Cleaning device used after SMT (Surface Mount Technology) welding process

Abstract

The utility model relates to the technical field of circuit board cleaning, and discloses a cleaning device used after an SMT (Surface Mount Technology) patch welding process, which comprises a box body, cleaning liquid is arranged in the box body, and the cleaning device is arranged in the box body and comprises a cleaning part. According to the cleaning device used after the SMT welding process, by arranging a partition plate, an ultrasonic generator, a filter screen, a water pump, a U-shaped pipe, a spray head, an air pump, a connecting pipe and an air bellow, a circuit board is sunk into cleaning liquid, the ultrasonic generator is started, the outer surface of the circuit board is cleaned, the circuit board is controlled to move upwards, and the water pump is started; the filtered cleaning liquid is sprayed on the outer surface of the circuit board, the cleaned circuit board is washed, an air pump is started, air is blown to the outer surface of the circuit board, and the outer surface of the circuit board is air-dried; a hydraulic rod and a motor are arranged, the hydraulic rod is used for controlling the circuit board to move up and down, the motor is started, the cleaning efficiency of the device is improved, and the circuit board can be dewatered.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board cleaning, in particular to a cleaning device used after an SMT patch welding process. Background Art

[0002] SMT soldering is an electronic assembly technology that involves precisely placing small components on the surface of a printed circuit board and soldering them in place.

[0003] A Chinese patent discloses a circuit board cleaning device, with the publication number CN214718782U, comprising a cleaning box, a sealing door rotatably connected to one side of the cleaning box, a fixed plate slidably connected inside the cleaning box, a plurality of fixed clamps distributed and fixed on the upper end of the fixed plate, a plurality of strip-shaped through holes opened inside the fixed plate, a spray pipe fixed on the top of the cleaning box, a plurality of nozzles distributed and fixed on the lower end of the spray pipe, and a reflux guide groove fixed on the bottom end of the cleaning box. The utility model, through the design of the cleaning structure, enables the device to automatically flush and clean the circuit board, flush away the dirt on its surface, reduce the use of human resources, and improve the cleaning efficiency. Through the design of the water circulation structure, the water of the device can be recycled, and the cleaned stains can be intercepted and filtered, so that the cleaning water can be circulated multiple times, improving the use of water resources and reducing economic waste.

[0004] However, the following disadvantages are still included: the device uses a water pump to flush the outer surface of the circuit board with water, but after the device flushes, there is water on the outer surface of the circuit board, and the device fails to dry the circuit board after the cleaning. Therefore, we propose a cleaning device for SMT patch welding process to solve this problem. Utility Model Content

[0005] The utility model aims to provide a cleaning device for SMT patch welding process to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cleaning device for use after an SMT patch welding process, comprising a box body, a cleaning liquid is arranged inside the box body, a cleaning device is arranged inside the box body, and the cleaning device comprises a cleaning part;

[0007] The cleaning part includes an ultrasonic generator, a water pump, an air pump and a bellows, the bottom surface of the ultrasonic generator is fixedly connected to the inner wall of the box, the right end surface of the water pump is fixedly connected to the left end surface of the box, the bottom surface of the air pump is fixedly connected to the top surface of the box, the right end surface of the water inlet pipe of the water pump is connected to the left end surface of the box and is connected to the inside of the box, and the outer surface of the bellows is fixedly connected to the inner wall of the box;

[0008] A mounting portion is provided inside the box;

[0009] The mounting portion comprises a clamping plate and a sliding rod, the top surface of the lower clamping plate is fixedly connected to the bottom surface of the sliding rod, and the outer surface of the top end of the sliding rod slides through the bottom surface of the upper clamping plate and extends to the top of the upper clamping plate.

[0010] A further improvement is that the cleaning part also includes a partition, a filter, a U-shaped tube, a nozzle and a connecting pipe. The outer surface of the partition and the outer surface of the filter are fixedly connected to the inner wall of the box. By arranging an ultrasonic cleaner, a partition and a filter, it is convenient to clean the circuit board.

[0011] A further improvement is that the outer surface of the right end of the U-shaped tube is fixedly connected through the left end surface of the box body and extends to the inside of the box body, the outer surface of the nozzle is fixedly connected to the outer surface of the U-shaped tube, and the top surface of the water pump outlet pipe is fixedly connected to the bottom surface of the U-shaped tube. By arranging a water pump, a U-shaped tube and a nozzle, the outer surface of the circuit board is flushed in the process of moving the circuit board from the inside of the cleaning liquid to the top of the cleaning liquid.

