Light emitting diode detection device

Abstract

The invention discloses a light-emitting diode detection device, which comprises a vibration disc, a transfer assembly, a joint control assembly, a detection assembly and a blanking assembly, and is characterized in that a blanking frame is arranged on the vibration disc; the transferring assembly comprises a first box body, a driving mechanism, a first suction tube and a first negative pressure fan, and the driving mechanism is used for controlling the first suction tube and transferring the light-emitting diodes on the discharging frame to the detection assembly; the first suction cylinder and the first negative pressure fan are used for carrying out adsorption control on the light emitting diode, the joint control assembly is used for linkage control of rotation of an insertion block, the detection assembly comprises a second box body and the insertion block, and the second box body is provided with a first electrode plate and a second electrode plate; the plugging block is used for rotationally contacting the first electrode plate and the second electrode plate; the discharging assembly is arranged on the second box body and used for sorting and discharging the light-emitting diodes on the inserting blocks. Therefore, the light-emitting diode can be continuously detected, and the detection efficiency of the light-emitting diode is improved.

Description

Technical Field

[0001] The present application relates to the technical field of light emitting diodes, and in particular to a light emitting diode detection device. Background Art

[0002] A light emitting diode (LED) is a semiconductor device that can convert electrical energy into light energy. Its working principle is that when current passes through the diode, electrons and holes combine to release photons and produce visible light. With its high efficiency, long life, small size and rich colors, LEDs are widely used in lighting, display screens, indicator lights and other fields. Due to the continuous growth of market demand, the quality and performance of LEDs directly affect the reliability of the final product and user experience, so the detection of LEDs is particularly important.

[0003] In the original LED inspection, relevant staff are required to plug the diodes into the inspection table one by one, and judge whether the LEDs are qualified according to whether the plugged diodes emit light, and pick out the unqualified diodes to complete the LED inspection. However, this inspection method is time-consuming and labor-intensive, which affects the inspection efficiency of the LEDs. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, the purpose of the present application is to provide a light emitting diode detection device that can continuously detect light emitting diodes and pick out unqualified light emitting diodes, thereby improving the detection efficiency of light emitting diodes.

[0006] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a light-emitting diode detection device, including a vibrating material tray, a transfer component, a joint control component, a detection component and a material discharge component, wherein a material discharge rack is arranged on the vibrating material tray; the transfer component includes a first box body, a driving mechanism, a first suction cylinder and a first negative pressure fan, wherein the first box body is located on one side of the vibrating material tray, the driving mechanism is arranged on the first box body, the driving mechanism is used to control the first suction cylinder, and transfer the light-emitting diode on the material discharge rack to the detection component; the first suction cylinder is arranged at one end of the driving mechanism, and a first pipe is arranged on the first suction cylinder; the first negative pressure fan is connected to the first suction cylinder through the first pipe; One end is connected to the driving mechanism; the detection component includes a second box body and a plug-in block, wherein the second box body is arranged on one side of the first box body, and the first electrode sheet and the second electrode sheet are arranged on the second box body; the plug-in block is rotatably arranged on the second box body, and the other end of the joint control component is engaged with a plurality of tooth blocks arranged on the plug-in block, and the joint control component is used to control the rotation of the plug-in block; two conductive blocks are arranged on the plug-in block, and the two conductive blocks are respectively arranged in two plug-in holes opened on the plug-in block, and the two conductive blocks are respectively in rotational contact with the first electrode sheet and the second electrode sheet; the unloading component is arranged on the second box body, and the unloading component is used to sort and unload the light-emitting diodes on the plug-in block.

[0007] According to a light emitting diode detection device of an embodiment of the present application, light emitting diodes can be continuously detected and unqualified light emitting diodes can be picked out, thereby improving the detection efficiency of light emitting diodes.

[0008] In addition, the light emitting diode detection device proposed in the present application may also have the following additional technical features:

[0009] In one embodiment of the present application, the driving mechanism includes a first electric telescopic rod, a first tooth plate, a gear, a first connecting rod, a second connecting rod and a sliding limit plate, wherein the first electric telescopic rod is arranged on the first box body; the first tooth plate is slidably connected to the support plate arranged in the first box body; the gear is rotatably arranged in the first box body, and the first tooth plate is meshingly connected to the gear; the first connecting rod is rotatably arranged on the first box body, one end of the first connecting rod is fixedly connected to the gear, the other end of the first connecting rod is rotatably connected to the second connecting rod, and the first suction cylinder is arranged at the bottom of the second connecting rod; the sliding limit plate is slidably connected to the first box body, and the second connecting rod is slidably connected in the sliding limit plate.

