Search

CN-122016799-A - Current collector vision detection system

CN122016799ACN 122016799 ACN122016799 ACN 122016799ACN-122016799-A

Abstract

The invention discloses a visual detection system for a collector, which is used for detecting side abrasion and bottom surface electrolytic corrosion flaws of the collector. The system comprises a machine main body, a controller, a first photographing and image taking device and three reflectors, and realizes synchronous image taking of a single camera through light path design. The first light path collects bottom images through the first reflector and the third reflector. The second light path is through second speculum collection side image, solves copper product reflection of light interference. And a sensor and a code reader are used as auxiliary materials to realize the full-flow automation of material induction, identity recognition, image analysis and result judgment. The detection standard is that the side surface distance is 70-80mm, the bottom electrolytic etching is less than 0.3X0.3 mm, the precision is +/-0.2 mm, and the accuracy is more than 99.5%. The invention does not need a mechanical movement mechanism, is compatible with the layout of 4 grooves of a production line, improves the detection efficiency and stability, and is suitable for online quality inspection of electroplated flying target current collectors.

Inventors

  • XIE JUN

Assignees

  • 联策科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260105

Claims (8)

  1. 1. A current collector vision inspection system for visually inspecting whether a surface defect of at least one object to be inspected meets a predetermined standard in an environment having a light source, the current collector vision inspection system comprising: A machine main body; A controller; The first photographing and image taking device is arranged on the machine main body and connected with the controller, and the first photographing and image taking device photographs and takes an image of the object to be detected according to the instruction of the controller; The first reflecting mirror is arranged on the machine body and positioned in front of the first photographic image taking device, and the linear distance between the first reflecting mirror and the first reflecting mirror is a first distance; A second reflector disposed on the main body and in front of the first image capturing device, and having a linear distance therebetween of a second distance, wherein the second distance is greater than the first distance and the object to be detected is located on the right side of the second reflector, and A third reflector arranged on the machine body and positioned on the right side of the first reflector, wherein the linear distance between the third reflector and the first reflector is a third distance, The first photographic image capturing device is used for carrying out photographic image capturing on a bottom surface of the object to be detected through a first light path and the first reflecting mirror and the third reflecting mirror, and carrying out photographic image capturing on a side surface of the object to be detected through a second light path and the second reflecting mirror.
  2. 2. The current collector vision inspection system of claim 1, further comprising: the sensor is arranged on the machine body and connected to the controller, and the sensor is used for sensing whether the object to be detected exists in a detection area.
  3. 3. The current collector vision inspection system of claim 2, further comprising: a code reader disposed on the machine body and connected to the controller, If the sensor senses that the object to be detected exists in the detection area, the controller instructs the code reader to read the code of the object to be detected so as to acquire the identity number or the exclusive data of the object to be detected.
  4. 4. The system of claim 1, wherein the first camera device returns a bottom image of the bottom surface of the object and a side image of the side surface of the object to the controller, and the controller determines whether the bottom image and the side image meet the predetermined standard according to an image algorithm.
  5. 5. The visual inspection system of claim 4, wherein the object to be inspected is determined to be a good if the controller determines that both the bottom image and the side image meet the predetermined criteria.
  6. 6. The system of claim 4, wherein if the controller determines that at least one of the bottom image and the side image does not meet the predetermined criteria, the object to be detected is determined to be defective and then automatically records or notifies the relevant person.
  7. 7. The system of claim 1, wherein the first light path is incident from the first image capturing device to the first mirror, the first light path is reflected by the first mirror to the third mirror, and then the third mirror reflects the first light path to a bottom surface of the object to be detected.
  8. 8. The system of claim 1, wherein the second light path is incident from the first image capturing device to the second reflecting mirror, and the second light path is reflected by the second reflecting mirror to a side of the object to be detected.

Description

Current collector vision detection system Technical Field The invention belongs to the technical field of visual inspection of electronic components, in particular to a static double-sided synchronous inspection system for 'pure copper body electron collection', which is particularly used for inspecting two types of surface flaws of 'side abrasion' and 'bottom electric corrosion' of a current collector with the specification of 75 multiplied by 30 multiplied by 8mm (length multiplied by width multiplied by height), is particularly suitable for an online quality inspection scene which needs to be performed in a wiredrawing stainless steel background (about 100mm from a product) environment in an electroplating flying target production line, and solves the problems of low split inspection efficiency and insufficient precision of traditional multi-equipment. Background In the production and manufacture of the current collector for the electroplated flytarget, side abrasion and bottom electric erosion are key flaws which directly affect the service life of a product, wherein the former needs to judge whether the abrasion reaches half of a circle (namely, the abrasion exceeds the radius to be regarded as NG), and the latter needs to detect whether electric erosion pits exist at the bottom. However, the existing detection technology has the following core defects, and cannot be matched with actual production requirements. The multi-equipment splitting detection is that two independent vision cameras are required to be configured for respectively taking images according to the traditional scheme because of different detection angles of the side face and the bottom, not only the factory building space is occupied (side face/bottom detection stations are required to be respectively planned), but also the detection efficiency is low due to the synchronous delay of data of the two pieces of equipment, the single-chip detection time exceeds 300ms, and the production line beats of more than 8 products per second cannot be matched. The mechanical mechanism has poor stability, part of the improvement proposal tries to drive the electronic collection switching angle by the electric turntable so as to realize single-phase machine detection, but the abrasion of the electric mechanism can lead to positioning errors (the errors exceed 0.5mm after long-term use), and the motor/belt needs to be replaced regularly, thereby increasing the maintenance cost. Meanwhile, secondary scratches (silk drawing lines exist at the bottom of a current collector) on the surface of the pure copper body are easy to cause in the operation process of the turntable, and the product quality is affected. The light reflection interference and the precision are insufficient, electrons are collected to be made of pure copper, the surface is reflected in light intensity, a light spot is easily formed at a wiredrawing pattern by the traditional light source design (such as direct light at the top), so that micro defects of 'bottom electric corrosion <0.3 x 0.3 mm' are missed, the side abrasion detection is mostly carried out by visual comparison, the repeatability precision can only reach 1mm, and the production requirement of '0.2 mm within the repeatability precision' cannot be met. The on-site adaptability is poor, in an actual scene of a production line, the current collectors are loaded on the jig in a mode of 'a group of two with a spacing of about 500 mm', 4 slots are arranged in total, the material to be detected is randomly fed, the spacing between the front slot and the rear slot is 60mm, the traditional detection equipment cannot be compatible with the slot layout due to the large size and the rigidification of a fixing mode, and the production line is required to be transformed in a large scale, so that the cost is high. The problems cause that in the current collector detection in the prior art, four pain points of low efficiency, poor precision, complex maintenance and difficult adaptation exist, and a static vision system which can be matched with a production line scene, does not need mechanical movement and synchronously detects two sides is extremely needed. Disclosure of Invention The present invention provides a current collector vision inspection system for visually inspecting whether a surface defect of at least one object to be inspected meets a predetermined standard in an environment with a light source. In order to achieve the above objective, the present invention provides a current collector vision detection system, which comprises a machine main body, a controller, a first photographing and image capturing device, a first reflecting mirror, a second reflecting mirror and a third reflecting mirror. The first photographic image capturing device is arranged on the machine body and connected to the controller, and the first photographic image capturing device captures a photographic image of the object to be detected according to t