Surface flaw detection equipment based on machine vision and application in high-frequency wire harness

Abstract

The invention discloses surface flaw detection equipment based on machine vision and application in a high-frequency wire harness, and relates to the technical field of machine vision detection.The surface flaw detection equipment comprises a base, a detection frame is fixedly connected to the base, and two machine vision detection mechanisms are symmetrically distributed on the inner side wall of the detection frame; the inner ring surfaces, located at the top and the bottom, of the detection frame are fixedly connected with separation sheets. According to the surface flaw detection equipment based on machine vision and the application of the high-frequency wire harness, in the transmission process, the high-frequency wire harness flows to the partition ring frame and moves under the assistance of the flow guide rollers, preliminary buffering of the high-frequency wire harness is achieved, then the high-frequency wire harness passes through the damping sleeve, and the high-frequency wire harness is subjected to surface flaw detection; the damping air bag layer is matched with each damping spring rod to realize first-stage damping and second-stage damping of the high-frequency wiring harness, so that the high-frequency wiring harness moving to the machine vision detection mechanism is ensured to be in a stable state, the detection result deviation caused by vibration is avoided, and the accuracy of the machine vision detection result is further improved.

Description

Technical Field

[0001] This invention relates to the field of machine vision inspection technology, and in particular to surface defect detection equipment based on machine vision and its application in high-frequency wire harnesses. Background Technology

[0002] Machine vision inspection refers to the use of hardware and algorithms such as cameras, lenses, light sources and image processing software to simulate human visual functions and perform non-contact measurement, identification, positioning and inspection of target objects. In the manufacturing process of high-frequency wire harnesses, machine vision inspection agencies are usually used to inspect their surface defects.

[0003] Existing machine vision-based surface defect detection equipment, when performing surface defect detection on high-frequency wire harnesses, will cause the high-frequency wire harnesses to be in a low-frequency vibration state during transportation, which will reduce the contrast of minor defects, such as fine scratches, slight dents, or even completely "disappear" in the blurred background, leading to missed detection and thus reducing the accuracy of the surface defect detection results of high-frequency wire harnesses. Summary of the Invention

[0004] This invention discloses a surface defect detection device based on machine vision, aiming to solve the technical problem that existing machine vision-based surface defect detection devices, during the detection of surface defects in high-frequency wire harnesses, suffer from reduced contrast due to the low-frequency vibration state of the high-frequency wire harness during transportation. This causes minor defects, such as fine scratches, slight dents, or even complete "disappearance" in the blurred background, leading to missed detections and thus reducing the accuracy of surface defect detection results for high-frequency wire harnesses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A machine vision-based surface defect detection device includes a base on which a detection frame is fixedly connected. Two machine vision detection mechanisms are symmetrically distributed on the inner wall of the detection frame. Spacing plates are fixedly connected to the inner ring surfaces of the top and bottom of the detection frame. Two mounting rods are fixedly connected to one side of the base. One end of each mounting rod is equipped with a damping mechanism. The damping mechanism includes a damping ring frame and a damping sleeve. The damping ring frame is fixedly connected to one end of each of the two mounting rods. A mounting ring frame is fixedly connected to the outer wall of the damping sleeve, and this mounting ring frame is fixedly connected to the same side of the two spacing plates. A flow guide is fixedly connected to the end of the damping sleeve facing the damping ring frame. The same damping airbag layer is fixedly connected to the inner wall of the damping sleeve near both ends. Damping spring rods are fixedly connected at equal intervals to the inner wall of the damping sleeve outside the damping airbag layer. A single-point pressure ball is fixedly connected to one end of each damping spring rod. Flow guide rollers are connected at equal intervals to the inner wall of the damping ring frame via bearings.

[0006] In a preferred embodiment, the partition ring frame is fixedly connected to side rods on both sides near the guide shroud, and tension adjustment rails are fixedly connected to the opposite ends of the two side rods. Adjustment sliders are slidably connected inside the two tension adjustment rails. The same shaft frame is fixedly connected to the opposite side of the two adjustment sliders. The same connecting shaft is connected to the inner walls of both sides of the shaft frame through bearings. Tension adjustment rollers are fixedly connected to the outer wall of the connecting shaft.

