Cutting head of a rotatable tool
By introducing a slide rail, spring buffer, and rubber column buffer structure into the cutting head, combined with a cooling and cleaning mechanism, the impact problem of the cutting head during milling is solved, achieving high-precision and high-efficiency machining results and extending tool life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN RUIDIXIN PRECISION MACHINERY CO LTD
- Filing Date
- 2025-06-29
- Publication Date
- 2026-06-26
AI Technical Summary
Existing rotatable cutting tools lack effective buffering mechanisms when the cutting head is pressed down or when milling on inclined planes, resulting in severe tool wear, frequent chipping, and unstable machining processes, making it difficult to meet the high-precision requirements under complex working conditions.
It adopts a sleeve-inner slide rail and slide bar slider structure, spring buffer, rubber column buffer and cooling cleaning mechanism. The slide rail and slider form a stable sliding system, the spring absorbs the impact energy, the rubber column disperses the impact force, and the cooling cleaning mechanism removes waste and injects coolant to cool down through a mini blower.
It effectively mitigates the impact force of the cutting head, improves the stability and reliability of the machining system, enhances machining accuracy and efficiency, extends tool life, and ensures high-quality machining results.
Smart Images

Figure CN224406461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting head technology, and in particular to the cutting head of a rotatable tool. Background Technology
[0002] Rotary cutting tools are widely used in machining. They achieve cutting by rotation and consist of a tool holder and a cutting head. The cutting head has cutting teeth. Driven by the machine tool, the rotary cutting tool rotates at high speed, contacts the workpiece, and performs cutting. It can process various materials. Common rotary cutting tools include milling cutters, drills, and reamers. Milling cutters are used for milling planes and grooves, drills are used for drilling holes, and reamers are used for finishing holes to improve their accuracy and surface quality. Rotary cutting tools have the advantages of high processing efficiency and high precision, making them an indispensable tool in modern manufacturing.
[0003] Advances in materials science have enabled the use of high-performance materials in cutting heads, improving the wear resistance and durability of cutting tools, reducing tool replacement frequency, and lowering processing costs. Secondly, advancements in manufacturing processes have resulted in higher precision cutting heads, enabling the machining of more complex shapes, improving processing quality and product consistency. Furthermore, the combination of automated control technology and rotatable cutting heads makes the machining process more precise and efficient. Parameters can be precisely adjusted according to different processing needs, and the cutting heads can be integrated into automated production lines to improve production efficiency and adapt to the high-precision and high-efficiency development trend of modern manufacturing.
[0004] When the cutting head of an existing rotatable tool is pressed down or milling on an inclined plane, the tool is easily subjected to large impacts due to the lack of an effective buffer mechanism. In this case, the cutting head will be subjected to excessive instantaneous force, which will aggravate wear and even cause chipping, significantly shortening the tool life. At the same time, the presence of impact force will cause instability in the cutting process, affecting machining accuracy and surface quality, generating vibration ripples and dimensional deviations, reducing the stability and reliability of the machining system, and making it difficult to meet the high-precision machining requirements under complex working conditions. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a rotatable cutting head, which aims to improve the problem that in the prior art, the cutting head lacks an effective buffer mechanism when pressing down or performing milling operations on inclined planes, which aggravates wear and even causes chipping. The presence of impact force leads to instability in the cutting process, reduces the stability and reliability of the machining system, and makes it difficult to meet the high-precision machining requirements under complex working conditions.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cutting head for a rotatable tool, comprising a sleeve, wherein multiple slide rails are provided on the inner side of the sleeve, a slide rod is slidably connected to the left side of the sleeve, multiple sliders are fixedly connected to the outer periphery of the slide rod, the outer sides of the multiple sliders are slidably connected to the interior of the multiple slide rails, a groove is provided on the left side of the slide rod, a locking block one is fixedly connected to the middle of the inner side of the sleeve, a locking block two is fixedly connected to the right end of the inner side of the sleeve, a spring is fixedly connected between adjacent locking blocks one and two, multiple rubber pillars are fixedly connected to the right side of the sleeve, the right ends of the multiple rubber pillars are fixedly connected to the same rubber pad, and a cooling and cleaning mechanism is fixedly connected to the left side of the interior of the groove.
