Visual detection device and method based on flat cable sequence detection

Abstract

The invention discloses a visual detection device and method based on flat cable sequence detection, and relates to the technical field of flat cable visual detection devices.The visual detection device comprises a visual detector arranged above a conveying mechanism, and the conveying mechanism is provided with a flat cable carding mechanism; the flat cable carding mechanism comprises a plurality of pairs of guide plates, a wind scooper, an air pump and a first position adjusting mechanism. By arranging the flat cable carding mechanism, airflow generated by an air pump enters an air guide cover through a conveying pipe and then blows towards gaps of wires through a nozzle which is inclined to the flat cable conveying direction at an acute angle, and overlapped wires are separated by means of airflow impact force and are carded at intervals; the non-contact carding mode effectively solves the problems of wire extrusion and overlapping caused by bending of the flat cable, so that the wires are uniformly arranged, a clear wire image is provided for a visual detector, and the wire sequence detection precision is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire harness visual inspection device, and particularly relates to a visual inspection device and method based on wire harness sequence detection. BACKGROUND

[0002] The wire harness is usually composed of a plurality of insulated wires arranged according to a preset rule, and the correctness of the wire sequence is directly related to the accuracy and stability of signal transmission of the electronic device. If the wire sequence is incorrect, it may cause device failure, signal interference, hardware damage, even safety accidents, and therefore, the wire sequence must be strictly detected during the production and assembly of the wire harness. However, in actual application, the wire harness is usually made of flexible insulating material, and in the process of storage winding or transportation, it is easy to produce a certain permanent bending. The existing visual inspection device based on wire harness sequence detection still has obvious deficiencies in processing such bent wire harness.

[0003] The conveying belt and support structure of the conveying mechanism of the existing visual inspection device based on wire harness sequence detection essentially belong to a planar rigid structure, and can only realize passive bearing and conveying of the wire harness. When the wire harness is obviously permanently bent due to storage or transportation, and is laid flat on the planar rigid conveying mechanism, the wires in the bent area of the wire harness will be extruded and overlapped or have uneven spacing due to inelastic deformation. At this time, the arrangement form of the wires in the image of the bent area obtained by the image acquisition mechanism is quite different from the straight arrangement and equal spacing distribution features required by the standard wire sequence template, which will cause the image processing algorithm in the control mechanism to be unable to accurately identify the edges and specific positions of the wires, and further difficult to complete accurate sequence matching, so that the detection accuracy is at a low level, and cannot meet the requirements of the application scenarios with high requirements for wire harness sequence detection accuracy. SUMMARY

[0004] The present application aims to provide a visual inspection device and method based on wire harness sequence detection, which can effectively solve the problems in the background art.

[0005] To achieve the above object, the application provides the following technical scheme: a visual detection device based on flat cable sequence detection, comprising a visual detector arranged above a conveying mechanism, wherein the conveying mechanism is provided with a flat cable carding mechanism; the flat cable carding mechanism comprises a plurality of pairs of guide plates, a wind deflector, an air pump and a first position adjusting mechanism; wherein the plurality of pairs of guide plates are mounted above the conveying mechanism through a first mounting frame, the bottom of each pair of guide plates is close to the top of the conveying belt of the conveying mechanism, and the spacing between each pair of guide plates is greater than the width of the flat cable; the wind deflector is arranged between each pair of guide plates; the outlet end of the wind deflector is arranged at an acute angle with the conveying direction of the conveying mechanism; the output end of the wind deflector is provided with a plurality of equally spaced nozzles, and the nozzles are opposite the gaps between adjacent wires in the flat cable; the air pump is mounted on the first mounting frame, and the output end of the air pump is connected with the wind deflector through a conveying pipe; and the first position adjusting mechanism is arranged on the guide plate and is used for adjusting the spacing between the nozzles.

[0006] Preferably, the conveying pipe is provided with an adjusting valve and is used for adjusting the air volume discharged by the wind deflector.

[0007] Preferably, the first position adjusting mechanism comprises a rotating wheel, a cover plate, a plurality of first guide shafts, a first sliding block and a second sliding block; the cover plate is arranged on the output end of the wind deflector; the rotating wheel is rotationally connected in the wind deflector about its axis, the plurality of first guide shafts are arranged in the wind deflector in parallel with the axis of the rotating wheel, the plurality of first sliding blocks are slidingly connected to the first guide shafts, a plurality of arc-shaped grooves are formed in the rotating wheel, the second sliding block is arranged on the first sliding block and slidingly connected to the arc-shaped grooves; the nozzles are arranged on the first sliding block, air holes are formed in the first sliding block, the inside of the wind deflector is communicated with the nozzles through the air holes, a first sliding groove is formed in the cover plate, the nozzles are arranged in the first sliding groove, and the length of the first sliding groove is less than the width of the first sliding block.

