Circuit board cleaning clamp

Abstract

According to the circuit board cleaning clamp provided by the embodiment of the invention, when a to-be-cleaned circuit board needs to be processed, the circuit board is firstly placed on the lifting table of the base table, and then the circuit board is clamped and fixed on the base table through the clamping plate. Due to the fact that the threaded rod is fixedly connected with the inner ring of the annular bearing and the outer ring of the annular bearing is fixedly connected with the lifting table, the lifting table can ascend and descend by rotating the threaded rod. At the moment, the base station is in contact with the circuit board only through the clamping plates on the two sides of the base station, and therefore the bottom face of the circuit board can be thoroughly cleaned in a spraying mode. With the adoption of the structural design, the circuit board can be comprehensively cleaned to the greatest extent, so that the subsequent product quality of the circuit board is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board manufacturing, and more specifically, to a circuit board cleaning fixture. Background Art

[0002] In the production process of circuit boards, impurities such as rosin and flux usually remain on the circuit boards after welding. If such impurities are not cleaned in time, the subsequent normal use of the circuit boards will be affected. Therefore, it is necessary to clean the circuit boards after welding.

[0003] In the related art, a clamp is generally used to fix the circuit board first, and then the circuit board is cleaned by high-pressure spraying. However, in the actual cleaning process, due to the large contact area between the clamp and the circuit board, this will cause that part of the circuit board cannot be cleaned, thereby affecting the product quality of the circuit board. Utility Model Content

[0004] In view of this, an embodiment of the present application provides a circuit board cleaning fixture to solve the problem in the related art that the part of the circuit board that contacts the fixture cannot be cleaned.

[0005] In order to achieve the above objectives, the present application provides the following technical solutions:

[0006] A circuit board cleaning fixture, comprising:

[0007] A base, the bottom end of which is in contact with the ground through supporting legs, a notch is provided at the center of the base, and threaded holes are also provided on the bottom surface of the base, and the threaded holes are distributed beside the notch;

[0008] A lifting platform, wherein the outer diameter and shape of the lifting platform are matched with the outer diameter and shape of the notch, the lifting platform is slidably arranged at the notch, a connecting ear is arranged at one end in the length direction of the lifting platform, the connecting ear is provided with a through hole along the thickness direction, and the through hole is opposite to the threaded hole in the upper and lower directions;

[0009] A circular ring bearing, the outer ring of which is fixedly disposed in the through hole, and the circular ring bearing is located below the threaded hole, and the circular ring bearing is concentrically disposed with the through hole;

[0010] A threaded rod, the threaded rod is inserted into the inner ring of the annular bearing, the threaded rod is fixed to the inner ring of the annular bearing, and the threaded rod is also connected to the threaded hole;

[0011] A clamping plate is arranged above the base, the clamping plate is located on both sides of the base, and the clamping plate is used to clamp and fix the circuit board.

[0012] In some possible implementations, the thickness of the lifting platform is greater than the depth of the notch.

[0013] In some possible implementations, the thickness of the lifting platform is smaller than the height of the supporting legs from the ground.

[0014] In some possible implementations, drainage holes are provided on the side walls of the notch.

[0015] In some possible implementations, the splint is fixedly disposed on the upper surface of the base, and a side wall of the splint is provided with a plurality of through holes along the thickness direction, and the plurality of through holes are laterally distributed on the side wall of the splint;

[0016] The side wall of the clamping plate is also provided with a vertical groove, the vertical groove coincides with the perforation, and the thickness of the vertical groove is less than the thickness of the clamping plate;

[0017] A limiting annular groove is also provided in the clamping plate, the limiting annular groove is arranged concentrically with the through hole, and the outer diameter of the limiting annular groove is adapted to the length of the vertical groove;

[0018] The through hole is located on the inner surface of the side wall of the clamping plate and a clamping column is slidably provided;

[0019] The through hole is located on the outer surface of the side wall of the clamping plate and a locking column is slidably arranged, and a vertical protrusion is arranged outside the locking column for use in conjunction with the vertical groove;

[0020] A spring is arranged in the through hole, and two ends of the spring are respectively in contact with the locking column and the clamping column.

[0021] In some possible implementations, the thickness of the vertical protrusion is equal to the thickness of the limiting annular groove.

[0022] The circuit board cleaning fixture structure provided by the embodiment of the present application has at least the following beneficial effects:

[0023] In the circuit board cleaning fixture provided in the embodiment of the present application, when the circuit board to be cleaned needs to be processed, the circuit board is first placed on the lifting platform of the base, and then the circuit board is clamped and fixed on the base using the clamping plate. Since the threaded rod is fixedly connected to the inner ring of the annular bearing, and the outer ring of the annular bearing is fixedly connected to the lifting platform, rotating the threaded rod will cause the lifting platform to rise and fall. At this time, the base is in contact with the circuit board only through the clamping plates on both sides of it, so the bottom surface of the circuit board can be thoroughly cleaned by spraying. With the above structural design, the circuit board can be fully cleaned to the greatest extent to ensure the subsequent product quality of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a circuit board cleaning fixture provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the bottom structure of the circuit board cleaning fixture provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the clamping structure of the circuit board cleaning fixture provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of a clamping plate of a circuit board cleaning fixture provided in an embodiment of the present application.

