A three-axis moving mechanism for PCBA glue injection

Abstract

The application discloses a three-axis moving mechanism for PCBA glue injection, which comprises a moving assembly, a fixed end of the moving assembly being connected to a work station, a movable end of the moving assembly being configured to move a glue injection assembly to a coordinate position of a workpiece calibration; the glue injection assembly is connected to the moving assembly, an output end of the glue injection assembly being configured to carry out glue injection at the coordinate position of the workpiece calibration; a glue pusher assembly, a fixed end of the glue pusher assembly being connected to the moving assembly, an output end of the glue pusher assembly being connected to an input end of the glue injection assembly. The problems of low precision of manual glue injection, insufficient mixing of two-component heat-conducting glue and inaccurate control of glue injection amount in the prior art are solved, the technical effects of accurate mixing of two-component glue and quantitative glue injection are realized, and the position precision of workpiece glue injection is also improved, so that the production efficiency and product quality are significantly improved.

Description

Technical Field

[0001] This application relates to the field of PCBA dispensing technology, and more particularly to a three-axis moving mechanism for PCBA dispensing. Background Technology

[0002] Components (capacitors, chips, modules, etc.) on PCBAs require efficient heat dissipation to ensure functional stability and extended lifespan. Two-component thermally conductive adhesives are an ideal choice due to their good corrosion resistance and rapid thermal conductivity, but they need to be thoroughly mixed to cure effectively and achieve optimal thermal conductivity.

[0003] Existing two-component adhesives often require manual application during the application process, resulting in low precision in the application position and difficulty in accurately controlling the amount of adhesive. For two-component adhesives, it is difficult to ensure that the two components are fully mixed, which affects the thermal conductivity and curing quality of the components on the PCBA. Furthermore, the effect of manual application is uncontrollable and increases the labor intensity.

[0004] Modern industry has increasingly higher requirements for product quality, production efficiency and automation. Two-component thermally conductive adhesives are widely used, but the automation and precision of existing adhesive application processes urgently need to be improved. Therefore, this application proposes a three-axis moving mechanism for PCBA adhesive application. Utility Model Content

[0005] This application provides a three-axis moving mechanism for PCBA glue dispensing, which solves the problems of low precision in manual glue dispensing, insufficient mixing of two-component thermally conductive adhesive, and inaccurate glue dispensing volume control in the prior art. It achieves the technical effect of precise mixing of two-component adhesive and quantitative glue dispensing, and also improves the positional accuracy of glue dispensing on the workpiece, thereby significantly improving production efficiency and product quality.

[0006] This utility model embodiment provides a three-axis moving mechanism for PCBA glue dispensing, including a moving component, the fixed end of which is connected to a workstation, and the movable end of which is configured to move the glue dispensing component to a coordinate position marked on the workpiece; a glue dispensing component connected to the moving component, the output end of which is configured to apply glue at the coordinate position marked on the workpiece; and a glue pusher component, the fixed end of which is connected to the moving component, and the output end of which is connected to the input end of the glue dispensing component.

[0007] In one possible implementation, the moving assembly includes a support foot, a transverse mounting backplate, a first moving member, a second moving member, and a third moving member; one end of the support foot is connected to the workstation platform, and the other end of the support foot is connected to the fixed end of the first moving member, the movable end of the first moving member is connected to the transverse mounting backplate; the fixed end of the second moving member is connected to the transverse mounting backplate, the movable end of the second moving member is connected to the fixed end of the third moving member, the movable end of the third moving member is connected to the glue dispensing assembly, the glue dispensing assembly being configured to apply glue at a coordinate position marked on the workpiece; the fixed end of the glue pusher assembly is connected to the fixed end of the third moving member.

[0008] In one possible implementation, the adhesive applicator assembly includes a first adhesive applicator drive, a first adhesive container, a first adhesive applicator connector, a first adhesive applicator plug, a first sealing push block, and a first adapter assembly. The output end of the first adhesive applicator drive is connected to the first sealing push block, which is slidably connected to the interior of the first adhesive container. The first adhesive applicator connector is connected to the outer side of the first adhesive container. One end of the first adhesive applicator connector is connected to one end of the first adhesive applicator plug, and the other end of the first adhesive applicator connector is connected to one end of the first adapter assembly. The other end of the first adapter assembly is connected to the adhesive dispensing assembly. The other end of the first adhesive applicator plug is connected to the fixed end of the first adhesive applicator drive, and the first adhesive applicator plug is connected to the fixed end of the third moving member.

