Robot cable

Abstract

The utility model discloses a robot cable, through a composite shielding structure composed of a power line shielding layer, a signal line shielding layer and an isolation shielding layer, a high-frequency electric field of a power line can be shielded, a low-frequency electromagnetic field can be absorbed, the influence of the power line on the signal line can be greatly reduced, and the problems in the prior art can be solved. The robot cable comprises a cable core and an outer sheath, and the cable core comprises a power line, a signal line and a composite shielding structure between the power line and the signal line. The composite shielding structure comprises a power line shielding layer arranged on the power line, a signal line shielding layer arranged on the signal line and an isolation shielding layer arranged between the power line shielding layer and the signal line shielding layer; the power line shielding layer is an aluminum foil wrapping layer wrapping the power line, the signal line shielding layer is a woven silver-plated copper wire layer woven on the signal line, and the isolation shielding layer is a ferrite silica gel filling layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cable field especially relates to a robot cable. BACKGROUND

[0002] Cable is used to transmit electric (magnetic) energy, information and realizes electromagnetic energy conversion wire product.

[0003] Now more and more places, for example, factory starts using a large number of robots, to carry out the automation intelligent production. The cable used on the robot can be called robot cable, and the robot cable includes power line and signal line, wherein the power line bears the electric energy transmission function on the robot, and the signal line bears the signal transmission function. In the prior art, the power line and the signal line are not provided with a shielding layer or only have a single shielding layer, which leads to the signal line being interfered by the power line, thereby causing the control signal of the robot to generate error code. According to statistics, if the power line and the signal line are not provided with a shielding layer, the robot cable is interfered by the power line and causes the error rate of the control signal to be greater than or equal to 1 ‰.

[0004] Therefore, in view of the above situation, how to improve the existing cable to solve the above-mentioned shortcomings becomes an important technical problem to be solved by the person skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a kind of robot cables, by power line shielding layer, signal line shielding layer and isolation shielding layer composite shielding structure, high-frequency electric field of power line can be shielded, absorption low-frequency electromagnetic field, greatly reduce the influence of power line to signal line, can solve the problems existing in prior art.

[0006] The robot cable provided by the utility model, comprising cable core and outer sheath, wherein the cable core comprises power line, signal line and composite shielding structure between the two;

[0007] The composite shielding structure comprises a power line shielding layer disposed on the power line, a signal line shielding layer disposed on the signal line, and an isolation shielding layer disposed between the power line shielding layer and the signal line shielding layer.

[0008] The power line shielding layer is an aluminum foil wrapping layer wrapped around the power line, the signal line shielding layer is a braided silver-plated copper wire layer braided on the signal line, and the isolation shielding layer is a ferrite silicone filling layer.

[0009] Preferably,

[0010] The aluminum foil wrapping layer is further provided with a tinned copper wire braiding layer outside.

[0011] Preferably,

[0012] A whole outer layer shielding is further provided between the cable core and the outer sheath.

[0013] The whole outer layer shield covers the cable core as a whole.

[0014] Preferably,

[0015] The whole outer layer shield is provided with a longitudinal copper tape layer on the side close to the cable core and a braided silver-plated aramid fiber layer on the side close to the outer sheath.

[0016] Preferably,

[0017] The power line is composed of 19 strands of tin-plated copper wires twisted leftward, and is covered with a ceramicized silicone rubber insulating layer on the outside;

[0018] The signal line is composed of 32 strands of copper alloy wires twisted rightward, and is covered with a three-layer co-extruded TPE / PTFE / TPE insulating layer on the outside.

[0019] Preferably,

[0020] The diameter of the tin-plated copper wire in the power line is 0.1 mm, and the pitch ratio is 8;

[0021] The diameter of the copper alloy wire in the signal line is 0.05 mm, and the pitch ratio is 10.

[0022] Preferably,

[0023] The outer sheath is made of polyurethane material filled with Kevlar fiber bundles inside.

[0024] Preferably,

[0025] The outer surface of the outer sheath is provided with a spiral groove.

[0026] Preferably,

[0027] The outer sheath is composed of TPE and aramid fiber, and the content of aramid fiber is not less than 15wt%.

[0028] Preferably,

[0029] The outer surface of the outer sheath is provided with a laser-etched corrugated structure;

[0030] The depth of the corrugated structure is 0.25-0.35 mm, and the bending radius is ≤5D, where D is the outer diameter of the robot cable.

