Rubber sleeve defect identification and detection system

Abstract

The present invention discloses a rubber sleeve defect recognition and detection system, comprising: a base, on which the rubber sleeve can be placed; a prism seat, which is installed on the base and located above the rubber sleeve, and at least two prisms are evenly arranged along the circumferential extension of the rubber sleeve, and the angle between the mirror surface of the prism and the axis of the rubber sleeve is 30° to 50°; a CCD camera, which is installed on the base, and the CCD camera captures the image of the side wall of the rubber sleeve through the mirror reflection of the prism. The system is cleverly designed, and the side wall of the rubber sleeve can be imaged in the mirror surface of the prism evenly arranged on the prism seat, and the CCD camera can take a picture of the mirror image of the side wall of the rubber sleeve on the prism, and the CCD camera then sends the photographed photo to the control system, and the control system processes the photo through the corresponding program to obtain the corresponding readout signal and compare it with the preset standard. If it meets the standard, the rubber sleeve is identified as a qualified product, otherwise it is a defective product. The entire system structure is clever and can efficiently and accurately complete defect recognition and detection of the rubber sleeve.

Description

Technical Field

[0001] The invention relates to blind rivet manufacturing equipment, in particular to a rubber sleeve defect recognition and detection system. Background Art

[0002] Blind rivets, also called drawn rivets, are a type of rivets used for single-sided riveting, but they must be riveted using a special tool - a rivet gun (manual, electric, or pneumatic).

[0003] Before using the blind rivet, it is usually necessary to put a waterproof rubber sleeve on the head of the rivet. Usually, the blind rivet and the rubber sleeve are manufactured separately, and the produced blind rivet is not covered with the rubber sleeve. They need to be assembled before use. Among them, the rubber sleeve is a plastic part, which is made by stamping and forming with the corresponding mold. The rubber sleeve is usually divided into round tube and square tube.

[0004] During the stamping process of the mold, some defective products will be produced due to inadequate stamping or other accidental factors. The main reasons for the defectiveness of the rubber sleeve are appearance defects and appearance damage. These appearance defects include missing materials or inadequate gaps and concave parts on the circumferential side wall or square side wall of the rubber sleeve. At present, most manufacturers still use manual visual inspection to inspect the defects of the rubber sleeve, which is not only inefficient, but also easy to cause misjudgment due to excessive eye fatigue, affecting the subsequent assembly and use of the rubber sleeve, and causing serious safety hazards to product quality. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a rubber sleeve defect recognition and detection system, which has an ingenious structure and can accurately and efficiently perform defect recognition and detection on the rubber sleeve.

[0006] According to an embodiment of the present invention, a rubber sleeve defect identification and detection system includes: a base, on which the rubber sleeve can be placed; a prism seat, mounted on the base, located above the rubber sleeve, with at least two prisms evenly arranged along the circumferential extension of the rubber sleeve, and the angle between the mirror surface of the prism and the axis of the rubber sleeve is 30° to 50°; a CCD camera, mounted on the base, and the CCD camera captures the image of the side wall of the rubber sleeve through the mirror reflection of the prism.

[0007] At least the following beneficial effects are achieved:

[0008] The system is cleverly designed. The side wall of the rubber sleeve can be imaged in the mirror surface of the prism evenly arranged on the prism seat. The CCD camera can capture the image of the side wall of the rubber sleeve through the mirror reflection of the prism, that is, the CCD camera takes a picture of the mirror image of the side wall of the rubber sleeve on the prism, and the CCD camera then sends the taken picture to the control system. The control system processes the picture through the corresponding program, obtains the corresponding readout signal and compares it with the preset standard. If it meets the standard, the rubber sleeve is identified as a qualified product, otherwise it is a defective product. The whole system structure is clever, and can efficiently and accurately complete defect identification and detection of the rubber sleeve, providing quality assurance for products such as core-pulling rivets that need to be assembled with rubber sleeves.

[0009] According to some embodiments of the present invention, the rubber sleeve is a circular tube, and the prism seat has two prisms evenly arranged along the circumferential extension of the rubber sleeve.

