Rotary file for deburring
By introducing a threaded cylinder, threaded rod, conical block, and worm gear mechanism into the rotary file, the waste problem caused by the integrated cutting head and handle is solved, enabling convenient replacement and reliable installation of the cutting head, and reducing costs.
Patent Information
- Application Number
- CN202423080573.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The blade and handle of existing rotary files are integrated and cannot be replaced separately, resulting in wasted handles and increased costs.
A structure was designed that includes components such as a file body, mounting parts, threaded cylinder, threaded rod, conical block, locking block, and spring. The file head can be detached and reliably installed through threaded connection and worm gear mechanism, avoiding waste of the file handle.
It enables convenient replacement of the cutter head, reduces waste of the cutter holder, lowers replacement costs, and improves the reliability and speed of installation.
Smart Images

Figure CN223492225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary file technology, specifically a deburring rotary file. Background Technology
[0002] A file is made of carbon tool steel T12 or T13 through heat treatment and then quenching of the working part. It is a small production tool used to polish workpieces and is used for minor processing of the surface of metals, wood, leather, etc. A rotary file, on the other hand, is a tool used for processing and finishing materials. It is suitable for processing and finishing a variety of materials. Rotary files are usually made of carbide, which has high hardness and durability, and can be used to polish a variety of materials such as metal, wood, and plastic.
[0003] A search revealed a circular arc-shaped rotary file disclosed in Chinese patent CN212311043U. The key technical point of this file is that it solves the problems that existing files are all hand tools that can only grind workpieces in parallel and cannot be installed with other structures. A few installations are fixed by welding, which makes it impossible to disassemble and replace the file. Furthermore, existing files have limited functionality and low practicality.
[0004] However, it has been found in the above solutions and existing technologies that files will experience severe wear after long-term use, at which point the files need to be replaced. However, the files in the above solutions and existing technologies are all integrated with the blade head and handle, and the blade head cannot be replaced separately. This results in the handle needing to be replaced along with the blade head, causing waste of the handle and increasing the cost of the handle.
[0005] Therefore, a new solution is needed to address this problem. Utility Model Content
[0006] The existing technology mentioned above has the disadvantages and defects of having an integrated cutter head and handle, making it impossible to replace the cutter head separately, resulting in waste of the handle and increased cost.
[0007] This utility model discloses a deburring rotary file, comprising a file body and a mounting component. A threaded cylinder is rotatably connected to the inner wall of the mounting component, and a threaded rod is threadedly connected to the inner wall of the threaded cylinder. A conical block is fixedly connected to the left end of the threaded rod. The mounting component has two sliding grooves and a cavity inside. The inner wall of the cavity is slidably connected to the outer surface of the conical block. A locking block is slidably connected to the inner wall of each sliding groove. The inner wall of the file body has two locking slots. The outer surface of each locking block is in slidable contact with the inner wall of the corresponding locking slot. A spring is fixedly connected to the side of each locking block that is away from each other, and the other end of each spring is fixedly connected to the inner wall of the corresponding sliding groove.
[0008] Furthermore, each of the card blocks has a guide rod slidably connected to its inner wall, and both ends of each guide rod are fixedly connected to the interior of a corresponding sliding groove.
[0009] Furthermore, the inner wall of the mounting component has two limiting grooves, and a worm gear is rotatably connected to the inner wall of the mounting component.
[0010] Furthermore, each of the limiting grooves has two limiting rods slidably connected to its inner wall, and the left end of each limiting rod is fixedly connected to the right side of the conical block.
[0011] Furthermore, a worm wheel meshes with the outer surface of the worm, and the inner wall of the worm wheel is fixedly connected to the outer surface of the threaded cylinder.
[0012] Furthermore, two positioning blocks are fixedly connected to the outer surface of the mounting component, and a tool holder is fixedly connected to the right end of the mounting component.
[0013] Furthermore, two positioning grooves are provided on the right side of the file body, and the inner wall of each positioning groove is slidably connected to the outer surface of the corresponding positioning block.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model, by setting up components such as a slot, threaded cylinder, threaded rod, conical block, locking block, and spring, moves the file body, aligning the locking block with the slot. The spring ensures the locking block is pressed tightly inside the sliding groove. The rotation of the threaded cylinder causes the threaded rod to move to the left, driving the conical block to move and contact the locking block. Through the surfaces of the conical block and the locking block, the locking block moves relative to each other inside the sliding groove, compressing the spring. At this point, the locking block connects with the corresponding slot, locking the file body. Conversely, it achieves the effect of disassembling the file body. Thus, this device facilitates the disassembly and installation of the file body. When the file wears out after long-term use and needs replacement, only the blade head needs to be replaced, saving the cost of the handle and reducing resource waste.
