A suction nozzle for exclusively sucking solder balls

Abstract

The utility model discloses a kind of suction nozzles specially sucking soldering ball, it is related to electronic component welding auxiliary technical field, including hollow pipe body, the end of hollow pipe body is provided with suction end, the inside of hollow pipe body is slidably provided with movable rod, the end of movable rod is provided with plugging block, the inside of suction end is inserted in plugging block, the bottom of movable rod is provided with protruding tooth, the utility model passes through the synergic cooperation of hollow pipe body, suction end, plugging block, movable rod, transmission gear and link pipe, controllable opening and closing of suction passage can be realized, transmission gear is reversely rotated when releasing soldering ball, plugging block resets and blocks suction end, both cut off negative pressure passage, and can form slightly push to soldering ball, solve the problem that traditional suction nozzle soldering ball is easy to fall off, release adhesion, greatly improve the stability and precision of soldering ball transfer.

Description

Technical Field

[0001] This utility model relates to the field of electronic component welding auxiliary technology, and in particular to a suction nozzle specifically designed for picking up solder balls. Background Technology

[0002] In processes such as electronic component packaging and circuit board rework, it is often necessary to precisely transfer and place tiny solder balls.

[0003] However, in existing technologies, most nozzles used to pick up welding balls are single hollow tube structures that rely solely on negative pressure to adsorb the welding balls. If the negative pressure is unstable or there is a slight leak in the pipeline during the transfer process, the welding balls are very likely to fall off. Furthermore, after adsorption, there is no physical restraint on the welding balls. If the nozzle tilts even slightly, the welding balls will slip off the adsorption port, resulting in welding ball loss and rework. At the same time, the adsorption channel of traditional nozzles has no controllable sealing structure. When releasing the welding balls, the negative pressure must be turned off first, which can easily cause the welding balls to stick to the adsorption port and be difficult to detach, seriously affecting the accuracy of welding ball transfer and work efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art where solder balls are easily detached during suction, easily stick together during release, and have uncontrollable adsorption state, and to propose a special suction nozzle for suctioning solder balls.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a suction nozzle specifically for absorbing welding balls, comprising a hollow tube body, an adsorption end provided at the end of the hollow tube body, a movable rod slidably disposed inside the hollow tube body, a sealing block provided at the end of the movable rod, the sealing block being inserted into the adsorption end, a protruding tooth provided at the bottom of the movable rod, a transmission gear rotatably mounted on the inner side of the hollow tube body, the transmission gear meshing with the movable rod, and a connecting tube threadedly connected to the end of the hollow tube body.

[0006] Preferably, a guide ridge is provided on the inner wall of the hollow tube, and the guide ridge slides in contact with the movable rod.

[0007] Preferably, a limiting groove is provided at the junction of the movable rod and the guide protrusion.

[0008] Preferably, a filter plate is provided on the inner wall of the hollow tube, and a gap is left between the filter plate and the movable rod.

[0009] Preferably, a thickened block is provided on the inner wall of the hollow tube, and the transmission gear is rotatably installed inside the thickened block.

[0010] Preferably, an operating block is fixedly connected to the end of the transmission gear, and the operating block is located on the outside of the hollow tube.

[0011] Preferably, a limiting plate is provided on the outer wall of the connecting rod between the transmission gear and the operating block, and the limiting plate is attached to one side of the thickened block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the controllable opening and closing of the adsorption channel can be achieved through the coordinated operation of the hollow tube body, adsorption end, sealing block, movable rod, transmission gear and connecting tube. When picking up welding balls, the transmission gear is rotated to drive the movable rod to move, so that the sealing block moves out from the adsorption end. The negative pressure connected to the connecting tube is used to adsorb the welding balls. When releasing, the transmission gear is rotated in the opposite direction, and the sealing block is reset to seal the adsorption end. This not only cuts off the negative pressure path, but also forms a slight push on the welding balls, which solves the problems of easy welding ball drop and adhesion during release in traditional nozzles, and greatly improves the stability and accuracy of welding ball transfer.

[0013] 2. In this utility model, the guiding and limiting of the guide convex strip and the limiting groove, the solid installation of the transmission gear by the thickened block and the limiting plate, and the impurity filtering effect of the filter plate ensure the operational stability of the overall structure of the suction nozzle and extend the service life of the equipment. At the same time, the threaded connection of the connecting pipe can be adapted to negative pressure devices of different specifications, improving the versatility and adaptability of the suction nozzle. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a suction nozzle specifically designed for picking up solder balls is provided for this utility model. Figure 2 This utility model provides a structurally disassembled schematic diagram of a suction nozzle specifically designed for picking up solder balls; Figure 3 This utility model presents a schematic diagram of the internal structure of a hollow tube for a suction nozzle specifically designed to pick up welding balls.

