CN209045491U - A kind of LED electrode automatic detection platform - Google Patents

Abstract

A kind of LED electrode automatic detection platform, including clamping device, synchronous belt attitude coutrol mechanism, linear guide, mobile device, clamping positioning table, pickup platform, first base and second base；First base and second base are arranged side by side, pickup platform is arranged in one end of second base, linear guide is arranged in the other end, synchronous belt attitude coutrol mechanism is arranged in linear guide, synchronous belt attitude coutrol mechanism can move in linear guide, the top of synchronous belt attitude coutrol mechanism is arranged in clamping device, and clamping device can clamp the article on pickup platform；Mobile device is arranged in first base, clamps positioning table setting on the mobile device, and mobile device is able to drive clamping positioning table and moves in the horizontal plane；The utility model substitutes manual operation, provides detection efficiency.

Description

An automatic detection platform for LED electrodes

technical field

The utility model belongs to the technical field of LED detection, in particular to an LED electrode automatic detection platform.

Background technique

In recent years, with the continuous development of China's manufacturing industry and the gradual increase in manufacturing costs, the state has formulated numerous policies to guide manufacturing enterprises to improve the automation level of production, in order to achieve the purpose of replacing labor with machines. At present, most LED manufacturers in China are mid-stream and downstream packaging companies with low profits. In actual production, many LED inspections are done manually. Faced with the current increase in labor costs and technical requirements, it is obvious that they are done manually. The efficiency of LED detection is extremely poor, and it is not suitable for the current development trend. Therefore, the use of automatic detection equipment is extremely beneficial to improve detection efficiency and detection reliability. The defect detection for LED mainly includes LED chip detection, online inspection during packaging, and final product inspection. The chip inspection is mainly completed by the chip manufacturer before leaving the factory, which belongs to the upstream business of the LED production chain. It is relatively mature and expensive, and in China, it mainly conducts LED packaging defect detection and LED finished product testing. For the detection of finished products, most of the current detection methods focus on the sampling inspection of LEDs in small batches. The method used is measured by a voltmeter, and the advantages and disadvantages of LED finished products are determined by comparing the parameters such as forward and reverse resistance and on-current. One is to simply power on the LED, and observe the light emission through related equipment to diagnose LED defects and even damage. These methods belong to contact detection, and there are new non-contact detection methods. Chongqing University proposed a method to stimulate the LED by lighting. The non-contact detection method of LED chips is suitable for mass production of chips. The light emission caused by the photovoltaic effect generated by the light on the p-n junction of the LED is detected to analyze the corresponding LED performance parameters. It is proposed to irradiate the LED chip with constant intensity light, generate a photoelectromotive force on the p-n junction as the forward bias voltage of the p-n junction, superimpose an alternating magnetic field, control and drive the carrier diffusion current, and increase the peak density of the carrier diffusion current. , in order to improve the peak intensity of the electroluminescence of the LED chip, and produce alternating luminescence. In this detection method, the light source does not need to scan the p-n junctions one by one, but simultaneously illuminates the entire semiconductor wafer or selected areas, and uses an image sensor to detect the light emission of multiple p-n junctions. It is proposed to detect the transient luminescence caused by the discharge of the photoelectromotive force at the moment when the illumination ends.

LEDs are widely used in important fields such as electronic display screens, electronic indicator lights, and various lighting because of their long service life and low energy consumption. Its stability, reliability and high light yield are the advantages of LEDs to replace existing traditional light sources. The LED packaging process is an important factor affecting the function and function of the LED. However, due to the problems in the packaging process itself, there will be many defects such as chip electrode oxidation and repeated welding in the LED packaging process. The failure rate of the system accounts for more than 1/4 of the entire failure rate. In my country, due to the limitation of output and technical strength, many manufacturers use simple manual welding methods, resulting in non-standard welding systems, so problems are easily caused in the packaging process, and most of the current domestic inspections are It is still in the stage of manual inspection, which greatly hinders the overall quality improvement of my country's LED industry, and it is difficult to improve the efficiency.

