Rotary platform device and CNC machining apparatus

Abstract

The application relates to the technical field of machining equipment, and discloses a rotary platform device and a CNC machining equipment. The rotary platform device comprises a support module and a C-axis module. The C-axis module comprises a C-axis turntable and a first driving assembly. The C-axis turntable is arranged on the support module and can rotate relative to the support module around a first rotation axis. A C-axis turntable is arranged in the C-axis turntable and can rotate around a second rotation axis. The outer circumferential surface of the C-axis turntable is provided with a first meshing part protruding in the radial direction and an avoiding opening formed in the inside and penetrating along the second rotation axis. The first driving assembly is arranged on the C-axis turntable and is provided with a second meshing part on the output end for meshing transmission with the first meshing part. The first rotation axis is inclined or perpendicular to the second rotation axis. The thickness of the C-axis turntable of the rotary platform device is small, the cutter can be conveniently inserted into the avoiding opening and does not interfere with the C-axis turntable. Therefore, the product does not need to be clamped for multiple times, the machining quality and machining efficiency are improved, and the labor intensity is low.

Description

Technical Field

[0001] This application belongs to the field of mechanical processing equipment technology, specifically relating to a rotary platform device and CNC machining equipment. Background Technology

[0002] In the field of CNC machining, the axial thickness of the C-axis in existing five-axis machines is too thick. When a product is clamped on the C-axis, it is impossible to machine the back side of the product after machining the front or four sides. To complete the machining of the back side of the product, the product needs to be clamped at least twice and processed through at least two steps. However, multiple clampings cause the product to constantly change the machining reference, which affects the machining quality, increases the labor intensity of operators, and reduces machining efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a rotary platform device and CNC machining equipment to solve the problems in the prior art where the axial thickness of the C-axis is too thick, requiring constant conversion of machining references during product processing, which affects quality, increases the labor intensity of operators, and results in low processing efficiency.

[0004] To achieve the above objectives, the first aspect of this application provides a rotating platform device, comprising:

[0005] Support module; and

[0006] The C-axis module includes a C-axis turntable and a first drive assembly. The C-axis turntable is disposed on the support module and can rotate relative to the support module about a first rotation axis. The C-axis turntable is provided with a C-axis turntable that can rotate about a second rotation axis. The outer peripheral surface of the C-axis turntable is provided with a first engagement part that protrudes radially and forms a clearance opening that passes through along the second rotation axis inside. The first drive assembly is disposed on the C-axis turntable and has a second engagement part at its output end that engages with the first engagement part for transmission.

[0007] The first rotation axis is inclined or perpendicular to the second rotation axis.

[0008] As a further improvement to the above technical solution:

[0009] In some embodiments, the first drive assembly includes a rotary drive member and a transmission member, the rotary drive member having a first drive shaft, the first drive shaft being drivenly connected to one end of the transmission member, and a second engagement portion being formed on the transmission member; the first drive shaft and the transmission member are rotatable about the first rotation axis.

[0010] In some embodiments, the first meshing portion includes a protruding gear body with bevel teeth, and the second meshing portion is a transmission bevel gear that meshes with the bevel teeth;

[0011] Alternatively, the first meshing part is a turbine gear tooth, and the second meshing part is a worm gear tooth that meshes with the turbine gear tooth;

[0012] Alternatively, the first meshing part is a roller bearing on the driven disc, and the second meshing part is a driving cam gear tooth that meshes with the roller bearing;

[0013] Alternatively, the first meshing part is a crown gear tooth, and the second meshing part is a drive gear tooth that meshes with the crown gear.

[0014] In some embodiments, the support module is provided with a hollow shaft, and one side of the C-axis turntable is connected to one end of the hollow shaft along the radial direction and is provided with a through hole. The through hole communicates with the hollow cylindrical cavity of the hollow shaft and forms a through hole.

[0015] The first drive shaft and the transmission component are both arranged inside the through hole.

