.

[0036] When the first drive assembly 2 needs to decelerate or brake, hydraulic oil is introduced into the first pressure plate groove 2410. The hydraulic oil forces the first brake pressure plate 242 to move upward, thereby pushing the first brake stationary plate 243 and the first brake driven plate 244 to overlap on the groove wall of the first mounting groove 250, thus braking the first output shaft 21. This ensures that the output shaft will not rotate when subjected to cutting forces in all directions during part processing, thus guaranteeing the positioning and processing accuracy of the part.

[0037] In some embodiments, the first braking unit 24 further includes a first sealing component, which includes a first skeleton oil seal 245, a second skeleton oil seal 246, and a first seal 247 disposed at least on the outer diameter side of the first brake pressure plate 242. The first skeleton oil seal 245 is disposed between the first output shaft 21 and the first shaft seal 25 and located below the first deep groove ball bearing 31. The second skeleton oil seal 246 is disposed between the first brake flange seat 241 and the first output shaft 21 and located below the first brake driven pad 244.

[0038] In some embodiments, the first braking unit 24 further includes a first elastic reset member for resetting the first brake stationary pad 243. The first shaft seal 25 has a first reset spring mounting hole in the upper groove wall of the first mounting groove 250. The first elastic reset member is disposed in the first reset spring mounting hole and abuts against the upper surface of the first brake stationary pad 243. Preferably, the first elastic reset member is a spring.

[0039] In some embodiments, a first shaft hole extending axially is provided in the first output shaft 21, and an oil distributor 26 is disposed in the first shaft hole. The top end of the oil distributor 26 is fixedly connected to the clamping table 3 by bolts, and the top surface of the oil distributor 26 is flush with the top surface of the clamping table 3. The oil distributor 26 is provided with multiple oil passages extending from the top surface to the bottom surface. An oil passage connecting plate 27 is detachably connected to the lower end of the oil distributor 26. The oil passage connecting plate 27 is located below the first brake flange seat 241, and multiple oil passage channels are provided in the oil passage connecting plate 27. The oil passage channels communicate with the first braking unit 24 for supplying hydraulic oil to the first braking unit 24.

[0040] In some embodiments, the first drive assembly 2 further includes a first grating encoder 30 for detecting the rotational speed of the first output shaft 21 and the position of the clamping table 3, the first grating encoder 30 being fixed to the first torque motor 22 by a bracket.

[0041] In some embodiments, the first drive assembly 2 further includes a first turntable bearing 23, which is disposed above the first torque motor 22 and is connected to the first output shaft 21 and the rotating housing by bolts.

[0042] Furthermore, the rotating housing includes a housing body 201 and a connecting base plate 202 detachably connected to the housing body 201. The housing body 201 is connected to the first cradle body 4 and the second cradle body 5 respectively. The housing body 201 and the connecting base plate 202 form a mounting cavity. The first output shaft 21, the first torque motor 22, the first turntable bearing 23, the first braking unit 24 and the first shaft seal 25 are all arranged in the mounting cavity, and the first turntable bearing 23 and the first shaft seal 25 are respectively connected to the housing body 201 by bolts.

[0043] Furthermore, the first drive assembly 2 also includes a first oil seal seat 29 connected to the housing body 201 by bolts and a third skeleton oil seal 28 disposed in the first oil seal seat 29. The third skeleton oil seal 28 is sleeved on the upper end of the first output shaft 21 and located above the first turntable bearing 23. The third skeleton oil seal 28 is used to seal the housing body 201.

[0044] Reference Figure 3 and Figure 4 The first cradle body 4 includes a first housing 40 detachably fixed to the base 1, a second output shaft 41 connected to the rotating housing, a second torque motor 42 driving the second output shaft 41 to rotate, a second braking unit 44 disposed at the end of the second output shaft 41, and a second shaft seal 45 fixed in the first housing 40 by bolts. The second shaft seal 45 is coaxially disposed with the second output shaft 41 and sleeved on the right end of the second output shaft 41 by a second deep groove ball bearing 48. The right end face of the second shaft seal 45 is provided with an annular second mounting groove. The second braking unit 44 is disposed in the second mounting groove. The second torque motor 42 is disposed on the left side of the second shaft seal 45.

