A replaceable head cutting tool

Abstract

This utility model belongs to the field of machining technology and discloses a replaceable head cutting tool, including a replaceable head cutting tool body. The replaceable head cutting tool body includes a shank body, a cutting head body, a connecting component, a replacement component, and a cutting insert. Through the tight fit between the tapered surface of the shank and the tapered surface of the cutting head, and the interaction between the protruding stop of the cutting head and the recessed stop of the shank, combined with the connection of the internal hexagon screw, a stable connection structure is formed between the cutting head body and the shank body. This effectively improves the stability of the tool during machining, reduces vibration, and ensures machining accuracy. In addition, with the O-ring seal, it can effectively prevent cutting fluid, chips, etc. from entering the connection part between the shank body and the cutting head body, protecting the connection structure from damage and extending the service life of the tool. The replacement component greatly shortens the tool replacement time, making replacement convenient and efficient, improving machining efficiency, and reducing downtime and costs caused by tool replacement.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically a replaceable head cutting tool. Background Technology

[0002] In the field of machining, the machining of internal grooves is a common operation. Traditional cutting tools may have some limitations when machining internal grooves.

[0003] For example, if the cutting edge of a solid tool is damaged or the tool geometry needs to be adjusted according to different internal groove shapes, the entire tool must be replaced or scrapped once the tool head is damaged or a different shape of tool head is required due to changes in the machining task. This leads to a significant increase in tool usage costs and higher costs. Furthermore, due to the long overhang of internal tools, tool vibration is prone to occur, affecting machining accuracy, workpiece surface quality, and tool life.

[0004] Therefore, a replaceable head cutting tool is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a replaceable head cutting tool. Through a unique structural design, it achieves a stable connection between the tool head body and the shank body, while facilitating the replacement of cutting inserts, improving tool efficiency and service life, reducing processing costs, and providing good vibration resistance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a replaceable head cutting tool, comprising a replaceable head cutting tool body, the replaceable head cutting tool body including a shank body, a cutting head body, a connecting component, a replacement component, and a cutting blade, the shank body being disposed on one side of the replaceable head cutting tool body, a cutting head body being disposed at one end of the shank body, the cutting head body and the shank body being connected by a connecting component disposed in the middle, a cutting blade being disposed at the end of the cutting head body away from the shank body, and the cutting blade and the cutting head body being connected by a replacement component disposed between the two.

[0007] Preferably, the connecting assembly includes a shank tapered surface, a cutter head tapered surface, a cutter head protruding stop, a shank recessed stop, an internal hexagon screw, and a threaded insertion hole. The shank body and the cutter head body are connected at the shank tapered surface, and the cutter head body is provided with a cutter head tapered surface at the end near the shank body. The cutter head tapered surface and the shank tapered surface fit tightly together. The shank body and the cutter head body are connected using a tapered surface combination positioning method. The shank recessed stop is provided at the connection end between the shank body and the cutter head body, and the cutter head protruding stop is integrally formed at the end of the cutter head body near the shank body.

[0008] Preferably, the protruding stop of the cutter head is in contact with the recessed stop of the handle, and the two cooperate with each other. An internal hexagon screw is screwed into the handle body, one end of which penetrates the handle body and extends to the outer side of one end of the handle body.

[0009] Preferably, the center of the connecting end of the cutter head body is provided with a threaded hole adapted to the hexagon socket screw, one end of the hexagon socket screw is screwed into the cutter head body through the threaded hole, and the handle body and the cutter head body are connected by the hexagon socket screw.

[0010] Preferably, an O-ring is provided at the mating position between the handle body and the cutter head body, and the O-ring is fitted onto the outer surface of the internal hexagon screw.

[0011] Preferably, the cutter head body is made of steel and undergoes a special heat treatment process to give it good toughness and machinability.

[0012] Preferably, the handle body is made of high-performance steel or hard alloy.

[0013] Preferably, the replacement component includes a blade groove and a locking screw. One end surface of the cutter head body has a blade groove for installing a cutting blade, and a locking screw for fixing the cutting blade is screwed onto the surface of the cutter head body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This patented technology, through the tight fit between the tapered surfaces of the shank and the cutting head, and the interaction between the protruding stop of the cutting head and the recessed stop of the shank, combined with the connection of the internal hexagonal screws, forms a stable connection structure between the cutting head body and the shank body. This effectively improves the stability of the cutting tool during machining, reduces vibration, and ensures machining accuracy. Furthermore, the O-ring seal effectively prevents cutting fluid, debris, and other contaminants from entering the connection between the shank body and the cutting head body, protecting the connection structure from damage and extending the tool's lifespan. The design with a replacement component makes cutting insert replacement simple and quick, significantly shortening tool change time. This convenient and efficient replacement improves machining efficiency and reduces downtime and costs caused by tool changes. The cutting head body and shank body are made of suitable materials and undergo special processing, ensuring the overall strength, rigidity, and durability of the cutting tool, enabling it to adapt to various complex machining conditions and meet different machining needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cutting process using the cutting tool in this utility model;

[0019] Figure 4 This is a schematic diagram of the cutting tool in this utility model.

