Welding device for circuit board processing

Abstract

The invention relates to a circuit board processing welding device which comprises a conveying belt arranged between two sets of racks, a welding mechanism is arranged above the conveying belt, locking mechanisms extending to the position above the conveying belt are arranged on the racks, each locking mechanism comprises a mounting plate driven by a hydraulic rod, rotating shafts are arranged on the front side and the rear side of each mounting plate, and the rotating shafts are connected with the hydraulic rods. A driving wheel is arranged at the bottom end of the rotating shaft, gears I are arranged at the top end of the rotating shaft, and a gear II driven by a motor I is arranged between two sets of gears I. The welding mechanism comprises supports arranged on the machine frame, lead screws driven by a motor II are arranged on two sets of supports, and sliding seats for fixing electric push rods are arranged on the lead screws. A mounting seat is arranged at the bottom of the electric push rod, a mounting cavity is formed in the bottom of the mounting seat, a circular seat is arranged in the mounting cavity, a driving shaft driven by a motor III is arranged on the circular seat, and a fan-shaped groove for mounting a welding gun and a cooling mechanism is formed in the outer wall of the circular seat. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The invention relates to the field of circuit board processing, and in particular to a welding device for circuit board processing. Background Art

[0002] In the prior art, an employee places a circuit board on a clamping mechanism, and then uses a tightening mechanism to limit and fix circuit boards of different sizes laterally, and then uses a clamping mechanism to limit and clamp them vertically. After welding is completed, the clamping mechanism and the tightening mechanism are released, and the employee can take out the circuit board, so that circuit boards of different sizes can be fixed and limited.

[0003] Specifically, a welding device for processing circuit boards with patent number CN114535888B has the following problems when in use, such as: 1. It cannot displace the circuit board while clamping it, resulting in the need to clamp the circuit board through a limiting mechanism when welding different front and rear areas of the circuit board. After the welding gun welds multiple lateral positions of the circuit board, the limiting mechanism releases the circuit board, and then the conveyor belt drives the circuit board forward. At the same time, the limiting mechanism clamps the circuit board again, and so on, so that welding is performed on different areas on the front and rear sides of the circuit board, which requires frequent switching of the contact state between the limiting mechanism and the circuit board, thereby affecting the processing efficiency and effect; 2. When the welding gun has a problem, it needs to be replaced in time, which affects the continuity of the processing work, thereby affecting the processing efficiency, and multiple-point welding in the same area is prone to cause local high temperature of the circuit board, thereby affecting its processing safety. Summary of the invention

[0004] The purpose of the present invention is to provide a welding device for processing a circuit board.

[0005] The technical problem of the present invention is mainly solved by the following technical solutions:

[0006] A welding device for processing a circuit board comprises a conveyor belt arranged between two sets of frames, and a welding mechanism is arranged directly above the conveyor belt:

[0007] The frame is provided with a locking mechanism extending to the top of the conveyor belt for clamping and fixing the circuit board, and the locking mechanism drives the circuit board to move back and forth on the conveyor belt. The locking mechanism includes a mounting plate driven by a hydraulic rod, and a rotating shaft is vertically arranged on both the front and rear sides of the mounting plate. A driving wheel is arranged at the bottom of the rotating shaft, and a rubber ring is arranged on the driving wheel. A strip groove is axially arranged on the outer wall of the rubber ring. A gear I is arranged at the top of the rotating shaft, wherein a gear II meshing with the two sets of gears I is arranged between them, and the gear II is driven by a motor I, and the motor I is fixed on the L-shaped plate at the top of the mounting plate;

[0008] The welding mechanism includes a bracket arranged on a frame, wherein two groups of brackets are provided with screws driven by a motor II, a sliding seat for fixing an electric push rod is provided on the screw, a mounting seat is provided at the bottom of the electric push rod, a mounting cavity with a superior arc structure extending to the inside of the mounting seat is provided at the bottom of the mounting seat, a circular seat with a bottom end extending to the bottom of the mounting seat is provided in the mounting cavity, a driving shaft driven by a motor III and extending to the outside of the mounting seat is provided on the circular seat, and four groups of fan-shaped grooves are evenly provided on the outer wall of the circular seat, wherein welding guns are provided in the upper and lower groups of fan-shaped grooves, and cooling mechanisms are provided in the left and right groups of fan-shaped grooves.