[0016] In some embodiments, the C-axis rotary table further includes:

[0017] The turntable body rotates in conjunction with the support module. The turntable body has a hollow area in the middle that runs through the second rotation axis. The C-axis turntable is rotatably mounted on the turntable body and located in the hollow area.

[0018] The first limiting cover plate is disposed on one side of the turntable body;

[0019] The second limiting cover plate is disposed on the other side of the turntable body;

[0020] The first limiting cover plate and the second limiting cover plate form a clamping and limiting space for the C-axis turntable.

[0021] In some embodiments, the C-axis module further includes at least one brake assembly disposed on the C-axis turntable, with the brake end of the brake assembly facing the outer peripheral wall of the C-axis turntable.

[0022] In some embodiments, the braking assembly includes:

[0023] A telescopic drive component is mounted on the C-axis turntable, with the telescopic rod of the drive component facing the outer peripheral wall of the C-axis turntable; and

[0024] A brake head is disposed at the brake end of the brake assembly and connected to the telescopic rod.

[0025] In some embodiments, the rotary platform device further includes an A-axis module, the A-axis module comprising:

[0026] The A-axis is rotatably mounted on the support module and is connected to the C-axis turntable via a transmission mechanism; and

[0027] The second drive assembly is mounted on the support module, and the second drive shaft of the second drive assembly is connected to the transmission A shaft.

[0028] In some embodiments, the support module includes a first support base and a second support base arranged in alignment, and the C-axis turntable is arranged between the first support base and the second support base.

[0029] To achieve the above objectives, a second aspect of this application provides a CNC machining equipment, including a mobile platform and a rotary platform device according to the first aspect above;

[0030] The support module is disposed on the mobile platform, which includes at least one of the X-axis, Y-axis and Z-axis degrees of freedom.

[0031] Compared with the prior art, this application provides a rotary platform device and CNC machining equipment that have at least the following beneficial effects:

[0032] In the rotary platform device provided in this application, the second engaging portion of the first drive assembly engages with the first engaging portion, which protrudes radially on the outer circumferential surface of the C-axis turntable, to drive the C-axis turntable to rotate around the second rotation axis. Simultaneously, the entire C-axis module can also rotate around the first rotation axis. Because the first engaging portion protrudes radially along the C-axis turntable, the transmission engagement between the first and second engaging portions does not occupy the axial dimension of the C-axis turntable, allowing for a smaller axial thickness of the C-axis turntable.

[0033] When the rotary platform device provided in this application is applied to CNC machining equipment, by clamping the product to be processed on the C-axis turntable, the back of the product facing the C-axis turntable can be directly processed by the tool through the clearance opening of the C-axis turntable. Since the thickness of the C-axis turntable is small, it is easy for the tool to extend into the clearance opening without interfering with the C-axis turntable. In this way, the back of the product can be processed without clamping the product multiple times, which improves the processing quality and processing efficiency, while reducing labor intensity.

[0034] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0036] Figure 1 This is a three-dimensional structural diagram of a rotating platform device provided in an embodiment of this application;

[0037] Figure 2 for Figure 1 A partial sectional view along the AA direction;

[0038] Figure 3 for Figure 2 A magnified view of a portion of point B in the middle;

[0039] Figure 4 for Figure 1 A partial sectional view along the CC direction;

[0040] Figure 5 for Figure 1 A partial sectional view along the DD direction.

[0041] Explanation of reference numerals in the attached figures

[0042] 100. Support module; 110. First support base; 111. Hollow shaft; 112. Second bearing; 120. Second support base; 130. Base; 131. Clearance groove;

[0043] 200. C-axis module; 210. C-axis turntable; 211. Turntable body; 212. First limiting cover plate; 213. Second limiting cover plate; 214. Third bearing; 215. C-axis turntable; 2150. First meshing part; 2151. Gear body; 2152. Bevel gear; 2153. Clearance opening; 2154. Mounting hole; 216. Seal; 220. First drive assembly; 221. Rotary drive component; 2210. First drive shaft; 222. Transmission component; 2220. Second meshing part; 223. Coupling; 230. First bearing; 240. Brake assembly; 241. Telescopic drive component; 242. Brake head;

[0044] 300. A-axis module; 310. Second drive assembly; 320. Transmission A-axis;

[0045] 400. Gas-liquid converter;

[0046] a) First axis of rotation; b) Second axis of rotation. Detailed Implementation

[0047] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0048] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0049] Example

[0050] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a rotary platform device that can be applied in CNC machining equipment to meet the multi-directional machining needs of products.

