Pin soldering equipment based on differential mode PFC and inductor PFC

Abstract

The utility model discloses a pin tin soldering device based on differential mode PFC and inductor PFC, and relates to the technical field of pin tin soldering. The pin tin soldering equipment based on the differential mode PFC and the inductor PFC comprises a bottom plate, a supporting table is fixedly installed above the bottom plate, a limiting mechanism used for limiting the positions of a coil and a substrate is installed above the bottom plate, a tin soldering mechanism used for tin soldering is fixedly installed above the supporting table, and a tin soldering mechanism used for tin soldering is installed above the supporting table. The limiting mechanism comprises a stepping motor fixedly installed in the center of the bottom plate, brackets are installed at the four corners of the supporting frame, limiting blocks are installed at the four corners of the supporting frame, element fixing, fixed pin tin soldering, inductor pin tin soldering and taking-down after tin soldering can be conducted at the same time in the four directions of the supporting frame, and the supporting frame is fixed to the top end of a rotating shaft of the stepping motor. And the rotating angle of the supporting frame is adjusted through the stepping motor, so that the four corner areas of the supporting frame are moved into the next working area, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pin soldering technology, specifically a pin soldering device based on differential mode PFC and inductive PFC. Background Technology

[0002] Differential-mode inductors and PFC inductors are both commonly used inductor components in electronic circuits, playing a crucial role in filtering and power factor correction. PFC inductors are primarily used to improve the power factor of a power supply, bringing it closer to 1, thereby improving grid efficiency. Differential-mode inductors, on the other hand, are mainly used to suppress differential-mode interference in circuits. Both are related to inductance, but their functions and applications differ.

[0003] The existing Chinese utility model patent with publication number CN222053394U discloses a plug-in type PCB pin soldering device, including a control panel, a first direction component, a second direction component, a third direction component, a soldering gun component, and an automatic solder feeding component. The control panel is equipped with a control module. The first direction component drives the second direction component to move linearly back and forth in the Y-axis direction. The second direction component has a base for fixing at least one PCB board fixture. The second direction component drives the base to move linearly back and forth in the X-axis direction. The third direction component drives the soldering gun component to move linearly back and forth in the Z-axis direction. The automatic solder feeding component is fixed to a support frame and is used to feed solder wire to the soldering gun component. There are multiple PCB pins to be soldered on the PCB board fixture. The control module controls the soldering gun component to accurately land in the area of ​​the soldering point according to its stored coordinate parameters, performing precise positioning and soldering, which reduces the risk of missed soldering, has high soldering efficiency, and reliable soldering quality.

[0004] The aforementioned pin soldering equipment adjusts the position of the soldering gun assembly by driving three directional components to solder the pins one by one. This method is inefficient, and after the soldering iron melts the solder wire, it cannot cool the molten solder quickly. The molten solder will drip through the pin openings on the substrate under the action of gravity, resulting in some of it dripping down. This means that the substrate and the pin cannot be completely wrapped with solder, affecting the connection effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a pin soldering device based on differential mode PFC and inductive PFC, which solves the problems of low efficiency and inability to cool the solder quickly.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A pin soldering device based on differential mode PFC and inductive PFC includes a base plate, a support platform is fixedly installed on the top of the base plate, a limiting mechanism for limiting the position of the coil and the substrate is installed on the top of the base plate, and a soldering mechanism for soldering is fixedly installed on the top of the support platform.

[0007] The limiting mechanism includes a stepper motor fixedly installed at the center of the base plate, a support frame fixedly installed at the top of the stepper motor shaft, guide columns and transmission cylinders installed at the four corners of the support frame, a bracket movably installed above the support frame, and limiting blocks movably installed on the inner sides of the four corners of the support frame.

[0008] The soldering mechanism includes a downward pressure cylinder fixedly installed below the flat plate structure at the top of the support platform. A double-base connecting frame and a four-base connecting frame are fixedly installed at the bottom of the downward pressure cylinder. A double-port branch pipe is inserted above the double-base connecting frame, and a four-port branch pipe is inserted above the four-base connecting frame. An air pump is connected to the top of the double-port and four-port branch pipes. An electric soldering iron and a limiting tube are fixedly installed at the bottom of the double-base and four-base connecting frames. A flexible tube is connected to the top of the limiting tube.

[0009] Preferably, the guide posts are fixedly installed at the four corners of the support frame and at both ends of the limiting blocks. The support frame is movably installed above the four corners of the support frame via the guide posts, and the limiting blocks are mirror-symmetrically installed on the inner sides of the four corners of the support frame via the guide posts.

