PCB patch dispensing equipment

Abstract

The utility model discloses PCB (printed circuit board) patch dispensing equipment, which belongs to the technical field of dispensing equipment and comprises a worktable, a placement component is arranged at the upper end of the worktable, an electric push rod is arranged on the side surface of the placement component, a U-shaped frame is arranged on one side of the upper end of the worktable, a hydraulic cylinder is arranged in the middle of the upper end of the U-shaped frame, and a dispensing head is arranged in the U-shaped frame. According to the utility model, the clamping plate and the I-shaped pressing plate are arranged to fix the printed circuit boards on the placing plates, and then the electric push rod drives the whole placing assembly to move left and right, so that the printed circuit boards on the two rows of placing plates can be alternately aligned with the dispensing head, and the printed circuit boards can be alternately fed and discharged; the dispensing operation does not need to be stopped, the working efficiency of dispensing is improved, meanwhile, the output end of the servo motor drives the lead screw to rotate, the lead screw can enable the U-shaped frame to do reciprocating rectilinear motion, the dispensing head is driven to move for dispensing, and the dispensing effect is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of dispensing equipment technology, specifically relating to a PCB patch dispensing device. Background Technology

[0002] PCB surface mount technology (SMT) adhesive dispensing refers to the process of applying specialized adhesive to pre-defined locations on a PCB using dispensing equipment during SMT manufacturing. This adhesive is used to secure surface mount components, which are then soldered to the PCB via wave soldering. This technology not only improves assembly efficiency but also ensures the stability and reliability of electronic products.

[0003] Chinese Patent Publication No. CN220861876U discloses a dispensing device for PCB assembly production, relating to the field of dispensing equipment technology, and particularly a dispensing device for PCB assembly production. The device includes an adjustment assembly with two support plates at the top. The bottoms of the two support plates are connected to the adjustment assembly. A groove is formed on the relatively close side of each of the two support plates. A sliding groove is formed at equal intervals on the top of each of the two support plates. Multiple positioning components and baffles are provided above the base. Two sliding grooves are symmetrically formed on the outer walls of each of the baffles. Both ends of the multiple positioning components pass through the sliding grooves and extend to their outer sides. Both ends of the multiple baffles are connected to the support plates. Two connecting blocks are symmetrically fixed on the outer side of each of the two support plates. A screw is rotatably connected between the two connecting blocks on the same side. This invention can simultaneously install and disassemble multiple printed circuit boards, thereby improving the dispensing efficiency of printed circuit boards.

[0004] The aforementioned patent requires the unified installation and disassembly of multiple printed circuit boards, and the dispensing operation needs to be stopped during installation and disassembly, which reduces the efficiency of dispensing. At the same time, the original device requires the mounting base to be moved constantly, which can easily cause the printed circuit boards to shift and affect the dispensing effect. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a PCB mounting and dispensing device that allows for alternating loading and unloading without interrupting the dispensing operation, and minimizes the risk of PCB displacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PCB mounting and dispensing device, including a worktable, a placement component at the upper end of the worktable, an electric push rod on the side of the placement component, a U-shaped frame on one side of the upper end of the worktable, a hydraulic cylinder in the middle of the upper end of the U-shaped frame, a dispensing head inside the U-shaped frame, and a moving component at the lower end of the U-shaped frame.

[0007] Preferably, the placement assembly includes a first slide groove, a first slider, a placement frame, a placement plate, a rectangular plate, a clamping plate, an I-shaped pressure plate, a T-shaped slide groove, and positioning holes. The upper end of the worktable has two symmetrical first slide grooves. A first slider is slidably connected inside the first slide groove. A placement frame is fixedly connected to the upper end of the first slider. Two rows of symmetrically arranged, linearly distributed placement plates are fixedly connected to the upper end of the placement frame. A rectangular plate is fixedly connected to one end of each placement plate. Two symmetrical clamping plates are provided on the side of the rectangular plate. A T-shaped slide groove is formed in the middle of the opposite sides of the two clamping plates. The short side of an I-shaped pressure plate is slidably connected inside the T-shaped slide groove. Several evenly distributed positioning holes communicating with the outside are formed on the inner wall of the T-shaped slide groove along the vertical direction.

