All-round cleaning process and equipment for printed circuit boards

Abstract

The present invention discloses a omnidirectional cleaning process and device for printed circuit boards, and relates to the technical field of printed circuit boards, including a frame; a controller is fixedly installed at one end of the frame, a clamping frame is arranged inside the frame, a plurality of circuit board bodies are clamped at the inner end of the clamping frame, and a plurality of clamping plates are slidably installed on the clamping frame; a hydraulic cylinder is fixedly connected to the outer end of the clamping frame, and the inner end of the movable rod of the hydraulic cylinder passes through the clamping frame and is fixedly connected to the clamping plate; an adjustment frame is slidably installed on one side of the frame through a hydraulic rod. The present invention can automatically separate multiple circuit boards stacked together through the mutual cooperation between the support plate and the push plate and other structures, and can expand the distance between two circuit boards through the mutual cooperation between the upper clamping strip and the lower clamping strip, thereby solving the problem that the copper attached on the surface of the two circuit boards scratches the surface of the circuit boards when the two circuit boards slide relative to each other, reducing the wear between the circuit boards, thereby improving the efficiency of subsequent cleaning of the circuit boards.

Description

Technical Field

[0001] The invention relates to the technical field of printed circuit boards, and in particular to an all-round cleaning process and device for printed circuit boards. Background Art

[0002] Printed circuit boards are important components in the electronics industry. Their main function is to realize circuit connections between various electronic components, act as channels for current transmission and signal transfer, and are key electronic interconnection parts in electronic products. During the processing of circuit boards, copper-containing coatings are sprayed on the surface of the circuit boards, and then a copper film is formed after drying and curing. However, in this process, excess coatings will form copper impurities, which need to be cleaned and removed to ensure the performance and reliability of the circuit boards.

[0003] The existing printed circuit board cleaning device has the following shortcomings: the overall structure is relatively simple, the cleaning effect is relatively poor, and there is no corresponding treatment for the waste cleaning liquid after cleaning, which is similar to the traditional cleaning equipment.

[0004] A Chinese patent with a publication number of CN111495826B is proposed in the prior art to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a printed circuit board cleaning device relates to the technical field of printed circuit board cleaning; in order to solve the problem of poor cleaning effect; it specifically includes a cleaning box, the outer walls on both sides of the top of the cleaning box are respectively provided with mounting grooves, and the inner walls of the two mounting grooves are fixed with a cleaning liquid tank and a cleaning liquid pump by bolts, the input end of the cleaning liquid pump is connected to the cleaning liquid tank through a cleaning liquid guide pipe, the output end of the cleaning liquid pump is fixed with a connecting pipe by threads, the same baffle is welded to the inner walls on both sides of the cleaning box near the bottom of the connecting pipe, and the outer wall on one side of the connecting pipe is fixed to the top of the baffle by a fixing block, the outer surface of the connecting pipe is respectively fixed with a first conduit and a second conduit by threads, the bottom ends of the first conduit and the second conduit are provided with a cleaning liquid wheel driving mechanism, and the bottoms of the two cleaning liquid wheel driving mechanisms are fixed with cleaning brushes by threads. The present invention not only improves the utilization rate of the cleaning liquid, but also promotes the efficiency and quality of printed circuit board cleaning. However, the existing device can only clean a single circuit board at a time. If multiple circuit boards need to be cleaned, they need to be cleaned one by one. The overall operation process is relatively cumbersome and the work efficiency is insufficient. Summary of the invention

[0005] The purpose of the present invention is to provide a comprehensive cleaning process and device for printed circuit boards to solve the problem that the existing device proposed in the background technology can only clean a single circuit board at a time. If multiple circuit boards need to be cleaned, they need to be cleaned one by one, the overall operation process is relatively cumbersome, and the work efficiency is insufficient.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The omnidirectional cleaning device for printed circuit boards comprises a frame; a controller is fixedly installed at one end of the frame, a clamping frame is arranged inside the frame, a plurality of circuit board bodies are clamped at the inner end of the clamping frame, and a plurality of clamping plates are slidably installed on the clamping frame; a hydraulic cylinder is fixedly connected to the outer end of the clamping frame, and the inner end of the movable rod of the hydraulic cylinder passes through the clamping frame and is fixedly connected to the clamping plate;

[0008] The cam is provided with a plurality of push plates at intervals along the vertical direction, and an electric push rod is fixedly installed on the other end of the push plate. The other side of the electric push rod is fixedly connected to the adjusting frame. An adjusting plate is slidably installed on the other side of the frame through a hydraulic rod. One side of the adjusting plate is fixedly connected with a plurality of supporting blocks, and the tops of the supporting blocks are respectively fitted with the surface of the circuit board body. A slide plate is slidably installed on the other side of the push plate through a plurality of spring fours, and a lower clamping strip is fixedly connected to the other side of the slide plate. A roller is fixedly installed on the bottom of the lower clamping strip, and an upper clamping strip is fixedly installed on the other side of the slide plate at the top of the lower clamping strip. A friction pad is attached to the bottom of the upper clamping strip, and the lower edge of the lower clamping strip is lower than the axial height of the roller. A plurality of partitions are provided on the other side of the adjusting frame, and one side of the partition corresponds to the push plate one by one.

[0009] A plurality of cleaning components are arranged on the top of the clamping frame, and the cleaning components are used to scrape and clean the copper-attached impurities adhered to the surface of the circuit board body.

[0010] The existing device proposed in the background technology can only clean a single circuit board at a time. If multiple circuit boards need to be cleaned, they need to be cleaned one by one. The overall operation process is relatively cumbersome and the work efficiency is insufficient. In the present application, an electric push rod is installed to drive the push plate to move to the other side, so that the circuit board body at the top placed on the support plate moves to the other side, moves it to the top of the support block, and supports it with the support block, and drives the support plate to move to the top with the electric push rod, so that each top circuit board body can be pushed to the top of each support block in turn, thereby automatically separating the multiple circuit board bodies, preventing the circuit board bodies from being stacked together and inconvenient to clean the surfaces blocked by them, and eliminating the need for operators to manually separate them, thereby improving work efficiency.

[0011] Because some copper impurities remain on the surface of the circuit board body, there will be a certain gap between the circuit board bodies after they are stacked. The circuit board body is directly pushed to the other side by the push plate to separate it. During the pushing process, the copper impurities are easy to scratch the surface of other circuit board bodies. Therefore, in the present application, a lower card bar and an upper card bar are installed, and they are moved to the other side so that the lower card bar extends between the two circuit board bodies, thereby separating the circuit board body placed on the top from the circuit board body at the bottom, and in the process of moving, the roller can contact the surface of the bottom circuit board body, and the roller is squeezed by the circuit board body, which can drive the slide plate to move to the top, so that the roller rolls along the surface of the bottom circuit board body, and in the process of moving the top circuit board body, the partition can just intercept the other side of the remaining circuit board bodies below to prevent these circuit board bodies from following the top circuit board body to move to the other side, thereby solving the problem that the copper on the surface of the two circuit board bodies scratches the surface of the circuit board bodies during relative sliding, and reducing the wear between the circuit board bodies.

