A spliced ​​three-dimensional circuit rotating transmission core shaft and its manufacturing method

Abstract

The present invention relates to a spliced ​​three-dimensional circuit rotating transmission core shaft, which belongs to the field of conductive slip ring technology. It solves the technical problems in the prior art that the circuit wiring of the transmission channel inside the slip ring core shaft is complicated, resulting in a complicated core shaft manufacturing process and easy transmission failure during the rotation of the electric slip ring core shaft. The spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention includes a conductive pin, a conductive pin pad, a first transmission module and a second transmission module; the first transmission module and the second transmission module can be spliced ​​and connected to form a spliced ​​three-dimensional circuit rotating transmission core shaft; the conductive pin pad is circumferentially arranged on the end face of one shaft end of the spliced ​​three-dimensional circuit rotating transmission core shaft; and each conductive pin pad is connected to a conductive pin. The spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention has a simple structure, is easy to install, and is cable-free, thereby improving the design integration and manufacturing automation level of the slip ring core shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive slip rings, and in particular to a spliced ​​three-dimensional circuit rotating transmission core shaft and a manufacturing method thereof. Background Art

[0002] Slip rings are primarily used as electrical components to connect rotating bodies and transmit energy and signals. They primarily consist of two main components: a rotating component and a stationary component. Electric slip rings are electrically conductive slip rings, specifically designed to transmit power and signal signals during unrestricted continuous rotation. Traditional electric slip rings, also known as "collector rings" or "collector rings," primarily transmit high currents. In recent years, precision electric slip rings have emerged, serving as a powerful tool for both military and civilian precision electronic and electrical equipment.

[0003] Regardless of the type of slip ring, most employ a stacked design and installation method, with the conductive ring and insulating sheet being designed and installed cumulatively. Specifically, the inner core of the slip ring is the shaft, while the outer core is the insulating sleeve. The insulating sleeve, conductive ring, and insulating sheet are assembled in a stacked fashion. During installation, the internal wires can easily become twisted, squeezed, or broken, causing short circuits or open circuits. The precision of the fit between the brush wire and the conductive ring is significantly affected by the machining accuracy of the conductive ring, insulating sheet, and other components, resulting in certain installation and fit errors.

[0004] How to change the circuit arrangement of the transmission channel inside the core shaft to effectively reduce the faults caused by cable arrangement and overcome the interference during the ring transmission process requires a complete transformation of the structure. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide a spliced ​​three-dimensional circuit rotating transmission core shaft and its manufacturing method, so as to solve the technical problems that the circuit wiring of the transmission channel inside the slip ring core shaft is complex, resulting in cumbersome core shaft production and assembly process, and transmission failures are prone to occur during the rotation process of the electric slip ring core shaft.

[0006] The present invention is achieved through the following technical solutions:

[0007] A spliced ​​three-dimensional circuit rotating transmission core shaft comprises a conductive pin, a conductive pin pad, a first transmission module and a second transmission module; the first transmission module and the second transmission module are integrally symmetrical parts that can be spliced ​​and connected to form the spliced ​​three-dimensional circuit rotating transmission core shaft; the conductive pin pad is circumferentially arranged on the end face of one axial end of the spliced ​​three-dimensional circuit rotating transmission core shaft; each of the conductive pin pads is connected to a conductive pin; the first transmission module and the second transmission module are provided with multiple independent circuit channels; the multiple circuit channels can transmit multiple energy flows.

[0008] Furthermore, the first transmission module includes a first base, which is a semi-cylinder with a first base first axis platform and a first base second axis platform respectively provided at both ends; a first center hole is provided at the axis center of the first base; a plurality of first V-shaped grooves are provided on the outer side surface of the first base and are evenly distributed in parallel along the axial direction, and the first V-shaped grooves are annular grooves with a V-shaped groove bottom.

[0009] Furthermore, a first center hole is provided at the axis center of the first base body; a plurality of circumferentially uniformly distributed first internal transmission axial channels are provided on the side wall of the first center hole along the busbar; the lengths of the plurality of first internal transmission axial channels correspond in sequence to the heights of the continuous first V-grooves starting from the end of the first axis platform of the first base body; each of the first V-grooves corresponds to two first V-groove fitting surfaces, and the two first V-groove fitting surfaces are radially symmetrically arranged; one of the first V-groove fitting surfaces is connected to the first internal transmission radial channel; the first internal transmission radial channel is connected to the first internal transmission axial channel at the corresponding position to form a first internal transmission channel.

[0010] Furthermore, the axial end surface of the first base-pillar platform is uniformly distributed with a plurality of radially arranged first welding pad grooves.

[0011] Furthermore, the second transmission module includes a second base, which is a semi-cylinder with a second base-one shaft platform and a second base-two shaft platform respectively provided at both ends; a second center hole is provided at the axis of the second base; a plurality of second V-grooves are provided on the outer side surface of the second base, which are evenly distributed in parallel along the axial direction, and the second V-grooves are annular grooves with a V-groove bottom; the second V-grooves correspond to the positions of the first V-grooves.

