A rotary bottoming device

Abstract

The utility model discloses a kind of rotary bottom knife devices, by two blade parts of diamond distribution are scientifically integrated with cutting tool, the efficient cooperation of punching operation and burr cleaning function is realized.It is not only convenient to quickly replace wearing parts to the detachable blade part mounting structure it uses, but also can flexibly adjust blade part configuration according to actual processing requirement;The symmetrical layout of diamond blade part combines the cutting edge designed at specific angle, so that the device can effectively trim hole edge burr while completing accurate punching, significantly reducing the cumbersome process of separately setting deburring process in traditional technology.The device optimizes the spatial relationship of blade part and rotating shaft, ensures the stability of cutting process, improves the smoothness of processing surface, and has compact overall structure and high functional integration, effectively improves processing efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of machining tool technology, and in particular to a bottom-rotating tool device. Background Technology

[0002] In machining, hardware manufacturing, and sheet metal processing, drilling is a very common process. From small mounting holes in electronic component housings to large assembly holes in large mechanical equipment parts, all require specialized processing equipment. During drilling, the high-speed cutting action between the tool and the workpiece material easily generates burrs on the inner wall of the hole and the edge of the hole. These burrs not only affect the appearance quality of the workpiece but also seriously impact subsequent assembly accuracy, operational safety, and the overall performance of the workpiece. For example, in the assembly of precision instrument components, even tiny burrs can cause abnormal clearances between parts, leading to equipment malfunctions or decreased accuracy. In pipelines involving fluid transport, burrs can cause fluid turbulence, increasing energy consumption and even posing a risk of blockage.

[0003] Currently, the industry typically employs two methods to handle burrs after drilling: one is to manually process the burrs using files, sandpaper, and specialized deburring tools after the drilling process. This method consumes a significant amount of manpower and has extremely low efficiency, making it difficult to meet the demands of modern mass production. Furthermore, the consistency of manual operation is poor, easily leading to incomplete or excessive burr removal, which can damage the dimensional accuracy of the workpiece. The other method involves using integrated processing equipment to attempt to perform deburring simultaneously with drilling. However, the deburring structures in existing such equipment are mostly complex in design, typically requiring multiple drive components to control the drilling tool and deburring components separately. This not only increases the manufacturing cost and maintenance difficulty of the equipment but also easily leads to unstable deburring results due to insufficient precision in the coordination of multiple components.

[0004] Furthermore, in existing tool structures used for simultaneous deburring, the cutting edge is mostly fixedly connected. When the cutting edge wears out and needs replacement, the entire tool assembly often needs to be disassembled, which is cumbersome and time-consuming. At the same time, the angle between the cutting edge and the tool axis is mostly fixed, making it impossible to flexibly adjust according to the characteristics of different workpiece materials (such as metal, plastic, and wood) and the processing requirements of different hole sizes. This limits its applicability, and when dealing with harder materials or processing special hole sizes, it is prone to incomplete deburring or excessive cutting edge wear, failing to meet diverse processing needs. Therefore, existing technology needs improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a bottom-spinning knife device to solve one or more problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bottom-spinning tool device, comprising a base body mounted on a tool holder of a processing equipment, wherein a cutting tool is mounted on the base body, and further comprising two rhomboid cutting edges, wherein the cutting tool is vertically mounted at the top center of the base body; two mounting grooves are symmetrically opened on the side wall of the base body, and one cutting edge is detachably mounted in each mounting groove by means of fasteners; the cutting edge has a cutting edge for removing burrs, and the cutting edge forms an angle of 20° to 60° with the axis of the cutting tool.

[0007] In one embodiment of the present invention, the base body is provided with a horizontal through mounting hole, one end of which is located on the side wall of the mounting groove; the blade is provided with a fixing hole corresponding to the mounting hole, and a fastener passes through the mounting hole and the fixing hole to fix the blade in the mounting groove.

