A large modular combined five-axis rotary table device

Abstract

The application discloses a large modular combined five-axis rotary table device and belongs to the technical field of five-axis simulation rotary tables, comprising a two-axis rotary table mechanism, a three-axis rotary table mechanism one, a three-axis rotary table mechanism two and a rotary table switching and positioning mechanism; the rotary table switching and positioning mechanism comprises a linear guide rail assembly, a translation driving mechanism arranged on the linear guide rail assembly and a rotary platform mechanism; the linear guide rail assembly comprises three equidistantly and horizontally arranged lateral guide rails and two mutually horizontally arranged longitudinal guide rails perpendicular to the lateral guide rails; the application realizes the translation of the two-axis rotary table mechanism, the three-axis rotary table mechanism one and the three-axis rotary table mechanism two from a switching operation area to a working test area; the two-axis rotary table mechanism, the three-axis rotary table mechanism one and the three-axis rotary table mechanism two can be separately moved to the working test area for use; the three-axis rotary table and the two-axis rotary table can be combined to form different five-axis rotary tables, which are suitable for different working scenes.

Description

Technical Field

[0001] This invention relates to the field of five-axis simulation turntable technology, specifically a large-scale modular combined five-axis turntable device. Background Technology

[0002] A five-axis simulation turntable is a high-performance testing device used in laboratory environments. Its core function is to accurately simulate the real motion posture and angular motion of an object in five degrees of freedom in space. It is mainly used for performance testing, calibration, and dynamic simulation experiments of key components such as inertial navigation systems, gyroscopes, and accelerometers. It consists of a three-axis turntable and a two-axis turntable. During the test, it is necessary to clarify the relative relationship between the three-axis turntable and the two-axis turntable. Generally, it is required that their rotation centers coincide and their corresponding rotation axes are coplanar. Currently, five-axis turntables usually share one axis of the three-axis turntable and the two-axis turntable. Existing integrated five-axis precision turntables are expensive and have a small speed and load range, resulting in a limited range of operating conditions. Therefore, it is necessary to design a large-scale modular combined five-axis turntable device that can be adjusted according to actual operating conditions. Summary of the Invention

[0003] The purpose of this invention is to provide a large-scale modular combined five-axis rotary table device to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a large modular combined five-axis turntable device, comprising a two-axis turntable mechanism, a three-axis turntable mechanism one, a three-axis turntable mechanism two, and a turntable switching and positioning mechanism;

[0005] The turntable switching and positioning mechanism includes a linear guide rail assembly, a translation drive mechanism mounted on the linear guide rail assembly, and a rotary platform mechanism. The linear guide rail assembly includes three equally spaced parallel transverse guide rails and two parallel longitudinal guide rails perpendicular to the transverse guide rails. The two longitudinal guide rails are arranged along a direction extending from the outside of the three transverse guide rails and ending at the middle transverse guide rail, such that the two longitudinal guide rails intersect with two of the three transverse guide rails. The rotary platform mechanism is located at the intersection of the longitudinal guide rails and the transverse guide rails. The two-axis turntable mechanism is mounted on the two transverse guide rails on both sides of the middle transverse guide rail via the translation drive mechanism. The three-axis turntable mechanism one and the three-axis turntable mechanism two are respectively mounted on the two longitudinal guide rails via the translation drive mechanism.

[0006] The two-axis turntable mechanism includes an inner ring shaft system and an outer ring shaft system on both sides of the inner ring shaft system. The inner ring shaft system and the outer ring shaft system are respectively used to perform yaw rotation and pitch roll operations on the load placed on the inner ring shaft system.

[0007] The three-axis turntable mechanism one and the three-axis turntable mechanism two have the same structure. The three-axis turntable mechanism one includes a three-axis turntable outer ring shaft system, a three-axis turntable middle ring shaft system located at the top of the three-axis turntable outer ring shaft system, and a three-axis turntable inner ring shaft system located within the three-axis turntable middle ring shaft system. The three-axis turntable outer ring shaft system, the three-axis turntable middle ring shaft system, and the three-axis turntable inner ring shaft system are respectively used to perform roll rotation, pitch rotation, and yaw rotation operations on the load placed on the three-axis turntable inner ring shaft system.

