Circuit board glue coating machine

Abstract

The present invention relates to the technical field of circuit board gluing, and in particular to a circuit board gluing machine. It includes a workbench, an electric slide rail, a limit frame I, an electric push rod I, a connecting frame, a mold, etc. The electric slide rail is symmetrically arranged in the workbench, the limit frame I is connected between the sliders of the electric slide rail, the electric push rod I is arranged on the slider of the electric slide rail, the connecting frame is connected between the telescopic rods of the electric push rod I, and the mold is arranged on the connecting frame. The present invention can penetrate the rotating rod in the mold into the mounting hole of the circuit board through the cooperation of the electric push rod I, the connecting frame, the mold, the cylinder I, the connecting plate and the limit frame II, and surround the side of the circuit board. In this way, the glue on the circuit board can be prevented from flowing into the mounting hole and the side of the circuit board when the glue is sprayed, thereby avoiding the glue from affecting the subsequent processing of the circuit board, and the glue on the circuit board can be prevented from sticking to the rotating rod and the inner wall of the limit frame II through the cooperation of the rotating mechanism and the separation mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board gluing, and in particular to a circuit board gluing machine. Background Art

[0002] In the field of modern electronic manufacturing, circuit boards are substrates for interconnecting electronic components, and their quality and reliability directly affect the performance of the entire electronic product. As electronic products develop towards being thin, light, short, multifunctional, and high-density integrated, higher requirements are placed on the manufacturing process of circuit boards, especially in terms of protection and insulation. The gluing process is particularly important. As a key equipment, the technological development and innovation of circuit board gluing machines are directly related to the efficiency and quality of circuit board manufacturing.

[0003] Nowadays, when gluing circuit boards, fully automatic glue spraying machines are usually used to replace traditional manual gluing. When gluing circuit boards, the fully automatic glue spraying machine only needs to spray glue according to a preset program to accurately apply the glue to the specified position of the circuit board, thereby completing the gluing of the circuit board: However, when the existing fully automatic glue spraying machine is gluing, since there are many mounting holes on the circuit board, when the fully automatic glue spraying machine sprays glue at the edge of the mounting hole, the glue is easy to flow into the mounting hole, resulting in glue remaining inside the mounting hole, thereby affecting the subsequent use of the mounting hole, and when the fully automatic glue spraying machine sprays glue on the edge of the circuit board, the glue is also easy to flow to the side of the edge of the circuit board, thereby causing the glue remaining on the side of the subsequent circuit board to easily stick to other objects, affecting the use of the circuit board. Summary of the invention

[0004] In view of this, the present invention provides a circuit board glue coating machine, which can solve the disadvantage that when the existing fully automatic glue spraying machine is coating the circuit board with glue, the glue is easily left in the mounting holes and sides of the circuit board, thus affecting the subsequent processing of the circuit board.

[0005] Technical solution: A circuit board glue coating machine includes a workbench and a three-axis automatic glue coating machine, and also includes an electric slide rail, a limit frame I, an electric push rod I, a connection frame, a mold, a connection frame, a cylinder I, a connection plate, a limit frame II and a separation mechanism. The electric slide rails are symmetrically arranged in the workbench, the limit frame I is connected between the sliders of the electric slide rails, the electric push rod I is arranged on the slider of the electric slide rail, the connection frame is connected between the telescopic rods of the electric push rod I, and the connection frame is provided with a mold, and the mold includes a connection seat, a rotating rod, an electric push rod II, a template and a rotating mechanism The connecting seat is installed on the connecting frame, and a rotating rod is arranged at intervals on the top of the connecting seat for rotation. The rotating rod is used to penetrate into the mounting hole of the circuit board. An electric push rod II is symmetrically arranged on the connecting seat. The template is connected between the telescopic rods of the electric push rod II. The rotating mechanism is used to drive the rotating rod to rotate. A connecting frame is symmetrically arranged on the workbench, and the cylinder I is connected to the connecting frame. The connecting plate is connected between the telescopic rods of the cylinder I. The limit frame II is connected to the connecting plate. The limit frame II is used to surround the side of the circuit board. The separation mechanism is used to separate the rubber material adhered to the limit frame II.

