Wire copper shielding layer lap joint rate detection equipment and method based on visual identification

Abstract

The invention discloses a wire copper shielding layer lap joint rate detection device and method based on visual identification, and the device comprises a rack, a first clamping mechanism, a second clamping mechanism and a visual identification mechanism, the first clamping mechanism is fixed at one side of the rack, and is used for clamping a wire and driving the wire to rotate around the axis of the wire, and the second clamping mechanism is fixed at the other side of the rack; the second clamping mechanism is movably arranged on the side, away from the first clamping mechanism, of the rack in the axis direction of the wire and used for clamping the wire and driving the wire to rotate around the axis of the wire, the visual recognition mechanism comprises a bottom plate movably arranged in the direction parallel to the axis of the wire, and a plurality of visual cameras moving in the direction perpendicular to the moving direction of the bottom plate are arranged on the bottom plate. The wire wrapped with the copper shielding layer is clamped by the first clamping mechanism and the second clamping mechanism, and the copper shielding layer is unfolded by moving the second clamping mechanism, so that the visual identification mechanism can perform visual detection on the wire conveniently.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable detection, and in particular relates to a device and method for detecting the overlap rate of a conductor copper shielding layer based on visual recognition. Background Art

[0002] The copper shielding layer of the conductor plays a vital role in cable design. Its main function is to prevent electromagnetic interference, thereby ensuring the normal working performance of the cable. In modern industrial production, with the complexity of cable structure and the diversification of application scenarios, the quality requirements for cable shielding are getting higher and higher. Especially for some applications with strict requirements on electromagnetic compatibility, such as communications, aerospace and other fields, the overlap rate of the copper shielding layer of the conductor becomes a key parameter. The overlap rate directly affects the shielding effect of the cable, and then affects the stability and reliability of the entire system.

[0003] Traditional wire copper shield overlap detection mainly relies on manual detection and simple mechanical devices. These methods have certain limitations, which are mainly manifested in the following points:

[0004] 1. Low efficiency: Manual inspection requires operators to measure and record the wires one by one. The process is cumbersome and time-consuming, and it is difficult to meet the requirements of modern industry for high-efficiency production.

[0005] 2. Poor accuracy: Manual operation is easily affected by human factors, such as the operator's experience and technical level, which can lead to inaccurate and unstable test results.

[0006] 3. Low degree of automation: Traditional detection methods are usually not automated and require a lot of manpower, which not only increases labor costs but also makes it easy to make mistakes.

[0007] In order to solve the above problems, in recent years, more and more research and applications have tried to use visual recognition technology to automatically detect the overlap rate of the copper shielding layer of the conductor. Visual recognition technology has the advantages of high precision, high efficiency, and non-contact, which can significantly improve the accuracy and efficiency of detection. However, the current application of visual recognition systems in the detection of copper shielding layers of conductors still has some problems, such as complex equipment, high cost, poor adaptability, etc., which makes it difficult to be widely used in actual production. Therefore, how to design a conductor copper shielding layer overlap rate detection device with a simple structure, low cost, and strong adaptability has become a technical problem that needs to be solved urgently. Summary of the invention

[0008] To solve the above problems, the present invention provides a device and method for detecting the overlap rate of the copper shielding layer of a conductor based on visual recognition. By adopting a clamping mechanism combining high-pressure gas and low-pressure gas, and an accurate visual recognition system, automatic detection of the copper shielding layer of the conductor is achieved.

[0009] The technical solution provided by the present invention is as follows:

[0010] In one aspect, a device for detecting overlap rate of copper shielding layer of a conductor based on visual recognition includes a rack;

[0011] The first clamping mechanism is fixed on one side of the frame and is used to clamp the conductor and drive the conductor to rotate around its axis;

[0012] The second clamping mechanism is arranged on a side of the frame away from the first clamping mechanism, and is movable along the conductor axis direction, and is used to clamp the conductor and drive the conductor to rotate around its axis;

[0013] The visual recognition mechanism comprises a bottom plate which is arranged to move parallel to the axis direction of the wire, and a plurality of visual cameras which move perpendicular to the moving direction of the bottom plate are arranged on the bottom plate.

[0014] In some embodiments, the first clamping mechanism and the second clamping mechanism have the same structure, including a base, a cross roller bearing connected to one side of the base, the outer ring of the cross roller bearing is fixed on the base, one side of the inner ring of the cross roller bearing is connected to the synchronous pulley, and the other side is connected to the rotating shaft, the rotating shaft is an annular structure, the synchronous pulley is driven by a motor, and a connecting plate is provided on the side of the rotating shaft away from the synchronous pulley;

[0015] In some embodiments, a symmetrical first clamp and a second clamp are provided on the connecting plate, the first clamp is driven by a first telescopic cylinder, and the second clamp is driven by a second telescopic cylinder. The first clamp and the second clamp move relative to each other to clamp the cable and drive the cable to rotate along its axis.