[0015] Legend: 1. Hollow tube body; 2. Adsorption end; 3. Sealing block; 4. Operating block; 5. Connecting pipe; 6. Movable rod; 7. Limiting groove; 8. Guide protrusion; 9. Thickened block; 10. Limiting plate; 11. Transmission gear; 12. Filter plate. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a suction nozzle specifically for absorbing welding balls, including a hollow tube body 1, an adsorption end 2 at the end of the hollow tube body 1, a movable rod 6 slidably disposed inside the hollow tube body 1, a sealing block 3 at the end of the movable rod 6, the sealing block 3 being inserted into the adsorption end 2, a toothed protrusion at the bottom of the movable rod 6, a transmission gear 11 rotatably mounted on the inner side of the hollow tube body 1, the transmission gear 11 meshing with the movable rod 6, a connecting tube 5 threadedly connected to the end of the hollow tube body 1, a guide protrusion 8 disposed on the inner wall of the hollow tube body 1, the guide protrusion 8 slidingly contacting the movable rod 6, and a limiting groove 7 being formed at the junction of the movable rod 6 and the guide protrusion 8.

[0019] The specific settings and functions of this embodiment are described below. In use, the connecting pipe 5 is first connected to the external negative pressure device. When it is necessary to pick up the welding ball, the negative pressure device is activated to generate negative pressure inside the hollow tube 1, drawing the sealing block 3 into the interior of the hollow tube 1. The sealing block 3 will drive the movable rod 6 to slide inside the hollow tube 1. The guide protrusion 8 on the inner wall of the hollow tube 1 cooperates with the limiting groove 7 at the junction of the movable rod 6, guiding and limiting the sliding of the movable rod 6. At this time, the sealing block 3 at the end of the movable rod 6 will move out from the adsorption end 2, opening the channel of the adsorption end 2. The external negative pressure acts on the adsorption end 2 through the hollow tube 1, achieving welding ball adsorption. After moving to the target area, the transmission gear rotates in the opposite direction. Wheel 11 and movable rod 6 reset, causing the sealing block 3 to insert back into the adsorption end 2. The sealing channel separates the welding ball from the negative pressure environment inside the hollow tube 1, achieving the purpose of releasing the welding ball. In addition, during the movement of the sealing block 3, impurities inside the adsorption end 2 can also be cleaned out. The coordinated operation of each component ensures the stable and efficient operation of the nozzle. The guide convex strip 8 and the limiting groove 7 prevent the movable rod 6 from sliding and deviating. The meshing transmission of the transmission gear 11 makes the sealing operation more convenient and controllable. The threaded connection of the connecting tube 5 facilitates docking with different negative pressure equipment. The overall structure realizes the precise absorption and stable clamping of the welding ball, improves the efficiency and accuracy of the welding ball transfer operation, and reduces the risk of welding ball falling and being lost.

[0020] Example 2: Figure 2 and Figure 3As shown, a filter plate 12 is provided on the inner wall of the hollow tube 1, and a gap is left between the filter plate 12 and the movable rod 6. A thickened block 9 is provided on the inner wall of the hollow tube 1. A transmission gear 11 is rotatably installed inside the thickened block 9. An operating block 4 is fixedly connected to the end of the transmission gear 11. The operating block 4 is located on the outer side of the hollow tube 1. A limit plate 10 is provided on the outer wall of the connecting rod between the transmission gear 11 and the operating block 4. The limit plate 10 is attached to one side of the thickened block 9.

