Superfine robot cable

Abstract

The utility model relates to the technical field of robot cables, in particular to a superfine robot cable. Comprising a central conductor, an insulating medium, a shielding layer, a grounding metal wire, a six-core electronic wire and an outer sheath, the insulating medium is sleeved outside the central conductor, the shielding layer is tightly attached to the insulating medium, a plurality of the 6-core electronic wires and the grounding metal wires are arranged outside the shielding layer, the outer sheath is coated outside the shielding layer, the 6-core electronic wires and the grounding metal wires, and the outer sheath is coated outside the shielding layer, the 6-core electronic wires and the grounding metal wires. The whole ultra-thin robot cable has an ultra-thin overall cable diameter design, and the technical effect that the cable diameter is smaller is achieved while the strength and stability of the cable are improved.

Description

Technical Field

[0001] The present application relates to the technical field of robot cables, and in particular to an ultra-thin robot cable. Background Art

[0002] In robotics, cables, as a crucial component of robotic motion systems, must possess high precision, flexibility, and controllability to perform a variety of complex tasks. These typically include robotic arms equipped with cameras and attached instruments, all of which require cables to transmit high-definition images and control signals. With the advancement of robotics, cable designs are increasingly refined, demanding higher performance. This is particularly true in applications requiring extremely precise precision, such as medical surgical robots, where cable requirements are becoming increasingly stringent.

[0003] To meet the above requirements, existing robot cables typically adopt a multi-layer structure design, which includes multiple components such as a center conductor, an insulating medium, a shielding layer, a grounding metal wire, and an outer sheath, in order to improve their anti-interference ability, durability, and stability. Common design solutions include single-layer or multi-layer insulation structures, metal braided shielding, etc. For example, some cables use a single-layer insulation structure combined with a metal braided shielding layer, while others use a double-layer insulation structure plus a metal sheath. Although these designs have improved the performance of the cables to a certain extent, there are still deficiencies in the overall wire diameter control.

[0004] Although the above-mentioned means in the prior art have improved the performance indicators of robot cables, it is difficult to achieve an extremely fine wire diameter design while maintaining high performance, which limits the use of cables in certain application scenarios that require extreme precision and are space-constrained. Utility Model Content

[0005] The purpose of this application is to overcome the above technical problems.

[0006] The above technical purpose of the present application is achieved through the following technical solutions: an extremely fine robot cable, comprising a central conductor, an insulating medium, a shielding layer, a grounding metal wire, a 6-core electronic wire and an outer sheath; the insulating medium is sleeved on the outside of the central conductor, the shielding layer is arranged closely to the insulating medium, a plurality of the 6-core electronic wires and the grounding metal wire are arranged outside the shielding layer, and the outer sheath is covered on the outside of the shielding layer, the 6-core electronic wire and the grounding metal wire.

[0007] By adopting the above technical solution, the combination of a central conductor and a six-core electronic cable meets the robot's requirements for stable transmission of multiple signals (such as control signals, sensor signals, and power signals). Independent transmission channels for different signals reduce signal interference, ensuring that the robot's various systems can accurately receive and execute commands. The insulating medium ensures excellent insulation between the central conductor and the external environment, preventing short circuits and leakage. The shielding layer effectively blocks external electromagnetic interference and prevents the impact of external electromagnetic fields on the cable's internal signals, further improving the stability and accuracy of signal transmission. The grounding wire connected to the shielding layer provides excellent grounding protection for the cable, promptly directing any static electricity and leakage current to the ground, reducing the risk of safety accidents caused by electrical failures in the robot. The outer sheath effectively protects the internal structure and has a certain degree of wear resistance, impact resistance, and tensile strength, extending the cable's service life. The tightly coordinated structure of the central conductor, insulating medium, shielding layer, six-core electronic cable, grounding wire, and outer sheath enables the cable to achieve multiple functions while maintaining a compact structure and improving space utilization. Achieve extremely fine wire diameter design, improving the use of cables in certain application scenarios that require extreme precision and are space-constrained.