[0051] The rotating platform device provided in this embodiment includes a support module 100 and a C-axis module 200. The C-axis module 200 includes a C-axis turntable 210 and a first drive assembly 220. The C-axis turntable 210 is disposed on the support module 100 and can rotate relative to the support module 100 about a first rotation axis a. The C-axis turntable 210 has a C-axis turntable 215 that can rotate about a second rotation axis b. The outer peripheral surface of the C-axis turntable 215 has a radially protruding first engagement portion 2150 and an internal clearance opening 2153 that passes through along the second rotation axis b. The first drive assembly 220 is disposed on the C-axis turntable 210, and a second engagement portion 2220 that engages and drives the first engagement portion 2150 is provided at the output end of the first drive assembly 220. The first rotation axis a is inclined or perpendicular to the second rotation axis b.

[0052] Therefore, the C-axis turntable 215 can both rotate around the second rotation axis b and rotate around the first rotation axis a following the C-axis turntable 210. It should be noted that the first rotation axis a and the second rotation axis b described above are two hypothetical axes. The first rotation axis a is typically defined as the A-axis in a 5-axis device, and the second rotation axis b is typically defined as the C-axis. Thus, when a fixture is installed on the C-axis turntable 215 to clamp a product, the product has the freedom to rotate around the first rotation axis a and rotate around the second rotation axis b.

[0053] It is understood that the rotary platform device provided in this embodiment drives the C-axis turntable 215 to rotate by engaging the second engaging portion 2220 in the first drive assembly 220 with the first engaging portion 2150 that protrudes radially on the outer circumferential surface of the C-axis turntable 215. Simultaneously, the entire C-axis module 200 can also rotate around the first rotation axis a. Since the first engaging portion 2150 protrudes radially along the C-axis turntable 215, the transmission engagement between the first engaging portion 2150 and the second engaging portion 2220 does not occupy the axial dimension (direction of the second rotation axis b) of the C-axis turntable 215, allowing for a smaller axial thickness of the C-axis turntable 215.

[0054] Thus, when applied to CNC machining equipment, by clamping the product to be processed on one side of the C-axis turntable 215, the back of the product facing the C-axis turntable 215 can be directly processed by the tool through the clearance opening 2153 of the C-axis turntable 215. Since the thickness of the C-axis turntable 215 is small, it is easy for the tool to enter the clearance opening 2153 without interfering with the C-axis turntable 215. In this way, the back of the product can be processed without multiple clamping of the product, improving the processing quality and efficiency, while reducing labor intensity.

[0055] To more clearly describe the technical solution of this application, the rotating platform device provided in this embodiment is described in detail below:

[0056] Please see Figure 1 and Figure 2 The aforementioned first drive assembly 220 includes a rotary drive member 221 and a transmission member 222 disposed at the output end. The rotary drive member 221 has a first drive shaft 2210, and the transmission member 222 is provided with a second engagement portion 2220. The rotary drive member 221 is arranged on the side of the support module 100 away from the C-axis turntable 210 and is connected to the transmission member 222 through the first drive shaft 2210.

[0057] Since the first rotation axis a is inclined or perpendicular to the second rotation axis b, that is, the first drive shaft 2210 and the transmission component 222 of the first drive assembly 220 are inclined or perpendicular to the rotation axis of the C-axis turntable 215, the space occupied by the first drive assembly 220 in the axial direction of the C-axis turntable 215 is reduced. Therefore, as the driving part of the C-axis turntable 215, the space occupied by the first drive assembly 220 in the axial direction of the C-axis turntable 215 can also be made smaller, thereby further reducing the interference between the tool and the entire C-axis module 200 when the tool moves.