[0007] As a further description of the above technical solution:
[0008] The cooling cleaning mechanism includes a locking tube, the right end of which is fixedly connected to the left side of the inside of the groove. A milling head is fixedly connected to the left side of the locking tube. Multiple miniature blowers are fixedly connected to the outer periphery of the milling head. A hole is opened at the left end of the milling head, and a condenser tube is slidably connected inside the hole. A plug is provided at the left end of the condenser tube.
[0009] As a further description of the above technical solution:
[0010] The outer top left end of the sleeve is threaded with a buckle, and both the left and right ends of the buckle are threaded with threaded rods.
[0011] As a further description of the above technical solution:
[0012] Power blocks are fixedly connected to all four sides of the left end of the sleeve, and LED lights are fixedly connected to the outside of each of the power blocks.
[0013] As a further description of the above technical solution:
[0014] The left side of the plug is threaded with a handle, and both the front and rear ends of the handle are threaded with screws.
[0015] As a further description of the above technical solution:
[0016] The milling head has tooth cavities around its outer perimeter, and the surfaces of multiple tooth cavities are designed with tooth grooves.
[0017] As a further description of the above technical solution:
[0018] The right side of each milling head is provided with a slot, and a desiccant is fixedly connected inside the slot.
[0019] As a further description of the above technical solution:
[0020] Extension blocks are fixedly connected to the outer perimeter of the rubber pad, and a locking block is fixedly connected to the top right side of each of the extension blocks.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, when the cutting head is pressing down or milling on an inclined plane, the spring compression deformation between the first and second locking blocks absorbs energy and reduces the impact on the cutting head. The slide rail and slider structure between the slide rod and the sleeve ensures the sliding stability of the slide rod and avoids the cutting head from being deflected by force. At the same time, the rubber column and rubber pad further disperse the impact force and prevent the cutting head from being damaged by the impact. This ensures that the mechanism can achieve effective buffering, improves the stability and reliability of the machining system, and meets the high-precision machining requirements under complex working conditions.
[0023] 2. In this utility model, during the milling process, coolant can be injected into the condenser tube, which can quickly reduce the temperature of the milling head and workpiece by cooperating with the inner hole of the milling head, avoiding the problem of accelerated tool wear and workpiece deformation caused by high temperature. Multiple micro blowers are distributed around the milling head, which can generate airflow during operation to blow away the waste chips generated by cutting in time and away from the processing area, preventing the accumulation of waste chips from affecting the milling quality, ensuring that the milling work is efficient and smooth, and significantly improving the processing efficiency and surface quality. Attached Figure Description
[0024] Figure 1 This is a perspective view of the cutting head of the rotatable tool proposed in this utility model;
[0025] Figure 2 This is a front view of the cutting head of the rotatable tool proposed in this utility model;
[0026] Figure 3 This is an exploded view of the slide bar of the cutting head of the rotatable tool proposed in this utility model;
[0027] Figure 4 This is an exploded view of the sleeve of the cutting head of the rotatable tool proposed in this utility model;
[0028] Figure 5 This is an exploded view of the cooling and cleaning mechanism for the cutting head of the rotatable tool proposed in this utility model.