[0010] In one embodiment of the present application, the linkage control assembly includes a first linkage control rod, a second linkage control rod and a second tooth plate, wherein the first linkage control rod is fixedly connected to the first tooth plate; one end of the second linkage control rod is connected to the first linkage control rod, and the other end of the second linkage control rod is connected to the second tooth plate; the second tooth plate is slidably arranged on the first box body, and the second tooth plate is rotatably connected to the tooth block.

[0011] In one embodiment of the present application, a lead slot is provided on the conductive block.

[0012] In one embodiment of the present application, the unloading assembly includes a motor, a fixed rod, an unloading plate, a second electric telescopic rod, a second suction cylinder, a second negative pressure fan and two collection boxes, wherein the motor is arranged in the second box body; the fixed rod is rotatably arranged on the second box body, one end of the fixed rod is fixedly connected to the output shaft of the motor, and the other end of the fixed rod is fixedly connected to the unloading plate; the second electric telescopic rod is arranged on the side of the unloading plate away from the fixed rod, and the extension shaft of the second electric telescopic rod is fixedly connected to the second suction cylinder; a second pipe is arranged on the second suction cylinder, and the second suction cylinder is rotatably arranged above the plug-in block; the second negative pressure fan is connected to the second suction cylinder through the second pipe; and the two collection boxes are respectively arranged on both sides of the second box body.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 is a structural schematic diagram of a light emitting diode detection device according to an embodiment of the present application;

[0016] Figure 2 It is a structural schematic diagram of a transfer assembly according to an embodiment of the present application;

[0017] Figure 3 is a schematic cross-sectional structure diagram of a plug-in block according to an embodiment of the present application;

[0018] Figure 4 It is a structural schematic diagram of a blanking assembly according to one embodiment of the present application;

[0019] Figure 5 The figure is a schematic diagram of the installation structure of the driving mechanism and the joint control assembly according to one embodiment of the present application.

[0020] As shown in the figure: 1. Vibrating material plate; 10. Unloading rack; 2. Transfer assembly; 20. First box; 200. Support plate; 21. Driving mechanism; 210. First electric telescopic rod; 211. First tooth plate; 212. Gear; 213. First connecting rod; 214. Second connecting rod; 215. Sliding limit plate; 22. First suction cylinder; 220. First pipeline; 23. First negative pressure fan; 3. Joint control assembly; 30. First joint control rod; 31. Second joint control Rod; 32, second tooth plate; 4, detection assembly; 40, second box; 400, first electrode sheet; 401, second electrode sheet; 41, plug-in block; 410, tooth block; 411, conductive block; 412, lead slot; 413, plug-in hole; 5, unloading assembly; 50, motor; 51, fixing rod; 52, unloading plate; 53, second electric telescopic rod; 54, second suction cylinder; 540, second pipeline; 55, second negative pressure fan; 56, collection box. DETAILED DESCRIPTION

[0021] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0022] The light emitting diode detection device according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0023] like Figure 1-Figure 5 As shown, a light emitting diode detection device according to an embodiment of the present application may include a vibrating material plate 1, a transfer component 2, a joint control component 3, a detection component 4 and a material discharge component 5.

[0024] Wherein, a material unloading frame 10 is arranged on the vibrating material plate 1 .

[0025] It should be noted that the vibrating plate 1 described in this embodiment is a common vibrating feeding machine on the market, which can vibrate and flip multiple light-emitting diodes so that the pins of the multiple light-emitting diodes are facing downward and the heads are facing upward and fed to the feeding rack 10, thereby facilitating the transfer of the transfer component 2.

[0026] The transfer assembly 2 may include a first box body 20 , a driving mechanism 21 , a first suction cylinder 22 and a first negative pressure fan 23 .