[0008] Optionally, the central conductor is made of an alloy material having a tensile strength between 550 MPa and 650 MPa, a yield strength between 500 MPa and 600 MPa, and a hardness between 150 HBW and 200 HBW.

[0009] By adopting the above technical solution, the central conductor has high tensile strength, high yield strength and moderate hardness, which can ensure that the cable maintains good mechanical properties during repeated bending and stretching, extend the service life of the cable, and meet the transmission performance requirements.

[0010] Optionally, the diameter of the central conductor is 0.05 mm to 0.1 mm.

[0011] By adopting the above technical solution, the diameter of the central conductor is set to 0.05 mm to 0.1 mm, which can ensure that the cable has an extremely fine wire diameter, meet the high requirements of robot wires for precision and flexibility, and improve the controllability of the cable in the robot motion system and its ability to perform complex tasks.

[0012] Optionally, the insulating medium is made of a material that can work stably in an environment with a temperature not lower than 250° C. and has a tensile strength not lower than 100 MPa.

[0013] By adopting the above technical solution, the insulating medium is made of a material that can work stably in an environment with a temperature of not less than 250°C and has a tensile strength of not less than 100 MPa, so that the extremely fine robot cable can still maintain good insulation performance and mechanical strength in a high temperature environment, thereby improving the reliability and service life of the cable.

[0014] Optionally, the shielding layer is made of metal mesh or metal foil material.

[0015] By adopting this technical solution, the shielding layer, made of metal mesh or metal foil, effectively shields against external electromagnetic interference and improves the cable's signal transmission quality. Furthermore, the metal mesh or metal foil possesses good flexibility, which, combined with other structures, makes the cable resistant to bending and adapting to complex motion requirements in robotic applications.

[0016] Optionally, the 6-core electronic wire includes a metal conductor and an insulating layer wrapped around the outside of the metal conductor.

[0017] By adopting the above technical solution, the 6-core electronic wire includes a metal conductor and an insulating layer wrapped around the outside of the metal conductor, so that the 6-core electronic wire has high sensitivity and high-definition image transmission capabilities, further improving the operating accuracy and reliability of the robot.

[0018] Optionally, the thickness of the outer sheath is 0.02 mm to 0.05 mm.

[0019] By adopting the above technical solution, the thickness of the outer sheath is set to 0.02 mm to 0.05 mm, making the cable as a whole thinner and able to be flexibly arranged in a limited space, while ensuring that the cable has good insulation and temperature resistance.

[0020] Optionally, the overall wire diameter of the ultra-thin robot cable is 0.35 mm to 0.4 mm.

[0021] By adopting the above technical solution, the overall wire diameter of the ultra-fine robot cable can be controlled within the range of 0.35 mm to 0.4 mm, which can meet the fine requirements for wire diameter in the use of robot wires, ensure that the wires have extremely high flexibility and controllability, and are suitable for performing a variety of complex tasks.

[0022] In summary, this application has at least the following beneficial effects:

[0023] 1. The ultra-thin robotic cable provided in this application has a high-strength, high-toughness central conductor, which can ensure the transmission performance of the cable under multiple bends while meeting the requirements of high precision and high flexibility;

[0024] 2. The insulation medium is made of high-temperature resistant and tensile-strength materials, which can work stably in high-temperature environments, further improving the reliability and durability of the cable;

[0025] 3. The shielding layer and the insulating medium are tightly fitted to form a coaxial structure, which significantly improves the cable's anti-interference ability and ensures high-quality transmission of high-definition images and control signals;

[0026] 4. The thickness of the outer sheath is strictly controlled between 0.02 mm and 0.05 mm, so that the overall wire diameter is maintained at 0.35 mm to 0.4 mm, meeting the use requirements in application scenarios with extremely high precision requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view of an extremely thin robotic cable.

