A CNC center for sheet metal processing

Abstract

This application relates to the field of sheet metal processing, and in particular to a CNC center for sheet metal processing. The center includes a frame, a worktable and a sliding frame mounted on the frame. The sliding frame extends above the worktable and is slidably connected to a tool holder. The tool holder is connected to a tool head holder, which houses a tool head comprising a drill bit, a grinding head, and a reamer. The reamer has a scraper bar on its outer wall. The tool head holder is connected to a cleaning mechanism consisting of an air inlet pipe, an air inlet ring, an air inlet channel, and an air jet. The grinding head has a grinding plate on its side wall, with a cleaning port between adjacent grinding plates. The tool head holder and the tool holder are detachably connected via a mounting sleeve and bolts. The tool holder has a flared dust cover connected to a suction pipe with a fan. This application achieves the effect of completing drilling and grinding in one operation, improving work efficiency, reducing equipment footprint, making the inner wall of the hole smoother, preventing debris from scratching the hole wall, facilitating tool head replacement and cleaning, reducing debris and waste splashing and dust dispersion, and improving the working environment.

Description

Technical Field

[0001] This application relates to the field of sheet metal processing, and in particular to a CNC center for sheet metal processing. Background Technology

[0002] Currently, the manufacturing industry's demands for processing precision and efficiency are constantly increasing, prompting the sheet metal processing industry to develop towards greater efficiency and precision. Traditional single-function machine tools are no longer sufficient to meet the diversified needs of the market, while CNC machining centers, with their significant advantages of high precision and high efficiency, are gradually becoming the mainstream equipment in the sheet metal processing field. The application of CNC machining centers has greatly improved the quality and speed of sheet metal processing, driving the rapid development of the entire industry and meeting the production needs of many enterprises for high-quality sheet metal products. In high-end manufacturing industries such as automobile manufacturing and aerospace, the requirements for the precision and efficiency of sheet metal processing are extremely high, and the emergence of CNC machining centers has provided strong support for the development of these industries. It can realize the processing of sheet metal with complex shapes, ensuring product quality and performance, which is of great significance for improving the competitiveness of enterprises. In the past, in the sheet metal processing industry, the common practice to complete drilling and grinding operations was to use different equipment. One method was to use a specialized drilling machine for drilling operations, which could precisely control the position and depth of the drilling to ensure that the hole size met the requirements. Another method was to use a grinding machine to grind the sheet metal after drilling, which could make the inner wall of the hole smoother and flatter. In addition, some companies use manual tools to assist in localized fine processing to achieve better results. In some small processing plants, due to limited equipment, manual operation of hand tools may be relied upon more heavily for drilling and grinding. These traditional processing methods can meet production needs to a certain extent, but their limitations are becoming increasingly apparent as the manufacturing industry continues to develop. However, existing processing methods have significant drawbacks. Most existing CNC machining centers can only perform drilling or grinding operations independently, leading to frequent equipment or tool changes during processing. Frequent changes not only significantly reduce production efficiency and extend processing cycles but also increase labor costs, requiring more manpower for equipment and tool replacement and debugging. Furthermore, the use of multiple pieces of equipment increases the floor space required, undoubtedly increasing operating costs and management difficulties for companies with limited space. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned technical problems and provide a CNC center for sheet metal processing.

[0004] A CNC machining center for sheet metal includes a frame, a worktable mounted on the frame, a sliding frame extending above the worktable, a tool holder slidably connected to the sliding frame, a tool head holder connected to the tool holder, and a tool head mounted on the tool head holder. The tool head includes a drill bit and a grinding head connected to the drill bit, located on the side of the drill bit closer to the tool holder. By adopting this technical solution, when the user operates the machine, the sheet metal is placed on the worktable, the tool head operates, the drill bit drills a hole in the sheet metal, and the grinding head polishes the inner wall of the drilled hole, making the inner wall of the hole smoother and flatter. Drilling and polishing are completed in one step, replacing the traditional method of drilling and polishing on different equipment, improving work efficiency and reducing the space occupied by the equipment. Preferably, the tool head also includes a reamer, with a scraper bar on its outer side, located between the drill bit and the grinding head. By adopting this technical solution, when the user operates the machine, the scraper bar on the reamer scrapes off the burrs from the inner wall of the hole, making the inner wall of the hole smoother. Preferably, a cleaning mechanism is connected to the cutter head holder; the cleaning mechanism includes an air inlet pipe, an air inlet ring rotatably connected to the cutter head holder, an air inlet channel formed in the middle of the cutter head holder and the cutter head, the air inlet channel extending to the end of the drill bit, and an air jet nozzle formed at the end of the drill bit. By adopting the above technical solution, when the user uses the drill, the air inlet pipe guides the airflow into the air inlet ring, then into the air inlet channel, and finally ejects it through the air jet nozzle, blowing off the debris generated during drilling and preventing the debris from scratching the hole wall, thus increasing the roughness of the hole wall. Preferably, multiple abrasive plates are fixedly connected to the side wall of the grinding head, and multiple cleaning ports are formed between adjacent abrasive plates, communicating with the air inlet channel. By adopting the above technical solution, when the user uses the drill, the cleaning ports can also eject air outwards, blowing off the debris and dust generated during grinding, improving the cleanliness and smoothness of the hole. Preferably, the cutter head and the cutter head holder are detachably connected. By adopting the above technical solution, the cutter head will wear or be damaged after a period of use, requiring regular replacement. This facilitates the removal of the cutter head from the cutter holder for replacement or cleaning. Preferably, a mounting sleeve is fixedly connected to the cutter head, which is fitted onto the cutter head seat. A bolt is threaded onto the mounting sleeve to secure it to the cutter head seat. With this technical solution, the user can loosen the bolt to remove the mounting sleeve, thereby removing the cutter head. The engagement of the bolt and mounting sleeve facilitates the disassembly and installation of the cutter head. Preferably, a dust cover is fixedly connected to the cutter holder. This technical solution allows the dust cover to block dust and waste from the cutter head, reducing the scattering of debris and waste. Preferably, a material extraction pipe is connected to the dust cover, with a fan connected to the side of the pipe furthest from the dust cover. This technical solution allows the fan to extract dust from the dust cover, reducing dust dispersion and improving the working environment. Attached Figure Description