[0012] A further improvement is that the outer surface of the connecting pipe is fixedly connected through the outer surface of the box body and the outer surface of the bellows in sequence and is connected to the inside of the bellows. The right end face of the air pump outlet pipe is fixedly connected to the outer surface of the connecting pipe. By arranging the air pump, connecting pipe and bellows, it is convenient to air dry the circuit board.

[0013] A further improvement is that the mounting part also includes a hydraulic rod, a motor, a T-shaped slider, a mounting plate, a spring, a limit piece and a screw. The outer surface of the bottom end of the limit piece slides through the top surface of the mounting plate and the top surface of the upper clamping plate in sequence. The upper and lower ends of the spring are fixedly connected to the inner wall of the limit piece and the bottom surface of the mounting plate respectively. The outer surface of the top end of the hydraulic rod is fixedly passed through the inner wall of the box and extends to the top of the box. The bottom surface of the hydraulic rod output rod is fixedly connected to the top surface of the motor. By arranging the hydraulic rod and the motor, it is convenient to control the up and down movement of the circuit board and to shake off water on the circuit board at the same time.

[0014] A further improvement is that the bottom surface of the motor output shaft is fixedly connected to the top surface of the mounting plate, a T-shaped groove is provided on the bottom surface of the mounting plate, the outer surface of the top end of the T-shaped slider extends into the interior of the T-shaped groove and is slidingly connected to the inner wall of the T-shaped groove, and the bottom surface of the T-shaped slider is fixedly connected to the top surface of the upper clamping plate. By setting the mounting plate and the T-shaped slider, it is convenient to pull the circuit board to the right, thereby facilitating the installation and removal of the circuit board.

[0015] A further improvement is that the bottom surface of the screw is connected to the top surface of the lower clamping plate through a bearing seat, and the outer surface thread of the top end of the screw passes through the bottom surface of the upper clamping plate and extends to the top of the upper clamping plate. By setting a screw, a sliding rod and a clamping plate, the screw is rotated so that the two clamping plates clamp the circuit board.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the cleaning device used after the SMT patch welding process, by arranging a partition, an ultrasonic generator, a filter, a water pump, a U-shaped tube, a nozzle, an air pump, a connecting tube and a bellows, sinks the circuit board into the cleaning liquid, starts the ultrasonic generator, cleans the outer surface of the circuit board, controls the circuit board to move upward, starts the water pump, sprays the filtered cleaning liquid on the outer surface of the circuit board, rinses the cleaned circuit board, starts the air pump, blows the wind on the outer surface of the circuit board, and dries the outer surface of the circuit board; by arranging a hydraulic rod and a motor, the hydraulic rod is used to control the circuit board to move up and down, starts the motor, speeds up the cleaning efficiency of the device, and also dehydrates the circuit board; by arranging a clamping plate, a T-shaped slider, a mounting plate, a spring, a limiter, a slide rod and a screw, the screw is rotated so that the two clamping plates clamp the circuit board, the limiter is pulled upward, and the clamping plate and the circuit board are pulled to the right, so that the circuit board is easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front sectional view of the overall structure of the utility model;

[0019] Figure 3 It is a right side cross-sectional view of the overall structure of the utility model;

[0020] Figure 4 It is a partial cross-sectional view of the three-dimensional structure of the cleaning device of the utility model;

[0021] Figure 5 for Figure 4 A magnified view of the structure in the middle.

[0022] In the figure: 1 box body, 2 cleaning device, 21 mounting part, 22 cleaning part, 211 hydraulic rod, 212 motor, 213 clamping plate, 214 T-type slider, 215 mounting plate, 216 spring, 217 limiter, 218 slide bar, 219 screw rod, 221 partition plate, 222 ultrasonic generator, 223 filter screen, 224 water pump, 225 U-type pipe, 226 nozzle, 227 air pump, 228 connecting pipe, 229 bellows. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 , the utility model provides a technical solution: a cleaning device used after the SMT patch welding process, comprising a box body 1, a cleaning liquid is arranged inside the box body 1, a cleaning device 2 is arranged inside the box body 1, and the cleaning device 2 includes a cleaning part 22;

[0025] The cleaning part 22 includes an ultrasonic generator 222, a water pump 224, an air pump 227 and a bellows 229. The bottom surface of the ultrasonic generator 222 is fixedly connected to the inner wall of the box body 1, the right end surface of the water pump 224 is fixedly connected to the left end surface of the box body 1, the bottom surface of the air pump 227 is fixedly connected to the top surface of the box body 1, the right end surface of the water inlet pipe of the water pump 224 is connected to the left end surface of the box body 1 and is connected to the inside of the box body 1, and the outer surface of the bellows 229 is fixedly connected to the inner wall of the box body 1. The cleaning part 22 also includes a partition 221, a filter screen 223, a U-shaped tube 225, a nozzle 226 and a connecting pipe 228;

