Circuit board welding clamp

Abstract

The utility model relates to the technical field of circuit board welding, and particularly discloses a circuit board welding clamp which comprises a bottom plate, a placing table fixedly connected to the top of the bottom plate, a placing groove formed in the top of the placing table, a clamping rod slidably connected to the interior of the placing groove, a circuit board body arranged in the clamping rod, and a clamping groove formed in the top of the placing table. The top of the bottom plate is fixedly connected with a placing table, the top of the placing table is internally provided with a jacking assembly, the top of the bottom plate is fixedly connected with a downward pressing assembly, the top of the bottom plate is fixedly connected with a limiting assembly, the interior of the limiting assembly is rotatably connected with a limiting shaft, the exterior of the limiting shaft is fixedly connected with a gear, and the top of the limiting shaft is fixedly connected with a rotating handle. The circuit board is inserted into the clamping rod and then placed in the placement groove, the bottom of the circuit board is in contact with the L-shaped block, the pressing block of the pressing assembly is rotated to limit the top of the clamping rod in cooperation with the limiting block and the connecting plate, rotation of the circuit board is prevented, and meanwhile, the L-shaped block is jacked by the sliding rod and the spring in the limiting ring, so that the circuit board can slide in the placement table to adapt to different sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board welding technical field, concretely is a circuit board welding fixture. BACKGROUND

[0002] Circuit board, also known as printed circuit board (PCB for short), is an electronic component composed of insulating substrate, copper foil circuit, pad, via and the like, and it is an important component part indispensable in electronic equipment, used to realize the electrical connection between electronic components, by arranging various electronic components such as resistors, capacitors, chips on the circuit board, and connecting these components according to the specific circuit design by using the copper foil circuit on the circuit board, thereby forming a complete electronic circuit system.

[0003] In the circuit board manufacturing process, various electronic components need to be connected to the circuit board by welding to realize the function of the circuit, which can form a reliable electrical connection between the pins of the electronic components and the pads of the circuit board, and welding can ensure that the current can flow smoothly in the circuit, so that each electronic component can work normally, and can ensure the stability and durability of the connection to meet the use requirements of electronic equipment in different environmental conditions.

[0004] In the prior art, when welding, if the circuit board is directly placed in a plane without using a clamp to clamp the circuit board, once the circuit board shakes, it will seriously affect the welding quality, leading to problems such as virtual welding, false welding, short circuit and uneven welding, resulting in poor circuit contact, unable to work normally, even causing electrical failure; it will also reduce the welding efficiency, and the operator needs to spend more time on alignment and control of welding, and needs to rework due to quality problems, increasing workload and cost; at the same time, it will damage the circuit board and electronic components, and the shaking will cause the copper foil circuit of the circuit board to break, peel or separate from the substrate, and may also cause damage to the internal structure of the electronic components, therefore, we propose a circuit board welding fixture. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a circuit board welding fixture to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circuit board welding fixture, including a base plate, a placement platform fixedly connected to the top of the base plate, a placement groove opened on the top of the placement platform, a clamping rod slidably connected inside the placement groove, a circuit board body disposed inside the clamping rod, a slot opened on the top of the placement platform, a pushing component installed inside the placement platform, a pressing component fixedly connected to the top of the base plate, a limiting component fixedly connected to the top of the base plate, a limiting shaft rotatably connected inside the limiting component, a gear fixedly connected to the outside of the limiting shaft, a rotating handle fixedly connected to the top of the limiting shaft, a connecting rod one slidably connected inside the limiting component, a rack plate fixedly connected to the outside of the connecting rod one, a connecting rod two fixedly connected to the other side of the rack plate, a pressure plate fixedly connected to the outside of the connecting rod two, and a placement component fixedly connected to the top of the base plate.

[0007] The jacking assembly has a fixed limit ring inside, a sliding rod inside the limit ring, a connecting piece outside the sliding rod, a spring on the outside of the sliding rod, and an L-shaped block outside the sliding rod.

[0008] The slide rod is externally slidably connected to the inside of the placement platform, and the connecting piece is externally slidably connected to the inside of the placement platform.

[0009] One side of the spring is fixedly connected to the outside of the connecting piece, and the other side of the spring is fixedly connected to the outside of the limiting ring.

[0010] The top of the pressing component is fixedly connected to a connecting plate, a rotating shaft is fixedly connected inside the connecting plate, a limit block is rotatably connected to the outside of the rotating shaft, and a pressing block is rotatably connected to the outside of the limit block.

[0011] The gear and rack are meshed, and the pressure plate is slidably connected to the inside of the base plate.

[0012] The placement component has a column installed inside, and a placement ring is fixedly connected to the outside of the column.

