Circuit board convenient for component welding

Abstract

The invention discloses a circuit board convenient for component welding, and relates to the technical field of circuit board welding. The circuit board facilitating component welding comprises a PCB, a plurality of needle holes are formed in the top of the PCB, a fixing assembly is fixedly connected to the outer wall of the PCB, and a cutting assembly is fixedly connected to the outer wall of the fixing assembly. According to the circuit board convenient for component welding, the polyhedral prism is located at the top of the electronic component, so that the pressure spring downwards pulls the polyhedral prism through the movable column, the polyhedral prism presses the electronic component to be tightly attached to the PCB, and the PCB is turned over for gap welding; when the electronic component is welded, teeth on the convex tooth rod are clamped into gaps between protrusions arranged on the sliding block, then the position of the sliding block is fixed, the position of the polyhedral prism is fixed, then the electronic component is fixed, the welding labor is relieved, and the welding efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board welding, in particular to a circuit board which is convenient for welding components. Background Art

[0002] Printed circuit boards (PCBs) are core components of electronic devices. They consist of an insulating substrate, conductive traces, and pads. Precision circuits are formed by etching copper foil. Electrical connections between components are achieved through design, drilling, electroplating, and solder resist processes. They are widely used in computers, mobile phones, automobiles, medical equipment, and other fields, and are the foundation of the modern electronics industry. Patent application number CN202223000939.7 discloses a circuit board that facilitates component soldering, including a circuit board body with multiple groups of mounting holes formed through the circuit board body. Mounting blocks are fixedly mounted on both ends of the circuit board body, and mounting grooves are formed on the upper surfaces of the mounting blocks. Adjustment components are movably mounted within the mounting grooves. Slide rails are fixedly mounted on the bottom surfaces of the two mounting blocks, and a push plate is provided between the two slide rails. In the process of soldering the circuit board, electric soldering iron and tin wire are used to solder the pins of electronic components. When soldering, when passing the pins of the components through the circuit board, the components need to be manually placed on the circuit board for soldering. Long-term soldering will cause fatigue and reduce the welding speed. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a circuit board that is convenient for soldering components, so as to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a circuit board that is convenient for soldering components, comprising a PCB circuit board, a plurality of pinholes being provided on the top of the PCB circuit board, a fixing assembly being fixedly connected to the outer wall of the PCB circuit board, and a cutting assembly being fixedly connected to the outer wall of the fixing assembly; The fixed components include: Side guide rails, the side guide rails are fixedly connected to the outer wall of the PCB circuit board; A sliding block, the sliding block being movably connected to the outer wall of the side guide rail, and the sliding block being located at the rightmost side of the side guide rail before welding begins; The multifaceted prism is arranged on the top of the PCB circuit board. The outer wall of the multifaceted prism is a plurality of planes, which can better press the electronic components. The multifaceted prism is rotatably connected to the sliding block, which facilitates the movement of the multifaceted prism on the top of the already soldered electronic components.

[0005] Preferably, there are two side guide rails, and the two supporting legs are respectively arranged on the front and back of the PCB circuit board. The outer walls of the two side guide rails are movably connected with sliding blocks, and the bottoms of the two side guide rails are fixedly connected to two supporting legs. The supporting legs serve as support to increase the distance between the bottom surface of the PCB circuit board and the supporting surface, making it easier for the pins of electronic components to pass through the PCB circuit board.

[0006] Preferably, the two ends of the polyhedral prism are movably connected with connecting blocks, the bottoms of the two connecting blocks are fixedly connected with movable columns, the two movable columns are movably connected to the outsides of the corresponding sliding blocks, the outer walls of the movable columns are fixedly connected with compression springs, and the compression springs are fixedly connected to the corresponding sliding blocks. A connecting rod is provided on the top of the polyhedral prism, and the bottoms of the connecting rods are fixedly connected to the two connecting blocks respectively. By pulling the connecting rod, the two connecting blocks can be subjected to more uniform pulling force, thereby better allowing the polyhedral prism to move.

