Glue gun displacement mechanism for PCB glue dispensing

Abstract

The utility model discloses a glue gun displacement mechanism for PCB (printed circuit board) dispensing, which comprises a glue gun and a displacement mechanism, the displacement mechanism is used for controlling the movement of the glue gun, the displacement mechanism comprises an X-direction displacement mechanism, a Y-direction displacement mechanism and a Z-direction displacement mechanism, the Y-direction displacement mechanism comprises a first mounting plate, a second mounting plate, a first sliding seat and a second sliding seat, two ends of the bottom surfaces of the first mounting plate and the second mounting plate are respectively connected with one end of a vertical column, and the other end of the vertical column is fixed on the bottom plate; two parallel first sliding rails are arranged on the first mounting plate, a first lead screw is arranged between the two sliding rails, the two ends of the first lead screw are rotationally connected into a first fixing base and a second fixing base through bearings respectively, the first fixing base is located at the front end of the first mounting plate, and the second fixing base is located at the rear end of the first mounting plate. A first motor is arranged on the first fixing base, and the output end of the first motor is connected with the first lead screw.

Description

Technical Field

[0001] This utility model is a glue gun displacement mechanism for PCB dispensing. Background Technology

[0002] PCBA (Printed Circuit Board Assembly) is a technology that applies a specially formulated coating to PCB circuit boards and component leads to improve the product's environmental adaptability. Its main purpose is to prevent PCBA boards from being damaged or malfunctioning due to adverse environmental factors such as humidity, corrosion, and contamination.

[0003] With the continuous development of industrial automation technology, dispensing machines are being used more and more widely. In fields such as electronic equipment, automotive parts, and medical devices, dispensing has become an indispensable manufacturing technology. Traditional conformal coating processes generally use manual brushing and spraying methods. Moreover, with the widespread adoption of intelligent control, many production processes are now controlled intelligently. However, existing automated dispensing gun devices have relatively complex overall structures and occupy a large amount of space. In particular, most of the displacement mechanisms require motors or lead screws, which can easily lead to structural redundancy. Therefore, it is necessary to rationally plan the structure to reduce the space occupied. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a glue gun displacement mechanism for PCB dispensing.

[0005] A glue gun displacement mechanism for PCB dispensing includes a glue gun and a displacement mechanism. The displacement mechanism is used to control the movement of the glue gun. The displacement mechanism includes an X-axis displacement mechanism, a Y-axis displacement mechanism, and a Z-axis displacement mechanism. The Y-axis displacement mechanism includes a first mounting plate, a second mounting plate, a first slide, and a second slide. The bottom ends of the first mounting plate and the second mounting plate are respectively connected to one end of a column, and the other end of the column is fixed to the base plate.

[0006] The first mounting plate is provided with two parallel first slide rails, and a first lead screw is provided between the two slide rails. The two ends of the first lead screw are rotatably connected to the first fixed seat and the second fixed seat through bearings, respectively. The first fixed seat is located at the front end of the first mounting plate, and the second fixed seat is located at the rear end of the first mounting plate. The first fixed seat is provided with a first motor, and the output end of the first motor is connected to the first lead screw.

[0007] Two first sliders are provided below the first slide block. The first sliders are slidably engaged with the first slide rail. A first sliding sleeve is slidably sleeved on the first lead screw. The first sliding sleeve is fixedly connected to the first slide block.

[0008] The second mounting plate is provided with a second slide rail parallel to the first slide rail, and a second slider is provided below the second slide block. The second slider slides in sliding engagement with the second slide rail. The second mounting plate is connected above the first slide block and the second slide block. The second mounting plate is used to install the X-axis displacement mechanism.

[0009] One end of the first lead screw passes through the first fixed base and is connected to the second synchronous gear. The output end of the first motor is connected to the first synchronous gear. The first synchronous gear and the second synchronous gear are connected by a synchronous belt.

