CN212682669U

CN212682669U - Multi-groove reamer

Info

Publication number: CN212682669U
Application number: CN202021362277.6U
Authority: CN
Inventors: 汤咸贵
Original assignee: Hengyu Rongchuang Cutting Technology Suzhou Co ltd
Current assignee: Hengyu Rongchuang Cutting Technology Suzhou Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-03-12
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a reamer of multislot type, including the cutting edge section, keep away sky section and centre gripping handle section, keep away the front end that the sky section set up in centre gripping handle section, the cutting edge section sets up the front end of keeping away the sky section, two at least kerfs have been seted up in the cutting edge section, be located the well front end of cutting edge section, two at least helicla flutes have still been seted up in the cutting edge section, be linked together with the kerve, and simultaneously, the helicla flute still extends to and keeps away the sky section, be provided with the cutting edge in the cutting edge section, the well front end of cutting edge is the vertical bar structure, well rear end is helical structure, wherein, the diameter of the core thickness of cutting edge section is 0.5 ~ 0.7 times of cutting edge diameter, length at the kerve of cutting edge section is greater than or equal to the length at the helicla flute of cutting edge section, the width of vertical groove is less than. The utility model discloses a structure setting that the cutting edge section was divided can effectively improve screw machining precision and quality, improves screw machining efficiency, reduction in production cost.

Description

Multi-groove reamer

Technical Field

The utility model relates to a reamer of multislot type.

Background

The heat-resistant alloy steel material has the characteristics of high humidity resistance and strong heat intersection resistance, and is widely applied to the manufacture of products such as turbocharger housings, gas turbine parts and the like. The heat-resistant alloy steel material has the difficult-to-cut characteristics of high hardness, strong toughness and good red hardness, most of the conventional reamers made of high-speed steel are used for screw hole cutting processing of the material at present, the reamers are easy to twist off when in use, the processed screw holes are coarse in thread, large in burr and fast in reamer abrasion, the screw hole precision is difficult to guarantee, the processing speed is slow, and the production efficiency is low.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a multi-groove reamer with a novel structure, so that the reamer has more industrial utility value.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a multi-groove reamer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multi-groove reamer comprises a cutting edge section, a clearance section and a clamping handle section, wherein the clearance section is arranged at the front end of the clamping handle section, the cutting edge section is arranged at the front end of the avoidance section, at least two straight grooves are arranged on the cutting edge section and are positioned at the middle front end of the cutting edge section, at least two spiral grooves are arranged on the cutting edge section and communicated with the straight grooves, the number of the spiral grooves is equal to that of the straight grooves, meanwhile, the spiral groove also extends to the void-avoiding section, a cutting edge is arranged on the cutting edge section, the middle front end of the cutting edge is of a straight strip structure, the middle rear end of the cutting edge is of a spiral structure, wherein the diameter of the core thickness of the cutting edge section is 0.5 to 0.7 times of the diameter of the cutting edge, the length of the straight groove in the cutting edge section is larger than or equal to the length of the spiral groove in the cutting edge section, and the width of the straight groove is smaller than that of the spiral groove.

Preferably, the multi-groove reamer is provided with a guide cutting edge at the front end of the cutting edge.

Preferably, in the multi-groove reamer, the number of the straight grooves on the cutting edge section is 4, and the number of the spiral grooves is 4.

Preferably, in the multi-groove reamer, the cutting edge section and the clearance section are both in a cemented carbide structure, and the outer surface of the cutting edge section is coated with an AlTiN coating.

Preferably, the multi-groove reamer has the cutting edge section, the clearance section and the clamping handle section which are integrally formed.

Preferably, the multi-groove reamer is characterized in that the spiral grooves are provided with different spiral angles on the cutting edge section and the clearance section, and the spiral angles are 20-25 degrees.

Preferably, the multi-groove reamer is characterized in that: the guide cutting edge angle of the guide cutting edge is 15-20 degrees.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the utility model discloses reamer is used in heat-resisting alloy steel processing through the structure setting of cutting edge part, can effectively improve screw machining precision and quality, improves screw machining efficiency, reduction in production cost.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Examples

As shown in fig. 1, a multi-groove reamer comprises a cutting edge section 1, a clearance section 2 and a clamping handle section 3, wherein the clearance section 2 is arranged at the front end of the clamping handle section 3, the cutting edge section 1 is arranged at the front end of the clearance section 2, at least two straight grooves 4 are arranged on the cutting edge section 1 and are positioned at the middle front end of the cutting edge section 1, at least two spiral grooves 5 are also arranged on the cutting edge section 1 and are communicated with the straight grooves 4, the number of the spiral grooves 5 is equal to that of the straight grooves 4, meanwhile, the spiral grooves 5 also extend to the clearance section 2, a cutting edge 6 is arranged on the cutting edge section 1, the middle front end of the cutting edge 6 is of a straight bar structure, and the middle rear end of the cutting edge is of a spiral structure, wherein the diameter of the core thickness of the cutting edge section 1 is 0.5-0.7 times of the diameter of the cutting edge, and the length of the straight groove 4 of the cutting edge section 1 is greater than or equal to that of the spiral groove 5 of the cutting edge section 1, the width of the straight groove 4 is smaller than that of the spiral groove 5.

