Electroplating cleaning machine for circuit board production

Abstract

The invention discloses an electroplating cleaning machine for circuit board production, and relates to the technical field of circuit board production, equipment comprises a rectangular cleaning box with an open top surface, and a fixing plate in the box is connected with a translation mechanism and a loading connecting rod to fix a circuit board; the back plate and the transverse plate are matched with the flat inner cylinder, the flat clamping cylinder and the lifting mechanism to achieve lifting of the fixing plate. The high-pressure pump is connected with the high-pressure water pipe with the nozzle through the telescopic water pipe and the connecting water pipe to complete flushing operation. According to the equipment, through cooperation of all parts, automation of the whole process of circuit board fixing, ultrasonic cleaning, high-pressure flushing and drying is achieved. The translation mechanism ensures that the circuit board is accurately fixed, the high-pressure nozzle swings back and forth to enlarge the cleaning range, and the cleaning efficiency is greatly improved; the optimized lifting and translation mechanism ensures stable operation of equipment, reduces damage to the circuit board, reduces the defective rate, effectively improves the production benefit, and provides an efficient and reliable solution for electroplating cleaning of the circuit board.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board production, and particularly relates to a circuit board production electroplating cleaning machine. BACKGROUND

[0002] In the electronic manufacturing industry, circuit boards are a core component, and their manufacturing and assembly processes require very high standards for environmental factors and cleanliness. During the production process of circuit boards, especially after the electroplating process, the surface of the circuit board will inevitably be attached to various metal deposits, chemical residues and other impurities. The presence of these impurities can affect the performance of the circuit board, and even cause short circuits, oxidation and other faults.

[0003] In terms of circuit board fixation, existing cleaning equipment usually uses simple placement or fixation methods, lacking precise positioning and stable clamping structures. Circuit boards are prone to displacement during the cleaning process, resulting in uneven cleaning, affecting the cleaning effect, and thus reducing the quality of the circuit board, which cannot meet the cleaning requirements of high-precision circuit boards. In addition, the high-pressure nozzles of existing cleaning equipment are mostly fixedly arranged, and the cleaning coverage is limited, leaving dead angles and making it difficult to clean all parts of the circuit board, which limits the application range and cleaning efficiency of the equipment. SUMMARY

[0004] The purpose of the present application is to solve the problems of insufficient fixation, cleaning, stability and cleaning range in the electroplating cleaning of circuit boards in the prior art, and to provide a circuit board production electroplating cleaning machine.

[0005] In order to solve the problems in the prior art, the present application adopts the following technical solutions: A circuit board production electroplating cleaning machine, comprising a cleaning box, the cleaning box is a rectangular box with an open top, a fixed plate is suspended inside the cleaning box and horizontally distributed, a pair of symmetrically distributed flat outer cylinders are fixed on the top surface of the fixed plate, a plurality of pairs of parallel distributed object carrying connecting rods are arranged on the top surface of the fixed plate, a plurality of equally spaced circuit boards are placed between each pair of object carrying connecting rods, and the fixed plate is connected to the plurality of pairs of object carrying connecting rods through a translation mechanism; A back plate is fixed on the top edge of the back of the cleaning box, a vertical distribution horizontal plate is fixed on the top of the back plate, a pair of symmetrically distributed flat inner cylinders are fixed on the bottom surface of the horizontal plate, a flat clamping cylinder is slidingly inserted between each flat inner cylinder and the flat outer cylinder on the same side, and a lifting mechanism is installed on each flat clamping cylinder; The bottom front side of the horizontal plate is fixed with a pair of fixed lug seats, the bottom end of each fixed lug seat is rotatably inserted with a high-pressure water pipe, the bottom surface of each high-pressure water pipe is throughly provided with a plurality of equidistantly distributed high-pressure nozzles, the rear end of each high-pressure water pipe is throughly provided with a connecting water pipe, the rear end of each connecting water pipe is rotatably penetrated through the back plate and extends to the rear, the back surface of the back plate is mounted with a high-pressure pump, and the high-pressure pump is connected with the pair of connecting water pipes through a pair of telescopic water pipes.

[0006] Preferably, a plurality of equidistantly distributed U-shaped clamping grooves are formed on the opposite surfaces of each pair of object carrying links, and the two corners of the bottom of the circuit board are respectively clamped in the corresponding U-shaped clamping grooves. The back surface of the fixed plate is fixed with a plurality of equidistantly distributed trapezoidal plates, each trapezoidal plate is provided with a pair of oblique pin holes in an "eight" shape, the rear end of each object carrying link is fixed with a vertically distributed positioning pin shaft, and the bottom end of each positioning pin shaft is slidably inserted into the corresponding oblique pin hole.

[0007] Preferably, the translation mechanism comprises an I-shaped sliding rail and a U-shaped sliding plate, the front side of each pair of fixed plates is provided with a plurality of equidistantly distributed I-shaped sliding rails, the front end of each object carrying link is fixed with a U-shaped sliding plate, and each U-shaped sliding plate is slidably fitted on the corresponding I-shaped sliding rail. The bottom front side of the fixed plate is fixed with a plurality of pairs of rectangular clamping rings, the back surface of each I-shaped sliding rail is fixed with a rectangular sliding rod at both ends, and the rear end of each rectangular sliding rod is slidably inserted into the corresponding rectangular clamping ring.

