Cleaning clamp and cleaning system for PCB (Printed Circuit Board)

Abstract

The utility model discloses a cleaning clamp and a cleaning system for a PCB (Printed Circuit Board). The cleaning clamp comprises a frame; m clamping channels for placing the PCBs are arranged on the frame; clamping grooves are formed in the two sides of each clamping channel; m is an integer greater than 0. When cleaning is carried out, the PCBs are sequentially placed in the clamping channels, the PCBs are clamped in the clamping grooves, and then the PCBs are placed in the cleaning line to be cleaned. The cleaning clamp can contain a plurality of PCBs at a time, the cleaning efficiency of the PCBs is improved, the adjacent PCBs are spaced by a certain distance and are arranged in order, and the cleanliness of the cleaned PCBs is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB board production technical field especially relates to a kind of cleaning fixture and cleaning system of PCB board. BACKGROUND

[0002] In PCB product, some PCB board size is very small, cleaning is easy to drop into horizontal line, often need to clean with the aid of some tools. Now traditional cleaning mode includes manually air gun blows dust or with adhesive tape to stick multiple PCB board, put into horizontal cleaning line cleaning. When manually air gun blows dust, air gun spray force is not easy to adjust, cannot completely remove dust. When cleaning with adhesive tape to stick multiple PCB board, the place where adhesive tape sticks cannot be cleaned, cannot completely remove dust;Meanwhile, the part where adhesive tape sticks can leave adhesive, cannot be removed completely. SUMMARY

[0003] In view of this, the present application aims to at least solve the problems in the related art to some extent, and provides a cleaning fixture for PCB board, comprising: a frame;M clamping channels for placing the PCB board are arranged on the frame;Clamping grooves are arranged on both sides of each clamping channel;M is an integer greater than 0.

[0004] When cleaning, the PCB board is sequentially placed in the clamping channel, and the PCB board is clamped in the clamping groove, and there is a certain interval between adjacent PCB boards, so that each PCB board can be cleaned in all directions. After being placed in the cleaning line for cleaning, the PCB board size is not easy to drop into the horizontal line under the assistance of the clamp, and the cleaning effect is greatly improved. For the part of the PCB board clamped by the cleaning fixture, the PCB board can be taken out from the cleaning fixture after the main part of the PCB board is cleaned, and local cleaning is carried out in a targeted manner. Compared with the cleaning method of adhesive tape sticking, the cleaning method of the cleaning fixture of the present application not only does not leave the adhesive that cannot be removed, but also the clamp can accommodate several PCB boards at a time, improving the cleaning efficiency of the PCB board. Adjacent PCB boards have a certain interval and are arranged in order, so as to ensure the cleanliness of the PCB board after cleaning.

[0005] In the preferred technical solution of the utility model, at least one auxiliary strip is slidably connected to the frame;The clamping grooves are arranged on both sides of the auxiliary strip and the inner edge of the frame parallel to the auxiliary strip.

[0006] Different PCB board size has different, need first adjust the width of the clamping channel before fixing the PCB board in the clamping groove on both sides of the clamping channel, the width of the clamping channel can be adjusted according to the length of the specific PCB board. Specifically, the frame can be set to a rectangle with a length-width ratio of 8:7, the four inward edges of the frame are in a groove form, the two ends of the auxiliary strip can be designed as pulleys for easy sliding in the groove of the frame. The edge of the frame perpendicular to the auxiliary strip is designed as an openable rotating edge, when placing the PCB board, open the rotating edge and slide the PCB board along the clamping groove to the appropriate position, then adjust the position of the auxiliary strip on the frame so that the PCB board can be fixed in the clamping groove of the clamp, thus the width of the clamping channel is determined. Then start placing the second PCB board, push it from the bottom to the appropriate position, and keep a certain distance between the adjacent PCB boards for easy thorough cleaning of the PCB boards, then place the third PCB board, and so on, after placing all the PCB boards, close the rotating edge for cleaning. After cleaning, open the rotating edge and slide the PCB boards out of the clamping groove one by one.

[0007] Setting the rotating edge is beneficial for efficient placing or taking out of the PCB board, and in practice, the rotating edge can not be set, the position of the auxiliary strip is slid to make the width of the clamping channel greater than the length of the PCB board, so that the PCB board can be placed in or taken out of the cleaning clamp.

