A printed circuit board welding and fixing device

Abstract

The utility model discloses a printed circuit board welding fixing device, comprising a base, convex plates are arranged on both sides of the upper end of the base, a support plate is arranged between the two convex plates, the support plate and the convex plate are connected by a connecting column, a clamping block is arranged on the rear side of the upper end of the support plate, a limit block is arranged on the front side of the upper end of the support plate, an adjusting bolt is arranged in the limit block, the adjusting bolt is rotatably connected with a clamping plate near one end of the clamping block, and a dust reduction component is arranged on the upper side of the support plate. The utility model sets a dust reduction component, turns on the fan when the circuit board on the support plate is dissolved, and the fan forms a negative pressure in the dust inlet hopper through the dust reduction box and the connecting pipe, and the smoke generated by welding enters the dust reduction box through the dust inlet hopper and the connecting pipe, and the smoke is filtered through the sand and gravel layer and the activated carbon layer and then discharged from the dust reduction box, so that the smoke generated by welding can be treated with dust reduction to reduce the pollution of the smoke to the air.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing equipment, in particular to a printed circuit board welding and fixing device. Background Art

[0002] Printed circuit boards are providers of electrical connections for electronic components. With the continuous development of electronic technology, printed circuit boards are usually used to reduce wiring and assembly errors, improve automation levels and production labor rates. my country's printed circuit board manufacturing industry has developed rapidly. my country has become the world's most important printed circuit board production base, with total output value and total output both ranking first in the world. Printed circuit boards have developed from single-layer to double-sided boards, multi-layer boards and flexible boards, and are constantly developing towards high precision, high density and high reliability.

[0003] Before welding the printed circuit board, it is necessary to use a fixing fixture to fix the printed circuit board. After using the fixing fixture for a period of time, it needs to be removed for cleaning and maintenance. In order to ensure the normal operation of the printed circuit board, it is usually necessary to remove the dust from the printed circuit board. However, at present, when operators remove dust from the printed circuit board, they usually just use a brush to clean it, and the dust removal effect is poor. At the same time, during dust removal, dust is easy to fly everywhere, causing great pollution to the operating environment and seriously endangering the health of the operator. In addition, the existing printed circuit board welding and fixing device only adjusts the inclination of the support plate through limit bolts, etc., and the accuracy is low. Utility Model Content

[0004] The utility model aims to provide a printed circuit board welding and fixing device which has a dust reduction function and can carry out dust reduction treatment on smoke generated by welding.

[0005] The utility model is realized through the following technical scheme: a printed circuit board welding and fixing device comprises a base, convex plates are arranged on both sides of the upper end of the base, a support plate is arranged between the two convex plates, the support plate and the convex plates are connected by a connecting column, a clamping block is arranged on the rear side of the upper end of the support plate, a limiting block is arranged on the front side of the upper end of the support plate, an adjusting bolt is arranged in the limiting block, the adjusting bolt is rotatably connected with a clamping plate near one end of the clamping block, and a dust reduction component is arranged on the upper side of the support plate.

[0006] In order to better realize the utility model, further, the dust reduction component includes a dust inlet hopper, a connecting pipe, a connecting frame, a dust reduction box, a sand and gravel layer, an activated carbon layer, a fan and an installation component. A dust inlet hopper is arranged on the upper side of the support plate, a connecting frame is arranged between the dust inlet hopper and the convex plate, a dust reduction box is arranged on the rear side of the upper end of the base, a fan is arranged at the rear end of the dust reduction box, a connecting pipe is arranged between the dust inlet hopper and the dust reduction box, a sand and gravel layer is arranged inside the dust reduction box, an activated carbon layer is arranged on one side of the sand and gravel layer, and an installation component is arranged at a position corresponding to the sand and gravel layer and the activated carbon layer on the upper end of the dust reduction box.

[0007] In order to better realize the present utility model, further, the mounting assembly includes a mounting plate, a mounting port, mounting bolts, mounting holes and a slot. A mounting plate is provided at the position of the upper end of the dust reduction box corresponding to the sand and gravel layer and the activated carbon layer. The upper end of the dust reduction box is provided with a mounting port corresponding to the mounting plate. The mounting plate and the dust reduction box are connected by mounting bolts. The upper end of the dust reduction box is provided with mounting holes corresponding to the mounting bolts. The lower end of the mounting plate and the lower end inside the dust reduction box are provided with slots corresponding to the sand and gravel layer and the activated carbon layer.

[0008] In order to better realize the utility model, further, a handle is provided at the middle position of the upper end of the mounting plate, through holes corresponding to the mounting bolts are provided on both sides of the mounting plate, and a rubber pad is bonded to the inner wall of the mounting opening by glue.

