A visual inspection mechanism based on PCB new material glue dispensing
By introducing a vision inspection mechanism and a flipping unit into the dispensing equipment, the problem of difficulty in detecting defects after dispensing on PCB circuit boards is solved, achieving efficient glue inspection and flipping, and ensuring dispensing quality and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU ANCHUANTAI TECH CO LTD
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing dispensing equipment struggles to detect defects promptly after dispensing onto PCB circuit boards, leading to issues such as adhesive leakage, which impacts processing efficiency and product quality.
Design a visual inspection mechanism based on a new PCB adhesive material, including an inspection mechanism and a flipping unit. The mechanism uses an optical inspection probe to detect the effectiveness of the adhesive in real time, and combines a clamping plate and a flipping unit to ensure the quality of dispensing.
It enables timely detection of adhesive dispensing on PCB circuit boards, avoids adhesive leakage, improves dispensing quality and processing efficiency, and ensures the mechanical reliability and electrical performance of products.
Smart Images
Figure CN122385476A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of PCB circuit board processing and inspection equipment, specifically a visual inspection mechanism based on the dispensing of new PCB material adhesive. Background Technology
[0002] As electronic manufacturing technology advances towards higher density, miniaturization, and higher integration, PCB circuit boards are widely used in consumer electronics, new energy, industrial control and communication, and automotive electronics. To meet the high-temperature resistance, insulation, moisture resistance, thermal conductivity, and shock resistance requirements of high-end PCBs, the industry is gradually promoting the application of new PCB-specific adhesives such as modified epoxy resins, silicone composite adhesives, and UV-curable adhesives. These new materials and adhesives feature adjustable viscosity, fast curing speed, high bonding strength, and excellent aging resistance. In the PCB manufacturing process, the dispensing process is a critical step. Adhesives are mainly used for PCB component encapsulation, circuit protection, gap filling, and thermal sealing. The quality of dispensing directly determines the insulation performance, lifespan, and safety of the PCB circuit board.
[0003] The effectiveness of PCB board dispensing directly determines the mechanical reliability, electrical performance, and service life of the product. Defects such as insufficient glue, glue overflow, glue breakage, glue width, air bubbles, stringing, and glue misalignment can lead to problems such as weak adhesion, poor thermal conductivity, insulation failure, solder joint corrosion, and short circuits, seriously affecting product quality and mass production yield. However, existing dispensing equipment directly discharges the PCB board after dispensing, requiring manual inspection of the PCB board. If glue leakage occurs, it is difficult to replenish the glue in time, and subsequent replenishment requires separate replenishment, affecting the processing efficiency of the PCB board. Summary of the Invention
[0004] The purpose of this invention is to provide a visual inspection mechanism based on adhesive dispensing of new PCB materials, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A visual inspection mechanism for dispensing PCB adhesive based on a new PCB material includes: a device base and two mounting shells symmetrically fixed on the top of the device base; two vertically distributed drive carriages are arranged between the two mounting shells; a dispensing gun and a curing lamp are installed on the inner side of the drive carriages; clamps for holding PCB circuit boards are provided on the corresponding side of the two mounting shells; and a conveyor for transporting PCB circuit boards is installed on the top of the device base. Also includes: The testing mechanism inspects the adhesive applied to the surface of a PCB circuit board. The testing mechanism is mounted on the top of the device base and includes two symmetrically fixed support plates fixedly mounted on the top of the device base. A first electric slide is fixedly mounted between the two support plates. A second electric slide is mounted on the bottom of the first electric slide. A mounting plate is mounted on the bottom of the second electric slide. Multiple optical detection probes distributed at equal intervals are mounted on the bottom of the mounting plate. A flipping unit for flipping the PCB circuit board is also provided on the inner side of the mounting housing.