[0006] In one embodiment, the rotating mechanism includes a servo motor and a gear I. The two servo motors are symmetrically arranged on the connecting seat of the mold. Two rows of gears I are rotatably arranged in the connecting seat of the mold. Two adjacent gears I in each row of gears I are meshed, and some of the gears I are connected to the rotating rod. The output shafts of the two servo motors are respectively connected to one of the gears I in the two rows of gears I.

[0007] In one of the embodiments, the separation mechanism includes a fixed frame, a reduction motor, a gear II, a tooth block and a scraper. A slide groove is opened on the limit frame II, the fixed frame is slidably set on the limit frame II, and the fixed frame moves along the slide groove. The reduction motor is installed on the fixed frame, the gear II is connected to the output shaft of the reduction motor, and tooth blocks are arranged at intervals on the outside of the limit frame II. The gear II is meshed with the tooth blocks. The scraper is connected to the fixed frame, the scraper is in contact with the inner wall of the limit frame II, and the scraper is used to separate the rubber material adhered to the limit frame II.

[0008] In one embodiment, the separation mechanism further includes a universal ball, which is disposed on the fixing frame, contacts the connecting plate, and is used to provide support for the fixing frame.

[0009] In one of the embodiments, a drying mechanism is also included, which includes a ventilation frame, an air pump and an air pipe. Ventilation holes are spaced apart in the limit frame II, and ventilation frames are symmetrically arranged on the outside of the limit frame II. The ventilation frames are connected to the ventilation holes, and air pumps are symmetrically arranged on the connecting plate. Both ends of the air pipe are respectively connected to the air outlets of the ventilation frame and the air pump.

[0010] In one of the embodiments, a fixing mechanism is also included, which includes a cylinder II and a clamping plate. The cylinder II is arranged on the slider of the electric slide rail, and the clamping plate is connected to the telescopic rod of the cylinder II, and the clamping plate is used to clamp the circuit board.

[0011] In one of the embodiments, a feeding mechanism is also included, which includes a filling barrel, a connecting pipe, an electrically controlled valve and a fluorescent lamp. The filling barrel is installed on the three-axis automatic glue coating machine, and the filling barrel is used to load the fluorescent powder. The two ends of the connecting pipe are respectively connected to the filling barrel and the glue outlet of the three-axis automatic glue coating machine, the electrically controlled valve is installed on the connecting pipe, and the fluorescent lamp is installed on the connecting plate.

[0012] In one of the embodiments, the feeding mechanism also includes a camera and a processor. The camera is arranged on the fluorescent lamp, the processor is installed on the workbench, and the camera and the three-axis automatic gluing machine are electrically connected to the processor.

[0013] The present invention has the following advantages: 1. The present invention can penetrate the rotating rod in the mold into the mounting hole of the circuit board and surround the side of the circuit board by the cooperation of the electric push rod I, the connecting frame, the mold, the cylinder I, the connecting plate and the limit frame II. In this way, the glue on the circuit board can be prevented from flowing into the mounting hole and the side of the circuit board when the glue is sprayed, thereby preventing the glue from affecting the subsequent processing of the circuit board. In addition, by cooperating with the rotating mechanism and the separating mechanism, the glue on the circuit board can be prevented from sticking to the rotating rod and the inner wall of the limit frame II.

[0014] 2. The present invention provides an air-drying mechanism, which enables the air pump to draw air into the ventilation frame, and discharge the air in the ventilation frame from the ventilation holes, thereby air-drying the glue on the circuit board, thereby accelerating the solidification of the glue on the circuit board and reducing the waiting time.

[0015] 3. The present invention can fix the circuit board with a clamp by setting a fixing mechanism to prevent the rotating rod from lifting the circuit board with friction when passing through the mounting hole of the circuit board, thereby avoiding the circuit board from being displaced and affecting the subsequent gluing.

[0016] 4. The present invention provides a material replenishing mechanism, which can utilize the principle that fluorescent powder emits light when illuminated by a fluorescent lamp, thereby automatically replenishing the area on the circuit board where glue is not applied or where glue is applied less. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the limit frame I, the electric push rod I and the connecting frame of the present invention.