[0010] According to some embodiments of the present invention, the rubber sleeve is a square tube with four side walls, and the prism seat has four prisms evenly arranged along the circumferential extension of the rubber sleeve, and the prisms correspond one-to-one to the side walls of the rubber sleeve.

[0011] According to some embodiments of the present invention, a loading mechanism is installed on the base, and a turntable is rotatably installed on the base. A plurality of evenly spaced slots are arranged on the periphery of the turntable, and the slots are used to receive the rubber sleeves to be tested from the loading mechanism.

[0012] According to some embodiments of the present invention, the loading mechanism includes a conveying channel and a vibration plate installed on the base, the conveying channel is inclined relative to the vibration plate, the vibration plate has a discharge port, the vibration plate is used to vibrate and arrange a plurality of rubber sleeves and discharge the rubber sleeves from the discharge port to the conveying channel, and the conveying channel can discharge the rubber sleeves onto the card slot.

[0013] According to some embodiments of the present invention, a supporting plate for supporting the rubber sleeve is provided on the base platform, and the supporting plate is located below the card slot.

[0014] According to some embodiments of the present invention, a limiting side plate cooperating with the turntable is provided on the base, and the limiting side plate is used to limit the rubber sleeve on the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 A top view of an embodiment of the present invention;

[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure after the CCD camera is hidden in an embodiment of the present invention;

[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figure 1 , Figure 3 and Figure 5The present invention discloses a rubber sleeve defect recognition and detection system, including a base 100, a prism seat 400 and a CCD camera 600, wherein the rubber sleeve can be placed on the base 100, the prism seat 400 is installed on the base 100 and is located above the rubber sleeve, the prism seat 400 is evenly arranged with at least two prisms 500 along the circumferential extension of the rubber sleeve, the angle between the mirror surface of the prism 500 and the axis of the rubber sleeve is 30° to 50°, the CCD camera 600 is installed on the base 100, and the CCD camera 600 captures the image of the side wall of the rubber sleeve through the mirror reflection of the prism 500.

[0026] It is understandable that when the rubber sleeve defect recognition and detection system of the present invention performs defect recognition and detection on the rubber sleeve, the operator can use proprietary mechanical equipment or conventional technical methods such as manipulating a robot to place the rubber sleeve to be detected on the base 100.

[0027] The system is cleverly designed. The side wall of the rubber sleeve can be imaged in the mirror surface of the prism 500 evenly arranged on the prism seat 400. The CCD camera 600 can capture the image of the side wall of the rubber sleeve through the mirror reflection of the prism 500, that is, the CCD camera 600 takes a photo of the mirror image of the side wall of the rubber sleeve on the prism 500, and the CCD camera 600 sends the taken photo to the control system. The control system processes the photo through a corresponding program, obtains a corresponding readout signal and compares it with a preset standard. If it meets the standard, the rubber sleeve is identified as a qualified product, otherwise it is a defective product. The entire system structure is clever, and it is more efficient and accurate than the traditional manual visual inspection of the defects of the rubber sleeve, and it makes full use of the physical properties of the prism 500. The CCD camera 600 and the prism 500 can be used together to complete the defect identification and detection of the rubber sleeve. The detection cost is low and the detection effect is high, which provides quality assurance for products such as core-pulling rivets that need to be assembled with rubber sleeves.

[0028] In addition, in some embodiments of the present invention, see Figure 5 , the rubber sleeve is a round tube, and the prism seat 400 has two prisms 500 evenly arranged along the circumferential extension of the rubber sleeve. It can be understood that when the system performs defect recognition detection on the round tube, the round tube is vertically abutted on the base 100, and the axis of the round tube is perpendicular to the base 100. Since the angle between the mirror surface of the prism 500 and the axis of the round tube is between 30° and 50°, that is, the mirror surface of the prism 500 is inclined at a certain angle relative to the axis of the round tube, and the inclination angle is between 30° and 50°, because the round tube is between the two prisms 500, the circumferential side wall of the round tube can form a mirror image on the two prisms 500, that is, the circumferential side wall of the round tube is presented on the two prisms 500 in the form of a mirror image.

