Wave-soldering jig for PCB (Printed Circuit Board) with two surface-mounted surfaces

Abstract

The utility model relates to the field of wave soldering, in particular to a two-sided patch PCB (printed circuit board) over-wave soldering jig, which is characterized in that a transverse chute is arranged in the length direction of a jig body so as to install a plurality of guide rods, a plurality of bidirectional support pieces are arranged in the middle of the guide rods, and a vertical chute is arranged in the width direction of the jig body so as to install a plurality of unidirectional support pieces. The guide rod capable of moving transversely is assembled on the jig body, the supporting pieces capable of being vertically adjusted are arranged on the outer edge of the guide rod and the outer edge of the jig, the supporting pieces are made of the composite stone so as to improve the high temperature resistance, and in the actual using process, the positions of the guide rod and the supporting pieces can be freely adjusted so as to meet the production requirement. And the rotating block, the arc-shaped reed and other assemblies are arranged on the supporting piece so that rapid disassembly and assembly can be achieved, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of wave soldering technology, and in particular to a wave soldering fixture for two-sided surface mount PCBs. Background Technology

[0002] Wave soldering is a soldering process that forms a wave of molten solder that meets design requirements, and then passes a circuit board pre-loaded with components through this wave to achieve mechanical and electrical connections between the component solder tips or leads and the circuit board pads.

[0003] Currently, wave soldering fixtures are often used to assemble PCB boards during wave soldering. Some traditional fixtures can only assemble boards of a single specification, which cannot meet production needs. At the same time, since the fixtures need to come into contact with high-temperature molten solder during production, the support components of traditional fixtures are prone to deformation, which affects the installation stability of the PCB boards. Therefore, improvements are urgently needed. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wave soldering fixture for two-sided surface mount PCBs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wave soldering fixture for double-sided surface mount PCBs includes a fixture body. The fixture body has a transverse groove along its length to install multiple guide rods. Multiple bidirectional support members are installed in the middle of the guide rods. The fixture body also has a vertical groove along its width to install multiple unidirectional support members.

[0007] The bidirectional support component includes a slider, a lower support plate, an upper limit plate, and a flexible strip. The slider has an "M" shaped cross-section, and rotating blocks are symmetrically mounted on both sides of the middle of the slider. The rotating blocks have protrusions on both sides to connect with the guide rod.

[0008] A pair of lower support plates are symmetrically installed on both sides of the outer wall of the slider component. An upper limit plate is installed obliquely above the lower support plates. The upper limit plate and the lower support plates are used to clamp the edge of the workpiece plate.

[0009] In addition, a preferred structure is that mounting blocks are provided on both sides of the guide rod to limit its sliding installation in the transverse groove, and a locking bolt is screwed into the middle of the transverse groove.

[0010] Furthermore, in a preferred configuration, a slider is slidably mounted at the center of the guide rod, and a protrusion is provided on a rotating block located at the center of the slider. The protrusion is used to engage with a groove opened on the inner wall of the guide rod to achieve horizontal limiting sliding.

[0011] Furthermore, in a preferred configuration, the unidirectional support member and the bidirectional support member are composed of the same structural components, and the unidirectional support member, compared to the bidirectional support member, is only provided with a lower support plate and an upper limit plate assembly on one side.

[0012] Furthermore, in a preferred configuration, the bottom side of the rotating block is rotatably mounted on the bottom wall of the slider by a pin, and the inner wall of the rotating block is provided with an arc-shaped spring sheet to press against the inner wall of the slider.

[0013] Furthermore, in a preferred configuration, the upper limit plate is V-shaped, and a flexible strip is embedded inside the upper limit plate, with one end of the flexible strip connected to the outer wall of the slider component.

[0014] In addition, a preferred structure is that a baffle is slidably installed in the middle of the fixture body via a vertical groove, and the baffle is located below the guide rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this utility model, the fixture body is equipped with a guide rod that can move laterally, and both the guide rod and the outer edge of the fixture are provided with vertically adjustable support components. The support components are made of synthetic stone to improve high temperature resistance. In actual use, the positions of the guide rod and support components can be freely adjusted to meet production needs. The support components are equipped with components such as rotating blocks and arc-shaped springs to achieve quick assembly and disassembly, effectively improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the wave soldering fixture for a two-sided surface mount PCB board proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the bidirectional support structure proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the bidirectional support component proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the unidirectional support component proposed in this utility model.