[0058] Understandably, if the first rotation axis a is parallel to the second rotation axis b, then the drive shaft of the first drive assembly is parallel to the rotation axis of the C-axis turntable. The corresponding meshing structure is, for example, a cylindrical gear structure. The drive shaft, the active cylindrical gear on the drive shaft, and the drive component located at one end of the drive shaft will be arranged in the thickness direction of the C-axis turntable, thus occupying a large space and making the overall thickness of the C-axis module large.

[0059] In this embodiment, the first rotation axis a is inclined or perpendicular to the second rotation axis b. The meshing structure can be, for example, a bevel gear structure (straight bevel gear or helical bevel gear), a worm gear structure (straight worm or spiral worm), a cam roller structure, or a crown gear structure, with corresponding driving bevel gear, driving worm or driving spiral worm, driving cam, and driving gear. Since none of them extend along the axis of the C-axis turntable, the dimension in the thickness direction of the C-axis turntable is reduced.

[0060] Furthermore, the support module 100 is provided with a hollow shaft 111; one side of the C-axis turntable 210 along its radial direction is a connecting part, which is connected to one end of the hollow shaft 111, and the connecting part is provided with a through hole. The hollow shaft 111 is provided with a hollow cylindrical cavity along the first rotation axis a, and the through hole communicates with the hollow cylindrical cavity to form a through hole. The first drive shaft 2210 and the transmission component 222 are provided in the through hole, and the transmission component 222 and the C-axis turntable 210 are rotated together by a first bearing 230.

[0061] In this embodiment, specifically, the support module 100 includes a first support seat 110 and a second support seat 120 arranged in alignment, and a C-axis turntable 210 is arranged between the first support seat 110 and the second support seat 120. The first support seat 110 is provided with the hollow shaft 111, and the hollow shaft 111 and the first support seat 110 are rotatably coupled through a second bearing 112.

[0062] One end of the hollow shaft 111 is connected to the flange of the C-axis turntable 210, and the other end of the hollow shaft 111 is connected to the housing of the rotary drive component 221. Thus, the rotary drive component 221, the hollow shaft 111, and the C-axis turntable 210 can rotate synchronously around the first rotation axis a. The first drive shaft 2210 passes through the hollow cylindrical cavity of the hollow shaft 111 and is connected to the transmission component 222 via a coupling 223.

[0063] Please refer to the following: Figure 2In some embodiments, the second meshing portion 2220 and the first meshing portion 2150 are tooth meshing drives, such as bevel gear meshing drives or worm gear meshing drives, etc. The bevel teeth can be straight teeth or helical teeth, etc. When a bevel gear structure is used, both the first meshing portion 2150 and the second meshing portion 2220 are bevel gear structures. The tooth surface of the first meshing portion 2150 is inclined to the second rotation axis b of the C-axis turntable 215, and the tooth surface of the second meshing portion 2220 is inclined to the first rotation axis a of the transmission member 222. In this case, the second rotation axis b and the first rotation axis a can be perpendicular or inclined. When a worm gear structure is used, the C-axis turntable 215 is a worm, the transmission member 222 is a worm, the first meshing portion 2150 is a worm gear tooth, and the second meshing portion 2220 is a worm gear tooth. In this case, the second rotation axis b is perpendicular or inclined to the first rotation axis a.

[0064] In other embodiments, when the present application employs a cam-roller engagement structure, the first engagement part 2150 is a roller bearing on the driven disc, and the second engagement part 2220 is a gear tooth of the driving cam.

[0065] In some other embodiments, when the present application employs a crown gear structure, the first meshing portion 2150 is a tooth of the crown gear, and the second meshing portion 2220 is a tooth of the driving gear. It should be understood that the above are merely illustrative examples and are not intended to limit the scope of protection of this application.

