Circuit board positioning and fixing jig

Abstract

The utility model relates to circuit board positioning technical field, and disclose a kind of circuit board positioning fixture, including base, fixed side plate is fixedly connected in base front side upper end, movable side plate is slidably connected in base rear side upper end, dovetail groove is opened in base upper end surface, movable side plate lower end is fixedly connected with dovetail block, dovetail block is located inside dovetail groove and is slidably connected, fixed side plate and movable side plate upper end are all fixedly connected with connecting rod, first fixing is provided in the left side of two connecting rods.The utility model adjusts the distance between movable side plate and fixed side plate, to adapt to circuit board of different size, circuit board is placed on base, so that its two sides are respectively attached with fixed side plate and movable side plate, then first fixing and second fixing are used to clamp and fix circuit board, ensure that circuit board remains stable during patching, avoid the problems such as component misregistration or false welding caused by position deviation, thereby effectively improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of circuit board positioning technology, and in particular to a circuit board positioning and fixing fixture. Background Technology

[0002] In modern electronics manufacturing, surface mount technology (SMT) is a widely used process that assembles electronic products by precisely mounting electronic components onto circuit boards. SMT is characterized by high efficiency, precision, and automation, significantly improving production efficiency and product quality. However, the positioning and securing of the circuit board is a crucial step in the SMT process. Only by ensuring the circuit board remains stable and precisely positioned during SMT can electronic components be accurately mounted in their designated locations, thus avoiding quality issues such as component misalignment and poor soldering.

[0003] Currently, existing circuit board positioning plates have many shortcomings when fixing circuit boards of different sizes: due to the limitations of their structural design, they cannot quickly adapt to circuit boards of various sizes, resulting in cumbersome and time-consuming positioning and fixing operations, which greatly reduces production efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a circuit board positioning and fixing fixture to solve the problem that the current circuit board fixing method cannot quickly adapt to circuit boards of various sizes, resulting in cumbersome and time-consuming positioning and fixing operations, which greatly reduces production efficiency.

[0005] This utility model provides a circuit board positioning and fixing fixture, including a base, a fixed side plate fixedly connected to the upper front side of the base, a movable side plate slidably connected to the upper rear side of the base, a dovetail groove formed on the upper surface of the base, a dovetail block fixedly connected to the lower end of the movable side plate, the dovetail block being located inside the dovetail groove and slidably connected thereto, connecting rods fixedly connected to the upper ends of both the fixed side plate and the movable side plate, a first fixing member provided on the left side of the two connecting rods, and a second fixing member provided on the right side of the two connecting rods, the first fixing member and the second fixing member cooperating with each other to fix the circuit board.

[0006] Preferably, a threaded rod is fixedly connected to the rear end of the fixed side plate, and the rear end of the threaded rod passes through the movable side plate and is threadedly connected to it.

[0007] Preferably, the first fixing member includes a fixing block, and a pair of fixing blocks are provided, both of which are fixedly connected to the left side wall of the connecting rod. The upper end surface of the fixing block near the center point of the base is provided with a first fixing groove.

[0008] Preferably, the second fixing component includes a movable block and a positioning bolt. A pair of movable blocks are provided, and both are slidably connected to the right side wall of the connecting rod. A second fixing groove is formed on the upper end face of the movable block near the center point of the base. A limiting block is fixedly connected inside the movable block. A limiting groove is formed on the side wall of the connecting rod. The limiting block is located inside the limiting groove and is slidably connected thereto. A fixing hole is formed on the upper end face of the movable block. The fixing hole passes through the limiting block. The positioning bolt is threadedly connected inside the fixing hole. The lower end face of the positioning bolt abuts against the inner wall of the limiting groove.

[0009] Preferably, the inner walls of both the first fixing groove and the second fixing groove are covered with rubber material.

[0010] Preferably, a connecting block is fixedly connected to the lower end of the movable block. A threaded hole is opened on the front end face of the connecting block located on the front side of the base, and a through hole is opened on the rear end face of the connecting block located on the rear side of the base. A guide rod is slidably connected inside the through hole. A threaded groove is opened on the front side wall of the guide rod, and the threaded groove and the threaded hole are connected by threads.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting a fixed side plate and a movable side plate, and cooperating with a threaded rod, can quickly adjust the position of the movable side plate to adapt to circuit boards of different sizes, making the positioning and fixing of circuit boards more flexible and convenient, greatly improving production efficiency, and solving the problem that traditional positioning plates cannot quickly adapt to circuit boards of various sizes.

