Pressure furnace-passing jig for reflow soldering

Abstract

The utility model relates to the field of jigs, and discloses a reflow soldering pressure furnace-passing jig which comprises a bearing frame, a plurality of bearing plates are movably arranged in the bearing frame, two connecting plates are detachably arranged on the top faces of the bearing plates respectively, two movable holes are formed in the top face of the bearing frame, and the top faces of the two connecting plates are provided with clamping grooves. And first threaded holes are formed in the top faces of the two connecting plates correspondingly, locking bolts are in threaded connection with the interiors of the two first threaded holes correspondingly, the two locking bolts are movably arranged in the two movable holes correspondingly, and the threaded ends of the two locking bolts are in threaded connection with butterfly nuts correspondingly. According to the utility model, the bearing plate, the connecting plate, the locking bolt and the butterfly nut are matched for use, so that the jig can adapt to PCBs of various sizes, and the flexibility and the practicability of the jig are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of jigs, specifically a pressure reflow furnace jig for reflow welding. Background Technology

[0002] Reflow soldering is a common process in electronics manufacturing, used to solder various components onto circuit boards. Reflow soldering involves providing a heated environment by blowing air or nitrogen gas at a sufficiently high temperature onto the circuit board with the components already mounted. This heat melts the solder paste, reliably bonding the surface-mount components to the circuit board pads. Reflow soldering fixtures are commonly used in reflow soldering to support thin substrates or flexible circuit boards, and can also be used to support multi-panel boards to increase productivity.

[0003] According to Chinese Patent No. CN221935612U, a pressure reflow oven fixture for reflow welding includes a supporting mechanism, within which six fixing mechanisms are provided. Each of the six fixing mechanisms includes a hinge, a silicone rubber sleeve, a spring, a silicone rubber pad, a mounting block, and a fixing member. The silicone rubber pad is fixedly connected to the bottom of the mounting block, and the mounting block is fixedly connected to the bottom of the silicone rubber pad. The fixing member is hinged to the hinge. A connecting groove is provided inside the silicone rubber sleeve, and the spring is disposed in the connecting groove and fixedly connected to the silicone rubber sleeve. The silicone rubber sleeve is disposed above the fixing member.

[0004] In the above solution, the PCB board is placed in the second slot and then fixed by a fastener. This results in the following disadvantages: the size of the second slot is fixed when the fixture is in use, which makes it unable to adapt to PCB boards of various sizes, thereby reducing the flexibility and practicality of the fixture. Utility Model Content

[0005] The purpose of this invention is to provide a pressure reflow oven fixture to solve the problem that the second slot of the fixture has a fixed size, which makes it unable to adapt to PCB boards of various sizes, thus reducing the flexibility and practicality of the fixture.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a pressure reflow oven fixture for reflow welding, comprising a support frame, wherein a plurality of support plates are movably arranged inside the support frame, and two connecting plates are detachably arranged on the top surface of each of the support plates. Two movable holes are opened on the top surface of the support frame, and a first threaded hole is opened on the top surface of each of the two connecting plates. Locking bolts are threaded into the two first threaded holes, and the two locking bolts are movably arranged in the two movable holes. A wing nut is threaded into the threaded end of each of the two locking bolts.

[0007] Preferably, the top surface of the support frame is detachably provided with a plurality of first fixing members, and the top surfaces of the plurality of support plates are respectively detachably provided with second fixing members.

[0008] Preferably, the top surfaces of the plurality of bearing plates are provided with a plurality of first threaded grooves, and the top surfaces of the two connecting plates are provided with two second threaded holes, and the two second threaded holes are respectively threaded with first bolts, the threaded ends of the first bolts being threadedly connected to the inside of the first threaded grooves.

[0009] Preferably, the top surface of the support frame has two sliding grooves, and the bottom surfaces of the two connecting plates are respectively fixed with limit posts, and the two limit posts are slidably arranged in the two sliding grooves.

[0010] Preferably, the top surface of the support frame is provided with a plurality of second threaded grooves, the top surface of the plurality of first fixing members is provided with a third threaded hole, a second bolt is threadedly connected to the plurality of third threaded holes, the threaded ends of the plurality of second bolts are threadedly connected to the interior of the plurality of second threaded grooves, the top surface of the plurality of support plates is provided with a plurality of third threaded grooves, the top surface of the plurality of second fixing members is provided with a fourth threaded hole, a third bolt is threadedly connected to the plurality of fourth threaded holes, and the threaded ends of the plurality of third bolts are threadedly connected to the interior of the plurality of third threaded grooves.

