A kind of anti-falling board auxiliary jig structure for small size PCB production

Abstract

The utility model discloses a kind of anti-falling board auxiliary jig structures for small size PCB production, it is related to auxiliary jig technical field, and it includes: substrate bearing plate, multiple support platforms and multiple drainage open area are equipped on the substrate bearing plate, the end of the support platform is provided with clamping point, the lower side notch of the drainage open area extends to the bottom surface of substrate bearing plate, the upper side four corners of the substrate bearing plate are all installed with support seat, adjusting screw is screwed through in the support seat, the inner end of the adjusting screw is rotatably connected with clamping piece, gauze is laid on the substrate bearing plate, and the four corners of the gauze are connected with four clamping pieces respectively. The utility model is cooperatively designed by gauze and drainage open area, and gauze tension offsets water flow impact force, prevents PCB board displacement, and drainage open area accelerates liquid discharge, compared with traditional single anti-falling board structure, reduces the downtime of cleaning process.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary fixture technology, specifically to an anti-drop auxiliary fixture structure for the production of small-sized PCB boards. Background Technology

[0002] As electronic devices become smaller and denser, PCB sizes are continuously shrinking and thicknesses are gradually decreasing, especially in consumer electronics, medical devices, and the Internet of Things (IoT) sectors, where the demand for small-sized PCBs (80×150mm and below) is increasing significantly. During PCB manufacturing processes, such as immersion tin and immersion silver treatments, high-pressure solutions are required in cleaning equipment to ensure efficient reactions.

[0003] Currently, traditional auxiliary fixtures create support points by milling deep grooves into the substrate plate, with the remaining areas hollowed out to allow for chemical exchange. However, during the washing process, the displacement caused by the impact of high-pressure water flow can easily lead to the plate detaching from the support platform, resulting in plate dropping and affecting production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary fixture structure for preventing board drop in the production of small-sized PCBs, so as to solve the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-drop auxiliary fixture structure for small-size PCB production, comprising:

[0006] The substrate support plate has multiple support platforms and multiple drainage hollow areas. The end of each support platform is provided with a locking protrusion. The lower groove of each drainage hollow area extends to the bottom surface of the substrate support plate. Support seats are installed at the four upper corners of the substrate support plate. An adjusting screw is threaded through the support seat. The inner end of the adjusting screw is rotatably connected to a clamping member. A mesh is laid on the substrate support plate, and the four corners of the mesh are respectively connected to the four clamping members.

[0007] Preferably, the clamping component includes a movable seat, a clamping groove is provided on the side of the movable seat away from the adjusting screw, an adjusting bolt is threadedly nested on the top of the movable seat, and the lower end of the adjusting bolt extends into the clamping groove and is rotatably connected to an extrusion block, which can effectively clamp the mesh, and the clamping is simple and convenient.

[0008] Preferably, the upper four corners of the substrate support plate are provided with sliding grooves, the lower opening of the sliding grooves extends to the bottom surface of the substrate support plate, and the bottom of the movable seat is fixed with a slider. The slider is slidably nested in the sliding groove, so that the movable seat moves stably on the movable seat and avoids deviation.

[0009] Preferably, the substrate support plate is made of aluminum alloy, which has high structural strength and is easy to process and form.

[0010] Preferably, the mesh is made of 120-mesh polyester fiber, and the surface of the mesh is coated with a Teflon hydrophobic coating. The tension value of the mesh is controlled at 10-15 N / cm by calibration with a tension meter. 2 120-mesh polyester fiber provides strength support, and the Teflon hydrophobic coating significantly reduces drug residue adhesion.

[0011] Preferably, the end of the adjusting screw away from the clamping member is connected to a rotating head, and the adjusting screw is provided with a scale mark. The rotating head can easily drive the adjusting screw to rotate, and in conjunction with the scale mark on the adjusting screw, the displacement of the clamping member can be easily and accurately adjusted.

[0012] Preferably, the bottom wall of the clamping groove and the lower side wall of the extrusion block are provided with anti-slip texture, which can effectively fix the mesh.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. Through the coordinated design of the mesh and the drainage hollow area, the mesh tension counteracts the impact of water flow and prevents PCB board displacement. At the same time, the drainage hollow area accelerates the discharge of the cleaning solution. Compared with the traditional single anti-drop structure, it reduces the downtime of the cleaning process.

[0015] 2. The mesh structure of the gauze reduces the surface area of ​​the water film, accelerates drainage, and reduces residual water by more than 90%.

[0016] 3. The mesh is clamped and fixed by four clamping parts, making the mesh installation simple and convenient, and also easy to disassemble and replace. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front view of the present invention;

[0020] Figure 3 This is a schematic diagram of the substrate support plate structure of this utility model;

[0021] Figure 4This is a schematic diagram of the clamping component structure of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Substrate support plate; 2. Support platform; 3. Drainage perforated area; 4. Support base; 5. Adjusting screw; 6. Clamping component; 7. Mesh screen; 8. Moving base; 9. Clamping groove; 10. Adjusting bolt; 11. Extrusion block; 12. Slide groove; 13. Slider; 14. Rotating head; 15. Positioning protrusion. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figures 1 to 4 The illustrated anti-drop auxiliary fixture structure for small-size PCB production includes:

[0026] The substrate support plate 1 has multiple support platforms 2 and multiple drainage hollow areas 3. The end of the support platform 2 is provided with a locking protrusion 15. The lower groove of the drainage hollow area 3 extends to the bottom surface of the substrate support plate 1. Support seats 4 are installed at the four upper corners of the substrate support plate 1. Adjusting screws 5 are threaded through the support seats 4. The inner end of the adjusting screws 5 is rotatably connected to clamping parts 6. A mesh 7 is laid on the substrate support plate 1. The four corners of the mesh 7 are respectively connected to the four clamping parts 6.

