Nozzle of laser solder ball spraying soldering machine

Abstract

The utility model relates to the technical field of laser solder ball welding machine nozzles, in particular to a laser solder ball spraying soldering machine nozzle which comprises a nozzle pipeline body, and the bottom end of the nozzle pipeline body penetrates through and is fixedly connected with a first screwing connecting piece. When the nozzle needs to be overhauled and maintained after being used for a period of time, the locking state is relieved by removing the locking piece, inserted into the locking insertion hole, between the first extending locking plate and the second extending locking plate, then the second screwing connecting piece is screwed out to take down the nozzle, and the old nozzle is reserved for standby application or directly restored after being overhauled and maintained. And a new nozzle can be directly replaced without delaying the production work, so that the maintenance efficiency of equipment is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of laser solder ball welding machine nozzle technology, specifically to a laser solder ball jetting soldering machine nozzle. Background Technology

[0002] Laser soldering is a type of laser processing that uses a laser as a heat source. High-energy laser pulses locally heat a small area of ​​the material, causing the laser radiation energy to diffuse into the material through heat conduction, heating the leads (or leadless connection pads). Heat is then transferred to the substrate through specialized laser solder (laser solder paste / solder wire / solder balls or pre-made solder sheets). When the temperature reaches the solder's melting point, the solder melts, wetting the substrate and leads, thus forming a solder joint. Because laser soldering is non-contact and involves rapid, localized heating, it completes the soldering process before the heat energy is fully conducted to the desired joint. This results in high efficiency, no mechanical stress damage, rapid heating, and a small heat-affected zone.

[0003] Publication No. CN220347418U discloses a laser solder ball welding machine nozzle with a protective structure. The nozzle mechanism surface is continuously cooled by cold water, preventing the high-temperature solder solution from damaging the nozzle, extending its service life, and improving its working efficiency, effectively meeting usage requirements. However, during laser soldering, the solder ball needs heating time to melt before being ejected from the nozzle. If it is directly stuck at the nozzle before melting, molten solder residue will remain. After cooling, this residue will adhere to the inner wall of the nozzle. Over time, this repeated solidification and melting of the solder ball will damage the nozzle, making replacement troublesome, time-consuming, and labor-intensive. Therefore, we propose a laser solder ball ejection soldering machine nozzle. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a nozzle for a laser solder ball jet soldering machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is a laser solder ball jet soldering machine nozzle, including a nozzle pipe body. The bottom end of the nozzle pipe body is connected to a first threaded connector, and the bottom end of the first threaded connector is threaded to a second threaded connector. Both sides of the first threaded connector are fixedly connected to a first extended locking plate, and both sides of the second threaded connector are fixedly connected to a second extended locking plate.

[0006] The bottom end of the second threaded connector is connected to a nozzle guide groove, and the bottom end of the nozzle guide groove is connected to a telescopic nozzle. A main drive rod is mounted on one side of the extension end of the telescopic nozzle, and the end of the main drive rod away from the telescopic nozzle is mounted on the extension end of the micro cylinder.

[0007] By adopting the above technical solution, when the nozzle needs to be inspected and maintained after a period of use, the locking state can be released by removing the locking part inserted into the locking hole between the first extension locking plate and the second extension locking plate. Then, the second screw connection can be unscrewed to remove the nozzle. The old nozzle can be kept as a spare after inspection and maintenance or directly restored, or a new nozzle can be directly replaced without delaying production. This effectively improves the maintenance efficiency of the equipment.

[0008] When the solder ball melts and sprays out solder, the main drive rod is first extended by a micro cylinder, which in turn moves the extension end of the telescopic nozzle. This allows the nozzle guide to get closer to the solder area, resulting in a neat solder joint shape, high welding strength, good conductivity, guaranteed welding quality, and precise welding positioning, eliminating the need for rework or re-soldering.

[0009] Specifically, the first and second extended locking plates are both connected at their center by locking holes of the same diameter.

[0010] By adopting the above technical solution, after the first threaded connector and the second threaded connector are threaded together, the extended locking plates fixedly connected to both sides of the two are inserted into the locking member to assist in fixing, so as to prevent the nozzle from falling off during the operation of the equipment.

[0011] Specifically, an inert gas inlet pipe is connected to one side of the top of the nozzle pipe body, and a ball-distributing plate guide pipe is connected to the side of the nozzle pipe body away from the inert gas inlet pipe.