[0066] In this embodiment, as Figure 2 As shown, the second meshing part 2220 and the first meshing part 2150 adopt a bevel gear meshing transmission. The axis of the first drive shaft 2210 is coaxial with the first rotation axis a. Thus, the first rotation axis a and the second rotation axis b are perpendicular to each other, resulting in higher transmission efficiency. The axial thickness of the C-axis turntable 215 can be made smaller. Furthermore, both the first drive shaft 2210 and the transmission component 222 extend radially along the C-axis turntable 215, without occupying the axial space of the entire C-axis turntable 210. This makes the overall axial thickness of the C-axis module 200 smaller and the structure more compact, thereby preventing interference between the tool and the entire C-axis module 200 during machining and improving machining flexibility.

[0067] Specifically, the first meshing part 2150 includes a protruding gear body 2151, and a bevel tooth 2152 is provided on the inclined surface of the gear body 2151; wherein, the second meshing part 2220 is a transmission bevel gear that meshes with the bevel tooth 2152.

[0068] Optionally, the rotary drive 221 is an electric motor or a hydraulic motor. The electric motor can be a servo motor or a stepper motor.

[0069] Please see Figure 1 , Figure 2 and Figure 3Furthermore, the C-axis turntable 210 also includes a turntable body 211, a first limiting cover plate 212, and a second limiting cover plate 213. The turntable body 211 is flange-connected to the hollow shaft 111 in the first support base 110, thereby enabling the turntable body 211 to rotate relative to the first support base 110 via the second bearing 112. The turntable body 211 has a hollow area in the middle that runs through the second rotation axis b, and the C-axis turntable 215 is rotatably mounted on the turntable body 211 and located in the hollow area.

[0070] A first limiting cover plate 212 is disposed on one side of the turntable body 211; a second limiting cover plate 213 is disposed on the other side of the turntable body 211; wherein, the first limiting cover plate 212 and the second limiting cover plate 213 form a clamping and limiting space for the C-axis turntable 215. In this way, the first limiting cover plate 212 and the second limiting cover plate 213 can restrict the axial displacement of the C-axis turntable 215.

[0071] Furthermore, a third bearing 214 is provided between the first limiting cover plate 212, the second limiting cover plate 213 and the C-axis turntable 215 to reduce the rotational friction of the C-axis turntable 215. Specifically, steps for positioning the third bearing 214 are formed at both ends of the C-axis turntable 215 along the second rotation axis b.

[0072] In some embodiments, a sealing element 216 is provided between the first limiting cover plate 212, the second limiting cover plate 213 and the outer peripheral wall of the C-axis turntable 215, for sealing the lubricating oil in the third bearing 214 to prevent leakage.

[0073] Please see Figure 1 and Figure 4 In this embodiment, the C-axis module 200 further includes at least one brake assembly 240, which is disposed on the C-axis turntable 210, with the brake end of the brake assembly 240 facing the outer peripheral wall of the C-axis turntable 215. The brake assembly 240 can restrict the rotation of the C-axis turntable 215 by abutting against the outer peripheral wall of the C-axis turntable 215 with its brake end.

[0074] Optionally, the outer peripheral wall of the C-axis turntable 215 is provided with friction patterns to increase friction, wherein the friction patterns can be formed as raised stripes or recessed grooves.

[0075] In some embodiments, multiple brake components 240 may be provided, and the multiple brake components 240 are distributed around the C-axis turntable 215 around the second rotation axis b. When the multiple brake components 240 operate simultaneously, the C-axis turntable 215 can be locked, thereby improving the reliability of braking.

[0076] Specifically, the brake assembly 240 includes a telescopic drive member 241 and a brake head 242. The telescopic drive member 241 is mounted on the turntable body 211 of the C-axis turntable 210, with its telescopic rod facing the outer peripheral wall of the C-axis turntable 215. The brake head 242 is located at the brake end of the brake assembly 240 and connected to the telescopic rod. The brake head 242 abuts against the outer peripheral wall of the C-axis turntable 215 and forms a frictional engagement with it, thereby achieving the braking function.

