Circuit board welding equipment

Abstract

The utility model relates to circuit board welding equipment which comprises a workbench, a containing groove is formed in the top of the workbench, a circuit board is placed in the containing groove, the outer wall of the circuit board is attached to the inner wall of the containing groove, two electric push rods are fixedly connected to the top of the workbench, and the output ends of the two electric push rods are jointly and fixedly connected with a top plate. A welding gun is fixedly connected to the position, over the containing groove, of the bottom of the top plate, cavities are formed in the positions, on the two opposite sides of the containing groove, of the interior of the workbench, pistons are slidably connected into the cavities, and two vertical rods are fixedly connected to the bottom of the top plate. The utility model relates to the technical field of circuit board welding. The electric push rod works to drive the welding gun to move to weld the circuit board, and after welding is completed, the electric push rod works reversely to drive the two rotating plates to rotate, so that the bottom of the containing groove is exposed, the circuit board automatically penetrates through the containing groove and falls onto the conveying belt to be conveyed away, discharging is automatically achieved, and machining efficiency is improved.

Description

Technical Field

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

[0002] The circuit board is obtained by soldering the electronic components to the main board of the circuit board. When processing the circuit board, the electronic components need to be inserted into the electronic component mounting holes reserved on the circuit board, and then welding equipment needs to be used to solder each electronic component on one side of the circuit board.

[0003] Current circuit board welding equipment generally requires workers to accurately place the circuit board, use the welding gun to weld the circuit board, and then remove the circuit board for collection. Therefore, workers need to unload materials frequently, which wastes time and reduces processing efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a circuit board welding device so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A circuit board welding device comprises a workbench, a placement groove is provided on the top of the workbench, a circuit board is placed in the placement groove and the outer wall of the circuit board is fitted with the inner wall of the placement groove, two electric push rods are fixedly connected to the top of the workbench, the output ends of the two electric push rods are commonly fixedly connected to a top plate, a welding gun is fixedly connected to the bottom of the top plate located just above the placement groove, cavities are provided in the workbench at opposite sides of the placement groove, a piston is slidably connected in the cavity, two vertical rods are fixedly connected to the bottom of the top plate, the vertical rods slide through the upper half of the workbench and are fixedly connected to the corresponding piston tops, a bottom groove is provided at the bottom of the workbench, the placement groove is communicated with the bottom groove, and an adjustment part is provided in the bottom groove.

[0007] Furthermore, the adjusting part includes two rotating rods, which rotate through the bottom groove and two cavities. The top wall in the bottom groove is rotatably connected to four screws, and the bottom ends of the screws are transmission-connected to the corresponding rotating rods through a bevel gear set. Two rotating plates are hinged on the top wall in the bottom groove, and a connecting rod is hinged on the bottom surface of the rotating plate. A screw block is threadedly connected to the outer peripheral surface of the screw, and the bottom end of the connecting rod is hinged to the corresponding screw block. A transmission part is provided in the cavity.

[0008] Furthermore, the transmission part includes a sliding plate slidably connected to the cavity, a plurality of connecting ropes are fixedly connected to the bottom of the piston, the bottom ends of the connecting ropes are fixedly connected to the sliding plate, two spur racks are fixedly connected to the bottom of the sliding plate, the outer peripheral surface of the rotating rod is located in the cavity and is fixedly sleeved with a driven gear, the spur racks are meshed with the corresponding driven gears, a plurality of springs are fixedly connected between the bottom of the sliding plate and the bottom wall of the cavity, and when the springs are in a natural state, the rotating plate is in a horizontal state and partially covers the placement groove.

[0009] Furthermore, a collecting box is fixedly connected to the top of the workbench, a filter cotton layer is fixedly connected inside the collecting box, the upper half of the cavity is communicated with the collecting box through a pipe, and a first solenoid valve is fixedly sleeved on the outer peripheral side of the pipe between the cavity and the collecting box, a plurality of dust suction pipes are fixedly penetrated on one side of the collecting box, and one end of the dust suction pipe away from the collecting box is fixedly passed through the workbench and extends to the inner wall of the placement groove.

