A circuit board pin soldering fixture

Abstract

This utility model discloses a circuit board pin header soldering technology, specifically a circuit board pin header soldering fixture. The fixture includes a supporting base plate, inside which a circuit board body is placed. A limiting mechanism is provided on the outer side of the circuit board body. The limiting mechanism includes a rubber post tightly fitted to the upper side of the circuit board body. A limiting post is fixedly installed at the upper end of the rubber post, and a first spring is provided on the outer side of the limiting post. The lower side of the first spring is fixedly connected to the rubber post, and a supporting plate is fixedly connected to the upper side of the first spring. This utility model, by setting a limiting mechanism, uses mechanical components to fix the pin header and circuit board during soldering, effectively solving the drawbacks of manual hand-held fixing and greatly improving the accuracy of pin header and circuit board soldering. Simultaneously, the fixing mechanism, after the pin header and circuit board are docked and fixed, can limit the entire fixture, effectively ensuring the stability of the entire fixture during soldering.

Description

Technical Field

[0001] This utility model relates to the field of circuit board pin header soldering technology, specifically a circuit board pin header soldering fixture. Background Technology

[0002] A circuit board header is a type of electronic connector, mainly used for signal or current transmission between circuit boards. Its core function is to achieve circuit connection through a pin-like structure. In order to ensure reliable transmission between signal and current components and the circuit board, soldering is usually used to make the header and the circuit board form a stable metal connection.

[0003] However, in the existing pin header and circuit board soldering process, the pin header and circuit board need to be manually connected. One hand needs to hold the connection between the pin header and the circuit board, while the other hand solders the connection. During the soldering process, the connection between the pin header and the circuit board may shift, which will affect the accuracy of the pin header and circuit board soldering. At the same time, manual soldering will also reduce the efficiency of pin header and circuit board soldering. Utility Model Content

[0004] The purpose of this invention is to provide a circuit board pin header soldering fixture to solve the problems in the prior art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A circuit board pin soldering fixture includes a support base plate, a circuit board body is placed inside the support base plate, and a limit mechanism is provided on the outside of the circuit board body.

[0007] The limiting mechanism includes rubber pillars that are tightly fitted to the upper side of the circuit board body. A limiting post is fixedly installed at the upper end of the rubber pillar. A first spring is provided on the outer side of the limiting post. The lower side of the first spring is fixedly connected to the rubber pillar. A support plate is fixedly connected to the upper side of the first spring. The limiting posts are slidably arranged in multiple sets inside the support plate. Each of the four corners of the support plate has a locking groove. A locking post is locked inside the locking groove. The locking post is fixedly installed on the left and right sides inside the support base plate. A support block is provided inside the locking post. The support block is symmetrically fixed inside the support base plate in two places. A limiting plate is installed at the upper end of the support block. The limiting plate is U-shaped. A rotating block is rotatably arranged on the outer side of each of the two support blocks. A limiting block is installed at the upper end of the rotating block. A concave groove is formed between the limiting block and the upper side of the limiting plate. The concave groove is locked inside the support plate. The lower inner side of the limiting plate is fixedly connected to the upper end of a second spring. The lower end of the second spring is fixedly connected to the support block. The second spring is bent.

[0008] Preferably, the circuit board body has multiple sets of pin header holes inside, and soldering grooves are provided on the lower side of the pin header holes. The soldering grooves are formed in multiple sets inside the support base plate.

[0009] Preferably, the support base plate has a fixing mechanism symmetrically arranged on the left and right sides inside. The fixing mechanism includes a groove symmetrically opened inside the support base plate. A fixing shaft is fixedly installed inside the groove. A movable block is symmetrically slidably arranged on the outside of the fixing shaft. A threaded hole is opened on the upper side inside the movable block.

[0010] Preferably, the movable block is rotatably connected to a support rod, and the support rod is centrally symmetrically arranged on the outside of the movable block.

[0011] Preferably, the inner side of the movable block is tightly fitted with the intermediate block, the intermediate block is symmetrically fixedly installed in the middle of the slot cavity, and the inner side of the movable block and the middle of the intermediate block are threadedly connected by a first threaded rod.

