A PCBA dispensing machine based on intelligent module

By introducing intelligent modules and intelligent control systems into the PCBA dispenser, the precise movement of the glue gun in the X, Y, and Z axes and the precise delivery of the PCB are achieved, which solves the problems of high error rate and low efficiency in the existing technology, and achieves high-precision and flexible dispensing process and improved production management efficiency.

CN119771694APending Publication Date: 2025-04-08HELLA BHAP ELECTRONICS JIANGSU CO LTD
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Patent Information

Application Number
CN202411710886.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The existing PCBA dispensers rely on manual operation, resulting in high error rate and low efficiency, which cannot meet the needs of intelligent operating systems.

Method used

A PCBA dispenser based on intelligent modules is designed, using an intelligent control system, a first displacement mechanism and a second displacement mechanism, combined with the camera and MES system, to realize the precise movement of the glue gun in the X, Y, and Z axes and the precise delivery of the PCB.

Benefits of technology

It realizes a high-precision and flexible dispensing process, reduces the error rate, improves work efficiency, and improves the efficiency of production management and traceability of product quality through the integration of intelligent control system and MES system.

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Abstract

The invention discloses a PCBA dispensing machine based on an intelligent module, comprising an intelligent control system, a first displacement mechanism, a second displacement mechanism, a glue gun, and a bottom plate. The first displacement mechanism and the second displacement mechanism are installed on the bottom plate. The first displacement mechanism is used to control the glue gun to move in the directions of an X-axis, a Y-axis, and a Z-axis. The second displacement mechanism is used to convey a PCB. The intelligent control system comprises a controller, a camera, and a mes system. The controller is used to control the operation of the first displacement mechanism and the second displacement mechanism. A barcode and a reference mark representing a number are provided on the PCB. The camera is used to identify the barcode and the reference mark and detect the status of the processed PCB. The mes system is used to receive information transmitted by the camera.
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Description

Technical Field

[0001] The invention relates to a PCBA glue dispensing machine based on an intelligent module. Background Art

[0002] The PCBA dispensing machine is an automated device that is specifically used to control fluids and drip and apply fluids to the surface or inside of products. It is mainly used for the precise dotting, injection, coating, and dripping of liquids such as glue and paint in the product process to the precise position of each product, and can achieve operations such as dotting, drawing lines, circles or arcs. The working principle of the PCBA dispensing machine is mainly based on pneumatic and hydraulic technology. Its components include dispensing valves, pressure tanks, piping systems, control systems, and operating panels. The glue is heated and sprayed out through the nozzle and transported to the dispensing valve through the piping system. The control system controls the flow, pressure, and injection time of the glue, and the operating panel allows the operator to set and adjust these parameters.

[0003] As intelligent operating systems are gradually popularized in various industries, the work of existing dispensing machines can no longer meet current work needs. Although the existing dispensing machines have a high level of mechanization, they still rely on manual operation, and the dispensing work still requires manual operation of the machine. Therefore, the error rate, error degree and work efficiency of the dispensing process still have a lot of room for improvement. Summary of the invention

[0004] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a PCBA dispensing machine based on an intelligent module.

[0005] A PCBA dispensing machine based on an intelligent module comprises an intelligent control system, a first displacement mechanism, a second displacement mechanism, a glue gun, and a bottom plate. The first displacement mechanism and the second displacement mechanism are installed on the bottom plate. The first displacement mechanism is used to control the glue gun to move in the X-axis, Y-axis, and Z-axis directions. The second displacement mechanism is used to transport PCBs. The intelligent control system comprises a controller, a camera, and a mes system. The controller is used to control the operation of the first displacement mechanism and the second displacement mechanism. A barcode and a reference mark representing a number are provided on the PCB. The camera is used to identify the barcode and the reference mark and detect the status of the processed PCB. The mes system is used to receive information transmitted by the camera.

[0006] Furthermore, the displacement mechanism includes an X-direction displacement mechanism, a Y-direction displacement mechanism, and a Z-direction displacement mechanism. The X-direction displacement mechanism is connected to the Y-direction displacement mechanism, the Z-direction displacement mechanism is connected to the X-direction displacement mechanism, and the glue gun is connected to the Z-direction displacement mechanism.