[0008] Preferably, the flat cable carding mechanism further comprises an angle adjusting mechanism; the angle adjusting mechanism comprises a ratchet wheel, a mounting block, a connecting shaft, a limiting block and a first spring; the ratchet wheel is coaxially fixed to the first mounting frame, the mounting block is mounted on the guide plate, the connecting shaft is inserted into the mounting block, the axis of the connecting shaft is perpendicular to the axis of the first mounting frame, the limiting block is arranged at one end of the connecting shaft and is inserted into the ratchet groove of the ratchet wheel, and the first spring is sleeved on the connecting shaft, one end of the first spring is connected with the limiting block, and the other end of the first spring is connected with the mounting block.

[0009] Preferably, the visual inspection device based on the detection of the wire sequence of the flat cable comprises a straightening mechanism; the straightening mechanism comprises a second mounting frame, a straightening roller, a plurality of rollers and a second position adjusting mechanism; the second mounting frame is mounted on the first mounting frame; the straightening roller is rotatably connected to the second mounting frame about an axis thereof; the distance between the bottom of the straightening roller and the top of the conveying belt of the conveying mechanism is greater than the diameter of the wire of the flat cable; the plurality of rollers are arranged on the peripheral surface of the straightening roller and are opposite the gap between adjacent wires of the flat cable; the second position adjusting mechanism is arranged between the first mounting frame and the second mounting frame and is used to adjust the distance between the bottom of the straightening roller and the top of the conveying belt of the conveying mechanism.

[0010] Preferably, the second position adjusting mechanism comprises a screw and a plurality of second guide shafts; the plurality of second guide shafts are arranged on the first mounting frame; the first mounting frame is inserted into the second mounting frame; the screw is rotatably connected to the first mounting frame about an axis thereof; and the screw is threadedly inserted into the second mounting frame; the second guide shafts are arranged in parallel with the axis of the screw.

[0011] Preferably, the straightening mechanism further comprises a pair of third sliding blocks and a second spring; a pair of second sliding grooves are formed in the second mounting frame and are parallel to the axis of the screw in the length direction; the pair of third sliding blocks are slidably connected to the second sliding grooves; the straightening roller is rotatably connected to the third sliding blocks about an axis thereof; the second spring is arranged in the second sliding groove; one end of the second spring is arranged at the bottom of the second mounting frame; and the other end of the second spring is arranged at the bottom of the third sliding block.

[0012] Preferably, the visual inspection device based on the detection of the wire sequence of the flat cable comprises a wind guide mechanism; the wind guide mechanism comprises a winding roller, a wind guide cloth, a first wind guide plate and a second wind guide plate; the winding roller is rotatably connected to a pair of guide plates about an axis thereof; a third spring is arranged at the rotatable connection position between the winding roller and the guide plates; when the winding roller is lost, the third spring is used to drive the winding roller to rotate to reset; one end of the wind guide cloth is wound on the winding roller; the other end of the wind guide cloth is connected to the top of the wind guide cover; one end of the first wind guide plate is connected to the winding roller; the wind guide cloth, the first wind guide plate and the pair of guide plates form a first flow channel;

[0013] the second wind guide plate is arranged between the pair of guide plates and is arranged at the outlet end of the guide plates; the second wind guide plate and the pair of guide plates form a second flow channel.

[0014] Preferably, a plurality of wind holding grooves are formed in the straightening roller at positions corresponding to the distances between adjacent rollers; when the wind force guided by the wind guide cover blows on the position of the straightening roller, the wind holding grooves are matched to allow the straightening roller to rotate about an axis thereof.

[0015] Preferably: the visual detection device based on the detection of the wire sequence of the cable; specifically comprising the following steps:

[0016] Step one, position adjustment: adjust the included angle between the air outlet of the air deflector and the top of the conveying belt of the conveying mechanism through the first position adjustment mechanism, so that the air flow guided out of the air deflector can form a downward inclined blowing force on the cable;

[0017] Step two, cable carding: the air flow generated by the air pump is introduced into the air deflector through the conveying pipe, and is guided out through the multiple nozzles on the air deflector, forming a blowing force on the gap between the adjacent wires of the cable, so as to realize cable carding.

[0018] In summary, the technical effects and advantages of the present application are:

[0019] 1. By setting the cable carding mechanism, the air flow generated by the air pump enters the air deflector through the conveying pipe, and then blows to the wire gap through the nozzles inclined at an acute angle to the conveying direction of the cable, so as to separate the overlapping wires and card the spacing by the air flow impact force; this non-contact carding method effectively solves the problem of wire extrusion and overlapping caused by bending of the cable, makes the wires arranged uniformly, provides a clear wire image for the visual detector, and significantly improves the wire sequence detection accuracy.