[0020] In the diagram: 1. Handle body; 2. Cutter head body; 3. Connecting assembly; 31. Handle tapered surface; 32. Cutter head tapered surface; 33. Cutter head protruding stop; 34. Handle recessed stop; 35. Socket head screw; 36. Threaded socket; 37. O-ring seal; 4. Replacement assembly; 41. Blade groove; 42. Locking screw; 5. Cutting blade. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] like Figures 1 to 4 As shown, this utility model provides a replaceable head cutting tool, including a replaceable head cutting tool body, which includes a shank body 1, a cutting head body 2, a connecting component 3, a replacement component 4, and a cutting blade 5. The shank body 1 is located on one side of the replaceable head cutting tool body, and the cutting head body 2 is located at one end of the shank body 1. The cutting head body 2 and the shank body 1 are connected by the connecting component 3 in the middle. The cutting blade 5 is located at the end of the cutting head body 2 away from the shank body 1. The cutting blade 5 and the cutting head body 2 are connected by the replacement component 4 located between them. By setting the connecting component 3, a stable connection structure is formed between the cutting head body 2 and the shank body 1, which effectively improves the stability of the tool during the machining process, reduces vibration, ensures machining accuracy, and, together with the replacement component 4, makes the replacement operation of the cutting blade 5 simple and quick, greatly shortening the tool replacement time. The replacement is convenient and efficient, improving machining efficiency and reducing downtime and costs caused by tool replacement.

[0023] like Figures 1 to 4As shown, the connecting component 3 includes a shank tapered surface 31, a cutter head tapered surface 32, a cutter head protruding stop 33, a shank recessed stop 34, an internal hexagon screw 35, and a threaded insertion hole 36. The shank tapered surface 31 is provided at the connection end between the shank body 1 and the cutter head body 2. The cutter head tapered surface 32 is provided at the end of the cutter head body 2 near the shank body 1. The cutter head tapered surface 32 and the shank tapered surface 31 fit tightly together. The shank body 1 and the cutter head body 2 are connected using a tapered surface combination positioning method. A shank recessed stop 34 is provided at the connection end between the shank body 1 and the cutter head body 2. The cutter head body 2 at the end near the shank body 1... The cutter body 1 has a protruding stop 33 on the cutter head, which is in contact with and connected to the recessed stop 34 on the handle. The two work together. A hexagon socket screw 35 is screwed into the handle body 1. One end of the hexagon socket screw 35 passes through the handle body 1 and extends to the outside of one end of the handle body 1. A threaded insertion hole 36 that matches the hexagon socket screw 35 is opened at the center of the connecting end of the cutter head body 2. One end of the hexagon socket screw 35 is screwed into the cutter head body 2 through the threaded insertion hole 36. The handle body 1 and the cutter head body 2 are connected by the hexagon socket screw 35. The tapered surface 32 of the cutter head fits tightly with the tapered surface 31 of the handle.

[0024] The use of a combination of conical surfaces for positioning can effectively improve the coaxiality and stability of the connection and reduce vibration during processing. At the same time, the protruding stop 33 of the cutter head and the recessed stop 34 of the shank are in contact and connected. The two work together to further enhance the stability of the connection and prevent relative rotation between the cutter head body 2 and the shank body 1. In addition, the shank body 1 and the cutter head body 2 are firmly connected by an internal hex screw 35, which is convenient for disassembly and installation.

[0025] It should be noted that the cutter head body 2 is made of steel and undergoes a special heat treatment process, which gives it good toughness and machinability. This good toughness ensures that the cutter head body 2 is not prone to breakage when subjected to large cutting forces.

[0026] It should be noted that the handle body 1 is made of high-performance steel or hard alloy material. These materials have high strength, high wear resistance and good impact resistance, which can ensure that the handle body 1 remains stable during use and can also effectively extend the service life of the handle body 1.

[0027] like Figures 1 to 4 As shown, an O-ring 37 is provided at the mating position between the handle body 1 and the cutter head body 2, and the O-ring 37 is fitted onto the outer surface of the internal hexagon screw 35.

