Appearance full-automatic detection equipment for LCM

Abstract

The application belongs to the technical field of electronic manufacturing, and particularly relates to a full-automatic appearance detection device for LCM (Liquid Crystal Module), which comprises a rack, the rack is connected by horizontal support rods and vertical support rods, a detection platform is fixedly installed on the horizontal support rods on the surface of the rack, an upper surface of the detection platform is fixedly installed with a feeding frame mechanism, the feeding frame mechanism comprises an L-shaped side plate fixedly installed on the upper surface of the detection platform, a conveying belt is placed on the lower end surface of the L-shaped side plate, a to-position air cylinder is fixedly installed on the middle part of one side surface of the L-shaped side plate, a positioning baffle is fixedly installed on one end of the to-position air cylinder, and the lower end surface of the positioning baffle is placed on one side of the conveying belt; multi-angle high-definition imaging and laser three-dimensional detection are realized through the first detection mechanism and the second detection mechanism, so that omnibearing and high-precision detection of various defects such as scratches, foreign matters, concave-convexness and flatness on the surface of the LCM is realized, and the missing detection rate and the false detection rate are effectively reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic manufacturing, and particularly relates to a full-automatic appearance detection equipment for LCM. BACKGROUND

[0002] An LCM manufacturing process is complex, and downstream electronic consumer products are rapidly updated, so higher requirements are put forward for the quality and production efficiency of the LCM. In order to meet market demand and improve product competitiveness, LCM production enterprises need more efficient and accurate detection equipment to ensure product quality and realize automatic production, so the development of a full-automatic appearance detection equipment for LCM is promoted.

[0003] A patent with the Chinese invention patent publication number CN114371130A discloses a bearing appearance full-automatic detection equipment, which comprises a bearing transverse conveying mechanism, first, second, third and fourth detection stations arranged from left to right in sequence, a bearing turnover mechanism, the first detection station is aligned with the chamfer of the inner circular surface and the A end face of the bearing through a first CCD detection camera; the second detection station is aligned with the A end face of the bearing through a second CCD detection camera; the bearing turnover mechanism turns the bearing by 180 degrees; the third detection station is aligned with the B end face of the bearing through a third CCD detection camera; and the fourth detection station is aligned with the chamfer of the outer circular surface and the B end face of the bearing through a fourth CCD detection camera. The bearing is fully detected by the four detection stations, and the detection efficiency is high.

[0004] However, the bearing structure is mainly composed of a metal ring surface and an end face, the surface material has high hardness and regular shape, the LCM contains glass substrates, flexible circuit boards and polarizing films, the glass substrate is relatively thin, and the surface of the polarizing film is prone to small wrinkles or optical distortion, the fixed station detection mode of the existing bearing detection equipment is difficult to adapt to the complex curved profile and the fragile characteristics of the LCM, and mechanical contact or light reflection in the detection process may cause damage to the surface of the LCM or detection error.

[0005] Therefore, the application provides a full-automatic appearance detection equipment for LCM. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the appearance full-automatic detection equipment for LCM, comprising a rack, the rack is connected by transverse support rods and longitudinal support rods, a detection platform is fixedly installed on the transverse support rods on the surface of the rack, an upper surface of the detection platform is fixedly installed with a feeding rack mechanism, the feeding rack mechanism comprises an L-shaped side plate fixedly installed on the upper surface of the detection platform, a conveying belt is placed on the lower end surface of the L-shaped side plate, a to-position air cylinder is fixedly installed on the middle part of one side surface of the L-shaped side plate, a positioning baffle is fixedly installed on one end of the to-position air cylinder, the lower end surface of the positioning baffle is placed on one side of the conveying belt, a to-position stop plate is fixedly installed on the conveying belt away from one side of the L-shaped side plate, a first detection mechanism is fixedly installed on the surface of the detection platform close to the feeding rack mechanism, the first detection mechanism comprises a positioning frame fixedly installed on the surface of the detection platform, a static platform is arranged on the upper surface of the positioning frame, a linear guide rail is fixedly installed on the upper surface of the static platform.