With the advancement of society and the improvement of technology, the market's requirements for product quality have gradually increased, which has prompted manufacturers to pay more attention to quality testing equipment. At present, for LED electrode testing, most small manufacturers use manual observation through the naked eye. , so there are the characteristics of low detection efficiency and poor reliability, which are harmful to the improvement of product quality. Therefore, these small LED lamp manufacturers urgently need an automatic device that can realize faster detection of LED electrodes, and at the same time To ensure the low implementation cost of the whole system, simple structure and easy maintenance, this practical need has led to relevant research. Considering the special situation of these small LED manufacturers, it is necessary to design a design that will help improve some small manufacturers' understanding of LEDs. An automated level solution for electrode detection.

Utility model content

The purpose of this utility model is to provide an LED electrode automatic detection platform to solve the above problems.

To achieve the above object, the utility model adopts the following technical solutions:

An automatic detection platform for LED electrodes, comprising a clamping mechanism, a synchronous belt attitude control mechanism, a linear guide rail, a moving device, a clamping positioning table, a pick-up table, a first base and a second base; the first base and the second base are side by side Setting, one end of the second base is provided with a pick-up table, the other end is provided with a linear guide rail, the synchronous belt attitude control mechanism is set on the linear guide rail, the synchronous belt attitude control mechanism can move on the linear guide rail, and the clamping mechanism is set on the synchronous belt attitude control mechanism. The top of the mechanism, the clamping mechanism can clamp the items on the pick-up table; the moving device is arranged on the first base, the clamping and positioning table is arranged on the moving device, and the moving device can drive the clamping and positioning table to move in the horizontal plane;

The synchronous belt attitude control mechanism includes the main arm shaft seat, the main arm plate, the second stepping motor, the incomplete gear of the frame, the first spur gear, the second synchronous belt, the motor mounting base plate, the synchronous wheel mounting seat, the second spur gear and the claw arm rotating shaft; the linear guide rail is two parallel guide rails, the guide rails are both provided with sliders, the two main arm plates are respectively hinged on the two sliders through shaft pins, and the main arm is fixedly connected between the two sliders The shaft seat, the two ends of the main arm shaft seat are fixedly provided with incomplete gears of the frame; the motor installation substrate is fixedly arranged between the two main arm plates, the second stepping motor is fixedly installed on the lower surface of the motor installation substrate, and the third stepper motor is fixed on the lower surface of the motor installation substrate. The second stepper motor is a double output shaft motor, and the output shafts at both ends are provided with a first spur gear, which meshes with the frame incompletely; the two output shafts of the second stepper motor are also provided with synchronizing gears. The tops of the two main arm plates are provided with synchronous wheel mounting seats, and the synchronous wheel mounting seats are provided with synchronous wheels, and the two synchronous wheels located on the same side are connected by a second synchronous belt; The synchronizing wheel is coaxially provided with a transmission gear, a claw arm rotating shaft is arranged between the tops of the two main arm plates, and a second spur gear is fixed at both ends of the claw arm rotating shaft, and the second spur gear meshes with the transmission gear.

Further, the linear guide rail includes a first step motor, a first timing belt, a first guide rail and a slider; the two first guide rails are fixedly arranged on the second base in parallel, and the first step motor is fixedly arranged on the two first guide rails. On the second base between the guide rails, the output end of the first stepping motor is connected with a synchronous wheel through a coupling, the edge of the second base is provided with a synchronous wheel fixing groove, and the synchronous wheel fixing groove is provided with a synchronous wheel, and the second base is provided with a synchronous wheel. The two synchronizing wheels on the base are connected by a first synchronizing belt; the first synchronizing belt and the shaft seat of the main arm are fixedly connected by a connecting block.