[0008] In one embodiment of the present invention, the base body includes a cylindrical main body and a mounting boss located at the top of the main body, and the cutting tool is mounted on the mounting boss; the mounting hole is provided at the connection between the main body and the mounting boss.

[0009] In one embodiment of the present invention, the mounting groove has a clearance groove on the side wall away from the mounting side of the blade, and the clearance groove is used to provide operating space for loading and unloading the fastener.

[0010] In one embodiment of the present invention, the top end of the cutting edge is higher than the upper end surface of the base body, and the cutting edge extends obliquely in the axial direction of the cutting tool.

[0011] In one embodiment of the present invention, a blind hole is provided on the bottom wall of the mounting groove. The position of the blind hole corresponds to the connection point of two adjacent cutting edges on the cutting edge, and is used to position the cutting edge during installation.

[0012] As described above, the rotary blade device of this utility model has the following beneficial effects: by scientifically integrating two rhomboidly distributed cutting edges with the cutting tool, it achieves efficient synergy between drilling and deburring functions. Its detachable cutting edge mounting structure not only facilitates quick replacement of worn parts but also allows for flexible adjustment of the cutting edge configuration according to actual processing needs. The symmetrical layout of the rhomboid cutting edges, combined with the cutting edge designed at a specific angle, enables the device to simultaneously and effectively trim burrs on the hole edge while completing precise drilling, significantly reducing the cumbersome process of requiring a separate deburring step in traditional processes. By optimizing the spatial relationship between the cutting edge and the rotating shaft, this device ensures the stability of the cutting process and improves the surface finish of the machined surface. Its compact overall structure and high functional integration effectively improve processing efficiency and product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the bottom-spinning knife device provided by this utility model;

[0015] Figure 2 Another structural schematic diagram of the bottom-spinning knife device provided by this utility model;

[0016] Figure 3 This is a schematic diagram of the bottom-spinning knife device provided by this utility model from another perspective.

[0017] Component designation explanation

[0018] 1. Base body; 11. Main body; 12. Mounting boss; 2. Cutting tool; 3. Cutting edge; 4. Mounting groove; 5. Mounting hole; 6. Fixing hole; 7. Clearance groove; 8. Blind hole. Detailed Implementation

[0019] This utility model provides a bottom-spinning knife device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. In the description of this utility model, it should be understood that the terms "up, down, left, right," 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 should not be construed as limiting this utility model; in addition, the terms "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Please see Figures 1 to 3 This utility model provides a deburring device, including a base body 1 mounted on a tool holder of a processing equipment. A cutting tool 2 is mounted on the base body 1, and two rhomboid cutting edges 3 are also included. The cutting tool 2 is vertically mounted at the top center of the base body 1. Two mounting slots 4 are symmetrically formed on the side wall of the base body 1, and one cutting edge 3 is detachably mounted in each mounting slot 4 via fasteners. The cutting edge 3 has a cutting edge for deburring, and the cutting edge forms an angle of 20° to 60° with the axis of the cutting tool 2. The overall structural design solves the core pain point of burr removal in existing drilling processes. By vertically mounting the cutting tool 2 at the top center of the base body 1, and cooperating with the two symmetrically arranged rhomboid cutting edges 3 on the side wall, drilling and deburring are performed simultaneously, eliminating the need for additional manual secondary processing or multiple drive components, significantly improving processing efficiency, and avoiding fluctuations in deburring effect caused by insufficient precision of multiple components. The design of the diamond-shaped cutting edge 3 can better fit the contour of the hole wall, allowing the cutting edge to act precisely on the burr area, ensuring the consistency of burr removal and the workpiece machining accuracy. The cutting edge 3 can be detached and installed with fasteners, simplifying the replacement process after the cutting edge 3 wears out and reducing equipment downtime for maintenance. The specific angle design between the cutting edge and the axis of the cutting tool 2 breaks the application limitations of the traditional fixed-angle cutting edge 3, and the angle can be adjusted according to different workpiece materials and hole diameter requirements, thus broadening the application range of the device in multiple fields.

