Rotary joint device suitable for five-axis swing head

Abstract

The rotary joint device comprises a shaft C and a shaft A which are axially arranged in series, each rotating assembly comprises a rotating shaft sleeve, an outer shell and a medium transmission shaft, and a plurality of independent cavities are formed between the medium transmission shafts and the rotating shaft sleeves; the medium interface conversion module is respectively communicated with the input ends of the independent cavities through axial through channels; a plurality of connectors are arranged at the position of the swing spindle, a plurality of medium input pipelines are arranged in the rotating shaft sleeve, each medium input pipeline is communicated with the corresponding connector and the output end of one independent cavity, a transfer platform is formed through the independent cavities, and a transmission path of media such as hydraulic oil and cooling liquid is divided into two relatively static parts. In the process that the A shaft swings by + / -120 degrees, the connector, the medium input pipeline and the output end of each independent cavity are relatively static; and the input end of each independent cavity and the medium interface conversion module are relatively static, so that the pipeline winding risk is fundamentally eliminated.

Description

Technical Field

[0001] This utility model relates to the field of five-axis turntable manufacturing technology, and more specifically, to a rotary joint device suitable for five-axis oscillating heads. Background Technology

[0002] The oscillating head mechanism needs to oscillate 20±120° with the A-axis and efficiently transmit signals through multiple media (hydraulic oil, coolant, compressed air, electrical signals, optical fibers, etc.). Traditional rotary joints and piping layouts face the following core challenges:

[0003] 1. The contradiction between the degree of freedom of motion and the dynamic interference of the pipeline: the traditional solution adopts the combination of "fixed end connector + flexible hose + external medium delivery device". When the A-axis swings, the flexible hose connected to the external medium delivery device is forced to bend and twist repeatedly in a limited space.

[0004] 2. The conflict between dynamic sealing and motion reliability: the flexible hose is subjected to alternating bending stress during repeated oscillations, and its lifespan follows the "Miner linear cumulative damage law"; the connection between the hose and the connector uses a ferrule seal, and under combined motion, the sealing surface will produce micro-displacement, resulting in media leakage.

[0005] 3. Maintenance costs and availability challenges: tangled tubing makes it difficult to quickly locate leaks. Utility Model Content

[0006] In view of this, the present invention proposes a rotary joint device suitable for a five-axis oscillating head, comprising: a C-axis 10 and an A-axis 20 arranged in series axially; each set of the rotating components includes: a rotating sleeve 40 connected to the oscillating main shaft 30; a housing 50 fixedly connected to the C-axis 10; a media transmission shaft 60 nested within the housing 50; and multiple independent chambers 61 axially distributed between the media transmission shaft 60 and the rotating sleeve 40; a media interface conversion module 70 disposed on the outer wall of the housing 50, which is connected to the input end of each independent chamber 61 through an axial through-channel 72; and multiple joints provided at the oscillating main shaft 30. 32. The rotating shaft sleeve 40 is provided with multiple medium input pipes 34 connected to the swing spindle 30. Each medium input pipe 34 is connected to a corresponding connector 32 and the output end of an independent chamber 61. The multiple independent chambers 61 distributed axially form a transfer platform, dividing the transmission path of hydraulic oil, coolant and other media into two relatively stationary parts. During the swing of the A-axis at 20±120°, the connector 32, the medium input pipe 34 and the output end of each independent chamber 61 are relatively stationary; the input end of each independent chamber 61 and the medium interface conversion module 70 are relatively stationary, fundamentally eliminating the risk of pipe entanglement.

