CN111958030A - Cutter for metal cutting of numerical control machine tool - Google Patents
Cutter for metal cutting of numerical control machine tool Download PDFInfo
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- CN111958030A CN111958030A CN202010960306.7A CN202010960306A CN111958030A CN 111958030 A CN111958030 A CN 111958030A CN 202010960306 A CN202010960306 A CN 202010960306A CN 111958030 A CN111958030 A CN 111958030A
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- cutter
- cutting
- cutting edge
- control machine
- tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
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- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a cutter for metal cutting of a numerical control machine tool, and relates to the technical field of cutting cutters. According to the invention, the length of the cutting edge part is shortened, the extrusion of chips to the cutting edge part is reduced, and the cutting edge part is effectively protected, so that the service life of the cutter is prolonged, the durability of the cutter can be improved through the design of a fillet, meanwhile, the service life of the cutter is prolonged by adopting a hard alloy material, the machining efficiency is improved, the service life of the cutter can be greatly prolonged through the improvement of the three points, the replacement times of the cutter is reduced, the cutting cost is reduced, and the cutting efficiency is improved.
Description
Technical Field
The invention relates to the technical field of cutting tools, in particular to a tool for metal cutting of a numerical control machine tool.
Background
For the small-size slot with narrow and deep stainless steel, a high-speed steel end mill or a Japanese high-speed steel milling cutter for mouth drilling is adopted at present, the stainless steel is not easy to process, the plane processing is also feasible, but the efficiency is low due to the fact that the cutter is not wear-resistant when the stainless steel touches the small (narrow) slot, and the defects of difficult processing, low efficiency, great cutter loss and the like exist. In the prior art, the cutting edge of the cutter head part of the cutter is long, the upper cutting edge does not participate in cutting during groove milling, the upper cutting edge is easily damaged due to extrusion of chips, even the chips crush the cutting edge on the upper part of the cutting edge to cause edge breakage, and the upper cutting edge is downwards conducted to the cutting edge to cause cutter scrapping, and meanwhile, the cutter head part can be damaged due to extrusion of a cutter material, for example, under the condition that the depth of the cutter is 0.5mm, only about 80m cutter distance can be machined, the cutter needs to be replaced, frequent cutter replacement is carried out, the machining efficiency is low due to frequent cutter setting, the machining cost is increased, and the risk of scrapping.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a cutter for metal cutting of a numerical control machine tool, which can improve the protection effect on the cutting edge part of the cutter when in use, thereby prolonging the service life of the cutter.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a digit control machine tool cutter for metal cutting process, includes handle of a knife portion, connecting portion and blade portion, and the connecting portion front end links to each other with the handle of a knife portion, and the end at connecting portion is connected to blade portion, and the fillet has been seted up on blade portion top. The purpose is to improve the durability of the blade part.
Preferably, the length of the cutting edge part is shortened to 2-3mm, the upper cutting edge of the common cutter is changed into a cylindrical shape, the diameter is reduced, the chip containing rate is increased, chips are easy to discharge, and the cutting edge part of the cutter is protected;
preferably, the cutting edge part is made of hard alloy materials, and the surface of the cutting edge part is provided with a titanium plating layer so as to improve the durability of the cutting edge part.
Preferably, the diameter of the connecting part is 5-15mm, and the diameter of the blade part is 6-16 mm.
Preferably, the size of the rounded corners is 0.75-1 mm.
Preferably, the tool shank part and the connecting part are made of hard alloy materials, so that the durability of the whole tool is improved.
Preferably, the surface of the connecting part is provided with a titanium plating layer, so that the durability of the whole cutter is further improved.
Preferably, the connection portion is provided with 3-4 helical grooves.
The invention has the beneficial effects that:
1. according to the invention, the cutting edge part of the existing cutter in the shape of the cutter point is changed into the round angle, and the durability of the cutter can be obviously increased through the design of the round angle, so that the cutter is more wear-resistant. The whole material is changed into a hard alloy material, and a titanium plating layer is added on the edge part, so that the durability of the cutter is improved, the cutter changing and aligning time is reduced, and the production efficiency is improved. On the other hand, the cutting edge part is shortened to 2-3mm, so that the chip containing rate can be increased, chips can be easily removed, the edge part of the knife is protected, and the knife edge is prevented from being broken due to accumulation and breakage. Through the improvement of above-mentioned structure, can show the incorruptibility that increases cutting edge portion, the cutting edge portion of fine protection cutter will prolong the life of cutter so greatly, reduce the number of times of changing the cutter, improve the efficiency of opening narrow dark small-size groove processing to the stainless steel, reduce the processing cost.
