Special high-flexibility torsion-resistant cable for industrial robot

Abstract

The utility model discloses a special high-flexibility torsion-resistant cable for an industrial robot, and the cable comprises a cable body which is internally provided with a power line core, a signal transmission line core, an insulating protection layer, an inner protection layer, a shielding layer 1, a reinforcing line, a wrapping layer, a shielding layer 2, an outer protection layer, a shielding reinforcing layer, and an outer sheath layer. The insulation protection layers are arranged on the outer surfaces of the power line cores and the signal transmission line cores respectively, the inner protection layer wraps the outer surfaces of the insulation protection layers on the power line cores and the signal transmission line cores, and the first shielding layer is arranged on the outer surface of the inner protection layer. According to the utility model, the whole structure can effectively enhance the high flexibility and anti-interference performance of the cable, at the same time, it is also ensured that the cable has good structural strength, better durability and sufficient stability, the bending life can reach more than 12 million times, and the service life of the cable is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a high-flexibility torsion-resistant cable specially used for industrial robots. Background Art

[0002] In modern industrial production and automated control systems, robots play an increasingly important role. With the development of science and technology, the application scope of robots continues to expand, and the demand for robot wires and cables continues to increase. The market prospects for robot wires and cables are very broad. The flexible cables installed in the robot arms are mainly used for robot body cables. Multi-joint manipulators and multi-degree-of-freedom machine devices require long-term three-dimensional torsion, bending and high-intensity movement. Therefore, the robot body cables need to withstand continuous torsion and bending mechanical stresses to meet the use requirements in various complex environments. However, the cables used for some robot bodies on the current market are insufficient in flexibility and have low overall stability. As the use time increases, they are very prone to deformation and breakage. The overall durability of the cables is not strong and their service life is short. Therefore, in order to solve such problems, the present application proposes a high-flexibility torsion-resistant cable specifically for industrial robots. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a highly flexible torsion-resistant cable specially used for industrial robots.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-flexibility torsion-resistant cable specially used for industrial robots, comprising a cable body, wherein a power supply core, a signal transmission core, an insulating protective layer, an inner protective layer, a shielding layer one, a reinforcing wire, a wrapping layer, a shielding layer two, an outer protective layer, a shielding reinforcement layer, and an outer sheath layer are respectively arranged in the cable body, wherein the insulating protective layers are respectively arranged on the outer surfaces of the power supply core and the signal transmission core, the inner protective layer is coated on the outer surface of the insulating protective layer on the power supply core and the signal transmission core, the shielding layer one is arranged on the outer surface of the inner protective layer, the reinforcing wire is interspersed and arranged between the insulating protective layer and the inner protective layer on the power supply core and the signal transmission core, the wrapping layer is coated on the outer surface of the shielding layer one on the power supply core and the signal transmission core, the shielding layer two is arranged on the outer surface of the wrapping layer, the outer protective layer is arranged on the outer surface of the shielding layer two, the shielding reinforcement layer is arranged on the outer surface of the outer protective layer, and the outer sheath layer is arranged on the outer surface of the shielding reinforcement layer.

[0005] As a further description of the above technical solution:

[0006] The power supply wire core and the signal transmission wire core are both formed by twisting a plurality of ultra-fine tinned wires, and a plurality of the power supply wire cores and the signal transmission wire cores are correspondingly arranged.

[0007] As a further description of the above technical solution:

[0008] The insulating protective layer, the inner protective layer and the outer protective layer are all made of TPE elastomer material.

[0009] As a further description of the above technical solution:

[0010] The first shielding layer, the second shielding layer and the shielding reinforcement layer are all composed of braided tinned wires.

[0011] As a further description of the above technical solution:

[0012] The reinforcement line is made of aramid material.

[0013] As a further description of the above technical solution:

[0014] The outer sheath layer is made of modified PVC material.