[0028] Reference numerals

[0029] 1. Center conductor; 2. Insulation medium; 3. Shielding layer; 4. Grounding metal wire; 5. 6-core electronic wire; 6. Outer sheath. DETAILED DESCRIPTION

[0030] The present application is further described in detail below with reference to the accompanying drawings.

[0031] In this embodiment, referring to Figure 1 An ultra-fine robot cable comprises a central conductor 1, an insulating medium 2, a shielding layer 3, a grounding metal wire 4, a 6-core electronic wire 5 and an outer sheath 6. The central conductor 1 mainly plays a role in signal transmission. The insulating medium 2 is sleeved on the outside of the central conductor 1. The shielding layer 3 is arranged close to the insulating medium 2. Several grounding metal wires 4 and at least one 6-core electronic wire 5 are twisted and braided in the outer sheath 6. Preferably, 5 grounding metal wires 4 and 6 6-core electronic wires 5 are provided. The shielding layer 3 is made of metal mesh or metal foil material. The 6-core electronic wire 5 includes a metal conductor and an insulating layer wrapped around the outside of the metal conductor. The thickness of the outer sheath 6 is 0.02 mm to 0.05 mm, achieving the effect of controlling the overall wire diameter at 0.35 mm to 0.4 mm.

[0032] Specifically, the center conductor 1 comprises a metal wire. The metal wire is made of a high-strength, high-toughness alloy material with a tensile strength between 550 MPa and 650 MPa, a yield strength between 500 MPa and 600 MPa, and a hardness between 150 HBW and 200 HBW, and has a diameter of 0.05 mm to 0.1 mm. Specific alloy materials may include copper-beryllium alloy or copper-nickel-titanium alloy, both of which are not only high in strength and excellent in toughness, but also have good electrical conductivity and bending resistance. Alternatively, copper-zinc alloy or copper-phosphorus-tin alloy may also be selected, which also meet the requirements of high strength and high toughness while also having good fatigue resistance and wear resistance.

[0033] Insulation medium 2 is made of a high-quality material with high temperature resistance and excellent tensile strength. It can operate stably in environments with temperatures of no less than 250°C and has a tensile strength of no less than 100 MPa. Specifically, polytetrafluoroethylene or polyimide can be used. These two materials have excellent high-temperature resistance and high tensile strength, making them suitable for operation in high-temperature and high-pressure environments. Alternatively, polyethylene or polyphenylene sulfide can also be used, which also offer excellent high-temperature resistance and tensile strength, as well as good electrical insulation properties.

[0034] Shielding layer 3 is placed outside the insulating medium 2 to reduce external electromagnetic interference. It is made of metal mesh or metal foil. Specifically, stainless steel mesh or aluminum foil can be used. These two materials not only have good electrical conductivity but also effectively shield electromagnetic interference. Copper mesh or copper foil can also be used, which also have good electromagnetic shielding performance and are relatively low in cost. Shielding layer 3 has a compact structure, a smooth outer surface, and a controllable thickness of 0.01 mm to 0.03 mm, ensuring that the overall cable diameter is as small as possible.

[0035] The grounding wire 4 serves as the grounding element of the cable, ensuring electromagnetic compatibility and safety. It can be made of copper or aluminum. Copper offers excellent electrical conductivity, while aluminum also offers good electrical conductivity and is lighter. The diameter of the grounding wire 4 is 0.03 mm to 0.07 mm, and its length matches that of the center conductor 1.

[0036] The 6-core electronic wire 5 includes a metal conductor and an insulating layer covering the metal conductor. The metal conductor can be copper wire or silver-plated copper wire. The former has excellent electrical conductivity, while the latter is also antioxidant and can maintain good performance in high-temperature environments. The insulating layer can be made of polyethylene or polyvinyl chloride. The former has excellent electrical insulation properties, while the latter also has good insulation properties and good wear resistance and flexibility. Alternatively, polyester film or polyamide film can be used as the insulating layer material. Both materials not only have good electrical insulation properties but also have high temperature resistance.

