Automatic welding equipment for PCB (Printed Circuit Board)

Abstract

The invention relates to the related technical field of mechanical engineering, in particular to PCB automatic welding equipment which comprises supporting legs, a table top is fixedly connected to the upper surfaces of the supporting legs, a PCB feeding mechanism is fixedly connected to the upper surface of the table top, and a circuit line feeding and PCB discharging mechanism is fixedly connected to the upper surface of the table top. According to the automatic welding equipment for the PCB, the PCB feeding mechanism is arranged, when the automatic welding equipment is used, the discharging module area, the machining module area and the feeding module area are pushed to move, rapid feeding is achieved, when the automatic welding equipment for the PCB is used, a feeding motor and a first erecting cutter are started through the circuit line feeding mechanism and the PCB discharging mechanism, clamping and displacement of a circuit line needing to be welded are achieved, and the automatic welding equipment for the PCB is convenient to use. When discharging is needed, the discharging push rod is started, discharging can be achieved, compared with a feeding and discharging mode of a mechanical arm, a large number of redundant actions do not exist, the feeding and discharging time is too short, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to mechanical engineering, and in particular to an automatic welding device for PCB boards. Background Art

[0002] In the field of mechanical engineering technology, the traditional PCB board welding method has many limitations. In the early stage of manual welding, it mainly depends on the workers' operating skills, which is not only inefficient, but also has uneven welding quality and is easily affected by human factors, such as fatigue and operating errors. With the expansion of production scale, the requirements for welding accuracy and speed continue to increase. Simple manual tools are difficult to meet the welding needs of complex PCB boards. In addition, the control of force during the welding process is not fine enough, and it is impossible to accurately apply appropriate pressure according to different welding materials and process requirements, which also has a negative impact on the welding quality. Therefore, there is a special need for a PCB board automatic welding equipment.

[0003] However, existing PCB automatic soldering equipment often uses a robotic arm to load and unload PCB boards. This loading and unloading method has a large number of redundant actions due to the insufficient optimization of the motion path planning of the robotic arm, and the design of its grabbing and releasing mechanism is not sophisticated enough. When clamping and placing PCB boards, it requires a complex action process and a long positioning time, which makes the loading and unloading time too slow, affecting production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic soldering device for PCB boards to solve the problem that the existing automatic soldering devices for PCB boards proposed in the above background technology often use a robotic arm to load and unload PCB boards. This loading and unloading method has a large number of redundant actions due to the insufficient optimization of the motion path planning of the robotic arm, and the design of its grabbing and releasing mechanism is not sophisticated enough. When clamping and placing the PCB board, a complex action process and a long positioning time are required, which makes the loading and unloading time too slow, affecting the production efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PCB board automatic welding device, comprising a support leg, the upper surface of the support leg is fixedly connected to a desktop, the lower surface of the desktop is fixedly connected to a feed trough, a side surface of the feed trough is fixedly connected to a drawer, a side surface of the drawer is fixedly connected to a feed box, a side surface of the feed box is fixedly connected to a handle, a PCB board feeding mechanism is fixedly connected to the upper surface of the desktop, a circuit line feeding and PCB board feeding mechanism are fixedly connected to the upper surface of the desktop, and a welding mechanism is fixedly connected to the upper surface of the desktop;

[0006] The PCB board feeding mechanism includes a feeding push rod, a discharge module area, a processing module area, a feeding module area, a PCB board limiting cylinder, a fixed frame, a frame buckle and a connecting column. The upper surface of the desktop is fixedly connected with the feeding push rod, and the one side surface of the feeding push rod is fixedly connected with the discharge module area, and the one side surface of the discharge module area is fixedly connected with the processing module area, and the one side surface of the processing module area is fixedly connected with the feeding module area. The upper surface of the processing module area is slidably connected with a PCB board limiting cylinder, and the one side surface of the PCB board limiting cylinder is fixedly connected with the fixed frame, and the one side surface of the fixed frame is clamped and connected with the frame buckle, and the one side surface of the fixed frame is fixedly connected with a connecting column.

[0007] Preferably, the support legs are symmetrically arranged in four groups with respect to the central axis of the table top, and the drawers are fixedly connected with two groups on both side surfaces of the material box.