[0008] The upper surface of the linear guide rail is slidably connected with a moving cross beam, the upper surface of the moving cross beam is fixedly installed with a mounting plate through screws, the upper surface of the mounting plate is fixedly installed with a line array camera, and the lower end surface of the line array camera is placed on the top of the conveying belt.

[0009] The positioning frame and the L-shaped side plate are in the same vertical plane, panoramic through grooves are formed in the two sides of the positioning frame, the positioning frame is connected with the conveying belt through the two sides of the panoramic through grooves, and a second detection mechanism is fixedly installed on the side of the detection platform away from the positioning frame.

[0010] The second detection mechanism comprises a support plate fixedly installed at the side edge of the upper end surface of the detection platform, a connecting block is slidably connected to the upper surface of the support plate, and a rotating shaft is arranged on the upper surface of the connecting block.

[0011] The upper surface of the rotating shaft is fixedly installed with a single-axis angular rate gyroscope A, the outer convex side of the single-axis angular rate gyroscope A is provided with an outer convex end, and the single-axis angular rate gyroscope A is fixedly installed with a piezoelectric driving rod through the outer convex end.

[0012] The piezoelectric driving rod is fixedly installed with a single-axis angular rate gyroscope B away from the rotating shaft, a locking shaft is sleeved on one side of the single-axis angular rate gyroscope B, and an angular dynamic platform is fixedly installed between the single-axis angular rate gyroscope B and the locking shaft.

[0013] Connecting holes are formed in the circumferential side of the angular dynamic platform, the number of the support plates is three, the lower surfaces of two of the support plates are perpendicular to the detection platform, the circumferential side of the angular dynamic platform is connected with the single-axis angular rate gyroscope B through the connecting holes, and a scale position sensor is fixedly installed on the side of the detection platform close to the support plate.

[0014] The corner type moving platform is placed on one side of the feeding rack mechanism and is oppositely placed with the first detection mechanism, and a high-resolution lens is fixedly installed on the side end face of the corner type moving platform close to the feeding rack mechanism.

[0015] A laser module is fixedly installed on the other side middle part of the corner type moving platform, the laser module comprises a laser fixedly installed on the middle part of the side surface of the corner type moving platform, and an optical machine component is fixedly installed on the inner arc surface of the laser.

[0016] A support shell is fixedly installed on the lower surface of the optical machine component, a motor is fixedly installed on the lower surface of the support shell and is connected with the optical machine component in a matched mode, an optical phased processing plate is fixedly installed on the lower end face of the support shell away from the motor, and the laser module and the high-resolution lens are in the same plane.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The feeding rack mechanism and the first detection mechanism are designed in a full-automatic mode, so that the LCM feeding, positioning and detection are all completed without manual intervention, the fast image acquisition of the linear array camera and the high-resolution lens and the high-speed motion control of the servo motor and the piezoelectric driving rod greatly shorten the single-station detection time, the overall detection efficiency is improved compared with the traditional manual detection, and the large-scale production demand is met.

[0019] 2. The first detection mechanism and the second detection mechanism are used for multi-angle high-definition imaging and laser three-dimensional detection, so that the LCM surface scratches, foreign matters, concave-convex, flatness and other defects are detected in a full range and high precision, and the missed detection rate and the false detection rate are effectively reduced.

[0020] 3. The second detection mechanism and the laser module are used to make the laser uniformly project on the LCM surface, the optical machine component is driven by the motor, the projection angle and shape of the laser can be adjusted according to the detection requirement, the laser covers the LCM detection area, the three-dimensional appearance model of the LCM surface is reconstructed, and the defects such as the tiny concave-convex and flatness error which cannot be recognized by the traditional vision can be detected. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below with reference to the drawings.

[0022] Figure 1 is a perspective view of the full-automatic detection equipment of the present application;

[0023] Figure 2 is a structural schematic view of the feeding rack mechanism of the present application;

[0024] Figure 3 is a whole structural schematic view of the first detection mechanism of the present application;

[0025] Figure 4It is the overall structure schematic view of the second detection mechanism in the application;

[0026] Figure 5 It is the exploded structure schematic view of the laser module in the application;

[0027] Figure 6 It is the structure schematic view of the support plate and the connecting block in the application;

[0028] Figure 7 It is the structure schematic view of the high-resolution lens and the laser module in the application;

[0029] Figure 8 It is the overall front structure schematic view in the application.

