Cable on-off detection device and method

Abstract

The invention relates to the technical field of cable processing, in particular to a cable on-off detection device, which comprises a cable clamping assembly, a detection assembly and a control assembly, and is characterized in that the cable clamping assembly comprises a clamping jaw which is used for clamping a cable jacket; the detection assembly is arranged opposite to the clamping center of the cable clamping assembly and comprises a first detection clamp, a second detection clamp and a third detection clamp, the first detection clamp is a cylinder and is used for clamping a shielding layer, the second detection clamp and the third detection clamp are sheet-shaped, and semicircular grooves are formed in the ends, facing the cable, of the second detection clamp and the third detection clamp; the two groups of semicircular grooves are respectively used for clamping an insulating layer and a central conductor of a cable; wherein a circle formed by combining the two semicircular grooves of the second detection clamps is matched with the outer diameter of the insulating layer, the two second detection clamps are conductors, and when the insulator is clamped in place, the two second detection clamps can be electrically conducted; the first detection clamp, the second detection clamp and the third detection clamp are also used for power-on detection between every two.

Description

Technical Field

[0001] The present invention relates to the technical field of cable processing, and in particular to a device and method for detecting on-off circuits of cables. Background Art

[0002] like Figure 1 As shown in the figure, the cable is usually composed of an outer sheath 01, a shielding layer 02, an insulating layer 03 and a center conductor 04. If there is a quality problem with at least one layer of the cable, and the wiring harness has been used in medical treatment, transportation, etc., when a fault occurs, it will cause serious failure and it will be difficult to troubleshoot. Therefore, the cable should be quality tested.

[0003] In the related art, the coating condition of the cable is usually detected by a visual detection mechanism, which clamps the cable and visually identifies the cable to determine whether the conductive performance of the cable is good.

[0004] However, the above method has the problem of insufficient cable quality detection accuracy and low efficiency. When detecting cables, the position accuracy of the clamped cables is required to be high. It is difficult to determine whether the cables are in the area to be detected during detection, resulting in inaccurate detection accuracy. Visual inspection is prone to misjudgment. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a cable continuity detection device and method, which uses a first detection clamp, a second detection clamp, and a third detection clamp to perform in-place detection and power-on detection to ensure that the cable continuity is detected when the cable is in place.

[0006] According to a first aspect of the present invention, there is provided a cable continuity detection device, comprising: A cable clamping assembly, the cable clamping assembly comprising a clamping claw, the clamping claw being used to clamp the outer sheath of the cable; A detection component is arranged opposite to the clamping center of the cable clamping component, the detection component includes two first detection clamps, a second detection clamp and a third detection clamp, the first detection clamp is a column, used to clamp the shielding layer, the second detection clamp and the third detection clamp are sheet-shaped, and the second detection clamp and the third detection clamp have semicircular grooves at one end facing the cable, and the two groups of semicircular grooves are used to clamp the insulation layer and the center conductor of the cable respectively; The circle formed by merging the two semicircular grooves of the second detection clamp is adapted to the outer diameter of the insulating layer, and the two second detection clamps are conductors. When the insulating layer is clamped in place, the two second detection clamps can be electrically connected; the first detection clamp, the second detection clamp and the third detection clamp are also used for power-on detection between each other.

[0007] In some embodiments of the present invention, the clamping surface of the clamping claw has a 90-degree angle structure, and the clamping claw rotates from an initial position toward the cable on a plane perpendicular to the cable, and the travel ends after the cable is clamped.

[0008] In some embodiments of the present invention, the two clamping claws have a plurality of meshing teeth, and the two clamping claws have wire clamping holes for cables to pass through, and the shape of the wire clamping holes corresponds to the shape of the cable.

[0009] In some embodiments of the present invention, the cable continuity detection device further includes a first back plate, the cable clamping assembly further includes a clamping arm, the clamping claw is fixedly connected to the clamping arm, and the clamping arm is movably and fixedly connected to the first back plate.

[0010] In some embodiments of the present invention, the detection assembly includes a driving member and two sliding plates connected to the driving member, the first detection clamp, the second detection clamp, and the third detection clamp are all fixed on the sliding plates, the driving member is used to drive the two sliding plates to be fixedly connected to the driving member, and the driving member drives the first detection clamp, the second detection clamp, and the third detection clamp to move in the horizontal direction toward or away from the wiring harness.