[0007] In a preferred embodiment, the tops of the two tension adjustment rails are fixedly connected to the same upper frame, and the bottom of the upper frame is fixedly connected to a hydraulic cylinder. The output end of the hydraulic cylinder is fixedly connected to a pressure plate. The top of the shaft frame has an installation groove, and the bottom inner wall of the installation groove is fixedly connected to a pressure sensor. Telescopic connecting rods are distributed in a ring around the bottom inner wall of the installation groove, which is located around the pressure sensor. The pressure plate is fixedly connected to the top of the multiple telescopic connecting rods.

[0008] In a preferred embodiment, real-time marking mechanisms are provided on both sides of the upper partition plate, and the real-time marking mechanism includes a limiting rail, the limiting rail is fixedly connected to one side of the partition plate, the limiting rail is slidably connected to a limiting slider, and a tension spring is fixedly connected to one side of the limiting slider inside the limiting rail, with one end of the tension spring fixedly connected to the inner wall of one side of the limiting rail.

[0009] With a real-time marking mechanism, when the machine vision inspection mechanism detects surface defects in each segment of the high-frequency wire harness, if a defect appears on the surface of the high-frequency wire harness, electromagnet one is de-energized, separating from iron block two. Electromagnet two is also de-energized, separating from iron block one. This pulls spring two, causing the marking pen to pop out. The marking pen contacts and presses against the high-frequency wire harness, and the limiting slider deflects downwards in the limiting rail, thus marking the range of defect points on the high-frequency wire harness. This facilitates subsequent defect handling by staff.

[0010] In a preferred embodiment, the limiting rail is fixedly connected to the same external frame on both sides above the limiting slider, and an electromagnet is fixedly connected to the bottom of the external frame. A fixing block is fixedly connected to the side of the limiting slider facing the electromagnet, and an iron block is fixedly connected to the top of the fixing block. The iron block is in contact with the electromagnet.

[0011] In a preferred embodiment, the limiting slider has a through operating hole at the center, and an inner ring is fixedly connected to the inner wall of the operating hole. Pull springs are fixedly connected at equal intervals on the side of the inner ring facing the center point of the limiting rail. One end of each pull spring is fixedly connected to the same outer ring. A marker pen is fixedly connected to the inner side of the outer ring. An iron block is fixedly connected to the side of the outer ring near each pull spring. A fixing rod is fixedly connected to the side of the inner ring facing each iron block. An electromagnet is fixedly connected to the bottom end of the fixing rod, and the electromagnet is in contact with the iron block.

[0012] In a preferred embodiment, the two spacers are fixedly connected to the same mounting ring frame two on the side away from the shock-absorbing sleeve, and a guide pipe is fixedly connected to the inner wall of the mounting ring frame two. The guide pipe is connected to a rotating shaft at equal intervals via bearings on the inner wall near the bottom. An auxiliary roller is fixedly connected to the outer wall of each rotating shaft.

[0013] In a preferred embodiment, a support plate is fixedly connected to one side of the base, and a lifting rod is fixedly connected to the top of the support plate away from the detection frame. A fixing ring is fixedly connected to the top of the lifting rod, and a surface cleaning mechanism is provided on the fixing ring. The surface cleaning mechanism includes a cleaning sleeve, which is fixedly connected to the fixing ring. A collection box is fixedly connected to the top of the support plate near the lifting rod, and an adsorption pump is fixedly connected to the top of the collection box. The delivery end of the adsorption pump is connected to the inside of the collection box through a pipe, and the collection end of the adsorption pump is connected to the collection cavity opened inside the cleaning sleeve through a pipe.

[0014] Equipped with a surface cleaning mechanism, the high-frequency wire harness passes through a cleaning sleeve before being conveyed to the partition ring frame. The drive motor is activated, causing the active rotating gear to rotate, which in turn causes the driven rotating gear to rotate. The annular slide plate rotates in the annular guide rail, causing the bristles on each rotating brush plate to clean the high-frequency wire harness located inside the cleaning sleeve. During the cleaning process, the adsorption pump is activated, and the adsorption pump collects the dust that falls off the high-frequency wire harness through various collection holes inside the cleaning sleeve, completing the cleaning of the high-frequency wire harness and preventing dust from adhering to the high-frequency wire harness and causing errors in the machine vision inspection results.

