A kind of air conditioner frequency converter circuit board before burning treatment of sub-plate transport device

Abstract

The application discloses a kind of sub-plate transport devices of air conditioner frequency converter circuit board before burning processing, it is related to circuit board burning feed transport field, including: equipment platform and fixed in the end surface of equipment platform transfer frame plate, the inside of transfer frame plate is equipped with two rectangular grooves that are symmetrically distributed, the upper end edge of each rectangular groove is fixedly provided with two guide rails, the upper of two guide rails located in the same side is provided with first tray, and the bottom of first tray is fixed with the sliding block that is slidably assembled with guide rail, the synchronous tooth belt can make the synchronous reverse movement of two load plate units by the action of transmission unit, the alternate feed of two load plate units to manipulator, and the horizontal and vertical sub-plate cutting treatment of circuit board board is carried out by the action of two sub-plate cutting machines during the movement of load plate unit with circuit board board, so that circuit board single board can be directly transported to the lower of manipulator, without manually placing treatment to circuit board single board.

Description

Technical Field

[0001] This invention relates to the field of circuit board burning material supply and transportation, specifically a board separation and transportation device for pre-processing of air conditioner inverter circuit boards before burning. Background Technology

[0002] During the mass production of air conditioner inverter circuit boards, they need to be transferred to a programming device for programming. The main transportation method is to transfer the circuit boards via a conveyor line. A robotic arm picks up individual circuit boards and places them on the conveyor line for transfer. However, air conditioner inverter circuit boards are usually manufactured as a single board (connected boards). When the circuit board is transferred towards the robotic arm by the feeding and transporting device, the single board needs to be cut into boards by a board splitting machine beforehand. Then, the workers neatly place the individual boards on the loading platform. The feeding and transporting device will then move several individual boards through the loading platform to the area below the robotic arm, allowing the robotic arm to place the circuit boards one by one on the conveyor line. However, this transportation method is too complicated. It is also troublesome to manually place the individual boards neatly on the loading platform. If the placement is crooked, the robotic arm will not be able to pick up the individual board effectively. Summary of the Invention

[0003] The purpose of this invention is to provide a board separation and transportation device for preprocessing the circuit board of an air conditioner inverter before programming, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a board separation and transportation device for preprocessing of air conditioner inverter circuit board before programming, comprising: an equipment platform and a transfer frame plate fixed on the upper surface of the equipment platform, wherein the transfer frame plate has two symmetrically distributed rectangular slots inside, and two symmetrically distributed guide rails are fixedly provided on the upper edge of each rectangular slot, a first tray is provided above the two guide rails on the same side, and a slider that is slidably assembled with the guide rails is fixed at the bottom of the first tray, and two board separation cutting machines are fixedly suspended above each rectangular slot, and the cutting blades of the two board separation cutting machines are used to perform transverse and longitudinal cutting processing on the connecting board;

[0005] It also includes: a carrier plate unit for carrying the connecting plate and transferring it toward the robot arm, the carrier plate unit being disposed above the first tray;

[0006] A transmission unit is used to drive two carrier plate units to move alternately with connecting plates for material feeding. The transmission unit is disposed between the transfer frame plate and the two first trays. The transmission unit includes a motor fixed to the side wall of the transfer frame plate. Two synchronous gears are rotatably assembled inside the transfer frame plate, and a synchronous toothed belt is provided between the two synchronous gears. The rotating shafts of the two synchronous gears are located between the two rectangular slots. The output end of the motor is connected to one of the synchronous gears for transmission. The end faces of the two first trays that are close to each other are fixed to the synchronous toothed belt.

[0007] Preferably, the carrier plate unit includes a second tray located above the first tray. The upper surface of the second tray is fixedly provided with a plurality of groups of support blocks arranged in a matrix. The number of support blocks is consistent with the number of single boards in the circuit board assembly, and the number of support blocks in each group is at least two. A conical top rod is fixedly provided on the top of each support block, and a through hole for the conical top rod to pass through is opened in the single board. A limiting component is provided on the outer surface of each conical top rod. A rotating component is also provided at the bottom of the second tray.