[0011] In some embodiments of the present invention, the cable circuit-breaking detection device includes a second backplane, which is connected to the first backplane via a detection member slide rail and can be relatively slidably connected in a vertical direction. An electric push rod is provided on the back of the first backplane, and the electric push rod includes a movable rod connected to the second backplane, and the movable rod is fixedly connected to the driving member. The electric push rod pushes the movable rod to move, thereby pushing the driving member to drive the second backplane to move in a vertical direction.

[0012] In some embodiments of the present invention, at least one group of the first detection clamp, the second detection clamp and the third detection clamp is disposed on the second back plate.

[0013] In some embodiments of the present invention, the driving member is a cylinder clamp, and two ends of the cylinder clamp are respectively fixedly connected to the two sliding plates.

[0014] In some embodiments of the present invention, the third detection clamp has teeth that mesh with each other.

[0015] According to a second aspect of the present invention, a cable continuity detection method is provided, which uses the cable continuity detection device as described in the first aspect, and includes the following steps: Move the cable to the clamping center of the detection component, and clamp the outer sheath of the cable to be detected by the clamping component; Closing the detection assembly, so that the first detection clamp clamps the cable shielding layer, the second detection clamp clamps the insulating layer, and the third detection clamp clamps the center conductor; The second detection clamp is powered on to determine whether the two second detection clamps are connected. If not, an alarm indicating that the clamping is not in place is issued. If so, the detection continues. Electrical detection is performed between the first detection clamp, the second detection clamp and the third detection clamp respectively. If a short circuit occurs between the two, a shielding net overlap alarm is issued.

[0016] The beneficial effects of the present invention are as follows: the present invention detects the electrical conductivity between the second detection clamps by merging the semicircular grooves in the second detection clamp to form a circle that matches the outer diameter of the insulation layer, thereby determining whether the insulation layer is clamped in place; compared with the prior art, the insulation layer is ensured to be in place, and when the cable coating condition is detected, it is ensured to be clamped in the corresponding layer of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a cable to be detected in the background technology of the present invention; Figure 2 Schematic diagram of the structure of a cable continuity detection device in an embodiment of the present invention; Figure 3 In the embodiment of the present invention Figure 2 A partial enlarged view of the middle A; Figure 4 It is a schematic diagram of the structure of a cable clamping assembly in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the clamping claw in an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a cable continuity detection device from another perspective in an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a cable continuity detection device from a rear perspective in an embodiment of the present invention; Figure 8 In the embodiment of the present invention Figure 5 A partial enlarged view of point B in the middle; Fig. 9 It is a structural schematic diagram of a detection component in an embodiment of the present invention; Fig.10A flowchart of the steps of the cable continuity detection method according to an embodiment of the present invention; Fig.11 It is a structural state diagram of the shielding wire in the shielding layer overlapped with the insulating layer and the center conductor in an embodiment of the present invention.

[0019] Explanation of the accompanying drawings: 1. Cable clamping assembly; 11. Clamping claw; 11a. Second wire hole; 12. Clamping arm; 2. Detection assembly; 21. First detection clamp; 22. Second detection clamp; 23. Third detection clamp; 24. Driving member; 24a. Cylinder clamp; 24b. Sliding plate; 3. First back plate; 31. Electric push rod; 4. Second back plate; 01. Outer coating; 02. Shielding layer; 03. Insulating layer; 04. Center conductor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] like Figures 2 to 9 and Fig.11 The cable continuity detection device shown comprises: a cable clamping component 1 and a detection component 2; In some embodiments of the present invention, Figure 3-4As shown in the figure, the cable clamping assembly 1 includes a clamping claw 11, and the clamping claw 11 is used to clamp the cable outer sheath 01; through the setting of the clamping claw 11, the cable can be clamped and fixed in an automated manner, providing conditions for the cable to be in place, so that the cable can be detected when it is fixed; it should be pointed out here that the clamping claw 11 can realize the clamping action by mechanical or electric means, and the specific structural form of the clamping claw 11 is set by those skilled in the art as required; like Figure 2-3 As shown in the figure, the detection component 2 is arranged opposite to the clamping center of the cable clamping component 1, and includes two first detection clamps 21, a second detection clamp 22 and a third detection clamp 23. The first detection clamp 21 is a column for clamping the shielding layer 02. The second detection clamp 22 and the third detection clamp 23 are sheet-shaped, and the second detection clamp 22 and the third detection clamp 23 have semicircular grooves at one end facing the cable. The two groups of semicircular grooves are respectively used to clamp the insulating layer 03 and the center conductor 04 of the cable; during the detection, when the groove is completely fitted with the cable and the two second detection clamps 22 are in contact, or the two The third detection clamp 23 is in full contact to make the two second detection clamps 22 or the two third detection clamps conductive, indicating that the cable is clamped in place; the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 are in sheet shape, and when wear or other faults occur, the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 are easy to replace, reducing the maintenance and replacement costs, and the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 are easy to replace, and the aperture of the semicircular groove can be adjusted, so that the cable connection and disconnection device can be suitable for more cables.