[0012] 2. This utility model achieves precise fixing of the circuit board through the cooperation of the first fixing member and the second fixing member. The inner walls of the first fixing groove and the second fixing groove are covered with rubber material, which can effectively prevent the circuit board from being damaged during the fixing process. At the same time, it increases the friction and ensures that the circuit board remains stable during the surface mount process, avoiding quality problems such as component misalignment and poor soldering, and significantly improving the assembly accuracy and quality of the product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the movable side panel of this utility model; Figure 3 This is an exploded view of the second fixing component of this utility model; Figure 4 This is an exploded structural diagram of the guide rod and connecting block of this utility model.

[0014] Numbering on the map: 1. Base; 11. Dovetail groove; 12. Fixed side plate; 13. Movable side plate; 131. Dovetail block; 2. Connecting rod; 21. Limiting groove; 3. First fixing component; 31. Fixing block; 311. First fixing groove; 4. Second fixing component; 41. Moving block; 411. Second fixing groove; 412. Fixing hole; 42. Connecting block; 421. Through hole; 422. Threaded hole; 43. Positioning bolt; 44. Limiting block; 45. Guide rod; 451. Threaded groove; 5. Threaded rod. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In this specification, "multiple" refers to two or more.

[0017] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0018] Reference Figures 1-4As shown, this utility model embodiment provides a circuit board positioning and fixing fixture, including a base 1. A fixed side plate 12 is fixedly connected to the upper front end of the base 1, and a movable side plate 13 is slidably connected to the upper rear end of the base 1. A dovetail groove 11 is formed on the upper surface of the base 1. A dovetail block 131 is fixedly connected to the lower end of the movable side plate 13. The dovetail block 131 is located inside the dovetail groove 11 and slidably connected thereto. Connecting rods 2 are fixedly connected to the upper ends of both the fixed side plate 12 and the movable side plate 13. A first fixing member 3 is provided on the left side of the two connecting rods 2, and a second fixing member 3 is provided on the right side of the two connecting rods 2. Part 4, the first fixing part 3 and the second fixing part 4 cooperate to fix the circuit board; during operation, by adjusting the distance between the movable side plate 13 and the fixed side plate 12 to accommodate circuit boards of different sizes, the circuit board is placed on the base 1, so that its two sides are respectively attached to the fixed side plate 12 and the movable side plate 13. Then, the first fixing part 3 and the second fixing part 4 are used to clamp and fix the circuit board, ensuring that the circuit board remains stable during the placement process, avoiding problems such as component misalignment or poor soldering caused by positional displacement, thereby effectively improving production efficiency and product quality.

[0019] In a further embodiment, refer to Figure 1 The rear end of the fixed side plate 12 is fixedly connected to a threaded rod 5, and the rear end of the threaded rod 5 passes through the movable side plate 13 and is threadedly connected to it.

[0020] In this embodiment, by rotating the threaded rod 5, the moving distance of the movable side plate 13 can be precisely controlled, thereby achieving rapid positioning and clamping of circuit boards of different sizes. This not only improves the flexibility and adaptability of circuit board positioning, but also ensures the stability and reliability of the positioning process, further optimizing the fixing effect of the circuit board.

[0021] In a further embodiment, refer to Figures 2-4 The first fixing member 3 includes a fixing block 31. A pair of fixing blocks 31 are provided and are fixedly connected to the left side wall of the connecting rod 2. The upper end surface of the fixing block 31 near the center point of the base 1 is provided with a first fixing groove 311. The second fixing component 4 includes a movable block 41 and a positioning bolt 43. A pair of movable blocks 41 are provided, and both are slidably connected to the right side wall of the connecting rod 2. A second fixing groove 411 is opened on the upper end face of the movable block 41 near the center point of the base 1. A limiting block 44 is fixedly connected inside the movable block 41. A limiting groove 21 is opened on the side wall of the connecting rod 2. The limiting block 44 is located inside the limiting groove 21 and is slidably connected to it. A fixing hole 412 is opened on the upper end face of the movable block 41. The fixing hole 412 passes through the limiting block 44. The fixing hole 412 is threadedly connected to the positioning bolt 43. The lower end face of the positioning bolt 43 abuts against the inner wall of the limiting groove 21. The inner walls of both the first fixing groove 311 and the second fixing groove 411 are covered with rubber material.

[0022] In this embodiment, the structure of the first fixing member 3 and the second fixing member 4 achieves precise fixing and protection of the circuit board. The cooperative design of the first fixing groove 311 and the second fixing groove 411 can adapt to circuit boards of different widths, and the rubber material covering effectively prevents the circuit board from being scratched or worn during the fixing process, while increasing friction to ensure the stability of the circuit board during the mounting process. In addition, the sliding connection between the moving block 41 and the limiting block 44 and the fastening design of the positioning bolt 43 allow the second fixing member 4 to be flexibly adjusted and fixed according to the actual size of the circuit board, further improving the versatility and reliability of the fixture. This not only improves the fixing accuracy of the circuit board, but also effectively avoids component misalignment or poor soldering caused by unstable fixing, significantly improving the assembly quality and production efficiency of electronic products.