[0016] In some embodiments, the first telescopic cylinder and the second telescopic cylinder are both air cylinders, a gas distribution ring is provided on the rotating shaft, an air outlet of the gas distribution ring is provided on the connecting plate, and the first telescopic cylinder and the second telescopic cylinder are connected by an air pipe.

[0017] In some embodiments, a low-pressure gas inlet and a high-pressure gas inlet are provided on the gas distribution ring.

[0018] In some embodiments, the first telescopic cylinder and the second telescopic cylinder are symmetrically fixed on both sides of the connecting plate, the output end of the first telescopic cylinder is provided with a first push plate, the first clamp is fixed on the first push plate, the output end of the second telescopic cylinder is provided with a second push plate, the second clamp is fixed on the second push plate, two guide columns are provided on the connecting plate, and the first push plate and the second push plate are slidably connected to the guide columns.

[0019] In some embodiments, a gear is provided on the guide column, a first rack is provided on both sides of the first push plate, and a second rack is provided on both sides of the second push plate, and the first rack and the second rack are meshed with the gear at the same time.

[0020] In some embodiments, a plurality of linear guide rails are provided on the bottom plate, a slider is provided on the linear guide rails, an inverted L-shaped mounting frame is provided on the slider, the visual camera is arranged on the top of the mounting frame, and the lens of the visual camera is arranged vertically downward.

[0021] On the other hand, a method for detecting the overlap rate of a copper shielding layer of a conductor based on visual recognition is applied to the above-mentioned device for detecting the overlap rate of a copper shielding layer of a conductor based on visual recognition, and comprises the following steps:

[0022] S1: Wire clamping, the first clamping mechanism uses high-pressure gas to clamp one end of the wire, and the second clamping mechanism uses low-pressure gas to clamp the other end of the wire;

[0023] S2: The shielding layer is spread out, and the second clamping mechanism moves away from the first clamping mechanism along the conductor axis. The second clamping mechanism clamps the copper shielding layer and spreads it along the conductor to expose the indentation of the shielding layer.

[0024] S3: Visual inspection: The visual recognition mechanism, driven by the base plate, moves the visual camera above the conductor to perform visual inspection on the indentation on the copper shielding layer.

[0025] In some embodiments, the high pressure gas has a pressure of 0.5-0.6 MPa, and the low pressure gas has a pressure of 0.05-0.15 MPa.

[0026] In summary, the beneficial effects of the present invention are:

[0027] (1) The present invention has a simple structure. The first clamping mechanism and the second clamping mechanism clamp the wire wrapped with the copper shielding layer. The copper shielding layer is unfolded by moving the second clamping mechanism, thereby facilitating visual inspection by a visual recognition mechanism.

[0028] (2) The present invention provides a low-pressure gas inlet and a high-pressure gas inlet on the valve ring. During actual clamping, different clamping forces can be selected according to needs, thereby improving the versatility of the clamping.

[0029] (3) The present invention uses a first clamping mechanism to clamp one end of the conductor using high-pressure gas, and a second clamping mechanism to clamp the other end of the conductor using low-pressure gas. The second clamping mechanism moves away from the first clamping mechanism along the axis of the conductor. The second clamping mechanism clamps the copper shielding layer and unfolds it along the conductor to expose the indentation of the shielding layer, thereby realizing automated detection of the copper shielding layer and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the visual recognition mechanism of the present invention;

[0032] Figure 3 This is a schematic structural diagram of the first clamping mechanism of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the first clamping mechanism of the present invention from another perspective;

[0034] Figure 5 It is a partial structural schematic diagram of the first clamping mechanism of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the copper shielding layer of the present invention before it is unfolded;

[0036] Figure 7 This is a schematic diagram of the structure of the copper shielding layer after it is unfolded;

[0037] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0038] The reference numerals are as follows:

[0039] 1. Rack; 2. First clamping mechanism; 3. Second clamping mechanism; 4. Wire; 5. Visual recognition mechanism; 6. Bottom plate; 7. Visual camera; 8. Copper shielding layer; 9. Indentation;