[0007] Furthermore, the Y-direction displacement mechanism comprises a first mounting plate, a second mounting plate, and a first driving mechanism, the first mounting plate and the second mounting plate are both provided with a first sliding block and a first sliding rail for sliding cooperation, the first sliding block is provided with a third mounting plate, and the third mounting plate is used for installing the X-direction displacement mechanism.

[0008] The first driving mechanism is installed on the first mounting plate or the second mounting plate and is located on the side of the first slide rail. The first driving mechanism includes a first motor, a first screw rod, a first mounting seat, and a first slide seat. The first screw rod is rotatably connected in the first mounting seat, the output end of the first motor is connected to one end of the first screw rod, the first slide seat is slidably sleeved on the first screw rod, and the first slide seat is connected to the third mounting plate.

[0009] Furthermore, both ends of the bottom surface of the first mounting plate and the mounting plate are connected to one end of a column, and the other end is connected to the bottom plate.

[0010] Furthermore, the X-axis displacement mechanism includes a second slide rail, a second slider, and a second driving mechanism. The second slide rail is fixed on a third mounting plate. The second slider slides in sliding cooperation with the second slide rail. The second driving mechanism includes a second motor, a second mounting seat, a second screw rod, and a second slide seat. The second mounting seat is arranged on the side of the second slide rail. The second screw rod is rotatably connected to the second mounting seat. The second slide seat is sleeved on the second screw rod. One end of the second screw rod is connected to the output end of the second motor. The second slide seat and the second slider are connected to the bottom surface of the first connecting seat. The front end surface of the first connecting seat is connected to the fourth mounting plate. The fourth mounting plate is used to install the Z-axis displacement mechanism.

[0011] Furthermore, the Z-axis displacement mechanism includes a third motor, a third screw rod, a third slide, and a third mounting seat. The third mounting seat is installed on the surface of the fourth mounting plate. The third screw rod is rotatably connected in the third mounting seat. The third slide is sleeved on the third screw rod. One end of the third screw rod is connected to the output end of the third motor. The third slide is provided with a fixed seat and a camera, and the glue gun is installed on the fixed seat.

[0012] Furthermore, the second displacement mechanism includes a fourth motor, a first support, a second support, and an adjustment mechanism. The first support and the second support are installed on the base plate. The first support and the second support are both provided with a pulley mechanism. The first support and the second support are arranged in parallel. The fourth motor is used to drive the pulley mechanism.

[0013] Further, the adjustment mechanism includes a plurality of screw rods, a plurality of second connecting seats, and a plurality of sliding mechanisms, the sliding mechanism includes a third slider and a third slide rail, the screw rod sequentially passes through the first support, the second support, and the second connecting seat, the two ends of the screw rod are rotatably connected to the first support and the second connecting seat respectively, the first support and the second connecting seat are fixedly mounted on the bottom plate, and the second support is threadedly connected to the screw rod;

[0014] The third slide rail is fixed on the bottom plate, the third slider is slidably matched with the third slide rail, and the third slider is fixedly connected to the bottom of the second support.

[0015] Furthermore, the pulley mechanism includes a first pulley, a second pulley, a first auxiliary pulley, a second auxiliary pulley, a transmission wheel, and a transmission belt. The first pulley and the second pulley are respectively located at the two ends of the first support or the second support, the transmission wheel is located below the first pulley and the second pulley, the first auxiliary pulley and the second auxiliary pulley are located on both sides of the transmission wheel, the first auxiliary pulley is located between the first pulley and the transmission wheel, the second auxiliary wheel is located between the second pulley and the transmission wheel, the transmission belt is arranged between the first pulley, the second pulley, the first auxiliary wheel, the second auxiliary wheel, and the transmission wheel, the first pulley, the second pulley, and the transmission wheel are located on the inner side of the transmission belt, the first auxiliary wheel and the second auxiliary wheel are located on the outer side of the transmission belt, and the output end of the fourth motor is connected to one of the transmission wheels.

[0016] Furthermore, a synchronous wheel is provided at one end of the screw rod, a synchronous belt is provided between the synchronous wheels, and a rotating handle is also provided at one end of one of the screw rods.

[0017] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0018] High precision and flexibility: Through the combination of the first displacement mechanism and the second displacement mechanism, the glue gun can move accurately in the X-axis, Y-axis, and Z-axis directions, and the PCB can be accurately transported. This precise positioning capability in three-dimensional space ensures the accuracy and flexibility of the dispensing process.