[0012] Preferably, two second threaded rods are symmetrically arranged at the upper ends of the left and right sides of the support base plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model uses a limiting mechanism and mechanical parts to fix the pin header and circuit board during welding, which effectively solves the drawbacks of manual hand-held fixing and can greatly improve the welding accuracy of the pin header and circuit board.

[0015] 2. By setting a fixing mechanism, this utility model can limit the entire fixture after the pin header and circuit board are docked and fixed, which can effectively ensure the stability of the entire fixture during welding. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a frontal perspective view of the overall structure of the welding fixture of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall bottom-view perspective structure of the welding fixture of this utility model;

[0019] Figure 3 This is a perspective view of the connection structure of the welding fixture support block, limiting plate and rotating block of this utility model;

[0020] Figure 4 This is a perspective view of the connection structure of the welding fixture support plate, the locking groove, and the rubber column of this utility model.

[0021] Figure 5 This is a cross-sectional structural diagram of the welding fixture fixing mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the fixing mechanism of the welding fixture of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Support base plate; 2. Circuit board body; 3. Pin header socket; 4. Soldering groove; 5. Limiting mechanism; 51. Engaging post; 52. Support plate; 53. Engaging groove; 54. Rubber post; 55. Limiting post; 56. First spring; 57. Support block; 58. Limiting plate; 59. Rotating block; 511. Limiting block; 512. Second spring; 6. Fixing mechanism; 61. Groove; 62. Moving block; 63. Support rod; 64. Fixed shaft; 65. Intermediate block; 66. First threaded rod; 67. Second threaded rod. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] To address the problems existing in the prior art, this embodiment provides the following technical solution: a circuit board pin header soldering fixture, comprising a support base plate 1 and a circuit board body 2. The circuit board body 2 is placed inside the support base plate 1, and a limiting mechanism 5 is provided on the outer side. The limiting mechanism 5 can limit the circuit board body 2, ensuring that the circuit board body 2 does not shift position during soldering with the pin header. Simultaneously, a fixing mechanism 6 is provided, which is hidden inside the support base plate 1 on the left and right sides, without affecting the overall operation of the equipment. After limiting the circuit board body 2 and the pin header, the fixing mechanism 6 can limit the entire equipment, ensuring the stability of the circuit board body 2 during soldering with the pin header.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, when the circuit board body 2 needs to be soldered with the pin header, multiple sets of pin header sockets 3 are provided on the inner side of the circuit board body 2. The pin header can be inserted into the pin header socket 3 for docking. After the pin header is inserted, the circuit board body 2 can be placed into the support base plate 1. Multiple sets of soldering grooves 4 are opened inside the support base plate 1. When the circuit board body 2 is placed into the support base plate 1, the multiple sets of pin header sockets 3 correspond one-to-one with the inside of the soldering grooves 4 opened inside the support base plate 1, which facilitates the subsequent soldering machine to solder the pin header and the circuit board body 2 row by row through the soldering grooves 4.

[0028] After the circuit board body 2 is placed inside the support base plate 1, the support plate 52 can be placed on the upper side of the support base plate 1. The four corners of the support plate 52 are provided with locking grooves 53, which are then engaged with the locking posts 51 symmetrically installed on the upper side of the support base plate 1.

[0029] Meanwhile, a limiting plate 58 is provided inside the locking column 51. The limiting plate 58 is U-shaped and installed on the upper side of the support block 57. The support block 57 and the limiting plate 58 are symmetrically arranged on the upper side of the middle of the support base plate 1. The lower end of the support block 57 is fixedly connected to the support base plate 1. Rotating blocks 59 are provided on the outer side of the other two limiting plates 58. Rotating parts are provided on the lower side of the rotating blocks 59. The front and rear ends of the rotating parts are located in the grooves provided on both sides of the outer side of the support block 57, which can make the rotating blocks 59 and the support blocks 57 form a stable rotating connection. The upper end of the second spring 512 is fixedly connected to the lower inner side of the rotating block 59, and the lower end of the second spring 512 is fixedly connected to the support block 57. The support block 57 is bent. The upper end of the rotating block 59 is provided with a limiting block 511, which forms a groove with the upper end of the limiting plate 58.

