Double-sided solder resist table frame

Abstract

The invention relates to the technical field of PCB (printed circuit board) processing devices, in particular to a double-sided solder resist table frame, which comprises a combined frame body, a cover plate arranged at the top end of the combined frame body and a PCB fixing assembly arranged in the combined frame body, and is characterized in that the combined frame body comprises a square frame, bottom frames arranged at the bottom ends of the two sides of the square frame and a middle frame arranged at the top end of the square frame; bottom frame alignment modules are fixed to the four corners of the top end of the square frame, middle frame alignment modules are fixed to the middles of the top ends of the middle frames, second top cover shafts, first middle frame module shafts and first top cover shafts are fixed to the two sides of the top ends of the middle frames on the two sides, and air cylinders and deflection rods are arranged between the first top cover shafts and the second top cover shafts. And one end of the deflection rod is fixed with the output end of the air cylinder in a sleeving manner, after the inflation strip is inflated, the inflation strip can be tightly attached to the edge of the PCB, uniform and stable clamping force is provided, and the displacement phenomenon of the PCB in the machining process is effectively avoided, so that the double-sided resistance welding process is accurately carried out, and the coating uniformity of a resistance welding agent is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board processing devices, and particularly relates to a double-sided solder mask table frame. Background Art

[0002] In the production and processing process of PCB boards, firmly clamping the PCB board is undoubtedly a key link. At present, there are various forms of clamping technologies used in PCB board processing equipment and table frames. Some traditional equipment uses the method of combining a T-shaped rod with a spring, placing the PCB board between the crossbar of the T-shaped rod and the clamping block, and using the elastic force generated by spring compression to fix the PCB board. However, this method has obvious defects. Facing PCB boards of different sizes, the compression distance of the spring is different, and the generated elastic force also varies, resulting in a better clamping effect on large-size PCB boards and a poor effect on small-size PCB boards. Moreover, as the number of uses increases, the elastic performance of the spring gradually deteriorates, making the clamping force on the PCB board weaker and difficult to stably fix the PCB board. In addition, the length of the clamping block is limited, and it is necessary to precisely abut the center of the end face of the PCB board to achieve good fixation, and the operation is quite cumbersome.

[0003] Although it can clamp the PCB board to a certain extent, improve work efficiency, and ensure the clarity of the captured image during detection, its fixation effect still cannot meet the high-precision requirements when facing complex processes such as double-sided solder mask. When performing processes such as double-sided solder mask, the PCB board is prone to displacement, resulting in uneven application of the solder mask, which greatly affects the welding quality and performance of the PCB board. Moreover, these rigid fixation methods are extremely likely to cause physical damage such as scratching on the surface of the PCB board during operation, reducing the yield rate of the product and thus increasing the production cost; among many existing PCB board clamping technologies, the more prominent common problem is the lack of an inflatable strip clamping structure. The absence of this key structure makes it difficult to stably and precisely fix the PCB board on the table frame during processing, becoming an important factor restricting the improvement of PCB board processing quality. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a double-sided solder mask table frame, which innovatively introduces an inflatable strip clamping design in the double-sided solder mask table frame. When the inflatable strip is inflated, it can closely fit the edge of the PCB board, providing uniform and stable clamping force, effectively avoiding the displacement of the PCB board during the processing process, and effectively solving the problems in the prior art.

[0006] Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] The present invention provides a double-sided solder mask table frame, which includes a combined frame body, a cover plate arranged at the top end of the combined frame body, and a PCB fixing component arranged inside the combined frame body. The combined frame body includes a square frame, bottom frames arranged at the bottom ends of both sides of the square frame, and a middle frame arranged at the top end of the square frame. Bottom frame alignment modules are fixed at the four corners of the top end of the square frame, and a middle frame alignment module is fixed at the middle of the top end of the middle frame. Second top cover shafts, first middle frame module shafts, and first top cover shafts are fixed at both sides of the top ends of the two middle frames. A cylinder and a deflection rod are arranged between the first top cover shaft and the second top cover shaft. One end of the deflection rod is sleeved and fixed with the output end of the cylinder. The cover plate includes an upper cover and an upper glass arranged inside the upper cover. A socket rod is fixed at the bottom end of the upper cover. A deflection seat is fixed at one side of the top end of the middle frame. One end of the socket rod is sleeved and fixed with the deflection seat. A second middle frame module shaft and a bottom frame module shaft are arranged at one side of the deflection seat. The PCB fixing component includes a top middle frame, a lower glass, an air inflation strip, and a PCB board. The lower glass is arranged at the top end of the top middle frame. The PCB board is arranged inside the air inflation strip. The air inflation strip is arranged at the middle of the top end of the lower glass.