[0019] Intelligent control: The intelligent control system integrates the controller, camera and MES system, which can automatically identify the barcode and reference mark on the PCB, so as to achieve accurate identification and positioning of the PCB. At the same time, the camera can also detect the condition of the processed PCB to ensure product quality. The integration of the MES system improves the efficiency and traceability of production management.

[0020] Modular design: The displacement mechanism is subdivided into X-axis, Y-axis and Z-axis displacement mechanisms. The displacement in each direction is achieved through an independent drive mechanism and slide rail system. This modular design makes equipment maintenance and upgrades more convenient.

[0021] Stable structure: The Y-axis displacement mechanism ensures the stability and reliability of the entire displacement mechanism through the stable connection of the first mounting plate, the second mounting plate, the first drive mechanism and the column. At the same time, the X-axis and Z-axis displacement mechanisms also adopt a similar stable design, further improving the overall stability of the equipment.

[0022] Efficient conveying system: The second displacement mechanism realizes fast and stable conveying of PCBs through the combination of the pulley mechanism and the adjustment mechanism. The design of the adjustment mechanism allows the height and position of the pulley mechanism to be flexibly adjusted to accommodate PCBs of different sizes.

[0023] Convenient adjustment and maintenance: The screw and sliding mechanism design in the adjustment mechanism makes it easy to adjust the height and tilt angle of the pulley mechanism. At the same time, the synchronous wheel and synchronous belt design at one end of the screw allows multiple screws to rotate synchronously, further simplifying the adjustment process. In addition, the setting of the rotating handle also makes manual adjustment more convenient.

[0024] Optimized pulley mechanism: The combined design of the first pulley, the second pulley, the first auxiliary wheel, the second auxiliary wheel and the transmission wheel in the pulley mechanism ensures the stable operation and long life of the transmission belt. At the same time, this design also reduces the wear and noise of the belt during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a PCBA dispensing machine based on an intelligent module;

[0026] Figure 2 is a schematic diagram of the first displacement mechanism;

[0027] Figure 3 is a schematic diagram of a first drive mechanism;

[0028] Figure 4 It is a schematic diagram of the position of the X-axis displacement mechanism on the overall mechanism;

[0029] Figure 5 is a schematic diagram of the Z-direction displacement mechanism;

[0030] Figure 6 is a schematic diagram of the second displacement mechanism;

[0031] Figure 7 This is a schematic diagram of the camera on the dispensing machine;

[0032] In the figure, Y-axis displacement mechanism 1, X-axis displacement mechanism 2, Z-axis displacement mechanism 3, fixed seat 4, glue gun 5, second displacement mechanism 6, first mounting plate 7, first slide rail 8, first slider 9, third mounting plate 10, fourth mounting plate 11, first motor 12, first mounting seat 13, first screw rod 14, first slider 15, second slider 16, second slide rail 17, second motor 18, second mounting seat 19, second screw rod 20, second slider 21, first connecting seat 22, third motor 23, third mounting seat 24, third screw rod 25, third slider 26, first support 27, second support 28, first pulley 29, second pulley 30, first auxiliary wheel 31, transmission wheel 32, second auxiliary wheel 33, transmission belt 34, screw rod 35, second connecting seat 36, third slider 37, third slide rail 38, synchronous wheel 39, synchronous belt 40, rotating handle 41, camera 42. DETAILED DESCRIPTION

[0033] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0034] like Figure 1-7 As shown, Y-axis displacement mechanism 1, X-axis displacement mechanism 2, Z-axis displacement mechanism 3, fixing seat 4, glue gun 5, second displacement mechanism 6, first mounting plate 7, first slide rail 8, first slider 9, third mounting plate 10, fourth mounting plate 11, first motor 12, first mounting seat 13, first screw rod 14, first slider 15, second slider 16, second slide rail 17, second motor 18, second mounting seat 19, second screw rod 20, second slider 21, first connecting seat 22, third motor 23, third mounting seat 24, third screw rod 25, third slider 26, first support 27, second support 28, first pulley 29, second pulley 30, first auxiliary wheel 31, transmission wheel 32, second auxiliary wheel 33, transmission belt 34, screw rod 35, second connecting seat 36, third slider 37, third slide rail 38, synchronous wheel 39, synchronous belt 40, rotating handle 41, camera 42;