[0008] Preferably, the middle part of each I-shaped sliding rail is provided with a first elliptical pin hole, and the bottom front side of the fixed plate is fixed with a plurality of equidistantly distributed L-shaped connecting plates, each L-shaped connecting plate is located between an adjacent pair of rectangular clamping rings. The front end of each L-shaped connecting plate is rotatably inserted with a fixed shaft, the top end of each fixed shaft is sleeved with a concentrically fixed fixed turntable, each fixed turntable is fixed with an eccentrically distributed fixed pin shaft, and the top end of each fixed pin shaft is slidably inserted into the corresponding first elliptical pin hole.

[0009] Preferably, the front side of each fixed turntable is fixed with a driven swing arm, the front end of a plurality of driven swing arms is movably hinged with the same articulated connecting rod, and the front side of the fixed plate is fixed with a first connecting plate at the right end. The front end of the first connecting plate is provided with a first through hole, a second motor with the output end downward is fixedly installed in the first through hole, a crank swing arm is fixedly arranged at the motor shaft end of the second motor, and the front end of the crank swing arm is movably hinged with the right end of the articulated connecting rod.

[0010] Preferably, the bottom of the flat inner cylinder is slidingly inserted into the top port of the flat clamp cylinder, the bottom of the flat clamp cylinder is slidingly inserted into the top port of the flat outer cylinder, the outer side of the flat outer cylinder is provided with a rectangular notch, the bottom of the two side faces of the flat clamp cylinder is provided with a pair of U-shaped notches, and the two side faces of the flat inner cylinder are provided with a pair of long notches.

[0011] Preferably, the lifting mechanism comprises a double-end swing arm, a first arc-shaped connecting rod and a second arc-shaped connecting rod, the middle part of the outer side of the flat clamp cylinder is fixedly provided with a first motor, the motor shaft of the first motor is rotatably inserted into the middle part of the flat clamp cylinder, and the middle part of the motor shaft of the first motor is fixedly sleeved with the double-end swing arm. The two end parts of the double-end swing arm are provided with a pair of U-shaped openings, the inner bottom of the flat outer cylinder is provided with a first arc-shaped connecting rod which is movably hinged, the outer end part of the first arc-shaped connecting rod is movably hinged with the corresponding U-shaped opening, the inner top of the flat inner cylinder is provided with a second arc-shaped connecting rod which is movably hinged, and the outer end part of the second arc-shaped connecting rod is movably hinged with the corresponding U-shaped opening.

[0012] Preferably, the back surface of the back plate is fixedly provided with a second connecting plate, the rear end part of the second connecting plate is provided with a second through hole, a high-pressure pump is fixedly installed in the second through hole, the water inlet and outlet ends of the high-pressure pump are respectively provided with a water inlet pipe and a water outlet pipe, the top end part of the water outlet pipe is provided with a three-way pipe, the two end parts of the three-way pipe are respectively connected with the bottom end parts of a pair of telescopic water pipes, and the top end part of each telescopic water pipe is connected with the rear end part of a corresponding connecting water pipe.

[0013] Preferably, the rear end part of each connecting water pipe is sleeved with a concentric reciprocating gear, the back surface of the back plate is fixedly provided with a pair of limiting plates, the rear end part of each limiting plate is provided with a limiting sliding hole, the inside of each limiting sliding hole is slidingly inserted with a rectangular rack, each rectangular rack is meshingly connected with the reciprocating gear on the same side, a limiting connecting plate is fixedly arranged between the pair of rectangular racks, and the middle part of the limiting connecting plate is provided with a second elliptical pin hole. The middle part of the back surface of the back plate is provided with a third through hole, a third motor with the output end facing backward is fixedly installed in the inside of the third through hole, a limiting turntable is concentrically and fixedly connected with the end part of the motor shaft of the third motor, an eccentrically distributed limiting pin shaft is fixedly arranged on the outer side of the limiting turntable, and the rear end part of the limiting pin shaft is slidingly inserted into the second elliptical pin hole.

[0014] Preferably, a plurality of elliptical through holes are arranged on the fixed plate, two pairs of symmetrical inverse transducers are arranged on the bottom of the front and rear sides of the cleaning box, an ultrasonic generator is fixedly arranged on the middle part of the right side wall of the cleaning box, and the ultrasonic generator is electrically connected with the two pairs of inverse transducers in a wired manner. A plurality of drying connecting pipes are fixedly arranged on the inner bottom surface of the horizontal plate at equal intervals, a plurality of drying nozzles are provided on the bottom surface of each drying connecting pipe at equal intervals, a drying fan is fixedly installed on the top surface of the rear side of the horizontal plate, and the output end of the drying fan is connected with the rear end part of the drying connecting pipe in a penetrating manner.

