Circuit board surface mounting jig

Abstract

The utility model relates to the technical field of chip mounting jigs, in particular to a circuit board chip mounting jig which comprises a base, a jig table and a controller which are fixed on the base, a first pressing block which is arranged close to the right end of the jig table, and a pressing driving assembly which is used for driving the first pressing block to ascend or descend, the support is arranged above the jig table, the unfolding roller is rotatably connected to the support, the second pressing block is fixed to the right side of the unfolding roller, the first air cylinder is used for driving the second pressing block to ascend or descend, and the second air cylinder is used for driving the support to ascend or descend. The moving assembly is used for driving the second air cylinder to move left and right, and the cooling structure is arranged in the jig table. The device not only can automatically unfold and fix the rolled flexible circuit board, is more convenient to use, but also can assist in cooling and solidifying solder paste after surface mounting and welding are completed, and improves the production efficiency of the flexible circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of patch fixtures, in particular to a circuit board patch fixture. Background Art

[0002] Since flexible circuit boards are prone to curling up, a specific jig is needed to unfold and clamp the flexible circuit board when applying solder paste to the flexible circuit board. For example, the Chinese patent with the existing authorization announcement number CN210670827U discloses a flexible circuit board patch jig, which clamps the circuit board in the middle by cooperating with the bottom plate and the pressure plate to prevent the circuit board from being misplaced or curling when applying solder paste. The bottom plate is provided with elastic protrusions, which can insert the circuit board into the positioning hole of the circuit board. At least two elastic protrusions are used to position the circuit board. The magnets provided on the bottom plate clamp the circuit board through the magnetic suction pressure plate, so the circuit board is not prone to curling.

[0003] However, in actual application, the above device still has the following problems: when using the above fixture, the rolled-up flexible circuit board needs to be manually unfolded and pressed down so that the flexible circuit board can be pressed and fixed by the pressure plate, which is not convenient to use; in addition, after the mounting and soldering of the flexible circuit board is completed, it needs to be naturally cooled to allow the solder paste to solidify, so that the patch components can be fixed on the circuit board, and the circuit board is clamped between the base plate and the pressure plate, and the natural cooling efficiency is low, so that the time for the solder paste to cool and solidify is too long, which reduces the production efficiency of the flexible circuit board. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit board patch fixture to address the above-mentioned deficiencies, which can not only automatically unfold and fix the rolled-up flexible circuit board, making it more convenient to use, but also assist in cooling and solidifying the solder paste after the mounting and soldering is completed, thereby improving the production efficiency of the flexible circuit board.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A circuit board patch fixture comprises a base, a fixture table and a controller fixed on the base, a clamping block 1 arranged near the right end of the fixture table, a clamping drive assembly used to drive the clamping block 1 to rise or fall, a bracket arranged above the fixture table, an unwinding roller rotatably connected to the bracket, a clamping block 2 fixed on the right side of the unwinding roller, a cylinder 1 used to drive the clamping block 2 to rise or fall, a cylinder 2 used to drive the bracket to rise or fall, a moving assembly used to drive the cylinder 2 to move left and right, and a cooling structure arranged in the fixture table, the clamping drive assembly and the moving assembly are both installed on the base, the cylinder 1 is fixed on the bracket, and the cylinder 1, cylinder 2, the clamping drive assembly, the cooling structure and the moving assembly are all electrically connected to the controller.

[0007] Furthermore, the clamping drive assembly includes an L-shaped abutment plate fixed to the right end of the jig table, which is used to drive the clamping block 1 to rise or fall using a cylinder 3, wherein the cylinder 3 is fixed to the horizontal part of the L-shaped abutment plate, and the clamping block 1 slides up and down along the vertical part of the L-shaped abutment plate, and the bottom end of the vertical part of the L-shaped abutment plate is fixed to the base.

[0008] Furthermore, the moving assembly includes a linear motor fixed on the base, the movable end of the linear motor is drivingly connected to a slide, a connecting frame is provided on the slide, and the cylinder 2 is fixed on the connecting frame.

