A special fixture for FPCA furnace

Abstract

The utility model belongs to the technical field of passing through the furnace jig, disclose a kind of FPCA passing through the special jig of furnace, including base, the bottom of one side of base is provided with insert block, the inner wall top of base is provided with frame, the frame is opened with strip slot around, the upper end of frame is closely attached with moving plate one, the lower end of moving plate one is bolted with baffle, the upper end of moving plate one is slidably connected with moving plate two, the upper end of moving plate two is slidably connected with compression mechanism, the bottom of the other side of base is fixedly connected with connecting mechanism, the upper end of moving plate two two sides is detachably connected with stud. Through the compression mechanism of being set can make equipment can according to the size of workpiece its position is adjusted quickly and fixed, to different size workpiece is fixed, improve the versatility and production efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the field of furnace reflow fixture technology, specifically a special furnace reflow fixture for FPCA. Background Technology

[0002] Reflow soldering is a crucial step in the FPCA (Printed Circuit Board Assembly) production process. It involves passing the printed circuit board through a high-temperature furnace to solder electronic components onto the conductive traces on the FPC, creating a permanent connection. The primary purpose of reflow soldering is to ensure soldering quality, resulting in a stronger and more reliable connection between the electronic components and the FPC. In the high-temperature environment, the solder melts and fills the gaps between the component leads and the conductive traces, forming an electrical connection. During reflow soldering, parameters such as temperature, time, and soldering pressure must be strictly controlled to ensure soldering quality and production efficiency.

[0003] Patent CN222588346U discloses a special fixture for FPCA reflow oven, including a base for placement in a reflow oven. The base has a surrounding edge on its top, and a receiving groove for placing a circuit board is formed within the surrounding edge. The fixture includes a positioning mechanism disposed within the receiving groove for positioning the circuit board. The positioning mechanism includes a slot formed on the side wall of the surrounding edge for inserting the side of the circuit board, a movable block that moves within the receiving groove, and a positioning groove formed on one side of the movable block. The positioning groove and the slot are arranged opposite to each other. The fixture also includes a guide component disposed on the movable block.

[0004] Currently, traditional FPCA reflow fixtures cannot be quickly adjusted to accommodate workpieces of different sizes, which not only fails to improve production efficiency but also increases production costs. Furthermore, they can only be used for a single fixture, reducing the practicality of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a special fixture for FPCA reflow ovens, in order to solve the problems mentioned in the background art, such as the inability to quickly adjust the position of the special fixture for FPCA reflow ovens according to workpieces of different sizes, which not only fails to improve production efficiency but also increases production costs, and can only produce for a single fixture, thus reducing the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special fixture for FPCA reflow oven, comprising a base, an insert block provided at the bottom of one side of the base, a frame provided at the top of the inner wall of the base, strip grooves opened around the perimeter of the frame, a movable plate one tightly attached to the upper end of the frame, a baffle bolted to the lower end of the movable plate one, a movable plate two slidably connected to the upper end of the movable plate one, a pressing mechanism slidably connected to the upper end of the movable plate two, a connecting mechanism fixedly connected to the bottom of the other side of the base, and studs detachably connected to both sides of the upper end of the movable plate two;

[0007] The clamping mechanism includes a bracket, one side of the lower end of which is in close contact with the upper end of the movable plate two. A bolt is provided on the inner wall of the bracket, and a nut is provided on the outer wall of the bolt. A pull rod is slidably connected to the other side of the bracket. A handle is welded to the upper end of the pull rod. A clamping plate is fixedly connected to the lower end of the pull rod. A rubber pad is adhered to the lower end of the clamping plate. A spring is sleeved on the outer wall of the pull rod. Sliding rods are fixedly connected to both sides of the upper end of the clamping plate.

[0008] Preferably, one side of the insert is fixedly connected to the bottom of one side of the base, and the outer wall of the frame is fixedly connected to the top of the inner wall of the base.

[0009] Preferably, the inner wall of the bracket is inserted into the outer wall of the bolt, and the outer wall of the bolt is threaded into the inner wall of the nut.

[0010] Preferably, the spring is disposed between the lower end of the bracket and the pressure plate and is fixedly connected thereto.

[0011] Preferably, the connecting mechanism includes a slot, the outer wall of which is embedded and connected to the bottom of the other side of the base. The upper end of the slot is provided with a mounting groove, and the inner top wall of the mounting groove is provided with a second spring. The lower end of the second spring is fixedly connected to a limiting block. A movable groove is opened on one side of the mounting groove. A movable block is fixedly connected to the side of the limiting block near the movable groove, and a movable plate is fixedly connected to the side of the movable block away from the limiting block.