[0010] Furthermore, the X-axis displacement mechanism includes two third slide rails, a second lead screw, a third slide block, and a second motor. The two third slide rails are arranged parallel to each other on the third mounting plate. The second lead screw is located between the two third slide rails. The two ends of the second lead screw are rotatably connected to the third fixed seat and the fourth fixed seat through bearings, respectively. The third fixed seat and the fourth fixed seat are located at the two ends of the second mounting plate. The second motor is mounted on the third fixed seat, and its output end is connected to one end of the second lead screw. A second slide block is slidably sleeved on the second lead screw.

[0011] Two third sliders are provided below the third slide block. The third sliders slide in cooperation with the third slide rail. The third slide block is fixedly connected to the second slide sleeve. A fourth mounting plate is provided above the third slide block. The fourth mounting plate is used to install the Z-axis displacement mechanism.

[0012] Furthermore, photoelectric sensors are provided at both ends of the third slide rail. These photoelectric sensors are used to sense the third slide block and send signals to control the second motor.

[0013] Furthermore, the Z-axis displacement mechanism includes a cylinder, a fifth fixed seat, a sixth fixed seat, and a fourth slide. The fifth fixed seat is located at the upper end of the fourth mounting plate, and the sixth fixed seat is located at the lower end of the fourth mounting plate. Two parallel sliding rods are provided between the fifth fixed seat and the sixth fixed seat. The fourth slide is slidably connected to the two sliding rods. The cylinder is mounted on the fifth fixed seat, and its floating joint is connected to the fourth slide. The fourth slide is provided with a mounting seat, and a glue gun is mounted on the mounting seat.

[0014] Furthermore, a cleaning assembly is provided on the inner side of the first mounting plate or the second mounting plate. The cleaning assembly includes a fixing plate. One side of the fixing plate is provided with a flange. The flange is fixedly connected to the first mounting plate or the second mounting plate by bolts. The surface of the fixing plate is provided with at least one through hole. A cleaning bucket is inserted through the through hole. The opening of the cleaning bucket is provided with a baffle that extends outward and is arranged along the circumference of the cleaning bucket. The lower end face of the baffle is connected to the end face near the opening of the through hole of the fixing plate.

[0015] Furthermore, both the X-axis displacement mechanism and the Y-axis displacement mechanism are equipped with protective covers.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0017] In the control of both the X-axis and Y-axis displacement mechanisms, the lead screws are positioned between the tracks rather than above them, thereby reducing the space occupied by the structure in the Z-axis. At the same time, the use of a synchronous gear structure allows the first motor to be located to the side of the first lead screw, rather than in the direction of its extension, reducing the space occupied in the Y-axis and increasing the space occupied in the X-axis. This reduces the difference between the lengths in the X and Y axes, making the overall structure more cubic in shape, and resulting in a more reasonable proportion of the overall structure in the X, Y, and Z directions.

[0018] This mechanism achieves precise movement of the glue gun in three-dimensional space through X-axis, Y-axis, and Z-axis displacement mechanisms. This design allows the glue gun to dispensing glue onto the PCB along a predetermined trajectory, improving the accuracy and efficiency of dispensing.

[0019] The Y-axis displacement mechanism employs a combination design of a first mounting plate, a second mounting plate, a first slide block, and a second slide block, fixed to the base plate by a column to ensure the stability of the entire mechanism. Simultaneously, the sliding engagement of the slide rail and the slider, as well as the sliding connection of the lead screw and the sliding sleeve, further enhance the mechanism's stability and durability.

[0020] Both the Y-axis and X-axis displacement mechanisms employ a motor-driven lead screw design, achieving precise displacement control through the transmission of synchronous gears and belts. This design not only improves displacement accuracy but also reduces noise and vibration.

[0021] The photoelectric sensor in the X-axis displacement mechanism can sense the position of the third slide in real time, thereby accurately controlling the operation of the second motor and avoiding errors and collisions during the displacement process. The Z-axis displacement mechanism adopts a cylinder-driven design to slide the fourth slide on the slide rod, which allows the height of the glue gun to be flexibly adjusted to meet the dispensing needs of different PCBs.

