CN217193103U

CN217193103U - Nonstandard thread milling cutter

Info

Publication number: CN217193103U
Application number: CN202123225764.5U
Authority: CN
Inventors: 黄晶晶; 汪斓
Original assignee: Chengdu Bangpu Cutting Tools Co ltd
Current assignee: Chengdu Bangpu Cutting Tools Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-08-16
Anticipated expiration: 2031-12-21

Abstract

The utility model provides a non-standard thread milling cutter, which comprises a cutter handle and a cutter body, wherein the cutter handle is used for connecting a connecting clamping position, the cutter body is arranged at the front end of the cutter handle, the diameter of the cutter body is larger than that of the cutter handle, and a round platform cutter body structure is formed at the front end of the cutter handle; two mutually symmetrical side walls of the cutter body are provided with blade mounting grooves, milling blades for milling are mounted in the blade mounting grooves, and the blade mounting grooves are matched with the milling blades in shape; the bottom of the blade mounting groove is of an inclined structure, and when the milling blade is mounted in the blade mounting groove, the cutting part of the blade protrudes out of the side wall of the cutter body for milling; through setting up round platform shape cutter body protrusion in the handle of a knife, form the convex hole cutting structure in both sides, set up the symmetrical cutting blade that can dismantle wantonly simultaneously, make things convenient for the cutting and easily change, three tool bit can be used wantonly to the triangle-shaped tool bit, and effectual reduce cost can satisfy some special processing demands, has stronger spreading value.

Description

Nonstandard thread milling cutter

Technical Field

The utility model relates to the technical field of machining, especially, relate to a nonstandard thread milling cutter.

Background

The traditional thread processing method mainly adopts a threading tool to turn threads or adopts a screw tap and a die to manually tap and sleeve and buckle. With the development of numerical control machining technology, particularly the appearance of a three-axis linkage numerical control machining system, a more advanced thread machining mode, namely, the numerical control milling of threads, is realized. Compared with the traditional thread machining mode, the thread milling machining has great advantages in machining precision and machining efficiency, and is not limited by a thread structure and the thread turning direction during machining, for example, one thread milling cutter can machine internal threads and external threads with different turning directions. For the threads which do not allow a transition buckle or a tool withdrawal groove structure, the threads are difficult to machine by adopting the traditional turning method or a screw tap or a screw die, but are very easy to realize by adopting numerical control milling. In addition, the durability of the thread milling cutter is ten times or even tens of times of that of the screw tap, and the adjustment of the diameter size of the thread is very convenient in the process of numerical control milling of the thread, which is difficult to achieve by adopting the screw tap and the die. Due to the many advantages of thread milling, the milling process has been widely adopted for the mass production of threads in developed countries.

In the prior art, a thread milling cutter usually adopts a rod-shaped structure and consists of a milling cutter rod and a blade, and is characterized in that the blade is easy to manufacture and has lower price, and some thread blades can cut double surfaces, but the impact resistance is slightly poorer than that of the whole thread milling cutter. Therefore, the tool is often recommended for machining aluminum alloy materials; however, the rod-shaped structure does not satisfy all the processing requirements, so a new milling cutter structure is needed to solve the defects and shortcomings in the prior art.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a nonstandard thread milling cutter forms the convex hole cutting structure in both sides through setting up round platform shape cutter body protrusion in the handle of a knife, sets up the cutting blade of the symmetry that can dismantle wantonly simultaneously, and convenient cutting and be liable to change, triangle-shaped tool bit can use three tool bit wantonly, and effectual reduce cost can satisfy some special processing demands, has stronger spreading value.

In order to achieve the purpose, the utility model provides a non-standard thread milling cutter, which is characterized by comprising a handle and a cutter body, wherein the handle is used for connecting a clamping position, the cutter body is arranged at the front end of the handle, the diameter of the cutter body is larger than that of the handle, and a round platform cutter body structure is formed at the front end of the handle; two mutually symmetrical side walls of the cutter body are provided with blade mounting grooves, milling blades for milling are mounted in the blade mounting grooves, and the blade mounting grooves are matched with the milling blades in shape; the bottom of the blade mounting groove is of an inclined structure, and when the milling blade is mounted in the blade mounting groove, the cutting part of the blade protrudes out of the side wall of the cutter body and is used for milling.

As a specific scheme: the milling blade is a triangular blade, the three angular positions of the triangular blade are provided with cutting parts, and the cutting parts are provided with cutting edges for cutting and blade backs positioned at the back parts of the cutting edges.

As a preferred embodiment: the cutting edge angle of the cutting edge is 15 degrees, and the cutting edge angle of the back edge of the cutting edge is 60 degrees.

As a preferred embodiment: the cutter blade is characterized in that a screw hole is formed in the axis position of the triangular cutter blade, a thread groove is formed in the axis position of the cutter blade mounting groove, and the screw hole of the triangular cutter blade is locked and fixed in the thread groove through a screw.