[0045] The structure of the second braking unit 44 is the same as that of the first braking unit 24. The second braking unit 44 includes a second brake flange seat 441 that is detachably fixed in the second mounting groove and connected to the second shaft seal 45 by bolts, a second brake driven pad 444 fixed on the second output shaft 41, a second brake stationary pad 443 that is fixedly connected to the second brake flange seat 441 and partially located below the second brake driven pad 444, a second brake pressure plate 442 that is movably arranged in the second brake flange seat 441 and located below the second brake stationary pad 443, and a plurality of feedback flow regulating valves 6 arranged on the outside of the second brake flange seat 441. The second brake flange seat 441 is provided with a second pressure plate groove, and the second brake pressure plate 442 is arranged in the second pressure plate groove and has the freedom to float left and right.

[0046] The second braking unit 44 also includes a second sealing component, which includes a fourth skeleton oil seal 445, a fifth skeleton oil seal 446, and a second sealing element at least disposed on the outer diameter side of the second brake pressure plate 442. The fourth skeleton oil seal 445 is disposed between the second output shaft 41 and the second shaft seal 45 and is located between the second deep groove ball bearing 48 and the second brake driven pad 444. The fifth skeleton oil seal 446 is disposed between the second brake flange seat 441 and the second output shaft 41 and is located on the right side of the second brake driven pad 444.

[0047] In some embodiments, the second braking unit 44 further includes a second elastic reset member for resetting the second brake stationary pad 443. The second shaft seal 45 has a second reset spring mounting hole in the groove wall of the second mounting groove. The second elastic reset member is disposed in the second reset spring mounting hole and abuts against the upper surface of the second brake stationary pad 443. Preferably, the second elastic reset member is a spring.

[0048] Furthermore, the first housing 40 is provided with an oil connector, which is connected to the feedback regulating valve 6 of the second braking unit 44 for supplying oil to the feedback regulating valve 6.

[0049] In some embodiments, the first cradle body 4 further includes a second turntable bearing 43, a second oil seal seat 47, and a sixth skeleton oil seal 46. The second turntable bearing 43 is located to the left of the second torque motor 42 and is connected to the second output shaft 41 and the first housing 40 by bolts. The second oil seal seat 47 and the sixth skeleton oil seal 46 are located between the second torque motor 42 and the first housing 40 and to the left of the second turntable bearing 43, for sealing the first housing 40.

[0050] In some embodiments, the first cradle body 4 further includes a second grating encoder 49 for detecting the rotational speed of the second output shaft 41 and the position of the clamping table 3. The second grating encoder 49 is fixed to the second torque motor 42 by a bracket.

[0051] Reference Figure 3 The second cradle body 5 includes a second housing 50 that is detachably fixed to the base 1 and a rotating shaft 51 that is rotatably disposed in the second housing 50 and connected to the rotating housing.

[0052] In some embodiments, the second cradle body 5 further includes a third turntable bearing 52 fixedly sleeved on the rotating shaft 51, a third oil seal seat 53 sleeved on the rotating shaft 51 and disposed on the right side of the third turntable bearing 52, and a seventh skeleton oil seal 54 installed in the third oil seal seat 53.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A five-axis rotary table, characterized in that, It includes a base (1), a clamping platform (3), a first drive assembly (2) that drives the clamping platform (3) to rotate around a center line, and a first cradle body (4) and a second cradle body (5) disposed at the left and right ends of the first drive assembly (2) and driving the first drive assembly (2) to swing. The first cradle body (4) and the second cradle body (5) are respectively detachably fixed at both ends of the base (1). The clamping table (3) is equipped with a workpiece clamping fixture. The workpiece clamping fixture includes a clamping seat (61) that is detachably installed on the clamping table (3) and a plurality of clamping components (63) for limiting and clamping the workpiece. The plurality of clamping components (63) are fixed on the clamping seat (61) and together form a clamping space for clamping the workpiece. The first drive assembly (2) includes a rotating housing, a first output shaft (21) connected to the clamping table (3), a first torque motor (22) that drives the first output shaft (21) to rotate, and a first braking unit (24) disposed at the end of the first output shaft (21). The first cradle body (4) includes a first housing (40) detachably fixed on the base (1), a second output shaft (41) connected to the rotating housing, a second torque motor (42) that drives the second output shaft (41) to rotate, and a second braking unit (44) disposed at the end of the second output shaft (41).