[0012] Furthermore, a second center hole is provided at the axis center of the second base body; a plurality of circumferentially uniformly distributed second internal transmission axial channels are provided on the side wall of the second center hole along the busbar; the lengths of the plurality of second internal transmission axial channels correspond in sequence to the heights of the continuous second V-grooves starting from the end of the first axle platform of the second base body; each of the second V-grooves corresponds to two second V-groove fitting surfaces, and the two second V-groove fitting surfaces are radially symmetrically arranged; one of the second V-groove fitting surfaces is connected to the second internal transmission radial channel; the second internal transmission radial channel is connected to the second internal transmission axial channel at the corresponding position to form a second internal transmission channel.

[0013] Furthermore, the axial end surface of the second base-pillar platform is uniformly distributed with a plurality of radially arranged second solder pad grooves.

[0014] Furthermore, the first base and the second base are spliced ​​and connected along a semi-cylindrical surface to form the spliced ​​three-dimensional circuit rotating transmission core shaft; wherein the two first V-groove bonding surfaces corresponding to each first V-groove and the two second V-groove bonding surfaces corresponding to each second V-groove are respectively bonded.

[0015] Furthermore, the first transmission module and the second transmission module are made of non-metallic insulating material; the surfaces of the first internal transmission channel and the second internal transmission channel are treated with local conductivity to form a circuit channel; the outer end surface between the two adjacent V-shaped grooves and the annular groove vertical surfaces of the two V-shaped grooves adjacent to the outer end surfaces form an insulating boss; the conductive pin is plugged into the socket of the pad, or welded with metal material.

[0016] A method for manufacturing a spliced ​​three-dimensional circuit rotating transmission core shaft, for manufacturing the spliced ​​three-dimensional circuit rotating transmission core shaft, comprises the following steps:

[0017] S1: Prepare the first transmission module and the second transmission module blanks;

[0018] S2: Processing the assembled blank to form the transmission center hole, welding pad slot and mandrel mounting pillow block;

[0019] S3: Processing the base cylinder of S2 to form a spliced ​​blank V-groove ring;

[0020] S4: Conductively treating the surface of the V-groove ring of S3 to form a first V-groove metal ring coating on the first substrate and a second V-groove metal ring coating on the second substrate;

[0021] S5: Plating a precious metal layer on the surface of the V-groove metal ring;

[0022] S6. Disassemble the spliced ​​blanks, and perform conductivity treatment on the first and second substrates respectively, corresponding to the height of the V-groove ring of the spliced ​​blanks in S3, on the internal transmission channels and the bonding surfaces, to form a cable-free energy transmission channel;

[0023] S7: Splice the first transmission module and the second transmission module, and install a conductive pin in each pad groove.

[0024] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0025] 1. Compared with the traditional structure, the spliced ​​three-dimensional circuit rotation transmission core shaft of the present invention reduces the types and number of parts of the slip ring core shaft.

[0026] 2. The production and assembly process of the spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention is simplified, and the manufacturing efficiency is improved.

[0027] 3. The spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention removes the cables inside the core shaft, and the internal wiring is neat and planned in accordance with the principle of the shortest route.

[0028] 4. The spliced ​​three-dimensional circuit rotary transmission core shaft wiring of the present invention adopts a three-dimensional, integrated wiring method, which has a higher space utilization rate for wiring.

[0029] 5. The spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention eliminates the cumulative error caused by the superposition of the conductive ring and the insulating sheet, thereby improving the installation accuracy between the brush wire and the conductive ring.

[0030] 6. The spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention is conducive to realizing the cable-free slip ring core shaft, improving the core shaft design integration and manufacturing automation level, and is conducive to the use of automated production equipment for production and assembly, effectively improving the standardization of design, manufacturing and assembly.

[0031] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0033] Figure 1 A half-section schematic diagram of the spliced ​​three-dimensional circuit rotation transmission core shaft structure of the present invention;

[0034] Figure 2 A top view of the rotating transmission core shaft of the spliced ​​three-dimensional circuit of the present invention;

[0035] Figure 3 is a structural diagram of the first transmission module of the present invention;

[0036] Figure 4 for Figure 3 A top view of

[0037] Figure 5 is a structural diagram of the second transmission module of the present invention;

[0038] Figure 6 for Figure 5 A top view of

[0039] Figure 7 This is a flowchart of the processing steps of the rotating transmission core shaft of the spliced ​​three-dimensional circuit of the present invention.