[0008] In the preferred technical scheme of the utility model, at least one limiting piece is arranged on the frame; one end of the limiting piece is fixedly connected with the frame; the other end of the limiting piece is provided with a locking structure for fixing the auxiliary strip.

[0009] After the width of the clamping channel is adjusted by the auxiliary strip, the auxiliary strip is limited in the fixed position of the frame by the limiting piece, so that the auxiliary strip is prevented from continuing to slide, the stability of the PCB board in the clamping groove is improved, the PCB board is prevented from falling off the auxiliary strip, and the cleaning effect of the PCB board is reduced.

[0010] In the preferred technical scheme of the utility model, the limiting piece comprises a movable leaf; one end of the movable leaf is fixedly connected with the frame; the other end of the movable leaf is provided with two magnetite pieces; the two ends of the auxiliary strip are provided with adsorbing iron pieces.

[0011] Specifically, after the width of the clamping channel is adjusted by the auxiliary strip, the movable leaf is buckled on the frame, the movable leaf is fixed on the frame by means of nails, then the adsorbing iron pieces at the two ends of the auxiliary strip are magnetically fixed between the two magnetite pieces, the auxiliary strip is limited, and the auxiliary strip is prevented from continuing to slide on the frame. After the cleaning of the PCB board is completed, the adsorbing iron pieces are separated from the two magnetite pieces, the auxiliary strip is slid, the width of the clamping channel is greater than the length of the PCB board, the PCB board is quickly taken out of the clamping groove on the auxiliary strip, or the PCB board is sequentially slid out by opening the rotating edge of the frame.

[0012] In the preferable technical scheme of the utility model, at least one fastener for adjusting the width of the clamping groove is arranged on the frame.

[0013] The fastener can adjust the width of the clamping groove by adjusting the tightness, and the widened clamping groove is beneficial to the PCB board, and the narrowed clamping groove can increase the friction between the PCB board and the clamping groove. After the PCB board is placed in the clamping groove, the fastener is adjusted to make the width of the clamping groove smaller, so that the clamping groove is tightly abutted against the PCB board, the friction of the PCB board in the clamping groove is increased, the stability of the PCB board in the clamping groove is improved, and the PCB board is prevented from loosening or falling off in the clamping groove during cleaning.

[0014] In the preferable technical scheme of the utility model, the fastener comprises a plum blossom screw; one end of the plum blossom screw is fixedly connected to one side wall of the clamping groove; the other end of the plum blossom screw is threadedly connected to a nut through the other side wall of the clamping groove.

[0015] The plum blossom screw has a preferable fastening effect. Specifically, two plum blossom screws are arranged on each clamping edge of the frame for adjustment. When the width of the clamping groove needs to be increased, the nut is rotated to make the length of the screw rod in the clamping groove longer, the extrusion force on the clamping groove is smaller, the clamping groove is widened, and the PCB board can be easily placed in the clamping groove. After the PCB board is placed, the nut is rotated in the opposite direction to make the length of the screw rod in the clamping groove shorter until the clamping groove is tightly abutted against the PCB board, the friction between the PCB board and the clamping groove is increased, the stability of the PCB board in the clamping groove is improved, and the cleaning effect and efficiency are improved.

[0016] The main function of the fastener is to adjust the tightness of the combination of the clamping groove and the PCB board, which is beneficial to stably fixing the PCB board in the clamping groove. The specific structure can also refer to other structures in the prior art, such as a clamp, a clamping plate and the like.

[0017] In the preferable technical scheme of the utility model, a plurality of fixing members are further arranged on the frame, and the fixing members are arranged on the side edges of the auxiliary strips.

[0018] After the PCB board is placed in the clamping groove, the fixing members are arranged on the side edges of the PCB board. During cleaning of the PCB board, the fixing members can hinder the movement of the PCB board, prevent the PCB board from separating from the clamping groove, fix the PCB board on the clamp, and achieve a good cleaning effect.

[0019] In the preferable technical scheme of the utility model, the fixing member comprises a Teflon rope, the Teflon rope is arranged on the frame, the Teflon rope is arranged on the side surface of the auxiliary strip, and the Teflon rope is perpendicular to the auxiliary strip.