Further, the clamping mechanism includes a steering gear, a clamping claw, a claw arm frame, a claw arm coupling seat and a claw arm incomplete gear; the claw arm coupling seat is fixedly arranged on the claw arm rotating shaft, and the claw arm coupling seat is fixedly connected with two pieces. The claw arm frame, two claw arm frames are arranged in parallel, two claw arm incomplete gears are arranged between the two claw arm frames parallel to the claw arm frame, and the outer surface of the claw arm frame is provided with a steering gear. The output shaft extends between the two claw arm frames, and a spur gear is installed on the output shaft of the steering gear. The spur gear meshes with one of the claw arm incomplete gears; the two claw arm incomplete gears are hingedly connected with clamping jaws.

Further, the gripper includes a first link, a second link, a support rod and a chuck; the first link is hinged on the incomplete gear of the claw arm, the second link is hinged with the first link, and one end of the support rod is connected to the The claw arm frame is hinged, and the other end is hinged with the middle of the second connecting rod, and the end of the second connecting rod is provided with a collet.

Further, the mobile device includes a third stepping motor, a synchronous belt mechanism, a fixed block, a guide rail slider and a second guide rail; the first base is a rectangular plate, and four sides of the first base are fixedly provided with a second base along the edges. Guide rails, each second guide rail is provided with guide rail sliders, the guide rail sliders on the two opposite second guide rails are fixedly connected by connecting shafts, and the two connecting shafts are not on the same horizontal plane and do not contact; The first base on the inner side of the guide rail is provided with a synchronous belt mechanism parallel to the second guide rail, each synchronous belt mechanism is fixedly provided with a fixed connection block, and the fixed connection block is fixedly connected with the connecting shaft; the third stepping motor is connected to the synchronous belt mechanism .

Further, the synchronous belt mechanism includes two synchronous wheel fixing seats, a synchronous belt and two synchronous wheels, each synchronous wheel fixing seat is provided with a synchronous wheel, and the two synchronous wheels are connected by a synchronous belt; The motor is a double output shaft motor, a third stepper motor is arranged between every two parallel synchronous belt mechanisms, and the two output ends of the third stepper motor are respectively fixedly connected with a synchronous motor located at both ends of the third stepper motor. wheel.

Further, the clamping positioning table includes a clamping block, a spring push rod, a thrust rod, a rotary rod, a limit block, a driving rod, a bearing seat, a lead screw slider, a lead screw, a DC motor and a base plate; the base plate is a rectangular plate, Several limit blocks are evenly arranged on the two adjacent right-angle sides of the bottom plate, and clamping blocks are arranged on the other two right-angle sides. The clamping blocks and the limit blocks form a rectangular clamping space; Two spring push rods are fixedly arranged on the surface of the clamping space, and both spring push rods are connected with a push rod. The bottom plate is hinged, and the two thrust rods are connected by a connecting rod; the connecting rod is provided with a rotary rod, the rotary rod is hingedly connected with a driving rod, and the end of the driving rod is fixedly connected to the lead screw slider; the DC motor and the bearing seat are both It is fixedly arranged on the bottom plate, the output end of the DC motor is connected with a lead screw, and the lead screw slider is arranged on the lead screw; an optical microscope is arranged above the clamping and positioning stage.

Further, four connecting pieces are fixedly connected to the bottom of the base plate, and the four connecting pieces are symmetrically arranged in pairs, and the connecting line between the two symmetrical connecting pieces is perpendicular to the connecting line between the other two connecting pieces; connecting A through hole is arranged on the piece, and the connecting shafts on the two moving devices are respectively arranged through two mutually symmetrical connecting pieces; the connecting pieces can slide along the connecting shafts.

Compared with the prior art, the utility model has the following technical effects:

The utility model relies on the worker to place the LED lamp on the carrier plate, and uses the cooperation of the linear guide rail and the synchronous belt attitude control mechanism to clamp the carrier plate and move it for a certain distance, and then place it on the detection carrier, instead of manual operation, and improve work efficiency ;

The utility model utilizes the stepping motor and the belt drive, which can precisely control the movement of the carrier in the X-Y plane, and ensures that each LED lamp can be detected;

The utility model adopts the motor to drive the telescopic movement of the connecting rod part, so that each time the carrier plate can be placed in the same position after moving, and the clamping can be ensured;

The utility model uses the mechanical arm to clamp the carrier plate, moves and places it on the carrier platform, uses the clamping and positioning mechanism to fix the carrier plate, and finally moves the carrier platform to complete the entire detection;

The utility model uses the steering gear to drive the incomplete gear, and then drives the clamping mechanism frame and the clamping support rod to move, so as to ensure that the forearm clamps the carrier plate;

The utility model has the advantages of reasonable scheme, simple structure, increased production efficiency and full play of the advantages of detection automation.

