CN212342320U

CN212342320U - Cable for high-strength anti-torsion anti-bending industrial robot

Info

Publication number: CN212342320U
Application number: CN202021346349.8U
Authority: CN
Inventors: 赵明; 石磊; 卢柱; 刘亮; 薛世鹏; 顾机勇; 朱杭忠
Original assignee: ZHEJIANG WANMA GROUP SPECIAL ELECTRON CABLE CO Ltd
Current assignee: ZHEJIANG WANMA GROUP SPECIAL ELECTRON CABLE CO Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-01-12
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a antitorque cable of buckling resistance for industrial robot of excelling in. The cable comprises insulating core wires, a central tensile component, an inner sheath, a copper foil wire braid layer and an outer sheath, wherein the central tensile component is positioned in the center of the cable, a plurality of multi-strand core wires are arranged around the central tensile component as the center and are twisted into a cable, the inner sheath is coated outside the cable, the copper foil wire braid layer is coated outside the inner sheath, and the outer sheath is coated outside the copper foil wire braid layer; the conductor and the insulating material are combined into an insulating core wire, and a plurality of insulating core wires are twisted to form a multi-strand core wire. The utility model discloses enable the cable more tensile, wear-resisting, resistant crooked, the life-span is more permanent.

Description

Cable for high-strength anti-torsion anti-bending industrial robot

Technical Field

The utility model relates to a cable for industrial robot of wire and cable technical field, concretely relates to antitorque commentaries on classics of excelling in is anti cable for industrial robot of buckling.

Background

Electric wires and cables are used in various fields of production and life. The cable has wide application, and the requirements on the shape, the electrical property, the mechanical property, the color, the oil resistance, the water resistance, the acid and alkali resistance and the like of the cable are different according to different use occasions. With the development of society, the production is advanced. The cable is applied to the industrial robot and has the most complex movement amount, the characteristic is that the cable is subjected to complex movements of bending and stretching in different directions continuously in the operation process of equipment and also subjected to different degrees of acceleration and tension, and the cable is one of the cables for the high-strength anti-torsion anti-bending industrial robot.

The cable for the high-strength anti-torsion and anti-bending industrial robot can cause conductor or insulation damage or cable distortion deformation including copper mesh braid layer fracture damage after long-term operation. Causing serious loss or potential safety hazard to production. Therefore, the cable for the high-strength anti-torsion anti-bending industrial robot needs to be replaced frequently, the production cost and the labor cost are increased, and the working efficiency is reduced. The traditional cable for the high-strength anti-torsion anti-bending industrial robot adopts a structure formed by common control cables, the common control cables are made of common materials, the insulating core wires are easy to loosen in the operation process of the cable, the core wires are easy to break or damage, and the damage of the braided shielding layer makes signals unstable and difficult to find, so that equipment failure is caused to influence production; or the cable is distorted and deformed, the distortion and deformation bring potential safety hazards, and the expected service life of the cable for the high-strength anti-torsion anti-bending industrial robot is shortened.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the background art, the utility model provides a soft, wear-resisting, tensile, long life's antitorque commentaries on classics of excelling in is resisted and is buckled industrial robot and use cable.

The utility model adopts the technical proposal that:

the utility model comprises an insulation core wire, a central tensile component, an inner sheath, a copper foil wire braid layer and an outer sheath, wherein the central tensile component is positioned at the center of the cable, a plurality of multi-strand core wires are arranged around the central tensile component and twisted into the cable, the inner sheath is coated outside the cable, a circle of copper foil wire braid layer is coated outside the inner sheath, and the outer sheath is coated outside the copper foil wire braid layer; the conductor and the insulating material are combined into an insulating core wire, and a plurality of insulating core wires are twisted to form a multi-strand core wire.

The insulating core wire is mainly composed of a conductor positioned on the core layer and an insulating material coated outside the core layer.

The pitch of the insulated core wire is 10 times of the overall diameter of the multiple strand core wire.

The central tensile component is formed by externally extruding PVC (polyvinyl chloride) by Kevlar wire drawing KEVLAR wires.

The outer sheath is made of polyurethane PUR.

The inner sheath adopt elastomer TPE.

The inner sheath is formed by extruding TPE around the insulating core wire outside the cable core.