[0012] Preferably, the upper end of the slot is embedded and connected to the lower end of the mounting groove, and the inner top wall of the mounting groove is fixedly connected to the upper end of the second spring.

[0013] Preferably, one side of the movable block extends through the movable groove to one side of the base and is connected to the movable plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The clamping mechanism allows the equipment to quickly adjust and fix the position of the workpiece according to its size, thus fixing workpieces of different sizes, improving the equipment's versatility and production efficiency. During use, the operator can manually pull the handle to make the lever slide the clamping plate on the bracket, thereby adjusting the position of the clamping plate. Since the upper ends of the clamping plate are fixed with sliding rods on both sides, the sliding rods can slide on the bracket, thus ensuring the stability of the clamping plate during movement. At the same time, a spring is set between the lower end of the bracket and the clamping plate. When the operator releases the handle, the elastic force of the spring can make the clamping plate automatically return to its original position, clamping and fixing the workpiece. In addition, a rubber pad is glued to the lower end of the clamping plate, which can increase the friction between the clamping plate and the workpiece, improving the stability of the fixation.

[0016] 2. The connection mechanism allows for quick and stable connection between the base and other bases, improving the flexibility and practicality of the equipment. During use, the operator inserts the plug to be connected into the slot. At this time, the second spring is compressed and generates elastic force. When the plug is fully inserted, the limiting block will be locked onto the plug on one side of the base under the elastic force of the second spring, thus achieving connection. Since a movable block is fixed to one side of the limiting block, and a movable plate is fixed to one side of the movable block, the operator can push the movable plate to move the movable block and the limiting block, thereby disengaging the limiting block from the plug and achieving quick disassembly. In addition, the upper end of the slot and the lower end of the mounting groove are embedded and connected, which not only increases the stability of the connection but also makes the entire connection mechanism more compact, facilitating installation and use on the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0020] Figure 4 This is a side view of the three-dimensional structure of this utility model.

[0021] In the diagram: 1. Base; 2. Insert block; 3. Frame; 4. Strip groove; 5. Moving plate one; 6. Baffle; 7. Moving plate two; 8. Pressing mechanism; 9. Connecting mechanism; 10. Stud; 81. Bracket; 82. Bolt; 83. Nut; 84. Pull rod; 85. Handle; 86. Pressing plate; 87. Rubber pad; 88. Spring one; 89. Slide rod; 91. Slot; 92. Mounting slot; 93. Spring two; 94. Limit block; 95. Movable slot; 96. Movable block; 97. Movable plate. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 4This utility model provides a technical solution: a special fixture for FPCA reflow oven, including a base 1, an insert block 2 provided at the bottom of one side of the base 1, a frame 3 provided at the top of the inner wall of the base 1, strip grooves 4 opened around the frame 3, a movable plate 5 tightly attached to the upper end of the frame 3, a baffle 6 bolted to the lower end of the movable plate 5, a movable plate 7 slidably connected to the upper end of the movable plate 5, a pressing mechanism 8 slidably connected to the upper end of the movable plate 7, a connecting mechanism 9 fixedly connected to the bottom of the other side of the base 1, and studs 10 detachably connected to both sides of the upper end of the movable plate 7. The pressing mechanism 8 includes... The bracket 81 has its lower end attached to the upper end of the movable plate 7. The inner wall of the bracket 81 is provided with bolts 82, and the outer wall of the bolts 82 is provided with nuts 83. The other side of the bracket 81 is slidably connected to a pull rod 84. The upper end of the pull rod 84 is welded with a handle 85, and the lower end of the pull rod 84 is fixedly connected to a pressure plate 86. The lower end of the pressure plate 86 is bonded with a rubber pad 87. The outer wall of the pull rod 84 is fitted with a spring 88. The upper ends of the pressure plate 86 are fixedly connected to sliding rods 89 on both sides. One side of the insert block 2 is fixedly connected to the bottom side of one side of the base 1. The outer wall of the frame 3 is fixedly connected to the top of the inner wall of the base 1.