[0008] Preferably, the limiting component includes a cavity formed inside the conical top rod, and two symmetrically distributed limiting swing arms are rotatably mounted inside the cavity. When the limiting swing arms are in a vertical state, they are housed inside the cavity. When the limiting swing arms are in a horizontal state, they extend out of the cavity, and the lower end face of the cavity presses against the upper end face of the circuit board. The rotating end of the limiting swing arm is a toothed gear, and a rack is driven between the two toothed gears. The rack is vertically distributed. A sliding sleeve ring is slidably mounted inside the support block, and the lower end of the rack is fixed to the sliding sleeve ring. A first spring is fixedly provided between the bottom of the sliding sleeve ring and the support block. A pull rod that slides through the support block and the second tray is also fixedly provided on the lower end face of the sliding sleeve ring, and the first spring is distributed outside the pull rod. Pulling elements are provided at the bottom of several pull rods.

[0009] Preferably, the pulling member includes a connecting rod located below the second tray, and the bottom of the pulling rod is fixed to the connecting rod. The first tray has a circular groove inside for accommodating the connecting rod, and a sleeve is coaxially arranged at the center of the circular groove. The end of each connecting rod away from the pulling rod is fixed to the sleeve. A sleeve plate is fixedly fitted on the outer surface of the sleeve. Two symmetrically distributed limiting rods are fixedly arranged inside each rectangular groove. The two limiting rods are distributed on both sides of the sleeve. The limiting rods slide against the upper end surface of the sleeve plate, and the limiting rods are provided with two symmetrically distributed curved parts. The curved parts are curved upwards. Under the action of the two curved parts, the two ends of the limiting rods are lower than the middle section of the limiting rods.

[0010] Preferably, the distance the rack moves up and down is a, the circumference of the toothed gear is b, and a ≥ b / 4.

[0011] Preferably, the rotating component includes a rotating column fixed to the bottom of the second tray. The rotating column is located inside the sleeve. The second tray and the first tray are rotatably assembled, and the rotation center is the center of the circular groove. The axes of the sleeve, the rotating column, and the circular groove are collinear. A limiting gear is fixedly sleeved on the bottom of the rotating column. A limiting frame is provided on the outside of each limiting gear, and the limiting frame is fixed to the upper end face of the equipment platform. The limiting frame is parallel to the rectangular groove. A number of tooth blocks are fixedly provided on one of the long inner walls of the limiting frame. The number of tooth blocks is one-quarter of the number of teeth of the limiting gear. The tooth blocks are distributed between the two plate cutting machines.

[0012] Preferably, the toothed blocks are distributed below the middle section of the limiting rod.

[0013] Preferably, a stabilizing component is further provided between the first tray and the rotating column. The stabilizing component includes two circumferentially equidistant limiting arms fixed to the lower end face of the first tray. The end of the limiting arm away from the first tray slides in contact with the outer surface of the rotating column. A sliding plate is slidably provided inside the lower end of the limiting arm, and the axis of the sliding plate intersects perpendicularly with the axis of the rotating column. A dome-shaped braking column is fixedly provided through the limiting arm at the end of the sliding plate near the rotating column, and a second spring is fixedly provided between the other end of the sliding plate and the limiting arm. The outer surface of the rotating column has four arcuate grooves that cooperate with the dome-shaped braking column.

[0014] Preferably, the arc groove is hemispherical in shape, and the edge of the arc groove is provided with a rounded chamfer.

[0015] Preferably, the end face of the limiting clamp arm near the rotating column is an arc end face, and the arc end face covers the outer surface of the rotating column.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention enables the synchronous toothed belt to move two carrier units in opposite directions synchronously through the transmission unit. The two carrier units alternately feed the robot arm. During the movement of the carrier units carrying the circuit board assembly, the circuit board assembly is split into horizontal and vertical sections by two board cutting machines. This allows the circuit board to be directly transported to the bottom of the robot arm without the need for manual placement of each circuit board. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the electric motor position distribution structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the position distribution structure of the limiting swing arm of the present invention;

[0021] Figure 4 This is a schematic diagram of the synchronous toothed belt and synchronous gear structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the limiting gear and tooth block structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the support block and cone-shaped rod structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the positional distribution of the connecting rod and sleeve of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0026] Figure 9 This is a schematic diagram of the curved section structure of the present invention;

[0027] Figure 10 For the present invention Figure 9 Enlarged view of section B in the middle.

