A circuit board cleaning device

Abstract

This utility model belongs to the field of circuit board cleaning technology, specifically relating to a circuit board cleaning device, including a cleaning table. A dry ice cleaner is located on the top center of the cleaning table, and both side walls of the dry ice cleaner are fixed to the outer wall of the cleaning table via C-shaped support frames. When cleaning a batch of circuit boards of the same model, this circuit board cleaning device can place the circuit boards individually on the top of a moving table. A servo motor drives a unidirectional screw to rotate, causing the moving table to move to the left via a sliding seat. The transmission columns connected to the connecting rods move to the left within V-shaped grooves on the top of the transmission plate. The V-shaped groove design allows two clamping plates to move to the left along with the moving table while simultaneously moving relative to each other, clamping and fixing the placed circuit boards until they pass under multiple outlets, automatically cleaning the circuit board surface.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board cleaning technology, and specifically relates to a circuit board cleaning device. Background Technology

[0002] Existing circuit board cleaning equipment typically employs dry ice cleaning technology, which uses high-speed jets of dry ice particles to impact the circuit board surface, achieving the removal and cleaning of dirt. However, this technology has significant drawbacks when processing circuit boards in batches:

[0003] High dependence on manual labor: Existing equipment requires operators to manually clamp circuit boards and then clean them one by one with a dry ice cleaning machine, which is inefficient and labor-intensive, making it difficult to meet the needs of industrial mass production.

[0004] Insufficient adaptability: Traditional fixtures are usually designed for circuit boards of specific sizes and cannot be flexibly adjusted to adapt to circuit boards of different specifications. This results in the need to frequently adjust or replace the fixtures when changing product models, increasing downtime and costs.

[0005] Low level of automation: The cleaning process lacks integrated automatic positioning, fixing and cleaning functions, requiring manual intervention for positioning and start / stop. Operational errors can easily lead to uneven cleaning or omissions, affecting the yield rate. Therefore, there is an urgent need for a cleaning device that can automatically clamp circuit boards of different sizes, integrate the cleaning process and reduce manual intervention, so as to improve the efficiency and reliability of batch cleaning.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a circuit board cleaning device to solve the problems of high dependence on manual labor, insufficient adaptability and low degree of automation in the existing technology.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A circuit board cleaning device includes a cleaning table, a dry ice cleaner mounted on the top center of the cleaning table, both side walls of the dry ice cleaner being fixed to the outer wall of the cleaning table via C-shaped support frames, an inverted T-shaped tube fixed to the dry ice outlet at the bottom of the dry ice cleaner, the two ends of the inverted T-shaped tube being closed, and the bottom end of the inverted T-shaped tube having multiple equally spaced outlets, a movable platform mounted on the right side of the top of the cleaning table, the bottom end of the movable platform being connected to the top of the cleaning table via a driving assembly; and an adjustable moving positioning assembly mounted on the movable platform and connected to the top of the cleaning table.

[0010] Preferably, the adjustable mobile positioning component includes two symmetrically arranged clamping plates that are slidably connected to the top of the mobile platform. The bottom end of each clamping plate is fixed with a slider with a convex vertical cross-section, and both sliders are slidably connected in a groove opened at the top of the mobile platform.

[0011] Preferably, a transmission column is fixedly connected to the middle of the opposite side of each of the two clamping plates by a connecting rod, and the bottom end of each transmission column is movably connected to the V-shaped groove opened at the top of the transmission plate.

[0012] Preferably, the inner width of the V-shaped groove is equal to the diameter of the transmission column, and the bottom end of the transmission column is in contact with the inner bottom wall of the V-shaped groove.

[0013] Preferably, two symmetrically arranged guide bars are fixed to the bottom ends of both transmission plates. The vertical cross-section of each guide bar is convex, and the guide bars are slidably connected to the guide groove opened at the top of the cleaning table.