[0022] The cleaning assembly installed inside the first or second mounting plate can easily clean residual glue from the glue gun and the transmission path, ensuring the quality of dispensing and the cleanliness of the equipment. The protective covers on the X-axis and Y-axis displacement mechanisms not only protect the internal transmission components from dust and impurities but also improve the safety and aesthetics of the equipment.

[0023] The entire mechanism adopts a modular design, which allows for easy disassembly and replacement of various components, reducing the difficulty and cost of maintenance and upkeep. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the flipping device;

[0025] Figure 2 This is a schematic diagram of the flipping mechanism;

[0026] Figure 3 This is a schematic diagram of the third regulating mechanism;

[0027] Figure 4 This is a schematic diagram of the transmission mechanism;

[0028] Figure 5 This is a schematic diagram of the combined structure of the conveyor plate and the stop block;

[0029] Figure 6 This is a schematic diagram of the translation mechanism with a protective cover;

[0030] Figure 7 This is a schematic diagram of a glue gun displacement mechanism used for PCB dispensing;

[0031] Figure 8 This is a schematic diagram of a Y-axis displacement mechanism;

[0032] Figure 9 This is a schematic diagram of the X-axis displacement mechanism;

[0033] Figure 10 This is the front view of the Z-axis displacement mechanism;

[0034] Figure 11 This is a side view of the Z-axis displacement mechanism. Detailed Implementation

[0035] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0036] like Figure 1-11As shown, the components include: frame 1, tilting mechanism 2, tilting motor 21, tilting timing belt 22, tilting wheel 23, tilting component 24, third adjustment mechanism 3, first connecting plate 31, second connecting plate 32, width adjustment shaft 33, moving bearing 331, screw block 332, moving plate 34, guide assembly 35, guide rod 351, guide slider 352, conveying mechanism 4, conveying motor 41, timing belt 42, drive shaft 43, feeding assembly 44, first feeding assembly 5, mounting plate 51, drive wheel 52, first drive belt 53, first driving wheel 54, first driven wheel 55, second driving wheel 56, second driven wheel 57, second drive belt 58, conveying plate 59, conveying channel 591, second feeding assembly 6, stop block 7, and soft buffer layer 71. X-axis displacement mechanism 8, Y-axis displacement mechanism 9, Z-axis displacement mechanism 10, cleaning assembly 11, glue gun 12, column 13, first mounting plate 14, second mounting plate 15, first slide rail 16, first lead screw 17, first motor 18, first synchronous gear 19, second synchronous gear 20, second slide rail 21, second slider 22, second slide block 23, third mounting plate 24, third slide rail 25, second lead screw 26, second motor 27, first fixed seat 28, second fixed seat 29, first slide block 30, first slider 31, first sliding sleeve 32, third slide block 33, second sliding sleeve 34, third fixed seat 35, fourth fixed seat 36, fifth fixed seat 37, slide rod 38, fourth slide block 39, mounting base 40, sixth fixed seat 41.

[0037] A glue gun displacement mechanism for PCB dispensing includes a glue gun 12 and a displacement mechanism. The displacement mechanism is used to control the movement of the glue gun 12. The displacement mechanism includes an X-axis displacement mechanism 8, a Y-axis displacement mechanism 9, and a Z-axis displacement mechanism 10. The Y-axis displacement mechanism 9 includes a first mounting plate 14, a second mounting plate 15, a first slide 30, and a second slide 23. The bottom ends of the first mounting plate 14 and the second mounting plate 15 are respectively connected to one end of a column 13, and the other end of the column 13 is fixed to the base plate.

[0038] The first mounting plate 14 is provided with two parallel first slide rails 16, and a first lead screw 17 is provided between the two slide rails. The two ends of the first lead screw 17 are rotatably connected to the first fixed seat 28 and the second fixed seat 29 respectively through bearings. The first fixed seat 28 is located at the front end of the first mounting plate 14, and the second fixed seat 29 is located at the rear end of the first mounting plate 14. The first fixed seat 28 is provided with a first motor 18, and the output end of the first motor 18 is connected to the first lead screw 17.

