A slip ring arrangement

Abstract

The application discloses a slip ring device, which comprises a water and gas slip ring, a shell and an electric slip ring. The electric slip ring comprises an electric brush group and an electric slip ring rotor module. Signals are transmitted from an electric connector, a wire to the electric brush group and independently to an electric rail slide, and then transmitted out through a back wire. The water and gas slip ring comprises a water and gas slip ring flange fixing part, a mandrel body and a water and gas slip ring rotor. The water and gas slip ring rotor is located in a hole in the electric slip ring rotor module. Connectors on the water and gas slip ring flange fixing part are connected with a mandrel outflow hole, an annular flow channel, a transverse flow guide channel and a rotor flow channel on the corresponding mandrel body through an axial flow channel, and the signals are transmitted out through a rotor outflow hole. The device is used for blowing gas or cooling other mechanisms on the surface of a processed part. The slip ring device can realize synchronous and infinite rotation of the electric slip ring rotor module and the water and gas slip ring rotor, and can realize stable transmission of gas, water, power and signals, and transmission of laser from the center. The device has the advantages of small size, light weight and convenient installation.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and in particular to a slip ring device. Background Technology

[0002] Laser 3D machining is widely used in automotive, aerospace, and military production, and is a technology for processing complex curved 3D parts. Laser 3D machining requires cooling the lenses in the laser beam, air blowing on the surface of the workpiece, and various power supplies and signals. The complex curved surfaces and high processing efficiency demand that the slip ring device be able to rotate continuously indefinitely, be lightweight, small in size, and stable and reliable. Existing slip ring devices for 3D machining sometimes use a pipeline-wound core method, sometimes an external optical path transmission method, which cannot achieve continuous rotation indefinitely, or use a method where water slip rings and electric slip rings are completely separated, resulting in a large and heavy slip ring device.

[0003] Therefore, a slip ring device is needed that can rotate indefinitely, while also being small in size, lightweight, easy to install, and stable and reliable. Summary of the Invention

[0004] This invention provides a slip ring device that can pass through water, electricity, and air and can rotate indefinitely.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A slip ring device includes a water-air slip ring, a housing, and an electric slip ring. The electric slip ring includes a brush assembly and an electric slip ring rotor module. The brush assembly is fixed to the housing, and the electric slip ring rotor module can rotate within the housing and always maintain contact with the brush assembly. The water-air slip ring includes a water-air slip ring flange fixing component, a mandrel body, and a water-air slip ring rotor. The water-air slip ring flange fixing component is fixed to the housing, the mandrel body is fixed to the water-air slip ring flange fixing component, and the water-air slip ring rotor is rotatably sleeved on the mandrel body and located within the inner hole of the electric slip ring rotor module. The water-air slip ring rotor and the electric slip ring rotor rotate synchronously. The water-air slip ring flange fixing component is provided with several joints and several flange flow channels, and the mandrel body has several... The axial flow channel has several mandrel outlet holes on its outer edge. The flange flow channel is connected to the joint, and the axial flow channel connects the flange flow channel and the mandrel outlet holes. The inner side of the water-air slip ring rotor has several annular flow channels that communicate with the mandrel outlet holes. Each annular flow channel forms a sealed cavity with the outer edge of the mandrel body when the water-air slip ring rotor and the mandrel body rotate relative to each other. Each annular flow channel has several transverse guide channels that communicate with it in the radial direction, and the outer side of the transverse guide channels is sealed. The water-air slip ring rotor has several rotor flow channels in the axial direction. The rotor flow channels and transverse guide channels are connected in sequence and are connected to each annular flow channel. The bottom of the water-air slip ring rotor has rotor outlet holes that are connected to each rotor flow channel.

[0007] In one embodiment, the electric slip ring rotor module is coaxial with the circular inner hole of the housing, and the inner hole of the water-air slip ring is coaxial with the inner hole of the electric slip ring.

