Super-flexible robot demonstrator cable

Abstract

The utility model discloses a super-flexible robot demonstrator cable. The super-flexible robot demonstrator cable comprises a cable core and an outer wrapping layer which are sequentially arranged from inside to outside. The cable core comprises a communication signal line, a first power line and a second power line. The communication signal line is eccentrically arranged relative to the center of the cable; an eccentric cavity of the cable core is formed between the communication signal line and the outer cladding, and the first power line and the second power line are arranged in the eccentric cavity; the first power line is of a twisted-pair wire core structure, and the first power line and the communication signal line are located on the same diameter line. The multiple second power lines are arranged on the two sides of the first power line respectively.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, specifically relating to an ultra-flexible robot teach pendant cable. Background Technology

[0002] The robot teach pendant cable is a cable connecting the teach pendant and the robot controller, used to transmit control signals and data. The teach pendant is connected to the control cabinet via the cable, allowing operators to perform operations on the robot such as inching feed, program creation, program testing and execution, operation execution, and attitude confirmation.

[0003] With the widespread application of robotics technology across various fields, the demands for flexibility in robot systems are increasing. Especially in industrial automation and intelligent manufacturing, robots need to perform precise operations in complex environments. This requires teach pendant cables to possess excellent flexibility to adapt to the flexible operation of the robot teach pendant in different spaces. Furthermore, the cables are constantly subjected to friction and stretching during robot movement, therefore requiring excellent wear resistance. The cables also need to withstand frequent bending and twisting without damage. Simultaneously, the cables must ensure stable power and signal transmission to guarantee the normal operation of the robot.

[0004] Existing robot teach pendant cables are inadequate in terms of mechanical properties (such as flexibility), abrasion resistance, and signal interference, and cannot meet the high requirements for cable use. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide an ultra-flexible robot teach pendant cable. This cable possesses superior flexibility, wear resistance, bending resistance, and signal transmission stability, thus meeting high usage requirements.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] A highly flexible robot teach pendant cable includes a cable core and an outer sheath arranged sequentially from the inside out. The cable core includes a communication signal line, a first power line, and a second power line. The communication signal line is eccentrically positioned relative to the center of the cable. An eccentric cavity is formed between the communication signal line and the outer sheath of the cable core, and the first and second power lines are disposed within this eccentric cavity. The first power line has a twisted pair core structure and is on the same diameter as the communication signal line. There are multiple second power lines, which are respectively disposed on both sides of the first power line.

[0008] Furthermore, the communication signal line includes, from the outside to the inside, a signal line sheath, a signal line shielding layer, a signal line protective strip layer, and a signal line core.

[0009] Furthermore, the signal line core includes multiple sub-cores, each of which is a twisted pair core, comprising two insulated single wires twisted together, each insulated single wire including a conductor and an insulating layer wrapped around the conductor.

[0010] Furthermore, the first power line includes two twisted power wires, each power wire including a conductor and an insulating layer wrapped around the conductor.

[0011] Furthermore, the second power line includes a conductor and an insulating layer wrapped around the conductor.

[0012] Furthermore, the conductors in the sub-cores of the signal line core, the first power line, and the second power line are all silver-plated copper alloy wires.

[0013] Furthermore, a filler is provided at the center of the communication signal line, and a filler is also provided in the eccentric cavity of the cable core.

[0014] Furthermore, the filler is made of Kevlar fiber and FEP resin composite.

[0015] Furthermore, the outer sheath includes a first outer protective layer, an outer braided shielding layer, a second outer protective layer, and an outer sheath.

[0016] Furthermore, the signal line protection layer, the first outer protection layer, and the second outer protection layer are all made of PTFE tape.

[0017] The beneficial effects of this utility model are:

[0018] In this invention, the communication signal line is eccentrically positioned relative to the center of the cable. This eccentric design reduces external electromagnetic interference, optimizes the electromagnetic field distribution during signal transmission, reduces signal attenuation, and improves signal transmission efficiency and stability.

[0019] The eccentric design of the communication signal line in this invention can reduce stress concentration during bending, improve bending resistance, and enhance the mechanical strength of the cable.

[0020] In addition, the eccentric design of the communication signal line makes it easier to identify the direction during installation, which reduces incorrect connections to some extent.