[0006] Preferably, the flipping unit includes a mounting cylinder disposed inside the mounting housing, an mounting tube disposed inside the mounting cylinder, an elastic telescopic rod fixedly mounted at one end of the mounting tube near the clamping plate, and an end of the elastic telescopic rod away from the mounting tube fixedly connected to the clamping plate. Two reciprocating screws are rotatably mounted inside the mounting housing, and a drive motor cooperating with the reciprocating screws is mounted at the bottom of the mounting housing. Two symmetrically distributed moving blocks are fixedly mounted on the outer side of the mounting cylinder, and the two moving blocks are threadedly assembled with the two reciprocating screws respectively. The inner side of the mounting housing is fixedly equipped with... The mounting tube is equipped with an optical shaft for limiting the sliding of the movable block. A prismatic rod is slidably mounted on the inner side of the mounting tube. A gear is fixedly mounted on the end of the prismatic rod away from the mounting tube. A U-shaped slide rail is fixedly mounted on the inner side of the mounting housing. The gear is located on the inner side of the U-shaped slide rail. A first rack and a second rack are fixedly mounted on the inner side of the U-shaped slide rail. The length of the second rack is twice that of the first rack. A material-fixing component for automatically positioning the PCB circuit board is also provided on the side of the clamping plate near the mounting housing. A dust-cleaning component for cleaning the side of the PCB circuit board is also provided on the inner side of the mounting housing.
[0007] Preferably, the material fixing assembly includes a prismatic slider slidably mounted inside the mounting cylinder. The mounting cylinder has a prismatic through-hole for limiting the sliding movement of the prismatic slider. The prismatic slider has a cavity for the mounting tube to pass through. A positioning ring is fixedly mounted on the outside of the mounting tube. A positioning groove for mounting the positioning ring is formed in the prismatic through-hole of the prismatic slider. Two symmetrically distributed sliding rods are fixedly mounted on the outside of the prismatic slider. An elongated groove for limiting the sliding movement of the sliding rods is formed on the outside of the mounting cylinder. Two symmetrically distributed first guide rails are fixedly mounted on the inside of the mounting housing. The sliding rods are slidably mounted inside the first guide rails. The top of the first guide rails has an inclined structure. A second guide rail for limiting the sliding movement of the sliding rods is fixedly mounted on the top of the first guide rails. The second guide rail has a vertical structure.
[0008] Preferably, the dust removal assembly includes an elastic airbag disposed inside the mounting cylinder. The two ends of the elastic airbag are respectively fixedly installed between the inner side of the mounting cylinder and the outer side of the prismatic slider. A one-way exhaust valve is fixedly installed at the end of the elastic airbag away from the prismatic slider. A telescopic air pipe is fixedly installed at the end of the one-way exhaust valve away from the elastic airbag. An exhaust nozzle is fixedly installed at the end of the telescopic air pipe away from the one-way exhaust valve. A groove for installing the exhaust nozzle is provided on the outer side of the clamping plate. A one-way air inlet valve extending to the outer side of the mounting cylinder is fixedly installed on the outer side of the elastic airbag.
[0009] Preferably, a plurality of support belts are fixedly installed on the outer side of the conveyor in a centrally symmetrical distribution.
[0010] Preferably, a plurality of rubber ribs distributed at equal intervals are fixedly installed on one side of the clamping plate.
[0011] Preferably, a mounting plate is fixedly installed between the gear and the prismatic rod. A rotating ring is provided on the side of the mounting plate near the mounting cylinder. The rotating ring is connected to the mounting plate through multiple support rods. An annular frame is fixedly installed on the end of the mounting cylinder near the rotating ring. The rotating ring is rotatably installed on the inner side of the annular frame.
[0012] Preferably, the inner side of the slide rod is hollow, and a stop block is slidably installed on the inner side of the slide rod. A spring is fixedly installed between the stop block and the inner side of the slide rod. The end of the stop block away from the spring is hemispherical. A sliding hole is provided on the outer side of the prismatic slider for the stop block to slide in a limiting manner. Four spherical grooves are provided on the outer side of the positioning ring for the stop block to be inserted in a limiting manner. The spherical grooves on the positioning ring are one-third spherical in shape.
