Side fixing knurling cutter bar
By designing a side-fixed knurling tool holder, the problem of insufficient rigidity in existing knurling tools was solved, achieving a high-rigidity, low-cost knurling effect and improving the precision and flexibility of the product.
Patent Information
- Application Number
- CN202423027774.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing cutting knurling tools lack sufficient rigidity during knurling, resulting in burrs, flash, and incomplete extrusion of the knurling pattern.
A side-fixed knurling tool holder was designed, including a tool holder, rollers, pins and cover plates. By optimizing the connection structure, rigidity and strength are improved, and the tool holder can be used in different directions, thus improving flexibility and versatility.
The structure of the roller burnishing tool holder has been optimized, which has improved rigidity and precision, reduced debugging difficulty, lowered costs, and increased the flexibility and versatility of the product.
Smart Images

Figure CN223531808U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a knurling tool, belonging to the field of knurling tool technology, specifically relating to a side-fixed knurling tool holder. Background Technology
[0002] Knurling is a finishing process in metalworking that creates grooves or patterns on the surface of finished parts. This is achieved by pressing the desired pattern into the metal using a rotating tool. Knurling tools create ridge-like patterns on shafts, gears, tools, pipes, and other circular components. Historically, these textured patterns have been kept dimensionally consistent to create a uniform knurled surface. Knurling tool holders are primarily used on lathes, drilling machines, and other mechanical equipment to imprint various patterns or textures onto the workpiece surface through a rolling motion, increasing friction, enhancing aesthetics, or serving a marking purpose.
[0003] Existing knurling tools suffer from insufficient rigidity during the knurling process due to structural limitations. This leads to burrs, flash, and incomplete extrusion of the knurling pattern during the process. Utility Model Content
[0004] Purpose of the utility model: To provide a side-fixed knurling cutter holder to solve the problems mentioned above.
[0005] Technical solution: A side-fixed knurling cutter bar, comprising: the knurling cutter bar includes: a cutter bar, a roller, a pin, and a cover plate;
[0006] In a further embodiment, the head of the tool holder is provided with a roller mounting area, and the roller mounting area is provided with a mounting hole; the roller is fixedly mounted on the top of the roller mounting area at the head of the tool holder; the cover plate is fixedly mounted on the bottom of the roller mounting area at the head of the tool holder; the pin is simultaneously sleeved in the roller and the mounting hole to rotate the roller on the pin.
[0007] In a further embodiment, a first screw is provided inside the pin, and the first screw is sleeved inside the pin and fixedly connected to the cover plate.
[0008] In a further embodiment, the cover plate is fixedly connected to the bottom of the head roller mounting area of the tool bar by a second screw.
[0009] In a further embodiment, a gasket is provided between the roller and the top of the head roller mounting area of the cutter bar.
[0010] In a further embodiment, the gasket has a slot, and the slot is fixedly connected to the tool holder by a pin.
[0011] Beneficial Effects: This invention optimizes the knurling tool holder structure and features a non-standard design for specific industries and products. Through optimized connection structures, the rigidity and strength of the knurling tool holder are improved, reducing investment costs for users and simplifying debugging. Simultaneously, the roller installation method is optimized, allowing the structure to be converted into a left or right knurling tool holder depending on the user's operating conditions. This provides two application scenarios for a single tool holder, enhancing the flexibility and versatility of the product. Due to the optimized structural rigidity, product accuracy is significantly improved. Attached Figure Description
[0012] Figure 1 This is an exploded view of this utility model.
[0013] Figure 2 This is an isometric drawing of this utility model.
[0014] Figure 3 This is the front view of this utility model.
[0015] Figure 4 This is a partial sectional view of the present invention.
[0016] Reference numerals: 5. Tool holder; 3. Roller; 2. Pin; 7. Cover plate; 1. First screw; 8. Second screw; 4. Washer; 9. Slot; 6. Pin. Detailed Implementation
[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of 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.