[0008] In one embodiment, the water-air slip ring fixing component is a water-air slip ring flange fixing component, the water-air slip ring flange fixing component has a flange through hole at its center, the mandrel body has a mandrel through hole at its center, the flange through hole and the mandrel through hole are completely concentric to form the central hole of the water-air slip ring; the central hole of the water-air slip ring is a laser optical path channel, the water-air slip ring flange fixing component has a flange flow channel inside, and the flange flow channel connects the joint and the axial flow channel.

[0009] In one embodiment, the water-air slip ring rotor includes an upper rotor and a lower rotor, which are fixedly connected and each has a rotor flow channel, and the rotor flow channels of the upper rotor and the lower rotor are connected to each other.

[0010] In one embodiment, an upper bearing and a lower bearing are fitted at both ends of the mandrel body, and the water-air slip ring rotor is fitted on the upper bearing and the lower bearing, so that the water-air slip ring rotor can rotate around the mandrel body.

[0011] In one embodiment, each annular flow channel is provided with an upper sealing ring and a lower sealing ring on both sides, and the annular flow channel, the outer edge of the mandrel body, the upper sealing ring, and the lower sealing ring form a cavity that remains sealed when the water-air slip ring rotor and the mandrel body rotate relative to each other.

[0012] In one embodiment, the connector includes several main air connectors and air-water connectors. The main air connectors flow through corresponding axial flow channels, mandrel outlet holes, annular flow channels, transverse guide channels, and rotor flow channels to the rotor outlet hole, and are used to blow air onto the surface of the parts. The air-water connectors flow through corresponding axial flow channels, mandrel outlet holes, annular flow channels, transverse guide channels, and rotor flow channels to the rotor outlet hole, and are used to cool the lenses and power mechanism.

[0013] In one embodiment, the electric slip ring rotor module includes a rotary insulating base, several electric rail slides, several partition plates, and a cover. The rotary insulating base has a hollow structure inside, with several wire grooves formed radially on its inner side. The electric rail slides and partition plates are alternately fitted onto the rotary insulating base. The upper cover plate encapsulates the electric rail slides and partition plates inside the rotary insulating base. Several wires are fixed in the wire grooves and connected to the electric rail slides.

[0014] In one embodiment, the brush assembly includes a brush mounting strip, a brush pressure plate, brush pins, a plurality of left brushes, and a plurality of right brushes. The left and right brushes are symmetrically mounted on both sides of the brush mounting strip and communicate with the brush pins. The brush pins of the upper and lower layers are separated from each other by the concave groove of the brush pressure plate.

[0015] In one embodiment, the housing includes a circular cover, a mounting module, and a sealing plate. Several encoder aviation plugs, several motor temperature detection aviation plugs, and several power cord aviation plugs are arranged side by side on the rear side of the mounting module. All plugs are arranged in a vertical line. The wiring of the plugs is connected to the brush pins in sequence. The brush group is connected to the support plate in the mounting module. The mounting module is connected to the circular cover. The left and right brushes of the brush group are simultaneously pressed onto the electric rail slide of the electric slip ring rotor module and separated by partition plates at each layer.

[0016] The beneficial effects of the present invention are: the slip ring device of the present invention, by setting up a water-air slip ring, a shell, and an electric slip ring, and through the specific structure and connection relationship of the water-air slip ring, the shell, and the electric slip ring, enables the electric slip ring rotor module and the water-air slip ring rotor to achieve infinite rotation under the action of external power, and at the same time can achieve functions such as stable transmission of air and water, power supply, and signals. It is also small in size, light in weight, easy to install, and stable and reliable. Attached Figure Description

[0017] Figure 1 This is a three-dimensional assembly diagram of the slip ring device according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 The diagram shows the structure of the water-air slip ring in the slip ring device.

[0019] Figure 3 for Figure 1 The internal cross-section of the water-air slip ring in the slip ring device shown.

[0020] Figure 4 for Figure 1 The diagram shows the assembly of the water-air slip ring in the slip ring device.

[0021] Figure 5 for Figure 1 The diagram shows the structure of the electric slip ring in the slip ring device.