[0007] Preferably, the sliding block is movably connected to a convex gear rod, and both ends of the convex gear rod are movably connected to movable legs inside the corresponding side guide rails. A protrusion is provided at the bottom of the convex gear rod inside the sliding block, and the protruding teeth on the convex gear rod can be stuck in the gap between the protrusions provided on the sliding block.

[0008] Preferably, two unlocking springs are fixedly connected to the top of the convex gear rod, and the bottom of the unlocking spring is fixedly connected to the outer wall of the side guide rail. When the PCB circuit board is turned over, the movable leg becomes the load-bearing leg. Since the movable leg and the PCB circuit board are movably connected, the PCB circuit board will move downward relative to the movable leg and compress the unlocking spring.

[0009] Preferably, the cutting assembly includes a cutting plate, which is arranged at the bottom of the PCB circuit board, and both ends of the cutting plate are fixedly connected to corresponding sliding blocks respectively, and a plurality of blocking inclined plates are fixedly connected to the bottom of the cutting plate.

[0010] Preferably, the outer wall of the cutting board is provided with several cutting edges, the top of the cutting board is movably connected with a push plate, a corresponding number of limiting clamps are provided on the side of the push plate close to the cutting edge, the limiting clamps are hook-shaped to prevent the pins from sliding out when squeezed, and a guide plate is fixedly connected to the inner side of the blocking inclined plate.

[0011] Preferably, one end of the push plate is fixedly connected to a return spring, the other end of the push plate is fixedly connected to a return spring, and the return spring is fixedly connected to the outer wall of the cutting plate.

[0012] The present invention provides a circuit board that facilitates component soldering and has the following beneficial effects: 1. The circuit board that facilitates component soldering has a multifaceted prism located on top of the electronic component, so that a compression spring pulls the multifaceted prism downward through a movable column, so that the multifaceted prism presses the electronic component tightly against the PCB circuit board, and the PCB circuit board is turned over for soldering, so that the teeth on the convex tooth rod are inserted into the gaps between the protrusions provided on the sliding block, thereby fixing the position of the sliding block, fixing the position of the multifaceted prism, and then fixing the electronic component, reducing the labor of soldering and increasing the efficiency of soldering.

[0013] 2. This circuit board, which is convenient for soldering components, pulls the connecting rod to move the sliding block back and forth on the surface of the PCB circuit board, so that the sliding block drives the cutting plate to move back and forth, and the cutting plate moves back and forth with the blocking inclined plate. Since there are a large number of blocking inclined plates and the blocking inclined plates are inclined structures, they will push the air to generate airflow during the movement, and then the airflow will pass through the pinholes to quickly clean the pinholes, saving cleaning time and indirectly improving the efficiency of soldering.

[0014] 3. The circuit board that is convenient for component soldering, after the electronic components are fixed by the multi-faceted prisms, the multi-faceted prisms are located at the corresponding positions of the electronic components. Since the blocking bevel is fixedly connected to the sliding block through the cutting plate, the blocking bevel is located between the pins of the electronic components, which hinders the flow of solder, and can avoid the phenomenon of bridging between the pins during soldering, thereby reducing the probability of welding errors, and indirectly improving the welding efficiency.

[0015] 4. This circuit board is convenient for soldering components. When the pins are located inside the cutting edge, the push plate is pushed toward the reset spring so that the push plate is pushed with the push plate. The limiting card is hooked to prevent the pins from slipping out. The pins are pushed to allow the cutting edge to cut multiple pins at the same time. The cut pins will fall to the bottom of the PCB circuit board, so that the pins are cut at the same length, saving the time of cutting the pins and thus improving the efficiency of soldering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 for Figure 1 Part A in the middle is an enlarged schematic diagram of the structure of the present invention; Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle B part; Figure 4 for Figure 1 A schematic diagram of the enlarged structure of the middle C part; Figure 5 This is a schematic diagram of the back three-dimensional structure of the present invention; Figure 6 This is an enlarged structural diagram of the sliding block of the present invention; Figure 7 This is a schematic diagram of the convex gear rod structure of the present invention; Figure 8 for Figure 5 Schematic diagram of the structure of the middle D part; Figure 9 for Figure 5 Schematic diagram of the structure of the middle E part.