[0037] The outer sheath 6 is coated on the outside of the shielding layer 3, the 6-core electronic wire 5 and the grounding metal wire 4 to protect the internal cables from the influence of the external environment. The material of the outer sheath 6 can be polyurethane or polyvinyl chloride. The former has good wear resistance, flexibility and high temperature resistance, and the latter has good mechanical strength and wear resistance. In addition, polyethylene or silicone rubber can also be selected, which also have good temperature resistance and mechanical strength. The thickness of the outer sheath 6 is 0.02 mm to 0.05 mm, which can be adjusted according to actual needs to ensure that the extremely fine wire diameter design is maintained in the dimensional controllability of the entire cable, further reducing the overall volume of the cable, so that the cable can be more conveniently wired in a narrow space, and can better meet the requirements of the field of robotics.

[0038] Specifically, the six-core electronic cable 5 utilizes a novel twisting method, which more tightly twists the six-core electronic cable 5 and the grounding metal wire 4, further reducing the cable's wire diameter. This twisting method utilizes specialized twisting equipment and adjusts twisting parameters, such as pitch and number of twists, during the twisting process to achieve a more uniform and compact stranding. This not only improves electrical performance but also reduces the overall cable diameter to between 0.35 mm and 0.4 mm. Furthermore, combinations of twisted wires with varying pitches can be employed to increase cable stability and further reduce the impact of electromagnetic interference.

[0039] The implementation principle of this embodiment is as follows: By using an alloy material as the center conductor 1, a high-performance material as the insulating medium 2, and including a shielding layer 3, six-core electronic wire 5, and a grounding metal wire 4 within an outer sheath 6, this embodiment achieves extremely fine wire diameter control while maintaining excellent transmission performance, anti-interference capabilities, wear resistance, and high-temperature resistance, meeting the increasing demands of the field of robotics. Through the rational combination of multiple materials and structural optimization, the cable achieves a smaller overall wire diameter while meeting electrical performance requirements, making it better suited for applications in delicate operations.

[0040] Through the design and optimization of the specific scheme in this embodiment, not only the cable diameter is reduced, but also a breakthrough is achieved in key electrical performance, meeting the high standards in the field of robotics technology and improving the market competitiveness and application scope of the product.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ultra-thin robot cable, characterized in that: The invention comprises a central conductor (1), an insulating medium (2), a shielding layer (3), a grounding metal wire (4), a 6-core electronic wire (5) and an outer sheath (6); the insulating medium (2) is sleeved on the outside of the central conductor (1); the shielding layer (3) is arranged closely to the insulating medium (2); a plurality of the 6-core electronic wires (5) and the grounding metal wire (4) are arranged outside the shielding layer (3); and the outer sheath (6) is covered on the outside of the shielding layer (3), the 6-core electronic wire (5) and the grounding metal wire (4).

2. The ultra-thin robot cable according to claim 1, characterized in that: The central conductor (1) is made of an alloy material having a tensile strength between 550 MPa and 650 MPa, a yield strength between 500 MPa and 600 MPa, and a hardness between 150 HBW and 200 HBW.

3. The ultra-thin robot cable according to claim 1, characterized in that: The diameter of the central conductor (1) is 0.05 mm to 0.1 mm.

4. The ultra-thin robot cable according to claim 1, characterized in that: The insulating medium (2) is made of a material that can operate stably in an environment with a temperature not lower than 250° C. and has a tensile strength not lower than 100 MPa.

5. The ultra-thin robot cable according to claim 1, characterized in that: The shielding layer (3) is made of a metal mesh or a metal foil material.

6. The ultra-thin robot cable according to claim 1, characterized in that: The six-core electronic wire (5) comprises a metal conductor and an insulating layer covering the outside of the metal conductor.

7. The ultra-thin robot cable according to claim 1, characterized in that: The thickness of the outer sheath (6) is 0.02 mm to 0.05 mm.

8. The ultra-thin robot cable according to claim 1, characterized in that: The overall wire diameter of the ultra-thin robot cable is 0.35 mm to 0.4 mm.

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