[0008] Preferably, the heights of the unloading module area and the processing module area are the same, and the height of the loading module area is slightly lower than the heights of the unloading module area and the processing module area.

[0009] Preferably, PCB boards can be stacked and placed inside the PCB board limiting cylinder. When the loading push rod drives the unloading module area, the processing module area and the loading module area to move, the PCB boards will be unloaded due to the height difference between the different module areas. The fixed frame and the frame buckle fix the PCB board limiting cylinder just above the unloading module area and the processing module area, and are slidably connected to the highest module area.

[0010] Preferably, the circuit line loading and PCB board unloading mechanism includes a loading fixed block, a loading motor, a displacement threaded column, a bearing, a displacement column, a first coupling, a first coupling knife, a unloading push rod, a telescopic block and a clamping arm. The upper surface of the desktop is fixedly connected with the loading fixed block, one side surface of the loading fixed block is fixedly connected with the loading motor, one side surface of the feeding motor is fixedly connected with the displacement threaded column, one side surface of the displacement threaded column is fixedly connected with the bearing, one side surface of the displacement threaded column is slidably connected with the displacement column, one side surface of the displacement column is fixedly connected with the first coupling, one side surface of the first coupling is fixedly connected with the first coupling knife, one side surface of the fixed block is fixedly connected with the unloading push rod, one side surface of the unloading push rod is fixedly connected with the telescopic block, and one side surface of the telescopic block is fixedly connected with the clamping arm.

[0011] Preferably, the displacement column is a Z-shaped connecting column, and the first coupling knife is aligned on the central plane of the loading module area. The first coupling knife is symmetrically arranged in two groups with respect to the central axis of the first coupling device.

[0012] Preferably, the clamping arms are symmetrically arranged in two groups along the central axis of the lower material push rod, and the telescopic block can drive the clamping arms to perform a small range of clamping movement.

[0013] Preferably, the welding mechanism includes an x-displacement column, a y-displacement column, a vertical pushing rod, a second coupler, a second coupler knife, a connecting block, a welding push rod and a welder, the upper surface of the table top is fixedly connected to the x-displacement column, the one side surface of the x-displacement column is fixedly connected to the y-displacement column, the lower surface of the y-displacement column is fixedly connected to the vertical pushing rod, the lower surface of the vertical pushing rod is fixedly connected to the second coupler, the lower surface of the second coupler is fixedly connected to the second coupler knife, the one side surface of the second coupler is fixedly connected to the connecting block, the one side surface of the connecting block is fixedly connected to the welding push rod, and the one side surface of the welding push rod is fixedly connected to the welder.

[0014] Preferably, the vertical push rod can be freely moved and controlled on the x and y axes by setting the x displacement column and the y displacement column, and the second coupling knife is symmetrically arranged in two groups along the central axis of the second coupling.

[0015] Preferably, the welding push rod and the welder can rotate around the second knife holder within a certain range through the connecting block, and the top end of the welder can contact the top end of the second knife holder by rotating.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the PCB board automatic soldering equipment, through the setting of the PCB board feeding mechanism, starts the feeding push rod when it is necessary to feed, and the feeding push rod pushes the unloading module area, the processing module area and the feeding module area to move, first pushes the feeding module area to the bottom of the PCB board limiting cylinder, because the feeding module area is lower than the height of other module areas, the PCB board as a whole moves downward by a thickness unit of the PCB board, and then the feeding push rod pushes forward a module area, and the processing module area pushes the bottom PCB board outward, exposes the PCB board to the processing area, and then starts processing. In this way, compared with the mechanical arm type feeding, there will be no large number of redundant actions, and the feeding can be achieved by only pulling and pushing, thereby improving the production efficiency. When loading the circuit line, the loading motor is started, and the loading motor drives the displacement column to move back and forth by driving the displacement thread column. At the same time, due to the setting of the bearing, the sliding friction of the displacement thread column is converted into rolling friction, which reduces the wear during use and prolongs the service life. Then the first clamp clamps the circuit line to be welded through the first clamp knife, and then accurately moves it to the designated place to complete the displacement. When unloading is required after the processing is completed, the unloading push rod is started, and the unloading push rod pushes the telescopic block and the clamp arm forward. At the same time, the telescopic block drives the clamp arm to open slightly, and the PCB board is wrapped. Then the unloading push rod is pulled back to realize the unloading of the PCB board. Compared with the loading and unloading method of the robot arm, such a setting does not have a large number of redundant actions, and the design of its grasping and releasing mechanism is relatively sophisticated. When clamping and placing the PCB board, there is no need for complicated action procedures and more positioning time, which makes the loading and unloading time too fast, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the side appearance structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the basic overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the material discharge chute, the drawer and the material discharge box cooperating with each other in the present invention;

