Fixing device for cutting excess materials of PCB drill bit cutting edge rod
By designing a fixing device for the mounting plate, material tray, limiting plate, and pressure assembly, the displacement and vibration problems of the drill bit cutting edge during the cutting process were solved, achieving high-precision and high-efficiency cutting results and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG DINGTAI HIGH-TECH CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional drill bit cutting processes lack effective fixing devices, making them susceptible to external interference during transport, resulting in displacement and vibration. This affects cutting accuracy and consistency, and the cut surface is uneven, leading to material waste and increased production costs.
Design a fixing device that includes a mounting plate, a material tray, a limiting plate, and a pressing assembly. The drill bit cutting edge is pressed and positioned by a pressing belt and a guide roller to ensure stability during conveying and improve cutting accuracy and efficiency.
It improves the precision and consistency of drill bit cutting, reduces material waste, lowers production costs, and increases production efficiency.
Smart Images
Figure CN224182185U_ABST
Abstract
Description
Fixing device for cutting PCB drill bit cutting edge scrap Technical Field
[0001] This utility model relates to the field of machining equipment technology, specifically to a fixing device for cutting PCB drill bit cutting edge scrap. Background Technology
[0002] In the complex manufacturing process of modern printed circuit boards (PCBs), the drill bit cutting edge is a core component for drilling, and its performance directly affects the quality and efficiency of the entire PCB manufacturing process. As electronic products rapidly evolve towards higher density and higher precision, the precision requirements for PCB drilling have increased to the micron and even nanometer levels. Simultaneously, production efficiency needs to be significantly improved to meet the growing market demand. Against this backdrop, the manufacturing process of the drill bit cutting edge is particularly crucial, requiring multiple extremely precise and rigorous steps, including cutting, grinding, and coating. Each step is like a key gear in a precision instrument, interconnected and collectively determining the quality of the final product.
[0003] Among these processes, the cutting process is fundamental and crucial. It bears the heavy responsibility of precisely cutting drill bit cutting edges from raw material rods to meet specific length requirements. However, traditional cutting processes have revealed many serious problems in actual operation. During the feed stage of the drill bit cutting edge rods, due to the lack of a well-designed and effective fixing device, the rods are highly susceptible to interference from external factors during transport. When the cutting moment arrives, uncontrollable displacement or severe vibration often occurs. This displacement and vibration have a fatal impact on cutting accuracy, causing deviations in the cutting length, failing to meet the stringent dimensional accuracy requirements of high-precision PCB manufacturing, and also significantly compromising the consistency of cutting, resulting in inconsistent quality across batches of products.
[0004] Furthermore, due to the lack of effective clamping devices in traditional processes, the drill bit cutting edge is highly susceptible to loosening or shifting during the cutting process. Once this occurs, the cut surface becomes uneven, making it difficult to maintain a smooth surface. This not only severely impacts the subsequent processing performance of the drill bit cutting edge—for example, uneven grinding during the grinding process due to the uneven base surface—leading to uneven grinding and affecting the sharpness and lifespan of the cutting edge, but more seriously, these surface defects often result in significant waste of raw materials. Every drill bit cutting edge scrapped due to poor cutting represents an increase in production costs, including raw material costs, processing costs, and time costs. These intertwined problems not only significantly slow down production progress, resulting in lower-than-expected production efficiency, but also significantly increase production costs, placing a heavy burden on PCB manufacturers and becoming a major obstacle to further industry development and enhanced competitiveness. Summary of the Invention
[0005] To address the aforementioned issues, this utility model provides a fixing device for cutting PCB drill bit cutting edge scrap, which enhances the clamping of the drill bit cutting edge during transport, facilitating continuous subsequent cutting operations and improving work efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixing device for cutting PCB drill bit edge scrap, comprising a mounting plate, a material tray on the mounting plate, a material groove on the side wall of the material tray, a limiting plate above the material tray, a receiving tray below the material tray, and a pressing component for fixing the material in the material groove on one side of the material tray.
[0007] As a further improvement to the above technical solution:
[0008] The pressing assembly includes a guide roller mounted on a mounting plate, and the guide roller is provided with a pressing band that fits against the outer wall of the material tray.
[0009] The compression band is ring-shaped, the number of guide rollers is at least two, and a tension roller is provided on the mounting plate between the two guide rollers.
[0010] The pressing band has a smooth surface on one side facing the material tray, and guide teeth are provided on the other side. The side wall of the guide roller is provided with a limiting groove that cooperates with the guide teeth.
[0011] The limiting groove is coaxially distributed with the material trough.
[0012] The material tray is provided with a feeding area that fits against the pressing belt, and the feeding area is located between the limiting plate and the receiving tray.
[0013] The arc length of the feeding area is less than half the circumference of the material tray.
[0014] The inner side of the limiting plate is provided with a positioning seat that connects to the mounting plate, and the lower part of the limiting plate is provided with an arc-shaped groove that matches the contour of the material tray.