[0009] Preferably, one end of the welding gun extends into the mounting cavity outside the circular seat.

[0010] Preferably, a ventilation channel having one end connected to the outside thereof is provided in the side wall of the drive shaft, wherein a connecting hole connected to the ventilation channel is provided on the side wall of the fan-shaped groove on which the cooling mechanism is installed, and the cooling mechanism includes a fan installed in the corresponding fan-shaped groove.

[0011] Preferably, the slide seat is provided with a screw hole for the screw rod to pass through and a sliding hole for the sliding rod to pass through, the screw rod is screwed to the screw hole, and both ends of the sliding rod are fixedly connected to the corresponding brackets.

[0012] Preferably, one end of the driving wheel extends to a position directly below the outer side of a mounting plate, and a bearing for fixing the rotating shaft is provided on the mounting plate.

[0013] Preferably, bristles are radially arranged on the outer side wall of the circular seat and are located between any two adjacent groups of fan-shaped grooves.

[0014] The beneficial effects of the present invention are as follows: the present invention locks and fixes the circuit board through a locking mechanism, and at the same time, it can drive the circuit board to move forward and backward while fixing the circuit board, so that the welding mechanism can perform welding work on different areas of the top of the circuit board, wherein while the circuit board is welded by the welding mechanism, the welding position can also be cooled and dusted, and because the positions of multiple welding guns are switched by rotating the circular seat, they can all be rotated to the bottom to weld the circuit board, so that after a welding gun is damaged, there is no need to stop the machine for replacement, and the processing work can be continuously carried out, and it can be replaced after the processing is completed, thereby effectively improving its processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 is a cross-sectional view of the present invention;

[0017] Figure 3 yes Figure 2A partial enlarged view of

[0018] Figure 4 is a top view of the locking mechanism of the present invention;

[0019] Figure 5 yes Figure 3 Section view from the right side.

[0020] In the figure: 1, frame, 2, conveyor belt, 3, welding mechanism, 31, bracket, 32, screw, 33, motor II, 34, slide bar, 35, slide seat, 36, electric push rod, 37, mounting seat, 38, mounting cavity, 39, circular seat, 310, drive shaft, 311, motor III, 312, fan-shaped groove, 313, welding gun, 314, cooling mechanism, 315, bristles, 4, locking mechanism, 41, mounting plate, 42, hydraulic rod, 43, rotating shaft, 44, driving wheel, 45, gear I, 46, gear II, 47, motor I, 48, L-shaped plate, 5, ventilation channel, 6, connecting hole. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] A welding device for processing a circuit board comprises a conveyor belt 2 arranged between two sets of frames 1, and a welding mechanism 3 is arranged directly above the conveyor belt 2:

[0023] The frame 1 is provided with a locking mechanism 4 extending to the top of the conveyor belt 2 for clamping and fixing the circuit board, and the locking mechanism 4 drives the circuit board to move back and forth on the conveyor belt 2, and the locking mechanism 4 includes a mounting plate 41 driven by a hydraulic rod 42, and a rotating shaft 43 is vertically arranged on both the front and rear sides of the mounting plate 41, and a driving wheel 44 is arranged at the bottom end of the rotating shaft 43, and a rubber ring is arranged on the driving wheel 44, and a strip groove is axially arranged on the outer wall of the rubber ring, and a gear I45 is arranged at the top of the rotating shaft 43, wherein a gear II46 meshing with the two sets of gears I45 is arranged between them, and the gear II46 is driven by a motor I47, and the motor I47 is fixed on the L-shaped plate 48 at the top of the mounting plate 41;