[0024] Two insert blocks 2 are set at the bottom of one side of the base 1, while a frame 3 is installed at the top of the inner wall of the base 1. The frame 3 has strip grooves 4 around its perimeter to allow the moving plates 5 and 7 of the fixture to fit smoothly with it. At the top of the frame 3, a moving plate 5 is attached to the frame. The lower end of the moving plate 5 is fixed with a baffle 6 by bolting. The upper end of the moving plate 5 is designed to be slidably connected to another moving plate 7. The upper end of the moving plate 7 is slidably connected to a clamping mechanism 8. In addition, a connecting mechanism 9 is fixed at the bottom of the other side of the base 1 to ensure the stability and functionality of the fixture and to enable simultaneous connection of multiple bases 1. The upper sides of the moving plate 7 are also provided with The connecting studs 10 can be easily disassembled to facilitate the adjustment and maintenance of the movable plate 1 5 and movable plate 2 7. The lower end of the bracket 81 is tightly fitted to the upper end of the movable plate 2 7. The inner wall of the bracket 81 is provided with bolts 82, and the outer wall of the bolts 82 is fitted with nuts 83. A pull rod 84 is slidably connected to the other side of the bracket 81. A handle 85 is welded to the upper end of the pull rod 84 for easy operation. A pressure plate 86 is fixed to the lower end of the pull rod 84. A rubber pad 87 is glued to the lower end of the pressure plate 86 to increase the friction during pressing and protect the pressed FPCA. A spring 88 is sleeved on the outer wall of the pull rod 84 to provide the necessary elasticity and ensure that the pressure plate 86 can apply pressure evenly.

[0025] Please see Figure 2In order to quickly fix the circuit board in the base 1, the inner wall of the bracket 81 is inserted into the outer wall of the bolt 82, the outer wall of the bolt 82 is threaded into the inner wall of the nut 83, and the spring 88 is set between the lower end of the bracket 81 and the pressure plate 86 and fixed thereto.

[0026] Slide rods 89 are fixedly connected to both sides of the upper end of the clamping plate 86. These slide rods 89 can cooperate with the corresponding structure of the bracket 81 to achieve precise clamping action. One side of the insert block 2 is firmly connected to the bottom side of the base 1, while the outer wall of the frame 3 is tightly fixed to the top of the inner wall of the base 1 to ensure the structural stability and durability of the entire fixture. When using this FPCA reflow fixture, first place the workpiece in the base 1, and then, according to the size of the workpiece, manually pull the moving plate 1 5 to slide on the frame 3. The moving plate 1 5 drives the baffle 6 to move, and at the same time pulls the moving plate 2 7 to move. The moving plate 2 7 drives the clamping mechanism 8 to move until the baffle 6 limits one side of the workpiece. Then, by rotating the nut 83, the nut 8 3. Rotate the outer wall of bolt 82. Nut 83 pushes bracket 81 to move. Bracket 81 drives pull rod 84 to move. Pull rod 84 drives pressure plate 86 to move until pressure plate 86 presses the other side of workpiece through rubber pad 87. At the same time, spring 88 is compressed. The spring 88 increases the stability of pressure plate 86 during movement. When it is necessary to disassemble connecting mechanism 9, manually pull movable plate 97. Movable plate 97 drives movable block 96 to slide inside movable groove 95. Movable block 96 drives limit block 94 to move. At the same time, spring 93 is compressed until limit block 94 is completely disengaged from slot 91. At this time, the two bases 1 can be disassembled, which increases the practicality of the device.

[0027] Please see Figure 3 To quickly connect multiple bases 1, the connecting mechanism 9 includes a slot 91. The outer wall of the slot 91 is embedded and connected to the bottom of the other side of the base 1. The upper end of the slot 91 is provided with a mounting groove 92. The inner top wall of the mounting groove 92 is provided with a spring 93. The lower end of the spring 93 is fixedly connected to a limit block 94. A movable groove 95 is opened on one side of the mounting groove 92. A movable block 96 is fixedly connected to the side of the limit block 94 near the movable groove 95. A movable plate 97 is fixedly connected to the side of the movable block 96 away from the limit block 94. The upper end of the slot 91 is embedded and connected to the lower end of the mounting groove 92. The inner top wall of the mounting groove 92 is fixedly connected to the upper end of the spring 93. One side of the movable block 96 extends through the movable groove 95 to one side of the base 1 and is connected to the movable plate 97.