As a specific scheme: the cutting edge of the blade is a conical cutting edge.

As a specific scheme: the cutter body is far away from the one side of handle of a knife has seted up circular recess, the internal diameter of circular recess is greater than the handle of a knife diameter.

As a specific scheme: the blade mounting groove is a mounting groove matched with the shape of the milling blade part, and when the milling blade is mounted in the blade mounting groove, one edge part of the blade protrudes out of the plane of the cutter body far away from the cutter handle.

As a specific scheme: the handle and the cutter body are integrally formed.

As a specific scheme: the tool holder and the tool body are made of alloy tool steel.

The utility model has the advantages that: compared with the prior art, the utility model provides a non-standard thread milling cutter, including the handle of a knife that is used for connecting the clamping position and the cutter body of locating the handle of a knife front end, the diameter of cutter body is greater than the diameter of handle of a knife, forms round platform cutter body structure at the front end of handle of a knife; two mutually symmetrical side walls of the cutter body are provided with blade mounting grooves, milling blades for milling are mounted in the blade mounting grooves, and the blade mounting grooves are matched with the milling blades in shape; the bottom of the blade mounting groove is of an inclined structure, and when the milling blade is mounted in the blade mounting groove, the edge part of the blade protrudes out of the side wall of the cutter body for milling; through setting up round platform shape cutter body protrusion in the handle of a knife, form the convex hole cutting structure in both sides, set up the symmetrical cutting blade that can dismantle wantonly simultaneously, make things convenient for the cutting and easily change, three tool bit can be used wantonly to the triangle-shaped tool bit, and effectual reduce cost can satisfy some special processing demands, has stronger spreading value.

Drawings

Fig. 1 is a three-dimensional view of the present invention;

fig. 2 is a bottom view of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a left side view of the present invention;

fig. 5 is a front view of the milling insert of the present invention;

fig. 6 is a cross-sectional view of the interior of the milling insert according to the present invention.

The main component symbols are as follows:

1. a knife handle; 2. a cutter body; 3. milling the insert; 31. screw holes; 32. a blade part; 33. a blade back; 4. a circular groove.

Detailed Description

In order to more clearly describe the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or including indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the present invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

The traditional thread processing method mainly adopts a threading tool to turn threads or adopts a screw tap and a die to manually tap and sleeve and buckle. With the development of numerical control machining technology, particularly the appearance of a three-axis linkage numerical control machining system, a more advanced thread machining mode, namely, the numerical control milling of threads, is realized. Compared with the traditional thread machining mode, the thread milling machining mode has great advantages in machining precision and machining efficiency, and is not limited by a thread structure and the thread turning direction during machining, and for example, one thread milling cutter can machine internal threads and external threads with different turning directions. For the threads which are not allowed to have the transition buckle or the tool withdrawal groove structure, the threads are difficult to machine by adopting the traditional turning method or a screw tap or a screw die, but are easy to realize by adopting numerical control milling.

In order to solve the technical problems that the prior art can not solve and the technical defects and shortcomings that exist, the utility model particularly provides a non-standard thread milling cutter, please refer to fig. 1-6, the utility model provides a scheme includes: the tool comprises a tool handle 1 and a tool body 2, wherein the tool handle 1 is used for connecting a clamping position and the tool body 2 is arranged at the front end of the tool handle 1, the diameter of the tool body 2 is larger than that of the tool handle 1, and a circular truncated cone tool body 2 structure is formed at the front end of the tool handle 1; two mutually symmetrical side walls of the cutter body 2 are provided with blade mounting grooves, milling blades 3 for milling are mounted in the blade mounting grooves, and the blade mounting grooves are matched with the milling blades 3 in shape; the bottom of the blade mounting groove is of an inclined structure, and when the milling blade 3 is mounted in the blade mounting groove, the edge part 32 of the blade protrudes out of the side wall of the cutter body 2 for milling; in the prior art, the rod-shaped tool bit can realize limited machining modes, the size of a machining hole which can be realized is limited, and the machining hole is limited when aiming at threads in some unconventional through holes; the structure of the detachable and replaceable milling blade 3 can ensure the recycling of the cutter body 2, and only the blade needs to be replaced.

In one particular embodiment, mention is made of: the milling blade 3 is a triangular blade, the three angular positions of the triangular blade are provided with edge parts 32, and the edge parts 32 are provided with cutting edges for cutting and edge backs 33 positioned at the back parts of the cutting edges; the blade parts 32 are mainly used for milling, and the triangular blade is provided with three processing blade parts 32, so that three purposes of one blade can be realized, and the cost waste is avoided.

In a preferred embodiment, specific mention is made of: the cutting edge angle is 15 degrees, and the cutting edge angle of the back 33 of the cutting edge is 60 degrees.