[0013] Preferably, a limiting block is fixedly installed at one end of the abutment block near the spring, and a sliding groove is provided on the inner side of the slide rod for the limiting block to slide in a limited manner.
[0014] Preferably, a pulley is rotatably mounted at the end of the slide rod away from the prismatic slider, and guide grooves for limiting the sliding of the pulley are provided on the outer sides of both the first guide rail and the second guide rail.
[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention, through a detection mechanism, enables the PCB circuit board to be transported by a conveyor to the area below multiple optical detection probes after the glue gun and curing lamp have applied glue and cured the PCB circuit board. With the cooperation of the first and second electric slides, the optical detection probes can detect the glue on the surface of the PCB circuit board, promptly detect the effectiveness of the glue, avoid glue leakage, and thus ensure the glue application quality of the PCB circuit board. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mounting plate and optical detection probe structure in this invention; Figure 3 This is a schematic diagram of the mounting shell and clamping plate structure in this invention; Figure 4 This is a schematic diagram of the pulley and the first guide rail structure in this invention; Figure 5 This is a schematic diagram of the U-shaped slide rail and slide rod structure in this invention; Figure 6 This is a schematic diagram of the mounting cylinder and turntable structure in this invention; Figure 7 This is a schematic diagram of the prismatic rod and mounting tube structure in this invention; Figure 8 This is a schematic diagram of the abutment block and positioning ring structure in this invention; Figure 9 This is a schematic diagram of the elastic airbag and exhaust nozzle structure in this invention.
[0017] In the diagram: 1. Device base; 2. Mounting housing; 3. Drive carriage; 4. Dispensing gun; 5. Curing lamp; 6. Clamping plate; 7. Mounting cylinder; 8. Mounting tube; 9. Elastic telescopic rod; 10. Reciprocating screw; 11. Moving block; 12. Optical axis; 13. Prismatic rod; 14. Gear; 15. U-shaped slide rail; 16. First rack; 17. Second rack; 18. Prismatic slider; 19. Positioning ring; 20. Slide rod; 21. Pulley; 22. First guide rail; 23. Second guide rail; 24. Elastic airbag; 25. One-way exhaust valve; 26. Telescopic air pipe; 27. Exhaust nozzle; 28. One-way air intake valve; 29. Conveyor; 30. Support belt; 31. Rubber rib; 32. Mounting plate; 33. Rotary ring; 34. Annular frame; 35. Abutment block; 36. Spring; 37. Limiting block; 38. Support plate; 39. First electric slide; 40. Second electric slide; 41. Mounting plate; 42. Optical detection probe. Detailed Implementation
[0018] 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.
[0019] Example 1: Please refer to Figures 1-9The diagram shows a visual inspection mechanism for dispensing PCB adhesive based on a new PCB material. It includes a base 1 and two symmetrically fixed mounting housings 2 on the top of the base 1. Two vertically distributed drive carriages 3 are positioned between the two mounting housings 2. A dispensing gun 4 and a curing lamp 5 are mounted on the inner side of each drive carriage 3, enabling the drive carriages 3 to drive the dispensing gun 4 horizontally. During the dispensing process, the curing lamp 5 cures the adhesive surface. Each mounting housing 2 has a clamping plate 6 on one corresponding side for holding the PCB circuit board. Multiple equidistant rubber ribs 31 are fixedly mounted on one side of the clamping plate 6 to increase the friction between the clamping plate 6 and the PCB circuit board to be processed. A conveyor 29 for transporting the PCB circuit board is mounted on the top of the base 1. The conveyor 29 consists of a frame, a conveyor belt, two drive rollers, and a motor. The motor drives the drive rollers to rotate, causing the drive rollers to rotate the conveyor belt, thus transporting the PCB circuit board. The testing mechanism inspects the adhesive applied to the surface of a PCB circuit board. The testing mechanism is mounted on top of a base 1 and includes two symmetrically fixed support plates 38 on the top of the base 1. A first motorized slide 39 is fixedly mounted between the two support plates 38. A second motorized slide 40 is mounted on the bottom of the first motorized slide 39. A mounting plate 41 is mounted on the bottom of the second motorized slide 40. Multiple equidistant optical inspection probes 42 are mounted on the bottom of the mounting plate 41. The optical inspection probes 42 are Hikvision industrial area scan cameras, model MV-CA0. After the 50-20GM glue gun 4 and curing lamp 5 apply glue to the PCB circuit board and cure it, the conveyor 29 transports the PCB circuit board to the area below multiple optical inspection probes 42. The first electric slide 39 drives the second electric slide 40 to move longitudinally, and the second electric slide 40 drives the mounting plate 41 to move laterally, so that the optical inspection probes 42 on the mounting plate 41 can detect the glue on the surface of the PCB circuit board and detect the effectiveness of the glue in time to avoid glue leakage. The inner side of the mounting housing 2 is also provided with a flipping unit for flipping the PCB circuit board.