[0028] To achieve rapid connection between multiple bases 1, the outer wall of the slot 91 is tightly embedded in the bottom of the other side of the base 1, ensuring structural stability. An installation groove 92 is provided at the upper part of the slot 91, with two symmetrical springs 93 on its inner top wall. The lower ends of the springs 93 are fixed to the limiting block 94. This arrangement ensures that the springs 93 can effectively control the position of the limiting block 94 during connection. Simultaneously, a movable groove 95 is provided on one side of the installation groove 92 to facilitate the movement of the movable block 96. The movable block 96 is fixed to the side of the limiting block 94 closest to the movable groove 95, while a movable plate 97 is fixed to the side of the movable block 96 furthest from the limiting block 94. This arrangement allows the movable block 96 to extend through the movable groove 95 to one side of the base 1 and connect with the movable plate 97. In use, the circuit board is first placed in the frame 3. By moving the first movable plate 5 and the second movable plate 7, the position of the clamping mechanism 8 can be adjusted to adapt to circuit boards of different sizes. Then, by rotating the nut 83, the bolt 82 moves in the bracket 81 to adjust the position of the bracket 81. Next, the pull rod 84 and the clamping plate 86 move downward to clamp the circuit board. The rubber pad 87 at the lower end of the clamping plate 86 can increase the friction during clamping and prevent the circuit board from sliding. At the same time, the spring 88 can provide an elastic force to make the clamping plate 86 more stable when clamping the circuit board. In addition, when multiple bases 1 need to be connected, simply insert the slot 91 into the bottom of the adjacent base 1 and push the movable block 96 and the limiting block 94 by the movable plate 97 to move and lock the limiting block 94 in the mounting groove 92. Spring 2 93 can provide a downward elastic force, making the limiting block 94 more firmly locked in the mounting groove 92. In this way, multiple bases 1 can be quickly connected to form an integral fixture, which is suitable for FPCA reflow production of different sizes.

[0029] Working principle: First, two insert blocks 2 are set at the bottom of one side of the base 1, and a frame 3 is installed on the top of the inner wall of the base 1. The frame 3 has slots 4 around its perimeter to allow the moving plates 1 5 and 2 7 of the fixture to smoothly engage with it. At the top of the frame 3, a moving plate 1 5 is tightly attached. A baffle 6 is bolted to the bottom of this moving plate 1 5. The top of the moving plate 1 5 is slidably connected to another moving plate 2 7, and the top of the moving plate 2 7 is slidably connected to a clamping mechanism 8. Furthermore, a connecting mechanism 9 is fixed to the bottom of the other side of the base 1 to ensure the stability and functionality of the fixture, enabling simultaneous connection of multiple bases 1. The two upper ends of the moving plate 2 7... The side is also equipped with studs 10 for easy disassembly and connection, facilitating adjustment and maintenance of the movable plate 5 and movable plate 7. The lower end of the bracket 81 fits tightly against the upper end of the movable plate 7. Bolts 82 are installed on the inner wall of the bracket 81, and nuts 83 are installed on the outer wall of the bolts 82. A pull rod 84 is slidably connected to the other side of the bracket 81. A handle 85 is welded to the upper end of the pull rod 84 for easy operation. A pressure plate 86 is fixed to the lower end of the pull rod 84. A rubber pad 87 is adhered to the lower end of the pressure plate 86 to increase friction during clamping and protect the clamped FPCA. A spring 88 is fitted onto the outer wall of the pull rod 84 to provide the necessary elasticity, ensuring that the pressure plate 86 applies pressure evenly. Slide rods 89 are fixedly connected to both sides of the upper end of the clamping plate 86. These slide rods 89 can cooperate with the corresponding structure of the bracket 81 to achieve precise clamping action. One side of the insert block 2 is firmly connected to the bottom side of the base 1, while the outer wall of the frame 3 is tightly fixed to the top of the inner wall of the base 1 to ensure the structural stability and durability of the entire fixture. When using this FPCA reflow fixture, first place the workpiece in the base 1, and then, according to the size of the workpiece, manually pull the moving plate 1 5 to slide on the frame 3. The moving plate 1 5 drives the baffle 6 to move, and at the same time pulls the moving plate 2 7 to move. The moving plate 2 7 drives the clamping mechanism 8 to move until the baffle 6 limits one side of the workpiece. Then, by rotating the nut 83, the nut 8 3. Rotate the outer wall of bolt 82. Nut 83 pushes bracket 81 to move. Bracket 81 drives pull rod 84 to move. Pull rod 84 drives pressure plate 86 to move until pressure plate 86 presses the other side of workpiece through rubber pad 87. At the same time, spring 88 is compressed. The spring 88 is designed to increase the stability of pressure plate 86 when it moves. When it is necessary to disassemble the connecting mechanism 9, manually pull movable plate 97. Movable plate 97 drives movable block 96 to slide inside movable groove 95. Movable block 96 drives limit block 94 to move. At the same time, spring 93 is compressed until limit block 94 is completely disengaged from slot 91. At this time, the two bases 1 can be disassembled, which increases the practicality of the device.