The outer sheath is made of a copper foil wire braided layer and an extrusion type extrusion coating PUR.

The copper foil wire braided layer is made by braiding copper foil wires outside the inner sheath.

During preparation, the multiple groups of insulation core wires take the tensile assembly as the center, are untwisted into cables in a compact structure with a very small pitch, are extruded with the inner sheath, are woven by the copper foil wire, and are extruded with the outer sheath.

The tensile strength of the whole cable is increased through the central tensile component; the cable can be bent by the extremely small pitch back twisting, the cable forming stress is eliminated, the cable bending radius is reduced, and the bending life is prolonged; the inner sheath enables the cable core to be compact integrally; the copper foil wire braided layer is combined with the central tensile component, so that the overall tensile property of the cable is greatly increased, and the shielding requirement is met.

The utility model has the advantages that:

the utility model discloses structural design is ingenious, the position of rational arrangement center tensile subassembly, and insulating heart yearn is with minimum pitch around the formula stranding of back-twist of center tensile subassembly, inner sheath, copper foil weaving layer, PUR oversheath. The insulated core wire is untwisted around the central tensile component at a very small pitch to form a cable, so that the cable is softer and the insulated core wire cannot be broken; the cable core is externally extruded with a TPE inner sheath; the copper foil wire braided layer not only ensures the shielding requirement of the cable for the high-strength anti-torsion anti-bending industrial robot, but also improves the strength of the braided layer, so that the cable is not easy to damage in the movement process, and the integral tensile strength of the cable for the high-strength anti-torsion anti-bending industrial robot is increased; as the PUR of the outer sheath has excellent mechanical property, wear resistance, oil resistance, corrosion resistance, chemical resistance, wear resistance and the like, the PUR has good toughness and tear resistance.

To sum up, the utility model discloses a cable is softer, wear-resisting, tensile etc. more, has prolonged the life of the antitorque anti industrial robot cable of buckling that excels in greatly.

Drawings

Fig. 1 is a schematic cross-sectional structure view of the cable for an industrial robot according to the present invention.

In the figure: 1. an insulated core wire; 2. a central tensile member; 3. TPE inner sheaths; 4. a copper foil wire braid layer; 5. a PUR outer sheath; 11. a conductor; 12. an insulating material.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the concrete implementation includes an insulating core wire 1, a central tensile component 2, an inner sheath 3, a copper foil wire braid layer 4 and an outer sheath 5, the central tensile component 2 is located at the center of the cable, a plurality of multi-strand core wires are arranged around the central tensile component 2 as the center and twisted into a cable, the inner sheath 3 is extruded and coated outside the cable, a circle of copper foil wire braid layer 4 is coated outside the inner sheath 3, and the outer sheath 5 is extruded and coated outside the copper foil wire braid layer 4; the conductor 11 and the insulating material 12 are combined into an insulated core wire 1, and a plurality of such insulated core wires 1 are further twisted to form a multi-strand core wire.

In a specific embodiment, three multi-strand core wires are re-twisted to form the insulated core wire 1.

The insulated core wire 1 is mainly composed of a conductor 11 located in the core layer and an insulating material 12 located outside the core layer. The conductor 11 is stranded by adopting an extremely fine high-strength alloy copper wire, so that the flexibility is increased; the insulating material 12 is made of ETFE fluoroplastic, so that the insulating safety is ensured, and the outer diameter of the insulating core wire 1 can be very small. The pitch of the insulated core wire 1 is 10 times the overall diameter of the multiple strand core wire. The pitch of the insulated core wires 1 is the unit distance of the bending period after the plurality of insulated core wires 1 are twisted inside the multi-strand core wires, namely the distance between two bent wave crests. When cabling like this, central tensile subassembly 2 is in the cable core center of cable, and central tensile subassembly comprises KEVLAR silk crowded package PVC outward, and insulating heart yearn 1 winds central tensile subassembly back twist formula cabling with minimum pitch, can increase cable bendability and eliminate the cabling stress simultaneously, reduces cable bending radius and improves crooked life-span.

In specific implementation, the central tensile component 2 is formed by wrapping Kevlar wire in PVC by extrusion.

The outer sheath 5 is of polyurethane PUR. The PUR outer sheath 5 is extruded and wrapped in a semi-extrusion mode outside the copper foil wire woven layer 4, the appearance is round and neat, the cable is softer, wear-resistant and tensile, and the service life is longer.