[0040] Reference numerals:

[0041] 1. Conductive pin; 2. First transmission module; 21. First external connection hole; 22. First internal transmission channel; 23. First V-groove; 24. First V-groove metal ring plating; 25. First insulating boss; 26. First V-groove fitting surface; 27. First base; 28. First center hole; 29. ​​First base and a pillow block; 3. Second transmission module; 31. Second external connection hole; 32. Second internal transmission channel; 33. Second V-groove; 34. Second V-groove metal ring plating; 35. Second insulating boss; 36. Second V-groove fitting surface; 37. Second base; 38. Second center hole; 39. Second base and a pillow block; 4. Conductive pin pad. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0043] Specific combination Figure 1-Figure 7 The specific embodiments of the technical solutions of the present invention are described in detail.

[0044] Example 1

[0045] The utility model relates to a spliced ​​three-dimensional circuit rotating transmission core shaft.

[0046] Combine Figure 1 、 Figure 3 、 Figure 5 As shown, the present invention provides a spliced ​​three-dimensional circuit rotary transmission mandrel comprising a conductive pin 1, a first transmission module 2, a second transmission module 3, and a conductive pin pad 4. The first transmission module 2 comprises a first internal transmission channel 22, a first V-groove 23, a first V-groove metal ring coating 24, a first insulating boss 25, a first V-groove fitting surface 26, a first base 27, a first center hole 28, and a first base-to-pillar platform 29. The second transmission module 3 comprises a second internal transmission channel 32, a second V-groove 33, a second V-groove metal ring coating 34, a second insulating boss 35, a second V-groove fitting surface 36, a second base 37, a second center hole 38, and a second base-to-pillar platform 39.

[0047] like Figure 3Specifically, the first transmission module 2 includes a first base 27, which is a semi-cylindrical structure with a first base first saddle 29 and a first base second saddle 2 provided at either end. The axial cross-section forms the interface with the second transmission module 3. A first center hole 28 is provided at the axis of the first base 27. Preferably, the first center hole 28 is coaxial with the first base 27 and forms a through-axis. A plurality of first V-shaped grooves 23 are machined on the outer semi-cylindrical surface of the first base 27, evenly distributed along the axial direction.

[0048] Specifically, the first V-shaped groove 23 is an annular groove with a V-shaped bottom. The V-shaped portion serves as part of the circuit path, and the vertical surface of the annular groove serves as part of the insulating boss. In this embodiment, there are preferably N first V-shaped grooves 23, which are evenly distributed on the outer semi-cylindrical surface of the first base 27. Where N is an even number.

[0049] like Figure 3 As shown, further, a plurality of first internal transmission axial channels are uniformly distributed circumferentially along the generatrix on the inner wall of the semi-cylindrical hole of the internal first center hole 28. Preferably, the plurality of first internal transmission axial channels are uniformly distributed circumferentially, and their axial heights correspond to the axial positions of the bottoms of the consecutive first V-shaped grooves 23 from top to bottom. Preferably, there are N / 2 first internal transmission axial channels, corresponding to the N / 2 first V-shaped grooves 23 adjacent to the first base body's first pillow block.

[0050] like Figure 3 As shown, further, a first V-groove fitting surface (26) is provided at the bottom of each first V-groove 23, and each first V-groove (23) corresponds to two first V-groove fitting surfaces (26). The first internal transmission radial channel is radially provided on one side of the axial section of the first base 27, is connected to one of the first V-groove fitting surfaces (26), and is connected to the first center hole 28. At the same time, it is directly opposite to one first internal transmission axial channel and is connected thereto to form a first internal transmission channel 22. The multiple first internal transmission channels 22 are independent of each other. As shown Figure 3 and Figure 4 As shown, the first base body, a pillow block 29, is circumferentially distributed with multiple radially arranged first pad slots. These slots correspond to the first internal transmission axial channel and extend through the first center hole 28. Specifically, the centerline of each slot passes through the axis of the corresponding semi-cylindrical portion of the first internal transmission channel 22. Each slot houses a conductive pin pad 4, each with a pad pin hole for connecting to a conductive pin 1.

[0051] like Figure 4 As shown, preferably, one end of the conductive pin pad 4 close to the center of the circle covers the corresponding first internal transmission axial channel 22 and is coplanar with the corresponding first central hole 28 .

[0052] Each conductive pin 1 , the corresponding conductive pin pad 4 , the first internal transmission channel 22 and the first V-groove fitting surface 26 together form a first base transmission channel.

[0053] like Figure 5 Specifically, the second transmission module 3 includes a second base 37, which is a semi-cylindrical body with a second base-one pedestal 39 and a second base-two pedestal 39 at either end. A second center hole 38 is provided at the axis of the second base 37. Preferably, the second center hole 38 is coaxial with the second base 37 and forms a through-axis. A plurality of second V-shaped grooves 33 are machined on the outer semi-cylindrical surface of the second base 37 and are evenly distributed along the axial direction.