[0031] The utility model discloses a robot cable, including cable core and outer sheath, wherein the cable core includes power line, signal line and the composite shielding structure between the two, the composite shielding structure includes the power line shielding layer of setting in power line, the signal line shielding layer of setting in signal line and the isolation shielding layer of setting between power line shielding layer and signal line shielding layer, power line shielding layer is the aluminium foil wrapping layer of wrapping in power line, signal line shielding layer is the braided silver plated copper wire layer of weaving on signal line, and the isolation shielding layer is ferrite silica gel filling layer. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according of these drawings without creative labor.

[0033] Figure 1 It is the structure schematic diagram of the utility model robot cable embodiment;

[0034] Figure 2 It is the structure schematic diagram of the utility model robot cable embodiment and contains whole outer layer shielding 14. CONCRETE EMBODIMENT

[0035] The utility model discloses a robot cable, through the composite shielding structure 13 of power line shielding layer 131, signal line shielding layer 132 and isolation shielding layer 133, can shield the high frequency electric field of power line 11, absorb low frequency electromagnetic field, greatly reduce the influence of power line 11 to signal line 12, can solve the problems of prior art.

[0036] The technical scheme in the embodiments of the utility model will be clearly and detailedly described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the range of protection of the utility model. Please refer to Figure 1 And Figure 2 The utility model embodiment provides a robot cable, including cable core 1 and outer sheath 2, wherein the cable core 1 includes power line 11, signal line 12 and the composite shielding structure 13 between the two,

[0037] The composite shielding structure 13 comprises a power line shielding layer 131 arranged on the power line 11, a signal line shielding layer 132 arranged on the signal line 12, and an isolation shielding layer 133 arranged between the power line shielding layer 131 and the signal line shielding layer 132.

[0038] The power line shielding layer 131 is an aluminum foil wrapping layer wrapped around the power line 11, the signal line shielding layer 132 is a braided silver-plated copper wire layer braided on the signal line 12, and the isolation shielding layer 133 is a ferrite silicone filling layer.

[0039] In the utility model, the aluminum foil wrapping layer wrapped around the power line 11 can shield the influence of high-frequency electric field as much as possible, the silver-plated copper wire layer braided on the signal line 12 can shield wideband radiation as much as possible, and the ferrite silicone filling layer can absorb low-frequency magnetic field; by absorbing or shielding high-frequency electric field, wideband radiation and low-frequency magnetic field, the crosstalk generated by the power line 11 on the signal line 12 during power transmission can be greatly reduced, and the demand of industrial robot EtherCAT, Profinet and other high-speed buses can be met.

[0040] Preferably,

[0041] The aluminum foil wrapping layer is further provided with a tinned copper wire braided layer outside.

[0042] Preferably,

[0043] The cable core 1 and the outer sheath 2 are further provided with a whole outer shielding layer 14.

[0044] The whole outer shielding layer 14 wholly covers the cable core 1.

[0045] Preferably,

[0046] The whole outer shielding layer 14 is provided with a longitudinal copper tape layer on the side close to the cable core 1 and a braided silver-plated aramid layer on the side close to the outer sheath 2.

[0047] It should be noted that the setting of the whole outer shielding layer 14 can further enhance the shielding effect between the power line 11 and the signal line 12, including the reflection of high-frequency noise by the braided silver-plated aramid layer.

[0048] Preferably,

[0049] The power line 11 is composed of 19 tinned copper wires twisted leftward, and the outer layer is covered with a ceramicized silicone rubber insulating layer.

[0050] The signal line 12 is composed of 32 copper alloy wires twisted rightward, and the outer layer is covered with a three-layer co-extruded TPE / PTFE / TPE insulating layer.

[0051] Preferably,

[0052] The diameter of the tinned copper wire in the power line 11 is 0.1 mm, and the pitch ratio is 8;

[0053] The diameter of the copper alloy wire in the signal line 12 is 0.05 mm, and the pitch ratio is 10.

[0054] In the utility model, the power line 11 and the signal line 12 are all twisted by multiple wires, and the setting of the opposite direction twisting can improve the flexibility and bending resistance of the robot cable.

[0055] Preferably,

[0056] The outer sheath 2 is made of polyurethane material filled with Kevlar fiber bundle inside.

[0057] Preferably,

[0058] The outer surface of the outer sheath 2 is provided with a spiral groove.

[0059] It should be pointed out that the outer sheath 2 is made of polyurethane material filled with Kevlar fiber bundle inside, which can greatly improve the tensile strength and wear resistance of the cable, and the setting of the spiral groove can disperse the torsional stress.

[0060] Preferably,

[0061] The outer sheath 2 is made of thermoplastic elastomer TPE and aramid fiber, and the aramid content is not less than 15wt%.

[0062] Preferably,

[0063] The outer surface of the outer sheath 2 is provided with a laser-etched corrugated structure.