[0035] A PCBA dispensing machine based on an intelligent module includes an intelligent control system, a first displacement mechanism, a second displacement mechanism 6, a glue gun 5, and a base plate. The first displacement mechanism and the second displacement mechanism 6 are installed on the base plate. The first displacement mechanism is used to control the glue gun 5 to move in the X-axis, Y-axis, and Z-axis directions. The second displacement mechanism 6 is used to transport PCBs. The intelligent control system includes a controller, a camera 42, and a mes system. The controller is used to control the first displacement mechanism and the second displacement mechanism 6 to work. A barcode and a reference mark representing a number are provided on the PCB. The camera 42 is used to identify the barcode and the reference mark and detect the status of the processed PCB. The mes system is used to receive information transmitted by the camera 42.

[0036] It should be noted that each PCB has an independent label to distinguish each PCB. The barcode is recognized by the camera 42 to read the label of the PCB and upload it to the MES system. An independent file is created for the PCB with the label. After the glue dispensing work, the glue dispensing status of the PCB is photographed and the data is uploaded to the corresponding file in the MES system. The data can be traced back and viewed according to the label later.

[0037] After the camera 42 takes the dispensing status image, it will compare it with the preset control group image to detect the dispensing width and confirm whether there are abnormal phenomena such as glue breakage, glue leakage, small or large amount of glue, etc. If it meets the standards, the PCB will be transported to the "qualified" position and wait for the next process. If it does not meet the standards, the PCB will be transported to the "unqualified" position, and an alarm will be issued to wait for manual re-judgment.

[0038] In this example, the displacement mechanism includes an X-axis displacement mechanism 2, a Y-axis displacement mechanism 1, and a Z-axis displacement mechanism 3. The X-axis displacement mechanism 2 is connected to the Y-axis displacement mechanism 1, the Z-axis displacement mechanism 3 is connected to the X-axis displacement mechanism 2, and the glue gun 5 is connected to the Z-axis displacement mechanism 3.

[0039] In this example, the Y-axis displacement mechanism 1 includes a first mounting plate 7, a second mounting plate, and a first driving mechanism. The first mounting plate 7 and the second mounting plate are both provided with a first sliding block 9 and a first sliding rail 8 that are slidably matched. The first sliding block 9 is provided with a third mounting plate 10. The third mounting plate 10 is used to install the X-axis displacement mechanism 2.

[0040] The first driving mechanism is installed on the first mounting plate 7 or the second mounting plate, and is located on the side of the first slide rail 8. The first driving mechanism includes a first motor 12, a first screw rod 14, a first mounting seat 13, and a first slide seat 15. The first screw rod 14 is rotatably connected in the first mounting seat 13, the output end of the first motor 12 is connected to one end of the first screw rod 14, the first slide seat 15 is slidably sleeved on the first screw rod 14, and the first slide seat 15 is connected to the third mounting plate 10.

[0041] In this example, the first mounting plate 7 has two ends of the bottom surface of the mounting plate connected to one end of the column, and the other end of the column is connected to the bottom plate.

[0042] In this example, the X-axis displacement mechanism 2 includes a second slide rail 17, a second slider 16, and a second driving mechanism. The second slide rail 17 is fixed on the third mounting plate 10, and the second slider 16 slides with the second slide rail 17. The second driving mechanism includes a second motor 18, a second mounting seat 19, a second screw rod 20, and a second slide seat 21. The second mounting seat 19 is arranged on the side of the second slide rail 17, and the second screw rod 20 is rotatably connected in the second mounting seat 19. The second slide seat 21 is sleeved on the second screw rod 20. One end of the second screw rod 20 is connected to the output end of the second motor 18, the second slide seat 21 and the second slider 16 are connected to the bottom surface of the first connecting seat 22, and the front end surface of the first connecting seat 22 is connected to the fourth mounting plate 11. The fourth mounting plate 11 is used to install the Z-axis displacement mechanism 3.