[0009] In one possible implementation, the adhesive applicator assembly further includes a second adhesive applicator drive, a second adhesive container, a second adhesive applicator connector, a second adhesive applicator plug, a second sealing push block, and a second conversion connector assembly. The output end of the second adhesive applicator drive is connected to the second sealing push block, which is slidably connected to the interior of the second adhesive container. The outer side of the second adhesive container is connected to the second adhesive applicator connector, one end of which is connected to one end of the second adhesive applicator plug, and the other end of which is connected to one end of the second conversion connector assembly. The other end of the second conversion connector assembly is connected to the adhesive dispensing assembly. The other end of the second adhesive applicator plug is connected to the fixed end of the second adhesive applicator drive, and the second adhesive applicator plug is connected to the fixed end of the third moving member.

[0010] In one possible implementation, the glue dispensing assembly includes a glue valve, a mixing tube plug, and a glue nozzle; a first input end of the glue valve is connected to the first adapter assembly, and a second input end of the glue valve is connected to the second adapter assembly; an output end of the glue valve is connected to one end of the mixing tube plug, and the other end of the mixing tube plug is connected to the glue nozzle, the glue nozzle being configured to apply glue at a coordinate position calibrated on the workpiece; the glue valve is connected to the movable end of the third moving member.

[0011] One or more technical solutions provided in this application have at least the following technical effects:

[0012] This utility model embodiment employs a three-axis moving mechanism for PCBA glue dispensing, including a moving component, the fixed end of which is connected to a workstation, and the movable end of which is configured to move the glue dispensing component to a coordinate position marked on the workpiece, the workpiece being placed on the workstation; a glue dispensing component, connected to the moving component, the output end of which is configured to apply glue to the workpiece; and a glue pusher component, the fixed end of which is connected to the moving component, the output end of which is connected to the input end of the glue dispensing component, the glue pusher component being able to dispensing glue onto the workpiece. This invention provides adhesive, specifically a two-component thermally conductive adhesive. Through the cooperation of the adhesive applicator and dispensing components, it enables thorough mixing and quantitative dispensing of the two-component thermally conductive adhesive. The moving component precisely positions the nozzle, thereby achieving precise control of the dispensing position. This application solves the problems of low precision in manual dispensing, insufficient mixing of the two-component thermally conductive adhesive, and inaccurate dispensing volume control in the prior art. It achieves the technical effect of precise mixing and quantitative dispensing of the two-component adhesive, and also improves the positional accuracy of dispensing on the workpiece, thereby significantly improving production efficiency and product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 An isometric view of a three-axis moving mechanism for PCBA encapsulation provided in an embodiment of this application;

[0015] Figure 2 An isometric view of the adhesive applicator assembly provided in the embodiments of this application;

[0016] Figure 3 This is a front view of the adhesive applicator assembly provided in an embodiment of this application;

[0017] Figure 4 for Figure 3 AA section view;

[0018] Figure 5 This is an isometric view of the glue injection assembly provided in the embodiments of this application.

[0019] Icons: 1-Moving component; 11-Supporting foot; 12-Horizontal mounting backplate; 13-First moving part; 14-Second moving part; 15-Third moving part; 16-Glue valve moving backplate; 2-Glue injection assembly; 21-Glue valve; 22-Mixing tube plug; 23-Glue nozzle; 3-Glue pusher assembly; 31-First glue pusher drive; 32-First glue tank; 33-First glue pusher connector; 34-First glue pusher plug; 35-First sealing pusher block; 36-First adapter assembly; 37-Second glue pusher drive; 38-Second glue tank; 39-Second glue pusher connector; 40-Second glue pusher plug; 41-Second sealing pusher block; 42-Second adapter assembly. Detailed Implementation

[0020] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0022] This utility model embodiment provides a three-axis moving mechanism for PCBA glue dispensing, such as... Figure 1-5As shown, the assembly includes a moving component 1, the fixed end of which is connected to the worktable, and the movable end of which is configured to move the dispensing component 2 to the coordinate position marked on the workpiece; the dispensing component 2 is connected to the moving component 1, and the output end of the dispensing component 2 is configured to apply glue at the coordinate position marked on the workpiece; and the dispensing pusher assembly 3 is connected to the moving component 1, with its fixed end connected to the moving component 1 and its output end connected to the input end of the dispensing component 2.