[0008] The five-axis turntable device is spatially divided into a switching operation area and a working test area. The three transverse guide rails are located at the same end in the working test area. When switching to the five-axis turntable for testing, the translation drive mechanism and the rotary platform mechanism are operated. The three-axis turntable mechanism one or three-axis turntable mechanism two moves to the end of the transverse guide rail located in the middle in the working test area. The two-axis turntable mechanism is moved along the transverse guide rail into the working test area. The pitch axis of the three-axis turntable middle ring axis system of the three-axis turntable mechanism one or three-axis turntable mechanism two is aligned with the pitch axis of the two-axis turntable outer ring axis system of the two-axis turntable mechanism. The rotation centers of the three-axis turntable mechanism one or three-axis turntable mechanism two and the two-axis turntable mechanism are unified to achieve the unification of their mechanical references, so that subsequent control can be performed in the same coordinate system.

[0009] In a further embodiment, the transverse guide rail and the longitudinal guide rail have the same structure, both including a guide rail unit. The guide rail unit includes a guide rail base, on which a linear guide rail body is fixed. A slider is slidably fitted on the linear guide rail body, and a rack is also fixed on the guide rail base.

[0010] In a further embodiment, the translation drive mechanism includes a translation drive component one and a translation drive component two mounted on two transverse guide rails located on both sides of the transverse guide rail in the middle, and a translation drive component three and a translation drive component four mounted on two longitudinal guide rails. The translation drive components one, two, three and four have the same structure.

[0011] In a further embodiment, the translation drive assembly includes a translation drive platform, a translation drive motor, a translation drive reducer, and a translation drive gear. The translation drive platform is fixedly connected to an adjacent slider. The translation drive motor is located below the translation drive platform. The translation drive reducer is connected to the output end of the translation drive motor. The translation drive gear is connected to the output end of the translation drive reducer. The translation drive gear meshes with an adjacent rack.

[0012] In a further embodiment, the rotary platform mechanism includes rotary platform one, rotary platform two, rotary platform three, and rotary platform four disposed at the intersection of the longitudinal guide rail and the transverse guide rail, wherein rotary platform one, rotary platform two, rotary platform three, and rotary platform four have the same structure.

[0013] In a further embodiment, the rotary platform includes a rotary platform guide rail assembly and a rotary platform rotation shaft system. The rotary platform guide rail assembly includes a rotary platform base. The rotary platform base is fixed with rotary platform guide rails and connecting rack teeth that cooperate with the linear guide rail body and the rack. The rotary platform rotation shaft system includes a rotary motor, and the output end of the rotary motor is connected to the rotary platform base.

[0014] In a further embodiment, the outer ring axis system of the two-axis turntable includes a support base disposed on the translation drive platform, a two-axis turntable outer ring motor disposed on the support base, the output end of the two-axis turntable outer ring motor being connected to the outer ring shaft, one end of the outer ring shaft being connected to the inner frame, and an outer ring circular grating being disposed on one side of the outer ring shaft.

[0015] In a further embodiment, the inner ring shaft system of the two-axis turntable includes a two-axis turntable inner ring motor mounted on the inner frame. The output end of the two-axis turntable inner ring motor is connected to the inner ring shaft, and an inner ring circular grating is provided on the inner ring shaft.

[0016] In a further embodiment, an outer ring bearing assembly is provided between the support base and the outer ring shaft, and an inner ring bearing assembly is provided between the inner ring shaft and the inner frame.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention realizes the translation of the two-axis turntable mechanism, the three-axis turntable mechanism one, and the three-axis turntable mechanism two from the switching operation area to the working test area. The two-axis turntable mechanism, the three-axis turntable mechanism one, and the three-axis turntable mechanism two can be moved to the working test area for use individually, or the three-axis turntable can be combined with the two-axis turntable to form different five-axis turntables suitable for different working scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the two-axis rotary table mechanism of the present invention;

[0020] Figure 3 and Figure 4 This is a schematic diagram of the outer ring shaft system structure of the two-axis rotary table of the present invention;

[0021] Figure 5 This is a schematic diagram of the inner ring shaft system of the two-axis rotary table of the present invention;

[0022] Figure 6 This is a schematic diagram of the three-axis rotary table mechanism of the present invention;

[0023] Figure 7 This is a schematic diagram of the turntable switching and positioning mechanism of the present invention;

[0024] Figure 8 This is a schematic diagram of the linear guide rail assembly structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the installation structure of the translation drive component of the present invention;

[0026] Figure 10 This is a schematic diagram of the structure of the rotary platform of the present invention;