[0015] Compared with the prior art, the present application has the following advantages: 1. In the present application, the cleaning tank contains cleaning liquid and the circuit board is fixed by the fixed plate and the carrier connecting rod, and the ultrasonic generator and the inverter transducer are combined to achieve deep cleaning, the high-pressure pump and the nozzle are used for secondary flushing, and the drying fan assembly is used for drying, thus forming a complete cleaning process system to meet the basic needs of cleaning and drying of the circuit board after electroplating; 2. In the present application, the newly designed translation mechanism provides precise guidance through the cooperation of the trapezoidal plate, the positioning pin shaft, the I-shaped slide rail and the U-shaped slide plate, and the rectangular clasp and the rectangular slide rod enhance the structural stability, and the linkage assembly driven by the second motor realizes accurate translation of the carrier connecting rod, solving the problem of inaccurate and unstable fixation of the circuit board and ensuring that the circuit board will not shift during the cleaning process, thus improving the consistency of the cleaning effect; 3. In the present application, the sliding nesting of the flat inner cylinder, the flat clamping cylinder and the flat outer cylinder in the lifting mechanism, combined with the rectangular notch, the U-shaped notch and the long notch, forms a limiting guide, and the first motor drives the double-head swing arm linkage arc-shaped connecting rod to drive the fixed plate and the circuit board to rise and fall smoothly, avoiding shaking and deviation during the lifting process, and providing a stable operation basis for cleaning, drying and other processes, preventing damage to the circuit board caused by unstable lifting; 4. In the present application, the added high-pressure nozzle reciprocating swing mechanism uses the third motor to drive the limiting turntable, which converts circular motion into linear reciprocating motion through the limiting pin shaft and the elliptical pin hole, and through the meshing of the rectangular rack and the reciprocating gear, drives the high-pressure water pipe and the nozzle to reciprocate, expands the coverage area of high-pressure spraying, solves the problem of limited cleaning coverage, greatly improves the cleaning efficiency, and ensures that each part of the circuit board can be fully cleaned; In summary, through the coordinated operation of various parts and mechanisms, the present application realizes full-process automatic operation from circuit board fixation, ultrasonic cleaning, high-pressure flushing to drying in terms of function; in terms of efficiency, the translation mechanism ensures accurate fixation, the nozzle swing expands the cleaning range, and significantly improves the cleaning efficiency; in terms of stability, the optimized design of the lifting mechanism and the translation mechanism ensures smooth and reliable operation of the equipment, reduces damage to the circuit board caused by equipment problems, reduces the rate of defective products, improves production efficiency, and provides an efficient, stable and reliable solution for cleaning of the circuit board after electroplating. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2Another perspective view of the overall structure of the present application; Figure 3 Front view of the overall structure of the present application; Figure 4 Right view of the overall structure of the present application; Figure 5 Structure of the fixed plate and several circuit boards of the present application; Figure 6 Exploded view of the structure of the fixed plate and several circuit boards of the present application; Figure 7 Structure of the flat outer cylinder, flat clamp cylinder and flat inner cylinder of the present application; Figure 8 Exploded view of the structure of the flat outer cylinder, flat clamp cylinder and flat inner cylinder of the present application; Figure 9 Structure of the back plate and cross plate of the present application; Figure 10 Exploded view of the structure of the back plate and cross plate of the present application; In the figure, serial number: 100, cleaning tank; 101, ultrasonic generator; 102, inverse transducer; 103, flat outer cylinder; 104, flat clamp cylinder; 105, flat inner cylinder; 106, rectangular notch; 107, U-shaped notch; 108, long strip notch; 109, first motor; 110, double-end swing arm; 111, first arc-shaped connecting rod; 112, second arc-shaped connecting rod; 200, fixed plate; 201, trapezoidal plate; 202, oblique pin hole; 203, rectangular snap ring; 204, rectangular slide rod; 205, I-shaped slide rail; 206, first elliptical pin hole; 207, U-shaped slide plate; 208, object-carrying connecting rod; 209, U-shaped clamping groove; 210, positioning pin shaft; 211, circuit board; 212, crank swing arm; 213, L-shaped connecting plate; 214, fixed shaft; 215, fixed rotary disc; 216, fixed pin shaft; 217, driven swing arm; 218, hinged connecting rod; 219, first connecting plate; 220, second motor; 300, back plate; 301, cross plate; 302, drying fan; 303, drying connecting pipe; 304, drying nozzle; 305, third motor; 306, limiting rotary disc; 307, limiting pin shaft; 308, limiting plate; 309, rectangular rack; 310, limiting connecting plate; 311, second elliptical pin hole; 312, fixed lug seat; 313, high-pressure water pipe; 314, high-pressure nozzle; 315, connecting water pipe; 316, reciprocating gear; 317, second connecting plate; 318, high-pressure pump; 319, tee joint; 320, telescopic water pipe. DETAILED DESCRIPTION