[0020] 2. By setting the straightening mechanism, a straightening roller with a needle is arranged downstream of the cable carding mechanism, when the carded cable passes between the straightening roller and the conveying mechanism, the roller applies pressure to the cable to achieve straightening, and the needle is inserted into the wire gap to prevent secondary overlapping; the mechanism cooperates with the cable carding mechanism to further correct the permanent bending of the cable, reduce the difference between the wire arrangement form and the standard template, and enable the visual detection algorithm to more accurately match the wire position, thereby ensuring detection stability.

[0021] 3. By setting the air guide mechanism, part of the air flow guided out of the cable carding mechanism is guided to the straightening mechanism through the winding wheel, the air guide cloth and the air guide plate; the guided air flow not only removes dust in the straightening area to reduce detection interference, but also drives the straightening roller to rotate through the air guide groove, thereby enhancing the effect of separating the wires by the needle; this mechanism realizes the secondary use of air flow resources, simplifies the structure, reduces energy consumption, and improves the integration and energy saving of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0023] Figure 1The whole first perspective view of the structure of the application;

[0024] Figure 2 The whole second perspective view of the structure of the application;

[0025] Figure 3 The perspective view of the wire arranging mechanism of the application;

[0026] Figure 4 The perspective view of the wire arranging mechanism of the application; Figure 3 The perspective view of the wire arranging mechanism of the application;

[0027] Figure 5 The perspective view of the wire arranging mechanism of the application;

[0028] Figure 6 The perspective view of the wire arranging mechanism of the application;

[0029] Figure 7 The perspective view of the wire arranging mechanism of the application;

[0030] Figure 8 The perspective view of the wire arranging mechanism of the application;

[0031] Figure 9 The perspective view of the wire arranging mechanism of the application;

[0032] Figure 10 The perspective view of the wire arranging mechanism of the application;

[0033] Figure 11 The method flow chart of the application.

[0034] In the figure: 1, conveying mechanism; 2, visual detector; 3, wire arranging mechanism; 31, first mounting frame; 32, guide plate; 33, air guide cover; 34, conveying pipe; 35, air pump; 36, adjusting valve; 37, first position adjusting mechanism; 371, rotating wheel; 372, first guide shaft; 373, first sliding block; 374, arc-shaped slot; 375, second sliding block; 376, air hole; 377, nozzle; 378, cover plate; 379, first sliding groove; 38, angle adjusting mechanism; 381, ratchet wheel; 382, mounting block; 383, connecting shaft; 384, limiting block; 385, first spring; 4, straightening mechanism; 41, second mounting frame; 42, straightening roller; 43, rolling needle; 44, second sliding groove; 45, third sliding block; 46, second spring; 47, second position adjusting mechanism; 471, second guide shaft; 472, screw rod; 5, air guiding mechanism; 51, winding wheel; 52, air guiding cloth; 53, first air guiding plate; 54, air guiding groove; 55, second air guiding plate. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1-3 and Figure 5 The illustrated visual inspection device based on cable routing sequence detection includes a visual detector 2 mounted above a conveying mechanism 1, and a cable routing mechanism 3 mounted on the conveying mechanism 1. The cable routing mechanism 3 includes multiple pairs of guide plates 32, an air guide shroud 33, an air pump 35, and a first position adjustment mechanism 37. The multiple pairs of guide plates 32 are mounted above the conveying mechanism 1 via a first mounting bracket 31, with the bottom of each pair of guide plates 32 close to the top of the conveyor belt of the conveying mechanism 1, and the spacing between each pair of guide plates 32 being greater than the width of the cable routing. The air guide shroud 33 is installed between each pair of guide plates 32; and the outlet end of the air guide shroud 33 is inclined at an acute angle to the conveying direction of the conveying mechanism 1; the outlet end of the air guide shroud 33 is provided with a plurality of equally spaced nozzles 377, and the nozzles 377 are directly opposite the gap between adjacent wires in the wiring harness; the air pump 35 is installed on the first mounting bracket 31, and the outlet end of the air pump 35 is connected to the air guide shroud 33 through a conveying pipe 34; the first position adjustment mechanism 37 is provided on the guide plate 32 and is used to adjust the spacing between the plurality of nozzles 377.

[0037] It should be noted that during operation, the wiring is sent to the wiring combing mechanism 3 by the conveying mechanism 1. The airflow generated by the air pump 35 enters the air guide hood 33 through the conveying pipe 34, and then forms a blowing force on the gaps of the wires on the wiring through the nozzle 377. With the limiting of the guide plate 32, the overlapping wires are separated and the spacing is made uniform. Then the combed wiring continues to be conveyed to the visual detector 2 for wire sequence detection.

