CN214557494U - Cutting tool - Google Patents
Cutting tool Download PDFInfo
- Publication number
- CN214557494U CN214557494U CN202120513216.3U CN202120513216U CN214557494U CN 214557494 U CN214557494 U CN 214557494U CN 202120513216 U CN202120513216 U CN 202120513216U CN 214557494 U CN214557494 U CN 214557494U
- Authority
- CN
- China
- Prior art keywords
- tungsten steel
- tool
- cutting
- steel connecting
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Knives (AREA)
Abstract
The utility model discloses a cutter, which comprises a tungsten steel cutter body and a cutting edge; the cutting edge comprises a tungsten steel connecting part and a cutting part arranged on the tungsten steel connecting part, and the tungsten steel connecting part and the tungsten steel cutter body are fixed in a welding-wire-free welding mode. The utility model discloses among the technical scheme, the cutter includes tungsten steel cutter body and cutting edge, the cutting edge includes tungsten steel connecting portion and cutting part, the cutting part is used for processing the work piece, tungsten steel connecting portion are used for connecting cutting part and tungsten steel cutter body, it is fixed with the tungsten steel cutter body solderless butt fusion through tungsten steel connecting portion, realize tungsten steel and tungsten steel's the same kind of material butt fusion, tungsten steel connecting portion and tungsten steel cutter body connection structure's higher melting point has been guaranteed, thereby the high temperature resistance ability of cutter in making or the use has been improved, the cutter body that has prevented the cutter takes place with the off-going phenomenon of cutting edge, the reliability of cutter overall structure has further been improved.
Description
Technical Field
The utility model relates to a production and processing technology field, in particular to cutter.
Background
With the development of manufacturing industry, cutting tools have become indispensable machining tools for the machining industry.
In the related art, the handle and the tool bit of the processing tool are usually fixed by brazing, and the brazing is performed by melting a welding wire with a melting point lower than that of a material to be welded, and then closely attaching the welding wire to the material to be welded, so that the handle and the tool bit are fixedly connected. However, when the machining tool is used, high machining temperature is generated during high-speed operation and cutting or grinding of a workpiece, so that a weldment for connecting the shank and the tool bit is easily melted, and the tool bit of the machining tool is separated from the shank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cutter aims at improving the high temperature resistance of cutter, enlarges the adaptable temperature range of cutter in the use.
In order to achieve the purpose, the utility model provides a cutter, which comprises a tungsten steel cutter body and a cutting edge; the cutting edge comprises a tungsten steel connecting part and a cutting part arranged on the tungsten steel connecting part, and the tungsten steel connecting part is fixedly welded with the tungsten steel cutter body without welding wires.
In an embodiment of the present invention, the tungsten steel connecting portion is fixedly connected to the tungsten steel cutter body by laser welding.
In an embodiment of the present invention, the cutting portion is made of a superhard material.
In an embodiment of the invention, the cutting portion is a CBN material structure, a PCBN material structure or a PCD material structure.
In an embodiment of the present invention, the cutting portion and the tungsten steel connecting portion are an integral structure.
In an embodiment of the present invention, the cutting portion is fixed to the tungsten steel connecting portion by laser welding, and the melting point of the cutting portion is not lower than the melting point of the tungsten steel connecting portion.
In an embodiment of the present invention, the cutter is a milling cutter, a dental cutter, a drill, a lathe tool, a reamer, or a knife grinder.
In an embodiment of the present invention, the tungsten steel cutter body includes:
a knife handle; and
the tool bit, the tool bit is located the one end of handle of a knife, the tool bit orientation is kept away from the protruding installation department that is equipped with of direction of handle of a knife, tungsten steel connecting portion are located the installation department is followed one side of handle of a knife thickness direction, the cutting portion cover in tungsten steel connecting portion deviate from the surface of installation department.
In an embodiment of the present invention, the mounting portion includes a first side wall and a second side wall connecting opposite sides of the tool bit, and the first side wall and the second side wall are connected at an included angle at a side away from the tool bit to form a connecting arm;
from keeping away from one side of tungsten steel connecting portion to being close to one side of tungsten steel connecting portion, the linking arm orientation deviates from the direction of handle of a knife leans out the setting.
