Cable for robot

Abstract

The utility model relates to a cable for a robot, which comprises a communication line, a power line and an outer sheath, and the outer sheath is extruded outside the communication line and the power line. Wherein the communication line comprises a conductor, an insulating layer and an inner sheath, the conductor is formed by multiple strands of oxygen-free bare soft copper wires in a compound twisting mode, the insulating layer is extruded on the outer side of the conductor, and the inner sheath is extruded on the outer side of the insulating layer; the power line comprises a plurality of insulated wires and first bulletproof wires, and the first bulletproof wires are filled among the plurality of insulated wires to be twisted. According to the cable for the robot, the moving and bending speed of the cable is improved and the service life of the cable is prolonged through optimizing a process structure and materials under the condition of meeting frequent moving and twisting use. The cable can be circularly bent and twisted for more than 25,000,000 times under the frequency of more than 60 times per minute, the conductor is not broken, the insulation is not broken, and the surface is free of cracks.

Description

TECHNICAL FIELD

[0001] The utility model relates to wire and cable technical field especially is a cable for robot. BACKGROUND

[0002] The robot cable is the cable that is used in industrial robot, is used specially in the connection of the original piece in the system, completes the power supply, signal, control to the robot, maintains the normal operation of the whole system, plays the protection and support role to the whole system.

[0003] Due to the special use characteristics of the robot, the matched cable product is required to have high strength, high flexibility, good torsion resistance, safety and other characteristics to meet the use requirements of the robot in the process of multiple movements and vibrations.

[0004] Although there are more and more mobile robot cables on the market at present, different bending times are also all good, from 3 million times to 20 million times, but the disadvantage is that while meeting the signal transmission, the moving frequency can only reach about 30 times / min. UTILITARY MODEL CONTENTS

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the cable cannot consider the signal transmission speed and the moving frequency in the prior art.

[0006] To solve the above technical problems, the utility model provides a cable for robot, which comprises a communication line, a power line and an outer sheath, and the outer sheath is extruded and wrapped outside the communication line and the power line.

[0007] In an embodiment of the utility model, the material of the outer sheath and the inner sheath is thermoplastic polyurethane.

[0008] In an embodiment of the utility model, the conductor includes conductor body one and conductor body two, conductor body one is made of 15 0.08mm square thin tinned copper monofilament and the middle of thin tinned copper monofilament is added bulletproof silk, and conductor body two is made of 38 0.08mm square thin tinned copper monofilament and the middle of thin tinned copper monofilament is added bulletproof silk.

[0009] In an embodiment of the utility model, the thickness of the insulation layer is 0.35 mm.

[0010] In an embodiment of the utility model, the inner sheath includes two insulated cores and reinforcing members, the insulated core is made of 15 0.08mm square thin tinned copper monofilament, and the two sides of the insulated core are filled with a reinforcing member respectively, and the two insulated cores and reinforcing members are wrapped with a tape braid to form the inner sheath.

[0011] In an embodiment of the utility model, the material of the insulation layer is thermoplastic polyurethane.

[0012] In an embodiment of the utility model, the number of the insulated wires is three, and the bulletproof silk one is arranged in the middle of the three insulated wires.

[0013] In an embodiment of the utility model, the number of the communication lines is two, the number of the power lines is three, and the middle of the communication lines and the power lines is filled with the reinforcing members.

[0014] In an embodiment of the utility model, the filling layer is arranged between the communication lines, the power lines and the reinforcing members.

[0015] In an embodiment of the utility model, the reinforcing member two is arranged between the conductors.

[0016] The above technical scheme of the utility model has the following beneficial effects compared with the prior art:

[0017] The robot cable provided by the utility model can be used under the condition of frequent moving and twisting, and the moving and bending speed and service life of the cable are improved through process structure and material optimization. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and combined with the drawings, wherein

[0019] Figure 1 It is the cross-sectional view of the robot cable in the preferred embodiment of the utility model.

[0020] The communication line 100, the power line 200, the outer sheath 300, the reinforcing member 400, the filling layer 500, the conductor 1, the insulating layer 2, the inner sheath 3, the insulated wire 4, the bulletproof silk 1 5 and the reinforcing member 2 6 are indicated by reference numerals. DETAILED DESCRIPTION

[0021] The utility model will be further explained below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0022] Referring to Figure 1 The utility model discloses a cable for robot, including: communication line 100, power line 200 and outer sheath 300, the outer sheath 300 is extruded and is packed in the outside of communication line 100 and power line 200, wherein, communication line 100 includes conductor 1, insulating layer 2 and inner sheath 3, the conductor 1 is made of the multiple strands of oxygen -free bare soft copper wire and is twisted, the conductor 1 is extruded and is packed insulating layer 2 in the outside, the outside of insulating layer 2 is extruded and is packed a layer of inner sheath 3, the outside of oblique shield layer is covered with a layer of inner sheath layer, effectively protects the internal wire core, power line 200 includes several insulated wires 4 and bulletproof silk 1 5, the several insulated wires 4 are filled with bulletproof silk 1 5 and are twisted and are formed.

[0023] Communication line 100 is formed by two groups of twisted pairs, each group of twisted pairs is filled with a bulletproof silk in the gap on both sides of the twisted pairs, and is wrapped with a layer of metal tape, and the oblique shield layer is added outside the metal tape, the oblique shield layer is softer than the braided layer, and the combination of the layer of metal tape and the oblique shield layer can compensate for the deficiency of the shield layer which is slightly worse than the braided layer. Power line 200 is formed by nine-core insulated wire cores, and each group of three-core wires is twisted to form a cable, and two bulletproof silk elements are filled in the center of each group of cables to increase the tensile resistance.

