Cleaning device for PCB processing

Abstract

The utility model belongs to the technical field of cleaning devices, and particularly relates to a cleaning device for PCB (printed circuit board) processing, which comprises a cleaning box and ultrasonic transducers which are fixedly mounted at the bottom of the cleaning box through steel plates and are symmetrically arranged, an ultrasonic generator is arranged on one side of each ultrasonic transducer, a shell bottom cover is fixedly mounted on the lower surface of the cleaning box, and the shell bottom cover is fixedly mounted on the lower surface of the cleaning box. The ultrasonic generator is fixed to the inner side wall of a bottom cover of the shell, a clamping assembly is installed in the cleaning box, the clamping assembly comprises a bottom plate arranged in the cleaning box and L-shaped supports which are fixed to the upper surface of the bottom plate and are symmetrically arranged, and due to the arrangement of the clamping assembly, the PCBs are vertically separated one by one and cleaned, and meanwhile the PCBs are not prone to being damaged. The adjacent PCBs do not make contact with each other, the cleaning area is prevented from being limited, the cleaning area is more thorough, the using effect of the device is improved, and the actual using requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning devices, and in particular relates to a cleaning device for PCB circuit board processing. Background Art

[0002] PCB cleaning equipment is an important tool for cleaning PCBs. PCB cleaning is an extremely important step in precision electronic assembly. Its main purpose is to remove the residual flux on the PCB produced during the soldering process. However, existing PCB cleaning equipment cannot meet people's needs.

[0003] Existing PCB cleaning devices have certain drawbacks when used. First, multiple groups of PCBs are placed in contact and mixed for cleaning, which easily results in the inability to clean the contacting side of the PCBs. The cleaning area is limited, resulting in incomplete cleaning and reduced performance of the device.

[0004] In order to solve the above problems, this application proposes a cleaning device for PCB circuit board processing. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a cleaning device for PCB circuit board processing, which has the characteristics of preventing adjacent PCB circuit boards from contacting each other, avoiding limiting the cleaning area, making the cleaning area more thorough, improving the use effect of the device, and meeting actual use needs.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A cleaning device for PCB circuit board processing, comprising a cleaning box and ultrasonic transducers fixedly mounted on the bottom of the cleaning box through steel plates and arranged symmetrically, an ultrasonic generator being provided on one side of the ultrasonic transducer, a shell bottom cover being fixedly mounted on the lower surface of the cleaning box, the ultrasonic generator being fixed to the inner side wall of the shell bottom cover, a clamping assembly being installed inside the cleaning box, the clamping assembly comprising a bottom plate arranged inside the cleaning box, an L-shaped bracket fixed on the upper surface of the bottom plate and arranged symmetrically, and a plurality of groups of strip seats fixed on the upper surface of the bottom plate and arranged equidistantly, a contact plate being fixed on the side of the upper surface of the bottom plate close to the strip seat, an extrusion block being slidably connected to the inside of the strip seat, and two springs being symmetrically arranged being fixed between the extrusion block and the strip seat.

[0007] As a preferred cleaning device for PCB circuit board processing of the utility model, the surface of the strip seat is provided with a movable groove adapted to the extrusion block, the extrusion block and the strip seat are slidably connected through this movable groove, a pull rod is fixed on one side of the extrusion block, and the surface of the strip seat is provided with a through hole adapted to the pull rod, the pull rod and the strip seat are slidably connected through this through hole.

[0008] As a preferred embodiment of the cleaning device for PCB circuit board processing of the present invention, a side panel is fixed on the outside of the cleaning box close to the L-shaped bracket, and an electric push rod is fixedly installed between the side panel and the L-shaped bracket.

[0009] As a preferred cleaning device for PCB circuit board processing of the utility model, the inner side wall of the cleaning box is provided with a strip groove, and a limit rod is provided in the strip groove, and a symmetrically arranged connecting plate is slidably connected between the two groups of the limit rods, and a U-shaped rod is slidably connected to the inside of the connecting plate, and a lower pressure plate is fixedly installed on the bottom of the U-shaped rod, and a symmetrically arranged fixing plate is fixed on the surface of the U-shaped rod, and a spring 1 is wound around the side of the U-shaped rod surface close to the fixing plate, and the two ends of the spring 1 are respectively fixedly connected to the fixing plate and the connecting plate, and a locking bolt is threadedly connected to the side of the cleaning box surface close to the connecting plate, and the locking bolt fits in with the surface of the connecting plate.