[0009] Further, both sides of the middle frame are warped, and the bottom frame alignment module is arranged at the warped parts on both sides of the middle frame. The top middle frame is arranged at the top end of the middle frame alignment module, and the top end of the middle frame alignment module is at the same height as the middle frame.

[0010] Further, one end of the cylinder is fixedly connected to the second top cover shaft through a hinge seat. The output end of the cylinder is sleeved and connected to the inner side of the deflection rod through an annular structure. The inner side of the deflection rod is movably sleeved with one side of the first top cover shaft, and the end of the deflection rod is of an L-shaped structure; in addition, the flexible contact mode of the air inflation strip greatly reduces the physical damage to the surface of the PCB board, extends the service life of the PCB board, improves the production efficiency as a whole, and reduces the production cost of the enterprise.

[0011] Further, a connection groove body is opened at the middle of the top end of the deflection seat, and a pin shaft is arranged in the connection groove body. The socket rod is sleeved outside the pin shaft.

[0012] Further, the air inflation strip is arranged on the inner side wall of the lower glass, and the air inflation strip is arranged at the four edges of the lower glass; the air inflation strip clamping design is innovatively introduced in the double-sided solder mask table frame. When the air inflation strip is inflated, it can closely fit the edge of the PCB board, providing uniform and stable clamping force, effectively avoiding the displacement phenomenon of the PCB board during the processing. This enables the double-sided solder mask process to be carried out precisely, significantly improves the uniformity of the solder mask coating, and further improves the welding quality of the PCB board and reduces the defective rate.

[0013] Furthermore, multiple groups of the deflection seats are arranged in an equidistant array at the top end of one side of the middle frame, and multiple groups of the socket rods are arranged in an equidistant array at one end of the upper cover; moreover, since the collision damage that may be caused by manual operation is avoided, the service lives of the PCB board and the upper cover plate are prolonged, the equipment maintenance cost and product loss are reduced, and economic benefits are created for the enterprise in many aspects.

[0014] Furthermore, rounded corner structures are provided at the four corners of the lower glass; the upper cover plate is equipped with a pneumatic deflection device. When double-sided solder mask operation of the PCB board is required, the pneumatic device can quickly and accurately control the upper cover plate to deflect at a preset angle. This design greatly improves the operation convenience, reduces the manual operation time, and improves the production efficiency. The accurate deflection angle ensures that the solder mask is always evenly coated on the PCB board, further improving the solder mask quality.

[0015] Furthermore, the size of the upper glass is larger than that of the lower glass.

[0016] Furthermore, the end of the deflection rod is fixedly connected to the bottom end of the upper cover

[0017] Advantageous Effects

[0018] The technical solution provided by the present invention has the following advantageous effects compared with the known public technologies:

[0019] The present invention innovatively introduces an inflatable strip clamping design in the double-sided solder mask table frame. When the inflatable strip is inflated, it can closely fit the edge of the PCB board, providing uniform and stable clamping force, effectively avoiding the displacement of the PCB board during the processing. This enables the double-sided solder mask process to be carried out accurately, significantly improving the uniformity of the solder mask coating, thereby improving the welding quality of the PCB board and reducing the defective rate. In addition, the flexible contact method of the inflatable strip greatly reduces the physical damage to the surface of the PCB board, prolongs the service life of the PCB board, improves the production efficiency as a whole, and reduces the production cost of the enterprise.

[0020] The upper cover plate of this table frame is equipped with a pneumatic deflection device. When double-sided solder mask operation of the PCB board is required, the pneumatic device can quickly and accurately control the upper cover plate to deflect at a preset angle. This design greatly improves the operation convenience, reduces the manual operation time, and improves the production efficiency. The accurate deflection angle ensures that the solder mask is always evenly coated on the PCB board, further improving the solder mask quality. Moreover, since the collision damage that may be caused by manual operation is avoided, the service lives of the PCB board and the upper cover plate are prolonged, the equipment maintenance cost and product loss are reduced, and economic benefits are created for the enterprise in many aspects. Brief Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 One of the structural schematic diagrams of the present invention;

[0023] Figure 2 Another structural schematic diagram of the present invention;

[0024] Figure 3 The structural exploded view of the present invention;

[0025] Figure 4 The structural exploded view of the PCB board fixing component and the combined frame of the present invention;

[0026] Figure 5 The structural schematic diagram of the combined frame of the present invention.

