Conductive slip ring brush assembling and adjusting tool

Abstract

The invention discloses a conductive slip ring brush assembling and adjusting tool, and relates to the technical field of conductive slip rings. Comprising a base, a dovetail protrusion part is arranged on the base, and a plurality of electric brush assemblies are arranged on the dovetail protrusion part in a matched mode; the electric brush assembly comprises a supporting frame arranged on the base in a matched mode, two electric brush positioning plates are fixedly arranged on the supporting frame, and the two electric brush positioning plates are electrically connected through a wire. Welding operation can be conveniently achieved, and the electric brush wires are prevented from being mutually pulled and damaged; the components can be effectively prevented from colliding with each other and toppling over, the fixing is reliable, and the operation convenience can be effectively improved; the technical problems that when an existing electric brush assembly is installed and adjusted, the process difficulty is large, operation is inconvenient, and the assembly is prone to being damaged are solved.

Description

Technical Field

[0001] This invention relates to the field of conductive slip ring technology, and in particular to a tooling for assembling and adjusting conductive slip ring brushes. Background Technology

[0002] Conductive slip rings, also known as slip rings, rotary joints, current collectors, etc., belong to the category of electrical contact sliding connections. Their function is to realize the transmission of power or signals from the fixed part to the rotating part. They are especially suitable for continuous rotation with no angle limit and for situations where power or data needs to be sent from the fixed position to the rotating position.

[0003] With the development of technology, conductive slip rings have been widely used in many fields, such as aerospace, medical equipment, industrial automation, and radar systems. In these applications, the brush assembly serves as the stator end, equipped with wires and brush filaments. Some conductive slip ring structures require connecting two brush positioning plates via wires and welding them securely, which is a challenging process. Traditionally, two precision flat-nose pliers are used to fix the two brush positioning plates before welding. However, controlling the distance between the brush positioning plates is difficult, and pulling can easily occur during wire welding, making the operation difficult. Furthermore, after welding, transporting the brush assembly in a tray can easily cause the brush filaments to pull and become damaged. Therefore, this invention provides a conductive slip ring brush assembly and adjustment fixture that facilitates welding operations and prevents the brush filaments from pulling and becoming damaged. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention enables convenient welding operations and prevents the brush filaments from pulling and being damaged; it effectively prevents components from bumping or tipping over, ensuring reliable fixation and significantly improving operational convenience.

[0005] The technical solution used in this invention is as follows: a conductive slip ring brush assembly fixture, including a base, on which a dovetail protrusion is provided to provide stability for the subsequent fit between the support frame and the base. The design of the dovetail protrusion ensures the firmness and precision of the connection and prevents the fixture from loosening during use. Several brush assemblies are fitted on the dovetail protrusion. Each brush assembly includes a support frame fitted on the base, on which two brush positioning plates are fixedly mounted. The two brush positioning plates are electrically connected by wires.

[0006] As a preferred embodiment, the brush positioning plate is fixedly mounted on the support frame by screws. The brush positioning plate is provided with a concave frame, and the brush positioning plate is placed on top of the concave frame. The top of the concave frame is provided with a positioning hole with a diameter tolerance of H7. The screw positioning hole is threaded to fix the brush.

[0007] As a preferred embodiment, the brush positioning plate is provided with brush holes, and brush filaments are installed at the brush holes. The diameter tolerance of the brush holes is ±0.02mm. This ensures that the brush filaments can be accurately assembled to avoid interference problems, and also ensures that the welding joint between the brush filaments and the wire is stable and reliable. The wire core is welded to the brush filaments. A preset allowance is milled off the side of the concave frame on the support frame to prevent interference with the brush filaments.

[0008] As a preferred embodiment, the base is made of aluminum alloy, which is lightweight and has good mechanical properties and corrosion resistance, making it suitable for most general tooling requirements. The base is anodized to improve corrosion resistance and surface hardness.

[0009] As a preferred embodiment, the bottom of the support frame is provided with a dovetail groove, which mates with the dovetail protrusion on the base; the mating surfaces between the base and the support frame are mated using a reference surface, and the parallelism tolerance between the connecting surfaces of the base and the support frame is 0.05mm; the dovetail groove installation ensures a tight and convenient connection, and prevents the tooling from tipping over or being damaged during transport.

[0010] As a preferred embodiment, the support frame is made of aluminum alloy and its surface is anodized.

[0011] As a preferred embodiment, the brush positioning plate is made of copper alloy, which improves its performance. Copper has excellent electrical conductivity, ensuring good electrical contact between the brush and the brush positioning plate. The surface is anodized to increase its corrosion resistance and improve contact performance.

[0012] As a preferred embodiment, the conductor core is made of oxygen-free copper, the outer insulation layer of the conductor core is made of PVC, the conductor cores at both ends are welded to the brush filaments, and the middle part is in a naturally curved state.

[0013] As a preferred embodiment, the base has a partition strip in the middle area, dovetail protrusions on both sides of the partition strip, and a support frame is installed on both sides of the partition strip and positioned by the partition strip.