[0005] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0006] Figure 2 It is a sectional view of the tool holder, tool head holder, and tool head;

[0007] Figure 3 yes Figure 2 Enlarged view of part A;

[0008] Figure 4 This is an exploded view of the blade holder and the blade itself.

[0009] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Workbench; 12. Sliding frame; 13. Tool holder; 14. Tool head holder; 15. Tool head; 151. Drill bit; 152. Reamer; 1521. Material hanging rod; 153. Grinding head; 1531. Grinding plate; 154. Mounting cylinder; 2. Cleaning mechanism; 21. Air inlet pipe; 22. Air inlet ring; 23. Air inlet channel; 24. Air jet nozzle; 25. Cleaning port; 3. Dust cover; 31. Exhaust pipe. Detailed Implementation

[0010] The following will be combined with the appendix Figure 1-4 The technical solutions in the embodiments of this utility model are described in further detail below. The described embodiments are only possible technical implementations of this utility model, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are also within the protection scope of this utility model.

[0011] This application mainly adopts a CNC center for plate processing that integrates drilling and grinding functions, which achieves the effects of avoiding frequent equipment changes, improving efficiency and reducing floor space. The following is a further detailed description of this application.

[0012] Example 1

[0013] The sheet metal processing CNC center provided in this application embodiment refers to... Figure 1 and Figure 2 The system includes a frame 1, on which a worktable 11 is mounted. A sliding frame 12 extending above the worktable 11 is also mounted on the frame 1. A tool holder 13 is slidably connected to the sliding frame 12. A tool head holder 14 is connected to the tool holder 13. A tool head 15 is mounted on the tool head holder 14. This configuration allows the tool head 15 to move flexibly on the sliding frame 12 to process the sheet metal on the worktable 11. This achieves the effect of drilling and grinding in one step, improving work efficiency and reducing the equipment's footprint. The reason for this is that drilling and grinding functions are integrated into one machine, eliminating the need for frequent changes of equipment or tools.

[0014] Reference Figure 3 and Figure 4Specifically, the cutting head 15 includes a drill bit 151, an abrasive head 153, and a reamer 152. The drill bit 151 is typically made of a high-hardness material such as high-speed steel, and its structure is generally spiral-shaped. This shape helps to remove debris during drilling. A drill bit 151 made of carbide can also be used, suitable for harder materials. The abrasive head 153 is located on the side of the drill bit 151 near the tool holder 13. Multiple abrasive plates 1531 are fixedly connected to its side wall. These abrasive plates 1531 increase friction, resulting in better polishing. The abrasive plates 1531 can be made of silicon carbide or alumina. The reamer 152 is located between the drill bit 151 and the abrasive head 153. A scraper bar is provided on the outer side wall of the reamer 152. The scraper bar can be triangular or other shapes, effectively scraping off burrs from the inner wall of the hole, making the inner wall of the hole smoother.

[0015] The cutter head 15 and the cutter head seat 14 are detachably connected. Specifically, a mounting sleeve 154 is fixedly connected to the cutter head 15, and the mounting sleeve 154 is fitted onto the cutter head seat 14. A bolt is threaded onto the mounting sleeve 154 to secure it to the cutter head seat 14. When the cutter head 15 becomes worn or damaged after a period of use, the bolt can be loosened to remove the mounting sleeve 154, allowing the cutter head 15 to be removed for replacement or cleaning. This detachable connection facilitates the maintenance and replacement of the cutter head 15, extending the service life of the equipment.

[0016] The cutter head holder 14 is connected to a cleaning mechanism 2, which includes an air intake pipe 21 and an air intake ring 22. The air intake pipe 21 is used to guide external airflow into the air intake ring 22, which is rotatably connected to the cutter head holder 14. This rotatable connection allows for smoother air intake, and a sealed bearing or other connection method can also be used. An air intake channel 23 is provided in the middle of the cutter head holder 14 and the cutter head 15, extending to the end of the drill bit 151. An air jet nozzle 24 is provided at the end of the drill bit 151. When the air intake pipe 21 guides the airflow into the air intake ring 22, the airflow enters the air intake channel 23 through the air intake ring 22, and is finally ejected through the air jet nozzle 24, blowing off the debris generated during drilling and preventing the debris from scratching the hole wall and increasing the roughness of the hole wall.