[0014] Preferably, a hand-tightening screw is rotatably connected to the middle of the side wall of each of the two opposing transmission plates, and the middle part of the hand-tightening screw is threaded into a screw hole opened on the C-shaped support frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) When cleaning a batch of circuit boards of the same model, the circuit board cleaning device of this utility model can place the circuit board on the top of the moving table. The servo motor drives the unidirectional screw to rotate, which causes the moving table to move to the left through the sliding seat. The transmission column connected by the connecting rod moves to the left in the V-shaped groove opened on the top of the transmission plate. With the shape design of the V-shaped groove, the two clamping plates move to the left with the moving table and move relative to each other, which can clamp and fix the placed circuit board until it moves through the bottom of multiple outlets, automatically cleaning the surface of the circuit board. When the moving table moves to the left end, with the shape design of the V-shaped groove, the two clamping plates automatically release, making it easy for the manual to remove the cleaned motherboard. Another circuit board to be cleaned is placed on the top of the moving table after the cleaned circuit board has been removed. The servo motor drives the unidirectional screw to reverse, causing the moving table to move to the right. This makes it easy to clean a batch of circuit boards of the same model efficiently. The whole process only requires manual handling, which has a high degree of automation and greatly improves the efficiency of circuit board cleaning. It is especially suitable for application scenarios of cleaning a batch of circuit boards. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional first-view structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional second-view structure of this utility model;

[0019] Explanation of key figure labels:

[0020] 1. Cleaning table; 11. C-shaped support frame; 12. Dry ice cleaning machine; 121. Inverted T-shaped tube; 122. Outlet; 2. Moving table; 21. Sliding seat; 22. One-way screw; 23. Servo motor; 3. Adjustable moving positioning assembly; 31. Clamping plate; 32. Slider; 33. Connecting rod; 34. Transmission column; 35. Transmission plate; 36. V-groove; 37. Guide bar; 38. Hand-tightening screw. Detailed Implementation

[0021] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] High dependence on manual labor: Existing equipment requires operators to manually clamp circuit boards and then clean them one by one using a dry ice cleaning machine, which is inefficient and labor-intensive, making it difficult to meet the needs of industrial mass production.

[0025] Insufficient adaptability: Traditional fixtures are usually designed for circuit boards of specific sizes and cannot be flexibly adjusted to adapt to circuit boards of different specifications. This results in the need to frequently adjust or replace the fixtures when changing product models, increasing downtime and costs.

[0026] Low level of automation: The cleaning process lacks integrated automatic positioning, fixing and cleaning functions, requiring manual intervention for positioning and start / stop, which can easily lead to uneven cleaning or omissions due to operational errors, affecting the yield rate.

[0027] See attached document Figure 1-2 A circuit board cleaning device includes a cleaning table 1, a dry ice cleaner 12 located above the top center of the cleaning table 1, both side walls of the dry ice cleaner 12 being fixed to the outer wall of the cleaning table 1 via C-shaped support frames 11, an inverted T-shaped tube 121 fixed to the dry ice outlet 122 at the bottom of the dry ice cleaner 12, the two ends of the inverted T-shaped tube 121 being closed, and the bottom end of the inverted T-shaped tube 121 having multiple equally spaced outlets 122, a movable platform 2 located on the right side of the top of the cleaning table 1, the bottom end of the movable platform 2 being connected to the top of the cleaning table 1 via a drive assembly; and an adjustable movable positioning assembly 3, which is installed on the movable platform 2 and connected to the top of the cleaning table 1.

[0028] Among them, the dry ice cleaning machine 12 is existing technology, and its working principle will not be described in detail. The specific model can be selected according to the actual market.

[0029] The driving assembly includes a sliding seat 21 with a convex vertical cross-section fixed to the bottom of the moving table 2. The sliding seat 21 is slidably connected to a sliding groove opened at the top of the cleaning table 1. A one-way screw 22 is threaded onto the sliding seat 21. Both ends of the one-way screw 22 are rotatably connected to the sliding groove, and the left end of the one-way screw 22 extends to the outside of the cleaning table 1 and is fixed to the output shaft of the servo motor 23.

[0030] Furthermore, such as Figure 1-2 As shown, in order to enable the movable platform 2 to move left and right and to actively clamp and fix circuit boards of different sizes through adjustment, an adjustable moving positioning component 3 is provided. This component includes two symmetrically arranged clamping plates 31 slidably connected to the top of the movable platform 2. Each clamping plate 31 has a slider 32 with a convex vertical cross-section fixed to its bottom end. Both sliders 32 are slidably connected to a groove opened at the top of the movable platform. A transmission column 34 is fixed to the middle of the opposite side of each clamping plate 31 via a connecting rod 33. The bottom ends of the transmission columns 34 are movably overlapped. In the V-shaped groove 36 opened at the top of the transmission plate 35, the inner width of the V-shaped groove 36 is equal to the diameter of the transmission column 34. The bottom end of the transmission column 34 is in contact with the inner bottom wall of the V-shaped groove 36. Two symmetrically arranged guide bars 37 are fixedly connected to the bottom ends of the two transmission plates 35. The vertical cross section of the guide bars 37 is convex. The guide bars 37 are slidably connected to the guide groove opened at the top of the cleaning table 1. A hand-tightening screw 38 is rotatably connected to the middle of the side wall of the two transmission plates 35 facing away from each other. The middle of the hand-tightening screw 38 is threaded into the screw hole opened on the C-shaped support frame 11.