[0021] The overall effect of this embodiment is that, during suction nozzle operation, the thickened block 9 on the inner wall of the hollow tube 1 provides a stable mounting base for the transmission gear 11. The operator can directly manipulate the control block 4 located on the outer side of the hollow tube 1, driving the transmission gear 11 to rotate inside the thickened block 9. At the same time, the limiting plate 10 on the outer wall of the connecting rod between the transmission gear 11 and the control block 4 will tightly fit against one side of the thickened block 9, limiting the axial displacement of the transmission gear 11 and preventing it from shifting during rotation. This ensures that the transmission gear 11 and the bottom teeth of the movable rod 6 always maintain stable meshing. The filter plate 12 on the inner wall of the hollow tube 1 plays a filtering role during the negative pressure adsorption process, and the filter plate 12 and the movable rod 6... The gaps between rods 6 do not obstruct the normal sliding of the movable rod 6. The thickened block 9 enhances the structural strength of the installation part of the transmission gear 11 and extends the service life of the components. The operating block 4 allows the operator to conveniently control the gear transmission from outside the tube, improving the ease of operation. The limiting plate 10 ensures the transmission stability of the transmission gear 11 and avoids the opening and closing accuracy of the sealing block 3 on the adsorption end 2 due to gear misalignment. The filter plate 12 can filter impurities mixed in during adsorption and prevent impurities from entering the negative pressure pipeline and causing blockage. At the same time, the gaps do not interfere with the movement of the movable rod 6. The cooperation of each component further optimizes the overall performance of the nozzle and improves the stability and reliability of the welding ball adsorption operation.

[0022] The usage and working principle of this device are as follows: First, connect the connecting pipe 5 at the end of the hollow tube 1 to the external negative pressure device. Activate the negative pressure device to generate negative pressure inside the hollow tube 1. The negative pressure suction draws the sealing block 3 into the hollow tube 1. The sealing block 3 drives the movable rod 6 to slide inside the hollow tube 1. During this process, the guide protrusion 8 on the inner wall of the hollow tube 1 cooperates with the limiting groove 7 on the movable rod 6 to guide and limit the movable rod 6. The movement of the movable rod 6 causes the sealing block 3 to move out of the adsorption end 2, opening the channel of the adsorption end 2. Negative pressure is then applied to the adsorption end 2 through the hollow tube 1, completing the adsorption of the welding ball. Subsequently, the welding ball is moved to the target area, and the operating block 4 on the outside of the hollow tube 1 is manipulated to drive it... The connected transmission gear 11 rotates in the opposite direction inside the thickened block 9. The limiting plate 10 fits against one side of the thickened block 9 to restrict the axial displacement of the transmission gear 11, ensuring that the transmission gear 11 and the bottom protruding teeth of the movable rod 6 are stably meshed. The reverse rotation of the transmission gear 11 drives the movable rod 6 to reset. The movable rod 6 pushes the sealing block 3 to re-insert into the adsorption end 2. The sealing channel isolates the welding ball from the negative pressure environment inside the hollow tube 1, realizing the release of the welding ball. At the same time, the sealing block 3 can clean the impurities inside the adsorption end 2 during its movement. Throughout the process, the filter plate 12 on the inner wall of the hollow tube 1 will filter the impurities during negative pressure adsorption, and the gap between the filter plate 12 and the movable rod 6 does not hinder the normal sliding of the movable rod 6.

[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A suction nozzle specifically for picking up solder balls, comprising a hollow tube (1), characterized in that: The hollow tube (1) is provided with an adsorption end (2) at its end. A movable rod (6) is slidably provided inside the hollow tube (1). A sealing block (3) is provided at the end of the movable rod (6). The sealing block (3) is inserted into the adsorption end (2). A protruding tooth is provided at the bottom of the movable rod (6). A transmission gear (11) is rotatably installed on the inner side of the hollow tube (1). The transmission gear (11) meshes with the movable rod (6). A connecting pipe (5) is threadedly connected to the end of the hollow tube (1).

2. The suction nozzle for specifically picking up solder balls according to claim 1, characterized in that: The hollow tube (1) has a guide ridge (8) on its inner wall, and the guide ridge (8) slides in contact with the movable rod (6).

3. The suction nozzle for specifically picking up solder balls according to claim 1, characterized in that: A limiting groove (7) is provided at the junction of the movable rod (6) and the guide protrusion (8).

4. The suction nozzle for specifically picking up solder balls according to claim 1, characterized in that: A filter plate (12) is provided on the inner wall of the hollow tube (1), and a gap is left between the filter plate (12) and the movable rod (6).

5. A suction nozzle specifically for picking up solder balls according to claim 1, characterized in that: A thickened block (9) is provided on the inner wall of the hollow tube (1), and the transmission gear (11) is rotatably installed inside the thickened block (9).

6. A suction nozzle specifically for picking up solder balls according to claim 1, characterized in that: The end of the transmission gear (11) is fixedly connected to an operating block (4), which is located on the outside of the hollow tube (1).

7. A suction nozzle specifically for picking up solder balls according to claim 6, characterized in that: A limiting plate (10) is provided on the outer wall of the connecting rod between the transmission gear (11) and the operating block (4), and the limiting plate (10) is attached to one side of the thickened block (9).

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