CN-121972424-A - Material main surface detecting system based on vision

CN121972424ACN 121972424 ACN121972424 ACN 121972424ACN-121972424-A

Abstract

The invention discloses a vision-based material main body surface detection system which comprises a carrier flow channel, a detection station group, a sorting module and a sorting module, wherein the detection station group comprises a first detection station, a second detection station and a sorting station, the first detection module comprises a first camera component, a first transfer device and a first grabbing component, the first transfer device is used for driving the first grabbing component to move materials out of a carrier and enabling the bottom surface of the materials to be exposed in the view field of the first camera component, the second detection module comprises a second transfer device and a second camera component, the second transfer device is used for driving the second camera component to move to the position above the carrier, and the sorting module is arranged corresponding to the sorting station and is configured to move abnormal materials out of the carrier according to detection results. According to the material main body surface detection system, the carrier does not need to be turned over integrally, double-sided detection can be completed smoothly in the flow channel transmission process, the detection flow is greatly simplified, and the detection output in unit time is remarkably improved.

Inventors

HUANG AIKE
PAN YONGPENG
Zou Qinian
LI JIANPING
MEI CHENGLIN
TU ZHONGYUAN
LI XIAOFENG

Assignees

深圳市标王工业设备有限公司

Dates

Publication Date: 20260505
Application Date: 20260408

Claims (13)

