CN209223251U - Oil channel forming knife and CNC milling machine - Google Patents

Abstract

The utility model relates to a shaping milling cutter technical field particularly, relate to an oil duct shaping sword and include numerical control milling machine of this oil duct shaping sword, including banding stalk portion and the cutting portion of connection on the outer terminal surface of stalk portion, the cutting portion includes cutting piece and the backing sheet of connection at the stalk portion respectively, and the cutting piece has relative first end and second end, and first end is connected at the outer terminal surface of stalk portion, and the second end extends towards the direction of keeping away from the stalk portion, and the cutting piece has a cutting edge at the second end; the supporting sheet is arranged on one side of the cutting sheet and is used for supporting the cutting sheet; the cutting blade is a polycrystalline diamond cutting blade, and the supporting sheet is a tungsten steel supporting sheet; through rationally setting up the cutter structure and changing the cutter material, bear polycrystalline diamond cutter body through adopting the tungsten steel cutter body promptly, guaranteed the structural stability in the cutting piece course of working on the one hand, on the other hand, the cutting piece smooth finish is high, is applicable to the finish machining of automobile engine oil duct, and the high-usage.

Description

Oil channel forming knife and CNC milling machine

technical field

The utility model relates to the technical field of forming milling cutters, in particular to an oil passage forming cutter and a numerical control milling machine including the oil passage forming cutter.

Background technique

CNC milling machine is one of the most widely used CNC machine tools at present; when processing the internal oil passage of automobile engine, it often has high requirements on the finish of the tool. However, in the actual machining process, most of the carbide tools are used. The cutter body is made of hard alloy. Although it has the advantages of good rigidity, no deformation during cutting, and strong cutting force, it also has disadvantages such as poor wear resistance, low cutting finish, short service life, and high production cost, which is not conducive to automobiles. Finishing of the internal oil passages of the engine.

Utility model content

The purpose of the utility model is to provide a kind of oil channel forming knife and numerical control milling machine, aiming at solving the problem of poor precision and unsatisfactory processing quality when using it to process the internal oil channel of the automobile engine due to the poor finish of the cemented carbide tool in the prior art technical issues.

For reaching this purpose, the technical scheme that the utility model adopts is:

Provided is an oil channel forming knife, comprising a strip-shaped shank and a cutting portion connected to the outer end surface of the shank, the cutting portion includes a cutting piece and a supporting piece respectively connected to the shank, the cutting The blade has opposite first and second ends, the first end is connected to the outer end surface of the shank, the second end extends away from the shank, and the cutting blade is connected to the second end. Two ends have a cutting edge; the support piece is arranged on one side of the cutting piece and is used to support the cutting piece; the cutting piece is a polycrystalline diamond cutting piece, and the support piece is a tungsten steel support piece.

Further, the supporting sheet includes a plurality of supporting pieces, which are stacked in sequence and parallel to the cutting piece, and one end of the supporting pieces is connected to the outer end surface of the handle, The other end extends away from the handle.

Further, the extension lengths of the plurality of support pieces decrease gradually from the cutting piece toward a direction away from the cutting piece.

Further, the outer end surfaces of the plurality of support pieces are all parallel to and close to the cutting piece, face away from the cutting piece, and extend obliquely toward the first end.

Further, the cutting piece has a main cutting surface facing away from the support piece, and the main cutting surface intersects with the outer end surface of the second end to form the cutting edge.

Further, the outer surface of the second end of the cutting piece extends obliquely from the main cutting surface to the supporting piece and toward the first end.

Further, the shank includes a clamping part, a cylindrical connecting part connected with the cutting part, and a hollow part connected between the clamping part and the connecting part, and the hollow The head is round.

Further, the clamping portion is cylindrical.

Further, a first plane and a second plane for clamping are formed on the clamping portion, and the first plane is opposite to the second plane.

The beneficial effect of the oil passage forming knife provided by the utility model is that: compared with the prior art, the oil passage forming knife proposed by the utility model includes a handle and a cutting part, and the cutting part is connected to the outer end surface of the handle for cutting The part includes the cutting piece and the support piece used to support the cutting piece. The cutting piece is a polycrystalline diamond cutting piece, and the support piece is a tungsten steel support piece. Polycrystalline diamond (PCD, Polycrystalline diamond) cutter body, on the one hand, ensures the structural stability of the cutting blade during processing; Simple and easy to process, low manufacturing cost.