[0010] Preferably, the guide column and the support frame are connected in a sliding manner, the transmission cylinder is installed at the four corners of the bottom surface of the bracket and at the center of the limiting block, and the fixed end of the transmission cylinder is fixedly connected to the support frame.

[0011] Preferably, the top surface of the bracket has an opening at its center, and the inner wall of the opening is stepped. The bottom surface of the bracket has a vertically downward protrusion on its inner side, and the center of one side of the limiting block has an arc-shaped structure.

[0012] Preferably, the downward pressing cylinders are symmetrically installed on both sides of the double-base connecting frame and the four-base connecting frame with the center of the double-base connecting frame and the four-base connecting frame as the reference. The soldering irons under the double-base connecting frame are mirror-symmetrically installed and staggered front to back.

[0013] Preferably, the soldering iron below the four-base connecting frame points to the central axis of the four-base connecting frame, the limiting tube is installed on one side of each soldering iron through the double-base connecting frame and the four-base connecting frame, and its end points to the end of the soldering iron, and the branch structure of the double-port branch tube and the four-port branch tube passes through the bottom end of the flat plate structure at the top of the support platform and points between the corresponding soldering iron and the limiting tube.

[0014] Beneficial effects

[0015] This invention provides a pin soldering device for differential mode PFC and inductive PFC. Compared with the prior art, it has the following advantages:

[0016] (1) The pin soldering equipment based on differential mode PFC and inductive PFC uses two air pumps to supply air to the dual-port branch pipe and the four-port branch pipe respectively. The dual-port branch pipe and the four-port branch pipe are made of metal above the support platform and below the dual-base connecting frame and the four-base connecting frame, and are made of rubber in between. While guiding the airflow to the solder joint, the length of the rubber part below can be redundant to adapt to the position changes of the dual-base connecting frame and the four-base connecting frame. After the soldering iron is lifted after soldering, the air pump starts and guides the airflow to blow to the solder joint through the dual-port branch pipe and the four-port branch pipe. Since the solder on the substrate surface does not come into direct contact with the heat source after the soldering iron is lifted, it can be cooled and solidified quickly under the action of the airflow, thereby preventing the molten solder from dripping due to slow cooling.

[0017] (2) The pin soldering equipment based on differential mode PFC and inductive PFC can precisely adjust the rotation angle of the support frame by setting a stepper motor. Since brackets and limit blocks are installed at the four corners of the support frame, the fixing of components, soldering of fixed pins, soldering of inductive pins, and removal after soldering can be carried out simultaneously in four directions of the support frame. The support frame is fixed to the top of the stepper motor shaft. The rotation angle of the support frame is adjusted by the stepper motor, so that the four corner areas of the support frame can be moved to the next working area, thereby improving efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the support frame installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the air pump installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the double-port branch pipe and the four-port branch pipe of this utility model;

[0022] Figure 5 This is a schematic diagram showing the position and structure of the soldering iron and the limiting tube of this utility model;

[0023] In the diagram: 1. Base plate; 11. Support platform; 2. Limiting mechanism; 21. Stepper motor; 22. Support frame; 23. Guide column; 24. Transmission cylinder; 25. Bracket; 26. Limiting block; 3. Soldering mechanism; 31. Pressing cylinder; 32. Double base connecting frame; 33. Four base connecting frame; 34. Double-port branch pipe; 35. Four-port branch pipe; 36. Air pump; 37. Soldering iron; 38. Limiting tube; 39. Flexible hose. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a pin soldering device based on differential mode PFC and inductive PFC includes a base plate 1, a support platform 11 fixedly installed on the top of the base plate 1, and a limiting mechanism 2 for limiting the position of the coil and the substrate installed on the top of the base plate 1. The limiting mechanism 2 includes a stepper motor 21 fixedly installed at the center of the base plate 1, a support frame 22 fixedly installed at the top of the shaft of the stepper motor 21, guide posts 23 and transmission cylinders 24 installed at the four corners of the support frame 22, a bracket 25 movably installed on the top of the support frame 22, and limiting blocks 26 movably installed on the inner side of the four corners of the support frame 22. The guide posts 23 are fixedly installed on the support frame. The support frame 22 is movably mounted above the four corners of the support frame 22 via guide posts 23. The limit blocks 26 are mirror-symmetrically mounted on the inner side of the four corners of the support frame 22 via guide posts 23. The guide posts 23 and the support frame 22 form a sliding connection. The transmission cylinder 24 is installed at the four corners of the bottom surface of the bracket 25 and the center of the limit blocks 26. The fixed end of the transmission cylinder 24 is fixedly connected to the support frame 22. The top surface of the bracket 25 has an opening structure at the center, and the inner wall of the opening is stepped. The bottom surface of the bracket 25 has a vertically downward protrusion on the inner side. The center of one side of the limit block 26 has an arc surface structure.