[0020] The Teflon rope is made of polytetrafluoroethylene fiber, can withstand the action of strong acid, strong base, strong oxidant and various organic solvents, avoids the erosion of cleaning agent, has high durability, and the spacing between adjacent Teflon ropes and the frame width ratio is 1:21. The Teflon ropes can prevent the PCB from falling off due to the impact of the cleaning liquid when cleaning the PCB, and better fix the PCB in the clamp.

[0021] The fixing member is not limited to the Teflon rope, and the specific structure can refer to other acid and alkali resistant ropes in the prior art.

[0022] In the preferred technical scheme of the utility model, still include clamping hinge, clamping hinge with one side of frame rotatory connection, clamping hinge and the opening and closing edge of frame all are provided with the buckle piece of adaptation, be provided with a plurality of fixed strips on the clamping hinge, the auxiliary strip is located the middle of teflon rope and fixed strip.

[0023] The fixed strip on the clamping hinge is Teflon rope, and has the same direction as the Teflon rope on the frame. The two buckle pieces on the clamping hinge and the frame are magnetic attraction structures that attract each other. When placing the PCB, rotate the clamping hinge relative to the frame to open, place all the PCBs in the corresponding clamping grooves in turn, and then make the clamping hinge and the frame magnetically attract each other to close. After closing, the PCBs can be cleaned. When cleaning, the Teflon ropes on both sides of the PCBs fix the PCBs in the middle, reducing the displacement space allowance of the PCBs, improving the stability and cleaning effect of the PCBs on the clamp. After cleaning, the magnetic attraction structure is released to rotate the clamping hinge relative to the frame to open, and the cleaned PCBs can be taken out.

[0024] The application also provides a PCB cleaning system, which comprises the PCB cleaning clamp.

[0025] The cleaning system structure of the application does not need to be redesigned, and only needs to place the PCBs in the cleaning clamp in turn, and then place the cleaning clamp on the cleaning line of the cleaning system for cleaning. The cleaning clamp can clamp several PCBs for cleaning at a time, improving the cleaning efficiency and cleaning effect of the cleaning system on the PCBs.

[0026] Compared with the prior art, the above technical scheme provided by the embodiment of the present application has the following advantages: when cleaning, the PCB boards are sequentially placed in the clamping channels, and the PCB boards are clamped in the clamping grooves, and there is a certain interval between adjacent PCB boards, so that each PCB board can be cleaned in all directions. After being placed on the cleaning line for cleaning, the PCB board is not easy to fall into the horizontal line with the assistance of the clamp, and the cleaning effect is greatly improved. For the part of the PCB board clamped by the cleaning clamp, the PCB board can be taken out from the cleaning clamp after the main part of the PCB board is cleaned, and the local cleaning is carried out in a targeted manner. Compared with the cleaning method of the adhesive tape, the cleaning method of the cleaning clamp of the present application not only does not leave the adhesive that cannot be removed, but also the clamp can accommodate several PCB boards at a time, thereby improving the cleaning efficiency of the PCB board, and the adjacent PCB boards are arranged in a certain interval and in order, so that the cleanliness of the cleaned PCB board is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0029] In the drawings:

[0030] Figure 1 It is a schematic view of a PCB cleaning clamp according to the present application, wherein W is the frame width, and L is the frame length.

[0031] Figure 2 It is a schematic view of a frame opening according to the present application.

[0032] Figure 3 It is a schematic view of a clamping groove according to the present application.

[0033] Figure 4 It is a schematic view of a movable blade according to the present application.

[0034] Figure 5 It is a schematic view of a PCB cleaning clamp according to the present application.

[0035] Reference signs:

[0036] 10, frame; 101, star screw; 102, rotating edge; 11, clamping groove; 12, auxiliary strip; 13, movable leaf; 131, magnet sheet; 14, Teflon rope; 15, clamping hinge; 151, buckling member; 16, PCB board. DETAILED DESCRIPTION

[0037] In order to make the technical features, objectives and effects of the present application clearer, the specific embodiments of the present application will be described in detail below. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical solutions, and cannot be understood as indicating that the indicated mechanisms or elements must have a particular direction, therefore, it cannot be understood as a limitation on the present application.