[0021] The first power line in this invention has a twisted pair core structure, which is on the same diameter as the communication signal line. This design, through the combination of the twisted pair structure and the eccentric communication signal line, not only improves the stability of signal transmission, but also effectively disperses the stress of the cable during bending and twisting, thereby improving the cable's resistance to bending and twisting.

[0022] This invention includes a first power line and a second power line, which can provide independent power to devices with different voltage requirements, reduce mutual interference, and improve the stability of signal transmission. If a power supply fails, it can be replaced or repaired separately without affecting the normal operation of the other power supply, thus reducing maintenance costs and downtime. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the ultra-flexible robot teach pendant cable of this utility model.

[0024] In the diagram, 1: Communication signal line, 11: Signal line sheath, 12: Signal line shielding layer, 13: Signal line protective strip layer, 14: Signal line core, 141: Sub-core, 1411: Insulated single wire; 2: First power line, 21: Power single wire; 3: Second power line; 4: Filler; 5: First outer protective strip layer; 6: Outer braided shielding layer; 7: Second outer protective strip layer; 8: Outer sheath; 9: Eccentric cavity. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figure 1 As shown, an ultra-flexible robot teach pendant cable includes a cable core and an outer sheath arranged sequentially from the inside out. The cable core includes a communication signal line 1, a first power line 2, and a second power line 3. The communication signal line 1 is eccentrically positioned relative to the center of the cable. An eccentric cavity 9 is formed between the communication signal line 1 and the outer sheath, and the first power line 2 and the second power line 3 are disposed in the eccentric cavity 9. The first power line 2 has a twisted pair core structure and is on the same diameter as the communication signal line 1. There are multiple second power lines 3, which are respectively disposed on both sides of the first power line 2.

[0027] The communication signal line 1 includes, from the outside to the inside, a signal line sheath 11, a signal line shielding layer 12, a signal line protective strip layer 13, and a signal line core 14. The signal line sheath 11 is made of highly flexible TPU sheath material, which improves bending resistance, effectively prevents moisture and humidity intrusion, protects the internal core from moisture, ensures insulation, and protects the internal insulation layer from mechanical damage such as tearing and squeezing, ensuring the integrity and service life of the core. It also prevents chemical corrosion of the internal core insulation layer. The signal line shielding layer 12 is preferably a braided shielding layer made of high-coverage tinned copper mesh, which improves the core's anti-interference capability and signal transmission quality. The signal line protective strip layer 13 is made of PTFE tape. PTFE tape provides: superior chemical stability, with extremely high resistance to most chemicals, including strong acids, strong alkalis, and organic solvents; superior heat resistance, maintaining its performance over a wide temperature range; a low coefficient of friction, improving wear resistance; and superior electrical insulation, suitable for high-frequency applications.

[0028] The signal cable core 14 includes multiple sub-cores 141, each of which is a twisted pair core comprising two insulated single wires 1411 twisted together. Each insulated single wire 1411 includes a conductor and an insulating layer wrapped around the conductor. This sub-core 141 employs a short-pitch twisted pair structure, which not only improves signal transmission stability but also effectively disperses stress during bending and torsion, thereby enhancing the cable's resistance to bending and twisting. The conductor uses 0.05mm ultra-fine stranded silver-plated copper alloy wire, offering better conductivity, wear resistance, corrosion resistance, and excellent mechanical properties. The insulation layer uses highly flexible FEP insulation material, enhancing the core's flexibility and wear resistance.

[0029] In this invention, the communication signal line 1 is offset from the center of the cable. This offset design reduces external electromagnetic interference, optimizes the electromagnetic field distribution during signal transmission, reduces signal attenuation, and improves signal transmission efficiency and stability. Furthermore, the offset design reduces stress concentration during bending, improves bending resistance, and enhances the cable's mechanical strength. Additionally, the offset design makes orientation easier to identify during installation, reducing the risk of incorrect connections.

[0030] The first power line 2 includes two twisted power wires 21, each power wire 21 including a conductor and an insulating layer wrapped around the conductor. The first power line 2 has a twisted pair core structure, which is on the same diameter as the communication signal line 1. This design, through the combination of the twisted structure and the eccentric communication signal line, can not only further improve the signal transmission stability, but also effectively disperse the stress of the cable during bending and twisting, thereby improving the cable's resistance to bending and twisting.

