A backlight finished product appearance inspection machine

Abstract

The invention discloses a backlight finished product appearance inspection machine, comprising a workbench, an outer cover, a computer, an NG product collection box, and an FFU fan; the outer cover is connected to a production conveyor belt on the left side, and is connected to a material unloading conveyor belt on the right side; the invention also comprises a feeding mechanism, a picking mechanism, and a detection mechanism; the feeding mechanism comprises a feeding conveyor belt and a positioning component; the picking mechanism comprises a picking swing arm and a picking negative pressure suction cup; the detection mechanism comprises a flatness detection station and an appearance defect detection station, the flatness detection station is used to detect the flatness and deformation of the finished product, and the appearance defect detection station is used to detect the appearance defects on the front and back sides of the finished product, and the appearance defects and characters on the front and back sides of the FPC gold finger of the finished product; when working, the detection mechanism captures the image of the backlight finished product, and sends it to the computer for analysis, and then the backlight finished product is transferred by the picking mechanism; compared with the previous manual detection method, the invention has the advantages of high detection efficiency and comprehensive detection.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a backlight source finished product appearance detection machine. Background Art

[0002] The backlight is a light source located behind the liquid crystal display, and its luminous effect will directly affect the visual effect of the liquid crystal display module. The liquid crystal display itself does not emit light, it displays graphics or the result of its modulation of light. Therefore, the product quality of the backlight of the liquid crystal display directly affects the imaging effect of the liquid crystal display. For example, the flatness, deformation, and surface dirt, scratches, defects, overflow, and bias in the backlight will affect the luminous angle and brightness. In addition, the surface appearance defects, dirt, oxidation, and character defects of the FPC gold finger in the backlight will affect the normal operation of the backlight. Therefore, after the production of the backlight, it is necessary to inspect the flatness, appearance and other defects. In the past, manual inspection was used for inspection, but due to the slow efficiency of manual inspection and poor inspection quality, it is necessary to develop a backlight finished product appearance inspection machine to realize automatic inspection of the backlight finished product. Summary of the invention

[0003] The purpose of the present invention is to provide a backlight finished product appearance inspection machine to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A backlight finished product appearance inspection machine, comprising a workbench, an outer cover, a computer, and an NG product collection box; the outer cover is arranged on the upper part of the workbench, and has opening and closing doors and windows on its front and rear sides, and an opening on its left and right sides, the opening on the left side is connected to a production conveyor belt, and the opening on the right side is connected to a material unloading conveyor belt; the NG product collection box is arranged on the workbench, and also includes a feeding mechanism, a material taking mechanism, and a detection mechanism arranged on the workbench; the feeding mechanism includes a feeding conveyor belt and a positioning component; the feeding conveyor belt is connected to the production conveyor belt; the positioning component is arranged below the feeding conveyor belt, and is used to position the material from the feeding conveyor belt The finished backlight source is transported to the top thereof; the picking mechanism comprises a picking swing arm and a picking negative pressure suction cup arranged at the output end of the picking swing arm, the picking negative pressure suction cup is externally connected to a negative pressure device, and is used to transfer the finished backlight source to the inspection mechanism; the inspection mechanism comprises a flatness inspection station and an appearance defect inspection station, which are used to capture images of the finished backlight source and send them to a computer for analysis. If the analysis result is passed, the picking mechanism will transfer the finished backlight source to the next inspection station or to the unloading conveyor belt. If the analysis result is not passed, the picking mechanism will transfer the finished backlight source to the NG product collection box or to the unloading conveyor belt.

[0006] Furthermore, the positioning assembly includes a first positioning base, a second positioning base, a positioning slide rail, a positioning slider, left and right positioning columns, front and rear positioning columns, a driving slide rail, a driving slider, and a lifting cylinder; the first positioning base is arranged on the left side of the workbench and is located below the feed conveyor belt; the second positioning base is vertically and cross-arranged above the first positioning base; the positioning slide rails are respectively arranged in parallel on the first positioning base and the middle part of the second positioning base; the positioning slider is respectively slidably connected to the positioning slide rails; the left and right positioning columns and the front and rear positioning columns are respectively slidably connected to the positioning slide rails on the first positioning base and the second positioning base; the driving slide rail is arranged on the left and right sides of the positioning slide rail; the driving slide rail is slidably connected to the driving slide rail and is externally connected to a driving cylinder, and the driving slide rail is respectively connected to the left and right positioning columns and the front and rear positioning columns through a synchronous belt; the lifting cylinder is arranged at the lower part of the left positioning column of the left and right positioning columns.