[0038] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" above the other element, or there can be one or more intervening elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the following description, specific details are presented in order to facilitate a thorough understanding of the embodiments of the present application, but it should be understood that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, mechanisms, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0040] Example 1

[0041] As Figures 1-4As shown, the PCB cleaning fixture provided by the application comprises a frame 10, M clamping channels for placing the PCB 16 are arranged on the frame 10, clamping grooves 11 are arranged on both sides of each clamping channel, and M is an integer greater than 0.

[0042] In the embodiment, four clamping channels are arranged, when cleaning, the PCB 16 is sequentially placed in the clamping channels, and the PCB 16 is clamped in the clamping grooves 11, and a certain interval is provided between adjacent PCBs 16, so that the PCB 16 can be cleaned in all directions. After being placed on the cleaning line for cleaning, under the assistance of the fixture, the PCB 16 is not easy to fall into the horizontal line, and the cleaning effect is greatly improved. For the part of the PCB 16 clamped by the cleaning fixture, the PCB 16 can be taken out from the cleaning fixture after the main part of the PCB 16 is cleaned, and local cleaning is carried out in a targeted manner. Compared with the cleaning method of adhesive tape adhesion, the cleaning method of the cleaning fixture provided by the application not only does not leave the adhesive that cannot be removed, but also the fixture can accommodate several PCBs 16 at a time, thereby improving the cleaning efficiency of the PCB 16, and the adjacent PCBs 16 are arranged in a certain interval and in order, thereby ensuring the cleanliness of the PCB 16 after cleaning.

[0043] Preferably, at least one auxiliary strip 12 is slidably connected to the frame 10, and the clamping grooves 11 are arranged on both sides of the auxiliary strip 12 and the inner edge of the frame 10 parallel to the auxiliary strip 12.

[0044] Different PCBs 16 have different sizes, and before the PCB 16 is fixed in the clamping grooves 11 on both sides of the clamping channel, the width of the clamping channel needs to be adjusted, and the width of the clamping channel can be adjusted according to the length of the specific PCB 16. Specifically, the frame 10 can be arranged in a rectangular shape with a length-width ratio of 8:7, the four edges of the frame 10 towards the inside are in a groove type, there are three auxiliary strips 12, and the two ends of the auxiliary strip 12 can be designed as pulleys to facilitate sliding in the groove of the frame 10. Figure 2 As shown, one edge of the frame 10 perpendicular to the auxiliary strip 12 is designed as an openable rotating edge 102, when the PCB 16 needs to be placed, the rotating edge 102 is opened, the PCB 16 is slid along the clamping groove 11 to the appropriate position, the position of the auxiliary strip 12 on the frame 10 is adjusted, and the PCB 16 is fixed in the clamping groove 11 on the fixture. In this way, the width of the clamping channel is determined. Then the second PCB 16 is placed, and the PCB 16 is pushed to the appropriate position from bottom to top, and a certain interval is required between adjacent PCBs 16 to facilitate thorough cleaning of the PCB 16. Then the third PCB 16 is placed, and the process is repeated. After all the PCBs 16 are placed, the rotating edge 102 is closed for cleaning. After cleaning, the rotating edge 102 is opened again, and the PCB 16 is sequentially slid out along the clamping groove 11.

[0045] Setting the rotating edge 102 facilitates the efficient placement or removal of the PCB board 16. In practice, the rotating edge 102 can also be omitted. By adjusting the position of the sliding auxiliary bar 12, the width of the clamping channel can be made greater than the length of the PCB board 16, allowing the PCB board 16 to be placed into or removed from the cleaning fixture.

[0046] Preferably, at least one limiting member is provided on the frame 10; one end of the limiting member is fixedly connected to the frame 10; and the other end of the limiting member is provided with a locking structure for fixing the auxiliary strip 12.

[0047] In this embodiment, six limiting members are provided. After the width of the clamping channel is adjusted, the limiting members are used to limit the auxiliary strip 12 to a fixed position on the frame 10, so as to prevent the auxiliary strip 12 from continuing to slide, improve the stability of the PCB board 16 in the clamping groove 11, prevent the PCB board 16 from falling off the auxiliary strip 12, and reduce the cleaning effect of the PCB board 16.