[0026] Specifically, the base plate 1 supports the support platform 11 and the stepper motor 21. The stepper motor 21 precisely adjusts the rotation angle of the support frame 22. The guide column 23 restricts the movement direction of the bracket 25 and the limiting block 26. The transmission cylinder 24 adjusts the spacing of the limiting block 26 so that the limiting block 26 can clamp the coil. Then, the transmission cylinders 24 at the four corners of the bottom surface of the bracket 25 adjust the height of the bracket 25 so that the coil pins can pass through the opening in the substrate at the center opening of the bracket 25. Subsequent soldering is performed. Since brackets 25 and limit blocks 26 are installed at the four corners of the support frame 22, different operations can be performed in four directions of the support frame 22. The fixing of components, soldering of fixed pins, soldering of inductor pins, and removal after soldering can be performed simultaneously in four directions of the support frame 22. Furthermore, the support frame 22 is fixed to the top of the rotating shaft of the stepper motor 21. The rotation angle of the support frame 22 is adjusted by the stepper motor 21, thereby moving the four corner areas of the support frame 22 to the next working area.

[0027] A soldering mechanism 3 for soldering is fixedly installed above the support platform 11. The soldering mechanism 3 includes a downward pressure cylinder 31 fixedly installed below the top plate structure of the support platform 11. A double-base connecting frame 32 and a four-base connecting frame 33 are fixedly installed at the bottom of the downward pressure cylinder 31. A double-port branch pipe 34 is inserted above the double-base connecting frame 32, and a four-port branch pipe 35 is inserted above the four-base connecting frame 33. An air pump 36 is connected to the top of the double-port branch pipe 34 and the four-port branch pipe 35. An electric soldering iron 37 and a limiting tube 38 are fixedly installed at the bottom of the double-base connecting frame 32 and the four-base connecting frame 33. A flexible hose 39 is connected to the top of the limiting tube 38. Cylinders 31 are symmetrically installed on both sides of the double-base connecting frame 32 and the four-base connecting frame 33 with the center of the double-base connecting frame 32 and the four-base connecting frame 33 as the reference. Soldering irons 37 under the double-base connecting frame 32 are mirror-symmetrically installed and staggered front and back. Soldering irons 37 under the four-base connecting frame 33 point to the central axis of the four-base connecting frame 33. Limiting tubes 38 are installed on one side of each soldering iron 37 through the double-base connecting frame 32 and the four-base connecting frame 33, and their ends point to the ends of the soldering iron 37. The branch structure of the double-port branch tube 34 and the four-port branch tube 35 passes through the bottom of the flat plate structure at the top of the support platform 11 and points between the corresponding soldering iron 37 and the limiting tube 38.

[0028] Specifically, the downward-pressing cylinder 31 can adjust the height of the dual-base connecting frame 32 and the quad-base connecting frame 33 to facilitate contact between the bottom of the soldering iron 37 and the substrate. The dual-port branch pipe 34 and the quad-port branch pipe 35 located above the support platform 11 and below the dual-base connecting frame 32 and the quad-base connecting frame 33 are made of metal, with rubber in between. This allows the airflow to be directed towards the solder joints while the redundant length of the lower rubber section accommodates changes in the position of the dual-base connecting frame 32 and the quad-base connecting frame 33. The bottom of the soldering iron 37 has a groove structure that... The tension allows for the storage of partially molten solder before soldering. During the descent, the pins pass through the solder at the bottom of the soldering iron 37, thereby improving the solder's enveloping effect on the pins. The limiting tube 38 and the flexible tube 39 facilitate the delivery of solder wire to the solder joint via the solder wire delivery equipment. The portion of the flexible tube 39 and the lead wire of the soldering iron 37 located between the double-base connecting frame 32, the four-base connecting frame 33, and the top plane structure of the support platform 11 is provided with a certain length of redundancy. In addition, all contents not described in detail in this specification are prior art known to those skilled in the art.

