CN114535674A

CN114535674A - C-shaped groove machining method

Info

Publication number: CN114535674A
Application number: CN202111567184.6A
Authority: CN
Inventors: 韩双能; 曹中峰; 李海峰; 陈成; 李鹏; 任奕成
Original assignee: Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Current assignee: Anhui Ningguo Zhongding Mould Manufacture Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-27

Abstract

The invention discloses a C-shaped groove processing method, which comprises the following steps: s10: roughly milling the C-shaped groove; s20: constructing a reference surface; s30: selecting a milling cutter according to the radius of the groove; s40: and (3) performing finish machining on the roughly milled C-shaped groove in a multi-cutter layer cutting mode by taking the reference surface as a reference. The C-shaped groove machining method provided by the invention has the advantages that the machining precision of the die is improved, the consistency of the die cavity is ensured, the machining efficiency of the numerical control machine tool is improved, the cost is reduced, the machining efficiency can be improved by 60% by comparison with the method, and the machining quality is improved.

Description

C-shaped groove machining method

Technical Field

The invention relates to the technical field of rubber mold processing, in particular to a C-shaped groove processing method.

Background

The precision requirement of the rubber mold is high due to the fact that the working environment of the rubber mold determines, and therefore the dimensional precision and the roughness of each cavity need to be guaranteed when the rubber mold is developed. However, in the state of the rubber edge tearing mold, the edge tearing groove is a common characteristic, and the semicircular edge tearing groove is visible everywhere in the horizontal mold splitting state, but because the characteristic is relatively small, as shown in fig. 1, the C-shaped groove is generally in the states of R0.5, R1 and R1.5, so that the processing is always a relatively troubling problem, generally equal-height processing is generally low in efficiency, and secondly, the final processing is not in place, so that the edge tearing is difficult, and the subsequent efficiency is low and the cost is high.

Disclosure of Invention

In order to solve the technical problems in the background art, the invention provides a C-shaped groove machining method.

The invention provides a C-shaped groove processing method, which comprises the following steps:

s10: roughly milling the C-shaped groove;

s20: constructing a reference surface, wherein the reference surface passes through the center of the C-shaped groove and is aligned with the center of a cutter for a cutting line of a subsequent processing technology;

s30: selecting a milling cutter according to the radius of the groove;

s40: and (3) performing finish machining on the roughly milled C-shaped groove in a multi-cutter layer cutting mode by taking the reference surface as a reference.

Specifically, the reference plane constructed in S20Is thatThe reference surface covers the center of the C-shaped groove and passes through the center of the C-shaped groove when viewed in a cross sectional view;

specifically, the radius of the milling cutter selected in S30 is the same as the radius of the C groove, that is, the R0.5 milling cutter is selected for the C-shaped edge tearing groove of R0.5, the R1.0 milling cutter is selected for the R1.0 edge tearing groove, and the R1.5 milling cutter is selected for the R1.5 edge tearing groove.

Preferably, the multi-blade layer cutting has the same layer cutting thickness, each blade layer cutting thickness can be 0.01mm-0.3mm, the application only provides a numerical range, and certainly, in order to be suitable for cutting different chamfers, a person skilled in the art can correspondingly enlarge or reduce the layer cutting thickness, and the layer cutting thickness can be more than 0.3mm or less than 0.01 mm.

Since the application is directed to the C-shaped grooves of R0.5, R1.0, and R1.5, in some embodiments, each layer of the cutting blade cuts 0.1mm, that is, the C-shaped edge tearing groove of R0.5 is cut by 5 serial numbers, and the offset increment is 0.1 mm; the C-shaped tearing groove of R1.5 is cut by 15 serial numbers, and the offset increment is 0.1 mm; the C-shaped tearing groove of R1.0 is cut by 10 serial numbers, and the offset increment is 0.1 mm.

Specifically, in the present invention, when the cutting definition is adjusted, the cutting is defined as a cutting line mode, the linear mode is an open end, the line at the center of the cutting curved surface selected from the edge is added to the cutting line, and then the cutting line is determined, and then the addition of the cutting line is repeated.

The milling cutter in the method can be an R0.5, R1 or R1.5 standard cutter, and secondary customization is not needed. The method is characterized in that the method is completely consistent with a standard cutter, but the requirement on the strength of the cutter is high in a mode of machining the cutter in place, and the cutter is completely cut by one cutter to cause elastic deformation and generate displacement, so that a multi-cutter layer cutting mode is adopted from the process angle, but the method is not equal to equal-height machining, and finally cradle type (also called pendulum type) layer cutting is used as a programming process.

The linear velocity of the processing of the method can reach 5000mm/min, which is greatly improved compared with the original 1200 mm/min.

The C-shaped groove machining method provided by the invention has the advantages that the machining precision of the die is improved, the consistency of the die cavity is ensured, the machining efficiency of the numerical control machine tool is improved, the cost is reduced, the machining efficiency can be improved by 60% by comparison with the method, and the machining quality is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a C-shaped groove in the conventional mold.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only 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 considered 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

A C-shaped groove processing method, as shown in fig. 1, the radius of the C-shaped groove in this embodiment is 1.5mm, and the method includes the following steps:

s10: roughly milling the C-shaped groove;

s20: constructing a reference surface, wherein the reference surface passes through the center of the C-shaped groove, and setting the reference surface as follows for aligning a cutting line of a subsequent processing technology with the center of a cutter: specifically, the milling curved surface is cut into halves, and one half of the cut is required to pass through the center of an R angle (R is the radius of a C-shaped groove), so that the effect can be achieved after a cutting line of a subsequent machining process is aligned with the center of a cutter;

s30: newly establishing a new processing strategy, namely face milling, selecting names, cutters and curved surfaces, and defining cutting, wherein the step is the same as the original setting method, the milling cutters are selected according to the radius of the grooves, and the milling cutters of R1.5 are selected according to the edge tearing grooves of R1.5;

specifically, a cutting line mode is defined, and a linear mode is an open end. Adding a cutting line: selecting a line of the center edge of the cut curved surface from the edge, confirming the line and then repeatedly adding the line for one time;

s40: setting cutting parameters, cutting by adopting a multi-cutter layer cutting mode, taking a reference surface as a reference, cutting by 0.1mm in each cutter layer, further setting the offset increment to be 0.1mm, cutting by 15 serial numbers, and setting other parameters according to normal parameters.

Preferably, the multi-blade slicing thickness is the same, and the slicing thickness of each blade can be 0.01mm-0.3mm, and this application only provides a range of values, and certainly, in order to be suitable for the cutting of different chamfers, the skilled person can correspondingly enlarge or reduce the slicing thickness, and the slicing thickness can be greater than 0.3mm or less than 0.01 mm.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. A C-shaped groove machining method is characterized by comprising the following steps:

s10: roughly milling the C-shaped groove;

s20: constructing a reference surface;

s30: selecting a milling cutter according to the radius of the groove;

s40: and (3) performing finish machining on the roughly milled C-shaped groove in a multi-cutter layer cutting mode by taking the reference surface as a reference surface.

2. The method of claim 1 wherein the reference surface of step 20 passes through the center of the C-shaped groove.

3. The method as claimed in claim 1, wherein the radius of the milling cutter selected in S30 is the same as the radius of the C-groove.

4. The C-groove machining method as claimed in claim 1, wherein the thickness of each layer cut in S40 is the same.

5. A C-groove machining method as claimed in claim 4, characterized in that the slice thickness of each knife is 0.01mm-0.3 mm.

6. A C-shaped groove processing method according to claim 5, characterized in that the slice thickness of each knife is 0.1 mm.