[0077] Optionally, the telescopic drive component 241 can be a hydraulic cylinder, which has a greater thrust, thereby ensuring the reliability of the brake. The hydraulic cylinder can be controlled by a pneumatic-hydraulic converter 400, which converts pneumatic signals into hydraulic signals, using compressed air as a power source to output hydraulic oil to drive the cylinder to move smoothly.

[0078] Please see Figure 1 and Figure 5 In some embodiments, the rotary platform device further includes an A-axis module 300. The A-axis module 300 includes a drive A-axis 320 and a second drive assembly 310. The drive A-axis 320 is rotatably mounted on a second support base 120 in the support module 100. The drive A-axis 320 is driveably connected to the turntable body 211 of the C-axis turntable 210. The second drive assembly 310 is mounted on the second support base 120, and its second drive shaft is drively connected to the drive A-axis 320. The axis of the drive A-axis 320 is coaxial with the first rotation axis a.

[0079] Thus, the A-axis module 300 can drive the rotary drive 221, the hollow shaft 111, and the C-axis turntable 210 to rotate synchronously around the first rotation axis a.

[0080] Furthermore, in this embodiment, the first drive shaft 2210, the C-axis turntable 210, and the transmission A-axis 320 of the rotary drive 221 are arranged on the same plane, so that the A-axis module 300 and the C-axis turntable 210 can rotate at any angle without the problem of wire harness entanglement.

[0081] In some embodiments, the support module 100 further includes a base 130, with a first support 110 and a second support 120 arranged on the base 130. The base 130 is provided with a relief groove 131 corresponding to the C-axis turntable 210 to prevent interference between the C-axis turntable 210 and the base 130 when the turntable 210 is rotated.

[0082] When the rotary platform device provided in this embodiment is applied to a CNC machining equipment, the product to be processed can be fixed on the C-axis turntable 215 using a clamping fixture. The C-axis turntable 215 is provided with mounting holes 2154 for fixing the clamping fixture. It is understood that the hollow design of the C-axis turntable 215, with a clearance opening 2153 for tool clearance, allows for 360° rotation of the product under the drive of the A-axis module 300, thus enabling processing of both the front and back sides of the product in a single operation.

[0083] Furthermore, the C-axis turntable 215 can drive the product to rotate around the second rotation axis b, and brake and fix the product at any angle through the brake assembly 240. With the drive cooperation of the A-axis module 300, the product's four-sided contour surface can be cut at any angle.

[0084] Before operation, the brake assembly 240 is initially locked by the "brake structure" built into the servo motor (rotary drive 221), and then locked and positioned in conjunction with the hydraulically driven brake assembly 240. This can reduce the machining angle offset caused by the rotation allowance and improve the machining and positioning accuracy.

[0085] Please see Figures 1 to 5 This embodiment also provides a CNC machining equipment. The CNC machining equipment includes a moving platform and a rotary platform device according to the above embodiment.

[0086] The support module 100 is mounted on a mobile platform, which includes at least two of the following translation degrees of freedom: X-axis, Y-axis, and Z-axis.

[0087] In this embodiment, the mobile platform includes three degrees of freedom: X-axis, Y-axis, and Z-axis. Thus, in conjunction with the rotation of the first rotation axis a and the second rotation axis b of the rotating platform device, a 5-axis device is formed.