[0054] After the first transmission module 2 and the second transmission module 3 are assembled, the first base one-axis platform 29 and the second base one-axis platform 39 are assembled into the first axis platform of the transmission mandrel, and the first axis platform of the transmission mandrel is the first bearing mounting axis platform; the first base two-axis platform and the second base two-axis platform are assembled into the second axis platform of the transmission mandrel, and the second axis platform of the transmission mandrel is the second bearing mounting axis platform.

[0055] The second V-groove 33 is an annular groove with a V-groove bottom. The V-shaped portion serves as part of the circuit path, and the vertical surface of the annular groove serves as part of the insulating boss. Preferably, this embodiment includes N second V-grooves 33, equal in number and corresponding in position to the first V-grooves 23. The second V-grooves 33 are evenly distributed on the outer semi-cylindrical surface of the second base 37.

[0056] like Figure 5 As shown, further, on the inner wall of the semi-cylindrical hole of the second center hole 38 inside the second base 37, a plurality of circumferentially uniformly distributed second internal transmission axial channels are arranged along the busbar. Preferably, the plurality of second internal transmission axial channels are circumferentially uniformly distributed on the inner wall surface of the second center hole 38, and the axial heights correspond in sequence to the axial positions of the bottoms of the continuous second V-grooves 33 from top to bottom.

[0057] Preferably, there are N / 2 second internal transmission axial channels, and the second internal transmission axial channels correspond to N / 2 second V-grooves 33 close to the second base body two-axis platform in axial height.

[0058] like Figure 5 As shown, further, a second V-groove fitting surface (36) is provided at the bottom of each second V-groove 33, and each second V-groove (33) corresponds to two second V-groove fitting surfaces (36). The second internal transmission radial channel is radially provided on one side of the axial section of the second base body 37, communicates with one of the second V-groove fitting surfaces (36), and penetrates the second center hole 38. At the same time, it faces one second internal transmission axial channel and penetrates therewith to form a second internal transmission channel 32. The multiple second internal transmission channels 32 are independent of each other.

[0059] At this point, after the first transmission module 2 and the second transmission module 3 are spliced ​​together, the first internal transmission channel 22 and the second internal transmission channel 32 are on both sides of the cylinder, and each first V-groove fitting surface 26 corresponds to a second V-groove fitting surface of corresponding height; the first internal transmission axial channel and the second internal transmission axial channel are connected in the axial direction to form N equally spaced, independent transmission channels, and correspond one-to-one to the axial positions of the annular groove with the V-groove bottom.

[0060] like Figure 5 and Figure 6 As shown, the axial end of the second base body, a pillow block 39, is uniformly distributed with multiple radially arranged second solder pad slots. These slots correspond to the second internal transmission axial channels and extend through the second center hole 38. Specifically, the centerline of each slot passes through the axis of the corresponding semi-cylindrical portion of the second internal transmission axial channel. Each slot houses a conductive pin pad 4, each with a pin hole for connecting to a conductive pin 1.

[0061] like Figure 6 As shown, preferably, the end of the conductive pin pad 4 near the center of the circle covers the corresponding second internal transmission axial channel and is coplanar with the corresponding second center hole 38. The conductive pin 1, the conductive pin pad 4, the second internal transmission channel 32 and the second V-groove bonding surface 36 constitute the second base transmission channel.

[0062] Specifically, the first substrate 27 and the second substrate 37 are both made of non-metallic materials with good insulation properties. The transmission channels of the first transmission module 2 and the second transmission module 3 can be treated to be conductive so that the transmission channels have conductive properties.

[0063] Conductive treatment includes laser cladding, spraying conductive ink and other methods, which can form a circuit layout with conductive properties on the surface of the substrate, that is, the transmission channel, and then increase the thickness of the metal layer of the transmission channel through electroplating or chemical plating, effectively reducing the transmission resistance value, improving the transmission efficiency, and making the transmission channel an efficient circuit channel.

[0064] Preferably, the conductive treatment includes plating a metal conductive layer on the circuit channel positions of the first substrate 27 and the second substrate 37 and the V-groove bottom of the V-groove ring, including the first V-groove mating surface 26 and the second V-groove mating surface 36, and further plating a precious metal layer on the surface of the V-groove ring metal layer to enhance the wear resistance of the surface of the V-groove ring metal layer.

[0065] This conductive surface treatment realizes cable-free transmission of the slip ring core shaft, eliminating the wired cable from the spliced ​​three-dimensional circuit rotating transmission core shaft. At the same time, it avoids the cumulative error caused by the superposition of the conductive ring and the insulating sheet, improves the contact stability between the brush wire and the conductive ring, and easily ensures installation accuracy.

[0066] Preferably, a first V-groove metal ring plating 24 is formed in the circuit channel of the first transmission module 2. The first V-groove metal ring plating 24 connects the first V-groove fitting surface 26, the first internal transmission channel 22, and the lower surface of the conductive pin pad 4 on the first internal transmission axial channel, but does not include the vertical surface of the groove ring of the first V-groove 23, so as to ensure the electrical connection between the conductive pin pad 4 and the first V-groove metal ring plating 24, and is isolated from the first V-groove metal ring plating 24 of other first V-grooves by the vertical surface of the groove ring of the first V-groove 23.