[0015] In a preferred embodiment, the inner wall of the cleaning sleeve has collection holes at equal intervals, and an annular guide rail is fixedly connected to the side of the cleaning sleeve away from the detection frame. An annular slide plate is slidably connected inside the annular guide rail. Rotating brush plates are fixedly connected at equal intervals to the side of the annular slide plate facing the inside of the cleaning sleeve. The side of the rotating brush plate facing the center line of the cleaning sleeve has bristles. A driven rotating tooth is fixedly connected to the outer wall of the annular slide plate. A motor frame is fixedly connected to one side of the annular guide rail. A drive motor is fixedly connected to one side of the motor frame. The output shaft of the drive motor is fixedly connected to a drive shaft through a coupling. An active rotating tooth is fixedly connected to the outer wall of the drive shaft. The active rotating tooth and the driven rotating tooth mesh with each other. A connecting rod is fixedly connected to the lower outer wall of the cleaning sleeve. A pointing ring cover is fixedly connected to the connecting rod.

[0016] An application of the machine vision-based surface defect detection device described above in high-frequency wire harnesses.

[0017] As can be seen from the above, the surface defect detection equipment based on machine vision provided by the present invention has the technical effect of separating the detection part and the undetected part by means of a partition and shock absorption mechanism when detecting surface defects in each segment of a high-frequency wire harness. This prevents the high-frequency wire harness in the undetected part from transmitting vibration to the high-frequency wire harness in the detection segment. During the transmission process, the high-frequency wire harness flows to the partition ring frame and moves with the assistance of each guide roller, realizing the initial buffering of the high-frequency wire harness. Then it passes through the shock absorption sleeve. The shock absorption airbag layer, together with each shock absorption spring rod, realizes the first-stage shock absorption and the second-stage shock absorption of the high-frequency wire harness, ensuring that the high-frequency wire harness moving to the machine vision detection mechanism is in a stable state, avoiding deviations in the detection results caused by vibration, and thus improving the accuracy of the machine vision detection results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the machine vision-based surface defect detection device proposed in this invention.

[0019] Figure 2 This is a front view of the overall structure of the surface defect detection device based on machine vision proposed in this invention.

[0020] Figure 3 This is a schematic diagram of the isolation and vibration damping mechanism of the machine vision-based surface defect detection device proposed in this invention.

[0021] Figure 4 for Figure 3 Cross-sectional view of the combined structure of the central partition ring frame and the shock-absorbing sleeve.

[0022] Figure 5 This is a structurally exploded view of the pressure plate and pressure sensor of the machine vision-based surface defect detection device proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the combined structure of the guide tube and real-time marking mechanism of the surface defect detection device based on machine vision proposed in this invention.

[0024] Figure 7 This is a schematic diagram of the real-time marking mechanism of the machine vision-based surface defect detection device proposed in this invention.

[0025] Figure 8 for Figure 7 Cross-sectional view of the middle limit slider structure.

[0026] Figure 9 This is a schematic diagram of the surface cleaning mechanism of the machine vision-based surface defect detection device proposed in this invention.

[0027] Figure 10 for Figure 9 Cross-sectional view of the combined structure of the cleaning sleeve and the annular guide rail.