[0038] The plurality of guide plates 32 ensure the stability of the cable conveying path, the spacing between each pair of guide plates 32 is slightly larger than the width of the cable, which can avoid lateral deviation affecting carding; the acute angle of the air deflector 33 is arranged in precise alignment with the nozzle 377, so that the airflow can efficiently act on the wire gap, maximizing the carding effect; the first position adjusting mechanism 37 can adapt to cables with different wire spacings, avoiding carding failure due to specification differences; the whole adopts non-contact airflow carding, which can minimize the damage to the cable insulation layer, and at the same time make the wire spacing uniform, providing a clear wire arrangement image for the vision detector 2, greatly improving the line sequence detection accuracy, and meeting the needs of high-precision detection scenarios; and the generated obliquely downward blowing force can form a conveying positioning of the cable with the conveying mechanism 1, reducing shaking and improving the vision detection accuracy.

[0039] Please refer to Figures 1-3 The conveying pipe 34 is provided with an adjusting valve 36 for adjusting the air volume discharged by the air deflector 33.

[0040] It should be noted that when the air pump 35 conveys airflow to the air deflector 33, the operator can adjust the opening of the adjusting valve 36 according to the bending degree of the cable and the wire material. If the cable is severely bent and the wires overlap significantly, increase the opening of the adjusting valve 36 to increase the air volume discharged by the air deflector 33 and enhance the airflow separation capability; if the cable is slightly bent or the wire material is soft, reduce the opening of the adjusting valve 36 to reduce the air volume, so as to avoid damage to the wire or disorder of the arrangement caused by excessive airflow. The adjusting valve 36 realizes precise control of the air volume by changing the airflow flow cross section in the conveying pipe 34, ensuring that the ideal carding effect can be achieved under different working conditions, making the carding process more flexible and energy-saving, and further ensuring the integrity of the carded cable and the stability of the subsequent detection accuracy.

[0041] Please refer to Figures 1-3 and Figures 7-9 The first position adjusting mechanism 37 includes a rotating wheel 371, a cover plate 378, a plurality of first guide shafts 372, a first sliding block 373, and a second sliding block 375; the cover plate 378 is covered on the output end of the air deflector 33; the rotating wheel 371 is rotationally connected to the air deflector 33 about its axis, the plurality of first guide shafts 372 are arranged in parallel with the axis of the rotating wheel 371 in the air deflector 33, the plurality of first sliding blocks 373 are slidingly connected to the first guide shafts 372, a plurality of arc-shaped grooves 374 are formed in the rotating wheel 371, the second sliding block 375 is arranged on the first sliding block 373 and slidingly connected to the arc-shaped grooves 374; the nozzle 377 is arranged on the first sliding block 373, the first sliding block 373 is provided with a gas passage hole 376, the inside of the air deflector 33 is in communication with the nozzle 377 through the gas passage hole 376, the cover plate 378 is provided with a first sliding groove 379, the nozzle 377 is arranged in the first sliding groove 379, and the length of the first sliding groove 379 is less than the width of the first sliding block 373.

[0042] It should be noted that when adjusting the distance between the nozzles 377, the rotating wheel 371 is rotated, the arc-shaped groove 374 pushes the first sliding block 373 to move along the first guide shaft 372 synchronously through the second sliding block 375, drives the nozzles 377 to adjust the position in the first sliding groove 379, so that the plurality of nozzles 377 are synchronously close or far away until the distance matches the distance between the wires, at this time the air hole 376 always keeps airflow communication; and then the precise synchronous adjustment of the distance between the nozzles 377 is realized, the cooperation of the rotating wheel 371 and the arc-shaped groove 374 ensures that the distance between the plurality of nozzles 377 changes uniformly, avoiding uneven combing; the double guidance of the first guide shaft 372 and the first sliding groove 379 makes the nozzles 377 move stably and always face the wire gap; the air hole 376 ensures that the airflow is not interrupted during the adjustment process, and the combing can be done while adjusting, improving the efficiency; the structure is suitable for a variety of wire spacing wire arrangement, combined with air volume adjustment, so that the combing mechanism has stronger adaptability to different specifications of wire arrangement, and the combing effect is better, providing reliable guarantee for visual detection accuracy.

[0043] Please refer to Figures 1-4 , the wire combing mechanism 3 further comprises an angle adjusting mechanism 38; the angle adjusting mechanism 38 comprises a ratchet wheel 381, a mounting block 382, a connecting shaft 383, a limiting block 384 and a first spring 385; the ratchet wheel 381 is coaxially fixed to the first mounting frame 31, the mounting block 382 is mounted to the guide plate 32, the connecting shaft 383 is inserted into the mounting block 382, and the axis of the connecting shaft 383 is perpendicular to the axis of the first mounting frame 31, the limiting block 384 is arranged at one end of the connecting shaft 383 and is inserted into the ratchet groove of the ratchet wheel 381, and the first spring 385 is sleeved on the connecting shaft 383, and one end of the first spring 385 is connected with the limiting block 384, and the other end of the first spring 385 is connected with the mounting block 382.