[0040] 201, base; 202, cross roller bearing; 203, first synchronous pulley; 204, rotating shaft; 205, connecting plate; 206, first clamping jaw; 207, first telescopic cylinder; 208, second clamping jaw; 209, second telescopic cylinder; 210, gas distribution ring; 211, gas outlet; 212, high-pressure gas inlet; 213, first push plate; 214, second push plate; 216, guide column; 217, gear; 218, first rack; 219, second rack; 220, second synchronous pulley; 221, synchronous belt; 222, motor;

[0041] 601, linear guide rail; 602, slider; 603, feed cylinder; 604, mounting bracket. DETAILED DESCRIPTION

[0042] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The following examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0043] like Figure 1-5As shown, the present application provides a conductor copper shielding layer overlap rate detection device based on visual recognition, including a frame 1, a first clamping mechanism 2, a second clamping mechanism 3 and a visual recognition mechanism 5. Among them, the frame 1 is placed on the floor of the workshop, the first clamping mechanism 2 is fixed to one side of the frame 1, and is used to clamp the conductor 4 and drive the conductor 4 to rotate around its axis, the second clamping mechanism 3 is moved along the axis direction of the conductor 4 and is arranged on the side of the frame 1 away from the first clamping mechanism 2, and is used to clamp the conductor 4 and drive the conductor 4 to rotate around its axis, and the visual recognition mechanism 5 includes a bottom plate 6 that is moved and arranged parallel to the axis direction of the conductor 4, and a plurality of visual cameras 7 that move perpendicular to the moving direction of the bottom plate 6 are arranged on the bottom plate 6.

[0044] In this embodiment, a plurality of linear guide rails 601 are provided on the bottom plate 6, a slider 602 is provided on the linear guide rail 601, one end of the slider 602 is connected to the feed cylinder 603, an inverted L-shaped mounting frame 604 is provided on the slider 602, and the visual camera 7 is arranged on the top of the mounting frame 604, and the lens of the visual camera 7 is arranged vertically downward. When visual inspection is required, it is only necessary to start the feed cylinder 603 to move the visual camera 7 to the top of the wire 4, so as to inspect it.

[0045] A distance sensor may also be provided on the base plate 6 to detect the distance between the visual recognition mechanism 5 and the wire 4 , thereby determining the advancement distance of the feed cylinder 603 .

[0046] When in use, the wire 4 wrapped with the copper shielding layer is first clamped by the first clamping mechanism 2 and the second clamping mechanism 3, and the copper shielding layer 4 is unfolded by moving the second clamping mechanism 3, so as to facilitate the visual inspection by the visual recognition mechanism 5. In this embodiment, two visual cameras 7 are provided, which are respectively used to detect the overlap rate and color band of the copper shielding layer.

[0047] In this embodiment, the first clamping mechanism 2 and the second clamping mechanism 3 have the same structure, including a base 201 and a cross roller bearing 202. The outer ring of the cross roller bearing 202 is fixed on the base 201. One side of the inner ring of the cross roller bearing 202 is connected to the first synchronous pulley 203, and the other side is connected to the rotating shaft 204. The rotating shaft 204 is provided with a connecting plate 205 on the side away from the first synchronous pulley 203. The first synchronous pulley 203 is driven by a motor 222, and the output end of the motor 222 is connected to the second synchronous pulley 220. The first synchronous pulley 203 and the second synchronous pulley 220 are driven by a synchronous belt 221, thereby driving the rotating shaft 204 and the connecting plate 205 to rotate.

[0048] A symmetrical first clamp 206 and a second clamp 208 are provided on the connecting plate 205. The first clamp 206 is driven by the first telescopic cylinder 207, and the second clamp 208 is driven by the second telescopic cylinder 209. The rotating shaft 204 is an annular structure, and the cable passes through the rotating shaft 204. At the same time, the first clamp 206 and the second clamp 208 move relative to each other to clamp the cable, and can drive the cable to rotate along its axis.

[0049] In this embodiment, the first telescopic cylinder 207 and the second telescopic cylinder 209 are both air cylinders, and a gas distribution ring 210 is provided on the rotating shaft 204. The gas outlet 211 of the gas distribution ring 210 is set on the connecting plate 205, and the first telescopic cylinder 207 and the second telescopic cylinder 209 are connected by an air pipe.

[0050] The gas distribution ring 210 is provided with a low-pressure gas inlet and a high-pressure gas inlet 212. During actual clamping, different clamping forces can be selected according to needs, thereby improving the versatility of the clamping.

[0051] By setting the gas distribution ring 210, the gas outlet 211 of the cylinder is connected to the connecting plate 205. The gas outlet 211 can be directly connected to the first telescopic cylinder 207 or the second telescopic cylinder 209 through an air pipe. During the rotation, the air pipe will not be tangled, thereby improving the stability of the device.