[0012] A further improvement of the technical solution of the present invention is that: the cleaning component includes a plurality of connecting frames fixedly installed inside the frame, a rotating frame is rotatably installed inside the connecting frame, a mounting plate is arranged inside the rotating frame, and a scraper is connected to the inner side of the mounting plate;

[0013] The outer end of the connecting frame is fixedly installed with a spray frame, the inner side of the spray frame is fixedly connected with a spray head, the outer end of the frame is fixedly installed with a fixing frame, the interior of the fixing frame is rotatably connected with a screw rod, the bottom of the fixing frame is fixedly installed with a second motor, the output shaft of the second motor is fixedly connected with the screw rod, the inner end of the fixing frame is provided with an adjusting piece, the adjusting piece is threadedly connected with the outer surface of the screw rod, the outer end of the adjusting piece is fixedly installed with a first motor, and the output shaft of the first motor is fixedly connected with the outer end surface of the clamping frame;

[0014] A protective component is arranged inside the connecting frame, and the protective component is used for automatically avoiding the scraper when encountering hard impurities.

[0015] The above technical scheme is adopted. In this scheme, by setting a cleaning component, after the board separation is completed, each circuit board body is located at the inner end of the clamping frame, and the clamping plate can be driven to move by installing a hydraulic cylinder, so that the anti-slip pads set on the inner end surface of the clamping plate are close to the surface of each circuit board, so that they are in contact with the surface of the circuit board body and squeeze the circuit board body, and the circuit board body is clamped and limited, and multiple groups of scrapers and nozzles are installed, wherein the clamping frame can be driven to rotate by installing a motor, and then the circuit board body is turned ninety degrees, so that the scraper and the nozzle are used to rinse the surface of the circuit board body laterally. Avoid the situation that the copper impurities and sewage scraped off the surface of the circuit board body near the top of the horizontally placed circuit board body during the rinsing process fall to the surface of the circuit board body near the bottom, thereby improving the effect of rinsing the surface of each circuit board body. After the circuit board body is adjusted to a specified state, the scraper and the nozzle can just be aligned with each circuit board body, and then the scraper can be used to scrape off the excess copper impurities on the surface of each circuit board body, and the nozzle is used to rinse each circuit board body, thereby achieving all-round cleaning of multiple groups of circuit board bodies, reducing the operation steps and improving the cleaning efficiency.

[0016] A further improvement of the technical solution of the present invention is that the protective component includes a screw fixedly installed inside the rotating frame, a slider is threadedly connected to the outer surface of the screw, the outer side of the slider is in contact with the inner wall of the connecting frame, a spring is provided on the outer periphery of the screw at the outer end of the slider, and the outer end of the spring is fixedly connected to the surface of the connecting frame.

[0017] The above-mentioned technical scheme is adopted. In this scheme, in the process of using a scraper to scrape off the copper-attached impurities on the surface of the circuit board body, if the copper-attached impurities on the surface of the circuit board body are too hard, the work of the scraper is hindered, and the scraper and the circuit board body are easily bent or damaged, thereby affecting the use effect of the circuit board body. Therefore, in this application, after the circuit board body is turned over, and the circuit board body is moved to the top by using the screw and motor 2, the rotating frame and the connecting frame are rotatably connected. When the scraper contacts the copper-attached impurities on the surface of the circuit board body that are too hard, the scraper is squeezed by the impurities and can rotate to the top, and by threading the screw and the slider, the slider will slide along the outer surface of the screw, so that the scraper can automatically avoid the hard copper-attached impurities and prevent the scraper and the circuit board body from bending or damage.

[0018] A further improvement of the technical solution of the present invention is that: a slide rail is fixedly connected between both sides of the inner wall of the rotating frame, the mounting plate is slidably connected to the outside of the slide rail, and two springs are sleeved on the outside of the slide rail and on both sides of the mounting plate, the outer ends of the two springs are respectively fixedly connected to the surface of the rotating frame, and a fixing piece is slidably installed on the periphery of the screw rod at the outer end of the slider, the outer end surface of the fixing piece is in contact with the surface of the spring one, a plurality of spring pieces one are fixedly installed on the inner side of the fixing piece at the top and bottom of the rotating frame, a plurality of spring pieces two are fixedly connected to the top and bottom of the mounting plate at the outer end of the spring piece one, and a friction layer is provided on the inner side surfaces of the top and bottom of the scraper.

[0019] The above technical solution is adopted. In this solution, after the scraper automatically avoids the hard copper-attached impurities, if the impurities are not cleaned normally, the cleaning effect of the circuit board body is affected. Therefore, in this application, spring one is installed, and the spring one is squeezed when the slider slides. At this time, the spring one can reversely squeeze the slider, thereby forming a reaction force on the screw to ensure that the scraper can fit closely with the surface of the copper-attached impurities. At the same time, by installing a distance measuring sensor, the extension and contraction distance of the spring one can be detected. When the distance is detected to be greater than or less than the specified standard, the distance measuring sensor transmits the detection result to the controller, and the controller controls Braking motor 2 drives the screw rod to rotate in the opposite direction, so that the circuit board body moves back and forth toward the bottom and the top, and by providing a friction layer on the scraper surface, the friction surface of the scraper can repeatedly grind the attached copper, and by installing spring 2, the mounting plate can slide horizontally inside the rotating frame, and by installing spring pieces 1 and 2, the fixing part and spring piece 1 can be driven to move synchronously during the movement of the slider, and at this time, spring piece 1 can move spring piece 2, thereby increasing the frequency of horizontal sliding of the mounting plate, further improving the effect of the scraper grinding the attached copper impurities, and improving the effect of cleaning the surface of the circuit board body.

[0020] A further improvement of the technical solution of the present invention is that a pushing frame is fixedly installed on the outside of the rotating frame at the bottom of the spray frame, a moving plate is slidably installed inside the spray frame, a spring three is fixedly connected between the top of the moving plate and one side of the inner wall of the spray frame, a guide hole is opened inside the moving plate, the outer end surface of the moving plate extends out of the interior of the spray frame, and the outer end surface of the moving plate is opened with an inclined surface inclined toward the inner end of the inner side, the pushing frame is fitted with the inclined surface, a button one is fixedly installed on the bottom of the spray frame, a button two is fixedly connected to the bottom of the spray frame outside the button one, a button three is fixedly installed on the bottom of the spray frame outside the button two, a pressure block is slidably installed on the bottom of the spray frame at the bottom of the button one, the top of the pressure block and the surface of the button one are pressed against each other, and a ranging sensor is fixedly installed inside the connecting frame at one end of the slider.