[0044] It should be noted that when adjusting the angle of the air guide cover 33, the connecting shaft 383 is pulled to make the limiting block 384 disengage from the ratchet groove, and the first spring 385 is compressed; the guide plate 32 is rotated to drive the air guide cover 33 to adjust the angle, ensuring that the airflow is inclined downward to blow the wire arrangement; after the adjustment is completed, the connecting shaft 383 is loosened, the first spring 385 pushes the limiting block 384 to reset and be clamped into the ratchet groove, fixing the angle; the cooperation of the ratchet wheel 381 and the limiting block 384 realizes multi-angle stable fixing, avoiding angle deviation during work; the first spring 385 ensures the reliability of angle fixing; through angle adjustment, the airflow blowing direction is more suitable for the bending state of the wire arrangement, maximizing the separation of overlapping wires, while avoiding damage to the wire arrangement due to deviation; the function cooperates with the nozzle 377 distance adjustment and air volume adjustment, so that the combing mechanism can adapt to wire arrangements of different bending degrees and different specifications in all directions, effectively solving the problem of wire extrusion and overlapping, and improving the practicality of the device.

[0045] Please refer to Figures 5-6 and Figure 10The visual detection device based on the flat cable line sequence detection comprises a straightening mechanism 4; the straightening mechanism 4 comprises a second mounting frame 41, a straightening roller 42, a plurality of rollers 43 and a second position adjusting mechanism 47; the second mounting frame 41 is mounted to the first mounting frame 31, the straightening roller 42 is rotationally connected to the second mounting frame 41 about an axis of the straightening roller 42, and the distance between the bottom of the straightening roller 42 and the top of the conveying belt of the conveying mechanism 1 is greater than the diameter of the flat cable wire; the plurality of rollers 43 are arranged on the peripheral surface of the straightening roller 42 and face the gap between adjacent flat cable wires; and the second position adjusting mechanism 47 is arranged between the first mounting frame 31 and the second mounting frame 41 and is used for adjusting the distance between the bottom of the straightening roller 42 and the top of the conveying belt of the conveying mechanism 1.

[0046] It should be noted that, in operation, the combed flat cable passes between the straightening roller 42 and the conveying belt, the straightening roller 42 rotates with the flat cable, the rollers 43 are inserted into the gap between the flat cable wires to separate the flat cable wires to prevent overlapping; the straightening roller 42 applies pressure to the flat cable, and cooperates with the conveying force to straighten the flat cable; according to the thickness of the flat cable, the distance is adjusted by the second position adjusting mechanism 47 to ensure the straightening effect and not to damage the flat cable.

[0047] The straightening mechanism 4 is located downstream of the combing mechanism to avoid secondary bending of the flat cable after combing; the rollers 43 separate the flat cable wires, and the airflow separation of the combing mechanism ensures stable arrangement of the flat cable wires; the second position adjusting mechanism 47 is suitable for flat cables of different thicknesses; the straightening process significantly improves the flatness of the flat cable, the difference between the arrangement of the flat cable wires and the standard template is minimal, the image collected by the visual detector 2 is clearer, the algorithm line sequence matching is more accurate, the detection accuracy is further improved compared with only the combing structure, and high-precision application scenarios are met.

[0048] Please refer to Figures 5-6 It can be understood that the specific mounting structure and mounting method of the second position adjusting mechanism 47 are not limited in the present application, and only one feasible technical solution is provided below; the second position adjusting mechanism 47 comprises a plurality of second guide shafts 471 and a screw rod 472; the plurality of second guide shafts 471 are arranged on the first mounting frame 31, the first mounting frame 31 is inserted into the second mounting frame 41, the screw rod 472 is rotationally connected to the first mounting frame 31 about an axis of the screw rod 472, and the screw rod 472 is threadedly inserted into the second mounting frame 41; the second guide shafts 471 are arranged in parallel with the axis of the screw rod 472.

[0049] It should be noted that when adjusting the distance between the straightening rollers 42, the screw 472 is rotated, and due to the threaded connection with the limiting of the second guide shaft 471, the rotation of the screw 472 is converted into the vertical movement of the second mounting frame 41 along the second guide shaft 471, which drives the straightening rollers 42 to move synchronously, changes the distance with the top of the conveying belt, and the second guide shaft 471 ensures that the straightening rollers 42 do not deviate laterally, and the rollers 43 are always opposite to the wire gap; the threaded transmission precision of the screw 472 is high, which can adapt the distance to different thicknesses of the wire harness and avoid insufficient straightening or damage to the wire harness; the second guide shaft 471 ensures the stable movement of the second mounting frame 41, and the rollers 43 are always opposite to the wire gap; the structure is convenient to operate, cooperates with the adjustment function of the first position adjusting mechanism 37, makes the device more comprehensive in adaptability to different specifications of the wire harness, and stabilizes the straightening effect, which provides a better wire harness state for visual detection and ensures that the detection precision is always high.