[0020] Example 2: Please refer to Figures 1-9This embodiment further explains Example 1. The flipping unit shown in the figure includes a mounting cylinder 7 disposed inside the mounting housing 2. A mounting tube 8 is disposed inside the mounting cylinder 7. An elastic telescopic rod 9 is fixedly installed at one end of the mounting tube 8 near the clamping plate 6. The end of the elastic telescopic rod 9 away from the mounting tube 8 is fixedly connected to the clamping plate 6. Two reciprocating screws 10 are rotatably mounted inside the mounting housing 2. A drive motor that cooperates with the reciprocating screws 10 is installed at the bottom of the mounting housing 2. The drive motor can drive the two reciprocating screws 10 to rotate. Two symmetrically distributed moving blocks 11 are fixedly mounted on the outer side of the mounting cylinder 7. The two moving blocks 11 are respectively threadedly assembled with the two reciprocating screws 10. And a movable part is fixedly installed inside the mounting housing 2. The optical axis 12, which limits the sliding of block 11, allows the drive motor to drive the moving block 11 to move vertically back and forth along the outer side of the optical axis 12 via the reciprocating screw 10 when it is running. The two moving blocks 11 can drive the mounting cylinder 7 to move synchronously. A prismatic rod 13 is slidably installed on the inner side of the mounting tube 8. A gear 14 is fixedly installed at the end of the prismatic rod 13 away from the mounting tube 8. When the gear 14 rotates, it can drive the mounting tube 8 to rotate via the prismatic rod 13. The mounting tube 8 can then drive the clamping plate 6 to rotate via the elastic telescopic rod 9, thereby realizing the rotation of the PCB circuit board. A U-shaped slide rail 15 is fixedly installed on the inner side of the mounting housing 2. The gear 14 is located on the inner side of the U-shaped slide rail 15. A first rack 16 and a second rack 1 are fixedly installed on the inner side of the U-shaped slide rail 15. 7. The length of the second rack 17 is twice that of the first rack 16, allowing the gear 14 to contact the first rack 16 when moving upwards. As the gear 14 moves, the first rack 16 can rotate the clamping plate 6 ninety degrees, aligning one side of the PCB circuit board with the first dispensing gun 4 and the curing lamp 5. With the movement of the PCB circuit board, the dispensing gun 4 and the curing lamp 5 apply adhesive and cure the electronic components on the PCB circuit board. Multiple centrally symmetrical support belts 30 are fixedly installed on the outer side of the conveyor 29, allowing the PCB circuit board to be placed on the support belts 30 for easy loading and unloading. The height difference between the PCB circuit board and the conveyor 29 also facilitates the clamping plate 6's alignment with the P... For CB circuit board positioning, a mounting plate 32 is fixedly installed between gear 14 and prismatic rod 13. A rotating ring 33 is provided on the side of the mounting plate 32 near the mounting cylinder 7. The rotating ring 33 is connected to the mounting plate 32 through multiple support rods. An annular frame 34 is fixedly installed on the end of the mounting cylinder 7 near the rotating ring 33. The rotating ring 33 is rotatably installed on the inner side of the annular frame 34, so that when gear 14 rotates, it can drive the rotating ring 33 to rotate along the inner side of the annular frame 34 through the mounting plate 32, providing positioning for gear 14 and improving the smoothness of gear 14 rotation. A material fixing component for automatic positioning of PCB circuit board is also provided on the side of clamping plate 6 near mounting housing 2. A dust cleaning component for cleaning the side of PCB circuit board is also provided on the inner side of mounting housing 2.