[0017] In the figure: 1. PCB circuit board; 2. pinhole; 3. fixing assembly; 301. side guide rail; 302. support leg; 303. sliding block; 304. movable column; 305. connecting block; 306. compression spring; 307. multifaceted prism; 308. convex tooth rod; 309. movable leg; 310. unlocking spring; 311. connecting rod; 4. cutting assembly; 401. cutting board; 402. cutting edge; 403. blocking inclined plate; 404. pushing plate; 405. limiting clamping plate; 406. pushing plate; 407. reset spring; 408. guide plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] Example 1: Please refer to Figure 1-7 The present invention provides a technical solution: a circuit board that is convenient for soldering components, comprising a PCB circuit board 1, a plurality of pinholes 2 being provided on the top of the PCB circuit board 1, a fixing component 3 being fixedly connected to the outer wall of the PCB circuit board 1, and a cutting component 4 being fixedly connected to the outer wall of the fixing component 3; The fixing component 3 includes: Side guide rails 301, which are fixedly connected to the outer wall of the PCB circuit board 1; Sliding block 303, the sliding block 303 is movably connected to the outer wall of the side guide rail 301, and the sliding block 303 is located at the rightmost side of the side guide rail 301 before welding begins; The multifaceted prism 307 is arranged on the top of the PCB circuit board 1. The outer wall of the multifaceted prism 307 is a plurality of planes, which can better press the electronic components. The multifaceted prism 307 is rotatably connected to the sliding block 303, which facilitates the movement of the multifaceted prism 307 on the top of the already soldered electronic components.

[0021] The pins of the electronic components to be soldered are passed from the top to the bottom of the PCB circuit board 1 , and the multifaceted prisms 307 are positioned on the top of the electronic components.

[0022] There are two side guide rails 301, and two supporting legs 302 are respectively arranged on the front and back of the PCB circuit board 1. The outer walls of the two side guide rails 301 are movably connected with sliding blocks 303, and the bottoms of the two side guide rails 301 are fixedly connected with two supporting legs 302.

[0023] The support legs 302 serve as a support to increase the distance between the bottom surface of the PCB circuit board 1 and the support surface, making it easier for the pins of the electronic components to pass through the PCB circuit board 1.

[0024] The two ends of the polyhedral prism 307 are movably connected to connecting blocks 305, and the bottoms of the two connecting blocks 305 are fixedly connected to movable columns 304. The two movable columns 304 are movably connected to the outsides of the corresponding sliding blocks 303. The outer walls of the movable columns 304 are fixedly connected to compression springs 306, and the compression springs 306 are fixedly connected to the corresponding sliding blocks 303. A connecting rod 311 is provided on the top of the polyhedral prism 307, and the bottoms of the connecting rod 311 are fixedly connected to the two connecting blocks 305.

[0025] The polyhedral prism 307 is movably connected to the corresponding sliding block 303 through the connecting block 305, allowing the polyhedral prism 307 to slide along the guide rails of each side guide rail 301 of the chain. The connecting rod 311 plays a role in strengthening the fixation. By pulling the connecting rod 311, the two connecting blocks 305 can be subjected to a more uniform pulling force, thereby better allowing the polyhedral prism 307 to move.

[0026] Pull the connecting rod 311 to position the polyhedral prism 307 on top of the electronic component. Since the distance from the top of the electronic component to the PCB circuit board 1 is higher than the distance from the bottom of the polyhedral prism 307 to the PCB circuit board 1, the polyhedral prism 307 will be lifted upward, and the corresponding compression spring 306 will be compressed. The compression spring 306 then pulls the polyhedral prism 307 downward through the movable column 304, so that the polyhedral prism 307 presses the electronic component tightly against the PCB circuit board 1.

