LED polarity detection device

Abstract

The application discloses an LED polarity detection device, which comprises a rack, a camera assembly, a light source and a control module, the rack is provided with a transmission test table for placing an LED, the camera assembly comprises an angle driving assembly and a camera device, the angle driving assembly is arranged on the rack, and the angle driving assembly is drivingly connected with the camera device to drive the camera device to rotate, and the camera device is located on the top of the transmission test table, the light source is arranged correspondingly to the transmission test table, and the control module is electrically connected with the camera assembly and the light source respectively to control the camera assembly and the light source. The technical scheme can not only improve the detection efficiency of the positive and negative electrodes of the LED, avoid the missed detection and misjudgment, but also avoid the work intensity of the operator being high and the vision being damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic component detection, in particular to a LED polarity detection device. BACKGROUND

[0002] LED is short for light emitting diode, which is made of compounds containing gallium, arsenic, phosphorus, nitrogen, etc. Compared with traditional lamps, LED lamps have the advantages of energy saving, environmental protection, good color rendering and response speed. Various benefits make it widely used in various fields, such as decoration, lighting, etc.

[0003] LED production process is more, among them, LED polarity discrimination is a very important process, and LED polarity discrimination is very important, not only because LED polarity discrimination will affect the function of the circuit, and if the LED polarity discrimination is wrong, it may also cause major quality problems, and may also cause opposite effects. With the miniaturization and densification of LED, the polarity of the mounted LED is difficult to check, and in most cases it can only be checked by artificial magnifying glass, which is low in polarity detection efficiency. SUMMARY

[0004] The main purpose of the present application is to provide a LED polarity detection device, which aims to improve the efficiency of LED polarity detection.

[0005] To achieve the above purpose, the LED polarity detection device provided by the present application comprises:

[0006] The rack is provided with a transmission test table for placing the LED.

[0007] The camera assembly comprises an angle driving assembly and a camera device, the angle driving assembly is arranged on the rack, and the angle driving assembly is drivingly connected with the camera device to drive the camera device to rotate, and the camera device is located on the top of the transmission test table.

[0008] The light source part is arranged corresponding to the transmission test table; and

[0009] The control module is electrically connected with the camera assembly and the light source part respectively to control the camera assembly and the light source part.

[0010] Optionally, the angle driving assembly comprises a motor, a transmission assembly and a mounting piece, the motor is drivingly connected with the transmission assembly, the transmission assembly is drivingly connected with the mounting piece, the camera device is fixed with the mounting piece, and the motor is electrically connected with the control module.

[0011] Optionally, the mounting member comprises a mounting cylinder and a plurality of bearings, the mounting cylinder is drivingly connected with the transmission assembly, the inner ring of the bearings is fixed with the mounting cylinder, the outer ring of the bearings is connected with the rack, and the camera device is connected with the mounting cylinder.

[0012] Optionally, a plurality of bearings are provided, and the plurality of bearings are arranged at intervals along the length direction of the mounting cylinder.

[0013] Optionally, the light source member is configured as a spherical integration light source.

[0014] Optionally, the spherical integration light source is provided with a window, and the window is located below the camera head of the camera device.

[0015] Optionally, the LED polarity detection device comprises a displacement driving assembly, the displacement driving assembly is electrically connected with the control module, the displacement driving assembly is drivingly connected with the camera assembly, and the displacement driving assembly is used to drive the camera assembly to move towards the LED.

[0016] Optionally, the LED polarity detection device comprises a mounting plate, the camera assembly and the light source member are arranged on the mounting plate, and the displacement driving assembly is drivingly connected with the mounting plate.

[0017] Optionally, the displacement driving assembly comprises a transverse driving member and a longitudinal driving member, the control module is electrically connected with the transverse driving member and the longitudinal driving member respectively, the transverse driving member is drivingly connected with the mounting plate to drive the mounting plate to move transversely, and the longitudinal driving member is drivingly connected with the transverse driving member to drive the transverse driving member and the mounting plate to move longitudinally.

[0018] Optionally, the transmission test bench comprises a placing plate, a width adjusting driving member and two width adjusting members, the width adjusting driving member is electrically connected with the control module, the placing plate is provided between the two width adjusting members, and the width adjusting driving member is drivingly connected with the width adjusting members to drive the two width adjusting members to move away from or close to each other.