[0021] Example 3: Please refer to Figures 4-8 This embodiment further illustrates other embodiments. The material fixing assembly shown in the figure includes a prismatic slider 18 slidably mounted inside the mounting cylinder 7. The inner side of the mounting cylinder 7 has a prismatic through-hole for limiting the sliding of the prismatic slider 18. The inner side of the prismatic slider 18 has a cavity for the mounting tube 8 to pass through. A positioning ring 19 is fixedly mounted on the outer side of the mounting tube 8. A positioning groove for mounting the positioning ring 19 is formed in the prismatic through-hole of the prismatic slider 18, so that when the mounting tube 8 rotates, it can drive the positioning ring 19 to rotate along the positioning groove of the prismatic slider 18. Two symmetrically distributed sliding rods 20 are fixedly mounted on the outer side of the prismatic slider 18. The mounting housing 2 has a long groove for limiting the sliding of the slide rod 20. Two symmetrically distributed first guide rails 22 are fixedly installed on the inner side of the mounting housing 2. The slide rod 20 is slidably mounted on the inner side of the first guide rails 22. The top of the first guide rails 22 is inclined, allowing the slide rod 20 to move along the inclined end of the first guide rails 22 when moving upwards. This allows the slide rod 20 to move along the long groove of the mounting cylinder 7, thus pulling the prismatic slider 18. The prismatic slider 18, through the positioning ring 19, pulls the mounting tube 8 along the outer side of the prismatic rod 13. A second guide rail 2 is fixedly installed at the top of the first guide rails 22 for limiting the sliding of the slide rod 20. 3. The second guide rail 23 is a vertical structure. The inner side of the slide rod 20 is hollow. A stop block 35 is slidably installed on the inner side of the slide rod 20. A spring 36 is fixedly installed between the stop block 35 and the inner side of the slide rod 20. The end of the stop block 35 away from the spring 36 is hemispherical. The outer side of the prismatic slider 18 is provided with a sliding hole for the stop block 35 to slide in a limited position. The outer side of the positioning ring 19 is provided with four centrally symmetrical spherical grooves for the stop block 35 to be inserted in a limited position. The spherical grooves on the positioning ring 19 are one-third spherical. When the positioning ring 19 rotates, it can push the stop block 35 along the inner side of the slide rod 20 through the spherical grooves, so that the stop block 35 engages with the spring 36. When the positioning ring 19 stops rotating, the spring 36's rebound force causes the abutment 35 to insert into another spherical groove. The elastic potential energy of the spring 36 provides positioning for the positioning ring 19, maintaining the angle of the clamping plate 6. A limit block 37 is fixedly installed on the end of the abutment 35 near the spring 36. A groove is provided on the inner side of the slide rod 20 for the limit block 37 to slide in a limited manner. A pulley 21 is rotatably installed on the end of the slide rod 20 away from the prismatic slider 18. Guide grooves are provided on the outer sides of the first guide rail 22 and the second guide rail 23 for the pulley 21 to slide in a limited manner, so that the pulley 21 provides support for the slide rod 20 and improves the smoothness of the slide rod 20's movement.
