A bare copper detection mechanism and incoming line assembly

Abstract

The utility model relates to intelligent wiring harness processing technical field especially, a kind of bare copper detection mechanism and incoming line subassembly, comprising: base, base has the first detection roller assembly and the second detection roller assembly of oppositely arranged on it, first detection roller assembly is rotatably connected with first roller, second detection roller is rotatably connected with second roller, the wiring harness to be detected passes between first roller and second roller, and first roller and second roller are both in rolling contact with the two sides of the wiring harness to be detected;First roller and second roller are conductive material, first roller and second roller are also connected with on-off detector between them, when first roller and second roller are both in contact with conductor on the wiring harness to be detected, electrically conductive between them.The utility model passes through the electrically conductive material of first roller and second roller, so that the wiring harness passing between them is conducted when bare copper appears, more reliable, and lower cost, whether the thickness of wiring harness can be accurately bare copper detection.

Description

Technical Field

[0001] This utility model relates to the field of intelligent wire harness processing technology, and in particular to a bare copper detection mechanism and inlet assembly. Background Technology

[0002] Terminal crimping is an important process in wire harness processing. Before crimping the terminals of the wire harness, the coiled wire harness needs to be unwound. After unwinding, the wire harness needs to be straightened. However, during the straightening process, excessive axial force may cause relative movement between the insulation layer and the internal conductor. The conductor of the wire harness may be exposed due to the breakage of the insulation layer. How to detect the exposed conductor in the wire harness has become an urgent problem to be solved.

[0003] In related technologies, visual inspection is often used to detect bare copper. This involves setting up an industrial camera perpendicular to the unwinding direction of the wire harness and taking pictures of the side of the wire harness. When a color change is detected on the wire harness, it indicates that the conductor inside the wire harness has been exposed.

[0004] However, the aforementioned visual inspection methods have the problem of high cost, and are prone to missed detection when the conductor and insulation layer are similar in color or when the wire bundle is thin. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a bare copper detection mechanism and an inlet assembly, which improves the reliability of bare copper detection by adopting structural improvements.

[0006] According to a first aspect of the present invention, a bare copper inspection mechanism is provided, comprising:

[0007] The base has a first detection roller assembly and a second detection roller assembly arranged opposite to each other. A first roller is rotatably connected to the first detection roller assembly, and a second roller is rotatably connected to the second detection roller assembly. The wire harness to be tested passes between the first roller and the second roller, and both the first roller and the second roller make rolling contact with the two sides of the wire harness to be tested.

[0008] The first roller and the second roller are made of conductive material. A continuity detector is also connected between the first roller and the second roller. When both the first roller and the second roller are in contact with the conductor on the wire harness to be tested, they are electrically connected.

[0009] Furthermore, the base is also connected with parallel guide members at intervals, and the two guide members have guide holes. The first roller and the second roller are located on both sides of the line connecting the two guide holes, and the wire harness to be tested passes through the two guide holes.

[0010] Furthermore, the guide member has a prism-shaped structure, and the guide hole is located near the top of the guide member, with the guide member extending inward at the location of the guide hole to form an extension portion.

[0011] Furthermore, the extension has an arc-shaped opening on the side facing the first roller and / or the second roller, the curvature of which is adapted to the curvature of the first roller or the second roller.

[0012] Furthermore, the first detection roller assembly includes a first slide rod horizontally fixed on the base and a first slide block slidably connected to the first slide rod, with the first roller rotatably connected to the first slide block;

[0013] The first detection roller assembly further includes a second slide block slidably connected to the first slide rod, and a drive cam disposed on the base for driving the second slide block closer to or away from the first slide block. A first compression spring is also connected between the first slide block and the second slide block.

[0014] Furthermore, the base is also provided with a limit switch that contacts the bottom of the second slide. When the second slide is in the initial position away from the first slide, the limit switch is triggered to stop the operation of the continuity detector; when the second slide moves away from the initial position toward the first slide, the limit switch is closed.

[0015] Furthermore, the first slide also has a connecting plate extending toward the second slide, the connecting plate having a straight adjustment hole, and the second slide having a threaded hole connected to the straight adjustment hole.

[0016] Furthermore, the second detection roller assembly includes a second slide rod horizontally fixed on the base, a third slide block slidably connected to the second slide rod, and a second compression spring disposed between the third slide block and the base. The second roller is rotatably connected to the third slide block, and the second compression spring is used to apply a thrust to the third slide block in a direction closer to the first roller.

