Positioning jig for circuit board soldering

Abstract

This utility model belongs to the field of circuit board technology, specifically a positioning fixture for circuit board welding. It includes a support frame, and further includes: a drive assembly disposed on the outside of the support frame; a rotating wheel rotating on the inside of the support frame and connected to the drive assembly; a first transmission frame fixed to the inside of the rotating wheel; a support assembly disposed on the side adjacent to the first transmission frame; and a clamping assembly symmetrically disposed on the outside of the support assembly. This utility model provides a positioning fixture for circuit board welding. By using the drive assembly to rotate the wheel and the first transmission frame, the support assembly and clamping assembly are rotated, improving welding efficiency and accuracy, reducing manual intervention and errors, ensuring accurate positioning of the circuit board, and automatically rotating to enhance the automation level of the production line, saving space and reducing costs, thereby optimizing the welding process and improving production efficiency and stability.

Description

Technical Field

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

[0002] Circuit board soldering is a crucial step in electronic product assembly, and with the continuous advancement of electronic technology, the soldering process faces increasingly higher precision requirements. To address the precision issues in the soldering process, positioning fixtures, as key auxiliary tools, can accurately position components, ensuring the accuracy and consistency of soldering, thereby significantly improving production efficiency. With the development of intelligent manufacturing, intelligent positioning fixtures incorporating advanced technologies are gradually becoming a trend, not only improving soldering precision but also increasing production efficiency. In the future, positioning fixtures will develop towards higher precision, greater intelligence, and greater environmental friendliness, driving the electronics manufacturing industry to achieve higher automation and precision requirements.

[0003] A search revealed an existing patent (publication number: CN210702999U) that discloses a positioning fixture for circuit board welding, including a welding assembly, a U-shaped groove, a working platform, and a fixing assembly. The working platform is located below the welding assembly, and the U-shaped groove is located at the upper end of the working platform. The fixing assembly is installed at the top of a support column. This invention enhances the flexibility of positioning during welding by providing a U-shaped groove along the perimeter of the support column on the surface of the working platform. The welding head and the fine brush head are connected by a rotating shaft, which is sleeved on one end of a telescopic rod via a bearing. A limiting post with a limiting hole drilled on its surface and a matching pin is provided on one side of the telescopic rod, and a slider at the lower end of the limiting post slides within the U-shaped groove. This structure enhances the flexibility of positioning during welding, enabling welding work at any point on the circuit board. Furthermore, the fixing assembly is located at the upper end of the support column, and a collection groove is provided around the perimeter of the support plate. This structure allows for the cleaning of residual debris after welding, even while welding is in progress.

[0004] However, in actual use, the aforementioned solution lacks autonomous flipping functionality during the soldering process. This can lead to reduced soldering efficiency, as it necessitates manual or other equipment for flipping, extending the production cycle. Manual intervention increases operational errors, affecting soldering accuracy and consistency, especially on high-density circuit boards, where errors are easily generated, thus impacting product quality. Furthermore, the inability to flip may occupy more production space, increasing production line complexity and maintenance costs, thereby raising overall production costs. More importantly, this limits the automation level of the production line, affecting production stability and continuity, and preventing the full utilization of the advantages of automated equipment. Therefore, the lack of autonomous flipping functionality significantly impacts the efficiency, accuracy, and production costs of circuit board soldering.

[0005] Therefore, this utility model provides a positioning fixture for circuit board soldering. Utility Model Content

[0006] The purpose of this invention is to solve the problem that the inability to automatically flip the circuit board during the welding process in the prior art may lead to reduced welding efficiency and extended production cycle, and to propose a positioning fixture for circuit board welding.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A positioning fixture for circuit board soldering includes a support frame and further includes: The drive assembly is located on the outside of the support frame; The rotating wheel rotates inside the support frame and is connected to the rotating component of the drive assembly; The first transmission frame is fixed inside the rotating wheel; The support assembly is located on the side adjacent to the first transmission frame; The clamping components are symmetrically arranged on the outside of the support components.

