KR-102961794-B1 - Nut vision inspection device

KR102961794B1KR 102961794 B1KR102961794 B1KR 102961794B1KR-102961794-B1

Abstract

The present invention comprises: a transfer unit in which nuts sequentially discharged from a feeder are transported forward while maintaining a certain posture; guide units installed longitudinally on both sides of the front of the transfer unit to guide both sides of the nuts transported through the transfer unit; a transmission motor unit installed at the bottom of the guide unit to drive a transfer belt; a transfer belt mounted on the transmission motor unit to rapidly transport the nuts forward while supporting both sides of the lower portion of the nuts; and an inspection camera installed at the bottom of the transmission motor unit to photograph a tap machined on the lower portion of the nuts to inspect for defects. By including these components, the nuts transported to the guide unit are rapidly transported forward by the driving of the transmission motor unit, thereby improving the inspection efficiency of the nuts.

Inventors

강영철
김영섭

Assignees

주식회사 피케이메카트로닉스

Dates

Publication Date: 20260508
Application Date: 20230822

Claims (5)

A transfer unit in which nuts sequentially discharged from a feeder are transported forward while maintaining a constant posture; Guide units installed longitudinally on each of the front sides of the above-mentioned transfer unit to guide both sides of a nut being transferred through the transfer unit; A transmission motor unit installed at the lower part of the above guide unit to drive the conveyor belt rotation; A conveyor belt mounted on the above-mentioned transmission motor unit, which supports both lower sides of the nut and rapidly conveys it forward; An inspection camera installed at the lower part of the transmission motor unit and capable of photographing a tap machined at the lower part of the nut to check for defects; It includes position alignment units installed on each side inside the discharge guide so that the nut passing through the above guide unit maintains a certain posture, A space formed on the inner side of the above discharge guide; A position alignment member, one end of which is fixed to the inside of the space via an axis and the other end of which is exposed to the space between the discharge guides; A nut vision inspection device comprising an elastic member coupled to the above shaft to provide elasticity to a position alignment member.
In claim 1, The above transmission motor unit is, Supports fixed to the lower part of the above guide unit; A transmission motor fixed to the lower part of the above support to transmit driving force; A drive pulley rotatably mounted on the upper part of the above support and rotating by the driving force of a transmission motor; A nut vision inspection device comprising two driven pulleys that rotate and are spaced apart from the drive pulley in the direction of the guide unit.
In claim 1, The above conveyor belt is, It includes a transfer section that is coupled to the driving pulley and the driven pulley of the above-mentioned transmission motor unit, and is formed between one driven pulley and another driven pulley to support and transfer both lower sides of the nut. A nut vision inspection device characterized in that the above-mentioned transfer section is formed in the inner lower part of a guide unit adjacent to a transfer unit.
In claim 1, It includes a contact part that is inserted into the above conveyor belt and adheres to the lower part of the nut when the nut is moved forward, so as to be moved accurately at a preset speed. The above contact portion is, A body portion formed longitudinally inside the above conveyor belt; A fixing hole penetrating at regular intervals in the central part of the body portion; A nut vision inspection device characterized by including a contact member formed at both ends of the body portion and in close contact with both lower sides of the nut.
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Description

Nut vision inspection device The present invention relates to a nut vision inspection device. Driven by the development of the electronics industry and increasing demand, fastening components are becoming smaller and more precise to support the trend toward higher quality in electronic products. This trend toward higher quality in electronic products entails an improvement in the quality reliability of fastening components. Consequently, the inspection of fastening components has become an established and important part of quality control. A vision inspection device, which is one of the automated inspection equipment for fastening components, is configured to inspect the appearance of a product by processing images of the fastening components. In this inspection process, unlike screws, for which it is typically sufficient to obtain an image of the external surface, nuts present difficulties in image acquisition because an image of the internal threads of the hollow section must be obtained. In addition, since fastening element parts are transported sequentially one by one from the feeder to inspect for defects, the inspection speed is slow, which resulted in a significant decrease in the inspection efficiency of the fastening element parts. FIG. 1 is a planar configuration diagram of a nut vision inspection device to which the present invention is applied. FIG. 2 is an enlarged plan view of a key part of a nut vision inspection device according to an embodiment of the present invention. FIG. 3 is a diagram showing the state of rapidly transporting a nut by rotating the transmission motor unit according to an embodiment of the present invention. FIG. 4 is an enlarged planar configuration diagram of the transmission motor part of the present invention. Figure 5 is a diagram showing the state of inspecting the lower part of a nut being transported via the conveyor belt of the present invention by photographing it with an inspection camera. FIG. 6 is a cross-sectional view of the conveyor belt of the present invention. FIG. 7 is a side view of the conveyor belt of the present invention. FIG. 8 is a planar configuration diagram showing the position alignment part of the present invention. The following detailed description of the invention refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that various embodiments of the invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in relation to one embodiment. It should also be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the invention is limited only by the appended claims, including all equivalents to those claimed therein, provided appropriately described. Similar reference numerals in the drawings refer to the same or similar functions across various aspects. Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings. First, FIG. 1 is a plan view of a nut vision inspection device according to an embodiment of the present invention, and FIG. 2 is an enlarged plan view of a key part of a nut vision inspection device according to an embodiment of the present invention. In the nut vision inspection device, a number of nuts (N) are fed into the feeder (10). The nuts (N) fed into the feeder (10) are configured to be separated from each other by vibration and guided along a specific direction. The feeder (10) induces the nut (N) to assume a specific posture while transporting the nut (N), or removes the nut (N) that does not assume a specific posture. The above feeder (10) can be formed in various known types, such as stepped, conical, cylindrical, dish-shaped, and single-line types. A nut vision inspection device according to one embodiment of the present invention may include a transfer unit (100), a guide unit (200), a transmission motor unit (300), a transfer belt (400), and an inspection camera (500). The above transfer unit (100) is installed in front of the feeder, and the nut (N) transferred from the feeder (10) is transferred to the front where the guide unit (200) is located while maintaining a certain posture. The above transfer unit (100) has a closed bottom surface to support the lowest part of the nut (N), and the sides supporting both sides of the nut (N) form walls, and the top can be formed in an open shape. An alignment plate (110) may be formed on the upper part of the above tran