[0007] A rotary joint device suitable for a five-axis oscillating head includes: a C-axis 10 and an A-axis 20 arranged in series axially, wherein the C-axis 10 drives the A-axis 20 to achieve full circumferential motion, and the A-axis 20 is connected to an oscillating main shaft 30 through two symmetrically distributed sets of rotating components; each set of rotating components includes: a rotating shaft sleeve 40 connected to the oscillating main shaft 30, an outer shell 50 fixedly connected to the C-axis 10, and a medium transmission shaft 60 nested within the outer shell 50, wherein the medium transmission shaft 60 and the rotating shaft sleeve 40 form multiple axially distributed independent chambers 61; a medium interface conversion module 70 disposed on the outer wall of the outer shell 50, which is connected to the input end of each independent chamber 61 through an axial through-channel 72; multiple connectors 32 are provided at the oscillating main shaft 30, and multiple medium input pipelines 34 connected to the oscillating main shaft 30 are provided inside the rotating shaft sleeve 40, each medium input pipeline 34 connecting to a corresponding connector 32 and the output end of an independent chamber 61.

[0008] Furthermore, the independent chamber 61 has a hollow annular structure.

[0009] Furthermore, the multiple independent chambers 61 are arranged at intervals.

[0010] Furthermore, a radial isolation rib 62 is provided between adjacent independent chambers 61 to separate adjacent independent chambers 61.

[0011] Furthermore, a sealing structure 63 is provided at the radial isolation rib 62 to prevent the media in adjacent independent chambers 61 from mixing after leakage.

[0012] In some embodiments, the media interface conversion module 70 includes: a plurality of media distribution pipes 71, the number of which is the same as the number of independent chambers 61, and the media distribution pipes 71 are connected to the independent chambers 61 in a one-to-one correspondence.

[0013] Furthermore, the medium distribution pipe 71 is provided with a fixed base for connection to an external pipeline.

[0014] In some embodiments, the medium input pipeline 34 is embedded with a channel flow monitoring unit, which uses fiber optic sensing to detect the medium parameters of each channel in real time.

[0015] In some embodiments, the swing spindle 30 includes an outer swing spindle housing 31, and the swing spindle housing 31 is provided with a distribution pipe 33 for correspondingly connecting the connector 32 and the medium input pipe 34.

[0016] Furthermore, the connector 32 is a quick-connect adapter, which can be quickly connected to the distribution pipe 33 one-to-one through the connecting pipe.

[0017] Furthermore, the C-axis 10 has a hollow rotating shaft 11 in the middle. The external pipeline passes through the hollow structure and is connected one-to-one with the multiple media distribution pipes 71 of the media interface conversion module 70 on the outer wall of the outer shell 50. The external pipeline is used to transport media such as hydraulic oil and coolant.

[0018] The beneficial effects of this utility model are as follows: This utility model proposes a rotary joint device suitable for a five-axis oscillating head, comprising: a C-axis 10 and an A-axis 20 arranged in series axially; each set of the rotating components includes: a rotating shaft sleeve 40 connected to the oscillating main shaft 30; a housing 50 fixedly connected to the C-axis 10; a media transmission shaft 60 nested within the housing 50; and multiple axially distributed independent chambers 61 formed between the media transmission shaft 60 and the rotating shaft sleeve 40; a media interface conversion module 70 disposed on the outer wall of the housing 50, which is connected to the input end of each independent chamber 61 through an axial through-channel 72; and multiple... Each connector 32 has multiple media input pipes 34 connected to the swing spindle 30 within the rotating shaft sleeve 40. Each media input pipe 34 connects to a corresponding connector 32 and the output end of an independent chamber 61. The multiple axially distributed independent chambers 61 form a transfer platform, dividing the transmission path of media such as hydraulic oil and coolant into two relatively stationary parts. During the swing of the A-axis at 20±120°, the connector 32, the media input pipes 34, and the output ends of each independent chamber 61 are relatively stationary; the input ends of each independent chamber 61 and the media interface conversion module 70 are relatively stationary, fundamentally eliminating the risk of pipe entanglement. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the rotary joint device of the present invention, which is applicable to a five-axis oscillating head.

[0020] Figure 2 This is a perspective view of the swing spindle of the rotary joint device applicable to a five-axis oscillating head according to this utility model.

[0021] Figure 3 This is a cross-sectional view of the A-axis 20 and the swing spindle of the rotary joint device applicable to a five-axis oscillating head according to this utility model.

[0022] Figure 4 This is a cross-sectional view of the C-axis of the rotary joint device of the present invention, which is applicable to a five-axis oscillating head.