[0027] The clamping component 6 includes a movable seat 8. A clamping groove 9 is provided on the side of the movable seat 8 away from the adjusting screw 5. An adjusting bolt 10 is threaded into the top of the movable seat 8. The lower end of the adjusting bolt 10 extends into the clamping groove 9 and is rotatably connected to an extrusion block 11, which can effectively clamp the mesh 7. The clamping is simple and convenient. The bottom wall of the clamping groove 9 and the lower side wall of the extrusion block 11 are provided with anti-slip textures, which can effectively fix the mesh 7.

[0028] The upper four corners of the substrate support plate 1 are provided with sliding grooves 12. The lower opening of the sliding groove 12 extends to the bottom surface of the substrate support plate 1. The bottom of the movable seat 8 is fixed with a slider 13. The slider 13 slides and nests in the sliding groove 12, so that the movable seat 8 moves stably on the movable seat 8 and avoids deviation. The bottom wall of the clamping groove 9 and the lower side wall of the extrusion block 11 are provided with anti-slip texture, which can effectively fix the mesh 7.

[0029] Mesh 7 is made of 120-mesh polyester fiber. The surface of mesh 7 is coated with a Teflon hydrophobic coating. The tension value of the mesh is controlled at 10-15 N / cm by calibrating with a tension meter. 2120-mesh polyester fiber provides strength support, and the Teflon hydrophobic coating significantly reduces drug residue adhesion.

[0030] The end of the adjusting screw 5 away from the clamping member 6 is connected to a rotating head 14. The adjusting screw 5 is marked with a scale. The rotating head 14 can easily drive the adjusting screw 5 to rotate. With the help of the scale markings on the adjusting screw 5, the displacement of the clamping member 6 can be adjusted accurately.

[0031] In this utility model, the substrate carrier plate 1 is provided with multiple support platforms 2 and multiple drainage hollow areas 3. The end of the support platform 2 is provided with a locking protrusion 15. The PCB board is placed on the support platform 2, and then a mesh 7 is covered on the substrate carrier plate 1. The four corners of the mesh 7 are connected to the clamping pieces 6 on the four corners of the substrate carrier plate 1. The PCB board is located under the mesh 7. The tension of the mesh 7 offsets the impact of the water flow and prevents the PCB board from shifting. At the same time, the drainage hollow area 3 accelerates the discharge of the liquid. Compared with the traditional single anti-drop structure, it reduces the downtime of the cleaning process.

[0032] Mesh 7 is made of 120-mesh polyester fiber. The surface of mesh 7 is coated with a Teflon hydrophobic coating. The tension value of the mesh is controlled at 10-15 N / cm by calibrating with a tension meter. 2 120-mesh polyester fiber provides strength support, and Teflon hydrophobic coating significantly reduces drug residue adhesion.

[0033] When the mesh 7 is connected to the clamping member 6, the corner of the mesh 7 is inserted into the clamping groove 9 on the corresponding clamping member 6 and is located below the clamping groove 9. Then, the adjusting bolt 10 is rotated to make the pressing block 11 move down and press and fix the mesh 7. The mesh 7 is easy and convenient to install and easy to disassemble and replace.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fixture structure for preventing board drop during small-size PCB production, characterized in that, include: The substrate support plate (1) is provided with multiple support platforms (2) and multiple drainage hollow areas (3). The end of the support platform (2) is provided with a locking protrusion (15). The lower groove of the drainage hollow area (3) extends to the bottom surface of the substrate support plate (1). Support seats (4) are installed at the four upper corners of the substrate support plate (1). An adjusting screw (5) is threaded through the support seat (4). The inner end of the adjusting screw (5) is rotatably connected to a clamping member (6). A mesh (7) is laid on the substrate support plate (1). The four corners of the mesh (7) are respectively connected to the four clamping members (6).

2. The anti-drop auxiliary fixture structure for small-size PCB production according to claim 1, characterized in that: The clamping member (6) includes a movable seat (8), and a clamping groove (9) is provided on the side of the movable seat (8) away from the adjusting screw (5). An adjusting bolt (10) is threadedly nested on the top of the movable seat (8), and the lower end of the adjusting bolt (10) extends into the clamping groove (9) and is rotatably connected to a pressing block (11).

3. The anti-drop auxiliary fixture structure for small-size PCB production according to claim 1, characterized in that: The substrate support plate (1) has four upper corners with grooves (12), the lower opening of the groove (12) extends to the bottom surface of the substrate support plate (1), and the bottom of the movable seat (8) is fixed with a slider (13), which slides and is nested in the groove (12).

4. The anti-drop auxiliary fixture structure for small-size PCB production according to claim 1, characterized in that: The substrate support plate (1) is made of aluminum alloy.

5. The anti-drop auxiliary fixture structure for small-size PCB production according to claim 1, characterized in that: The mesh (7) is made of 120-mesh polyester fiber and the surface of the mesh (7) is coated with a Teflon hydrophobic coating.

6. The anti-drop auxiliary fixture structure for small-size PCB production according to claim 1, characterized in that: The adjusting screw (5) is connected to a rotating head (14) at the end away from the clamping member (6), and the adjusting screw (5) is provided with scale markings.

7. The anti-drop auxiliary fixture structure for small-size PCB production according to claim 1, characterized in that: The bottom wall of the clamping groove (9) and the lower side wall of the extrusion block (11) are both provided with anti-slip texture.

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