[0007] Furthermore, the material picking mechanism also includes an X-axis slide rail pair; the X-axis slide rail pair is arranged on the upper part of the workbench; the material picking swing arm is slidably connected to the X-axis slide rail pair, and includes a swing arm motor and a sliding shaft; the swing arm motor is drivingly connected to the lower end of the material picking swing arm; one end of the sliding shaft is slidably connected to the upper end of the material picking swing arm, and the other end is fixedly connected to the material picking negative pressure suction cup.

[0008] Furthermore, the flatness detection station includes an XY-axis slide pair, a 3D vision camera, and a flatness detection placement table; the XY-axis slide pair is arranged on the workbench; the 3D vision camera is electrically connected to the computer and is slidably connected to the XY-axis slide pair; the flatness detection placement table is correspondingly arranged on the XY-axis slide pair, and the material of its upper surface is marble.

[0009] Furthermore, the appearance defect inspection station includes a front inspection station and a back inspection station; the front inspection station and the back inspection station include a surface vision camera and a surface inspection placement table; the surface inspection placement table is arranged on the workbench; the surface vision camera is arranged on the upper part of the surface inspection placement table through an adjustable bracket, and includes a surface contamination vision camera for detecting the surface of the backlight product, and a gold finger vision camera for detecting the FPC gold finger of the backlight product.

[0010] Furthermore, the appearance defect detection station also includes a side detection station; the side detection station includes a side vision camera, a side detection placement table, and a light and shadow reflection table; the side detection placement table is arranged on the workbench, and its bottom drive is connected to a rotating motor; the light and shadow reflection table is arranged on two adjacent sides of the side detection placement table, and an opening is provided on the top and one end facing the side detection placement table, and a reflector with a reflection angle connecting the two openings is provided inside; the side vision camera is arranged directly above the light and shadow reflection table.

[0011] Furthermore, a first flipping mechanism is provided between the front inspection station and the back inspection station; the first flipping mechanism includes a first flipping base, a telescopic cylinder, a first flipping motor, and a first flipping negative pressure suction cup; the first flipping base is arranged on the workbench; the telescopic cylinder is arranged on the first flipping base; the first flipping motor is arranged at the output end of the telescopic cylinder; the first flipping negative pressure suction cup is drivingly connected to the first flipping motor, and is externally connected to a negative pressure device.

[0012] Furthermore, a second flipping mechanism is provided on the front side of the side inspection station; the second flipping mechanism includes a second flipping base, a second flipping motor, and a second flipping negative pressure suction cup; the second flipping base is arranged on the workbench; the second flipping base is arranged on the second flipping base; the second flipping negative pressure suction cup is driven and connected to the second flipping motor, and is externally connected to a negative pressure device.

[0013] The beneficial effects of the present invention are as follows: 1. High detection efficiency; the present invention is provided with a feeding mechanism, a picking mechanism and a detection mechanism; the finished backlight source product is transferred from the production conveyor belt through the feeding mechanism, and then the picking mechanism transfers the finished backlight source product to the detection mechanism for detection; the detection mechanism includes a flatness detection station, a front and back detection station, and a side detection station, which can detect the flatness of the finished backlight source product and the contamination defects on the surface of the finished backlight source product. Compared with the previous manual detection, the detection efficiency is high and the detection result is accurate; 2. Comprehensive detection; the present invention is provided with a side detection station, and the side The inspection station includes a side vision camera, a side inspection placement table, and a light and shadow reflection table; the side inspection placement table is arranged on the workbench, and its bottom drive is connected to a rotating motor; the light and shadow reflection table is arranged on the adjacent two sides of the side inspection placement table, and its top and one end facing the side inspection placement table are provided with openings, and a reflector connecting the two openings at a reflection angle is provided inside; the side vision camera is arranged corresponding to the opening of the light and shadow reflection table, and through reflection imaging, the vision camera can detect the situation of the side of the backlight product by dislocation, and there is no need to set the camera in front of its side, which can make the mechanism arrangement more compact and save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the positioning assembly of the present invention;

[0017] Figure 4 It is a partial structural schematic diagram of the material taking mechanism of the present invention;

[0018] Figure 5 It is a structural schematic diagram of the first turning mechanism of the present invention;

[0019] Figure 6 It is a structural schematic diagram of the second turning mechanism of the present invention;

[0020] Figure 7 It is a structural schematic diagram of the flatness detection station of the present invention;

[0021] Figure 8 It is a schematic diagram of the local structure of the present invention;

[0022] Fig. 9 For the present invention Figure 8 A local enlarged schematic diagram;

[0023] Fig.10 It is a schematic diagram of a partial structure viewed from above of the present invention.