[0027] The sliding block 303 is movably connected to a convex gear rod 308 , and both ends of the convex gear rod 308 are movably connected to movable legs 309 inside the corresponding side guide rails 301 . A protrusion is provided at the bottom of the convex gear rod 308 inside the sliding block 303 .

[0028] The protruding teeth on the protruding gear rod 308 can be inserted into the gaps between the protrusions provided on the sliding block 303 .

[0029] Two unlocking springs 310 are fixedly connected to the top of the convex gear rod 308, and the bottom of the unlocking spring 310 is fixedly connected to the outer wall of the side guide rail 301. When the front side of the PCB circuit board 1 is facing upward, the convex gear rod 308 will be supported by the unlocking spring 310 and will not be stuck in the raised gap on the convex gear rod 308, allowing the sliding block 303 to move freely on the outer wall of the side guide rail 301.

[0030] After the multifaceted prism 307 presses the electronic components tightly against the PCB 1, the PCB 1 is turned over. At this time, the movable legs 309 serve as the load-bearing legs. Since the movable legs 309 are movably connected to the PCB 1, the PCB 1 moves downward relative to the movable legs 309 and moves downward with the sliding block 303 via the side guide rails 301, causing the unlocking spring 310 to compress and allowing the teeth on the protruding gear rod 308 to fit into the gaps between the protrusions on the sliding block 303, thereby fixing the position of the sliding block 303 and the position of the multifaceted prism 307. This prevents the multifaceted prism 307 from moving due to erroneous operation and failing to fix the electronic components.

[0031] Example 2: Please refer to Figure 1-9 Based on the first embodiment, the present invention provides a technical solution: The cutting assembly 4 includes a cutting plate 401, which is arranged at the bottom of the PCB circuit board 1, and the two ends of the cutting plate 401 are fixedly connected to the corresponding sliding blocks 303. A number of blocking inclined plates 403 are fixedly connected to the bottom of the cutting plate 401. The blocking inclined plates 403 are made of stainless steel. Since there is a dense chromium oxide layer on the surface of the stainless steel material to block the wetting of the solder, the blocking inclined plates 403 are prevented from adhering to the solder.

[0032] Before welding, the connecting rod 311 can be pulled to move the sliding block 303 back and forth on the surface of the PCB circuit board 1, so that the sliding block 303 drives the cutting plate 401 to move back and forth, and the cutting plate 401 moves back and forth with the blocking inclined plate 403. Since there are a large number of blocking inclined plates 403 and the blocking inclined plates 403 are inclined structures, they will push the air to generate airflow during the movement, and then the airflow will pass through the pinhole 2, thereby quickly cleaning the pinhole 2.

[0033] After turning it over, use tin wire and a soldering iron to solder the pins of the electronic components to the PCB circuit board 1.

[0034] After the multifaceted prism 307 fixes the electronic component, the multifaceted prism 307 is located at the corresponding position of the electronic component. Since the blocking bevel 403 is fixedly connected to the sliding block 303 through the cutting plate 401, the blocking bevel 403 will be located between the pins of the electronic component, hindering the flow of solder and avoiding the phenomenon of bridging between the pins during welding.

[0035] The outer wall of the cutting board 401 is provided with several cutting edges 402, and a pushing plate 404 is movably connected to the top of the cutting board 401. A corresponding number of limiting clamps 405 are provided on the side of the pushing plate 404 close to the cutting edge 402. The limiting clamps 405 are hook-shaped to prevent the stitches from sliding out when they are squeezed. A guide plate 408 is fixedly connected to the inner side of the blocking inclined plate 403. The guide plate 408 guides the stitches, allowing the stitches to be located in the middle of the cutting edge 402 when the blocking inclined plate 403 moves.

[0036] After soldering is completed, the PCB circuit board 1 is turned over and the sliding block 303 is moved so that the sliding block 303 cannot move to the left. At this time, the pins of the electronic components are tightly attached to the inside of the cutting edge 402 .