[0015] The utility model has the following beneficial effects:

[0016] The highly flexible and torsion-resistant cable specially designed for industrial robots has a core structure composed of multiple strands of ultra-fine tinned wires, which not only makes the internal core of the cable highly flexible, but also has good power and signal transmission effects. The insulation protective layer, inner protective layer and outer protective layer made of TPE elastomer material not only ensure that the entire cable has good structural strength, but also has excellent toughness and elasticity, high creep resistance, impact resistance and bending fatigue resistance. This ensures that the entire cable has good structural stability, thereby enhancing its durability. The shielding layer 1, shielding layer 2 and shielding layer 3 are formed by tinned wire edges. The reinforcement layer structure can play a good anti-interference effect, ensure the stability of signal transmission, and effectively isolate the influence of the external environment on the operation of the cable. By adopting the outer sheath layer of PVC with modified additives, the cable can have high elasticity and flexibility, and has good wear resistance, oil resistance and chemical resistance, so that the cable can be used in a variety of complex environments. The whole structure can effectively enhance the high flexibility and anti-interference of the cable, while also ensuring that it has good structural strength, better durability, sufficient stability, and a bending life of more than 12 million times, which effectively improves the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the highly flexible torsion-resistant cable specially designed for industrial robots proposed by the utility model.

[0018] Legend:

[0019] 1. Cable body; 2. Power supply core; 3. Signal transmission core; 4. Insulation protection layer; 5. Inner protection layer; 6. Shielding layer one; 7. Reinforcement wire; 8. Wrapping layer; 9. Shielding layer two; 10. Outer protection layer; 11. Shielding reinforcement layer; 12. Outer sheath layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Reference Figure 1The utility model provides an embodiment: a high-flexibility torsion-resistant cable for industrial robots, including a cable body 1, wherein the cable body 1 is respectively provided with a power supply core 2, a signal transmission core 3, an insulating protective layer 4, an inner protective layer 5, a shielding layer 1 6, a reinforcing wire 7, a wrapping layer 8, a shielding layer 2 9, an outer protective layer 10, a shielding reinforcement layer 11, and an outer sheath layer 12, wherein the power supply core 2 and the signal transmission core 3 are both twisted by multiple strands of ultra-fine tinned wires, and the power supply core 2 and the signal transmission core 3 are correspondingly provided with multiple ones, the power supply core 2 is located in the center, and the signal transmission core 3 surrounds the periphery of the power supply core 2. The power supply and transmission cores are twisted with multiple strands of ultra-fine tinned wires to make them highly flexible, and the power and signal transmission effects are very good. The insulating protective layers 4 are respectively arranged on the outer surfaces of the power supply core 2 and the signal transmission core 3. The inner protective layer 5 is coated on the outer surface of the insulating protective layer 4 on the power supply core 2 and the signal transmission core 3. The shielding layer 6 is arranged on the outer surface of the inner protective layer 5. The reinforcing wire 7 is interspersed between the insulating protective layer 4 and the inner protective layer 5 on the power supply core 2 and the signal transmission core 3. The reinforcing wire 7 is made of aramid material. During cabling and twisting, a plurality of tensile-resistant aramid filaments are inserted inside the cable, which can enhance the tensile strength of the cable structure and ensure that the cable is not damaged by tension in the case of frequent reciprocating movement and bending. The sheathing layer 8 is coated on the outer surface of the shielding layer 6 on the power supply core 2 and the signal transmission core 3. The sheathing layer 8 is in the form of a polyester tape wrapping, which has good structural performance, good elasticity, corrosion resistance, and strong impact resistance, and can assist in enhancing the structural strength of the entire cable. The shielding layer 9 is arranged on the outer surface of the sheathing layer 8, the outer protective layer 10 is arranged on the outer surface of the shielding layer 9, and the shielding reinforcement layer 11 is arranged The outer sheath layer 12 is arranged on the outer surface of the outer protective layer 10 and the outer sheath layer 12 is made of modified PVC material. By using the outer sheath layer 12 made of PVC with modified additives, the cable can have high elasticity and flexibility, and has good wear resistance, oil resistance and chemical resistance, so that the cable can be used in a variety of complex environments. The whole structure can effectively enhance the high flexibility and anti-interference ability of the cable, while also ensuring that it has good structural strength, better durability, sufficient stability, and a bending life of more than 12 million times, which effectively improves the service life of the cable.