2. The connecting part is provided with the spiral groove, so that when a groove is milled, the shortened cutting edge part can reduce extrusion damage caused by accumulation of chips in the cutting edge part, the chip containing rate is increased, chips are easy to discharge, meanwhile, a part of chips can be discharged through the spiral groove of the connecting part, normal cutting is guaranteed when the chips are machined in the deep part of the groove, the protection effect on the cutting edge part of the cutter is improved, the service life of the cutter is prolonged, the longest cutting distance can reach 526m during use, the service life of the cutter is greatly prolonged, the time between cutter replacement and cutter setting is reduced, and the machining efficiency is improved.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a cutting tool for metal cutting of a numerical control machine tool provided by the invention.
Reference numerals:
1-handle part, 2-connecting part, 2.1-spiral groove, 3-cutting edge part and 3.1-fillet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
Stainless steel is difficult to process, the plane can be processed, but the stainless steel is very painful when touching a small (narrow) groove, and the efficiency is low because a cutter is not wear-resistant; when the groove is milled, the upper cutting edge does not participate in cutting, and the cut of the group is cut on the cutting edge so as to damage the upper cutting edge and even break the cutter by extruding the cutting edge to cause cutter scrapping.
Aiming at the problems in the prior art, the invention is mainly improved as follows:
the cutting edge part is changed into a round angle and is changed into a hard alloy material, and on the other hand, the cutting edge part is shortened. Therefore, the invention has the following advantages: 1. the arrangement of the round corners can increase the wear resistance; 2, the length of the knife edge part is shortened, the chip containing rate is increased, chips are easily removed, and the knife edge part is protected; 3, changing the material of the blade part from common high-speed steel or cobalt-containing high-speed steel into hard alloy material, and further increasing the durability of the cutter by utilizing the titanium coating technology, reducing the cutter changing alignment time and improving the production efficiency.
Example 1
As shown in fig. 1, the present embodiment provides a cutting tool for metal cutting of a numerical control machine, including a shank portion 1, a connecting portion 2 and a cutting edge portion 3, the front end of the connecting portion 2 is connected to the shank portion 1, 3 to 4 spiral grooves 2.1 are provided on the connecting portion 2, the front end of the cutting edge portion 3 is connected to the rear end of the connecting portion 2, the length of the cutting edge portion 3 is 2 to 3mm, the top end of the cutting edge portion 3 is provided with a fillet 3.1, the size of the fillet 3.1 is 0.75 to 1mm, the cutting edge portion 3 is made of a hard alloy material, the connecting portion 2 is also made of a hard alloy, a titanium plating layer is provided on the surface of the cutting edge portion 3, and a titanium plating.
Specifically, the shank portion 1, the connecting portion 2, and the cutting edge portion 3 are integrally connected.
Specifically, the diameter of the connecting part 2 is 5-15mm, the diameter of the cutting edge part 3 is 6-16mm, and the diameter of the cutting edge part 3 is larger than that of the connecting part 2, so that the cutting edge part 3 can be conveniently aligned with and contacted with a processing workpiece.
In the above embodiment, the cutting edge portion of the existing tool is shortened, the original cutting edge portion which does not participate in cutting is changed into the connecting portion 2, when a groove is milled by cutting, the shortened cutting edge portion 3 can reduce extrusion damage caused by accumulation of chips in the cutting edge portion 3, chip containing rate is increased, chips are easy to remove, meanwhile, a part of the chips can be discharged through the spiral groove 2.1 of the connecting portion 2, normal cutting is guaranteed when the chips are machined in the deep groove portion, the protection effect on the cutting edge portion 3 of the tool is improved, meanwhile, the tail end of the cutting edge portion is provided with the round corner, the material is changed into the hard alloy material, and the titanium-plated layer is arranged, so that the durability of the tool is improved, the service life of the tool is prolonged, the machining efficiency of small (narrow) grooves of stainless steel is improved, and the machining cost is reduced.