[0039] Two first sliders 31 are provided below the first slide block 30. The first sliders 31 are slidably engaged with the first slide rail 16. A first sliding sleeve 32 is slidably sleeved on the first lead screw 17. The first sliding sleeve 32 is fixedly connected to the first slide block 30.

[0040] The second mounting plate 15 is provided with a second slide rail 21 parallel to the first slide rail 16. The second slide block 22 is provided below the second slide block 23. The second slide block 22 is slidably engaged with the second slide rail 21. The first slide block 30 and the second slide block 23 are connected to the second mounting plate 15 above the second mounting plate 15. The second mounting plate 15 is used to install the X-direction displacement mechanism 8.

[0041] One end of the first lead screw 17 passes through the first fixed base 28 and is connected to the second synchronous gear 20. The output end of the first motor 18 is connected to the first synchronous gear 19. The first synchronous gear 19 and the second synchronous gear 20 are connected by a synchronous belt.

[0042] In this example, the X-direction displacement mechanism 8 includes two third slide rails 25, a second lead screw 26, a third slide block 3339, and a second motor 27. The two third slide rails 25 are arranged in parallel on the third mounting plate 24. The second lead screw 26 is located between the two third slide rails 25. The two ends of the second lead screw 26 are rotatably connected to the third fixed seat 35 and the fourth fixed seat 36 respectively through bearings. The third fixed seat 35 and the fourth fixed seat 36 are located at the two ends of the second mounting plate 15 respectively. The second motor 27 is mounted on the third fixed seat 35, and its output end is connected to one end of the second lead screw 26. A second slide block 34 is slidably sleeved on the second lead screw 26.

[0043] Two third sliders are provided below the third slide block 3339. The third sliders are slidably engaged with the third slide rail 25. The third slide block 3339 is fixedly connected to the second slide sleeve 34. A fourth mounting plate is provided above the third slide block 3339. The fourth mounting plate is used to install the Z-axis displacement mechanism 10.

[0044] In this example, photoelectric sensors are provided at both ends of the third slide rail 25. The photoelectric sensors are used to sense the third slide block 3339 and send signals to control the second motor 27 to work.

[0045] In this example, the Z-axis displacement mechanism 10 includes a cylinder, a fifth fixed seat 37, a sixth fixed seat 41, and a fourth slide 39. The fifth fixed seat 37 is located at the upper end of the fourth mounting plate, and the sixth fixed seat 41 is located at the lower end of the fourth mounting plate. Two parallel slide rods 38 are provided between the fifth fixed seat 37 and the sixth fixed seat 41. The fourth slide 39 is slidably connected to the two slide rods 38. The cylinder is mounted on the fifth fixed seat 37, and its floating joint is connected to the fourth slide 39. A mounting seat 40 is provided on the fourth slide 39, and a glue gun 12 is mounted on the mounting seat 40.

[0046] In this embodiment, a cleaning assembly 11 is provided on the inner side of the first mounting plate 14 or the second mounting plate 15. The cleaning assembly 11 includes a fixing plate. A flange is provided on one side of the fixing plate. The flange is fixedly connected to the first mounting plate 14 or the second mounting plate 15 by bolts. At least one through hole is provided on the surface of the fixing plate. A cleaning bucket is inserted through the through hole. A baffle extending outward and arranged along the circumference of the cleaning bucket is provided at the opening of the bucket. The lower end face of the baffle is connected to the end face near the opening of the through hole of the fixing plate.