[0028] In the diagram: 1. Equipment platform; 2. Transfer frame plate; 3. Guide rail; 4. Slider; 5. First tray; 6. Synchronous gear; 7. Synchronous toothed belt; 8. Motor; 9. Second tray; 10. Circuit board; 11. Support block; 12. Conical top rod; 13. Sliding sleeve ring; 14. Rack; 15. Pull rod; 16. First spring; 17. Cavity; 18. Limiting swing arm; 19. Sleeve; 20. Connecting rod; 21. Sleeve disc; 22. Limiting rod; 23. Bending part; 24. Rotating column; 25. Limiting gear; 26. Limiting frame; 27. Tooth block; 28. Limiting clamping arm; 29. ​​Slide plate; 30. Dome brake column; 31. Second spring; 32. Arc groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-10 The diagram shows a board-separating and transporting device for pre-processing of circuit boards for air conditioner inverters before programming. It includes: an equipment platform 1 and a transfer frame plate 2 fixed on the upper surface of the equipment platform 1. The transfer frame plate 2 has two symmetrically distributed rectangular slots inside. Each rectangular slot has two symmetrically distributed guide rails 3 fixedly installed on its upper edge. A first tray 5 is installed above the two guide rails 3 on the same side. The bottom of the first tray 5 is fixedly fitted with a slider 4 that slides with the guide rails 3. Two board-separating cutting machines are also fixedly suspended above each rectangular slot. The cutting blades of the two board-separating cutting machines are used to perform transverse and longitudinal cutting of the connecting boards, thereby automatically cutting the connecting boards into single boards 10 during transportation.

[0031] It also includes: a carrier plate unit, which is used to carry the connecting plate and transfer it towards the direction of the robot arm. The carrier plate unit is set above the first tray 5. During the movement of the carrier plate unit carrying the circuit board 10 connecting plate, it will be separated by two board cutting machines.

[0032] The transmission unit is used to drive the two carrier plate units to move alternately with the connecting plate for feeding. The transmission unit is set between the transfer frame plate 2 and the two first trays 5. The transmission unit includes a motor 8 fixed to the side wall of the transfer frame plate 2. Two synchronous gears 6 are rotatably assembled inside the transfer frame plate 2, and a synchronous toothed belt 7 is provided between the two synchronous gears 6. The rotating shafts of the two synchronous gears 6 are located between two rectangular slots. The output end of the motor 8 is connected to one of the synchronous gears 6 for transmission. The end faces of the two first trays 5 that are close to each other are fixed to the synchronous toothed belt 7. When the motor 8 drives one of the synchronous gears 6 to drive, the operation of the synchronous toothed belt 7 enables the two first trays 5 to move synchronously in opposite directions.

[0033] The carrier unit includes a second tray 9 located above the first tray 5. Several sets of support blocks 11 arranged in a matrix are fixedly installed on the upper surface of the second tray 9. The number of support blocks 11 is the same as the number of single boards in the circuit board 10 assembly, and each set of support blocks 11 has at least two blocks. A conical top rod 12 is fixedly installed on the top of each support block 11, and a through hole for the conical top rod 12 to pass through is opened in the single board. A rotating component is also provided at the bottom of the second tray 9. When the first tray 5 moves the second tray 9 toward the direction of the robot arm, the rotating component can cause the second tray 9 to deflect 90 degrees above the first tray 5, so that the two board cutting machines can perform horizontal and vertical cutting of the circuit board 10 assembly.

[0034] The rotating component includes a rotating column 24 fixed to the bottom of the second tray 9. The rotating column 24 is located inside the sleeve 19. The second tray 9 and the first tray 5 are rotatably assembled. A limiting gear 25 is fixedly sleeved on the bottom of the rotating column 24. Each limiting gear 25 is provided with a limiting frame 26 on its outside. The limiting frame 26 is fixed to the upper end face of the equipment platform 1. The limiting frame 26 is parallel to the rectangular groove. Several tooth blocks 27 are fixedly provided on one of the long inner walls of the limiting frame 26. The number of tooth blocks 27 is one-quarter of the number of teeth of the limiting gear 25. The tooth blocks 27 are distributed between the two plate cutting machines. When the first tray 5 moves with the second tray 9, the second tray 9 can be deflected ninety degrees above the first tray 5 through the meshing action of the tooth blocks 27 and the limiting gear 25.

[0035] The toothed blocks 27 are located below the middle section of the limiting rod 22, meaning that the second tray 9 will only deflect ninety degrees when the circuit board 10 is in a pressed state and moves.