[0008] Preferably, the rectangular plate has a second sliding groove on its side. Two symmetrical second sliders are slidably connected inside the second sliding groove. The outer ends of the second sliders are fixedly connected to one end of the clamping plate. A bidirectional threaded screw is provided inside the second sliding groove. The bidirectional threaded screw passes through the second slider and is threadedly connected to its interior. Both ends of the bidirectional threaded screw are rotatably connected to the inner wall of the second sliding groove through bearings. One end of the bidirectional threaded screw extends outward to the outer side of the rectangular plate and is fixedly connected to a handwheel.

[0009] Preferably, the short side of the I-shaped pressure plate is provided with a circular groove, and a spring is fixedly connected to the inner bottom surface of the circular groove. A positioning post is fixedly connected to the end of the spring away from the inner bottom surface of the circular groove. The size of the positioning post is adapted to the positioning hole, and the end of the positioning post away from the spring is rounded.

[0010] Preferably, a mounting plate is fixedly connected to the middle of one side of the upper end of the workbench, and an electric push rod is fixedly installed on the side of the mounting plate.

[0011] Preferably, the moving component includes a third slide groove, a third slider, a lead screw, and a servo motor. Symmetrical third slide grooves are provided on both sides of the worktable. A third slider is slidably connected inside the third slide groove. The third slider is fixedly connected to the lower end of the U-shaped frame. A lead screw is installed inside the third slide groove on the left side of the worktable. The lead screw passes through the third slider and is threadedly connected to its interior. Both ends of the lead screw are rotatably connected to the inner wall of the third slide groove via bearings. A servo motor is fixedly installed at one end of the worktable. One end of the lead screw extends outward to the outside of the worktable and is fixedly connected to the output end of the servo motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model fixes the printed circuit board on the placement plate by setting a clamping plate and an I-shaped pressure plate, and then drives the entire placement assembly to move left and right by an electric push rod, so that the printed circuit boards on the two rows of placement plates are alternately aligned with the dispensing head. This allows the dispensing operation to be completed without stopping when installing and removing the printed circuit board, thus improving the efficiency of dispensing.

[0014] 2. This utility model uses a servo motor. The output of the servo motor drives the lead screw to rotate. The rotation of the lead screw drives the threaded third slider to reciprocate along the third slide groove. The third slider drives the U-shaped frame to reciprocate linearly. The U-shaped frame drives the dispensing head below to reciprocate, dispensing glue onto the printed circuit board below. This avoids displacement of the printed circuit board, which would affect the dispensing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model;

[0017] Figure 3 This utility model Figure 1 A magnified schematic diagram of the placement components in the diagram;

[0018] Figure 4 This is a schematic diagram of the rectangular plate of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the I-shaped pressure plate of this utility model.

[0020] In the diagram: 1. Workbench; 2. Placement component; 21. First slide rail; 22. First slider; 23. Placement frame; 24. Placement plate; 25. Rectangular plate; 251. Second slide rail; 252. Second slider; 253. Bidirectional threaded screw; 254. Handwheel; 26. Clamping plate; 27. I-shaped pressure plate; 271. Circular groove; 272. Spring; 273. Positioning post; 28. T-shaped slide rail; 29. ​​Positioning hole; 3. U-shaped frame; 4. Hydraulic cylinder; 5. Dispensing head; 6. Moving component; 61. Third slide rail; 62. Third slider; 63. Screw; 64. Servo motor; 7. Electric push rod; 8. Mounting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-5 The present invention provides the following technical solution: a PCB mounting and dispensing device, including a workbench 1, a placement component 2 is provided at the upper end of the workbench 1, an electric push rod 7 is provided on the side of the placement component 2, a U-shaped frame 3 is provided on one side of the upper end of the workbench 1, a hydraulic cylinder 4 is provided in the middle of the upper end of the U-shaped frame 3, a dispensing head 5 is provided inside the U-shaped frame 3, and a moving component 6 is provided at the lower end of the U-shaped frame 3.