[0009] Furthermore, a water cooler is provided on one side of the base; the cooling structure includes a cooling cavity arranged in the jig table, a cold water pipe connecting the water outlet of the water cooler and the water inlet of the cooling cavity, a hot water pipe connecting the water outlet of the cooling cavity and the water inlet of the water cooler, a temperature sensing sensor arranged in the cooling cavity, a pump body is provided at one end of the hot water pipe extending into the cooling cavity, valve bodies are respectively provided on the cold water pipe and the hot water pipe, and cooling water is provided in the water cooler, the cold water pipe, the hot water pipe and the cooling cavity.

[0010] Furthermore, the fixture table is made of a high thermal conductivity material.

[0011] Furthermore, the bottom surface of the first pressing block, the bottom surface of the second pressing block, and the outer side surface of the unfolding roller are respectively provided with anti-skid shock-absorbing pads.

[0012] The beneficial effects of the utility model are:

[0013] The flexible circuit board is then rolled over the jig and the clamp is moved down to hold the left end of the flexible circuit board. The utility model can automatically unfold and fix the rolled-up flexible circuit board, which is more convenient to use. It can also assist in cooling and solidifying the solder paste after soldering is completed, thereby improving the production efficiency of the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is the front view of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, a circuit board patch fixture includes a base 1, a fixture table 2 and a controller fixed on the base 1, a clamping block 3 arranged near the right end of the fixture table 2, a clamping drive component used to drive the clamping block 3 to rise or fall, a bracket 4 arranged above the fixture table 2, an unwinding roller 5 rotatably connected to the bracket 4, a clamping block 6 fixed on the right side of the unwinding roller 5, a cylinder 61 used to drive the clamping block 6 to rise or fall, a cylinder 41 used to drive the bracket 4 to rise or fall, a moving component used to drive the cylinder 41 to move left and right, and a cooling structure arranged in the fixture table 2, the clamping drive component and the moving component are both installed on the base 1, the cylinder 61 is fixed on the bracket 4, and the cylinder 61, the cylinder 41, the clamping drive component, the cooling structure and the moving component are all electrically connected to the controller.

[0018] When in use, one end of the flexible circuit board 100 is passed through between the unfolding roller 5 and the fixture table 2 and passed to the bottom of the clamping block 3. The clamping drive component drives the clamping block 3 to move down to press the right end of the flexible circuit board 100. The cylinder 2 41 drives the bracket 4 to move down, so that the unfolding roller 5 is against the flexible circuit board 100. The moving component drives the cylinder 2 41 to drive the bracket 4 to move. The unfolding roller 5 rolls along the flexible circuit board 100 from right to left to unfold it. After the flexible circuit board 100 is fully unfolded, the cylinder 1 61 drives the clamping block 2 6 to descend to press the left end of the flexible circuit board 100. The utility model can automatically unfold and fix the rolled-up flexible circuit board 100, which is more convenient to use. It can also assist in cooling and solidifying the solder paste after the mounting and soldering is completed, thereby improving the production efficiency of the flexible circuit board 100.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the clamping drive assembly includes an L-shaped abutment plate 71 fixed to the right end of the jig table 2, and a cylinder three 72 used to drive the clamping block 3 to rise or fall. The cylinder three 72 is fixed to the horizontal part of the L-shaped abutment plate 71, and the clamping block 3 slides up and down along the vertical part of the L-shaped abutment plate 71. The bottom end of the vertical part of the L-shaped abutment plate 71 is fixed on the base 1; in this embodiment, the piston rod head of the cylinder three 72 is extended and retracted to drive the clamping block 3 to rise or fall.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the moving component includes a linear motor 81 fixed on the base 1, the movable end of the linear motor 81 is driven and connected to a slide 82, a connecting frame 83 is provided on the slide 82, and the cylinder 2 41 is fixed on the connecting frame 83; in this embodiment, the linear motor 81 drives the slide 82 to drive the connecting frame 83 and the cylinder 2 41 to move left and right.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a water cooler 9 is provided on one side of the base 1; the cooling structure includes a cooling chamber arranged in the fixture table 2, a cold water pipe 101 connecting the water outlet end of the water cooler 9 and the water inlet end of the cooling chamber, a hot water pipe 102 connecting the water outlet end of the cooling chamber and the water inlet end of the water cooler 9, a temperature sensing sensor arranged in the cooling chamber, a pump body is provided at one end of the hot water pipe 102 extending into the cooling chamber, valve bodies are provided on the cold water pipe 101 and the hot water pipe 102 respectively, and cooling water is provided in the water cooler 9, the cold water pipe 101, the hot water pipe 102 and the cooling chamber; in this embodiment, when the temperature sensing sensor senses that the water temperature in the cooling chamber is too high, the cooling chamber is replaced with cold water through the pump body, the hot water pipe 102, the water cooler 9 and the cold water pipe 101, the fixture table 2 is cooled by the cold water, and the solder paste on the flexible circuit board 100 after the mounting and welding is completed is assisted by the fixture table 2 to cool down, so that it solidifies faster.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the fixture table 2 is made of a high thermal conductivity material; in this embodiment, when the fixture table 2 is made of a high thermal conductivity material, the cooling effect of the fixture table 2 is better.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the bottom surface of the pressing block 1 3, the bottom surface of the pressing block 2 6, and the outer side surface of the unfolding roller 5 are respectively provided with anti-slip shock-absorbing pads; in this embodiment, when the bottom surface of the pressing block 1 3, the bottom surface of the pressing block 2 6, and the outer side surface of the unfolding roller 5 are respectively provided with anti-slip shock-absorbing pads, it can effectively prevent the pressing block 1 3, the pressing block 2 6 and the unfolding roller 5 from moving downward and crushing the flexible circuit board 100.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A circuit board patch fixture, characterized in that: The invention comprises a base (1), a jig table (2) and a controller fixed on the base (1), a pressing block (3) arranged near the right end of the jig table (2), a pressing drive assembly used to drive the pressing block (3) to rise or fall, a bracket (4) arranged above the jig table (2), an unfolding roller (5) rotatably connected to the bracket (4), and a pressing block (6) fixed on the right side of the unfolding roller (5), a pneumatic control assembly used to drive the pressing block (6) to rise or fall. Cylinder 1 (61), cylinder 2 (41) used to drive the support (4) to rise or fall, a moving component used to drive the cylinder 2 (41) to move left and right, and a cooling structure arranged in the fixture table (2), the clamping drive component and the moving component are both installed on the base (1), the cylinder 1 (61) is fixed on the support (4), and the cylinder 1 (61), cylinder 2 (41), the clamping drive component, the cooling structure and the moving component are all electrically connected to the controller.