[0022] Example 4: Please refer to Figure 6 and Figure 9This embodiment further illustrates other embodiments. The dust removal assembly shown in the figure includes an elastic airbag 24 disposed inside the mounting cylinder 7. Both ends of the elastic airbag 24 are fixedly installed between the inner side of the mounting cylinder 7 and the outer side of the prismatic slider 18, respectively, so that when the prismatic slider 18 moves, it can compress the elastic airbag 24. A one-way exhaust valve 25 is fixedly installed at the end of the elastic airbag 24 away from the prismatic slider 18. A telescopic air pipe 26 is fixedly installed at the end of the one-way exhaust valve 25 away from the elastic airbag 24. An exhaust nozzle 2 is fixedly installed at the end of the telescopic air pipe 26 away from the one-way exhaust valve 25. 7. When the elastic airbag 24 is compressed, air can be injected into the exhaust nozzle 27 through the one-way exhaust valve 25 and the telescopic air tube 26. The exhaust nozzle 27 can clean the dust on the side and surface of the PCB circuit board, preventing the dust from affecting the clamping and positioning of the PCB circuit board by the clamping plate 6. The outer side of the clamping plate 6 is provided with a groove for the installation of the exhaust nozzle 27. The outer side of the elastic airbag 24 is fixedly installed with a one-way air inlet valve 28 extending to the outer side of the mounting cylinder 7, so that when the rhomboid slider 18 is reset, the elastic airbag 24 can draw in outside air through the one-way air inlet valve 28.
[0023] Working principle: First, the operator places the PCB circuit board on the rubber ribs 31 of the conveyor 29, allowing the conveyor 29 to transport the PCB circuit board between the two clamping plates 6. At this time, the drive motor runs, driving the two reciprocating screws 10 to rotate synchronously. The two reciprocating screws 10 drive the corresponding moving blocks 11 to move upward along the outer side of the optical axis 12, causing the moving blocks 11 to move the mounting cylinder 7 upward. At this time, the mounting cylinder 7 drives the sliding rod 20 on the prismatic slider 18 to move upward synchronously, causing the sliding rod 20 to move along the inclined end of the first guide rail 22 and along the long groove of the mounting cylinder 7. The sliding rod 20 pulls the prismatic slider 18 to move along the inner side of the mounting cylinder 7. At this time, the prismatic slider 18 moves against the elastic airbag 2. 4. Compression causes the elastic airbag 24 to pump air into the exhaust nozzle 27 through the one-way exhaust valve 25 and the telescopic air pipe 26. The exhaust nozzle 27 then sprays air onto the outer side and surface of the PCB circuit board to clean the dust on the PCB circuit board. Subsequently, the prismatic slider 18 pulls the mounting tube 8 along the outer side of the prismatic rod 13 through the positioning ring 19, causing the mounting tube 8 to move the clamping plate 6 against the outer side of the PCB circuit board through the elastic telescopic rod 9. The elasticity of the elastic telescopic rod 9 allows the two clamping plates 6 to elastically clamp the outer side of the PCB circuit board, thus positioning the PCB circuit board. Then, the mounting tube 8 drives the gear 14 to move upward through the prismatic rod 13, causing the gear 14 to contact the first rack 16. As the gear 14 moves... The first rack 16 can drive the gear 14 to rotate 90 degrees. The gear 14 drives the prismatic rod 13 to rotate, which in turn drives the mounting tube 8 to rotate. The mounting tube 8 can then drive the clamping plate 6 to rotate synchronously via the elastic telescopic rod 9. The two clamping plates 6 can drive the PCB circuit board to rotate 90 degrees, so that one side of the PCB circuit board is aligned with the first dispensing gun 4 and the curing lamp 5. At the same time, the mounting tube 8 drives the positioning ring 19 to rotate. The spherical groove on the positioning ring 19 pushes the abutment 35 to move along the inner side of the slide rod 20, causing the abutment 35 to compress the spring 36. When the gear 14 stops rotating, the spring 36's rebound force causes the abutment 35 to insert into another spherical groove. The elastic potential energy of the spring 36 provides positioning for the positioning ring 19, keeping the clamping plate in place. At an angle of 6, the clamping plate 6 then drives the PCB circuit board to move upwards continuously, allowing the dispensing gun 4 and curing lamp 5 on the