[0031] The V-groove 36 is shown in the attached figure. When the two transmission plates 35 move away from each other or towards each other for adjustment, they can be rotated by hand-tightening the screw 38. When the two transmission plates 35 are closer, the transmission column 34 is set up so that the initial distance between the two clamping plates 31 is smaller, which makes it easier to clamp and fix small-sized circuit boards. Conversely, the two transmission plates 35 are farther apart, which makes it easier to clamp and fix large-sized circuit boards.

[0032] In practical use, when cleaning a batch of circuit boards of the same model, the circuit board can be placed on top of the moving stage 2. The servo motor 23 drives the one-way screw 22 to rotate, causing the moving stage 2 to move to the left via the sliding seat 21. The transmission columns 34 connected to the connecting rod 33 move to the left within the V-shaped grooves 36 on the top of the transmission plate 35. The shape of the V-shaped grooves 36, combined with the leftward movement of the moving stage 2, allows the two clamping plates 31 to move relative to each other, clamping and fixing the placed circuit board until it passes under the multiple outlets 122, automatically cleaning the surface of the circuit board. The cleaning process is efficient. When the moving stage 2 moves to the left end, the V-shaped groove 36 automatically releases the two clamping plates 31, allowing the cleaned motherboard to be easily removed manually. Another circuit board to be cleaned is placed on top of the moving stage 2, which has already been cleaned. The servo motor 23 drives the one-way screw 22 to reverse, causing the moving stage 2 to move to the right. This allows for efficient cleaning of a batch of circuit boards of the same model. The entire process requires only manual handling, resulting in a high degree of automation and significantly improving the efficiency of circuit board cleaning. It is especially suitable for applications involving the cleaning of batch circuit boards.

[0033] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A circuit board cleaning device, comprising a cleaning table (1), a dry ice cleaner (12) disposed above the top center of the cleaning table (1), both side walls of the dry ice cleaner (12) being fixed to the outer wall of the cleaning table (1) via C-shaped support frames (11), and an inverted T-shaped tube (121) fixed to the dry ice outlet (122) at the bottom of the dry ice cleaner (12), the two ends of the inverted T-shaped tube (121) being closed, and the bottom end of the inverted T-shaped tube (121) being provided with a plurality of equally spaced outlets (122), characterized in that, A movable platform (2) is provided on the top right side of the cleaning table (1), and the bottom end of the movable platform (2) is connected to the top of the cleaning table (1) through a driving component. An adjustable mobile positioning component (3) is installed on the mobile platform (2) and connected to the top of the cleaning platform (1).

2. The circuit board cleaning device according to claim 1, characterized in that, The adjustable mobile positioning component (3) includes two symmetrically arranged clamping plates (31) that are slidably connected to the top of the mobile platform (2). The bottom end of each clamping plate (31) is fixed with a slider (32) with a convex vertical cross section. Both sliders (32) are slidably connected in a groove opened at the top of the mobile platform.

3. The circuit board cleaning device according to claim 2, characterized in that, The two clamping plates (31) are fixed to the middle of opposite sides by a connecting rod (33) with a transmission column (34), and the bottom end of the transmission column (34) is movably connected to the V-shaped groove (36) opened at the top of the transmission plate (35).

4. The circuit board cleaning apparatus according to claim 3, characterized in that, The inner width of the V-groove (36) is equal to the diameter of the transmission column (34), and the bottom end of the transmission column (34) is in contact with the inner bottom wall of the V-groove (36).

5. The circuit board cleaning apparatus according to claim 3, characterized in that, Two symmetrically arranged guide bars (37) are fixed to the bottom ends of the two transmission plates (35). The vertical cross section of the guide bars (37) is convex. The guide bars (37) are slidably connected to the guide groove opened at the top of the cleaning table (1).

6. The circuit board cleaning apparatus according to claim 5, characterized in that, Both transmission plates (35) have a hand-tightening screw (38) rotatably connected to the middle of one side wall facing away from each other. The middle part of the hand-tightening screw (38) is threaded into a screw hole opened on the C-shaped support frame (11).

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