[0067] Preferably, a second V-groove metal ring plating 34 is formed in the circuit channel of the second transmission module 3. The second V-groove metal ring plating 34 connects the second V-groove fitting surface 36, the second internal transmission channel 32, and the lower surface of the conductive pin pad 4 on the second internal transmission axial channel, but does not include the vertical surface of the groove ring of the second V-groove 33, so as to ensure the electrical connection between the conductive pin pad 4 and the second V-groove metal ring plating 34, and is isolated from the second V-groove metal ring plating 34 of other second V-grooves by the vertical surface of the groove ring of the second V-groove 33.

[0068] The annular insulating boss not only has an insulating effect, but also can effectively prevent the brush wire matched with the plating of the V-groove ring from jumping onto the plating of the adjacent V-groove ring.

[0069] The first base 27 and the second base 37 can be assembled along the semi-cylindrical surface and connected by fasteners to form a complete cylindrical assembly. After assembly, the corresponding functional structures on the first transmission module 2 and the second transmission module 3 can be assembled into an integral functional structure. Specifically, after the two semi-axial surfaces of the first substrate 27 and the second substrate 37 are spliced ​​together, the two first V-groove fitting surfaces 26 with the first V-groove metal ring coating 24 are bonded with the two second V-groove fitting surfaces 36 with the second V-groove metal ring coating 34 to form a complete V-groove metal ring; the first center hole 28 and the second center hole 38 are docked to form a complete transmission center hole; the first internal transmission channel 22 and the second internal transmission channel 32 are arranged neatly and evenly distributed on the inner wall of the transmission center hole, and the axial lengths differ by the ring spacing between two adjacent V-groove rings; the first substrate one-axis platform 29 and the second substrate one-axis platform 39 are spliced ​​together to form the first axis platform of the transmission core shaft, and the first substrate two-axis platform and the second substrate two-axis platform are spliced ​​together to form the second axis platform of the transmission core shaft; the first substrate transmission channel and the second substrate transmission channel together constitute a series of axially evenly distributed and axially spirally wound transmission channels of the spliced ​​three-dimensional circuit rotating transmission core shaft. In addition, after the first base 27 and the second base 37 are assembled, the first pad groove and the second pad groove on the end surface of the first axis platform of the transmission core shaft are assembled into N groove structures evenly distributed around the entire circumference.

[0070] Since the first transmission module 2 and the second transmission module 3 are made of non-metallic insulating materials, the independent facade between two adjacent V-grooved rings and the adjacent facades of the two adjacent V-grooved rings form an insulating boss.

[0071] The insulating bosses on the first transmission module 2 are first insulating bosses 25, and the insulating bosses on the second transmission module 3 are second insulating bosses 35. After the first base 27 and the second base 37 are assembled, the first insulating bosses 25 and the second insulating bosses 35 are correspondingly joined to form a plurality of parallel and spaced annular insulating bosses for the spliced ​​three-dimensional circuit rotating transmission core shaft.

[0072] The materials of the first substrate 27 and the second substrate 37 should have good electrical properties and strong mechanical properties to meet the use requirements of the slip ring core shaft.

[0073] The annular insulating boss not only has an insulating effect, but also can effectively prevent the brush wire matched with the V-groove coating from jumping onto the adjacent V-groove coating.

[0074] Optionally, the conductive pin 1 is plugged into the socket of the conductive pin pad 4 or connected by welding a metal material. Specifically, the conductive pin 1 is made of a metal material with advantages such as easy welding and good conductivity, such as a silver-copper alloy. The conductive pin 1 can be connected to the socket of the conductive pin pad 4 and the socket of the conductive pin pad 4 on the second transmission module 3 by plugging or welding, quickly achieving stable communication with the conductive pin pad 4.

[0075] Specifically, the two axial end surfaces of the first transmission module 2 and the second transmission module 3 are respectively provided with a plurality of first external connection holes 21 and second external connection holes 31. After the first transmission module 2 and the second transmission module 3 are assembled, the first external connection holes 21 and the second external connection holes 31 form a plurality of external connection holes evenly distributed on the end surface of the first shaft platform of the transmission core shaft, which are used for connecting and fixing with external parts.

[0076] In the spliced ​​three-dimensional circuit rotating transmission core shaft composed of the first transmission module 2 and the second transmission module 3, the first shaft stage of the transmission core shaft and the second shaft stage of the transmission core shaft are respectively matched and fixed with the inner ring of the bearing, so that the metal layer of the spliced ​​V-groove can be rotated relative to the brush wire fixed relatively to the outer ring of the bearing in the slip ring product, and ensure that the brush wire is always in contact with the metal surface of the V-groove ring of the slip ring core shaft, thereby realizing real-time rotation transmission of power or signal source through the conductive pin 1, the conductive pin pad 4, the internal transmission channel, the V-groove metal ring plating, the brush wire to the corresponding interface.