[0022] Figure 6 for Figure 1 An exploded perspective view of the slip ring device shown.

[0023] In the diagram, the components are: water-air slip ring 100, main air connector 101, air-water connector 103, flange connection hole 105, water-air slip ring flange fastener 106, flange through hole 107, spindle body 113, spindle axial flow channel 110, upper bearing 111, lower bearing 114, water slip ring rotor 120, annular flow channel 121, transverse guide channel 124, rotor flow channel 126, mounting module 201, brush assembly 310, brush mounting strip 311, brush pressure plate 312, brush pin 313, left brush 314, right brush 315, electric slip ring rotor module 320, electric rail slide 322, separator 323, and rotary insulation seat 324. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] Please see Figure 1 In this embodiment of the invention, a slip ring device comprises a water-air slip ring 100, a housing 200, an electric slip ring 300, and a slip ring detection device 400. The water-air slip ring 100 is fitted inside the central hole of the electric slip ring 300, which is also fitted inside the housing 200. The detection device 400 is connected to a connector on the water-air slip ring 100 to detect leaks in the slip ring.

[0026] Please see Figure 2 , Figure 3 , Figure 4 The water-air slip ring 100 mainly includes a main air connector 101 (used for blowing air onto the surface of the parts), several air-water connectors 103 (used for cooling the lens and power mechanism; classified by medium, such as air connectors if the flowing medium is air, and water connectors if the flowing medium is water), a leak detection connector 102, a spindle connection hole 104, a flange connection hole 105, a water-air slip ring flange fastener 106 (or other types of water-air slip ring fasteners), a flange through hole 107, several flange flow channels 108, a spindle axial flow channel 110, an upper bearing 111, several spindle outlet holes 112, a spindle body 113, a lower bearing 114, a spindle center hole 115, an upper rotor 125, a lower rotor 127, several annular flow channels 121, an upper sealing ring 122, a lower sealing ring 123, several transverse guide channels 124, and several rotor flow channels 126.

[0027] Please see Figure 3The flange through hole 107 is completely concentric with the mandrel center hole 115, forming the entire water-air slip ring center hole 109. The water-air slip ring flange fixing member 106 is bolted to the mandrel body 113 through the mandrel connecting hole 104 and the threaded hole on the mandrel body 113, and the flange flow channel 108 is completely aligned with the mandrel axial flow channel 110. The water-air slip ring flange fixing member 106 is surrounded by a main air connector 101 and several air-water connectors 103, and a leak detection connector 102 is also provided. The main gas connector 101 and several gas-water connectors 103 are independently connected to several flange channels 108. The main gas connector 101 is also independently connected to the three flange channels 108 (or other multiple channels) of the corresponding water-air slip ring flange fixing component 106, and is also independently connected to the three mandrel axial channels 110 (or other multiple channels) of the corresponding mandrel body 113. At the same time, it converges and connects to the corresponding annular channel 121 through the mandrel outlet hole 112. Because the medium flow rate of this channel is large, the annular channel 121 corresponding to this channel needs to be wider than the annular channels corresponding to other airflows. The outer side of the annular channel is connected to three transverse guide channels 124 (or other multiple transverse guide channels 124), and also corresponds to multiple rotor channels 126 and rotor outlet holes 128. The main gas connector 101 is equipped with a pressure sensor to monitor the main gas pressure. The air-water connector 103 is independently connected to the flange flow channel 108 of the corresponding water-air slip ring flange fixing component 106, and independently connected to the axial flow channel 110 of the corresponding spindle body 113. It converges and connects to the corresponding annular flow channel 121 through the spindle outlet hole 112. The outer side of the annular flow channel is connected to the corresponding transverse guide channel 124, the corresponding rotor flow channel 126, and the rotor outlet hole 128.

[0028] For example, the main gas medium is input through the main gas connector 101, simultaneously and independently flowing into the three flange flow channels 108, then into the three spindle axial flow channels 110, and simultaneously flowing into the annular flow channel 121 through the independent spindle outlet holes 112. After being collected in the annular flow channel 121, it flows from the three transverse guide channels 124 to the three rotor flow channels 126 and out through the three rotor outlet holes 128. This example is only for illustrating the principle, but it is not limited to three channels; it can be two channels or other multiple channels.