[0021] In the diagram: 1. Fixture body; 2. Horizontal slide groove; 3. Vertical slide groove; 4. Mounting block; 5. Locking bolt; 6. Guide rod; 61. Groove; 7. One-way support component; 8. Two-way support component; 81. Sliding block; 82. Lower support plate; 83. Upper limit plate; 84. Flexible strip; 9. Baffle; 10. Rotating block; 11. Arc-shaped spring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A wave soldering fixture for two-sided surface mount PCBs includes a fixture body 1. The fixture body 1 has a transverse groove 2 in the length direction to install multiple guide rods 6. Multiple bidirectional support members 8 are installed in the middle of the guide rods 6. The fixture body 1 also has a vertical groove 3 in the width direction to install multiple unidirectional support members 7.

[0024] Furthermore, the bidirectional support member 8 includes a slider member 81, a lower support plate 82, an upper limit plate 83, and a flexible strip 84. The slider member 81 has an "M" shaped cross section. Rotating blocks 10 are symmetrically and rotatably installed on both sides of the middle part of the slider member 81. The rotating blocks 10 have protrusions on both sides to connect with the guide rod 6.

[0025] Furthermore, a pair of lower support plates 82 are symmetrically installed on both sides of the outer wall of the slider 81, and an upper limit plate 83 is installed obliquely above the lower support plate 82. The upper limit plate 83 and the lower support plate 82 are used to clamp the edge of the workpiece plate.

[0026] Furthermore, mounting blocks 4 are provided on both sides of the guide rod 6 to limit its sliding installation in the transverse slide groove 2. A locking bolt 5 is screwed into the middle of the transverse slide groove 2 to lock it in order to ensure processing stability.

[0027] Furthermore, a slider 81 is slidably mounted in the middle of the guide rod 6, and a protrusion is provided on the rotating block 10 located in the middle of the slider 81. The protrusion is used to engage with the groove 61 opened in the inner wall of the guide rod 6 to achieve horizontal limiting sliding.

[0028] Furthermore, the unidirectional support 7 and the bidirectional support 8 are composed of the same structural components. Compared with the bidirectional support 8, the unidirectional support 7 is only provided with a lower support plate 82 and an upper limit plate 83 assembly on one side.

[0029] Furthermore, the bottom side of the rotating block 10 is rotatably mounted on the bottom wall of the slider 81 by a pin, and the inner wall of the rotating block 10 is provided with an arc-shaped spring 11 to press against the inner wall of the slider 81, thereby causing the rotating block 10 to automatically rotate and reset via the arc-shaped spring 11.

[0030] Furthermore, the upper limit plate 83 is V-shaped, and a flexible strip 84 is embedded inside the upper limit plate 83, with one end of the flexible strip 84 connected to the outer wall of the slider 81.

[0031] Furthermore, a baffle 9 is slidably installed in the middle of the fixture body 1 via a vertical groove 3, and the baffle 9 is located below the guide rod 6.

[0032] In this embodiment, the positions of the guide rod 6, the one-way support 7, and the two-way support 8 are adjusted to assemble the PCB board to be processed. Both the one-way support 7 and the two-way support 8 are provided with a lower support plate 82 for supporting the workpiece, and an upper limit plate 83 is provided above the lower support plate 82 to clamp and limit the workpiece surface, effectively improving the installation stability.

[0033] Meanwhile, the number of support components can be freely adjusted according to production needs. During disassembly and assembly, only the slider component 81 needs to be pressed (pulled out) with force. The rotating blocks 10 on both sides of the slider component 81 are squeezed and deflected, and then reset through the arc-shaped spring 11, so that the slider component 81 can be quickly disassembled and assembled.