[0010] As a preferred cleaning device for PCB circuit board processing of the utility model, the limit rod and the cleaning box are fixedly connected, the surface of the connecting plate is provided with a circular hole 1 adapted to the limit rod, the connecting plate and the limit rod are slidably connected through this circular hole 1, the connecting plate is provided with a circular hole 2 adapted to the U-shaped rod, the U-shaped rod and the connecting plate are slidably connected through this circular hole 2.

[0011] As a preferred cleaning device for PCB circuit board processing of the utility model, a drying assembly is installed on the cleaning box, and the drying assembly includes a support plate fixedly installed on the outside of the cleaning box and an air pump and an air pipe fixed to the output end of the air pump fixed to the support plate by bolts. The surface of the air pipe is connected and fixed with multiple groups of equidistantly arranged air nozzles, one end of the air nozzle passes through the outside of the cleaning box and extends to the inside of the cleaning box, and the two ends of the air pipe are fixedly connected to the cleaning box through a fixing seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting up a clamping component, since the PCB circuit boards are separated vertically one by one, adjacent PCB circuit boards will not come into contact during cleaning, avoiding limiting the cleaning area, making the cleaning area more thorough, improving the use effect of the device, and meeting actual use needs. In addition, a drying component is added to this mechanism, which can effectively remove moisture from the PCB circuit boards, prevent circuit failure or corrosion caused by moisture, improve work efficiency, and further improve the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the bottom plate and L-shaped bracket and other connecting parts of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the air pump, air pipe and other connecting parts in the utility model.

[0019] In the figure: 1. Cleaning box; 2. Ultrasonic transducer; 3. Ultrasonic generator; 4. Clamping assembly; 401. Bottom plate; 402. L-shaped bracket; 403. Bar seat; 404. Extrusion block; 405. Resistance plate; 406. Pull rod; 407. Limit rod; 408. Connecting plate; 409. U-shaped rod; 410. Spring 1; 411. Locking bolt; 412. Lower pressure plate; 413. Electric push rod; 414. Spring 2; 5. Drying assembly; 501. Support plate; 502. Air pump; 503. Air pipe; 504. Air nozzle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1 As shown:

[0023] A cleaning device for PCB circuit board processing includes a cleaning box 1 and ultrasonic transducers 2 fixedly mounted on the bottom of the cleaning box 1 by steel plates and arranged symmetrically. An ultrasonic generator 3 is provided on one side of the ultrasonic transducer 2. A shell bottom cover is fixedly mounted on the lower surface of the cleaning box 1, and the ultrasonic generator 3 is fixed to the inner wall of the shell bottom cover.

[0024] In this embodiment: In order to solve the technical problems existing in the prior art, as disclosed in the background technology above, "the existing PCB circuit board processing cleaning device has certain disadvantages when used. First, multiple groups of PCB circuit boards are placed in contact and mixed for cleaning, which easily makes it impossible to clean the contacted side of the PCB circuit boards. The cleaning area is limited, resulting in incomplete cleaning and reduced use effect of the device." In terms of combined use, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve this technical problem, a clamping component 4 and a drying component 5 are added to this application document, and the electrical equipment involved in this product are all powered by an external power supply.

[0025] More specifically:

[0026] like Figures 1-4 As shown:

[0027] A clamping assembly 4 is installed inside the cleaning box 1. The clamping assembly 4 includes a bottom plate 401 arranged inside the cleaning box 1, an L-shaped bracket 402 fixed on the upper surface of the bottom plate 401 and arranged symmetrically, and a plurality of strip seats 403 fixed on the upper surface of the bottom plate 401 and arranged equidistantly. A contact plate 405 is fixed on the side of the upper surface of the bottom plate 401 close to the strip seat 403. An extrusion block 404 is slidably connected to the interior of the strip seat 403. Two springs symmetrically arranged are fixed between the extrusion block 404 and the strip seat 403. 414. A movable groove adapted to the extrusion block 404 is provided on the surface of the strip seat 403, and the extrusion block 404 and the strip seat 403 are slidingly connected through this movable groove. A pull rod 406 is fixed on one side of the extrusion block 404, and a through hole adapted to the pull rod 406 is provided on the surface of the strip seat 403, and the pull rod 406 and the strip seat 403 are slidingly connected through this through hole. A side panel is fixed on the outside of the washing box 1 close to the L-shaped bracket 402, and an electric push rod 413 is fixedly installed between the side panel and the L-shaped bracket 402.

