CN215118397U - Torsion-resistant special cable for robot - Google Patents

Abstract

The utility model relates to a robot cable technical field particularly relates to resistant torsional special cable of robot, include: the outer sides of the wires are coated with insulating layers; the elastic wire cores are centrally symmetrically stranded in the wire cores formed by stranding the wires, so that the wires can radially displace under the conditions of bending and twisting of the cable; the wrapping layer is wrapped on the outer side of the lead; through setting up the sinle silk of wire and the mutual transposition of elasticity sinle silk, make the cable core whole under crooked or twist reverse the operating mode, can radially extrude elasticity sinle silk between the wire, make elasticity sinle silk shrink, for the wire provides the deformation space, can release the bending, torsional stress, and set up two-layer sparse shielding net relatively, set up the elastic braid layer between two-layer shielding net, when guaranteeing the shielding effect, make the shielding layer more soft flexible, change and weave the inseparable difficult crooked torsional condition of shielding layer in the past.

Description

Torsion-resistant special cable for robot

Technical Field

The utility model relates to a wire and cable technical field particularly relates to resistant torsional special cable of robot.

Background

Industrial robots are multi-joint manipulators or multi-degree-of-freedom machine devices widely used in the industrial field, have a certain degree of automation, and can realize various industrial processing and manufacturing functions depending on the power energy and control capability of the industrial robots. Industrial robots are widely used in various industrial fields such as electronics, logistics, chemical industry, etc., and today's industrial robots are generally used for spot welding, arc welding, assembling, painting, cutting, handling, packing, palletizing, etc., so that cables move continuously and are highly bent or twisted.

The existing control cable mainly comprises a core wire, an insulating layer, a shielding layer and a sheath, wherein the core wire is usually formed by twisting metal wires, the twisting performance and the torsion resistance of the robot cable are poor due to tight twisting of the wires and the addition of the metal braided shielding layer, and the stress of the core wire cannot be released under frequent bending and torsion working conditions, so that the core wire of the cable is easy to break and damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant torsional special cable of robot, include: the outer sides of the wires are coated with insulating layers; the elastic wire cores are centrally symmetrically stranded in the wire cores formed by stranding the wires, so that the wires can radially displace under the conditions of bending and twisting of the cable; the wrapping layer is wrapped on the outer side of the lead, a filling rope is filled between the lead and the wrapping layer, and the wire core is fixed to form a circular section; the elastic shielding layer is woven on the outer side of the wrapping layer; and the flame-retardant heat-insulating layer and the outer sheath are sequentially arranged on the outer side of the elastic shielding layer.

Further, elasticity shielding layer includes first shielding net, elastic braid and the second shielding net that from inside to outside distributes in proper order, have crisscross cross node that distributes between first shielding net and the elastic braid, between elastic braid and the second shielding net, so that first shielding net and second shielding net are fixed elastic braid's both sides.

Further, the first shielding net and the second shielding net are distributed in a staggered mode on the outer side of the wrapping layer, and the comprehensive coverage rate of the first shielding net and the second shielding net is larger than 90%.

Furthermore, the diameter of the elastic wire core is the same as that of the insulating layer, and the elastic wire core and the filling rope can be made of flame-retardant rubber.

Furthermore, the elastic wire cores are twisted on each layer of the outer layer of the wire at the center, and the adjacent two layers of the elastic wire cores are tangent.

Furthermore, the elastic weaving layer is formed by weaving elastic polyester fibers.

Further, the flame-retardant heat-insulating layer can adopt a mica tape.

Compared with the prior art, the utility model has the advantages of:

through transposition elastic wire in the sinle silk, make the cable core whole under crooked or twist reverse the operating mode, can radially exert pressure for the elasticity sinle silk between the wire, make elasticity sinle silk shrink, for the wire provides the deformation space, can release the bending, twist reverse stress, and set up two-layer sparse shielding net relatively, set up the elastic braiding layer between two-layer shielding net, when guaranteeing the shielding effect, make the shielding layer more soft and easily crooked, change the inseparable difficult crooked torsional condition of braided shielding layer in the past.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of an exemplary embodiment of the present invention.