[0019] The above LED polarity detection device has at least the following beneficial effects:

[0020] The technical scheme of the present application adopts a rack, a camera assembly, a light source and a control module, the rack is provided with a transmission test table for placing the LED; the camera assembly comprises an angle driving assembly and a camera device, the angle driving assembly is arranged on the rack, and the angle driving assembly is drivingly connected with the camera device to drive the camera device to rotate, and the camera device is located on the top of the transmission test table; the light source is arranged corresponding to the transmission test table; and the control module is electrically connected with the camera assembly and the light source to control the camera assembly and the light source. Specifically, according to the determination principle that the long pin is the positive electrode and the short pin is the negative electrode, when detecting the polarity of the LED, the LED is placed on the transmission test table, the light source is turned on, and the camera device arranged on the top of the transmission test table is used to take pictures of the LED on the transmission test table, and the pictures are transmitted to the display screen of the control module for the user to determine the positive and negative electrodes of the LED, or the camera device transmits the taken pictures to the test software of the control module to determine the pictures, and the result is transmitted to the display screen to check whether the positive and negative electrodes of the LED are reversed, thereby avoiding the electronic components from being burned when used. Such a detection method can not only improve the detection efficiency of the positive and negative electrodes of the LED, avoid the missed detection and misjudgment, but also avoid the work intensity of the operator being too large to cause the vision to be damaged. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present application.

[0023] Figure 2 It is a structural schematic diagram of a part of the LED polarity detection device.

[0024] Figure 3 It is Figure 2 It is an enlarged view of a part of A in the middle.

[0025] Figure 4 It is a structural schematic diagram of another part of the LED polarity detection device.

[0026] Figure 5 It is a structural schematic diagram of the camera assembly and the light source of the LED polarity detection device.

[0027] Figure 6 It is Figure 5 It is an exploded structural schematic diagram of the camera assembly and the light source of the LED polarity detection device.

[0028] Figure 7 For Figure 1 Schematic diagram of camera assembly structure of LED polarity detection device;

[0029] Figure 8 For Figure 1 Explosive structural schematic diagram of transmission test bench of LED polarity detection device.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031]

[0032]

[0033] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work under the premise that the present application falls within the scope of protection.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0038] The present application provides an LED polarity detection device.

[0039] Reference Figures 1 to 4 In an embodiment of the present application, the LED polarity detection device comprises a rack 100, a camera assembly 200, a light source 300 and a control module 400, the rack 100 is provided with a transmission test table 110 for placing the LED; the camera assembly 200 comprises an angle driving assembly 210 and a camera device 220, the angle driving assembly 210 is arranged on the rack 100, and the angle driving assembly is drivingly connected with the camera device 220 to drive the camera device 220 to rotate, and the camera device 220 is located on the top of the transmission test table 110; the light source 300 is arranged corresponding to the transmission test table 110; the control module 400 is electrically connected with the camera assembly 200 and the light source 300 respectively to control the camera assembly 200 and the light source 300.

[0040] Specifically, according to the determination principle that the long pin is the positive electrode and the short pin is the negative electrode, when detecting the polarity of the LED, the LED is placed on the transmission test table 110, the light source 300 is turned on, and the camera device 220 arranged on the top of the transmission test table 110 is used to take pictures of the LED on the transmission test table 110, and the pictures are transmitted to the display screen of the control module 400 for the user to determine the positive and negative electrodes of the LED, or the camera device 220 transmits the taken pictures to the test software of the control module 400 to determine the pictures, and the result is transmitted to the display screen to check whether the positive and negative electrodes of the LED are reversed, so as to avoid the electronic components from being burned when used. Such detection method not only can improve the detection efficiency of the positive and negative electrodes of the LED, avoid the missed detection and misjudgment, but also can avoid the work intensity of the operator being too large to cause the vision damage.

[0041] Further, whether the diameter of the filament is normal can also be determined clearly through the photographed photo, such as observing abnormal conditions that the filament is disconnected or the diameters of the filaments are different, thereby improving the product quality of the LED.

