Universal pcba cleaning and fixing device

Abstract

This utility model discloses a universal PCBA cleaning and fixing device, belonging to the field of PCBA cleaning technology. It includes: a support body, an adjusting part, a fixing part, and a slot; the adjusting part is fixedly installed on the support body by a first fastener; the fixing part is adjustablely installed on the adjusting part by a second fastener and can move along the length direction of the adjusting part to adjust the fixed width of the PCBA; the slot is adjustablely installed on the fixing part by a third fastener and can rotate relative to the fixing part to adjust the fixed width of the PCBA; wherein, in a loose state, the second and third fasteners allow the fixing part relative to the adjusting part and the slot relative to the fixing part to adjust their positions, and in a tightened state, they lock the fixing part and the slot in the desired positions, so that the PCBA is firmly fixed when inserted into the slot.

Description

Technical Field

[0001] This utility model relates to the field of PCBA cleaning technology, and in particular to a universal PCBA cleaning and fixing device. Background Technology

[0002] Surface Mount Technology (SMT) is a circuit assembly technology that mounts surface-mount components onto the surface of a printed circuit board (PCB) or other substrates and assembles them using methods such as reflow soldering. Its basic process components include: solder paste printing, component placement, reflow soldering, PCBA cleaning, and inspection.

[0003] PCBA cleaning can be done manually or automatically. Fully automatic cleaning involves placing the PCBA in a cleaning basket and then using automated equipment to complete the cleaning process. Because PCBAs vary greatly in size and the number and type of components they contain, their weight can differ significantly. During cleaning, PCBAs may tilt or bump against each other, resulting in product scrap. Current solutions to this problem include using wire binding or creating specialized fixtures to secure the PCBAs. While these solutions achieve PCBA fixation, they still have several shortcomings:

[0004] 1) The wire binding process is cumbersome, requiring at least two fixations for each PCBA, which is time-consuming and not always secure. For PCBAs without fixed locations, wire binding is not an option, which has significant limitations.

[0005] 2) The high cost of specialized tooling significantly reduces the number of items that can be cleaned, severely impacting cleaning efficiency. Furthermore, even slight modifications to the PCB dimensions can render the tooling unusable, increasing production costs and wasting resources.

[0006] 3) PCBAs come in many varieties, resulting in the production of a large number of tooling fixtures. First, storing these fixtures takes up considerable space; second, management issues can easily arise; and finally, the usage process is cumbersome, requiring frequent inbound and outbound operations. Furthermore, the production of tooling fixtures requires a certain timeframe, and if they cannot be completed on time or are defective, they cannot be cleaned, thus affecting production progress.

[0007] Existing PCBA cleaning and fixing methods can no longer meet the cleaning needs of the increasing number of PCBA types. Utility Model Content

[0008] The technical problem solved by this utility model is to overcome the shortcomings of the prior art and provide a PCBA cleaning and fixing device that is highly versatile, easy to install, and highly reliable.

[0009] The technical solution of this utility model is: to provide a universal PCBA cleaning and fixing device, characterized in that it includes:

[0010] Support structure;

[0011] The adjustment part is fixedly installed on the support body by the first fastener;

[0012] The fixing part is adjustablely mounted on the adjusting part by means of a second fastener, and can move along the length direction of the adjusting part to adjust the fixed width of the PCBA;

[0013] The card slot is adjustablely mounted to the fixing part by a third fastener and can rotate relative to the fixing part to adjust the fixed width of the PCBA;

[0014] The second and third fasteners allow the fixed part to be adjusted relative to the adjusting part and the slot to be adjusted relative to the fixed part when they are loose, and lock the fixed part and the slot in the desired position when they are tightened, so that the PCBA is firmly fixed when inserted into the slot.

[0015] Furthermore, the support body is provided with a threaded hole, the first fastener is a screw, and the adjustment part is fixedly installed on the support body by screwing the screw into the threaded hole.

[0016] Furthermore, the adjusting part is provided with a slide rail or an elongated hole, and the fixing part is slidably connected to the slide rail or elongated hole through the second fastener to realize the adjustment of the fixed width of the PCBA.

[0017] Furthermore, there are multiple slots, which are evenly spaced along the length of the fixing part, for simultaneously fixing multiple PCBAs or providing multi-point support.