[0021] The base body 1 has a horizontally penetrating mounting hole 5, one end of which opens onto the side wall of the mounting groove 4. The cutting edge 3 has a fixing hole 6 corresponding to the mounting hole 5. Fasteners pass through the mounting hole 5 and the fixing hole 6 to fix the cutting edge 3 within the mounting groove 4. The mounting groove 4 has a clearance groove 7 on its side wall away from the mounting side of the cutting edge 3. The clearance groove 7 provides operating space for installing and removing the fasteners. Preferably, the fastener is a bolt, with its head embedded in the clearance groove 7 and its tail connected through the mounting hole 5 and the fixing hole 6. In actual operation, the installation or removal of the cutting edge 3 can be quickly completed by rotating the bolt, thereby improving maintenance efficiency. Furthermore, the design of the clearance groove 7 effectively prevents the bolt from shifting during tightening, ensuring the positioning accuracy between the cutting edge 3 and the base body 1. To further enhance structural stability, the inner walls of the mounting hole 5 and the fixing hole 6 are smoothed to reduce friction and extend service life.

[0022] The base body 1 includes a cylindrical main body 11 and a mounting boss 12 located at the top of the main body 11. The cutting tool 2 is mounted on the mounting boss 12. The mounting hole 5 is located at the connection between the main body 11 and the mounting boss 12. Optionally, the top of the mounting boss 12 is also provided with a ring of positioning marks to help users quickly find the correct position when installing the cutting tool 2, thereby improving the convenience and accuracy of operation. More specifically, the base body 1 also includes a tool holder. The cylindrical main body 11 is fixedly mounted on the top surface of the tool holder. The tool holder is made of high-strength material to ensure that it can withstand large torque and pressure during use. To meet the needs of different users, the length and diameter of the tool holder can be adjusted according to the actual application scenario to adapt to different working environments and operating habits.

[0023] The tip of the cutting edge 3 is higher than the upper surface of the base body 1, and the cutting edge 3 extends obliquely towards the axis of the cutting tool 2. Specifically, the tip of the cutting edge 3 is oblique towards the cutting tool 2, which can effectively grind the edge of the drilled hole, making the hole wall smoother and flatter after machining, thereby improving the overall machining quality. The oblique angle of the cutting edge 3 is precisely designed to ensure the grinding effect while avoiding material waste or tool wear caused by excessive contact. In addition, the design of the tip of the cutting edge 3 being higher than the upper surface of the base body 1 ensures that the cutting edge 3 is fully exposed in the working area during grinding, reducing the interference of the base body 1 on the operation. This structure also facilitates the observation of the working status of the cutting edge 3, making it convenient to adjust or replace the tool in a timely manner, further optimizing the user experience. At the same time, the fit between the cutting edge 3 and the cutting tool 2 is strictly calibrated to ensure stability during high-speed rotation, avoiding vibration or displacement from affecting machining accuracy.

[0024] A blind hole 8 is formed on the bottom wall of the mounting groove 4. The position of the blind hole 8 corresponds to the connection point of two adjacent cutting edges on the cutting edge 3, and is used to position the cutting edge 3 during installation. The blind hole 8 not only improves the positioning accuracy of the cutting edge 3 during installation, but also effectively prevents displacement of the cutting edge 3 during high-speed rotation. Through precise correspondence with the connection point of the cutting edges on the cutting edge 3, the blind hole 8 further enhances the stability of the overall structure, ensuring reliability and consistency during the machining process. In addition, this design simplifies the installation steps, reduces the time cost of manual adjustment, and reduces the risk of tool damage due to installation errors. The depth and diameter of the blind hole 8 are precisely calculated to meet the positioning requirements without affecting the strength of the base body 1, thus ensuring the durability of the device in long-term use.

