CN213459161U

CN213459161U - Torsion-resistant, high-strength and strong-wear-resistant cable for shielding type robot

Info

Publication number: CN213459161U
Application number: CN202022991950.9U
Authority: CN
Inventors: 南赞峰; 王小宝; 张志坤; 郑志; 沈佳龙; 李战龙
Original assignee: Shaanxi Chint Cable Co ltd
Current assignee: Shaanxi Chint Cable Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-06-15
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a resistant cable for shielding type robot that turns round, high strength, strong wear-resisting, include with a plurality of insulation core with the cable core that 6 ~ 8 pitch transposition formed, locate the filling core in cable core center and the cable core clearance, locate the outer shielding layer of cable core, locate the restrictive coating outside the shielding layer. The insulated wire core comprises a conductor core and an insulated layer, and the conductor core comprises an aramid fiber wire core and a double-layer copper wire braided layer arranged outside the aramid fiber wire core; the insulating layer ETFE is extruded outside the conductor core. When the utility model works, all pulling forces almost act on the aramid fiber wire core, the copper wire is less stressed, and the torsion resistance is better; the ETFE material ensures the electrical property of the robot cable; the cable is stranded at a pitch of 6-8, and the aramid fiber core rope is filled, so that the flexibility and the tensile strength of the cable can be improved; the cable core is longitudinally wrapped with the aluminum-plastic composite tape layer and the tinned copper wire braided layer, so that the external signal interference resistance of the cable can be improved; the polyurethane sheath layer has good wear resistance, can prolong the service life of the cable and reduce the cost.

Description

Torsion-resistant, high-strength and strong-wear-resistant cable for shielding type robot

Technical Field

The utility model belongs to the technical field of the cable technique and specifically relates to a resistant cable for shielding type robot that turns round, high strength, strong wear-resisting.

Background

With the industrial scale of industrial robots, it is increasingly obvious that robots replace labor. At present, the market scale of the global robot is continuously enlarged, the market speed of industrial and special robots is stably increased, and the speed of service robots is remarkably increased. In 2020, the global robot market is expected to reach 232 billion dollars, and the average growth rate in 2012 and 2019 is close to 17%. Among them, industrial robots $ 147 million, service robots $ 29 million, and specialty robots $ 56 million. In the face of the increasingly developed machine industry, along with the increasing shortage of matched products, the robot cable is one of the types, and the cable used by the robot is used for enabling the robot to have better functions of transmitting power, signals and the like; since many cables used for robots have come into import in the early days, and germany and japan are in large numbers, many domestic enterprises have developed cables for robots in recent years. The cable matched with the robot meets the requirements of strong transmission signals, torsion resistance, wear resistance, long service life and the like, and the traditional robot cable is easy to break and has short service life in the process of moving and bending back and forth for a long time.

Also have the report of some cables that are used for the robot specially among the prior art, like application number 200920235278.1's utility model in disclose a shielding type distortion resistant cable for robot, cable core more than two-layer including the conductor constitution of crowded package insulating layer, with separating around the band between each layer cable core, be equipped with the rubber filling core that contains aramid filament in the centre layer of cable core, the cable core overcoat is equipped with around the band, has the shielding layer winding around the band outward, is equipped with the inner sheath outside the shielding layer, has woven the distortion resistant layer outside the inner sheath, is equipped with the oversheath outside the distortion resistant layer. The utility model is suitable for the occasions where high-frequency bending and torsion exist simultaneously, such as power transmission and control signal transmission of welding robots and manipulators, and is also suitable for connecting a rotary or lifting workbench, and has good flexibility and tensile property; however, the design of the multilayer cable core and the multilayer protective layer leads to the defects of complex structure, high production cost, insufficient flexibility and torsion resistance in use and the like of the cable.

Disclosure of Invention

To the defect that exists among the prior art, the utility model aims at providing a resistant turn round, high strength, strong wear-resisting shielding type cable for robot.

The utility model provides a technical scheme that technical problem adopted is: the utility model provides a resistant cable for shielding type robot that turns round, high strength, strong wear-resisting, the cable includes cable core that forms with less pitch transposition with a plurality of insulation core, locates fill core in cable core center and the cable core clearance, locate the outer shielding layer of cable core, locate the restrictive coating outside the shielding layer.

Furthermore, the insulated wire core comprises a conductor core and an insulated layer, the conductor core comprises an aramid fiber wire core and a copper wire braided layer arranged outside the aramid fiber wire core, and the copper wire braided layer is braided in a double-layer mode; the insulating layer is extruded outside the conductor core and made of ETFE materials.

Further, the insulated wire cores are stranded at a pitch of 6-8.

Further, the filling core is made of aramid fiber materials; the filling core comprises a filling reinforcing core arranged at the center of the cable core and a core rope arranged in the gap of the cable core, and the core rope is formed by twisting aramid fibers.

Further, the shielding layer comprises an aluminum-plastic composite belt layer and a tinned copper wire braided layer, and the braiding density of the tinned copper wire braided layer is not lower than 90%.

Furthermore, the sheath layer is extruded outside the shielding layer and is made of a polyurethane material.

The utility model has the advantages that: compared with the prior art, the utility model provides a cable for robot mainly has following several advantage:

1) the utility model weaves thin oxygen-free annealed copper wires on the aramid fiber wire core, the tensile strength of the aramid fiber wire core is far greater than that of the copper wires, and the elongation is smaller than that of the copper wires (the copper wires are about 23% generally); all pulling forces almost act on the aramid fiber wire core when the cable works, and the stress of the copper wire is small, so that the defect that the small-section conductor of the robot cable is prone to core breakage is overcome, and the torsion resistance is improved.