[0029] The flange flow channel 108 and the spindle axial flow channel 110 are both of several kinds and are independently aligned in sequence. The upper rotor 125 and the lower rotor 127 are connected by bolts. The upper rotor 125 and the lower rotor 127 together form a water-lubricating ring rotor 120. The upper rotor 125 and the lower rotor 127 each have several independent annular flow channels 121. The annular flow channels 121 correspond to the spindle outlet holes 112. The outer side of the annular flow channels 121 has a rotor transverse guide channel 124, which is sealed with a plug to prevent the medium from flowing out from the side. The water-cooled rotor 120 has a rotor flow channel 126 on its wall. The rotor flow channel 126 is connected to the rotor transverse guide channel 124. The spindle body 113 is pressed into the central hole of the rotor 120 and forms a corresponding cavity with the annular flow channel 121, the upper sealing ring 122 and the lower sealing ring 123. Under external power, the rotor 120 rotates infinitely around the spindle body 113 through the upper bearing 111 and the lower bearing 114.

[0030] While rotating, the cooling water medium or gas medium flows independently from the gas-water connector 103 into the flange flow channel 108, independently into the spindle axial flow channel 110, independently into the annular flow channel 121 through the spindle outlet hole 112, independently into the rotor flow channel 126 through the rotor transverse guide channel 124, and flows out through the rotor outlet hole 128.

[0031] Please refer to Figure 5 The aforementioned slip ring 300 mainly includes a brush assembly 310 and a slip ring rotor module 320. The slip ring rotor module 320 consists of a rotary insulating base 324, several electric rail slides 322, several separators 323, and a cover 321. The electric rail slides 322 and separators 323 are alternately fitted onto the rotary insulating base 324. The cover 321 has an outer diameter larger than the electric rail slides 322 and the separators 323, and is bolted to the rotary insulating base 324, encapsulating the electric rail slides 322 and separators 323 inside the rotary insulating base 324. Each electric rail slide 322 corresponds to the wiring of different signals. The rotary insulating base 324 has a hollow central hole structure so that the slip ring rotor 120 can be fitted into the central hole and installed concentrically with it. The outer wall of the rotary insulating seat 324 has a radial groove 325. The conductor 326 includes several branch lines, which are independently connected to each electric rail slide 322 on the rear side through the groove 325.

[0032] The brush assembly 310 comprises a brush mounting strip 311, a brush pressure plate 312, brush leads 313, several left brushes 314, and several right brushes 315. The left brushes 314 and right brushes 315 are symmetrically mounted on both sides of the brush mounting strip 311 and are connected to the brush leads 313. The brush leads of the upper and lower layers are separated from each other by the concave groove of the brush pressure plate 312.

[0033] Please combine Figure 1 , Figure 5 , Figure 6 As shown, the outer casing 200 includes a circular cover 210, a mounting module 201, and a sealing plate 207. The brush assembly 310 is connected and fixed to the intermediate support plate 211 in the mounting module 201 by bolts. Several encoder aviation plugs 202, several motor temperature detection aviation plugs 203, and several power cord aviation plugs 204 are arranged side by side on the rear side of the mounting module 201. All plugs are arranged in a vertical line on the rear side of the mounting module 201. The wiring of the aviation plugs is connected to the brush pins 313 in sequence. The mounting module 201 is installed on the front of the circular cover 210 by bolts. The left brush 314 and right brush 315 of the brush assembly 310 are simultaneously pressed onto the electric rail slide 322 of the electric slip ring rotor module 320 and separated by a separator 323.