1. Vision-based material main surface detection system, characterized by comprising: The carrier flow channel is used for carrying and conveying carriers filled with materials to be detected to flow among different stations; The detection working station group is arranged along the path of the carrier flow channel and comprises a first detection working station, a second detection working station and a sorting working station; The first detection module is arranged corresponding to the first detection station and comprises a first camera shooting component, a first transfer device and a first grabbing component which is in sliding connection with the first transfer device, wherein the first transfer device is used for driving the first grabbing component to move materials out of the carrier and enable the bottom surface of the materials to be exposed in the view field of the first camera shooting component; The second detection module is arranged corresponding to the second detection station and comprises a second transfer device and a second camera shooting assembly which is in sliding connection with the second transfer device, and the second transfer device is used for driving the second camera shooting assembly to move to the upper part of the carrier so that the second camera shooting assembly can acquire an image of the top surface of a material in the carrier; And the sorting module is arranged corresponding to the sorting station and is configured to move out abnormal materials from the carrier according to the detection result.
2. The material main surface detection system according to claim 1, wherein the sorting module comprises a third transfer device, a third grabbing component in sliding connection with the third transfer device, and a buffer platform arranged beside the sorting station; The third transfer device is configured to drive the third grabbing component to move between the carrier and the buffer platform so as to transfer the abnormal materials from the carrier in the sorting station to the buffer carrier on the buffer platform.
3. The material main surface detection system according to claim 2, wherein a feeding carrier with good products is further arranged on the buffer platform, and the third transfer device is further configured to drive the third grabbing component to grab good products from the feeding carrier and transfer the good products to a space left after abnormal products are removed from the carriers in the sorting station.
4. A material body surface inspection system according to claim 3, wherein the set of inspection stations further comprises a waiting station located after the sorting station, the inspection system further comprising a carrier handling device disposed in correspondence of the waiting station; the carrier carrying device comprises a fourth transferring device and a fourth grabbing component connected with the fourth transferring device; The buffer platform comprises a fifth transfer device and a first supporting plate, the first supporting plate is in sliding connection with the fifth transfer device and is used for placing the buffer carrier and the material supplementing carrier, and the fifth transfer device is configured to drive the first supporting plate to move between the sorting station and the waiting station; the fourth transfer device is configured to drive the fourth grabbing component to transfer all the carriers with good materials at the waiting station to the first supporting plate to serve as the material supplementing carrier.
5. The material body surface detection system of claim 4, wherein a third camera assembly is further disposed above the waiting station, the third camera assembly configured to capture an image of a carrier at the waiting station to detect whether a condition abnormality exists in the carrier for the material.
6. The material body surface detection system of claim 1, wherein the carrier flow path comprises a frame extending in a material conveying direction, a transfer trolley is disposed in the frame, and the transfer trolley is configured to move in the frame to drive the carrier to circulate between stations.
7. The material main surface detection system according to claim 6, further comprising a feeding station arranged at the starting end of the carrier flow channel, wherein first supporting blocks are pivotally connected to two sides of a frame at the feeding station, a first lifting table is arranged in the frame, and a space for the transfer trolley to shuttle is formed in the first lifting table; The first supporting block is provided with a closed state which extends to the inner side of the frame to support the carrier and an open state which is separated from the inner space of the frame to release the carrier; The first jacking platform is configured to lift the carriers on the first supporting blocks through lifting motion, and the lowest carriers are separated and placed on the transfer trolley in cooperation with opening and closing actions of the first supporting blocks.
8. The material main surface detection system according to claim 7, wherein the feeding station is further provided with a power mechanism for driving the first supporting block to turn over, and the power mechanism comprises a first telescopic driving piece, a push plate, a connecting block and a connecting shaft; The output end of the first telescopic driving piece is connected with the push plate, the push plate is pivotally connected with one end of the connecting block, and the other end of the connecting block is fixedly connected with the connecting shaft; The connecting block is provided with a long and narrow through groove, and is fixed on the frame through a pin shaft penetrating through the through groove, so that when the connecting block receives the thrust of the push plate, the connecting block can swing relative to the pin shaft, and further the connecting block rotates around the axis of the connecting shaft.
9. The material main surface detection system according to claim 6, further comprising a blanking station arranged at the end of the carrier flow channel, wherein two sides of the frame at the blanking station are pivotally connected with second supporting blocks, and the second supporting blocks are provided with a closed state extending to the inner side of the frame to support the carrier and an open state separating from the inner space of the frame to release the carrier; a second jacking table is arranged in the rack, and a space for the transfer trolley to shuttle is arranged in the second jacking table; The second jacking platform is configured to jack up the carrier on the transfer trolley upwards through lifting motion so as to place the carrier on the second supporting block.
10. The material main body surface detection system according to claim 9, wherein a mounting groove is formed in the frame, the second supporting block is located in the mounting groove, the second supporting block comprises a connecting portion and a supporting portion, the connecting portion is pivotally connected with the mounting groove through a pivot shaft arranged on a side wall of the mounting groove, so that the supporting portion can perform overturning movement up and down, an elastic piece is further arranged between the supporting portion and the side wall of the mounting groove, and the elastic piece is used for providing elastic restoring force for the second supporting block, wherein the elastic restoring force is constantly in a closed state.
11. The material main body surface detection system according to claim 6, wherein the transfer trolley comprises a transfer device and a trolley body arranged on the transfer device, a second supporting plate for bearing the carrier and clamping jaws arranged at two ends of the second supporting plate are arranged on the trolley body, and telescopic driving pieces for driving the clamping jaws to open and close are further arranged on the trolley body so as to fix or release the carrier.
12. The material body surface detection system according to claim 1, further comprising a braiding device in butt joint with the sorting station, wherein the braiding device is used for loading materials with good detection results into a carrier tape; the braiding device comprises a support panel, wherein a carrier tape flow channel for conveying a carrier tape is arranged on the support panel, one end of the carrier tape flow channel is a feeding station, and the other end of the carrier tape flow channel is a receiving station; The material feeding device comprises a material feeding station with a carrier flow channel, a material receiving station, a sixth conveying device, a sixth grabbing component, a material conveying device and a material conveying device, wherein the material feeding station of the carrier flow channel is in butt joint with the material receiving station of the carrier flow channel, the sixth conveying device and the sixth grabbing component are correspondingly arranged on the material sorting station and the material receiving station, and the sixth conveying device is in sliding connection with the sixth conveying device and is configured to drive the sixth grabbing component to convey materials which are detected as good products and are positioned in a carrier of the material sorting station into a carrier of the material feeding station; The braiding device further comprises a feeding mechanism arranged below the support panel, a film feeding mechanism arranged above the support panel, a hot pressing mechanism arranged on the carrier tape flow channel and positioned between the feeding station and the receiving station, and a winding mechanism arranged at the receiving station; the feeding mechanism is used for providing a carrier tape for the carrier tape flow channel; The film supply mechanism is used for covering a cover film on the carrier tape; The hot-pressing mechanism is used for hot-melting the cover film and the carrier tape together; and the winding mechanism is used for winding the material belt subjected to hot pressing into a roll.
13. The material main body surface detection system according to claim 12, wherein the braiding device is arranged on a fixed carrier through a bracket, two carrier flow passages are arranged on the support panel in parallel, and a group of feeding mechanism, film feeding mechanism, hot pressing mechanism and winding mechanism are respectively arranged for each carrier flow passage; the support with fixed carrier sliding connection, still be provided with on the fixed carrier with the driver of leg joint, the driver is used for the drive the support is along predetermineeing the orbit and remove, so that two the carrier band runner can alternate with select separately the station butt joint.