[0036] Example 2: Please refer to Figure 3 and Figures 7-9 This embodiment is a further description of the first embodiment. Each conical top rod 12 has a limiting component on its outer surface. This limiting component can restrict the circuit board 10 to the upper end face of the support block 11, preventing easy wobbling. The limiting component includes a cavity 17 formed inside the conical top rod 12. Two symmetrically distributed limiting swing arms 18 are rotatably mounted inside the cavity 17. When the limiting swing arms 18 are in a vertical state, they are housed inside the cavity 17. When the limiting swing arms 18 are in a horizontal state, they extend out of the cavity 17, and the lower end face of the cavity 17 presses against... On the upper surface of the circuit board 10, the rotating end of the limiting swing arm 18 is a toothed gear. A rack 14 is installed between the two toothed gears, and the rack 14 is vertically distributed. A sliding sleeve ring 13 is slidably installed inside the support block 11, and the lower end of the rack 14 is fixed to the sliding sleeve ring 13. A first spring 16 is fixedly installed between the bottom of the sliding sleeve ring 13 and the support block 11. A pull rod 15 that slides through the support block 11 and the second tray 9 is also fixedly installed on the lower end surface of the sliding sleeve ring 13, and the first spring 16 is distributed on the outside of the pull rod 15. Pulling elements are provided at the bottom of several pull rods 15. Figure 8 The first spring 16 is in a compressed state, while the limiting arm 18 is in a retracted state. When the pulling member no longer restricts the pull rod 15, the pull rod 15, under the elastic push of the first spring 16, will cause the rack 14 to move upward, thereby allowing the two limiting arms 18 to unfold and press against the circuit board 10.

[0037] The pulling component includes a connecting rod 20 located below the second tray 9, with the bottom of the pull rod 15 fixed to the connecting rod 20. The first tray 5 has a circular groove inside to accommodate the connecting rod 20, with the center of rotation at the center of the groove. The sleeve 19, the rotating column 24, and the axis of the circular groove are collinear. The sleeve 19 is coaxially mounted at the center of the circular groove. The end of each connecting rod 20 away from the pull rod 15 is fixed to the sleeve 19. A sleeve plate 21 is fixedly fitted onto the outer surface of the sleeve 19. Two symmetrically distributed limiting rods 22 are fixedly mounted inside each rectangular groove. Rods 22 are distributed on both sides of sleeve 19. The limiting rods 22 slide against the upper end face of the sleeve plate 21. The limiting rods 22 are provided with two symmetrically distributed curved parts 23, and the curved parts 23 are curved upward. Under the action of the two curved parts 23, the two ends of the limiting rods 22 are lower than the middle position of the limiting rods 22. When the first tray 5 moves towards the middle position of the limiting rods 22 with the second tray 9, the sleeve plate 21 will move upward under the action of several first springs 16, that is, the rack 14 moves upward to make the limiting swing arm 18 unfold.

[0038] The distance that the rack 14 moves up and down is a, and the circumference of the toothed gear is b. a≥b / 4, that is, when the rack 14 moves up and causes the limiting arm 18 to unfold, the limiting arm 18 can effectively elastically press the circuit board 10.

[0039] Example 3: Please refer to Figure 9 and Figure 10 This embodiment is a further explanation of other embodiments. A stabilizing component is also provided between the first tray 5 and the rotating column 24. The stabilizing component includes two circumferentially distributed limiting clamps 28 fixed to the lower end face of the first tray 5. The end of the limiting clamp 28 away from the first tray 5 slides in contact with the outer surface of the rotating column 24. A sliding plate 29 is slidably provided inside the lower end of the limiting clamp 28, and the axis of the sliding plate 29 intersects perpendicularly with the axis of the rotating column 24. A dome brake column 30 that passes through the limiting clamp 28 is fixedly provided at the end of the sliding plate 29 near the rotating column 24, and a second spring 31 is fixedly provided between the other end of the sliding plate 29 and the limiting clamp 28. An arc groove 32 that cooperates with the dome brake column 30 is opened on the outer surface of the rotating column 24, and there are four arc grooves 32. Through the interlocking action of the dome brake column 30 and the arc groove 32, the stability of the rotating column 24 in the undeflected state can be guaranteed.