[0017] According to a second aspect of the present invention, an inlet assembly is also provided, including a bare copper detection mechanism as described in any one of the first aspects.

[0018] Furthermore, it also includes a single-wheel straightener disposed on the inlet side of the bare copper detection mechanism and a multi-wheel straightener disposed on the outlet side of the bare copper detection mechanism;

[0019] The single-wheel straightener has two opposing pressing rollers, and the wire harness passes between the two rollers; the multi-wheel straightener has multiple straightening rollers, and the multi-wheel straightener has at least two rollers arranged in different directions.

[0020] The beneficial effects of this utility model are as follows: This utility model uses the electrically conductive materials of the first roller and the second roller to make the wire harness passing between them conductive when bare copper appears. Compared with the prior art, it has higher reliability and lower cost, and can accurately detect bare copper regardless of the thickness of the wire harness. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the bare copper detection mechanism in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram illustrating the principle of bare copper detection in an embodiment of this utility model;

[0024] Figure 3 As an embodiment of this utility model Figure 1 A magnified schematic diagram of the structure at point A in the diagram;

[0025] Figure 4 This is a top view of the copper detection mechanism in an embodiment of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the bare copper detection mechanism in an embodiment of this utility model;

[0027] Figure 6 As an embodiment of this utility model Figure 4 BB-direction sectional view in the middle;

[0028] Figure 7 This is a schematic diagram of the incoming line assembly in an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the single-wheel straightener in an embodiment of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 11. First detection roller assembly; 111. First roller; 112. First slide bar; 113. First slide block; 114. Second slide block; 114a. Threaded hole; 115. Drive cam; 116. First compression spring; 117. Limit switch; 118. Connecting plate; 118a. Straight adjustment hole; 12. Second detection roller assembly; 121. Second roller; 122. Second slide bar; 123. Third slide block; 124. Second compression spring; 2. Continuity detector; 3. Guide component; 31. Guide hole; 311. Extension; 312. Arc-shaped opening; 4. Single-wheel straightener; 41. Rotary wheel; 5. Multi-wheel straightener; 51. Straightening wheel. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 6 The bare copper inspection mechanism shown includes a base 1 and a first inspection roller assembly 11 and a second inspection roller assembly 12 disposed on the base 1. Please refer to [reference needed] for details. Figure 1 In an embodiment of this utility model, the base 1 has a first detection roller assembly 11 and a second detection roller assembly 12 arranged opposite to each other. Here, "opposite" means that the first detection roller assembly 11 and the second detection roller assembly 12 are arranged in the same direction, and the wire harness to be detected passes through the middle of them. Both are oriented in a direction perpendicular to the wire harness.

[0035] A first roller 111 is rotatably connected to the first detection roller assembly 11, and a second roller 121 is rotatably connected to the second detection roller assembly 11. The wire harness to be tested passes between the first roller 111 and the second roller 121, and both the first roller 111 and the second roller 121 make rolling contact with both sides of the wire harness to be tested; that is, when the wire harness passes, both the first roller 111 and the second roller 121 make contact with the wire harness and rotate.

[0036] In this embodiment of the invention, the first roller 111 and the second roller 121 are made of conductive material. A continuity detector 2 is connected between the first roller 111 and the second roller 121. When both the first roller 111 and the second roller 121 are in contact with the conductor on the wire harness to be tested, they are electrically connected. It should be noted that the continuity detector 2 is existing technology and can take many forms. For example, it can be a low-voltage power supply and a current or voltage detector installed between the two rollers. When the bare copper part of the wire harness contacts the roller, current will flow through the conductive copper wire, forming electrical continuity. Alternatively, the presence of bare copper can be detected by the change in resistance. The continuity detector 2 can be a resistance detection circuit, which detects whether there is continuity between the two by the change in resistance. In addition, it can be connected to a PLC to detect whether there is continuity by detecting the change in capacitance.

[0037] In the above embodiments, such as Figure 2 As shown, the electrical conductive material of the first roller 111 and the second roller 121 enables the wire harness passing between them to conduct when bare copper is present. Compared with the prior art, this method has higher reliability and lower cost, and can accurately detect bare copper regardless of the thickness of the wire harness.