[0027] The reference numerals in the figure respectively represent: 1, combined frame; 11, middle frame; 111, square frame; 12, bottom frame; 13, middle frame alignment module; 14, bottom frame alignment module; 15, second top cover shaft; 16, cylinder; 17, first top cover shaft; 171, deflection rod; 18, first middle frame module shaft; 19, second middle frame module shaft; 191, bottom frame module shaft; 2, cover plate; 21, top cover; 211, socket rod; 22, upper glass; 23, deflection seat; 3, PCB fixing component; 31, top middle frame; 32, lower glass; 33, inflation strip; 34, PCB board. Detailed Embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0029] The following further describes the present invention with reference to the embodiments.

[0030] Embodiment: A double-sided solder resist table frame, referring to the attached Figure 1 - attached Figure 5, including a combination box body 1, a cover plate 2 arranged at the top end of the combination box body 1, and a PCB fixing component 3 arranged inside the combination box body 1. The combination box body 1 includes a square box 111, bottom frames 12 arranged at the bottom ends on both sides of the square box 111, and a middle frame 11 arranged at the top end of the square box 111. Bottom frame alignment modules 14 are fixed at the four corners of the top end of the square box 111, and a middle frame alignment module 13 is fixed in the middle of the top end of the middle frame 11. Second top cover shafts 15, first middle frame module shafts 18, and first top cover shafts 17 are fixed on both sides of the top end of the middle frame 11 on both sides. A cylinder 16 and a deflection rod 171 are arranged between the first top cover shaft 17 and the second top cover shaft 15. One end of the deflection rod 171 is sleeved and fixed with the output end of the cylinder 16. The cover plate 2 includes an upper cover 21 and an upper glass 22 arranged inside the upper cover 21. A socket rod 211 is fixed at the bottom end of the upper cover 21. A deflection seat 23 is fixed at the top end on one side of the middle frame 11. One end of the socket rod 211 is sleeved and fixed with the deflection seat 23. A second middle frame module shaft 19 and a bottom frame module shaft 191 are arranged on one side of the deflection seat 23. The PCB fixing component 3 includes a top middle frame 31, a lower glass 32, an inflatable strip 33, and a PCB board 34. The lower glass 32 is arranged at the top end of the top middle frame 31. The PCB board 34 is arranged inside the inflatable strip 33. The inflatable strip 33 is arranged in the middle of the top end of the lower glass 32;

[0031] Both sides of the middle frame 11 are warped, and the bottom frame alignment modules 14 are arranged at the warped parts on both sides of the middle frame 11. The top middle frame 31 is arranged at the top end of the middle frame alignment module 13, and the top end of the middle frame alignment module 13 is at the same height as the middle frame 11; The flexible contact mode of the inflatable strip greatly reduces the physical damage to the surface of the PCB board, prolongs the service life of the PCB board, improves the production efficiency as a whole, and reduces the production cost of the enterprise.

[0032] One end of the cylinder 16 is connected and fixed to the second top cover shaft 15 through a hinge seat. The output end of the cylinder 16 is sleeved and connected to the inner side of the deflection rod 171 through an annular structure. The inner side of the deflection rod 171 is movably sleeved on one side of the first top cover shaft 17, and the end of the deflection rod 171 is an L-shaped structure; A connecting groove body is opened in the middle of the top end of the deflection seat 23, and a pin shaft is arranged in the connecting groove body. The socket rod 211 is sleeved outside the pin shaft; Since the collision damage that may be caused by manual operation is avoided, the service lives of the PCB board and the upper cover plate are prolonged, the equipment maintenance cost and product loss are reduced, and economic benefits are created for the enterprise in many aspects.

[0033] The inflatable strip 33 is arranged on the inner side wall of the lower glass 32 and is arranged at the four sides of the lower glass 32; multiple groups of the deflection seats 23 are arranged at equal intervals at the top end on one side of the middle frame 11, and multiple groups of the socket rods 211 are arranged at equal intervals at one end of the upper cover 21; the upper cover plate is equipped with a pneumatic deflection device. When double-sided solder mask operation of the PCB board is required, the pneumatic device can quickly and accurately control the upper cover plate to deflect at a preset angle. This design greatly improves the operation convenience, reduces the manual operation time, and improves the production efficiency. The accurate deflection angle ensures that the solder mask is always evenly coated on the PCB board, further improving the solder mask quality.