[0026] The outer surfaces of the partition 221 and the filter screen 223 are fixedly connected to the inner wall of the box body 1, the outer surface of the right end of the U-shaped tube 225 is fixedly penetrated through the left end surface of the box body 1 and extends to the inside of the box body 1, the outer surface of the nozzle 226 is fixedly connected to the outer surface of the U-shaped tube 225, the top surface of the water outlet pipe of the water pump 224 is fixedly connected to the bottom surface of the U-shaped tube 225, and the outer surface of the connecting pipe 228 is fixedly penetrated through the outer surface of the box body 1 and the outer surface of the bellows 229 in turn and connected to the inside of the bellows 229;

[0027] The right end surface of the air outlet pipe of the air pump 227 is fixedly connected with the outer surface of the connecting pipe 228. By setting the partition 221, the ultrasonic generator 222, the filter 223, the water pump 224, the U-shaped tube 225, the nozzle 226, the air pump 227, the connecting pipe 228 and the bellows 229, the circuit board is sunk into the cleaning liquid, the ultrasonic generator 222 is started to clean the outer surface of the circuit board, the circuit board is controlled to move upward, the water pump 224 is started to spray the filtered cleaning liquid on the outer surface of the circuit board to rinse the cleaned circuit board, and the air pump 227 is started to blow the wind on the outer surface of the circuit board to air dry the outer surface of the circuit board;

[0028] A mounting portion 21 is provided inside the box body 1;

[0029] The mounting portion 21 includes a clamping plate 213 and a sliding rod 218. The top surface of the lower clamping plate 213 is fixedly connected to the bottom surface of the sliding rod 218. The outer surface of the top end of the sliding rod 218 slides through the bottom surface of the upper clamping plate 213 and extends to the top of the upper clamping plate 213. The mounting portion 21 also includes a hydraulic rod 211, a motor 212, a T-shaped slider 214, a mounting plate 215, a spring 216, a stopper 217 and a screw 219.

[0030] The outer surface of the bottom end of the limiter 217 slides through the top surface of the mounting plate 215 and the top surface of the upper clamping plate 213 in sequence, the upper and lower ends of the spring 216 are fixedly connected to the inner wall of the limiter 217 and the bottom surface of the mounting plate 215 respectively, the outer surface of the top end of the hydraulic rod 211 is fixedly passed through the inner wall of the box body 1 and extends to the top of the box body 1, and the bottom surface of the output rod of the hydraulic rod 211 is fixedly connected to the top surface of the motor 212. By setting the hydraulic rod 211 and the motor 212, the hydraulic rod 211 is used to control the circuit board to move up and down, and the motor 212 is started to speed up the cleaning efficiency of the device, and the circuit board can also be dehydrated;

[0031] The bottom surface of the screw 219 is connected to the top surface of the lower clamping plate 213 through the bearing seat, the outer surface of the top end of the screw 219 passes through the bottom surface of the upper clamping plate 213 and extends to the top of the upper clamping plate 213, the bottom surface of the output shaft of the motor 212 is fixedly connected to the top surface of the mounting plate 215, the bottom surface of the mounting plate 215 is provided with a T-shaped groove, and the outer surface of the top end of the T-shaped slider 214 extends to the inside of the T-shaped groove and is slidably connected to the inner wall of the T-shaped groove;

[0032] The bottom surface of the T-shaped slider 214 is fixedly connected to the top surface of the upper clamping plate 213. By setting the clamping plate 213, T-shaped slider 214, mounting plate 215, spring 216, limit piece 217, slide bar 218 and screw 219, the screw 219 is rotated to make the two clamping plates 213 clamp the circuit board, pull the limit piece 217 upwards, and then pull the clamping plate 213 and the circuit board to the right, so as to facilitate the replacement of the circuit board.