[0088] It should be noted that, in this application, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0089] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A rotating platform device, characterized by include: The support module (100) is provided with a hollow shaft (111), and the hollow shaft (111) has a hollow column cavity along the first rotation axis (a); and The C-axis module (200) includes a C-axis turntable (210) and a first drive assembly (220). The C-axis turntable (210) is disposed on the support module (100) and is rotatable relative to the support module (100) about a first rotation axis (a). The C-axis turntable (210) is provided with a C-axis turntable (215) that is rotatable about a second rotation axis (b). The outer peripheral surface of the C-axis turntable (215) is provided with a radially protruding first engagement portion (2150) and forms a drive assembly (220) inside the turntable. A clearance opening (2153) through which the axis (b) passes is provided. The first drive assembly (220) is disposed on the C-axis turntable (210) and a second engagement part (2220) is provided at the output end of the first drive assembly (220) to engage and transmit power with the first engagement part (2150). The product to be processed is clamped on one side of the C-axis turntable (215). The cutting tool can process the back side of the product facing the C-axis turntable (215) through the clearance opening (2153) of the C-axis turntable (215). The first drive assembly (220) includes a rotary drive (221) and a transmission component (222) disposed at the output end. The rotary drive (221) has a first drive shaft (2210), and the transmission component (222) is provided with a second engagement part (2220). The rotary drive (221) is arranged on the side of the support module (100) away from the C-axis turntable (210) and is connected to the transmission component (222) through the first drive shaft (2210) through the hollow shaft (111). The axis of the first drive shaft (2210) is coaxial with the first rotation axis (a). The first rotation axis (a) is inclined or perpendicular to the second rotation axis (b). The rotary drive (221), the hollow shaft (111), and the C-axis turntable (210) can rotate synchronously around the first rotation axis (a).

2. The rotating platform apparatus of claim 1, wherein, The first meshing part (2150) includes a protruding gear body (2151), on which bevel teeth (2152) are provided, and the second meshing part (2220) is a transmission bevel gear that meshes with the bevel teeth (2152); Alternatively, the first meshing part (2150) is a roller bearing on the driven disc, and the second meshing part (2220) is a driving cam gear tooth meshing with the roller bearing; or, the first meshing part (2150) is a crown gear tooth, and the second meshing part (2220) is a driving gear tooth meshing with the crown gear.

3. The rotating platform apparatus of claim 1, wherein, The C-axis turntable (210) is connected to one end of the hollow shaft (111) along the radial direction and is provided with a through hole. The through hole communicates with the hollow cylindrical cavity of the hollow shaft (111) and forms a through hole. The first drive shaft (2210) and the transmission component (222) are both arranged in the through hole.

4. The rotating platform apparatus of claim 1, wherein, The C-axis rotary table (210) also includes: The turntable body (211) is rotatably coupled with the support module (100). The turntable body (211) has a hollow area in the middle that runs through the second rotation axis (b). The C-axis turntable (215) is rotatably mounted on the turntable body (211) and located in the hollow area. The first limiting cover plate (212) is disposed on one side of the turntable body (211); The second limiting cover plate (213) is disposed on the other side of the turntable body (211); The first limiting cover plate (212) and the second limiting cover plate (213) form a clamping and limiting space for the C-axis turntable (215).

5. The rotating platform apparatus of claim 1, wherein, The C-axis module (200) also includes at least one brake assembly (240), which is disposed on the C-axis turntable (210), with the brake end of the brake assembly (240) facing the outer peripheral wall of the C-axis turntable (215).

6. A rotating platform device according to claim 5, wherein, The brake assembly (240) includes: A telescopic drive member (241) is disposed on the C-axis turntable (210), with the telescopic rod of the telescopic drive member (241) facing the outer peripheral wall of the C-axis turntable (215); and A brake head (242) is disposed at the brake end of the brake assembly (240) and connected to the telescopic rod.

7. The rotating platform apparatus of claim 1, wherein, The rotating platform device further includes an A-axis module (300), which comprises: The transmission A-axis (320) is rotatably mounted on the support module (100) and is connected to the C-axis turntable (210) via transmission; and The second drive assembly (310) is disposed on the support module (100), and the second drive shaft of the second drive assembly (310) is connected to the transmission A shaft (320).

8. The rotating platform device according to any one of claims 1-7, characterized in that, The support module (100) includes a first support seat (110) and a second support seat (120) arranged in alignment, and the C-axis turntable (210) is arranged between the first support seat (110) and the second support seat (120).

9. A CNC machining equipment, characterized in that, Includes a mobile platform and a rotating platform device according to any one of claims 1-8; The support module (100) is disposed on the mobile platform, which includes at least one of the X-axis, Y-axis and Z-axis degrees of freedom.

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