[0019] Figure 3It is a three-dimensional structural schematic diagram of the limit frame I, the electric push rod I and the connecting frame of the present invention.

[0020] Figure 4 It is a cross-sectional view of the limiting frame I and the connecting frame of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the mold of the present invention.

[0022] Figure 6 It is a cross-sectional view of the mold of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the cylinder I, the connecting plate and the limiting frame II of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the limit frame II, the slide groove and the gear II of the present invention.

[0025] Fig. 9 For the present invention Figure 8 Enlarged view of point A in .

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the air-drying mechanism of the present invention.

[0027] Fig.11 It is a three-dimensional structural schematic diagram of the fixing mechanism and the feeding mechanism of the present invention.

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the injection barrel, connecting pipe and electric control valve of the present invention.

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the fluorescent lamp, camera and processor of the present invention.

[0030] In the accompanying drawings: 1, workbench, 101, circuit board, 2, three-axis automatic gluing machine, 3, electric slide rail, 4, limit frame I, 5, electric push rod I, 6, connecting frame, 71, connecting seat, 72, rotating rod, 73, electric push rod II, 74, template, 75, servo motor, 76, gear I, 8, connecting frame, 9, cylinder I, 10, connecting plate, 11, limit frame II, 12, slide groove, 13, fixed frame, 14, reduction motor, 15, gear II, 16, gear block, 17, scraper, 18, universal ball, 19, ventilation hole, 20, ventilation frame, 21, air pump, 22, air pipe, 23, cylinder II, 24, splint, 25, injection barrel, 26, connecting pipe, 27, electric control valve, 28, fluorescent lamp, 29, camera, 30, processor. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0032] Embodiment: A circuit board glue coating machine, see Figure 1-Figure 9 As shown, it includes a workbench 1 and a three-axis automatic glue coating machine 2; the three-axis automatic glue coating machine 2 is installed on the upper inner side of the workbench 1. By using the three-axis automatic glue coating machine 2 to apply glue, the three-axis automatic glue coating machine 2 can automatically spray the glue at the specified position according to a preset program, thereby realizing automatic glue spraying on the circuit board 101;

[0033] It also includes an electric slide rail 3, a limit frame Ⅰ4, an electric push rod Ⅰ5, a connecting frame 6, a mold, a connecting frame 8, a cylinder Ⅰ9, a connecting plate 10, a limit frame Ⅱ11 and a separation mechanism; two electric slide rails 3 are symmetrically arranged on the left and right sides of the workbench 1; the limit frame Ⅰ4 is connected between the sliders of the two electric slide rails 3, and the limit frame Ⅰ4 is used to limit the circuit board 101; two electric push rods Ⅰ5 are arranged on the slider of the electric slide rail 3, and the number of the electric push rods Ⅰ5 is four: the distance between the telescopic rods of the four electric push rods Ⅰ5 A connection frame 6 is connected; a mold is detachably mounted on the connection frame 6, and the mold includes a connection seat 71, a rotating rod 72, an electric push rod II 73, a template 74 and a rotating mechanism. The connection seat 71 is detachably mounted on the upper side of the connection frame 6; a rotating rod 72 is rotatably arranged at intervals on the top of the connection seat 71, and the distribution of the rotating rod 72 on the connection frame 6 is consistent with the distribution of the mounting holes on the circuit board 101. The rotating rod 72 is used to penetrate into the mounting hole of the circuit board 101 to prevent the adhesive from flowing into the mounting hole when the circuit board 101 is sprayed. Two electric push rods II 73 are symmetrically arranged on the left and right sides of the connecting seat 71; the template 74 is connected between the telescopic rods of the electric push rod II 73, and the template 74 is spaced with through holes, and the distribution of the through holes on the template 74 is consistent with the distribution of the rotating rod 72 on the connecting frame 6, so that the rotating rod 72 can pass through the template 74 through the through holes, and the template 74 is used to provide support for the circuit board 101, and the rotating mechanism is used to drive the rotating rod 72 to rotate, so as to prevent the rotating rod 72 from sticking to the glue on the circuit board 101; Two connecting frames 8 are symmetrically arranged at the upper rear part of the workbench 1; the cylinder I9 is ​​connected to the upper side of the connecting frame 8; the connecting plate 10 is connected between the telescopic rods of the two cylinders I9; the limit frame II11 is connected to the inside of the connecting plate 10, and the limit frame II11 is used to surround the side of the circuit board 101 to prevent the glue from flowing into the side of the circuit board 101 when the circuit board 101 is sprayed with glue; the separation mechanism is used to separate the glue stuck in the limit frame II11 to prevent the glue on the circuit board 101 from sticking to the inner wall of the limit frame II11.