Description of drawings

Figure 1 is a schematic diagram of the overall scheme of the present invention.

FIG. 2 is a schematic diagram of the pickup device of the present invention.

3 is a schematic diagram of the mobile device of the present invention.

4 is a schematic diagram of the fixture positioning table of the present invention.

FIG. 5 is a structural diagram of the connector of the present invention.

FIG. 6 is a schematic diagram of the detection scheme of the present invention.

Among them: 1- pick-up table, 2- carrier plate, 3- coupling, 4- first step motor, 5- first synchronous belt, 6- first guide rail, 7- main arm shaft seat, 8- main Arm plate, 9-Second stepper motor, 10-Frame incomplete gear, 11-First spur gear, 12-Second timing belt, 13-Motor mounting base plate, 14-Servo gear, 15-Gripper, 16 - claw arm frame, 17- synchronous wheel mounting seat, 18- second spur gear, 19- claw arm coupling seat, 20- claw arm incomplete gear, 21- claw arm rotating shaft, 22- third stepper motor, 23- The third synchronous belt, 24-clamping block, 25-spring push rod, 26-thrust rod, 27-slewing rod, 28-fixed block, 29-rail slider, 30-second rail, 31-limit block , 32-drive rod, 33-bearing seat, 34-screw slider, 35-screw, 36-DC motor, 37-first base, 38-second base.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1 to 3, this embodiment provides an automatic detection device and method for LED electrodes. After placing the LED light in the pick-up area, the pick-up device and the moving stage are used to automatically detect each LED electrode under the microscope. Operation process of LED lights.

The utility model relates to an automatic detection device for LED electrodes, which comprises a pick-up area, a pick-up device and a mobile carrier;

The pick-up area includes a pick-up table 1 and a carrier tray 2. The carrier tray 2 is used to place a large number of LED lights. The bottom is provided with a raised substrate to facilitate the pick-up of the claw arm. The pick-up table 1 has a height limit ruler made of angular profiles. It is used to determine the number of trays 2 placed on the pick-up table, while preventing the movement of the carrier tray 2, which plays a limiting role. The position of the pick-up table 1 is determined by the posture of the main arm and the claw arm of the pick-up device. At the base 37 It can be placed in the upper designated area, and then the worker will place the tray 2 on it.

The pickup device is divided into a clamping mechanism, a synchronous belt attitude control mechanism and a linear guide.

Linear guide rail: 42 stepper motor 4 is installed on the base 37 by bolt connection, output torque and number of revolutions, the output shaft is connected to the coupling 3 to transmit power to the synchronous pulley, and the synchronous pulley is installed from its base through bolted connection On the base 37, the rotation of the synchronous pulley makes the first synchronous belt 5 start to move clockwise or counterclockwise, and there is a movement connecting block on the lower side of the upper belt of the first synchronous belt 5, so that when the first synchronous belt 5 moves, it drives the The main arm shaft seat 7 starts to move in a straight line, the main arm shaft seat 7 is installed on the slider on the first guide rail 6, the weight of the entire mechanical arm is borne by the slider on the first guide rail 6, and the first guide rail 6 is installed on the base 37;