first drive slide 3 to dispense and cure the electronic components on the PCB circuit board. Then, gear 14 contacts the second rack 17, causing the second rack 17 to drive gear 14 to rotate 180 degrees, aligning the other side of the PCB circuit board with the second drive slide 3. The dispensing gun 4 and curing lamp 5 on the second drive slide 3 can then dispense and cure the electronic components on the other side of the PCB circuit board. Subsequently, the reciprocating screw 10 drives the moving block 11 to reset downwards. When the slide 20 returns to the first guide rail 22, the two clamping plates 6 can release the PCB circuit board and place it on the support belt 30.This process completes the double-sided dispensing and curing of the PCB circuit board. At this time, the conveyor 29, via the support belt 30, moves the PCB circuit board below the mounting plate 41, allowing multiple optical inspection probes 42 at the bottom of the mounting plate 41 to image and inspect the PCB circuit board. The first motorized slide 39 drives the second motorized slide 40 to move longitudinally, and the second motorized slide 40 drives the mounting plate 41 to move laterally. This ensures that the optical inspection probes 42 can comprehensively image and inspect the PCB circuit board, preventing adhesive leakage on the surface and guaranteeing the quality of the dispensing.
[0024] 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.
[0025] 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 visual inspection mechanism based on PCB new material adhesive dispensing, characterized in that, include: The device base (1) is symmetrically mounted on the top of the device base (1) and two mounting shells (2). Two drive carriages (3) are provided between the two mounting shells (2). A glue gun (4) and a curing lamp (5) are installed on the inner side of the drive carriages (3). A clamping plate (6) is provided on the corresponding side of the two mounting shells (2). A conveyor (29) for conveying PCB circuit boards is installed on the top of the device base (1). Also includes: The testing mechanism is used to test the adhesive applied to the surface of the PCB circuit board. The testing mechanism is installed on the top of the device base (1). The testing mechanism includes two support plates (38) that are symmetrically fixed on the top of the device base (1). A first electric slide (39) is fixedly installed between the two support plates (38). A second electric slide (40) is installed at the bottom of the first electric slide (39). A mounting plate (41) is installed at the bottom of the second electric slide (40). A plurality of optical detection probes (42) are installed at equal intervals at the bottom of the mounting plate (41). A flipping unit for flipping the PCB circuit board is also provided on the inner side of the mounting housing (2).
2. The visual inspection mechanism based on PCB new material adhesive dispensing according to claim 1, characterized in that: The flipping unit includes a mounting cylinder (7) disposed inside the mounting housing (2). An mounting tube (8) is disposed inside the mounting cylinder (7). An elastic telescopic rod (9) is fixedly mounted at one end of the mounting tube (8). One end of the elastic telescopic rod (9) is fixedly connected to the clamping plate (6). Two reciprocating screws (10) are rotatably mounted inside the mounting housing (2). A drive motor cooperating with the reciprocating screws (10) is mounted at the bottom of the mounting housing (2). Two moving blocks (11) are fixedly mounted on the outer side of the mounting cylinder (7). The two moving blocks (11) are threadedly assembled with the two reciprocating screws (10) respectively. The inner side of the mounting housing (2) is also equipped with... There is an optical axis (12) for limiting the sliding of the moving block (11). A prism rod (13) is slidably installed on the inner side of the mounting tube (8). A gear (14) is fixedly installed at one end of the prism rod (13). A U-shaped slide rail (15) is installed on the inner side of the mounting shell (2). A first rack (16) and a second rack (17) are fixedly installed on the inner side of the U-shaped slide rail (15). The length of the second rack (17) is twice that of the first rack (16). A material fixing component for automatically positioning the PCB circuit board is also provided on the side of the clamping plate (6) near the mounting shell (2). A dust cleaning component for cleaning the side of the PCB circuit board is also provided on the inner side of the mounting shell (2).
