An intelligent solder surface cleaning device that saves board washing water

Abstract

The present invention discloses an intelligent solder surface cleaning device that saves board washing water. The cleaning device is composed of a frame, a precise loading mobile platform, a fast line change grabbing mechanism, an X-axis moving module, a board washing water saving spray device, a dry cleaning brush mechanism, an anti-static material feeding conveyor line, a dirt storage device, a ventilation and exhaust system, a human-machine operation interface, and a pressurized tank assembly. The present invention utilizes a precise loading mobile platform, a fast line change grabbing mechanism, an X-axis moving module, a board washing water saving spray device, a dry cleaning brush mechanism, an anti-static material feeding conveyor line, a dirt storage device, and a ventilation and exhaust system. It integrates everything from taking and putting to cleaning, replaces manual labor, has a high degree of automation, and works continuously and stably.

Description

Technical Field

[0001] The invention relates to the technical field related to solder, and in particular to a solder surface cleaning device capable of intelligently saving board washing water. Background Art

[0002] With the development of the electronics industry, many companies at home and abroad have adopted wave soldering and reflow soldering technology and equipment, which not only improves production efficiency, but also improves welding quality. However, due to the existence of various pollution factors, the corrosion and short circuit of printed circuit board rails and components have seriously affected the reliability of printed circuit boards. Therefore, it is necessary to strictly clean printed circuit boards (PCBs) and printed circuit components (PCAs), especially military products. Traditional PCB board washing is generally operated by hand. Manual PCB board washing has the disadvantages of low washing efficiency, incomplete PCB board washing, poor washing effect, high labor intensity of workers and high labor costs of enterprises. Another method is to use a transmission cleaning device, which uses a brush immersed in a liquid storage tank, drives the washing water when rotating, and then uses the brush to roll the PCB board for cleaning, but this wastes the cleaning liquid, easily causes production waste, and the production cost is very high;

[0003] There are two patents in the prior art: Patent No. "201611032123.9", Patent Name "A PCB Washing Mechanism with Automatic Material Pickup and Transfer" and Patent No. "2018108891750", Patent Name "A Fully Automatic Intelligent Board Washing Machine"

[0004] Among them, for the patent number "201611032123.9", the patent name "A PCB washing mechanism capable of automatically picking up and transferring materials", this mechanism uses a cylindrical brush group or a long tube brush group to wet-brush the PCB board. It cannot automatically adjust the liquid level of the washing water tank, resulting in its brushing function needing to be further provided and further expanded, which wastes washing water and has a high production cost.

[0005] Regarding the patent number "2018108891750", the patent name is "A fully automatic intelligent board brushing machine". First, a wet brush is used to apply cleaning liquid to the PCB. The brush is immersed in the board washing water. After a long time, the board washing water is easy to get dirty, resulting in waste of board washing water. Second, when taking and placing the PCB, the left and right clamping method is used, which is difficult to change the product line. Summary of the invention

[0006] The purpose of the present invention is to provide a solder surface cleaning device that can intelligently save board washing water, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent solder surface cleaning device that saves board washing water, the cleaning device consists of a frame, a precise loading mobile platform, a quick line changing grabbing mechanism, an X-axis moving module, a board washing water saving spray device, a dry cleaning brush mechanism, an anti-static unloading conveyor line, a dirt storage device, a ventilation and exhaust system, a human-machine operation interface, and a pressurized tank assembly. The frame is provided with a pressurized tank, a human-machine operation interface, a precise loading mobile platform, a quick line changing grabbing mechanism, an X-axis moving module, a board washing water saving spray device, a dry cleaning brush mechanism, an anti-static unloading conveyor line, and a dirt storage device below the dry cleaning brush mechanism from right to left.

[0008] Preferably, the precise feeding mobile platform is composed of a fixture positioning plate, a guide rail base, a rodless cylinder, a photoelectric projection, an in-position photoelectric projection, a buffer, a mounting base plate, and a linear guide rail. The guide rail base, the rodless cylinder, the buffer, the photoelectric projection, and the in-position photoelectric projection are fixed on the mounting base, and a linear guide rail is fixed on the guide rail base, and a fixture positioning plate is fixed on the top.