[0028] In the diagram: 1. Base; 2. Detection frame; 3. Guide tube; 4. Separator; 5. Machine vision inspection mechanism; 6. Separation and shock absorption mechanism; 601. Separation ring frame; 602. Guide roller; 603. Side rod; 604. Tension adjustment rail; 605. Guide shroud; 606. Mounting ring frame one; 607. Shock-absorbing airbag layer; 608. Shock-absorbing sleeve; 609. Tension adjustment roller; 610. Upper frame; 611. Shock-absorbing spring rod; 612. Single-point pressure ball; 613. Hydraulic cylinder one; 614. Pressure plate; 615. Connecting shaft; 616. Shaft frame; 617. Adjusting slider; 618. Telescopic connecting rod; 619. Pressure sensor; 7. Surface cleaning mechanism; 701. Cleaning sleeve; 702. Motor frame; 703. Drive motor; 704. Active rotating gear; 705. Drive shaft; 706. 707. Pointing ring cover; 708. Driven rotating gear; 709. Connecting rod; 710. Brush bristles; 711. Rotating brush plate; 712. Circular guide rail; 713. Circular sliding plate; 714. Collection hole; 8. Lifting rod; 9. Support plate; 10. Collection box; 11. Mounting rod; 12. Adsorption pump; 13. Real-time marking mechanism; 1301. Limiting rail; 1302. Limiting slider; 1303. Marking pen; 1304. Electromagnet one; 1305. External frame; 1306. Pull spring one; 1307. Fixing rod; 1308. Electromagnet two; 1309. Iron block one; 1310. Pull spring two; 1311. External ring; 1312. Internal ring; 1313. Fixing block; 1314. Iron block two; 14. Mounting ring frame two; 15. Rotating shaft; 16. Auxiliary roller; 17. Fixing ring. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] The machine vision-based surface defect detection device disclosed in this invention is mainly applied to scenarios where existing machine vision-based surface defect detection devices are used to detect surface defects in high-frequency wire harnesses. During the transportation process, the high-frequency wire harness is in a low-frequency vibration state, which will cause the contrast of minor defects to decrease, such as fine scratches, slight dents, or even completely "disappear" in the blurred background, leading to missed detection and thus reducing the accuracy of the surface defect detection results of high-frequency wire harnesses.

[0031] Reference Figures 1-10A surface defect detection device based on machine vision includes a base 1, on which a detection frame 2 is fixedly connected. Two machine vision detection mechanisms 5 are symmetrically distributed on the inner wall of the detection frame 2. Spacing plates 4 are fixedly connected to the inner ring surfaces at the top and bottom of the detection frame 2. Two mounting rods 11 are fixedly connected to one side of the base 1. A damping mechanism 6 is provided at one end of each mounting rod 11. The damping mechanism 6 includes a partition ring frame 601 and a damping sleeve 608. The partition ring frame 601 is fixedly connected to one end of the two mounting rods 11, and the outer wall of the damping sleeve 608 is fixedly connected to... A mounting ring frame 606 is attached, which is fixedly connected to the same side of the two partition plates 4. A guide shroud 605 is fixedly connected to one end of the shock-absorbing sleeve 608 facing the partition ring frame 601. The same shock-absorbing airbag layer 607 is fixedly connected to the inner wall of the shock-absorbing sleeve 608 near both ends. Shock-absorbing spring rods 611 are fixedly connected at equal intervals to the inner wall of the shock-absorbing sleeve 608 outside the shock-absorbing airbag layer 607. A single-point pressure ball 612 is fixedly connected to one end of each shock-absorbing spring rod 611. Guide rollers 602 are connected at equal intervals to the inner wall of the partition ring frame 601 through bearings.

[0032] In specific application scenarios, when inspecting surface defects in each segment of a high-frequency wire harness, the detection and undetected sections are separated by the isolation and damping mechanism 6. This prevents the high-frequency wire harness in the undetected section from transmitting vibrations to the high-frequency wire harness in the detection section. During transmission, the high-frequency wire harness flows onto the isolation ring frame 601 and moves with the assistance of various guide rollers 602, achieving initial buffering of the high-frequency wire harness. Then, it passes through the damping sleeve 608. The damping airbag layer 607, together with various damping spring rods 611, achieves first-stage and second-stage damping of the high-frequency wire harness, ensuring that the high-frequency wire harness moving to the machine vision inspection mechanism 5 is in a stable state, avoiding deviations in the inspection results caused by vibration, and thus improving the accuracy of the machine vision inspection results.

[0033] Specifically, as the high-frequency wire harness moves from the partition ring 601 to the shock-absorbing sleeve 608, the adjusting hydraulic cylinder 613 drives the tension adjusting roller 609 to squeeze the high-frequency wire harness. The pressure sensor 619 monitors the pressure applied by the hydraulic cylinder 613 in real time. The control system indirectly calculates or adjusts the tension of the high-frequency wire harness based on the pressure value to keep it within a controllable range. This ensures that the high-frequency wire harness moves to the machine vision inspection mechanism 5 in a stable state, preventing errors in the final inspection result caused by the reciprocating swing of the high-frequency wire harness.