[0027] Figure 11 This is a schematic diagram of the five-axis turntable structure composed of a two-axis turntable mechanism and a three-axis turntable mechanism for moving to the working test area according to the present invention;

[0028] The attached figures are labeled as follows: 1. Two-axis turntable mechanism; 11. Two-axis turntable outer ring shaft system; 11. Support base; 111. Two-axis turntable outer ring motor; 112. Outer ring bearing assembly; 113. Outer ring shaft; 114. Inner frame; 115. Outer ring circular grating; 116. Two-axis turntable inner ring shaft system; 12. Two-axis turntable inner ring motor; 121. Inner ring bearing assembly; 122. Inner ring shaft; 123. Inner ring circular grating; 124. Three-axis turntable mechanism one; 2. Three-axis turntable outer ring shaft system; 21. Three-axis turntable middle ring shaft system; 22. Three-axis turntable inner ring shaft system; 23. Three-axis turntable mechanism two; 3. Turntable switching. Positioning mechanism 4, guide rail unit 41, guide rail base 411, linear guide rail body 412, slider 413, rack 414, translation drive assembly one 42, translation drive platform 421, translation drive motor 422, translation drive reducer 423, translation drive gear 424, translation drive assembly two 43, translation drive assembly three 44, translation drive assembly four 45, rotary platform one 46, rotary platform guide rail assembly 461, rotary platform rotary shaft system 462, rotary platform two 47, rotary platform three 48, rotary platform four 49. Detailed Implementation

[0029] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0030] Please see Figures 1-11The present invention provides a technical solution: a large modular combined five-axis turntable device, including a two-axis turntable mechanism 1, a three-axis turntable mechanism 1 2, a three-axis turntable mechanism 2 3 and a turntable switching and positioning mechanism 4;

[0031] The turntable switching and positioning mechanism 4 includes a linear guide rail assembly, a translation drive mechanism and a rotary platform mechanism mounted on the linear guide rail assembly. The linear guide rail assembly includes three parallel transverse guide rails arranged at equal intervals and two parallel longitudinal guide rails arranged perpendicular to the transverse guide rails. The two longitudinal guide rails are arranged along the direction extending from the outside of the three transverse guide rails and ending at the middle transverse guide rail among the three transverse guide rails, so that the two longitudinal guide rails are intersected with the two transverse guide rails among the three transverse guide rails. The rotary platform mechanism is located at the intersection of the longitudinal guide rails and the transverse guide rails. The two-axis turntable mechanism 1 is mounted on the two transverse guide rails on both sides of the middle transverse guide rail through the translation drive mechanism. The three-axis turntable mechanism 1 2 and the three-axis turntable mechanism 2 3 are respectively mounted on the two longitudinal guide rails through the translation drive mechanism.

[0032] The two-axis turntable mechanism 1 includes an inner ring shaft system 12 and an outer ring shaft system 11 on both sides of the inner ring shaft system 12. The inner ring shaft system 12 and the outer ring shaft system 11 are respectively used to perform yaw rotation and pitch roll operations on the load placed on the inner ring shaft system 12.

[0033] Three-axis turntable mechanism 1 (2) and three-axis turntable mechanism 2 (3) have the same structure. Three-axis turntable mechanism 1 (2) includes a three-axis turntable outer ring shaft system 21, a three-axis turntable middle ring shaft system 22 located at the top of the three-axis turntable outer ring shaft system 21, and a three-axis turntable inner ring shaft system 23 located within the three-axis turntable middle ring shaft system 22. The three-axis turntable outer ring shaft system 21, the three-axis turntable middle ring shaft system 22, and the three-axis turntable inner ring shaft system 23 are respectively used to perform roll rotation, pitch rotation, and yaw rotation operations on the load placed on the three-axis turntable inner ring shaft system 23. The three-axis turntable outer ring... The shaft system 21 and the inner ring shaft system 23 of the three-axis turntable have the same structure as the inner ring shaft system 12 of the two-axis turntable. The middle ring shaft system 22 of the three-axis turntable has the same structure as the outer ring shaft system 11 of the two-axis turntable. All three shaft systems adopt direct motor drive and closed-loop control of circular grating detection angle to achieve high-precision yaw, pitch and roll operation of the turntable load. The three-axis turntable mechanism 1 2 and the three-axis turntable mechanism 2 3 have the same structure, but the motor power of the three-axis turntable mechanism 1 2 and the three-axis turntable mechanism 2 3 are different, and they are suitable for different loads to meet the detection requirements of different loads.

