Device for pasting foam on surface of PCB (Printed Circuit Board)

Abstract

The utility model relates to a device for pasting foam on the surface of a PCB (Printed Circuit Board), which belongs to the technical field of surface processing of the PCB and comprises a workbench and a mounting box arranged at the top of the workbench, two supporting plates are fixedly connected between the mounting box and the workbench, a clamping structure for clamping and positioning the PCB is arranged at the top of the workbench, and the supporting plates are fixedly connected with the workbench. The clamping structure comprises a placing table fixedly installed on the top of the workbench, and a reset spring is fixedly connected to the interior of the placing table. According to the device for pasting the foam on the surface of the PCB, by arranging a reset spring and a moving block, the moving block can elastically move, then by arranging a clamping and fixing block and a connecting block, the clamping and fixing block can elastically move as well, meanwhile, due to the special shape of the clamping and fixing block, the clamping and fixing block can clamp and fix the PCB, and the clamping and fixing block is convenient to use. The PCB is prevented from deviating in the chip mounting process, manual positioning by workers is not needed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board surface processing, in particular to a PCB board surface foam pasting device. Background Art

[0002] SMT patch refers to the abbreviation of a series of process flows based on PCB, PCB is a printed circuit board. SMT is surface mount technology (surface mount technology), which is the most popular technology and process in the electronic assembly industry. PCB surface mount foam usually refers to a foam material with specific functions and performance used on a printed circuit board (PCB). PCB surface mount foam is widely used in the fields of electronic products and communication equipment, such as internal insulation isolation and assembly buffering of electronic products, fixing and conductive connection of electronic components, shielding and protection of communication equipment, shockproof and buffering of electronic instruments, etc.

[0003] The main functions of the foam on the surface of the PCB board are: anti-oxidation, improving conductivity, electromagnetic shielding, buffering and shockproof effects. In the production process of PCB boards, a foam sticking device is needed. Nowadays, when patching the surface of the PCB board, it is necessary to do it manually, but the efficiency of manual patching is low, and the position of the patch has a large error, which will affect the overall performance of the PCB board and increase the workload of the staff. It cannot meet the production needs. Therefore, a foam sticking device for the surface of the PCB board is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a PCB board surface foam pasting device, which has the advantage of being easy to paste on the PCB board, and solves the problem that when pasting on the PCB board surface, manual pasting is required, while the efficiency of manual pasting is low and the position of the pasting has a large error, which in turn affects the overall performance of the PCB board, and at the same time increases the workload of the staff and cannot meet the production needs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB board surface foam sticking device, comprising a workbench and an installation box arranged on the top of the workbench, two support plates are fixedly connected between the installation box and the workbench, and a clamping structure for clamping and positioning the PCB board is arranged on the top of the workbench;

[0006] The clamping structure includes a placing table fixedly installed on the top of the workbench, a return spring is fixedly connected inside the placing table, one end of the return spring is fixedly connected to a moving block, a clamping fixed block is slidably connected to the top of the placing table, and a connecting block is fixedly connected between the clamping fixed block and the moving block.

[0007] Furthermore, a movable groove adapted to the connecting block is provided on the upper surface of the placing table, and an anti-slip plate is fixedly connected to a side of the clamping and fixing block away from the placing table.

[0008] Furthermore, the front and back sides of the moving block are fixedly connected with positioning blocks extending into the interior of the placement table, and the inner wall of the placement table is provided with positioning grooves adapted to the positioning blocks.

[0009] Furthermore, the number of the clamping and fixing blocks is four, and the four clamping and fixing blocks are evenly distributed around the top of the placement table.

[0010] Furthermore, a dust suction fan is fixedly installed inside the workbench, one end of the dust suction fan is fixedly connected to a collection box, a side of the collection box away from the dust suction fan is fixedly connected to a hose extending to the top of the workbench, and an end of the hose away from the collection box is fixedly connected to a dust suction head.

[0011] Furthermore, the collection box is fixedly installed inside the workbench, and one end of the dust suction fan located inside the collection box is fixedly connected to a filter.

[0012] Furthermore, a drive motor is fixedly installed on one side of the installation box, and an adjusting screw extending to the interior of the installation box is fixedly connected to the output shaft of the drive motor. The external thread of the adjusting screw is connected to a threaded sleeve, and a transverse moving box extending to the bottom of the installation box is provided at the bottom of the threaded sleeve.

[0013] Furthermore, a fixing block is fixedly connected between the threaded sleeve and the transverse moving box, and there are two driving motors, one of which is fixedly installed on the back of the transverse moving box.

[0014] Furthermore, a limiting block extending into the interior of the installation box is fixedly connected to a side of the threaded sleeve away from the fixing block, and a limiting groove matched with the limiting block is provided on the inner wall of the installation box.

[0015] Furthermore, an electric push rod is provided at the bottom of the transverse moving box, a connecting plate is fixedly connected to the output end of the electric push rod, a patch head is fixedly connected to the side of the connecting plate close to the placement table, and a positioning light is fixedly installed at the bottom of the connecting plate.