[0021] The above technical solution is adopted. In this solution, it may take a long time to scrape and grind the hard copper-attached impurities only, which affects the cleaning effect. Therefore, in the present application, a pushing frame is installed. During the rotation of the rotating frame, the pushing frame can be synchronously driven to rotate and squeeze the moving plate. By providing an inclined surface on the surface of the moving plate, the moving plate will move toward the inside of the spray frame after being squeezed by the pushing frame, so that the opening exposed by the guide hole continues to increase, thereby increasing the water output of the nozzle, so that the nozzle sprays more cleaning liquid and rushes to the hard surface of the copper-attached impurities, so as to promote the possibility of separating the copper-attached impurities from the surface of the circuit board, and during the rotation of the pushing frame, it can The pressing block can be squeezed outward so that the pressing block is separated from the surface of button one, and button two or button three is squeezed in sequence according to the inclination angle of the push frame, that is, the thickness of the copper-attached impurity protrusion. Button one, button two and button three can control the cleaning liquid temperature of the cleaning liquid sprayed out of the nozzle, wherein pressing button one can make the cleaning liquid at room temperature, pressing button two can adjust the water temperature to warm water temperature, and pressing button three can adjust the cleaning liquid temperature to a hot cleaning liquid state, and then the cleaning liquid temperature can be adjusted according to the different thicknesses of the copper-attached impurity protrusions, so that cleaning liquids of different temperatures are sprayed onto the copper-attached surface, and the hard copper-attached impurities are softened, which is further conducive to the removal of the copper-attached impurities.

[0022] A further improvement of the technical solution of the present invention is that a piston sleeve is fixedly installed on the inner side of the connecting frame at the other end of the slider, a piston rod is slidably installed inside the piston sleeve, one end of the piston rod extends out of the interior of the piston sleeve and is fixedly connected to the other end surface of the slider, and a through hole is opened on the other end surface of the piston sleeve.

[0023] The above-mentioned technical solution is adopted. In this solution, after the scraper leaves the hard copper-attached impurities, the elastic force of spring 1 itself can quickly drive the mounting plate to rotate. At this time, the scraper is easy to scratch the surface of the circuit board body. Therefore, in this application, through the piston rod and the piston sleeve, the hydraulic rod 2 can slide with the slider, so that it slides along the inside of the piston sleeve, and by opening a through hole, the sliding speed of the piston rod can be slowed down, thereby reducing the rotation speed of the mounting plate, reducing the possibility of the scraper rotating too fast and colliding and scratching the circuit board body, and improving the protective effect on the surface of the circuit board body.

[0024] A further improvement of the technical solution of the present invention is that a plurality of circular holes are provided on the scraper surface outside the friction layer, the circular holes penetrate the top and bottom of the scraper, and a pair of inclined grooves inclined toward the bottom of the outer end are provided on the top surface of the scraper outside the friction layer.

[0025] The above-mentioned technical solution is adopted. In this solution, when the circuit board body slides toward the bottom along the scraper surface, the copper-attached impurities and sewage scraped off the surface of the circuit board body are easily accumulated on the top of the scraper, and then easily rub against the surface of the circuit board body, causing damage to the surface of the circuit board body. Therefore, in this application, by providing circular holes and inclined grooves, it is possible to facilitate sewage with copper to pass through the surface of the scraper and flow to the bottom and the outer end, thereby further improving the protective effect on the surface of the circuit board body.

[0026] A further improvement of the technical solution of the present invention is that a connecting block is fixedly connected to the inner side of the mounting plate at the bottom of the scraper, a limiting block is slidably installed inside the scraper through spring five, and the bottom of the limiting block is snap-connected to the inside of the connecting block.

[0027] The above-mentioned technical solution is adopted. In this solution, after the friction surface of the scraper is repeatedly polished against the attached copper, the scraper needs to be maintained or replaced regularly. In this application, the limit block is pulled toward the top to separate the limit block from the inside of the connecting block, so that the scraper can be disassembled, thereby facilitating the maintenance or replacement of the scraper. After the scraper is moved to the top of the connecting block and part of the scraper is inserted into the inside of the mounting plate, the limit block can be squeezed into the inside of the connecting block by the elastic force of the spring five itself, thereby realizing the installation of the scraper for easy use of the scraper.

[0028] The present invention also provides a process for omnidirectional cleaning of a printed circuit board, comprising the following steps:

[0029] S1. Separate a plurality of superimposed circuit board bodies by using a support plate and a push plate and other structures matched therewith, and clamp and limit the circuit board bodies by using a clamping frame;

[0030] S2, using motor 1 to drive the clamping frame to rotate 90 degrees toward the top of one side, so as to place multiple circuit boards vertically;

[0031] S3. Use the second motor to drive the screw rod to rotate, so that the circuit board body moves toward the top, so that the copper impurities on the surface of the circuit board body are scraped off by the scraper, and the surface of the circuit board body is rinsed by the nozzle.

[0032] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0033] 1. The present invention provides an all-round cleaning process and device for printed circuit boards. Through the mutual cooperation between a support plate, a push plate and other structures, an electric push rod is used to drive the push plate to move to the other side, and the top circuit board body is moved to the other side to the top of the support block, and the electric push rod is used to drive the support plate to move to the top, so that each circuit board body can be pushed to the top of each support block in turn, thereby automatically performing board separation processing on multiple superimposed circuit board bodies, preventing the circuit board bodies from being stacked together and inconvenient for cleaning the surfaces blocked by them, thereby improving work efficiency. In the process of moving the push plate to the other side, the lower clamping bar is extended between the two circuit board bodies, and the friction pad of the upper clamping bar is pressed against the surface of the circuit board body to separate the circuit board body placed at the top from the circuit board body at the bottom. At the same time, the roller can contact the surface of the circuit board body at the bottom and roll along the surface of the circuit board body at the bottom, thereby solving the problem that the copper attached on the surface of the two circuit board bodies scratches the surface of the circuit board bodies during relative sliding, and reducing the wear between the circuit board bodies.

[0034] 2. The present invention provides a comprehensive cleaning process and device for printed circuit boards. By setting a cleaning component, after the board separation is completed, multiple sets of scrapers and nozzles are installed, and a clamping frame is driven to rotate by a motor to flip the circuit board body ninety degrees, so that the scrapers and nozzles can be used to wash the surfaces of multiple circuit board bodies at the same time, avoiding the situation in which copper impurities and sewage scraped off the surface of the circuit board body near the top of the horizontally placed circuit board body fall to the surface of the circuit board body near the bottom during the washing process, thereby improving the effect of scraping and washing each circuit board body surface.

[0035] 3. The present invention provides a comprehensive cleaning process and device for printed circuit boards. When using a scraper to scrape away copper-attached impurities on the surface of the circuit board body, if the scraper contacts the copper-attached impurities on the surface of the circuit board body that are too hard, the scraper can automatically rotate and avoid the hard copper-attached impurities by using a screw and a slider to prevent the scraper and the circuit board body from bending or damage.