[0010] Furthermore, a plurality of exhaust pipes are fixedly provided on the upper half of the inner wall of the cavity, one end of the exhaust pipe away from the cavity is fixedly passed through the collection box and extends to the upper outside of the placement groove, and a second solenoid valve is fixedly sleeved on the outer peripheral surface of the exhaust pipe.

[0011] Furthermore, a conveyor belt is provided below the workbench corresponding to the bottom groove.

[0012] Furthermore, through holes are provided on the top of the sliding plate and the bottom wall of the cavity.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] 1. This circuit board welding equipment, the electric push rod drives the welding gun to move to weld the circuit board. After the welding is completed, the electric push rod works in the opposite direction, driving the two rotating plates to rotate, so that the bottom of the placement slot is exposed, and the circuit board automatically passes through the placement slot and falls onto the conveyor belt to be sent away, thereby automatically realizing the unloading and improving the processing efficiency;

[0015] 2. In this circuit board welding equipment, when the welding gun is falling, the piston moves downward and negative pressure is generated above the piston; when the welding gun is working, the first solenoid valve is opened, and negative pressure above the piston is sucked in. The harmful fumes generated during the welding process enter the collection box through the dust suction pipe and are captured by the filter cotton layer, thereby protecting the working environment and the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a three-dimensional diagram of a circuit board welding device of the present embodiment;

[0018] Figure 2 is a front cross-sectional view of a circuit board welding device of the present embodiment;

[0019] Figure 3 is a side sectional view of a circuit board welding device of the present embodiment;

[0020] Figure 4 It is a top cross-sectional view of a circuit board welding device of this embodiment.

[0021] In the figure, 1, workbench; 2, placement groove; 3, electric push rod; 4, top plate; 5, welding gun; 6, cavity; 7, piston; 8, vertical rod; 9, bottom groove; 10, adjustment part; 101, rotating rod; 102, screw rod; 103, rotating plate; 104, connecting rod; 105, screw block; 106, transmission part; 1061, sliding plate; 1062, connecting rope; 1063, spur rack; 1064, driven gear; 1065, spring; 11, collecting box; 12, filter cotton layer; 13, first solenoid valve; 14, dust suction pipe; 15, exhaust pipe; 16, second solenoid valve; 17, conveyor belt; 18, through hole. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example:

[0024] Reference Figures 1 to 4 The utility model discloses a circuit board welding device, including a workbench 1, a placement groove 2 is opened on the top of the workbench 1, the circuit board is placed in the placement groove 2 and the outer wall of the circuit board is in contact with the inner wall of the placement groove 2, two electric push rods 3 are fixedly connected to the top of the workbench 1, and the output ends of the two electric push rods 3 are commonly fixedly connected to a top plate 4, and a welding gun 5 is fixedly connected to the bottom of the top plate 4 located just above the placement groove 2. Cavities 6 are opened on opposite sides of the placement groove 2 in the workbench 1, and a piston 7 is slidably connected in the cavity 6. Two vertical rods 8 are fixedly connected to the bottom of the top plate 4, and the vertical rods 8 slide through the upper half of the workbench 1 and are fixedly connected to the top of the corresponding piston 7. A bottom groove 9 is opened at the bottom of the workbench 1, and the placement groove 2 is communicated with the bottom groove 9, and an adjusting part 10 is arranged in the bottom groove 9.

[0025] In this embodiment, the size of the placement groove 2 is the same as the size of the circuit board to be processed, so the circuit board is positioned by placing it in the placement groove 2. The depth of the placement groove 2 is greater than the thickness of the circuit board, and the circuit board will not fall out of the placement groove 2 during welding.

[0026] The horizontal cross-sectional dimension of the bottom groove 9 is larger than the horizontal cross-sectional dimension of the placement groove 2 (such as Figure 2 shown).

[0027] After the circuit board is placed in the placement groove 2, the electric push rod 3 is started to retract, driving the top plate 4 to move downward, and the top plate 4 drives the welding gun 5, the vertical rod 8 and the piston 7 to move downward until the welding gun 5 contacts the circuit board to perform welding operation on the circuit board.