[0029] Specifically, in one embodiment, the axis of the circular tube is perpendicular to the base 100, the angle between the mirror surface of the prism 500 and the axis of the circular tube is 45°, and the CCD camera 600 is located directly above the circular tube. At this time, the mirror image of the circumferential side wall of the circular tube on the prism 500 is in a horizontal state, that is, the mirror image of the circumferential side wall of the circular tube is parallel to the base 100. The CCD camera 600 takes a photo of the horizontal mirror image of the circular tube side wall presented on the prism 500, thereby collecting the image of the circumferential side wall of the circular tube on a photo. The CCD camera 600 then sends the photographed photo to the control system, and the control system processes the photo through a corresponding program to obtain a corresponding readout signal and compares it with a preset standard. If it meets the standard, the circular tube is identified and determined as a qualified product, indicating that the side wall of the circular tube has no defects. If the comparison result does not meet the standard, the circular tube is identified and determined as a defective product, indicating that the side wall of the circular tube has defects. In this way, defect identification and detection of the circular tube is completed efficiently and accurately.

[0030] In addition, in some embodiments of the present invention, the rubber sleeve is a square tube with four side walls, and the prism seat 400 is evenly arranged with four prisms 500 along the circumferential extension of the rubber sleeve, and the prisms 500 correspond to the side walls of the rubber sleeve one by one. It can be understood that when the system performs defect recognition detection on the square tube, the mirror images of the four side walls of the square tube can be respectively presented on the four prisms 500. Similarly, the CCD camera 600 can take pictures of the four prisms 500 located below it, so that the images of the four side walls of the square tube are collected on one photo. The CCD camera 600 then sends the photographed photo to the control system, and the control system processes the photo through the corresponding program to obtain the corresponding readout signal and compare it with the preset standard. If it meets the standard, the square tube is identified as a qualified product, indicating that the side wall of the square tube has no defects. If the comparison result does not meet the standard, the square tube is identified as a defective product, indicating that the side wall of the square tube has defects. In this way, the defect recognition detection of the square tube is completed efficiently and accurately.

[0031] In addition, in some embodiments of the present invention, see Figure 1 , Figure 2 and Figure 4 In order for the system to automatically complete defect identification and detection actions for batches of rubber sleeves, a feeding mechanism 200 is installed on the base 100. A turntable 300 is also rotatably installed on the base 100. A plurality of evenly spaced card slots 310 are arranged on the periphery of the turntable 300. The card slots 310 are used to receive the rubber sleeves to be detected from the feeding mechanism 200. Specifically, the feeding mechanism 200 includes a conveying channel 220 and a vibration plate 210 installed on the base 100. The conveying channel 220 is inclined relative to the vibration plate 210. The vibration plate 210 has a discharge port 211. The vibration plate 210 is used to vibrate and arrange multiple rubber sleeves and discharge the rubber sleeves from the discharge port 211 to the conveying channel 220. The conveying channel 220 can discharge the rubber sleeves to the card slots 310.

[0032] It can be understood that the vibration plate 210 can be driven by a corresponding driving device to vibrate up and down relative to the base 100, and the turntable 300 can be driven by a rotating driving member such as a motor or a lantern to rotate relative to the base 100. The operator can use proprietary mechanical equipment or conventional technical methods such as manipulating a manipulator to place batches of rubber sleeves that need to be tested in the vibration plate 210. When the vibration plate 210 vibrates, multiple rubber sleeves to be tested can be discharged in an orderly manner from the discharge port 211 and then arranged on the conveying channel 220. While the turntable 300 is rotating, thanks to the inclined setting of the conveying channel 220, the rubber sleeves on the conveying channel 220 can slide one by one to each slot 310 on the turntable 300.