In an embodiment of the present invention, the tungsten steel connecting portion extends and protrudes along the edge portions of the first side wall and the second side wall; the cutting part covers the surface of the tungsten steel connecting part and is arranged in a protruding mode relative to the tungsten steel connecting part in the direction deviating from the tool handle.
The utility model discloses among the technical scheme, the cutter includes tungsten steel cutter body and cutting edge, the cutting edge includes tungsten steel connecting portion and cutting part, the cutting part is used for processing the work piece, tungsten steel connecting portion are used for connecting cutting part and tungsten steel cutter body, it is fixed with the tungsten steel cutter body solderless butt fusion through tungsten steel connecting portion, realize tungsten steel and tungsten steel's the same kind of material butt fusion, tungsten steel connecting portion and tungsten steel cutter body connection structure's higher melting point has been guaranteed, thereby the high temperature resistance ability of cutter in making or the use has been improved, the cutter body that has prevented the cutter takes place with the off-going phenomenon of cutting edge, the reliability of cutter overall structure has further been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of the cutting tool of the present invention;
fig. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
fig. 4 is another schematic structural diagram of the embodiment of the cutting tool of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Tungsten |
132 | |
| 110 | Knife |
133 | Connecting |
| 120 | |
200 | |
| 130 | |
210 | Tungsten |
| 131 | |
220 | Cutting part |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a cutter aims at solving among the current cutter body and cutting edge and leads to the technical problem that drops easily under higher temperature operational environment through the welding of brazing to improve the high temperature resistance of cutter, enlarge the adaptable temperature range of cutter when using. It should be noted that the present invention provides a cutting tool, which is not limited to a specific type of cutting tool, and can be applied to various different types of cutting tools, such as milling cutter, dental cutter, drill bit, turning tool, reamer or knife grinder, and the like, and the specific application is not limited thereto.
In the embodiment of the present invention, as shown in fig. 1 to 4, the tool includes a tungsten steel tool body 100 and a cutting edge 200; the cutting edge 200 comprises a tungsten steel connecting part 210 and a cutting part 220 arranged on the tungsten steel connecting part 210, and the tungsten steel connecting part 210 and the tungsten steel cutter body 100 are fixed in a welding-wire-free welding mode.
The tungsten steel cutter body 100 serves as a carrier for fixedly mounting the cutting edge 200, and the cutting edge 200 is mounted on an occasion needing processing, such as a lathe, a milling machine, a drilling machine or processing center equipment, and the like, through the tungsten steel cutter body 100, so as to perform corresponding processing on a workpiece. The cutting edge 200 comprises a tungsten steel connecting part 210 and a cutting part 220, the cutting part 220 is used for being in contact with a workpiece for processing, the tungsten steel connecting part 210 plays a role of connecting the cutting part 220 with the tungsten steel cutter body 100, the connection strength of the tungsten steel connecting part 210 and the tungsten steel cutter body 100 is enhanced in a welding and fixing mode, meanwhile, as welding wire welding is not performed, the same-material welding function of tungsten steel and tungsten steel is realized, compared with a brazing and fixing mode performed through welding wires with lower melting points than tungsten steel in the prior art, the higher melting point of the connection structure of the tungsten steel connecting part 210 and the tungsten steel cutter body 100 is ensured, the high-temperature resistance of the cutter in the manufacturing or using process is improved, the phenomenon that the cutter body of the cutter is separated from the cutting edge is prevented, and the reliability of the integral structure of the cutter is further improved.
It is understood that tungsten steel, also known as cemented carbide, refers to a sintered composite material comprising at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, tantalum carbide are common components of tungsten steel. Tungsten steel (hard alloy) has the performances of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, and even if the tungsten steel (hard alloy) still has very high hardness at 1500 ℃, compared with the existing brazing welding mode, the melting point of a welding wire is usually lower than that of a welded material, usually between 100 ℃ and 600 ℃, and the high temperature which can be resisted by the tungsten steel material is far higher than the temperature which can be resisted by the brazing welding wire, so that in the embodiment, the tungsten steel cutter body 100 and the tungsten steel connecting part 210 are fixed in a welding-wire-free welding mode, and the high temperature which can be resisted by a cutter is increased.
