CN107812967A - a chamfering knife - Google Patents

Abstract

The invention discloses a chamfer cutter which comprises a cutter body, a cutter head arranged on the cutter body and a neck part positioned between the cutter body and the cutter head; the cutter head is provided with four cutting parts, and the four cutting parts have the same structural characteristics; the cutting portion has a first cutting face, a second cutting face and a third cutting face; the first cutting surface and the third cutting surface are inclined planes, the first cutting surface and the third cutting surface are respectively intersected at the second cutting surface, and the section of the cutting part is trapezoidal; the neck is equipped with the chip groove, the chip groove passes the top of tool bit and cutter body, chip groove bottom have the radian, have increased chip removal area. The novel multifunctional electric heating cooker has the advantages of simple structure, compact matching, convenience in use, reasonable design and elegant appearance; therefore, the product has excellent technical and economic performance.

Description

a chamfering knife

【Technical field】

The invention mainly relates to a chamfering knife.

【Background technique】

With the improvement of people's living standards, portable electronic devices such as mobile phones have become more and more popular. The appearance of different brands and different models of mobile phones is basically inconsistent, so the size of the mobile phone case is also different. In order to match the slotting process of the mobile phone case , we have developed a new cutting tool.

【Content of invention】

In order to solve the above problems, the present invention proposes a chamfering knife.

The chamfering knife adopts the following technical solutions:

A chamfering knife, which includes a knife body, a knife head arranged on the knife body, and a neck between the knife body and the knife head;

The cutter head has four cutting parts, and the four cutting parts have the same structural features; the cutting part has a first cutting surface, a second cutting surface and a third cutting surface; the first cutting surface and the third cutting surface The surface is an inclined plane, the first cutting surface and the third cutting surface respectively intersect with the second cutting surface, and the section of the cutting part is trapezoidal;

The neck is provided with a chip removal groove, the chip removal groove passes through the top of the cutter head and the cutter body, and the bottom of the chip removal groove has a radian, which increases the chip removal area.

Preferably, the cutting portion protrudes from the neck.

Preferably, the depth of the cutting portion is 3.5mm.

Preferably, the radial depth of the first cutting surface is 1.75mm.

Preferably, the radial depth of the third cutting surface is 0.75 mm.

Preferably, the radial depth of the second cutting surface is 1mm.

The beneficial effect that the present invention produces compared with background technology:

The present invention adopts the above-mentioned technical scheme, which can cut out a mobile phone case of a specific standard according to the size of the cutting tool, which is fast in processing, saves materials, and avoids multiple tool setting; it has the advantages of compact fit, convenient use, reasonable design, and elegant appearance; therefore, It is a product with superior performance both technically and economically.

【Description of drawings】

Fig. 1 is the schematic diagram of the chamfering knife in the preferred embodiment provided by the present invention;

Fig. 2 is the top view of the chamfering knife in the preferred embodiment provided by the present invention;

Fig. 3 is a cross-sectional view of the cutting part in the preferred embodiment of the present invention.

【Detailed ways】

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that for orientation words, such as the term "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width ", "Thickness", "Top", "Down", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner" , "Outside", "Clockwise", "Counterclockwise", etc. indicating orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

In addition, terms such as "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Therefore, the definition of "first" and "second" features may explicitly or implicitly include one or more of these features. In the description of the present invention, "several" means two or more, unless otherwise stated. There are clear and specific limitations.

In the present invention, unless otherwise clearly specified and limited, if there are terms "assembled", "connected" and "connected", the terms should be interpreted in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral ground connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediary, or two components can be connected internally. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the invention, unless otherwise specified and limited, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, or that the first and second features are not in direct contact. contact but through another feature contact between them. Moreover, "above", "below" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature the height of. "Above", "under" and "beneath" the first feature on the second feature include that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

The technical solutions and beneficial effects of the present invention will be clearer and more definite by further describing the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification below. The embodiments described below by referring to the figures are exemplary for the purpose of explaining the present invention and should not be construed as limiting the present invention.

The preferred embodiment provided by the present invention: as shown in Figures 1 to 3, a chamfering knife includes a knife body 10, a knife head 20 arranged on the knife body, and a knife head 20 between the knife body 10 and the knife head 20. neck 30;

The cutter head 20 has four cutting parts 21, the depth of the cutting parts 21 is 3.5mm, and the four cutting parts 21 all have the same structural features; the cutting parts 21 protrude from the neck 30 so as to cut the workpiece , the neck can make the workpiece avoid machining, and reserve the required size; the cutting part 21 has a first cutting surface 22, a second cutting surface 23 and a third cutting surface 24; the first cutting surface 22 and the third cutting surface 24 It is an inclined plane, the first cutting surface 22 and the third cutting surface 24 intersect 23 at the second cutting surface respectively, and the cross-sections of the first cutting surface 22, the second cutting surface 23 and the third cutting surface 24 are trapezoidal;

The neck 30 is provided with a chip removal groove 31 , the chip removal groove 31 passes through the top of the cutter head 20 and the cutter body 10 , and the chip removal groove 31 is curved and disposed on the neck 30 . The radial depth of the first cutting surface 22 is 1.75 mm, the radial depth of the third cutting surface 24 is 0.75 mm, and the radial depth of the second cutting surface 23 is 1 mm.

In the description of the specification, descriptions referring to terms such as "one embodiment", "preferably", "example", "specific examples" or "some examples" mean specific features, structures, Materials or features are included in at least one embodiment or example of the present invention, and schematic representations of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Through the description of the above structure and principle, those skilled in the art should understand that the present invention is not limited to the above-mentioned specific embodiments, and that improvements and substitutions using known technologies in the art on the basis of the present invention all fall under the protection of the present invention. The scope should be defined by the claims.

Claims (6)

1. A kind of 1. rose reamer, it is characterised in that：It includes cutter hub, the cutter head on cutter hub, between cutter hub and cutter head Neck；

   The cutter head has three cutting portions, and three cutting portions are respectively provided with identical architectural feature；The cutting portion has the One cutting face, the second cutting face and the 3rd cutting face；First cutting face and the 3rd cutting face be clinoplain, the first cutting face and 3rd cutting face is intersected respectively at the second cutting face, and the section of cutting portion is trapezoidal；

   The neck is provided with chip area, and the chip area has radian through the top of the cutter head and cutter hub, chip removal trench bottom, Increase chip removal area.
2. 2. rose reamer according to claim 1, it is characterised in that：The cutting portion protrudes from neck.
3. 3. T-shaped forming cutter according to claim 1, it is characterised in that：The cutting portion depth is 3.5mm.
4. 4. T-shaped forming cutter according to claim 1, it is characterised in that：First cutting face radial depth is 1.75mm.
5. 5. T-shaped forming cutter according to claim 1, it is characterised in that：3rd cutting face radial depth is 0.75mm.
6. 6. T-shaped forming cutter according to claim 1, it is characterised in that：Second cutting face radial depth is 1mm.