CN212419786U

CN212419786U - Composite milling cutter integrating chamfering and U-shaped milling

Info

Publication number: CN212419786U
Application number: CN202021154660.2U
Authority: CN
Inventors: 唐书军; 赵叶林; 杨军鹏
Original assignee: HUAWEINA PRECISION TOOLS (KUNSHAN) CO LTD
Current assignee: Jinzhou Jinggong Technology (Kunshan) Co.,Ltd.
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2021-01-29
Anticipated expiration: 2030-06-20

Abstract

The utility model discloses a composite milling cutter integrating chamfering and U-shaped milling, which comprises a cutter handle and a cutting edge, wherein the cutter handle is positioned at the rear part and used for clamping, and the cutting edge is positioned at the front part and used for milling; form between two adjacent sword grooves and grind the back of the body, grind the tip of the back of the body and form the end sword, grind the middle part of the back of the body and form U type sword, form the chamfer sword between U type sword and the end sword, form the chip groove between two adjacent end sword, the chip groove links up with the sword groove, and the anterior angle of U type sword is negative off-centre cutting, and the relief angle of U type sword 6 ~ 8, the relief angle of chamfer sword 10 ~ 12, the relief angle of end sword is 9 ~ 11. The utility model discloses collect chamfer and U type mill in an organic whole, can satisfy the demand that product chamfer and U type curved surface processed together.

Description

Composite milling cutter integrating chamfering and U-shaped milling

Technical Field

The utility model relates to a milling cutter especially relates to a collect chamfer and U type and mill compound milling cutter in an organic whole.

Background

With the development of various products, customers have more requirements on the surface stations of the cutter processing products and the service life of the cutter is more and more required. Some products require chamfering and U-shaped curved surface machining, however, the existing milling cutter cannot meet these requirements at the same time.

Disclosure of Invention

In order to overcome the defects, the utility model provides a collect chamfer and U type and mill in compound milling cutter of an organic whole can satisfy the demand that product chamfer and U type curved surface processed together.

The utility model discloses a solve the technical scheme that its technical problem adopted and be:

a composite milling cutter integrating chamfering and U-shaped milling comprises a cutter handle positioned at the rear part and used for clamping and a cutting edge positioned at the front part and used for milling, wherein three equally-divided spiral cutter grooves are formed in the surface of the cutting edge, and the cutter grooves extend to the cutter handle from the end part; the back grinding tool comprises two adjacent tool grooves, wherein a back grinding body is formed between the two adjacent tool grooves, an end blade is formed at the end part of the back grinding body, a U-shaped blade is formed in the middle of the back grinding body, a chamfer blade is formed between the U-shaped blade and the end blade, the end blade is composed of two relief angles, the chamfer blade is composed of three straight edge relief angles, the U-shaped blade is composed of three relief angles, a chip containing groove is formed between the two adjacent end blades, the chip containing groove is connected with the tool grooves, the front angle of the U-shaped blade is negative eccentric cutting, the relief angle of the U-shaped blade is 6-8 degrees, the relief angle of the chamfer blade is 10-12 degrees, and the relief angle of the end blade is 9-.

As a further improvement of the utility model, the core thickness of cutting edge is 32% ~ 36% of external diameter, the chamfer sword reaches the width of the ligament of U type sword is 0.06 ~ 0.1mm, the diameter of handle of a knife is 12 mm.

The utility model has the advantages that: the utility model provides a collect chamfer and U type mill in compound milling cutter of an organic whole, the cutting edge comprises end sword, chamfer sword and U type sword triplex. The end edge consists of two relief angles, the chamfer edge consists of three straight edge relief angles, and the U-shaped edge consists of three straight edge relief angles. The end edge is used for processing a horizontal plane of a product, the chamfering edge is used for processing a chamfering of the product, and the U-shaped edge is used for processing a U-shaped surface of the product. Therefore, the utility model discloses have the plane and mill, chamfer and mill, the U type mill the function, realized that the quire is multi-purpose, can satisfy the demand that product chamfer and U type curved surface processed together. The chip grooves between the end blades are machined by the aid of the forming grinding wheels, the three chip grooves are distributed in an equal distribution mode, chip removal functions of the chip grooves are greatly improved, and surface accuracy of products is improved. The three spiral cutter grooves on the surface of the cutting edge are distributed in an equal distribution mode, and the three cutter grooves correspond to the three chip grooves one to one, so that the chip removal function is further improved.