[0036] 4. The present invention provides a comprehensive cleaning process and device for printed circuit boards. During the rotation of the scraper, spring 1 can be used to form a reaction force on the screw to ensure that the friction layer of the scraper is in close contact with the surface of copper-attached impurities. At the same time, a distance measuring sensor can be used to make the circuit board body move back and forth toward the bottom and top. Through the mutual cooperation between spring 2, spring piece 1 and spring piece 2, the scraper can slide back and forth horizontally along the copper-attached surface, repeatedly grinding the hard copper, further improving the effect of grinding the copper-attached impurities and improving the effect of cleaning the surface of the circuit board body.

[0037] 5. The present invention provides a comprehensive cleaning process and device for printed circuit boards. During the rotation of the rotating frame, the pushing frame can be synchronously driven to rotate and squeeze the movable plate, so that the movable plate moves toward the inside of the spray frame, thereby increasing the water output of the nozzle, so that the nozzle sprays more cleaning liquid and rushes to the hard surface of copper-attached impurities, so as to promote the possibility of separation of copper-attached impurities from the surface of the circuit board; and during the rotation of the pushing frame, the pressing block can be squeezed outward, so that the pressing block presses button one, button two or button three respectively, and the temperature of the cleaning liquid is regulated, so that the cleaning liquid with a certain temperature is sprayed to the copper-attached surface, and the hard copper-attached impurities are softened, which is further conducive to removing the copper-attached impurities and improving the effect of cleaning the surface of the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] Figure 1 A perspective view of the present invention;

[0040] Figure 2 A perspective view of the overall second viewing angle of the present invention;

[0041] Figure 3 It is a schematic diagram of a partial structure of a frame cross section of the present invention;

[0042] Figure 4 It is a partial structural schematic diagram of the second form of the clamping frame of the present invention;

[0043] Figure 5 It is a schematic diagram of a partial structure of a cross section of a fixing frame of the present invention;

[0044] Figure 6 It is a schematic diagram of a partial cross-section structure of the clamping frame of the present invention;

[0045] Figure 7 It is a schematic diagram of the local structure of the connecting frame of the present invention;

[0046] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a connecting frame of the present invention;

[0047] Fig. 9 It is a schematic diagram of a partial exploded structure of a cross section of a connecting frame of the present invention;

[0048] Fig.10 It is a schematic diagram of the partial structure of the spray rack cross section of the present invention;

[0049] Fig.11 It is a schematic diagram of the partial structure of the briquette section of the present invention;

[0050] Fig.12 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0051] Fig.13 It is a schematic diagram of the local structure of the skateboard of the present invention;

[0052] Fig.14 For the present invention Fig. 9 Enlarged structural diagram at B in the middle.

[0053] In the figure: 1, frame; 2, electric push rod; 3, fixed frame; 4, controller; 5, support plate; 6, adjustment frame; 7, push plate; 8, clamping frame; 9, adjustment plate; 10, support block; 11, hydraulic rod 1; 12, circuit board body; 13, hydraulic rod 2; 14, connecting frame; 15, scraper; 16, clamping plate; 17, hydraulic cylinder; 18, adjustment member; 19, motor 1; 20, motor 2; 21, screw rod; 22, rotating frame; 23, mounting plate; 24, nozzle; 25, slider; 26, spring 1; 27, distance sensor; 28, spring 2; 29, movable Plug sleeve; 30, piston rod; 31, through hole; 32, round hole; 33, inclined groove; 34, screw; 35, fixing piece; 36, spring piece one; 37, spring piece two; 38, spray rack; 39, pushing rack; 40, moving plate; 41, spring three; 42, guide hole; 43, pressure block; 44, button one; 45, button two; 46, button three; 47, electric push rod; 48, slide plate; 49, upper clamping strip; 50, lower clamping strip; 51, friction pad; 52, roller; 53, spring four; 54, connecting block; 55, limit block; 56, spring five; 57, partition. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below in conjunction with embodiments:

[0055] Example 1

[0056] like Figure 1 , Figure 3 and Fig.12As shown, the present invention provides a omnidirectional cleaning process and device for printed circuit boards, including a frame 1; a controller 4 is fixedly installed at one end of the frame 1, a clamping frame 8 is arranged inside the frame 1, a plurality of circuit board bodies 12 are clamped at the inner end of the clamping frame 8, and a plurality of clamping plates 16 are slidably installed on the clamping frame 8; a hydraulic cylinder 17 is fixedly connected to the outer end of the clamping frame 8, and the inner end of the movable rod of the hydraulic cylinder 17 passes through the clamping frame 8 and is fixedly connected to the clamping plate 16; an adjusting frame 6 is slidably installed on one side of the frame 1 through a hydraulic rod 13, a support plate 5 is connected to the inside of the adjusting frame 6 through an electric push rod 2, and the support plate 5 is slidably installed in the vertical direction, a plurality of push plates 7 are arranged at intervals in the vertical direction on one side of the adjusting frame 6, an electric push rod 47 is fixedly installed on the other end of the push plate 7, and the other side of the electric push rod 47 is fixedly connected to the adjusting frame 6, and the other side of the frame 1 An adjusting plate 9 is slidably installed on the side through a hydraulic rod 11, and a plurality of supporting blocks 10 are fixedly connected to one side of the adjusting plate 9, and the tops of the supporting blocks 10 are respectively fitted with the surface of the circuit board body 12. A slide plate 48 is slidably installed on the other side of the push plate 7 through a plurality of springs 53, and a lower clamping strip 50 is fixedly connected to the other side of the slide plate 48, and a roller 52 is fixedly installed at the bottom of the lower clamping strip 50, and an upper clamping strip 49 is fixedly installed on the other side of the slide plate 48 at the top of the lower clamping strip 50, and a friction pad 51 is attached to the bottom of the upper clamping strip 49, and the lower edge of the lower clamping strip 50 is lower than the axial height of the roller 52, and a plurality of partitions 57 are arranged on the other side of the adjusting frame 6, and one side of the partition 57 corresponds to the push plate 7 one by one; a plurality of cleaning components are arranged on the top of the clamping frame 8, and the cleaning components are used to scrape and clean the copper impurities adhered to the surface of the circuit board body 12.