[0034] The five-axis rotary table device is spatially divided into a switching operation area and a working test area. The three transverse guide rails are located at the same end in the working test area. When switching to the five-axis rotary table for testing, the translation drive mechanism and the rotary platform mechanism are operated. The three-axis rotary table mechanism 1 or 3 moves to the middle transverse guide rail located at one end of the working test area. The two-axis rotary table mechanism 1 is moved along the transverse guide rail into the working test area. The pitch axis of the three-axis rotary table middle ring axis system 22 of the three-axis rotary table mechanism 1 or 3 is aligned with the pitch axis of the two-axis rotary table outer ring axis system 11 of the two-axis rotary table mechanism 1. The rotation centers of the three-axis rotary table mechanism 1 or 3 and the two-axis rotary table mechanism 1 are unified, and the mechanical reference of the two is unified so that subsequent control can be performed in the same coordinate system.

[0035] In a further embodiment, the transverse guide rail and the longitudinal guide rail have the same structure, both including a guide rail unit 41. The guide rail unit 41 includes a guide rail base 411, a linear guide rail body 412 is fixed on the guide rail base 411, a slider 413 is slidably fitted on the linear guide rail body 412, and a rack 414 is also fixed on the guide rail base 411.

[0036] The above technical solution facilitates the sliding of slider 413 along linear guide body 412, wherein guide base 411 is fixed on the ground, and linear guide body 412 is fixed to guide base 411 with screws; rack 414 is fixed to guide base 411 with screws.

[0037] In a further embodiment, the translation drive mechanism includes a translation drive assembly 42 and a translation drive assembly 43 mounted on two transverse guide rails on both sides of the transverse guide rail located in the middle, and a translation drive assembly 44 and a translation drive assembly 45 mounted on two longitudinal guide rails. The translation drive assembly 42, the translation drive assembly 43, the translation drive assembly 44 and the translation drive assembly 45 have the same structure.

[0038] Through the above technical solution, the two-axis rotary table mechanism 1 can be easily moved by translation drive component 1 42 and translation drive component 2 43, and the three-axis rotary table mechanism 1 2 and the three-axis rotary table mechanism 2 3 can be easily moved by translation drive component 3 44 and translation drive component 45.

[0039] In a further embodiment, the translation drive assembly 42 includes a translation drive platform 421, a translation drive motor 422, a translation drive reducer 423, and a translation drive gear 424. The translation drive platform 421 is fixedly connected to the adjacent slider 413. The translation drive motor 422 is located below the translation drive platform 421. The translation drive reducer 423 is connected to the output end of the translation drive motor 422. The translation drive gear 424 is connected to the output end of the translation drive reducer 423. The translation drive gear 424 meshes with the adjacent rack 414.

[0040] Through the above technical solution, the translation drive platform 421 and the slider 413 are fixed with screws. The translation drive motor 422, the translation drive reducer 423 and the translation drive gear 424 are transmission components, which are installed on the translation drive platform 421. When the translation drive assembly 42 works, the torque output by the translation motor 422 is reduced in speed and increased in torque by the translation drive reducer 423 and then transmitted to the translation drive gear 424. The translation drive gear 424 meshes with the adjacent rack 414 and rotates, driving the entire translation drive assembly 42 to slide along the linear guide body 412.

[0041] In a further embodiment, the rotary platform mechanism includes rotary platform one 46, rotary platform two 47, rotary platform three 48 and rotary platform four 49 disposed at the intersection of the longitudinal guide rail and the transverse guide rail. Rotary platform one 46, rotary platform two 47, rotary platform three 48 and rotary platform four 49 have the same structure.

[0042] Through the above technical solution, the rotary platform 1 46, rotary platform 2 47, rotary platform 3 48 and rotary platform 49 cooperate to connect the adjacent horizontal guide rail and vertical guide rail, which facilitates the movement of the two-axis rotary table mechanism 1, the three-axis rotary table mechanism 1 2 and the three-axis rotary table mechanism 2 3.

[0043] In a further embodiment, the rotary platform 46 includes a rotary platform guide rail assembly 461 and a rotary platform rotation shaft system 462. The rotary platform guide rail assembly 461 includes a rotary platform base, on which rotary platform guide rails and connecting racks are fixed, which cooperate one-to-one with the linear guide rail body 412 and the rack 414. The rotary platform rotation shaft system 462 includes a rotary motor, and the output end of the rotary motor is connected to the rotary platform base.