Timing belt attitude control mechanism: main arm shaft seat 7, main arm plate 8, first 57 stepper motor 9, rack incomplete gear 10, first spur gear 11, second timing belt 12, motor mounting base plate 13, synchronization The wheel mounting seat 17, the second spur gear 18, the claw arm rotating shaft 21, the mechanism is symmetrical with the vertical center plane, the first 57 stepper motor 9 is mounted on the lower part of the motor mounting base plate 13 by screw connection, and the motor mounting base plate 13 Installed on the synchronous wheel mounting seat, the first 57 stepper motor 9 is a dual-shaft output motor, and the two output shafts are connected to the first spur gear 11 through a coupling, and at the same time, the second synchronous belt 12 is installed on the shaft. The synchronous wheel mounting seat is installed on the main arm plate 8; the first spur gear 11 meshes with the incomplete gear 10 of the frame, and the shaft of the incomplete gear 10 of the frame is installed on the main arm shaft seat 7 and the main arm plate 8 , passing through the slider of the first guide rail 6, the guide slider has a bearing and a bearing cover, which are fixed by the bearing seat on the main arm plate 8; , a gear paired with the second spur gear 18 is installed on the outside of the pulley shaft, the second spur gear 18 is mounted on the claw arm rotating shaft 21, and the two ends of the claw arm rotating shaft 21 are fixed on the main arm plate 8 through the bearing seat by paired bearings; The design of the attitude control structure of the entire synchronous belt is completed, so that the main arm plate 8 is in the vertical plane, and the swing arm movement is performed by the rotation of the incomplete gear 10 of the frame. Attitude synchronization;

Clamping mechanism: steering gear 14, clamping jaw 15, jaw arm frame 16, jaw arm coupling seat 19, jaw arm incomplete gear 20, steering gear 14 output angular displacement, the output shaft is connected to a spur gear, the spur gear and the jaw arm are not connected. The other claw arm paired with the complete gear 20 is engaged with the incomplete gear, so that the steering gear 14 can drive the spur gear to rotate, thereby making the two incomplete gears rotate. On the complete gear 20, the steering gear 14 and the 4 connecting rods in the middle of the clamping jaw 15 are installed on the claw arm frame 16 through screw connection and bolt connection, and the spur gear and the claw arm incomplete gear 20 and its mating gear pass through the corresponding gear shafts It is then installed on the claw arm frame 16. The claw arm frame 16 is a pair of front and rear plates, which are connected together by screws through four round rods with threaded through holes sandwiched in between; the claw arm frame 16 is connected by bolts On the claw arm coupling seat 19, the claw arm coupling seat 19 is fixed on the claw arm rotating shaft 21 by a flat key; in this way, under the output angular displacement of the steering gear 14, the spur gear is driven to rotate, thereby making the claw arm incomplete gear 20 rotate , pull the jaws 15 to extend and retract to achieve clamping.

The moving stage includes a moving device and a clamping and positioning stage.

Mobile device: the second 57 stepper motor 22, the third synchronous belt 23, the fixed block 28, the guide rail slider 29, the second guide rail 30, the base 37, and two pairs of guide rails that are the same as the second guide rail 30 are installed on the base 27 The guide rails are equipped with guide rail sliders 29, each pair of guide rails drives a shaft, and the two shafts form an X-Y plane; the second 57 stepper motor 22 of the dual-axis model is installed on the base 37, and the output shaft is synchronized with the third The pulley shaft of belt 23 is connected through a coupling to transmit torque and revolutions. The synchronous pulley is installed on its base bearing through the pulley shaft, and the base is installed on the base 37 through bolt connection; the third synchronous belt 23 The fixed block 28 connected with screws, representing the two axes of the X-Y plane, is installed on the fixed block 28 and the guide slider 29, and is fixed by the corresponding end cover; the weight of the entire clamping and positioning table is supported by the two bearings, and then It is transmitted to the guide rail slider 29, the guide rail is stressed, and the third synchronous belt only 23 plays a traction role;