[0057] In this embodiment, the electric push rod 47 is installed to drive the push plate 7 to move to the other side, so that the circuit board body 12 at the top placed on the support plate 5 is moved to the other side, moved to the top of the support block 10, supported by the support block 10, and driven by the electric push rod 2 to move the support plate 5 to the top, and each of the top circuit board bodies 12 can be pushed to the top of each support block 10 in turn, so that multiple circuit board bodies 12 are automatically separated, and the circuit board bodies 12 are prevented from being stacked together and inconvenient to clean the surfaces they cover, and there is no need for operators to manually separate them, which improves work efficiency; because some copper-coated impurities remain on the surface of the circuit board bodies 12, there will be a certain gap between the circuit board bodies 12 after they are stacked, and the circuit board bodies 12 are directly pushed to the other side by the push plate 7 to separate them. During the pushing process, the copper-coated impurities are easy to scratch the surfaces of other circuit board bodies 12, so In the present application, a lower clamping bar 50 and an upper clamping bar 49 are installed, wherein they are moved to the other side so that the lower clamping bar 50 extends between the two circuit board bodies 12, thereby separating the circuit board body 12 placed at the top from the circuit board body 12 at the bottom, and during the movement, the roller 52 can contact the surface of the bottom circuit board body 12, and the roller 52 is squeezed by the circuit board body 12, and can drive the slide plate 48 to move to the top, so that the roller 52 rolls along the surface of the bottom circuit board body 12, wherein during the movement of the top circuit board body 12, the partition 57 can just intercept the other side of the remaining circuit board bodies 12 below, preventing these circuit board bodies 12 from following the top circuit board body 12 to move to the other side, thereby solving the problem that the copper attached to the surface of the two circuit board bodies 12 scratches the surface of the circuit board body 12 during relative sliding, and reducing the wear between the circuit board bodies 12.

[0058] Example 2

[0059] like Figure 1 , Figure 4 and Figure 5As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the cleaning component includes a plurality of connecting frames 14 fixedly mounted inside the frame 1, a rotating frame 22 is rotatably mounted on the inner side of the connecting frame 14, a mounting plate 23 is arranged inside the rotating frame 22, and a scraper 15 is connected to the inner side of the mounting plate 23; a spray frame 38 is fixedly mounted on the outer end of the connecting frame 14, a nozzle 24 is fixedly connected to the inner side of the spray frame 38, a fixed frame 3 is fixedly mounted on the outer end of the frame 1, a screw rod 21 is rotatably connected to the inner side of the fixed frame 3, a motor 20 is fixedly mounted on the bottom of the fixed frame 3, an output shaft of the motor 20 is fixedly connected to the screw rod 21, an adjusting member 18 is arranged on the inner end of the fixed frame 3, the adjusting member 18 is threadedly connected to the outer surface of the screw rod 21, a motor 19 is fixedly mounted on the outer end of the adjusting member 18, and the output shaft of the motor 19 is fixedly connected to the outer end surface of the clamping frame 8; a protective member is arranged inside the connecting frame 14, and the protective member is used to automatically avoid the scraper 15 when encountering hard impurities.

[0060] Since the multiple circuit board bodies 12 are separated horizontally after being divided into boards, if they are directly cleaned, the copper impurities and sewage scraped off the surface of the upper circuit board body 12 are likely to fall onto the surface of the lower circuit board body 12, thereby affecting the cleaning effect of the circuit board body 12;

[0061] By setting a cleaning component, after the board separation is completed, each circuit board body 12 is located at the inner end of the clamping frame 8, and the hydraulic cylinder 17 is installed to drive the clamping plate 16 to move, so that the anti-slip pads set on the inner end surface of the clamping plate 16 are close to the surface of each circuit board, so that they are in contact with the surface of the circuit board body 12 and squeeze the circuit board body 12, and the circuit board body 12 is clamped and limited, and multiple groups of scrapers 15 and nozzles 24 are installed, wherein the motor 19 is installed to drive the clamping frame 8 to rotate, and then the circuit board body 12 is turned over ninety degrees, so that the scraper 15 and the nozzle 24 are used to wash the surface of the circuit board body 12 later, and the horizontal placement is avoided. During the flushing process of the circuit board body 12, copper-attached impurities and sewage scraped off the surface of the circuit board body 12 near the top fall onto the surface of the circuit board body 12 near the bottom, thereby improving the flushing effect of the surface of each circuit board body 12. After the circuit board body 12 is adjusted to a specified state, the scraper 15 and the nozzle 24 can just be aligned with each circuit board body 12, and then the scraper 15 can be used to scrape off excess copper-attached impurities on the surface of each circuit board body 12, and the nozzle 24 can be used to flush each circuit board body 12, thereby achieving all-round cleaning of multiple groups of circuit board bodies 12, reducing the number of operating steps and improving cleaning efficiency.

[0062] like Figure 7 , Figure 8 and Fig. 9As shown, the protective component includes a screw 34 fixedly installed inside the rotating frame 22, the outer surface of the screw 34 is threadedly connected to a slider 25, the outer side of the slider 25 is in contact with the inner wall of the connecting frame 14, and a spring 26 is sleeved on the outer periphery of the screw 34 at the outer end of the slider 25, and the outer end of the spring 26 is fixedly connected to the surface of the connecting frame 14.

[0063] In the process of scraping off the copper-attached impurities on the surface of the circuit board body 12 by using the scraper 15, if the copper-attached impurities on the surface of the circuit board body 12 are too hard, the work of the scraper 15 is hindered, and the scraper 15 and the circuit board body 12 are easily bent or damaged, thereby affecting the use effect of the circuit board body 12;

[0064] In the present application, after the circuit board body 12 is flipped over and the circuit board body 12 is moved to the top by using the screw rod 21 and the motor 20, the rotating frame 22 is rotatably connected to the connecting frame 14. When the scraper 15 contacts the hard copper-attached impurities on the surface of the circuit board body 12, the scraper 15 is squeezed by the impurities and can rotate to the top. By threading the screw rod 34 and the slider 25, the slider 25 slides along the outer surface of the screw rod 34, so that the scraper 15 can automatically avoid the hard copper-attached impurities and prevent the scraper 15 and the circuit board body 12 from bending or damage.

[0065] like Figure 7 , Figure 8 and Fig. 9 As shown, a slide rail is fixedly connected between both sides of the inner wall of the rotating frame 22, and the mounting plate 23 is slidably connected to the outside of the slide rail. Springs 28 are sleeved on the outside of the slide rail and on both sides of the mounting plate 23. The outer ends of the springs 28 are respectively fixedly connected to the surface of the rotating frame 22. A fixing piece 35 is slidably installed on the periphery of the screw rod 34 at the outer end of the slider 25. The outer end surface of the fixing piece 35 fits with the surface of the spring 1 26. A plurality of spring pieces 1 36 are fixedly installed on the inner side of the fixing piece 35 at the top and bottom of the rotating frame 22. A plurality of spring pieces 2 37 are fixedly connected to the top and bottom of the mounting plate 23 at the outer ends of the spring pieces 1 36. A friction layer is provided on the inner side surfaces of the top and bottom of the scraper 15.