[0034] The motor power supply and signal are introduced through several encoder aviation plugs 202, several motor temperature detection aviation plugs 203, and several power cord aviation plugs 204. The signals are transmitted to the brush pins 313 through wires. The brush pins 313 divide the signals into dual channels and transmit them to the left brush 314 and the right brush 315. The signals are then transmitted to the electric rail slide 322 in the electric slip ring rotor module 320. The electric rail slide 322 transmits the signals to the wires 326. The wires 326 are composed of several branch lines, and each branch line enables independent transmission of each signal.

[0035] Please refer to Figure 1 , Figure 6 The slip ring device is vertically fixed to the rotating flange of the 3D five-axis machining device through bolt holes 209. The electric slip ring rotor module 320 is connected to the side of the power flange of the 3D five-axis machining device through hole 327. The water slip ring rotor 120 is connected to the front of the power flange device of the 3D five-axis machining head through connecting hole 129 with bolts. The water slip ring rotor 120 is fitted into the central inner hole 328 of the electric slip ring 300 and remains coaxial and concentric. The water-air slip ring flange fixing member 106 is fixed to the upper part of the outer shell 209. The spindle body 113 is fixed on the water-air slip ring flange fixing member 106. The brush group 310 is fixed on the mounting module 201. When the power flange of the 3D five-axis machining device rotates infinitely, it drives the electric slip ring rotor module 320 and the water slip ring rotor 120 to rotate around the spindle body 113. At the same time, the laser emitted by the 3D five-axis machining head passes through the water-air slip ring central hole 109 coaxially from top to bottom vertically.

[0036] The main gas medium and water-gas medium flow through the joints arranged around the water-gas slip ring flange fixing member 106, through the flange mandrel axial flow channel 110 to the rotor flow channel 126, and then flow out through the rotor outlet hole 128. They then flow through the internal flow channel of the three-dimensional five-axis power flange to supply the processing gas of the three-dimensional five-axis machining device and to cool the lens or provide internal pressure protection. The power supply and encoder, temperature signal line and power are input via the aviation plug arranged in the mounting module 201, and independently transmitted to the electric slip ring rotor module 320 via the brush group 310. Through the branch lines in the wires 326, they are transmitted to the motor power, position encoder, upper and lower limit, anti-collision, and other signals of the three-dimensional five-axis machining device.

[0037] The slip ring detection device 400 is connected to a connector 102 of the water-air slip ring flange fixing component 106. The slip ring detection device 400 is equipped with a flow meter to detect slip ring leakage. The slip ring detection device 400 may also be omitted.

[0038] With the above structure, the slip ring device is vertically fixed to other devices through bolt holes 209, the electric slip ring rotor module 320 is connected to other power devices through bolts through holes 327, and the upper rotor 125 and lower rotor 127 are connected to other power devices through bolts through holes 129. The electric slip ring rotor module 320, upper rotor 124 and lower rotor 127 can rotate infinitely under the action of external power, and can realize functions such as stable transmission of air, water, power, and signals.

Claims

1. A slip ring device, characterized in that, The system includes a water-air slip ring, a housing, and an electric slip ring. The electric slip ring comprises a brush assembly and an electric slip ring rotor module. The brush assembly is fixed to the housing, and the electric slip ring rotor module can rotate within the housing and always maintain contact with the brush assembly. The water-air slip ring includes a water-air slip ring flange fixing component, a mandrel body, and a water-air slip ring rotor. The water-air slip ring flange fixing component is fixed to the housing, the mandrel body is fixed to the water-air slip ring flange fixing component, and the water-air slip ring rotor is rotatably fitted onto the mandrel body and located within the inner hole of the electric slip ring rotor module. The water-air slip ring rotor rotates synchronously with the electric slip ring rotor. The water-air slip ring flange fixing component has several joints and several flange flow channels, and the mandrel body has several axial flow channels inside. The water-air slip ring rotor has several mandrel outlet holes on its outer edge, and the flange flow channel is connected to the joint. The axial flow channel connects the flange flow channel and the mandrel outlet holes. The inner side of the water-air slip ring rotor has several annular flow channels that communicate with the mandrel outlet holes. Each annular flow channel forms a sealed cavity with the outer edge of the mandrel body when the water-air slip ring rotor and the mandrel body rotate relative to each other. Each annular flow channel has several transverse guide holes that communicate with it in the radial direction. The outer side of the transverse guide channels is sealed. The water-air slip ring rotor has several rotor flow channels in the axial direction. The rotor flow channels are connected to the transverse guide channels in sequence and are connected to each annular flow channel. The bottom of the water-air slip ring rotor has rotor outlet holes that are connected to each rotor flow channel.