[0030] In the figure: 1, rack; 11, detection platform;

[0031] 2, feeding frame mechanism; 21, L-shaped side plate; 22, conveying belt; 23, to position air cylinder; 24, positioning baffle; 25, to position stop plate;

[0032] 3, first detection mechanism; 31, alignment frame; 32, static platform; 33, linear guide rail; 34, moving cross beam; 35, mounting plate; 36, linear array camera;

[0033] 4, second detection mechanism; 41, support plate; 42, connecting block; 43, rotating shaft; 44, single-axis angular rate gyroscope A; 45, piezoelectric driving rod; 46, single-axis angular rate gyroscope B; 47, angular moving platform; 48, ruler position sensor; 5, high-resolution lens;

[0034] 6, laser module; 61, laser; 62, optical machine component; 63, support shell; 64, optical phased processing plate. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application will be further described below in combination with specific embodiments.

[0036] As Figure 1 , Figure 2 and Figure 3As shown, the embodiment of the present application comprises a rack 1, which is composed of transverse support rods and longitudinal support rods, and a detection platform 11 is fixedly installed on the transverse support rods on the surface of the rack 1, an upper surface of the detection platform 11 is fixedly installed with a feeding rack mechanism 2, the feeding rack mechanism 2 comprises an L-shaped side plate 21 fixedly installed on the upper surface of the detection platform 11, a conveying belt 22 is placed on the lower end surface of the L-shaped side plate 21, a to-position air cylinder 23 is fixedly installed on the middle of one side surface of the L-shaped side plate 21, a positioning baffle 24 is fixedly installed on one end of the to-position air cylinder 23, the lower end surface of the positioning baffle 24 is placed on one side of the conveying belt 22, a to-position stop plate 25 is fixedly installed on the conveying belt 22 away from one side of the L-shaped side plate 21, a surface of the detection platform 11 close to the feeding rack mechanism 2 is fixedly installed with a first detection mechanism 3, the first detection mechanism 3 comprises a positioning frame 31 fixedly installed on the surface of the detection platform 11, an upper surface of the positioning frame 31 is provided with a static platform 32, an upper surface of the static platform 32 is fixedly installed with a linear guide rail 33,

[0037] an upper surface of the linear guide rail 33 is slidably connected with a moving cross beam 34, one side of an upper surface of the moving cross beam 34 is fixedly installed with a mounting plate 35 through a screw, an upper surface of the mounting plate 35 is fixedly installed with a line array camera 36, a lower end surface of the line array camera 36 is placed on the top of the conveying belt 22, the positioning frame 31 and the L-shaped side plate 21 are in the same vertical plane, panoramic through grooves are formed on both sides of the positioning frame 31, the positioning frame 31 is connected with the conveying belt 22 through the two sides of the panoramic through grooves, a side of the detection platform 11 away from the positioning frame 31 is fixedly installed with a second detection mechanism 4.

[0038] The equipment takes the rack 1 as the basic frame, the rack 1 is composed of transverse support rods and longitudinal support rods through welding or bolt fastening, forming a stable support structure, the detection platform 11 is fixedly installed on the transverse support rods on the surface of the rack 1 through a bolt, ensuring that the detection platform 11 is horizontal and stable, when the feeding rack mechanism 2 is installed, the L-shaped side plate 21 is fixed on the upper surface of the detection platform 11 through a foundation bolt, ensuring its perpendicularity and stability, then the conveying belt 22 is laid on the lower end surface of the L-shaped side plate 21, and the conveying belt 22 is ensured to run smoothly by adjusting to the appropriate tension, the to-position air cylinder 23 is fixed on the middle of one side surface of the L-shaped side plate 21 through a flange, one end of the piston rod thereof is threadedly connected with the positioning baffle 24, ensuring that the positioning baffle 24 can accurately move in the direction perpendicular to the conveying belt 22 under the driving of the to-position air cylinder 23, the to-position stop plate 25 is fixed on the side of the L-shaped side plate 21 away from the conveying belt 22 through welding or a bolt, for positioning the LCM together with the positioning baffle 24.