[0043] In this example, the Z-axis displacement mechanism 3 includes a third motor 23, a third screw rod 25, a third slide 26, and a third mounting seat 24. The third mounting seat 24 is installed on the surface of the fourth mounting plate 11. The third screw rod 25 is rotatably connected in the third mounting seat 24. The third slide 26 is sleeved on the third screw rod 25. One end of the third screw rod 25 is connected to the output end of the third motor 23. The third slide 26 is provided with a fixed seat 4 and a camera 42, and the glue gun 5 is installed on the fixed seat 4.

[0044] In this example, the second displacement mechanism 6 includes a fourth motor, a first support 27, a second support 28, and an adjustment mechanism. The first support 27 and the second support 28 are installed on the base plate. The first support 27 and the second support 28 are both provided with a pulley mechanism. The first support 27 and the second support 28 are arranged in parallel. The fourth motor is used to drive the pulley mechanism.

[0045] In this example, the adjustment mechanism includes a plurality of screws 35, a plurality of second connection seats 36, and a plurality of sliding mechanisms. The sliding mechanism includes a third slider 37 and a third slide rail 38. The screw 35 passes through the first support 27, the second support 28, and the second connection seat 36 in sequence. Both ends of the screw 35 are rotatably connected to the first support 27 and the second connection seat 36 respectively. The first support 27 and the second connection seat 36 are fixedly mounted on the bottom plate, and the second support 28 is threadedly connected to the screw 35.

[0046] The third slide rail 38 is fixed on the bottom plate, the third slider 37 is slidably matched with the third slide rail 38 , and the third slider 37 is fixedly connected to the bottom of the second support 28 .

[0047] In this example, the pulley mechanism includes a first pulley 29, a second pulley 30, a first auxiliary wheel 31, a second auxiliary wheel 33, a transmission wheel 32, and a transmission belt 34. The first pulley 29 and the second pulley 30 are respectively located at the two ends of the first support 27 or the second support 28, the transmission wheel 32 is located below the first pulley 29 and the second pulley 30, the first auxiliary wheel 31 and the second auxiliary wheel 33 are located on both sides of the transmission wheel 32, the first auxiliary wheel 31 is located between the first pulley 29 and the transmission wheel 32, the second auxiliary wheel 33 is located between the second pulley 30 and the transmission wheel 32, the transmission belt 34 is passed through the first pulley 29, the second pulley 30, the first auxiliary wheel 31, the second auxiliary wheel 33, and the transmission wheel 32, the first pulley 29, the second pulley 30, and the transmission wheel 32 are located on the inner side of the transmission belt 34, the first auxiliary wheel 31 and the second auxiliary wheel 33 are located on the outer side of the transmission belt 34, and the output end of the fourth motor is connected to one of the transmission wheels 32.

[0048] In this embodiment, a synchronous wheel 39 is disposed at one end of the screw rod 35 , and a synchronous belt 40 is disposed between the synchronous wheels 39 . A rotating handle 41 is also disposed at one end of one of the screw rods 35 .

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A PCBA dispensing machine based on an intelligent module, characterized in that: It includes an intelligent control system, a first displacement mechanism, a second displacement mechanism, a glue gun, and a base plate. The first displacement mechanism and the second displacement mechanism are installed on the base plate. The first displacement mechanism is used to control the glue gun to move in the X-axis, Y-axis, and Z-axis directions. The second displacement mechanism is used to transport PCBs. The intelligent control system includes a controller, a camera, and a mes system. The controller is used to control the operation of the first displacement mechanism and the second displacement mechanism. The PCB is provided with a barcode and a reference mark representing a number. The camera is used to identify the barcode and the reference mark and detect the status of the processed PCB. The mes system is used to receive information transmitted by the camera.

2. A PCBA dispensing machine based on an intelligent module according to claim 1, characterized in that: The displacement mechanism includes an X-direction displacement mechanism, a Y-direction displacement mechanism, and a Z-direction displacement mechanism. The X-direction displacement mechanism is connected to the Y-direction displacement mechanism, the Z-direction displacement mechanism is connected to the X-direction displacement mechanism, and the glue gun is connected to the Z-direction displacement mechanism.

