Magnetic suction welding nozzle fixing seat applied to selective wave soldering

Abstract

The utility model is applicable to the technical field of nozzles, and provides a magnetic suction welding nozzle fixing seat applied to selective wave soldering, which comprises a magnetic suction nozzle fixing seat fixedly connected with a spiral blade, and the spiral blade is fixedly connected with a spiral separation blade; the spiral blade is used for bearing liquid tin, the spiral blocking piece is matched with the magnetic suction nozzle fixing base to prevent the liquid tin from splashing, meanwhile, the spiral blade is matched with the spiral blocking piece to guide the liquid tin, so that the liquid tin flows back to a tin furnace, blocky tin slag is reduced, and the specific sizes of the spiral blade and the spiral blocking piece are correspondingly set according to actual requirements. And the spiral blade is matched with the spiral baffle to reserve enough operation space, so that the inner wall can be scraped by a scraper during maintenance and cleaning, and stubborn tin slag condensed on the inner wall can be conveniently cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of nozzles, and in particular relates to a magnetic welding nozzle fixing seat used for selective wave soldering. Background Art

[0002] In the process of electronic manufacturing, wave soldering technology is indispensable. The characteristics of wave soldering technology determine that new liquid tin surfaces are constantly exposed to the air during the soldering process. The molten tin contacts oxygen in the air in a flowing state and oxidizes to form tin slag. With the popularization of lead-free solder, the problem of tin slag has become more serious, with a waste rate of up to 30%-50%. Therefore, reducing the generation of tin slag has become a compulsory subject in the electronic manufacturing industry. The tin slag generated by the splashing of the reflowing liquid tin in the furnace during the soldering process accounts for the majority of the total amount.

[0003] In order to remove the inevitable powdery tin slag and reduce the generation of blocky tin slag, the main method used in the industry is to add a tin receiving tray on the nozzle seat to act as a buffer for the liquid tin during the reflow process. However, with the accumulation of powdery tin slag, the tin guide holes of the tin receiving tray will face the risk of being blocked; during the production process, there is generally a protective gas flowing from bottom to top near the soldering seat, and the powdery tin slag remaining in the tin receiving tray will be blown onto the circuit board in this process, resulting in defective products; during maintenance and cleaning, tin guide holes that are too small are difficult to clean, and tin guide holes that are too large cannot play an ideal buffering role, so the structure faces a dilemma of modification. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a magnetic welding nozzle fixing seat used for selective wave soldering, aiming to solve the problems existing in the background technology.

[0005] The utility model is implemented as follows: a magnetic welding nozzle fixing seat used for selective wave soldering, comprising:

[0006] A magnetic nozzle fixing seat, wherein the magnetic nozzle fixing seat is fixedly connected with a spiral blade, and the spiral blade is fixedly connected with a spiral baffle.

[0007] As a further solution of the utility model, the magnetic nozzle fixing seat includes a nozzle fixing seat, a magnet, a nozzle and a threaded joint. The nozzle fixing seat is provided with a plurality of blind holes. The magnet is arranged in the blind holes. The magnet adsorbs the nozzle. The nozzle fixing seat is fixedly connected to the threaded joint, and the threaded joint is threadedly connected to the tin furnace.

[0008] As a further solution of the utility model, the number of the spiral blades and the number of the spiral baffles are both 2, and the spiral blades and the spiral baffles are symmetrical about the center of the magnetic nozzle fixing seat.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the spiral blades are used to receive liquid tin, the spiral baffle cooperates with the magnetic nozzle fixing seat to prevent liquid tin from splashing, and at the same time the spiral blades cooperate with the spiral baffle to drain the liquid tin, so that the liquid tin returns to the tin furnace, reducing the generation of blocky tin slag, the specific sizes of the spiral blades and the spiral baffle are set accordingly according to actual needs, and the spiral blades cooperate with the spiral baffle to leave enough operating space, which is enough to scrape the inner wall with a scraper during maintenance and cleaning, so as to facilitate the cleaning of the stubborn tin slag condensed thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the structure of a magnetic welding nozzle fixing seat for selective wave soldering provided by an embodiment of the utility model;

[0011] Figure 2 A three-dimensional diagram of a magnetic welding nozzle fixing seat for selective wave soldering provided by an embodiment of the utility model;

[0012] Figure 3 An installation diagram of a magnetic welding nozzle fixing seat for selective wave soldering provided by an embodiment of the utility model;

[0013] Figure 4 An exploded view of the magnetic nozzle fixing seat provided in an embodiment of the utility model.

[0014] In the attached drawings: 1-magnetic nozzle fixing seat, 11-nozzle fixing seat, 12-magnet, 13-nozzle, 14-blind hole, 15-threaded joint, 2-spiral blade, 3-spiral baffle. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0017] like Figures 1 to 4 As shown, an embodiment of the utility model is a magnetic welding nozzle fixing seat used for selective wave soldering, comprising:

[0018] A magnetic nozzle fixing seat 1 is fixedly connected to a spiral blade 2, and a spiral baffle 3 is fixedly connected to the spiral blade 2.

[0019] In this embodiment, the magnetic nozzle fixing seat 1 includes a nozzle fixing seat 11, a magnet 12, a nozzle 13 and a threaded joint 15. The nozzle fixing seat 11 is provided with a plurality of blind holes 14. The magnet 12 is arranged in the blind hole 14. The magnet 12 adsorbs the nozzle 13. The nozzle fixing seat 11 is fixedly connected to the threaded joint 15, and the threaded joint 15 is threadedly connected to the tin furnace; the number of the spiral blades 2 and the spiral baffles 3 are both 2, and the spiral blades 2 and the spiral baffles 3 are symmetrical about the center of the magnetic nozzle fixing seat 1. This arrangement makes it possible for the maximum drop of the liquid tin to be half of the pitch of the spiral blade 2 when the liquid tin falls, thereby reducing the liquid tin The falling height can prevent the liquid tin from splashing. At the same time, the two drainage channels are more conducive to the drainage of the liquid tin and slow down the stubborn tin slag condensed thereon, thereby extending the maintenance and cleaning cycle; the spiral blade 2 is used to receive the liquid tin, and the spiral baffle 3 cooperates with the magnetic nozzle fixing seat 1 to prevent the liquid tin from splashing. At the same time, the spiral blade 2 cooperates with the spiral baffle 3 to drain the liquid tin, so that the liquid tin returns to the tin furnace and reduces the generation of block tin slag. The specific sizes of the spiral blade 2 and the spiral baffle 3 are set accordingly according to actual needs, and the spiral blade 2 cooperates with the spiral baffle 3 to leave enough operating space, which is enough to scrape the inner wall with a scraper during maintenance and cleaning, so as to clean the stubborn tin slag condensed thereon.

[0020] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic welding nozzle fixing seat used for selective wave soldering, characterized in that: include: A magnetic nozzle fixing seat, wherein the magnetic nozzle fixing seat is fixedly connected with a spiral blade, and the spiral blade is fixedly connected with a spiral baffle. The number of the spiral blade and the spiral baffle are both 2, and the spiral blade and the spiral baffle are symmetrical about the center of the magnetic nozzle fixing seat.

2. The magnetic welding nozzle fixing seat for selective wave soldering according to claim 1, characterized in that: The magnetic nozzle fixing seat includes a nozzle fixing seat, a magnet, a nozzle and a threaded joint. The nozzle fixing seat is provided with a plurality of blind holes, the magnet is arranged in the blind holes, the magnet adsorbs the nozzle, the nozzle fixing seat is fixedly connected to the threaded joint, and the threaded joint is threadedly connected to the tin furnace.

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