[0009] Preferably, the quick line-changing grasping mechanism comprises a welded square tube, an X-axis mounting plate is fixed above the welded square tube, the X-axis mounting plate is fixed with an X-axis module, a linear guide rail, a fixed seat is fixed to the X-axis module and the linear guide rail, a servo motor mounting plate is fixed to the fixed seat, the servo motor mounting plate carries a ball screw, a servo motor, a pressure sensor and a guide shaft, an adsorption carrier plate is installed on the guide shaft, and a vacuum generator, a positioning guide shaft assembly, a positioning pressure rod assembly, a vacuum suction cup assembly and a four-axis water baffle are fixed on the adsorption carrier plate.

[0010] Preferably, the plate-washing water-saving spray device comprises a lower base plate, and above the lower base plate are fixed side plates, a liquid storage tank, an adjustment block, an adjustment cylinder, an atomizing spray gun A, an atomizing spray gun B, an atomizing spray gun C, and a photoelectric sensor.

[0011] Preferably, the dry cleaning brush mechanism includes a bottom mounting plate, left and right side plates are fixed above the bottom mounting plate, an end rotating shaft and a synchronous wheel rotating shaft are installed inside the upper part, a sisal roller brush is installed in the middle, a servo motor A and a servo motor B are installed on the side, and a synchronous belt drive assembly is installed above the servo motor A and the servo motor B.

[0012] Preferably, the anti-static unloading conveyor line is fixed to the left end of the frame by an L-shaped mounting piece arranged thereon, and the L-shaped mounting piece is installed on the left and right profiles. A motor mounting plate is installed on one side of the left and right profiles, and a debugging motor, a main sprocket, a chain and a driven sprocket are installed on the motor mounting plate. An anti-static conveyor belt is arranged for transmission between the left and right profiles.

[0013] Compared with the prior art, the invention has the following advantages:

[0014] 1. The present invention can realize automation, improve production efficiency, save plate washing water, shorten the time of changing product lines, and provide the advantages of overall production efficiency and reduced production costs.

[0015] 2. The present invention utilizes precise loading mobile platform, fast line change grabbing mechanism, X-axis moving module, water-saving plate washing spray device, dry cleaning brush mechanism, anti-static unloading conveyor line, dirt storage device, and ventilation and exhaust system. It integrates everything from loading and unloading to cleaning, replaces manual labor, has a high degree of automation, and works continuously and stably.

[0016] 3. The product straight pass rate (FPY) of the present invention is greater than 99%, the maximum output per hour (UPH) is greater than or equal to 220Pcs, the line change time can be completed within 10min, the single board cleaning CT is less than or equal to 16S, and the board washing water can be saved by half under the premise of the existing same output. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a structural schematic diagram of the precise feeding mobile platform of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the quick line-changing grabbing mechanism and the X-axis moving module of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the spray device for saving plate washing water of the present invention;

[0021] Figure 5 This is a schematic diagram of the dry cleaning brush mechanism of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the anti-static material feeding conveyor line of the present invention.