[0009] In order to better realize the utility model, further, a worm gear is provided at one end of the connecting column on one side, a worm is provided at a position corresponding to the worm gear at one end of the convex plate on one side, a turning handle is provided at one end of the worm, a turning plate is provided at one end of the connecting column on the other side, an angle meter is provided at a position corresponding to the turning plate at one end of the convex plate, and a pointer is provided at a position corresponding to the angle meter at one end of the turning plate.

[0010] In order to better realize the utility model, further, one end of the pointer is tangent to the angle meter, a bearing rotating seat is provided between the worm and the convex plate, and the turning handle and the worm are a welded integral structure.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] (1) The utility model sets a dust reduction component. When the circuit board on the support plate is dissolved, the fan is turned on. The fan forms a negative pressure in the dust inlet hopper through the dust reduction box and the connecting pipe. The smoke generated by welding enters the dust reduction box through the dust inlet hopper and the connecting pipe. The smoke is filtered through the sand and stone layer and the activated carbon layer and then discharged from the dust reduction box. The dust generated by welding can be treated by dust reduction by setting the dust reduction component, thereby reducing the pollution of the smoke to the air;

[0013] (2) The utility model sets a worm gear. When the inclination of the support plate and the circuit board needs to be adjusted, the worm gear is rotated on the convex plate at one end by turning the handle. The rotation of the worm gear drives the connecting column on one side to rotate through the worm gear. The connecting column rotation drives the support plate to rotate. The connecting column on the other side drives the rotating plate to rotate. The rotating plate rotation drives the pointer to rotate. The angle of the support plate after adjustment can be known by the pointer pointing to the angle meter. By setting the worm gear, the inclination of the support plate can be adjusted more accurately, which improves the practicality of the device.

[0014] (3) The utility model has a reasonable structure and relatively complete functions. It improves the technical defects of the existing circuit board dissolving and fixing device. It has a dust reduction function and can reduce the dust generated by welding. It improves the environment for printed circuit board welding and improves the quality and efficiency of circuit board printing to a certain extent. It is suitable for wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the dust suppression box in the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the installation process of the installation plate in the utility model.

[0019] Among them: 1-base, 2-dust reduction assembly, 21-dust inlet hopper, 22-connecting pipe, 23-connecting frame, 24-dust reduction box, 25-sand and gravel layer, 26-activated carbon layer, 27-fan, 28-installation assembly, 281-installation plate, 282-installation port, 283-installation bolt, 284-installation hole, 285-slot, 3-convex plate, 4-support plate, 5-connecting column, 6-limiting block, 7-clamping block, 8-worm gear, 9-worm, 10-turn handle, 11-adjusting bolt, 12-clamp plate, 13-turn plate, 14-pointer, 15-angle meter. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Embodiment 1:

[0024] The main structure of this embodiment is as follows: Figure 1 , Figure 2 As shown, it includes a base 1, and convex plates 3 are arranged on both sides of the upper end of the base 1, a support plate 4 is arranged between the two convex plates 3, and the support plate 4 is connected to the convex plate 3 by a connecting column 5. A clamping block 7 is arranged on the rear side of the upper end of the support plate 4, and a limiting block 6 is arranged on the front side of the upper end of the support plate 4. An adjusting bolt 11 is arranged in the limiting block 6, and the adjusting bolt 11 is rotatably connected with a clamping plate 12 at one end close to the clamping block 7, and a dust reduction component 2 is arranged on the upper side of the support plate 4.

[0025] The specific implementation method is to install the device at a suitable position, place the circuit board that needs to be welded on the support plate 4, and make the rear end of the circuit board close to the front end of the clamping block 7, then rotate the adjusting bolt 11 to drive the clamping plate 12 to move, and the clamping plate 12 moves to cooperate with the clamping block 7 to clamp and fix the circuit board on the support plate 4. By setting the dust reduction component 2, the smoke generated by welding can be treated to reduce dust pollution to the air.

[0026] Embodiment 2:

