Smt universal tray

Abstract

The utility model relates to tray technical field especially relates to a kind of SMT general tray, including tray main body, fixed installation is carried out on the scale on tray main body, the sliding clamping strip mechanism for adjusting clamping spacing is movably installed on the tray main body, mobile support mechanism is provided on the tray main body, sliding clamping strip mechanism includes the side sliding groove symmetrically opened on the tray main body, adjustable edge is movably installed on the tray main body, and adjustable edge is close to the side of mobile support mechanism and is provided with support flange. The utility model is through the collaborative design of sliding clamping strip mechanism and mobile support mechanism, realizes the quick adaptation of fixture to different size PCB board, only needs to loosen locking screw when using, sliding adjustable edge is to the corresponding position indicated by scale, then push sliding boss to make limit convex strip close to PCB board, preliminary fixation can be completed, need not special tool or complex debugging, ensure that small-batch diversified product can realize with to with production, greatly shorten production preparation cycle.

Description

Technical Field

[0001] This utility model relates to the field of tray technology, and in particular to a universal SMT tray. Background Technology

[0002] Surface mount technology is a core process in modern electronic product manufacturing. During the production process, printed circuit boards need to be supported by trays, and a series of processes such as solder paste printing, component mounting and reflow soldering are completed on the trays. However, in current industrial production, especially in the R&D, prototyping and emergency production stages characterized by small batches and diversified products, traditional tray fixtures have revealed significant limitations.

[0003] Currently, the common practice in existing technologies is to customize special trays for specific PCB boards. Although such special trays have the advantage of high stability in large-scale mass production, the production of special trays requires multiple stages such as design, processing, and debugging, which takes a long time and lacks flexibility. Moreover, as the number of product types increases, the number of special fixtures also accumulates, resulting in high fixture management costs and large storage space occupation. Furthermore, once the product life cycle ends, the corresponding special trays are scrapped, which will cause a great waste of resources. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a universal SMT tray, which solves the technical problems of long production cycles, low flexibility, and significant resource waste associated with existing dedicated trays. It also has the advantage of being able to flexibly and quickly adapt to PCB boards of different sizes and specifications.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a universal SMT tray, including a tray body, a scale fixedly installed on the tray body, a sliding locking mechanism for adjusting the clamping distance movably installed on the tray body, and a movable support mechanism provided on the tray body. After the operator places the PCB board on the tray body, the sliding locking mechanism and the movable support mechanism together clamp and fix the PCB board. The sliding locking mechanism includes side sliding grooves symmetrically opened on the tray body. An adjustable edge is movably installed on the tray body. A support flange is provided on the side of the adjustable edge near the movable support mechanism. Several mounting bases are evenly spaced on the adjustable edge. Spring buckles are provided on the mounting bases. After the position of the adjustable edge is fixed, the spring buckles can press and limit the PCB board.

[0006] Preferably, each end of the adjustable edge is provided with a locking screw, which passes through the inside of the side sliding groove. When the operator tightens the locking screw, the position of the adjustable edge can be fixed, and when the locking screw is loosened, the adjustable edge can slide.

[0007] Preferably, the movable support mechanism includes an adjustment groove formed on the tray body. A sliding protrusion is movably installed inside the adjustment groove. A limiting protrusion is fixedly installed on the side of the sliding protrusion near the adjustable edge. After the PCB board is placed, one side will contact the limiting protrusion and the other side will contact the support flange. Furthermore, the spring clip will press it tightly to prevent the PCB board from falling off during processing.

[0008] Preferably, a circular magnet is fixedly installed on the sliding protrusion, and an iron sheet is fixedly installed inside the adjusting groove. After the sliding protrusion moves, the circular magnet can be attracted and fixed to the iron sheet.

[0009] Preferably, several adjusting grooves and sliding protrusions are provided to support the PCB board from the bottom and prevent the PCB board from deforming.

[0010] Preferably, the bottom of the tray body is provided with a positioning post, the position of which matches the positioning hole on the SMT equipment, to ensure that the tray body can be accurately positioned on the equipment.