Description

Material main surface detecting system based on vision Technical Field The invention relates to the technical field of automatic detection of surfaces of electronic components, in particular to a vision-based material main body surface detection system. Background After the manufacture of chips (ICs) or electronic components, in order to ensure the yield and reliability of the product, it is necessary to perform a strict appearance inspection in addition to the test of electrical performance. Appearance detection is mainly used for identifying physical defects on the surface of a chip, such as cracks, chipping, scratches, dirt, pin deformation and the like, rejecting defective products (NG products) which are not in accordance with requirements, and collecting or packaging the defective products which are in accordance with the requirements into a material belt. In existing automated production lines, the material (e.g., chips) to be inspected is typically carried in an array of recesses in a tray for circulation. This type of carrying, while convenient for mass transport, also presents challenges for all-round visual inspection. Specifically: First, when the chip is placed in the tray, its top surface is exposed to the outside, and shooting detection is easily performed by the camera above. However, the bottom surface of the chip is attached to the bottom of the groove of the tray and is in a visual blind area. In order to inspect the bottom surface, conventional practices may require manual flipping of the chip, or use of complex flipping mechanisms to flip the entire tray of chips, which is not only inefficient, but also increases the risk of the chip being damaged during the flipping process. Secondly, existing inspection equipment often has a single function, such as only top inspection, or bottom inspection, requiring material transfer to a specific glass tray. This means that multiple devices may be required to perform double-sided inspection of the top and bottom surfaces, or complex multiple transfers may be performed in the same device, resulting in large floor space, high device costs, and low material transfer efficiency for the production line. Therefore, a new detection mechanism for detecting the surface of the material needs to be designed. Disclosure of Invention The invention aims to provide a vision-based material main body surface detection system which can detect the top surface and the bottom surface of a material loaded in a carrier at the same time with high efficiency and can automatically sort the material according to detection results. In order to achieve the above object, the present invention provides a vision-based material body surface detection system, which includes: The carrier flow channel is used for carrying and conveying carriers filled with materials to be detected to flow among different stations; The detection working station group is arranged along the path of the carrier flow channel and comprises a first detection working station, a second detection working station and a sorting working station; The first detection module is arranged corresponding to the first detection station and comprises a first camera shooting component, a first transfer device and a first grabbing component which is in sliding connection with the first transfer device, wherein the first transfer device is used for driving the first grabbing component to move materials out of the carrier and enable the bottom surface of the materials to be exposed in the view field of the first camera shooting component; The second detection module is arranged corresponding to the second detection station and comprises a second transfer device and a second camera shooting assembly which is in sliding connection with the second transfer device, and the second transfer device is used for driving the second camera shooting assembly to move to the upper part of the carrier so that the second camera shooting assembly can acquire an image of the top surface of a material in the carrier; And the sorting module is arranged corresponding to the sorting station and is configured to move out abnormal materials from the carrier according to the detection result. Preferably, the sorting module comprises a third transfer device, a third grabbing component in sliding connection with the third transfer device, and a buffer platform arranged beside the sorting station; The third transfer device is configured to drive the third grabbing component to move between the carrier and the buffer platform so as to transfer the abnormal materials from the carrier in the sorting station to the buffer carrier on the buffer platform. Preferably, the buffer platform is further provided with a feeding carrier with good products, and the third transferring device is further configured to drive the third grabbing component to grab good products from the feeding carrier and transfer the good products to a vacant place left after abnormal prod