CN212857923U

CN212857923U - Special milling cutter for processing aluminum-plastic combined material

Info

Publication number: CN212857923U
Application number: CN202021405779.2U
Authority: CN
Inventors: 田江松; 苏朝阳; 黎熠; 易亮; 覃家达
Original assignee: Dongguan Xinyan Precision Tool Co ltd
Current assignee: Dongguan Xinyan Precision Tool Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-04-02
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a special milling cutter of plastic-aluminum combined material processing, milling cutter includes the handle of a knife and sets up the core of a knife in the one end of handle of a knife, be connected with a sword neck between handle of a knife and the core of a knife, the core of a knife includes that three dextrorotation sets up, the uniform all-round sword of specification and three corresponding end sword, separate the interval formation between two adjacent all-round sword and be spiral helicine chip groove, the back of all-round sword is arc setting, all-round sword has all-round sword anterior angle alpha of 8 degrees and all-round sword relief angle beta of 9 degrees, all-round sword cutting edge width gamma is 0.17 mm; the three end blades are respectively distributed on the end surface of the cutter core at equal angle intervals, tooth grooves connected with corresponding chip removal grooves are formed between every two adjacent end blades, each end blade is provided with an end blade front angle delta of 6 degrees, a first end blade back angle epsilon of 12 degrees and a second end blade back angle zeta of 20 degrees, and the blade width eta of each end blade is 0.10 mm. Compared with the prior art, the milling cutter is particularly suitable for milling of aluminum-plastic combined materials, and has the advantages of high processing efficiency, low failure rate and high workpiece finish degree.

Description

Special milling cutter for processing aluminum-plastic combined material

Technical Field

The utility model belongs to the technical field of the milling cutter technique and specifically relates to a special milling cutter of plastic-aluminum combined material processing is related to.

Background

A milling cutter is a rotary tool used for milling, and is mainly used for machining planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

The processing material of the middle frame of the common mobile phone is a plastic-aluminum bonding material, and the processed workpiece is required to have a good appearance surface. However, the plastic-aluminum bonding material is a plastic containing fiber reinforcement, and when a general cemented carbide tool is used for milling, the tool strength is difficult to satisfy, and chips are easily adhered, resulting in tool breakage. After the common hard alloy cutter is milled and processed by plastic-aluminum combined materials, the problems of shortened service life, high failure rate, poor smoothness of workpieces and the like generally exist, and the capacity requirement and the quality requirement of batch processing cannot be met. There is a need for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a special milling cutter of plastic-aluminum combined material processing improves cutter intensity, prolongs the life of cutter, accords with the processingquality requirement of plastic-aluminum cell-phone center, reduces the cutter trouble, and it is high to improve machining efficiency.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a special milling cutter for processing aluminum-plastic combined materials comprises a cutter handle and a cutter core arranged at one end of the cutter handle, wherein a cutter neck is connected between the cutter handle and the cutter core, the cutter core comprises three peripheral edges which are arranged in a right-handed mode and have the same specification and three corresponding end edges, spiral chip grooves are formed between every two adjacent peripheral edges at intervals, the back surfaces of the peripheral edges are arranged in an arc mode, the peripheral edges are provided with a peripheral edge front angle alpha of 8 degrees and a peripheral edge back angle beta of 9 degrees, and the blade width gamma of each peripheral edge is 0.17 mm; the three end blades are respectively distributed on the end surface of the cutter core at equal angle intervals, tooth grooves connected with corresponding chip removal grooves are formed between every two adjacent end blades, each end blade is provided with an end blade front angle delta of 6 degrees, a first end blade back angle epsilon of 12 degrees and a second end blade back angle zeta of 20 degrees, and the blade width eta of each end blade is 0.10 mm.

In a further technical scheme, the diameter theta of the cutter handle is 4mm, the diameter iota of the cutter neck is 1.4mm, and the diameter kappa of the cutter core is 1.43 mm.

In a further technical scheme, a first chamfer is formed between the cutter core and the cutter neck, a second chamfer is formed between the cutter neck and the cutter handle, the first chamfer is 10 degrees, and the second chamfer is 15 degrees.

In a further technical scheme, three tooth sockets are sequentially arranged into a tooth, a middle tooth and three teeth along the anticlockwise direction, the opening angle of the tooth is 40 degrees, the opening angle of the middle tooth is 45 degrees, and the opening angle of the three teeth is 40 degrees.

In a further technical scheme, the outer surface of the cutter core is electroplated with a reinforcing layer made of titanium nitride material, and the thickness of the reinforcing layer is 0.05 mm.

In a further aspect, the helix angle of the helical groove is 30 °.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model provides a special milling cutter of plastic-aluminum combined material processing has intensity height, longe-lived advantage, and the milling process of the cell-phone center of specially adapted plastic-aluminum structure, cutter trouble is low, mills efficiently, and the finish is good.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

Fig. 2 is another schematic structural diagram of the present invention.

Fig. 3 is a cross-sectional view of the cartridge of the present invention.

