Flexible cable and industrial robot
By designing the cable core structure and material combination of flexible cables, the bending and torsion resistance of cables in industrial robot vision systems is solved, improving the stability and strength of the cable, and reducing the risk of breakage.
Patent Information
- Application Number
- CN202420830870.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing cables used in industrial robot vision systems have poor bending and torsion resistance, which are prone to breaking during use, affecting the smooth progress of production.
A flexible cable is designed, including a cable core and an outer sheath. The cable core consists of a reinforcement, an inner wire and an outer wire. The limit part of the reinforcement extends spirally along the length of the pipe body. The inner wire and the outer wire are twisted between the limit part. The outer sheath is covered outside the cable core, and a variety of materials and structural designs are combined to improve the stability and strength of the cable.
It improves the bending and torsion resistance of the cable, ensures the stability of the conductor position, enhances the overall structural strength and tensile and compressive ability of the cable, and reduces the risk of breakage.
Smart Images
Figure CN223155696U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a flexible cable and an industrial robot. Background Art
[0002] An industrial robot is a multi-joint manipulator or a multi-degree-of-freedom machine device widely used in the industrial field. It has a high degree of automation and can rely on its own power source and control ability to achieve various industrial processing and manufacturing functions. For an industrial robot, the vision system is equivalent to its eyes. The main function of the vision system is to scan an object to obtain the three-dimensional information of the object, and through the accurate positioning of the algorithm, the production process can be controlled more accurately and flexibly.
[0003] However, since an industrial robot often performs multi-degree-of-freedom movements, the cable connected to the vision system will be bent and twisted. The existing cables for the vision system of industrial robots have poor bending resistance and torsional resistance, and are prone to breakage during use, affecting the smooth progress of production. Summary of the Utility Model
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the existing cables for the vision system of industrial robots have poor bending resistance and torsional resistance, are prone to breakage during use, and affect the smooth progress of production.
[0005] To solve the above technical problem, the utility model provides a flexible cable, including
[0006] a cable core, the cable core includes a reinforcing member, an inner layer conductor and an outer layer conductor. The reinforcing member includes a tube body. A plurality of limiting portions are arranged on the circumferential surface of the tube body at intervals along its circumferential direction, and the limiting portions all extend spirally along the length direction of the tube body. A plurality of inner layer conductors are provided and are twisted with each other in the tube body. A plurality of outer layer conductors are arranged around the tube body, and the plurality of outer layer conductors are twisted on the tube body and are respectively located between two adjacent limiting portions;
[0007] an outer sheath, and the outer sheath is coated outside the cable core.
[0008] In an embodiment of the utility model, arc grooves extending in the length direction thereof are symmetrically arranged on both sides of each limiting portion.
[0009] In an embodiment of the utility model, a plurality of through holes arranged in an array are provided on the tube body.
[0010] In an embodiment of the present utility model, each of the inner-layer wires and the outer-layer wires includes a plurality of conductors. An insulating layer is coated outside each of the plurality of conductors, and they are twisted together to form a wire core, and an aluminum foil layer is coated outside the wire core.
[0011] In an embodiment of the present utility model, the insulating layer is made of foamed PEP material.
[0012] In an embodiment of the present utility model, cotton yarn is filled between the inner-layer wires and the outer-layer wires.
[0013] In an embodiment of the present utility model, a metal braided layer is provided between the cable core and the outer sheath.
[0014] In an embodiment of the present utility model, an aluminum foil shielding layer is provided between the metal braided layer and the cable core.
[0015] In an embodiment of the present utility model, multiple ground wires are further provided between the outer-layer wires.
[0016] An industrial robot includes the flexible cable as described in any one of the above.