[0048] Preferably, the limiting member includes a movable leaf 13; one end of the movable leaf 13 is fixedly connected to the frame 10; the other end of the movable leaf 13 is provided with two magnets 131; and both ends of the auxiliary strip 12 are provided with magnets.

[0049] Specifically, after adjusting the width of the clamping channel of the auxiliary strip 12, the movable leaf 13 is fastened to the frame 10 and fixed to the frame 10 with nails. Then, the adsorption iron pieces at both ends of the auxiliary strip 12 are magnetically fixed between the two magnetic pieces 131 to limit the auxiliary strip 12 and prevent it from sliding further on the frame 10. After the PCB board 16 is cleaned, the adsorption iron pieces are separated from the two magnetic pieces 131, and the auxiliary strip 12 is slid so that the width of the clamping channel is greater than the length of the PCB board 16, making it easy to quickly remove the PCB board 16 from the clamping groove 11 on the auxiliary strip 12, or the frame rotating edge 102 is opened to slide the PCB board 16 out one by one.

[0050] Example 2

[0051] like Figures 1-4 As shown, the present application provides a PCB board cleaning fixture, comprising: a frame 10; the frame 10 is provided with M clamping channels for placing the PCB board 16; each clamping channel is provided with clamping grooves 11 on both sides; M is an integer greater than 0.

[0052] When cleaning, the PCB 16 is placed into the clamping channel one by one and clamped in the clamping groove 11, and there is a certain interval between adjacent PCBs 16, so that each PCB 16 can be cleaned in all directions. After being placed into the cleaning line for cleaning, the PCB 16 is not easy to fall into the horizontal line with the aid of the clamp, and the cleaning effect is greatly improved. For the part of the PCB 16 clamped by the cleaning clamp, the PCB 16 can be taken out from the cleaning clamp after the main part of the PCB 16 is cleaned, and the local cleaning is carried out in a targeted manner. Compared with the cleaning method of adhesive tape adhesion, the cleaning method of the cleaning clamp of the present application not only does not leave the adhesive that cannot be removed, but also the clamp can accommodate several PCBs 16 at a time, improving the cleaning efficiency of the PCB 16. The adjacent PCBs 16 have a certain interval and are arranged in order, so that the cleanliness of the PCB 16 after cleaning is guaranteed.

[0053] Preferably, the frame 10 is provided with at least one fastener for adjusting the width of the clamping groove 11.

[0054] The fastener can adjust the width of the clamping groove 11 by adjusting its tightness, and four fasteners are specifically provided. Widening the clamping groove 11 is conducive to placing the PCB 16, and narrowing the clamping groove 11 can increase the friction between the PCB 16 and the clamping groove 11. After the PCB 16 is placed in the clamping groove 11, the width of the clamping groove 11 is adjusted to be smaller, so that the clamping groove 11 is in close contact with the PCB 16, the friction between the PCB 16 and the clamping groove 11 is increased, the stability of the PCB 16 in the clamping groove 11 is improved, and the PCB 16 is prevented from loosening or falling off in the clamping groove 11 during cleaning.

[0055] Preferably, the fastener includes a star-shaped screw 101; one end of the star-shaped screw 101 is fixedly connected to one side wall of the clamping groove 11; and the other end of the star-shaped screw 101 is threadedly connected to a nut through the other side wall of the clamping groove 11.

[0056] The star-shaped screw 101 has a good fastening effect. Specifically, two star-shaped screws 101 are arranged on each clamping edge of the frame 10 for adjustment, and there are four star-shaped screws 101 on each frame 10. When it is necessary to increase the width of the clamping groove 11, the nut is rotated to make the length of the screw rod in the clamping groove 11 longer, the pressing force on the clamping groove 11 becomes smaller, and the clamping groove 11 becomes wider. After the clamping groove 11 is widened, the PCB 16 can be easily placed, and after the PCB 16 is placed, the nut is rotated in the opposite direction to make the length of the screw rod in the clamping groove 11 shorter until the clamping groove 11 is in close contact with the PCB 16, the friction between the PCB 16 and the clamping groove 11 is increased, the stability of the PCB 16 in the clamping groove 11 is improved, and the cleaning effect and cleaning efficiency of the PCB 16 are further improved.

[0057] The main function of the fastener is to adjust the tightness of the connection between the clamping groove 11 and the PCB board 16, so as to stably fix the PCB board 16 in the clamping groove 11. For specific structures, please refer to other structures in the prior art, such as clamps, clamps, etc.

