Multi-type product makeup wave crest jig

Abstract

The utility model discloses a multi-type product makeup wave crest jig, which comprises a jig base and a gland above the jig base, a concave step is arranged on the surface of the jig base, and a first placing groove, a second placing groove, a third placing groove and a fourth placing groove which are longitudinally arranged are arranged in the concave step. The first containing groove, the second containing groove, the third containing groove and the fourth containing groove are different in shape, first positioning holes are formed in the four corners of the jig base, a plurality of second positioning holes are formed in the surface of the concave step, positioning columns are arranged on the bottom face of the pressing cover, and a jacking mechanism used for pressing a circuit board is arranged on the surface of the pressing cover. The multi-type product makeup wave crest jig can meet the use requirements of circuit boards of various types when in use, is convenient for coping with the production of various small-quantity products, can ensure the stability of the circuit boards in the welding process, avoids the looseness and inclination of the circuit boards in the welding process, is favorable for improving the production quality and efficiency, and is suitable for popularization and use.

Description

Technical Field

[0001] This utility model relates to the field of circuit board printing technology, and in particular to a wave crimping fixture for multi-product panel printing. Background Technology

[0002] Wave soldering is a method of soldering electronic components to printed circuit boards (PCBs) using molten solder waves. The principle is to spray molten solder into wave-like solder peaks using an electric or electromagnetic pump. The PCB containing the components passes through the solder waves, and the leads or solder pads of the components come into contact with and are wetted by the solder, thus achieving mechanical and electrical connections.

[0003] Normal wave soldering fixtures are one fixture per product. However, for diverse and small-batch products, the traditional method is to carve molds one by one. Carving molds one by one is not only costly but also increases manpower and has low efficiency. In addition, traditional fixtures cannot constrain and fix the circuit board, which makes the circuit board prone to tilting and loosening during the soldering process, affecting the soldering quality and resulting in unsatisfactory performance. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems by providing a wave soldering fixture that can meet the needs of various types of circuit boards, facilitates the production of diverse and small-batch products, and ensures the stability of the circuit board during the soldering process, preventing the circuit board from becoming loose or tilted during soldering, thus improving production quality and efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a multi-product wave crimping fixture, comprising a fixture base and a pressure cap above the fixture base. The surface of the fixture base is provided with a recessed step, and the recessed step is provided with longitudinally arranged placement grooves one, two, three, and four. The shapes of placement grooves one, two, three, and four are all different. The four corners of the fixture base are provided with first positioning holes, the surface of the recessed step is provided with multiple second positioning holes, the bottom surface of the pressure cap is provided with positioning posts that cooperate with the first and second positioning holes, and the surface of the pressure cap is provided with a clamping mechanism for pressing the circuit board.

[0006] Preferably, the positioning post includes a first positioning post and a second positioning post, wherein the first positioning post corresponds to a first positioning hole and the second positioning post corresponds to a second positioning hole.

[0007] Preferably, the bottom end of the first positioning post is provided with a metal block, and the first positioning hole is provided with a magnet for adsorbing the metal block, and the pressure cap is positioned by adsorption by the magnet.

[0008] Preferably, the base of the fixture is provided with multiple clearance notches I on both sides, and the pressure cap is provided with clearance notches II corresponding to the clearance notches I on both sides.

[0009] Preferably, the clamping mechanism comprises four sets, each set including two vertically arranged optical shafts, with slip rings fitted on the optical shafts, and a lifting rod between the two slip rings. Multiple fixing rods pass through the lifting rod, and a pressure plate is provided at the bottom end of the fixing rod. A threaded screw is provided in the middle of the lifting rod, with the bottom of the screw fixed to the surface of the pressure cap. A compression spring is provided on the circumference of the screw below the lifting rod, and a locking nut that cooperates with the screw is provided on the surface of the lifting rod. When the locking nut is tightened, the compression spring is compressed.

[0010] Preferably, the fixed rod and the lifting rod are fixedly connected through each other, and a through hole is provided directly below the pressure table. The through hole corresponds one-to-one with the placement slot 1, placement slot 2, placement slot 3 and placement slot 4.

[0011] Preferably, the pressing platform is shaped like a frustum conical, and a rubber layer is provided at the bottom of the pressing platform.

[0012] This utility model discloses a multi-product wave soldering fixture, including a fixture base and a pressure cap above the fixture base. The surface of the fixture base has a recessed step, and the recessed step has longitudinally arranged placement grooves one, two, three, and four. The shapes of placement grooves one, two, three, and four are all different. The four corners of the fixture base have first positioning holes, and the surface of the recessed step has multiple second positioning holes. The bottom surface of the pressure cap has positioning posts, and the surface of the pressure cap has a clamping mechanism for holding the circuit board. Compared with the prior art, this multi-product wave soldering fixture can meet the needs of various circuit boards, making it easy to handle the production of diverse and small-batch products. It can also ensure the stability of the circuit board during the soldering process, preventing the circuit board from loosening or tilting during soldering, which is beneficial to improving production quality and efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the wave crest fixture for multiple products of this utility model.