[0017] The above technical solution of the present utility model has the following advantages compared with the prior art:
[0018] A flexible cable and an industrial robot according to the present utility model include a cable core and an outer sheath. The cable core includes a reinforcing member, inner-layer wires and outer-layer wires. The reinforcing member includes a tube body, and a plurality of limiting portions are provided on the circumferential surface of the tube body at intervals along its circumferential direction. The limiting portions all extend spirally along the length direction of the tube body. A plurality of inner-layer wires are provided and twisted together in the tube body. A plurality of outer-layer wires are provided around the tube body, and the plurality of outer-layer wires are twisted on the tube body and are respectively located between two adjacent limiting portions; the outer sheath is coated outside the cable core. By providing a reinforcing member with a unique structure, the flexible cable of the present utility model can not only improve the tensile and compressive strength of the overall cable, but also the reinforcing member can play a role in limiting each wire inside the cable. During the bending or twisting process of the cable, the positions of the wires will not shift greatly, which can ensure the stability and strength of the overall structure of the cable, thereby improving the bending resistance and torsion resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to the specific embodiments of the present utility model in conjunction with the drawings, where
[0020] Figure 1 is a schematic diagram of the overall structure of the flexible cable of the preferred embodiment of the present utility model;
[0021] Figure 2 It is a schematic structural diagram of the cable core of the flexible cable according to the preferred embodiment of the present utility model;
[0022] Figure 3 It is a schematic structural diagram of the strengthening member of the flexible cable according to the preferred embodiment of the present utility model.
[0023] Explanation of the reference numerals in the specification drawings: 1. Cable core; 11. Strengthening member; 111. Pipe body; 112. Limiting part; 113. Arc groove; 12. Inner layer conductor; 13. Outer layer conductor; 131. Conductor; 132. Insulating layer; 133. Aluminum foil layer; 14. Cotton yarn; 15. Ground wire; 2. Outer sheath; 3. Metal braided layer; 4. Aluminum foil shielding layer; 5. Polyester tape layer. Specific embodiments
[0024] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.
[0025] Embodiment 1
[0026] Referring to Figure 1 , Figure 2 and Figure 3 as shown, a flexible cable of the present utility model includes
[0027] A cable core 1, the cable core 1 includes a strengthening member 11, an inner layer conductor 12 and an outer layer conductor 13. The strengthening member 11 includes a pipe body 111. A plurality of limiting parts 112 are arranged on the circumferential surface of the pipe body 111 at intervals along its circumferential direction. The limiting parts 112 all extend spirally along the length direction of the pipe body 111. A plurality of inner layer conductors 12 are arranged and are twisted with each other in the pipe body 111. A plurality of outer layer conductors 13 are arranged around the pipe body 111. The plurality of outer layer conductors 13 are twisted on the pipe body 111 and are respectively located between two adjacent limiting parts 112;
[0028] An outer sheath 2, the outer sheath 2 is coated outside the cable core 1, and the outer sheath 2 is made of PVC polyvinyl chloride material.
[0029] Specifically, the inner layer conductor 12 is restricted in the pipe body 111, and the outer layer conductor 13 is restricted between two adjacent limiting parts 112; in this way, during the bending or twisting process of the cable, the strengthening member 11 can play a role in limiting each conductor inside the cable core 1, and the positions of the conductors will not deviate greatly, which can ensure the stability and strength of the overall structure of the cable, thereby improving the bending resistance and torsion resistance of the cable. At the same time, the strengthening member 11 itself also has a certain strength, which can further improve the tensile and compressive strength of the cable.
[0030] Furthermore, arc grooves 113 extending in the length direction thereof are symmetrically arranged on both sides of each limiting portion 112. It can be conceived that arranging the arc grooves 113 on the limiting portion 112 can increase the contact area between the limiting portion 112 and the outer layer of the wire 13, which is beneficial to the limiting portion 112 to limit the outer layer of the wire 13, and can make the structure inside the cable more stable, thereby improving the overall strength and bending resistance of the cable.
[0031] Furthermore, a plurality of through holes arranged in an array are provided on the pipe body 111. The through holes are beneficial to the heat dissipation of the inner layer of the wire 12, and can also improve the flexibility of the reinforcing member 11 itself. To a certain extent, it can improve the bending resistance and torsional resistance of the overall cable, and at the same time can also reduce the overall weight of the cable, which is beneficial to construction.