[0024] 100, workbench; 101, outer cover; 102, FFU fan; 103, NG product collection box; 104, unloading conveyor belt; 200, feeding mechanism; 201, feeding conveyor belt; 202, positioning assembly; 203, first positioning base; 204, second positioning base; 205, positioning slide rail; 206, positioning slider; 207, left and right positioning columns; 208, front and rear positioning columns; 209, driving slide rail; 210, driving slider; 211, lifting cylinder; 212, synchronous belt; 213, driving cylinder; 300, picking mechanism; 301, X-axis slide rail pair; 302, picking swing arm; 303, picking negative pressure suction cup; 304, first turning mechanism; 305, second turning mechanism; 306, swing arm motor; 307, sliding shaft; 308, first turning base; 309, The first flip motor; 310, the first flip negative pressure suction cup; 311, the second flip base; 312, the second flip motor; 313, the second flip negative pressure suction cup; 400, the detection mechanism; 401, the flatness detection station; 402, the appearance defect detection station; 403, the side detection station; 404, the XY axis slide rail pair; 405, the 3D vision camera; 406, the flatness detection placement table; 407, the front detection station; 408, the back detection station; 409A, the surface contamination vision camera; 409B, the gold finger vision camera; 410, the surface detection placement table; 411, the adjustable bracket; 412, the pressing block; 413, the side vision camera; 414, the side detection placement table; 415, the light and shadow reflection table; 416, the negative pressure hole; 417, the detection sensor; 418, the light source. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that the drawings of the present invention are all simplified and use inaccurate ratios, which are only used to conveniently and clearly assist in explaining the purposes of the embodiments of the present invention.

[0026] like Figures 1 to 10 As shown, a backlight finished product appearance inspection machine includes a workbench 100, an outer cover 101, a computer, an FFU fan 102, and an NG product collection box 103; the outer cover 101 is arranged on the upper part of the workbench 100, and has opening and closing doors and windows on the front and rear sides thereof, and an opening on the left and right sides thereof, the opening on the left side is connected to a production conveyor belt, and the opening on the right side is connected to a material unloading conveyor belt 104; the NG product collection box 103 is arranged on the workbench 100; the FFU fan 102 is arranged on the upper part of the outer cover 101;

[0027] It also includes a feeding mechanism 200, a material taking mechanism 300, and a detection mechanism 400 arranged on the workbench 100;

[0028] The feeding mechanism 200 includes a feeding conveyor belt 201 and a positioning assembly 202; the feeding conveyor belt 201 is connected to the production conveyor belt; the positioning assembly 202 is arranged below the feeding conveyor belt 201, and includes a first positioning base 203, a second positioning base 204, a positioning slide rail 205, a positioning slider 206, left and right positioning columns 207, front and rear positioning columns 208, a driving slide rail 209, a driving slider 210, and a lifting cylinder 211; the first positioning base 203 is arranged on the left side of the workbench 100 and is located The feed conveyor belt 201 is below; the second positioning base 204 is vertically cross-arranged above the first positioning base 203; the positioning rails 205 are respectively arranged in parallel on the first positioning base 203 and the middle part of the second positioning base 204; the positioning sliders 206 are respectively slidably connected to the positioning rails 205; the left and right positioning columns 207 and the front and rear positioning columns 208 are respectively slidably connected to the positioning rails 205 on the first positioning base 203 and the second positioning base 204; the driving rails 205 are respectively arranged in parallel on the first positioning base 203 and the middle part of the second positioning base 204; the positioning sliders 206 are respectively slidably connected to the positioning rails 205 on the first positioning base 203 and the second positioning base 204; the driving rails 205 are respectively arranged in parallel ... 09 is arranged on the left and right sides of the positioning slide rail 205; the driving slide block 210 is slidably connected to the driving slide rail 209 and is externally connected to a driving cylinder 213. The driving slide block 210 is respectively connected to the left and right positioning columns 207 and the front and rear positioning columns 208 through a synchronous belt 212; the lifting cylinder 211 is arranged at the lower part of the left positioning column of the left and right positioning columns 207; wherein the right positioning column of the left and right positioning columns 207 has a feed sensor at a position corresponding to the lower part of the feed conveyor belt 201, and the feed sensor is connected to the meter The computer is electrically connected; when the positioning assembly 202 is not working, the right positioning post of the left and right positioning posts 207 extends out of the feed conveyor belt 201. When the finished backlight source is transported to the top and blocked by the right positioning post, the sensor sends a signal to the computer, and the computer controls the driving cylinder to drive the left and right positioning posts 207 and the front and rear positioning posts 208 to clamp the finished backlight source relatively close, and at the same time controls the lifting cylinder 211 to drive the left positioning post of the left and right positioning posts 207 to rise, so as to prevent the finished backlight source from piling up;