[0014] According to the process requirements, push the brush positioning plate 101 equipped with brush bristles into the side of the support frame 104, taking care to avoid the brush bristles accidentally touching the support frame 104, until the four screw mounting holes of the brush positioning plate 101 coincide with the positioning holes on the support frame 104, and then install the screws 103 and tighten them to fix it.

[0015] Solder the two cores of the stripped wire 102 to the brush bristles on the brush positioning plate 101, ensuring the solder joints are within the soldering area, with the middle part of the wire 102 naturally bent. Clean the solder joints with a soft brush dipped in anhydrous ethanol and allow them to air dry. After welding multiple brush assemblies, install them on the base 2, where the dovetail groove at the bottom of the support frame 104 mates with the dovetail protrusion on the base 2. Then, transfer them to the sealing process to seal the solder joints. After the adhesive has cured, transfer them to the debugging process, remove the support frame 104 from above the base plate 2, remove the four screws 103, and perform subsequent brush bristle debugging.

[0016] The advantages of this invention compared with the prior art are: (1) The brush positioning plate is fixed to the support frame by screws and connected to the base by dovetail groove below, which makes the transfer operation convenient and can effectively protect each component during transfer; (2) The two brush positioning plates on the support frame are reasonably designed, and the wire welding is convenient after installation, without the need to repeatedly adjust the position; (3) A certain amount of allowance is milled off on both sides of the support frame to avoid interference with the brush wire and thus avoid damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the brush assembly installation structure of the present invention.

[0019] Reference numerals: 1-Brush assembly; 2-Base; 101-Brush positioning plate; 102-Wire; 103-Screw; 104-Support frame. Specific Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 2 As shown, a conductive slip ring brush assembly fixture includes a base 2 with a dovetail protrusion on the base 2. A plurality of brush assemblies 1 are fitted on the dovetail protrusion. Each brush assembly 1 includes a support frame 104 fitted on the base 2. Two brush positioning plates 101 are fixedly mounted on the support frame 104 and electrically connected to each other by a wire 102. A partition strip is provided in the middle area of ​​the base 2, and the dovetail protrusion is distributed on both sides of the partition strip. The support frame 104 is fitted on both sides of the partition strip and positioned by the partition strip.

[0022] The brush positioning plate 101 is fixedly mounted on the support frame 104 by screws 103. A concave frame is provided on the brush positioning plate 101, and the brush positioning plate 101 is placed on top of the concave frame. The top of the concave frame is provided with a positioning hole with a diameter tolerance of H7. The screws 103 are threaded into the positioning hole for fixing. The brush positioning plate 101 is provided with a brush hole, and a brush filament is installed at the brush hole. The diameter tolerance of the brush hole is ±0.02mm. The wire core of the conductor 102 is welded to the brush filament. A preset allowance is milled off the side of the concave frame on the support frame 104 to prevent interference with the brush filament.

[0023] The base 2 is made of aluminum alloy, which is lightweight and has good mechanical properties and corrosion resistance, making it suitable for most general tooling requirements. Its surface is anodized to improve corrosion resistance and surface hardness. A dovetail groove is provided at the bottom of the support frame 104, which mates with the dovetail protrusion on the base 2. The mating surfaces between the base 2 and the support frame 104 are aligned using a reference surface, and the parallelism tolerance between the connecting surfaces of the base 2 and the support frame 104 is 0.05mm. The dovetail groove installation ensures a tight and convenient connection, preventing tooling from tipping over or being damaged during transport.

[0024] The support frame 104 is made of aluminum alloy, and the brush positioning plate 101 is made of copper alloy and its surface is electroplated. Copper alloy as the material of the positioning plate can improve its performance. Copper has excellent conductivity, which can ensure good electrical contact between the brush and the brush positioning plate. Its surface is anodized to increase the surface corrosion resistance and improve contact performance.

[0025] The conductor 102 has oxygen-free copper core and PVC insulation on the outside. The two ends of the conductor 102 are welded to the brush filaments, and the middle is in a natural bent state.

[0026] According to the process requirements, push the brush positioning plate 101 equipped with brush bristles into the side of the support frame 104, taking care to avoid the brush bristles accidentally touching the support frame 104, until the four screw mounting holes of the brush positioning plate 101 coincide with the positioning holes on the support frame 104, and then install the screws 103 and tighten them to fix it.

[0027] Solder the two cores of the stripped wire 102 to the brush bristles on the brush positioning plate 101, ensuring the solder joints are within the soldering area, with the middle part of the wire 102 naturally bent. Clean the solder joints with a soft brush dipped in anhydrous ethanol and allow them to air dry. After welding multiple brush assemblies, install them on the base 2, where the dovetail groove at the bottom of the support frame 104 mates with the dovetail protrusion on the base 2. Then, transfer them to the sealing process to seal the solder joints. After the adhesive has cured, transfer them to the debugging process, remove the support frame 104 from above the base plate 2, remove the four screws 103, and perform subsequent brush bristle debugging.