[0058] Example 3

[0059] like Figures 1-5 As shown, the present application provides a PCB board cleaning fixture, including: a frame 10; the frame 10 is provided with M clamping channels for placing the PCB board 16; each clamping channel is provided with clamping grooves 11 on both sides; M is an integer greater than 0.

[0060] This example features three clamping channels. During cleaning, PCB boards 16 are sequentially placed into these channels and clamped within the clamping grooves 11. A certain distance is maintained between adjacent PCB boards 16, facilitating comprehensive cleaning of each board. After being placed on the cleaning line, the clamps prevent the PCB boards 16 from falling below the horizontal line, significantly improving the cleaning effect. For the portion of the PCB board 16 held by the cleaning clamps, after the main body of the PCB board 16 has been cleaned, it can be removed for targeted cleaning. Compared to cleaning methods using adhesive tape, this cleaning clamp method leaves no unremovable adhesive residue. Furthermore, the clamps can accommodate multiple PCB boards 16 at a time, increasing cleaning efficiency. The spacing and neat arrangement of adjacent PCB boards 16 ensure the cleanliness of the cleaned boards.

[0061] Preferably, at least one auxiliary strip 12 is slidably connected to the frame 10; the clamping groove 11 is provided on both sides of the auxiliary strip 12 and on the inner side of the frame 10 parallel to the auxiliary strip 12.

[0062] Different PCB 16 size has different, before fixed in the clamping groove 11 on both sides of the clamping channel, need to adjust the width of the clamping channel, the width of the clamping channel can be adjusted according to the length of the specific PCB 16. Specifically, the frame 10 can be set to the length-width ratio of 8:7 rectangle, the four sides of the frame 10 inwardly are recessed, the auxiliary strip 12 specifically has 2, the two ends of the auxiliary strip 12 can be designed as pulley, it is convenient to slide in the recess of the frame 10. The edge of the frame 10 perpendicular to the auxiliary strip 12 is designed as openable rotating edge 102, when the PCB 16 is needed to be placed, open the rotating edge 102 and slide the PCB 16 to the appropriate position along the clamping groove 11, then adjust the position of the auxiliary strip 12 on the frame 10, so that the PCB 16 can be fixed on the clamp by the clamping groove 11, so the width of the clamping channel is determined. Then start to place the second PCB 16, push it to the appropriate position from bottom to top, a certain distance is needed to be kept between the adjacent PCB 16, which is convenient for the thorough cleaning of the PCB 16, then place the third PCB 16, and so on, after all the PCB 16 are placed, close the rotating edge 102 for cleaning. After cleaning, open the rotating edge 102 and slide the PCB 16 out along the clamping groove 11.

[0063] The rotating edge 102 is beneficial to the efficient placing or taking out of the PCB 16, and in practice, the rotating edge 102 can not be provided, the position of the auxiliary strip 12 is slid to make the width of the clamping channel greater than the length of the PCB 16, so that the PCB 16 can be placed in or taken out of the cleaning clamp.

[0064] Preferably, at least one limiting piece is arranged on the frame 10; one end of the limiting piece is fixedly connected to the frame 10; the other end of the limiting piece is provided with a locking structure for fixing the auxiliary strip 12.

[0065] In the embodiment, there are six limiting pieces, after the width of the clamping channel is adjusted by the auxiliary strip 12, the limiting pieces are used to limit the auxiliary strip 12 at the fixed position of the frame 10, so as to avoid the continuous sliding of the auxiliary strip 12, improve the stability of the PCB 16 in the clamping groove 11, prevent the PCB 16 from falling off the auxiliary strip 12, and reduce the cleaning effect of the PCB 16.

[0066] Preferably, the limiting piece comprises a movable leaf 13; one end of the movable leaf 13 is fixedly connected to the frame 10; the other end of the movable leaf 13 is provided with two magnet pieces 131; the two ends of the auxiliary strip 12 are both provided with a magnet piece.