[0012] By adopting the above technical solution, the ball-separating plate guide pipe connected to one side of the nozzle pipe body guides the solder ball to fall into the guide pipe after it falls onto the surface of the ball-separating plate. As the ball-separating plate rotates, the solder ball eventually falls into the guide pipe and slides into the nozzle pipe body. Then, inert gas is introduced through the inert gas inlet pipe and blown downwards by jet to prevent the solder ball from oxidizing due to premature contact with air during the melting process.

[0013] Specifically, a limiting transmission rod is fitted on the side of the extension end of the telescopic nozzle away from the main transmission rod, and the end of the limiting transmission rod away from the main transmission rod is fitted to a limiting telescopic rod.

[0014] By adopting the above technical solution, when the telescopic nozzle repeatedly extends and retracts with the operation of the micro cylinder, the limiting telescopic rod connected to the limiting transmission rod restricts its movement, so that the telescopic nozzle can only move in the vertical direction.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the nozzle needs to be inspected and maintained after a period of use, the locking state is released by removing the locking piece inserted into the locking hole between the first extension locking plate and the second extension locking plate. Then, the second screw connection is unscrewed to remove the nozzle. The old nozzle can be kept as a spare after inspection and maintenance or directly restored, or a new nozzle can be directly replaced without delaying production. This effectively improves the maintenance efficiency of the equipment.

[0017] In this technical solution, when the solder ball melts and sprays out solder, the main drive rod is first extended by a micro cylinder, which in turn drives the extension end of the telescopic nozzle to move. This allows the nozzle guide to get closer to the solder area, resulting in a neat solder joint shape, high welding strength, good conductivity, guaranteed welding quality, and precise welding positioning, eliminating the need for rework or re-soldering. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is an isometric view of the present invention;

[0020] Figure 2 This is a split schematic diagram of the connection structure between the first and second threaded connectors of this utility model.

[0021] Figure 3 This is a schematic diagram of the connection structure at the telescopic nozzle of this utility model.

[0022] In the figure: 1. Nozzle pipe body; 2. First threaded connector; 3. First extension locking plate; 4. Second threaded connector; 5. Second extension locking plate; 6. Locking hole; 7. Nozzle guide groove; 8. Telescopic nozzle; 9. Miniature cylinder; 10. Main drive rod; 11. Limiting drive rod; 12. Limiting telescopic rod; 13. Inert gas inlet pipe; 14. Ball distribution plate guide pipe. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1-3This utility model provides a technical solution: a laser solder ball jet soldering machine nozzle, including a nozzle pipe body 1, a first threaded connector 2 that is fixedly connected to the bottom end of the nozzle pipe body 1, a second threaded connector 4 that is threadedly connected to the bottom end of the first threaded connector 2, a first extension locking plate 3 that is fixedly connected to both sides of the first threaded connector 2, and a second extension locking plate 5 that is fixedly connected to both sides of the second threaded connector 4.

[0025] The bottom end of the second threaded connector 4 is connected to a nozzle guide groove 7, and the bottom end of the nozzle guide groove 7 is connected to a telescopic nozzle 8. A main drive rod 10 is mounted on one side of the extension end of the telescopic nozzle 8, and the end of the main drive rod 10 away from the telescopic nozzle 8 is mounted on the extension end of the micro cylinder 9.

[0026] When the nozzle needs to be inspected and maintained after a period of use, the locking state is released by removing the locking piece inserted into the locking hole 6 between the first extension locking plate 3 and the second extension locking plate 5. Then, the second screw connection 4 is unscrewed to remove the nozzle. The old nozzle can be kept as a spare after inspection and maintenance or directly restored. Alternatively, a new nozzle can be directly replaced without delaying production, which effectively improves the maintenance efficiency of the equipment.

[0027] When the solder ball melts and sprays out solder, the main drive rod 10 is first extended by the micro cylinder 9, which in turn drives the extension end of the telescopic nozzle 8 to move. This allows the nozzle guide to get closer to the solder part, resulting in a neat solder joint shape, high welding strength, good conductivity, guaranteed welding quality, and precise welding positioning, eliminating the need for rework and re-soldering.

[0028] As shown in the figure, the first extension locking plate 3 and the second extension locking plate 5 are both connected through locking holes 6 of the same diameter at their center.

[0029] When in use, after screwing the first threaded connector 2 and the second threaded connector 4 together, insert the extended locking plates that are fixedly connected to both sides of them into the locking member to assist in fixing, so as to prevent the nozzle from falling off during the operation of the equipment.

[0030] As shown in the figure, an inert gas inlet pipe 13 is connected to one side of the top of the nozzle pipe body 1, and a ball-distributing plate guide pipe 14 is connected to the side of the nozzle pipe body 1 away from the inert gas inlet pipe 13.