[0023] In a further embodiment, refer to Figure 4 The lower end of the movable block 41 is fixedly connected to the connecting block 42. The front end face of the connecting block 42 located on the front side of the base 1 is provided with a threaded hole 422, and the rear end face of the connecting block 42 located on the rear side of the base 1 is provided with a through hole 421. A guide rod 45 is slidably connected inside the through hole 421. A threaded groove 451 is provided on the front side wall of the guide rod 45, and the threaded groove 451 and the threaded hole 422 are connected by threads.

[0024] In this embodiment, two moving blocks 41 are connected to each other by a guide rod 45. When the position of the moving blocks 41 needs to be adjusted, only one moving block 41 needs to be moved, and the other moving block 41 will move synchronously, thus eliminating the need to adjust the other moving block 41 separately and greatly improving operational efficiency. If the right side of the circuit board is not perpendicular to the fixed side plate 12, the two moving blocks 41 can be disconnected by rotating the guide rod 45, thereby allowing the position of each moving block 41 to be adjusted individually, ensuring that the second fixing groove 411 in the moving block 41 can fit tightly with the corner on the right side of the circuit board. This not only improves the flexibility and accuracy of the position adjustment of the moving blocks 41, but also enhances the structural stability of the entire fixture, making the circuit board more stable when fixed. This further improves the positioning accuracy and reliability of the circuit board during the surface mount production process, effectively avoiding circuit board offset or damage caused by fixture instability, thereby better meeting the requirements of modern electronic manufacturing for high-precision positioning and fixing.

[0025] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A circuit board positioning and fixing fixture, comprising a base (1), characterized in that, A fixed side plate (12) is fixedly connected to the upper front side of the base (1), and a movable side plate (13) is slidably connected to the upper rear side of the base (1). A dovetail groove (11) is provided on the upper surface of the base (1). A dovetail block (131) is fixedly connected to the lower end of the movable side plate (13). The dovetail block (131) is located inside the dovetail groove (11) and is slidably connected to it. A connecting rod (2) is fixedly connected to the upper end of both the fixed side plate (12) and the movable side plate (13). A first fixing member (3) is provided on the left side of the two connecting rods (2), and a second fixing member (4) is provided on the right side of the two connecting rods (2). The first fixing member (3) and the second fixing member (4) cooperate with each other to fix the circuit board.

2. The circuit board positioning and fixing fixture according to claim 1, characterized in that, The fixed side plate (12) is fixedly connected to a threaded rod (5) at its rear end. The rear end of the threaded rod (5) passes through the movable side plate (13) and is threadedly connected to it.

3. The circuit board positioning and fixing fixture according to claim 1, characterized in that, The first fixing member (3) includes a fixing block (31). There is a pair of fixing blocks (31), and they are both fixedly connected to the left side wall of the connecting rod (2). The upper end face of the fixing block (31) near the center point of the base (1) is provided with a first fixing groove (311).

4. The circuit board positioning and fixing fixture according to claim 1, characterized in that, The second fixing member (4) includes a moving block (41) and a positioning bolt (43). There is a pair of moving blocks (41), which are slidably connected to the right side wall of the connecting rod (2). The upper end face of the moving block (41) near the center point of the base (1) is provided with a second fixing groove (411). A limiting block (44) is fixedly connected inside the moving block (41). A limiting groove (21) is provided on the side wall of the connecting rod (2). The limiting block (44) is located inside the limiting groove (21) and is slidably connected to it. A fixing hole (412) is provided on the upper end face of the moving block (41). The fixing hole (412) passes through the limiting block (44). The fixing hole (412) is threadedly connected to the positioning bolt (43). The lower end face of the positioning bolt (43) abuts against the inner wall of the limiting groove (21).

5. A circuit board positioning and fixing fixture according to claim 3, characterized in that, The inner walls of the first fixing groove (311) and the second fixing groove (411) are both covered with rubber material.

6. A circuit board positioning and fixing fixture according to claim 4, characterized in that, The lower end of the movable block (41) is fixedly connected to a connecting block (42). The front end face of the connecting block (42) located on the front side of the base (1) is provided with a threaded hole (422). The rear end face of the connecting block (42) located on the rear side of the base (1) is provided with a through hole (421). A guide rod (45) is slidably connected inside the through hole (421). A threaded groove (451) is provided on the front side wall of the guide rod (45). The threaded groove (451) and the threaded hole (422) are connected by threads.

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