[0044] Through the above technical solution, the rotary platform base is rotated by the rotary motor, realizing the rotation of the rotary platform base. This allows the rotary platform guide rail and the end of the connecting rack to be seamlessly spliced ​​with the adjacent linear guide rail body 412 and the end of the rack 414, enabling the slider 413 to move on the linear guide rail body 412 and the rotary platform guide rail, facilitating the movement of the two-axis rotary table mechanism 1, the three-axis rotary table mechanism 1 2, and the three-axis rotary table mechanism 2 3.

[0045] In a further embodiment, the outer ring axis system 11 of the two-axis turntable includes a support base 111 provided on the translation drive platform 421. The support base 111 is provided with a two-axis turntable outer ring motor 112. The output end of the two-axis turntable outer ring motor 112 is connected to the outer ring shaft 114. One end of the outer ring shaft 114 is connected to the inner frame 115. An outer ring circular grating 116 is provided on one side of the outer ring shaft 114.

[0046] Through the above technical solution, the weight of the parts on the support base 111 is supported, and the outer ring shaft 114 is rotated by the outer ring motor 112 of the two-axis turntable, so that the inner frame 115 rotates around the axis of the outer ring shaft 114. The pitch angle of the inner frame 115 is detected by the outer ring circular grating 116. An outer ring bearing assembly 113 is provided between the support base 111 and the outer ring shaft 114. The outer ring motor 112 of the two-axis turntable consists of a stator and a rotor. The stator is fixed on the support base 111, and the rotor is fixed to the outer ring shaft 114 by threads. The outer ring bearing assembly 113 consists of a pair of angular contact ball bearings and is installed between the support base 111 and the outer ring shaft 114. The inner frame 115 is fixed to the outer ring shaft 114 by threads. When the outer ring motor 112 of the two-axis turntable is energized and rotates, the outer ring shaft 114 connected to the rotor will rotate with the outer ring motor 112 of the two-axis turntable, so that the inner frame 115 rotates around the axis of the outer ring shaft 114.

[0047] In a further embodiment, the inner ring shaft system 12 of the two-axis turntable includes a two-axis turntable inner ring motor 121 disposed on the inner frame 115. The output end of the two-axis turntable inner ring motor 121 is connected to the inner ring shaft 123, and an inner ring circular grating 124 is disposed on the inner ring shaft 123.

[0048] Through the above technical solution, the inner ring motor 121 of the two-axis turntable drives the inner ring shaft 123 to rotate, thereby driving the load at the bottom of the inner ring shaft 123 to rotate. An inner ring bearing assembly 122 is provided between the inner ring shaft 123 and the inner frame 115. The inner ring motor 121 of the two-axis turntable consists of a stator and a rotor. The stator is fixed on the inner frame 115, and the rotor is fixed to the inner ring shaft 123 by threads. The inner ring bearing assembly 122 consists of a pair of angular contact ball bearings, which are installed on the inner frame 115 and between the inner ring shaft 123. The load is fixed to the inner ring shaft 123 by threads. The yaw angle of the load is detected by the inner ring circular grating 124. When the inner ring motor 121 of the two-axis turntable is energized and rotates, the inner ring shaft 123 connected to the motor rotor will rotate, ultimately causing the load to rotate around the axis of the inner ring shaft 123, realizing yaw rotation.

[0049] Taking the movement of moving the two-axis rotary table mechanism 1 and the three-axis rotary table mechanism 2 from the switching operation area to the working test area, so as to realize the movement of the three-axis rotary table to the center position of the two-axis rotary table to form a five-axis rotary table as an example, the movement process of the entire equipment is as follows:

[0050] 1) Control the synchronous movement of translation drive assembly 1 42 and translation drive assembly 2 43. That is, the output torque of translation motor 422 is reduced by translation drive reducer 423 and the torque is increased before being transmitted to translation drive gear 424. Translation drive gear 424 meshes with the adjacent rack 414 and rotates, driving the entire translation drive assembly 1 42 and translation drive assembly 2 43 to slide along the linear guide body 412, moving the two-axis turntable mechanism 1 on it to the working test area.