[0028] In this embodiment, when the PCB circuit board processing cleaning device is in use, when the PCB circuit board is to be cleaned, the electric push rod 413 is first started, thereby driving the L-shaped bracket 402 to move upward, and driving the bottom plate 401 to move upward synchronously until the bottom plate 401 is moved out of the cleaning box 1, and then pressing the extrusion block 404 so that the extrusion block 404 compresses the spring 2 414 until a certain opening is generated between the extrusion block 404 and the contact plate 405, and the edge of the PCB circuit board is stuck between the extrusion block 404 and the contact plate 405. During this process, the rebound of the spring 2 414 drives the extrusion block 404 to squeeze the contact plate 405, thereby squeezing and fixing the PCB circuit board. Subsequently, by starting the electric push rod 413, the L-shaped bracket 402 is driven to move downward, and the bottom plate 401 and the PCB circuit board are driven to move downward synchronously. Until it moves to the inside of the cleaning box 1, then the power cord is connected to the external power supply, and then cleaning liquid is added to the water inside the cleaning box 1. Then, the ultrasonic transducer 2 and the ultrasonic generator 3 are operated by operating the control panel (not shown in the figure). The high-frequency oscillation signal emitted by the ultrasonic generator 3 is converted into high-frequency mechanical oscillation by the ultrasonic transducer 2 and propagated into the medium cleaning liquid. The ultrasonic wave radiates forward in the cleaning liquid in a sparse and dense manner, causing the liquid to flow and generate tens of thousands of tiny bubbles. The tiny bubbles in the liquid vibrate under the action of the sound field to clean the PCB circuit boards. Since the PCB circuit boards are separated vertically one by one, adjacent PCB circuit boards will not come into contact during cleaning, avoiding the cleaning area from being limited, making the cleaning area more thorough, improving the use effect of the device, and meeting actual use needs.

[0029] Going further;

[0030] In an optional embodiment, a strip groove is provided on the inner wall of the cleaning box 1, and a limiting rod 407 is provided in the strip groove. A symmetrically arranged connecting plate 408 is slidably connected between the two sets of limiting rods 407. The interior of the connecting plate 408 is slidably connected to a U-shaped rod 409. A lower pressure plate 412 is fixedly installed at the bottom of the U-shaped rod 409. A symmetrically arranged fixing disk is fixed on the surface of the U-shaped rod 409. A spring 410 is wound around the side of the U-shaped rod 409 close to the fixing disk. The two ends of the spring 410 are respectively connected to the fixing disk and the connecting plate. The connecting plate 408 is fixedly connected, the limiting rod 407 and the cleaning box 1 are fixedly connected, the surface of the connecting plate 408 is provided with a circular hole 1 that is compatible with the limiting rod 407, and the connecting plate 408 and the limiting rod 407 are slidingly connected through this circular hole 1, and the connecting plate 408 is provided with a circular hole 2 that is compatible with the U-shaped rod 409, and the U-shaped rod 409 and the connecting plate 408 are slidingly connected through this circular hole 2, and a locking bolt 411 is threadedly connected to the side of the surface of the cleaning box 1 close to the connecting plate 408, and the locking bolt 411 fits the surface of the connecting plate 408.

[0031] In this embodiment, the connecting plate 408 is slid so that the connecting plate 408 slides on the limit rod 407 and at the same time stretches the U-shaped rod 409 upward. At the same time, the U-shaped rod 409 drives the spring 1 410 to stretch. At this time, the U-shaped rod 409 drives the lower pressure plate 412 to move upward until the lower pressure plate 412 is located on the upper part of the PCB circuit board. At this time, when the connecting plate 408 is moved to the top of the PCB circuit board, the U-shaped rod 409 is released. The spring 1 410 rebounds and drives the U-shaped rod 409 and the lower pressure plate 412 to move downward, so that the lower pressure plate 412 is pressed against the upper surface of the PCB circuit board, thereby increasing the stability of the PCB circuit board clamping and avoiding tipping. The connecting plate 408 is squeezed and fixed by rotating the locking bolt 411, so that the connecting plate 408 is not easy to move.