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1: This example provides an electroplating cleaning machine for circuit board production. See [link to example]. Figures 1-10 Specifically, it includes a cleaning tank 100, which is a rectangular box with an open top. The cleaning tank 100 serves as the main body of the equipment, providing space to hold cleaning fluid and circuit board 211. Its open top design facilitates the placement and removal of circuit board 211. Inside the cleaning tank 100, horizontally distributed fixing plates 200 are suspended. The fixing plates 200 are used to support the load-bearing connecting rod 208 and circuit board 211. The elliptical through holes on them allow the cleaning fluid to flow, assisting in cleaning. A pair of symmetrically distributed flat outer cylinders 103 are fixed on both sides of the top surface of the fixed plate 200. Several pairs of parallel load-bearing rods 208 are provided on the top surface of the fixed plate 200. Several equidistant circuit boards 211 are placed between each pair of load-bearing rods 208. The fixed plate 200 is connected to several pairs of load-bearing rods 208 through a translation mechanism. A back plate 300 is fixedly provided on the top edge of the back of the cleaning tank 100. A vertically distributed horizontal plate 301 is fixedly provided on the top of the back plate 300. A pair of symmetrically distributed flat inner cylinders 105 are fixedly provided on both sides of the bottom surface of the horizontal plate 301. A flat clamping cylinder 104 is slidably inserted between each flat inner cylinder 105 and the flat outer cylinder 103 on the same side. A lifting mechanism is installed on each flat clamping cylinder 104. A pair of fixed lugs 312 are fixedly provided on the front side of the bottom of the horizontal plate 301. A high-pressure water pipe 313 is rotatably inserted into the bottom end of each fixed lug 312. Several high-pressure nozzles 314 are equidistantly distributed through the bottom surface of each high-pressure water pipe 313. A connecting water pipe 315 is rotatably provided through the rear end of each high-pressure water pipe 313. The rear end of each connecting water pipe 315 rotatably passes through the back plate 300 and extends to the rear. A high-pressure pump 318 is installed at the bottom of the back of the back plate 300. The high-pressure pump 318 is connected to a pair of connecting water pipes 315 through a pair of telescopic water pipes 320. The high-pressure pump 318 pressurizes clean water and sprays high-pressure spray from the high-pressure nozzles 314 through the connecting water pipes 315 and the high-pressure water pipes 313 to perform secondary rinsing on the circuit board 211.

[0019] It should be noted that in this embodiment, several U-shaped slots 209 are provided on the opposite surfaces of each pair of carrying rods 208. The two bottom corners of the circuit board 211 are respectively engaged in the corresponding U-shaped slots 209. The carrying rods 208 fix the circuit board 211 through the U-shaped slots 209 to limit the position of the circuit board 211 and ensure the stability of the cleaning process. The fixing plate 200 is provided with a plurality of evenly distributed elliptical through holes, the cleaning box 100 is provided with two pairs of symmetrically distributed inverse transducers 102 at the bottom of the front and rear sides, and the right side wall of the cleaning box 100 is fixedly provided with an ultrasonic generator 101 at the middle part. The ultrasonic generator 101 is electrically connected with the two pairs of inverse transducers 102 in a wired manner. The ultrasonic generator 101 and the inverse transducers 102: the ultrasonic generator 101 generates a high-frequency electric signal, which is converted into ultrasonic waves by the inverse transducers 102, and the ultrasonic waves realize deep cleaning of the circuit board 211 by using the cavitation effect. The inner bottom surface of the horizontal plate 301 is fixedly provided with a plurality of equally spaced drying connecting pipes 303, the bottom surface of each drying connecting pipe 303 is provided with a plurality of equally spaced drying nozzles 304, and the top surface of the horizontal plate 301 is fixedly provided with a drying fan 302 at the rear side. The output end of the drying fan 302 is connected with the rear end of the drying connecting pipe 303 in a penetrating manner, the drying fan 302 generates hot air, the hot air is sprayed from the drying nozzles 304 through the drying connecting pipe 303, and the cleaned circuit board 211 is subjected to drying treatment.

[0020] The working principle of the embodiment is as follows: first, a proper amount of cleaning liquid is injected into the cleaning box 100, and the two corners at the bottom of the circuit board 211 after electroplating are clamped in the U-shaped clamping groove 209 on the opposite side of the carrier connecting rod 208; the plurality of carrier connecting rods 208 are adjusted by using the translation mechanism to ensure that the circuit board 211 is fixed between the plurality of pairs of carrier connecting rods 208; then, the fixing plate 200 is controlled by the lifting mechanism to drive the plurality of circuit boards 211 to sink to the bottom of the cleaning box 100, so that the cleaning liquid completely immerses the circuit board 211; at this time, the ultrasonic generator 101 generates a high-frequency electric signal, which is transmitted to the inverse transducers 102 at the bottom of the front and rear sides in the cleaning box 100 through wires, the inverse transducers 102 generate ultrasonic waves based on the inverse piezoelectric effect, the ultrasonic waves are transmitted into the cleaning liquid to induce cavitation effect, and ultrasonic cleaning of the circuit board 211 is realized; After the ultrasonic cleaning is completed, the fixing plate 200 and the circuit board 211 are lifted to the original position by the lifting mechanism again, the high-pressure pump 318 is started, the clean water is pressurized by the high-pressure pump 318, sequentially passes through the telescopic water pipe 320, the connecting water pipe 315, and the high-pressure water pipe 313, and finally forms high-pressure spray from the high-pressure nozzle 314 to perform high-pressure flushing on the circuit board 211, and the operation of the high-pressure pump 318 is stopped after the flushing is completed; Finally, the drying fan 302 is started, hot air is sprayed from the drying nozzles 304 through the drying connecting pipe 303 to perform drying treatment on the circuit board 211, and the carrier connecting rod 208 is adjusted by using the translation mechanism after the drying is completed, the circuit board 211 is loosened, and the circuit board 211 can be taken out.