[0023] Explanation of main component symbols

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model.

[0025] C-axis 10, Rotary axis 11, A-axis 20, Swing spindle 30, Swing spindle housing 31, Connector 32, Distribution pipe 33, Medium input pipe 34, Rotary shaft sleeve 40, Housing 50, Medium transmission shaft 60, Independent chamber 61, Radial isolation rib 62, Sealing structure 63, Medium interface conversion module 70, Medium distribution pipe 71, Axial through channel 72.

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0027] The following embodiments are described to aid in understanding this application. These embodiments are not, and should not be, construed in any way as limiting the scope of protection of this application.

[0028] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).

[0029] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections. Example 1:

[0030] like Figure 1-3As shown, a rotary joint device suitable for a five-axis oscillating head includes: a C-axis 10 and an A-axis 20 arranged in series axially, wherein the C-axis 10 drives the A-axis 20 to achieve full circumferential motion, and the A-axis 20 is connected to the oscillating main shaft 30 through two symmetrically distributed sets of rotating components; each set of rotating components includes: a rotating sleeve 40 connected to the oscillating main shaft 30, an outer shell 50 fixedly connected to the C-axis 10, and a medium transmission shaft 60 nested within the outer shell 50, wherein the medium transmission shaft 60 and the rotating sleeve 40 form multiple axially distributed independent chambers 61; and a medium interface conversion module 70 disposed on the outer wall of the outer shell 50, which is axially penetrating Channel 72 is connected to the input end of each independent chamber 61; multiple connectors 32 are provided at the swing spindle 30, and multiple media input pipes 34 connected to the swing spindle 30 are provided inside the rotating shaft sleeve 40. Each media input pipe 34 is connected to a corresponding connector 32 and the output end of an independent chamber 61. The independent chamber 61 is a hollow annular structure. Multiple independent chambers 61 are arranged at intervals. Radial isolation ribs 62 are provided between adjacent independent chambers 61 to separate adjacent independent chambers 61. A sealing structure 63 is provided at the radial isolation ribs 62 to prevent the media from mixing after leakage from adjacent independent chambers 61.

[0031] The media interface conversion module 70 includes: multiple media distribution pipes 71, the number of which is the same as the number of independent chambers 61, and the media distribution pipes 71 are connected to the independent chambers 61 in a one-to-one correspondence. Each media distribution pipe 71 is provided with a fixed base for connection to an external pipeline. The media input pipeline 34 is embedded with a channel flow monitoring unit, which uses fiber optic sensing to detect the media parameters of each channel in real time.

[0032] The swing spindle 30 includes an outer swing spindle housing 31. The swing spindle housing 31 is provided with a distribution pipe 33 for correspondingly connecting the connector 32 and the medium input pipe 34. The connector 32 is a quick-connect adapter, which can quickly connect to the distribution pipe 33 through the connecting pipe.

[0033] like Figure 4 As shown, the C-axis 10 has a hollow rotating shaft 11 in the middle. The external pipeline passes through the hollow structure and is connected one-to-one with the multiple media distribution pipes 71 of the media interface conversion module 70 on the outer wall of the outer shell 50. The external pipeline is used to transport media such as hydraulic oil and coolant.

[0034] The beneficial effects of this utility model are as follows: This utility model proposes a rotary joint device suitable for a five-axis oscillating head, comprising: a C-axis 10 and an A-axis 20 arranged in series axially; each set of the rotating components includes: a rotating shaft sleeve 40 connected to the oscillating main shaft 30; a housing 50 fixedly connected to the C-axis 10; a media transmission shaft 60 nested within the housing 50; and multiple axially distributed independent chambers 61 formed between the media transmission shaft 60 and the rotating shaft sleeve 40; a media interface conversion module 70 disposed on the outer wall of the housing 50, which is connected to the input end of each independent chamber 61 through an axial through-channel 72; and multiple... Each connector 32 has multiple media input pipes 34 connected to the swing spindle 30 within the rotating shaft sleeve 40. Each media input pipe 34 connects to a corresponding connector 32 and the output end of an independent chamber 61. The multiple axially distributed independent chambers 61 form a transfer platform, dividing the transmission path of media such as hydraulic oil and coolant into two relatively stationary parts. During the swing of the A-axis at 20±120°, the connector 32, the media input pipes 34, and the output ends of each independent chamber 61 are relatively stationary; the input ends of each independent chamber 61 and the media interface conversion module 70 are relatively stationary, fundamentally eliminating the risk of pipe entanglement.