[0024] Specifically, the placement component 2 includes a first slide groove 21, a first slider 22, a placement frame 23, a placement plate 24, a rectangular plate 25, a clamping plate 26, an I-shaped pressure plate 27, a T-shaped slide groove 28, and positioning holes 29. The upper end of the worktable 1 has two symmetrical first slide grooves 21. The first slider 22 is slidably connected inside the first slide groove 21. The upper end of the first slider 22 is fixedly connected to the placement frame 23. The upper end of the placement frame 23 is fixedly connected to two rows of symmetrical and linearly distributed placement plates 24. One end of the placement plate 24 is fixedly connected to a rectangular plate 25. The side of the rectangular plate 25 is provided with two symmetrical clamping plates 26. A T-shaped slide groove 28 is opened in the middle of the opposite side of the two clamping plates 26. The short side of the I-shaped pressure plate 27 is slidably connected inside the T-shaped slide groove 28. The inner wall of the T-shaped slide groove 28 is provided with several evenly distributed positioning holes 29 that communicate with the outside along the vertical direction.

[0025] By adopting the above technical solution, the printed circuit board is placed on the placement plate 24, and then the printed circuit board is clamped by two clamping plates 26 that move synchronously in opposite directions. Then, the I-shaped pressure plate 27 moves downward to press the edge of the printed circuit board, thereby fixing the printed circuit board stably on the placement plate 24.

[0026] Specifically, a second slide groove 251 is provided on the side of the rectangular plate 25. Two mutually symmetrical second sliders 252 are slidably connected inside the second slide groove 251. The outer ends of the second sliders 252 are fixedly connected to one end of the clamping plate 26. A bidirectional threaded screw 253 is provided inside the second slide groove 251. The bidirectional threaded screw 253 passes through the second sliders 252 and is threadedly connected to them. The two ends of the bidirectional threaded screw 253 are rotatably connected to the inner wall of the second slide groove 251 through bearings. One end of the bidirectional threaded screw 253 extends outward to the outer side of the rectangular plate 25 and is fixedly connected to a handwheel 254.

[0027] By adopting the above technical solution, rotating the handwheel 254 causes the bidirectional threaded screw 253 to rotate, which in turn causes the two second sliders 252 to move synchronously in opposite directions. The two second sliders 252 can then drive the two clamping plates 26 to move synchronously in opposite directions, thereby clamping and fixing the printed circuit board.

[0028] Specifically, a circular groove 271 is provided on the short side of the I-shaped pressure plate 27. A spring 272 is fixedly connected to the inner bottom surface of the circular groove 271. A positioning post 273 is fixedly connected to the end of the spring 272 away from the inner bottom surface of the circular groove 271. The size of the positioning post 273 is adapted to the positioning hole 29. The end of the positioning post 273 away from the spring 272 is rounded.

[0029] By adopting the above technical solution, the positioning post 273 can be manually retracted into the circular groove 271 and the spring 272 can be squeezed. At this time, the I-shaped pressure plate 27 can move downward. When the I-shaped pressure plate 27 contacts the upper end of the printed circuit board, the compression of the positioning post 273 can be stopped. At this time, one end of the positioning post 273 will extend out of the corresponding positioning hole 29 under the action of the spring force of the spring 272, thereby fixing the I-shaped pressure plate 27 and ensuring the fixation of the printed circuit board.

[0030] Specifically, a mounting plate 8 is fixedly connected to the middle of one side of the upper end of the workbench 1, and an electric push rod 7 is fixedly installed on the side of the mounting plate 8.

[0031] By adopting the above technical solution, the mounting plate 8 can fix the electric push rod 7, thereby enabling the electric push rod 7 to move the entire placement assembly 2 left and right, making it easier to align the printed circuit board with the dispensing head 5, thus ensuring the dispensing effect.

[0032] In this embodiment, during use: First, place the printed circuit board on both rows of placement plates 24 on the placement frame 23. Then, rotate the handwheel 254 to drive the bidirectional threaded screw 253 to rotate. The rotation of the bidirectional threaded screw 253 drives the two second sliders 252 to move synchronously in opposite directions. The two second sliders 252 can drive the two clamping plates 26 to move synchronously in opposite directions, thereby clamping and fixing the printed circuit board. Next, manually retract the positioning post 273 into the circular groove 271 and compress the spring 272. At this time, the I-shaped pressure plate 27 can move downward. When plate 27 contacts the upper end of the printed circuit board, the compression of positioning post 273 can be stopped. At this time, one end of positioning post 273 will be inserted into the corresponding positioning hole 29 under the action of spring 272, thereby fixing I-shaped pressure plate 27 and ensuring the fixation of printed circuit board. Then, the electric push rod 7 is activated, which drives the entire placement assembly 2 to move left and right, so that the printed circuit boards on the two rows of placement plates 24 can be alternately aligned with dispensing head 5. This allows the dispensing operation to be stopped when installing and removing printed circuit boards, improving the dispensing efficiency.