[0050] Please refer to Figure 10 , the straightening mechanism 4 further comprises a pair of third sliding blocks 45 and a second spring 46; the second mounting frame 41 is provided with a pair of second sliding grooves 44, and the length direction of the second sliding grooves 44 is parallel to the axis of the screw 472; a pair of third sliding blocks 45 are respectively connected to the second sliding grooves 44 in a sliding manner, the straightening rollers 42 are connected to the third sliding blocks 45 in a rotating manner around their axes, and the second spring 46 is arranged in the second sliding groove 44, and one end of the second spring 46 is arranged at the bottom of the second mounting frame 41, and the other end of the second spring 46 is arranged at the bottom of the third sliding block 45.

[0051] It should be noted that when the wire harness passes through, an upward force is applied to the straightening rollers 42, which drives the third sliding blocks 45 to move upward, the second spring 46 is compressed and generates a downward reaction force, so that the straightening rollers 42 are always in close contact with the wire harness; if the thickness of the wire harness fluctuates, the third sliding blocks 45 move adaptively, and the elastic force of the second spring 46 changes correspondingly, so that the straightening pressure is always appropriate.

[0052] Please refer to Figures 5-6 , the visual detection device based on the wire harness sequence detection comprises a wind guide mechanism 5; the wind guide mechanism 5 comprises a winding wheel 51, a wind guide cloth 52, a first wind guide plate 53 and a second wind guide plate 55; the winding wheel 51 is connected to the pair of guide plates 32 in a rotating manner around its axis, and a third spring is arranged between the winding wheel 51 and the guide plates 32; when the winding wheel 51 loses the limit, the third spring is used to drive the winding wheel 51 to rotate and reset; one end of the wind guide cloth 52 is wound on the winding wheel 51, and the other end of the wind guide cloth 52 is connected to the top of the wind cover 33; one end of the first wind guide plate 53 is connected to the winding wheel 51; the wind guide cloth 52, the first wind guide plate 53 and the pair of guide plates 32 form a first flow channel; the second wind guide plate 55 is arranged between the pair of guide plates 32, and the second wind guide plate 55 is arranged at the outlet end of the guide plates 32; the second wind guide plate 55 and the pair of guide plates 32 form a second flow channel.

[0053] Need to explain, work, air deflector 33 export part of the airflow through the first guide channel to the straightening mechanism 4; air deflector cloth 52 movement, the corresponding rotation of the winding wheel 51, the third spring keeps air deflector cloth 52 tension, ensure the guide channel sealing, guide to the straightening mechanism 4 of the airflow to remove dust and auxiliary straightening roller 42 rotation.

[0054] The first guide channel collects excess air flow, avoids waste, reduces the energy consumption of air pump 35; the air flow removes the dust in the straightening area, prevents affecting the detection accuracy, the winding wheel 51 and the third spring ensure that the air deflector cloth 52 is tensioned, and the guide effect is guaranteed; and through the first guide channel, the airflow downward blowing is formed at the top of the wire, so that the wire maintains the straightening state, and the visual detection is not affected.

[0055] Please refer to Figure 6 and Figure 10 , a plurality of air pocket grooves 54 are arranged at positions corresponding to the intervals between adjacent rollers 43 on the straightening roller 42; when the air deflector 33 blows to the position of the straightening roller 42, the air pocket groove 54 is matched to allow the straightening roller 42 to rotate around its axis.

[0056] Need to explain, when the air flow guided by the air deflector mechanism 5 blows to the straightening roller 42, it enters the air pocket groove 54 and produces a force on the groove wall. The force forms a driving torque in the tangential direction of the straightening roller 42, driving the straightening roller 42 to rotate; the airflow driving makes the rotating speed of the straightening roller 42 increase and rotate stably, the rollers 43 are more stably inserted into the wire gap, the separation and guiding effect is enhanced, and the wire offset is avoided.

[0057] The air pocket groove 54 reduces the dependence of the straightening roller 42 on the wire conveying force, avoids rotation jamming; the airflow driving makes the rotation more stable, the separation effect of the rollers 43 is more reliable, combined with combing and pressure regulation, ensures the flatness of the wire and the uniformity of the wire; without additional driving components, the structure is simplified, the cost and energy consumption are reduced, the straightening efficiency is improved, the device performance is more optimal, and the problem of low detection accuracy caused by wire bending is completely solved.