[0008] As a preferred technical solution of this application, the driving component includes a support plate with a middle section outer wall fixed to the outside of one side of the support frame, a gear fixed to the outside of the rotating wheel, a sliding groove opened in the middle section of the top of the support plate, a fixed frame fixedly connected to the outer wall of the support plate, a first electric push rod fixedly connected to one side of the fixed frame outer wall, a connecting frame fixedly connected to the output end of the first electric push rod, and a rack fixedly connected to the inner wall of the top wall of the connecting frame, the rack meshing with the gear.

[0009] As a preferred technical solution of this application, the support component includes a fixed frame fixed to one side of the first transmission frame, and the bottom inner side of the fixed frame is fixedly connected with evenly distributed support feet.

[0010] As a preferred technical solution of this application, the clamping assembly includes a first limiting frame fixed to both sides of the bottom of the fixed frame. A second electric push rod is rotatably connected to the outer bottom of the first limiting frame. A transmission rod is rotatably connected to the output end of the second electric push rod. A first clamping plate is rotatably connected to the middle section of the outer side of the transmission rod. A second transmission frame is fixedly connected to the middle section of the first clamping plate. The second transmission frame is rotatably connected to the first limiting frame. A second clamping plate is rotatably connected to both ends of the outer side of the transmission rod. A third transmission frame is fixedly connected to the outer side of the second clamping plate. A second limiting frame is rotatably connected to the bottom of the third transmission frame. The second limiting frame is fixedly connected to the bottom of the fixed frame.

[0011] As a preferred technical solution of this application, a micro air cushion is provided on the top of the support foot.

[0012] As a preferred technical solution of this application, a rubber layer is provided at the bottom of the first clamping plate.

[0013] Compared with the prior art, the present invention provides a positioning fixture for circuit board soldering, which has the following advantages: 1. The positioning fixture for circuit board welding described in this utility model uses a drive component to drive a rotating wheel and a first transmission frame to rotate the support component and clamping component, thereby improving welding efficiency and accuracy, reducing manual intervention and errors, ensuring accurate positioning of the circuit board, and the automatic rotation also improves the automation level of the production line, saves space and reduces costs, thereby optimizing the welding process and improving production efficiency and stability.

[0014] 2. The positioning fixture for circuit board welding described in this utility model uses a second electric push rod to drive a transmission rod to rise and fall with the first limit frame as the stress point. At the same time, the transmission rod drives the first clamping plate and the second clamping plate to rotate, fixing the circuit board placed on top of the support foot. This precise fixation of the circuit board ensures stability and accuracy during the welding process. The automated lifting and clamping actions reduce manual operation, improve production efficiency, and reduce human error. This fixture is highly adaptable and can flexibly handle circuit boards of different sizes, shorten the production cycle, optimize the welding process, and improve overall production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 3 This is a partial three-dimensional structural diagram of the rack in this utility model; Figure 4 This is a partial three-dimensional structural diagram of the fixed frame in this utility model; Figure 5 This is a partial three-dimensional structural diagram of the second electric push rod in this utility model.

[0016] In the picture: 1. Support frame; 11. Rotating wheel; 2. Support plate; 21. Slide groove; 22. Fixed frame; 23. First electric push rod; 24. Connecting frame; 25. Rack; 26. Gear; 3. Fixed frame; 31. Support foot; 32. First transmission frame; 4. First limiting frame; 41. Second electric push rod; 42. Transmission rod; 43. Second transmission frame; 44. First clamping plate; 45. Second limiting frame; 46. Third transmission frame; 47. Second clamping plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0018] Reference Figure 1-5 A positioning fixture for circuit board soldering includes a support frame 1, and further includes: The drive component is located on the outside of the support frame 1, and the support frame 1 supports the drive component. The rotating wheel 11 rotates inside the support frame 1 and is connected to the drive assembly rotating assembly. The support frame 1 supports and limits the rotating wheel 11, so that the rotating wheel 11 passes through the support frame 1 and rotates inside the support frame 1. The first transmission frame 32 is fixed inside the rotating wheel 11. The rotating wheel 11 supports and fixes the first transmission frame 32, and at the same time, the rotating wheel 11 drives the first transmission frame 32 to rotate. A support assembly is disposed on one side adjacent to the first transmission frame 32, and the first transmission frame 32 supports the support assembly. The clamping components are symmetrically arranged on the outside of the support components. The support components support the clamping components, and the clamping components limit the movement of the circuit board placed inside the support components.

