An appearance inspection device for a chip

Abstract

The utility model discloses a kind of appearance detection devices for chip, including conveying line, the conveying line is used to transmission tray with chip, the inside of conveying line is equipped with lifting mechanism, the lifting plate of lifting mechanism is connected with limiting component, the limiting component includes support rod, limiting baffle, shock absorber, assembly rod, the left and right sides of support rod are symmetrically equipped with mounting plate, one end of mounting plate is fixed on lifting plate, the cylinder of shock absorber is fixed on support rod through locating seat, the movable rod of shock absorber is towards front and is connected with assembly rod, the rear side of the lower portion of limiting baffle is equipped with supporting plate, in-situ sensor is installed on supporting plate, integrated a set of buffer limiting and in-situ detection device that can lift, when tray reaches detection station before conveying line, left and right symmetric shock absorber absorbs its inertia impact first, in-situ sensor hidden in the rear side of baffle directly senses tray edge through through-hole, instantaneous trigger signal is sent.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a device for inspecting the appearance of chips. Background Technology

[0002] In automated production lines for chip appearance inspection, traditional conveying devices rely solely on fixed stops at the end or side of the conveyor line for rough positioning. This lack of flexible limiting and real-time position monitoring during the tray's movement leads to tray displacement and bouncing due to inertial impact during high-speed start-up and shutdown, resulting in inaccurate position signals. This causes delays or repetitions in the vision system's image capture, significantly reducing inspection accuracy. Furthermore, rigid impacts can easily cause secondary damage to the chip. Therefore, there is an urgent need for a mechanism that integrates high-precision position detection and buffering, accurately sensing and issuing a position signal the instant the tray arrives at the inspection station, while simultaneously providing flexible limiting through shock absorption and adjustable baffles, protecting the chip and ensuring stable imaging by the vision system. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model relates to a chip appearance inspection device. This device has a simple and reliable structure, effectively solves the aforementioned technical problems, and is suitable for widespread use. To achieve the above objectives, this utility model is implemented through the following technical solution:

[0004] A device for inspecting the appearance of chips includes a conveyor line for transporting a tray containing chips. The tray can move with the conveyor line to an inspection station for inspection by a visual inspection device. A lifting mechanism is installed on the inner side of the conveyor line. The lifting plate of the lifting mechanism is connected to a limit assembly. The limit assembly includes a support rod, a limit baffle, a shock absorber, and an assembly rod. Mounting plates are symmetrically arranged on the left and right sides of the support rod. One end of the mounting plate is fixed to the lifting plate. The cylinder of the shock absorber is fixed to the support rod by a positioning seat. Two shock absorbers are symmetrically arranged on the left and right sides. The movable rod of the shock absorber faces forward and is connected to the assembly rod. A spring is sleeved on the outer side of the movable rod. Both ends of the assembly rod are bent inward. The rear surface of the limit baffle is attached to and fixedly connected to the assembly rod. A support plate is provided on the lower rear side of the limit baffle. A position sensor is installed on the support plate. A through hole is opened on the baffle for the position sensor to detect the position signal of the tray.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme: the limiting baffle is provided with inwardly curved side plates on its periphery, and the baffle and each side plate form a semi-enclosed cavity and cover the positioning sensor on the inside.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the support rod is provided with positioning grooves on the left and right sides, and one end of the mounting plate is engaged in the positioning groove and detachably connected to the support rod by means of bolts.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the conveyor line includes two symmetrical conveyor belts, the synchronous pulleys of the conveyor belts are driven by a motor drive assembly, and the two ends of the material tray are placed on the conveyor belts and move with them.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the lifting mechanism further includes a lifting cylinder, the lifting cylinder is located between the two conveyor belts of the conveyor line, the piston rod of the lifting cylinder faces upward and is fixedly connected to the lifting plate, and the cylinder body of the lifting cylinder is fixed to the frame of the conveyor line through the base plate.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the assembly rod is further provided with two symmetrical reinforcing plates, which are inclined backward from bottom to top and fit against the baffle.