Fig. 4 is an enlarged view of fig. 3 at a.

Fig. 5 is a plan view of the cartridge of the present invention.

Fig. 6 is a cross-sectional view of an end blade of the present invention.

Detailed Description

The following are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby.

A special milling cutter for processing aluminum-plastic combined materials is disclosed, as shown in fig. 1 to 6, the milling cutter comprises a cutter handle 1 and a cutter core 3 arranged at one end of the cutter handle 1, a cutter neck 2 is connected between the cutter handle 1 and the cutter core 3, the cutter core 3 comprises three peripheral edges 31 which are arranged in a right-handed manner and have the same specification and three corresponding end edges 33, helical chip discharge grooves 32 are respectively formed between two adjacent peripheral edges 31 at intervals, the back surfaces of the peripheral edges 31 are arranged in an arc manner, the peripheral edges 31 have peripheral edge front angles alpha of 8 degrees and peripheral edge rear angles beta of 9 degrees, and the edge width gamma of the peripheral edges 31 is 0.17 mm; the three end blades 33 are respectively distributed on the end surface of the cutter core 3 at equal angular intervals, tooth grooves 34 connected with the corresponding chip grooves 32 are formed between every two adjacent end blades 33, each end blade 33 has an end blade front angle delta of 6 degrees, a first end blade rear angle epsilon of 12 degrees and a second end blade rear angle zeta of 20 degrees, and the blade width eta of each end blade 33 is 0.10 mm. The embodiment provides a milling cutter which is made of tungsten steel and is specially used for processing an aluminum-plastic bonding material, has the advantages of high strength and long service life, is particularly suitable for milling the middle frame of a mobile phone with an aluminum-plastic structure, and has the advantages of low cutter failure, high milling efficiency and good processing surface smoothness.

Specifically, the diameter θ of the shank 1 is 4mm, the diameter ι of the neck 2 is 1.4mm, and the diameter κ of the core 3 is 1.43 mm.

Specifically, a first chamfer 21 is formed between the tool core 3 and the tool neck 2, a second chamfer 22 is formed between the tool neck 2 and the tool holder 1, the first chamfer 21 is 10 degrees, and the second chamfer 22 is 15 degrees.

Specifically, three tooth grooves 34 are sequentially provided in the counterclockwise direction as one tooth 341, a middle tooth 342 and a third tooth 343, respectively, the open angle of the one tooth 341 being 40 °, the open angle of the middle tooth 342 being 45 °, and the open angle of the third tooth 343 being 40 °.

Specifically, the outer surface of the cutter core 3 is electroplated with a reinforcing layer made of titanium nitride material, and the thickness of the reinforcing layer is 0.05 mm.

Specifically, the helical angle of the flutes 32 is 30 °.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a special milling cutter of plastic-aluminum combined material processing, milling cutter include the handle of a knife and set up in the sword core of the one end of handle of a knife, are connected with a sword neck between handle of a knife and the sword core, its characterized in that: the cutter core comprises three peripheral blades which are arranged in a right-handed mode and have the same specification and three corresponding end blades, helical chip removal grooves are formed between every two adjacent peripheral blades at intervals, the back surfaces of the peripheral blades are arranged in an arc mode, each peripheral blade is provided with a peripheral blade front angle alpha of 8 degrees and a peripheral blade back angle beta of 9 degrees, and the blade width gamma of each peripheral blade is 0.17 mm;

the three end blades are respectively distributed on the end surface of the cutter core at equal angle intervals, tooth grooves connected with corresponding chip removal grooves are formed between every two adjacent end blades, each end blade is provided with an end blade front angle delta of 6 degrees, a first end blade back angle epsilon of 12 degrees and a second end blade back angle zeta of 20 degrees, and the blade width eta of each end blade is 0.10 mm.

2. The milling cutter special for processing the aluminum-plastic bonding material as claimed in claim 1, wherein: the diameter theta of the knife handle is 4mm, the diameter iota of the knife neck is 1.4mm, and the diameter kappa of the knife core is 1.43 mm.

3. The milling cutter special for processing the aluminum-plastic bonding material as claimed in claim 2, wherein: a first chamfer is formed between the cutter core and the cutter neck, a second chamfer is formed between the cutter neck and the cutter handle, the first chamfer is 10 degrees, and the second chamfer is 15 degrees.

4. The milling cutter special for processing the aluminum-plastic bonding material as claimed in claim 1, wherein: the three tooth sockets are sequentially arranged into a tooth, a middle tooth and three teeth along the anticlockwise direction, the opening angle of the tooth is 40 degrees, the opening angle of the middle tooth is 45 degrees, and the opening angle of the three teeth is 40 degrees.

5. The milling cutter special for processing the aluminum-plastic bonding material as claimed in claim 1, wherein: the outer surface of the cutter core is electroplated with a reinforcing layer made of titanium nitride material, and the thickness of the reinforcing layer is 0.05 mm.

6. The milling cutter special for processing the aluminum-plastic bonding material as claimed in claim 1, wherein: the helix angle of the chip groove is 30 degrees.