[0033] See also Figure 1 and Figure 5 In this embodiment, the prism seat 400 and the CCD camera 600 are both fixedly mounted on the base 100, and both the prism seat 400 and the CCD camera 600 are located directly above the card slot 310. The turntable 300 is a horizontal disk, and the card slot 310 is a vertical slot. It can be understood that while the turntable 300 is rotating in a circle, each card slot 310 on the turntable 300 will pass through the prism seat 400 in turn, and the CCD camera 600 can capture the image of the side wall of the rubber sleeve in turn through the mirror reflection of the prism 500, and then perform defect recognition detection on the image of the side wall of the rubber sleeve through the control system in the CCD camera 600 to determine whether the rubber sleeve is qualified. The system can transfer the rubber sleeve to the qualified product bin and the defective product bin according to the detection result of the rubber sleeve by the CCD camera 600. Obviously, the present invention sets a turntable 300 and a conveying channel 220. Through the cyclic rotation of the turntable 300 and the continuous feeding of the turntable 300 by the feeding mechanism 200, the CCD camera 600 can efficiently and accurately complete defect recognition and detection of batches of rubber sleeves, thereby greatly improving the defect recognition and detection efficiency of the rubber sleeves.

[0034] In addition, see Figure 4 and Figure 5 In the present embodiment, it should be understood that, considering that the card slot 310 is a vertical slot, that is, the card slot 310 is open at both ends, a supporting plate 110 for supporting the rubber sleeve is provided on the base 100, and the supporting plate 110 is located below the card slot 310, and the supporting plate 110 is arc-shaped. During the rotation of the rubber sleeve with the turntable 300, the rubber sleeve is located in the card slot 310 and its bottom end abuts against the supporting plate 110, and the supporting plate 110 effectively prevents the rubber sleeve from falling out from the lower opening of the card slot 310.

[0035] In addition, in this embodiment, in order to prevent the rubber sleeve from sliding along the supporting plate 110 and then sliding out of the front end opening of the slot 310 due to adverse factors such as the shaking of the turntable 300 during the rotation of the turntable 300, a limiting side plate 120 cooperating with the turntable 300 is provided on the base 100, and the limiting side plate 120 is used to limit the rubber sleeve on the slot 310.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Rubber sleeve defect identification and detection system, It is characterized in that include: Abutment, where the rubber sleeve can be placed; A prism seat is mounted on the base and located above the rubber sleeve, and at least two prisms are evenly arranged along the circumferential extension of the rubber sleeve, and the angle between the mirror surface of the prism and the axis of the rubber sleeve is 30° to 50°; A CCD camera, mounted on the base, the CCD camera captures an image of the side wall of the rubber sleeve through mirror reflection of the prism; A feeding mechanism is installed on the base, and a turntable is also rotatably installed on the base. A plurality of evenly spaced slots are arranged on the periphery of the turntable, and the slots are used to receive the rubber sleeves to be tested from the feeding mechanism. The feeding mechanism includes a conveying channel and a vibrating plate installed on the base, the conveying channel is inclined relative to the vibrating plate, and the vibrating plate has a discharge port, and the vibrating plate is used to vibrate and arrange a plurality of rubber sleeves and discharge the rubber sleeves from the discharge port to the conveying channel, and the conveying channel can discharge the rubber sleeves onto the slots; the prism seat and the CCD camera are both fixedly installed on the base, and the prism seat and the CCD camera are both located directly above the slots, the turntable is a horizontal disc, and the slots are vertical slots, and the upper and lower ends of the slots are open, and a supporting plate for supporting the rubber sleeves is provided on the base, and the supporting plate is located below the slots, and the supporting plate is arc-shaped. During the rotation of the rubber sleeve with the turntable, the rubber sleeve is located in the slots and its bottom end abuts against the supporting plate.

2. The rubber sleeve defect recognition and detection system according to claim 1, It is characterized in that The rubber sleeve is a circular tube, and the prism seat has two prisms evenly arranged along the circumferential extension of the rubber sleeve.

3. The rubber sleeve defect recognition and detection system according to claim 1, It is characterized in that The rubber sleeve is a square tube with four side walls. The prism seat is evenly arranged with four prisms along the circumferential extension of the rubber sleeve, and the prisms correspond to the side walls of the rubber sleeve one by one.

4. The rubber sleeve defect recognition and detection system according to claim 1, It is characterized in that The base is provided with a limiting side plate matched with the turntable, and the limiting side plate is used to limit the rubber sleeve on the card slot.

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