[0039] The first detection mechanism 3 is installed, and the alignment frame 31 is fixed on the surface of the detection platform 11 through bolts, so that the alignment frame 31 is in the same vertical plane with the L-shaped side plate 21, and the panoramic through slot on both sides of the alignment frame 31 is accurately connected with the conveying belt 22. The static platform 32 is fixed and installed on the upper surface of the alignment frame 31 through screws, the linear guide rail 33 is installed on the upper surface of the static platform 32 through bolts, the moving cross beam 34 is slidably connected with the linear guide rail 33 through a sliding block, so that the moving cross beam 34 can stably slide on the linear guide rail 33, the installation plate 35 is fixed on one side of the upper surface of the moving cross beam 34 through screws, and the linear array camera 36 is fixedly installed on the upper surface of the installation plate 35 through a special support, so that the lower end surface of the linear array camera 36 faces the top of the conveying belt 22, and the shooting distance and angle are appropriate.

[0040] After the control system sends a starting instruction to the servo motor of the first detection mechanism 3, the servo motor drives the moving cross beam 34 to move transversely along the linear guide rail 33, the linear guide rail 33 is connected with the moving cross beam 34 through a sliding block, the rolling friction is used to greatly reduce the movement resistance, so that the cross beam moves stably, the linear array camera 36 is fixed on the moving cross beam 34, the lens optical axis is vertically aligned with the center of the conveying belt 22, the linear array camera 36 is loaded with a CCD sensor, the LCM surface image is collected row by row at a scanning frequency of 10 kHz during the movement of the cross beam, and each row of image data is output in sequence to form continuous LCM surface image information.

[0041] After positioning, the moving cross beam 34 is driven by the servo motor to move along the direction perpendicular to the conveying belt 22 on the linear guide rail 33, the linear array camera 36 moves synchronously with the moving cross beam 34 to scan and shoot the LCM surface row by row, the linear array camera 36 transmits the photographed image information to the image processing system of the equipment, and the preset image recognition algorithm is used to preliminarily detect and analyze the appearance defects such as scratches and foreign matters on the LCM surface.

[0042] As Figure 4 , Figure 6 and Figure 8As shown, the second detection mechanism 4 includes a support plate 41 fixedly installed at the edge of the upper surface of the detection platform 11, the upper surface of the support plate 41 is slidingly connected with a connecting block 42, the upper surface of the connecting block 42 is provided with a rotating shaft 43, the upper surface of the rotating shaft 43 is fixedly installed with a single-axis angular rate gyroscope A 44, the outer convex side of the single-axis angular rate gyroscope A 44 is provided with an outer convex end, the single-axis angular rate gyroscope A 44 is fixedly installed with a piezoelectric driving rod 45 through the outer convex end on one side, the side away from the rotating shaft 43 of the piezoelectric driving rod 45 is fixedly installed with a single-axis angular rate gyroscope B 46, one side of the single-axis angular rate gyroscope B 46 is sleeved with a locking shaft, an angular moving platform 47 is fixedly installed between the single-axis angular rate gyroscope B 46 and the locking shaft, the circumferential side of the angular moving platform 47 is provided with a connecting hole, the number of the support plate 41 is three, the lower surface of two support plates 41 is perpendicular to the upper surface of the detection platform 11, the circumferential side of the angular moving platform 47 is connected with the single-axis angular rate gyroscope B 46 through the connecting hole, a ruler position sensor 48 is fixedly installed on the side of the detection platform 11 close to the support plate 41, the angular moving platform 47 is placed on the side of the feeding rack mechanism 2 and is oppositely placed with the first detection mechanism 3, a high-resolution lens 5 is fixedly installed on the end surface of the side of the angular moving platform 47 close to the feeding rack mechanism 2.