[0021] In the embodiment, a new translation mechanism is designed to solve the problem that the circuit board 211 is not fixed accurately and stably. In the implementation process, as shown in Figure 5 and Figure 6 The back of the fixed plate 200 is fixed with a plurality of equidistantly distributed trapezoidal plates 201, each of which is provided with a pair of oblique pin holes 202 in the shape of an "eight" character, the rear end of each object carrying link 208 is fixed with a vertically distributed positioning pin shaft 210, the bottom end of each positioning pin shaft 210 is slidingly inserted into the corresponding oblique pin hole 202, and the oblique pin hole 202 on the trapezoidal plate 201 cooperates with the positioning pin shaft 210 to limit and guide the object carrying link 208, ensuring the stability of its translation; The translation mechanism includes I-shaped sliding rails 205 and U-shaped sliding plates 207, the front side of each pair of fixed plates 200 is provided with a plurality of equidistantly distributed I-shaped sliding rails 205, the front end of each object carrying link 208 is fixed with a U-shaped sliding plate 207, and each U-shaped sliding plate 207 is slidingly fitted on the corresponding I-shaped sliding rail 205, the U-shaped sliding plate 207 and the I-shaped sliding rail 205 slidingly cooperate to provide track support for the translation of the object carrying link 208; The bottom front side of the fixed plate 200 is fixed with a plurality of pairs of rectangular clamping rings 203, the back of each I-shaped sliding rail 205 is fixed with a rectangular slide rod 204 at both ends, the rear end of each rectangular slide rod 204 is slidingly inserted into the corresponding rectangular clamping ring 203, and the rectangular slide rod 204 slides in the rectangular clamping ring 203 to further limit the movement direction of the I-shaped sliding rail 205 and enhance the structural stability; The middle part of each I-shaped sliding rail 205 is provided with a first elliptical pin hole 206, the bottom front side of the fixed plate 200 is fixed with a plurality of equidistantly distributed L-shaped connecting plates 213, each of which is located between a pair of adjacent rectangular clamping rings 203; the front end of each L-shaped connecting plate 213 is rotatably inserted with a fixed shaft 214, the top end of each fixed shaft 214 is sleeved with a concentrically fixed fixed turntable 215, each fixed turntable 215 is fixed with a plurality of fixed pin shafts 216 distributed eccentrically, and the top end of each fixed pin shaft 216 is slidingly inserted into the corresponding first elliptical pin hole 206; The front side of each fixed rotating disc 215 is fixedly provided with a driven swing arm 217, and the front end of each driven swing arm 217 is movably connected with the same articulated connecting rod 218, and the front end of the first connecting plate 219 is movably connected with the right end of the articulated connecting rod 218; the front end of the first connecting plate 219 is provided with a first through hole, and the inside of the first through hole is fixedly installed with a second motor 220 with the output end downward, and the motor shaft end of the second motor 220 is fixedly provided with a crank swing arm 212, and the front end of the crank swing arm 212 is movably connected with the right end of the articulated connecting rod 218; the second motor 220 drives the crank swing arm 212 to rotate, and drives the driven swing arm 217 and the fixed rotating disc 215 to rotate through the articulated connecting rod 218, and then drives the fixed pin shaft 216 to cooperate with the first elliptical pin hole 206, drives the I-shaped slide rail 205 and the translation load connecting rod 208, and realizes the fixing and loosening of the circuit board 211.

[0022] The working principle of the embodiment is as follows: when the circuit board 211 needs to be fixed and limited, the second motor 220 is started, the motor shaft of the second motor 220 is used as the power output end, and the crank swing arm 212 is driven to start rotating; the crank swing arm 212 transmits power to the driven swing arms 217 through the articulated connecting rod 218, and then drives the fixed rotating disc 215 connected with the driven swing arms 217 to rotate synchronously; During the rotation of the fixed rotating disc 215, the eccentrically distributed fixed pin shaft 216 on the fixed rotating disc 215 cooperates with the first elliptical pin hole 206 in the middle of the I-shaped slide rail 205 to form a limiting guide structure, based on which the I-shaped slide rail 205 drives the rectangular slide rod 204 at the back end to slide along the rectangular clasp 203 on the bottom surface of the fixed plate 200. At the same time, the positioning pin shaft 210 at the rear end of the load connecting rod 208 and the oblique pin hole 202 in the shape of "eight" distributed on the trapezoidal plate 201 constitute another set of limiting constraints; when the I-shaped slide rail 205 slides, the U-shaped slide plate 207 at the front end of the load connecting rod 208 moves along the I-shaped slide rail 205 by virtue of the sliding cooperation relationship with the I-shaped slide rail 205; under the synergistic action of the two sets of limiting guide structures, the pair of load connecting rods 208 realizes relative translation, so as to firmly fix and limit the plurality of circuit boards 211 clamped in the U-shaped clamping groove 209, and ensure the stable performance of the subsequent cleaning, drying and other processes.