[0027] Based on the above embodiment, this embodiment further defines the structure of the dust suppression component 2, such as Figures 1 to 3As shown, the dust reduction component 2 includes a dust inlet hopper 21, a connecting pipe 22, a connecting frame 23, a dust reduction box 24, a sand and gravel layer 25, an activated carbon layer 26, a fan 27 and a mounting component 28. The dust inlet hopper 21 is arranged on the upper side of the support plate 4, and a connecting frame 23 is arranged between the dust inlet hopper 21 and the convex plate 3. The dust reduction box 24 is arranged on the rear side of the upper end of the base 1, and a fan 27 is arranged at the rear end of the dust reduction box 24. A connecting pipe 22 is arranged between the dust inlet hopper 21 and the dust reduction box 24, a sand and gravel layer 25 is arranged inside the dust reduction box 24, and an activated carbon layer 26 is arranged on one side of the sand and gravel layer 25. The mounting component 28 is arranged at a position corresponding to the sand and gravel layer 25 and the activated carbon layer 26 on the upper end of the dust reduction box 24. When the circuit board on the support plate 4 is dissolved, the fan 27 is turned on, and the fan 27 forms a negative pressure in the dust inlet hopper 21 through the dust reduction box 24 and the connecting pipe 22. The smoke generated by welding enters the dust reduction box 24 through the dust inlet hopper 21 and the connecting pipe 22, and the smoke is filtered through the sand and gravel layer 25 and the activated carbon layer 26 and then discharged from the dust reduction box 24. By setting the dust reduction component 2, the smoke generated by welding can be dusted, thereby reducing the pollution of the smoke to the air. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0028] Embodiment 3:

[0029] Based on the above embodiment, this embodiment further defines the structure of the installation component 28, such as Figure 3 As shown, the mounting assembly 28 includes a mounting plate 281, a mounting port 282, a mounting bolt 283, a mounting hole 284 and a slot 285. The mounting plate 281 is arranged at a position on the upper end of the dust reduction box 24 corresponding to the sand and gravel layer 25 and the activated carbon layer 26. The upper end of the dust reduction box 24 is provided with a mounting port 282 corresponding to the mounting plate 281. The mounting plate 281 and the dust reduction box 24 are connected by mounting bolts 283. The upper end of the dust reduction box 24 is provided with a mounting hole 284 corresponding to the mounting bolt 283. The lower end of the mounting plate 281 and the lower end inside the dust reduction box 24 are provided with slots 285 corresponding to the sand and gravel layer 25 and the activated carbon layer 26. Put the gravel layer 25 and the activated carbon layer 26 into the dust reduction box 24 through the installation opening 282, and the lower ends of the gravel layer 25 and the activated carbon layer 26 enter the card slot 285 inside the dust reduction box 24, then put the mounting plate 281 into the installation opening 282, and the upper ends of the gravel layer 25 and the activated carbon layer 26 enter the card slot 285 at the lower end of the mounting plate 281, and finally screw the mounting bolt 283 into the mounting hole 284 at the upper end of the dust reduction box 24 to fix the mounting plate 281. By setting the mounting assembly 28, it is convenient to disassemble and replace the gravel layer 25 and the activated carbon layer 26. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0030] Embodiment 4:

[0031] Based on the above embodiment, this embodiment further defines the structure of the installation component 28, such as Figure 3 As shown, a handle is provided at the middle position of the upper end of the mounting plate 281, through holes corresponding to the mounting bolts 283 are provided on both sides of the mounting plate 281, and a rubber pad is glued to the inner wall of the mounting opening 282. The handle is provided to facilitate taking the mounting plate 281, and the mounting bolts 283 can pass through the mounting plate 281 and be screwed into the mounting hole 284 at the upper end of the dust suppression box 24. The other parts of this embodiment are the same as the above embodiment and will not be repeated.

[0032] Embodiment 5:

[0033] Based on the above embodiment, this embodiment further adds a worm gear 8 and other structures, such as Figure 1 , Figure 2 As shown, a worm gear 8 is provided at one end of the connecting column 5 on one side, a worm 9 is provided at a position corresponding to the worm gear 8 at one end of the convex plate 3 on one side, a turning handle 10 is provided at one end of the worm 9, a turning plate 13 is provided at one end of the connecting column 5 on the other side, an angle gauge 15 is provided at one end of the convex plate 3 at a position corresponding to the turning plate 13, and a pointer 14 is provided at one end of the turning plate 13 at a position corresponding to the angle gauge 15. When the inclination of the support plate 4 and the circuit board needs to be adjusted, the worm 9 is rotated on the convex plate 3 at one end by turning the turning handle 10, and the rotation of the worm 9 drives the connecting column 5 on one side to rotate through the worm gear 8, and the rotation of the connecting column 5 drives the support plate 4 to rotate, and the connecting column 5 on the other side drives the turning plate 13 to rotate, and the rotation of the turning plate 13 drives the pointer 14 to rotate, and the angle of the support plate 4 after adjustment can be known by the pointer 14 pointing to the angle gauge 15. The inclination of the support plate 4 can be adjusted more accurately by setting the worm 9, thereby improving the practicality of the device. The other parts of the embodiment are the same as the above embodiment and will not be repeated.

[0034] Embodiment 6:

[0035] Based on the above embodiments, this embodiment further defines the positional relationship of each structure, such as Figure 2 As shown, one end of the pointer 14 is tangent to the angle gauge 15, a bearing rotating seat is provided between the worm 9 and the convex plate 3, and the turning handle 10 and the worm 9 are welded into an integrated structure. Such a setting can prevent the pointer 14 from scratching the angle gauge 15, and the turning handle 10 can drive the worm 9 to rotate on the convex plate 3. The other parts of this embodiment are the same as those of the above embodiment and will not be repeated.