[0010] The outstanding and beneficial technical effects of this invention compared to the prior art are as follows: This invention integrates a set of liftable buffer limit and position detection device inside the conveyor line. Before the material tray arrives at the detection station with the conveyor line, the left and right symmetrical shock absorbers first absorb its inertial impact. The position sensor hidden behind the baffle directly senses the edge of the material tray through the through hole and instantly sends a trigger signal. The whole process not only avoids chip damage from impact, but also ensures that each detection starts at the same reference position. Moreover, it solves the problems of misjudgment and repeated shooting caused by inaccurate positioning and signal delay in the past, so as to achieve a reliable balance between speed and accuracy in appearance inspection. Attached Figure Description

[0011] Figure 1 This is a top view of the overall structure of the device;

[0012] Figure 2 This is a schematic diagram of the overall limit component;

[0013] Figure 3 This is a schematic diagram of the internal components of the limit assembly. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0015] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The directions or positional relationships shown are for the purpose of describing this utility model only, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0017] To solve the above technical problems, such as Figure 1-3 As shown, this utility model designs a chip appearance inspection device, including a conveyor line 1. The conveyor line 1 is used to transport a tray containing chips. The tray can move with the conveyor line 1 to an inspection station for inspection by a visual inspection device (not shown in the figure). The camera of the visual inspection device is positioned vertically downward above the inspection station and can capture images of the chips in the tray. A lifting mechanism is installed on the inner side of the conveyor line 1. The lifting plate 2 of the lifting mechanism is connected to a limit component. The limit component includes a support rod 3, a limit baffle 4, a shock absorber 5, and an assembly rod 6. Mounting plates 7 are symmetrically arranged on the left and right sides of the support rod 3. One end of the mounting plate 7 is fixed to the lifting plate 2. The cylinder of the shock absorber 5 is fixed to the support rod 3 by a positioning seat 8. Two shock absorbers 5 are symmetrically arranged on the left and right sides. The movable rod of the shock absorber 5... The assembly rod 6 is connected to the front of the moving rod, and a spring 9 is provided on the outside of the moving rod. The two ends of the assembly rod 6 are bent inward. The rear surface of the limiting baffle 4 is attached to the assembly rod 6 and fixedly connected to it. A support plate 10 is provided on the lower rear side of the limiting baffle 4. A positioning sensor 11 is installed on the support plate 10. A through hole is opened on the baffle for the positioning sensor 11 to detect the positioning signal of the material tray. The lifting mechanism is raised in advance before the material tray is about to be in place, so that the front end of the baffle is slightly higher than the conveying surface. The material tray is gently intercepted. The positioning sensor 11 sends a signal as soon as the edge of the material tray enters the detection area. The conveying line 1 decelerates and stops instantly. The material tray can be accurately stopped at the best imaging position of the vision system. Then the vision equipment takes a picture for detection. After completion, the lifting mechanism lowers and releases the material tray. The chip has zero displacement and zero damage. The detection cycle and accuracy are improved simultaneously.

[0018] In this embodiment, it is further preferred that the limiting baffle 4 has inwardly curved side plates 12 on its periphery. The limiting baffle 4 and each side plate 12 form a semi-enclosed cavity and cover the positioning sensor 11 inside, which has a protective effect to avoid accidental contact during equipment operation, thereby significantly improving the detection stability and service life of the sensor and ensuring that the positioning signal is accurate and reliable each time.

[0019] In this embodiment, it is further preferred that the support rod 3 is provided with positioning grooves on the left and right sides, and one end of the mounting plate 7 is engaged in the positioning groove and detachably connected to the support rod 3 by means of bolt connection, so as to realize the quick disassembly and assembly of the limit component and the fine adjustment of left and right symmetry. During maintenance, there is no need to disassemble the entire lifting mechanism, and replacement or calibration can be completed within a few minutes, which greatly shortens the downtime.