2. The slip ring device according to claim 1, characterized in that, The electric slip ring rotor module is coaxial with the circular inner hole of the outer shell, the water-air slip ring center hole is coaxial with the inner hole of the electric slip ring, the water-air slip ring rotor is installed inside the inner hole of the electric slip ring, and the water-air slip ring center hole is a laser optical path channel.

3. The slip ring device according to claim 1, characterized in that, The water-air slip ring flange fixing component has a flange through hole at its center, and the mandrel body has a mandrel through hole at its center. The flange through hole and the mandrel through hole are completely concentric, forming the central hole of the water-air slip ring. The laser beam injected by the three-dimensional five-axis machining head passes through the central hole of the water-air slip ring coaxially and concentrically from top to bottom vertically.

4. The slip ring device according to claim 1, characterized in that, The water-air slip ring rotor includes an upper rotor and a lower rotor, which are fixedly connected and each has a rotor flow channel. The rotor flow channels of the upper rotor and the lower rotor are connected to each other.

5. The slip ring device according to claim 1, characterized in that, The mandrel body is fitted with an upper bearing and a lower bearing at both ends, and the water-air slip ring rotor is fitted with the upper bearing and the lower bearing, so that the water-air slip ring rotor can rotate around the mandrel body.

6. The slip ring device according to claim 1, characterized in that, Each annular flow channel is provided with an upper sealing ring and a lower sealing ring on both sides. The annular flow channel, the outer edge of the mandrel body, the upper sealing ring, and the lower sealing ring form a cavity that remains sealed when the water-air slip ring rotor and the mandrel body rotate relative to each other.

7. The slip ring device according to claim 1, characterized in that, The connector includes several main air connectors and air-water connectors. The main air connectors flow through corresponding axial flow channels, mandrel outlet holes, annular flow channels, transverse guide channels, and rotor flow channels to the rotor outlet hole, and are used to blow air onto the machined surface of the parts. The air-water connectors flow through corresponding axial flow channels, mandrel outlet holes, annular flow channels, transverse guide channels, and rotor flow channels to the rotor outlet hole, and are used to cool the lenses and power mechanism.

8. The slip ring device according to claim 1, characterized in that, The electric slip ring rotor module includes a rotary insulating base, several electric rail slides, several partition plates, and a cover. The rotary insulating base has a hollow structure inside, with several wire grooves opened in the radial direction on the inner side. The electric rail slides and partition plates are alternately fitted on the rotary insulating base. The upper cover plate encapsulates the electric rail slides and partition plates inside the rotary insulating base. Several wires are fixed in the wire grooves and are respectively connected to the back side of the electric rail slides.

9. The slip ring device according to claim 8, characterized in that, The brush assembly includes a brush mounting strip, a brush pressure plate, brush pins, several left brushes, and several right brushes. The left and right brushes are symmetrically mounted on both sides of the brush mounting strip and are connected to the brush pins. The brush pins of the upper and lower layers are separated from each other by the concave groove of the brush pressure plate.

10. The slip ring device according to claim 9, characterized in that, The outer casing includes a circular cover, a mounting module, and a sealing plate. Several encoder aviation plugs, several motor temperature detection aviation plugs, and several power cord aviation plugs are arranged on the rear side of the mounting module. All plugs are arranged in a vertical line. The wiring of the plugs is connected to the brush pins in sequence. The brush group is connected to the support plate in the mounting module. The mounting module is connected to the circular cover. The left and right brushes of the brush group are simultaneously pressed onto the electric rail slide of the electric slip ring rotor module and separated by partition plates at each layer.

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