3. A PCBA dispensing machine based on an intelligent module according to claim 2, characterized in that: The Y-direction displacement mechanism comprises a first mounting plate, a second mounting plate, and a first driving mechanism. The first mounting plate and the second mounting plate are both provided with a first sliding block and a first sliding rail for sliding cooperation. The first sliding block is provided with a third mounting plate, and the third mounting plate is used for installing the X-direction displacement mechanism. The first driving mechanism is installed on the first mounting plate or the second mounting plate and is located on the side of the first slide rail. The first driving mechanism includes a first motor, a first screw rod, a first mounting seat, and a first slide seat. The first screw rod is rotatably connected in the first mounting seat, the output end of the first motor is connected to one end of the first screw rod, the first slide seat is slidably sleeved on the first screw rod, and the first slide seat is connected to the third mounting plate.

4. A PCBA dispensing machine based on an intelligent module according to claim 3, characterized in that: The first mounting plate and the bottom surfaces of the mounting plate are both connected with one end of the column, and the other end of the column is connected to the bottom plate.

5. A PCBA dispensing machine based on an intelligent module according to claim 4, characterized in that: The X-axis displacement mechanism includes a second slide rail, a second slider, and a second driving mechanism. The second slide rail is fixed on the third mounting plate. The second slider slides in sliding cooperation with the second slide rail. The second driving mechanism includes a second motor, a second mounting seat, a second screw rod, and a second slide seat. The second mounting seat is arranged on the side of the second slide rail. The second screw rod is rotatably connected to the second mounting seat. The second slide seat is sleeved on the second screw rod. One end of the second screw rod is connected to the output end of the second motor. The second slide seat and the second slider are connected to the bottom surface of the first connecting seat. The front end surface of the first connecting seat is connected to the fourth mounting plate. The fourth mounting plate is used to install the Z-axis displacement mechanism.

6. A PCBA dispensing machine based on an intelligent module according to claim 5, characterized in that: The Z-axis displacement mechanism includes a third motor, a third screw rod, a third slide, and a third mounting seat. The third mounting seat is installed on the surface of the fourth mounting plate. The third screw rod is rotatably connected in the third mounting seat. The third slide is sleeved on the third screw rod. One end of the third screw rod is connected to the output end of the third motor. A fixed seat and a camera are provided on the third slide, and a glue gun is installed on the fixed seat.

7. The PCBA dispensing machine based on the intelligent module according to claim 1, characterized in that: The second displacement mechanism includes a fourth motor, a first support, a second support, and an adjustment mechanism. The first support and the second support are installed on the base plate. The first support and the second support are both provided with a pulley mechanism. The first support and the second support are arranged in parallel. The fourth motor is used to drive the pulley mechanism.

8. A PCBA dispensing machine based on an intelligent module according to claim 7, characterized in that: The adjusting mechanism comprises a plurality of screw rods, a plurality of second connecting seats, and a plurality of sliding mechanisms, wherein the sliding mechanism comprises a third sliding block and a third sliding rail, wherein the screw rod sequentially passes through the first support, the second support, and the second connecting seat, and the two ends of the screw rod are rotatably connected to the first support and the second connecting seat respectively, the first support and the second connecting seat are fixedly mounted on the bottom plate, and the second support is threadedly connected to the screw rod; The third slide rail is fixed on the bottom plate, the third slider is slidably matched with the third slide rail, and the third slider is fixedly connected to the bottom of the second support.

9. A PCBA dispensing machine based on an intelligent module according to claim 8, characterized in that: The pulley mechanism includes a first pulley, a second pulley, a first auxiliary wheel, a second auxiliary wheel, a transmission wheel, and a transmission belt. The first pulley and the second pulley are respectively located at two ends of the first support or the second support, the transmission wheel is located below the first pulley and the second pulley, the first auxiliary wheel and the second auxiliary wheel are located on both sides of the transmission wheel, the first auxiliary wheel is located between the first pulley and the transmission wheel, the second auxiliary wheel is located between the second pulley and the transmission wheel, the transmission belt is arranged between the first pulley, the second pulley, the first auxiliary wheel, the second auxiliary wheel, and the transmission wheel, the first pulley, the second pulley, and the transmission wheel are located on the inner side of the transmission belt, the first auxiliary wheel and the second auxiliary wheel are located on the outer side of the transmission belt, and the output end of the fourth motor is connected to one of the transmission wheels.

10. A PCBA dispensing machine based on an intelligent module according to claim 9, characterized in that: A synchronous wheel is arranged at one end of the screw rod, a synchronous belt is arranged between the synchronous wheels, and a rotating handle is also arranged at one end of one of the screw rods.