Welding device for circuit board processing

Abstract

The utility model discloses a welding device for circuit board processing, which comprises a base, a box body is arranged at the top of the base, a placing seat is arranged at the bottom in the box body, a clamping assembly is arranged in the box body, an air cylinder is arranged at the top of the box body, and an output shaft of the air cylinder penetrates through the box body and is connected with a welding head. An extension plate is arranged at one end of the inner wall of the box body, a spray pipe is rotatably connected to the bottom of the extension plate, an electric telescopic rod is hinged to one side of the inner wall of the box body, an output shaft of the electric telescopic rod is hinged to the spray pipe, and one end of the spray pipe is sequentially communicated with a hose and a three-way pipe; the output end of the air cooler communicates with one end of a three-way pipe, a fixing base is arranged on one side of the box body, and an exhaust fan is arranged on the top of the fixing base. Through the arrangement, the solidification speed of a welding seam between the chip and the circuit board can be accelerated, and the firmness degree of the circuit board after welding can be improved.

Description

Technical Field

[0001] The utility model relates to a welding device for processing a circuit board. Background Art

[0002] Circuit boards require welding work during the production process, that is, the chips required for the circuit boards are welded to the surface of the circuit boards.

[0003] The existing welding device is not convenient for removing dust from the surface of the circuit board before welding. When dust adheres to the surface of the circuit board, it will affect the welding quality between the chip and the circuit board. In addition, after welding, the circuit board is mostly naturally air-dried. The existing welding device is not convenient for cooling it, making it difficult to increase the condensation speed of the weld between the chip and the circuit board, which is not conducive to improving the firmness of the circuit board after welding, and has certain limitations.

[0004] Therefore, it is necessary to provide a circuit board processing welding device to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a welding device for processing a circuit board, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A welding device for processing circuit boards comprises a base, a box body is arranged on the top of the base, a placement seat is arranged on the bottom of the box body, a clamping assembly is arranged inside the box body, a cylinder is arranged on the top of the box body, an output shaft of the cylinder passes through the box body and is connected to a welding head, an extension plate is arranged at one end of the inner wall of the box body, a nozzle is rotatably connected at the bottom of the extension plate, an electric telescopic rod is hinged on one side of the inner wall of the box body, the output shaft of the electric telescopic rod is hinged to the nozzle, one end of the nozzle is connected with a hose and a three-way pipe in sequence, an air cooler is arranged on the top of the box body, the output end of the air cooler is connected with one end of the three-way pipe, a fixed seat is arranged on one side of the box body, an exhaust fan is arranged on the top of the fixed seat, one end of the exhaust fan is connected with one end of the three-way pipe, and the other end of the exhaust fan is connected with a filter assembly.

[0008] Preferably, the clamping assembly includes an electric push rod and a clamping plate, and two electric push rods are provided. The two electric push rods are respectively arranged on both sides of the box body, and the output shafts of the two electric push rods pass through the box body and are connected to the clamping plate.

[0009] Preferably, a first solenoid valve is provided at one end of the three-way pipe close to the air cooler, and a second solenoid valve is provided at one end of the three-way pipe close to the air exhauster.

[0010] Preferably, the filter assembly includes a filter box, a box cover, a filter screen, a support block and an air outlet pipe. The filter box is provided with a box cover on the top, support blocks are provided on both sides of the inner wall of the filter box, the filter screen is placed on the top of the support block, and the air outlet pipe is provided at the bottom of the filter box.

[0011] Preferably, a sealing rubber pad is provided on the outer wall of the filter screen, and the outer ring of the sealing rubber pad is in contact with the inner wall of the filter box.

[0012] Preferably, lifting handles are provided on both sides of the top of the filter screen.

[0013] Preferably, a transparent door is hinged at the front end of the box body.

[0014] The beneficial effects of the utility model are as follows: the transparent box door is opened, the circuit board is placed on the placement seat, the placed circuit board is clamped and fixed by the clamping assembly, the surface of the circuit board is exhausted by the exhaust fan, the three-way pipe, the hose and the nozzle, and the dust on the surface of the circuit board is sucked into the filter assembly, after the dust extraction of the circuit board is completed, the chip is placed on the circuit board and the transparent box door is closed, the welding work between the chip and the circuit board can be completed by the cylinder and the welding head, cold air is output toward the circuit board after welding by the cold air fan, the three-way pipe, the hose and the nozzle, so as to accelerate the solidification speed of the weld between the chip and the circuit board, and the air outlet range of the nozzle can be adjusted by the electric telescopic rod and the extension plate, so as to evenly cool the circuit board after welding, which is beneficial to improve the firmness of the circuit board after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below, but this does not limit the protection scope of the utility model.