[0052] Furthermore, the first telescopic cylinder 207 and the second telescopic cylinder 209 are symmetrically fixed on both sides of the connecting plate 205, the output end of the first telescopic cylinder 207 is provided with a first push plate 213, the first clamping claw 206 is fixed on the first push plate 213, the output end of the second telescopic cylinder 209 is provided with a second push plate 214, and the second clamping claw 208 is fixed on the second push plate 214. Two guide pillars 216 are provided on the connecting plate 205, and the first push plate 213 and the second push plate 214 are slidably connected to the guide pillars 216.

[0053] The first clamping jaw 206 and the second clamping jaw 208 are fixed on the first push plate 213 and the second push plate 214. At the same time, the first push plate 213 and the second push plate 214 are guided by the guide column 216, which ensures that the relative movement of the first clamping jaw 206 and the second clamping jaw 208 is in the same straight line, thereby improving the stability of clamping.

[0054] A gear 217 is fixed to the guide column 216 through a gear 217 seat. First racks 218 are provided on both sides of the first push plate 213 , and second racks 219 are provided on both sides of the second push plate 214 . The first rack 218 and the second rack 219 are meshed with the gear 217 at the same time.

[0055] The gear 217 is meshed with the first rack 218 and the second rack 219 at the same time. When the first telescopic cylinder 207 or the second telescopic cylinder 209 pushes the first push plate 213 or the second push plate 214 to move, the coordination of the rack and the gear 217 can ensure that the first push plate 213 and the second push plate 214 on both sides can move synchronously, ensuring that the first clamp 206 and the second clamp 208 can clamp the cable at the same time, ensuring that the cable is at the center of the axis when clamped, thereby improving the accuracy of clamping.

[0056] Furthermore, the first clamping jaw 206 and the second clamping jaw 208 are both in a comb-teeth shape, and their cross-sections are V-shaped. The comb teeth on the first clamping jaw 206 and the second clamping jaw 208 are staggered.

[0057] The staggered comb-tooth structure allows the comb teeth on the first clamping jaw 206 and the second clamping jaw 208 to interlock when clamping thinner cables, ensuring that the surfaces of the first clamping jaw 206 and the second clamping jaw 208 can fit the surface of the thin cable; when clamping thicker cables, the comb teeth do not need to interlock, and the cable is clamped only by the V-shaped surfaces of the first clamping jaw 206 and the second clamping jaw 208, thereby improving the versatility of cable clamping.

[0058] Please refer to Figure 6-7 The present application also provides a method for detecting the overlap rate of a copper shielding layer of a conductor based on visual recognition, which is applied to the above-mentioned device for detecting the overlap rate of a copper shielding layer of a conductor based on visual recognition, and comprises the following steps:

[0059] S1: Wire clamping, the first clamping mechanism 2 uses high-pressure gas to clamp one end of the wire 4, and the second clamping mechanism 3 uses low-pressure gas to clamp the other end of the wire 4;

[0060] S2: The shielding layer is spread out, and the second clamping mechanism 3 moves away from the first clamping mechanism 2 along the axial direction of the conductor 4. The second clamping mechanism 3 clamps the copper shielding layer and spreads it along the conductor 4 to expose the indentation of the shielding layer.

[0061] S3: Visual inspection: the visual recognition mechanism 5, driven by the bottom plate 6, moves the visual camera 7 to above the wire 4 to perform visual inspection on the indentation on the copper shielding layer.

[0062] The high pressure gas is 0.5-0.6Mpa, and the low pressure gas is 0.05-0.15Mpa.

[0063] Specifically, the cylinder of the first clamping mechanism 2 uses an air pressure of 0.5Mpa to clamp the wire, and the clamping pressure is 5bar. The cylinder of the second clamping mechanism 3 uses an air pressure of 0.05 to clamp the wire 4, and the clamping pressure is 0.5bar. The other end of the wire 4 is clamped at low pressure and moved to the side away from the first clamping mechanism 2 until the indentation of the shielding layer is exposed, and then the copper shielding layer and the indentation are visually inspected.

[0064] It should be noted that the implementation methods not shown or described in the drawings or the main text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments.

[0065] It should also be noted that the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", "inside", "outside", etc., are only for reference to the directions of the drawings and are not intended to limit the scope of protection of this application.