[0037] One end of the push plate 404 is fixedly connected to a return spring 407 , and the other end of the push plate 404 is fixedly connected to a return spring 407 , and the return spring 407 is fixedly connected to the outer wall of the cutting plate 401 .

[0038] When the pin is located inside the cutting edge 402, the push plate 406 is pushed toward the reset spring 407, so that the reset spring 407 is compressed and the push plate 404 is pushed with the push plate 406. The limiting clamping plate 405 is hooked to prevent the pin from slipping out, pushing the pin to allow the cutting edge 402 to cut multiple pins at the same time. The cut pins will fall to the bottom of the PCB circuit board 1. After the cutting is completed, the reset spring 407 will push the push plate 404 outward to reset.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A circuit board for facilitating component soldering, comprising a PCB (1), characterized in that: The top of the PCB circuit board (1) is provided with a plurality of pinholes (2); the outer wall of the PCB circuit board (1) is fixedly connected to a fixing component (3); and the outer wall of the fixing component (3) is fixedly connected to a cutting component (4); The fixing assembly (3) comprises: A side guide rail (301), wherein the side guide rail (301) is fixedly connected to the outer wall of the PCB circuit board (1); A sliding block (303), wherein the sliding block (303) is movably connected to the outer wall of the side guide rail (301); A multifaceted prism (307) is provided on top of a PCB circuit board (1).

2. A circuit board for facilitating component soldering according to claim 1, characterized in that: Two side guide rails (301) are provided, and two supporting legs (302) are respectively provided on the front and back sides of the PCB circuit board (1); the outer walls of the two side guide rails (301) are movably connected to a sliding block (303); and the bottoms of the two side guide rails (301) are fixedly connected to the two supporting legs (302).

3. A circuit board for facilitating component soldering according to claim 1, characterized in that: The two ends of the multifaceted prism (307) are movably connected to connecting blocks (305), the bottoms of the two connecting blocks (305) are fixedly connected to movable columns (304), the two movable columns (304) are movably connected to the outsides of the corresponding sliding blocks (303), the outer walls of the movable columns (304) are fixedly connected to compression springs (306), and the compression springs (306) are fixedly connected to the corresponding sliding blocks (303), and the top of the multifaceted prism (307) is provided with a connecting rod (311), and the bottoms of the connecting rod (311) are fixedly connected to the two connecting blocks (305).

4. A circuit board for facilitating component soldering according to claim 1, characterized in that: The sliding block (303) is movably connected to a convex gear rod (308), and both ends of the convex gear rod (308) are movably connected to movable legs (309) located inside the corresponding side guide rails (301). A protrusion is provided at the bottom of the convex gear rod (308) inside the sliding block (303).

5. A circuit board for facilitating component soldering according to claim 4, characterized in that: The top of each of the convex toothed rods (308) is fixedly connected to two unlocking springs (310), and the bottom of the unlocking springs (310) is fixedly connected to the outer wall of the side guide rail (301).

6. The circuit board for facilitating component soldering according to claim 1, characterized in that: The cutting assembly (4) comprises a cutting plate (401), the cutting plate (401) being arranged at the bottom of the PCB circuit board (1), and the two ends of the cutting plate (401) being fixedly connected to corresponding sliding blocks (303), and a plurality of blocking inclined plates (403) being fixedly connected to the bottom of the cutting plate (401).

7. A circuit board for facilitating component soldering according to claim 6, characterized in that: The outer wall of the cutting plate (401) is provided with a plurality of cutting edges (402), the top of the cutting plate (401) is movably connected to a push plate (404), a corresponding number of limiting clamping plates (405) are provided on one side of the push plate (404) close to the cutting edge (402), and a guide plate (408) is fixedly connected to the inner side of the blocking inclined plate (403).

8. The circuit board for facilitating component soldering according to claim 7, characterized in that: One end of the push plate (404) is fixedly connected to a return spring (407), and the other end of the push plate (404) is fixedly connected to a return spring (407), and the return spring (407) is fixedly connected to the outer wall of the cutting plate (401).

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