The beneficial effect of the numerically controlled milling machine provided by the utility model is that: compared with the prior art, a kind of numerically controlled milling machine proposed by the utility model includes the above-mentioned oil passage forming knife, and the numerically controlled milling machine can control the forming knife on the automobile through a preset program. The engine oil passage is finished, with high processing quality, long tool life and high production efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is a three-dimensional schematic view of an oil passage forming knife provided by an embodiment of the present invention;

Fig. 2 is a schematic front view of the oil passage forming knife provided by the embodiment of the present invention;

Fig. 3 is a schematic top view of the oil passage forming knife provided by the embodiment of the present invention;

Fig. 4 is a schematic bottom view of the oil channel forming knife provided by the embodiment of the present invention.

Wherein, each reference sign in the figure:

1: Shank 11: Clamping part

12: Connecting part 13: Avoidance part

2: Cutting part 21: Cutting piece

22: Support piece 21a: First end

21b: second end 211: cutting edge

221: support piece 212: main cutting surface

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. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

As shown in Fig. 1 to Fig. 4, it is a preferred embodiment provided by the utility model.

The oil channel forming knife provided in this embodiment is mainly used for processing the internal oil channel of the automobile engine. The wall of the oil channel is preferably made of aluminum. Of course, it can also be used for processing structures similar to the internal oil channel of the automobile engine. There is no unique limitation here. The forming knife includes a strip-shaped shank 1 and a cutting portion 2 connected to the outer end surface of the shank 1, the cutting portion 2 includes a cutting piece 21 and a support piece 22 connected to the shank 1 respectively, and the cutting piece 21 has an opposite second One end 21a and the second end 21b, the first end 21a is connected to the outer end surface of the handle 1, preferably, as shown in Figure 2, the first end 21a is located in the middle of the outer end surface of the handle 1, in addition, the second end 21b extends away from the handle 1, preferably, the second end 21b extends along the extension direction of the handle 1, and the cutting piece 21 has a cutting edge 211 (main cutting part) at the second end 21b; the supporting piece 22 is located at One side of the cutting piece 21 is used to support the cutting piece 21. Specifically, the supporting piece 22 can be connected between the cutting piece 21 and the shank 1 by brazing. Of course, the supporting piece 22 can also be connected by other conventional methods, such as bonding The detachable connection methods such as jointing or riveting are not specifically limited here; the cutting piece 21 is a polycrystalline diamond cutting piece 21, and the supporting piece 22 is a tungsten steel supporting piece 22; by reasonably setting the tool structure and changing the tool material, that is, through The tungsten steel cutter body is used to carry the polycrystalline diamond cutter body. On the one hand, it ensures the structural stability of the cutting piece 21 during processing. On the other hand, the cutting piece 21 has a high finish, which is suitable for finishing the oil passage of the automobile engine and has a high utilization rate. , the structure is simple and easy to process, and the manufacturing cost is low.

In one embodiment of the present utility model, please refer to FIG. 2 , as a further optimization, the support piece 22 includes a plurality of support pieces 221, and the plurality of support pieces 221 are stacked in sequence and are all parallel to the cutting piece 21. One end of the piece 221 is connected to the outer end surface of the handle 1, and the other end extends away from the handle 1; further, please refer to FIG. 2 and FIG. The direction away from the cutting piece 21 decreases; further, please continue to refer to FIG. 4 , the outer end surfaces of the plurality of supporting pieces 221 are all parallel and close to the cutting piece 21, facing away from the cutting piece 21 and extending obliquely toward the first end 21a The structure of the support piece 22 can be integrally formed, or a plurality of support pieces 221 can be processed separately and then stacked, and the plurality of support pieces 221 can be connected by welding or bonding. The structure of the support piece 22 is simple and easy to process, and By setting the outer end surfaces of the plurality of support pieces 221 as slopes, it is convenient to sharpen the cutting pieces 21, saving materials and low cost.

In one embodiment of the present utility model, please refer to Fig. 1, as a further optimization, the cutting piece 21 has a main cutting surface 212 away from the support piece 22, the main cutting surface 212 intersects with the outer end surface of the second end 21b to form a cutting edge 211, the main cutting surface 212 can be parallel to the extension direction of the shank 1, and can also form a tool rake angle (not shown in the figure) with the extension direction of the shank 1, the rake angle can be between 5 degrees and 10 degrees, preferably 5 degrees ±0.3 degrees.