Drawings

FIG. 1 is a schematic structural view of a composite milling cutter of the present invention integrating chamfering and U-milling;

FIG. 2 is a schematic structural view of a composite milling cutter tip of the present invention integrating chamfering and U-milling;

FIG. 3 is a schematic diagram of the core thickness of the composite milling cutter of the present invention integrating chamfering and U-milling;

the following description is made with reference to the accompanying drawings:

1-handle, 2-blade, 21-blade, 22-back, 23-end, 24-U-shaped, 25-chamfer, 26-chip flute, 27-front angle of U-shaped, 28-back angle of U-shaped, 29-ligament of U-shaped, and core thickness of D-blade.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.

Referring to fig. 1 and 2, in order to provide the composite milling cutter integrating chamfering and U-shaped milling, the composite milling cutter includes a holder 1 for clamping at the rear and a blade 2 for milling at the front, three equally divided helical cutter grooves 21 are formed on the surface of the blade, and the cutter grooves extend from the end to the holder; a grinding back 22 is formed between every two adjacent cutter grooves, an end blade 23 is formed at the end of the grinding back, a U-shaped blade 24 is formed in the middle of the grinding back, a chamfer blade 25 is formed between the U-shaped blade and the end blade, a chip groove 26 is formed between every two adjacent end blades and connected with the cutter grooves, a front angle 27 of the U-shaped blade is cut with a negative eccentricity, a back angle 28 of the U-shaped blade is 6-8 degrees, a back angle of the chamfer blade is 10-12 degrees, and a back angle of the end blade is 9-11 degrees.

In the structure, the cutting edge consists of an end cutting edge, a chamfer cutting edge and a U-shaped cutting edge. The end edge consists of two relief angles, the chamfer edge consists of three straight edge relief angles, and the U-shaped edge consists of three straight edge relief angles. The end edge is used for processing a horizontal plane of a product, the chamfering edge is used for processing a chamfering of the product, and the U-shaped edge is used for processing a U-shaped surface of the product. Therefore, the utility model discloses have the plane and mill, chamfer and mill, the U type mill the function, realized that the quire is multi-purpose, can satisfy the demand that product chamfer and U type curved surface processed together. The chip grooves between the end blades are machined by the aid of the forming grinding wheels, the three chip grooves are distributed in an equal distribution mode, chip removal functions of the chip grooves are greatly improved, and surface accuracy of products is improved. The three spiral cutter grooves on the surface of the cutting edge are distributed in an equal distribution mode, and the three cutter grooves correspond to the three chip grooves one to one, so that the chip removal function is further improved.

Preferably, the core thickness D of the blade is 32% -36% of the outer diameter, the widths of the chamfer blade and the ligament 29 of the U-shaped blade are 0.06-0.1 mm, and the diameter of the knife handle is 12 mm. The ligament design that will be used for shaping chamfer sword and U type sword is narrow ligament, and is preferred, and the width of the ligament of chamfer sword and U type sword is 0.06mm, very big improvement the processing product surface precision.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a collect chamfer and U type mill compound milling cutter in an organic whole, is used for handle of a knife (1) of centre gripping and the cutting edge (2) that are used for milling that are located the front portion including being located the rear portion, its characterized in that: three equally-divided spiral knife grooves (21) are formed in the surface of the knife edge, and extend from the end part to the knife handle; a back grinding body (22) is formed between every two adjacent cutter grooves, an end edge (23) is formed at the end portion of the back grinding body, a U-shaped edge (24) is formed in the middle of the back grinding body, a chamfer edge (25) is formed between the U-shaped edge and the end edge, the end edge is composed of two relief angles, the chamfer edge is composed of three straight edge relief angles, the U-shaped edge is composed of three straight edge relief angles, a chip receiving groove (26) is formed between every two adjacent end edges, the chip receiving groove is connected with the cutter grooves, a front angle (27) of the U-shaped edge is negative eccentric cutting, a relief angle (28) of the U-shaped edge is 6-8 degrees, a relief angle of the chamfer edge is 10-12 degrees, and a relief angle of the end edge is 9-11 degrees.

2. The compound milling cutter integrating chamfering and U-shaped milling according to claim 1 is characterized in that: the core thickness (D) of the blade is 32% -36% of the outer diameter, the width of the chamfer blade and the ligament (29) of the U-shaped blade is 0.06-0.1 mm, and the diameter of the knife handle is 12 mm.