Compared with the traditional common high-speed steel cutter with a drill, the invention takes processing of SUS304 stainless steel as an example, three sealing grooves with the circumference of 12m and the depth of 15mm are arranged on the connecting plane, and the two cutters are compared:
(1) high speed steel cutter containing drill: the cutting depth is 0.5mm, the feeding speed is 0.5m/min, the total feed stroke is 720m, and therefore the total cutting time of the processing groove is as follows: 720 m/0.5 m/min 1440min (namely 24h), because of containing to bore high-speed steel sword normal life about 80m, need the tool changing about 9 in its processing, about 250 yuan each, tool setting needs about 1h each time, the tool changing and tool setting time has increased 8h, consequently ordinary containing to bore high-speed steel sword processing total man-hour is 24+8 32h, its processing unit price is 500 yuan/h, the cutter expense is: 250 x 9 (number of used tools) 2250 yuan, so the total machining cost is: 32 x 500+2250 is 18250 yuan.
(2) The cutter of the invention: the cutting depth is 0.5mm, the feeding speed is 0.75m/min, the total feed stroke is 720m, and therefore, the total cutting time of the processing groove is as follows: 720 m/0.75 m/min 960min (namely 16h), plus the total tool changing time is 16.5h, the service life of the invention is about 500m, the cutting stroke can not reach 1.5, the processing unit price is 500 yuan/h, each cutter is about 400 yuan, the cutter expense is: 400 x 1.5 (number of used tools) 600 yuan, so the total cost is: 16.5 × 500+600 ═ 8850 yuan.
From the above, it can be seen that, from an economic aspect, the present invention improves the productivity by about 45% according to the same processing conditions, and greatly reduces the labor intensity of workers and the risk of scrapping finished products.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. The utility model provides a digit control machine tool for metal cutting process cutter which characterized in that includes:
a shank portion;
the front end of the connecting part is connected with the tool shank part;
the front end of the cutting edge part is connected with the rear end of the connecting part, and the top end of the cutting edge part is provided with a round angle.
2. The cutting tool for metal cutting machining of a numerical control machine tool according to claim 1, characterized in that: the length of the cutting edge part is 2-3 mm.
3. The tool for metal cutting machining of a numerical control machine according to claim 1 or 2, characterized in that: the cutting edge part is made of hard alloy materials.
4. The cutting tool for metal cutting machining of a numerical control machine tool according to claim 3, characterized in that: the surface of the cutting edge part is provided with a titanium plating layer.
5. The tool for metal cutting machining of a numerical control machine according to claim 1 or 2, characterized in that: the diameter of the connecting part is 5-15mm, and the diameter of the blade part is 6-16 mm.
6. The cutting tool for metal cutting machining of a numerical control machine tool according to claim 1, characterized in that: the size of the fillet is 0.75-1 mm.
7. The cutting tool for metal cutting machining of a numerical control machine tool according to claim 3, characterized in that: the tool shank part and the connecting part are also made of hard alloy.
8. The tool for metal cutting machining of a numerical control machine tool according to claim 4, characterized in that: the surface of the connecting part is also provided with a titanium plating layer.
9. The cutting tool for metal cutting machining of a numerical control machine tool according to claim 1, characterized in that: the connecting part is provided with 3-4 spiral grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960306.7A CN111958030A (en) | 2020-09-14 | 2020-09-14 | Cutter for metal cutting of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960306.7A CN111958030A (en) | 2020-09-14 | 2020-09-14 | Cutter for metal cutting of numerical control machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN111958030A true CN111958030A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010960306.7A Pending CN111958030A (en) | 2020-09-14 | 2020-09-14 | Cutter for metal cutting of numerical control machine tool |
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| CN (1) | CN111958030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114375102A (en) * | 2022-02-10 | 2022-04-19 | 业成科技（成都）有限公司 | Method for manufacturing patterned circuit |
-
2020
- 2020-09-14 CN CN202010960306.7A patent/CN111958030A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114375102A (en) * | 2022-02-10 | 2022-04-19 | 业成科技（成都）有限公司 | Method for manufacturing patterned circuit |
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