[0064] The depth of the corrugated structure is 0.25-0.35 mm, and the bending radius is ≤5D, wherein D is the outer diameter of the robot cable.

[0065] The utility model discloses a robot cable, including cable core 1 and outer sheath 2, wherein cable core 1 includes power line 11, signal line 12 and the composite shielding structure 13 between them, the composite shielding structure 13 includes the power line shielding layer 131 of setting in power line 11, the signal line shielding layer 132 of setting in signal line 12 and the isolation shielding layer 133 of setting between power line shielding layer 131 and signal line shielding layer 132, power line shielding layer 131 is the aluminium foil wrapping layer of being wrapped around power line 11, signal line shielding layer 132 is the braided silver-plated copper wire layer of being woven on signal line 12, and isolation shielding layer 133 is ferrite silica gel filling layer, through the composite shielding structure 13 of power line shielding layer 131, signal line shielding layer 132 and isolation shielding layer 133, the utility model discloses a robot cable, can shield the high-frequency electric field of power line 11, absorb low-frequency electromagnetic field, greatly reduce the influence of power line 11 to signal line 12, can solve the problem of prior art.

[0066] The utility model discloses a robot cable, including cable core 1 and outer sheath 2, wherein cable core 1 includes power line 11, signal line 12 and the composite shielding structure 13 between them, the composite shielding structure 13 includes the power line shielding layer 131 of setting in power line 11, the signal line shielding layer 132 of setting in signal line 12 and the isolation shielding layer 133 of setting between power line shielding layer 131 and signal line shielding layer 132, power line shielding layer 131 is the aluminium foil wrapping layer of being wrapped around power line 11, signal line shielding layer 132 is the braided silver-plated copper wire layer of being woven on signal line 12, and isolation shielding layer 133 is ferrite silica gel filling layer, through the composite shielding structure 13 of power line shielding layer 131, signal line shielding layer 132 and isolation shielding layer 133, the utility model discloses a robot cable, can shield the high-frequency electric field of power line 11, absorb low-frequency electromagnetic field, greatly reduce the influence of power line 11 to signal line 12, can solve the problem of prior art.

Claims

1. A robotic cable, characterized by, The cable core (1) comprises a power line (11), a signal line (12) and a composite shielding structure (13) between the power line (11) and the signal line (12). The composite shielding structure (13) comprises a power line shielding layer (131) arranged on the power line (11), a signal line shielding layer (132) arranged on the signal line (12) and an isolation shielding layer (133) arranged between the power line shielding layer (131) and the signal line shielding layer (132). The power line shielding layer (131) is an aluminum foil wrapping layer wrapped around the power line (11), the signal line shielding layer (132) is a braided silver-plated copper wire layer braided on the signal line (12), and the isolation shielding layer (133) is a ferrite silicone filling layer.

2. The robotic cable of claim 1, wherein, The aluminum foil wrapping layer is further provided with a tinned copper wire braiding layer.

3. The robotic cable of claim 1, wherein, The cable core (1) and the outer sheath (2) are further provided with a whole outer layer shielding (14). The whole outer layer shielding (14) covers the cable core (1) as a whole.

4. The robotic cable of claim 3, wherein, The whole outer layer shielding (14) is provided with a longitudinal copper tape layer on the side close to the cable core (1) and a braided silver-plated aramid layer on the side close to the outer sheath (2).

5. The robotic cable of any of claims 1-4, wherein, The power line (11) is composed of 19 strands of tinned copper wire twisted to the left, and the outer layer is covered with a ceramicized silicone rubber insulation layer. The signal line (12) is composed of 32 strands of copper alloy wire twisted to the right, and the outer layer is covered with a three-layer co-extruded TPE / PTFE / TPE insulation layer.

6. The robotic cable of claim 5, wherein, The diameter of the tinned copper wire in the power line (11) is 0.1mm, and the pitch ratio is 8; The diameter of the copper alloy wire in the signal line (12) is 0.05mm, and the pitch ratio is 10.

7. The robotic cable of claim 5, wherein, The outer sheath (2) is made of polyurethane material filled with Kevlar fiber bundle inside.

8. The robotic cable of claim 7, wherein, The outer surface of the outer sheath (2) is provided with a spiral groove.

9. The robotic cable of claim 5, wherein, The outer sheath (2) is composed of thermoplastic elastomer (TPE) and aramid fiber, and the content of aramid fiber is not less than 15wt%.

10. The robotic cable of claim 9, wherein, The outer surface of the outer sheath (2) is provided with a laser-etched corrugated structure. The depth of the corrugated structure is 0.25-0.35mm, and the bending radius is ≤5D, where D is the outer diameter of the robot cable.

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