[0027] The first box body 20 is located at one side of the vibrating plate 1 , and the driving mechanism 21 is arranged on the first box body 20 . The driving mechanism 21 is used to control the first suction cylinder 22 and transfer the light-emitting diode on the unloading rack 10 to the detection component 4 .

[0028] It can be understood that, through the setting of the driving mechanism 21, a plurality of light-emitting diodes can be moved one by one from the unloading rack 10 to the plug-in block 41 in sequence, so as to detect the light-emitting diodes.

[0029] The first suction cylinder 22 is disposed at one end of the driving mechanism 21 . A first pipe 220 is disposed on the first suction cylinder 22 . The first negative pressure fan 23 is connected to the first suction cylinder 22 through the first pipe 220 .

[0030] It is understandable that, through the work of the first negative pressure fan 23 , the first suction cylinder 22 can absorb the head of the light-emitting diode, thereby facilitating the transfer of the light-emitting diode from the unloading rack 10 to the plug-in block 41 .

[0031] One end of the linkage control component 3 is connected to the driving mechanism 21, and the detection component 4 may include a second box body 40 and a plug-in block 41, wherein the second box body 40 is arranged on one side of the first box body 20, and the first electrode sheet 400 and the second electrode sheet 401 are arranged on the second box body 40, and the plug-in block 41 is rotatably arranged on the second box body 40, and the other end of the linkage control component 3 is engaged with a plurality of tooth blocks 410 arranged on the plug-in block 41, and the linkage control component 3 is used to control the rotation of the plug-in block 41, and two conductive blocks 411 are arranged on the plug-in block 41, and the two conductive blocks 411 are respectively arranged in two plug-in holes 413 opened on the plug-in block 41, and the two conductive blocks 411 are respectively in rotational contact with the first electrode sheet 400 and the second electrode sheet 401.

[0032] It should be noted that the first electrode sheet 400 described in this embodiment is the positive electrode, and the second electrode sheet 401 is the negative electrode. The first electrode sheet 400 and the second electrode sheet 401 are connected to a power source (not shown in the figure) or a battery (not shown in the figure) through an electrical conductor (not shown in the figure), and are respectively connected to a signal sensor (not shown in the figure) and a controller (not shown in the figure), so that the controller can detect the light emission of the light-emitting diode. In addition, the above-mentioned detection is a common circuit connection method on the market and will not be elaborated here.

[0033] It can be understood that, by means of the two conductive blocks 411 provided on the plug-in block 41, the two pins of the light-emitting diode are brought into contact with the corresponding conductive blocks 411, thereby performing a power-on detection on the light-emitting diode and detecting whether the light-emitting diode can emit light normally. In addition, by means of the two conductive blocks 411 respectively rotating in contact with the first electrode sheet 400 and the second electrode sheet 401, when the first electrode sheet 400 and the second motor sheet 50 are in contact with the corresponding pins of the light-emitting diode, if the light-emitting diode does not light up (due to the unidirectional conduction of the light-emitting diode, the positive and negative poles will be reversed and the light-emitting diode will not light up, and the positive and negative poles need to be reversed at this time), the plug-in block 41 is rotated to make the first electrode sheet 400 and the second electrode sheet 401 respectively contact with the other pin, thereby completing the detection of the light-emitting diode.

[0034] The blanking assembly 5 is disposed on the second box body 40 , and is used for sorting and blanking the light emitting diodes on the plug-in block 41 .

[0035] It can be understood that, through the setting of the blanking component 5, the light-emitting diodes that pass the inspection can be blanked separately, and the light-emitting diodes that fail the inspection can be blanked separately, thereby improving the inspection efficiency of the light-emitting diodes.