[0066] After the scraper 15 automatically avoids the hard copper-attached impurities, the impurities are not cleaned normally, which affects the cleaning effect of the circuit board body 12;

[0067] In the present application, by installing a spring 26, the spring 26 will be squeezed when the slider 25 slides. At this time, the spring 26 can squeeze the slider 25 in the opposite direction, thereby forming a reaction force on the screw 34, ensuring that the scraper 15 can fit tightly with the surface of the copper impurities. At the same time, by installing a distance sensor 27, the telescopic distance of the spring 26 can be detected. When it is detected that the distance is greater than or less than the specified standard, the distance sensor 27 transmits the detection result to the controller 4, and the controller 4 controls the motor 20 to drive the screw 21 to rotate in the opposite direction, so that the circuit board body 12 moves back and forth to the bottom and the top. In addition, by providing a friction layer on the surface of the scraper 15, the friction surface of the scraper 15 can repeatedly grind the attached copper. By installing the second spring 28, the mounting plate 23 can slide horizontally inside the rotating frame 22. By installing the spring piece 1 36 and the spring piece 2 37, during the movement of the slider 25, the fixing member 35 and the spring piece 1 36 can be driven to move synchronously. At this time, the spring piece 1 36 can move the spring piece 2 37, thereby increasing the frequency of horizontal sliding of the mounting plate 23, further improving the effect of the scraper 15 on grinding the attached copper impurities, and improving the effect of cleaning the surface of the circuit board body 12.

[0068] like Figure 7 , Fig.10 and Fig.11 As shown, a pushing frame 39 is fixedly installed on the outside of the rotating frame 22 at the bottom of the spray frame 38, a moving plate 40 is slidably installed inside the spray frame 38, a spring three 41 is fixedly connected between the top of the moving plate 40 and one side of the inner wall of the spray frame 38, a guide hole 42 is opened inside the moving plate 40, the outer end surface of the moving plate 40 extends out of the interior of the spray frame 38, and the outer end surface of the moving plate 40 is opened with an inclined surface inclined toward the inner end of the inner side, the pushing frame 39 is in contact with the inclined surface, a button 1 44 is fixedly installed on the bottom of the spray frame 38, a button 2 45 is fixedly connected to the bottom of the spray frame 38 outside the button 1 44, a button 3 46 is fixedly installed on the bottom of the spray frame 38 outside the button 2 45, a pressing block 43 is slidably installed on the bottom of the spray frame 38 at the bottom of the button 1 44, the top of the pressing block 43 and the surface of the button 1 44 are pressed against each other, and a distance measuring sensor 27 is fixedly installed inside the connecting frame 14 at one end of the slider 25.

[0069] Scraping and grinding hard copper impurities may take a long time and affect the cleaning effect;

[0070] In the present application, by installing the push frame 39, during the rotation of the rotating frame 22, the push frame 39 can be synchronously driven to rotate and squeeze the movable plate 40, wherein by providing an inclined surface on the surface of the movable plate 40, the movable plate 40 will move toward the inside of the spray frame 38 after being squeezed by the push frame 39, so that the opening exposed by the guide hole 42 is continuously enlarged, thereby increasing the water output of the nozzle 24, so that the nozzle 24 sprays more cleaning liquid and rushes to the hard surface of the copper-attached impurities, so as to promote the possibility of separating the copper-attached impurities from the surface of the circuit board, and during the rotation of the push frame 39, the pressing block 43 can be squeezed outward, so that the pressing block 43 and the button 44 are in contact with each other. The surfaces are separated, and button two 45 or button three 46 are squeezed in sequence according to the inclination angle of the push frame 39, that is, the thickness of the copper-attached impurity protrusion. Button one 44, button two 45 and button three 46 can control the cleaning liquid temperature of the cleaning liquid sprayed out of the nozzle 24, wherein pressing button one 44 can make the cleaning liquid at room temperature, pressing button two 45 can adjust the water temperature to warm water temperature, and pressing button three 46 can adjust the cleaning liquid temperature to a hot cleaning liquid state, and then the cleaning liquid temperature can be adjusted according to the different thicknesses of the copper-attached impurity protrusions, so that cleaning liquids of different temperatures are sprayed onto the copper-attached surface, and the hard copper-attached impurities are softened, which is further beneficial to the removal of the copper-attached impurities.

[0071] like Figure 7 and Figure 8 As shown, a piston sleeve 29 is fixedly installed on the inner side of the connecting frame 14 at the other end of the slider 25, and a piston rod 30 is slidably installed inside the piston sleeve 29. One end of the piston rod 30 extends out of the interior of the piston sleeve 29 and is fixedly connected to the other end surface of the slider 25. A through hole 31 is opened on the other end surface of the piston sleeve 29.

[0072] When the scraper 15 leaves the hard copper impurities, the spring 1 26 can quickly drive the mounting plate 23 to rotate due to its own elastic force. At this time, the scraper 15 is easy to scratch the surface of the circuit board body 12;

[0073] In the present application, through the piston rod 30 and the piston sleeve 29, the hydraulic rod 13 can slide along the slider 25, so that it slides along the inside of the piston sleeve 29, and by opening the through hole 31, the sliding speed of the piston rod 30 can be slowed down, thereby reducing the rotation speed of the mounting plate 23, reducing the possibility of the scraper 15 rotating too fast and colliding and scratching the circuit board body 12, and improving the protective effect on the surface of the circuit board body 12.

[0074] like Figure 7 , Figure 8 and Fig. 9As shown, a plurality of circular holes 32 are provided on the surface of the scraper 15 outside the friction layer, and the circular holes 32 pass through the top and bottom of the scraper 15. A pair of inclined grooves 33 inclined toward the bottom of the outer end are provided on the top surface of the scraper 15 outside the friction layer.

[0075] Since the circuit board body 12 needs to slide toward the bottom along the surface of the scraper 15, the copper-attached impurities and sewage scraped off the surface of the circuit board body 12 are likely to accumulate on the top of the scraper 15, and then easily rub against the surface of the circuit board body 12, causing damage to the surface of the circuit board body 12;

[0076] In the present application, by providing the circular hole 32 and the inclined groove 33 , wastewater with copper can conveniently pass through the surface of the scraper 15 and flow down to the bottom and the outer end, thereby further improving the protective effect on the surface of the circuit board body 12 .

[0077] Example 3

[0078] like Figure 1 , Fig. 9 and Fig.14 As shown, based on Example 2, the present invention provides a technical solution: preferably, a connecting block 54 is fixedly connected to the inner side of the mounting plate 23 at the bottom of the scraper 15, and a limiting block 55 is slidably installed inside the scraper 15 through a spring 56, and the bottom of the limiting block 55 is snap-connected to the inside of the connecting block 54.

[0079] Since the friction surface of the scraper 15 needs to be repeatedly polished after contacting the copper impurities, the surface of the scraper 15 is easily worn, and the use effect of the friction surface will be reduced after long-term use;

[0080] In the present application, the limit block 55 is pulled toward the top to separate the limit block 55 from the inside of the connecting block 54, so that the scraper 15 can be disassembled, thereby facilitating the maintenance or replacement of the scraper 15. After the scraper 15 is moved to the top of the connecting block 54 and part of the scraper 15 is inserted into the inside of the mounting plate 23, the limit block 55 can be squeezed into the inside of the connecting block 54 by the elastic force of the spring 5 56 itself, thereby realizing the installation of the scraper 15 for the convenience of use of the scraper 15.