[0033] Example 2

[0034] The difference between this embodiment and embodiment 1 is that, specifically, the moving component 6 includes a third slide groove 61, a third slider 62, a lead screw 63, and a servo motor 64. The worktable 1 has symmetrical third slide grooves 61 on both sides. The third slider 62 is slidably connected inside the third slide groove 61. The third slider 62 is fixedly connected to the lower end of the U-shaped frame 3. The lead screw 63 is installed inside the third slide groove 61 on the left side of the worktable 1. The lead screw 63 passes through the third slider 62 and is threadedly connected to it. The two ends of the lead screw 63 are rotatably connected to the inner wall of the third slide groove 61 through bearings. The servo motor 64 is fixedly installed at one end of the worktable 1. One end of the lead screw 63 extends outward to the outside of the worktable 1 and is fixedly connected to the output end of the servo motor 64.

[0035] By adopting the above technical solution, the servo motor 64 is started, and the output end of the servo motor 64 drives the lead screw 63 to rotate. The rotation of the lead screw 63 drives the threaded third slider 62 to reciprocate along the third slide groove 61. The third slider 62 drives the U-shaped frame 3 to reciprocate linearly. The U-shaped frame 3 drives the dispensing head 5 below to reciprocate, dispensing glue onto the printed circuit board below, thus avoiding displacement of the printed circuit board and affecting the dispensing effect.

[0036] In this embodiment, when in use: the servo motor 64 is started, and the output end of the servo motor 64 drives the lead screw 63 to rotate. The rotation of the lead screw 63 drives the threaded third slider 62 to reciprocate along the third slide groove 61. The third slider 62 drives the U-shaped frame 3 to reciprocate linearly. The U-shaped frame 3 drives the dispensing head 5 below to reciprocate, dispensing glue onto the printed circuit board below, thus avoiding displacement of the printed circuit board and affecting the dispensing effect.

[0037] The structure and working principle of the U-shaped frame 3, hydraulic cylinder 4 and dispensing head 5 in this utility model have been disclosed in a dispensing equipment for PCB assembly production disclosed in Chinese Patent Publication No. CN220861876U. Its working principle is that when the hydraulic cylinder 4 is started, the output end of the hydraulic cylinder 4 can push the dispensing head 5 to move downward, adjust the distance between it and the printed circuit board, and dispense glue onto the printed circuit board.

[0038] The working principle and usage process of this utility model are as follows: When dispensing adhesive, firstly, place the printed circuit board on both rows of placement plates 24 on the placement frame 23. Then, rotate the handwheel 254 to drive the bidirectional threaded screw 253 to rotate. The rotation of the bidirectional threaded screw 253 drives the two second sliders 252 to move synchronously in opposite directions. The two second sliders 252 can drive the two clamping plates 26 to move synchronously in opposite directions, thereby clamping and fixing the printed circuit board. Next, manually retract the positioning post 273 into the circular groove 271 and compress the spring 272. At this time, the I-shaped pressure plate 27 can move downward. When the I-shaped pressure plate 27 contacts the upper end of the printed circuit board, the positioning post 273 can no longer be compressed. At this time, one end of the positioning post 273 will be inserted into the corresponding positioning under the action of the spring force of the spring 272. The hole 29 is used to fix the I-shaped pressure plate 27, ensuring the fixation of the printed circuit board. Then, the electric push rod 7 is activated, which drives the entire placement assembly 2 to move left and right, so that the printed circuit boards on the two rows of placement plates 24 can be alternately aligned with the dispensing head 5. This allows the dispensing operation to be completed without stopping when installing and removing the printed circuit board, improving the dispensing efficiency. Next, the servo motor 64 is activated, and the output end of the servo motor 64 drives the lead screw 63 to rotate. The rotation of the lead screw 63 drives the threaded third slider 62 to reciprocate along the third slide groove 61. The third slider 62 drives the U-shaped frame 3 to reciprocate linearly. The U-shaped frame 3 drives the dispensing head 5 below to reciprocate, dispensing glue onto the printed circuit board below, avoiding displacement of the printed circuit board and affecting the dispensing effect.