[0024] The conductor 1 adopts oxygen -free bare soft copper wire, and the single wire meets the national standard 6 conductor requirements, and the conductors of different layers adopt reasonable twisting direction and small twisting pitch, so that the internal stress can be offset and the softness can be increased, the bulletproof silk is added in the conductor as a tensile element, and the bending and twisting performance and the frequency are greatly improved.

[0025] The materials of the outer sheath 300 and the inner sheath 3 are thermoplastic polyurethane, the thermoplastic polyurethane greatly increases the material strength under the premise of ensuring softness, can effectively protect the conductor when bending and twisting, and improves the twisting frequency. The thermoplastic polyurethane has excellent oil resistance, good toughness, wear resistance, low temperature resistance, water resistance, aging resistance, acid and alkali resistance, long service life, anti-ultraviolet function and many excellent functions, is suitable for harsh environments such as oil stains, acid and alkali, low temperature environment, has excellent strength and softness performance, and meets the use in the environment of frequent twisting of the product.

[0026] The conductor 1 includes a conductor body one and a conductor body two, the conductor body one is composed of 15 fine plated tin copper monofilaments of 0.08 mm2, and the middle of the fine plated tin copper monofilaments is added with a bulletproof wire, and the conductor body two is composed of 38 fine plated tin copper monofilaments of 0.08 mm2, and the middle of the fine plated tin copper monofilaments is added with a bulletproof wire. Wherein 20 AWG is composed of 7 groups of 15 fine plated tin copper monofilaments of 0.08 mm2, and the middle is added with a bulletproof wire to increase the tensile property, and 16 AWG is composed of 7 groups of 38 fine plated tin copper monofilaments of 0.08 mm2, and the middle is added with a bulletproof wire to increase the tensile property, to form the conductor 1.

[0027] The material of the insulation layer 2 is thermoplastic polyurethane, which greatly increases the material strength under the premise of ensuring softness, can effectively protect the conductor when bending and twisting, and improves the twisting frequency. The thickness of the insulation layer 2 is 0.35 mm.

[0028] The inner sheath 3 includes two insulated cores and reinforcing members, the insulated cores are composed of 15 fine plated tin copper monofilaments of 0.08 mm2, and the two sides of the insulated cores are filled with a reinforcing member respectively, and the two insulated cores and the reinforcing members are wrapped with a tape to form the inner sheath 3.

[0029] The insulation wire 4 is three, the bulletproof wire one 5 is arranged in the middle of the three insulation wires 4. The nine-core 19 AWG insulated core is divided into three groups, each group has three cores, the center of each group is filled with a bulletproof wire to form a cable, the two groups of communication lines 100 and the three groups of power lines 200 are assembled into a cable by filling a reinforcing filler in the center, and a thermoplastic polyurethane elastomer outer sheath 300 is extruded on the outside.

[0030] The number of the communication line 100 is 2, the number of the power line 200 is 3, and the middle of the communication line 100 and the power line 200 is filled with a reinforcing member 400. The communication line 100, the power line 200 and the reinforcing member 400 are provided with a filling layer 500.

[0031] The conductor 1 is provided with a reinforcing member two 6. The cable for the robot has a total of 13 insulated cores, which is composed of two groups of communication lines and three groups of power lines in a 0+5 structure, and a reinforcing filler composed of a bulletproof wire and a filling strip is filled in the center. This structure makes the five groups of core wires on the periphery basically not bear force, ensures balanced force, greatly avoids the core wires being twisted and broken caused by unbalanced force, especially protects the communication line group, ensures effective transmission of signals, and greatly improves the overall torsional frequency and frequency of the cable and transmission requirements.

[0032] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A cable for a robot, characterized in that It includes: Communication line, power line and outer sheath, the outer sheath is extruded outside the communication line and power line; Wherein, the communication line includes conductor, insulating layer and inner sheath, the conductor is twisted by a plurality of oxygen-free bare copper wire, the conductor is extruded outside the insulating layer, the outer side of the insulating layer is extruded by a layer of inner sheath; The power line includes several insulating wires and bulletproof silk one, the several insulating wires are filled with bulletproof silk one and twisted.

2. The cable for a robot according to claim 1, characterized in that: The material of the outer sheath and the inner sheath is thermoplastic polyurethane.

3. The cable for a robot according to claim 1, characterized by: The conductor includes conductor body one and conductor body two, the conductor body one is twisted by 15 0.08mm² thin tin copper monofilament, and the middle of the thin tin copper monofilament is added with bulletproof silk, the conductor body two is twisted by 38 0.08mm² thin tin copper monofilament, and the middle of the thin tin copper monofilament is added with bulletproof silk.

4. The cable for a robot according to claim 1, characterized by: The thickness of the insulating layer is 0.35mm.

5. The cable for a robot according to claim 1, characterized by: The inner sheath includes two insulating wire cores and reinforcing members, the insulating wire core is twisted by 15 0.08mm² thin tin copper monofilament, the two sides of the insulating wire core are filled with a reinforcing member, the two insulating wire cores and the reinforcing members are wrapped with tape knitted inner sheath to form the inner sheath.

6. The cable for a robot according to claim 1, characterized by: The material of the insulating layer is thermoplastic polyurethane.

7. The cable for a robot according to claim 1, characterized by: The insulating wire is three, the bulletproof silk one is arranged in the middle of the three insulating wires.

8. The cable for a robot according to claim 1, characterized by: The number of communication lines is 2, the number of power lines is 3, and the middle of the communication line and power line is filled with reinforcing member.

9. Cable for robots according to claim 8, characterized in that: The communication line, power line and reinforcing member are provided with a filling layer.

10. The cable for a robot according to claim 1, characterized by: The conductor is provided with a reinforcing member two.

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