[0043] When the second detection mechanism 4 is installed, the three support plates 41 are fixedly installed on the edge of the upper surface of the detection platform 11 through bolts, the connecting block 42 is slidingly connected with the upper surface of the support plate 41 through the sliding groove, so as to ensure that the connecting block 42 can slide flexibly on the support plate 41, the rotating shaft 43 is installed on the upper surface of the connecting block 42 through the bearing, so as to realize flexible rotation. The single-axis angular rate gyroscope A 44 is fixedly installed on the upper surface of the rotating shaft 43 through the screw, the piezoelectric driving rod 45 is fixed on the outer convex end on one side of the single-axis angular rate gyroscope A 44, the single-axis angular rate gyroscope B 46 is connected with the side away from the rotating shaft 43 of the piezoelectric driving rod 45 through the locking shaft, the angular moving platform 47 is fixedly connected with the single-axis angular rate gyroscope B 46 through the connecting hole, so as to ensure that the angular moving platform 47 can realize multi-angle flexible adjustment under the cooperation of the single-axis angular rate gyroscope A 44, the single-axis angular rate gyroscope B 46 and the piezoelectric driving rod 45, the ruler position sensor 48 is fixedly installed on the side of the detection platform 11 close to the support plate 41 through the support, which is used for detecting the position of the angular moving platform 47, the high-resolution lens 5 is fixedly installed on the end surface of the side of the angular moving platform 47 close to the feeding rack mechanism 2 through the special lens seat, the laser 61 in the laser module 6 is fixedly installed on the middle of the other surface of the angular moving platform 47 through the bolt, the optical machine component 62 is fixedly installed on the inner convex surface of the laser 61, the support shell 63 is fixedly installed on the lower surface of the optical machine component 62 through the bolt, the motor is installed on the lower surface of the support shell 63 and is adaptively connected with the optical machine component 62 through the shaft coupling, the optical phase control processing plate 64 is fixedly installed on the side away from the motor of the lower end surface of the support shell 63, and it is ensured that the laser module 6 and the high-resolution lens 5 are in the same plane.

[0044] After the preliminary detection is completed by the first detection mechanism 3, the angular moving platform 47 is adjusted to a suitable angle and position under the cooperation of the single-axis angular rate gyroscope A 44, the single-axis angular rate gyroscope B 46 and the piezoelectric driving rod 45 according to the detection requirements. At this time, the position information of the angular moving platform 47 is monitored in real time by the scale sensor 48 and fed back to the control system of the equipment, so as to ensure the accurate position of the angular moving platform 47. The high-resolution lens 5 collects high-definition images of the LCM to obtain more detailed image information of the surface of the LCM. At the same time, the laser 61 in the laser module 6 emits laser, which is processed by the optical machine component 62 and then projected on the surface of the LCM for detecting the flatness, micro concave-convex and other defects of the surface of the LCM. The laser reflection signal is received and processed by the optical phased processing plate 64, and combined with the image information collected by the high-resolution lens 5 to detect the appearance of the LCM more comprehensively and accurately. The detection result is also transmitted to the image processing system of the equipment, and the detection results of the first detection mechanism 3 are integrated and analyzed to finally determine whether the LCM is qualified.

[0045] As shown in Figure 7 and Figure 5 , the other side of the middle part of the angular moving platform 47 is fixedly installed with a laser module 6. The laser module 6 includes a laser 61 fixedly installed on the middle part of the surface of one side of the angular moving platform 47. The inner arc surface of the laser 61 is fixedly installed with an optical machine component 62. The lower surface of the optical machine component 62 is fixedly installed with a support shell 63. The lower surface of the support shell 63 is fixedly installed with a motor. The motor is connected with the optical machine component 62 in a matched mode. The optical phased processing plate 64 is fixedly installed on the side of the lower end surface of the support shell 63 away from the motor. The laser module 6 is in the same plane with the high-resolution lens 5.

[0046] The laser 61 as the core of the laser module 6 emits red laser beams. After the laser beams enter the optical machine component 62, they first pass through a collimating lens to convert the divergent laser beams into parallel beams, thereby improving the directionality of the laser. Then, the parallel beams are processed into uniform linear laser by a diffractive optical element DOE, so that the laser can be uniformly projected on the surface of the LCM. The optical machine component 62 is driven by the motor, and the projection angle and shape of the linear laser can be adjusted according to the detection requirements to ensure that the laser covers the LCM detection area.