[0034] Reference Figures 1-5In a preferred embodiment, the partition ring frame 601 is fixedly connected to two side rods 603 on both sides near the guide shroud 605, and tension adjustment rails 604 are fixedly connected to the opposite ends of the two side rods 603. Adjustment sliders 617 are slidably connected inside the two tension adjustment rails 604. The same shaft frame 616 is fixedly connected to the opposite side of the two adjustment sliders 617. The same connecting shaft 615 is connected to the inner walls of both sides of the shaft frame 616 through bearings. Tension adjustment rollers 609 are fixedly connected to the outer wall of the connecting shaft 615.

[0035] Reference Figure 3 and Figure 5 In a preferred embodiment, the tops of the two tension adjustment rails 604 are fixedly connected to the same upper frame 610, and the bottom of the upper frame 610 is fixedly connected to a hydraulic cylinder 613. The output end of the hydraulic cylinder 613 is fixedly connected to a pressure plate 614. The top of the shaft frame 616 has a mounting groove, and the bottom inner wall of the mounting groove is fixedly connected to a pressure sensor 619. The bottom inner wall of the mounting groove, located around the pressure sensor 619, has telescopic connecting rods 618 distributed in a ring. The pressure plate 614 is fixedly connected to the top of the multiple telescopic connecting rods 618.

[0036] Reference Figure 1 , Figure 6 , Figure 7 and Figure 8 In a preferred embodiment, real-time marking mechanisms 13 are provided on both sides of the upper partition plate 4, and the real-time marking mechanism 13 includes a limiting rail 1301. The limiting rail 1301 is fixedly connected to one side of the partition plate 4. A limiting slider 1302 is slidably connected inside the limiting rail 1301. A tension spring 1306 is fixedly connected to one side of the limiting slider 1302 inside the limiting rail 1301. One end of the tension spring 1306 is fixedly connected to the inner wall of one side of the limiting rail 1301.

[0037] Specifically, when the machine vision inspection unit 5 is inspecting the surface defects of each high-frequency wire harness, if a defect appears on the surface of the high-frequency wire harness, electromagnet 1304 is de-energized, electromagnet 1304 separates from iron block 2 1314, electromagnet 2 1308 is de-energized, electromagnet 2 1308 separates from iron block 1 1309, then pull spring 2 1310 drives the marker pen 1303 to pop out, the marker pen 1303 contacts and squeezes the high-frequency wire harness, and the limiting slider 1302 deflects downward in the limiting rail 1301, thus driving the marker pen 1303 to mark the range of the high-frequency wire harness defect points, which is convenient for subsequent staff to handle the defects.

[0038] It should be noted that after the defect marking is completed, when electromagnet 1304 and electromagnet 2 1308 are energized again, the marking pen 1303 will be reset, and the spring 1306 will be pulled to reset the limit slider 1302, thus ensuring that it can be reused.

[0039] Reference Figure 7 and Figure 8 In a preferred embodiment, the limiting rail 1301 is fixedly connected to the same external frame 1305 on both sides above the limiting slider 1302, and an electromagnet 1304 is fixedly connected to the bottom of the external frame 1305. A fixing block 1313 is fixedly connected to the side of the limiting slider 1302 facing the electromagnet 1304, and an iron block 2 1314 is fixedly connected to the top of the fixing block 1313. The iron block 2 1314 is in contact with the electromagnet 1304.

[0040] Reference Figure 7 and Figure 8 In a preferred embodiment, the limiting slider 1302 has a through operating hole in the middle, and an inner ring 1312 is fixedly connected to the inner wall of the operating hole. Pull springs 1310 are fixedly connected at equal intervals on the side of the inner ring 1312 facing the center point of the limiting rail 1301. One end of the multiple pull springs 1310 is fixedly connected to the same outer ring 1311. A marker pen 1303 is fixedly connected to the inner side of the outer ring 1311. An iron block 1309 is fixedly connected to the side of the outer ring 1311 near each pull spring 1310. A fixing rod 1307 is fixedly connected to the side of the inner ring 1312 facing each iron block 1309. An electromagnet 1308 is fixedly connected to the bottom end of the fixing rod 1307. The electromagnet 1308 is in contact with the iron block 1309.

[0041] Reference Figure 6 In a preferred embodiment, the two spacers 4 are fixedly connected to the same mounting ring frame 14 on the side away from the shock-absorbing sleeve 608, and the inner wall of the mounting ring frame 14 is fixedly connected to a guide pipe 3. The guide pipe 3 is connected to a rotating shaft 15 at equal distances via bearings on the inner wall near the bottom. Each rotating shaft 15 is fixedly connected to an auxiliary roller 16 on the outer wall of its outer side.