[0031] The second power line 3 includes a conductor and an insulating layer wrapped around the conductor.

[0032] The conductors in both the first power cord 2 and the second power cord 3 are made of 0.05mm ultra-fine stranded silver-plated copper alloy wire, which gives the conductor better conductivity, wear resistance, corrosion resistance, and excellent mechanical properties. The insulation layer in both the first power cord 2 and the second power cord 3 is made of highly flexible FEP insulation material, which enhances the flexibility and wear resistance of the power cord.

[0033] This utility model includes a first power line 2 and a second power line 3, which can provide independent power supplies for devices with different voltage requirements, reduce mutual interference, and improve the stability of signal transmission. If a power supply fails, it can be replaced or repaired separately without affecting the normal operation of the other power supply, thus reducing maintenance costs and downtime.

[0034] A filler 4 is also provided at the center of the communication signal line 1, and the eccentric cavity 9 of the cable core is also filled with filler 4. The filler 4 is used to fill the gaps in the cable core; the filler 4 is made of Kevlar fiber and FEP resin composite. The Kevlar fiber and FEP resin composite can give the filler high strength, light weight, high temperature resistance, corrosion resistance and wear resistance, which not only realizes the stability of the cable structure, but also enhances the cable's mechanical properties such as tensile, pulling and dragging resistance.

[0035] The outer sheath comprises a first outer protective layer 5, an outer braided shielding layer 6, a second outer protective layer 7, and an outer sheath 8. Both the first and second outer protective layers 5 and 7 are made of PTFE tape. The outer braided shielding layer 6 is made of high-coverage tin-plated copper mesh, which improves the overall cable's anti-interference capability and signal transmission quality. The outer sheath 8 is made of highly flexible TPU sheath material, which protects the cable from damage by the external environment, protects the internal structure from mechanical damage, and improves its bending and abrasion resistance.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A super flexible robot teach pendant cable, comprising: The cable comprises a cable core and an outer cladding arranged in sequence from inside to outside; the cable core comprises a communication signal line, a first power supply line and a second power supply line; the communication signal line is arranged eccentrically relative to the center of the cable; an eccentric cavity of the cable core is formed between the communication signal line and the outer cladding, and the first power supply line and the second power supply line are arranged in the eccentric cavity; the first power supply line is a twisted pair line core structure, which is on the same radial line as the communication signal line; the second power supply line is a plurality of lines, which are arranged on both sides of the first power supply line respectively.

2. The ultra flexible robotic teach pendant cable of claim 1, wherein, The communication signal line comprises a signal line sheath, a signal line shielding layer, a signal line protection tape layer and a signal line core arranged in sequence from outside to inside.

3. The ultra flexible robotic teach pendant cable of claim 2, wherein, The signal line core comprises a plurality of sub-line cores, each of which is a twisted pair line core comprising two insulated single wires twisted together, and each insulated single wire comprises a conductor and an insulation layer wrapped outside the conductor.

4. The ultra flexible robotic teach pendant cable of claim 3, wherein, The first power supply line comprises two power supply single wires twisted together, and each power supply single wire comprises a conductor and an insulation layer wrapped outside the conductor.

5. The ultra flexible robotic teach pendant cable of claim 4, wherein, The second power supply line comprises a conductor and an insulation layer wrapped outside the conductor.

6. The ultra flexible robotic teach pendant cable of claim 5, wherein, The conductors in the sub-line cores of the signal line core, the first power supply line and the second power supply line are all silver-plated copper alloy wires.

7. The ultra flexible robotic teach pendant cable of claim 2, wherein, A filler is arranged at the center of the communication signal line, and the eccentric cavity of the cable core is also filled with a filler.

8. The ultra flexible robotic teach pendant cable of claim 7, wherein, The filler is composed of Kevlar fiber and FEP resin.

9. The ultra flexible robotic teach pendant cable of claim 2, wherein, The outer cladding comprises a first outer protection tape layer, an outer woven shielding layer, a second outer protection tape layer and an outer sheath.

10. The ultra flexible robotic teach pendant cable of claim 9, wherein, The signal line protection tape layer, the first outer protection tape layer and the second outer protection tape layer are all wrapped with PTFE tape.

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