[0042] Further, the arrangement directions of the filaments of the LED are different, and the angle driving assembly 210 is arranged to adjust the angle of the camera device 220, so that the photos photographed by the camera device 220 are consistent in direction, which is convenient for the operator to observe and determine, and is also convenient for the test software to determine the photos, thereby increasing the determination efficiency.

[0043] Further, the operator can input the data of the arrangement directions of the filaments at different positions in the control module 400 in advance, so that after one photo data is photographed, the control module 400 automatically controls the angle driving assembly 210 to drive the camera device 220 to rotate to the preset angle, thereby increasing the efficiency of the LED polarity determination. Of course, the present application is not limited to this, and in other embodiments, the data of the arrangement directions of the filaments at different positions can not be input in advance, and after a group of photo data is photographed, the operator controls the rotation angle of the angle driving assembly 210 through the control module 400, thereby making the camera device 220 rotate to the suitable angle.

[0044] Further, the camera device 220 includes a camera and a telecentric lens, so that the imaging effect of the photo is increased. Of course, the present application is not limited to this, and in other embodiments, the camera device 220 can only include a camera.

[0045] Further, the pixel range of the camera is between 400W and 600W, and the telecentric lens adopts a telecentric lens with a magnification of 0.6 to 0.8.

[0046] Further, in the present embodiment, a 500W pixel camera is adopted, and a 0.8 times telecentric lens is matched, so that the imaging is clear. Of course, the present application is not limited to this, and in other embodiments, a 400W pixel camera can also be adopted, and a 0.8 times telecentric lens is matched.

[0047] Reference Figures 5 to 7Optionally, the angle driving assembly 210 comprises a motor 211, a transmission assembly 212 and a mounting member 213, the motor 211 is drivingly connected with the transmission assembly 212, the transmission assembly 212 is drivingly connected with the mounting member 213, the camera device 220 is fixed with the mounting member 213, the motor 211 is electrically connected with the control module 400, it can be understood that the motor 211 drives the transmission assembly 212 to move, the transmission assembly 212 drives the mounting member 213 to rotate, and then drives the camera device 220 to rotate, so that the accuracy of adjusting the angle of the camera device 220 can be increased. Of course, the present application is not limited to this, in other embodiments, the angle driving assembly 210 can also only comprise the motor 211 and the mounting member 213, the motor 211 directly drives the mounting member 213 to rotate, thereby driving the camera device 220 to rotate.

[0048] Further, the transmission assembly 212 is configured as a belt pulley assembly, because the belt pulley assembly has stable transmission operation, low noise and low vibration, which can reduce the operation noise of the angle driving assembly 210, the belt pulley assembly has simple structure and is convenient to adjust, which can increase the installation and adjustment efficiency; the belt pulley transmission has overload protection function, which can increase the service life of the angle driving assembly 210; the center distance adjustment range of the belt pulley transmission is large, which can increase the flexibility of installation. Of course, the present application is not limited to this, in some other embodiments, the transmission assembly 212 can also be configured as a gear assembly.

[0049] Optionally, the mounting member 213 comprises a mounting cylinder 213a and a plurality of bearings 213b, the mounting cylinder 213a is drivingly connected with the transmission assembly 212, the inner ring of the bearing 213b is fixed with the mounting cylinder 213a, the outer ring of the bearing 213b is connected with the rack 100, and the camera device 220 is connected with the mounting cylinder 213a; it can be understood that a plurality of bearings 213b are arranged on the mounting sleeve, and the outer ring of the bearing 213b is fixed with the rack 100, so that the mounting cylinder 213a can be prevented from shaking when rotating, and the camera device 220 can rotate more stably. Of course, the present application is not limited to this, in some other embodiments, the mounting member 213 can also comprise a camera fixing plate, the camera device 220 is fixed on the camera fixing plate, and the camera fixing plate is drivingly connected with the transmission assembly 212.

[0050] Optionally, a plurality of bearings 213b are arranged, and the plurality of bearings 213b are arranged along the length direction of the mounting cylinder 213a; it can be understood that arranging a plurality of bearings 213b can increase the stability of the mounting cylinder 213a when rotating.