[0081] The present invention also provides a process for omnidirectional cleaning of a printed circuit board, comprising the following steps:

[0082] S1, using the support plate 5 and the push plate 7 and other structures matched therewith to separate the multiple superimposed circuit board bodies 12, and using the clamping frame 8 to clamp and limit the circuit board bodies 12;

[0083] S2, using a motor 19 to drive the clamping frame 8 to rotate 90 degrees toward the top of one side, and placing multiple circuit boards vertically;

[0084] S3. The motor 20 is used to drive the screw rod 21 to rotate, so that the circuit board body 12 moves toward the top, and the copper impurities on the surface of the circuit board body 12 are scraped off by the scraper 15, and the surface of the circuit board body 12 is rinsed by the nozzle 24.

[0085] The working principle of the omnidirectional cleaning process and device for printed circuit boards is described in detail below.

[0086] like Figure 1-Figure 14As shown, the operator places the stacked multi-layer circuit board body 12 on the top of the support plate 5, and then controls the electric push rod 47 to drive the push plate 7 to move, and at the same time pushes the circuit board body 12 to the other side, so that the lower clamping strip 50 extends between the two circuit board bodies 12, and at the same time makes the upper clamping strip 49 and the surface of the top circuit board body 12 squeeze each other, thereby separating the circuit board body 12 placed on the top from the circuit board body 12 at the bottom, and the roller 52 contacts and squeezes the surface of the bottom circuit board body 12, and the roller 52 can roll along the surface of the bottom circuit board body 12, and at the same time the partition 57 can intercept the other side of the remaining circuit board body 12 below, and then move the circuit board body 12 to the top of the support block 10, and use the support block 10 to support it. Then, the electric push rod 2 is used to drive the support plate 5 to move to the top, and the push plate 7 can be used to push the circuit board body 12 to the top of each support block 10 in turn. After the board separation is completed, the operator controls the hydraulic cylinder 17 to drive the clamping plate 16 to move, so that the anti-slip pad at the inner end of the clamping plate 16 approaches and squeezes each circuit board body 12, clamps the circuit board body 12 to limit the position, and then controls the hydraulic rod 2 13 and the hydraulic rod 1 11 to drive the adjustment frame 6 and the adjustment plate 9 to one side and the other side respectively, so that they are away from the circuit board body 12, and reserve space for the subsequent flipping operation of the circuit board body 12, and then uses the motor 19 to drive the clamping frame 8 to rotate, so that the circuit board body 12 is flipped to a vertical state, and each circuit board body 12 is aligned with the inner side of each two scrapers 15, and the operator The operator connects and fixes the external cleaning liquid supply device to each spray rack 38, and then uses the motor 20 to drive the screw rod 21 to rotate, so that the adjustment member 18 moves to the top, and at the same time drives the circuit board body 12 to slide along the surface of the scraper 15. The scraper 15 can be used to scrape off the excess copper impurities adhering to the surface of the circuit board body 12, and at the same time, the nozzle 24 is used to spray the cleaning liquid to rinse the surface of the circuit board. During the scraping and washing process, if the copper impurities adhering to the surface of the circuit board body 12 are too hard, the scraper 15 will be squeezed and rotated to the top, and at the same time drive the screw 34 to rotate. At this time, the slider 25 will slide along the outer surface of the screw 34 to facilitate the scraper 15 to automatically avoid the hard copper impurities. At the same time, the slider 25 will squeeze the spring 1 26 when it slides. The spring 1 26 reversely squeezes the slider 25, so that the friction layer of the scraper 15 fits tightly with the surface of the copper impurities. During the movement of the slider 25, the spring 1 36 can move the spring 2 37 and cooperate with the spring 2 28 to make the scraper 15 slide horizontally along the copper surface to grind the copper impurities. At the same time, the distance sensor 27 detects that the telescopic distance of the spring 1 26 is greater than or less than the specified standard, and the controller 4 controls the motor 2 20 to drive the screw 21 to rotate in the opposite direction, so that the circuit board body 12 moves back and forth to the bottom and the top, and during the rotation of the rotating frame 22, it can synchronously drive the push frame 39 to rotate and squeeze the moving plate 40, and the moving plate 40 moves toward the inside of the spray frame 38, continuously expanding the opening exposed by the guide hole 42.The nozzle 24 sprays more cleaning liquid and rushes to the hard copper impurity surface to promote the possibility of separating the copper impurities from the circuit board surface. The push frame 39 can squeeze the pressing block 43 outward during the rotation process to separate the pressing block 43 from the button 1 44 surface. According to the different thicknesses of the copper impurity protrusions, the button 2 45 or the button 3 46 can be squeezed in turn, so that cleaning liquids of different temperatures are sprayed to the copper surface to soften the hard copper impurities, which is further conducive to removing the copper impurities. When the copper is completely removed, the distance sensor 27 detects that the extension distance of the spring 1 26 returns to the specified standard, and the controller 4 controls the motor 2 20 to drive the screw 21 to rotate, so that the circuit board body 12 moves normally to the top, and the scraper 15 and the nozzle 24 continue to be used to scrape the surface of the circuit board body 12 in all directions.

[0087] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A printed circuit board omnidirectional cleaning device, comprising a frame (1); characterized in that: A controller (4) is fixedly mounted on one end of the frame (1); a clamping frame (8) is arranged inside the frame (1); a plurality of circuit board bodies (12) are clamped on the inner end of the clamping frame (8); a plurality of clamping plates (16) are slidably mounted on the clamping frame (8); a hydraulic cylinder (17) is fixedly connected to the outer end of the clamping frame (8); the inner end of a movable rod of the hydraulic cylinder (17) passes through the clamping frame (8) and is fixedly connected to the clamping plate (16); An adjustment frame (6) is slidably mounted on one side of the frame (1) via a second hydraulic rod (13); a support plate (5) is connected to the inside of the adjustment frame (6) via an electric push rod (2); the support plate (5) is slidably mounted in a vertical direction; a plurality of push plates (7) are arranged at intervals in a vertical direction on one side of the adjustment frame (6); an electric push rod (47) is fixedly mounted on the other end of the push plate (7); the other side of the electric push rod (47) is fixedly connected to the adjustment frame (6); an adjustment plate (9) is slidably mounted on the other side of the frame (1) via a first hydraulic rod (11); a plurality of support blocks (10) are fixedly connected to one side of the adjustment plate (9); the tops of the support blocks (10) are respectively connected to the support blocks (10) and the support blocks (10) are connected to the support blocks (10) and the support blocks (10) are connected to the support blocks (10) and the support blocks (10) are connected to the support blocks (10) and the support blocks (10) are connected to the support blocks (10) and the support blocks (10) are connected to the support blocks (10) and the support blocks (10) are connected to the support plates (10) and the support plates ... The surfaces of the circuit board body (12) are fitted together, a slide plate (48) is slidably mounted on the other side of the push plate (7) through a plurality of springs (53), a lower clamping strip (50) is fixedly connected to the other side of the slide plate (48), a roller (52) is fixedly mounted on the bottom of the lower clamping strip (50), an upper clamping strip (49) is fixedly mounted on the other side of the slide plate (48) at the top of the lower clamping strip (50), a friction pad (51) is attached to the bottom of the upper clamping strip (49), the lower edge of the lower clamping strip (50) is lower than the axis height of the roller (52), a plurality of partitions (57) are arranged on the other side of the adjustment frame (6), and one side of the partitions (57) corresponds one to one with the push plate (7); A plurality of cleaning components are arranged on the top of the clamping frame (8), and the cleaning components are used to scrape and clean copper-attached impurities adhering to the surface of the circuit board body (12).