[0042] Reference Figure 1 , Figure 2 , Figure 9 and Figure 10In a preferred embodiment, a support plate 9 is fixedly connected to one side of the base 1, and a lifting rod 8 is fixedly connected to the top of the support plate 9 away from the detection frame 2. A fixing ring 17 is fixedly connected to the top of the lifting rod 8. A surface cleaning mechanism 7 is provided on the fixing ring 17. The surface cleaning mechanism 7 includes a cleaning sleeve 701, which is fixedly connected to the fixing ring 17. A collection box 10 is fixedly connected to the top of the support plate 9 near the lifting rod 8. An adsorption pump 12 is fixedly connected to the top of the collection box 10. The delivery end of the adsorption pump 12 is connected to the inside of the collection box 10 through a pipe, and the collection end of the adsorption pump 12 is connected to the collection cavity opened inside the cleaning sleeve 701 through a pipe.

[0043] Reference Figure 9 and Figure 10 In a preferred embodiment, the inner wall of the cleaning sleeve 701 has collection holes 713 at equal intervals, and an annular guide rail 711 is fixedly connected to the side of the cleaning sleeve 701 away from the detection frame 2. An annular slide plate 712 is slidably connected inside the annular guide rail 711. A rotating brush plate 710 is fixedly connected at equal intervals to the side of the annular slide plate 712 facing the inside of the cleaning sleeve 701. The rotating brush plate 710 has bristles 709 on the side facing the center line of the cleaning sleeve 701. The outer wall of the annular slide plate 712 is fixedly connected to... There is a driven rotating gear 707. A motor frame 702 is fixedly connected to one side of the annular guide rail 711. A drive motor 703 is fixedly connected to one side of the motor frame 702. The output shaft of the drive motor 703 is fixedly connected to a drive shaft 705 through a coupling. An active rotating gear 704 is fixedly connected to the outer wall of the drive shaft 705. The active rotating gear 704 and the driven rotating gear 707 mesh with each other. A connecting rod 708 is fixedly connected to the lower-facing outer wall of the cleaning sleeve 701. A pointing ring cover 706 is fixedly connected to the connecting rod 708.

[0044] Specifically, before the high-frequency wire harness is conveyed to the isolation ring frame 601, it passes through the cleaning sleeve 701. The drive motor 703 is started, and the drive motor 703 drives the active rotating tooth 704 to rotate, thereby driving the driven rotating tooth 707 to rotate. The annular slide plate 712 rotates in the annular guide rail 711, driving the bristles 709 on each rotating brush plate 710 to clean the high-frequency wire harness located inside the cleaning sleeve 701. During the cleaning process, the adsorption pump 12 is started. The adsorption pump 12 collects the dust that falls off the high-frequency wire harness through each collection hole 713 inside the cleaning sleeve 701, completing the cleaning of the high-frequency wire harness and preventing dust from adhering to the high-frequency wire harness and causing errors in the machine vision inspection results.

[0045] An application of the machine vision-based surface defect detection device described above in high-frequency wire harnesses.