[0023] In the figure: frame 201, precise loading mobile platform 1, fast line change grabbing mechanism 2, X-axis moving module 3, water-saving spray device for washing plate 4, dry cleaning brush mechanism 5, anti-static unloading conveyor line 6, dirt storage device 7, ventilation and exhaust system 8, human-machine operation interface 9, pressurized tank 10, X-axis module 11, X-axis mounting plate 110, fixed seat 111, positioning pressure rod assembly 112, vacuum suction cup assembly 113, servo motor 114, servo Motor mounting plate 115, guide shaft 116, four-axis water baffle 117, ball screw 12, pressure sensor 13, vacuum generator 14, adsorption carrier 15, positioning guide shaft assembly 17, linear guide 18, welding square tube 19, fixture positioning plate 20, guide rail base 21, rodless cylinder 22, photoelectric 23, in-position photoelectric 24, buffer 25, installation base plate 26, linear guide 27, lower base plate 30, side plate 31, atomizing spray gun A 32, atomizing spray gun B 33, atomizing spray gun C 34, photoelectric sensor 35, adjustment block 36, liquid storage tank 37, adjustment cylinder 38, servo motor A 40, synchronous belt drive assembly 41, servo motor B 42, bottom mounting plate 43, left and right side plates 44, end rotating shaft 45, sisal roller brush 46, synchronous wheel rotating shaft 47, left and right profiles 50, anti-static conveyor belt 52, L-shaped mounting piece 51, motor mounting plate 53, main sprocket 54, debugging motor 55, chain 56, driven sprocket 57. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-6 , the present invention provides a technical solution:

[0026] The invention discloses an intelligent solder surface cleaning device which can save washing water for a board, comprising a frame 201, a precise loading mobile platform 1, a quick line changing grabbing mechanism 2, an X-axis moving module 3, a board washing water saving spraying device 4, a dry cleaning brush mechanism 5, an anti-static unloading conveying line 6, a dirt collecting device 7, a ventilation and exhaust system 8, a human-machine operation interface 9, a pressurizing tank 10 and other components. From right to left, a pressurizing tank, a human-machine operation interface, a precise loading mobile platform, a quick line changing grabbing mechanism, an X-axis moving module, a board washing water saving spraying device, a dry cleaning brush mechanism, an anti-static unloading conveying line and a dirt collecting device below the dry cleaning brush mechanism are arranged on the frame.

[0027] The main working process is to manually place the PCB board into the board loading position in the precise loading mobile platform 1, and use the rodless cylinder 22 to drive the PCB board from the loading position to the equipment grabbing position.

[0028] The quick line change grabbing mechanism 2 uses the Z axis to move up and down, adsorbs the PCB board and lifts it to a suitable height, and uses the lateral movement function of the X axis moving module 3 to move the quick line change grabbing mechanism 2 and the product PCB board to the top of the board washing water saving spray device 4. After the photoelectric sensing detects the rear PCB board, the spray gun in the pressurized tank 10 is pressurized, and the spray gun in the board washing water saving spray device 4 will spray the board washing water to the bottom surface of the PCB board. The spraying range and amount can be automatically adjusted. After the spraying is completed, the lateral movement function of the X axis moving module 3 is used to move the quick line change grabbing mechanism 2 and the product PCB board to the top of the dry cleaning brush mechanism 5, and the Z axis up and down movement function is used to move the sprayed surface of the PCB board down close to the rotating sisal roller brush and attach it to it, and the lateral movement function of the X axis moving module 3 is used to move left and right for 1-2 rounds to complete the washing action. The lateral movement function of the X-axis moving module 3 is used to move the quick line change grabbing mechanism 2 and the product PCB board above the anti-static unloading conveyor line 6, and then the PCB board product is placed on the anti-static unloading conveyor line 6 and flows into the next process.

[0029] The whole process can be completed within 16 seconds. The washing water is sprayed when it senses the presence of material and stops when it senses the absence of material. It is stored in a sealed pressurized container, which effectively controls the maximum use of washing water, thus avoiding waste and improving production efficiency.

[0030] The precise feeding mobile platform 1 is composed of a fixture positioning plate 20, a guide rail base 21, a rodless cylinder 22, a photoelectric detector 23, an in-position photoelectric detector 24, a buffer 25, a mounting base 26, and a linear guide 27. The guide rail base 21, the rodless cylinder 22, the buffer 25, the photoelectric detector 23, and the in-position photoelectric detector 24 are fixed on the mounting base 26. The linear guide 27 is fixed on the guide rail base 21, and the fixture positioning plate 20 is fixed on the top. The rodless cylinder 22 is used as the driving force to drive the fixture base 20 to move forward and backward, and the buffer 25 is used for buffering positioning to deliver the product from the manual feeding position to the equipment grabbing feeding position.