[0023] Embodiment three: based on embodiment two, a new lifting mechanism is designed in this embodiment to solve the problems of insufficient stability and easy deviation of the movement track of the fixed plate 200 and the circuit board 211 during lifting, and the embodiment also includes: In the specific implementation process, for example, Figure 7 and Figure 8As shown, the bottom of the flat inner cylinder 105 is slidingly inserted into the top port of the flat clamp cylinder 104, the bottom of the flat clamp cylinder 104 is slidingly inserted into the top port of the flat outer cylinder 103, the outer side of the flat outer cylinder 103 is provided with a rectangular notch 106, the bottom of the two side surfaces of the flat clamp cylinder 104 is provided with a pair of U-shaped notches 107, the two side surfaces of the flat inner cylinder 105 are provided with a pair of long notches 108, and the flat inner cylinder 105, the flat clamp cylinder 104 and the flat outer cylinder 103 are slidingly nested to form a lifting base structure, and the rectangular notch 106, the U-shaped notch 107 and the long notch 108 constitute a limiting guide to ensure smooth lifting. The lifting mechanism includes a double-end swing arm 110, a first arc-shaped connecting rod 111 and a second arc-shaped connecting rod 112. The middle part of the outer side of the flat clamp cylinder 104 is fixedly provided with a first motor 109, the motor shaft of the first motor 109 is rotatably inserted into the middle part of the flat clamp cylinder 104, and the middle part of the motor shaft of the first motor 109 is fixedly sleeved with the double-end swing arm 110. The two end parts of the double-end swing arm 110 are provided with a pair of U-shaped openings, the inner bottom of the flat outer cylinder 103 is provided with the first arc-shaped connecting rod 111 which is movably hinged, the outer end part of the first arc-shaped connecting rod 111 is movably hinged with the corresponding U-shaped opening, the inner top of the flat inner cylinder 105 is provided with the second arc-shaped connecting rod 112 which is movably hinged, the outer end part of the second arc-shaped connecting rod 112 is movably hinged with the corresponding U-shaped opening, the first motor 109 drives the double-end swing arm 110 to rotate, and through the hinging of the first arc-shaped connecting rod 111 and the second arc-shaped connecting rod 112, the flat outer cylinder 103 and the flat clamp cylinder 104 are driven to slide up and down, so as to realize the lifting of the fixed plate 200 and the circuit board 211.

[0024] The working principle of the embodiment is as follows: when it is needed to drive the fixed plate 200 and the circuit board 211 to translate downward, the first motors 109 on both sides are started, the motor shaft of the first motor 109 serves as a power source to drive the double-end swing arm 110 fixedly sleeved in the middle part to start rotating; with the rotation of the double-end swing arm 110, the two end U-shaped openings thereof form a hinged linkage structure with the first arc-shaped connecting rod 111 and the second arc-shaped connecting rod 112. In this linkage process, the double-end swing arm 110 exerts a force on the flat outer cylinder 103 through the hinging of the first arc-shaped connecting rod 111; since the bottom of the flat outer cylinder 103 is in a sliding fit with the top of the flat clamp cylinder 104, and the rectangular notch 106 on the outer side of the flat outer cylinder 103, the U-shaped notch 107 at the bottom of the two side surfaces of the flat clamp cylinder 104 and the long notch 108 at the two side surfaces of the flat inner cylinder 105 jointly constitute a limiting guide structure, so that the flat outer cylinder 103 can slide downward along the flat clamp cylinder 104; At the same time, the articulation of the double-jointed swing arm 110 and the second arc-shaped connecting rod 112 generates a reaction force on the flat inner cylinder 105; based on the sliding nesting relationship between the top of the flat clamping cylinder 104 and the bottom of the flat inner cylinder 105, the flat clamping cylinder 104 will slide downward along the flat inner cylinder 105 synchronously; since the flat clamping cylinder 104 is connected to the fixed plate 200 through relevant structures, it ultimately drives the fixed plate 200 and the several circuit boards 211 clamped thereon to translate smoothly downward, achieving the operation of immersing or lifting the circuit boards 211 in or out of the cleaning solution.

[0025] Embodiment Four: On the basis of Embodiment Three, this embodiment solves the problems of limited coverage and low cleaning efficiency of high-pressure cleaning by adding a reciprocating swing mechanism of the high-pressure spray head 314, which also includes: In the specific implementation process, as shown in Figure 9 and Figure 10 , the back surface of the back plate 300 is fixedly provided with a second connecting plate 317, the rear end of the second connecting plate 317 is provided with a second through hole, and the high-pressure pump 318 is fixedly installed in the second through hole. The water inlet and outlet ends of the high-pressure pump 318 are respectively provided with a water inlet pipe and a water outlet pipe, and the top end of the water outlet pipe is provided with a tee joint 319. The two ends of the tee joint 319 are respectively connected with the bottom ends of a pair of telescopic water pipes 320. The top end of each telescopic water pipe 320 is connected with the rear end of the corresponding connecting water pipe 315. The rectangular rack 309 is engaged with the reciprocating gear 316 to drive the reciprocating swing of the connecting water pipe 315, the high-pressure water pipe 313 and the high-pressure spray head 314, thereby expanding the coverage area of the high-pressure spray. The rear end of each connecting water pipe 315 is provided with a concentric reciprocating gear 316. The back surface of the back plate 300 is fixedly provided with a pair of limiting plates 308. The rear end of each limiting plate 308 is provided with a limiting sliding hole. The inside of each limiting sliding hole is slidably inserted with a rectangular rack 309. Each rectangular rack 309 is engaged with the reciprocating gear 316 on the same side. A limiting connecting plate 310 is fixedly provided between a pair of rectangular racks 309. The middle part of the limiting connecting plate 310 is provided with a second elliptical pin hole 311. The limiting connecting plate 310 drives the rectangular rack 309 to reciprocate in the limiting sliding hole, thereby realizing the transmission and guidance of movement. The back surface of the back plate 300 is provided with a third through hole in the middle part. The inside of the third through hole is fixedly installed with a third motor 305 with the output end facing backward. The motor shaft end of the third motor 305 is provided with a concentric limiting turntable 306. The outer side of the limiting turntable 306 is fixedly provided with eccentric limiting pin shafts 307. The rear end of the limiting pin shaft 307 is slidably inserted into the second elliptical pin hole 311. The third motor 305 drives the limiting turntable 306 to rotate, and the limiting pin shaft 307 performs circular motion. Through cooperation with the second elliptical pin hole 311, the circular motion is converted into linear reciprocating motion.