[0034] See also Figure 5 and Figure 6As shown, the rotating mechanism includes a servo motor 75 and a gear Ⅰ76; the two servo motors 75 are symmetrically arranged on the front and rear sides of the bottom of the connecting seat 71 of the mold; two rows of gears Ⅰ76 are rotatably arranged inside the connecting seat 71 of the mold, and the two rows of gears Ⅰ76 are distributed front to back, and the two rows of gears Ⅰ76 are V-shaped, and two adjacent gears Ⅰ76 in each row of gears Ⅰ76 are meshed, wherein the rotating rod 72 on the front side is connected to the front row of gears Ⅰ76, and the rotating rod 72 on the rear side is connected to the rear row of gears Ⅰ76, the middle gear Ⅰ76 in the front row is connected to the output shaft of the front servo motor 75, and the middle gear Ⅰ76 in the rear row is connected to the output shaft of the rear servo motor 75, so that the servo motor 75 can drive the gear Ⅰ76 to drive the rotating rod 72 to rotate.

[0035] See also Figure 8 and Fig. 9 As shown, the separation mechanism includes a fixing frame 13, a reduction motor 14, a gear II 15, a tooth block 16, a scraper 17 and a universal ball 18; a slide groove 12 is opened on the top of the limit frame II 11; the fixing frame 13 is slidably arranged on the limit frame II 11, and the fixing frame 13 moves along the slide groove 12; the reduction motor 14 is installed on the upper side of the fixing frame 13; the gear II 15 is connected to the output shaft of the reduction motor 14, so that the reduction motor 14 can drive the gear II 15 to rotate; the tooth blocks 16 are evenly spaced on the upper outer side of the limit frame II 11, and the gear II 15 is meshed with the tooth block 16, and the gear II 15 rotates. The gear II 15 can move on the tooth block 16, thereby driving the fixed frame 13 to move along the slide groove 12; the scraper 17 is connected to the fixed frame 13, and the scraper 17 contacts the inner wall of the limit frame II 11, so that the scraper 17 can move with the fixed frame 13, and the scraper 17 is used to separate the rubber material adhered to the limit frame II 11; the universal ball 18 is arranged at the bottom of the fixed frame 13, and the universal ball 18 contacts the connecting plate 10. When the fixed frame 13 moves along the slide groove 12, the universal ball 18 can roll on the connecting plate 10 and provide support for the fixed frame 13.