[0029] During operation, there are two air pumps 36, which respectively supply air to the dual-port branch pipe 34 and the four-port branch pipe 35. The dual-port branch pipe 34 and the four-port branch pipe 35 are made of metal above the support platform 11 and below the dual-base connecting frame 32 and the four-base connecting frame 33, with rubber material between them. This allows the airflow to be guided towards the solder joints while the length of the lower rubber section can accommodate changes in the position of the dual-base connecting frame 32 and the four-base connecting frame 33. After the soldering iron 37 completes soldering and is lifted, the air pump 36 starts, guiding the airflow through the dual-port branch pipe 34 and the four-port branch pipe 35 towards the solder joints. Because the solder on the substrate surface is on the soldering iron 37... After being lifted, it does not come into direct contact with the heat source and can be quickly cooled and solidified under the action of airflow, thus preventing the molten solder from dripping due to slow cooling. The stepper motor 21 can precisely adjust the rotation angle of the support frame 22. Since the support frame 22 is equipped with brackets 25 and limit blocks 26 at all four corners, the fixing of components, soldering of fixed pins, soldering of inductor pins, and removal after soldering can be carried out simultaneously in four directions of the support frame 22. Furthermore, the support frame 22 is fixed to the top of the rotating shaft of the stepper motor 21. The rotation angle of the support frame 22 is adjusted by the stepper motor 21, thereby moving the four corner areas of the support frame 22 to the next working area, thus improving efficiency.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] 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 pin soldering device based on differential mode PFC and inductive PFC, comprising a base plate (1), wherein a support platform (11) is fixedly installed on the top of the base plate (1), characterized in that: A limiting mechanism (2) for limiting the position of the coil and the substrate is installed above the base plate (1), and a soldering mechanism (3) for soldering is fixedly installed above the support platform (11). The limiting mechanism (2) includes a stepper motor (21) fixedly installed at the center of the base plate (1), a support frame (22) fixedly installed at the top of the shaft of the stepper motor (21), guide columns (23) and transmission cylinders (24) installed at the four corners of the support frame (22), a bracket (25) movably installed above the support frame (22), and limiting blocks (26) movably installed on the inner side of the four corners of the support frame (22). The soldering mechanism (3) includes a pressing cylinder (31) fixedly installed below the top plate structure of the support platform (11). The bottom end of the pressing cylinder (31) is fixedly installed with a double base connecting frame (32) and a four base connecting frame (33). A double-port branch pipe (34) is inserted above the double base connecting frame (32). A four-port branch pipe (35) is inserted above the four base connecting frame (33). An air pump (36) is connected to the top end of the double-port branch pipe (34) and the four-port branch pipe (35). A soldering iron (37) and a limiting tube (38) are fixedly installed at the bottom of the double base connecting frame (32) and the four base connecting frame (33). A flexible hose (39) is connected to the top of the limiting tube (38).

2. The pin soldering equipment for differential mode PFC and inductive PFC according to claim 1, characterized in that: The guide post (23) is fixedly installed at the four corners of the support frame (22) and at both ends of the limiting block (26). The support frame (22) is movably installed above the four corners of the support frame (22) through the guide post (23). The limiting block (26) is mirror-symmetrically installed on the inner side of the four corners of the support frame (22) through the guide post (23).

3. The pin soldering equipment for differential mode PFC and inductive PFC according to claim 1, characterized in that: The guide post (23) and the support frame (22) are connected in a sliding manner. The transmission cylinder (24) is installed at the four corners of the bottom surface of the bracket (25) and the center of the limiting block (26), and the fixed end of the transmission cylinder (24) is fixedly connected to the support frame (22).

4. The pin soldering equipment for differential mode PFC and inductive PFC according to claim 1, characterized in that: The bracket (25) has an opening structure at the center of its top surface, and the inner wall of the opening is stepped. The bracket (25) has a vertically downward protrusion on the inner side of its bottom surface, and the limiting block (26) has an arc surface structure at the center of one side.

5. The pin soldering equipment for differential mode PFC and inductive PFC according to claim 1, characterized in that: The downward cylinder (31) is symmetrically installed on both sides of the double base connecting frame (32) and the four base connecting frame (33) with the center of the double base connecting frame (32) and the four base connecting frame (33) as the reference. The soldering iron (37) under the double base connecting frame (32) is mirror symmetrically installed and staggered front and back.

6. The pin soldering equipment for differential mode PFC and inductive PFC according to claim 1, characterized in that: The soldering iron (37) below the four-base connecting frame (33) points to the central axis of the four-base connecting frame (33). The limiting tube (38) is installed on one side of each soldering iron (37) through the double-base connecting frame (32) and the four-base connecting frame (33), and its end points to the end of the soldering iron (37). The branch structure of the double-port branch tube (34) and the four-port branch tube (35) passes through the bottom end of the flat plate structure at the top of the support platform (11) and points between the corresponding soldering iron (37) and the limiting tube (38).

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