[0066] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A wire copper shielding layer overlap detection device based on visual recognition, characterized in that: comprising a frame (1); A first clamping mechanism (2) is fixed on one side of the frame (1) and is used to clamp the conductor (4) and drive the conductor (4) to rotate around its axis; A second clamping mechanism (3) is arranged on a side of the frame (1) away from the first clamping mechanism (2) and is movable along the axis direction of the conductor (4), and is used to clamp the conductor (4) and drive the conductor (4) to rotate around its axis; The visual recognition mechanism (5) comprises a base plate (6) which is arranged to move parallel to the axial direction of the wire (4), and a plurality of visual cameras (7) which move perpendicular to the moving direction of the base plate (6) are arranged on the base plate (6).

2. The conductor copper shielding layer overlap detection device based on visual recognition according to claim 1 is characterized in that: The first clamping mechanism (2) and the second clamping mechanism (3) have the same structure, comprising a base (201), a cross roller bearing (202) connected to one side of the base (201), the outer ring of the cross roller bearing (202) being fixed on the base (201), one side of the inner ring of the cross roller bearing (202) being connected to a synchronous pulley (203), and the other side being connected to a rotating shaft (204), the rotating shaft (204) being an annular structure, the synchronous pulley (203) being driven by a motor, and a connecting plate (205) being provided on a side of the rotating shaft (204) away from the synchronous pulley (203); The connecting plate (205) is provided with a symmetrical first clamping jaw (206) and a second clamping jaw (208); the first clamping jaw (206) is driven by a first telescopic cylinder (207), and the second clamping jaw (208) is driven by a second telescopic cylinder (209); the first clamping jaw (206) and the second clamping jaw (208) move relative to each other to clamp the cable and drive the cable to rotate along its axial direction.

3. The conductor copper shielding layer overlap rate detection device based on visual recognition according to claim 2 is characterized in that: The first telescopic cylinder (207) and the second telescopic cylinder (209) are both air cylinders. A gas distribution ring (210) is provided on the rotating shaft (204). The gas outlet (211) of the gas distribution ring (210) is arranged on the connecting plate (205), and the first telescopic cylinder (207) and the second telescopic cylinder (209) are connected via an air pipe.

4. The conductor copper shielding layer overlap detection device based on visual recognition according to claim 3 is characterized in that: The gas distribution ring (210) is provided with a low-pressure gas inlet (211) and a high-pressure gas inlet (212).

5. The conductor copper shielding layer overlap rate detection device based on visual recognition according to claim 2 is characterized in that: The first telescopic cylinder (207) and the second telescopic cylinder (209) are symmetrically fixed on both sides of the connecting plate (205); a first push plate (213) is provided at the output end of the first telescopic cylinder (207); the first clamping claw (206) is fixed on the first push plate (213); a second push plate (214) is provided at the output end of the second telescopic cylinder (209); the second clamping claw (208) is fixed on the second push plate (214); two guide pillars (216) are provided on the connecting plate (205); the first push plate (213) and the second push plate (214) are slidably connected to the guide pillars (216).

6. The conductor copper shielding layer overlap detection device based on visual recognition according to claim 5 is characterized in that: A gear (217) is provided on the guide column (216), first racks (218) are provided on both sides of the first push plate (213), and second racks (219) are provided on both sides of the second push plate (214), and the first rack (218) and the second rack (219) are meshed with the gear (217) at the same time.

7. The conductor copper shielding layer overlap detection device based on visual recognition according to claim 1 is characterized in that: The base plate (6) is provided with a plurality of linear guide rails (601), the linear guide rails (601) are provided with a slider (602), one end of the slider (602) is connected to the feed cylinder (603), the slider (602) is provided with an inverted L-shaped mounting frame (604), the visual camera (7) is arranged on the top of the mounting frame (604), and the lens of the visual camera (7) is arranged vertically downward.

8. A method for detecting the overlap rate of a conductor copper shielding layer based on visual recognition, applied to the device for detecting the overlap rate of a conductor copper shielding layer based on visual recognition according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: wire clamping, the first clamping mechanism (2) uses high-pressure gas to clamp one end of the wire (4), and the second clamping mechanism (3) uses low-pressure gas to clamp the other end of the wire (4); S2: The shielding layer is spread out, and the second clamping mechanism (3) moves away from the first clamping mechanism (2) along the axis of the conductor (4). The second clamping mechanism (3) clamps the copper shielding layer and spreads it along the conductor (4), exposing the indentation of the shielding layer. S3: Visual inspection, the visual recognition mechanism (5), driven by the base plate (6), moves the visual camera (7) to above the conductor (4) to perform visual inspection on the indentation on the copper shielding layer.

9. The method for detecting the overlap rate of the copper shielding layer of a conductor based on visual recognition according to claim 8, characterized in that: The pressure of the high-pressure gas is 0.5-0.6Mpa, and the pressure of the low-pressure gas is 0.05-0.15Mpa.

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