[0036] When in use, the electric slide rail 3 drives the limit frame Ⅰ4, the electric push rod Ⅰ5, the connecting frame 6 and the mold to move forward, and then the mold is removed and replaced according to the distribution of the mounting holes on the circuit board 101, so that the distribution of the rotating rod 72 on the mold on the connecting seat 71 is consistent with the distribution of the mounting holes on the circuit board 101, so as to adapt to the circuit board 101 with different distribution of mounting holes. After the mold is replaced, the template 74 is driven to rise and fall by the electric push rod Ⅱ 73 according to the thickness of the circuit board 101, so as to adjust the height of the template 74, so that after the circuit board 101 is placed on the template 74, the height of the side of the circuit board 101 can exceed the limit frame Ⅰ4. After adjusting the height of the template 74, the circuit board 101 is placed on the template 74 (the side of the circuit board 101 that needs to be glued faces up), so that the circuit board 101 is in the limit frame Ⅰ4, and the side of the circuit board 101 is in contact with the inner wall of the limit frame Ⅰ4, so that the limit frame Ⅰ4 can contact the circuit board The plate 101 is limited, and then the electric push rod I5 drives the connecting frame 6, the connecting seat 71, the rotating rod 72, the electric push rod II 73, the template 74 and the circuit board 101 to move upward, and the electric push rod II 73 synchronously drives the template 74 and the circuit board 101 to move downward, so that the template 74 and the circuit board 101 remain in the original position and do not move, and the connecting frame 6, the connecting seat 71, the rotating rod 72 and the electric push rod II 73 move upward relative to the template 74 and the circuit board 101, so that the rotating rod 72 passes through the through hole of the template 74 until the rotating rod 72 passes through the mounting hole in the circuit board 101, and then the servo motor 75 drives the gear I 76 to rotate, thereby driving the rotating rod 72 to rotate, and then the electric slide rail 3 drives the limit frame I 4, the electric push rod I 5, the connecting frame 6 and the mold to move backward and reset, thereby driving the circuit board 101 to move backward, so that the circuit board 101 is directly below the limit frame II 11 (such as Figure 7As shown), the cylinder Ⅰ9 drives the connecting plate 10 and the limit frame Ⅱ11 to move downward until the limit frame Ⅱ11 surrounds the side of the circuit board 101 and makes the inner wall of the limit frame Ⅱ11 contact the side of the circuit board 101, and then controls the three-axis automatic glue coating machine 2 to automatically spray glue on the circuit board 101. During this period, the mounting hole in the circuit board 101 is blocked by the rotating rod 72 to prevent the glue from flowing into the mounting hole in the circuit board 101, and the rotating rod 72 is rotated to prevent the rotating rod 72 from sticking to the glue on the circuit board 101, and the side of the circuit board 101 is blocked by the limit frame Ⅱ11. The edge is surrounded to prevent the glue from flowing into the side of the circuit board 101. After the three-axis automatic glue coating machine 2 completes the glue spraying on the circuit board 101, the gear Ⅱ15 is driven to rotate by the reduction motor 14, so that the gear Ⅱ15 moves on the tooth block 16, so that the fixed frame 13 moves along the slide groove 12 (during the period, the fixed frame 13 will drive the universal ball 18 to roll on the connecting plate 10, so that the universal ball 18 provides support for the fixed frame 13), and then drive the scraper 17 to move along the inner wall of the limit frame Ⅱ11, so that the scraper 17 scrapes off the glue on the circuit board 101 and the inner wall of the limit frame Ⅱ11, thereby preventing The glue on the circuit board 101 adheres to the inner wall of the limit frame II 11. After the glue solidifies, the cylinder I9 drives the connecting plate 10 and the limit frame II 11 to move upward and reset until the inner wall of the limit frame II 11 is separated from the side of the circuit board 101. Then, the electric slide rail 3 drives the limit frame I4, the electric push rod I5, the connecting frame 6 and the mold to move forward again, thereby driving the circuit board 101 that has been glued to move forward. Then, the electric push rod I5 drives the connecting frame 6, the connecting seat 71, the rotating rod 72, the electric push rod II 73, the template 74 and the circuit board 101 to move downward and reset. At the same time, the electric push rod The movable push rod II 73 synchronously drives the template 74 and the circuit board 101 to move upward and reset, so that the template 74 and the circuit board 101 are in the original position and do not move, and the connecting frame 6, the connecting seat 71, the rotating rod 72 and the electric push rod II 73 move downward relative to the template 74 and the circuit board 101, so that the rotating rod 72 leaves the mounting hole in the circuit board 101, and then the rotating rod 72 leaves the through hole of the template 74, and then the circuit board 101 that has been glued is taken out from the template 74, and finally the limit frame I4, the electric push rod I5, the connecting frame 6 and the mold are driven backward and reset by the electric slide rail 3 again.

[0037] See also Fig.10As shown, it also includes a drying mechanism, which includes a ventilation frame 20, an air pump 21 and an air pipe 22; ventilation holes 19 are spaced apart on the left and right sides of the limiting frame Ⅱ11, and the height between the ventilation holes 19 and the bottom of the limiting frame Ⅱ11 is higher than the height of the circuit board 101 to prevent the side of the circuit board 101 from blocking the ventilation holes 19 when the limiting frame Ⅱ11 surrounds the side of the circuit board 101; two ventilation frames 20 are symmetrically arranged on the left and right sides of the limiting frame Ⅱ11, and the limiting frame Ⅱ11 on the left is connected to the ventilation holes 19 on the left, and the limiting frame Ⅱ11 on the right is connected to the ventilation holes 19 on the right; two air pumps 21 are symmetrically arranged on the left and right sides of the front side of the top of the connecting plate 10; the two ends of the air pipe 22 are respectively connected to the air outlets of the ventilation frame 20 and the air pump 21, so that the air pump 21 can draw air into the ventilation frame 20 through the air pipe 22, so that the air in the ventilation frame 20 is discharged from the ventilation holes 19, and then the glue on the circuit board 101 is dried.