[0023] For example, this application includes a vision system installed on the movable end of the moving component 1. The vision system can inspect the product after glue application and identify defective products. Furthermore, if there is a deviation in the glue application position, the movement of the moving component 1 can be adjusted through the control terminal after the vision system identifies the deviation, thereby improving the accuracy of the glue application position.

[0024] In the embodiments of this application, such as Figure 1-5 As shown, the moving assembly 1 includes a support foot 11, a transverse mounting back plate 12, a first moving member 13, a second moving member 14, and a third moving member 15. One end of the support foot 11 is connected to the worktable, and the other end of the support foot 11 is connected to the fixed end of the first moving member 13. The movable end of the first moving member 13 is connected to the transverse mounting back plate 12. The fixed end of the second moving member 14 is connected to the transverse mounting back plate 12, and the movable end of the second moving member 14 is connected to the fixed end of the third moving member 15. The movable end of the third moving member 15 is connected to the glue injection assembly 2, which is configured to apply glue at the coordinate position marked on the workpiece. The fixed end of the glue pusher assembly 3 is connected to the fixed end of the third moving member 15.

[0025] For example, it also includes a two-station turntable. The workpiece is placed on one of the two-station turntables and positioned by the positioning fixtures on the two-station turntables. The two-station turntables and the glue injection assembly 2 cooperate to achieve glue application at the coordinate position marked on the workpiece.

[0026] For example, the support foot 11 is made of a composite material, such as a combination of a metal matrix and a rubber pad. This type of support foot 11 can suppress vibrations caused by the start and stop of the motor, thereby ensuring the stability of the positioning.

[0027] In the embodiments of this application, such as Figure 1-5As shown, the glue applicator assembly 3 includes a first glue applicator drive 31, a first glue tank 32, a first glue applicator connector 33, a first glue applicator plug 34, a first sealing push block 35, and a first conversion connector assembly 36. The output end of the first glue applicator drive 31 is connected to the first sealing push block 35, and the first sealing push block 35 is slidably connected to the inside of the first glue tank 32. The first glue tank 32 is connected to the outside of the first glue applicator connector 33. One end of the first glue applicator connector 33 is connected to one end of the first glue applicator plug 34, and the other end of the first glue applicator connector 33 is connected to one end of the first conversion connector assembly 36. The other end of the first conversion connector assembly 36 is connected to the glue injection assembly 2. The other end of the first glue applicator plug 34 is connected to the fixed end of the first glue applicator drive 31, and the first glue applicator plug 34 is connected to the fixed end of the third moving member 15.

[0028] In the embodiments of this application, such as Figure 1-5 As shown, the glue applicator assembly 3 also includes a second glue applicator drive 37, a second glue tank 38, a second glue applicator connector 39, a second glue applicator plug 40, a second sealing push block 41, and a second conversion connector assembly 42. The output end of the second glue applicator drive 37 is connected to the second sealing push block 41, and the second sealing push block 41 is slidably connected to the inside of the second glue tank 38. The second glue tank 38 is connected to the outside of the second glue applicator connector 39. One end of the second glue applicator connector 39 is connected to one end of the second glue applicator plug 40, and the other end of the second glue applicator connector 39 is connected to one end of the second conversion connector assembly 42. The other end of the second conversion connector assembly 42 is connected to the glue injection assembly 2. The other end of the second glue applicator plug 40 is connected to the fixed end of the second glue applicator drive 37, and the second glue applicator plug 40 is connected to the fixed end of the third moving member 15.