[0020] In this embodiment, it is further preferred that the conveyor line 1 includes two symmetrical conveyor belts. The synchronous pulleys of the conveyor belts are driven by the motor drive assembly 13. The two ends of the material tray are placed on the conveyor belts and move with them. The symmetrical double conveyor belt layout provides balanced support to both ends of the material tray, ensuring smooth operation without warping. The synchronous pulleys are uniformly controlled by the same motor drive assembly 13, ensuring consistent speed and synchronous start and stop. This not only prevents the material tray from tilting but also allows for precise coupling with the lifting and limiting mechanism, ensuring repeatability and positioning accuracy before each inspection.

[0021] In this embodiment, it is further preferred that the lifting mechanism also includes a lifting cylinder 14, which is located between the two conveyor belts of the conveyor line 1. The piston rod of the lifting cylinder 14 faces upward and is fixedly connected to the lifting plate 2. The cylinder body of the lifting cylinder 14 is fixed to the frame of the conveyor line 1 through the base plate. The piston rod directly pushes the lifting plate 2, so that the entire limiting assembly can extend or retract quickly and smoothly in the vertical direction without occupying the outer space of the conveyor line 1 and avoiding interference with the material tray. The cylinder body is locked to the frame through the base plate to ensure concentrated force and convenient disassembly and assembly.

[0022] In this embodiment, it is further preferred that the assembly rod 6 is also provided with two symmetrical reinforcing plates 15. The reinforcing plates 15 are inclined backward from bottom to top and fit against the baffle to form a triangular stable support, which not only improves the bending stiffness of the baffle during buffering, but also disperses the impact load transmitted by the shock absorber 5. It is not easy to deform after long-term use, ensuring the long-term reliability of the limiting accuracy.

[0023] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made by those skilled in the art based on the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for inspecting the appearance of chips, comprising a conveyor line for transporting a tray containing chips, the tray being movable along the conveyor line to an inspection station for inspection by a visual inspection device, characterized in that: A lifting mechanism is installed on the inner side of the conveyor line. The lifting plate of the lifting mechanism is connected to a limit assembly. The limit assembly includes a support rod, a limit baffle, a shock absorber, and an assembly rod. Mounting plates are symmetrically arranged on the left and right sides of the support rod. One end of the mounting plate is fixed to the lifting plate. The cylinder of the shock absorber is fixed to the support rod through a positioning seat. Two shock absorbers are symmetrically arranged on the left and right. The movable rod of the shock absorber faces forward and is connected to the assembly rod. A spring is sleeved on the outside of the movable rod. Both ends of the assembly rod are bent inward. The rear surface of the limit baffle is attached to and fixedly connected to the assembly rod. A support plate is provided on the lower rear side of the limit baffle. A position sensor is installed on the support plate. A through hole is opened on the baffle for the position sensor to detect the position signal of the material tray.

2. The chip appearance inspection device according to claim 1, characterized in that: The limiting baffle has inwardly curved side plates around its perimeter, and the limiting baffle and each side plate form a semi-enclosed cavity, covering the positioning sensor inside.

3. The chip appearance inspection device according to claim 2, characterized in that: The support rod has positioning grooves on both the left and right sides. One end of the mounting plate is engaged in the positioning groove and is detachably connected to the support rod by bolts.

4. The chip appearance inspection device according to claim 3, characterized in that: The conveyor line includes two symmetrical conveyor belts, the synchronous pulleys of which are driven by a motor drive assembly, and the two ends of the material tray are placed on the conveyor belts and move with them.

5. The chip appearance inspection device according to claim 4, characterized in that: The lifting mechanism also includes a lifting cylinder, which is located between two conveyor belts of the conveyor line. The piston rod of the lifting cylinder faces upward and is fixedly connected to the lifting plate. The cylinder body of the lifting cylinder is fixed to the frame of the conveyor line through a base plate.

6. The chip appearance inspection device according to claim 5, characterized in that: The assembly rod is also provided with two symmetrical reinforcing plates, which are inclined from bottom to top and rearward and fit against the baffle.

Images