Clamping positioning table: clamping block 24, spring push rod 25, thrust rod 26, rotary rod 27, limit block 31, drive rod 32, bearing seat 33, lead screw slider 34, trapezoidal lead screw 35, DC motor 36 , the bottom of the structure is a clamping positioning plate, and the four limit blocks 31 on both sides are fixed on the plate by bolts; the front end of the spring push rod 25 is in the hole of the clamping block 24, and is connected by screws. The spring push rod 25 and the clamping block 24 are fixed together, and the spring push rod 25 plays the role of storing excess thrust to prevent damage to the mechanism; The two thrust rods 26 are connected to the rotary rod 27 through two pull rods, the rotary rod 27 is connected to the driving rod 32, and the other end of the driving rod 32 is connected to the screw slider 34 , the lead screw slider 34 is sleeved on the trapezoidal lead screw 35, one end of the trapezoidal lead screw 35 is fixed by the bearing seat 33, and the other end is connected with the output shaft of the DC motor 36 through the coupling, and the DC motor 36 is fixed by its base with bolts. Clamping and positioning table; there are 4 pairs of screw holes in the middle, each corresponding two pairs of screw holes are installed with linear bearing supports, and two linear bearing supports are set on each shaft to jointly bear the weight of the clamping and positioning table and drive the table Move and make the bending moment on the bearing as uniform as possible.

The working process of the present utility model is as follows:

When the automatic detection device for LED electrodes is installed for detection, the workers first place a large number of LED lights on the carrier tray 2 as required, and then place a certain number of carrier trays 2 on the pick-up table 1, and the pick-up table 1 The position is determined by the pickup track of the pickup device.

The process of picking up the carrier plate 2 and placing it on the clamping and positioning table is as follows. The 42 stepper motor 4 transmits power to the synchronous pulley through the coupling 3 to make the first synchronous belt 5 move, and then drives the main arm shaft. The seat 7 starts to perform linear motion, and the linear motion is carried out on the first guide rail 6. When the main arm shaft seat 7 moves to a certain position, the linear motion stops. The double-axis first 57 stepper motor 9 starts to output torque and revolutions, so that the first spur gear 11 rotates, which drives the incomplete gear 10 to rotate, so that the main arm plate 8 and the horizontal normal in the vertical plane form a certain constant angle, that is, the entire main arm begins to be inclined forward. Since the first spur gear 11 and the pulley of the second synchronous belt 12 are coaxial, that is, the second synchronous belt 12 and the first spur gear 11 rotate at the same time, thereby driving the second spur gear. 18 rotates, so that the claw arm rotating shaft 21 rotates, at this time, the tilting movement of the main arm and the clamping mechanism are realized at the same time, that is, the posture is synchronized. When the main arm plate 8 rotates to a certain angle, the clamping mechanism also has a certain angle with the main arm plate 8, and when it reaches the position of the carrier plate, the steering gear 14 starts to output, which drives the spur gear to rotate, thereby causing the two incomplete gears to rotate. When the incomplete gear 20 of the claw arm rotates counterclockwise, the clamping claws 15 converge toward the center, and the operation of clamping the carrier plate 2 is performed, and the clamping is completed. The output of the steering gear 14 is maintained to realize the clamping action, and the first 57 stepper motor 9 of the two axes starts to output in reverse again, so that the main arm in the synchronous belt attitude control mechanism is parallel to the horizontal normal, and the action is maintained, and the 42 stepper motor 4 outputs Move the entire robotic arm to a certain position, repeat the rotation movement of the main arm and the clamping movement of the claw arm, and place the carrier plate 2 on the clamping and positioning table.

When the carrier plate 2 is positioned on the clamping and positioning table, the DC motor 36 outputs the output to drive the lead screw 35 to rotate, so that the lead screw slider 34 rotates on the trapezoidal lead screw 35 to realize forward and backward movement. The lead screw slider 34 slides forward and pushes the drive rod 32, so that the rotary rod 27 moves outwards near the motor side, and the other side moves inwardly, so that the thrust rod 26 opens and pushes the clamping block 24 to move forward. Under the action of the mechanisms on both sides, the carrier plate 2 moves to the limit blocks 31. Since the carrier plate 2 can be pressed against the four limit blocks 31 each time, the clamping and the clamping of the carrier plate 2 on the clamping and positioning table are realized. Positioning for easy detection. After the clamping and positioning table completes the action, the two dual-axis 57 stepper motors on the mobile device are output, so that the corresponding synchronous belt moves, which drives the fixed block on each synchronous belt to move, and then drives the two shafts to move in the horizontal plane. , and the two axes are respectively the X and Y axes in the quadrant, so that each LED lamp on the carrier plate 2 can be placed under the optical microscope to complete the detection work. Contrary to the pick-up process, the unloading work can be realized.