The inner sheath 3 is made of elastomer TPE. The TPE inner sheath is extruded outside the cable core, so that the cable core is compact, the whole cabling cable core is compact, and the appearance is round. The inner sheath 3 is formed by extruding TPE around the insulating core wire 1 outside the cable core. The outer sheath 5 is made by extruding and wrapping PUR outside the copper foil wire braided layer 4.

Copper foil silk weaving layer 4 is to weave the copper foil silk in 3 outsides of inner sheath and makes, and increase strength when satisfying the shielding requirement for the weaving layer is more durable tensile, and resistant drawing has played the effect of shielding simultaneously. The copper foil wire braided layer 4 is combined with the central tensile component 2, so that the overall tensile resistance of the cable is greatly increased, and the cable forms a whole when stressed.

The embodiment of the utility model provides a condition as follows:

the embodiment is subjected to multiple tests, and the test result performance is good, and the strength, the torsion resistance and the bending resistance are excellent.

The specific test conditions were as follows:

1. and (4) carrying out the drag chain bending performance test of the electric wire and the cable by adopting a drag chain bending machine.

The experimental requirements are as follows: frequency 88 times/min; the bending radius is 48mm, the test length is 1.5m, and the bending times are more than 2000 ten thousand.

The experimental steps are as follows:

(1) installing the core wires and setting experimental data and checking whether the test is normal or not will be prepared.

(2) The test was started and the number of initial tests was 0.

(3) During the test, the test was observed to be normal, and the number of trials was recorded.

(4) After the test is finished, the experimental record and mark are made and the structure detection is prepared.

Many the utility model discloses an electric wire and cable accomplishes 32339972 tests, 5016259 tests, 20080426 tests altogether.

2. And (4) testing the bending performance of the electric wire and the electric cable by adopting an electric wire bending tester.

The experimental requirements are as follows: the hoisting weight is 500 g; the radius of the clamp is 40 mm; frequency is 88 times/min; the bending angle is + -90 degrees; the bending times are more than 2000 ten thousand.

The experimental steps are as follows:

(2) The test was started and the number of initial tests was 0.

Many the utility model discloses an electric wire and cable accomplishes 1558505 tests, 25198330 tests, 8161644 tests, 2168375 tests altogether.

Therefore, the utility model discloses can realize the anti torsional technological effect of buckling of excelling in.

Some modifications and variations of the present invention are also intended to fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. If the present invention discloses the above embodiments, the electric wire and cable with other structures obtained by adopting the same or similar structure is all within the protection scope of the present invention.

Claims

1. The utility model provides a cable for high-strength antitorque commentaries on classics bending resistance industrial robot which characterized in that: the cable comprises an insulating core wire (1), a central tensile component (2), an inner sheath (3), a copper foil wire braid layer (4) and an outer sheath (5), wherein the central tensile component (2) is located at the center of the cable, a plurality of multi-strand core wires are arranged around the central tensile component (2) as the center and are twisted to form a cable, the inner sheath (3) is coated outside the cable, a circle of copper foil wire braid layer (4) is coated outside the inner sheath (3), and the outer sheath (5) is coated outside the copper foil wire braid layer (4); the conductor (11) and the insulating material (12) are combined into an insulating core wire (1), and a plurality of insulating core wires (1) are twisted to form a multi-strand core wire.

2. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the insulating core wire (1) is mainly composed of a conductor (11) positioned on the core layer and an insulating material (12) positioned outside the core layer.

3. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the pitch of the insulated core wire (1) is 10 times of the overall diameter of the multiple strand core wire.

4. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the central tensile component (2) is formed by wrapping Kevlar wire in PVC by extrusion.

5. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the outer sheath (5) is made of polyurethane PUR.

6. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the inner sheath (3) adopts artificial rubber TPE.

7. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the inner sheath (3) is formed by extruding TPE around the insulating core wire (1) outside the cable core.

8. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the outer sheath (5) is made of a copper foil wire braided layer (4) and a PUR through extrusion coating.

9. The cable for high-strength torsion-resistant bending-resistant industrial robot according to claim 1, wherein: the copper foil wire braided layer (4) is formed by braiding copper foil wires outside the inner sheath (3).