[0029] Legend:
[0030] 1. Sleeve; 2. Cooling and cleaning mechanism; 201. Clamping tube; 202. Milling head; 203. Mini blower; 204. Hole; 205. Condenser tube; 206. Plug; 3. Slide rail; 4. Slide rod; 5. Slider; 6. Groove; 7. Clamping block one; 8. Spring; 9. Clamping block two; 10. Rubber column; 11. Rubber pad; 12. Buckle; 13. Threaded rod; 14. Power block; 15. LED light; 16. Handle; 17. Screw; 18. Tooth cavity; 19. Groove; 20. Desiccant; 21. Extension block; 22. Clamping block. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a rotatable cutting head, including a sleeve 1. Multiple slide rails 3 are provided on the inner side of the sleeve 1. A slide rod 4 is slidably connected to the left side of the sleeve 1. Multiple sliders 5 are fixedly connected to the outer periphery of the slide rod 4. The outer sides of the multiple sliders 5 are all slidably connected to the interior of the multiple slide rails 3. A groove 6 is provided on the left side of the slide rod 4. A locking block 1 7 is fixedly connected to the middle of the inner side of the sleeve 1. A locking block 2 9 is fixedly connected to the right end of the inner side of the sleeve 1. A spring 8 is fixedly connected between adjacent locking blocks 1 7 and locking blocks 2 9. The impact force generated during milling is transmitted to the spring 8 through the multiple sliders 5 outside the slide rod 4. The spring 8 reduces the impact force through elastic potential energy. Multiple rubber pillars 10 are fixedly connected to the right side of the sleeve 1 for further buffering the impact force. The right ends of the multiple rubber pillars 10 are all fixedly connected to the same rubber pad 11. A cooling and cleaning mechanism 2 is fixedly connected to the left side of the interior of the groove 6.
[0033] Specifically, multiple slide rails 3 on the inner side of the sleeve 1 and multiple sliders 5 fixed around the outer perimeter of the slide rod 4 cooperate to form a stable sliding connection system. This not only ensures that the slide rod 4 slides smoothly along the axial direction of the sleeve 1, but also provides a path for the transmission of impact force. When the cutting head encounters impact force during downward pressing or inclined milling, the slide rod 4 transmits the force to the inside of the sleeve 1 through the sliders 5. At this time, the spring 8 between the locking block 7 located in the middle of the inner side of the sleeve 1 and the locking block 9 at the right end of the inner side plays a buffering role. During the compression process, the spring 8 converts mechanical energy into elastic potential energy. It effectively absorbs and weakens the impact force, reducing the impact on the tool body. At the same time, the multiple rubber pillars 10 fixed on the right side of the sleeve 1 and the rubber pad 11 connected to the right end form a flexible buffer layer. The rubber material itself has good elasticity and toughness, which can further disperse and absorb the residual impact force and reduce vibration. The multiple buffer structures work together to not only reduce tool wear and extend service life, but also ensure the stability of the processing process and improve the machining accuracy and surface quality of the workpiece. The cooling and cleaning mechanism 2 is fixedly connected to the left side of the inside of the groove 6, which is used to cool the cutting head and clean up the waste chips.
[0034] Reference Figure 1 , Figure 3 and Figure 5 The cooling and cleaning mechanism 2 includes a retaining tube 201. The right end of the retaining tube 201 is fixedly connected to the left side of the inside of the groove 6. A milling head 202 is fixedly connected to the left side of the retaining tube 201. Multiple miniature blowers 203 are fixedly connected to the outer periphery of the milling head 202, which can generate air force to clean the milled waste chips out of the equipment. A hole 204 is opened at the left end of the milling head 202. A condenser tube 205 is slidably connected inside the hole 204 for adding coolant for cooling. A plug 206 is provided at the left end of the condenser tube 205.
[0035] Specifically, the cooling and cleaning mechanism 2 combines efficient cooling and cleaning functions. The locking tube 201 securely connects the milling head 202 to the groove 6 of the slide bar 4, ensuring structural stability. Multiple micro blowers 203 evenly distributed on the outside of the milling head 202 can generate airflow in a direction during operation, which can quickly blow away the waste generated during milling from the processing area, avoiding the accumulation of waste that affects milling accuracy and preventing waste from entangled in the tool and causing equipment failure, thus greatly improving processing efficiency and safety. The hole 204 opened at the left end of the milling head 202 and the slidably connected condenser tube 205 form an efficient cooling system. By opening the plug 206, coolant is injected into the condenser tube 205, which circulates inside the milling head 202, carrying away a large amount of heat generated by cutting in time, effectively reducing the temperature of the milling head 202 and the workpiece, reducing tool thermal wear, ensuring processing accuracy, extending tool life, and providing a strong guarantee for high-quality milling processing.