[0030] To facilitate rapid connection between multiple bases 1, the outer wall of slot 91 is tightly embedded in the bottom of the other side of base 1, ensuring structural stability. An mounting groove 92 is provided at the upper part of slot 91, with two symmetrical springs 93 on its inner top wall. The lower ends of springs 93 are fixed to limiting blocks 94. This arrangement ensures that springs 93 can effectively control the position of limiting blocks 94 during connection. Simultaneously, a movable groove 95 is provided on one side of mounting groove 92 to facilitate the movement of movable blocks 96. Movable blocks 96 are fixed to the side of limiting blocks 94 closest to the movable groove 95, while movable plates 97 are fixed to the side of movable blocks 96 furthest from limiting blocks 94. This arrangement allows movable blocks 96 to extend through the movable groove 95 to one side of base 1 and connect with movable plates 97. In use, the circuit board is first placed in the frame 3. By moving the first movable plate 5 and the second movable plate 7, the position of the clamping mechanism 8 can be adjusted to accommodate circuit boards of different sizes. Then, by rotating the nut 83, the bolt 82 moves within the bracket 81 to adjust the position of the bracket 81. Next, the pull rod 84 and the clamping plate 86 move downward to clamp the circuit board. The rubber pad 87 at the lower end of the clamping plate 86 increases the friction during clamping and prevents the circuit board from sliding. At the same time, the spring 88 provides an elastic force to make the clamping plate 86 more stable when clamping the circuit board. In addition, when multiple bases 1 need to be connected, simply insert the slot 91 into the bottom of the adjacent base 1 and push the movable block 96 and the limiting block 94 through the movable plate 97 to move and lock the limiting block 94 within the mounting groove 92. Spring 2 93 can provide a downward elastic force, making the limiting block 94 more firmly locked in the mounting groove 92. In this way, multiple bases 1 can be quickly connected to form an integral fixture, which is suitable for FPCA reflow production of different sizes. The above is the working process of the whole device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A FPCA furnace special fixture, comprising a base (1), characterized in that: A plug (2) is provided at the bottom of one side of the base (1), a frame (3) is provided at the top of the inner wall of the base (1), a strip groove (4) is provided around the frame (3), a movable plate (5) is closely attached to the upper end of the frame (3), a baffle (6) is bolted to the lower end of the movable plate (5), a movable plate (7) is slidably connected to the upper end of the movable plate (5), a pressing mechanism (8) is slidably connected to the upper end of the movable plate (7), a connecting mechanism (9) is fixedly connected to the bottom of the other side of the base (1), and studs (10) are detachably connected to both sides of the upper end of the movable plate (7); the pressing mechanism (8) The bracket (81) is included. The lower end of the bracket (81) is in close contact with the upper end of the movable plate (7). The inner wall of the bracket (81) is provided with bolts (82). The outer wall of the bolts (82) is provided with nuts (83). The other side of the bracket (81) is slidably connected to a pull rod (84). The upper end of the pull rod (84) is welded with a handle (85). The lower end of the pull rod (84) is fixedly connected to a pressure plate (86). The lower end of the pressure plate (86) is glued with a rubber pad (87). The outer wall of the pull rod (84) is fitted with a spring (88). The upper ends of the pressure plate (86) are fixedly connected to two sliding rods (89).

2. The FPCA furnace special fixture according to claim 1, wherein: One side of the insert (2) is fixedly connected to the bottom of one side of the base (1), and the outer wall of the frame (3) is fixedly connected to the top of the inner wall of the base (1).

3. The FPCA furnace special fixture according to claim 1, wherein: The inner wall of the bracket (81) is inserted into the outer wall of the bolt (82), and the outer wall of the bolt (82) is threaded into the inner wall of the nut (83).

4. The FPCA furnace special fixture according to claim 3, wherein: The spring (88) is disposed between the lower end of the bracket (81) and the pressure plate (86) and is fixedly connected to it.

5. The FPCA furnace special fixture according to claim 1, wherein: The connecting mechanism (9) includes a slot (91), the outer wall of the slot (91) is embedded and connected to the bottom of the other side of the base (1), the upper end of the slot (91) is provided with a mounting groove (92), the inner top wall of the mounting groove (92) is provided with a spring (93), the lower end of the spring (93) is fixedly connected to a limiting block (94), a movable groove (95) is opened on one side of the mounting groove (92), a movable block (96) is fixedly connected to the side of the limiting block (94) near the movable groove (95), and a movable plate (97) is fixedly connected to the side of the movable block (96) away from the limiting block (94).

6. The FPCA furnace special fixture according to claim 5, wherein: The upper end of the slot (91) is embedded and connected to the lower end of the mounting groove (92), and the inner top wall of the mounting groove (92) is fixedly connected to the upper end of the second spring (93).

7. The FPCA furnace special fixture according to claim 5, wherein: One side of the movable block (96) extends through the movable groove (95) to one side of the base (1) and is connected to the movable plate (97).

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