[0051] Further, in an embodiment, two bearings 213b are provided, and the two bearings 213b are arranged at intervals along the length direction of the mounting cylinder 213a. In a second embodiment, three bearings 213b can also be provided, and the three bearings 213b are arranged at intervals along the length direction of the mounting cylinder 213a; the specific number of bearings 213b is not limited here.

[0052] Further, the mounting member 213 further comprises a mounting base 213c, the mounting base 213c is provided with a mounting through hole, the mounting through hole is provided with the mounting through hole, the inner ring of the bearing 213b is fixed with the outer side surface of the mounting cylinder 213a, the outer ring of the bearing 213b is fixed with the hole wall of the mounting through hole, and the mounting base 213c is fixed with the rack 100. The mounting base 213c can increase the stability of the running of the camera device 220 and avoid shaking of the camera device 220 during rotation. Of course, the present application is not limited to this, and in other embodiments, the outer ring of the bearing 213b can be directly fixed with the rack 100.

[0053] Further, the camera assembly 200 further comprises a protective frame, the protective frame is provided with a protective cavity, and the angle driving assembly 210 is arranged in the protective cavity. The protective frame can protect the angle driving assembly 210, avoid the angle driving assembly 210 being eroded by dust and other impurities, and increase the service life of the angle driving assembly 210.

[0054] Further, the mounting member 213 further comprises a fixing ring, the fixing ring is sleeved on the outer side surface of the mounting cylinder 213a, and the fixing ring is located between the bearing 213b and the transmission assembly 212. The fixing ring is connected with the inner ring of the bearing 213b, so as to prevent the mounting cylinder 213a from being loosened or generated.

[0055] Further, the mounting member 213 further comprises a fixing plate, the fixing plate is fixed with the one end of the mounting cylinder 213a away from the transmission assembly 212, and the camera device 220 is fixed with the fixing plate. Since the mounting position of the camera device 220 is located at the side, the fixing plate is beneficial to fixing the camera device 220. Of course, the present application is not limited to this, and in other embodiments, the camera device 220 can be directly fixed with the one end of the mounting cylinder 213a away from the transmission assembly 212, without the fixing plate.

[0056] Further, in an embodiment, the camera assembly 200 further comprises a sliding plate, the sliding plate is arranged on the rack 100 and slides along the up-down direction of the rack 100, and the camera assembly 200 is arranged on the sliding plate. This is beneficial to adjusting the distance between the camera device 220 of the camera assembly 200 and the transmission test table 110, thereby being beneficial to adjusting the distance between the camera device 220 and the LED, and increasing the shooting effect.

[0057] Further, the mounting seat 213c is fixed with the sliding plate, the motor 211 of the angle driving assembly 210 is fixed with the sliding plate, and the protective frame is fixed with the sliding plate.

[0058] Optionally, the light source 300 is configured as a spherical integration light source, because the hemispherical shell of the spherical integration light source can fully cover the detection object, without the aid of additional light, can provide uniform light for multiple surfaces of the larger size detection object at the same time, and each angle has no shadow and no strong reflection, thereby the photographing effect of the camera 220 can be increased. Of course, the present application is not limited to this, and in other embodiments, the light source 300 can also be configured as a flat LED lamp.

[0059] Optionally, the spherical integration light source is provided with a window 310 located below the camera of the camera 220; it can be understood that the camera of the camera 220 shoots the filament of the LED through the window 310, which can increase the shooting effect of the camera 220.

[0060] Further, the rack 100 is further provided with a light source support, the light source support includes a first fixed segment fixed with the rack 100 and a second fixed segment perpendicular to the first fixed segment, the second fixed segment is provided with a light through hole for the light source to pass through, and the hole wall of the light through hole is fixed with the shell wall of the spherical integration light source, so that the stability of the fixation can be increased, and the lighting effect and the shooting effect can be increased. Of course, the present application is not limited to this, and in other embodiments, the light source support can only include the first fixed segment, one side of the first fixed segment is fixed with the rack 100, the other side of the first fixed segment is fixed with the side shell wall of the spherical integration light source, and the light through hole is not provided,

[0061] Further, the light emitted by the light source is blue light, because the emission intensity is large, the light transmittance is increased, and the shooting effect is increased. Of course, the present application is not limited to this, and in other embodiments, the light emitted by the light source can also be purple light.