2) The utility model discloses an insulating layer in the insulation core adopts the thin wall of import ETFE to extrude in an insulating way, and the ETFE material has stronger tensile strength and percentage elongation to possess very high insulation resistance performance, guaranteed the electrical property of robot cable.

3) The utility model discloses during the cable core stranding of cable to pitch transposition of 6 ~ 8 to fill aramid fiber silk core rope, greatly increased the compliance and the pull resistance of cable.

4) The utility model discloses a cable core is indulged outward and is wrapped one deck plastic-aluminum composite belt layer, weaves one deck tinned copper wire weaving layer again, and it weaves density and reaches more than 90%, has improved the anti external signal interference of robot cable, better acceptance computer instruction.

5) The sheath layer of the cable adopts imported polyurethane material, and is extruded outside the shielding layer under the action of larger pressure, so that the cable is combined with the cable core more tightly; the polyurethane material has high tensile strength and good wear resistance, greatly prolongs the service life of the cable, and reduces the cost.

Drawings

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

Wherein, 1-copper wire braided layer; 2-aramid filament core; 3-an insulating layer; 4-a core rope; 5-a sheath layer; 6-aluminum-plastic composite belt layer; 7-tinned copper wire braid; 8-filling the reinforcing core.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments for explaining the content of the present invention.

Example 1

As shown in figure 1, the anti-torsion, high-strength and strong-wear-resistance cable for the shielding type robot is mainly used for a robot arm body, moves along with the robot arm and provides power or signal transmission for the robot body. The cable includes with the cable core that a plurality of insulation core formed with the pitch transposition of 6, locate filling core in cable core center and the cable core clearance, locate the outer shielding layer of cable core, locate the restrictive coating 5 outside the shielding layer.

The insulated wire core comprises a conductor core and an insulating layer 3, the conductor core comprises an aramid fiber wire core 2 and a copper wire woven layer 1 arranged outside the aramid fiber wire core 2, and the copper wire woven layer 1 is woven in a double-layer mode. Fine oxygen-free annealed copper wires are woven on the aramid fiber wire core 2, the tensile strength of the aramid fiber wire core 2 is far greater than that of the copper wires, and the elongation of the aramid fiber wire core 2 is smaller than that of the copper wires (the copper wires are about 23% generally); all pulling forces almost act on the aramid fiber wire core 2 when the cable works, and the stress of the copper wire is small, so that the defect that the small-section conductor of the robot cable is prone to core breakage is overcome, and the torsion resistance is improved.

The insulating layer 3 is extruded outside the conductor core, and the insulating layer 3 is made of an ETFE material. The ETFE material has stronger tensile strength and elongation, and has very high insulation resistance performance, thereby ensuring the electrical performance of the robot cable.

The filling core is made of aramid fiber material; the filling core comprises a filling reinforcing core 8 arranged at the center of the cable core and a core rope 4 arranged in the gap of the cable core, wherein the core rope 4 is formed by twisting aramid fibers, so that the flexibility and the tensile resistance of the cable are greatly increased.

The shielding layer comprises an aluminum-plastic composite belt layer 6 and a tinned copper wire braid layer 7, the braiding density of the tinned copper wire braid layer 7 is not lower than 90%, the external signal interference resistance of the robot cable is improved, and a computer instruction is received better.

The sheath layer 5 is extruded outside the shielding layer, the sheath layer 5 is made of polyurethane materials and is extruded outside the shielding layer under the action of larger pressure, so that the sheath layer and the cable core are combined more tightly; the polyurethane material has high tensile strength and good wear resistance, greatly prolongs the service life of the cable, and reduces the cost.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a resistant cable for shielding type robot of turning round, high strength, strong wear-resisting which characterized in that: the cable includes with the cable core that a plurality of insulation core formed with less pitch transposition, locate filling core in cable core center and the cable core clearance, locate the outer shielding layer of cable core, locate the restrictive coating outside the shielding layer.

2. The torsion-resistant, high-strength and strong-abrasion-resistant shielding type cable for robot as claimed in claim 1, wherein: the insulated wire core comprises a conductor core and an insulated layer, the conductor core comprises an aramid fiber wire core and a copper wire braided layer arranged outside the aramid fiber wire core, and the copper wire braided layer is braided in a double-layer mode; the insulating layer is extruded outside the conductor core and made of ETFE materials.

3. The torsion-resistant, high-strength, strong-abrasion-resistant cable for a shielding type robot according to claim 1 or 2, characterized in that: the insulated wire cores are twisted at a pitch of 6-8.

4. The torsion-resistant, high-strength and strong-abrasion-resistant shielding type cable for robot as claimed in claim 1, wherein: the filling core is made of aramid fiber material; the filling core comprises a filling reinforcing core arranged at the center of the cable core and a core rope arranged in the gap of the cable core, and the core rope is formed by twisting aramid fibers.

5. The torsion-resistant, high-strength and strong-abrasion-resistant shielding type cable for robot as claimed in claim 1, wherein: the shielding layer comprises an aluminum-plastic composite belt layer and a tinned copper wire braid layer, and the braiding density of the tinned copper wire braid layer is not lower than 90%.

6. The torsion-resistant, high-strength and strong-abrasion-resistant shielding type cable for robot as claimed in claim 1, wherein: the sheath layer is extruded outside the shielding layer and is made of polyurethane material.