In one embodiment of the present utility model, please refer to FIG. 4 , as a further optimization, the outer end surface of the second end 21b of the cutting piece 21 extends obliquely from the main cutting surface 212 to the support piece 22 and toward the first end 21a, specifically A relief angle (not shown) is formed between the outer end surface of the second end 21b and a base surface, the base surface is perpendicular to the extension direction of the handle 1, and the relief angle is between 5° and 10°. Preferably, the relief angle It is 5±0.3 degrees. By changing the size of the rake angle and the rear angle, the durability of the tool is increased.

In one embodiment of the present utility model, please refer to Fig. 1 to Fig. 4 together, as a further optimization, the handle 1 includes a clamping part 11, a cylindrical connecting part 12 connected with the cutting part 2 and a connecting The void portion 13 between the clamping portion 11 and the connecting portion 12 is in the shape of a truncated cone. The structure of the shank portion 1 is simple and easy to process, which is convenient for milling chip removal and sharpening of the cutting edge 211 .

In one embodiment of the present utility model, please refer to Fig. 2, the clamping part 11 is cylindrical, and the structure is simple and easy to process; in another embodiment of the present utility model, as a further optimization, the clamping part 11 can be A first plane (not shown) and a second plane (not shown) for clamping are formed, and the first plane and the second plane are arranged opposite to each other; further, the first plane and the second plane are parallel to each other, preventing the handle from 1 rotates after clamping, which ensures the stability of the position of the cutting edge 211 during the milling process, ensures the machining accuracy of the product, slows down the wear of the cutting part 2, and increases the service life of the tool.

A numerically controlled milling machine proposed by the utility model includes the above-mentioned oil passage forming knife. The numerically controlled milling machine can control the forming knife to finish machining the automobile engine oil passage through a preset program. The machining quality is high, and the service life of the knife is long. efficient.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. The oil channel forming knife is characterized in that it comprises a strip-shaped shank and a cutting portion connected to the outer end surface of the shank, and the cutting portion includes a cutting piece and a support piece respectively connected to the shank, The cutting piece has an opposite first end and a second end, the first end is connected to the outer end surface of the shank, the second end extends away from the shank, and the cutting piece is The second end has a cutting edge; the support piece is arranged on one side of the cutting piece and is used to support the cutting piece; the cutting piece is a polycrystalline diamond cutting piece, and the support piece is made of tungsten steel support sheet. 2. The oil passage forming knife according to claim 1, wherein the supporting sheet includes a plurality of supporting sheets, and the plurality of supporting sheets are stacked in sequence and are all parallel to the cutting sheet, and the plurality of supporting sheets are arranged parallel to the cutting sheet. One end of the supporting piece is connected to the outer end surface of the handle, and the other end extends away from the handle. 3 . The oil passage forming cutter according to claim 2 , wherein the extension lengths of the plurality of support pieces decrease gradually from the cutting piece toward a direction away from the cutting piece. 4 . 4. The oil passage molding tool according to claim 3, wherein the outer end surfaces of the plurality of support pieces are parallel to and close to the cutting piece, facing away from the direction of the cutting piece and facing toward the first One end extends obliquely. 5. The oil passage forming cutter according to any one of claims 1-4, characterized in that, the cutting piece has a main cutting surface away from the support piece, and the main cutting surface is connected to the second end The outer end faces intersect to form the cutting edge. 6 . The oil passage forming cutter according to claim 5 , wherein the outer end surface of the second end of the cutting piece extends obliquely from the main cutting surface to the support piece and toward the first end. 7 . 7. The oil passage forming knife according to claim 5, wherein the shank comprises a clamping portion, a cylindrical connecting portion connected to the cutting portion, and a connecting portion connected between the clamping portion and the cutting portion. The space between the connection parts is in the shape of a truncated cone. 8 . The oil passage forming knife according to claim 7 , wherein the clamping portion is cylindrical. 9. The oil channel forming knife according to claim 7, wherein a first plane and a second plane for clamping are formed on the clamping portion, the first plane is opposite to the second plane set up. 10. A numerical control milling machine, characterized in that it comprises the oil passage forming knife according to any one of claims 1-9.