[0038] After the three-axis automatic glue coating machine 2 completes glue spraying on the circuit board 101, the air pump 21 can be used to draw air into the ventilation frame 20 through the air pipe 22, so that the air in the ventilation frame 20 is discharged from the ventilation hole 19, thereby air-drying the glue on the circuit board 101, thereby accelerating the solidification of the glue on the circuit board 101 and reducing the waiting time.

[0039] See also Fig.11 As shown, a fixing mechanism is also included, which includes a cylinder II 23 and a clamping plate 24; the cylinder II 23 is arranged on the slider of the electric slide rail 3; the clamping plate 24 is connected to the telescopic rod of the cylinder II 23, and the clamping plate 24 is used to clamp the circuit board 101, so as to fix the circuit board 101.

[0040] When it is necessary to drive the connection frame 6, the connection seat 71, the rotating rod 72, the electric push rod II 73, the template 74 and the circuit board 101 to move upward by the electric push rod I 5, the clamping plate 24 can be driven by the cylinder II 23 to move to the side close to the circuit board 101 until the clamping plate 24 clamps the circuit board 101 to fix the circuit board 101, and then the connection frame 6, the connection seat 71, the rotating rod 72, the electric push rod II 73, the template 74 and the circuit board 101 can be driven by the electric push rod I 5 to move upward. When passing through the mounting hole on the circuit board 101, the circuit board 101 is fixed by the clamping plate 24, which can prevent the rotating rod 72 from lifting the circuit board 101 by friction, thereby avoiding the circuit board 101 from being displaced and affecting the subsequent gluing; subsequently, when the rotating rod 72 leaves the mounting hole on the circuit board 101, the clamping plate 24 can be driven by the cylinder II 23 to move to the side away from the circuit board 101 and reset, so that the clamping plate 24 can loosen the circuit board 101 that has been glued, so that the circuit board 101 that has been glued can be removed from the template 74 later.

[0041] See also Figure 11-13 As shown, it also includes a feeding mechanism, which includes a filling barrel 25, a connecting pipe 26, an electric control valve 27, a fluorescent lamp 28, a camera 29 and a processor 30; the filling barrel 25 is installed on the three-axis automatic glue coating machine 2, and the filling barrel 25 is used to load the fluorescent powder; the two ends of the connecting pipe 26 are respectively connected to the filling barrel 25 and the glue outlet of the three-axis automatic glue coating machine 2, so that the fluorescent powder in the filling barrel 25 can enter the glue outlet of the three-axis automatic glue coating machine 2 through the connecting pipe 26, so that the fluorescent powder is mixed with the glue; the electric control valve 27 is installed on the connecting pipe 26; the fluorescent lamp 28 is installed It is installed on the connecting plate 10, and the fluorescent lamp 28 can make the fluorescent powder in the glue glow by irradiating the glue mixed with fluorescent powder; the camera 29 is set on the fluorescent lamp 28, and the camera 29 is used to take pictures of the glue on the circuit board 101; the processor 30 is installed on the workbench 1, and the camera 29 and the three-axis automatic glue coating machine 2 are electrically connected to the processor 30, and the camera data is transmitted to the processor 30 through the camera 29, and then the processor 30 compares the data, and then the processor 30 will control the three-axis automatic glue coating machine 2 to replenish the area on the circuit board 101 where glue is missing or less applied.