[0016] 2. This utility model incorporates components such as a worm gear, worm wheel, positioning block, and positioning groove. The worm gear is installed on the inner wall of the mounting component and connected to it in a rotatable manner. Rotating the worm gear connects it to the worm wheel, allowing the worm wheel to rotate. The worm wheel's fixation to the threaded cylinder further enables the threaded cylinder to rotate, thus connecting it to the threaded rod. Two limiting rods are fixed to the right side of the conical block, and a limiting groove is provided to connect with the limiting rods, ensuring the conical block can only slide. This prevents the threaded rod from rotating under the action of the threaded cylinder. The worm gear and worm wheel ensure that the cutter head will not fall off after installation, guaranteeing the reliability of the cutter head installation. A positioning block is provided on the surface of the mounting component, and a positioning groove is provided on the right side of the file body. The connection between the positioning block and the positioning groove ensures the connection between the locking block and the locking groove, achieving positioning installation and improving installation speed. Attached Figure Description
[0017] 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:
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the connection relationship between the positioning block and the positioning groove of this utility model;
[0021] Figure 4 This is a schematic diagram of the connection structure between the worm and the worm wheel of this utility model;
[0022] Figure 5 This is a schematic diagram of the connection relationship between the conical block and the threaded rod of this utility model.
[0023] In the diagram: 1. File body; 2. Slot; 3. Mounting component; 4. Threaded cylinder; 5. Threaded rod; 6. Conical block; 7. Sliding groove; 8. Locking block; 9. Spring; 10. Guide rod; 11. Limiting rod; 12. Limiting groove; 13. Cavity; 14. Worm gear; 15. Worm wheel; 16. Positioning block; 17. Positioning groove; 18. Handle. Detailed Implementation
[0024] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model discloses a deburring rotary file, comprising a file body 1 and a mounting component 3. A threaded cylinder 4 is rotatably connected to the inner wall of the mounting component 3. The threaded cylinder 4 is mounted on the inner wall of the mounting component 3 and is configured as a rotatable connection to achieve a limiting effect on the threaded cylinder 4. A threaded rod 5 is threadedly connected to the inner wall of the threaded cylinder 4. The threaded rod 5 is mounted on the inner wall of the threaded cylinder 4 and connected to it. The threaded rod 5 can move laterally by rotating the threaded cylinder 4. A conical block 6 is fixedly connected to the left end of the threaded rod 5. The conical block 6 can be moved by moving the threaded rod 5.
[0026] like Figure 5 As shown, the mounting component 3 has two sliding grooves 7 and a cavity 13 inside. The sliding grooves 7 and the cavity 13 are located inside the mounting component 3 to achieve positioning of the sliding grooves 7 and the cavity 13. The inner wall of the cavity 13 is slidably connected to the outer surface of the conical block 6. The cavity 13 and the outer surface of the conical block 6 are set to slide to achieve the limiting effect of the conical block 6, ensuring that the conical block 6 can slide left and right. Each sliding groove 7 has a locking block 8 slidably connected to its inner wall. The locking block 8 is installed on the inner wall of the corresponding sliding groove 7 and is set to slide between them. The locking block 8 can be limited by the contour of the sliding groove 7. The surface of the locking block 8 has a slope. By contacting the surface of the conical block 6, the locking block 8 can slide on the inner wall of the sliding groove 7.
[0027] In a preferred embodiment, two slots 2 are formed on the inner wall of the file body 1. The slots 2 are formed on the inner wall of the file body 1 to achieve the positioning effect of the slots 2. The outer surface of each locking block 8 slides in contact with the inner wall of the corresponding slot 2. The slot 2 is adapted to the corresponding locking block 8. By moving the locking block 8, it can be connected with the corresponding slot 2, thereby enabling the file body 1 to be installed and disassembled.
[0028] In this embodiment, each locking block 8 has a spring 9 fixedly connected to the side of each locking block 8 that is far apart from each other. The spring 9 is installed on the side of the corresponding locking block 8 that is far apart from each other to achieve positioning installation of the spring 9. The other end of each spring 9 is fixedly connected to the inner wall of the corresponding sliding groove 7. The other end of the spring 9 is connected to the corresponding sliding groove 7 to achieve limiting of the other end of the spring 9. The spring 9 can press the locking block 8 tightly so that the locking block 8 is always located inside the mounting part 3 without the driving of the conical block 6.
[0029] Combination Figure 4 and Figure 5 Each locking block 8 has a guide rod 10 slidably connected to its inner wall. The guide rod 10 is installed on the inner wall of the corresponding locking block 8 and is slidably connected to it. Both ends of each guide rod 10 are fixedly connected to the interior of the corresponding sliding groove 7. The guide rod 10 is connected to the corresponding sliding groove 7 to realize the installation of the guide rod 10. By fixing the guide rod 10, the locking block 8 is limited.
