CN210548364U

CN210548364U - Single-edge milling cutter for processing plastic materials

Info

Publication number: CN210548364U
Application number: CN201921217631.3U
Authority: CN
Inventors: 咸志鹏
Original assignee: Jiangmen Zhongdao Precision Technology Co ltd
Current assignee: Jiangmen Zhongdao Precision Technology Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-19
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a single-edged milling cutter for processing plastic material, including the cutter arbor, set up in the cutting part of cutter arbor one end, the cutting part is including connecting the transition awl of cutter arbor, connection the transition awl is kept away from the sword core of cutter arbor one end, set up in the single circumference sword of the surface of sword core, sword core diameter is 0.15 millimeter, the circumference sword sets up for the levogyration, the helix angle of circumference sword is 23, the external diameter of circumference sword is 1.2 millimeters. The utility model discloses a single-blade milling cutter for processing plastic material has intensity height, longe-lived characteristics, can satisfy the needs of processing gum material, reduces the cutter trouble.

Description

Single-edge milling cutter for processing plastic materials

Technical Field

The utility model relates to a machining cutter especially relates to a single-blade milling cutter for processing plastic material.

Background

In the prior art, most of mobile phone middle frames are made of metal materials, but the mobile phone middle frame made of the metal materials has the problems of high cost, time consumption in manufacturing and signal shielding.

In this regard, applications have emerged in which gum materials are used to make cell phone bezels.

However, the cutter for processing the middle frame of the mobile phone is very fine, the strength of the cutter is difficult to meet, the service life of the cutter is reduced, and faults are easy to occur in processing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, provide a single-blade milling cutter for processing plastic material, have intensity height, longe-lived characteristics, can satisfy the needs of processing gum material, reduce the cutter trouble.

The utility model discloses a realize through following technical scheme:

the utility model discloses a first aspect provides a single-edged milling cutter for processing plastic material, including the cutter arbor, set up in the cutting part of cutter arbor one end, the cutting part is including connecting the transition awl, the connection of cutter arbor the transition awl is kept away from the sword core of cutter arbor one end, set up in a single circumference sword of the surface of sword core, sword core diameter is 0.15 millimeter, the circumference sword sets up for the levogyration, the helix angle of circumference sword is 23, the external diameter of circumference sword is 1.2 millimeters.

The beneficial effects are that: compared with the prior art, the single-blade milling cutter for processing the plastic material is provided with only one circumferential blade, so that the influence of the manufacturing difference of a plurality of circumferential blades on the processing quality is avoided, and the processing quality is further improved; meanwhile, a larger chip removal space is formed by reasonably setting the helical angle, so that chips generated by machining can be conveniently discharged; in addition, the size of the cutter core and the size of the circumferential edge are reasonably set, and the cutter core and the circumferential edge are matched with corresponding spiral intersection, so that the strength and the rigidity of the milling cutter are improved as much as possible under the condition that the size of the single-edge milling cutter is not increased, the service life of the milling cutter is prolonged, faults are reduced, and the requirement for processing plastic materials is met.

According to a first aspect of the present invention, a single-edge milling cutter for processing plastic materials is provided, preferably, the circumferential edge is provided with a 24 ° rake angle.

The cutting edge is sharp, the cutting force is small, and the requirement of high-speed cutting is met.

According to the utility model discloses a single-edged milling cutter for processing plastic material of first aspect, it is preferred, the circumference sword is provided with 14 relief angles, the relief angle width of circumference sword is 0.1 to 0.12 millimeter.

The milling cutter has the advantages that the larger and reasonable back angle is arranged, the contact between the milling cutter and the machined surface is reduced, the heat generated by friction is reduced, the heat transfer is also reduced, and the problems of aggravated milling cutter abrasion and overhigh milling cutter temperature are avoided.

According to the utility model discloses a single-edged milling cutter for processing plastic material of first aspect, it is preferred, the circumference sword is provided with the clear back relief angle of a plurality of.

Beneficially, by means of the arrangement of the plurality of back clearance angles, the avoidance space of the milling cutter can be increased, the milling cutter can reasonably avoid the machined surface, interference is avoided, and further the rigidity of the milling cutter is kept.

According to the utility model discloses a single-edged milling cutter for processing plastic material of first aspect, it is preferred, the quantity of clear back relief angle is 13.

Profitable is, through setting up the clear back relief angle that reaches 13 as many as to, 13 clear back relief angles arrange along milling cutter's circumferencial direction, and the abundant effect of dodging that plays can avoid the circumference sword to set up too big relief angle again, avoids circumference sword intensity not enough.