[0042] When in use, the fluorescent powder can be injected into the injection barrel 25, and then when the three-axis automatic glue coating machine 2 is controlled to automatically spray glue on the circuit board 101, the electric control valve 27 can be controlled to open at the same time, so that the fluorescent lamp 28 in the injection barrel 25 enters the glue outlet of the three-axis automatic glue coating machine 2 through the connecting pipe 26, so that the fluorescent powder is mixed with the glue. Then, when the three-axis automatic glue coating machine 2 sprays the glue on the circuit board 101, the fluorescent powder will be mixed in the glue on the circuit board 101. After the three-axis automatic glue coating machine 2 completes the glue spraying on the circuit board 101, the electric control valve 27 is controlled to close; then the electric slide rail 3 drives the limit frame Ⅰ4, the electric push rod Ⅰ5, the connecting frame 6, the mold and the circuit board 101 that has been glued to move forward again. When the glue-coated circuit board 101 is passed under the fluorescent lamp 28 and the camera 29, the fluorescent lamp 28 illuminates the glue mixed with fluorescent powder on the circuit board 101, which can make the fluorescent powder in the glue glow, and the camera 29 takes a picture of the glue on the circuit board 101, and transmits the video data to the processor 30, and then the processor 30 compares the data; if the fluorescent area in the video data is normal, it means that the glue spraying on the circuit board 101 is qualified, and the processor 30 will not process it; if the fluorescent area in the video data is abnormal, it means that the glue spraying on the circuit board 101 is unqualified (there is glue leakage or less glue on the circuit board 101), and the processor 30 will perform a material replenishment process;

[0043] The material replenishment process is as follows: the processor 30 will first control the electric slide 3 to stop driving the limit frame Ⅰ4, the electric push rod Ⅰ5, the connecting frame 6, the mold and the circuit board 101 that has been glued forward, and then the processor 30 will control the electric slide 3 to drive the limit frame Ⅰ4, the electric push rod Ⅰ5, the connecting frame 6, the mold and the circuit board 101 that has been glued backward, and then control the cylinder Ⅰ9 to drive the connecting plate 10 and the limit frame Ⅱ11 to move downward until the limit frame Ⅱ11 surrounds the side of the circuit board 101, and then the processor 30 will control the three-axis automatic glue coating machine 2 to automatically replenish the area on the circuit board 101 that has not been glued or has less glue, and at the same time the processor 30 will control the electric control valve 27 to open to mix the fluorescent powder with the glue, and when the three-axis automatic glue coating machine 2 completes the area on the circuit board 101 that has not been glued or has less glue After the material is added, the processor 30 will control the electric control valve 27 to close, and then the processor 30 will control the reduction motor 14 to drive the gear Ⅱ15 to rotate, so that the scraper 17 will scrape off the glue on the circuit board 101 that is stuck to the inner wall of the limit frame Ⅱ11. At the same time, the processor 30 will control the air pump 21 to draw air into the ventilation frame 20 through the air pipe 22, so that the air in the ventilation frame 20 is discharged from the ventilation hole 19, thereby drying the glue on the circuit board 101. Then the processor 30 will control the cylinder Ⅰ9 to drive the connecting plate 10 and the limit frame Ⅱ11 to move upward and reset. Finally, the processor 30 will control the electric slide rail 3 to drive the limit frame Ⅰ4, the electric push rod Ⅰ5, the connecting frame 6, the mold and the circuit board 101 that has been coated with glue to move forward, so that the circuit board 101 that has completed the material addition passes under the fluorescent lamp 28 and the camera 29 again.