[0018] Furthermore, there are two supports arranged in parallel, and the adjustment part is symmetrically installed on the two supports.

[0019] Furthermore, there are two fixing parts, which are installed in parallel on the adjusting part, and each fixing part is provided with the slot.

[0020] Furthermore, the internal shape of the card slot matches the edge of the PCBA.

[0021] Furthermore, the internal shape of the slot is a V-shaped groove or a U-shaped groove.

[0022] Furthermore, the first fastener, the second fastener, and the third fastener are all screws.

[0023] Furthermore, the support body consists of four first columnar bodies; the adjustment part consists of two plate-shaped bodies with elongated holes along their length; the fixing part consists of two second columnar bodies; the two plate-shaped bodies are fixed to opposite sides of the four first columnar bodies; the two second columnar bodies are slidably connected to the elongated holes in a direction perpendicular to the plate-shaped bodies to achieve the adjustment of the fixed width; and there are multiple slots, which are evenly spaced along the length of the two second columnar bodies.

[0024] The advantages of this utility model compared with the prior art are as follows:

[0025] 1) This technical solution can fix the PCBA size range to 40mm*40mm~450mm*450mm. Compared with the existing special tooling, it has strong versatility, high flexibility, safety and reliability, and can be applied to most PCBAs, achieving cost reduction and efficiency improvement.

[0026] 2) This technical solution has a simple structure, is easy to operate, does not require a large amount of reserves, saves space, is easy to manage, and does not require complicated procedures.

[0027] 3) All components in this technical solution are not only durable and replaceable, but also simple to manufacture, less prone to errors, and save on the manufacturing cycle. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the cleaning and fixing device in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the support column in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the slide groove in an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the fixing rod in an embodiment of the present utility model;

[0032] Figure 5 This is a schematic diagram of the card slot in an embodiment of the present utility model;

[0033] Figure 6 This is a schematic diagram illustrating the usage scenario of the cleaning and fixing device in this embodiment of the present invention. Detailed Implementation

[0034] To better understand the technical solution of this utility model, the specific embodiments of this utility model are described below.

[0035] This utility model proposes a universal PCBA cleaning and fixing device, comprising: a support body, an adjusting part, a fixing part, and a slot; the adjusting part is fixedly installed on the support body by a first fastener; the fixing part is adjustablely installed on the adjusting part by a second fastener and can move along the length direction of the adjusting part to adjust the fixed width of the PCBA; the slot is adjustablely installed on the fixing part by a third fastener and can rotate relative to the fixing part to adjust the fixed width of the PCBA; wherein, in a loose state, the second and third fasteners allow the fixing part relative to the adjusting part and the slot relative to the fixing part to adjust their positions, and in a tightened state, the fixing part and the slot are locked in the desired positions, so that the PCBA is inserted into the slot and firmly fixed.

[0036] Preferably, the support body is provided with a threaded hole, the first fastener is a screw, and the adjusting part is fixedly installed on the support body by screwing the screw into the threaded hole.

[0037] Preferably, the adjusting part is provided with a slide rail or an elongated hole, and the fixing part is slidably connected to the slide rail or elongated hole by a second fastener to realize the adjustment of the fixed width of the PCBA.

[0038] Preferably, there are multiple slots, which are evenly spaced along the length of the fixing part, for simultaneously fixing multiple PCBAs or providing multi-point support.

[0039] Preferably, there are two supports arranged in parallel, and the adjustment parts are symmetrically installed on the two supports.

[0040] Preferably, there are multiple fixing parts, which are installed in parallel on the adjusting part, and each fixing part is provided with a slot.

[0041] Preferably, the internal shape of the card slot matches the edge of the PCBA.

[0042] Preferably, the internal shape of the slot is a V-shaped groove or a U-shaped groove.

[0043] Preferably, the first fastener, the second fastener, and the third fastener are all screws.

[0044] Preferably, the support body consists of four first columnar bodies; the adjustment part consists of two plate-shaped bodies with elongated holes along their length; the fixing part consists of two second columnar bodies; the two plate-shaped bodies are fixed to opposite sides of the four first columnar bodies; the two second columnar bodies are slidably connected to the elongated holes in a direction perpendicular to the plate-shaped bodies to achieve adjustment of the fixed width; and there are multiple slots, which are evenly spaced along the length of the two second columnar bodies.