[0077] This spliced ​​three-dimensional circuit rotating transmission core shaft wiring adopts a three-dimensional, integrated wiring method, which has a higher space utilization rate for wiring.

[0078] Example 2

[0079] A method for manufacturing a spliced ​​three-dimensional circuit rotating transmission core shaft.

[0080] The manufacturing method of the spliced ​​three-dimensional circuit rotating transmission core shaft of the second embodiment is used to manufacture the spliced ​​three-dimensional circuit rotating transmission core shaft of the first embodiment, and includes the following steps:

[0081] S1: preparing the blanks of the first transmission module (2) and the second transmission module (3) to form an integral blank of a spliced ​​three-dimensional circuit rotating transmission core shaft;

[0082] S11 , the first transmission module 2 blank and the second transmission module 3 blank are respectively processed and assembled with threaded holes.

[0083] Preferably, the blanks for the first transmission module 2 and the second transmission module 3 are made of rectangular insulating material to facilitate machining of a high-precision joint surface. Simultaneously, a portion of the internal transmission channel and the subsidence of the joint surface are machined at the joint surface to reserve the height of the metal plating of the internal transmission channel and the joint surface.

[0084] Based on the high-precision joint surface, the blanks of the first transmission module 2 and the second transmission module 3 are joined together and clamped on a machine tool, and threaded holes and cylindrical countersunk holes for installation are machined on the joint body.

[0085] S12. Using fasteners, fix the first transmission module 2 and the second transmission module 3 together through the threaded holes and cylindrical countersunk holes for installation to form an integral blank.

[0086] S2: The whole blank after processing and splicing is formed into the transmission center hole, welding pad groove and core shaft mounting pillow block:

[0087] S21, machining an integral center hole on the assembled integral blank to form a transmission center hole formed by combining the first center hole 28 and the second center hole 38;

[0088] S22, processing welding pad grooves arranged radially and evenly distributed around the circumference on the end surface of the first axial end of the integral blank;

[0089] S23, processing the outer shape of the integral blank to form the outer cylindrical surface of the integral blank, that is, forming the base cylinder after the first transmission module 2 and the second transmission module 3 are spliced ​​together, and processing the first and second core shaft blocks at both ends of the spliced ​​integral blank with one cut.

[0090] After S2 is completed, a base cylinder is formed based on the integral blank and assembled.

[0091] S3: Processing the base cylinder of S2 to form a spliced ​​blank V-groove ring;

[0092] The V-groove ring is a ring groove, and the bottom of the ring groove is processed into a V-groove bottom;

[0093] S4: Conductively treat the surface of the V-groove ring of S3 to form a first V-groove metal ring coating 24 on the first substrate 27 and a second V-groove metal ring coating 34 on the second substrate 37;

[0094] S41, plating a metal conductive layer on the surface of the V-groove ring to form a conductive path;

[0095] S42. A precious metal layer is plated on the surface of the metal layer formed in S41 to increase wear resistance, increase the frequency of friction between the brush and the metal layer, and improve the service life of the device.

[0096] S5. Plating a precious metal layer on the surface of the V-groove metal ring;

[0097] S6. Disassemble the spliced ​​blanks and perform conductivity treatment on the first base 27 and the second base 37 respectively, corresponding to the height of the V-groove ring of the spliced ​​blank in S3, on the internal transmission channel and the bonding surface to form a cable-free energy transmission channel:

[0098] S61, install the conductive pin pad 4 on the pad groove of the first substrate 27 and the second substrate 37

[0099] S62. The inner surfaces of the first center hole 28 and the second center hole 38 formed in S21 correspond to the positions of the conductive pin pads 4, and a metal conductive layer is plated along the busbar intervals to form a conductive axial transmission channel; the thickness of the plated metal conductive layer is consistent with the thickness of the metal conductive layer plated on the surface of the V-groove ring in S41; the heights of the multiple consecutive axial transmission channels correspond to the heights of the V-groove bottoms of the consecutive V-groove rings; the axial transmission channels are connected to the corresponding conductive pin pads 4;

[0100] S63. A radial transmission channel perpendicular to the axial direction and corresponding to N / 2 V-grooved rings is formed on the depressed portion of the bonding surface on one side of the first substrate 27 formed in S11. The radial transmission channel is connected to the corresponding axial transmission channel and corresponds to N / 2 V-grooved rings. That is, a metal conductive layer is plated at this position. The thickness of the plated metal conductive layer is consistent with the thickness of the metal conductive layer plated on the surface of the V-grooved ring in S41.