[0030] When the engaging grooves 53 inside the four corners of the support plate 52 engage with the engaging posts 51, the lower ends of the left and right sides of the middle of the support plate 52 will slide into contact with the limiting blocks 511. The support plate 52 will move downwards along the slope of the upper end of the limiting blocks 511, pushing the rotating block 59 and the limiting blocks 511 to rotate outwards. At this time, the second spring 512 installed between the rotating block 59 and the support block 57 below the limiting blocks 511 will be stretched outwards. When the support plate 52 moves downwards... When the lateral movement ends and the contact with the inclined surface of the limiting block 511 ends, the lower ends of the left and right sides of the middle of the support plate 52 will contact the upper end of the limiting plate 58. At this time, the second spring 512 will rebound inward, and the rotating block 59 and the limiting block 511 will also rotate inward. At this time, the lower side of the limiting block 511 will abut against the upper ends of the left and right sides of the middle of the support plate 52, so that the left and right sides of the middle of the support plate 52 can be firmly limited in the groove between the limiting block 511 and the limiting plate 58.

[0031] Meanwhile, multiple sets of limiting posts 55 are set inside the support plate 52. A first spring 56 is set on the outside of the limiting post 55, and a rubber post 54 is set below it. The upper side of the first spring 56 is fixedly connected to the lower side of the support plate 52, and the lower side of the first spring 56 is fixedly connected to the upper side of the rubber post 54. That is, when the left and right sides of the middle part of the support plate 52 are engaged between the limiting block 511 and the limiting plate 58, the limiting posts 55 and the rubber post 54 set inside the support plate 52 will move up and down inside the support plate 52 through the first spring 56 set on the outside. When the left and right sides of the middle part of the support plate 52 are fully engaged in the groove between the limiting block 511 and the limiting plate 58, the rubber post 54 installed on the lower side of the limiting post 55 will contact the upper side of the circuit board body 2, thereby limiting the circuit board body 2. The actual limiting force of the first spring 56 does not need to be too large. This method is sufficient to meet the stability during welding.

[0032] After the circuit board body 2 is positioned, in order to ensure the stability of the soldering between the circuit board body 2 and the pin header, a slot 61 is opened on the left and right sides inside the support base plate 1. A fixed shaft 64 is fixedly installed inside the slot 61. A moving block 62 is symmetrically slidably arranged on the outside of the fixed shaft 64. A support rod 63 is rotatably arranged on the outside of the moving block 62. The support rod 63 is centrally symmetrically arranged on the outside of the moving block 62. The middle block 65, which is symmetrically installed on the left and right sides of the middle of the slot 61, is tightly fitted on the inside of the support rod 63. Threaded holes are opened in the middle of the middle block 65 and the inside of the support rod 63. A first threaded rod 66 is inserted through the threaded hole for positioning.

[0033] The first threaded rod 66 can be unscrewed and pulled out. The inner end of the support rod 63 can be grasped and pulled outward. This allows the movable block 62, which is rotatably connected to the outside of the support rod 63, to slide on the outside of the fixed shaft 64. The movable block 62 can slide inward and will slide to fit tightly against the front and rear sides of the outside of the middle block 65. At this time, the inner end of the support rod 63 will be pulled to the left and right sides of the outside of the support base plate 1. Then the first threaded rod 66 can be inserted into the threaded hole opened on the inside of the support rod 63 and the threaded hole opened on the operating table and tightened to limit its position.

[0034] In addition, two threaded holes are symmetrically opened on the left and right sides of the upper end of the support base plate 1. The second threaded rod 67 is set inside the threaded holes. When the moving block 62 is ready to be adjusted, the second threaded rod 67 can be unscrewed and pulled out first. After the moving block 62 is moved and adjusted to the front and rear sides of the middle block 65, the threaded hole is also opened on the upper side of the moving block 62. The threaded hole will fit with the threaded holes opened on the left and right sides of the upper end of the support base plate 1. Then the second threaded rod 67 can be inserted into the threaded holes of both to limit the moving block 62, which effectively enhances the stability of the entire device. After the entire device is fixed, the inserted pins and circuit board body 2 can be soldered row by row from the soldering groove 4 using a welding machine.

