High-performance anti-torsion cable special for robot

Abstract

The utility model discloses a high-performance anti-torsion cable special for a robot, and belongs to the technical field of cables. Comprising a wire core, a PVC adhesive tape, a shielding layer, an outer sheath layer and a filling layer II, the inner ring of the outer sheath layer is provided with a shielding layer, and the shielding layer is internally provided with a plurality of wire cores and a PVC adhesive tape. A plurality of wire cores are arranged at the periphery of the PVC adhesive tape; a filling layer II is filled between the wire cores and the shielding layer; each wire core comprises a conductor, an insulating layer, a filling layer I and an inner sheath layer; a plurality of conductors are arranged in the inner sheath layer at intervals, an insulating layer is sleeved outside the conductors, and a filling layer I is filled between the insulating layer and the inner sheath layer; a plurality of inner cores are arranged on the periphery of the PVC adhesive tape, the inner cores are twisted into a preset screw pitch structure by copper wires, and an insulating layer is arranged outside the screw pitch structure; and an inner bandage is arranged outside the inner core and surrounds the inner core and the PVC adhesive tape. The inner binding band enables the cable to slide smoothly when the cable is twisted, friction damage is reduced to the maximum extent, and the durability of the cable can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and in particular relates to a high-performance cable special for torsion-resistant robots. Background Art

[0002] The practical application of robots in many production fields has proven their remarkable impact in improving automation levels, enhancing labor productivity, product quality, economic benefits, and working conditions. High-performance, torsion-resistant cables for robots are particularly important when robots are in frequent operation. High-quality cables can extend the service life of robots and save significant manpower, material, and financial resources. Existing cables for robots have weak torsion resistance. With conventional cables, when the cable is bent or twisted, the insulation of the core wires rubs against each other rather than sliding, exerting relatively high stress on the core wires, leading to damage or disconnection of the conductors.

[0003] Therefore, there is an urgent need for a high-performance torsion-resistant robot-specific cable to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a high-performance torsion-resistant cable for robots to solve the above technical problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-performance torsion-resistant robot-specific cable, comprising a wire core, a PVC strip, a shielding layer, an outer sheath layer and a second filling layer; the inner ring of the outer sheath layer is provided with a shielding layer, and a plurality of wire cores and PVC strips are provided inside the shielding layer; a plurality of wire cores are provided on the periphery of the PVC strip, and a second filling layer is filled between the wire cores and the shielding layer; the wire core comprises a conductor, an insulating layer, a first filling layer and an inner sheath layer; a plurality of conductors are provided in the gap within the inner sheath layer, an insulating layer is provided on the outer jacket of the conductor, and a first filling layer is filled between the insulating layer and the inner sheath layer; a plurality of inner cores are provided on the periphery of the PVC strip, the inner core is twisted into a predetermined pitch structure by copper wire, and an insulating layer is provided outside the pitch structure; an inner binding tape is provided outside the inner core, and the inner binding tape surrounds the inner core and the PVC strip.

[0006] The conductor is made of copper wire, and high-strength Kevlar wire is added in the middle of the copper wire and finely twisted into strands.

[0007] The inner ring of the inner sheath layer surrounds the metal layer and the thin film of the insulating layer, and the metal layer is located radially outside the inner ring of the inner sheath layer.

[0008] The wire core is twisted with multiple conductors, and the conductors are wrapped with non-woven fabrics; the twisted wire cores are twisted twice to form a total cable, and the gaps and the middle are filled with a second filling layer and PVC strips.

[0009] The insulating layer is made of TPEE material.

[0010] The outer ring of the conductor is wrapped with aluminum foil, the shielding layer is arranged on the outside of the aluminum foil, and a tinned layer is arranged on the shielding layer.