[0011] By employing the above technical solution, this utility model provides a universal SMT tray, which has at least the following beneficial effects: 1. This utility model achieves rapid adaptation of the fixture to PCB boards of different sizes through the coordinated design of the sliding locking mechanism and the moving support mechanism. When using it, you only need to loosen the locking screw, slide the adjustable edge to the corresponding position indicated by the scale, and then push the sliding protrusion to make the limiting protrusion close to the PCB board to complete the initial fixation. No special tools or complicated debugging are required, which ensures that small batches of diversified products can be produced as soon as they arrive, and greatly shortens the production preparation cycle.

[0012] 2. This utility model, through the coordinated design of the sliding clamping mechanism and the moving support mechanism, adopts a composite clamping scheme with rigid limiting on one side and elastic pressing on the other side, providing the PCB board with stability and protection far exceeding that of traditional fixtures. It can not only effectively prevent the PCB board from shifting or falling during the high-speed transmission and vibration of the SMT line, but also avoid damage to the board edge components that may be caused by rigid clamping through the elastic buffering effect. At the same time, multiple sliding protrusions at the bottom will jointly support the board body, which can effectively prevent deformation during reflow. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mobile support mechanism in this utility model; Figure 3 This is a schematic diagram of the sliding card bar mechanism in this utility model; Figure 4 This is a schematic diagram of the sliding protrusion in this utility model.

[0014] In the diagram: 1. Tray body; 2. Scale; 3. Sliding locking mechanism; 301. Side sliding groove; 302. Adjustable edge; 303. Support flange; 304. Mounting base; 305. Spring buckle; 306. Locking screw; 4. Moving support mechanism; 401. Adjusting groove; 402. Sliding protrusion; 403. Limiting protrusion; 404. Circular magnet. Detailed Implementation

[0015] 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.

[0016] Example 1 Current technologies commonly employ custom-designed trays for specific PCB boards. While these trays offer high stability in large-scale production, their manufacturing involves multiple stages, including design, processing, and debugging, resulting in a lengthy production cycle and a lack of flexibility. Furthermore, as product types increase, the number of dedicated jigs accumulates, leading to high jig management costs, significant storage space requirements, and the scrapping of the corresponding trays once the product's lifecycle ends, resulting in substantial resource waste. To address these shortcomings in existing technologies, such as... Figures 1-4 As shown, this embodiment proposes a universal SMT tray, which enables the fixture to quickly adapt to PCB boards of different sizes. The universal tray includes a tray body 1, a scale 2 fixedly installed on the tray body 1, a sliding clamping mechanism 3 for adjusting the clamping distance movably installed on the tray body 1, and a movable support mechanism 4 provided on the tray body 1. After the operator places the PCB board on the tray body 1, the sliding clamping mechanism 3 and the movable support mechanism 4 will clamp and fix the PCB board together.

[0017] Specifically, the sliding strip mechanism 3 includes side sliding grooves 301 symmetrically opened on the tray body 1. An adjustable edge 302 is movably installed on the tray body 1. A support flange 303 is provided on the side of the adjustable edge 302 near the movable support mechanism 4. Several mounting bases 304 are evenly spaced on the adjustable edge 302. Spring buckles 305 are provided on the mounting bases 304. After the position of the adjustable edge 302 is fixed, the spring buckles 305 can press and limit the PCB board. Locking screws 306 are provided at both ends of the adjustable edge 302. The locking screws 306 pass through the inside of the side sliding grooves 301. When the operator tightens the locking screws 306, the position of the adjustable edge 302 can be fixed. When the locking screws 306 are loosened, the adjustable edge 302 can slide.

[0018] Specifically, the movable support mechanism 4 includes an adjustment groove 401 formed on the tray body 1. A sliding protrusion 402 is movably installed inside the adjustment groove 401. Several adjustment grooves 401 and sliding protrusions 402 are respectively provided to support the PCB board from the bottom and prevent the PCB board from deforming. A limiting protrusion 403 is fixedly installed on the side of the sliding protrusion 402 near the adjustable edge 302. After the PCB board is placed, one side will contact the limiting protrusion 403 and the other side will contact the support flange 303. Furthermore, the spring buckle 305 will press it to prevent the PCB board from falling off during processing. A circular magnet 404 is fixedly installed on the sliding protrusion 402. An iron sheet is fixedly installed inside the adjustment groove 401. After the sliding protrusion 402 moves, the circular magnet 404 can be attracted and fixed to the iron sheet. A positioning post is provided at the bottom of the tray body 1. The position of the positioning post matches the positioning hole on the SMT equipment to ensure that the tray body 1 can be accurately positioned on the equipment.