Claims (8)

1. An automatic detection platform for LED electrodes, characterized in that it comprises a clamping mechanism, a synchronous belt attitude control mechanism, a linear guide rail, a moving device, a clamping positioning table, a pick-up table (1), a first base (37) and The second base (38); the first base (37) and the second base (38) are arranged side by side, one end of the second base (38) is provided with a pick-up table (1), the other end is provided with a linear guide rail, and a synchronous belt attitude control mechanism Set on the linear guide, the synchronous belt attitude control mechanism can move on the linear guide, the clamping mechanism is set on the top of the synchronous belt attitude control mechanism, and the clamping mechanism can clamp the items on the pick-up table; the moving device is set on the first On the base (37), the clamping and positioning table is arranged on the moving device, and the moving device can drive the clamping and positioning table to move in the horizontal plane; The synchronous belt attitude control mechanism includes a main arm shaft seat (7), a main arm plate (8), a second stepping motor (9), a frame incomplete gear (10), a first spur gear (11), a second synchronizing The belt (12), the motor mounting base plate (13), the synchronizing wheel mounting seat (17), the second spur gear (18) and the claw arm rotating shaft (21); The two main arm plates (8) are hinged on the two sliders respectively through shaft pins, and a main arm shaft seat (7) is fixedly connected between the two sliders, and both ends of the main arm shaft seat (7) are A rack incomplete gear (10) is fixedly arranged; a motor installation base plate (13) is fixedly arranged between the two main arm plates (8), and the second stepper motor (9) is fixedly installed on the bottom of the motor installation base plate (13). On the lower surface, the second stepper motor (9) is a double output shaft motor, the output shafts at both ends are provided with a first spur gear (11), and the first spur gear (11) meshes with the incomplete gear (10) of the frame ; The two output shafts of the second stepping motor (9) are also provided with synchronizing wheels, the tops of the two main arm plates (8) are provided with synchronizing wheel mounting seats (17), and the synchronizing wheel mounting seats (17) are provided with Both are provided with synchronous wheels, and the two synchronous wheels on the same side are connected by a second synchronous belt (12). A claw arm rotating shaft (21) is arranged between the tops of (8), and second spur gears (18) are fixedly arranged at both ends of the claw arm rotating shaft (21), and the second spur gears (18) mesh with the transmission gear. 2. The LED electrode automatic detection platform according to claim 1, wherein the linear guide rail comprises a first step motor (4), a first timing belt (5), a first guide rail (6) and a slider Two first guide rails (6) are fixedly arranged on the second base (38) in parallel, and the first step motor (4) is fixedly arranged on the second base (38) between the two first guide rails (6) , the output end of the first stepping motor (4) is connected with a synchronizing wheel through a coupling, the edge of the second base (38) is provided with a synchronizing wheel fixing groove, and the synchronizing wheel fixing groove is provided with a synchronizing wheel, and the second base ( 38) are connected between the two synchronizing wheels through a first synchronizing belt (5); the first synchronizing belt (5) and the main arm shaft seat (7) are fixedly connected through a connecting block. 3. The LED electrode automatic detection platform according to claim 1, wherein the clamping mechanism comprises a steering gear (14), a clamping jaw (15), a claw arm frame (16), and a claw arm coupling seat (19). ) and the claw arm incomplete gear (20); the claw arm coupling seat (19) is fixedly arranged on the claw arm rotating shaft (21), and two claw arm brackets (16) are fixedly connected to the claw arm coupling seat (19). The claw arm brackets (16) are arranged in parallel, and two claw arm incomplete gears (20) meshing with each other are arranged between the two claw arm brackets (16) parallel to the claw arm brackets (16), and the claw arm brackets (16) A steering gear (14) is arranged on the outer surface, the output shaft of the steering gear (14) extends between the two claw arm frames (16), and a spur gear is installed on the output shaft of the steering gear (14). The incomplete gears (20) of the claw arms are engaged; the two incomplete gears (20) of the claw arms are hingedly connected with clamping claws (15). 