[0013] This utility model has at least the following beneficial effects:

[0014] When using this invention, the circuit board body is inserted into the clamping rod and placed in the placement slot, with its bottom contacting the L-shaped block. Rotating the lowering block of the pressing assembly, in conjunction with the limiting block and connecting plate, limits the top of the clamping rod, preventing the circuit board from rotating. At the same time, the sliding rod and spring inside the limiting ring push the L-shaped block, allowing the circuit board to slide within the placement platform to adapt to different sizes. Rotating the handle drives the gear, causing the meshing rack plate and connecting rod to slide, allowing the pressure plate to limit the circuit board away from the clamping rod. This achieves a stable and convenient fixation of the circuit board, providing a stable foundation for welding work and improving welding accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the downward pressing component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the clamping rod structure of this utility model;

[0019] In the diagram: 1. Base plate; 2. Placement platform; 201. Placement slot; 202. Clamping rod; 203. Circuit board body; 204. Slot; 3. Pushing assembly; 301. Limiting ring; 302. Sliding rod; 303. Connecting piece; 304. Spring; 305. L-shaped block; 4. Pressing assembly; 401. Connecting plate; 402. Rotating shaft one; 403. Limiting block; 404. Pressing block; 5. Limiting assembly; 501. Limiting shaft; 502. Gear; 503. Rotating handle; 504. Connecting rod one; 505. Rack plate; 506. Connecting rod two; 507. Pressure plate; 6. Placement assembly; 601. Column; 602. Placement ring. 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 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.

[0021] Example 1

[0022] Please see Figures 1 to 4This utility model provides a technical solution: a circuit board welding fixture, including a base plate 1, a placement platform 2 fixedly connected to the top of the base plate 1, a placement groove 201 opened on the top of the placement platform 2, a clamping rod 202 slidably connected inside the placement groove 201, a circuit board body 203 disposed inside the clamping rod 202, a slot 204 opened on the top of the placement platform 2, a pushing component 3 installed inside the placement platform 2, a pressing component 4 fixedly connected to the top of the base plate 1, a limiting component 5 fixedly connected to the top of the base plate 1, a limiting shaft 501 rotatably connected inside the limiting shaft 501, a gear 502 fixedly connected to the outside of the limiting shaft 501, the gear 502 and the rack plate 505 being meshed, a pressure plate 507 slidably connected to the outside of the base plate 1, a rotating handle 503 fixedly connected to the top of the limiting shaft 501, and a sliding handle 503 inside the limiting component 5. A connecting rod 504 is connected to the circuit board body 203. A rack plate 505 is fixedly connected to the outside of the connecting rod 504. A connecting rod 506 is fixedly connected to the other side of the rack plate 505. A pressure plate 507 is fixedly connected to the outside of the connecting rod 506. A placement component 6 is fixedly connected to the top of the base plate 1. When the operator rotates the rotating handle 503, the rotating handle 503 drives the limiting shaft 501 to rotate. The gear 502 on the limiting shaft 501 rotates accordingly. The gear 502 meshes with the rack plate 505, causing the rack plate 505 to slide within the limiting component 5 via the connecting rod 504. The rack plate 505 then drives the pressure plate 507 to move via the connecting rod 506. The pressure plate 507 effectively limits the side of the circuit board body 203 away from the clamping rod 202. This completes the all-round fixation of the circuit board body 203, preparing it for the welding work.

[0023] The jacking assembly 3 is internally fixedly connected to a limiting ring 301. A sliding rod 302 is slidably connected inside the limiting ring 301. The sliding rod 302 is externally slidably connected to the inside of the placement platform 2. A connecting piece 303 is externally slidably connected to the inside of the placement platform 2. A connecting piece 303 is fixedly connected to the outside of the sliding rod 302. A spring 304 is sleeved on the outside of the sliding rod 302. One side of the spring 304 is fixedly connected to the outside of the connecting piece 303, and the other side of the spring 304 is fixedly connected to the outside of the limiting ring 301. An L-shaped block 305 is fixedly connected to the outside of the sliding rod 302. After the bottom of the circuit board body 203 is placed on top of the L-shaped block 305, the jacking assembly 3 starts to work. Due to the action of the sliding rod 302 and the spring 304 inside the limiting ring 301, the spring 304 applies elastic force to the sliding rod 302 through the connecting piece 303. The sliding rod 302 drives the L-shaped block 305 and the circuit board body 203 to slide inside the placement platform 2, thereby adapting to circuit board bodies 203 of different sizes and ensuring stable support for the circuit board during soldering.

[0024] A connecting plate 401 is fixedly connected to the top of the pressing component 4. A rotating shaft 402 is fixedly connected inside the connecting plate 401. A limiting block 403 is rotatably connected to the outside of the rotating shaft 402. A pressing block 404 is rotatably connected to the outside of the limiting block 403. When the operator rotates the pressing block 404 on the top of the pressing component 4, the pressing block 404 rotates around the rotating shaft 402 and, with the cooperation of the limiting block 403, rotates to the top of the clamping rod 202, limiting the top of the clamping rod 202 and preventing the circuit board body 203 from rotating, thus completing the initial fixing of the circuit board.