[0038] Based on the above embodiments, such as Figure 3 As shown in the embodiment of this utility model, guide members 3 are also connected in parallel at intervals on the base 1. The two guide members 3 have guide holes 31. The first roller 111 and the second roller 121 are located on both sides of the line connecting the two guide holes 31. The wire harness to be tested passes through the two guide holes 31. By setting the guide holes 31 on the two guide members 3, the axial movement of the wire harness can be guaranteed, and it can be limited in the up, down, left and right directions to prevent the wire harness from separating from the two rollers.

[0039] To further improve the reliability of guidance, such as Figure 3As shown, the guide member 3 has a prismatic structure, and the guide hole 31 is located near the top of the guide member 3. The guide member 3 extends inward at the location of the guide hole 31 to form an extension 311. This arrangement allows the distance between the extensions 311 of the two guide members 3 to adapt to the rollers, thereby further reducing the swaying of the wire harness. Furthermore, in this embodiment of the invention, the extension 311 has an arc-shaped opening 312 on its side facing the first roller 111 and / or the second roller 121, and the curvature of the arc-shaped opening 312 adapts to the curvature of the first roller 111 or the second roller 121. It should be noted that the arc-shaped opening 312 can face the first roller 111, or the second roller 121, or arc-shaped openings 312 can be provided on both sides, through this structural configuration.

[0040] like Figure 5 As shown in the embodiment of this utility model, the first detection roller assembly 11 includes a first slide rod 112 horizontally fixed on the base 1 and a first slide block 113 slidably connected to the first slide rod 112. The first roller 111 is rotatably connected to the first slide block 113. It should be noted that in this embodiment, the movement distance of the first slide block 113 is limited to not exceeding the line connecting the guide holes 31. The first detection roller assembly 11 also includes a second slide block 114 slidably connected to the first slide rod 112, and a drive cam 115 disposed on the base 1 for driving the second slide block 114 closer to or away from the first slide block 113. A first compression spring 116 is also connected between the first slide block 113 and the second slide block 114. The drive cam 115 can be adjusted by manual or electric rotation, such as... Figure 5 As shown, the second slide 114 has a hole adapted to the drive cam 115. The rotation of the cam causes the edge of the cam to contact the inner wall of the hole and drives the second slide 114 to move toward or away from the first slide 113. Since there is a first compression spring 116 between the first slide 113 and the second slide 114, the spring can keep the first roller 111 pressed toward the side of the wire harness.

[0041] Furthermore, to avoid malfunctions of the on / off detector 2, in embodiments of this invention, such as... Figure 5 As shown, the base 1 is also equipped with a limit switch 117 that contacts the bottom of the second slide 114. When the second slide 114 is in its initial position away from the first slide 113, the limit switch 117 is triggered to stop the operation of the continuity detector 2; when the second slide 114 moves away from its initial position toward the first slide 113, the limit switch 117 is closed. The initial position here refers to the position where the second slide 114 is away from the first slide 113, such as... Figure 5As shown, at this time, the bottom of the second slide 114 contacts the limit switch 117, causing the lever of the limit switch 117 to be pressed down, forming a switch and the continuity detection detector connected in series. At this time, the continuity detector 2 does not work. After the wire harness is in place and the second slide 114 moves toward the first slide 113, the lever of the limit switch 117 is released. At this time, the circuit of the power-on detector is turned on to perform normal detection.

[0042] In embodiments of this utility model, an adjustment function is also provided to enable the detection of wire bundles of different thicknesses, such as... Figure 5 and Figure 6 As shown, the first slide 113 also has a connecting plate 118 extending toward the second slide 114. The connecting plate 118 has a straight adjustment hole 118a, and the second slide 114 has a threaded hole 114a that connects to the straight adjustment hole 118a. The distance between the first slide 113 and the second slide 114 can be adjusted by the straight adjustment hole 118a on the connecting plate 118.

[0043] In the embodiments of this utility model, please continue to refer to... Figure 5 The second detection roller assembly 12 includes a second slide rod 122 horizontally fixed on the base 1, a third slide block 123 slidably connected to the second slide rod 122, and a second compression spring 124 disposed between the third slide block 123 and the base 1. The second roller 121 is rotatably connected to the third slide block 123, and the second compression spring 124 applies a pushing force to the third slide block 123 in a direction closer to the first roller 111. The second compression spring 124 ensures that the second roller 121 maintains constant contact with the side of the wire harness to be detected, thereby guaranteeing the reliability of the detection.

[0044] like Figure 7 As shown in the embodiments of this utility model, an inlet assembly is also provided, including the bare copper detection mechanism as described above.