According to the first aspect of the present invention, preferably, the cutting portion further includes an end tooth, and the end tooth is provided with a-23 ° rake angle.

Advantageously, in order to provide the milling cutter with an end milling function, it is also possible to provide the cutting portion with end teeth, which are connected together with the circumferential edge; meanwhile, the end teeth are provided with negative rake angles of-23 degrees, so that the impact resistance of the end teeth is improved.

According to the utility model discloses a single-edged milling cutter for processing plastic material of first aspect, it is preferred, the end tooth is provided with 12 relief angles.

Beneficially, through setting up reasonable and the back angle of slightly littleer, can increase the volume of end tooth, increase the thickness and the intensity of end tooth, and then, improve the intensity and the life-span of whole milling cutter.

According to the utility model discloses a single-blade milling cutter for processing plastic material of first aspect, it is preferred, the end tooth is provided with the 20 back angle faces of connecting 12 back angle faces, the total width of back angle face of end tooth is 0.1 millimeter.

The large-angle 20-degree rear angle is set, and meanwhile, the total width of the rear angle surface is limited, so that the contact area between the end tooth and the machined surface is reduced as much as possible, the abrasion is reduced, and the heat is reduced.

According to the utility model discloses a single-edged milling cutter for processing plastic material of first aspect, it is preferred, the sword inclination of end tooth is 3.

The cutter has the advantages that the large blade inclination angle is arranged, so that scraps can be conveniently discharged, the vibration and the impact of a cutter point are reduced, and the surface quality of machining is ensured.

According to the utility model discloses a single-edged milling cutter for processing plastic material of first aspect, it is preferred, milling cutter length is 50 millimeters, sword core length is 5 millimeters, the circumference sword is followed the length of sword core axis direction is 4 millimeters.

The milling cutter has the advantages that the length of the milling cutter, the length of the cutter core and the length of the circumferential edge are reasonably set, so that the requirement for clamping the milling cutter is met, meanwhile, the thin and short cutting part is reserved, the strength of the cutting part is ensured, and the requirement for processing plastic materials is met.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural view of a single-edge milling cutter for processing plastic materials according to the present invention;

fig. 2 is another directional view of the single-edge milling cutter of fig. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1, a single-edge milling cutter for processing plastic material, specifically, 50 mm in length, is provided.

The milling cutter structurally comprises a cutter bar 1 and a cutting part arranged at one end of the cutter bar 1. The cutter bar 1 is used for clamping and fixing a milling cutter, and the cutting part is used for machining and cutting a workpiece.

Specifically, the cutting part comprises a transition cone 2 connected with the cutter rod 1 and a cutter core connected with one end, far away from the cutter rod 1, of the transition cone 2.

The knife core is characterized in that a single circumferential edge 3 is arranged on the outer surface of the knife core, the diameter of the knife core is 0.15 mm, the circumferential edge 3 is arranged in a left-handed mode, the diameter of the knife core is 0.15 mm, and the length of the knife core is 5 mm.

The outer surface of the cutter core is provided with a single circumferential blade 3, the circumferential blade 3 is arranged in a left-handed mode, the spiral angle of the circumferential blade 3 is 23 degrees, and the outer diameter of the circumferential blade 3 is 1.2 millimeters.

Firstly, through the length of reasonable setting milling cutter length, sword core length and circumference sword 3, both satisfied the needs of milling cutter clamping, simultaneously, reserve the cutting part of thin and short, ensure the intensity of cutting part, satisfy the demand of processing plastic material.

Secondly, most central, this embodiment is provided with only one circumference sword 3 to, avoid the manufacturing difference of a plurality of circumference sword 3 to produce the influence to processingquality, and then, improve machining quality.

Meanwhile, a larger chip removal space is formed by reasonably setting the spiral angle, so that chips generated by machining can be conveniently discharged.

In addition, the cutter core and the circumferential edge 3 are reasonably arranged and matched with corresponding spiral intersection, so that the strength and rigidity of the milling cutter are improved as much as possible under the condition that the size of the single-edge milling cutter is not increased, the service life of the milling cutter is prolonged, faults are reduced, and the requirement for processing plastic materials is met.

With regard to the arrangement of the circumferential edge 3, in some embodiments, said circumferential edge 3 may be provided with a rake angle of 24 °.

The outstanding is, set up great anterior angle for the blade is sharp, and cutting force is little, satisfies the needs that cut at a high speed.

In some embodiments, the circumferential edge 3 may be provided with a relief angle of 14 °, and the relief angle width of the circumferential edge 3 is 0.1 to 0.12 mm.