[0017] In addition, multiple cleaning ports 25 are provided between adjacent grinding plates 1531. The cleaning ports 25 are connected to the air intake channels 23 in the middle of the cutter head seat 14 and the cutter head 15, so as to facilitate the blowing down of the debris and dust generated during grinding.

[0018] A dust cover 3, shaped like a trumpet, is fixedly connected to the tool holder 13. The dust cover 3 can be made of lightweight materials such as plastic, or metal, making it more robust and durable. The dust cover 3 blocks dust and waste generated by the tool head 15, reducing the scattering of debris and waste. A suction pipe is connected to the dust cover 3, with a fan connected to the side of the suction pipe furthest from the dust cover 3. When the fan operates, it extracts dust from inside the dust cover 3, reducing dust dispersion and improving the cleanliness of the working environment.

[0019] The implementation principle of this embodiment is as follows: The CNC machining center for sheet metal integrates drilling and grinding functions. Through a unique cutter head 15 design, drilling and grinding operations can be completed in one go, avoiding the problem of frequent equipment or tool changes in traditional processing methods, thus greatly improving production efficiency. Simultaneously, the cleaning mechanism 2 ensures the cleanliness and flatness of the hole walls, the detachable cutter head 15 facilitates maintenance and replacement, and the combination of the dust cover 3 and the material extraction pipe reduces dust pollution and improves the working environment. Compared with existing technologies, this embodiment not only improves work efficiency but also reduces labor costs and equipment footprint, bringing significant improvements and contributions to the sheet metal processing industry.

[0020] Example 2

[0021] The difference between this embodiment and the previous embodiment is that the air intake ring 22 of the cleaning mechanism 2 can be replaced by a sealed rotary joint. The sealed rotary joint can also achieve the functions of airflow introduction and rotation, and has better sealing performance, reducing airflow leakage. This alternative is more suitable for processing scenarios with high requirements for airflow control.

[0022] The implementation principle of this embodiment is as follows: replacing the air intake ring 22 with a sealed rotary joint improves the airflow introduction efficiency and sealing of the cleaning mechanism 2, further ensuring the jetting effect and enabling debris and dust to be removed more effectively, thereby improving the cleanliness and smoothness of the hole. Compared with the traditional air intake ring 22, the sealed rotary joint has better stability and reliability in some special processing environments, reducing the decline in processing quality caused by airflow leakage and other problems, and making beneficial improvements to the prior art. The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC center for processing sheet metal, characterized in that: The device includes a frame (1), a worktable (11) is provided on the frame (1), a sliding frame (12) is provided on the frame (1), the sliding frame (12) extends above the worktable (11), a tool holder (13) is slidably connected on the sliding frame (12), a tool head (15) seat (14) is connected on the tool holder (13), and a tool head (15) is provided on the tool head (15) seat (14). The tool head (15) includes a drill bit (151) and a grinding head (153) connected to the drill bit (151). The grinding head (153) is located on the side of the drill bit (151) near the tool holder (13).

2. The CNC center for sheet metal processing according to claim 1, characterized in that: The cutter head (15) also includes a reamer (152), and a scraper is provided on the outer side wall of the reamer (152). The reamer (152) is located between the drill bit (151) and the grinding head (153).

3. The CNC center for sheet metal processing according to claim 1, characterized in that: A cleaning mechanism (2) is connected to the cutter head (15) seat (14); the cleaning mechanism (2) includes an air inlet pipe (21), an air inlet ring (22) is rotatably connected to the cutter head (15) seat (14), an air inlet channel (23) is opened in the middle of the cutter head (15) seat (14) and the cutter head (15), the air inlet channel (23) extends to the end of the drill bit (151), and an air jet port (24) is opened at the end of the drill bit (151).

4. The CNC center for sheet metal processing according to claim 1, characterized in that: The side wall of the abrasive head (153) is fixedly connected to multiple abrasive plates (1531), and multiple cleaning ports (25) are opened between adjacent abrasive plates (1531). The cleaning ports (25) are connected to the air intake channel (23).

5. A CNC center for sheet metal processing according to claim 1, characterized in that: The cutter head (15) and the cutter head (15) seat (14) are detachably connected.

6. A CNC center for sheet metal processing according to claim 5, characterized in that: A mounting sleeve (154) is fixedly connected to the cutter head (15). The mounting sleeve (154) is used to be sleeved on the cutter head (15) seat (14). A bolt is threaded on the mounting sleeve (154) to tighten the mounting sleeve (154) and the cutter head (15) seat (14).

7. A CNC center for sheet metal processing according to claim 1, characterized in that: A dust cover (3) is fixedly connected to the tool holder (13).

8. A CNC center for sheet metal processing according to claim 7, characterized in that: A material extraction pipe is connected to the dust cover (3), and a fan is connected to the side of the material extraction pipe away from the dust cover (3).

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