[0047] When the line laser is projected onto the LCM surface, if there is a flatness error or a small concave-convex on the LCM surface, the reflection path of the laser will change. The optical phased processing board 64 is built-in with an array of channel photodetectors, which is used to receive the reflected laser signal. Each photodetector corresponds to a specific detection area, and converts the received light signal into an electrical signal. The intensity of the electrical signal is related to the intensity of the reflected light, and the intensity of the reflected light is related to the topography of the LCM surface. Thus, the topography information of the LCM surface is converted into electrical signal data. The optical phased processing board 64 amplifies, filters and pre-processes the channel electrical signal data, and calculates the surface topography data through a phase solving algorithm. The algorithm is based on the principle of laser interference, analyzes the phase difference of the reflected light at different positions, and reconstructs the three-dimensional topography model of the LCM surface.

[0048] Specifically, the LCM to be detected is placed on the conveying belt 22 of the feeding frame mechanism 2, and the driving motor of the conveying belt 22 is started to move the LCM along the conveying belt 22 towards the first detection mechanism 3. When the LCM approaches the in-place stop plate 25, the in-place cylinder 23 is started to push the positioning baffle 24 to move towards the in-place stop plate 25, clamping the LCM between the positioning baffle 24 and the in-place stop plate 25, achieving precise positioning of the LCM and ensuring stable position of the LCM in the subsequent detection process.

[0049] After positioning, the moving cross beam 34 is driven by the servo motor on the linear guide rail 33 to move in a direction perpendicular to the conveying belt 22. The line array camera 36 moves synchronously with the moving cross beam 34 to scan and shoot the LCM surface line by line. The line array camera 36 transmits the captured image information to the image processing system of the equipment, and preliminarily detects and analyzes the appearance defects such as scratches and foreign matters on the LCM surface through the preset image recognition algorithm.

[0050] After the first detection mechanism 3 completes the preliminary detection, the angular moving platform 47 is adjusted to the appropriate angle and position according to the detection requirements under the cooperation of the single-axis angular rate gyroscope A 44, the single-axis angular rate gyroscope B 46 and the piezoelectric driving rod 45. At this time, the position information of the angular moving platform 47 is monitored by the scale sensor 48 in real time and fed back to the control system of the equipment, ensuring the accurate position of the angular moving platform 47. The high-resolution lens 5 collects high-definition images of the LCM to obtain more detailed image information of the LCM surface. At the same time, the laser 61 in the laser module 6 emits laser light, which is processed by the light machine component 62 and projected on the LCM surface for detecting the flatness, small concave-convex and other defects of the LCM surface. The laser reflection signal is received and processed by the optical phased processing board 64, and combined with the image information collected by the high-resolution lens 5 to detect the appearance of the LCM more comprehensively and accurately. The detection results are also transmitted to the image processing system of the equipment for integrated analysis with the detection results of the first detection mechanism 3, and finally determine whether the LCM is qualified.

[0051] According to the analysis result of the image processing system, if the LCM is qualified, the conveying belt 22 continues to run, and the LCM is conveyed to the next process; if the LCM is unqualified, the equipment control system issues an instruction to remove the unqualified LCM from the conveying belt 22 through the sorting mechanism and place it in a designated waste area, thereby completing the entire LCM appearance detection process.