[0011] The outer sheath layer is made of high-molecular environmentally friendly nitrile material.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model is provided with a conductor, an insulating layer, a first filling layer, an inner sheath layer, a shielding layer, an outer sheath layer, a second filling layer, a wire core, an inner core and an inner binding tape; an inner binding tape is provided outside a plurality of inner cores, the inner binding tape surrounds and combines the inner core with the PVC tape and plays a role in maintaining the round shape, and the inner binding tape enables the cable to slide smoothly when twisted, thereby minimizing friction damage, which can greatly improve the durability of the cable; the conductor is made of tinned copper wire, and high-strength Kevlar wire is added in the middle of the ultra-fine oxygen-free copper wire to be finely twisted in strands, and then multiple strands are twisted, which can improve the bending performance of the conductor and improve the tensile strength; the tinned copper wire has low resistance, is resistant to oxidation and aging, and has fast and stable transmission, which can prevent electromagnetic noise interference on the electrical circuit and protect its own signal from interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a high-performance torsion-resistant robot cable;

[0015] In the figure: 1. Conductor; 2. Insulation layer; 3. Filling layer 1; 4. Inner sheath layer; 5. PVC tape; 6. Shielding layer; 7. Outer sheath layer; 8. Filling layer 2; 9. Wire core; 10. Inner core; 11. Inner binding tape. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1The utility model provides a technical solution: a high-performance anti-torsion robot special cable, comprising a wire core 9, a PVC tape 5, a shielding layer 6, an outer sheath layer 7 and a second filling layer 8; the inner ring of the outer sheath layer 7 is provided with a shielding layer 6, and a plurality of wire cores 9 and a PVC tape 5 are provided inside the shielding layer 6; a plurality of wire cores 9 are provided on the periphery of the PVC tape 5, and a filling layer 2 8 is filled between the wire core 9 and the shielding layer 6; the wire core 9 comprises a conductor 1, an insulating layer 2, a filling layer 3 and an inner sheath layer 4; a plurality of conductors 1 are provided in the gap within the inner sheath layer 4, an insulating layer 2 is provided on the outer sleeve of the conductor 1, and a filling layer 3 is filled between the insulating layer 2 and the inner sheath layer 4; a plurality of inner cores 10 are provided on the periphery of the PVC tape 5, and the inner core 10 is twisted into a predetermined pitch structure by copper wire, and an insulating layer 2 is provided outside the pitch structure

[0018] The conductor 1 is made of copper wire, and high-strength Kevlar wire is added in the middle of the ultra-fine oxygen-free copper wire to be fine-twisted in strands, and then multiple strands are twisted together, which can improve the bending performance of the conductor and increase the tensile strength.

[0019] The copper wire of the conductor 1 is a tinned copper wire, which has low resistance, is resistant to oxidation and aging, and has fast and stable transmission, thereby preventing electromagnetic noise interference on the electrical circuit and protecting its own signal from interference.

[0020] The inner circle of the inner sheath layer 4 surrounds the metal layer and the insulating layer, and the metal layer can be located radially outside the inner circle of the inner sheath layer 4. The metal layer can be an aluminum foil layer applied to the insulating layer, for example, by electroplating, lamination, adhesion or other processes.

[0021] The wire cores 9 are first twisted in groups, that is, multiple conductors 1 are twisted together, and then filled with a filling layer 3, and the conductors 1 are wrapped with non-woven fabric; the twisted wire cores 9 are twisted a second time to form a total cable, and the gaps and middles are filled with a filling layer 2 8 and a PVC strip 5, which can make the cable more rounded, the finished product more beautiful, and the toughness and tensile strength better.

[0022] The cable is made of multiple strands twisted together, so that the cores 9 are more closely connected together. For robot cables that need to be repeatedly twisted, the usage rate will be greater; the gaps in the cable of the utility model are filled with cotton thread to increase the tensile load-bearing capacity, making it more flexible and the cable maintains high tensile resistance at the same time; a layer of non-woven fabric is also wrapped between the core 9 and the overall shielding layer to buffer the impact caused by the movement of the core 9.

[0023] The insulating layer 2 is made of TPEE material, and TPEE has the characteristics of high strength, high elasticity, oil resistance, acid and alkali resistance, high temperature resistance, radiation resistance, and excellent dynamic mechanical properties. It is a material with good wear resistance, excellent fatigue resistance and low hysteresis loss, and is an ideal material for multiple cyclic load conditions.

[0024] The outer circles of the plurality of conductors 1 are wrapped with aluminum foil, the shielding layer 6 is arranged on the outside of the aluminum foil, and a tinned layer is provided on the shielding layer 6.

