Ultrasonic cleaning PCB jig

Abstract

The utility model discloses an ultrasonic cleaning PCB jig, and relates to the technical field of PCB cleaning. Comprising a cleaning jig, the cleaning jig comprises a jig sliding groove lower plate, a jig sliding groove upper plate and a supporting and fixing column arranged between the jig sliding groove lower plate and the jig sliding groove upper plate, a boss is arranged at the bottom of the jig sliding groove lower plate, and a groove matched with the boss is formed in the top of the jig sliding groove upper plate. The cleaning jigs are designed in a modularized mode, a plurality of cleaning jigs can be combined together to be placed into the cleaning equipment for cleaning through the bosses and the grooves, the situation that the cleaning jigs are staggered or fall off is avoided, the situation that the weight of a single cleaning jig is increased due to the fact that the cleaning number is increased is avoided, and the cleaning jigs are convenient to use after cleaning is completed. The PCB cleaning jig can be taken out one by one according to modularization, use is more convenient, the cleaning jig is easy to assemble, universality is high, machining and production are facilitated, the linear increase of PCB cleaning cost is reduced, and the PCB cleaning jig has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the field of PCB cleaning technology, specifically to an ultrasonic PCB cleaning fixture. Background Technology

[0002] Ultrasonic cleaning PCB fixtures are mainly used for cleaning PCBs in electronics factories or for cleaning reworked PCBs. During the PCB printing process, problems such as damaged stencils or improperly adjusted printing machines can cause misalignment or unevenness of the solder paste on the PCB pads. In such cases, the PCB needs to be cleaned and the solder paste reprinted.

[0003] Currently, there are various PCB cleaning equipment and tooling fixtures on the market. The wide variety of equipment makes it difficult for buyers to select the right model. Electronic factories mostly purchase cleaning equipment for stencil cleaning, and there are even more cleaning fixtures available. Basically, each product's fixture is designed for only one type of equipment or product, which can lead to incompatibility between equipment and fixtures, and vice versa. This incompatibility can cause the cost of PCB cleaning to rise sharply. Utility Model Content

[0004] This invention provides an ultrasonic cleaning PCB fixture to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic cleaning PCB fixture, comprising a cleaning fixture, the cleaning fixture comprising a lower fixture slide plate, an upper fixture slide plate, and a supporting and fixing column disposed between the lower fixture slide plate and the upper fixture slide plate, the lower fixture slide plate having a boss at its bottom, and the upper fixture slide plate having a groove matching the boss at its top.

[0006] Furthermore, the top of the fixture slide plate is provided with at least one product positioning slide, one end of which is closed and the other end is open.

[0007] Furthermore, the bottom of the upper plate of the fixture slide is provided with at least one product positioning slide, one end of which is closed and the other end is open.

[0008] Furthermore, the product positioning slide 1 and the product positioning slide 2 are arranged opposite to each other.

[0009] Furthermore, the number of the supporting and fixing columns is several, and the several supporting and fixing columns are respectively located on both sides of the product positioning slide groove one and the product positioning slide groove two.

[0010] Furthermore, positioning heads are provided at both ends of the supporting and fixing column.

[0011] Furthermore, both the lower plate and the upper plate of the fixture slide are provided with countersunk holes that fit into the two ends of the support and fixing column. The countersunk holes are fixed to the positioning heads at both ends of the support and fixing column by screws.

[0012] Compared with the prior art, this utility model provides an ultrasonic cleaning PCB fixture, which has the following beneficial effects:

[0013] This ultrasonic PCB cleaning fixture features a modular design. Multiple fixtures can be combined and placed inside the cleaning equipment using bosses and grooves, eliminating concerns about misalignment or falling of the fixtures. Furthermore, increasing the number of fixtures for cleaning does not increase the weight of individual fixtures. Once cleaning is complete, each fixture can be removed one by one according to its modular design, making it more convenient to use. The fixture is easy to assemble, highly versatile, and beneficial for manufacturing, significantly reducing PCB cleaning costs and demonstrating broad application prospects. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the boss structure of this utility model;

[0016] Figure 3 This is an exploded view of the cleaning fixture structure of this utility model;

[0017] Figure 4 This is an exploded view of the cleaning fixture structure of this utility model.

[0018] In the diagram: 1. Cleaning fixture; 11. Lower plate of fixture slide; 12. Upper plate of fixture slide; 13. Support and fixing column; 131. Positioning head; 14. Product positioning slide one; 15. Product positioning slide two; 16. Boss; 17. Groove; 18. Countersunk hole; 19. Screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model discloses an ultrasonic cleaning PCB fixture, including a cleaning fixture 1. The cleaning fixture 1 includes a lower fixture slide plate 11, an upper fixture slide plate 12, and a support and fixing column 13 disposed between the lower fixture slide plate 11 and the upper fixture slide plate 12. The bottom of the lower fixture slide plate 11 is provided with a boss 16, and the top of the upper fixture slide plate 12 is provided with a groove 17 that matches the boss 16. Since the cleaning fixture 1 is modularly designed, the design of the boss 16 and the groove 17 allows for increasing the cleaning quantity if there are many products to be cleaned. Another cleaning fixture 1 can be stacked with the groove 17 or boss 16 of the existing cleaning fixture 1 through the boss 16 or groove 17. As long as the equipment space allows, the quantity can be increased sequentially without increasing the weight of the entire fixture. When cleaning is completed, the products can be removed one by one in a modular fashion.