[0051] 2) Control the rotation of rotary platform 1 46 and rotary platform 2 47 by 90°, that is, drive the rotary platform base to rotate by rotary motor, so that the rotary platform base on rotary platform 1 46 and rotary platform 2 47 can rotate 90°, so that the rotary platform guide rail and connecting rack tooth end on rotary platform 1 46 and rotary platform 2 47 can be seamlessly spliced ​​with the adjacent linear guide body 412 and rack 414 end;

[0052] 3) Control the movement of the translation drive assembly 3 44, that is, the torque output by the translation motor 422 is reduced by the translation drive reducer 423 and the torque is increased before being transmitted to the translation drive gear 424. The translation drive gear 424 meshes with the adjacent rack 414 and rotates, driving the entire translation drive assembly 3 44 to slide along the linear guide body 412, and transporting the three-axis turntable mechanism 1 2 on it to the rotary platform 2 47.

[0053] 4) Control the rotation of the second rotary platform 47 by 90°, that is, drive the rotary platform base to rotate by the rotary motor, so that the rotation of the rotary platform base on the second rotary platform 47 is rotated by 90°, so that the rotary platform guide rail and the end of the connecting rack on the second rotary platform 47 are seamlessly spliced ​​with the adjacent linear guide rail body 412 and the end of the rack 414.

[0054] 5) Control the movement of the translation drive assembly 3 44. The output torque of the translation motor 422 is reduced by the translation drive reducer 423 and the torque is increased before being transmitted to the translation drive gear 424. The translation drive gear 424 meshes with the adjacent rack 414 and rotates, driving the entire translation drive assembly 3 44 to slide along the linear guide body 412, transporting the three-axis turntable mechanism 1 2 on it to the working test area. This makes the pitch axis of the middle ring shaft system 22 of the three-axis turntable mechanism 1 2 or the pitch axis of the outer ring shaft system 11 of the two-axis turntable mechanism 1 lie on the same axis, forming a five-axis turntable for testing.

[0055] It was subsequently discovered that neither of the existing two three-axis rotary tables met the operating conditions. A new three-axis rotary table mechanism 1 or 2 or 3 could be designed to work together with the existing two-axis rotary table mechanism 1 to form a new five-axis rotary table. Similarly, a new two-axis rotary table mechanism 1 could be designed to work together with the existing three-axis rotary table mechanism 1 or 3 to form a five-axis rotary table.

[0056] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A large modular combined five-axis rotary table device, characterized in that, It includes a two-axis turntable mechanism (1), a three-axis turntable mechanism one (2), a three-axis turntable mechanism two (3), and a turntable switching and positioning mechanism (4). The turntable switching and positioning mechanism (4) includes a linear guide rail assembly, a translation drive mechanism and a rotary platform mechanism provided on the linear guide rail assembly. The linear guide rail assembly includes three parallel transverse guide rails arranged at equal intervals and two parallel longitudinal guide rails arranged perpendicular to the transverse guide rails. The two longitudinal guide rails are arranged along the direction extending from the outside of the three transverse guide rails and ending at the middle transverse guide rail among the three transverse guide rails, so that the two longitudinal guide rails are intersected with the two transverse guide rails among the three transverse guide rails. The rotary platform mechanism is provided at the intersection of the longitudinal guide rails and the transverse guide rails. The two-axis turntable mechanism (1) is installed on the two transverse guide rails on both sides of the middle transverse guide rail through the translation drive mechanism. The three-axis turntable mechanism one (2) and the three-axis turntable mechanism two (3) are respectively installed on the two longitudinal guide rails through the translation drive mechanism. The two-axis turntable mechanism (1) includes an inner ring shaft system (12) and an outer ring shaft system (11) on both sides of the inner ring shaft system (12). The inner ring shaft system (12) and the outer ring shaft system (11) are respectively used to perform yaw rotation and pitch roll operations on the load placed on the inner ring shaft system (12). The three-axis turntable mechanism one (2) and the three-axis turntable mechanism two (3) have the same structure. The three-axis turntable mechanism one (2) includes a three-axis turntable outer ring shaft system (21), a three-axis turntable middle ring shaft system (22) located at the top of the three-axis turntable outer ring shaft system (21), and a three-axis turntable inner ring shaft system (23) located in the three-axis turntable middle ring shaft system (22). The three-axis turntable outer ring shaft system (21), the three-axis turntable middle ring shaft system (22), and the three-axis turntable inner ring shaft system (23) are respectively used to perform roll rotation, pitch rotation, and yaw rotation operations on the load placed on the three-axis turntable inner ring shaft system (23). The five-axis turntable device is spatially divided into a switching operation area and a working test area. The three transverse guide rails are located at the same end in the working test area. When switching to the five-axis turntable for testing, the translation drive mechanism and the rotary platform mechanism are operated. The three-axis turntable mechanism one (2) or the three-axis turntable mechanism two (3) moves to one end of the transverse guide rail located in the middle in the working test area. The two-axis turntable mechanism (1) is moved along the transverse guide rail into the working test area. The pitch axis of the three-axis turntable middle ring axis system (22) of the three-axis turntable mechanism one (2) or the three-axis turntable mechanism two (3) is aligned with the pitch axis of the two-axis turntable outer ring axis system (11) of the two-axis turntable mechanism (1). The rotation centers of the three-axis turntable mechanism one (2) or the three-axis turntable mechanism two (3) and the two-axis turntable mechanism (1) are aligned, so that the mechanical references of the two are unified, so that subsequent control can be performed in the same coordinate system.