Since the tungsten steel connecting part 210 and the tungsten steel cutter body 100 are made of the same material and have the same composition, structure and performance, when the tungsten steel connecting part and the tungsten steel cutter body are melted, the tungsten steel connecting part and the tungsten steel cutter body are easily dissolved and enter the inside of the other side, so that the tungsten steel connecting part and the tungsten steel cutter body are more favorable for welding and fixing, and the welding efficiency is improved.
In practical application, the welding mode without welding wire can be determined according to practical situations, such as laser welding, gas welding, arc welding, electron beam welding or plasma welding, and the like.
The utility model discloses among the technical scheme, the cutter includes tungsten steel cutter body 100 and cutting edge 200, cutting edge 200 includes tungsten steel connecting portion 210 and cutting portion 220, cutting portion 220 is used for processing the work piece, tungsten steel connecting portion 210 is used for connecting cutting portion 220 and tungsten steel cutter body 100, it is fixed with tungsten steel cutter body 100 no welding wire butt fusion through tungsten steel connecting portion 210, realize tungsten steel and tungsten steel's same kind of material butt fusion, tungsten steel connecting portion 210 and tungsten steel cutter body 100 connection structure's higher melting point has been guaranteed, thereby the high temperature resistance ability of cutter in manufacturing or use has been improved, the cutter body that has prevented the cutter takes place with the phenomenon that the cutting edge was thrown off, the reliability of cutter overall structure has further been improved.
In an embodiment of the present invention, referring to fig. 1 to 4, the tungsten steel connecting portion 210 is fixedly connected to the tungsten steel cutter body 100 by laser welding.
It can be understood that laser welding utilizes focused laser beams as energy to bombard the workpiece to generate heat for welding, and because laser beams have high energy density, the heating process is extremely short, the welding spot is small, the heat affected zone is narrow, the welding deformation is small, the size precision of the weldment is high, and the local temperature can be controlled during welding.
In order to improve the wear resistance and prolong the service life of the cutting tool, referring to fig. 1 to 4, in an embodiment of the present invention, the cutting portion 220 is made of a superhard material.
Alternatively, the superhard material may refer to one of CBN (cubic boron nitride), PCBN (polycrystalline cubic boron nitride), PCD (polycrystalline diamond), etc., or a composite material in which a plurality of the above superhard materials are compounded.
In this embodiment, the material of the cutting portion 220 may be a superhard material, such as one of CBN (cubic boron nitride), PCBN (polycrystalline cubic boron nitride), PCD (polycrystalline diamond), etc., or a composite material obtained by combining a plurality of the superhard materials. The specific condition can be determined according to the actual use condition, and is not limited herein.
Further, referring to fig. 1 to 4, a specific connection structure between the cutting portion 220 and the tungsten steel connecting portion 210 may be determined according to actual circumstances, and may be an integral structure or a separate structure.
In one embodiment, the cutting portion 220 is a unitary structure with the tungsten steel connecting portion 210. It is understood that the cutting portion 220 and the tungsten steel connecting portion 210 may be both of tungsten steel structure, or the cutting portion 220 and the tungsten steel connecting portion 210 may be of different materials and integrally formed structure.
When the cutting portion 220 and the tungsten steel connecting portion 210 are both of a tungsten steel structure, the cutting edge 200 is an integral tungsten steel cutting edge, and is fixedly connected with the tungsten steel cutter body 100 in a laser welding manner, so that the integrity of the cutter is ensured, and the high temperature resistance is improved.
When the cutting portion 220 and the tungsten steel connecting portion 210 are integrally formed of different materials, on the basis of the foregoing embodiment, the cutting portion 220 may be made of a superhard material, and is welded or press-connected to the tungsten steel connecting portion 210 to form the cutting edge 200, which is fixedly connected to the tungsten steel cutter body 100 by laser welding, so as to improve wear resistance and high temperature resistance.
In an embodiment, the cutting portion 220 is fixed to the tungsten steel connecting portion 210 by laser welding, and a melting point of the cutting portion 220 is not lower than a melting point of the tungsten steel connecting portion 210.