[0015] The beneficial effects of this utility model embodiment are as follows: The fixing device for cutting PCB drill bit edge scrap includes a mounting plate, a material tray is provided on the mounting plate, a material groove is provided on the side wall of the material tray, a limit plate is provided above the material tray, and a receiving tray is provided below. A pressing component is provided on one side of the material tray to fix the material in the material groove. Through the design of the pressing component, when the material moves to the feeding area, pressure is applied to the material towards the material tray, thereby positioning the material, facilitating continuous cutting operations and improving work efficiency. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 is a schematic diagram of the material tray in this utility model;
[0018] Figure 3 is a schematic diagram of the installation structure of the clamping belt in this utility model;
[0019] Figure 4 is a schematic diagram of the guide roller in this utility model;
[0020] Figure 5 is a schematic diagram of the structure of the compression belt in this utility model.
[0021] In the diagram: 1. Mounting plate; 2. Material tray; 3. Material trough; 4. Limiting plate; 5. Receiving tray; 6. Guide roller; 7. Pressing belt; 8. Guide teeth; 9. Limiting groove; 10. Feeding area; 11. Positioning seat; 12. Arc groove. Detailed Implementation
[0022] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0023] As shown in Figure 1-2, a mounting plate 1 is vertically placed on a base. A material tray 2 is mounted on one side of the mounting plate 1, and a drive motor that rotates the material tray 2 is mounted on the other side. Material grooves 3 are evenly distributed along the circumference of the material tray 2. A limiting plate 4 is mounted above the material tray 2. The inner side of the limiting plate 4 is connected to the mounting plate 1 via a positioning seat 11. The lower part has an arc-shaped groove 12 that matches the material tray 2. The limiting plate 4 can fix the material in the material groove 3 when it enters the material groove 3. The opening width of the material groove 3 gradually decreases from top to bottom. The depth of the material trough 3 is less than the diameter of the material, allowing it to rotate with the material tray 2. A receiving tray 5 is installed below the material tray 2 to collect the material after cutting. The area between the limiting plate 4 and the receiving tray 5 is the material feeding area 10 for cutting operations. The arc length of this area is less than half the circumference of the material tray 2. A pressing component is installed on one side of the material tray. When the material moves to the feeding area 10, pressure is applied to the material towards the material tray 2, thereby positioning the material, facilitating continuous cutting operations and improving work efficiency.
[0024] As shown in Figure 3-5, the pressing assembly includes a pressing belt 7, which is made of rubber or wear-resistant PP material. This material is low-cost and can prevent friction between the pressing belt and the material. The pressing belt 7 is arranged in a ring, and the mounting plate 1 is equipped with guide rollers 6 for mounting the pressing belt 7. There are at least two guide rollers 6 to ensure that the pressing belt 7 can rotate in a ring. A tension roller is installed between the two pressing rollers 6 to adjust the tension of the pressing belt 7. The pressing belt 7 has a smooth surface facing the material tray 2, and the other side is designed with guide teeth 8. The guide roller 6 is equipped with a limiting groove 9 that works with the guide teeth 8. When the two mesh, they can prevent the pressing belt 7 from slipping. The guide teeth 8 and the limiting groove 9 are coaxially distributed, so that the pressing belt 7 can rotate synchronously with the material tray 2, keeping the contact position between the material tray 2 and the pressing belt 7 relatively stationary. This reduces friction between the material and the pressing belt 7, reduces equipment wear, and prevents the material from rotating during the conveying process, which would affect subsequent switching and operation.
[0025] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0028] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A fixing device for cutting PCB drill bit edge scrap, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a material tray (2), the side wall of the material tray (2) is provided with a material trough (3), a limit plate (4) is provided above the material tray (2), a receiving tray (5) is provided below, and a pressing component is provided on one side of the material tray (2) to fix the material in the material trough (3).
2. The PCB drill edge bar excess material cutting fixing device according to claim 1, characterized in that: The pressing assembly includes a guide roller (6) disposed on the mounting plate (1), and the guide roller (6) is provided with a pressing band (7) that fits against the outer wall of the material tray (2).
3. The PCB drill edge bar scrap cutting fixture of claim 2, wherein: The pressing band (7) is annular, the number of guide rollers (6) is at least two, and the mounting plate (1) is provided with a tension roller located between the two guide rollers (6).
4. The apparatus according to claim 2, wherein: The pressing band (7) has a smooth surface on one side facing the material tray (2), and a guide tooth (8) is provided on the other side. The guide roller (6) has a limiting groove (9) on its side wall that works in conjunction with the guide tooth (8).
5. The apparatus according to claim 4, wherein: The limiting groove (9) is coaxially distributed with the material trough (3).
6. The fixing device for cutting PCB drill bit edge scrap according to claim 2, characterized in that: The material tray (2) is provided with a feeding area (10) that fits against the pressing band (7), and the feeding area (10) is located between the limiting plate (4) and the receiving tray (5).
7. The PCB drill edge bar scrap cutting fixture of claim 6, wherein: The arc length of the feeding area (10) is less than half the circumference of the tray (2).
8. The apparatus according to claim 1, wherein: The inner side of the limiting plate (4) is provided with a positioning seat (11) connected to the mounting plate (1), and the lower part of the limiting plate (4) is provided with an arc groove (12) that matches the contour of the material tray (2).