2. The five-axis rotary table as described in claim 1, characterized in that: The clamping assembly (63) includes a clamping seat (631), a cylinder (632) and a clamping plate (633) connected to the end of the cylinder (632). The clamping seat (631) is fixed to the mounting base (61) by bolts, and the cylinder (632) is fixed to the clamping seat (631).

3. The five-axis rotary table as described in claim 1, characterized in that: The upper surface of the clamping base (61) is provided with a groove, the area of ​​which is not less than the projected area of ​​the clamping space, and a magnetic element (62) is provided in the groove, which has a magnetic attraction force on the metal workpiece.

4. The five-axis rotary table as described in claim 1, characterized in that: The workpiece clamping fixture also includes a plurality of soft rubber pads (64), which are arranged in a one-to-one manner on the end face of the clamping assembly (63) facing the clamping space.

5. The five-axis rotary table as described in claim 1, characterized in that: The first drive assembly (2) includes a first shaft seal (25) connected to the rotating housing. The first shaft seal (25) is coaxially arranged with the first output shaft (21) and sleeved on the lower end of the first output shaft (21) through a first deep groove ball bearing (31). The lower end face of the first shaft seal (25) is provided with an annular first mounting groove (250). The first braking unit (24) is arranged in the first mounting groove (250), and the first brake flange seat (241) is fixedly connected to the first shaft seal (25) by bolts. The first torque motor (22) is arranged on the upper end of the first shaft seal (25).

6. The five-axis rotary table as described in claim 5, characterized in that: The first braking unit (24) further includes a sealing component, which includes a first skeleton oil seal (245), a second skeleton oil seal (246), and a first seal (247) disposed at least on the outer diameter side of the first brake pressure plate (242). The first skeleton oil seal (245) is disposed between the first output shaft (21) and the first shaft seal (25) and located below the first deep groove ball bearing (31). The second skeleton oil seal (246) is disposed between the first brake flange seat (241) and the first output shaft (21) and located below the first brake driven pad (244).

7. The five-axis rotary table as described in claim 5, characterized in that: The first braking unit (24) further includes a first elastic reset member for resetting the first brake stationary pad (243). The first shaft seal (25) has a first reset spring mounting hole in the upper groove wall of the first mounting groove (250). The first elastic reset member is disposed in the first reset spring mounting hole and abuts against the upper surface of the first brake stationary pad (243). The first elastic reset element is a spring.

8. The five-axis rotary table as described in claim 1, characterized in that: The first drive assembly (2) also includes a first turntable bearing (23), which is disposed above the first torque motor (22). The first turntable bearing (23) is connected to the first output shaft (21) and the rotating housing by bolts.

9. The five-axis rotary table as described in claim 1, characterized in that: The first cradle body (4) includes a first housing (40) detachably fixed on the base (1), a second output shaft (41) connected to the rotating housing, a second torque motor (42) driving the second output shaft (41) to rotate, a second braking unit (44) disposed at the end of the second output shaft (41), and a second shaft seal (45) fixed in the first housing (40) by bolts. The right end face of the second shaft seal (45) is provided with an annular second mounting groove. The second braking unit (44) is disposed in the second mounting groove. The second torque motor (42) is disposed on the left side of the second shaft seal (45). The second braking unit (44) has the same structure as the first braking unit (24). The second cradle body (5) includes a second housing (50) detachably fixed to the base (1) and a rotating shaft (51) rotatably disposed within the second housing (50) and connected to the rotating housing.

10. The five-axis rotary table as described in claim 9, characterized in that: The first drive assembly (2) further includes a first grating encoder (30) for detecting the rotational speed of the first output shaft (21) and the position of the clamping table (3), and the first grating encoder (30) is fixed on the first torque motor (22) by a bracket; The first cradle body (4) also includes a second grating encoder (49) for detecting the rotational speed of the second output shaft (41) and the position of the clamping table (3). The second grating encoder (49) is fixed on the second torque motor (42) by a bracket.

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