[0045] Specifically, such as Figure 7 As shown, the infeed assembly also includes a single-wheel straightener 4 disposed on the infeed side of the bare copper inspection mechanism and a multi-wheel straightener 5 disposed on the outfeed side of the bare copper inspection mechanism; here, the infeed side refers to the side closest to the unwinding coil after unwinding from the unwinding coil. The specific structure of the single-wheel straightener 4 is as follows: Figure 8As shown, the single-wheel straightener 4 has two opposing pressing rollers 41. The arrangement of the two pressing rollers 41 causes the wire harness to be subjected to a reverse pulling force when passing between the two rollers 41, thereby straightening the bent wire harness. The pressing force between the two rollers 41 can be achieved by the pressing of a cam. The multi-wheel straightener 5 has multiple straightening rollers 51, and the multi-wheel straightener 5 has at least two in different directions. The multi-wheel straightener 5 is prior art. By arranging multiple straightening rollers 51 on both sides of the wire harness's travel direction, it can further compress the bent wire harness. In the embodiment of this utility model, "different directions" refers to... Figure 7 As shown, the straightening wheel 51 straightens the wire harness in both the horizontal and vertical directions. This structural design can further improve the straightness of the wire harness.

[0046] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bare copper inspection mechanism, characterized in that, include: The base has a first detection roller assembly and a second detection roller assembly arranged opposite to each other. A first roller is rotatably connected to the first detection roller assembly, and a second roller is rotatably connected to the second detection roller assembly. The wire harness to be tested passes between the first roller and the second roller, and both the first roller and the second roller make rolling contact with the two sides of the wire harness to be tested. The first roller and the second roller are made of conductive material. A continuity detector is also connected between the first roller and the second roller. When both the first roller and the second roller are in contact with the conductor on the wire harness to be tested, they are electrically connected.

2. The bare copper inspection mechanism according to claim 1, characterized in that, The base is also connected with parallel guide members at intervals. The two guide members have guide holes. The first roller and the second roller are located on both sides of the line connecting the two guide holes. The wire harness to be tested passes through the two guide holes.

3. The bare copper inspection mechanism according to claim 2, characterized in that, The guide member has a prismatic structure, and the guide hole is located near the top of the guide member. The guide member extends inward at the location of the guide hole to form an extension.

4. The bare copper inspection mechanism according to claim 3, characterized in that, The extension has an arc-shaped opening on its side facing the first roller and / or the second roller, the arc of which is adapted to the curvature of the first roller or the second roller.

5. The bare copper inspection mechanism according to claim 1, characterized in that, The first detection roller assembly includes a first slide rod horizontally fixed on the base and a first slide block slidably connected to the first slide rod, with the first roller rotatably connected to the first slide block; The first detection roller assembly further includes a second slide block slidably connected to the first slide rod, and a drive cam disposed on the base for driving the second slide block closer to or away from the first slide block. A first compression spring is also connected between the first slide block and the second slide block.

6. The bare copper inspection mechanism according to claim 5, characterized in that, The base is also provided with a limit switch that contacts the bottom of the second slide. When the second slide is in the initial position away from the first slide, the limit switch is triggered to stop the operation of the continuity detector; when the second slide moves away from the initial position toward the first slide, the limit switch is closed.

7. The bare copper inspection mechanism according to claim 6, characterized in that, The first slide also has a connecting plate extending toward the second slide, the connecting plate having a straight adjustment hole, and the second slide having a threaded hole connected to the straight adjustment hole.

8. The bare copper inspection mechanism according to claim 1, characterized in that, The second detection roller assembly includes a second slide rod horizontally fixed on the base, a third slide block slidably connected to the second slide rod, and a second compression spring disposed between the third slide block and the base. The second roller is rotatably connected to the third slide block, and the second compression spring is used to apply a thrust to the third slide block in a direction closer to the first roller.

9. An incoming line assembly, characterized in that, Includes a bare copper inspection agency as described in any one of claims 1 to 8.

10. The incoming line assembly according to claim 9, characterized in that, It also includes a single-wheel straightener disposed on the inlet side of the bare copper detection mechanism and a multi-wheel straightener disposed on the outlet side of the bare copper detection mechanism; The single-wheel straightener has two opposing pressing rollers, and the wire harness passes between the two rollers; the multi-wheel straightener has multiple straightening rollers, and the multi-wheel straightener has at least two rollers arranged in different directions.

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