[0016] Compared with the prior art, the utility model provides a PCB board surface foam device, which has the following beneficial effects:

[0017] 1. The foam device for pasting the surface of the PCB board is provided with a reset spring and a moving block, so that the moving block can move elastically, and then the clamping and fixing block and the connecting block are provided, so that the clamping and fixing block can also be elastically displaced. At the same time, due to the special shape of the clamping and fixing block, the PCB board can be clamped and fixed, avoiding the PCB board from being offset during patching, and no manual positioning is required by the staff, thereby improving the work efficiency.

[0018] 2. The foam sticking device for the PCB board surface is convenient for absorbing dust on the surface of the PCB board by arranging a dust suction fan and a collection box, and then arranging a hose and a dust suction head, so as to avoid the dust affecting the viscosity of the foam during patching, improve the patching effect, and solve the problem that when patching the surface of the PCB board, manual patching is required, while the efficiency of manual patching is low and the position of the patch has a large error, which will affect the overall performance of the PCB board, and at the same time increase the workload of the staff and cannot meet the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 This is a top view of the structure of the placement table of the utility model;

[0021] Figure 3 For this utility model Figure 1 A is a schematic diagram of the enlarged structure shown;

[0022] Figure 4 This is a schematic diagram of the structure of the positioning lamp of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the structure of the utility model.

[0024] In the figure: 1 workbench, 2 installation box, 3 support plate, 4 placement table, 5 return spring, 6 elastic moving block, 7 clamping fixed block, 8 connecting block, 9 movable groove, 10 dust suction fan, 11 collection box, 12 hose, 13 dust suction head, 14 drive motor, 15 adjustment screw, 16 threaded sleeve, 17 horizontal moving box, 18 fixed block, 19 electric push rod, 20 connecting plate, 21 patch head, 22 positioning light. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 5 In this embodiment, a PCB board surface foam sticking device includes a workbench 1 and an installation box 2 arranged on the top of the workbench 1, two support plates 3 are fixedly connected between the installation box 2 and the workbench 1, and a clamping structure for clamping and positioning the PCB board is arranged on the top of the workbench 1. The clamping structure includes a placement table 4 fixedly installed on the top of the workbench 1, a reset spring 5 is fixedly connected inside the placement table 4, and a moving block 6 is fixedly connected to one end of the reset spring 5. A clamping fixed block 7 is slidably connected to the top of the placement table 4, and a connecting block 8 is fixedly connected between the clamping fixed block 7 and the moving block 6.

[0027] Among them, the upper surface of the placement table 4 is provided with a movable groove 9 adapted to the connecting block 8, the side of the clamping and fixing block 7 away from the placement table 4 is fixedly connected with an anti-slip plate, the front and back sides of the movable block 6 are fixedly connected with positioning blocks extending to the inside of the placement table 4, and the inner wall of the placement table 4 is provided with a positioning groove adapted to the positioning block. By setting the anti-slip plate, the friction between the staff's hands and the clamping and fixing block 7 can be improved, and the clamping and fixing block 7 can be moved more smoothly.

[0028] It should be noted that there are four clamping and fixing blocks 7, and the four clamping and fixing blocks 7 are evenly distributed around the top of the placement table 4. By setting the reset spring 5 and the moving block 6, the moving block 6 can be elastically moved, and then by setting the clamping and fixing block 7 and the connecting block 8, the clamping and fixing block 7 can also be elastically displaced. At the same time, due to the special shape of the clamping and fixing block 7, it can clamp and fix the PCB board to avoid the PCB board from shifting during the patch, and there is no need for manual positioning by the staff, which improves the work efficiency.

[0029] In this embodiment, a dust suction fan 10 is fixedly installed inside the workbench 1, one end of the dust suction fan 10 is fixedly connected to a collection box 11, a side of the collection box 11 away from the dust suction fan 10 is fixedly connected to a hose 12 extending to the top of the workbench 1, and an end of the hose 12 away from the collection box 11 is fixedly connected to a dust suction head 13.

[0030] Among them, the collecting box 11 is fixedly installed inside the workbench 1, and one end of the dust suction fan 10 located inside the collecting box 11 is fixedly connected with a filter screen. By setting the filter screen, dust can be prevented from entering the dust suction fan 10. A controller is fixedly installed on the front of the workbench 1, and a box door is hinged on the front of the workbench 1.

[0031] In this embodiment, a drive motor 14 is fixedly installed on one side of the installation box 2, and an adjusting screw 15 extending to the interior of the installation box 2 is fixedly connected to the output shaft of the drive motor 14, and a threaded sleeve 16 is connected to the external thread of the adjusting screw 15. A transverse moving box 17 extending to the bottom of the installation box 2 is provided at the bottom of the threaded sleeve 16, and a fixed block 18 is fixedly connected between the threaded sleeve 16 and the transverse moving box 17. There are two drive motors 14, and one of the drive motors 14 is fixedly installed on the back side of the transverse moving box 17.