[0025] The outer sheath layer 7 is made of a high-molecular-weight, environmentally friendly nitrile material. Compared with ordinary PVC material, the environmentally friendly nitrile material has better flexibility and is less likely to break. In addition, its oil resistance, corrosion resistance and cold resistance are better than ordinary PVC, making it more adaptable to the robot working under harsh conditions.

[0026] The operating temperature range of the utility model is -50°C to +180°C, and the hardness range is 30-75D, so it can adapt to more environments with high temperature requirements.

[0027] An inner binding belt 11 is provided outside the inner cores 10 , and the inner binding belt 11 surrounds and combines the inner cores 10 and the PVC strips 5 and plays a role in maintaining the round shape.

[0028] In the case of a conventional cable, when bending or twisting is applied to the cable, friction occurs between the insulation of the core wires instead of sliding, and at this time, the stress applied to the core wires is relatively large, resulting in damage or disconnection of the conductors.

[0029] In the case of conventional cables, non-woven fabric or sintered fluoropolymer is used as the inner tape 11. However, in the case of sintered fluoropolymer, the strength and friction coefficient are relatively high, so when torsion acts on the cable, the stress cannot be absorbed and the stress is transferred to the inner core 10. In addition, if torsion acts on the cable, the inner core 10 may be damaged due to friction between the inner tape 11 and the inner core 10.

[0030] Therefore, in the present invention, the inner binding belt 11 has a relatively small friction coefficient and can be composed of an unsintered fluoropolymer with strong lubricity, which enables the cable to slide smoothly when twisted, minimizing friction damage, which can greatly improve the durability of the cable.

[0031] The cable of the present invention is used in a robot, the inner core 10 can be configured to be used for communication to exchange information with the outside world, and the wire core 9 can be configured to be used for power supply.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-performance torsion-resistant robot cable, characterized in that: The invention comprises a wire core (9), a PVC adhesive strip (5), a shielding layer (6), an outer sheath layer (7) and a second filling layer (8); the inner ring of the outer sheath layer (7) is provided with a shielding layer (6), and a plurality of wire cores (9) and PVC adhesive strips (5) are provided inside the shielding layer (6); a plurality of wire cores (9) are provided on the outer periphery of the PVC adhesive strip (5), and a second filling layer (8) is filled between the wire cores (9) and the shielding layer (6); the wire core (9) comprises a conductor (1), an insulating layer (2), a first filling layer (3) and an inner sheath layer ( 4); a plurality of conductors (1) are arranged in the inner gap of the inner sheath layer (4); an insulating layer (2) is provided on the outer jacket of the conductor (1); a filling layer (3) is filled between the insulating layer (2) and the inner sheath layer (4); a plurality of inner cores (10) are arranged on the periphery of the PVC strip (5); the inner cores (10) are twisted into a predetermined pitch structure by copper wire, and an insulating layer (2) is arranged outside the pitch structure; an inner binding band (11) is arranged outside the inner core (10), and the inner binding band (11) surrounds the inner core (10) and the PVC strip (5).

2. The high-performance torsion-resistant robot cable according to claim 1, characterized in that: The conductor (1) is made of copper wire, and high-strength Kevlar wire is added in the middle of the copper wire and finely twisted into strands.

3. The high-performance torsion-resistant robot cable according to claim 1, characterized in that: The inner ring of the inner sheath layer (4) surrounds a metal layer and a thin film of an insulating layer, and the metal layer is located radially outside the inner ring of the inner sheath layer (4).

4. The high-performance torsion-resistant robot cable according to claim 1, characterized in that: The wire core (9) is twisted with multiple conductors (1), and the conductors (1) are wrapped with non-woven fabric; the twisted wire core (9) is twisted twice to form a total cable, and the gaps and the middle are filled with a second filling layer (8) and a PVC strip (5).

5. The high-performance torsion-resistant robot cable according to claim 1, characterized in that: The insulating layer (2) is made of TPEE material.

6. The high-performance torsion-resistant robot cable according to claim 1, characterized in that: The outer ring of the conductor (1) is wrapped with aluminum foil, the shielding layer (6) is arranged on the outside of the aluminum foil, and a tinned layer is provided on the shielding layer (6).

7. The high-performance torsion-resistant robot cable according to claim 1, characterized in that: The outer sheath layer (7) is made of a high-molecular-weight, environmentally friendly nitrile material.

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