It is comparatively obvious, through setting up great and reasonable relief angle, reduce milling cutter and the contact of machined surface, reduce the heat that the friction produced, also reduce heat transfer, avoid appearing milling cutter wearing and tearing aggravation and the too high problem of milling cutter temperature.

In some embodiments, as illustrated in fig. 2, it is also possible to provide the circumferential edge 3 with several clearance angles 5.

This embodiment can increase the space of dodging of milling cutter through setting up clear back relief angle 5 of a plurality of, makes the reasonable dodge machined surface of milling cutter, avoids interfering, and then, further keeps milling cutter's rigidity.

Specifically, in some embodiments where back clearance angle 5 is provided, the number of back clearance angles 5 may be 13.

This embodiment is through setting up clear back clearance 5 as many as 13 to, 13 clear back clearance 5 arrange along milling cutter's circumferencial direction, and the abundant effect of dodging that plays can avoid circumference sword 3 to set up too big relief angle again, avoids circumference sword 3 intensity not enough.

In some embodiments it is also possible to provide that the cutting portion further comprises end teeth 4, said end teeth 4 being provided with a-23 ° rake angle.

The cutting part comprises end teeth 4, thereby enabling the milling cutter to have the function of end milling; at the same time, the end teeth 4 are provided with a negative rake angle of-23 ° which increases the impact resistance of the end teeth 4.

In some preferred embodiments where the end tooth 4 is provided, the end tooth 4 may be provided with a 12 ° relief angle.

In the embodiment of setting up end tooth 4, through setting up reasonable and back angle slightly little, can increase end tooth 4's volume, increase end tooth 4's thickness and intensity, and then, improve whole milling cutter's intensity and life-span.

To further optimize the embodiment of the end tooth 4, it is possible to provide the end tooth 4 with a 20 ° back angle face connected to a 12 ° back angle face, the total width of the back angle face of the end tooth 4 being 0.1 mm.

After optimization, the embodiment sets the large-angle 20-degree back angle, and simultaneously limits the total width of the back angle surface, so that the contact area between the end tooth 4 and the machined surface is reduced as much as possible, the abrasion is reduced, and the heat is reduced.

In some preferred embodiments where the end teeth 4 are provided, the blade inclination of the end teeth 4 may be made 3 °.

The embodiment sets a large blade inclination angle, so that scraps can be conveniently discharged, the vibration and the impact of a blade tip are reduced, and the surface quality of machining is ensured.

The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other into a new embodiment. The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. The utility model provides a single-edge milling cutter for processing plastic material, characterized in that, include cutter arbor (1), set up in the cutting part of cutter arbor (1) one end, the cutting part is including connecting transition awl (2), the connection of cutter arbor (1) transition awl (2) are kept away from the sword core of cutter arbor (1) one end, set up in single circumference sword (3) of the surface of sword core, the sword core diameter is 0.15 millimeter, circumference sword (3) are the levogyration and set up, the helix angle of circumference sword (3) is 23 °, the external diameter of circumference sword (3) is 1.2 millimeters.

2. Single-edge milling cutter for machining plastic material according to claim 1, characterized in that the circumferential edge (3) is provided with a rake angle of 24 °.

3. A single-edge milling cutter for processing plastic material according to claim 2, characterized in that the circumferential edge (3) is provided with a relief angle of 14 °, the relief angle width of the circumferential edge (3) being 0.1 to 0.12 mm.

4. Single-edge milling cutter for processing plastic material according to claim 1, characterized in that the circumferential edge (3) is provided with a number of clearance angles (5).

5. Single-edge milling cutter for machining plastic material according to claim 4, characterized in that the number of clearance angles (5) is 13.

6. A single-edge milling cutter for machining plastic material according to claim 1, characterized in that the cutting portion further comprises end teeth (4), the end teeth (4) being provided with a-23 ° rake angle.

7. Single-edge milling cutter for machining plastic material according to claim 6, characterised in that the end tooth (4) is provided with a 12 ° clearance angle.

8. Single-edge milling cutter for machining plastic material according to claim 7, characterised in that the end tooth (4) is provided with a 20 ° back angle face connecting 12 ° back angle faces, the total width of the back angle faces of the end tooth (4) being 0.1 mm.

9. A single-edge milling cutter for machining plastic materials according to claim 6, characterized in that the edge inclination of the end tooth (4) is 3 °.

10. A single-edge milling cutter for processing plastic material according to claim 1, wherein the milling cutter has a length of 50 mm, the core has a length of 5 mm, and the circumferential edge (3) has a length of 4 mm in the axial direction of the core.