[0032] Among them, the side of the threaded sleeve 16 away from the fixed block 18 is fixedly connected with a limit block extending into the interior of the installation box 2, and a limit groove compatible with the limit block is opened on the inner wall of the installation box 2. A bearing compatible with the adjusting screw 15 is fixedly installed inside the installation box 2.

[0033] It should be noted that, by providing the installation box 2 and the lateral movement box 17 , the electric push rod 19 can be driven to move lateral and longitudinally at the same time.

[0034] In this embodiment, an electric push rod 19 is provided at the bottom of the transverse moving box 17, and a connecting plate 20 is fixedly connected to the output end of the electric push rod 19. A patch head 21 is fixedly connected to the side of the connecting plate 20 close to the placement table 4, and a positioning light 22 is fixedly installed at the bottom of the connecting plate 20.

[0035] The working principle of the above embodiment is:

[0036] First, place the PCB board on the placement table 4. At this time, the staff manually slides the positioning and fixing block 7. At the same time, the PCB board should be located at the bottom of the positioning and fixing block 7. At this time, due to the elasticity of the reset spring 5 and the special shape of the positioning and fixing block 7, the PCB board is clamped and fixed. After the fixation is completed, the staff holds the dust suction head 13 and aims it at the upper surface of the PCB board. At the same time, the dust suction fan 10 is started to absorb the dust on the upper surface of the PCB board. At the same time, the two driving motors 14 and the positioning light 22 are started, and the electric push rod 19 is started to drive the patch head 21 to move to the specified position to carry out the patch.

[0037] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A PCB surface foaming device, comprising a workbench (1) and an installation box (2) arranged on the top of the workbench (1), characterized in that: Two support plates (3) are fixedly connected between the installation box (2) and the workbench (1), and a clamping structure for clamping and positioning a PCB board is provided on the top of the workbench (1); The clamping structure comprises a placing table (4) fixedly mounted on the top of the workbench (1); a return spring (5) is fixedly connected inside the placing table (4); one end of the return spring (5) is fixedly connected to a moving block (6); a clamping fixed block (7) is slidably connected to the top of the placing table (4); and a connecting block (8) is fixedly connected between the clamping fixed block (7) and the moving block (6).

2. A PCB board surface foam device according to claim 1, characterized in that: The upper surface of the placement platform (4) is provided with a movable groove (9) adapted to the connection block (8), and the side of the clamping and fixing block (7) away from the placement platform (4) is fixedly connected with an anti-slip plate.

3. A PCB surface foam device according to claim 1, characterized in that: The front and back sides of the moving block (6) are fixedly connected to positioning blocks extending into the interior of the placement platform (4), and positioning grooves matching the positioning blocks are provided on the inner wall of the placement platform (4).

4. A PCB surface foam device according to claim 1, characterized in that: The number of the clamping and fixing blocks (7) is four, and the four clamping and fixing blocks (7) are evenly distributed around the top of the placement platform (4).

5. The PCB surface foam device according to claim 1, characterized in that: A dust suction fan (10) is fixedly installed inside the workbench (1), one end of the dust suction fan (10) is fixedly connected to a collection box (11), a side of the collection box (11) away from the dust suction fan (10) is fixedly connected to a hose (12) extending to the top of the workbench (1), and one end of the hose (12) away from the collection box (11) is fixedly connected to a dust suction head (13).

6. A PCB surface foam device according to claim 5, characterized in that: The collection box (11) is fixedly installed inside the workbench (1), and one end of the dust suction fan (10) located inside the collection box (11) is fixedly connected to a filter screen.

7. The PCB surface foam device according to claim 1, characterized in that: A drive motor (14) is fixedly mounted on one side of the installation box (2); an adjusting screw (15) extending to the interior of the installation box (2) is fixedly connected to the output shaft of the drive motor (14); a threaded sleeve (16) is threadedly connected to the outside of the adjusting screw (15); and a lateral movement box (17) extending to the bottom of the installation box (2) is provided at the bottom of the threaded sleeve (16).

8. The PCB surface foam device according to claim 7, characterized in that: A fixing block (18) is fixedly connected between the threaded sleeve (16) and the transverse moving box (17). The number of the driving motors (14) is two, one of which is fixedly mounted on the back of the transverse moving box (17).

9. A PCB surface foam mounting device according to claim 8, characterized in that: A limit block extending into the interior of the installation box (2) is fixedly connected to the side of the threaded sleeve (16) away from the fixed block (18), and a limit groove matching the limit block is provided on the inner wall of the installation box (2).

10. The PCB surface foam mounting device according to claim 7, characterized in that: An electric push rod (19) is arranged at the bottom of the transverse moving box (17), a connecting plate (20) is fixedly connected to the output end of the electric push rod (19), a patch head (21) is fixedly connected to the side of the connecting plate (20) close to the placement table (4), and a positioning lamp (22) is fixedly installed at the bottom of the connecting plate (20).

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