[0034] Adjusting the guide rod 6 to the designated position can change the assembly dimensions on both sides of the guide rod 6, thereby allowing the installation of a PCB board of the corresponding size. The "corresponding size" refers to the standard specifications of the PCB board processed on the production site, which may vary depending on production needs, and is not an arbitrary size.

[0035] In practical applications, both the lower support plate 82 and the upper limit plate 83 are made of synthetic stone, and a flexible strip 84 is embedded in the middle of the upper limit plate 83, which allows it to deflect at a certain angle to clamp the workpiece.

[0036] In practical applications, locking bolts 5 are provided on the unidirectional support 7, bidirectional support 8, mounting block, and baffle 9 to achieve the function of moving and locking. This is a conventional setting in this field and will not be explained further.

[0037] In practical applications, the locking function of the mounting block 4 is achieved by tightening the locking bolt 5, which is easy to understand intuitively and will not be explained further.

[0038] It is worth noting that, compared to the bidirectional support member 8, the unidirectional support member 7 only has a support plate and a limiting plate in one direction, while the bidirectional support member 8 has two directions. This is easy to understand intuitively and will not be explained further.

[0039] It is worth noting that the specific operating procedures and work specifications for wave soldering, which were not explained in detail above, are already existing technologies and are common knowledge known to those skilled in the art. Therefore, they will not be elaborated upon.

[0040] 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 two-sided patch PCB wave soldering jig, comprising a jig body (1), characterized in that, The length direction of the jig body (1) is provided with a transverse sliding groove (2) to install a plurality of guide rods (6), the middle part of the guide rod (6) is provided with a plurality of bidirectional supporting pieces (8), and the width direction of the jig body (1) is provided with a vertical sliding groove (3) to install a plurality of unidirectional supporting pieces (7). The bidirectional supporting piece (8) comprises a sliding block (81), a lower supporting plate (82), an upper limiting plate (83) and a flexible strip (84), wherein the cross section of the sliding block (81) is "M" type, the middle part of the sliding block (81) is symmetrically provided with a rotating block (10), and the two sides of the rotating block (10) are provided with protrusions to butt joint the guide rod (6). The outer wall of the sliding block (81) is symmetrically provided with a pair of lower supporting plates (82), the upper side of the lower supporting plate (82) is provided with an upper limiting plate (83), and the upper limiting plate (83) and the lower supporting plate (82) are used to clamp the edge of the workpiece plate.

2. The two-sided patch PCB wave soldering fixture of claim 1, wherein, The two sides of the guide rod (6) are provided with mounting blocks (4) to limit the sliding installation in the transverse sliding groove (2), and the middle part of the transverse sliding groove (2) is screwed with a locking bolt (5).

3. The two-sided patch PCB wave soldering fixture of claim 1, wherein, The middle part of the guide rod (6) is provided with a sliding block (81), the rotating block (10) provided in the middle part of the sliding block (81) is provided with a protrusion, and the protrusion is used to butt joint the groove (61) provided in the inner wall of the guide rod (6) to realize horizontal limiting sliding.

4. The two-sided patch PCB wave soldering fixture of claim 1, wherein, The unidirectional supporting piece (7) and the bidirectional supporting piece (8) are composed of the same structure, and the unidirectional supporting piece (7) is provided with only one side of the lower supporting plate (82) and the upper limiting plate (83) assembly compared with the bidirectional supporting piece (8).

5. The two-sided patch PCB wave soldering fixture of claim 1, wherein, The bottom side of the rotating block (10) is rotatably installed on the bottom wall of the sliding block (81) by a pin shaft, and the inner wall of the rotating block (10) is provided with an arc spring piece (11) to press the inner wall of the sliding block (81).

6. The two-sided patch PCB wave soldering fixture of claim 1, wherein, The upper limiting plate (83) is "V" type, and the flexible strip (84) is embedded and installed in the inner part of the upper limiting plate (83), and one end of the flexible strip (84) is connected with the outer wall of the sliding block (81).

7. The two-sided patch PCB wave soldering fixture of claim 1, wherein, The middle part of the jig body (1) is slidably provided with a baffle (9) through the vertical sliding groove (3), and the baffle (9) is arranged below the guide rod (6).

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