[0025] The placement component 6 has a column 601 installed inside, and a placement ring 602 is fixedly connected to the outside of the column 601. When welding is not needed, the operator can place the welding gun on the placement ring 602 outside the column 601 connected to the top of the placement component 6. The structural design of the placement ring 602 and the column 601 allows the welding gun to be suspended in the air, avoiding collision damage that may be caused by placing the welding gun randomly on the workbench. It also makes it easy for the operator to quickly retrieve the welding gun when needed, improving the convenience and efficiency of welding work.

[0026] The working principle of this utility model is as follows: When it is necessary to solder the circuit board body 203, simply insert the circuit board body 203 into the clamping rod 202, and then place the clamping rod 202 into the placement slot 201. The bottom of the circuit board body 203 contacts the top of the L-shaped block 305. At this time, rotate the pressing block 404 at the top of the pressing assembly 4 so that the pressing block 404, together with the limiting block 403 and the connecting plate 401, rotates at the top of the pressing assembly 4. Then, the pressing block 404 limits the top of the clamping rod 202 to prevent the circuit board body 203 from rotating.

[0027] Then, after the bottom of the circuit board body 203 is placed on top of the L-shaped block 305, the slide bar 302 and spring 304 inside the limiting ring 301 will push the L-shaped block 305, so that the L-shaped block 305 slides inside the placement platform 2 in conjunction with the circuit board body 203, thus adapting to different sizes of the circuit board body 203. Then, rotate the rotating handle 503, so that the rotating handle 503 rotates in conjunction with the rotating handle 502. When the gear 502 rotates, it drives the meshing rack plate 505 and the connecting rod 506 to slide, so that the pressure plate 507 effectively limits the side of the circuit board body 203 away from the clamping rod 202, and then the soldering work can be carried out.

[0028] Example 2

[0029] Please see Figures 1 to 2In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that when welding is being performed, if the welding torch is not needed, it can be placed on the placement ring 602 outside the column 601 connected to the top of the placement component 6, so that the welding torch is suspended in the air and thus easy to use.

[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 circuit board soldering fixture, comprising a base plate (1), characterized in that: A placement platform (2) is fixedly connected to the top of the base plate (1). A placement groove (201) is provided on the top of the placement platform (2). A clamping rod (202) is slidably connected inside the placement groove (201). A circuit board body (203) is provided inside the clamping rod (202). A slot (204) is provided on the top of the placement platform (2). A pushing component (3) is installed inside the placement platform (2). A pressing component (4) is fixedly connected to the top of the base plate (1). A limiting component (5) is fixedly connected to the top of the base plate (1). The limiting component (5) rotates inside. A limiting shaft (501) is connected, a gear (502) is fixedly connected to the outside of the limiting shaft (501), a rotating handle (503) is fixedly connected to the top of the limiting shaft (501), a connecting rod (504) is slidably connected inside the limiting assembly (5), a rack plate (505) is fixedly connected to the outside of the connecting rod (504), a connecting rod (506) is fixedly connected to the other side of the rack plate (505), a pressure plate (507) is fixedly connected to the outside of the connecting rod (506), and a placement assembly (6) is fixedly connected to the top of the base plate (1).

2. The circuit board soldering fixture according to claim 1, characterized in that: The jacking assembly (3) is internally fixedly connected to a limiting ring (301), and a sliding rod (302) is internally slidably connected to the limiting ring (301). A connecting piece (303) is externally fixedly connected to the sliding rod (302), a spring (304) is sleeved on the outside of the sliding rod (302), and an L-shaped block (305) is externally fixedly connected to the outside of the sliding rod (302).

3. The circuit board soldering fixture according to claim 2, characterized in that: The slide bar (302) is externally slidably connected to the inside of the placement platform (2), and the connecting piece (303) is externally slidably connected to the inside of the placement platform (2).

4. A circuit board soldering fixture according to claim 2, characterized in that: One side of the spring (304) is fixedly connected to the outside of the connecting piece (303), and the other side of the spring (304) is fixedly connected to the outside of the limiting ring (301).

5. A circuit board soldering fixture according to claim 1, characterized in that: The top of the pressing component (4) is fixedly connected to a connecting plate (401), and a rotating shaft (402) is fixedly connected inside the connecting plate (401). A limiting block (403) is rotatably connected to the outside of the rotating shaft (402), and a pressing block (404) is rotatably connected to the outside of the limiting block (403).

6. A circuit board soldering fixture according to claim 1, characterized in that: The gear (502) and the rack plate (505) are meshed together, and the pressure plate (507) is externally slidably connected to the inside of the base plate (1).

7. A circuit board soldering fixture according to claim 1, characterized in that: The placement component (6) has a column (601) installed inside, and a placement ring (602) is fixedly connected to the outside of the column (601).

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