[0040] The arc groove 32 is hemispherical in shape, and the edge of the arc groove 32 is provided with rounded chamfers. Through the rounded chamfers of the edge of the arc groove 32, the dome brake pin 30 can be subjected to a large torsional force and slide out of the arc groove 32.

[0041] The end face of the limiting clamp 28 near the rotating column 24 is an arc end face, and the arc end face covers the outer surface of the rotating column 24. By using the arc end face of the limiting clamp 28, the rotating column 24 can be better stabilized and centered.

[0042] Working principle: (Reference) Figure 2 The two second trays 9 are initially positioned one in front of the other. Several conical push rods 12 above the second trays 9 place the connecting plate of the circuit board 10 onto the upper surface of the support block 11. The limiting effect of the multiple conical push rods 12 on the connecting plate also prevents it from tilting. When the synchronous toothed belt 7 is driven by the motor 8, the two first trays 5 move synchronously in opposite directions with the second trays 9. When the second trays 9 move towards the middle of the transfer frame plate 2, the transition effect of the bending part 23 allows the sleeve 21 to move upward with the rack 14 under the elastic pressure of several first springs 16. This causes the limiting swing arms 18 inside each conical push rod 12 to unfold and elastically press against the upper surface of the circuit board 10, thus ensuring... The stability of the connecting plate is ensured by the fact that during the movement of the connecting plate in the middle of the transfer frame plate 2, it will be cut by two slitting cutting machines. The cutting blades of the slitting cutting machines can cut the connection between two adjacent single boards. Since the toothed blocks 27 are distributed in front of the two slitting cutting machines, and when the rotating column 24 with the limiting gear 25 passes the toothed blocks 27, the meshing action of the limiting gear 25 and the toothed blocks 27 can cause the rotating column 24 to deflect the second tray 9 by ninety degrees. That is, after the first slitting cutting machine cuts the connecting plate for the first time, the connecting plate will rotate ninety degrees and be cut a second time by the second slitting cutting machine. Through the two cutting processes, the connecting plate can be cut horizontally and vertically, thereby cutting the connecting plate into single boards of the circuit board 10.

[0043] The above-mentioned feeding method allows workers to directly place the connecting board of circuit board 10. As the connecting board moves toward the robot, it can be cut into individual boards, thereby improving the automation level of feeding circuit board 10 to the robot and improving work efficiency.

[0044] In this scheme, each time the limiting gear 25 meshes and rotates with the tooth block 27, the arc groove 32 pushes the round top of the dome brake column 30 into the interior of the limiting clamp arm 28. After the rotating column 24 rotates ninety degrees, the dome brake column 30 will be embedded in the interior of another arc groove 32 under the elastic push of the second spring 31, thereby continuing to restrict the rotating column 24, that is, preventing the second tray 9 from deflecting arbitrarily above the first tray 5, and ensuring the accuracy of the second tray 9 in carrying and transporting the circuit board 10.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A board separation and transportation device for pre-processing of air conditioner inverter circuit boards before programming, characterized in that, include: The equipment platform (1) and the transfer rack plate (2) fixed on the upper surface of the equipment platform (1) have two rectangular slots inside. Two symmetrically distributed guide rails (3) are fixedly provided on the upper edge of each rectangular slot. A first tray (5) is provided above the two guide rails (3) on the same side. A slider (4) that slides with the guide rails (3) is fixed at the bottom of the first tray (5). Two plate cutting machines are also fixedly suspended above each rectangular slot. The cutting blades of the two plate cutting machines are used to perform transverse and longitudinal cutting of the connecting plate. Also includes: A carrier plate unit is used to carry the connecting plate and transfer it towards the direction of the robot arm. The carrier plate unit is disposed above the first tray (5). A transmission unit is used to drive two carrier plate units to move alternately with connecting plates for feeding. The transmission unit is located between the transfer frame plate (2) and the two first trays (5). The transmission unit includes a motor (8) fixed to the side wall of the transfer frame plate (2). The transfer frame plate (2) is internally equipped with two synchronous gears (6), and a synchronous toothed belt (7) is provided between the two synchronous gears (6). The output end of the motor (8) is connected to one of the synchronous gears (6) for transmission. The two first trays (5) are fixed to the synchronous toothed belt (7) at their respective close ends. The carrier plate unit includes a second tray (9) located above the first tray (5). The upper surface of the second tray (9) is fixedly provided with a number of support blocks (11) arranged in a matrix, and the number of each set of support blocks (11) is at least two. Each support block (11) is fixedly provided with a conical top rod (12) at its top, and a through hole for the conical top rod (12) to pass through is opened in the single plate. Each conical top rod (12) is provided with a limit component on its outer surface. The bottom of the second tray (9) is also provided with a rotating component. The limiting component includes a cavity (17) opened inside the cone top rod (12), and two symmetrically distributed limiting swing arms (18) are rotatably mounted inside the cavity (17). The rotating end of the limiting swing arm (18) is a toothed gear, and a rack (14) is driven between the two toothed gears. A sliding sleeve ring (13) is slidably mounted inside the support block (11), and the lower end of the rack (14) is fixed to the sliding sleeve ring (13). A first spring (16) is fixedly provided between the bottom of the sliding sleeve ring (13) and the support block (11). A pull rod (15) that slides through the support block (11) and the second tray (9) is also fixedly provided on the lower end face of the sliding sleeve ring (13). Pulling members are provided at the bottom of several pull rods (15). The pulling component includes a connecting rod (20) located below the second tray (9), and the bottom of the pull rod (15) is fixed to the connecting rod (20). The first tray (5) has a circular groove inside for accommodating the connecting rod (20), and a sleeve (19) is coaxially arranged at the center of the circular groove. The end of each connecting rod (20) away from the pull rod (15) is fixed to the sleeve (19). A sleeve plate (21) is fixedly fitted on the outer surface of the sleeve (19). Two symmetrically distributed limiting rods (22) are fixedly arranged inside each rectangular groove. The limiting rods (22) slide against the upper end surface of the sleeve plate (21), and two symmetrically distributed curved parts (23) are provided on the limiting rods (22). Under the action of the two curved parts (23), the two ends of the limiting rods (22) are lower than the middle section of the limiting rods (22).