2. A circuit board patch fixture according to claim 1, characterized in that: The clamping drive assembly comprises an L-shaped abutment plate (71) fixed to the right end of the jig table (2), and a cylinder three (72) used to drive the clamping block one (3) to rise or fall. The cylinder three (72) is fixed to the horizontal part of the L-shaped abutment plate (71), and the clamping block one (3) slides up and down along the vertical part of the L-shaped abutment plate (71). The bottom end of the vertical part of the L-shaped abutment plate (71) is fixed to the base (1).

3. A circuit board patch fixture according to claim 1, characterized in that: The moving assembly comprises a linear motor (81) fixed on the base (1); the movable end of the linear motor (81) is drivingly connected to a slide seat (82); a connecting frame (83) is provided on the slide seat (82); and the second cylinder (41) is fixed on the connecting frame (83).

4. A circuit board patch fixture according to claim 1, characterized in that: A water cooler (9) is arranged on one side of the base (1); the cooling structure comprises a cooling chamber arranged in the fixture table (2), a cold water pipe (101) connecting the water outlet of the water cooler (9) and the water inlet of the cooling chamber, a hot water pipe (102) connecting the water outlet of the cooling chamber and the water inlet of the water cooler (9), a temperature sensing sensor arranged in the cooling chamber, a pump body being arranged at one end of the hot water pipe (102) extending into the cooling chamber, valve bodies being arranged on the cold water pipe (101) and the hot water pipe (102), respectively, and cooling water being arranged in the water cooler (9), the cold water pipe (101), the hot water pipe (102) and the cooling chamber.

5. A circuit board patch fixture according to claim 1, characterized in that: The fixture platform (2) is made of a high thermal conductivity material.

6. A circuit board patch fixture according to claim 1, characterized in that: The bottom surface of the first pressing block (3), the bottom surface of the second pressing block (6), and the outer side surface of the unfolding roller (5) are respectively provided with anti-skid shock-absorbing pads.

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