[0024] Continue to refer to Figure 2-3 , 11, wherein the circle formed by the two semicircular grooves of the second detection clamp 22 is adapted to the outer diameter of the insulating layer 03, and the two second detection clamps are conductors. When the insulating layer 03 is clamped in place, the two second detection clamps 22 can be electrically connected; the first detection clamp 21, the second detection clamp 22 and the third detection clamp 23 are also used for power-on detection between each other. The specific detection process is as follows: the cable clamping assembly 1 clamps the middle section of the cable outer sheath 01 so that the cable remains in a horizontal position during detection. The second detection clamp 22 clamps the insulating layer 03 of the cable. If the clamping is not in place, the insulating layer 03 is not in the groove and the insulating layer 03 is not in contact with the groove, then the two second detection clamps 22 are not in contact. At this time, the second detection clamp 22 cannot be connected after power is turned on, indicating that the clamping position is incorrect, an alarm is issued, and then a short circuit detection is performed to determine whether the shielding layer 02 is overlapped with the insulating layer 03 or the center conductor 04. The situation where the shielding wire in the shielding layer 02 is overlapped with the insulating layer 03 and the center conductor 04 is as shown in the figure. Fig.11As shown in , at this time, the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 can all be powered on for detection. For example, the first detection clamp 21 and the second detection clamp 22 can be powered on, or the first detection clamp 21 and the third detection clamp 23 can be powered on, or the second detection clamp 22 and the third detection clamp 23 can be powered on. Then, the wire on the shielding layer 02 has been overlapped with the insulating layer 03 or the center conductor 04. At this time, it is determined that the cable quality is unqualified and a shielding mesh overlap alarm is issued. In order to avoid the following situations, it is necessary to detect the condition of the shielding layer 02: when the wires of the shielding layer 02 overlap the insulating layer 03, the integrity of the insulating layer 03 may be destroyed, resulting in a decrease in insulation performance, which may make the cable prone to leakage or breakdown, increasing the risk of electrical accidents; when the wires of the shielding layer 02 overlap the insulating layer 03 or the center conductor 04, the continuity of the shielding layer 02 may be destroyed; if the wires of the shielding layer 02 overlap the center conductor 04, a short circuit may be formed. In the case of excessive current, this short circuit may cause the cable to overheat, burn, or even cause fire and other safety hazards. By setting the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 of the cable clamping assembly 1, it can be ensured that when the cable is detected, it is clamped in the set position, so that the overlapping condition of the shielding wires in the shielding layer 02 can be accurately detected, so that the detection accuracy is improved while improving the efficiency of cable quality detection.

[0025] In some embodiments of the present invention, Figure 4-5 As shown in , the clamping surface of the clamping claw 11 has a 90-degree angle structure. The clamping claw 11 rotates from the initial position toward the cable on a plane perpendicular to the cable, and the travel ends after clamping the cable. For example, when the cable moves into the cable continuity detection device, the clamping claw 11 rotates from the initial position toward the cable, and the rotation trajectory of the clamping claw 11 is an arc, and the plane where the arc is located is perpendicular to the cable. The clamping claw 11 clamps the cable and remains motionless, providing a stable detection condition for the cable detection; it should be pointed out here that the clamping claw 11 has a certain clamping force, and when clamping the cable, it will not deform the cable and ensure that the cable remains motionless.

[0026] In order to further ensure the cable quality and improve the cable quality detection accuracy, in some embodiments of the present invention, continue to refer to Figure 4-5The clamping claw 11 has a plurality of meshing teeth, and the two clamping claws 11 have a clamping wire hole 11a for the cable to pass through, and the shape of the clamping wire hole 11a corresponds to the shape of the cable. The circular shape of the cable can make the clamping claw 11 fit the shape of the cable tightly, preventing the cable from sliding or falling off during the detection process, thereby improving the accuracy and stability of clamping, and avoiding excessive squeezing or damage to the cable; and the clamping claw 11 is a separate rotatable structure, and the clamping claw 11 is connected by bolts and screws, so that the clamping claw is easy to replace, and the easily replaceable clamping claw 11 can have clamping wire holes 11a of different diameters, so that the device can be applied to cables of more sizes.