[0047] In this example, both the X-axis displacement mechanism 8 and the Y-axis displacement mechanism 9 are equipped with protective covers.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A glue gun displacement mechanism for PCB dispensing, characterized in that, It includes a glue gun and a displacement mechanism. The displacement mechanism is used to control the movement of the glue gun. The displacement mechanism includes an X-axis displacement mechanism, a Y-axis displacement mechanism, and a Z-axis displacement mechanism. The Y-axis displacement mechanism includes a first mounting plate, a second mounting plate, a first slide, and a second slide. The bottom ends of the first mounting plate and the second mounting plate are respectively connected to one end of a column, and the other end of the column is fixed to the base plate. The first mounting plate is provided with two parallel first slide rails, and a first lead screw is provided between the two slide rails. The two ends of the first lead screw are rotatably connected to a first fixed seat and a second fixed seat through bearings, respectively. The first fixed seat is located at the front end of the first mounting plate, and the second fixed seat is located at the rear end of the first mounting plate. A first motor is provided on the first fixed seat, and the output end of the first motor is connected to the first lead screw. Two first sliders are provided below the first slide block. The first sliders are slidably engaged with the first slide rail. A first sliding sleeve is slidably sleeved on the first lead screw. The first sliding sleeve is fixedly connected to the first slide block. The second mounting plate is provided with a second slide rail parallel to the first slide rail, and a second slider is provided below the second slide block. The second slider slides in sliding engagement with the second slide rail. The second mounting plate is connected above the first slide block and the second slide block. The second mounting plate is used to install the X-axis displacement mechanism. One end of the first lead screw passes through the first fixed base and is connected to the second synchronous gear. The output end of the first motor is connected to the first synchronous gear. The first synchronous gear and the second synchronous gear are connected by a synchronous belt.

2. The glue gun displacement mechanism for PCB dispensing according to claim 1, characterized in that, The X-axis displacement mechanism includes two third slide rails, a second lead screw, a third slide block, and a second motor. The two third slide rails are arranged parallel to each other on the third mounting plate. The second lead screw is located between the two third slide rails. The two ends of the second lead screw are rotatably connected to a third fixed seat and a fourth fixed seat through bearings. The third fixed seat and the fourth fixed seat are located at both ends of the second mounting plate. The second motor is mounted on the third fixed seat, and its output end is connected to one end of the second lead screw. A second slide block is slidably sleeved on the second lead screw. The third slide block is provided with two third sliders below it. The third sliders slide in cooperation with the third slide rail. The third slide block is fixedly connected to the second slide sleeve. The fourth mounting plate is provided above the third slide block. The fourth mounting plate is used to install the Z-axis displacement mechanism.

3. The glue gun displacement mechanism for PCB dispensing according to claim 2, characterized in that, The third slide rail is equipped with photoelectric sensors at both ends. The photoelectric sensors are used to sense the third slide block and send signals to control the second motor to work.

4. A glue gun displacement mechanism for PCB dispensing according to claim 3, characterized in that, The Z-axis displacement mechanism includes a cylinder, a fifth fixed seat, a sixth fixed seat, and a fourth slide. The fifth fixed seat is located at the upper end of the fourth mounting plate, and the sixth fixed seat is located at the lower end of the fourth mounting plate. Two parallel sliding rods are provided between the fifth and sixth fixed seats. The fourth slide is slidably connected to the two sliding rods. The cylinder is mounted on the fifth fixed seat, and its floating joint is connected to the fourth slide. A mounting seat is provided on the fourth slide, and a glue gun is mounted on the mounting seat.

5. A glue gun displacement mechanism for PCB dispensing according to claim 1, characterized in that, A cleaning assembly is provided on the inner side of the first mounting plate or the second mounting plate. The cleaning assembly includes a fixing plate. One side of the fixing plate is provided with a flange. The flange is fixedly connected to the first mounting plate or the second mounting plate by bolts. The surface of the fixing plate is provided with at least one through hole. A cleaning bucket is inserted through the through hole. The opening of the cleaning bucket is provided with a baffle that extends outward and is arranged along the circumference of the cleaning bucket. The lower end face of the baffle is connected to the end face near the opening of the through hole of the fixing plate.

6. A glue gun displacement mechanism for PCB dispensing according to claim 1, characterized in that, Both the X-axis displacement mechanism and the Y-axis displacement mechanism are equipped with protective covers.

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