[0028] In a further preferred embodiment of the present invention, Figure 2 As shown, the adjusting part 10 includes two rotating rods 101, which rotate through the bottom groove 9 and the two cavities 6. The top wall of the bottom groove 9 is rotatably connected with four screws 102. The bottom ends of the screws 102 are transmission connected with the corresponding rotating rods 101 through a bevel gear set. Two rotating plates 103 are hinged on the top wall of the bottom groove 9. A connecting rod 104 is hinged on the bottom surface of the rotating plate 103. A screw block 105 is threadedly connected to the outer peripheral surface of the screw 102. The bottom end of the connecting rod 104 is hinged with the corresponding screw block 105. A transmission part 106 is arranged in the cavity 6.

[0029] In this embodiment, the rotating rod 101 is not located directly below the placement slot 2 , so the circuit board dropped from the placement slot 2 will not hit the rotating rod 101 , but will be discharged from the bottom slot 9 through the gap between the two rotating rods 101 .

[0030] In the initial state, the rotating plate 103 is in a horizontal state and partially covers the placement slot 2, so the bottom surface of the circuit board is in contact with the top surface of the rotating plate 103, and the rotating plate 103 supports the circuit board so that the circuit board remains in a horizontal state.

[0031] In a further preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, the transmission part 106 includes a sliding plate 1061 slidably connected to the cavity 6, a plurality of connecting ropes 1062 are fixedly connected to the bottom of the piston 7, the bottom ends of the connecting ropes 1062 are fixedly connected to the sliding plate 1061, two spur racks 1063 are fixedly connected to the bottom of the sliding plate 1061, a driven gear 1064 is fixedly sleeved on the outer peripheral surface of the rotating rod 101 located in the cavity 6, the spur racks 1063 are meshed with the corresponding driven gear 1064, a plurality of springs 1065 are fixedly connected between the bottom of the sliding plate 1061 and the bottom wall of the cavity 6, and when the springs 1065 are in a natural state, the rotating plate 103 is in a horizontal state and partially covers the placement slot 2.

[0032] In this embodiment, when the piston 7 moves downward, the connecting rope 1062 is in a relaxed state, and the sliding plate 1061 does not move. When the circuit board welding is completed, the electric push rod 3 drives the top plate 4 to move upward to the original position, and the connecting rope 1062 is straightened. Then the electric push rod 3 continues to work, driving the top plate 4 to continue to move upward, the piston 7 pulls the sliding plate 1061 upward through the connecting rope 1062, the sliding plate 1061 drives the spur rack 1063 to move, the spur rack 1063 drives the driven gear 1064 to rotate, the driven gear 1064 drives the rotating rod 101 to rotate, the rotating rod 101 drives the screw 102 to rotate, thereby driving the screw block 105 to move downward, the screw block 105 drives the connecting rod 104 to move, and the connecting rod 104 drives the rotating plate 103 to rotate, and finally the rotating plate 103 rotates to a vertical state, the placement slot 2 is fully exposed, and the circuit board in the placement slot 2 passes through the placement slot 2 and the bottom slot 9.

[0033] In a further preferred embodiment of the present invention, Figure 2 As shown, a collecting box 11 is fixedly connected to the top of the workbench 1, a filter cotton layer 12 is fixedly connected inside the collecting box 11, the upper half of the cavity 6 is communicated with the collecting box 11 through a pipe, and a first solenoid valve 13 is fixedly sleeved on the outer periphery of the pipe between the cavity 6 and the collecting box 11, and a plurality of dust suction pipes 14 are fixedly penetrated on one side of the collecting box 11, and one end of the dust suction pipe 14 away from the collecting box 11 is fixedly passed through the workbench 1 and extends to the inner wall of the placement groove 2.

[0034] In this embodiment, in the initial state, the first solenoid valve 13 is in a closed state, and when the top plate 4 moves downward, the piston 7 also moves downward, so negative pressure is generated above the piston 7. When the welding gun 5 is working, the first solenoid valve 13 is opened, and negative pressure above the piston 7 is sucked, and harmful fumes generated during welding enter the collection box 11 through the dust suction pipe 14 and are captured by the filter cotton layer 12, thereby protecting the working environment and the health of the workers.