[0024] The welding mechanism 3 includes a bracket 31 arranged on the frame 1, wherein two groups of brackets 31 are provided with screw rods 32 driven by motor II33, and a slide seat 35 for fixing an electric push rod 36 is provided on the screw rod 32, and a mounting seat 37 is provided at the bottom of the electric push rod 36, and a mounting cavity 38 with a superior arc structure extending to the inside of the mounting seat 37 is provided at the bottom of the mounting seat 37, and a circular seat 39 with a bottom end extending to the bottom of the mounting seat 37 is provided in the mounting cavity 38, and a driving shaft 310 extending to the outside of the mounting seat 37 and driven by motor III311 is provided on the circular seat 39, and four groups of fan-shaped grooves 312 are evenly arranged on the outer wall of the circular seat 39, wherein welding guns 313 are arranged in the upper and lower groups of fan-shaped grooves 312, and cooling mechanisms 314 are arranged in the left and right groups of fan-shaped grooves 312, and bristles 315 located between any two adjacent groups of fan-shaped grooves 312 are radially arranged on the outer wall of the circular seat 39.

[0025] like Figure 2 , 3 As shown, one end of the welding gun 313 extends into the mounting cavity 38 outside the circular seat 39 .

[0026] like Figure 5 As shown, a ventilation channel 5 having one end connected to the outer side of the driving shaft 310 is provided in the side wall, wherein a connecting hole 6 connected to the ventilation channel 5 is provided on the side wall of the fan-shaped groove 312 on which the cooling mechanism 314 is installed, and the cooling mechanism 314 includes a fan installed in the corresponding fan-shaped groove 312.

[0027] In this embodiment, the slide seat 35 is provided with a screw hole for the screw rod 32 to pass through and a sliding hole for the slide rod 34 to pass through. The screw rod 32 is screwed into the screw hole, and both ends of the slide rod 34 are fixedly connected to the corresponding bracket 31.

[0028] In this embodiment, one end of the driving wheel 44 extends to the lower part of the outer side of the mounting plate 41 , and a bearing for fixing the rotating shaft 43 is provided on the mounting plate 41 .

[0029] The method of using the present invention is as follows: when the conveyor belt 2 conveys the circuit board to the locking mechanism 4, the hydraulic rod 42 drives the mounting plate 41 and the rotating shaft 42 to drive the driving wheel 43 to move, thereby reducing the distance between the driving wheels 43 on both sides so that they abut against the edge of the circuit board, and then the circuit board is locked and fixed by multiple groups of driving wheels 43 on both sides with multi-point contact. At this time, the striped pattern on the outer wall of the rubber ring on the driving wheel 43 can effectively enhance the friction between the two, thereby reducing the probability of the circuit board sliding without human intervention;

[0030] At this time, the electric push rod 36 drives the mounting seat 37 and the circular seat 39 to drive the welding gun 313 to move downward, thereby performing welding work on the top of the circuit board. At the same time, the motor II33 can drive the screw rod 32 to rotate in the screw hole in the slide seat 35 to drive the slide seat 35, the electric push rod 36, the mounting seat 37, the circular seat 39 and the welding gun 313 to move horizontally on the top of the circuit board, thereby realizing welding work at several horizontal positions on the top of the circuit board;

[0031] When the circuit board is welded by moving the welding gun 313 downward, the welding gun 313 is driven to move upward after welding is completed. At this time, the motor III311 drives the circular seat 39 to rotate 90 degrees clockwise through the driving shaft 310, so that the fan-shaped groove 312 in the circular seat 39 drives the welding gun 313 and the cooling mechanism 314 to rotate. When the circular seat 39 rotates, it will drive the bristles 315 to rotate, so that the bristles 315 have a scraping and cleaning effect on the welding part on the top of the circuit board, so that the impurities on the top welding part are swept away. When the cooling mechanism 314 is located directly above the welding part, the strong wind generated by the fan will draw the heat and scattered impurities emitted from the welding part into the fan-shaped groove 312, and then enter the ventilation channel 5 through the connecting hole 6 and be discharged, so as to prevent the welding part on the top of the circuit board from being at high temperature and affecting its safety. Of course, it can also be used in the ventilation channel 5. A connecting pipe is inserted into the outlet end, and the connecting pipe is fixed on the mounting seat 37 by an L-shaped rod. One end of the connecting pipe is connected to the filtering mechanism to filter the extracted gas. When the mounting seat 37 moves to the specified position, the motor III311 drives the welding gun 313 to rotate 90 degrees counterclockwise through the driving shaft 310, resets it, and then moves down. Then, welding work is performed on the top of the circuit board, thereby realizing welding work at several horizontal positions on the top of the circuit board, and cooling and dust removal are performed on the welding position during welding. Since the positions of multiple welding guns 313 are switched by rotating the circular seat 39, they can all be rotated to the bottom to weld the circuit board, so that if one of them is damaged, there is no need to stop the machine for replacement, and the processing work can be carried out continuously. After the processing is completed, it can be replaced, thereby effectively improving its processing efficiency.