[0032] Going further;

[0033] In an optional embodiment, a drying assembly 5 is installed on the cleaning box 1, and the drying assembly 5 includes a support plate 501 fixedly installed on the outside of the cleaning box 1, and an air pump 502 and an air pipe 503 fixed to the output end of the air pump 502 are fixed to the support plate 501 by bolts. The surface of the air pipe 503 is connected and fixed with multiple groups of equidistantly arranged air nozzles 504. One end of the air nozzle 504 passes through the outside of the cleaning box 1 and extends to the inside of the cleaning box 1. The two ends of the air pipe 503 are fixedly connected to the cleaning box 1 through a fixing seat.

[0034] In this embodiment, the air pump 502 is then started, and the generated gas is discharged into the air pipe 503 and discharged through the air nozzle 504 on the air pipe 503. The discharged gas is used to dry the cleaned PCB circuit board. Drying can effectively remove moisture from the PCB circuit board, prevent circuit failure or corrosion caused by moisture, improve work efficiency, and further enhance the use effect of the device.

[0035] The working principle and use process of the present invention are as follows: when using the cleaning device for PCB circuit board processing, when cleaning the PCB circuit board, first start the electric push rod 413, and then drive the L-shaped bracket 402 to move up, and drive the bottom plate 401 to move up synchronously until the bottom plate 401 is moved out of the cleaning box 1, and then press the extrusion block 404, so that the extrusion block 404 compresses the spring 2 414 until a certain opening is generated between the extrusion block 404 and the contact plate 405, and the edge of the PCB circuit board is stuck between the extrusion block 404 and the contact plate 405. During this process, the rebound of the spring 2 414 drives the extrusion block 404 to squeeze the contact plate 405, thereby squeezing and fixing the PCB circuit board, and then through By starting the electric push rod 413, the L-shaped bracket 402 is driven to move downward, and the bottom plate 401 and the PCB circuit board are driven to move downward synchronously until they move to the inside of the cleaning box 1, and then the connecting plate 408 is slid so that the connecting plate 408 slides on the limit rod 407 and at the same time, the U-shaped rod 409 is stretched upward. At the same time, the U-shaped rod 409 drives the spring 1 410 to stretch. At this time, the U-shaped rod 409 drives the lower pressure plate 412 to move upward until the lower pressure plate 412 is located on the upper part of the PCB circuit board. At this time, when the connecting plate 408 is moved to the top of the PCB circuit board, the U-shaped rod 409 is released, and the spring 1 410 rebounds and drives the U-shaped rod 409 and the lower pressure plate 412 to move downward, so that the lower pressure plate 412 is squeezed and contacts the upper surface of the PCB circuit board. Thereby, the stability of the PCB circuit board clamping can be increased to avoid tipping over. Then, the power cord is connected to the external power supply, and then the cleaning liquid is added to the water inside the cleaning box 1. Then, the ultrasonic transducer 2 and the ultrasonic generator 3 are operated by operating the control panel (not shown in the figure). The high-frequency oscillation signal emitted by the ultrasonic generator 3 is converted into high-frequency mechanical oscillation by the ultrasonic transducer 2 and propagated into the medium cleaning liquid. The ultrasonic wave radiates forward in the cleaning liquid in a sparse and dense manner, causing the liquid to flow and generate tens of thousands of tiny bubbles. The tiny bubbles in the liquid vibrate under the action of the sound field to clean the PCB circuit board. Since the PCB circuit boards are separated vertically one by one, the adjacent PCB circuit boards are cleaned at the same time. The circuit board will not come into contact, thus avoiding a restricted cleaning area, making the cleaning area more thorough, improving the use effect of the device, and meeting actual use needs. After the cleaning is completed, the electric push rod 413 drives the bottom plate 401 to move upward, and at this time drives multiple groups of PCB circuit boards to move upward synchronously. At this time, the PCB circuit board resists the lower pressure plate 412 to move upward, and the lower pressure plate 412 drives the U-shaped rod 409 and stretches the spring 1 410. Due to the contraction force of the spring 1 410, the downward pressure of the U-shaped rod 409 is applied, making the contact between the lower pressure plate 412 and the PCB circuit board more stable, until the bottom plate 401 moves up to the specified position, and then the air pump 502 is started, and the generated gas is discharged into the air pipe 503 and discharged through the air nozzle 504 on the air pipe 503.The exhausted gas is used to dry the cleaned PCB circuit board. Drying can effectively remove moisture from the PCB circuit board, prevent circuit failure or corrosion caused by moisture, improve work efficiency, and further improve the use effect of the device.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cleaning device for PCB circuit board processing, comprising a cleaning box (1) and ultrasonic transducers (2) fixedly mounted on the bottom of the cleaning box (1) by steel plates and arranged symmetrically, an ultrasonic generator (3) being arranged on one side of the ultrasonic transducer (2), a shell bottom cover being fixedly mounted on the lower surface of the cleaning box (1), and the ultrasonic generator (3) being fixed on the inner side wall of the shell bottom cover, characterized in that: A clamping assembly (4) is installed inside the cleaning box (1), and the clamping assembly (4) comprises a bottom plate (401) arranged inside the cleaning box (1), an L-shaped bracket (402) fixed on the upper surface of the bottom plate (401) and arranged symmetrically, and a plurality of groups of strip seats (403) fixed on the upper surface of the bottom plate (401) and arranged equidistantly, a resistance plate (405) is fixed on one side of the upper surface of the bottom plate (401) close to the strip seat (403), an extrusion block (404) is slidably connected inside the strip seat (403), and symmetrically arranged springs (414) are fixed between the extrusion block (404) and the strip seat (403).