[0031] The quick line-changing grasping mechanism 2 includes a welding square tube 19, on which an X-axis mounting plate 110 is fixed, on which an X-axis module 11 and a linear guide 18 are fixed, a fixed seat 111 is fixed to the X-axis module 11 and the linear guide 18, a servo motor mounting plate 115 is fixed to the fixed seat 111, and the servo motor mounting plate 115 carries a ball screw 12, a servo motor 114, a pressure sensor 13 and a guide shaft 116, on which an adsorption carrier plate 15 is installed, on which a vacuum generator 14, a positioning guide shaft assembly 17, a positioning pressure rod assembly 112, a vacuum suction cup assembly 113 and a four-axis water baffle 117 are fixed, and the main function of this part is to adsorb the PCB board, and adjust the positioning guide shaft assembly 17, the positioning pressure rod assembly 112 and the vacuum suction cup assembly 113 to meet the needs of quick product line replacement.

[0032] The spray device 4 for saving washing water includes a lower bottom plate 30, a fixed side plate 31 above the lower bottom plate 30, a liquid storage tank 37, an adjustment block 36, an adjustment cylinder 38, an atomizing spray gun A 32, an atomizing spray gun B 33, an atomizing spray gun C 34, and a photoelectric sensor 35. Its main control function is that when a PCB board passes above, the photoelectric sensor senses the PCB board, and the atomizing spray gun sprays according to the size of the set product to reduce the waste of washing water.

[0033] The dry cleaning brush mechanism 5 includes a bottom mounting plate 43, left and right side plates 44 are fixed above the bottom mounting plate 43, a terminal rotating shaft 45 and a synchronous wheel rotating shaft 47 are installed inside the upper part, a sisal roller brush 46 is installed in the middle, a servo motor A 40 and a servo motor B 42 are installed on the side, and a synchronous belt transmission assembly 41 is installed above the servo motor A 40 and the servo motor B 42. The synchronous belt transmission assembly 41 is connected and driven to drive the sisal roller brush 46 to rotate, and the PCB board sprayed with cleaning liquid moves left and right on it to remove solder and debris, thereby achieving the cleaning function.

[0034] The anti-static unloading conveyor line 6 is fixed to the left end of the frame 201 by an L-shaped mounting part 51 arranged thereon. The L-shaped mounting part 5 is installed on the left and right profiles 50. A motor mounting plate 53 is installed on one side of the left and right profiles 50. A debugging motor 55, a main sprocket 54, a chain 56 and a driven sprocket 57 are installed on the motor mounting plate 53. An anti-static conveyor belt 52 is arranged for transmission between the left and right profiles 50. This component serves to receive the PCB board.

[0035] The precise loading mobile platform, quick line change grabbing mechanism, X-axis moving module, water-saving spray device for washing boards, dry cleaning brush mechanism, anti-static unloading conveyor line, dirt storage device, and ventilation and exhaust system are integrated from loading to cleaning, replacing manual labor, with a high degree of automation and continuous and stable operation.