[0014] Figure 2 This is a structural diagram of the base of the wave crest jig used in the multi-product assembly of this utility model.

[0015] Figure 3 This is a schematic diagram of the pressure cap structure in the wave crimping fixture for multiple products of this utility model. Figure 1 .

[0016] Figure 4 This is a schematic diagram of the pressure cap structure in the wave crimping fixture for multiple products of this utility model. Figure 2 .

[0017] Figure 5 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Fixture base; 11. Clearance notch one; 12. Recessed step; 13. Placement slot one; 14. Placement slot two; 15. Placement slot three; 16. Placement slot four; 17. First positioning hole; 18. Second positioning hole; 2. Pressure cap; 21. Clearance notch two; 22. Through hole; 23. First positioning post; 24. Second positioning post; 3. Tightening mechanism; 31. Optical shaft; 32. Slip ring; 33. Lifting rod; 34. Fixing rod; 35. Pressure table; 36. Screw; 37. Compression spring; 38. Locking nut. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] Please refer to Figure 1-5 A multi-product wave crimping fixture includes a fixture base 1 and a pressure cap 2 above the fixture base 1. The surface of the fixture base 1 is provided with a recessed step 12. The recessed step 12 is provided with longitudinally arranged placement grooves 13, 14, 15, and 16. The shapes of the placement grooves 13, 14, 15, and 16 are all different. The four corners of the fixture base 1 are provided with first positioning holes 17. The surface of the recessed step 12 is provided with multiple second positioning holes 18. The bottom surface of the pressure cap 2 is provided with positioning posts that cooperate with the first positioning holes 17 and the second positioning holes 18. The surface of the pressure cap 2 is provided with a clamping mechanism 3 for pressing the circuit board.

[0021] In this embodiment, different types of circuit boards can be placed in placement slots 13, 14, 15, and 16, which is convenient for use with a variety of products in small quantities. During the production process, it is not necessary to open molds for each product individually, which can greatly improve production costs. After different types of circuit boards are placed in their corresponding placement slots, the pressure cover 2 is closed, and then the circuit board is held in place by the clamping mechanism 3. After being held in place, the circuit board is fixed to ensure that it does not float or tilt, which is beneficial to improving the wave soldering quality and production efficiency. When in use, the side of the circuit board to be soldered is facing down, and the circuit board is wave soldered below the fixture base 1.

[0022] In this embodiment, the positioning posts include a first positioning post 23 and a second positioning post 24. The first positioning post 23 corresponds to the first positioning hole 17, and the second positioning post 24 corresponds to the second positioning hole 18. After the positioning posts and positioning holes are engaged, the bottom surface of the cover 2 contacts the circuit board. The bottom end of the first positioning post 23 is provided with a metal block, and the first positioning hole 17 is provided with a magnet to attract the metal block. When the cover 2 is closed, the metal block at the bottom of the first positioning post 23 can be attracted by the magnet. After attraction, the first positioning post 23 falls into the first positioning hole 17, and the second positioning post 24 falls into the second positioning hole 18, thus achieving the closing.

[0023] In addition, the base of the fixture 1 is provided with multiple clearance notches 11 on both sides, and the pressure cover 2 is provided with clearance notches 21 on both sides corresponding to the clearance notches 11. The notches are reserved during installation to prevent the fixture from getting stuck and unable to be installed.

[0024] In this utility model, the clamping mechanism 3 consists of four sets, which correspond to placement slot one, placement slot two, placement slot three, and placement slot four, respectively. Each clamping mechanism includes two vertically arranged optical shafts 31. Slip rings 32 are fitted onto the optical shafts 31, and a lifting rod 33 is provided between the two slip rings 32. The lifting rod 33 can move up and down along the optical shaft via the slip rings 32 at both ends. Multiple fixing rods 34 pass through the lifting rod 33, and a pressure plate 35 is provided at the bottom end of each fixing rod 34. The lifting rod 33 has a through screw 36 in the middle. The bottom of the screw 36 is fixed to the surface of the pressure cover 2. A compression spring 37 is provided on the circumference of the screw 36 below the lifting rod 33. The bottom of the compression spring is fixed to the surface of the pressure cover, and the top is fixed to the bottom surface of the lifting rod. The compression spring 37 provides elastic support for the lifting rod 33 (and the fixed rod and pressure table). The surface of the lifting rod 33 is provided with a locking nut 38 that cooperates with the screw 36. When the locking nut 38 is tightened, it compresses the compression spring 37.