[0029] For example, the first glue bucket 32 ​​and the second glue bucket 38 are respectively filled with glue of different components. The glue valve 21 can control the glue output of the first glue bucket 32 ​​and the second glue bucket 38, and the glue of different components can be fully mixed by the mixing tube plug 22.

[0030] In the embodiments of this application, such as Figure 1-5 As shown, the glue dispensing assembly 2 includes a glue valve 21, a mixing tube plug 22, and a glue nozzle 23; the first input end of the glue valve 21 is connected to the first conversion connector assembly 36, and the second input end of the glue valve 21 is connected to the second conversion connector assembly 42; the output end of the glue valve 21 is connected to one end of the mixing tube plug 22, and the other end of the mixing tube plug 22 is connected to the glue nozzle 23, which is configured to dispense glue at the coordinate position marked on the workpiece; the glue valve 21 is connected to the movable end of the third moving part 15.

[0031] For example, the moving component 1 also includes a valve moving back plate 16; the fixed end of the third moving component 15 is connected to the movable end of the second moving component 14 via the valve moving back plate 16.

[0032] For example, the vision system is installed on one side of the glue valve 21. The vision system can collect data on the glue injection status of the workpiece to determine whether the glue injection is qualified, facilitating the manual rejection of unqualified products. Specifically, the vision system can also capture the glue injection trajectory and glue shape on the workpiece surface in real time, and identify the glue line width, continuity, and positional deviation through image algorithms. If it exceeds the tolerance range, an alarm is triggered and the workpiece ID is recorded for subsequent rejection.

[0033] For example, the glue dispensing assembly 2 also includes a glue discharge bucket, a steel wire, a glue wiper, and a non-woven fabric; the glue wiper is connected to the worktable and is equipped with a non-woven fabric, which can wipe the glue on the nozzle 23; the glue discharge bucket is connected to the worktable and is equipped with a steel wire, which can scrape the glue on the nozzle 23, thereby collecting excess glue into the glue discharge bucket for reuse.

[0034] For example, when the glue valve 21 is replaced with the mixing tube plug 22, the two components of glue are mixed through the mixing tube plug 22. When the glue is first dispensed, the glue needs to be discharged into the scraper bucket because the glue is not mixed sufficiently. After each glue dispensing, the glue nozzle 23 needs to be moved to the wire of the scraper bucket to scrape the glue, so as to avoid glue residue on the glue nozzle 23 and affecting the glue dispensing quality of the next time. If the equipment is suspended due to special circumstances, when the abnormal situation is restored, the glue nozzle 23 needs to be moved to the glue wiping position of the glue wiper. The glue on the glue nozzle 23 is wiped with non-woven cloth to further keep the glue nozzle 23 clean.

[0035] For example, both the first adhesive pushing drive 31 and the second adhesive pushing drive 37 are cylinders, which use the thrust of the cylinders to expel the adhesive from the first adhesive container 32 and the second adhesive container 38 through their respective outlets. Both the first adapter assembly 36 and the second adapter assembly 42 include pipes and connectors. The first adhesive container 32 and the second adhesive container 38 are connected to one end of the pipe via the connector, and the other end of the pipe is connected to the adhesive valve 21. It is important to note that the adhesive components should be filled according to the markings on the first adhesive container 32 and the second adhesive container 38; reversing the filling will cause irreversible damage to the adhesive valve 21 and the pipes.

[0036] For example, the moving component 1 drives the dispensing component 2 to move to the coordinate position marked on the workpiece. Specifically, the first moving component 13 controls the horizontal mounting back plate 12 to move in the X direction; the second moving component 14 drives the dispensing valve moving back plate 16 to move in the Y direction; and the third moving component 15 drives the dispensing valve 21 to move in the Z direction. During the dispensing process, the first dispensing drive component 31 pushes the first sealing push block 35, which pushes the glue in the first glue tank 32 to be delivered to the dispensing valve 21 through the first conversion joint assembly 36. The second dispensing drive component 37 simultaneously pushes the second sealing push block 41, which pushes the glue in the second glue tank 38 to be delivered to the dispensing valve 21 through the second conversion joint assembly 42. After the mixing tube plug 22 mixes the two-component glue, the glue is applied to the designated coordinate point on the workpiece through the dispensing nozzle 23.