2. The large modular combined five-axis rotary table device according to claim 1, characterized in that: The transverse and longitudinal guide rails have the same structure, both including a guide rail unit (41). The guide rail unit (41) includes a guide rail base (411), a linear guide rail body (412) is fixed on the guide rail base (411), a slider (413) is slidably fitted on the linear guide rail body (412), and a rack (414) is also fixed on the guide rail base (411).

3. The large modular combined five-axis rotary table device according to claim 2, characterized in that: The translation drive mechanism includes translation drive component one (42) and translation drive component two (43) installed on two transverse guide rails located on both sides of the transverse guide rail in the middle, and translation drive component three (44) and translation drive component four (45) installed on two longitudinal guide rails. The translation drive component one (42), translation drive component two (43), translation drive component three (44) and translation drive component four (45) have the same structure.

4. A large modular combined five-axis rotary table device according to claim 3, characterized in that: The translation drive assembly (42) includes a translation drive platform (421), a translation drive motor (422), a translation drive reducer (423), and a translation drive gear (424). The translation drive platform (421) is fixedly connected to the adjacent slider (413). The translation drive motor (422) is located below the translation drive platform (421). The translation drive reducer (423) is connected to the output end of the translation drive motor (422). The translation drive gear (424) is connected to the output end of the translation drive reducer (423). The translation drive gear (424) meshes with the adjacent rack (414).

5. A large modular combined five-axis rotary table device according to claim 4, characterized in that: The rotary platform mechanism includes rotary platform one (46), rotary platform two (47), rotary platform three (48) and rotary platform four (49) located at the intersection of the longitudinal guide rail and the transverse guide rail. Rotary platform one (46), rotary platform two (47), rotary platform three (48) and rotary platform four (49) have the same structure.

6. A large modular combined five-axis rotary table device according to claim 5, characterized in that: The rotary platform (46) includes a rotary platform guide rail assembly (461) and a rotary platform rotation shaft system (462). The rotary platform guide rail assembly (461) includes a rotary platform base. The rotary platform base is fixed with rotary platform guide rails and connecting rack teeth that cooperate one-to-one with the linear guide rail body (412) and the rack (414). The rotary platform rotation shaft system (462) includes a rotary motor. The output end of the rotary motor is connected to the rotary platform base.

7. A large modular combined five-axis rotary table device according to claim 4, characterized in that: The two-axis turntable outer ring shaft system (11) includes a support base (111) provided on the translation drive platform (421). The support base (111) is provided with a two-axis turntable outer ring motor (112). The output end of the two-axis turntable outer ring motor (112) is connected to the outer ring shaft (114). One end of the outer ring shaft (114) is connected to the inner frame (115). An outer ring circular grating (116) is provided on one side of the outer ring shaft (114).

8. A large modular combined five-axis rotary table device according to claim 7, characterized in that: The inner ring shaft system (12) of the two-axis turntable includes a two-axis turntable inner ring motor (121) provided on the inner frame (115). The output end of the two-axis turntable inner ring motor (121) is connected to the inner ring shaft (123). The inner ring shaft (123) is provided with an inner ring circular grating (124).

9. A large modular combined five-axis rotary table device according to claim 8, characterized in that: An outer ring bearing assembly (113) is provided between the support base (111) and the outer ring shaft (114), and an inner ring bearing assembly (122) is provided between the inner ring shaft (123) and the inner frame (115).

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