[0026] The working principle of the embodiment is as follows: when it is needed to expand the coverage area of high-pressure spraying, the third motor 305 is started, the motor shaft of the third motor 305 drives the limiting turntable 306 to rotate synchronously, the limiting pin shaft 307 eccentrically arranged on the outer side of the limiting turntable 306 moves in a circular motion; the limiting pin shaft 307 and the second elliptical pin hole 311 in the middle of the limiting connecting plate 310 form a sliding fit, and the circular motion is converted into linear reciprocating motion; With the rotation of the limiting turntable 306, the limiting connecting plate 310 drives the two-sided rectangular rack 309 to reciprocate along the limiting sliding hole at the rear end of the limiting plate 308; since the rectangular rack 309 is engaged with the reciprocating gear 316 at the rear end of the connecting water pipe 315, the reciprocating motion of the rectangular rack 309 drives the reciprocating gear 316 to rotate forward and backward alternately; The rotation is transmitted to the high-pressure water pipe 313 through the connecting water pipe 315, so that the high-pressure water pipe 313 and the several high-pressure nozzles 314 on the bottom surface thereof reciprocate around the rotating connection between the connecting water pipe 315 and the back plate 300; in this process, the high-pressure pump 318 pressurizes water, which is then delivered to the high-pressure water pipe 313 through the water inlet pipe, the water outlet pipe, the tee joint 319, the telescopic water pipe 320 and the connecting water pipe 315, and finally sprayed out from the high-pressure nozzles 314; due to the reciprocating swing of the high-pressure nozzles 314, the high-pressure spray can cover a larger cleaning area, and the cleaning efficiency of the circuit board 211 is improved.

[0027] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An electroplating cleaning machine for circuit board production, comprising a cleaning tank (100), characterized in that: The cleaning tank (100) has a fixed plate (200) inside. A pair of flat outer cylinders (103) are fixed on both sides of the top surface of the fixed plate (200). Several pairs of load-bearing connecting rods (208) are provided on the top surface of the fixed plate (200). Several circuit boards (211) are placed between each pair of load-bearing connecting rods (208). The fixed plate (200) is connected to several pairs of load-bearing connecting rods (208) through a translation mechanism. A back plate (300) is fixed on the top edge of the back of the cleaning tank (100). A horizontal plate (301) is fixed on the top of the back plate (300). A pair of flat inner cylinders (105) are fixed on both sides of the bottom surface of the horizontal plate (301). The flat inner cylinders (105) are connected to the same A flat clamp (104) is slidably inserted between the flat outer cylinders (103) on the side, and a lifting mechanism is installed on the flat clamp (104); a pair of fixed ear seats (312) are fixedly provided on the front side of the bottom of the horizontal plate (301), and a high-pressure water pipe (313) is rotatably inserted at the bottom end of the fixed ear seat (312). Several high-pressure nozzles (314) are provided through the bottom surface of the high-pressure water pipe (313), and a connecting water pipe (315) is provided through the rear end of the high-pressure water pipe (313). A high-pressure pump (318) is installed at the bottom of the back of the back plate (300), and the high-pressure pump (318) is connected to a pair of connecting water pipes (315) through a pair of telescopic water pipes (320).

2. The electroplating cleaning machine for circuit board production according to claim 1, characterized in that: Each pair of load-carrying rods (208) has several U-shaped slots (209) on their opposite surfaces. The bottom two corners of the circuit board (211) are respectively engaged in the corresponding U-shaped slots (209). Several trapezoidal plates (201) are fixed on the back of the fixing plate (200). A pair of oblique pin holes (202) are opened on the trapezoidal plates (201). The rear end of the load-carrying rod (208) is fixed with a positioning pin (210). The bottom end of the positioning pin (210) is slidably inserted into the corresponding oblique pin hole (202).