2. A PCB circuit board processing cleaning device according to claim 1, characterized in that: The surface of the strip seat (403) is provided with a movable groove that is compatible with the extrusion block (404), and the extrusion block (404) and the strip seat (403) are slidably connected through this movable groove. A pull rod (406) is fixed on one side of the extrusion block (404), and the surface of the strip seat (403) is provided with a through hole that is compatible with the pull rod (406), and the pull rod (406) and the strip seat (403) are slidably connected through this through hole.

3. A PCB circuit board processing cleaning device according to claim 2, characterized in that: A side plate is fixed to the outside of the cleaning box (1) on one side close to the L-shaped bracket (402), and an electric push rod (413) is fixedly installed between the side plate and the L-shaped bracket (402).

4. A PCB circuit board processing cleaning device according to claim 3, characterized in that: The inner wall of the cleaning box (1) is provided with a strip groove, and a limiting rod (407) is arranged in the strip groove, and a connecting plate (408) arranged symmetrically is slidably connected between two groups of the limiting rods (407), and a U-shaped rod (409) is slidably connected inside the connecting plate (408), and a lower pressure plate (412) is fixedly installed at the bottom of the U-shaped rod (409), and a symmetrically arranged fixing disk is fixed on the surface of the U-shaped rod (409), and a spring (410) is wound around the side of the surface of the U-shaped rod (409) close to the fixing disk, and the two ends of the spring (410) are respectively fixedly connected to the fixing disk and the connecting plate (408), and a locking bolt (411) is threadedly connected to the side of the surface of the cleaning box (1) close to the connecting plate (408), and the locking bolt (411) and the surface of the connecting plate (408) are in contact with each other.

5. A PCB circuit board processing cleaning device according to claim 4, characterized in that: The limiting rod (407) is fixedly connected to the cleaning box (1); a circular hole one matching the limiting rod (407) is provided on the surface of the connecting plate (408); the connecting plate (408) and the limiting rod (407) are slidably connected via the circular hole one; the connecting plate (408) is provided with a circular hole two matching the U-shaped rod (409); the U-shaped rod (409) and the connecting plate (408) are slidably connected via the circular hole two.

6. A PCB circuit board processing cleaning device according to claim 5, characterized in that: A drying assembly (5) is installed on the cleaning box (1), and the drying assembly (5) comprises a support plate (501) fixedly installed on the outside of the cleaning box (1), and an air pump (502) and an air pipe (503) fixed to the output end of the air pump (502) are fixed to the support plate (501) by bolts, and a plurality of groups of equidistantly arranged air nozzles (504) are connected and fixed on the surface of the air pipe (503), one end of the air nozzle (504) passes through the outside of the cleaning box (1) and extends to the inside of the cleaning box (1), and the two ends of the air pipe (503) are fixedly connected to the cleaning box (1) through a fixing seat.

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