[0029] The material picking mechanism 300 includes two groups of X-axis slide rail pairs 301, a material picking swing arm 302, a material picking negative pressure suction cup 303 arranged at the output end of the material picking swing arm 302 and having a negative pressure device outside, a first flipping mechanism 304, and a second flipping mechanism 305; the X-axis slide rail pair 301 is arranged on the upper part of the workbench 100; the material picking swing arm 302 is slidably connected to the X-axis slide rail pair 301, and includes a swing arm motor 306 and a sliding shaft 307; the swing arm motor 306 is drivingly connected to the lower end of the material picking swing arm 302; one end of the sliding shaft 307 is slidably connected to the upper end of the material picking swing arm 302, and the other end is fixedly connected to the material picking negative pressure suction cup 303; this material picking swing arm 302 can keep the negative pressure suction cup vertically downward during operation to ensure that the horizontal plane does not tilt when the backlight product is transferred; the first flipping mechanism 304 includes The first flipping mechanism 305 comprises a first flipping base 308, a telescopic cylinder 308A, a first flipping motor 309, and a first flipping negative pressure suction cup 310; the first flipping base 308 is arranged on the workbench 100; the telescopic cylinder 308A is arranged on the first flipping base 308; the first flipping motor is arranged on the output end of the telescopic cylinder 308A; the first flipping negative pressure suction cup 310 is drivingly connected to the first flipping motor 309, and is externally connected to a negative pressure device; the second flipping mechanism 305 comprises a second flipping base 311, a second flipping motor 312, and a second flipping negative pressure suction cup 313; the second flipping base 311 is arranged on the workbench 100; the second flipping base 311 is arranged on the second flipping base 311; the second flipping negative pressure suction cup 313 is drivingly connected to the second flipping motor 312, and is externally connected to a negative pressure device;

[0030] The inspection mechanism 400 includes a flatness inspection station 401, an appearance defect inspection station 402, and a side inspection station 403; the flatness inspection station 401 includes an XY axis slide rail pair 404, a 3D vision camera 405, and a flatness inspection placement table 406; the XY axis slide rail pair 404 is arranged on the workbench 100; the 3D vision camera 405 is electrically connected to the computer and slidably connected to the XY axis slide rail pair 404; the flatness inspection placement table 406 is correspondingly arranged on the XY axis slide rail pair 404, and the material of its upper surface is marble; the appearance defect inspection station 402 includes a front inspection station 407 and a back inspection station 408; the front inspection station 407, the back inspection station Station 408 includes a surface vision camera and a surface detection placement table 410; the surface detection placement table 410 is arranged on the workbench 100; the surface vision camera is arranged on the upper part of the surface detection placement table 410 through an adjustable bracket 411, and includes a surface contamination vision camera 409A for detecting the surface of the backlight product, and a gold finger vision camera 409B for detecting the FPC gold finger of the backlight product; wherein, the surface contamination vision camera 409A is used to detect surface appearance defects such as dirt, scratches, defects, overflow of glue, and misalignment; the gold finger vision camera 409B is used to detect surface appearance defects, dirt, oxidation, and characters on the gold finger of the backlight source; the surface detection placement camera 409B in the front detection station 407 is used to detect the surface appearance defects, dirt, oxidation, and characters on the gold finger of the backlight source; the surface detection placement camera 409A in the front detection station 407 is used to detect the ... The placement table 410 has a groove corresponding to the first flip negative pressure suction cup 310, and a clamping block 412 driven by a rotating cylinder is provided between the two surface detection placement tables 410. A Z-axis cylinder is also provided under the rotating cylinder, which can clamp the frame of the finished backlight source when the finished backlight source is transferred to prevent it from moving; the side detection station 403 includes a side vision camera 413, a side detection placement table 414, and a light and shadow reflection table 415; the side detection placement table 414 is arranged on the workbench 100, and its bottom is driven by a rotating motor; the light and shadow reflection table 415 is arranged on the adjacent two sides of the side detection placement table 414, and its side and the end facing the side detection placement table 414 are provided with openings , a reflector with a reflection angle connecting the two openings is provided inside; the side vision camera 413 is arranged corresponding to the side opening of the light and shadow reflection platform 415; it also includes a negative pressure hole 416, a detection sensor 417, and a light source 418; the negative pressure holes 416 are evenly arranged on the surface detection placement platform 410 and the side detection placement platform 414, and the detection sensor 417 is electrically connected to the computer and is respectively arranged in the middle of the surface detection placement platform 410 and the side detection placement platform 414, which is used to sense the position of the finished backlight source above the sensor, and cooperate with the material picking mechanism 300, the negative pressure control, the 3D vision camera 405, the surface vision camera, and the side vision camera 413 to work;The light source is arranged in front of each detection mechanism;