3. The electroplating cleaning machine for circuit board production according to claim 2, characterized in that: The translation mechanism includes an I-shaped slide rail (205) and a U-shaped slide plate (207). Each pair of fixed plates (200) has several I-shaped slide rails (205) on its front side. The front end of the load-carrying connecting rod (208) is fixed with a U-shaped slide plate (207), which slides on the corresponding I-shaped slide rail (205). Several pairs of rectangular retaining rings (203) are fixed on the front side of the bottom of the fixed plate (200). Rectangular slide rods (204) are fixed at both ends of the back of the I-shaped slide rail (205). The rear ends of the rectangular slide rods (204) are slidably inserted into the corresponding rectangular retaining rings (203).

4. The electroplating cleaning machine for circuit board production according to claim 3, characterized in that: Each I-shaped slide rail (205) has a first elliptical pin hole (206) in the middle. Several L-shaped connecting plates (213) are fixed on the front side of the bottom of the fixed plate (200). The L-shaped connecting plates (213) are located between a pair of adjacent rectangular retaining rings (203). The front end of the L-shaped connecting plate (213) is rotatably inserted with a fixed shaft (214). The top end of the fixed shaft (214) is fitted with a fixed turntable (215). A fixed pin (216) is fixed on the fixed turntable (215). The top end of the fixed pin (216) is slidably inserted into the corresponding first elliptical pin hole (206).

5. The electroplating cleaning machine for circuit board production according to claim 4, characterized in that: Each fixed turntable (215) has a driven swing arm (217) fixed on its front side, and the front ends of several driven swing arms (217) are movably hinged to the same hinged link (218). The right end of the front side of the fixed plate (200) is fixed with a first connecting plate (219); the front end of the first connecting plate (219) is equipped with a second motor (220), and the motor shaft end of the second motor (220) is fixed with a crank swing arm (212), and the front end of the crank swing arm (212) is movably hinged to the right end of the hinged link (218).

6. The electroplating cleaning machine for circuit board production according to claim 5, characterized in that: The bottom of the flat inner cylinder (105) is slidably inserted into the top port of the flat clamp (104), the bottom of the flat clamp (104) is slidably inserted into the top port of the flat outer cylinder (103), a rectangular notch (106) is opened on the outer side of the flat outer cylinder (103), a pair of U-shaped notches (107) are opened at the bottom of the two sides of the flat clamp (104), and a pair of long strip notches (108) are opened on the two sides of the flat inner cylinder (105).

7. The electroplating cleaning machine for circuit board production according to claim 6, characterized in that: The lifting mechanism includes a double-headed swing arm (110), a first arc-shaped connecting rod (111), and a second arc-shaped connecting rod (112). A first motor (109) is fixedly installed in the middle of the outer side of the flat clamp (104). The motor shaft of the first motor (109) is rotatably inserted through the middle of the flat clamp (104), and the double-headed swing arm (110) is fixedly sleeved in the middle of the motor shaft of the first motor (109). The bottom of the flat outer cylinder (103) is provided with a first arc-shaped connecting rod (111), and the top of the flat inner cylinder (105) is provided with a second arc-shaped connecting rod (112). The first arc-shaped connecting rod (111) and the second arc-shaped connecting rod (112) are respectively movably hinged to the two ends of the double-headed swing arm (110).

8. The electroplating cleaning machine for circuit board production according to claim 7, characterized in that: A second connecting plate (317) is fixedly installed at the bottom of the back of the back plate (300). A high-pressure pump (318) is fixedly installed on the second connecting plate (317). The inlet and outlet ends of the high-pressure pump (318) are respectively provided with an inlet pipe and a outlet pipe. A tee (319) is provided through the top end of the outlet pipe. The two ends of the tee (319) are respectively connected through to the bottom ends of a pair of telescopic water pipes (320). The top end of the telescopic water pipe (320) is connected through to the rear end of the corresponding connecting water pipe (315).

9. The electroplating cleaning machine for circuit board production according to claim 8, characterized in that: A reciprocating gear (316) is fitted at the rear end of the connecting water pipe (315). A pair of limiting plates (308) are fixed on the back of the back plate (300). A rectangular rack (309) is slidably inserted at the rear end of the limiting plate (308). The rectangular rack (309) meshes with the reciprocating gear (316) on the same side. A limiting connecting plate (310) is fixed between the pair of rectangular racks (309). A second elliptical pin hole (311) is opened in the middle of the limiting connecting plate (310). A third motor (305) is fixedly installed in the middle of the back of the back plate (300). A limiting turntable (306) is fitted at the end of the motor shaft of the third motor (305). A limiting pin (307) is fixed on the outer side of the limiting turntable (306). The rear end of the limiting pin (307) is slidably inserted into the second elliptical pin hole (311).

10. The electroplating cleaning machine for circuit board production according to claim 9, characterized in that: The fixed plate (200) has several elliptical through holes. The bottom of the front and rear sides of the cleaning box (100) is provided with two pairs of inverters (102). An ultrasonic generator (101) is fixed in the middle of the right side wall of the cleaning box (100). The ultrasonic generator (101) is electrically connected to the two pairs of inverters (102) by wire. Several drying pipes (303) are fixed in the bottom surface of the horizontal plate (301). Several drying nozzles (304) are provided through the bottom surface of the drying pipes (303). A drying fan (302) is fixedly installed on the rear side of the top surface of the horizontal plate (301). The output end of the drying fan (302) is connected through the rear end of the drying pipes (303).

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