[0101] The depressions on both sides of the first substrate 27 formed in S64 and S11 form the edge bonding surfaces of the first substrate 27, i.e., the first V-groove bonding surfaces 26; the height of the first V-groove bonding surfaces 26 corresponds to the position of the radial transmission channel in S63;

[0102] After S63 and S64, the first internal transmission channel 22 and the first V-groove fitting surface 26 are formed on the first base 27;

[0103] S65. A radial transmission channel perpendicular to the axial direction, corresponding one-to-one to the N / 2 V-grooved rings, and connected to the corresponding axial transmission channel is formed from the depression on the mating surface of the second base 37 formed in S11. The depression on the mating surface of the second base 37 is not opposite to the depression on the mating surface of the first base 27 in S63, and the length of the axial channel corresponds to the remaining portion of the V-grooved ring involved in S63.

[0104] S66. The subsidence portions of the bonding surfaces on both sides of the second base 37 formed in S11 are used to form edge bonding surfaces of the second base 37, i.e., second V-groove bonding surfaces 36. The height of the second V-groove bonding surfaces 36 corresponds to the position of the radial transmission channel in S65.

[0105] After S65 and S66, the second internal transmission channel 32 and the second V-groove fitting surface 36 are formed on the second base 37;

[0106] At this point, after the first base 27 and the second base 37 are spliced ​​together, the first V-groove fitting surface 26, the second V-groove fitting surface 36, the first V-groove metal ring coating 24 and the second V-groove metal ring coating 34 are completely spliced ​​together to form a complete multi-channel cable-free conductive transmission channel; specifically, the first base 27 is the first base transmission channel, and the second base 37 is the second base transmission channel. The axial heights of the first base transmission channel and the second base transmission channel do not overlap, and they are spliced ​​together to form a transmission channel that is evenly distributed in the circumference and spirally wound in the axial direction.

[0107] S7: Splice the first transmission module 2 and the second transmission module 3, and install the conductive pin 1 in each pad groove.

[0108] The complete spliced ​​three-dimensional circuit rotating transmission core shaft is manufactured.

[0109] Example 3

[0110] A spliced ​​multi-stage energy transmission device.

[0111] The spliced ​​multi-stage energy transmission device of Example 3 is a modified design product of the spliced ​​three-dimensional circuit rotating transmission core shaft of Example 1.

[0112] The specific deformation design involves the following contents:

[0113] The outer cylindrical surfaces of the first substrate 27 and the second substrate 37 are processed with V-grooved rings of equal width and metal-plated conductive layers with orderly varying thicknesses, or V-grooved rings with orderly varying widths and metal-plated conductive layers with equal thicknesses; the inner cylindrical surfaces and the bonding surfaces of the first substrate 27 and the second substrate 37 are matched with the first internal transmission channel 22, the first V-groove bonding surface 26, the second internal transmission channel 32 and the second V-groove bonding surface 36, and the metal-plated conductive layers with equal widths and orderly varying thicknesses, or the metal-plated conductive layers with orderly varying widths and the same thicknesses, thereby forming a plurality of spliced ​​multi-level energy transmission devices that can transmit orderly varying different levels of energy.

[0114] Example 4

[0115] A processing method for a spliced ​​multi-stage energy transmission device.

[0116] The processing method of the spliced ​​multi-stage energy transmission device of Example 4 is an improved method of the processing method of the spliced ​​three-dimensional circuit rotating transmission core shaft of Example 2, and is used to process the spliced ​​multi-stage energy transmission device of Example 3.

[0117] Corresponding to Example 2, the specific improvements of the method of Example 4 involve the following contents:

[0118] S3′, forming a V-grooved ring with the same width as the base cylinder of S2;

[0119] S4′, performing an operation of plating a metal conductive layer with orderly varying thickness on the spliced ​​blank V-grooved rings of the same width in Example S3-1;

[0120] S6′, disassemble the spliced ​​blanks, and perform transmission channel conductivity treatment on the inner cylindrical surface and the bonding surface of the first substrate 27 and the second substrate 37 corresponding to the V-groove ring groove width of the spliced ​​blank S3′ and the V-groove ring plating width of the spliced ​​blank S4′.

[0121] or,

[0122] S3", a V-shaped groove ring with orderly varying width is formed on the base cylinder of S2;

[0123] S4", plating a metal conductive layer of the same thickness on the spliced ​​blank V-groove ring with orderly varying widths of embodiment S3';

[0124] S6'', disassemble the spliced ​​blanks, and perform conductivity treatment on the transmission channels of the first base 27 and the second base 37, respectively, corresponding to the orderly changing groove width of the V-grooved ring of the spliced ​​blank in S3' and the same coating thickness of the V-grooved ring of the spliced ​​blank in S4'.

[0125] Through the above two changes to the processing steps of Example 2, a spliced ​​multi-level energy transmission device that can transmit orderly changing different levels of energy can be obtained.