[0036] Reference Figure 1 , Figure 2 andFigure 3 The top left end of the outer side of the sleeve 1 is threaded with a buckle 12, and the left and right ends of the buckle 12 are threaded with threaded rods 13. The clipping head can be easily hung up and placed through the buckle 12. Power blocks 14 are fixedly connected to the left side of the sleeve 1. LED lights 15 are fixedly connected to the outside of multiple power blocks 14 for providing lighting in dim environments. The left side of the plug 206 is threaded with a handle 16, and screws 17 are threaded to the front and rear ends of the handle 16.
[0037] Specifically, the buckle 12 on the top left end of the outer side of the sleeve 1 is threaded together with the threaded rod 13, which facilitates hanging the cutting head on the workbench hook or equipment bracket, achieving orderly storage and avoiding tool damage and inconvenience caused by random placement. The power block 14 and LED light 15 provide reliable lighting for machining operations in dim environments. Multiple power blocks 14 are evenly distributed on the left end of the sleeve 1 to ensure that the LED light 15 can illuminate the machining area from different angles, allowing operators to clearly observe the cutting process and improving machining accuracy and safety. The handle 16 on the left side of the plug 206, together with the screw 17, can secure the position of the handle 16 and prevent the handle 16 from loosening or falling off due to vibration during the cutting process, ensuring the normal operation of the cooling system. The overall design fully considers the needs of actual use scenarios, improving the functionality of the cutting head and the user experience.
[0038] Reference Figure 1 , Figure 2 and Figure 3 The milling head 202 has toothed cavities 18 around its outer perimeter. The surfaces of the multiple toothed cavities 18 are all designed with tooth grooves to increase the milling area. The right side of the milling head 202 has slots 19. A desiccant 20 is fixedly connected inside the slots 19 for dehumidification. Extension blocks 21 are fixedly connected around the outer perimeter of the rubber pad 11. A locking block 22 is fixedly connected to the top right side of the multiple extension blocks 21.
[0039] Specifically, the toothed cavities 18 around the outer periphery of the milling head 202 adopt a toothed groove design, which greatly increases the contact area with the workpiece. During the milling process, it can act on a larger area of material simultaneously, effectively improving milling efficiency and cutting volume, and meeting the processing requirements of complex workpieces. The desiccant 20 fixed in the slot 19 can absorb moisture in the environment around the cutting head, preventing the tool from rusting due to moisture, extending the tool life, and ensuring that the processing accuracy is not affected by moisture. The extension block 21 and the locking block 22 on the outside of the rubber pad 11 further optimize the buffer structure. The extension block 21 increases the effective range of the rubber pad 11, so that the buffering effect covers a wider area. The locking block 22 can be engaged with designated components, which facilitates connection with external protective devices or fixed structures, enhances the stability of the cutting head under complex working conditions, and provides more reliable buffering and protection for milling operations.
[0040] Working Principle: During milling operations, when the cutting head is pressing down or milling on an inclined plane, it encounters impact forces of various directions and magnitudes. The slide rail 3 inside the sleeve 1 and the slider 5 outside the slide rod 4 cooperate to form a stable sliding system. On the one hand, this ensures that the slide rod 4 can slide smoothly along the axial direction of the sleeve 1, preventing the slide rod 4 from shaking or deviating during movement and ensuring the movement accuracy of the cutting head. On the other hand, it provides a clear path for the transmission of impact forces. When an impact force is generated, the slide rod 4 transmits the force to the inside of the sleeve 1 through the slider 5. The spring 8 located inside the sleeve 1 plays a buffering role. Spring 8 is connected between locking block 1 7 and locking block 2 9. When subjected to impact force, it will be compressed. Spring 8 converts mechanical energy into elastic potential energy, thereby effectively absorbing and weakening the impact force and reducing the direct impact on the tool body. Multiple rubber pillars 10 on the right side of sleeve 1 and rubber pads 11 connected to the right end constitute a flexible buffer layer. Rubber has good elasticity and toughness, which can further disperse and absorb residual impact force and reduce vibration. It can not only reduce tool wear and extend tool service life, but also ensure the stability of the machining process, and significantly improve the machining accuracy and surface quality of the workpiece.