[0046] Working Principle: During use, the high-frequency wire harness passes through the cleaning sleeve 701, the partition ring frame 601, the shock-absorbing sleeve 608, the detection frame 2, and the guide tube 3. The detection frame 2 is moved forward and backward by a conveying mechanism and a winding mechanism. Before reaching the partition ring frame 601, the high-frequency wire harness passes through the cleaning sleeve 701. The drive motor 703 is activated, driving the active rotating gear 704 to rotate, which in turn drives the driven rotating gear 707 to rotate. The annular slide plate 712 rotates in the annular guide rail 711, causing the bristles 709 on each rotating brush plate 710 to clean the high-frequency wire harness inside the cleaning sleeve 701. During cleaning, the adsorption pump 12 is activated, collecting dust that has fallen off the high-frequency wire harness through the collection holes 713 inside the cleaning sleeve 701, completing the cleaning of the high-frequency wire harness. After cleaning, the high-frequency wire harness moves to the partition ring frame 601 and, with the assistance of the guide roller 602, moves to the shock-absorbing sleeve 608. In the vibration sleeve 608, the shock-absorbing airbag layer 607, together with each shock-absorbing spring rod 611, realizes the first-stage and second-stage shock absorption of the high-frequency wire harness, ensuring that the high-frequency wire harness moving to the machine vision inspection mechanism 5 is in a stable state. When the high-frequency wire harness moves between the two machine vision inspection mechanisms 5, the machine vision inspection mechanism 5 performs surface defect detection on it. If defects appear on the surface of the high-frequency wire harness, the electromagnet 1304 is de-energized, the electromagnet 1304 separates from the iron block 2 1314, the electromagnet 2 1308 is de-energized, the electromagnet 2 1308 separates from the iron block 1 1309, and the pull spring 2 1310 drives the marker pen 1303 to pop out. The marker pen 1303 contacts and squeezes the high-frequency wire harness, and the limit slider 1302 deflects downward in the limit rail 1301, which drives the marker pen 1303 to mark the range of defects in the high-frequency wire harness, which is convenient for subsequent personnel to handle defects. The operation continues until the surface defect detection of the high-frequency wire harness is completed.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surface defect detection device based on machine vision, comprising a base (1), characterized in that, A detection frame (2) is fixedly connected to the base (1), and two machine vision detection mechanisms (5) are symmetrically distributed on the inner sidewall of the detection frame (2). A partition plate (4) is fixedly connected to the inner ring surface of the top and bottom of the detection frame (2). Two mounting rods (11) are fixedly connected to one side of the base (1). A damping mechanism (6) is provided at one end of the two mounting rods (11). The damping mechanism (6) includes a damping ring frame (601) and a damping sleeve (608). The damping ring frame (601) is fixedly connected to one end of the two mounting rods (11). A mounting ring frame (606) is fixedly connected to the outer sidewall of the damping sleeve (608). The mounting ring frame (606) is fixedly connected to the same side of the two partition plates (4). The end of the shock-absorbing sleeve (608) facing the partition ring frame (601) is fixedly connected to the flow guide (605). The inner sidewalls of the shock-absorbing sleeve (608) near both ends are fixedly connected to the same shock-absorbing airbag layer (607). The inner sidewalls of the shock-absorbing sleeve (608) outside the shock-absorbing airbag layer (607) are fixedly connected to shock-absorbing spring rods (611) at equal distances. One end of each shock-absorbing spring rod (611) is fixedly connected to a single-point pressure ball (612). The inner sidewalls of the partition ring frame (601) are connected to flow guide rollers (602) at equal distances through bearings.

2. The surface defect detection device based on machine vision according to claim 1, characterized in that, The partition ring frame (601) is fixedly connected to two side rods (603) on both sides near the guide shroud (605), and tension adjustment rails (604) are fixedly connected to the opposite ends of the two side rods (603). Adjustment sliders (617) are slidably connected inside the two tension adjustment rails (604). The same shaft frame (616) is fixedly connected to the opposite side of the two adjustment sliders (617). The same connecting shaft (615) is connected to the inner walls of both sides of the shaft frame (616) through bearings. Tension adjustment rollers (609) are fixedly connected to the outer wall of the connecting shaft (615).

3. The surface defect detection device based on machine vision according to claim 2, characterized in that, The top of the two tension adjustment rails (604) is fixedly connected to the same upper frame (610), and the bottom of the upper frame (610) is fixedly connected to a hydraulic cylinder (613). The output end of the hydraulic cylinder (613) is fixedly connected to a pressure plate (614). The top of the shaft frame (616) has an installation groove, and the bottom inner wall of the installation groove is fixedly connected to a pressure sensor (619). The bottom inner wall of the installation groove, located around the pressure sensor (619), has telescopic connecting rods (618) distributed in a ring. The pressure plate (614) is fixedly connected to the top of the multiple telescopic connecting rods (618).

4. The surface defect detection device based on machine vision according to claim 1, characterized in that, Both sides of the upper partition plate (4) are provided with real-time marking mechanisms (13), and the real-time marking mechanism (13) includes a limiting rail (1301). The limiting rail (1301) is fixedly connected to one side of the partition plate (4). The limiting rail (1301) is slidably connected to a limiting slider (1302). The limiting slider (1302) is fixedly connected to a pull spring (1306) on one side inside the limiting rail (1301). One end of the pull spring (1306) is fixedly connected to the inner wall of one side of the limiting rail (1301).