[0025] The fixed rod 34 is fixedly connected to the lifting rod through it. A through hole 22 is provided directly below the pressure platform 35. The through hole 22 corresponds one-to-one with the placement slot 13, placement slot 24, placement slot 35 and placement slot 4 16. The pressure platform 35 is shaped like a frustum cone and has a rubber layer at its bottom.

[0026] Since the screw 36 engages with the locking nut 38, rotating the locking nut 38 will compress the lower spring 37, causing the lifting rod 33 (and the fixing rod and pressure table) to move downwards as a whole. When in use, the corresponding circuit board is placed in the slot, and rotating the locking nut 38 will press the lifting rod 33 and the spring, causing the whole to move further downwards, so that the pressure table 35 presses and constrains the circuit board. Similarly, after welding is completed, rotating the locking nut in the opposite direction will cause the tension of the spring to push the lifting rod 33 upwards, thereby causing the pressure table 35 to disengage from the circuit board.

[0027] In other words, when the spring 37 is pressed and fixed, it applies an upward force to the lifting rod 33, and the locking nut 38 restricts the upward movement of the lifting rod 33 to constrain the whole, thereby achieving the whole balance. This effectively fixes the circuit board during wave soldering, which can greatly improve the soldering efficiency and quality.

[0028] In addition, the rubber layer can prevent wear and tear on the circuit board.

[0029] The four clamping mechanisms can be used individually or simultaneously. Each through hole 22 is directly opposite the center of the placement slot, which facilitates the pressure table 35 to effectively constrain the circuit board.

[0030] Based on the above embodiments, placement slot 13, placement slot 2 14, placement slot 3 15 and placement slot 4 16 correspond to four types of circuit boards. The placement slots in the fixture base are engraved with molds that are one-to-one with the size of the circuit boards.

[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A wave crimping fixture for multiple product layouts, characterized in that, The utility model provides a circuit board pressing device, including tool base and the gland above tool base, the surface of tool base is equipped with recessed step, the recessed step is equipped with longitudinal arrangement and places slot one, places slot two, places slot three and places slot four, the shape of places slot one, places slot two, places slot three and places slot four are all different, the four corners of tool base are equipped with first positioning hole, the surface of recessed step is equipped with a plurality of second positioning hole, the bottom surface of gland is equipped with the positioning post of cooperation with first positioning hole and second positioning hole, the surface of gland is equipped with the jacking mechanism for pressing circuit board.

2. The multi-product imposition wave peak fixture of claim 1, wherein, The positioning post includes first positioning post and second positioning post, the first positioning post corresponds with the first positioning hole, and the second positioning post corresponds with the second positioning hole.

3. The multi-product imposition wave peak fixture of claim 2, wherein, The bottom end of the first positioning post is provided with a metal block, the first positioning hole is provided with a magnet for adsorbing the metal block, and the gland is positioned by the magnet adsorption.

4. The multi-product imposition wave peak fixture of claim 1, wherein, The two sides of the tool base are provided with a plurality of avoiding notches one, and the two sides of the gland are provided with avoiding notches two corresponding to the avoiding notches one.

5. The multi-product imposition wave peak fixture of claim 1, wherein, The jacking mechanism is four groups, each group of jacking mechanism includes two vertical light axes, the light axis is provided with a slip ring, the two slip rings are provided with a lifting rod, the lifting rod is provided with a plurality of fixed rods, the bottom end of the fixed rod is provided with a pressing table, the middle of the lifting rod is provided with a screw rod, the bottom of the screw rod is fixed on the surface of the gland, the circumference of the screw rod below the lifting rod is provided with a compression spring, the surface of the lifting rod is provided with a locking nut matched with the screw rod, and the locking nut is tightened to compress the compression spring.

6. The multi-product imposition wave peak fixture of claim 5, wherein, The fixed rod is fixedly connected with the lifting rod, the pressing table is provided with a through hole below, and the through hole corresponds to the placing slot one, the placing slot two, the placing slot three and the placing slot four one by one.

7. The multi-product imposition wave peak fixture of claim 6, wherein, The pressing table is in the shape of a conical table, and the bottom of the pressing table is provided with a rubber layer. The utility model discloses a circuit board pressing device, including tool base and the gland above tool base, the surface of tool base is equipped with recessed step, the recessed step is equipped with longitudinal arrangement and places slot one, places slot two, places slot three and places slot four, the shape of places slot one, places slot two, places slot three and places slot four are all different, the four corners of tool base are equipped with first positioning hole, the surface of recessed step is equipped with a plurality of second positioning hole, the bottom surface of gland is equipped with the positioning post of cooperation with first positioning hole and second positioning hole, the surface of gland is equipped with the jacking mechanism for pressing circuit board.

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