[0044] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board glue coating machine, comprising a workbench (1) and a three-axis automatic glue coating machine (2), characterized in that: The invention also comprises an electric slide rail (3), a limit frame I (4), an electric push rod I (5), a connecting frame (6), a mold, a connecting frame (8), a cylinder I (9), a connecting plate (10), a limit frame II (11) and a separation mechanism. The electric slide rail (3) is symmetrically arranged in the workbench (1). The limit frame I (4) is connected between the sliders of the electric slide rail (3). The electric push rod I (5) is arranged on the slider of the electric slide rail (3). The connecting frame (6) is connected between the telescopic rods of the electric push rod I (5). The connecting frame (6) is provided with a mold. The mold comprises a connecting seat (71), a rotating rod (72), an electric push rod II (73), a template (74) and a rotating mechanism, the connecting seat (71) is installed on the connecting frame (6), a rotating rod (72) is arranged at intervals on the top of the connecting seat (71), the rotating rod (72) is used to penetrate into the mounting hole of the circuit board (101), the connecting seat (71) is symmetrically provided with an electric push rod II (73), the template (74) is connected between the telescopic rods of the electric push rod II (73), the rotating mechanism is used to drive the rotating rod (72) to rotate, the workbench (1) is symmetrically provided with a connecting frame (8), the cylinder I (9) is connected to the connecting frame (8), and the connecting plate (10) is connected to the cylinder I (9) The limit frame II (11) is connected to the connecting plate (10), the limit frame II (11) is used to surround the side of the circuit board (101), and the separation mechanism is used to separate the rubber material adhered to the limit frame II (11); the separation mechanism includes a fixed frame (13), a reduction motor (14), a gear II (15), a tooth block (16) and a scraper (17), the limit frame II (11) is provided with a slide groove (12), the fixed frame (13) is slidably arranged on the limit frame II (11), and the fixed frame (13) moves along the slide groove (12), the reduction motor (14) is installed on the fixed frame (13), The gear II (15) is connected to the output shaft of the reduction motor (14); a tooth block (16) is arranged at intervals outside the limit frame II (11); the gear II (15) meshes with the tooth block (16); a scraper (17) is connected to the fixed frame (13); the scraper (17) contacts the inner wall of the limit frame II (11); and the scraper (17) is used to separate the rubber material adhered to the limit frame II (11); the separation mechanism also includes a universal ball (18); the universal ball (18) is arranged on the fixed frame (13); the universal ball (18) contacts the connecting plate (10); and the universal ball (18) is used to provide support for the fixed frame (13).

2. A circuit board glue coating machine as claimed in claim 1, characterized in that: The rotating mechanism comprises a servo motor (75) and a gear I (76), wherein the two servo motors (75) are symmetrically arranged on a connection base (71) of the mold, and two rows of gears I (76) are rotatably arranged in the connection base (71) of the mold, and two adjacent gears I (76) in each row of gears I (76) are meshed, wherein some of the gears I (76) are connected to the rotating rod (72), and the output shafts of the two servo motors (75) are respectively connected to one of the gears I (76) in the two rows of gears I (76).

3. A circuit board glue coating machine as claimed in claim 2, characterized in that: The invention also comprises an air drying mechanism, which comprises a ventilation frame (20), an air pump (21) and an air pipe (22). Ventilation holes (19) are spaced apart inside the limiting frame II (11). The ventilation frame (20) is symmetrically arranged outside the limiting frame II (11). The ventilation frame (20) is connected to the ventilation holes (19). The air pump (21) is symmetrically arranged on the connecting plate (10). Two ends of the air pipe (22) are respectively connected to the air outlets of the ventilation frame (20) and the air pump (21).

4. A circuit board glue coating machine as claimed in claim 3, characterized in that: It also includes a fixing mechanism, which includes a cylinder II (23) and a clamping plate (24). The cylinder II (23) is arranged on the slider of the electric slide rail (3). The clamping plate (24) is connected to the telescopic rod of the cylinder II (23), and the clamping plate (24) is used to clamp the circuit board (101).

5. A circuit board glue coating machine as claimed in claim 4, characterized in that: The invention also comprises a feeding mechanism, which comprises a feeding barrel (25), a connecting pipe (26), an electric control valve (27) and a fluorescent lamp (28). The feeding barrel (25) is mounted on the three-axis automatic glue coating machine (2), and the feeding barrel (25) is used to charge the fluorescent powder. The two ends of the connecting pipe (26) are respectively connected to the feeding barrel (25) and the glue outlet of the three-axis automatic glue coating machine (2). The electric control valve (27) is mounted on the connecting pipe (26), and the fluorescent lamp (28) is mounted on the connecting plate (10).

6. A circuit board glue coating machine as claimed in claim 5, characterized in that: The feeding mechanism also includes a camera (29) and a processor (30), wherein the camera (29) is arranged on the fluorescent lamp (28), the processor (30) is installed on the workbench (1), and the camera (29) and the three-axis automatic glue coating machine (2) are both electrically connected to the processor (30).

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