[0035] Although this application discloses several aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art. Various modifications and improvements can be made without departing from the concept of this application, and these all fall within the scope of protection of this application. The various aspects and embodiments disclosed in this application are for illustrative purposes only and are not intended to limit this application. The actual scope of protection of this application is determined by the claims.

Claims

1. A rotary joint device suitable for a five-axis oscillating head, comprising: A C-axis (10) and an A-axis (20) are axially connected in series. The C-axis (10) drives the A-axis (20) to achieve full circumferential motion. The A-axis (20) is connected to the oscillating main shaft (30) through two symmetrically distributed sets of rotating components. The rotating components in each set include: a rotating sleeve (40) connected to the oscillating main shaft (30); a housing (50) fixedly connected to the C-axis (10); and a medium transmission shaft (60) nested within the housing (50). The medium transmission shaft (60) and the rotating sleeve (40) are connected in series. Multiple independent chambers (61) are formed axially distributed between them; a medium interface conversion module (70) is provided on the outer wall of the outer shell (50), which is connected to the input end of each independent chamber (61) through an axial through channel (72); multiple connectors (32) are provided at the swing spindle (30), and multiple medium input pipelines (34) connected to the swing spindle (30) are provided in the rotating shaft sleeve (40), and each medium input pipeline (34) is connected to a corresponding connector (32) and the output end of an independent chamber (61).

2. The rotary joint device for a five-axis oscillating head as described in claim 1, characterized in that: The independent chamber (61) is a hollow annular structure, and multiple independent chambers (61) are arranged at intervals.

3. The rotary joint device for a five-axis oscillating head as described in claim 1, characterized in that: Radial isolation ribs (62) are provided between adjacent independent chambers (61) to separate adjacent independent chambers (61).

4. The rotary joint device for a five-axis oscillating head as described in claim 3, characterized in that: A sealing structure (63) is provided at the radial isolation rib (62) to prevent the media from mixing after leakage from adjacent independent chambers (61).

5. The rotary joint device for a five-axis oscillating head as described in claim 1, characterized in that: The media interface conversion module (70) includes: multiple media distribution pipes (71), the number of which is the same as the number of independent chambers (61), and the media distribution pipes (71) are connected to the independent chambers (61) one by one.

6. The rotary joint device for a five-axis oscillating head as described in claim 5, characterized in that: The medium distribution pipe (71) is provided with a fixed base for connection to an external pipeline.

7. The rotary joint device for a five-axis oscillating head as described in claim 1, characterized in that: The medium input pipeline (34) is embedded with a channel flow monitoring unit, which uses fiber optic sensing to detect the medium parameters of each channel in real time.

8. The rotary joint device for a five-axis oscillating head as described in claim 1, characterized in that: The swing spindle (30) includes an outer swing spindle housing (31), and the swing spindle housing (31) is provided with a distribution pipe (33) for correspondingly connecting the connector (32) and the medium input pipe (34).

9. The rotary joint device for a five-axis oscillating head as described in claim 8, characterized in that: The connector (32) is a quick-connect adapter, which can be quickly connected to the distribution pipeline (33) one by one through the connecting pipeline.

10. The rotary joint device for a five-axis oscillating head as described in claim 1, characterized in that: The C-axis (10) has a hollow rotating shaft (11) in the middle. The external pipeline passes through the hollow structure and is connected one-to-one with the multiple media distribution pipes (71) of the media interface conversion module (70) on the outer wall of the outer shell (50). The external pipeline is used to transport media such as hydraulic oil and coolant.

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