[0035] The working principle of this circuit board pin header soldering fixture is as follows: Multiple sets of pin header sockets 3 are opened inside the circuit board body 2. The pins to be soldered to the circuit board body 2 can be inserted into the pin header sockets 3. Then, the circuit board body 2, after the pin headers and circuit board body 2 are connected, is placed inside the support base plate 1, so that the pin header sockets 3 correspond one by one with the multiple sets of soldering grooves 4 opened inside the support base plate 1. Then, the circuit board body 2 is limited by the limiting mechanism 5 set on the outside of the circuit board body 2. After the circuit board body 2 is limited, the fixing mechanism 6 set on the left and right sides inside the support base plate 1 can further limit the overall equipment and the soldering operation table, which can effectively enhance the stability of the overall equipment. Then, the soldering machine can be used to solder the inserted pin headers and circuit board body 2 row by row through the soldering grooves 4.

[0036] The foregoing has shown and described the basic principles, 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 embodiments and descriptions in the specification are merely illustrative of the principles of this 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 the claimed utility model.

Claims

1. A circuit board pin header soldering fixture, characterized in that: It includes a support base plate (1), a circuit board body (2) is placed inside the support base plate (1), and a limit mechanism (5) is provided on the outside of the circuit board body (2); The limiting mechanism (5) includes a rubber post (54) that is tightly attached to the upper side of the circuit board body (2). A limiting post (55) is fixedly installed at the upper end of the rubber post (54). A first spring (56) is provided on the outer side of the limiting post (55). The lower side of the first spring (56) is fixedly connected to the rubber post (54). A support plate (52) is fixedly connected to the upper side of the first spring (56). The limiting post (55) is slidably arranged in multiple sets inside the support plate (52). The four corners of the support plate (52) are provided with engagement grooves (53). Engaging posts (51) are engaged inside the engagement grooves (53). The engaging posts (51) are fixedly installed on the left and right sides inside the support base plate (1). The inner side of the engaging post (51) is... The support block (57) is provided in the support base plate (1) in two symmetrical positions. The upper end of the support block (57) is equipped with a limiting plate (58), which is U-shaped. Rotating blocks (59) are rotatably provided on the outer side of the two support blocks (57). A limiting block (511) is installed on the upper end of the rotating block (59). A concave groove is formed between the limiting block (511) and the upper side of the limiting plate (58). The inside of the concave groove is engaged with the support plate (52). The lower inner side of the limiting plate (58) is fixedly connected to the upper end of the second spring (512). The lower end of the second spring (512) is fixedly connected to the support block (57). The second spring (512) is bent.

2. The circuit board pin header soldering fixture according to claim 1, characterized in that, The circuit board body (2) has multiple sets of pin header holes (3) inside, and soldering grooves (4) are provided on the lower side of the pin header holes (3). The soldering grooves (4) are formed in multiple sets inside the support base plate (1).

3. The circuit board pin header soldering fixture according to claim 2, characterized in that, The support base plate (1) is symmetrically provided with fixing mechanisms (6) on the left and right sides inside. The fixing mechanism (6) includes a groove (61) symmetrically opened inside the support base plate (1). A fixing shaft (64) is fixedly installed inside the groove (61). A moving block (62) is symmetrically slidably arranged on the outside of the fixing shaft (64). A threaded hole is opened on the upper side inside the moving block (62).

4. A circuit board pin header soldering fixture according to claim 3, characterized in that, The movable block (62) is rotatably connected to a support rod (63), and the support rod (63) is centrally symmetrically arranged outside the movable block (62).

5. A circuit board pin header soldering fixture according to claim 4, characterized in that, The inner side of the movable block (62) is tightly fitted with the middle block (65), and the middle block (65) is symmetrically fixed in the middle of the slot cavity (61). The inner side of the movable block (62) and the middle of the middle block (65) are threadedly connected to the first threaded rod (66).

6. A circuit board pin header soldering fixture according to claim 3, characterized in that, Two second threaded rods (67) are symmetrically arranged on the upper ends of the left and right sides of the support base plate (1).

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