It can be understood that the cutting part 220 is a member that is worn in direct contact with a workpiece, and the reliability of the connection of the cutting part 220 to the tungsten steel connecting part 210 is important, and the reliability of the cutting part 220 is stronger when the melting point of the cutting part 220 is greater than or equal to that of the tungsten steel connecting part 210 in a high temperature environment. Meanwhile, in order not to affect the cutting function of the cutting part 220, the cutting part 220 and the tungsten steel connecting part 210 are fixed by laser welding, so that the structural stability and the functionality are ensured.
In an embodiment of the present invention, the kind of the cutter can be any kind of cutter, such as a milling cutter, a reamer, a knife grinder, a chamfer cutter, a drill, a tooth cutter, etc. The following description will be made by taking a dental cutter as an example, and refer to fig. 1 to 4.
The tungsten steel cutter body 100 comprises a cutter handle 110 and a cutter head 120; tool bit 120 is located the one end of handle of a knife 110, tool bit 120 orientation is kept away from the protruding installation department 130 that is equipped with of direction of handle of a knife 110, tungsten steel connecting portion 210 is located installation department 130 is followed one side of the 110 thickness directions of handle of a knife, cutting portion 220 cover in tungsten steel connecting portion 210 deviates from the surface of installation department 130.
In this embodiment, the tungsten steel cutter body 100 includes a cutter handle 110 for being mounted on a machine tool and a cutter head 120 disposed at one end of the cutter handle 110, and for facilitating machining, the cutter head 120 is convexly provided with a mounting portion 130 for mounting the cutting edge 200 in a direction away from the cutter handle 110, so that the cutting edge 200 can protrude out of the tungsten steel cutter body 100 to smoothly contact with a workpiece for machining. The tungsten steel connecting portion 210 of the blade 200 is disposed at one side of the mounting portion 130 in the thickness direction, and the cutting portion 220 covers the surface of the tungsten steel connecting portion 120, so that the member contacting the workpiece is the cutting portion 220 having high hardness, thereby securing the machining efficiency while improving the wear resistance.
Specifically, the mounting portion 130 includes a first sidewall 131 and a second sidewall 132 connecting opposite sides of the cutter head 120, and the first sidewall 131 and the second sidewall 132 are connected at an included angle on a side away from the cutter head 120 to form a connecting arm 133;
from one side far away from tungsten steel connecting portion 210 to one side near tungsten steel connecting portion 210, connecting arm 133 sets up towards the direction that deviates from handle of a knife 110 outwards slope.
It can be understood that the first side wall 131 and the second side wall 132 are obliquely arranged relative to the thickness direction of the tool holder 110, and are connected at an included angle at one side away from the tool bit 120, so that the first side wall 131 and the second side wall 132 form a V-shaped structure, wherein the connecting arm 133 is a part of the mounting portion 130 protruding outwards, and meanwhile, the connecting arm 133 is further obliquely arranged outwards at one side close to the tungsten steel connecting portion, so that the tungsten steel connecting portion 210 protrudes outwards relative to the tool holder 110, and further the cutting portion 220 protrudes outwards, thereby ensuring the reliability of the contact processing of the cutting portion 220 and the workpiece.
Specifically, the tungsten steel connecting portion 210 is extended and protruded along the edge portions of the first side wall 131 and the second side wall 132; the cutting portion 220 covers the surface of the tungsten steel connecting portion 210, and is protruded in a direction away from the tool holder 110 relative to the tungsten steel connecting portion 210.
In this embodiment, the tungsten steel connecting portion 210 extends and protrudes along the edge portions of the first side wall 131 and the second side wall 132, at this time, the tungsten steel connecting portion 210 forms a V-shaped structure and protrudes outward, which ensures that the blade 200 can smoothly contact with a workpiece to be processed, and on this basis, the cutting portion 220 covers the surface of the tungsten steel connecting portion 210 and protrudes outward relative to the tungsten steel connecting portion 210, so that the cutting portion 220 forms a V-shaped structure protruding more than the tungsten steel connecting portion 210, thereby further improving the reliability of the contact processing between the cutting portion 220 and the workpiece, and achieving the purpose of ensuring the processing effect.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A tool, comprising:
a tungsten steel cutter body; and
the cutting edge comprises a tungsten steel connecting part and a cutting part arranged on the tungsten steel connecting part, and the tungsten steel connecting part is fixedly welded with the tungsten steel cutter body without welding wires.