[0019] The drive assembly includes a support plate 2 fixed to the outer wall of the middle section of a support frame 1, which is supported and fixed by the support frame 1; a gear 26 fixed to the outer side of a rotating wheel 11, which is supported and fixed by the rotating wheel 11; a groove 21 is provided in the middle section of the top of the support plate 2; a fixing frame 22 is fixedly connected to the outer wall of the support plate 2, which is supported and fixed by the groove 21; a first electric push rod 23 is fixedly connected to one side of the outer wall of the fixing frame 22, which supports and fixes the first electric push rod 23 and provides pressure for the first electric push rod 23. The first electric push rod 23 is fixedly connected to a connecting frame 24 at its output end. The first electric push rod 23 supports and fixes the connecting frame 24, and at the same time, the first electric push rod 23 drives the connecting frame 24 to move laterally. A rack 25 is fixedly connected to the inner wall of the top wall of the connecting frame 24. The rack 25 is supported and fixed by the connecting frame 24, and at the same time, the rack 25 is limited by the slide groove 21, so that the rack 25 slides inside the slide groove 21. The rack 25 meshes with the gear 26. The lateral movement of the rack 25 limits the gear 26 and drives the gear 26 to rotate.

[0020] The support assembly includes a fixed frame 3 fixed to one side of the first transmission frame 32. The fixed frame 3 is supported and fixed by the first transmission frame 32. The bottom inner side of the fixed frame 3 is fixedly connected with evenly distributed support feet 31. The fixed frame 3 supports and fixes multiple support feet 31, and the support feet 31 also support the circuit board.

[0021] The clamping assembly includes a first limiting frame 4 fixed to both sides of the bottom of the fixing frame 3, which is supported and fixed by the fixing frame 3. A second electric push rod 41 is rotatably connected to the outer bottom of the first limiting frame 4, limiting the middle section of the second electric push rod 41. A transmission rod 42 is rotatably connected to the output end of the second electric push rod 41, limiting the transmission rod 42. At the same time, the second electric push rod 41 itself extends and retracts, driving the transmission rod 42 to rise and fall. A first clamping plate 44 is rotatably connected to the middle section of the outer side of the transmission rod 42, limiting the first clamping plate 44 and driving the outer end of the first clamping plate 44 to rise and fall. A second transmission frame 43 is fixedly connected to the middle section of the first clamping plate 44, supporting the second transmission frame 43. The second transmission frame 43 is rotatably connected to the first limiting frame 4. The first limiting frame 4 limits the bottom of the second transmission frame 43, thereby driving the first clamping plate 44 and the second transmission frame 43 to rotate around the connection point between the second transmission frame 43 and the first limiting frame 4 via the transmission rod 42. The outer ends of the transmission rod 42 are rotatably connected to the second clamping plate 47, which limits the outer ends of the second clamping plate 47. The outer side of the second clamping plate 47 is fixedly connected to the third transmission frame 46, which is supported and fixed by the second clamping plate 47. The bottom of the third transmission frame 46 is rotatably connected to the second limiting frame 45, which limits the third transmission frame 46. The second limiting frame 45 is fixedly connected to the bottom of the fixed frame 3, which is supported and fixed by the fixed frame 3.