[0035] Furthermore, the suction time of the dust suction pipe 14 is longer than the welding time by setting the inner diameter of the dust suction pipe 14, so as to ensure that the dust suction pipe 14 is working during the whole welding process. After the air pressure above the piston 7 is normal, the first solenoid valve 13 is closed.

[0036] In a further preferred embodiment of the present invention, Figure 2 As shown, a plurality of exhaust pipes 15 are fixedly provided on the upper half of the inner wall of the cavity 6. One end of the exhaust pipe 15 away from the cavity 6 is fixedly passed through the collecting box 11 and extends to the upper outside of the placement groove 2. A second solenoid valve 16 is fixedly sleeved on the outer peripheral surface of the exhaust pipe 15.

[0037] In this embodiment, in the initial state, the second solenoid valve 16 is in a closed state. When the circuit board welding is completed, the electric push rod 3 drives the piston 7 to move upward, and the air flow above the piston 7 is squeezed out and sprayed to the top of the circuit board through the exhaust pipe 15 to accelerate the hardening of the circuit board solder joints.

[0038] In a further preferred embodiment of the present invention, Figure 1 As shown, a conveyor belt 17 is provided below the workbench 1 at a position corresponding to the bottom groove 9 .

[0039] In this embodiment, the circuit board directly falls onto the conveyor belt 17 after passing through the placement groove 2 and the bottom groove 9. The conveyor belt 17 transports the soldered circuit board, thereby automatically unloading the material and improving the work efficiency.

[0040] Furthermore, the outer surface of the conveyor belt 17 is made of rubber material and has elasticity, thereby ensuring that the circuit board will not be damaged when it falls onto the conveyor belt.

[0041] In a further preferred embodiment of the present invention, Figure 3 As shown, through holes 18 are provided on the top of the sliding plate 1061 and the bottom wall of the cavity 6 .

[0042] In this embodiment, the opening of the through hole 18 allows the area below the piston 7 to communicate with the external environment, so when the piston 7 moves, the sliding plate 1061 will not be driven to move by air pressure.

[0043] The implementation principle of the above embodiment is:

[0044] In the initial state, the first solenoid valve 13 and the second solenoid valve 16 are both in a closed state, the spring 1065 is in a natural state, and the rotating plate 103 is horizontal and partially covers the placement slot 2.

[0045] Place the circuit board in the placement slot 2, start the electric push rod 3, the electric push rod 3 drives the top plate 4 to move downward, and the top plate 4 drives the welding gun 5, the vertical rod 8 and the piston 7 to move downward until the welding gun 5 contacts the circuit board. During this process, negative pressure is generated above the piston 7. When the welding gun 5 works to weld the circuit board, the first solenoid valve 13 is opened, and the negative pressure above the piston 7 is sucked. The harmful smoke generated during the welding process enters the collection box 11 through the dust suction pipe 14 and is captured by the filter cotton layer 12. After the air pressure above the piston 7 is normal, the first solenoid valve 13 is closed.

[0046] Then the electric push rod 3 works in the reverse direction, driving the top plate 4, the welding gun 5, the vertical rod 8 and the piston 7 to move upward to restore the initial position. During this process, the second solenoid valve 16 opens, the airflow above the piston 7 is squeezed out and sprayed to the top of the circuit board through the exhaust pipe 15, accelerating the hardening of the circuit board solder joints.

[0047] After the top plate 4 returns to its initial position, the electric push rod 3 continues to work, driving the top plate 4 to continue to move upward, the piston 7 moves upward so that the connecting rope 1062 is straightened, the connecting rope 1062 pulls the sliding plate 1061 upward, and the spring 1065 is stretched. The sliding plate 1061 drives the spur rack 1063 to move, the spur rack 1063 drives the driven gear 1064 to rotate, the driven gear 1064 drives the rotating rod 101 to rotate, the rotating rod 101 drives the screw 102 to rotate, thereby driving the screw block 105 to move downward, the screw block 105 drives the connecting rod 104 to move, the connecting rod 104 drives the rotating plate 103 to rotate, and finally the rotating plate 103 rotates to a vertical state, the placement slot 2 is fully exposed, and the circuit board in the placement slot 2 passes through the placement slot 2 and the bottom slot 9 and falls onto the conveyor belt 17 to be transported away.