[0027] In some embodiments of the present invention, Figure 5-7 As shown in , the cable continuity detection device further includes a first back plate 3, the cable clamping assembly 1 further includes a clamping arm 12, the clamping claw 11 is fixedly connected to the clamping arm 12, and the clamping arm 12 is fixedly connected to the back plate 3. It should be pointed out here that the clamping arm 12 and the clamping claw 11, or the clamping arm 12 and the back plate 3 can be fixed by bolts, welding, splicing, etc. The movement of the clamping arm 12 drives the movement of the clamping claw 11 as a whole, and the clamping claw 11 clamps the cable separately. Through such a setting, the position of the clamping claw 11 can be adjusted more accurately, so that the cable position is more accurate, and the cable quality detection accuracy is improved.

[0028] In some embodiments of the present invention, Figure 5-8 As shown in , the detection assembly includes a driving member 24 and two sliding plates 24b connected to the driving member 24, and the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 are all fixed on the sliding plate 24b, and the driving member 24 is used to drive the two sliding plates 24b to move in the horizontal direction toward or away from the wiring harness. Through the setting of the driving member 24, it can be ensured that the connection between the first detection clamp 21, the second detection clamp 22, the third detection clamp 23 and the driving member 24 is stable, and the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 can be moved toward the cable in the horizontal direction at the same height by being fixed on the two sliding plates 24b, and it can be further ensured that the semicircular groove shape in the middle of the relative second detection clamp 22 and the third detection clamp 23 can be respectively synthesized into a circular hole corresponding to the shape of the cable insulation layer 03 and the center conductor 04, thereby ensuring the quality detection accuracy of the cable.

[0029] In some embodiments of the present invention, Figure 6-9As shown in , the cable continuity detection device includes a second back plate 4, which is relatively slidably connected to the first back plate 3 in the vertical direction, and an electric push rod 31 is arranged on the back of the first back plate 3, which is connected to the second back plate 4 to drive the second back plate 4 to move in the vertical direction. The sliding connection provides a stable moving path for the driving member, ensuring the stability and accuracy of the driving member during the movement. The electric push rod 31a drives the internal mechanical structure, such as a screw rod, through a motor to make the second back plate 4 move linearly in the vertical direction; the second back plate 4 is relatively slidably connected to the first back plate 3 in the vertical direction, and the electric push rod 31 drives the second back plate 4 to move in the vertical direction, so that the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 can be accurately positioned in three-dimensional space.

[0030] In some embodiments of the present invention, Figure 6-9 As shown in , at least one group of the first detection clip 21, the second detection clip 22 and the third detection clip 23 is arranged on the second back plate 4. When multiple groups of the first detection clip 21, the second detection clip 22 and the third detection clip 23 are arranged in the vertical direction of the second back plate 4, the device can detect multiple cables of different heights at the same time, thereby improving the detection efficiency; two or more groups of the first detection clip 21, the second detection clip 22 and the third detection clip 23 are arranged in the vertical direction, so that the device can be used more flexibly. When a problem occurs in one group of the first detection clip 21, the second detection clip 22 and the third detection clip 23, the first detection clip 21, the second detection clip 22 and the third detection clip 23 of other groups can be used for detection; it should be pointed out here that the first detection clip 21, the second detection clip 22 and the third detection clip 23 can be fixed on the second back plate 4 by welding, splicing and bonding.

[0031] In some embodiments of the present invention, reference Fig. 9 The driving member 24 is a cylinder clamp 24a, and the two ends of the cylinder clamp 24a are fixedly connected to the two sliding plates 24b respectively. The setting of the cylinder clamp 24a further ensures that the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 relative to each other can move toward the cable along the same straight line on a plane perpendicular to the cable, so that the relative contact surfaces of the first detection clamp 21, the second detection clamp 22, and the third detection clamp 23 can accurately contact each other, which can further ensure the accuracy of cable quality detection.