[0016] Figure 1 A front sectional view of the box provided by the utility model;

[0017] Figure 2 The utility model provides Figure 1 Schematic diagram of some structures;

[0018] Figure 3 A schematic diagram of the structure of the filter assembly provided by the utility model;

[0019] Figure 4 A top view of the filter box provided by the utility model;

[0020] Figure 5 This is a front view of the box provided by the utility model.

[0021] Among them, 1. base; 2. box body; 3. placement seat; 4. clamping assembly; 41. electric push rod; 42. splint; 5. cylinder; 6. welding head; 7. extension plate; 8. nozzle; 9. electric telescopic rod; 10. three-way pipe; 11. air cooler; 12. fixed seat; 13. exhaust fan; 14. filter assembly; 141. filter box; 142. box cover; 143. filter net; 1431. sealing rubber pad; 1432. lifting handle; 144. support block; 145. air outlet duct; 15. first solenoid valve; 16. second solenoid valve; 17. hose; 18. transparent box door. DETAILED DESCRIPTION

[0022] See also Figures 1 to 5 A welding device for processing a circuit board as shown comprises a base 1, a box body 2 is arranged on the top of the base 1, a placement seat 3 is arranged on the bottom of the box body 2, a clamping assembly 4 is arranged inside the box body 2, a cylinder 5 is arranged on the top of the box body 2, the output shaft of the cylinder 5 passes through the box body 2 and is connected to a welding head 6, an extension plate 7 is arranged at one end of the inner wall of the box body 2, a nozzle 8 is rotatably connected to the bottom of the extension plate 7, an electric telescopic rod 9 is hinged on one side of the inner wall of the box body 2, the output shaft of the electric telescopic rod 9 is hinged to the nozzle 8, one end of the nozzle 8 is connected with a hose 17 and a three-way pipe 10 in sequence, a cooler 11 is arranged on the top of the box body 2, the output end of the cooler 11 is connected with one end of the three-way pipe 10, a fixed seat 12 is arranged on one side of the box body 2, an exhaust fan 13 is arranged on the top of the fixed seat 12, one end of the exhaust fan 13 is connected with one end of the three-way pipe 10, and the other end of the exhaust fan 13 is connected with a filter assembly 14.

[0023] Furthermore, the clamping assembly 4 includes an electric push rod 41 and a clamping plate 42 . Two electric push rods 41 are provided. The two electric push rods 41 are respectively provided on both sides of the box body 2 . The output shafts of the two electric push rods 41 both pass through the box body 2 and are connected to the clamping plate 42 .

[0024] The electric push rods 41 on both sides are started to extend their output shafts, driving the clamping plates 42 on both sides to approach each other, thereby clamping and fixing the circuit board on the top of the placement seat 3.

[0025] Furthermore, a first solenoid valve 15 is disposed at one end of the three-way pipe 10 close to the air cooler 11 , and a second solenoid valve 16 is disposed at one end of the three-way pipe 10 close to the air exhauster 13 .

[0026] When the air cooler 11 is used for exhaust work, the first solenoid valve 15 is opened and the second solenoid valve 16 is closed, and the air can be exhausted through the three-way pipe 10. When the exhaust fan 13 is needed for exhaust work, the first solenoid valve 15 is closed and the second solenoid valve 16 is opened, and the air can be exhausted through the three-way pipe 10.

[0027] Furthermore, the filter assembly 14 includes a filter box 141, a box cover 142, a filter screen 143, a support block 144 and an air outlet pipe 145. The filter box 141 is provided with a box cover 142 on the top, support blocks 144 are provided on both sides of the inner wall of the filter box 141, the filter screen 143 is placed on the top of the support block 144, and the air outlet pipe 145 is provided at the bottom of the filter box 141.

[0028] The exhaust fan 13 discharges air and dust into the filter box 141, and supports the filter 143 in the filter box 141 through the support block 144. The dust impurities in the air are filtered through the filter 143, and the gas in the filter box 141 can be discharged through the air outlet pipe 145. When it is necessary to clean the dust on the surface of the filter 143, the box cover 142 is removed from the top of the filter box 141, and the filter 143 can be taken out from the top opening of the filter box 141, so that the filter 143 can be cleaned or replaced.