[0036] 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. An intelligent solder surface cleaning device that saves board washing water, characterized by: The cleaning device is composed of a frame (201), a precise loading mobile platform (1), a quick line change grabbing mechanism (2), an X-axis moving module (3), a water-saving board washing spray device (4), a dry cleaning brush mechanism (5), an anti-static material unloading conveyor line (6), a dirt storage device (7), a ventilation and exhaust system (8), a human-machine operation interface (9), and a pressurized tank (10) component. The frame (201) is provided with a pressurized tank (10), a human-machine operation interface (9), a precise loading mobile platform (1), a quick line change grabbing mechanism (2), an X-axis moving module (3), a water-saving board washing spray device (4), a dry cleaning brush mechanism (5), and an anti-static material unloading conveyor line (6). A dirt storage device (7) is provided below the dry cleaning brush mechanism (5); The quick line-changing grasping mechanism (2) comprises a welding square tube (19), an X-axis mounting plate (110) is fixed above the welding square tube (19), an X-axis module (11) and a linear guide rail (18) are fixed to the X-axis mounting plate (110), a fixed seat (111) is fixed to the X-axis module (11) and the linear guide rail (18), a servo motor mounting plate (115) is fixed to the fixed seat (111), the servo motor mounting plate (115) carries a ball screw (12), a servo motor (114), a pressure sensor (13) and a guide shaft (116), an adsorption carrier plate (15) is installed on the guide shaft (116), and a vacuum generator (14), a positioning guide shaft assembly (17), a positioning pressure rod assembly (112), a vacuum suction cup assembly (113) and a four-axis water baffle (117) are fixed on the adsorption carrier plate (15); The plate-washing water-saving spray device (4) comprises a lower bottom plate (30), a fixed side plate (31) above the lower bottom plate (30), a liquid storage tank (37), an adjustment block (36), an adjustment cylinder (38), an atomizing spray gun A (32), an atomizing spray gun B (33), an atomizing spray gun C (34), and a photoelectric sensor (35); The dry cleaning brush mechanism (5) comprises a bottom mounting plate (43), left and right side plates (44) are fixed above the bottom mounting plate (43), a terminal rotating shaft (45) and a synchronous wheel rotating shaft (47) are installed inside the top, a sisal roller brush (46) is installed in the middle, a servo motor A (40) and a servo motor B (42) are installed on the side, and a synchronous belt transmission assembly (41) is installed above the servo motor A (40) and the servo motor B (42); The anti-static material unloading conveyor line (6) is fixedly mounted on the left end of the frame (201) through an L-shaped mounting member (51) arranged thereon, the L-shaped mounting member (51) is mounted on the left and right profiles (50), a motor mounting plate (53) is mounted on one side of the left and right profiles (50), a debugging motor (55), a main sprocket (54), a chain (56) and a driven sprocket (57) are mounted on the motor mounting plate (53), and an anti-static conveyor belt (52) is arranged between the left and right profiles (50) for transmission; The quick line change grabbing mechanism (2) uses the Z axis to move up and down, absorbs the PCB board and then lifts it to a suitable height, and uses the lateral movement function of the X axis moving module (3) to move the quick line change grabbing mechanism (2) and the product PCB board to the top of the board washing water saving spray device (4). After the photoelectric sensing detects the rear PCB board, the spray gun in the pressurized tank (10) is pressurized, and the spray gun in the board washing water saving spray device (4) sprays the board washing water onto the bottom surface of the PCB board. The spraying range and amount can be automatically adjusted. After the spraying is completed, the quick line change grabbing mechanism (2) and the product PCB board are moved to the top of the drying and cleaning brush mechanism (5) by using the lateral movement function of the X-axis moving module (3), and the sprayed surface of the PCB board is moved downward close to the rotating sisal roller brush by using the up and down movement function of the Z-axis, and attached to it, and the lateral movement function of the X-axis moving module (3) is used to move left and right for 1 to 2 rounds to complete the washing action; The lateral movement function of the X-axis moving module (3) is used to move the quick line change grabbing mechanism (2) and the product PCB board to the top of the anti-static unloading conveyor line (6), and then the PCB board product is placed on the anti-static unloading conveyor line (6) and flows into the next process.

2. According to claim 1, a solder surface cleaning device that can save water for intelligent board washing is characterized by: The precise loading mobile platform (1) is composed of a fixture positioning plate (20), a guide rail base (21), a rodless cylinder (22), a photoelectric sensor (23), a photoelectric sensor (24), a buffer (25), a mounting base (26), and a linear guide rail (27). The guide rail base (21), the rodless cylinder (22), the buffer (25), the photoelectric sensor (23), and the photoelectric sensor (24) are fixed on the mounting base (26). The linear guide rail (27) is fixed on the guide rail base (21), and the fixture positioning plate (20) is fixed on the top.

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