[0025] In summary, the rotary blade device of this invention effectively solves the problems of low efficiency, unstable effect, and limited applicability in existing drilling processes, demonstrating significant practical value and technical advantages. From the perspective of deburring effect, the device, by symmetrically arranging two rhomboid cutting edges 3 on the base body 1, in conjunction with the operation of the cutting tool 2, can simultaneously cut the inner wall and edges of the hole during the drilling process. The rhomboid structure of the cutting edges 3 can better conform to the hole wall contour, allowing the cutting edge to precisely act on the burr-generating area, avoiding the problems of incomplete cleaning or excessive damage to the workpiece during traditional manual secondary processing. Furthermore, it eliminates the need for multiple sets of drive components to work together, reducing fluctuations in deburring effect caused by insufficient component matching precision, significantly improving the consistency and reliability of burr cleaning, ensuring the appearance quality of the workpiece and subsequent assembly accuracy, and reducing the risk of equipment malfunctions or fluid transport abnormalities caused by burrs.

[0026] In terms of ease of operation and maintenance, the cutting edge 3 is detachably installed in the mounting slot 4 of the base body 1 by fasteners. When the cutting edge 3 wears out due to long-term use, it is not necessary to disassemble the entire tool assembly. The cutting edge 3 can be replaced simply by loosening the fasteners. This simplifies the maintenance operation process, shortens the equipment downtime for maintenance, reduces maintenance costs, and is more suitable for the continuous operation requirements of modern mass production.

[0027] From the perspective of expanding its application scope, the specific angle design between the cutting edge and the axis of the cutting tool 2 allows the device to optimize the cutting effect by adjusting the angle according to the hardness and toughness of different workpiece materials and the processing requirements of different hole diameters. This avoids the problems of incomplete burr removal or excessive wear of the cutting edge 3 that are prone to occur when facing diverse processing needs with traditional fixed-angle cutting edges 3. It effectively improves the adaptability of the device to workpieces of different materials such as metal, plastic, and wood, as well as processing scenarios with different hole diameters, and broadens its application scope in multiple fields such as machining, hardware manufacturing, and sheet metal processing, providing a more flexible and efficient solution for diversified processing needs. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial utilization value.

[0028] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A bottom-spinning tool device, comprising a base body (1) mounted on a tool holder of a machining equipment, wherein a cutting tool (2) is mounted on the base body (1), characterized in that, It also includes two rhomboid cutting edges (3), the cutting tool (2) is vertically mounted at the top center of the base body (1); two mounting slots (4) are symmetrically opened on the side wall of the base body (1), and one cutting edge (3) is detachably mounted in each mounting slot (4) by means of fasteners; the cutting edge (3) has a cutting edge for removing burrs, and the cutting edge forms an angle of 20° to 60° with the axis of the cutting tool (2).

2. The bottom-spinning knife device according to claim 1, characterized in that, The base body (1) is provided with a horizontal through mounting hole (5), one end of which is located on the side wall of the mounting groove (4); the blade (3) is provided with a fixing hole (6) corresponding to the mounting hole (5), and the fastener passes through the mounting hole (5) and the fixing hole (6) to fix the blade (3) in the mounting groove (4).

3. The bottom-spinning knife device according to claim 2, characterized in that, The base body (1) includes a cylindrical main body (11) and a mounting boss (12) located at the top of the main body (11). The cutting tool (2) is mounted on the mounting boss (12). The mounting hole (5) is provided at the connection between the main body (11) and the mounting boss (12).

4. The bottom-spinning knife device according to claim 2, characterized in that, The mounting groove (4) has a clearance groove (7) on the side wall away from the mounting side of the blade (3). The clearance groove (7) is used to provide operating space for loading and unloading the fastener.

5. The bottom-spinning knife device according to claim 1, characterized in that, The top of the cutting edge (3) is higher than the upper surface of the base body (1), and the cutting edge (3) extends obliquely in the axial direction of the cutting tool (2).

6. The bottom-spinning knife device according to claim 1, characterized in that, A blind hole (8) is provided on the bottom wall of the mounting groove (4). The position of the blind hole (8) corresponds to the connection point of two adjacent cutting edges on the cutting edge (3), and is used to position the cutting edge (3) during installation.

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