[0036] Specifically, in the actual operation process, the relevant staff pours a plurality of light-emitting diodes into the vibrating material tray 1, and the controller controls the vibration of the vibrating material tray 1 to vibrate the light-emitting diodes at the bottom of the vibrating material tray 1 to the unloading rack 10. The transfer component 2 works, and the controller controls the driving mechanism 21 to rotate, and moves the first suction cylinder 22 to the unloading rack 10, and the first suction cylinder 22 is sleeved on the head of the light-emitting diode. At this time, the first negative pressure fan 23 works to generate negative pressure in the first suction cylinder 22, thereby adsorbing and fixing the light-emitting diode, and transferring the light-emitting diode to the plug hole 413 on the plug block 41, and the pins of the light-emitting diode are respectively abutted against the corresponding conductive blocks 411. After abutment, the first electrode sheet 400 and the second electrode sheet 401 are abutted against the corresponding conductive blocks 411, thereby transmitting current to the light-emitting diode , the light-emitting diode emits light, and the unloading component 5 unloads the light-emitting diode to the qualified area. The light-emitting diode does not emit light. During the process of adsorbing the next light-emitting diode on the unloading rack 10, the driving mechanism 21 drives the joint control component 3 to move, and the joint control component 3 drives the plug-in block 41 to rotate, so that the first electrode sheet 400 and the second electrode sheet 401 are respectively in contact with another conductive block 411, so that the positive and negative poles of the light-emitting diode can be reversed, thereby ensuring the detection quality of the light-emitting diode. If the light-emitting diode still does not emit light after the positive and negative poles of the light-emitting diode are reversed, the unloading component 5 unloads the light-emitting diode to the unqualified area and completes the detection of the light-emitting diode. When the next light-emitting diode is detected, the above operation is repeated to complete the detection of the light-emitting diode and improve the detection efficiency of the light-emitting diode.

[0037] In one embodiment of the present application, Figure 1 , Figure 2 and Figure 5 As shown, the driving mechanism 21 may include a first electric telescopic rod 210 , a first gear plate 211 , a gear 212 , a first connecting rod 213 , a second connecting rod 214 and a sliding limit plate 215 .

[0038] Among them, the first electric telescopic rod 210 is arranged on the first box body 20, the first tooth plate 211 is slidably connected to the support plate 200 arranged in the first box body 20, the gear 212 is rotatably arranged in the first box body 20, the first tooth plate 211 is meshed and connected with the gear 212, the first connecting rod 213 is rotatably arranged on the first box body 20, one end of the first connecting rod 213 is fixedly connected to the gear 212, the other end of the first connecting rod 213 is rotatably connected to the second connecting rod 214, and the first suction cylinder 22 is arranged at the bottom of the second connecting rod 214, the sliding limit plate 215 is slidably connected to the first box body 20, and the second connecting rod 214 is slidably connected in the sliding limit plate 215.

[0039] It can be understood that, by disposing the support plate 200 , the support plate 200 can be slidably supported, thereby ensuring the sliding control effect of the first tooth plate 211 on the gear 212 .

[0040] It should be noted that the sliding limit plate 215 described in this embodiment is connected to the first box body 20 for sliding movement left and right, and the second connecting rod 214 slides up and down in the sliding limit plate 215, so that when the first connecting rod 213 drives the second connecting rod 214 to rotate, the sliding limit plate 215 can slide along the movement direction of the second connecting rod 214, and the sliding limit plate 215 limits the movement of the second connecting rod 214, so that the first suction cylinder 22 on the second connecting rod 214 can absorb the light-emitting diode on the unloading rack 10 and can transport the light-emitting diode to the plug-in block 41, thereby ensuring the transfer effect of the light-emitting diode.

[0041] In one embodiment of the present application, Figure 2 , Figure 3 and Figure 5 As shown, the linkage control assembly 3 may include a first linkage control rod 30 , a second linkage control rod 31 and a second gear plate 32 .

[0042] Among them, the first interlocking rod 30 is fixedly connected to the first tooth plate 211, one end of the second interlocking rod 31 is connected to the first interlocking rod 30, and the other end of the second interlocking rod 31 is connected to the second tooth plate 32, the second tooth plate 32 is slidably arranged on the first box body 20, and the second tooth plate 32 is rotatably connected to the tooth block 410.

[0043] It should be noted that a sliding hole is provided on the first box body 20 described in this embodiment, and one end of the second interlocking rod 31 passes through the sliding hole and is connected to the second tooth plate 32, so as to realize the interlocking effect of the first tooth plate 211 on the second tooth plate 32 through the interlocking assembly 3.

[0044] In one embodiment of the present application, Figure 3 As shown, a lead slot 412 is formed on the conductive block 411 .

[0045] It should be noted that the lead slot 412 described in this embodiment is funnel-shaped, and the contact state between the pin of the light-emitting diode and the conductive block 411 is ensured by the arrangement of the lead slot 412 .