[0021] Specifically, the top of the lower plate 11 of the fixture slide is provided with at least one product positioning slide 14, one end of which is closed and the other end is open. The bottom of the upper plate 12 of the fixture slide is provided with at least one product positioning slide 15, one end of which is closed and the other end is open. The product positioning slides 14 and 15 are arranged opposite to each other. When the cleaning fixture 1 is loaded with the product to be cleaned, the worker holds the cleaning fixture 1 with one hand and aligns the product with the same side with the other hand. Simply push in the positioning slide 14 and the product positioning slide 2 15. The closed end of the product positioning slide 14 and the product positioning slide 2 15 can automatically limit the product. When the product is pushed to the bottom, it will automatically stop. Then put in the second product, the third product, and so on. Once one cleaning fixture 1 is full, it can be put into the cleaning equipment. When the second cleaning fixture 1 is full, the two cleaning fixtures 1 are combined together by the first boss 16 and the groove 17 and then directly pushed into the cleaning equipment. There is no need to worry about the two cleaning fixtures 1 being misaligned or falling off.

[0022] Specifically, there are several supporting and fixing columns 13, which are located on both sides of the product positioning slide 14 and the product positioning slide 2 15 respectively. The supporting and fixing columns 13 avoid the product positioning slide 14 and the product positioning slide 2 15, thus ensuring the connection stability of the fixture slide lower plate 11 and the fixture slide upper plate 12.

[0023] Specifically, both ends of the support fixing column 13 are provided with positioning heads 131, and the lower plate 11 and the upper plate 12 of the fixture slide are both provided with countersunk holes 18 that fit into both ends of the support fixing column 13. The countersunk holes 18 and the positioning heads 131 at both ends of the support fixing column 13 are fixed with screws 19. The positioning heads 131 and the countersunk holes 18 cooperate to ensure the connection stability between both ends of the support fixing column 13 and the lower plate 11 and the upper plate 12 of the fixture slide.

[0024] In summary, this ultrasonic PCB cleaning fixture features a modular design. Multiple cleaning fixtures can be combined and placed inside the cleaning equipment via bosses 16 and grooves 17 for cleaning. This eliminates concerns about misalignment or falling of multiple cleaning fixtures and prevents an increase in the weight of individual cleaning fixtures due to the increased number of cleaning units. Once cleaning is complete, the fixtures can be removed one by one in a modular fashion, making it more convenient to use. The cleaning fixture is simple to assemble, highly versatile, and conducive to processing and production, significantly reducing the cost of PCB cleaning and demonstrating broad application prospects.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic cleaning fixture for PCBs, comprising a cleaning fixture (1), characterized in that: The cleaning fixture (1) includes a lower fixture slide plate (11), an upper fixture slide plate (12), and a support and fixing column (13) disposed between the lower fixture slide plate (11) and the upper fixture slide plate (12). The lower fixture slide plate (11) has a boss (16) at its bottom, and the upper fixture slide plate (12) has a groove (17) that matches the boss (16) at its top.

2. The ultrasonic cleaning PCB fixture according to claim 1, characterized in that: The top of the fixture slide plate (11) is provided with at least one product positioning slide (14), one end of which is closed and the other end is open.

3. The ultrasonic cleaning PCB fixture according to claim 1, characterized in that: The bottom of the upper plate (12) of the fixture slide is provided with at least one product positioning slide (15), one end of the product positioning slide (15) is closed and the other end is open.

4. The ultrasonic cleaning PCB fixture according to claim 2, characterized in that: The product positioning slide 1 (14) and the product positioning slide 2 (15) are arranged opposite to each other.

5. The ultrasonic cleaning PCB fixture according to claim 1, characterized in that: The number of the supporting and fixing columns (13) is several, and the several supporting and fixing columns (13) are located on both sides of the product positioning slide groove one (14) and the product positioning slide groove two (15).

6. The ultrasonic cleaning PCB fixture according to claim 1, characterized in that: Both ends of the support fixing column (13) are provided with positioning heads (131).

7. The ultrasonic cleaning PCB fixture according to claim 1, characterized in that: The lower plate (11) and upper plate (12) of the fixture slide are both provided with countersunk holes (18) that are fitted to both ends of the support fixing column (13). The countersunk holes (18) are fixed to the positioning heads (131) at both ends of the support fixing column (13) by screws (19).

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