In a preferred embodiment, specific mention is made of: the axis position of the triangular blade is provided with a screw hole 31, the axis position of the blade mounting groove is provided with a thread groove, and the screw hole 31 of the triangular blade is locked and fixed in the thread groove through a screw; the screw thread connection mode is easy to replace and the connection is stable.

In one particular embodiment, mention is made of: the blade cutting edge is the toper blade, and the toper blade is easily milled.

In one particular embodiment, mention is made of: circular groove 4 has been seted up to the one side of cutter body 2 keeping away from handle of a knife 1, and the internal diameter of circular groove 4 is greater than handle of a knife 1 diameter, and circular groove 4 can reduce the required material reduce cost of cutter body 2.

In one particular embodiment, mention is made of: the blade mounting groove is a mounting groove matched with the shape of part of the milling blade 3, and when the milling blade 3 is mounted in the blade mounting groove, one edge part 32 of the blade protrudes out of the plane of the cutter body 2 far away from the cutter handle 1; the protruding plane is easy to mill and not easy to accumulate milling chips.

In one particular embodiment, mention is made of: the knife handle 1 and the knife body 2 are integrally formed; the integrally formed tool handle 1 and the tool body 2 can have stronger stability during machining, are not easy to break, and can effectively reduce machining errors by reducing connection.

In one particular embodiment, mention is made of: the tool holder 1 and the tool body 2 are made of alloy tool steel; the alloy tool steel is a kind of steel with added Cr, Mo, W, V and other alloy elements to raise hardenability, toughness, wear resistance and heat resistance; it is mainly used for manufacturing measuring tools, cutting tools, impact-resistant tools, cold and hot dies and tools with special purposes; the cutting tool generates strong abrasion and heat under the working condition, and also vibrates and bears certain impact load; the steel for cutting tools should have high hardness, wear resistance, red hardness and good toughness. In order to ensure that the alloy steel has high hardness and meet the requirement of forming alloy carbide, the mass fraction of carbon in the steel is generally 0.80-1.45%; chromium is the main alloy element of the steel, the mass fraction is generally 0.50-1.70%, and some steels also contain tungsten to improve the performance of cutting metal. The tool steel contains alloy elements, so that the tool steel has better hardenability than carbon tool steel, less deformation generated by heat treatment, and high hardness and wear resistance. The steel used in common use includes chromium steel, silicon-chromium steel, chromium-tungsten-manganese steel, etc.

The utility model has the advantages that:

through setting up round platform shape cutter body 2 protrusion in handle of a knife 1, form the convex hole cutting structure in both sides, set up the symmetrical cutting blade that can dismantle wantonly simultaneously, make things convenient for the cutting and be liable to change, three tool bit can be used wantonly to the triangle-shaped tool bit, and effectual reduce cost can satisfy some special processing demands, has stronger spreading value.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A non-standard thread milling cutter is characterized by comprising a cutter handle and a cutter body, wherein the cutter handle is used for connecting a connecting clamping position, the cutter body is arranged at the front end of the cutter handle, the diameter of the cutter body is larger than that of the cutter handle, and a circular truncated cone cutter body structure is formed at the front end of the cutter handle; two mutually symmetrical side walls of the cutter body are provided with blade mounting grooves, milling blades for milling are mounted in the blade mounting grooves, and the blade mounting grooves are matched with the milling blades in shape; the bottom of the blade mounting groove is of an inclined structure, and when the milling blade is mounted in the blade mounting groove, the cutting part of the blade protrudes out of the side wall of the cutter body and is used for milling.

2. A non-standard thread milling cutter according to claim 1, wherein the milling insert is a triangular insert provided with an edge portion at each of three angular positions, the edge portion being provided with an edge for cutting and a land at the back of the edge.

3. A non-standard thread milling cutter according to claim 2, wherein the cutting edge has an edge angle of 15 ° and the back of the cutting edge has an edge angle of 60 °.

4. A non-standard thread milling cutter according to claim 2, wherein the triangular insert has a screw hole formed at an axial position thereof, the insert mounting recess has a threaded recess formed at an axial position thereof, and the screw hole of the triangular insert is locked and fixed to the threaded recess by a screw.

5. A non-standard thread milling cutter according to claim 1, wherein the cutting edge of the insert is a tapered cutting edge.

6. A non-standard thread milling cutter according to claim 1, wherein a circular groove is formed in a surface of the cutter body remote from the shank, and an inner diameter of the circular groove is larger than a diameter of the shank.

7. A non-standard thread milling cutter according to claim 1, wherein the insert mounting groove is a mounting groove adapted to the shape of the milling insert portion, and a cutting portion of the insert protrudes from a plane of the cutter body away from the shank when the milling insert is mounted in the insert mounting groove.

8. A non-standard thread milling cutter according to claim 1, wherein the shank and the body are integrally formed.

9. A non-standard thread milling cutter according to claim 1, wherein the shank and the body are made of alloy tool steel.