[0032] When welding is required at different front and rear areas of the circuit board, the two sets of locking mechanisms 4 do not need to loosen the circuit board. The motor I47 only needs to drive the corresponding two sets of gears I45 to rotate through the gear II46. The gear I45 drives the driving wheel 44 to rotate through the rotating shaft 43. The driving wheel 44 drives the circuit board to move back and forth on the conveyor belt 2 through the stripes on the side wall of the rubber ring, thereby facilitating the welding gun 313 to perform welding work on different front and rear areas of the top of the circuit board.

[0033] The present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A welding device for processing a circuit board, comprising a conveyor belt arranged between two sets of frames, a welding mechanism being arranged directly above the conveyor belt, characterized in that: The frame is provided with a locking mechanism extending to the top of the conveyor belt for clamping and fixing the circuit board, and the locking mechanism drives the circuit board to move back and forth on the conveyor belt. The locking mechanism includes a mounting plate driven by a hydraulic rod, and a rotating shaft is vertically arranged on both the front and rear sides of the mounting plate. A driving wheel is arranged at the bottom of the rotating shaft, and a rubber ring is arranged on the driving wheel. A strip groove is axially arranged on the outer wall of the rubber ring. A gear I is arranged at the top of the rotating shaft, wherein a gear II meshing with the two sets of gears I is arranged between them, and the gear II is driven by a motor I, and the motor I is fixed on the L-shaped plate at the top of the mounting plate; The welding mechanism includes a bracket arranged on a frame, wherein two groups of brackets are provided with screws driven by a motor II, a sliding seat for fixing an electric push rod is provided on the screw, a mounting seat is provided at the bottom of the electric push rod, a mounting cavity with a superior arc structure extending to the inside of the mounting seat is provided at the bottom of the mounting seat, a circular seat with a bottom end extending to the bottom of the mounting seat is provided in the mounting cavity, a driving shaft driven by a motor III and extending to the outside of the mounting seat is provided on the circular seat, and four groups of fan-shaped grooves are evenly provided on the outer wall of the circular seat, wherein welding guns are provided in the upper and lower groups of fan-shaped grooves, and cooling mechanisms are provided in the left and right groups of fan-shaped grooves.

2. A circuit board processing welding device according to claim 1, characterized in that: One end of the welding gun extends into the mounting cavity outside the circular seat.

3. A circuit board processing welding device according to claim 1, characterized in that: The side wall of the driving shaft is provided with a ventilation channel with one end connected to the outside thereof, wherein the side wall of the fan-shaped groove on which the cooling mechanism is installed is provided with a connecting hole connected to the ventilation channel, and the cooling mechanism includes a fan installed in the corresponding fan-shaped groove.

4. A welding device for circuit board processing according to claim 1, characterized in that: The slide seat is provided with a screw hole for the screw rod to pass through and a sliding hole for the slide rod to pass through. The screw rod is screwed to the screw hole, and both ends of the slide rod are fixedly connected to the corresponding brackets.

5. A circuit board processing welding device according to claim 1, characterized in that: One end of the driving wheel extends to the position directly below the outer side of the mounting plate, and a bearing for fixing the rotating shaft is arranged on the mounting plate.

6. A circuit board processing welding device according to claim 1, characterized in that: Brush bristles are radially arranged on the outer side wall of the circular seat and are located between any two adjacent groups of fan-shaped grooves.

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