[0045] The following is a specific embodiment of this utility model:

[0046] In this embodiment, a general-purpose PCBA cleaning and fixing device, such as Figure 1As shown, it includes a support column 1, a sliding groove 2, a fixing rod 3, and a locking groove 4. The support column 1, as shown... Figure 2 As shown, it is a cuboid with threaded holes for mounting a slide groove. Slide groove 2, as... Figure 3 As shown, it is a plate-like body with an elongated hole. Fixing rod 3, as... Figure 4 As shown, it is a cuboid with threaded holes for mounting slots. Slot 4, as... Figure 5 As shown, there are long slots inside that match the edges of the PCBA.

[0047] When using the PCBA cleaning and fixing device, pre-assembly is required: First, use screws to install the slide groove 2 into the threaded hole of the support column 1; then, use screws to install each slot 4 onto the fixing rod 3, but do not tighten the screws yet; finally, use screws to install the fixing rod 3 onto the slide groove 2, but do not tighten the screws yet. After pre-assembly, the slots 4 can be adjusted to adjust the PCBA cleaning angle according to cleaning needs to achieve the best cleaning effect; the fixing rod 3 can be adjusted according to the actual width of the PCBA. After adjusting the cleaning angle and PCBA width, tighten the screws. At this point, the fixing device is assembled. During cleaning, insert the PCBA into the slot 4 to achieve a firm, reliable, and stable fixation of the PCBA. Figure 6 As shown.

[0048] It is understood that this utility model has been described through embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific circumstances without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

[0049] The contents not described in detail in this utility model specification are common knowledge to those skilled in the art.

Claims

1. A universal PCBA cleaning fixture, characterized in that, include: Support structure; The adjustment part is fixedly installed on the support body by the first fastener; The fixing part is adjustablely mounted on the adjusting part by means of a second fastener, and can move along the length direction of the adjusting part to adjust the fixed width of the PCBA; The card slot is adjustablely mounted to the fixing part by a third fastener and can rotate relative to the fixing part to adjust the fixed width of the PCBA; The second and third fasteners allow the fixed part to be adjusted relative to the adjusting part and the slot to be adjusted relative to the fixed part when they are loose, and lock the fixed part and the slot in the desired position when they are tightened, so that the PCBA is firmly fixed when inserted into the slot.

2. The universal PCBA cleaning fixture device according to claim 1, wherein: The support body is provided with a threaded hole, the first fastener is a screw, and the adjustment part is fixedly installed on the support body by screwing the screw into the threaded hole.

3. The universal PCBA cleaning fixture device of claim 1, wherein: The adjusting part is provided with a slide rail or an elongated hole, and the fixing part is slidably connected to the slide rail or elongated hole through the second fastener to realize the adjustment of the fixed width of the PCBA.

4. The universal PCBA cleaning fixture of claim 1, wherein: The slots are multiple and are evenly spaced along the length of the fixing part, used to fix multiple PCBAs at the same time or provide multi-point support.

5. The universal PCBA cleaning fixture of claim 1, wherein: There are two supports arranged in parallel, and the adjustment part is symmetrically installed on the two supports.

6. The universal PCBA cleaning fixture of claim 1, wherein: There are two fixing parts, which are installed in parallel on the adjusting part, and each fixing part is provided with the slot.

7. The universal PCBA cleaning fixture of claim 1, wherein: The internal shape of the card slot matches the edge of the PCBA.

8. The universal PCBA cleaning fixture device of claim 7, wherein: The internal shape of the slot is a V-shaped groove or a U-shaped groove.

9. The universal PCBA cleaning fixture of claim 1, wherein: The first fastener, the second fastener, and the third fastener are all screws.

10. The universal PCBA cleaning fixture of claim 1, wherein: The support consists of four first columnar bodies; the adjustment part consists of two plate-shaped bodies with elongated holes along their length; the fixing part consists of two second columnar bodies; the two plate-shaped bodies are fixed to opposite sides of the four first columnar bodies; the two second columnar bodies are slidably connected to the elongated holes in a direction perpendicular to the plate-shaped bodies to achieve the adjustment of the fixed width; there are multiple slots, which are evenly spaced along the length of the two second columnar bodies.

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