[0058] Embodiment 2: The technical scheme of this embodiment is different from that of embodiment 1, please refer to Figures 1-11 , the above-mentioned visual detection device based on wire sequence detection; specifically comprising the following steps:

[0059] Step one, position adjustment: adjust the included angle between the guide exit of the air deflector 33 and the top of the conveying belt of the conveying mechanism 1 through the first position adjustment mechanism 37, so that the air flow guided by the air deflector 33 can form a downward blowing force on the wire;

[0060] Step two, wire combing; the air flow generated by the air pump 35 is introduced into the air deflector 33 through the conveying pipe 34, and is discharged through the multiple nozzles 377 on the air deflector 33, so as to form the blowing force for the gaps between the adjacent wires of the wire harness, so as to realize the wire combing.

[0061] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A visual inspection apparatus based on wire sequence detection, comprising a visual inspection device (2) arranged above a transport mechanism (1), characterized in that: The conveying mechanism (1) is provided with a cable arranging and combing mechanism (3); the cable arranging and combing mechanism (3) comprises: a plurality of pairs of guide plates (32) which are installed above the conveying mechanism (1) by a first mounting frame (31) and the bottom of each pair of guide plates (32) is close to the top of the conveying belt of the conveying mechanism (1), and the spacing between each pair of guide plates (32) is greater than the width of the cable; an air deflector (33) which is installed between each pair of guide plates (32) and the outlet end of the air deflector (33) is obliquely arranged at an acute angle with the conveying direction of the conveying mechanism (1), and the output end of the air deflector (33) is provided with a plurality of equally spaced nozzles (377) which are opposite to the gap between adjacent wires in the cable; an air pump (35) which is installed on the first mounting frame (31) and the output end of the air pump (35) is connected with the air deflector (33) through a conveying pipe (34); and a first position adjusting mechanism (37) which is arranged on the guide plate (32) and is used for adjusting the spacing between the nozzles (377).

2. The visual inspection apparatus based on wire sequence detection of claim 1, wherein: The conveying pipe (34) is provided with an adjusting valve (36) which is used for adjusting the air volume discharged by the air deflector (33).

3. The visual inspection apparatus based on wire sequence detection of claim 1, wherein: The first position adjusting mechanism (37) comprises a rotating wheel (371), a cover plate (378), a plurality of first guide shafts (372), a first sliding block (373) and a second sliding block (375); the cover plate (378) covers the output end of the air deflector (33); the rotating wheel (371) is rotatably connected in the air deflector (33) along its axis, a plurality of first guide shafts (372) are arranged in the air deflector (33) in parallel with the axis of the rotating wheel (371), a plurality of first sliding blocks (373) are slidably connected with the first guide shafts (372), a plurality of arc-shaped grooves (374) are formed in the rotating wheel (371), the second sliding block (375) is arranged on the first sliding block (373) and slidably connected with the arc-shaped grooves (374); the nozzles (377) are arranged on the first sliding block (373), air holes (376) are formed in the first sliding block (373), the inside of the air deflector (33) is communicated with the nozzles (377) through the air holes (376), a first sliding groove (379) is formed in the cover plate (378), the nozzles (377) are arranged in the first sliding groove (379), and the length of the first sliding groove (379) is less than the width of the first sliding block (373).

4. The visual inspection apparatus based on wire sequence detection of claim 1, wherein: The wire arranging mechanism (3) further comprises an angle adjusting mechanism (38); the angle adjusting mechanism (38) comprises a ratchet wheel (381), a mounting block (382), a connecting shaft (383), a limiting block (384) and a first spring (385); the ratchet wheel (381) is coaxially fixed to the first mounting frame (31), the mounting block (382) is mounted to the guide plate (32), the connecting shaft (383) is inserted into the mounting block (382), the axis of the connecting shaft (383) is perpendicular to the axis of the first mounting frame (31), the limiting block (384) is arranged at one end of the connecting shaft (383) and is inserted into the ratchet groove of the ratchet wheel (381), and the first spring (385) is sleeved on the connecting shaft (383) and one end of the first spring (385) is connected with the limiting block (384) and the other end of the first spring (385) is connected with the mounting block (382).

5. The vision inspection apparatus based on wire sequence detection of claim 1, wherein: The visual detection device based on the wire sequence detection comprises a straightening mechanism (4); the straightening mechanism (4) comprises a second mounting frame (41), a straightening roller (42), a plurality of rollers (43) and a second position adjusting mechanism (47); the second mounting frame (41) is mounted to the first mounting frame (31), the straightening roller (42) is rotatably connected to the second mounting frame (41) about its axis, and the distance between the bottom of the straightening roller (42) and the top of the conveying belt of the conveying mechanism (1) is greater than the diameter of the wire of the wire; a plurality of rollers (43) are arranged on the peripheral surface of the straightening roller (42), and the rollers (43) are opposite to the gaps between adjacent wires in the wire; the second position adjusting mechanism (47) is arranged between the first mounting frame (31) and the second mounting frame (41) and is used for adjusting the distance between the bottom of the straightening roller (42) and the top of the conveying belt of the conveying mechanism (1).