[0031] Working principle: First, the finished backlight product is transported from the production conveyor belt to the feed conveyor belt 201, and the positioning component 202 clamps the finished backlight product, and then the material-taking swing arm 302 transfers it to the flatness detection station 401 for detection. The 3D visual camera 405 takes an image of the finished backlight product, measures the depth error of each point on the surface of the finished backlight product, and uses a computer to analyze whether it has bending and whether the deformation is within the set range. Then the material-taking swing arm 302 transfers it to the flatness detection station 401. Inspection, firstly, analyze the surface contamination on the front side of the finished backlight source and the appearance and characters of the FPC gold finger, then the first flipping mechanism 304 flips it over and transfers it to the reverse inspection station 408, analyzes the surface contamination on the reverse side of the finished backlight source and the appearance and characters of the FPC gold finger, then the material taking swing arm 302 transfers it to the side inspection station 403 to analyze the surface contamination on the side of the finished backlight source, finally the second flipping mechanism 305 flips it over to restore the surface orientation during feeding, and at the same time transfers it to the unloading conveyor belt 104;

[0032] In this embodiment, the computer will record the test results of each item of the finished backlight source. If one of the items fails, it will still be transferred to the next inspection station by the material taking mechanism 300 during the inspection until the finished backlight source is transferred to the side inspection station 403, where it will be rotated by the rotating motor to be arranged at an angle different from other qualified finished products and moved to the unloading conveyor belt 104 for easy identification by the production line staff.

[0033] In addition, according to the manufacturer's requirements, an NG product collection box 103 can be provided in front of each inspection station. When the finished backlight source product fails the inspection station, the material picking mechanism 300 transfers it to the NG product collection box 103 in front of it to facilitate rework later.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A backlight product appearance inspection machine, comprising a workbench, an outer cover, a computer, and an NG product collection box; the outer cover is arranged on the upper part of the workbench, and has opening and closing doors and windows on the front and rear sides thereof, and an opening on both the left and right sides thereof, the opening on the left side is connected to a production conveyor belt, and the opening on the right side is connected to a material unloading conveyor belt; the NG product collection box is arranged on the workbench, and is characterized in that: It also includes a feeding mechanism, a material taking mechanism, and a detection mechanism arranged on the workbench; The feeding mechanism includes a feeding conveyor belt and a positioning assembly; the feeding conveyor belt is connected to the production conveyor belt; The positioning assembly is disposed below the feed conveyor belt and is used to position the finished backlight source product transported from the feed conveyor belt to the top thereof; The material picking mechanism includes a material picking swing arm and a material picking negative pressure suction cup arranged at the output end of the material picking swing arm, wherein the material picking negative pressure suction cup is externally connected to a negative pressure device for transferring the finished backlight source to the detection mechanism; The inspection mechanism includes a flatness inspection station and an appearance defect inspection station, which are used to capture images of the finished backlight source and send them to a computer for analysis. If the analysis result is passed, the finished backlight source will be transferred to the next inspection station or to the unloading conveyor belt by the material-taking mechanism. If the analysis result is not passed, the finished backlight source will be transferred to the NG product collection box or to the unloading conveyor belt by the material-taking mechanism. The appearance defect inspection station includes a side inspection station; the side inspection station includes a side vision camera, a side inspection placement table, and a light and shadow reflection table; the side inspection placement table is arranged on the workbench, and its bottom drive is connected to a rotating motor; the light and shadow reflection table is arranged on two adjacent sides of the side inspection placement table, and its side and one end facing the side inspection placement table are provided with openings, and a reflector with a reflection angle connecting the two openings is provided inside; the side vision camera is arranged corresponding to the opening on the side of the light and shadow reflection table.