[0023] The insulating protective layer 4, the inner protective layer 5 and the outer protective layer 10 are all made of TPE elastomer material. The TPE elastomer material has excellent toughness and elasticity, high creep resistance, impact resistance and bending fatigue resistance, etc., which ensures the high flexibility of the wire core. During the extrusion process, the TPE elastomers of the inner protective layer 5 and the outer protective layer 10 are placed in a paint pool after cooling, and a layer of anti-interference paint is coated on the surface. After that, it is dried in an oven to form a layer of anti-interference coating on the surface, thereby enhancing the anti-interference ability of the entire cable, thereby effectively reducing the influence of electromagnetic interference on the signal transmission core 3 in the sheath.

[0024] Shielding layer 1 6, shielding layer 2 9, and shielding reinforcement layer 11 are all composed of braided tinned wires. The shielding layer structure formed by the tinned wire braided mesh can ensure the cable's anti-interference and stable signal transmission characteristics. Combined with the setting of the TPE elastomer outer coating, it can effectively prevent the external environment from affecting the performance of the cable during operation and ensure the stability of the cable during operation.

[0025] Working principle: When using highly flexible torsion-resistant cables specially designed for industrial robots, the wire core structure formed by twisting multiple strands of ultra-fine tinned wires not only makes the internal core of the cable highly flexible, but also has good power and signal transmission effects. The insulating protective layer 4, inner protective layer 5, and outer protective layer 10 made of TPE elastomer material not only ensure that the entire cable has good structural strength, but also has excellent toughness and elasticity, high creep resistance, impact resistance, and bending fatigue resistance. This ensures that the entire cable has good structural stability, thereby enhancing its durability. The shielding layer 1 6, shielding layer 2 9, and shielding reinforcement layer 11 structure are formed by tinned wire edges, which can play a good anti-interference effect, ensure the stability of signal transmission, and effectively isolate the influence of the external environment on the cable operation. The outer sheath layer 12 made of PVC with modified additives can make the cable have high elasticity and flexibility, and have good wear resistance, oil resistance, and chemical resistance, so that the cable can be used in a variety of complex environments.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly flexible torsion-resistant cable for industrial robots, comprising a cable body (1), characterized in that: The cable body (1) is provided with a power supply core (2), a signal transmission core (3), an insulating protective layer (4), an inner protective layer (5), a shielding layer 1 (6), a reinforcing wire (7), a wrapping layer (8), a shielding layer 2 (9), an outer protective layer (10), a shielding reinforcement layer (11), and an outer sheath layer (12), respectively; the insulating protective layer (4) is provided on the outer surface of the power supply core (2) and the signal transmission core (3), respectively; the inner protective layer (5) is covered on the outer surface of the insulating protective layer (4) on the power supply core (2) and the signal transmission core (3), and the shielding layer 1 (6) is provided on the inner protective layer (5). The reinforcing wire (7) is interspersed and arranged at a position between the insulating protective layer (4) and the inner protective layer (5) on the power supply line core (2) and the signal transmission line core (3); the wrapping layer (8) is arranged to cover the outer surface position of the shielding layer 1 (6) on the power supply line core (2) and the signal transmission line core (3); the shielding layer 2 (9) is arranged at the outer surface position of the wrapping layer (8); the outer protective layer (10) is arranged at the outer surface position of the shielding layer 2 (9); the shielding reinforcement layer (11) is arranged at the outer surface position of the outer protective layer (10); and the outer sheath layer (12) is arranged at the outer surface position of the shielding reinforcement layer (11).

2. The highly flexible torsion-resistant cable for industrial robots according to claim 1 is characterized in that: The power supply wire core (2) and the signal transmission wire core (3) are both formed by twisting a plurality of ultra-fine tinned wires, and a plurality of the power supply wire core (2) and the signal transmission wire core (3) are correspondingly arranged.

3. The highly flexible torsion-resistant cable for industrial robots according to claim 1, characterized in that: The insulating protective layer (4), the inner protective layer (5) and the outer protective layer (10) are all made of TPE elastomer material.

4. The highly flexible torsion-resistant cable for industrial robots according to claim 1, characterized in that: The shielding layer one (6), the shielding layer two (9) and the shielding reinforcement layer (11) are all made of braided tinned wires.

5. The highly flexible torsion-resistant cable for industrial robots according to claim 1, characterized in that: The reinforcing wire (7) is made of aramid material.

6. The highly flexible torsion-resistant cable for industrial robots according to claim 1, characterized in that: The outer sheath layer (12) is made of modified PVC material.

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