[0019] As can be seen from the above, when using this tray to fix the PCB board, the worker will first loosen the locking screw 306, so that the adjustable edge 302 can slide along the side sliding groove 301, thereby adjusting the distance between the adjustable edge 302 and the sliding protrusion 402 until the supporting flange 303 is roughly aligned with one side edge of the PCB board.

[0020] Subsequently, the sliding protrusion 402 is pushed along the adjustment groove 401 so that the limiting protrusion 403 contacts the PCB board. After adjustment, the circular magnet 404 will be magnetically attracted and fixed to the iron sheet in the adjustment groove 401, thus achieving initial fixation.

[0021] Next, place the PCB board on the tray body 1, so that one side is close to the limiting protrusion 403 and the other side is close to the supporting flange 303. At this time, the PCB board has been initially limited on the horizontal plane. Subsequently, the elastic force of the spring buckle 305 will continue to act on the side of the PCB board, pressing it firmly against the limiting protrusion 403 on the opposite side, forming a stable clamping state with rigid limiting on one side and elastic pressing on the other side.

[0022] Subsequently, the tray body 1 will precisely enter the production line by utilizing the cooperation between the positioning pins and the positioning holes on the SMT equipment to complete the subsequent printing, placement, reflow soldering and other processes.

[0023] This embodiment achieves rapid adaptation of the fixture to PCBs of different sizes through the collaborative design of the sliding clamping mechanism 3 and the moving support mechanism 4. During use, simply loosen the locking screw 306, slide the adjustable edge 302 to the corresponding position indicated by the scale 2, and then push the sliding protrusion 402 to make the limiting protrusion 403 press against the PCB to complete the initial fixation. No special tools or complex adjustments are required, ensuring that small-batch, diverse products can be produced immediately upon arrival, greatly shortening the production preparation cycle. Moreover, this embodiment, through the collaborative design of the sliding clamping mechanism 3 and the moving support mechanism 4, adopts a composite clamping scheme with rigid limiting on one side and elastic pressing on the other, providing the PCB with stability and protection far exceeding traditional fixtures. This not only effectively prevents the PCB from shifting or falling during high-speed transmission and vibration in the SMT line, but also avoids damage to components on the board edge that may be caused by rigid clamping through elastic buffering. At the same time, multiple sliding protrusions 402 at the bottom work together to support the board body, effectively preventing deformation during reflow.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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. A universal SMT tray, comprising a tray body (1), wherein a scale (2) is fixedly mounted on the tray body (1), characterized in that: A sliding clip mechanism (3) for adjusting the clamping distance is movably installed on the pallet body (1), and a movable support mechanism (4) is provided on the pallet body (1). The sliding strip mechanism (3) includes side sliding grooves (301) symmetrically opened on the pallet body (1), an adjustable edge (302) is movably installed on the pallet body (1), a support flange (303) is provided on the side of the adjustable edge (302) near the movable support mechanism (4), a number of mounting bases (304) are equally spaced on the adjustable edge (302), and spring buckles (305) are provided on the mounting bases (304).

2. The SMT universal tray according to claim 1, characterized in that: The adjustable edge (302) is provided with locking screws (306) at both ends, and the locking screws (306) pass through the inside of the side sliding groove (301).

3. The SMT universal tray according to claim 1, characterized in that: The movable support mechanism (4) includes an adjustment groove (401) opened on the pallet body (1), a sliding protrusion (402) is movably installed inside the adjustment groove (401), and a limiting protrusion (403) is fixedly installed on the side of the sliding protrusion (402) near the adjustable edge (302).

4. The SMT universal tray according to claim 3, characterized in that: A circular magnet (404) is fixedly installed on the sliding protrusion (402), and an iron sheet is fixedly installed inside the adjusting groove (401).

5. The SMT universal tray according to claim 3, characterized in that: The adjusting groove (401) and the sliding protrusion (402) are provided in several forms.

6. The SMT universal tray according to claim 1, characterized in that: The bottom of the pallet body (1) is provided with positioning posts.

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