[0011] Preferably, the front and rear ends of the plurality of first fixing members and the plurality of second fixing members are both arc-shaped.

[0012] Compared with existing technologies, a pressure reflow oven fixture for reflow welding that adopts the above-mentioned technical solution has the following beneficial effects:

[0013] 1. During use, the operator can place the PCB board between two support plates. When different sized PCB boards need to be placed, the support plates and connecting plates are moved back and forth to adjust the distance between the two support plates. This allows the locking bolt to move and adjust within the movable hole. Once the distance between the two support plates is adjusted, the connecting plate is locked in place by using a wing nut in conjunction with the locking bolt, thus fixing the position of the support plate. The combined use of the support plates, connecting plates, locking bolts, and wing nuts allows the fixture to adapt to PCB boards of various sizes, improving its flexibility and practicality.

[0014] Second, during use, after the operator places the PCB board on the support frame and support plate, the PCB board is secured by rotating the first and second fixing parts. This fixing method is not only simple and efficient, but also ensures that the PCB board remains stationary during the soldering process, preventing soldering deviations caused by movement. The cooperation of the first bolt and the first threaded groove facilitates the operator's disassembly and assembly of the support plate, making fixture maintenance easier and providing convenience for replacing support plates of different sizes.

[0015] Thirdly, during use, the combination of the sliding groove and the limiting post facilitates the movement of the support plate and connecting plate by operators, preventing displacement and ensuring the stability and accuracy of the support plate and connecting plate during movement. The combination of the second and third bolts facilitates the disassembly and assembly of the first and second fixing components, making their replacement and maintenance easier. By designing the front and rear ends of both the first and second fixing components as curved, they can better fit the edges of the PCB board when fixing it, reducing the risk of damage to the PCB board during the fixing process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is an exploded view of an embodiment.

[0018] Figure 3 This is an exploded view of the support plate and connecting plate in the embodiment.

[0019] Figure 4 Examples Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Bearing frame; 2. Bearing plate; 3. Connecting plate; 4. Movable hole; 5. First threaded hole; 6. Locking bolt; 7. Wing nut; 8. First fixing component; 9. Second fixing component; 10. First threaded groove; 11. Second threaded hole; 12. First bolt; 13. Slide groove; 14. Limiting post; 15. Second threaded groove; 16. Third threaded hole; 17. Second bolt; 18. Third threaded groove; 19. Fourth threaded hole; 20. Third bolt. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a pressure reflow oven fixture for reflow welding includes a support frame 1. Several support plates 2 are movably arranged inside the support frame 1. Two connecting plates 3 are detachably arranged on the top surface of each of the support plates 2. Two movable holes 4 are opened on the top surface of the support frame 1. First threaded holes 5 are opened on the top surface of each of the two connecting plates 3. Locking bolts 6 are threaded into the two first threaded holes 5. The two locking bolts 6 are movably arranged in the two movable holes 4. The threaded ends of the two locking bolts 6 are threaded with wing nuts 7.

[0023] In use, the operator can place the PCB board between the two support plates 2. When different sized PCB boards need to be placed, the support plates 2 and connecting plates 3 are moved back and forth to adjust the distance between the two support plates 2. This allows the locking bolt 6 to move and adjust within the movable hole 4. Once the distance between the two support plates 2 is adjusted, the connecting plate 3 is locked in place by using the wing nut 7 in conjunction with the locking bolt 6, thus fixing the position of the support plates 2. The coordinated use of the support plates 2, connecting plates 3, locking bolt 6, and wing nut 7 allows the fixture to adapt to PCB boards of various sizes, improving the fixture's flexibility and practicality.

[0024] like Figures 1-4 As shown, the top surface of the support frame 1 is detachably provided with several first fixing members 8, and the top surfaces of several support plates 2 are respectively detachably provided with second fixing members 9.

[0025] In use, after the staff places the PCB board on the support frame 1 and the support plate 2, they can fix the PCB board by rotating the first fixing part 8 and the second fixing part 9. The fixing method is not only simple and efficient, but also ensures that the PCB board remains stationary during the soldering process, preventing soldering deviation caused by movement.

[0026] like Figures 1-4 As shown, several first threaded grooves 10 are respectively opened on the top surface of several bearing plates 2, and two second threaded holes 11 are respectively opened on the top surface of two connecting plates 3. First bolts 12 are threadedly connected in the two second threaded holes 11. The threaded end of the first bolt 12 is threadedly connected to the inside of the first threaded groove 10. Two sliding grooves 13 are opened on the top surface of the bearing frame 1, and limit posts 14 are respectively fixed on the bottom surface of the two connecting plates 3. The two limit posts 14 are slidably arranged in the two sliding grooves 13.