[0020] Figure 4 This is a schematic diagram of the structure in which the PCB board limiting cylinder, the fixing frame and the frame buckle lock cooperate with each other in the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the PCB board feeding mechanism of the present invention;

[0022] Figure 6 It is a partial structural schematic diagram of the welding mechanism of the present invention;

[0023] Figure 7It is a schematic diagram of the structure of the motor, displacement thread column, bearing and displacement column cooperating with each other in the present invention;

[0024] Figure 8 It is a schematic diagram of the structure in which the material unloading push rod, the telescopic block and the clamping arm cooperate with each other in the present invention.

[0025] In the figure: 1. Support legs; 2. Table top; 3. Feeding slot; 4. Pull-out; 5. Feeding box; 6. Handle; 7. PCB board feeding mechanism; 701. Feeding push rod; 702. Unloading module area; 703. Processing module area; 704. Feeding module area; 705. PCB board limiting cylinder; 706. Fixed frame; 707. Frame buckle; 708. Connecting column; 8. Circuit line feeding and PCB board feeding mechanism; 801. Feeding fixed block; 802 , feeding motor; 803, displacement threaded column; 804, bearing; 805, displacement column; 806, first frame clutch; 807, first frame knife; 808, unloading push rod; 809, telescopic block; 810, clamping arm; 9, welding mechanism; 901, x displacement column; 902, y displacement column; 903, vertical push rod; 904, second frame clutch; 905, second frame knife; 906, connecting block; 907, welding push rod; 908, welder. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-8 The present invention provides a technical solution: a PCB board automatic welding device, comprising a support leg 1, a desktop 2 is fixedly connected to the upper surface of the support leg 1, a material discharge trough 3 is fixedly connected to the lower surface of the desktop 2, a drawer 4 is fixedly connected to one side surface of the material discharge trough 3, a material discharge box 5 is fixedly connected to one side surface of the drawer 4, a handle 6 is fixedly connected to one side surface of the material discharge box 5, a PCB board feeding mechanism 7 is fixedly connected to the upper surface of the desktop 2, a circuit line feeding and PCB board unloading mechanism 8 is fixedly connected to the upper surface of the desktop 2, and a welding mechanism 9 is fixedly connected to the upper surface of the desktop 2;

[0028] The PCB board feeding mechanism 7 includes a feeding push rod 701, a discharge module area 702, a processing module area 703, a feeding module area 704, a PCB board limiting cylinder 705, a fixed frame 706, a frame buckle 707 and a connecting column 708. The upper surface of the desktop 2 is fixedly connected with the feeding push rod 701, and the one side surface of the feeding push rod 701 is fixedly connected with the discharge module area 702, and the one side surface of the discharge module area 702 is fixedly connected with the processing module area 703, and the one side surface of the processing module area 703 is fixedly connected with the feeding module area 704. The upper surface of the processing module area 703 is slidably connected with the PCB board limiting cylinder 705, and the one side surface of the PCB board limiting cylinder 705 is fixedly connected with the fixed frame 706, and the one side surface of the fixed frame 706 is clamped and connected with the frame buckle 707, and the one side surface of the fixed frame 706 is fixedly connected with the connecting column 708. The unloading module area 702, the processing module area 703, the loading module area 704, the PCB board limiting cylinder 705, the fixed frame 706, the frame buckle 707 and the connecting column 708 are set. When in use, the loading push rod 701 is started, and the loading push rod 701 pushes the unloading module area 702, the processing module area 703 and the loading module area 704 to move. First, the loading module area 704 is pushed below the PCB board limiting cylinder 705. Since the loading module area 704 is lower than the height of other module areas, the PCB board moves downward as a whole by a thickness unit of the PCB board. Then the loading push rod 701 pushes forward one module area, and the processing module area 703 pushes the bottom PCB board outward to expose the PCB board to the processing area, and then the processing begins. Compared with the mechanical arm type loading, this setting does not have a large number of redundant actions, and loading can be achieved by only pulling and pushing, thereby improving production efficiency.

[0029] Furthermore, four groups of support legs 1 are symmetrically arranged around the central axis of the desktop 2, and two groups of drawers 4 are fixedly connected to the two side surfaces of the unloading box 5. Through the arrangement of the support legs 1 and the drawers 4, when in use, the symmetrical distribution of the four groups of support legs 1 can provide uniform and stable supporting force for the desktop. When the equipment is placed on a plane, this uniform force distribution method can effectively prevent the desktop from tilting or shaking due to uneven force, especially during the operation of the PCB board automatic welding equipment, it can ensure the stability of the welding operation and reduce the welding error that may be caused by the shaking of the equipment. The connection method of one group on each side can ensure the balance of the drawer 4 during the movement, and avoid the obstruction of PCB board unloading due to the poor pulling of the drawer 4, thereby affecting the production efficiency.

[0030] Furthermore, the heights of the unloading module area 702 and the processing module area 703 are the same, and the height of the loading module area 704 is slightly lower than that of the unloading module area 702 and the processing module area 703. Through the arrangement of the unloading module area 702, the processing module area 703 and the loading module area 704, when in use, the module areas of different heights have different functions under the PCB board limiting cylinder. The shorter loading module area 704 can make the PCB board fall as a whole, and then a push rod will push it out, which facilitates the loading of the PCB board and improves production efficiency.

[0031] Furthermore, PCB boards can be stacked and placed inside the PCB board limiting cylinder 705. When the loading push rod 701 drives the unloading module area 702, the processing module area 703 and the loading module area 704 to move, the PCB boards will be unloaded due to the height difference between the different module areas. The fixed frame 706 and the frame buckle lock 707 fix the PCB board limiting cylinder 705 just above the unloading module area 702 and the processing module area 703, and are slidably connected to the highest module area. Through the setting of the fixed frame 706, when in use, the fixed frame 706 can keep the PCB board limiting cylinder 705 at a certain height to prevent the board limiting cylinder 705 from falling due to gravity, resulting in the inability to discharge the PCB board.

[0032] Furthermore, the circuit line feeding and PCB board unloading mechanism 8 includes a feeding fixed block 801, a feeding motor 802, a displacement threaded column 803, a bearing 804, a displacement column 805, a first frame clamp 806, a first frame clamping knife 807, an unloading push rod 808, a telescopic block 809 and a clamping arm 810. The upper surface of the desktop 2 is fixedly connected with the feeding fixed block 801, and the side surface of the feeding fixed block 801 is fixedly connected with the feeding motor 802, and the side surface of the feeding motor 802 is fixedly connected with the displacement threaded column 803. A bearing 804 is fixedly connected to the surface, a displacement column 805 is slidably connected to one side surface of the displacement threaded column 803, a first coupling device 806 is fixedly connected to one side surface of the displacement column 805, a first coupling knife 807 is fixedly connected to one side surface of the first coupling device 806, a blanking push rod 808 is fixedly connected to one side surface of the fixed block 801, a telescopic block 809 is fixedly connected to one side surface of the telescopic block 809, and a clamping arm 810 is fixedly connected to one side surface of the telescopic block 809. 03, bearing 804, displacement column 805, first coupling 806, first knife clamp 807, unloading push rod 808, telescopic block 809 and clamp arm 810 are set. When in use, the feeding motor 802 is started, and the feeding motor 802 drives the displacement column 805 to move back and forth by driving the displacement thread column 803. At the same time, due to the setting of bearing 804, the sliding friction of the displacement thread column 803 is converted into rolling friction, which reduces the wear during use and prolongs the service life. Then the first coupling 806 transfers the required welding through the first knife clamp 807. The circuit line is clamped and then accurately moved to the designated place to complete the displacement. When unloading is required after the processing is completed, the unloading push rod 808 is started. The unloading push rod 808 pushes the telescopic block 809 and the clamping arm 810 forward. At the same time, the telescopic block 809 drives the clamping arm 810 to open slightly, and the PCB board is wrapped. Then the unloading push rod 808 is pulled back to realize the unloading of the PCB board. Compared with the loading and unloading method of the robot arm, this setting does not have a large number of redundant actions, and the design of its grasping and releasing mechanism is relatively sophisticated. When clamping and placing the PCB board, there is no need for complicated action procedures and more positioning time, which makes the loading and unloading time too fast, thereby improving production efficiency.

[0033] Furthermore, the displacement column 805 is a Z-shaped connecting column, which aligns the first rack of knife clamps 807 on the central plane of the loading module area 704. The first rack of knife clamps 807 are symmetrically arranged in two groups with respect to the central axis of the first rack clamp 806. Through the arrangement of the first rack of knife clamps 807, when in use, the two groups of first rack of knife clamps 807 move relative to each other through the first rack clamp 806, thereby achieving tight clamping of the circuit line to prevent it from falling.

[0034] Furthermore, two groups of clamping arms 810 are symmetrically arranged along the central axis of the lower material push rod 808. The telescopic block 809 can drive the clamping arms 810 to move in a small range of clamping. Through the setting of the telescopic block 809 and the clamping arms 810, when in use, the telescopic block 809 can adjust the clamping position of the clamping arms 810 in a small range, so as to achieve more precise clamping. Different PCB boards may have some slight differences in size, shape or placement in the material rack. By driving the clamping arms to move through the telescopic block 809, the distance between the clamping arms 810 can be flexibly adjusted according to actual conditions to ensure that the clamping arms 810 can fit closely to the edge of the PCB board to achieve reliable clamping.

[0035] Furthermore, the welding mechanism 9 includes an x-displacement column 901, a y-displacement column 902, a vertical push rod 903, a second frame clamp 904, a second frame clamping knife 905, a connecting block 906, a welding push rod 907 and a welder 908. The upper surface of the desktop 2 is fixedly connected with the x-displacement column 901, the side surface of the x-displacement column 901 is fixedly connected with the y-displacement column 902, the lower surface of the y-displacement column 902 is fixedly connected with the vertical push rod 903, the lower surface of the vertical push rod 903 is fixedly connected with the second frame clamp 904, the lower surface of the second frame clamp 904 is fixedly connected with the second frame clamping knife 905, and the second frame clamp 9 04 is fixedly connected to a connecting block 906 on one side surface, a welding push rod 907 is fixedly connected to a welding device 908 on one side surface of the connecting block 906, and through the arrangement of the x-displacement column 901, the y-displacement column 902, the vertical push rod 903, the second coupling 904, the second coupling knife 905, the connecting block 906, the welding push rod 907 and the welder 908, when in use, the welding push rod 907 and the welder 908 can accurately control the directions on the x, y and z axes through the x-displacement column 901, the y-displacement column 902 and the vertical push rod 903 to achieve precise and reliable control.

[0036] Furthermore, the vertical push rod 903 can be freely moved and controlled on the x and y axes by setting the x-displacement column 901 and the y-displacement column 902. The second clamping tool 905 is symmetrically arranged in two groups with the central axis of the second clamp 904. Through the setting of the x-displacement column 901 and the y-displacement column 902, when in use, the vertical push rod that can move freely on the x and y axes can accurately position the processing tool (such as the second clamping tool 905) to any position of the PCB board. Whether it is operating on tiny components on the PCB board or processing along complex circuit tracks, this precise positioning capability is very critical. For example, when performing high-precision welding or cutting operations on the PCB board, free movement control can ensure the accuracy of the processing position, thereby improving product quality.

[0037] Furthermore, the welding push rod 907 and the welder 908 can rotate within a certain range around the second knife 905 through the connecting block 906. The top end of the welder 908 can contact the top end of the second knife 905 by rotating. Through the setting of the welding push rod 907 and the welder 908, when in use, the rotational contact design of the welder 908 and the second knife 905 can achieve coordinated work between the two. For example, before welding, the second knife 905 can first fix or position the PCB board, and then the welder 908 is rotated to a suitable position for welding. The two are closely matched. During the welding process, the second knife 905 can also play a role of auxiliary support to prevent the PCB board from being deformed due to heat and other factors during welding, thereby improving the stability and reliability of welding.

[0038] Working principle: through the setting of the PCB board feeding mechanism 7, when it is necessary to load, start the loading push rod 701, the loading push rod 701 pushes the unloading module area 702, the processing module area 703 and the loading module area 704 to move, first push the loading module area 704 to the bottom of the PCB board limiting cylinder 705, because the loading module area 704 is lower than the height of other module areas, the PCB board as a whole moves downward by a PCB board thickness unit, and then the loading push rod 701 pushes forward a module area, and the processing module area 703 pushes the bottom PCB board outward, exposes the PCB board to the processing area, and then starts processing. Compared with the mechanical arm type loading, this setting does not have a large number of redundant actions, and loading is achieved by only pulling and pushing, thereby improving production efficiency. Through the setting of the circuit line loading and PCB board unloading mechanism 8, when the circuit line is loaded, start the loading motor 802. The feeding motor 802 drives the displacement column 805 to move forward and backward by driving the displacement thread column 803. At the same time, due to the setting of the bearing 804, the sliding friction of the displacement thread column 803 is converted into rolling friction, which reduces the wear during use and prolongs the service life. Then the first clamp 806 clamps the circuit line to be welded through the first clamping knife 807, and then accurately moves it to the designated place to complete the displacement. After the processing is completed and it is necessary to unload the material, start the unloading push rod 808, the unloading push rod 808 pushes the telescopic block 809 and the clamping arm 810 forward, and at the same time the telescopic block 809 drives the clamping arm 810 to open slightly, and the PCB board is wrapped. Then the unloading push rod 808 is pulled back to realize the unloading of the PCB board. Compared with the loading and unloading method of the robot arm, such a setting does not have a large number of redundant actions, and its grabbing and releasing mechanism is relatively sophisticated in design, which is convenient for clamping and placing PCBs. The plate does not require complicated action processes and more positioning time, which makes the loading and unloading time faster and improves production efficiency. The model of the loading push rod 701, the welding push rod 907 and the vertical push rod 903 is YS-NZ100-12A, and the model of the loading motor 802 is YE2-132S-4.

[0039] Although 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 automatic soldering device, comprising a support leg (1), characterized in that: The upper surface of the support leg (1) is fixedly connected to a tabletop (2), the lower surface of the tabletop (2) is fixedly connected to a material discharge trough (3), a drawer (4) is fixedly connected to one side surface of the material discharge trough (3), a drawer (4) is fixedly connected to one side surface of the drawer (4), a material discharge box (5) is fixedly connected to one side surface of the material discharge box (5), a handle (6) is fixedly connected to one side surface of the material discharge box (5), a PCB board feeding mechanism (7) is fixedly connected to the upper surface of the tabletop (2), a circuit line feeding and PCB board unloading mechanism (8) is fixedly connected to the upper surface of the tabletop (2), and a welding mechanism (9) is fixedly connected to the upper surface of the tabletop (2); The PCB board feeding mechanism (7) comprises a feeding push rod (701), a discharge module area (702), a processing module area (703), a feeding module area (704), a PCB board limiting cylinder (705), a fixed frame (706), a frame buckle (707) and a connecting column (708); the upper surface of the table top (2) is fixedly connected to the feeding push rod (701); the side surface of the feeding push rod (701) is fixedly connected to the discharge module area (702); and the side surface of the discharge module area (702) is fixedly connected to the feeding push rod (701). A processing module area (703) is fixedly connected to the processing module area (703), a side surface of the processing module area (703) is fixedly connected to the loading module area (704), an upper surface of the processing module area (703) is slidably connected to a PCB board limiting cylinder (705), a side surface of the PCB board limiting cylinder (705) is fixedly connected to a fixed frame (706), a side surface of the fixed frame (706) is clamped and connected to a frame buckle (707), and a side surface of the fixed frame (706) is fixedly connected to a connecting column (708).

2. The PCB automatic soldering equipment according to claim 1, characterized in that: The support legs (1) are symmetrically arranged in four groups about the central axis of the table top (2), and the drawers (4) are fixedly connected to two respective sides of the material box (5).

3. The PCB automatic soldering equipment according to claim 1, characterized in that: The unloading module area (702) and the processing module area (703) have the same height, and the loading module area (704) has a height slightly lower than the unloading module area (702) and the processing module area (703).

4. The PCB automatic soldering equipment according to claim 1, characterized in that: PCB boards can be stacked and placed inside the PCB board limiting cylinder (705). When the loading push rod (701) drives the unloading module area (702), the processing module area (703) and the loading module area (704) to move, the PCB boards are unloaded due to the height difference between the different module areas. The fixed frame (706) and the frame buckle (707) fix the PCB board limiting cylinder (705) just above the unloading module area (702), the processing module area (703) and the loading module area, and are slidably connected to the highest module area.

5. The PCB automatic soldering equipment according to claim 1, characterized in that: The circuit line loading and PCB board unloading mechanism (8) comprises a loading fixed block (801), a loading motor (802), a displacement threaded column (803), a bearing (804), a displacement column (805), a first frame clamp (806), a first frame clamping knife (807), an unloading push rod (808), a telescopic block (809) and a clamping arm (810); the upper surface of the table top (2) is fixedly connected to the loading fixed block (801); the one side surface of the loading fixed block (801) is fixedly connected to the loading motor (802); the one side surface of the loading motor (802) is fixedly connected to the displacement threaded column (803); A bearing (804) is fixedly connected to one side surface of the displacement threaded column (803); a displacement column (805) is slidably connected to one side surface of the displacement threaded column (803); a first coupling device (806) is fixedly connected to one side surface of the displacement column (805); a first coupling knife (807) is fixedly connected to one side surface of the first coupling device (806); a material discharge push rod (808) is fixedly connected to one side surface of the fixed block (801); a telescopic block (809) is fixedly connected to one side surface of the telescopic block (809); and a clamping arm (810) is fixedly connected to one side surface of the telescopic block (809).

6. The PCB automatic soldering equipment according to claim 5, characterized in that: The displacement column (805) is a Z-shaped connecting column, which aligns the first rack of knife clamps (807) on the central plane of the loading module area (704), and the first rack of knife clamps (807) are symmetrically arranged in two groups around the central axis of the first rack clamp (806).

7. The PCB automatic soldering equipment according to claim 5, characterized in that: The clamping arms (810) are symmetrically arranged in two groups along the central axis of the lower material push rod (808), and the telescopic block (809) can drive the clamping arms (810) to move within a small range of clamping.

8. The PCB automatic soldering equipment according to claim 1, characterized in that: The welding mechanism (9) comprises an x-displacement column (901), a y-displacement column (902), a vertical push rod (903), a second frame clamp (904), a second frame clamp knife (905), a connecting block (906), a welding push rod (907) and a welder (908); the upper surface of the table top (2) is fixedly connected to the x-displacement column (901); the side surface of the x-displacement column (901) is fixedly connected to the y-displacement column (902); and the lower surface of the y-displacement column (902) is fixedly connected to the A vertical push rod (903) is connected, the lower surface of the vertical push rod (903) is fixedly connected to a second mounting device (904), the lower surface of the second mounting device (904) is fixedly connected to a second mounting knife (905), one side surface of the second mounting device (904) is fixedly connected to a connecting block (906), one side surface of the connecting block (906) is fixedly connected to a welding push rod (907), and one side surface of the welding push rod (907) is fixedly connected to a welder (908).

9. The PCB automatic soldering equipment according to claim 8, characterized in that: The vertical push rod (903) can be freely moved and controlled on the x and y axes by setting the x displacement column (901) and the y displacement column (902), and two groups of the second mounting knives (905) are symmetrically arranged on the central axis of the second mounting device (904).

10. The PCB automatic soldering equipment according to claim 8, characterized in that: The welding push rod (907) and the welder (908) can rotate within a certain range around the second knife-closing rack (905) through the connecting block (906), and the top end of the welder (908) can contact the top end of the second knife-closing rack (905) through rotation.

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