Fig. 2 is a schematic diagram of an exemplary embodiment of the elastic shielding layer hierarchy of the present invention.

Fig. 3 is a schematic diagram of an exemplary embodiment of a partial hierarchy of the present invention.

Fig. 4 is a schematic diagram of an exemplary embodiment of a portion of an elastic shield according to the present invention.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be understood that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways with any torsion resistant robot-specific cable, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

The utility model discloses aim at to the robot cable in frequent bending and twist reverse under the operating mode, sinle silk stress can obtain the release, improves resistant torsion and antifatigue, increase of service life. By the realization of this purpose, the utility model provides a resistant torsional robot special cable, through the transposition elastic wire in the sinle silk, especially the utility model discloses the sinle silk of taking wire 1 of insulating layer 2 and the mutual transposition of elasticity sinle silk 3 of configuration makes the cable core whole under crooked or twist reverse the operating mode, can radially exert pressure for elasticity sinle silk 3 between the wire 1, provides the deformation space for wire 1, can release crooked, torsional stress. Meanwhile, the cable in the industrial robot generally realizes the transmission of control signals under a complex industrial environment, and an elastic braided layer is arranged between two layers of relatively sparse shielding nets, so that the shielding layer is softer and more flexible while the shielding effect is ensured, and the condition that the braided shielding layer is tight and not easy to bend and twist in the past is changed.

Referring to fig. 1 and 3, the utility model provides a torsion-resistant special cable for robot of an exemplary embodiment, including a conductor 1, an insulating layer 2 and an elastic core 3.

Wherein, the sinle silk includes the wire 1 of the mutual transposition of multilayer, and the outside of wire 1 all coats and has insulating layer 2, and elasticity sinle silk 3 is central symmetry transposition in the sinle silk that 1 transposition of wire formed, makes wire 1 can radial displacement under the cable bending, twists reverse the condition. The outer diameter of elasticity sinle silk 3 is the same with insulating layer 2, and elasticity sinle silk 3 can adopt fire-retardant rubber rope, and wire 1 can adopt pure copper or tin-coated copper material, and insulating layer 2 can adopt the PVC material, and crowded package is in the outside of wire 1.

In the preferred embodiment, the wire 1 is provided with three layers in total from a cross-sectional perspective. The inlayer is a wire that is located robot private cable cross-section center, and the intermediate level sets up three interval distribution's wire 1 and elasticity sinle silk 3, and the outmost three wire in every interval sets up an elasticity sinle silk 3, and the contact of the elasticity sinle silk 3 in outmost elasticity sinle silk 3 and intermediate level makes the even clamp of elasticity sinle silk 3 between a plurality of wires 1.

So, use on industrial robot when this cable, the robot carries out actions such as spot welding, arc-welding, assembly and drives the cable frequently crooked and twist reverse down, can radially exert pressure to elasticity sinle silk 3 between the wire 1, makes elasticity sinle silk 3 shrink, for wire 1 provides the deformation space, can release crooked, torsional stress, extension cable's life.

Further, wrap 5 around the package in the outside of wire 1, and wire 1 with pack between 5 around the package and have the filling rope 4, form circular cross-section with the sinle silk admittedly, and lie in and all twist elasticity sinle silk 3 on 1 outer every layer of wire 1 of center conductor, and adjacent two-layer elasticity sinle silk 3 is tangent.

In a preferred embodiment, the filling rope 4 can also be made of a flame retardant rubber material, and the diameter of the filling rope 4 is smaller than that of the elastic core 3, so as to fill gaps between the wires 1 and 1, between the wires 1 and the elastic core 3, and between the wires 1 and the wrapping layer 5, so that the cable is more round.

Polyester tape can be used for the wrapping layer 5.