4. The LED electrode automatic detection platform according to claim 3, wherein the clamping jaw (15) comprises a first connecting rod, a second connecting rod, a support rod and a chuck; the first connecting rod is hinged on the claw The arm incomplete gear (20), the second link is hinged with the first link, one end of the support rod is hinged with the claw arm frame (16), the other end is hinged with the middle of the second link, and the end of the second link is hinged A collet is provided. 5. The LED electrode automatic detection platform according to claim 1, wherein the moving device comprises a third stepper motor (22), a timing belt mechanism, a fixed block (28), and a guide rail slider (29) and a second guide rail (30); the first base (37) is a rectangular plate, and the four sides of the first base (37) are fixedly provided with second guide rails (30) along the edges, and each second guide rail (30) is provided with a second guide rail (30). Both are provided with guide rail sliders (29), and the guide rail sliders (29) on the two opposite second guide rails (30) are fixedly connected by connecting shafts, and the two connecting shafts are not on the same horizontal plane and do not contact; The first base (37) on the inner side of the two guide rails (30) is provided with a synchronous belt mechanism parallel to the second guide rail, each synchronous belt mechanism is fixedly provided with a fixed connection block (28), and the fixed connection block (28) is connected to the The shaft is fixedly connected; the third stepper motor (22) is connected to the synchronous belt mechanism. 6. The LED electrode automatic detection platform according to claim 5, wherein the synchronous belt mechanism comprises two synchronous wheel fixing seats, a synchronous belt and two synchronous wheels, and each synchronous wheel fixing seat is provided with a a synchronous wheel, the two synchronous wheels are connected by a synchronous belt; the third stepper motor (22) is a dual-output shaft motor, and a third stepper motor (22) is arranged between every two parallel synchronous belt mechanisms , the two output ends of the third stepping motor (22) are respectively fixedly connected with synchronizing wheels located at both ends of the third stepping motor (22). 7. The LED electrode automatic detection platform according to claim 5, characterized in that the clamping and positioning platform comprises a clamping block (24), a spring push rod (25), a push rod (26), a rotary rod (27) ), limit block (31), drive rod (32), bearing seat (33), lead screw slider (34), lead screw (35), DC motor (36) and bottom plate; the bottom plate is a rectangular plate, along the bottom plate A plurality of limit blocks (31) are evenly arranged on two adjacent right-angle sides, and clamping blocks (24) are arranged on the other two right-angle sides, and the clamping blocks (24) and the limit blocks (31) form a rectangle. two spring push rods (25) are fixedly arranged on the surface of the clamping block (24) facing away from the clamping space, and the two spring push rods (25) are connected with a push rod (26), (26) is hinged by two connecting rods, one end of the thrust rod (26) is hinged with the spring push rod (25), and the other end is hinged with the bottom plate, and the two thrust rods (26) are connected by a connecting rod; the connecting rod A rotary rod (27) is provided on the rotary rod (27), a driving rod (32) is hingedly connected to the rotary rod (27), and the end of the driving rod (32) is fixedly connected to the lead screw slider (34); the DC motor (36) and the bearing The seats (33) are fixedly arranged on the bottom plate, the output end of the DC motor (36) is connected with a lead screw (35), and the lead screw slider (34) is arranged on the lead screw (35); microscope. 8 . The automatic detection platform for LED electrodes according to claim 5 , wherein the bottom of the bottom plate is fixedly connected with four connecting pieces, the four connecting pieces are symmetrically arranged in pairs, and the two symmetrical connecting pieces The connecting line between the two connecting pieces is perpendicular to the connecting line between the other two connecting pieces; the connecting piece is provided with a through hole, and the connecting shafts on the two moving devices are respectively arranged through two mutually symmetrical connecting pieces; The shaft slides.