[0028] In this embodiment, by optimizing the materials and processes of each part of the structure, the following superior performance characteristics are achieved: The design of the base 2 adopts a dovetail protrusion, which provides stability for the subsequent fit between the support frame and the base. The design of the dovetail protrusion ensures the firmness and precision of the connection, preventing the tooling from loosening during use. The material of the base 2 is aluminum alloy, which is lightweight, has good mechanical properties and strong corrosion resistance, and is suitable for the needs of most general tooling. In addition, the surface of the base 2 is anodized, which further improves the corrosion resistance and surface hardness, ensuring reliability and durability in long-term use.

[0029] The brush assembly 1 includes a support frame 104 and a brush positioning plate 101 fixed on the support frame 104, which are electrically connected by a wire 102. This arrangement allows the brush to be stably and accurately mounted on the positioning plate and ensures the reliability of electrical contact.

[0030] The brush positioning plate 101 is fixed to the support frame by screws 103, and a concave frame structure is adopted to further increase its stability. The diameter tolerance of the positioning hole is H7, and the thread fit of the screw positioning hole ensures positioning accuracy and fixing strength.

[0031] The design tolerance of the brush hole is ±0.02mm to ensure that the brush filaments can be precisely assembled, avoid interference problems, and ensure that the welding joint between the brush filaments and the wire is stable and reliable.

[0032] The bottom of the support frame 104 has a dovetail groove that mates with the dovetail protrusion on the base 2, ensuring a stable connection between the support frame 104 and the base 2. The mating surfaces between the support frame 104 and the base 2 are made of reference surfaces, and the parallelism tolerance of the connecting surfaces is 0.05mm, ensuring high precision during assembly. The support frame 104 is also made of aluminum alloy and has undergone anodizing treatment to ensure that it has good mechanical properties, corrosion resistance and durability.

[0033] Brush filaments are installed at the brush holes, and the core of the conductor 102 is made of oxygen-free copper, while the outer layer of the core is made of PVC, which provides excellent conductivity and insulation for electrical contact. The two ends of the conductor 102 are welded to the brush filaments to ensure stable transmission of signals and current. To avoid interference, the concave frame side of the support frame 104 is milled, which effectively prevents conflict between the brush filaments and the support frame 104.

[0034] The base 2 has a partition strip in the middle area, and the dovetail protrusions are distributed on both sides of the partition strip. This configuration provides precise positioning for the installation of the support frame 104 and ensures a stable fit between the support frame 104 and the base 2.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A conductive slip ring brush assembly fixture, comprising a base (2), characterized in that: The base (2) is provided with a dovetail protrusion, and a number of brush assemblies (1) are provided on the dovetail protrusion; the brush assembly (1) includes a support frame (104) provided on the base (2), and two brush positioning plates (101) are fixedly provided on the support frame (104), and the two brush positioning plates (101) are electrically connected to each other by a wire (102).

2. The conductive slip ring brush assembly and adjustment fixture according to claim 1, characterized in that: The brush positioning plate (101) is fixedly mounted on the support frame (104) by screws (103). A concave frame is provided on the brush positioning plate (101). The brush positioning plate (101) is mounted on the top of the concave frame. The top of the concave frame is provided with a positioning hole with a hole diameter tolerance of H7. The screws (103) are threaded into the positioning hole for fixing.

3. The conductive slip ring brush assembly and adjustment fixture according to claim 2, characterized in that: The brush positioning plate (101) is provided with brush holes, and brush filaments are installed at the brush holes. The diameter tolerance of the brush holes is ±0.02mm. The wire core of the conductor (102) is welded to the brush filaments. The side of the concave frame on the support frame (104) is milled to remove a preset allowance to prevent interference with the brush filaments.

4. The conductive slip ring brush assembly and adjustment fixture according to claim 1, characterized in that: The base (2) is made of aluminum alloy and its surface is anodized.

5. The conductive slip ring brush assembly and adjustment fixture according to claim 1, characterized in that: The bottom of the support frame (104) is provided with a dovetail groove, which is matched with the dovetail protrusion on the base (2); the mating surfaces between the base (2) and the support frame (104) are matched with a reference surface, and the parallelism tolerance of the connecting surfaces between the base (2) and the support frame (104) is 0.05mm.

6. The conductive slip ring brush assembly and adjustment fixture according to claim 1, characterized in that: The support frame (104) is made of aluminum alloy and its surface is anodized.

7. The conductive slip ring brush assembly and adjustment fixture according to claim 1, characterized in that: The brush positioning plate (101) is made of copper alloy and its surface is electroplated.

8. The conductive slip ring brush assembly and adjustment fixture according to claim 3, characterized in that: The conductor (102) has an oxygen-free copper core and a PVC insulation layer on the outside. The conductor (102) has its two ends welded to the brush filaments and is in a naturally curved state in the middle.

9. The conductive slip ring brush assembly and adjustment fixture according to claim 1, characterized in that: The base (2) has a partition strip in the middle area, and the dovetail protrusions are distributed on both sides of the partition strip. The support frame (104) is installed on both sides of the partition strip and is positioned by the partition strip.

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