[0046] In one embodiment of the present application, Figure 1 and Figure 4 As shown, the unloading assembly 5 may include a motor 50 , a fixing rod 51 , a unloading plate 52 , a second electric telescopic rod 53 , a second suction cylinder 54 , a second negative pressure fan 55 and two collecting boxes 56 .

[0047] Among them, the motor 50 is arranged in the second box body 40, the fixed rod 51 is rotatably arranged on the second box body 40, one end of the fixed rod 51 is fixedly connected to the output shaft of the motor 50, and the other end of the fixed rod 51 is fixedly connected to the unloading plate 52, and the second electric telescopic rod 53 is arranged on the side of the unloading plate 52 away from the fixed rod 51, and the extension shaft of the second electric telescopic rod 53 is fixedly connected to the second suction cylinder 54, and the second suction cylinder 54 is provided with a second pipe 540, and the second suction cylinder 54 is rotatably arranged above the plug-in block 41, and the second negative pressure fan 55 is connected to the second suction cylinder 54 through the second pipe 540, and the collecting boxes 56 are respectively arranged on both sides of the second box body 40.

[0048] It should be noted that the motor 50 described in this embodiment has forward and reverse rotation functions, so as to facilitate the unloading component 5 to sort qualified or unqualified light-emitting diodes. In addition, the motor 50 is connected to the controller, and by operating the controller, the motor 50 is controlled to rotate to sort qualified or unqualified materials into the corresponding collection box 56.

[0049] Specifically, in the actual operation process, the relevant staff pours a plurality of light-emitting diodes into the vibrating material tray 1, and the controller controls the vibration of the vibrating material tray 1 to vibrate the light-emitting diodes at the bottom of the vibrating material tray 1 to the unloading rack 10. The transfer component 2 works, and the controller controls the first electric telescopic rod 210 to extend, and drives the first toothed plate 211 to slide on the support plate 200, thereby controlling the rotation of the gear 212, and the rotation of the gear 212 drives the first connecting rod 213 to rotate, and the first connecting rod 213 drives the second connecting rod 214 to rotate, so that the second connecting rod 214 drives the first suction cylinder 22 to move to the unloading rack 10 and sleeve the head of the light-emitting diode. At this time, the first negative pressure fan 23 works to generate negative pressure in the first suction cylinder 22, thereby adsorbing and fixing the light-emitting diode, and the controller controls the first electric telescopic rod 210 to contract, and transfers the light-emitting diode to the plug-in hole on the plug-in block 41. 413, and the pins of the light-emitting diode are respectively abutted with the corresponding conductive blocks 411. After abutment, since the first electrode sheet 400 and the second electrode sheet 401 are abutted with the corresponding conductive blocks 411, current is transmitted to the light-emitting diode, and the light-emitting diode emits light. The relevant staff operates the controller according to the light-emitting situation. The controller controls the motor 50 to rotate, and the motor 50 drives the fixed rod 51 to rotate, and drives the unloading plate 52 and the second suction cylinder 54 to rotate to the top of the plug-in block 41. The controller controls the extension of the second electric telescopic rod 53 and drives the second suction cylinder 54 to be socketed with the light-emitting diode. At this time, the second negative pressure fan 55 works to generate negative pressure in the second suction cylinder 54, thereby adsorbing the light-emitting diode. The controller controls the second electric telescopic rod 53 to retract, thereby taking out the light-emitting diode, and after the rotation of the motor 50, the light-emitting diode is unloaded into the qualified collection box 56.

[0050] When the light-emitting diode does not emit light, the first tooth plate 211 slides on the support plate 200, and in the process of adsorbing the next light-emitting diode on the unloading rack 10, it drives the first interlocking rod 30 and the second interlocking rod 31 to move, thereby driving the second tooth plate 32 to slide on the first box body 20. The sliding of the second tooth plate 32 drives the plug-in block 41 to rotate, so that the first electrode plate 400 and the second electrode plate 401 are respectively in contact with another conductive block 411, so that the positive and negative poles of the light-emitting diode can be reversed, thereby ensuring the detection quality of the light-emitting diode. The light-emitting diode is unloaded into the qualified collection box 56 through the unloading component 5. If the light-emitting diode still does not emit light after the positive and negative poles of the light-emitting diode are reversed, the unloading component 5 unloads the light-emitting diode to the unqualified area and completes the detection of the light-emitting diode. When the next light-emitting diode is detected, the above operation is repeated to complete the detection of the light-emitting diode and improve the detection efficiency of the light-emitting diode.