[0027] In use, the cooperation between the first bolt 12 and the first threaded groove 10 facilitates the disassembly and assembly of the bearing plate 2, making the maintenance of the fixture easier and providing convenience for replacing bearing plates 2 of different sizes. The cooperation between the slide groove 13 and the limiting post 14 helps the operator to limit the movement of the bearing plate 2 and the connecting plate 3, preventing displacement and ensuring the stability and accuracy of the bearing plate 2 and the connecting plate 3 during movement.

[0028] like Figures 1-4 As shown, the top surface of the support frame 1 is provided with several second threaded grooves 15, the top surface of several first fixing members 8 is provided with third threaded holes 16, and second bolts 17 are threadedly connected to the several third threaded holes 16. The threaded ends of the several second bolts 17 are threadedly connected to the inside of the several second threaded grooves 15. The top surface of several support plates 2 is provided with several third threaded grooves 18, the top surface of several second fixing members 9 is provided with fourth threaded holes 19, and third bolts 20 are threadedly connected to the several fourth threaded holes 19. The threaded ends of the several third bolts 20 are threadedly connected to the inside of the several third threaded grooves 18. The front and rear ends of the several first fixing members 8 and the several second fixing members 9 are both arc-shaped.

[0029] In use, the cooperation of the second bolt 17 and the third bolt 20 facilitates the disassembly and assembly of the first fixing part 8 and the second fixing part 9, making the replacement and maintenance of the first fixing part 8 and the second fixing part 9 easier. By making the front and rear ends of the first fixing part 8 and the second fixing part 9 both curved, they can better fit the edge of the PCB board when fixing it, reducing the risk of damage to the PCB board during the fixing process.

[0030] 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 reflow soldering pressure furnace fixture comprising a carrier frame (1), characterized in that, The inside of the bearing frame (1) is movably provided with a plurality of bearing plates (2), the top surfaces of the plurality of bearing plates (2) are respectively detachably provided with two connecting plates (3), the top surface of the bearing frame (1) is provided with two movable holes (4), the top surfaces of the two connecting plates (3) are respectively provided with first threaded holes (5), two lock bolts (6) are respectively threadedly connected in the two first threaded holes (5), the two lock bolts (6) are respectively movably arranged in the two movable holes (4), and the threaded ends of the two lock bolts (6) are respectively threadedly connected with butterfly nuts (7).

2. The reflow soldering pressure furnace fixture according to claim 1, wherein: The top surface of the bearing frame (1) is detachably provided with a plurality of first fixing members (8), and the top surfaces of the plurality of bearing plates (2) are respectively detachably provided with second fixing members (9).

3. The reflow soldering pressure oven fixture of claim 2, wherein: The top surfaces of the plurality of bearing plates (2) are respectively provided with a plurality of first threaded grooves (10), the top surfaces of the two connecting plates (3) are respectively provided with two second threaded holes (11), and first bolts (12) are respectively threadedly connected in the two second threaded holes (11). The threaded end of the first bolt (12) is threadedly connected with the inside of the first threaded groove (10).

4. The reflow soldering pressure oven fixture of claim 3, wherein: The top surface of the bearing frame (1) is provided with two sliding grooves (13), the bottoms of the two connecting plates (3) are respectively fixed with limiting columns (14), and the two limiting columns (14) are respectively slidably arranged in the two sliding grooves (13).

5. The reflow soldering pressure oven fixture of claim 4, wherein: The top surface of the bearing frame (1) is provided with a plurality of second threaded grooves (15), the top surfaces of the plurality of first fixing members (8) are respectively provided with third threaded holes (16), a plurality of second bolts (17) are respectively threadedly connected in a plurality of third threaded holes (16), the threaded ends of the plurality of second bolts (17) are respectively threadedly connected with the interiors of a plurality of second threaded grooves (15), the top surfaces of the plurality of bearing plates (2) are respectively provided with a plurality of third threaded grooves (18), the top surfaces of the plurality of second fixing members (9) are respectively provided with fourth threaded holes (19), a plurality of third bolts (20) are respectively threadedly connected in a plurality of fourth threaded holes (19), and the threaded ends of the plurality of third bolts (20) are respectively threadedly connected with the interiors of a plurality of third threaded grooves (18).

6. The reflow soldering pressure oven fixture of claim 2, wherein: The front ends and the rear ends of the plurality of first fixing members (8) and the plurality of second fixing members (9) are arc-shaped.

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