[0029] In the figure:

[0030] 100, base; 110, supporting leg; 120, notch; 130, threaded hole; 200, lifting platform; 210, connecting ear; 211, through hole; 300, annular bearing; 400, threaded rod; 500, clamping plate; 510, through hole; 520, vertical groove; 530, limiting annular groove; 600, clamping column; 700, locking column; 710, vertical protrusion; 800, spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-Figure 4As shown, the circuit board cleaning fixture provided in the embodiment of the present application includes a base 100, a lifting platform 200, a circular bearing 300, a threaded rod 400 and a clamping plate 500, wherein the base 100 is used for fixing the circuit board and the structure for subsequent cleaning, and the base 100 is a floor-standing structure, and the bottom end of the base 100 is placed on the ground through a supporting leg 110. The base 100 is provided with a notch 120 along the thickness direction, and the notch 120 is located at the center of the base 100. In addition, the bottom surface of the base 100 is also provided with a threaded hole 130, and the threaded hole 130 is distributed beside the notch 120.

[0033] The lifting platform 200 is a table top that is compatible with the outer diameter and shape of the notch 120. The lifting platform 200 is slidably set in the notch 120. A connecting ear 210 is set on one side of the bottom surface of the lifting platform 200 along the length direction. The connecting ear 210 is provided with a through hole 211 along the thickness direction. Specifically, the through hole 211 is opposite to the threaded hole 130 on the bottom surface of the base 100, that is, the center of the through hole 211 and the center of the threaded hole 130 are both on the vertical connecting line.

[0034] like Figure 2 As shown, the annular bearing 300 has an inner ring and an outer ring, and a plurality of balls are arranged between the inner ring and the outer ring. In this embodiment, the outer ring of the annular bearing 300 is fixedly connected to the hole wall of the through hole 211, and the center of the annular bearing 300 and the center of the through hole 211 are both on the vertical line. The threaded rod 400 is arranged through the inner ring of the annular bearing 300 and is fixedly connected to the ring wall of the inner ring. The threaded rod 400 passes through the annular bearing 300 and extends into the threaded hole 130 of the lifting platform 200.

[0035] In this embodiment, the lifting platform 200 is slidably disposed at the notch 120 of the base 100, and the threaded rod 400 can enter the threaded hole 130 of the lifting platform 200 by rotating, so that the lifting platform 200 can move up and down relative to the base 100, thereby realizing the lifting function of the lifting platform 200. Preferably, the thickness of the lifting platform 200 is greater than the depth of the notch 120. In addition, the thickness of the lifting platform 200 is less than the height of the support leg 110 from the ground, so that the lifting platform 200 can be lifted and lowered on the base 100.

[0036] In addition, a clamping plate 500 is provided on the upper surface of the base 100. The clamping plates 500 are located on both sides of the base 100 in the length direction. The clamping plates 500 can clamp and fix the circuit board.

[0037] In the circuit board cleaning fixture provided in the embodiment of the present application, when the circuit board to be cleaned needs to be processed, the circuit board is first placed on the lifting platform 200 of the base 100, and then the circuit board is clamped and fixed on the base 100 using the clamping plate 500. Since the threaded rod 400 is fixedly connected to the inner ring of the annular bearing 300, and the outer ring of the annular bearing 300 is fixedly connected to the lifting platform 200, rotating the threaded rod 400 will cause the lifting platform 200 to be raised and lowered. At this time, the base 100 is only in contact with the circuit board through the clamping plates 500 on both sides thereof, so the bottom surface of the circuit board can be thoroughly cleaned by spraying. With the above-mentioned structural design, the circuit board can be fully cleaned to the greatest extent to ensure the subsequent product quality of the circuit board.

[0038] In some embodiments, the wall surface of the notch 120 may also be provided with a drainage hole. When the lifting platform 200 moves downward, the table top of the lifting platform 200 is out of contact with the bottom surface of the circuit board. At this time, the water in the cleaning process will enter the groove formed by the notch 120 and the lifting platform 200. Subsequently, this part of the water will be discharged to the designated position through the drainage hole.

[0039] In some embodiments, Figure 3 and Figure 4 As shown, the clamping plate 500 is fixedly arranged on the upper surface of the base 100, and the clamping plate 500 is provided with a plurality of through holes 510 along the thickness direction, and the plurality of through holes 510 are evenly distributed along the transverse direction on the side wall of the clamping plate 500. The outer surface of the side wall of the clamping plate 500 is also provided with a vertical groove 520, which is connected with the through hole 510, and the depth of the vertical groove 520 is less than the depth of the through hole 510 and the thickness of the clamping plate 500.

[0040] A limiting annular groove 530 is also provided in the clamping plate 500, and the limiting annular groove 530 is located beside the vertical groove 520. The limiting annular groove 530 is concentric with the through hole 510, and the outer diameter of the limiting annular groove 530 is adapted to the length of the vertical groove 520. It can also be said that the limiting annular groove 530 is obtained by the vertical groove 520 making a circular motion along its center position.