3. The visual inspection mechanism based on PCB new material adhesive dispensing according to claim 2, characterized in that: The material fixing assembly includes a prismatic slider (18) slidably mounted inside the mounting cylinder (7). The inner side of the mounting cylinder (7) has a prismatic through-hole for limiting the sliding of the prismatic slider (18). The inner side of the prismatic slider (18) has a cavity for the mounting tube (8) to pass through. A positioning ring (19) is fixedly mounted on the outer side of the mounting tube (8). A positioning groove for mounting the positioning ring (19) is formed inside the prismatic through-hole of the prismatic slider (18). The outer side of the prismatic slider (18) is fixedly mounted with… There are two sliding rods (20). The outer side of the mounting cylinder (7) is provided with a long groove for limiting the sliding of the sliding rods (20). Two first guide rails (22) are installed on the inner side of the mounting housing (2). The sliding rods (20) are slidably installed on the inner side of the first guide rails (22). The top of the first guide rails (22) is inclined. The top of the first guide rails (22) is fixedly installed with a second guide rail (23) for limiting the sliding of the sliding rods (20). The second guide rail (23) is a vertical structure.
4. The visual inspection mechanism based on PCB new material adhesive dispensing according to claim 3, characterized in that: The dust removal assembly includes an elastic airbag (24) disposed inside the mounting cylinder (7). The two ends of the elastic airbag (24) are respectively fixedly installed between the inner side of the mounting cylinder (7) and the outer side of the prismatic slider (18). One end of the elastic airbag (24) is equipped with a one-way exhaust valve (25). One end of the one-way exhaust valve (25) is fixedly installed with a telescopic air pipe (26). One end of the telescopic air pipe (26) is fixedly installed with an exhaust nozzle (27). The outer side of the clamp (6) is provided with a groove for installing the exhaust nozzle (27). The outer side of the elastic airbag (24) is fixedly installed with a one-way air inlet valve (28) extending to the outer side of the mounting cylinder (7).
5. The visual inspection mechanism based on PCB new material adhesive dispensing according to claim 1, characterized in that: Multiple support belts (30) are fixedly installed on the outside of the conveyor (29).
6. The visual inspection mechanism based on PCB new material adhesive dispensing according to claim 2, characterized in that: Multiple rubber reinforcing strips (31) are fixedly installed on one side of the clamp (6).
7. A visual inspection mechanism based on PCB new material adhesive dispensing according to claim 2, characterized in that: An mounting plate (32) is fixedly installed between the gear (14) and the prism rod (13). A rotating ring (33) is provided on the side of the mounting plate (32) near the mounting cylinder (7). The rotating ring (33) is connected to the mounting plate (32) through multiple support rods. An annular frame (34) is fixedly installed at one end of the mounting cylinder (7). The rotating ring (33) is rotatably installed on the inner side of the annular frame (34).
8. A visual inspection mechanism based on PCB new material adhesive dispensing according to claim 3, characterized in that: The inner side of the slide rod (20) is hollow. A stop block (35) is slidably installed on the inner side of the slide rod (20). A spring (36) is fixedly installed between the stop block (35) and the inner side of the slide rod (20). One end of the stop block (35) is hemispherical. The outer side of the prismatic slider (18) is provided with a sliding hole for the stop block (35) to be limited and slid. The outer side of the positioning ring (19) is provided with four spherical grooves for the stop block (35) to be limited and inserted.
9. A visual inspection mechanism based on PCB new material adhesive dispensing according to claim 8, characterized in that: A limiting block (37) is fixedly installed at one end of the abutment (35) near the spring (36), and a groove is provided on the inner side of the slide rod (20) for the limiting block (37) to slide in a limited manner.
10. A visual inspection mechanism based on PCB new material adhesive dispensing according to claim 3, characterized in that: A pulley (21) is rotatably mounted on the end of the slide bar (20) away from the prism slider (18). Guide grooves for limiting the sliding of the pulley (21) are provided on the outer sides of the first guide rail (22) and the second guide rail (23).