[0037] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0038] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A three-axis moving mechanism for PCBA dispensing, characterized in that, include The fixed end of the moving component (1) is connected to the workstation, and the movable end of the moving component (1) is configured to move the dispensing component (2) to the coordinate position marked on the workpiece. The glue injection assembly (2) is connected to the moving assembly (1), and the output end of the glue injection assembly (2) is configured to apply glue at the coordinate position calibrated on the workpiece. The glue applicator assembly (3) has a fixed end connected to the moving assembly (1) and an output end connected to the input end of the glue dispensing assembly (2).

2. The three-axis moving mechanism for PCBA dispensing according to claim 1, characterized in that, The movable component (1) includes a support foot (11), a transverse mounting back plate (12), a first movable component (13), a second movable component (14), and a third movable component (15). One end of the support foot (11) is connected to the workbench, and the other end of the support foot (11) is connected to the fixed end of the first moving part (13). The movable end of the first moving part (13) is connected to the transverse mounting back plate (12). The fixed end of the second moving part (14) is connected to the transverse mounting back plate (12), the movable end of the second moving part (14) is connected to the fixed end of the third moving part (15), the movable end of the third moving part (15) is connected to the glue injection assembly (2), and the glue injection assembly (2) is configured to apply glue at the coordinate position marked on the workpiece. The fixed end of the adhesive applicator assembly (3) is connected to the fixed end of the third moving part (15).

3. The three-axis moving mechanism for PCBA dispensing according to claim 2, characterized in that, The adhesive applicator assembly (3) includes a first adhesive applicator drive (31), a first adhesive tank (32), a first adhesive applicator connector (33), a first adhesive applicator plug (34), a first sealing push block (35), and a first adapter assembly (36). The output end of the first adhesive pushing drive (31) is connected to the first sealing push block (35), and the first sealing push block (35) is slidably connected to the inside of the first glue bucket (32); The first glue bucket (32) is connected to the outside of the first glue pusher connector (33). One end of the first glue pusher connector (33) is connected to one end of the first glue pusher plug (34). The other end of the first glue pusher connector (33) is connected to one end of the first adapter assembly (36). The other end of the first adapter assembly (36) is connected to the glue injection assembly (2). The other end of the first glue applicator plug (34) is connected to the fixed end of the first glue applicator drive (31), and the first glue applicator plug (34) is connected to the fixed end of the third moving part (15).

4. The three-axis moving mechanism for PCBA dispensing according to claim 3, characterized in that, The adhesive applicator assembly (3) also includes a second adhesive applicator drive (37), a second adhesive bucket (38), a second adhesive applicator connector (39), a second adhesive applicator plug (40), a second sealing push block (41), and a second conversion connector assembly (42). The output end of the second adhesive pusher (37) is connected to the second sealing pusher (41), and the second sealing pusher (41) is slidably connected to the inside of the second adhesive bucket (38); The second glue bucket (38) is connected to the outside of the second glue pusher connector (39). One end of the second glue pusher connector (39) is connected to one end of the second glue pusher plug (40), and the other end of the second glue pusher connector (39) is connected to one end of the second adapter assembly (42). The other end of the second adapter assembly (42) is connected to the glue injection assembly (2). The other end of the second glue applicator plug (40) is connected to the fixed end of the second glue applicator drive (37), and the second glue applicator plug (40) is connected to the fixed end of the third moving part (15).

5. The three-axis moving mechanism for PCBA dispensing according to claim 4, characterized in that, The glue dispensing assembly (2) includes a glue valve (21), a mixing tube plug (22), and a glue nozzle (23). The first input end of the glue valve (21) is connected to the first adapter assembly (36), and the second input end of the glue valve (21) is connected to the second adapter assembly (42); The output end of the glue valve (21) is connected to one end of the mixing tube plug (22), and the other end of the mixing tube plug (22) is connected to the glue nozzle (23). The glue nozzle (23) is configured to apply glue at the coordinate position marked on the workpiece. The glue valve (21) is connected to the movable end of the third moving part (15).

Images