2. The board separation and transportation device for pre-processing of air conditioner inverter circuit board programming according to claim 1, characterized in that: The distance the rack (14) moves up and down is a, the circumference of the toothed gear is b, and a≥b / 4.

3. The board separation and transportation device for pre-processing of air conditioner inverter circuit board programming according to claim 2, characterized in that: The rotating component includes a rotating column (24) fixed to the bottom of the second tray (9). The rotating column (24) is located inside the sleeve (19). The second tray (9) and the first tray (5) are rotatably assembled. A limiting gear (25) is fixedly sleeved on the bottom of the rotating column (24). A limiting frame (26) is provided on the outside of each limiting gear (25). The limiting frame (26) is fixed on the upper end face of the equipment platform (1). A number of tooth blocks (27) are fixedly provided on one of the long inner walls of the limiting frame (26). The number of tooth blocks (27) is one-quarter of the number of teeth of the limiting gear (25).

4. The board separation and transportation device for pre-processing of air conditioner inverter circuit board programming according to claim 3, characterized in that: The toothed blocks (27) are located below the middle section of the limiting rod (22).

5. The board separation and transportation device for pre-processing of air conditioner inverter circuit board programming according to claim 3, characterized in that: A stabilizing component is also provided between the first tray (5) and the rotating column (24). The stabilizing component includes two circumferentially distributed limiting clamps (28) fixed on the lower end face of the first tray (5). The end of the limiting clamp (28) away from the first tray (5) slides in contact with the outer surface of the rotating column (24). A sliding plate (29) is slidably provided inside the lower end of the limiting clamp (28). A dome brake column (30) is fixedly provided at the end of the sliding plate (29) close to the rotating column (24). A second spring (31) is fixedly provided between the other end of the sliding plate (29) and the limiting clamp (28). An arc groove (32) that cooperates with the dome brake column (30) is opened on the outer surface of the rotating column (24). The number of the arc grooves (32) is four.

6. The board separation and transportation device for pre-processing of air conditioner inverter circuit board programming according to claim 5, characterized in that: The arc groove (32) is hemispherical in shape, and the edge of the arc groove (32) is provided with rounded chamfers.

7. The board separation and transportation device for pre-processing of air conditioner inverter circuit board programming according to claim 5, characterized in that: The end face of the limiting clamp (28) near the rotating column (24) is an arc end face, and the arc end face covers the outer surface of the rotating column (24).

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