[0126] In Examples 3 and 4, by matching and varying the width of the V-groove ring, the width of the transmission channel, the width of the bonding surface, and the thickness of the metal layer, different current specifications, i.e., different signals and powers, are transmitted. When the width of the V-groove ring increases, the width of the corresponding transmission channel increases, the width (or area) of the bonding surface increases accordingly, or when the thickness of the metal layer increases, the cross-sectional area of ​​the V-groove metal ring, the transmission channel, and the bonding surface in the direction of current transmission also increases accordingly, thereby improving the current carrying capacity.

[0127] The spliced ​​three-dimensional circuit rotating transmission core shaft of the present invention can form a spliced ​​three-dimensional circuit and solve the problem of complex circuit wiring in the transmission channel inside the slip ring core shaft, which makes the core shaft manufacturing process complicated, and the problem that transmission failures are prone to occur during the rotation process of the electric slip ring core shaft through cable-free transmission. This is different from other technical fields that use cable-free technology to save PCBs, connectors and other accessories to achieve the purpose of weight reduction.

[0128] The present invention adopts a three-dimensional circuit through splicing to make the internal wiring more regular, and the adjacent channels are parallel and orderly, which effectively reduces the mutual crosstalk between cables and improves the anti-interference ability of the transmission channel during transmission. At the same time, it eliminates the welding process of traditional cables, simplifies the production and assembly process, and is conducive to realizing automated production and assembly of automated production equipment, thereby improving production and assembly efficiency.

[0129] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be covered by the scope of protection of the present invention. At the same time, any equipment equipped with this device to expand the application field and produce complex technical effects is also within the scope of protection of the present invention.

Claims

1. A spliced ​​three-dimensional circuit rotating transmission core shaft, characterized in that: It comprises a conductive pin (1), a conductive pin pad (4), a first transmission module (2) and a second transmission module (3); the first transmission module (2) and the second transmission module (3) are integrally structurally symmetrical parts, and can be spliced ​​and connected to form the spliced ​​three-dimensional circuit rotating transmission core shaft; The conductive pin pad (4) is circumferentially arranged on the end face of one axial end of the spliced ​​three-dimensional circuit rotating transmission core shaft; each conductive pin pad (4) is connected to a conductive pin (1); the first transmission module (2) and the second transmission module (3) are provided with multiple independent circuit channels; The plurality of circuit channels are capable of transmitting a variety of energy flows; The first transmission module (2) comprises a first base (27), the first base (27) being a semi-cylinder, with a first base first axis platform (29) and a first base second axis platform respectively provided at both ends; A first central hole (28) is provided at the axis of the first base body (27); a plurality of first internal transmission axial channels uniformly distributed in the circumferential direction are provided on the side wall of the first central hole (28) along the busbar; The second transmission module (3) comprises a second base (37), the second base (37) being a semi-cylinder, with a second base first axis platform (39) and a second base second axis platform respectively provided at both ends; A second central hole (38) is provided at the axis of the second base body (37); a plurality of second internal transmission axial channels uniformly distributed in the circumferential direction are provided on the side wall of the second central hole (38) along the busbar; The first base (27) and the second base (37) are spliced ​​and connected along a semi-cylindrical surface to form the spliced ​​three-dimensional circuit rotation transmission core shaft.

2. The spliced ​​three-dimensional circuit rotating transmission core shaft according to claim 1, characterized in that: The axial end surface of the first base-axis platform (29) is uniformly distributed with a plurality of radially arranged first welding pad grooves.

3. The spliced ​​three-dimensional circuit rotating transmission core shaft according to claim 1, characterized in that: The axial end surface of the second base-axis platform (39) is uniformly distributed with a plurality of radially arranged second welding pad grooves.

4. The spliced ​​three-dimensional circuit rotating transmission core shaft according to any one of claims 2-3, characterized in that: The first transmission module (2) and the second transmission module (3) are made of non-metallic insulating material.

5. A method for manufacturing a spliced ​​three-dimensional circuit rotating transmission mandrel, for manufacturing the spliced ​​three-dimensional circuit rotating transmission mandrel according to any one of claims 1 to 4, comprising the following steps: S1: preparing blanks of the first transmission module (2) and the second transmission module (3); S2: Processing the assembled blank to form the transmission center hole, welding pad slot and mandrel mounting pillow block; S3: Processing the base cylinder of S2 to form a spliced ​​blank V-groove ring; S4: Conductive treatment is performed on the surface of the V-groove ring of S3; S5: Plating a precious metal layer on the surface of the V-groove metal ring; S6: disassembling the spliced ​​blanks, and performing conductivity treatment on the internal transmission channels and the bonding surfaces of the first substrate (27) and the second substrate (37) to form a cable-free energy transmission channel; S7: Splicing the first transmission module (2) and the second transmission module (3), and installing a conductive pin (1) in each pad slot.

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