[0067] Specifically, after the auxiliary strip 12 adjusts the width of the clamping channel, the movable sheet 13 is buckled on the frame 10, the movable sheet 13 is fixed on the frame 10 by using nails, and then the auxiliary strip 12 is limited by magnetically attracting and fixing the two end adsorption iron sheets in the middle of the two adsorption iron sheets 131, so as to prevent the auxiliary strip 12 from continuing to slide on the frame 10. After the PCB board 16 is cleaned, the adsorption iron sheet is separated from the two adsorption iron sheets 131, the auxiliary strip 12 is slid, the width of the clamping channel is greater than the length of the PCB board 16, the PCB board 16 is quickly taken out from the clamping groove 11 on the auxiliary strip 12, or the frame rotating edge 102 is opened to slide the PCB board 16 out in turn.

[0068] Preferably, at least one fastener for adjusting the width of the clamping groove 11 is arranged on the frame 10.

[0069] The fastener can adjust the width of the clamping groove 11 by adjusting the tightness, and two fasteners are arranged. Widening the clamping groove 11 is beneficial to putting the PCB board 16 in, and narrowing the clamping groove 11 can increase the friction between the PCB board 16 and the clamping groove 11. After the PCB board 16 is put into the clamping groove 11, the width of the clamping groove 11 is adjusted to be smaller, the clamping groove 11 is tightly abutted with the PCB board 16, the friction between the PCB board 16 and the clamping groove 11 is increased, the stability of the PCB board 16 in the clamping groove 11 is improved, and the PCB board 16 is prevented from loosening or falling off in the clamping groove 11 during cleaning.

[0070] Preferably, the fastener includes a torx screw 101, one end of the torx screw 101 is fixedly connected to one side wall of the clamping groove 11, and the other end of the torx screw 101 is threadedly connected with a nut through the other side wall of the clamping groove 11.

[0071] The torx screw 101 has a better fastening effect. Specifically, one torx screw 101 is arranged on each clamping edge of the frame 10 for adjustment. When it is needed to increase the width of the clamping groove 11, the nut is rotated to make the length of the screw rod in the clamping groove 11 longer, the extrusion force on the clamping groove 11 is smaller, the clamping groove 11 is widened, and then the PCB board 16 can be easily put in. After the PCB board 16 is put in, the nut is rotated in the opposite direction to make the length of the screw rod in the clamping groove 11 shorter until the clamping groove 11 is tightly abutted with the PCB board 16, the friction between the PCB board 16 and the clamping groove 11 is increased, the stability of the PCB board 16 in the clamping groove 11 is improved, and then the cleaning effect and the cleaning efficiency are improved.

[0072] The main function of the fastener is to adjust the tightness of the combination of the clamping groove 11 and the PCB board 16, which is beneficial to stably fixing the PCB board 16 in the clamping groove 11. The specific structure can also refer to other structures in the prior art, such as a clamp, a clamping plate and the like.

[0073] Preferably, the frame 10 is further provided with a plurality of fasteners, which are disposed on the side of the auxiliary strip 12.

[0074] After the PCB board 16 is placed in the clamping groove 11, the fixing member is located on the side of the PCB board 16. When cleaning the PCB board 16, the fixing member can obstruct the movement of the PCB board 16, prevent the PCB board 16 from falling out of the clamping groove 11, fix the PCB board 16 on the fixture, and achieve a good cleaning effect.

[0075] Preferably, the fastener includes a Teflon rope 14; the Teflon rope 14 is disposed on the frame 10; the Teflon rope 14 is disposed on the side of the auxiliary strip 12; the Teflon rope 14 is perpendicular to the auxiliary strip 12.

[0076] The Teflon rope 14 is made of polytetrafluoroethylene fiber, which can withstand the effects of strong acids, strong alkalis, strong oxidants and various organic solvents, avoids corrosion from cleaning agents, and has high durability. The spacing between adjacent Teflon ropes 14 is 1:21 of the width of the frame 10. Several Teflon ropes 14 can prevent the PCB board 16 from falling off due to the impact of the cleaning fluid during cleaning, and better fix the PCB board 16 in the fixture.

[0077] The fastener is not limited to Teflon rope 14; its specific structure can also be found in other acid and alkali resistant ropes in the prior art.

[0078] Preferably, it also includes a clamping hinge 15; the clamping hinge 15 is rotatably connected to one side of the frame 10; both the clamping hinge 15 and the frame 10 have matching fasteners 151 on their opening and closing sides; the clamping hinge 15 is provided with a plurality of fixing strips; the auxiliary strip 12 is located between the Teflon rope 14 and the fixing strips.