[0051] In summary, the light emitting diode detection device of the embodiment of the present application can continuously detect light emitting diodes and can pick out unqualified light emitting diodes, thereby improving the detection efficiency of light emitting diodes.

[0052] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A light emitting diode detection device, characterized in that: It includes a vibrating plate, a transfer component, a joint control component, a detection component and a material unloading component, among which: A material unloading rack is provided on the vibrating material tray; The transfer assembly includes a first box, a driving mechanism, a first suction cylinder and a first negative pressure fan, wherein: The first box is located at one side of the vibrating material tray, and the driving mechanism is arranged on the first box. The driving mechanism is used to control the first suction cylinder and transfer the light emitting diode on the unloading rack to the detection component; The first suction cylinder is arranged at one end of the driving mechanism, and a first pipe is arranged on the first suction cylinder; The first negative pressure fan is connected to the first suction cylinder through the first pipeline; One end of the joint control component is connected to the driving mechanism; The detection assembly includes a second box and a plug-in block, wherein: The second box is arranged on one side of the first box, and the first electrode sheet and the second electrode sheet are arranged on the second box; The plug-in block is rotatably arranged on the second box body, the other end of the joint control component is engaged with a plurality of tooth blocks arranged on the plug-in block, and the joint control component is used to control the rotation of the plug-in block; The plug-in block is provided with two conductive blocks, the two conductive blocks are respectively correspondingly arranged in two plug-in holes opened on the plug-in block, and the two conductive blocks are respectively in rotational contact with the first electrode sheet and the second electrode sheet; The blanking assembly is arranged on the second box body, and is used for sorting and blanking the light emitting diodes on the plug-in block.

2. The light emitting diode detection device according to claim 1, characterized in that: The driving mechanism includes a first electric telescopic rod, a first toothed plate, a gear, a first connecting rod, a second connecting rod and a sliding limit plate, wherein: The first electric telescopic rod is arranged on the first box body; The first tooth plate is slidably connected to a support plate disposed in the first box body; The gear is rotatably disposed in the first housing, and the first tooth plate is meshedly connected with the gear; The first connecting rod is rotatably arranged on the first box body, one end of the first connecting rod is fixedly connected to the gear, the other end of the first connecting rod is rotatably connected to the second connecting rod, and the first suction cylinder is arranged at the bottom of the second connecting rod; The sliding limit plate is slidably connected to the first box body, and the second connecting rod is slidably connected in the sliding limit plate.

3. The light emitting diode detection device according to claim 2, characterized in that: The linkage control assembly includes a first linkage control rod, a second linkage control rod and a second toothed plate, wherein: The first linkage rod is fixedly connected to the first tooth plate; One end of the second linkage rod is connected to the first linkage rod, and the other end of the second linkage rod is connected to the second gear plate; The second tooth plate is slidably arranged on the first box body, and the second tooth plate is rotatably connected to the tooth block.

4. The light emitting diode detection device according to claim 1, characterized in that: The conductive block is provided with a lead slot.

5. The light emitting diode detection device according to claim 1, characterized in that: The unloading assembly includes a motor, a fixing rod, an unloading plate, a second electric telescopic rod, a second suction cylinder, a second negative pressure fan and two collecting boxes, wherein: The motor is disposed in the second housing; The fixing rod is rotatably arranged on the second box body, one end of the fixing rod is fixedly connected to the output shaft of the motor, and the other end of the fixing rod is fixedly connected to the blanking plate; The second electric telescopic rod is arranged on a side of the blanking plate away from the fixed rod, and an extension shaft of the second electric telescopic rod is fixedly connected to the second suction cylinder; The second suction cylinder is provided with a second pipe, and the second suction cylinder is rotatably arranged above the plug-in block; The second negative pressure fan is connected to the second suction cylinder through the second pipeline; The two material collecting boxes are respectively and correspondingly arranged on both sides of the second box body.

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