[0033] When in use, start the ultrasonic generator 222 to clean the circuit board in the cleaning liquid. After cleaning, control the hydraulic rod 211 to shorten, the hydraulic rod 211 drives the circuit board to move upward, start the water pump 224, the water pump 224 extracts the cleaning liquid under the filter 223 and sprays it from the nozzle 226, the water body rinses the circuit board, turn off the water pump 224, start the motor 212, the output shaft of the motor 212 drives the mounting plate 215 and the circuit board to rotate, and the circuit board is shaken off. Turn off the motor 212, then control the hydraulic rod 211 to shorten, start the air pump 227, the gas passes through the air pump 227, the connecting pipe 228 and the bellows 229, and finally sprays out from the inside of the bellows 229 to air-dry the circuit board, pull the limiter 217 upward so that the limiter 217 no longer presses the upper clamping plate 213, pull the clamping plate 213 and the circuit board to the right, rotate the screw 219 to move the lower clamping plate 213 downward, and the circuit board can be removed and replaced.

[0034] Although the 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 cleaning device for use after an SMT patch welding process, comprising a box (1), characterized in that: A cleaning liquid is provided inside the box (1), a cleaning device (2) is provided inside the box (1), and the cleaning device (2) comprises a cleaning portion (22); The cleaning portion (22) comprises an ultrasonic generator (222), a water pump (224), an air pump (227) and a bellows (229); the bottom surface of the ultrasonic generator (222) is fixedly connected to the inner wall of the box (1); the right end surface of the water pump (224) is fixedly connected to the left end surface of the box (1); the bottom surface of the air pump (227) is fixedly connected to the top surface of the box (1); the right end surface of the water inlet pipe of the water pump (224) is connected to the left end surface of the box (1) and is in continuous connection with the interior of the box (1); and the outer surface of the bellows (229) is fixedly connected to the inner wall of the box (1); A mounting portion (21) is provided inside the box (1); The mounting portion (21) comprises a clamping plate (213) and a sliding rod (218), wherein the top surface of the lower clamping plate (213) is fixedly connected to the bottom surface of the sliding rod (218), and the top outer surface of the sliding rod (218) slides through the bottom surface of the upper clamping plate (213) and extends above the upper clamping plate (213).

2. The cleaning device for use after the SMT patch welding process according to claim 1 is characterized in that: The cleaning portion (22) further comprises a partition (221), a filter screen (223), a U-shaped tube (225), a nozzle (226) and a connecting tube (228); the outer surface of the partition (221) and the outer surface of the filter screen (223) are both fixedly connected to the inner wall of the box body (1).

3. The cleaning device for use after the SMT patch welding process according to claim 2, characterized in that: The outer surface of the right end of the U-shaped tube (225) is fixedly connected to the left end surface of the box body (1) and extends into the interior of the box body (1); the outer surface of the nozzle (226) is fixedly connected to the outer surface of the U-shaped tube (225); and the top surface of the water outlet pipe of the water pump (224) is fixedly connected to the bottom surface of the U-shaped tube (225).

4. The cleaning device for use after the SMT patch welding process according to claim 2, characterized in that: The outer surface of the connecting pipe (228) is fixedly connected through the outer surface of the box body (1) and the outer surface of the bellows (229) in sequence and is connected to the inside of the bellows (229). The right end surface of the air outlet pipe of the air pump (227) is fixedly connected to the outer surface of the connecting pipe (228).

5. The cleaning device for use after SMT patch welding process according to claim 1, characterized in that: The mounting portion (21) further comprises a hydraulic rod (211), a motor (212), a T-shaped slider (214), a mounting plate (215), a spring (216), a stopper (217) and a screw (219); the outer surface of the bottom end of the stopper (217) sequentially slides through the top surface of the mounting plate (215) and the top surface of the upper clamping plate (213); the upper and lower ends of the spring (216) are respectively fixedly connected to the inner wall of the stopper (217) and the bottom surface of the mounting plate (215); the outer surface of the top end of the hydraulic rod (211) is fixedly connected to the inner wall of the box body (1) and extends to the top of the box body (1); and the bottom surface of the output rod of the hydraulic rod (211) is fixedly connected to the top surface of the motor (212).

6. The cleaning device for use after the SMT patch welding process according to claim 5, characterized in that: The bottom surface of the output shaft of the motor (212) is fixedly connected to the top surface of the mounting plate (215); a T-shaped slot is provided on the bottom surface of the mounting plate (215); the top outer surface of the T-shaped slider (214) extends into the interior of the T-shaped slot and is slidably connected to the inner wall of the T-shaped slot; the bottom surface of the T-shaped slider (214) is fixedly connected to the top surface of the upper clamping plate (213).

7. The cleaning device for use after SMT patch welding process according to claim 5, characterized in that: The bottom surface of the screw rod (219) is rotatably connected to the top surface of the lower clamping plate (213) via a bearing seat, and the outer surface of the top end of the screw rod (219) has a thread that penetrates the bottom surface of the upper clamping plate (213) and extends to the top of the upper clamping plate (213).

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