[0079] like Figure 5 As shown, the fixing strip on the clamping hinge 15 is a Teflon rope 14, and it has the same direction as the Teflon rope 14 on the frame 10. The clamping hinge 15 and the two fasteners 151 on the frame 10 are magnetically attracted to each other. When placing the PCB board 16, the clamping hinge 15 is rotated open relative to the frame 10, and all the PCB boards 16 are placed in the corresponding clamping grooves 11 in sequence. Then, the clamping hinge 15 is magnetically closed with the frame 10. After closing, the PCB board 16 can be cleaned. During cleaning, the Teflon ropes 14 on both sides of the PCB board fix the PCB board 16 in the middle, reducing the displacement space of the PCB board 16 and improving its stability and cleaning effect on the fixture. After cleaning, the magnetic structure is released, and the clamping hinge 15 is rotated open relative to the frame 10 to remove the cleaned PCB board 16.

[0080] The embodiment also provides a PCB cleaning system, which comprises the PCB cleaning clamp.

[0081] The cleaning system structure of the application does not need to be redesigned. The PCB 16 is sequentially placed into the cleaning clamp, and then the cleaning clamp is placed into the cleaning line of the cleaning system for cleaning. The cleaning clamp can clamp several PCBs 16 for cleaning at a time, thereby improving the cleaning efficiency and cleaning effect of the cleaning system on the PCB 16.

[0082] It can be understood that the above embodiment only expresses the preferred embodiment of the application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the application, and some modifications and improvements can be made, which belong to the protection scope of the application; therefore, any equivalent transformation and modification within the scope of the claims of the application shall belong to the scope of the claims of the application.

Claims

1. A cleaning fixture for PCB boards, characterized in that, It comprises: A frame (10); M clamping channels for placing the PCB board (16) are arranged on the frame (10); clamping grooves (11) are arranged on both sides of each clamping channel; M is an integer greater than 0; at least one fastener for adjusting the width of the clamping groove (11) is arranged on the frame (10).

2. The PCB cleaning fixture of claim 1, wherein, At least one auxiliary strip (12) is slidably connected to the frame (10); the clamping grooves (11) are arranged on both side edges of the auxiliary strip (12) and the inner edge of the frame (10) parallel to the auxiliary strip (12).

3. The PCB cleaning fixture of claim 2, wherein, At least one limiting piece is arranged on the frame (10); one end of the limiting piece is fixedly connected to the frame (10); the other end of the limiting piece is provided with a locking structure for fixing the auxiliary strip (12).

4. The PCB cleaning fixture of claim 3, wherein, The limiting piece comprises a movable leaf (13); one end of the movable leaf (13) is fixedly connected to the frame (10); the other end of the movable leaf (13) is provided with two magnet pieces (131); both ends of the auxiliary strip (12) are provided with a magnet piece.

5. The PCB cleaning fixture of claim 1, wherein, The fastener comprises a torx screw (101); one end of the torx screw (101) is fixedly connected to one side wall of the clamping groove (11); the other end of the torx screw (101) is threadedly connected with a nut through the other side wall of the clamping groove (11).

6. The PCB cleaning fixture of claim 2, wherein, A plurality of fixing pieces are further arranged on the frame (10), and the fixing pieces are arranged on the side edges of the auxiliary strip (12).

7. The PCB cleaning fixture of claim 6, wherein, The fixing piece comprises a Teflon rope (14); the Teflon rope (14) is arranged on the frame (10); the Teflon rope (14) is arranged on the side of the auxiliary strip (12); the Teflon rope (14) is perpendicular to the auxiliary strip (12).

8. The PCB cleaning fixture of claim 7, wherein, It further comprises a clamping hinge (15); the clamping hinge (15) is rotatably connected to one edge of the frame (10); the clamping hinge (15) and the opening and closing edge of the frame (10) are provided with a matched buckling piece (151); a plurality of fixing strips are arranged on the clamping hinge (15); the auxiliary strip (12) is located between the Teflon rope (14) and the fixing strips.

9. A PCB cleaning system characterized by, It comprises a PCB cleaning clamp according to any one of claims 1-8.

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