[0052] The above-mentioned front, rear, left, right, top and bottom are based on the drawings in the specification Figure 1 The front of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on according to the standard of the human observation angle.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0054] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fully automatic appearance inspection device for LCM, characterized by: The invention comprises a frame (1), wherein the frame (1) is connected by a transverse support rod and a longitudinal support rod, a detection platform (11) is fixedly installed on the transverse support rod on the surface of the frame (1), a loading rack mechanism (2) is fixedly installed on the upper surface of the detection platform (11), the loading rack mechanism (2) comprises an L-shaped side plate (21) fixedly installed on the upper surface of the detection platform (11), a conveying belt (22) is placed on the lower end surface of the L-shaped side plate (21), a positioning cylinder (23) is fixedly installed in the middle of one side surface of the L-shaped side plate (21), a positioning baffle (24) is fixedly installed on one end of the positioning cylinder (23), the lower end surface of the positioning baffle (24) is placed on one side of the conveying belt (22), a positioning stop plate (25) is fixedly installed on the side of the L-shaped side plate (21) away from the conveying belt (22), and a first detection mechanism (3) is fixedly installed on the surface of the detection platform (11) close to the loading rack mechanism (2); The first detection mechanism (3) comprises an alignment frame (31) fixedly mounted on the surface of the detection platform (11); a static platform (32) is provided on the upper surface of the alignment frame (31); and a linear guide rail (33) is fixedly mounted on the upper surface of the static platform (32); The alignment frame (31) and the L-shaped side plate (21) are located in the same vertical plane, and panoramic slots are provided on both sides of the alignment frame (31). The alignment frame (31) is connected to the conveyor belt (22) through the panoramic slots on both sides, and a second detection mechanism (4) is fixedly installed on the side of the detection platform (11) away from the alignment frame (31); The second detection mechanism (4) includes a support plate (41) fixedly mounted on an edge of one side of the upper end surface of the detection platform (11), the upper surface of the support plate (41) is slidably connected to a connecting block (42), the upper surface of the connecting block (42) is provided with a rotating shaft (43), the upper surface of the rotating shaft (43) is fixedly mounted with a single-axis angular velocity gyroscope A (44), an outer arc surface of the single-axis angular velocity gyroscope A (44) is provided with an outer convex end on one side, the single-axis angular velocity gyroscope A (44) is fixedly mounted with a piezoelectric driving rod (45) through one side of the outer convex end, the side of the piezoelectric driving rod (45) away from the rotating shaft (43) is fixedly mounted with a single-axis angular velocity gyroscope B (46), a locking shaft is sleeved on one side of the single-axis angular velocity gyroscope B (46), and an angular moving platform (47) is fixedly mounted between the single-axis angular velocity gyroscope B (46) and the locking shaft; A laser module (6) is fixedly mounted in the middle of the other side of the angular movable platform (47). The laser module (6) comprises a laser (61) fixedly mounted in the middle of the surface of one side of the angular movable platform (47). An optical machine component (62) is fixedly mounted on the inner arc surface of the laser (61).

2. The fully automatic appearance inspection device for LCM according to claim 1, characterized in that: The upper surface of the linear guide rail (33) is slidably connected to a moving beam (34), a mounting plate (35) is fixedly mounted on one side of the upper surface of the moving beam (34) by screws, a linear array camera (36) is fixedly mounted on the upper surface of the mounting plate (35), and the lower end surface of the linear array camera (36) is placed on the top of the conveyor belt (22).

3. The fully automatic appearance inspection device for LCM according to claim 2, characterized in that: The angular moving platform (47) is provided with connection holes on its circumferential sides. The number of the support plates (41) is three. The lower surfaces of the two support plates (41) are perpendicular to the detection platform (11). The angular moving platform (47) is connected to the single-axis angular velocity gyroscope B (46) on its circumferential sides through the connection holes. A scale sensor (48) is fixedly installed on one side of the detection platform (11) close to the support plate (41).

4. The fully automatic appearance inspection device for LCM according to claim 3, characterized in that: The angular movable platform (47) is placed on one side of the loading rack mechanism (2) and is placed opposite to the first detection mechanism (3). A high-resolution lens (5) is fixedly mounted on the end surface of the angular movable platform (47) on one side close to the loading rack mechanism (2).

5. The fully automatic appearance inspection device for LCM according to claim 1, characterized in that: A support shell (63) is fixedly mounted on the lower surface of the optical machine component (62), a motor is fixedly mounted on the lower surface of the support shell (63), the motor is adaptively connected to the optical machine component (62), an optical phase control processing board (64) is fixedly mounted on the side of the lower end surface of the support shell (63) away from the motor, and the laser module (6) and the high-resolution lens (5) are located in the same plane.

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