[0019] In the description of this utility model, it should be noted that, 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 based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0020] A side-fixed knurling tool holder includes: a tool holder 5, a roller 3, a pin 2, and a cover plate 7.
[0021] In one embodiment, such as Figures 1 to 4 As shown, the head of the tool holder 5 is provided with a roller mounting area, and the roller mounting area is provided with a mounting hole; the roller 3 is fixedly mounted on the top of the roller mounting area at the head of the tool holder 5; the cover plate 7 is fixedly mounted on the bottom of the roller mounting area at the head of the tool holder 5; the pin 2 is simultaneously sleeved in the roller 3 and the mounting hole to rotate the roller 3 on the pin 2.
[0022] In one embodiment, such as Figures 1 to 4 As shown, a first screw 1 is provided inside the pin 2, and the first screw 1 is sleeved inside the pin 2 and fixedly connected to the cover plate 7.
[0023] In one embodiment, such as Figures 1 to 4 As shown, the cover plate 7 is fixedly connected to the bottom of the head roller mounting area of the tool bar 5 by the second screw 8.
[0024] In one embodiment, such as Figures 1 to 4 As shown, a gasket 4 is provided between the roller 3 and the top of the head roller mounting area of the cutter bar 5.
[0025] In one embodiment, such as Figures 1 to 4 As shown, the gasket 4 has a slot 9, and the slot 9 is fixedly connected to the tool bar 5 by a pin 6.
[0026] In one embodiment, such as Figures 1 to 4 As shown, the installation process of this utility model is as follows:
[0027] 1. The first screw 1 passes through the pin 2, roller 3, and washer 4;
[0028] 2. The above-mentioned parts are fixed on the tool holder 5;
[0029] 3. The gasket 4 is designed with a slot 9, and the pin 6 prevents the gasket 4 from rotating under force;
[0030] 4. The second screw 8 is fixed to the tool holder 5 through the cover plate 7;
[0031] 5. Conversely, if the above actions are performed in reverse, a locking position for the cover plate 7 is provided on the tool holder 5, enabling use in both directions. In one embodiment, such as... Figures 1 to 4 As shown, the technical problems solved by this utility model are: 1. Unstable production precision and poor appearance; 2. Poor tool life and high cost; 3. Reduced tool usage cost, with one tool holder serving two purposes; 4. The pin design restricts the position of the roller, preventing the roller from shifting due to rolling force and affecting the rolling precision.
[0032] This utility model uses roll forming, which eliminates iron filings, knurling collapse, and incomplete filling, saves materials, increases production efficiency, improves product quality, and enhances precision. It allows for two application conditions with a single tool holder.
[0033] Working principle: Its working principle is mainly based on the principle of plastic deformation. The specific process is as follows: by applying external force, the metal material undergoes plastic deformation to form the required shape and size. During the rolling process, it is necessary to select appropriate extrusion tools, extrusion conditions, and lubrication methods to ensure extrusion quality and efficiency.
[0034] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A side-fixed knurling cutter shank, characterized in that, The knurling cutter bar includes: a cutter bar, a roller, a pin, and a cover plate; The head of the tool holder is provided with a roller mounting area, and the roller mounting area is provided with a mounting hole; the roller is fixedly mounted on the top of the roller mounting area at the head of the tool holder; the cover plate is fixedly mounted on the bottom of the roller mounting area at the head of the tool holder; the pin is simultaneously sleeved in the roller and the mounting hole to rotate the roller on the pin.
2. The side-fixed knurling cutter bar according to claim 1, characterized in that, The pin is provided with a first screw, which is sleeved inside the pin and fixedly connected to the cover plate.
3. The side-fixed knurling cutter bar according to claim 1, characterized in that, The cover plate is fixedly connected to the bottom of the head roller mounting area of the tool bar by a second screw.
4. The side-fixed knurling cutter bar according to claim 1, characterized in that, A gasket is provided between the roller and the top of the head roller mounting area of the tool holder.
5. The side-fixed knurling cutter bar according to claim 4, characterized in that, The gasket has a slot, and the slot is fixedly connected to the tool holder by a pin.