[0029] Furthermore, a sealing rubber pad 1431 is disposed on the outer wall of the filter screen 143 , and the outer ring of the sealing rubber pad 1431 is in contact with the inner wall of the filter box 141 .

[0030] By providing the sealing rubber pad 1431 , the sealing performance between the outer side of the filter screen 143 and the inner wall of the filter box 141 can be improved, so that the gas entering the filter box 141 can only pass through the filter screen 143 and flow downward.

[0031] Furthermore, lifting handles 1432 are provided on both sides of the top of the filter screen 143 .

[0032] The filter screen 143 can be lifted by pulling the handle 1432 .

[0033] Furthermore, a transparent door 18 is hinged at the front end of the box body 2 .

[0034] The welding condition of the circuit board inside the box body 2 can be observed through the transparent box door 18 .

[0035] Furthermore, an exhaust port is provided at the rear end of the box body 2.

[0036] The excess gas in the box body 2 is discharged through the exhaust port (the exhaust port is not shown in the figure) to avoid excessive air pressure in the box body 2 caused by continuous input of cold air into the box body 2.

[0037] When the utility model is used, the transparent box door 18 is opened, the circuit board is placed on the top of the placement seat 3, the circuit board after being placed is clamped and fixed by the clamping assembly 4, the exhaust fan 13 is started, and the nozzle 8 is exhausted toward the circuit board through the three-way pipe 10, the hose 17 and the nozzle 8, and the dust on the surface of the circuit board is sucked into the filter assembly 14. After the dust extraction of the circuit board is completed, the chip is placed on the top of the circuit board and the transparent box door 18 is closed, the cylinder 5 is started to extend its output shaft, and the welding head 6 is driven to move toward the chip and the circuit board, and the welding work between the chip and the circuit board is completed by the welding head. After the welding of the two is completed, the cold air machine 11 is started, and the nozzle 8 outputs cold air toward the circuit board after welding through the three-way pipe 10 and the hose 17 to accelerate the solidification speed of the weld between the chip and the circuit board, and the electric telescopic rod 9 is started to extend its output shaft, which can drive the nozzle 8 to flip, so as to adjust the air outlet range of the nozzle 8, so as to evenly cool the circuit board after welding, which is conducive to improving the firmness of the circuit board after welding.

[0038] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A welding device for circuit board processing, characterized in that: It includes a base, a box body is arranged on the top of the base, a placement seat is arranged on the bottom of the box body, a clamping assembly is arranged inside the box body, a cylinder is arranged on the top of the box body, an output shaft of the cylinder passes through the box body and is connected to a welding head, an extension plate is arranged at one end of the inner wall of the box body, a nozzle is rotatably connected at the bottom of the extension plate, an electric telescopic rod is hinged on one side of the inner wall of the box body, the output shaft of the electric telescopic rod is hinged to the nozzle, one end of the nozzle is connected with a hose and a three-way pipe in sequence, an air cooler is arranged on the top of the box body, the output end of the air cooler is connected with one end of the three-way pipe, a fixed seat is arranged on one side of the box body, an exhaust fan is arranged on the top of the fixed seat, one end of the exhaust fan is connected with one end of the three-way pipe, and the other end of the exhaust fan is connected with a filter assembly.

2. A circuit board processing welding device according to claim 1, characterized in that: The clamping assembly includes an electric push rod and a clamping plate. Two electric push rods are provided. The two electric push rods are respectively arranged on both sides of the box body. The output shafts of the two electric push rods both pass through the box body and are connected to the clamping plate.

3. A welding device for circuit board processing according to claim 1, characterized in that: A first solenoid valve is arranged at one end of the three-way pipe close to the air cooler, and a second solenoid valve is arranged at one end of the three-way pipe close to the air exhauster.

4. A circuit board processing welding device according to claim 1, characterized in that: The filter assembly includes a filter box, a box cover, a filter screen, a support block and an air outlet pipe. The box cover is arranged on the top of the filter box, support blocks are arranged on both sides of the inner wall of the filter box, the filter screen is placed on the top of the support block, and the air outlet pipe is arranged on the bottom of the filter box.

5. A circuit board processing welding device according to claim 4, characterized in that: The outer wall of the filter screen is provided with a sealing rubber pad, and the outer ring of the sealing rubber pad is in contact with the inner wall of the filter box.

6. A circuit board processing welding device according to claim 4, characterized in that: Both sides of the top of the filter screen are provided with lifting handles.

7. A circuit board processing welding device according to claim 1, characterized in that: A transparent door is hinged at the front end of the box body.

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