[0022] The top of the support foot 31 is equipped with a miniature air cushion.

[0023] The bottom of the first clamping plate 44 is provided with a rubber layer, which protects the circuit board through micro air cushions and the rubber layer.

[0024] Specifically, the positioning fixture used for soldering this circuit board operates as follows: First, the circuit board is placed inside the fixing frame 3 and supported by the support feet 31, while the fixing frame 3 limits the position of the circuit board. Then, the second electric push rod 41 drives the transmission rod 42 to move upward with the first limit frame 4 as the stress point. Then, the transmission rod 42 drives the outer ends of the first clamping plate 44 and the second transmission frame 43 to rotate around the connection point between the first limit frame 4 and the second transmission frame 43. At the same time, the transmission rod 42 drives the second clamping plate 47 and the third transmission frame 46 to rotate around the connection point between the second limit frame 45 and the third transmission frame 46, thereby clamping and fixing the circuit board inside the fixing frame 3. After one side is welded, the first electric push rod 23 drives the connecting frame 24 to move away from the first electric push rod 23 with the fixed frame 22 as the stress point. At the same time, the connecting frame 24 drives the rack 25 to rotate synchronously. During the process, the rack 25 drives the gear 26 to rotate. At the same time, the gear 26 drives the fixed frame 3 to flip through the rotating wheel 11 and the first transmission frame 32 to weld the other side.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning jig for a circuit board soldering, comprising a support frame (1), characterized in that, Also includes: The drive assembly is located on the outside of the support frame (1); Rotating wheel (11) rotates inside the support frame (1) and is connected to the drive assembly rotating assembly; The first transmission frame (32) is fixed inside the rotating wheel (11); The support assembly is located on the side adjacent to the first transmission frame (32); The clamping components are symmetrically arranged on the outside of the support components.

2. The positioning jig for a circuit board welding according to claim 1, wherein The drive assembly includes a support plate (2) fixed to the outer wall of the middle section of the support plate (2) on the outside of the support frame (1) on one side, and a gear (26) fixed to the outside of the rotating wheel (11). A sliding groove (21) is provided in the middle section of the top of the support plate (2). A fixing frame (22) is fixedly connected to the outer wall of the support plate (2). A first electric push rod (23) is fixedly connected to the outer wall of one side of the fixing frame (22). A connecting frame (24) is fixedly connected to the output end of the first electric push rod (23). A rack (25) is fixedly connected to the inner wall of the top wall of the connecting frame (24). The rack (25) meshes with the gear (26).

3. The positioning jig for a circuit board soldering according to claim 2, wherein The support assembly includes a fixed frame (3) fixed to one side of the first transmission frame (32), and the bottom inner side of the fixed frame (3) is fixedly connected with evenly distributed support feet (31).

4. The positioning jig for a circuit board soldering according to claim 3, wherein The clamping assembly includes a first limiting frame (4) fixed to both sides of the bottom of the fixed frame (3). A second electric push rod (41) is rotatably connected to the outer bottom of the first limiting frame (4). A transmission rod (42) is rotatably connected to the output end of the second electric push rod (41). A first clamping plate (44) is rotatably connected to the middle section of the outer side of the transmission rod (42). A second transmission frame (43) is fixedly connected to the middle section of the first clamping plate (44). The second transmission frame (43) is rotatably connected to the first limiting frame (4). A second clamping plate (47) is rotatably connected to both ends of the outer side of the transmission rod (42). A third transmission frame (46) is fixedly connected to the outer side of the second clamping plate (47). A second limiting frame (45) is rotatably connected to the bottom of the third transmission frame (46). The second limiting frame (45) is fixedly connected to the bottom of the fixed frame (3).

5. The positioning jig for a circuit board soldering according to claim 4, wherein The top of the support foot (31) is provided with a micro air cushion.

6. The positioning jig for a circuit board soldering according to claim 5, wherein The bottom of the first clamping plate (44) is provided with a rubber layer.

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