[0034] Rounded corner structures are provided at the four corners of the lower glass 32; the size of the upper glass 22 is larger than that of the lower glass 32; the end of the deflection rod 171 is fixedly connected to the bottom end of the upper cover 21; an inflatable strip 33 clamping design is innovatively introduced in the double-sided solder mask table frame. When the inflatable strip 33 is inflated, it can closely fit the edge of the PCB board 34 to provide uniform and stable clamping force, effectively avoiding the displacement of the PCB board 34 during the processing. This enables the double-sided solder mask process to be carried out accurately, significantly improving the uniformity of the solder mask coating, thereby improving the welding quality of the PCB board 34 and reducing the defective rate.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-sided solder mask table frame, characterized in that, It includes a combined box body (1), a cover plate (2) arranged at the top of the combined box body (1), and a PCB fixing component (3) arranged inside the combined box body (1). The combined box body (1) includes a square box (111), bottom frames (12) arranged at the bottom ends on both sides of the square box (111), and a middle frame (11) arranged at the top of the square box (111). Bottom frame alignment modules (14) are fixed at the four corners of the top of the square box (111). A middle frame alignment module (13) is fixed in the middle of the top of the middle frame (11). Second top cover shafts (15), first middle frame module shafts (18), and first top cover shafts (17) are fixed on both sides of the top of the two middle frames (11). A cylinder (16) and a deflection rod (171) are arranged between the first top cover shaft (17) and the second top cover shaft (15). One end of the deflection rod (171) is sleeved and fixed with the output end of the cylinder (16). The cover plate (2) includes an upper cover (21) and an upper glass (22) arranged inside the upper cover (21). A socket rod (211) is fixed at the bottom end of the upper cover (21). A deflection seat (23) is fixed at the top of one side of the middle frame (11). One end of the socket rod (211) is sleeved and fixed with the deflection seat (23). A second middle frame module shaft (19) and a bottom frame module shaft (191) are arranged on one side of the deflection seat (23). The PCB fixing component (3) includes a top middle frame (31), a lower glass (32), an inflatable strip (33), and a PCB board (34). The lower glass (32) is arranged at the top of the top middle frame (31). The PCB board (34) is arranged inside the inflatable strip (33). The inflatable strip (33) is arranged in the middle of the top of the lower glass (32).

2. The double-sided solder mask table frame according to claim 1, wherein Both sides of the middle frame (11) are warped, and the bottom frame alignment modules (14) are arranged at the warped parts on both sides of the middle frame (11). The top middle frame (31) is arranged at the top of the middle frame alignment module (13), and the top of the middle frame alignment module (13) is at the same height as the middle frame (11).

3. A double-sided solder mask table frame according to claim 1, characterized in that, One end of the cylinder (16) is connected and fixed to the second top cover shaft (15) through a hinge seat. The output end of the cylinder (16) is sleeved and connected to the inside of the deflection rod (171) through an annular structure. The inside of the deflection rod (171) is movably sleeved on one side of the first top cover shaft (17), and the end of the deflection rod (171) is an L-shaped structure.

4. A double-sided solder mask frame according to claim 1, characterized in that, A connection groove body is opened in the middle of the top of the deflection seat (23), and a pin shaft is arranged in the connection groove body. The socket rod (211) is sleeved outside the pin shaft.

5. A double-sided solder mask table frame according to claim 4, characterized in that, The inflatable strip (33) is arranged on the inner side wall of the lower glass (32), and the inflatable strip (33) is arranged at the four sides of the lower glass (32).

6. A double-sided solder mask table frame according to claim 4, characterized in that, Multiple groups of the deflection seats (23) are arranged at equal intervals in an array on the top of one side of the middle frame (11), and multiple groups of the socket rods (211) are arranged at equal intervals in an array at one end of the upper cover (21).

7. A double-sided solder mask table frame according to claim 1, characterized in that, Rounded corner structures are opened at the four corners of the lower glass (32).

8. A double-sided solder mask table frame according to claim 1, wherein, The size of the upper glass (22) is larger than the size of the lower glass (32).

9. A double-sided solder mask table frame according to claim 3, characterized in that, The end of the deflection rod (171) is fixedly connected to the bottom end of the upper cover (21).

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