[0041] Furthermore, during milling operations, multiple micro blowers 203 evenly distributed on the outside of the milling head 202 generate airflow in a directional manner, quickly blowing the milling chips away from the machining area. This not only avoids chip accumulation interfering with milling accuracy but also prevents chips from entangled in the tool and causing equipment failure, significantly improving machining efficiency and safety. In addition, by opening the plug cap 206 and injecting coolant into the condenser pipe 205, the coolant circulates inside the milling head 202, carrying away a large amount of heat generated by cutting. This effectively reduces the temperature of the milling head 202 and the workpiece, reduces tool thermal wear, ensures machining accuracy, and extends tool life. The cooling and cleaning functions work together to provide a strong guarantee for high-quality milling.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cutting head for a rotatable tool, comprising a sleeve (1), characterized in that: The inner side of the sleeve (1) is provided with multiple slide rails (3), the left side of the sleeve (1) is slidably connected with a slide rod (4), the outer periphery of the slide rod (4) is fixedly connected with multiple sliders (5), the outer sides of the multiple sliders (5) are all slidably connected to the inside of the multiple slide rails (3), the left side of the slide rod (4) is provided with a groove (6), the middle of the inner side of the sleeve (1) is fixedly connected with a locking block one (7), the right end of the inner side of the sleeve (1) is fixedly connected with a locking block two (9), the adjacent locking blocks one (7) and locking blocks two (9) are fixedly connected with a spring (8), the right side of the sleeve (1) is fixedly connected with multiple rubber pillars (10), the right end of the multiple rubber pillars (10) is fixedly connected with the same rubber pad (11), the left side of the inside of the groove (6) is fixedly connected with a cooling cleaning mechanism (2).
2. The cutting head of the rotatable tool according to claim 1, characterized in that: The cooling cleaning mechanism (2) includes a retaining tube (201), the right end of which is fixedly connected to the inside left side of the groove (6), and a milling head (202) is fixedly connected to the left side of the retaining tube (201). Multiple miniature blowers (203) are fixedly connected to the outside of the milling head (202). A hole (204) is opened at the left end of the milling head (202), and a condenser tube (205) is slidably connected inside the hole (204). A plug (206) is provided at the left end of the condenser tube (205).
3. The cutting head of the rotatable tool according to claim 1, characterized in that: The top left end of the outer side of the sleeve (1) is threaded with a buckle (12), and both the left and right ends of the buckle (12) are threaded with threaded rods (13).
4. The cutting head of the rotatable tool according to claim 1, characterized in that: Power blocks (14) are fixedly connected to the left end of the sleeve (1) around its perimeter, and LED lights (15) are fixedly connected to the outside of each of the power blocks (14).
5. The cutting head of the rotatable tool according to claim 2, characterized in that: The left side of the plug (206) is threaded with a handle (16), and the front and rear ends of the handle (16) are threaded with screws (17).
6. The cutting head of the rotatable tool according to claim 2, characterized in that: The milling head (202) has tooth cavities (18) around its outer perimeter, and the surfaces of the multiple tooth cavities (18) are all designed with tooth grooves.
7. The cutting head of the rotatable tool according to claim 2, characterized in that: The milling head (202) has a slot (19) on its right side, and a desiccant (20) is fixedly connected inside the slot (19).
8. The cutting head of the rotatable tool according to claim 1, characterized in that: The rubber pad (11) is fixedly connected to extension blocks (21) on all four sides of its outer perimeter, and the top right side of each of the extension blocks (21) is fixedly connected to a locking block (22).