2. The omnidirectional cleaning device for printed circuit boards according to claim 1, characterized in that: The cleaning component comprises a plurality of connecting frames (14) fixedly mounted inside the frame (1), a rotating frame (22) being rotatably mounted inside the connecting frame (14), a mounting plate (23) being arranged inside the rotating frame (22), and a scraper (15) being connected inside the mounting plate (23); A spray frame (38) is fixedly mounted on the outer end of the connecting frame (14), a spray head (24) is fixedly connected to the inner side of the spray frame (38), a fixing frame (3) is fixedly mounted on the outer end of the frame (1), a screw rod (21) is rotatably connected to the interior of the fixing frame (3), a second motor (20) is fixedly mounted on the bottom of the fixing frame (3), an output shaft of the second motor (20) is fixedly connected to the screw rod (21), an adjusting member (18) is provided on the inner end of the fixing frame (3), the adjusting member (18) is threadedly connected to the outer surface of the screw rod (21), a first motor (19) is fixedly mounted on the outer end of the adjusting member (18), and the output shaft of the first motor (19) is fixedly connected to the outer end surface of the clamping frame (8); A protective component is provided inside the connecting frame (14), and the protective component is used to automatically avoid the scraper (15) when encountering hard impurities.

3. The omnidirectional cleaning device for printed circuit boards according to claim 2, characterized in that: The protective component comprises a screw rod (34) fixedly mounted inside the rotating frame (22); a slider (25) is threadedly connected to the outer surface of the screw rod (34); the outer side of the slider (25) is in contact with the inner wall of the connecting frame (14); a spring (26) is sleeved on the outer periphery of the screw rod (34) at the outer end of the slider (25); the outer end of the spring (26) is fixedly connected to the surface of the connecting frame (14).

4. The omnidirectional cleaning device for printed circuit boards according to claim 3, characterized in that: A slide rail is fixedly connected between both sides of the inner wall of the rotating frame (22); the mounting plate (23) is slidably connected to the outside of the slide rail; springs (28) are sleeved on the outside of the slide rail and on both sides of the mounting plate (23); the outer ends of the springs (28) are respectively fixedly connected to the surface of the rotating frame (22); a fixing member (35) is slidably installed on the periphery of the screw rod (34) at the outer end of the slider (25); the outer end surface of the fixing member (35) is in contact with the surface of the spring (26); a plurality of spring pieces (36) are fixedly installed on the inner side of the fixing member (35) at the top and bottom of the rotating frame (22); a plurality of spring pieces (37) are fixedly connected to the top and bottom of the mounting plate (23) at the outer ends of the spring pieces (36); and a friction layer is provided on the inner side surfaces of the top and bottom of the scraper (15).

5. The omnidirectional cleaning device for printed circuit boards according to claim 4, characterized in that: A push frame (39) is fixedly mounted on the outside of the rotating frame (22) at the bottom of the spray frame (38), a movable plate (40) is slidably mounted inside the spray frame (38), a spring (41) is fixedly connected between the top of the movable plate (40) and one side of the inner wall of the spray frame (38), a guide hole (42) is provided inside the movable plate (40), an outer end surface of the movable plate (40) extends out of the interior of the spray frame (38), and an inclined surface inclined toward the inner end of the inner side is provided on the outer end surface of the movable plate (40), and the push frame (39) is in contact with the inclined surface. A button 1 (44) is fixedly mounted on the bottom of the spray frame (38), a button 2 (45) is fixedly connected to the bottom of the spray frame (38) outside the button 1 (44), a button 3 (46) is fixedly mounted on the bottom of the spray frame (38) outside the button 2 (45), a pressure block (43) is slidably mounted on the bottom of the spray frame (38) at the bottom of the button 1 (44), the top of the pressure block (43) and the surface of the button 1 (44) are pressed against each other, and a distance measuring sensor (27) is fixedly mounted inside the connecting frame (14) at one end of the slider (25).

6. The omnidirectional cleaning device for printed circuit boards according to claim 5, characterized in that: A piston sleeve (29) is fixedly mounted on the inner side of the connecting frame (14) at the other end of the slider (25), and a piston rod (30) is slidably mounted inside the piston sleeve (29). One end of the piston rod (30) extends out of the interior of the piston sleeve (29) and is fixedly connected to the other end surface of the slider (25). A through hole (31) is formed on the other end surface of the piston sleeve (29).

7. The omnidirectional cleaning device for printed circuit boards according to claim 6, characterized in that: A plurality of circular holes (32) are provided on the surface of the scraper (15) outside the friction layer. The circular holes (32) penetrate the top and bottom of the scraper (15). A pair of inclined grooves (33) inclined toward the bottom of the outer end are provided on the top surface of the scraper (15) outside the friction layer.

8. The omnidirectional cleaning device for printed circuit boards according to claim 7, characterized in that: A connecting block (54) is fixedly connected to the inner side of the mounting plate (23) at the bottom of the scraper (15), and a limit block (55) is slidably mounted inside the scraper (15) via a spring five (56), and the bottom of the limit block (55) is snap-fitted to the inside of the connecting block (54).

9. A printed circuit board omnidirectional cleaning process, applicable to the printed circuit board omnidirectional cleaning device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Using a support plate (5) and a push plate (7) and other structures matched therewith to separate a plurality of superimposed circuit board bodies (12), and using a clamping frame (8) to clamp and limit the circuit board bodies (12); S2, using motor 1 (19) to drive the clamping frame (8) to rotate 90 degrees toward the top of one side, so as to place the multiple circuit boards vertically; S3. Using the second motor (20) to drive the screw rod (21) to rotate, the circuit board body (12) is moved toward the top, and the copper impurities on the surface of the circuit board body (12) are scraped off by the scraper (15), and the surface of the circuit board body (12) is rinsed by the nozzle (24).

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