[0039] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB mounting and dispensing device, comprising a worktable (1), a U-shaped frame (3) provided on one side of the upper end of the worktable (1), a hydraulic cylinder (4) provided in the middle of the upper end of the U-shaped frame (3), and a dispensing head (5) provided inside the U-shaped frame (3), characterized in that: The upper end of the workbench (1) is provided with a placement component (2), the side of the placement component (2) is provided with an electric push rod (7), and the lower end of the U-shaped frame (3) is provided with a moving component (6).

2. The PCB mounting and dispensing equipment according to claim 1, characterized in that: The placement assembly (2) includes a first slide groove (21), a first slider (22), a placement frame (23), a placement plate (24), a rectangular plate (25), a clamping plate (26), an I-shaped pressure plate (27), a T-shaped slide groove (28), and a positioning hole (29). The upper end of the worktable (1) has two symmetrical first slide grooves (21). The first slider (22) is slidably connected inside the first slide groove (21). The upper end of the first slider (22) is fixedly connected to the placement frame (23). The upper end of the plate is fixedly connected to two rows of symmetrical and linearly distributed placement plates (24). One end of the placement plate (24) is fixedly connected to a rectangular plate (25). The side of the rectangular plate (25) is provided with two symmetrical clamping plates (26). A T-shaped groove (28) is opened in the middle of the opposite side of the two clamping plates (26). The short side of the I-shaped pressure plate (27) is slidably connected inside the T-shaped groove (28). The inner wall of the T-shaped groove (28) is provided with several evenly distributed positioning holes (29) that communicate with the outside along the vertical direction.

3. The PCB mounting and dispensing equipment according to claim 2, characterized in that: The rectangular plate (25) has a second slide groove (251) on its side. Two symmetrical second sliders (252) are slidably connected inside the second slide groove (251). The outer ends of the second sliders (252) are fixedly connected to one end of the clamping plate (26). A bidirectional threaded screw (253) is provided inside the second slide groove (251). The bidirectional threaded screw (253) passes through the second slider (252) and is threadedly connected to its interior. The two ends of the bidirectional threaded screw (253) are rotatably connected to the inner wall of the second slide groove (251) through bearings. One end of the bidirectional threaded screw (253) extends outward to the outside of the rectangular plate (25) and is fixedly connected to a handwheel (254).

4. The PCB mounting and dispensing equipment according to claim 2, characterized in that: The short side of the I-shaped pressure plate (27) is provided with a circular groove (271). A spring (272) is fixedly connected to the inner bottom surface of the circular groove (271). A positioning post (273) is fixedly connected to the end of the spring (272) away from the inner bottom surface of the circular groove (271). The size of the positioning post (273) is adapted to the positioning hole (29). The end of the positioning post (273) away from the spring (272) is round.

5. The PCB mounting and dispensing equipment according to claim 1, characterized in that: A mounting plate (8) is fixedly connected to the middle of one side of the upper end of the workbench (1), and an electric push rod (7) is fixedly installed on the side of the mounting plate (8).

6. The PCB mounting and dispensing equipment according to claim 1, characterized in that: The moving component (6) includes a third slide groove (61), a third slider (62), a lead screw (63), and a servo motor (64). The worktable (1) has symmetrical third slide grooves (61) on both sides. The third slider (62) is slidably connected inside the third slide groove (61). The third slider (62) is fixedly connected to the lower end of the U-shaped frame (3). The lead screw (63) is installed inside the third slide groove (61) on the left side of the worktable (1). The lead screw (63) passes through the third slider (62) and is threadedly connected to it. The two ends of the lead screw (63) are rotatably connected to the inner wall of the third slide groove (61) through bearings. The servo motor (64) is fixedly installed at one end of the worktable (1). One end of the lead screw (63) extends outward to the outside of the worktable (1) and is fixedly connected to the output end of the servo motor (64).

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