[0036] It can be understood that the structure of the printed circuit board welding and fixing device according to an embodiment of the utility model, such as the structure of the base 1, the convex plate 3, the support plate 4, the connecting column 5, the limit block 6, the clamping block 7, the adjusting bolt 11 and the clamping plate 12, and the working principle and working process of the components are all prior art, and its working principle is to place the circuit board to be welded on the support plate 4, and to make the rear end of the circuit board close to the front end of the clamping block 7, and then to rotate the adjusting bolt 11 to drive the clamping plate 12 to move, and the clamping plate 12 moves to cooperate with the clamping block 7 to clamp and fix the circuit board on the support plate 4, which are all well known to technicians in this field and will not be described in detail here.

[0037] Among them, the model selected for fan 27 is 4-72C.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A printed circuit board welding and fixing device, characterized in that: The utility model comprises a base (1), wherein convex plates (3) are arranged on both sides of the upper end of the base (1), a support plate (4) is arranged between the two convex plates (3), the support plate (4) and the convex plate (3) are connected via a connecting column (5), a clamping block (7) is arranged on the rear side of the upper end of the support plate (4), a limit block (6) is arranged on the front side of the upper end of the support plate (4), an adjusting bolt (11) is arranged in the limit block (6), and a clamping plate (12) is rotatably connected to one end of the adjusting bolt (11) close to the clamping block (7), and a dust reduction assembly (2) is arranged on the upper side of the support plate (4).

2. A printed circuit board welding and fixing device according to claim 1, characterized in that: The dust reduction assembly (2) comprises a dust inlet hopper (21), a connecting pipe (22), a connecting frame (23), a dust reduction box (24), a sand and gravel layer (25), an activated carbon layer (26), a fan (27) and a mounting assembly (28); the dust inlet hopper (21) is arranged on the upper side of the support plate (4); a connecting frame (23) is arranged between the dust inlet hopper (21) and the convex plate (3); a dust reduction box (24) is arranged on the rear side of the upper end of the base (1); a fan (27) is arranged at the rear end of the dust reduction box (24); a connecting pipe (22) is arranged between the dust inlet hopper (21) and the dust reduction box (24); a sand and gravel layer (25) is arranged inside the dust reduction box (24); an activated carbon layer (26) is arranged on one side of the sand and gravel layer (25); and a mounting assembly (28) is arranged at a position on the upper end of the dust reduction box (24) corresponding to the sand and gravel layer (25) and the activated carbon layer (26).

3. A printed circuit board welding and fixing device according to claim 2, characterized in that: The mounting assembly (28) comprises a mounting plate (281), a mounting opening (282), a mounting bolt (283), a mounting hole (284) and a slot (285); the mounting plate (281) is arranged at a position on the upper end of the dust reduction box (24) corresponding to the sandstone layer (25) and the activated carbon layer (26); the upper end of the dust reduction box (24) is provided with a mounting opening (282) corresponding to the mounting plate (281); the mounting plate (281) and the dust reduction box (24) are connected via mounting bolts (283); the upper end of the dust reduction box (24) is provided with a mounting hole (284) corresponding to the mounting bolt (283); and the lower end of the mounting plate (281) and the lower end inside the dust reduction box (24) are both provided with slots (285) corresponding to the sandstone layer (25) and the activated carbon layer (26).

4. A printed circuit board welding and fixing device according to claim 3, characterized in that: A handle is provided at the middle position of the upper end of the mounting plate (281), through holes corresponding to the mounting bolts (283) are provided on both sides of the mounting plate (281), and a rubber pad is bonded to the inner wall of the mounting opening (282) by glue.

5. A printed circuit board welding and fixing device according to claim 1, characterized in that: A worm gear (8) is provided at one end of the connecting column (5) on one side, a worm (9) is provided at a position corresponding to the worm gear (8) at one end of the convex plate (3) on one side, a turning handle (10) is provided at one end of the worm (9), a turning plate (13) is provided at one end of the connecting column (5) on the other side, an angle gauge (15) is provided at a position corresponding to the turning plate (13) at one end of the convex plate (3), and a pointer (14) is provided at a position corresponding to the angle gauge (15) at one end of the turning plate (13).

6. A printed circuit board welding and fixing device according to claim 5, characterized in that: One end of the pointer (14) is tangent to the angle gauge (15), a bearing rotating seat is provided between the worm (9) and the convex plate (3), and the turning handle (10) and the worm (9) are a welded integral structure.

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