[0032] Furthermore, each inner layer of the wire 12 and the outer layer of the wire 13 each include a plurality of conductors 131. Insulation layers 132 are coated outside the plurality of conductors 131 and are twisted together to form a wire core, and an aluminum foil layer 133 is coated outside the wire core. The conductor 131 is selected as a Class 6 conductor of high-quality annealing, with a smooth surface, no oxidation and burrs.
[0033] Furthermore, the insulation layer 132 is made of foamed PEP material. Specifically, the foamed FEP material has the excellent characteristics of fluororesin, with low weight and good flexibility, which is beneficial to the bending resistance and torsional resistance of the overall cable; and has a low dielectric constant and dielectric loss factor, which can minimize the distortion during high-frequency signal transmission, and at the same time also has excellent low-smoke, flame-retardant and corrosion-resistant characteristics.
[0034] Furthermore, cotton yarns 14 are filled between the inner layer of the wire 12 and the outer layer of the wire 13. Specifically, filling the cotton yarns 14 in the gaps inside the cable core 1 is beneficial to the stability and strength of the overall cable structure, and the cotton yarns 14 have low weight and good flexibility, which can improve the bending resistance and torsional resistance of the cable.
[0035] Furthermore, a metal braid layer 3 is provided between the cable core 1 and the outer sheath 2. The metal braid layer 3 is woven from tinned copper wires, has a certain strength and good torsional resistance and bending resistance, and can play a shielding role.
[0036] Furthermore, an aluminum foil shielding layer 4 is provided between the metal braid layer 3 and the cable core 1.
[0037] Furthermore, a plurality of ground wires 15 are also provided between the outer layer of the wire 13. It can be conceived that the ground wires 15, the aluminum foil shielding layer 4 and the metal braid layer 3 can play a shielding role, which is beneficial to maintaining stable communication quality for the cable over a long communication distance.
[0038] Furthermore, a polyester tape layer 5 is also provided between the cable core 1 and the aluminum foil shielding layer 4.
[0039] Embodiment 2
[0040] The present utility model also discloses an industrial robot, including the flexible cable as in Embodiment 1. The flexible cable of the present utility model can be applied to various industrial robots.
[0041] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.
Claims
1. A flexible cable, characterized in that, Comprising: A cable core, the cable core includes a strengthening member, an inner layer conductor and an outer layer conductor, the strengthening member includes a tube body, a plurality of limiting portions are arranged on the circumferential surface of the tube body at intervals along its circumferential direction, the limiting portions all extend spirally along the length direction of the tube body, a plurality of the inner layer conductors are arranged and twisted with each other in the tube body, a plurality of the outer layer conductors are arranged around the tube body, and the plurality of outer layer conductors are twisted on the tube body and are respectively located between two adjacent limiting portions; An outer sheath, the outer sheath is coated outside the cable core.
2. The flexible cable according to claim 1, wherein: Arc grooves extending in its length direction are symmetrically arranged on both sides of each of the limiting portions.
3. The flexible cable according to claim 1, characterized in that: A plurality of through holes arranged in an array are provided on the tube body.
4. The flexible cable according to claim 1, wherein: Each of the inner layer conductors and the outer layer conductors includes a plurality of conductors, an insulating layer is coated outside each of the plurality of conductors and they are twisted with each other to form a wire core, and an aluminum foil layer is coated outside the wire core.
5. The flexible cable according to claim 4, wherein: The insulating layer uses a foamed PEP material.
6. The flexible cable according to claim 1, wherein: Cotton yarn is filled between the inner layer conductors and the outer layer conductors.
7. The flexible cable according to claim 1, characterized in that: A metal braided layer is arranged between the cable core and the outer sheath.
8. The flexible cable according to claim 7, characterized in that: An aluminum foil shielding layer is arranged between the metal braided layer and the cable core.
9. The flexible cable according to claim 1, wherein: A plurality of ground wires are further arranged between the outer layer conductors.
10. An industrial robot, characterized in that: Including the flexible cable according to any one of claims 1-9.