2. The backlight product appearance inspection machine according to claim 1, characterized in that: The positioning assembly includes a first positioning base, a second positioning base, a positioning slide rail, a positioning slider, left and right positioning columns, front and rear positioning columns, a driving slide rail, a driving slider, and a lifting cylinder; the first positioning base is arranged on the left side of the workbench and is located below the feed conveyor belt; the second positioning base is vertically and cross-arranged above the first positioning base; the positioning slide rails are respectively and parallelly arranged on the first positioning base and the middle part of the second positioning base; the positioning slider is respectively slidably connected to the positioning slide rails; the left and right positioning columns and the front and rear positioning columns are respectively slidably connected to the positioning slide rails on the first positioning base and the second positioning base; the driving slide rail is arranged on the left and right sides of the positioning slide rail; the driving slide rail is slidably connected to the driving slide rail and is externally connected to a driving cylinder, and the driving slide rail is respectively connected to the left and right positioning columns and the front and rear positioning columns through a synchronous belt; the lifting cylinder is arranged at the lower part of the left positioning column of the left and right positioning columns.

3. The backlight product appearance inspection machine according to claim 1, characterized in that: The material picking mechanism also includes an X-axis slide rail pair; the X-axis slide rail pair is arranged on the upper part of the workbench; the material picking swing arm is slidably connected to the X-axis slide rail pair, and includes a swing arm motor and a sliding shaft; the swing arm motor is drivingly connected to the lower end of the material picking swing arm; one end of the sliding shaft is slidably connected to the upper end of the material picking swing arm, and the other end is fixedly connected to the material picking negative pressure suction cup.

4. The backlight product appearance inspection machine according to claim 1, characterized in that: The flatness detection station includes an XY-axis slide pair, a 3D vision camera, and a flatness detection placement table; the XY-axis slide pair is arranged on the workbench; the 3D vision camera is electrically connected to a computer and is slidably connected to the XY-axis slide pair; the flatness detection placement table is correspondingly arranged on the XY-axis slide pair, and the material of its upper surface is marble.

5. The backlight product appearance inspection machine according to claim 1, characterized in that: The appearance defect inspection station includes a front inspection station and a back inspection station; the front inspection station and the back inspection station include a surface vision camera and a surface inspection placement table; the surface inspection placement table is arranged on the workbench; the surface vision camera is arranged on the upper part of the surface inspection placement table through an adjustable bracket, and includes a surface contamination vision camera for detecting the surface of the backlight product, and a gold finger vision camera for detecting the FPC gold finger of the backlight product.

6. The backlight product appearance inspection machine according to claim 5, characterized in that: A first flipping mechanism is also provided between the front side inspection station and the back side inspection station; the first flipping mechanism includes a first flipping base, a telescopic cylinder, a first flipping motor, and a first flipping negative pressure suction cup; the first flipping base is arranged on the workbench; the telescopic cylinder is arranged on the first flipping base; the first flipping motor is arranged at the output end of the telescopic cylinder; the first flipping negative pressure suction cup is drivingly connected to the first flipping motor, and is externally connected to a negative pressure device.

7. The backlight product appearance inspection machine according to claim 1, characterized in that: A second flipping mechanism is also provided on the front side of the side inspection station; the second flipping mechanism includes a second flipping base, a second flipping motor, and a second flipping negative pressure suction cup; the second flipping base is arranged on the workbench; the second flipping base is arranged on the second flipping base; the second flipping negative pressure suction cup is drivingly connected to the second flipping motor and is externally connected to a negative pressure device.

Images