[0032] In some embodiments of the present invention, the third detection clamps 23 have meshing teeth. Through the meshing teeth, when two opposing third detection clamps 23 are in contact, the current can be conducted only when the teeth are fully in contact, ensuring that the center conductor 04 is in the groove and that the cable clamping position is correct.

[0033] Reference Fig.10The present invention also provides a cable continuity detection method, comprising the following steps: S10: moving the cable to the clamping center of the detection component, and clamping the outer sheath of the cable to be detected by the clamping component; S20: closing the detection assembly so that the first detection clamp clamps the cable shielding layer, the second detection clamp clamps the insulating layer, and the third detection clamp clamps the center conductor; S30: respectively detecting whether the two second detection clamps and the two third detection clamps are conductive; S40: Conducting power-on detection between the first detection clamp, the second detection clamp, and the third detection clamp, respectively. If a short circuit occurs between any two of them, a shielding mesh overlap alarm is issued.

[0034] The detailed steps of the cable continuity detection method have been given in the description of the above-mentioned cable continuity detection device and will not be repeated here.

[0035] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cable continuity detection device, characterized in that: include: A cable clamping assembly, the cable clamping assembly comprising a clamping claw, the clamping claw being used to clamp the outer sheath of the cable; A detection component is arranged opposite to the clamping center of the cable clamping component, the detection component includes two first detection clamps, a second detection clamp and a third detection clamp, the first detection clamp is a column, used to clamp the shielding layer, the second detection clamp and the third detection clamp are sheet-shaped, and the second detection clamp and the third detection clamp have semicircular grooves at one end facing the cable, and the two groups of semicircular grooves are used to clamp the insulation layer and the center conductor of the cable respectively; The circle formed by merging the two semicircular grooves of the second detection clamp is adapted to the outer diameter of the insulating layer, and the two second detection clamps are conductors. When the insulating layer is clamped in place, the two second detection clamps can be electrically connected; the first detection clamp, the second detection clamp and the third detection clamp are also used for power-on detection between each other.

2. The cable continuity detection device according to claim 1, characterized in that: The clamping surface of the clamping claw has a 90-degree rotation structure. The clamping claw rotates toward the cable from an initial position on a plane perpendicular to the cable, and the travel ends after the cable is clamped.

3. The cable continuity detection device according to claim 2, characterized in that: The two clamping claws have a plurality of meshing teeth, and the two clamping claws have wire clamping holes for cables to pass through, and the shape of the wire clamping holes corresponds to the shape of the cables.

4. The cable continuity detection device according to claim 2, characterized in that: The cable continuity detection device further includes a first back plate, and the cable clamping assembly further includes a clamping arm, the clamping claw is fixedly connected to the clamping arm, and the clamping arm is fixedly connected to the first back plate.

5. The cable continuity detection device according to claim 4, characterized in that: The detection assembly includes a driving member and two sliding plates connected to the driving member, the first detection clamp, the second detection clamp and the third detection clamp are all fixed on the sliding plates, and the driving member is used to drive the two sliding plates to move in a horizontal direction toward or away from the wiring harness.

6. The cable continuity detection device according to claim 5, characterized in that: The cable continuity detection device includes a second back plate, which is slidably connected to the first back plate in a vertical direction. An electric push rod is provided on the back of the first back plate, and the electric push rod is connected to the second back plate for driving the second back plate to move in a vertical direction.

7. The cable continuity detection device according to claim 6, characterized in that: At least one group of the first detection clamp, the second detection clamp and the third detection clamp is arranged on the second back plate.

8. The cable continuity detection device according to claim 7, characterized in that: The driving member is a cylinder clamp, and two ends of the cylinder clamp are respectively fixedly connected to the two sliding plates.

9. The cable continuity detection device according to claim 1, characterized in that: The third detection clamp has teeth that mesh with each other.

10. A cable continuity detection method, characterized in that: The cable continuity detection device according to any one of claims 1 to 9 comprises the following steps: Move the cable to the clamping center of the detection component, and clamp the outer sheath of the cable to be detected by the clamping component; Closing the detection assembly, so that the first detection clamp clamps the cable shielding layer, the second detection clamp clamps the insulating layer, and the third detection clamp clamps the center conductor; The second detection clamp is powered on to determine whether the two second detection clamps are connected. If not, an alarm indicating that the clamping is not in place is issued. If so, the detection continues. Electrical detection is performed between the first detection clamp, the second detection clamp and the third detection clamp respectively. If a short circuit occurs between the two, a shielding net overlap alarm is issued.

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