[0030] In a preferred embodiment, two limiting grooves 12 are formed on the inner wall of the mounting member 3. The limiting grooves 12 are formed on the inner wall of the mounting member 3 to achieve positioning of the limiting grooves 12. A worm gear 14 is rotatably connected to the inner wall of the mounting member 3. The worm gear 14 is installed on the inner wall of the mounting member 3 and is rotatably connected to it to achieve the limiting effect of the worm gear 14.
[0031] In this embodiment, two limiting rods 11 are slidably connected to the inner wall of each limiting groove 12. The limiting rods 11 are installed on the inner wall of the corresponding limiting groove 12 and are set to a sliding connection. The limiting effect of the limiting rods 11 can be achieved by the contour of the limiting groove 12. The left end of each limiting rod 11 is fixedly connected to the right side of the conical block 6. The connection between the left end of the limiting rod 11 and the right side of the conical block 6 is set to a fixed connection, which can ensure that the conical block 6 will not rotate and can only slide laterally inside the cavity 13. This ensures that the threaded rod 5 can only slide laterally under the action of the threaded cylinder 4.
[0032] Looking back Figure 4 and Figure 5 The outer surface of the worm 14 is engaged with a worm wheel 15. The worm wheel 15 is placed below the worm 14 and connected to it. The rotation of the worm 14 will cause the worm wheel 15 to rotate. The inner wall of the worm wheel 15 is fixedly connected to the outer surface of the threaded cylinder 4. By fixing the worm wheel 15 to the threaded cylinder 4, the worm wheel 15 can drive the threaded cylinder 4 to rotate. By setting the worm 14 and worm wheel 15, a self-locking effect can be achieved to ensure that the cutter head will not come loose after installation.
[0033] In a preferred embodiment, two positioning blocks 16 are fixedly connected to the outer surface of the mounting member 3. The positioning blocks 16 are installed on the outer surface of the mounting member 3 and are set as fixed connections. The positioning blocks 16 can be moved by moving the mounting member 3. A tool holder 18 is fixedly connected to the right end of the mounting member 3. The tool holder 18 is installed on the right end of the mounting member 3 to realize the installation of the tool holder 18.
[0034] In this embodiment, two positioning grooves 17 are provided on the right side of the file body 1. The two positioning grooves 17 are provided on the right side of the file body 1 to achieve positioning of the positioning grooves 17. The inner wall of each positioning groove 17 is slidably connected to the outer surface of the corresponding positioning block 16, so that the positioning block 16 is adapted to the corresponding positioning groove 17. When the blade head is installed, the connection between the positioning block 16 and the positioning groove 17 can ensure that the slot 2 can be connected to the slot block 8.
[0035] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A deburring rotary file, comprising a file body (1) and a mounting component (3), characterized in that: The inner wall of the mounting component (3) is rotatably connected to a threaded cylinder (4), and the inner wall of the threaded cylinder (4) is threadedly connected to a threaded rod (5). The left end of the threaded rod (5) is fixedly connected to a conical block (6). The interior of the mounting component (3) has two sliding grooves (7) and a cavity (13). The inner wall of the cavity (13) is slidably connected to the outer surface of the conical block (6). The inner wall of each sliding groove (7) is slidably connected to a locking block (8). The inner wall of the file body (1) has two locking slots (2). The outer surface of each locking block (8) is slidably in contact with the inner wall of the corresponding locking slot (2). The side of each locking block (8) that is far away from each other is fixedly connected to a spring (9). The other end of each spring (9) is fixedly connected to the inner wall of the corresponding sliding groove (7).
2. The rotary file for deburring according to claim 1, characterized in that: Each of the card blocks (8) has a guide rod (10) slidably connected to its inner wall, and both ends of each guide rod (10) are fixedly connected to the interior of the corresponding sliding groove (7).
3. The rotary file for deburring according to claim 1, characterized in that: The inner wall of the mounting component (3) has two limiting grooves (12), and the inner wall of the mounting component (3) is rotatably connected to a worm gear (14).
4. A rotary file for deburring according to claim 3, characterized in that: Each of the limiting grooves (12) has two limiting rods (11) slidably connected to its inner wall, and the left end of each limiting rod (11) is fixedly connected to the right side of the conical block (6).
5. A rotary file for deburring according to claim 3, characterized in that: The outer surface of the worm (14) is engaged with a worm wheel (15), and the inner wall of the worm wheel (15) is fixedly connected to the outer surface of the threaded cylinder (4).
6. A rotary file for deburring according to claim 1, characterized in that: Two positioning blocks (16) are fixedly connected to the outer surface of the mounting component (3), and a knife handle (18) is fixedly connected to the right end of the mounting component (3).
7. A rotary file for deburring according to claim 6, characterized in that: The file body (1) has two positioning grooves (17) on its right side, and the inner wall of each positioning groove (17) is slidably connected to the outer surface of the corresponding positioning block (16).
Citation Information
Patent Citations
Arc-shaped rotary file
CN212311043U