[0031] In use, the ball-separating plate guide pipe 14 connected to one side of the nozzle pipe body 1 guides the solder ball to fall into the guide pipe after it falls onto the surface of the ball-separating plate. As the ball-separating plate rotates, the solder ball eventually falls into the guide pipe and slides into the nozzle pipe body 1. Then, inert gas is introduced through the inert gas inlet pipe 13 and blown downwards by jet to prevent the solder ball from oxidizing due to premature contact with air during the melting process.

[0032] As shown in the figure, a limiting transmission rod 11 is installed on the side of the extension end of the telescopic nozzle 8 away from the main transmission rod 10, and the end of the limiting transmission rod 11 away from the main transmission rod 10 is installed on the limiting telescopic rod 12.

[0033] During use, when the telescopic nozzle 8 repeatedly extends and retracts with the operation of the micro cylinder 9, the telescopic nozzle 8 is restricted by the limiting telescopic rod 12 connected to the limiting transmission rod 11, so that the telescopic nozzle 8 can only move in the vertical direction.

[0034] The working process and usage of this utility model are as follows: When the nozzle needs to be inspected and maintained after a period of use, the locking state is released by removing the locking member inserted into the locking hole 6 between the first extension locking plate 3 and the second extension locking plate 5. Then, the second threaded connector 4 is unscrewed to remove the nozzle. The old nozzle can be kept as a spare after inspection and maintenance or directly restored. After the first threaded connector 2 and the second threaded connector 4 are threaded together, the extension locking plates fixed to both sides of them are inserted into the locking member for auxiliary fixation, which prevents the nozzle from falling off during equipment operation. A new nozzle can also be directly replaced without delaying production, effectively improving the maintenance efficiency of the equipment. When the solder ball melts and sprays out solder, the micro cylinder 9 first extends and pushes the main drive rod 10, which in turn drives the extension end of the telescopic nozzle 8 to move. As the miniature cylinder 9 repeatedly extends and retracts, the limiting extension rod 12 connected to the limiting transmission rod 11 restricts the extension nozzle 8 to only move vertically. This ensures the nozzle 8 can only move vertically with the extension of the miniature cylinder 9. The ball-distributing guide pipe 14 connected to one side of the nozzle pipe body 1 guides the solder ball. After falling onto the surface of the ball-distributing plate, the ball-distributing plate rotates and eventually falls into the guide pipe, sliding into the nozzle pipe body 1. Inert gas is then introduced through the inert gas inlet pipe 13 and blown downwards by jets to prevent the solder ball from prematurely contacting air and oxidizing during melting. This allows the nozzle guide to be closer to the solder joint, resulting in a neat solder joint shape, high welding strength, good conductivity, guaranteed welding quality, and precise welding positioning, eliminating the need for rework or re-soldering.

[0035] The foregoing has shown and described the basic structure, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A laser soldering nozzle for a soldering machine for soldering tin balls, characterized in that The nozzle pipe body (1) is provided with a first threaded connector (2) which is connected to the bottom end of the nozzle pipe body (1). A second threaded connector (4) is threaded to the bottom end of the first threaded connector (2). A first extension locking plate (3) is fixedly connected to both sides of the first threaded connector (2). A second extension locking plate (5) is fixedly connected to both sides of the second threaded connector (4). The bottom end of the second threaded connector (4) is connected to a nozzle guide groove (7), the bottom end of the nozzle guide groove (7) is connected to a telescopic nozzle (8), a main drive rod (10) is mounted on one side of the extension end of the telescopic nozzle (8), and the end of the main drive rod (10) away from the telescopic nozzle (8) is mounted on the extension end of the micro cylinder (9).

2. A nozzle for a laser soldering machine for soldering tin balls according to claim 1, characterized in that Both the first extended locking plate (3) and the second extended locking plate (5) have locking holes (6) of the same diameter connected through to each other at their center.

3. The nozzle of claim 1, wherein the nozzle is configured to direct the laser beam to the solder ball at a predetermined angle of incidence. An inert gas inlet pipe (13) is connected to one side of the top of the nozzle pipe body (1), and a ball-distributing plate guide pipe (14) is connected to the side of the nozzle pipe body (1) away from the inert gas inlet pipe (13).

4. The nozzle of a laser solder ball jetting soldering machine according to claim 1, characterized in that, The extension end of the telescopic nozzle (8) is equipped with a limiting transmission rod (11) on the side away from the main transmission rod (10), and the end of the limiting transmission rod (11) away from the main transmission rod (10) is equipped with a limiting telescopic rod (12).

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