The utility model discloses in cutting edge 6's front end is provided with direction cutting edge 7, direction cutting edge 7's direction cutting edge angle is 15 ~ 20 degrees.

The utility model discloses in straight flute 4 on the cutting edge section 1 is equipped with 4, and helicla flute 5 also is equipped with 4 simultaneously.

The utility model discloses in cutting edge section 1 and keep away empty section 2 and be the carbide structure setting, the surface coating of cutting edge section 1 has the AlTiN coating.

The utility model discloses in cutting edge section 1, keep away empty section 2 and 3 integrated into one piece of centre gripping handle section.

The utility model discloses in helical flute 5 is equipped with dissimilar helix angle on cutting edge section 1 and clearance section 2, and its helix angle is at 20 ~ 25 degrees.

The structure that adopts big core thickness sets up, and the diameter that the core is thick increases to 0.5 ~ 0.7 times of cutting edge diameter, has increased holistic rigidity and intensity of reamer, can effectively prevent because of the reamer core is thick less, and the rigidity is not enough to lead to the reamer to twist off the scheduling problem.

Through increasing the straight flute width to increase and hold bits and chip removal space, because the toughness of heat-resisting alloy steel material is strong, the smear metal is rectangular form, increases and holds bits and chip removal space, can effectually prevent because the chip removal is smooth and the reamer twist-off that stifled bits caused.

The spiral angle of the spiral groove 5 is 20-25 degrees, so that the cutting resistance is reduced, the cutting is light and stable, and the surface quality and the processing quality of the thread can be improved.

The guide cutting edge angle of the guide cutting edge 7 is set to be 15-20 degrees by adopting a smaller angle, the length of the guide cutting edge 7 can be increased, the cut-in of the reamer can be slowly and gradually transited to the maximum cutting diameter of the reamer, the cut-in process is stable, and the thread machining precision can be improved.

The reamer body is arranged by adopting a hard alloy structure, and the outer surface of the cutting edge part 1 is coated with an AlTiN coating. Can effectively increase reamer wear resistance and life, coefficient of friction when reducing the cutting when improving screw surface quality, can also use higher cutting speed to process, further improve production efficiency.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A multi-groove reamer is characterized in that: the cutting tool comprises a cutting edge section (1), a clearance section (2) and a clamping handle section (3), wherein the clearance section (2) is arranged at the front end of the clamping handle section (3), the cutting edge section (1) is arranged at the front end of the clearance section (2), at least two straight grooves (4) are formed in the cutting edge section (1) and are positioned at the middle front end of the cutting edge section (1), at least two spiral grooves (5) are formed in the cutting edge section (1) and are communicated with the straight grooves (4), the number of the spiral grooves (5) is equal to that of the straight grooves (4), meanwhile, the spiral grooves (5) also extend to the clearance section (2), a cutting edge (6) is arranged on the cutting edge section (1), the middle front end of the cutting edge (6) is of a straight strip structure, the middle rear end of the cutting edge is of a spiral structure, and the diameter of the core thickness of the cutting edge section (1) is 0.5-0.7 times of the diameter of the cutting edge, the length of the straight groove (4) on the cutting edge section (1) is larger than or equal to the length of the spiral groove (5) on the cutting edge section (1), and the width of the straight groove (4) is smaller than the width of the spiral groove (5).

2. The multi-flute reamer of claim 1 wherein: the front end of the cutting edge (6) is provided with a guide cutting edge (7).

3. The multi-flute reamer of claim 1 wherein: the number of the straight grooves (4) on the cutting edge section (1) is 4, and the number of the spiral grooves (5) is also 4.

4. The multi-flute reamer of claim 1 wherein: the cutting edge section (1) and the clearance section (2) are both arranged in a hard alloy structure, and the outer surface of the cutting edge section (1) is coated with an AlTiN coating.

5. The multi-flute reamer of claim 1 wherein: the cutting edge section (1), the clearance section (2) and the clamping handle section (3) are integrally formed.

6. The multi-flute reamer of claim 3 wherein: the spiral groove (5) is provided with different spiral angles on the cutting edge section (1) and the clearance section (2), and the spiral angle is 20-25 degrees.

7. The multi-flute reamer of claim 2 wherein: the guide cutting edge angle of the guide cutting edge (7) is 15-20 degrees.