As shown in fig. 2 and 4, the elastic shielding layer 6 is woven outside the wrapping layer 5, and the elastic shielding layer 6 includes a first shielding mesh 61, an elastic braid 62 and a second shielding mesh 63 which are sequentially distributed from inside to outside, and cross nodes 64 which are distributed in a staggered manner are provided between the first shielding mesh 61 and the elastic braid 62 and between the elastic braid 62 and the second shielding mesh 63, so that the first shielding mesh 61 and the second shielding mesh 63 are fixed on both sides of the elastic braid 62.

In a preferred embodiment, the first shielding mesh 61 and the second shielding mesh 63 may both be woven copper meshes or tinned woven copper meshes, the first shielding mesh 61 and the second shielding mesh 63 are distributed in a staggered manner outside the wrapping layer 5, the comprehensive coverage rate of the first shielding mesh 61 and the second shielding mesh 63 is greater than 90%, and the elastic braid 62 is formed by weaving elastic polyester fibers.

So, the individual layer shielding net weaving density is more sparse, can make the shielding layer more soft easily crooked and twist reverse, sets up elastic braid 62 between two-layer shielding net, and the comprehensive coverage rate of first shielding net 61 and second shielding net 63 is greater than 90%, when guaranteeing the shielding effect, improves the compliance and the easy bending nature of whole cable, changes the inseparable difficult crooked torsional condition of shielding layer of weaving in the past.

Referring to fig. 1 and 2, the flame-retardant heat-insulating layer 7 wraps the outer side of the elastic shielding layer 6, and the outer sheath 8 is extruded on the outer side of the flame-retardant heat-insulating layer 7.

In the preferred embodiment, the flame-retardant heat-insulating layer 7 can be made of mica tapes which have excellent high-temperature resistance and combustion resistance, and the outer sheath 8 can be made of an oil-resistant insulating sheath which has the characteristic of long-term aging resistance, so that the cable can work for a long time in an industrial environment and the normal work of the cable core in the cable can be ensured.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims (8)

1. A torsion-resistant special cable for a robot, comprising:

the outer sides of the wires are coated with insulating layers;

the elastic wire cores are centrally symmetrically stranded in the wire cores formed by stranding the wires, so that the wires can radially displace under the conditions of bending and twisting of the cable;

the wrapping layer is wrapped on the outer side of the lead, a filling rope is filled between the lead and the wrapping layer, and the wire core is fixed to form a circular section;

the elastic shielding layer is woven on the outer side of the wrapping layer;

and the flame-retardant heat-insulating layer and the outer sheath are sequentially arranged on the outer side of the elastic shielding layer.

2. The torsion-resistant robot-dedicated cable according to claim 1, wherein the elastic shielding layer comprises a first shielding mesh, an elastic braid and a second shielding mesh which are sequentially distributed from inside to outside, and cross nodes are alternately distributed between the first shielding mesh and the elastic braid and between the elastic braid and the second shielding mesh, so that the first shielding mesh and the second shielding mesh are fixed on both sides of the elastic braid.

3. The torsion-resistant special cable for the robot as claimed in claim 2, wherein the first shielding net and the second shielding net are distributed in a staggered manner outside the wrapping layer, and the combined coverage rate of the first shielding net and the second shielding net is greater than 90%.

4. The twist resistant robot-specific cable of claim 2, wherein the elastic braid is an elastic polyester fiber braid.

5. The torsion resistant robot-specific cable of claim 1, wherein the elastic wire core has the same diameter as the insulating layer.

6. The torsion-resistant special cable for the robot as claimed in claim 1, wherein the elastic wire core and the filling rope are made of flame-retardant rubber.

7. The torsion-resistant robot-dedicated cable according to claim 1, wherein the flame-retardant heat-insulating layer is made of mica tape.

8. The torsion-resistant special cable for the robot as claimed in any one of claims 1 to 7, wherein the conductors are provided with three layers, the innermost layer is a conductor located at the center of the cross section of the special cable for the robot, the middle layer is provided with three conductors distributed at intervals and elastic cores, the outermost layer is provided with one elastic core at every interval of the three conductors, and the outermost elastic core is in contact with the elastic core in the middle layer, so that the elastic cores are uniformly clamped among the conductors.

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