[0028] By setting an O-ring 37, the sealing performance is improved, preventing cutting fluid, chips, and other contaminants from entering the connection area during machining, which could affect tool performance and service life.

[0029] like Figures 1 to 4 As shown, the replacement component 4 includes a blade groove 41 and a locking screw 42. One end surface of the cutter head body 2 has a blade groove 41 for installing the cutting blade 5. The surface of the cutter head body 2 is screwed with a locking screw 42 for fixing the cutting blade 5. With this structural design, when the cutting blade 5 is worn or damaged, the old cutting blade 5 can be quickly removed from the blade groove 41 by simply unscrewing the locking screw 42. Then, a new cutting blade 5 can be installed and the locking screw 42 can be tightened to fix it. The operation is simple and convenient, which greatly shortens the tool replacement time, makes replacement convenient and efficient, improves processing efficiency, and reduces downtime and cost caused by tool replacement.

[0030] Working principle and process: First, align the tapered surface 32 of the cutter head body 2 with the tapered surface 31 of the shank body 1, ensuring accurate engagement of the protruding stop 33 of the cutter head with the recessed stop 34 of the shank. Then, use an Allen wrench to tighten the Allen screw 35, firmly installing the cutter head body 2 onto the shank body 1. Next, place the cutting insert 5 into the insert groove 41 of the cutter head body 2, ensuring accurate installation of the cutting insert 5. Finally, use a screwdriver to tighten the locking screw 42, fixing the cutting insert 5 to the cutter head body 2. The specific machining process will then be determined based on the desired result. To meet the requirements, install the installed tool on the corresponding processing equipment to perform cutting operations. During use, the cutting parameters, such as cutting speed and feed rate, should be selected reasonably according to the properties of the processed material and processing requirements to ensure processing quality and tool life. When the tool head body 2 or the cutting insert 5 is severely worn or cannot meet the processing requirements, the installation can be carried out in the reverse order: first loosen the locking screw 42, remove the cutting insert 5, then loosen the internal hex screw 35, remove the tool head body 2, and then install a new tool head body 2 or cutting insert 5.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A replaceable-head cutting tool, comprising a replaceable-head cutting tool body, characterized in that: The replaceable head cutter body includes a shank body, a cutter head body, a connecting assembly, a replacement assembly, and a cutting blade. The shank body is located on one side of the replaceable head cutter body. The cutter head body is located at one end of the shank body. The cutter head body and the shank body are connected by a connecting assembly located in the middle. The end of the cutter head body away from the shank body is provided with a cutting blade. The cutting blade and the cutter head body are connected by a replacement assembly located between the two.

2. The interchangeable head cutting tool according to claim 1, characterized in that: The connecting assembly includes a shank tapered surface, a cutter head tapered surface, a cutter head protruding stop, a shank recessed stop, an internal hexagon screw, and a threaded insertion hole. The shank body and the cutter head body are connected by a shank tapered surface, and the cutter head body is provided with a cutter head tapered surface at one end near the shank body. The cutter head tapered surface and the shank tapered surface fit tightly together. The shank body and the cutter head body are connected by a combination of tapered surfaces for positioning. The shank recessed stop is provided at the connection end between the shank body and the cutter head body, and the cutter head protruding stop is integrally formed at one end near the shank body.

3. A replaceable head cutting tool according to claim 2, characterized in that: The protruding stop of the cutter head is in contact with the recessed stop of the handle, and the two work together. An internal hexagon screw is screwed into the handle body. One end of the internal hexagon screw passes through the handle body and extends to the outside of one end of the handle body.

4. A replaceable head cutting tool according to claim 1, characterized in that: The cutter head body has a threaded hole at the center of the connecting end that is compatible with a hexagon socket screw. One end of the hexagon socket screw is screwed into the cutter head body through the threaded hole. The handle body and the cutter head body are connected by the hexagon socket screw.

5. A replaceable head cutting tool according to claim 1, characterized in that: An O-ring is provided at the mating position between the handle body and the cutter head body, and the O-ring is fitted onto the outer surface of the internal hexagon screw.

6. A replaceable head cutting tool according to claim 2, characterized in that: The cutter head body is made of steel and manufactured through a heat treatment process.

7. A replaceable head cutting tool according to claim 2, characterized in that: The main body of the handle is made of high-performance steel or hard alloy.

8. A replaceable head cutting tool according to claim 1, characterized in that: The replacement component includes a blade groove and a locking screw. One end surface of the cutter head body has a blade groove for installing a cutting blade, and a locking screw for fixing the cutting blade is screwed onto the surface of the cutter head body.

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