[0041] In addition, the portion of the through hole 510 located on the outer surface of the side wall of the clamping plate 500 is slidably connected to the locking column 700, and the outer wall of the locking column 700 is provided with a vertical protrusion 710 used in conjunction with the vertical groove 520. The portion of the through hole 510 located on the inner surface of the side wall of the clamping plate 500 is also slidably connected to the clamping column 600. A spring 800 is also provided in the through hole 510, and the two ends of the spring 800 are respectively in contact with the clamping column 600 and the locking column 700.

[0042] In actual use, the locking column 700 and the vertical protrusion 710 are aligned with the through hole 510 and the vertical groove 520 and inserted, and then the locking column 700 is rotated so that the vertical protrusion 710 can be located in the limiting annular groove 530. At this time, the locking column 700 moves into the through hole 510, which causes the clamping column 600 to protrude outward through the spring 800, thereby achieving the function of clamping the circuit board through the clamping column 600. With the above structural design, the circuit board can be fixed by a single or several clamping columns 600, thereby further reducing the contact area between the circuit board and the fixture, thereby improving the cleaning effect of the circuit board.

[0043] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0044] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0045] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0046] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0047] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0048] The term "substrate" as used herein refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned, or may remain unpatterned. In addition, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafer, etc.).

[0049] The term "layer" used in the text may refer to a material portion including an area with a certain thickness. A layer may extend over the entire underlying structure or overlying structure, or may have a range smaller than the range of the underlying or overlying structure. In addition, a layer may be an area of ​​a homogeneous or inhomogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, a layer may be located between the top surface and the bottom surface of the continuous structure or between any paired lateral planes at the top surface and the bottom surface. A layer may extend laterally, vertically and / or along a tapered surface. A substrate may be a layer, may include one or more layers therein, and / or may have one or more layers located thereon, above it and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductors and a contact layer (forming contacts, interconnects and / or vias therein) and one or more dielectric layers.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit board cleaning fixture, characterized in that: include: A base (100), wherein the bottom end of the base (100) contacts the ground through a supporting leg (110), a notch (120) is provided at the center of the base (100), and a threaded hole (130) is also provided on the bottom surface of the base (100), and the threaded holes (130) are distributed beside the notch (120); A lifting platform (200), wherein the outer diameter and shape of the lifting platform (200) are matched with the outer diameter and shape of the notch (120), the lifting platform (200) is slidably arranged at the notch (120), a connecting ear (210) is arranged at one end in the length direction of the lifting platform (200), the connecting ear (210) is provided with a through hole (211) along the thickness direction, and the through hole (211) is opposite to the threaded hole (130) in the upper and lower directions; An annular bearing (300), wherein the outer ring of the annular bearing (300) is fixedly disposed in the through hole (211), and the annular bearing (300) is located below the threaded hole (130), and the annular bearing (300) is concentrically disposed with the through hole (211); A threaded rod (400), wherein the threaded rod (400) is inserted into the inner ring of the annular bearing (300), and the threaded rod (400) is fixed to the inner ring of the annular bearing (300), and the threaded rod (400) is also connected to the threaded hole (130); A clamping plate (500) is arranged above the base (100), the clamping plate (500) is located on both sides of the base (100), and the clamping plate (500) is used to clamp and fix the circuit board.

2. The circuit board cleaning fixture according to claim 1, characterized in that: The thickness of the lifting platform (200) is greater than the depth of the notch (120).

3. The circuit board cleaning fixture according to claim 1, characterized in that: The thickness of the lifting platform (200) is smaller than the height of the supporting legs (110) from the ground.

4. The circuit board cleaning fixture according to claim 1, characterized in that: A drainage hole is provided on the side wall of the notch (120).

5. The circuit board cleaning fixture according to claim 1, characterized in that: The clamping plate (500) is fixedly arranged on the upper surface of the base (100), and a plurality of through holes (510) are arranged on the side wall of the clamping plate (500) along the thickness direction, and the plurality of through holes (510) are distributed transversely on the side wall of the clamping plate (500); The side wall of the clamping plate (500) is further provided with a vertical groove (520), the vertical groove (520) coincides with the through hole (510), and the thickness of the vertical groove (520) is less than the thickness of the clamping plate (500); A limiting annular groove (530) is also provided in the clamping plate (500), the limiting annular groove (530) is arranged concentrically with the through hole (510), and the outer diameter of the limiting annular groove (530) is adapted to the length of the vertical groove (520); The through hole (510) is located on the inner surface of the side wall of the clamping plate (500) and a clamping column (600) is slidably arranged thereon; The through hole (510) is slidably provided with a locking column (700) on the outer surface of the side wall of the clamping plate (500), and the locking column (700) is provided with a vertical protrusion (710) for use with the vertical groove (520) outside. A spring (800) is disposed in the through hole (510), and two ends of the spring (800) are respectively in contact with the locking column (700) and the clamping column (600).

6. The circuit board cleaning fixture according to claim 5, characterized in that: The thickness of the vertical protrusion (710) is equal to the thickness of the limiting annular groove (530).

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