2. The tool of claim 1, wherein the tungsten steel coupling portion is fixedly coupled to the tungsten steel tool body by laser welding.
3. The tool of claim 2, wherein the cutting portion is a superhard material construction.
4. A tool as claimed in claim 3, wherein the cutting portion is a CBN material structure, a PCBN material structure or a PCD material structure.
5. The tool according to any one of claims 1 to 4, wherein the cutting portion is of unitary construction with the tungsten steel connecting portion.
6. The tool according to any one of claims 1 to 4, wherein the cutting portion is fixed to the tungsten steel joint portion by laser welding, and a melting point of the cutting portion is not lower than a melting point of the tungsten steel joint portion.
7. The tool according to claim 1, wherein the tool is a milling, dental, drill, turning, reaming or sharpening tool.
8. The tool of claim 1, wherein the tungsten steel body comprises:
a knife handle; and
the tool bit, the tool bit is located the one end of handle of a knife, the tool bit orientation is kept away from the protruding installation department that is equipped with of direction of handle of a knife, tungsten steel connecting portion are located the installation department is followed one side of handle of a knife thickness direction, the cutting portion cover in tungsten steel connecting portion deviate from the surface of installation department.
9. The tool according to claim 8, wherein the mounting portion includes a first side wall and a second side wall connecting opposite sides of the tool bit, the first side wall being angled away from the tool bit to form a connecting arm;
from keeping away from one side of tungsten steel connecting portion to being close to one side of tungsten steel connecting portion, the linking arm orientation deviates from the direction of handle of a knife leans out the setting.
10. The tool according to claim 9, wherein the tungsten steel coupling portion is provided to extend and project along an edge portion of the first side wall and the second side wall; the cutting part covers the surface of the tungsten steel connecting part and is arranged in a protruding mode relative to the tungsten steel connecting part in the direction deviating from the tool handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120513216.3U CN214557494U (en) | 2021-03-10 | 2021-03-10 | Cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120513216.3U CN214557494U (en) | 2021-03-10 | 2021-03-10 | Cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214557494U true CN214557494U (en) | 2021-11-02 |
Family
ID=78319408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120513216.3U Active CN214557494U (en) | 2021-03-10 | 2021-03-10 | Cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214557494U (en) |
-
2021
- 2021-03-10 CN CN202120513216.3U patent/CN214557494U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5115697A (en) | Diamond rotary cutter flute geometry | |
| EP0079243B1 (en) | A composite compact component comprising a diamond or boron nitride compact | |
| JP2006528077A (en) | Uncoated cutting tool with brazed ultra-hard blank | |
| JPH04761B2 (en) | ||
| CN109304507A (en) | PCD milling cutter for processing carbon fiber composite material | |
| CN106573314B (en) | Cutting tool and method of making a cutting tool | |
| CN214557494U (en) | Cutting tool | |
| CN211727535U (en) | Superhard thread machining blade with water-drop-shaped chip breaking boss | |
| WO2016113078A1 (en) | Ceramic milling cutter | |
| CN210967025U (en) | Chip breaking type PDC turning tool | |
| JP4774952B2 (en) | Throw-away turning tool | |
| CN212168986U (en) | Rigid anti-sideslip multifunctional turning tool pressing mechanism | |
| CN109108590B (en) | Method for manufacturing multi-edge finish machining tool | |
| CN112916929B (en) | High-precision PCD corn milling cutter | |
| CN215315943U (en) | Miniature superhard cutter | |
| CN111331162A (en) | Rigid anti-sideslip multifunctional turning tool pressing mechanism | |
| CN115515740A (en) | Drill and method for manufacturing cut product | |
| JPH11320219A (en) | Hard sintered body throw-away chip and manufacture thereof | |
| CN214557702U (en) | Milling cutter | |
| CN217571036U (en) | Small-diameter milling cutter for processing low-sulfur stainless steel | |
| CN217044731U (en) | Improved generation drill bit alloy blade | |
| JP2746344B2 (en) | Cutting tool with high hardness composite sintered body as cutting edge | |
| CN219130877U (en) | PCD drill bit | |
| CN218135245U (en) | Diamond groove milling cutter that levogyration was cut on a left side | |
| CN213560082U (en) | Drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |