SMT patch processing welding point peeling device

Abstract

The utility model discloses a kind of SMT patch processing welding point stripping devices, including base, the upper surface of the base is fixedly connected with fixed plate, the front surface of the fixed plate is fixedly connected with L-shaped fixed plate, the rear surface of the L-shaped fixed plate is fixedly connected with connecting plate, the inner surface of the L-shaped fixed plate is slidably connected with slide bar, the upper end of the slide bar is fixedly connected with pull block, the outer surface of the slide bar is provided with spring. By setting first motor, first screw, second motor, second screw, third motor and third screw and the like structure, the position of electric iron can be accurately controlled, so as to ensure that heating head can be aligned with the welding point that needs to remove welding, and the whole device reduces manual participation, so as to improve work efficiency, by setting air pipe, stock bin, suction box, suction pump, connecting pipe and filter screen, the melted welding point can be sucked away, and cooled and solidified in the water inside the suction box is collected, so as to facilitate the recycling of waste material.

Description

Technical Field

[0001] This utility model relates to the field of SMT (Surface Mount Technology) assembly technology, and in particular to an SMT solder joint stripping device. Background Technology

[0002] Surface Mount Technology (SMT) is an important component of modern electronic assembly technology and is widely used in the production of various electronic products. In the SMT process, components on a printed circuit board (PCB) are connected to pads via solder paste. After reflow soldering, solder joints are formed. If a solder joint is misplaced, it needs to be removed.

[0003] However, traditional solder joint removal methods still have certain drawbacks. For example, they usually require operators to remove solder joints using manual tools (such as soldering irons and tweezers), which involves complex procedures and a lot of manual intervention, leading to a decrease in work efficiency. Secondly, the removed solder joints cannot be effectively collected, resulting in a waste of resources and a lack of practicality. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an SMT solder joint stripping device that can precisely control the position of the soldering iron, thereby ensuring that the heating head can be aligned with the solder joint that needs to be desoldered. The entire device reduces manual intervention, thereby improving work efficiency. It can suck away the molten solder joint and cool and solidify it in the water inside the drawer for collection, thereby facilitating the recycling of waste materials.

[0005] This utility model also provides an SMT solder joint stripping device as described above, comprising:

[0006] A base has a fixed plate fixedly connected to its upper surface, an L-shaped fixed plate fixedly connected to the front surface of the fixed plate, a connecting plate fixedly connected to the rear surface of the L-shaped fixed plate, a sliding rod slidably connected to the inner surface of the L-shaped fixed plate, a pull block fixedly connected to the upper end of the sliding rod, a spring provided on the outer surface of the sliding rod, and a clamping plate fixedly connected to the lower end of the sliding rod. A first motor is fixedly connected to the right surface of the base, a first lead screw is fixedly connected to the output end of the first motor, a fixed frame is threadedly connected to the outer surface of the first lead screw, a second motor is fixedly connected to the upper surface of the fixed frame, a second lead screw is fixedly connected to the output end of the second motor, a connecting seat is threadedly connected to the outer surface of the second lead screw, a limit groove is provided on the outer surface of the connecting seat, a third motor is fixedly connected to the inner surface of the limit groove, a third lead screw is fixedly connected to the output end of the third motor, a slider is threadedly connected to the outer surface of the third lead screw, a fixed seat is fixedly connected to the upper surface of the slider, and a PLC controller is provided on the front surface of the base.

[0007] The lower surface of the fixing base is provided with a soldering iron, the outer surface of the fixing base is provided with a through groove, the inner surface of the through groove is fixedly connected with an air duct, one end of the air duct is fixedly connected with a material hopper, the inner surface of the material hopper is slidably connected with a drawer, the upper surface of the material hopper is fixedly connected with an exhaust pump, the input end of the exhaust pump is provided with a connecting pipe, and the inner surface of the connecting pipe is provided with a filter screen.

[0008] According to the SMT solder joint stripping device, the upper end of the spring is fixedly connected to the L-shaped fixing plate, and the lower end of the spring is fixedly connected to the clamping plate.

[0009] According to the aforementioned SMT solder joint stripping device, the outer surface of the first lead screw is rotatably connected to the base, and the first motor is electrically connected to the PLC controller.

[0010] According to the SMT solder joint stripping device, the outer surface of the second lead screw is rotatably connected to the fixed frame, and the second motor is electrically connected to the PLC controller.

[0011] According to the SMT solder joint stripping device, the outer surface of the third lead screw is rotatably connected to the connecting seat, and the third motor is electrically connected to the PLC controller.

[0012] According to the aforementioned SMT solder joint stripping device, the outer surface of the clamping plate is slidably connected to the L-shaped fixing plate, the outer surface of the fixing frame is slidably connected to the base, and the inner surface of the limiting groove is adapted to the slider.

[0013] According to the aforementioned SMT solder joint stripping device, the outer surface of the connecting tube is fixedly connected to the air duct.

[0014] According to the aforementioned SMT solder joint stripping device, the first motor, the second motor, the third motor, the soldering iron, the exhaust pump, and the PLC controller are all electrically connected to an external power supply.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up a structure with a first motor, a first lead screw, a second motor, a second lead screw, a third motor and a third lead screw, the position of the soldering iron can be precisely controlled, thereby ensuring that the heating head can be aligned with the solder joint that needs to be desoldered, and the whole device reduces manual intervention, thereby improving work efficiency.

[0017] 2. By setting up air ducts, silos, drawers, exhaust pumps, connecting pipes and filters, the molten weld points can be sucked away and cooled and solidified in the water inside the drawer for collection, thus facilitating the recycling of waste materials.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of an SMT solder joint stripping device according to the present invention.

[0021] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0022] Figure 3 This is a partial structural schematic diagram of an SMT solder joint stripping device according to the present invention.

[0023] Figure 4 This is a partial structural cross-sectional view of an SMT solder joint stripping device according to the present invention.

[0024] Legend:

[0025] 1. Base; 2. Fixing plate; 3. L-shaped fixing plate; 4. Connecting plate; 5. Slide rod; 6. Pull block; 7. Spring; 8. Clamping plate; 9. First motor; 10. First lead screw; 11. Fixing frame; 12. Second motor; 13. Second lead screw; 14. Connecting seat; 15. Limiting groove; 16. Third motor; 17. Third lead screw; 18. Slider; 19. Fixing seat; 20. Soldering iron; 21. Through groove; 22. Air duct; 23. Material bin; 24. Drawer box; 25. Exhaust pump; 26. Connecting pipe; 27. Filter screen; 28. PLC controller. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-4This utility model discloses an SMT solder joint stripping device, comprising: a base 1, a fixing plate 2 fixedly connected to the upper surface of the base 1, an L-shaped fixing plate 3 fixedly connected to the front surface of the fixing plate 2, a connecting plate 4 fixedly connected to the rear surface of the L-shaped fixing plate 3, a sliding rod 5 slidably connected to the inner surface of the L-shaped fixing plate 3, a pull block 6 fixedly connected to the upper end of the sliding rod 5, a spring 7 provided on the outer surface of the sliding rod 5, a clamping plate 8 fixedly connected to the lower end of the sliding rod 5, a first motor 9 fixedly connected to the right surface of the base 1, a first lead screw 10 fixedly connected to the output end of the first motor 9, a fixing frame 11 threadedly connected to the outer surface of the first lead screw 10, a second motor 12 fixedly connected to the upper surface of the fixing frame 11, a second lead screw 13 fixedly connected to the output end of the second motor 12, a connecting seat 14 threadedly connected to the outer surface of the second lead screw 13, a limit groove 15 provided on the outer surface of the connecting seat 14, a third motor 16 fixedly connected to the inner surface of the limit groove 15, and a fixed connection between the output end of the third motor 16 and the base 1. A third lead screw 17 is connected, and a slider 18 is threadedly connected to the outer surface of the third lead screw 17. A fixed seat 19 is fixedly connected to the upper surface of the slider 18. A PLC controller 28 is set on the front surface of the base 1. The PLC controller 28 is an existing technology component, so it will not be described in detail. The upper end of the spring 7 is fixedly connected to the L-shaped fixed plate 3, and the lower end of the spring 7 is fixedly connected to the clamping plate 8. The outer surface of the first lead screw 10 is rotatably connected to the base 1. The first motor 9 is electrically connected to the PLC controller 28. The outer surface of the second lead screw 13 is rotatably connected to the fixed frame 11. The second motor 12 is electrically connected to the PLC controller 28. The outer surface of the third lead screw 17 is rotatably connected to the connecting seat 14. The third motor 16 is electrically connected to the PLC controller 28. The outer surface of the clamping plate 8 is slidably connected to the L-shaped fixed plate 3. The outer surface of the fixed frame 11 is slidably connected to the base 1. The inner surface of the limiting groove 15 is adapted to the slider 18. The first motor 9, the second motor 12, and the third motor 16 are all electrically connected to an external power supply.

[0028] A soldering iron 20 is provided on the lower surface of the fixed base 19. A through groove 21 is provided on the outer surface of the fixed base 19. An air duct 22 is fixedly connected to the inner surface of the through groove 21. A material hopper 23 is fixedly connected to one end of the air duct 22. A drawer box 24 is slidably connected to the inner surface of the material hopper 23. An exhaust pump 25 is fixedly connected to the upper surface of the material hopper 23. A connecting pipe 26 is provided at the input end of the exhaust pump 25. A filter screen 27 is provided on the inner surface of the connecting pipe 26. The filter screen 27 can prevent solder waste from being sucked into the interior of the exhaust pump. The outer surface of the connecting pipe 26 is fixedly connected to the air duct 22. The soldering iron 20, the exhaust pump 25, and the PLC controller 28 are all electrically connected to an external power supply.

[0029] Working principle: In use, pull block 6 drives slide bar 5 to move clamping plate 8 upward, compressing spring 7. Then, place the PCB board between connecting plate 4 and clamping plate 8. Release pull block 6, and under the rebound force of spring 7, connecting plate 4 and clamping plate 8 will clamp and fix the PCB board. Then, start soldering iron 20 and exhaust pump 25, and start first motor 9, second motor 12 and third motor 16 through PLC controller 28. Under the action of first motor 9, first lead screw 10 drives soldering iron 20 to move to the PCB board. Above the solder joint to be peeled on the PCB, the third motor 16 drives the third lead screw 17 to move the soldering iron 20 to directly above the solder joint to be peeled on the PCB through the slider 18. Then, under the action of the second motor 12, the second lead screw 13 drives the soldering iron 20 to move downward to contact the solder joint to be peeled on the PCB, thereby precisely melting the solder joint at high temperature. Under the action of the exhaust pump 25, the melted solder joint is sucked away through the connecting pipe 26 and the air duct 22, and then sent into the water inside the drawer 24 for cooling, solidification and collection for recycling.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A solder joint stripping device for SMT (Surface Mount Technology) assembly, characterized in that, include: A base (1) is provided with a fixed plate (2) fixedly connected to its upper surface. An L-shaped fixed plate (3) is fixedly connected to the front surface of the fixed plate (2). A connecting plate (4) is fixedly connected to the rear surface of the L-shaped fixed plate (3). A slide rod (5) is slidably connected to the inner surface of the L-shaped fixed plate (3). A pull block (6) is fixedly connected to the upper end of the slide rod (5). A spring (7) is provided on the outer surface of the slide rod (5). A clamping plate (8) is fixedly connected to the lower end of the slide rod (5). A first motor (9) is fixedly connected to the right surface of the base (1). A first lead screw (10) is fixedly connected to the output end of the first motor (9). A fixing frame is threadedly connected to the outer surface of the first lead screw (10). (11) A second motor (12) is fixedly connected to the upper surface of the fixed frame (11). A second lead screw (13) is fixedly connected to the output end of the second motor (12). A connecting seat (14) is threadedly connected to the outer surface of the second lead screw (13). A limit groove (15) is provided on the outer surface of the connecting seat (14). A third motor (16) is fixedly connected to the inner surface of the limit groove (15). A third lead screw (17) is fixedly connected to the output end of the third motor (16). A slider (18) is threadedly connected to the outer surface of the third lead screw (17). A fixed seat (19) is fixedly connected to the upper surface of the slider (18). A PLC controller (28) is provided on the front surface of the base (1). The lower surface of the fixed base (19) is provided with a soldering iron (20), the outer surface of the fixed base (19) is provided with a through groove (21), the inner surface of the through groove (21) is fixedly connected with an air duct (22), one end of the air duct (22) is fixedly connected with a hopper (23), the inner surface of the hopper (23) is slidably connected with a drawer (24), the upper surface of the hopper (23) is fixedly connected with an exhaust pump (25), the input end of the exhaust pump (25) is provided with a connecting pipe (26), and the inner surface of the connecting pipe (26) is provided with a filter screen (27).

2. The SMT solder joint stripping device according to claim 1, characterized in that, The upper end of the spring (7) is fixedly connected to the L-shaped fixing plate (3), and the lower end of the spring (7) is fixedly connected to the clamping plate (8).

3. The SMT solder joint stripping device according to claim 1, characterized in that, The outer surface of the first lead screw (10) is rotatably connected to the base (1), and the first motor (9) is electrically connected to the PLC controller (28).

4. The SMT solder joint stripping device according to claim 1, characterized in that, The outer surface of the second lead screw (13) is rotatably connected to the fixed frame (11), and the second motor (12) is electrically connected to the PLC controller (28).

5. The SMT solder joint stripping device according to claim 1, characterized in that, The outer surface of the third lead screw (17) is rotatably connected to the connecting seat (14), and the third motor (16) is electrically connected to the PLC controller (28).

6. The SMT solder joint stripping device according to claim 1, characterized in that, The outer surface of the clamping plate (8) is slidably connected to the L-shaped fixing plate (3), the outer surface of the fixing frame (11) is slidably connected to the base (1), and the inner surface of the limiting groove (15) is adapted to the slider (18).

7. The SMT solder joint stripping device according to claim 1, characterized in that, The outer surface of the connecting pipe (26) is fixedly connected to the air duct (22).

8. The SMT solder joint stripping device according to claim 1, characterized in that, The first motor (9), the second motor (12), the third motor (16), the soldering iron (20), the exhaust pump (25), and the PLC controller (28) are all electrically connected to an external power supply.

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