6. The vision inspection apparatus based on wire sequence detection of claim 5, wherein: The second position adjusting mechanism (47) comprises a screw rod (472) and a plurality of second guide shafts (471); a plurality of second guide shafts (471) are arranged on the first mounting frame (31), and the first mounting frame (31) is inserted into the second mounting frame (41); the screw rod (472) is rotatably connected to the first mounting frame (31) about its axis, and the screw rod (472) is threadedly inserted into the second mounting frame (41); the second guide shafts (471) are arranged in parallel with the axis of the screw rod (472).

7. The vision inspection apparatus based on wire sequence detection of claim 5, wherein: The straightening mechanism (4) further comprises a pair of third sliding blocks (45) and a second spring (46); a pair of second sliding grooves (44) are formed in the second mounting frame (41), and the length direction of the second sliding grooves (44) is parallel to the axis of the screw rod (472); a pair of third sliding blocks (45) are respectively slidably connected to the second sliding grooves (44), the straightening roller (42) is rotatably connected to the third sliding blocks (45) about its axis, the second spring (46) is arranged in the second sliding groove (44), one end of the second spring (46) is connected with the bottom of the second mounting frame (41), and the other end of the second spring (46) is connected with the bottom of the third sliding block (45).

8. The vision inspection apparatus based on wire sequence detection of claim 5, wherein: The visual detection device based on the detection of the wire sequence of the wire arrangement comprises a wind guide mechanism (5); the wind guide mechanism (5) is arranged between a straightening mechanism (4) and a wire arrangement combing mechanism (3); the wind guide mechanism (5) comprises a winding wheel (51), a wind guide cloth (52), a first wind guide plate (53) and a second wind guide plate (55); the winding wheel (51) is rotatably connected between a pair of guide plates (32) about an axis of the winding wheel (51), and a third spring is arranged at a rotatable connection position between the winding wheel (51) and the guide plates (32); when the winding wheel (51) is out of limit, the third spring is used to drive the winding wheel (51) to rotate back to position; one end of the wind guide cloth (52) is wound on the winding wheel (51), and the other end of the wind guide cloth (52) is connected with the top of a wind guide cover (33); one end of the first wind guide plate (53) is connected with the winding wheel (51); the wind guide cloth (52), the first wind guide plate (53) and the pair of guide plates (32) enclose a first wind guide channel; The second wind guide plate (55) is arranged between the pair of guide plates (32), and the second wind guide plate (55) is arranged at a leading end of the guide plates (32); the second wind guide plate (55) and the pair of guide plates (32) enclose a second wind guide channel.

9. The vision inspection apparatus based on wire sequence detection of claim 8, wherein: A plurality of wind holding grooves (54) are arranged on the straightening roller (42) at positions corresponding to the spacing between adjacent rollers (43); when the wind force guided out of the wind guide cover (33) blows on the position of the straightening roller (42), the wind holding grooves (54) are matched to allow the straightening roller (42) to rotate about an axis thereof.

10. A visual inspection method based on flat cable wire sequence detection, characterized in that: The visual detection device based on the detection of the wire sequence of the wire arrangement comprises a wind guide mechanism (5); the wind guide mechanism (5) is arranged between a straightening mechanism (4) and a wire arrangement combing mechanism (3); the wind guide mechanism (5) comprises a winding wheel (51), a wind guide cloth (52), a first wind guide plate (53) and a second wind guide plate (55); the winding wheel (51) is rotatably connected between a pair of guide plates (32) about an axis of the winding wheel (51), and a third spring is arranged at a rotatable connection position between the winding wheel (51) and the guide plates (32); when the winding wheel (51) is out of limit, the third spring is used to drive the winding wheel (51) to rotate back to position; one end of the wind guide cloth (52) is wound on the winding wheel (51), and the other end of the wind guide cloth (52) is connected with the top of a wind guide cover (33); one end of the first wind guide plate (53) is connected with the winding wheel (51); the wind guide cloth (52), the first wind guide plate (53) and the pair of guide plates (32) enclose a first wind guide channel; The second wind guide plate (55) is arranged between the pair of guide plates (32), and the second wind guide plate (55) is arranged at a leading end of the guide plates (32); the second wind guide plate (55) and the pair of guide plates (32) enclose a second wind guide channel. A plurality of wind holding grooves (54) are arranged on the straightening roller (42) at positions corresponding to the spacing between adjacent rollers (43); when the wind force guided out of the wind guide cover (33) blows on the position of the straightening roller (42), the wind holding grooves (54) are matched to allow the straightening roller (42) to rotate about an axis thereof.

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