[0062] Reference Figure 4 Optionally, the LED polarity detection device includes a displacement driving assembly 500, the displacement driving assembly 500 is electrically connected with the control module 400, the displacement driving assembly 500 is drivingly connected with the camera assembly 200, and the displacement driving assembly 500 is used to drive the camera assembly 200 to move towards the LED; it can be understood that the displacement driving assembly 500 is arranged to drive the camera assembly 200 to move towards the LED, so that the shooting effect of the camera 220 can be increased.

[0063] Optionally, the LED polarity detection device comprises a mounting plate 600, the camera assembly 200 and the light source 300 are arranged on the mounting plate 600, and the displacement driving assembly 500 is drivingly connected with the mounting plate 600; it can be understood that the light source 300 and the camera assembly 200 are arranged on the mounting plate 600 at the same time, and the displacement driving assembly 500 directly drives the mounting plate 600 to move towards the LED, so that the movement of the light source 300 and the camera assembly 200 can be driven at the same time, which can not only improve the light source brightness, make the camera device 220 closer to the LED, improve the camera effect, but also improve the driving efficiency of the light source 300 and the camera assembly 200. Of course, the present application is not limited to this, and in some other embodiments, a moving driving assembly is arranged corresponding to the camera assembly 200 and the light source 300 respectively to drive the light source 300 and the camera assembly 200 to move towards the LED respectively.

[0064] Further, the sliding plate is slidingly connected with the mounting plate 600, the light source support is fixed with the mounting plate 600 and located at the lower end of the sliding plate.

[0065] Optionally, the displacement driving assembly 500 comprises a transverse driving member 510 and a longitudinal driving member 520, the control module 400 is electrically connected with the transverse driving member 510 and the longitudinal driving member 520 respectively, the transverse driving member 510 is drivingly connected with the mounting plate 600 to drive the mounting plate 600 to move transversely, and the longitudinal driving member 520 is drivingly connected with the transverse driving member 510 to drive the transverse driving member 510 and the mounting plate 600 to move longitudinally; it can be understood that in this way, the LED can be located below the light source 300 and the camera device 220, which is convenient for the camera device 220 to take photos.

[0066] Further, the transverse driving member 510 and / or the longitudinal driving member 520 comprises a servo motor and a screw rod, the servo motor is drivingly connected with the screw rod, a sliding block is arranged on the screw rod, and the sliding block is fixed with the mounting plate 600; such a displacement driving member has simple structure and is convenient to drive. Of course, the present application is not limited to this, and in the second embodiment, the transverse driving member 510 and / or the longitudinal driving member 520 can also comprise a screw rod and a stepping motor, the stepping motor is drivingly connected with the screw rod, a sliding block is arranged on the screw rod, and the sliding block is fixed with the mounting plate 600. Of course, the present application is not limited to this, and in the third embodiment, the transverse driving member 510 and / or the longitudinal driving member 520 can also be configured as a linear motor, the linear motor is drivingly connected with the mounting plate 600.

[0067] Reference Figure 8Optionally, the transmission test bench 110 comprises a placing plate 111, a width adjusting driving member 112 and two width adjusting members 113, the width adjusting driving member 112 is electrically connected with the control module 400, the placing plate 111 is arranged between the two width adjusting members 113, and the width adjusting driving member 112 is drivingly connected with the width adjusting members 113 to drive the two width adjusting members 113 to move away from or close to each other; it can be understood that, due to the different sizes of the LEDs, the size of the placing plate 111 will also be different according to the size of the LED; the width adjusting driving member 112 is arranged to drive the two width adjusting members 113 to automatically adjust the width to adapt to the LED products of different widths.

[0068] Further, the width adjusting driving member 112 comprises a width adjusting motor 112a and a screw rod 112b, the width adjusting motor 112a is drivingly connected with the screw rod 112b, the screw rod 112b is drivingly connected with the width adjusting members 113, the placing plate 111 is arranged on the top of the screw rod 112b and between the two width adjusting members 113, such a width adjusting driving member 112 runs stably and has the reversibility of transmission, which is convenient for repeatedly adjusting the distance between the two width adjusting members 113. Of course, the present application is not limited to this, and in some other embodiments, the width adjusting driving member 112 can also comprise a linear motor, the linear motor is drivingly connected with the width adjusting members 113 to drive the width adjusting members 113 to move close to or away from the other width adjusting member 113.