5. The surface defect detection device based on machine vision according to claim 4, characterized in that, The limiting rail (1301) is fixedly connected to the same external frame (1305) on both sides above the limiting slider (1302), and an electromagnet (1304) is fixedly connected to the bottom of the external frame (1305). A fixing block (1313) is fixedly connected to the side of the limiting slider (1302) facing the electromagnet (1304), and an iron block (1314) is fixedly connected to the top of the fixing block (1313). The iron block (1314) is in contact with the electromagnet (1304).

6. The surface defect detection device based on machine vision according to claim 5, characterized in that, The limiting slider (1302) has a through operating hole in the middle, and an inner ring (1312) is fixedly connected to the inner wall of the operating hole. Pull springs (1310) are fixedly connected at equal distances on the side of the inner ring (1312) facing the center point of the limiting rail (1301). One end of multiple pull springs (1310) is fixedly connected to the same outer ring (1311). A marker pen (1303) is fixedly connected to the inner side of the outer ring (1311). Iron blocks (1309) are fixedly connected to the side of the outer ring (1311) near each pull spring (1310). A fixing rod (1307) is fixedly connected to the side of the inner ring (1312) facing each iron block (1309). An electromagnet (1308) is fixedly connected to the bottom end of the fixing rod (1307). The electromagnet (1308) is in contact with the iron block (1309).

7. The surface defect detection device based on machine vision according to claim 6, characterized in that, The two spacers (4) are fixedly connected to the same mounting ring frame (14) on the side away from the shock-absorbing sleeve (608), and the inner wall of the mounting ring frame (14) is fixedly connected to a guide pipe (3). The guide pipe (3) is connected to a rotating shaft (15) at equal distances from the lower inner wall via bearings. Each rotating shaft (15) is fixedly connected to an auxiliary roller (16) on the outer wall of its outer side.

8. The surface defect detection device based on machine vision according to claim 1, characterized in that, A support plate (9) is fixedly connected to one side of the base (1), and a lifting rod (8) is fixedly connected to the top of the support plate (9) away from the detection frame (2). A fixing ring (17) is fixedly connected to the top of the lifting rod (8). A surface cleaning mechanism (7) is provided on the fixing ring (17). The surface cleaning mechanism (7) includes a cleaning sleeve (701). The cleaning sleeve (701) is fixedly connected to the fixing ring (17). A collection box (10) is fixedly connected to the top of the support plate (9) near the lifting rod (8). An adsorption pump (12) is fixedly connected to the top of the collection box (10). The delivery end of the adsorption pump (12) is connected to the inside of the collection box (10) through a pipe. The collection end of the adsorption pump (12) is connected to the collection cavity opened inside the cleaning sleeve (701) through a pipe.

9. The surface defect detection device based on machine vision according to claim 8, characterized in that, The inner wall of the cleaning sleeve (701) has collection holes (713) at equal intervals. A ring guide rail (711) is fixedly connected to the side of the cleaning sleeve (701) away from the detection frame (2). A ring slide plate (712) is slidably connected inside the ring guide rail (711). A rotating brush plate (710) is fixedly connected at equal intervals on the side of the ring slide plate (712) facing the inside of the cleaning sleeve (701). Brush bristles (709) are provided on the side of the rotating brush plate (710) facing the center line of the cleaning sleeve (701). A driven rotating tooth is fixedly connected to the outer wall of the ring slide plate (712). 707), a motor frame (702) is fixedly connected to one side of the annular guide rail (711), a drive motor (703) is fixedly connected to one side of the motor frame (702), the output shaft of the drive motor (703) is fixedly connected to the drive shaft (705) through a coupling, an active rotating gear (704) is fixedly connected to the outer wall of the drive shaft (705), the active rotating gear (704) and the driven rotating gear (707) mesh with each other, a connecting rod (708) is fixedly connected to the outer wall of the cleaning sleeve (701) facing downward, and a pointing ring cover (706) is fixedly connected to the connecting rod (708).

10. An application of a machine vision-based surface defect detection device according to any one of claims 1-9 in high-frequency wire harnesses.

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