[0048] Finally, the electric push rod 3 works in the reverse direction, driving the top plate 4 to move downward to its original position, the sliding plate 1061 returns to its original position under the restoring force of the spring 1065, the rotating plate 103 returns to a horizontal state, and the second solenoid valve 16 is closed.

[0049] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A circuit board welding device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a placement groove (2) at the top, a circuit board is placed in the placement groove (2) and the outer wall of the circuit board is in contact with the inner wall of the placement groove (2); two electric push rods (3) are fixedly connected to the top of the workbench (1); the output ends of the two electric push rods (3) are fixedly connected to a top plate (4); a welding gun (5) is fixedly connected to the bottom of the top plate (4) located just above the placement groove (2); cavities (6) are provided in the workbench (1) at opposite sides of the placement groove (2); a piston (7) is slidably connected in the cavity (6); two vertical rods (8) are fixedly connected to the bottom of the top plate (4); the vertical rods (8) slide through the upper half of the workbench (1) and are fixedly connected to the top of the corresponding piston (7); a bottom groove (9) is provided at the bottom of the workbench (1); the placement groove (2) is communicated with the bottom groove (9); an adjustment portion (10) is provided in the bottom groove (9).

2. A circuit board welding device according to claim 1, characterized in that: The adjusting portion (10) comprises two rotating rods (101), wherein the rotating rods (101) rotate and pass through the bottom groove (9) and the two cavities (6); the inner top wall of the bottom groove (9) is rotatably connected with four screw rods (102); the bottom ends of the screw rods (102) are transmission-connected with the corresponding rotating rods (101) via a bevel gear set; the inner top wall of the bottom groove (9) is hinged with two rotating plates (103); the bottom surface of the rotating plate (103) is hinged with a connecting rod (104); the outer peripheral surface of the screw rod (102) is threadedly connected with a screw block (105); the bottom end of the connecting rod (104) is hinged with the corresponding screw block (105); and a transmission portion (106) is arranged in the cavity (6).

3. A circuit board welding device according to claim 2, characterized in that: The transmission part (106) comprises a sliding plate (1061) slidably connected to the cavity (6); a plurality of connecting ropes (1062) are fixedly connected to the bottom of the piston (7); the bottom ends of the connecting ropes (1062) are fixedly connected to the sliding plate (1061); two spur racks (1063) are fixedly connected to the bottom of the sliding plate (1061); a driven gear (1064) is fixedly sleeved on the outer peripheral surface of the rotating rod (101) located in the cavity (6); the spur racks (1063) are meshed with the corresponding driven gears (1064); a plurality of springs (1065) are fixedly connected between the bottom of the sliding plate (1061) and the inner bottom wall of the cavity (6); when the springs (1065) are in a natural state, the rotating plate (103) is in a horizontal state and partially covers the placement groove (2).

4. A circuit board welding device according to claim 3, characterized in that: A collecting box (11) is fixedly connected to the top of the workbench (1), a filter cotton layer (12) is fixedly connected inside the collecting box (11), the upper half of the cavity (6) is connected to the collecting box (11) through a pipeline, and a first solenoid valve (13) is fixedly sleeved on the outer peripheral side of the pipeline between the cavity (6) and the collecting box (11), a plurality of dust suction pipes (14) are fixedly penetrated on one side of the collecting box (11), and the end of the dust suction pipe (14) away from the collecting box (11) is fixedly passed through the workbench (1) and extends to the inner wall of the placement groove (2).

5. A circuit board welding device according to claim 4, characterized in that: A plurality of exhaust pipes (15) are fixedly provided on the upper half of the inner wall of the cavity (6); one end of the exhaust pipe (15) away from the cavity (6) is fixedly passed through the collection box (11) and extends to the upper part of the outer side of the placement groove (2); and a second solenoid valve (16) is fixedly sleeved on the outer peripheral surface of the exhaust pipe (15).

6. A circuit board welding device according to claim 5, characterized in that: A conveyor belt (17) is provided below the workbench (1) at a position corresponding to the bottom groove (9).

7. A circuit board welding device according to claim 6, characterized in that: The top of the sliding plate (1061) and the inner bottom wall of the cavity (6) are both provided with through holes (18).

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