[0069] Further, in order to avoid the influence of external visible light, the camera assembly 200 and the light source member 300 are arranged in the housing of the rack 100, which can increase the shooting effect.

[0070] Further, one side of the width adjusting member 113 facing the other width adjusting member 113 is provided with a conveying assembly, the conveying assembly comprises a conveying belt and a stepping motor, the stepping motor is drivingly connected with the conveying belt, and the placing plate 113 is arranged on the two conveying belts at opposite ends, which is conducive to conveying the placing plate 111 provided with the LED into the housing for detection and conveying out of the housing after detection; in this way, the efficiency of LED detection can be increased. Of course, the present application is not limited to this, and in the second embodiment, one side of the width adjusting member 113 facing the other width adjusting member 113 is provided with a conveying assembly, the conveying assembly comprises a conveying belt and a single-phase induction motor, and the single-phase induction motor is drivingly connected with the conveying belt.

[0071] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made under the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An LED polarity detection device, characterized in that, include: The rack is equipped with a transmission test bench for placing LEDs. A camera assembly, comprising an angle driving component and a camera device, wherein the angle driving component is disposed on the frame and is drivenly connected to the camera device to drive the camera device to rotate, and the camera device is located on top of the transmission test bench; A light source component, wherein the light source component is configured corresponding to the transmission test bench; as well as A control module is electrically connected to both the camera assembly and the light source to control the camera assembly and the light source. The LED polarity detection device includes a displacement driving component, which is electrically connected to the control module and drivingly connected to the camera component. The displacement driving component is used to drive the camera component to move toward the LED. The LED polarity detection device includes a mounting plate, the camera assembly and the light source are disposed on the mounting plate, and the displacement driving assembly is drivenly connected to the mounting plate; The displacement driving assembly includes a lateral driving component and a longitudinal driving component. The control module is electrically connected to the lateral driving component and the longitudinal driving component respectively. The lateral driving component is driven to the mounting plate to drive the mounting plate to move laterally. The longitudinal driving component is driven to the lateral driving component to drive the lateral driving component and the mounting plate to move longitudinally. Two transmission test benches are arranged along the longitudinal direction of the frame. Each transmission test bench includes a placement plate, a width adjustment drive, and two width adjustment components. The width adjustment drive is electrically connected to the control module. The placement plate is located between the two width adjustment components. The width adjustment drive is driven to drive the two width adjustment components to move away from or towards each other. The width adjustment drive includes a width adjustment motor and a lead screw. The width adjustment motor is driven to the lead screw, and the lead screw is driven to the width adjustment component. The placement plate is placed on top of the lead screw and located between the two width adjustment components. The width-adjusting component has a conveying assembly on the side facing the other width-adjusting component. The conveying assembly includes a conveyor belt and a stepper motor. The stepper motor is driven and connected to the conveyor belt. The placement plate is placed on the two conveyor belts at opposite ends. The light source is configured as a spherical integrating light source, and the light emitted by the light source is blue light. The camera device includes a camera and a telecentric lens. The camera has a pixel range of 400W to 600W, and the telecentric lens is a 0.6 to 0.8x telecentric lens. The angle driving component includes a motor, a transmission component, and a mounting component. The motor is driven to the transmission component, the transmission component is driven to the mounting component, the camera device is fixed to the mounting component, and the motor is electrically connected to the control module. The mounting component includes a mounting cylinder and several bearings. The mounting cylinder is drivenly connected to the transmission assembly. The inner ring of the bearing is fixed to the mounting cylinder. The outer ring of the bearing is connected to the frame. The camera device is connected to the mounting cylinder. The bearing is provided in multiple manner, and the multiple bearings are spaced apart along the length direction of the mounting cylinder.

2. The LED polarity detection device as described in claim 1, characterized in that, The spherical integrating light source is provided with a viewing window, which is located below the camera of the camera device.

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