CN212217123U - Hard alloy ball cutter - Google Patents
Hard alloy ball cutter Download PDFInfo
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- CN212217123U CN212217123U CN202020752955.3U CN202020752955U CN212217123U CN 212217123 U CN212217123 U CN 212217123U CN 202020752955 U CN202020752955 U CN 202020752955U CN 212217123 U CN212217123 U CN 212217123U
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- cutting edge
- tip
- tool bit
- lateral part
- chip groove
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Abstract
The utility model relates to a carbide ball sword, include the handle of a knife and the tool bit that is located handle of a knife one end, the anterior segment of tool bit is equipped with the processing portion, the processing portion includes tip cutting edge and lateral part cutting edge, the tool bit tip is the sphere form, evenly distributed has three arc tip cutting edges that extend to the tool bit side on this sphere form tool bit tip, three tip cutting edges connect three respectively and are located the tool bit side and be spiral helicine lateral part cutting edge, the tip cutting edge passes through the circular arc with the lateral part cutting edge and passes through the circular arc transition, be equipped with the tip chip groove between the adjacent tip cutting edge, be equipped with the lateral part chip groove between the adjacent lateral part cutting edge, the lateral part chip groove is by the first. The spiral cutting edge on the tool bit in the prior art is divided into two parts, namely an end cutting edge and a side cutting edge, the end cutting edge is of an arc-shaped structure, and the three end cutting edges are arranged, so that the strength is ensured, and the tool bit is not easy to damage; the lateral chip groove is composed of three curved surfaces, so that the phenomenon of chip accumulation is avoided, and the cutting efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the cutting tool technique and specifically relates to a carbide ball sword.
Background
A ball cutter is a tool commonly used in the cutting field, and performs a machining process on a workpiece by a blade on a surface thereof. The existing ball cutter is generally provided with a cutter handle and a cutter head, wherein a spiral cutting edge is arranged on the cutter head, a concave part of the spiral cutting edge forms a chip discharge groove, chips cut during processing of a workpiece are guided to the lower part and discharged, and therefore the chips are prevented from influencing the cutting process.
At present, in the use process of the ball cutter, the blade part at the end is found to be easy to break, and the chips are discharged only by the chip discharge groove of the concave part, and the phenomenon of chip accumulation is caused, so that the cutting efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a hard alloy ball cutter.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a carbide ball sword, includes the handle of a knife and the tool bit that is located handle of a knife one end, the anterior segment of tool bit is equipped with the processing portion, the processing portion includes tip cutting edge and lateral part cutting edge, and the tip of tool bit is the sphere form, and evenly distributed has three arc tip cutting edges that extend to the tool bit side on this sphere form tool bit tip, and three tip cutting edges connect three respectively and are located the tool bit side and be spiral helicine lateral part cutting edge, and the tip cutting edge passes through the circular arc with the lateral part cutting edge and passes through the circular arc transition, is equipped with the tip chip groove between the adjacent tip cutting edge, is equipped with the lateral part chip groove between the adjacent lateral part cutting edge, the lateral part chip groove.
In order to guarantee the strength of the end cutting edge and the good chip removal effect of the end, the end chip removal groove is further limited, and the upper end of the end chip removal groove is sequentially provided with a first tangent plane and a second tangent plane.
Further defined, the helix angle of the side cutting edge is 40 °. So set up, can effectively reduce lateral part cutting edge cutting resistance, make the cutting lighter and faster.
In order to increase the strength of the end cutting edge, it is further defined that the surface of the end cutting edge is provided with a chromium nitride coating.
In order to meet the cutting requirements and prevent the phenomenon of cutter breakage, the length of the cutter head is further limited to be one third of the length of the whole ball cutter.
Further defined, the length of the machined portion is one-half of the length of the cutter head.
The utility model has the advantages that: the utility model divides the spiral cutting edge on the tool bit in the prior art into two parts of an end cutting edge and a side cutting edge, the end cutting edge is of an arc structure, and three end cutting edges are arranged, thereby ensuring the strength and being not easy to damage; the lateral chip groove is composed of a first curved surface, a second curved surface and a third curved surface which are sequentially arranged, so that the phenomenon of chip accumulation is avoided, and the cutting efficiency is greatly improved.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of fig. 1 in the direction a.
In the figure: 1. the cutting tool comprises a tool handle, 2 parts of a tool bit, 3 parts of an end cutting edge, 4 parts of a side cutting edge, 5 parts of an end chip groove, 6 parts of a side chip groove, 51 parts of a first tangent plane, 52 parts of a second tangent plane, 61 parts of a first curved surface, 62 parts of a second curved surface and 63 parts of a third curved surface.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, the hard alloy ball cutter comprises a cutter handle 1 and a cutter head 2 positioned at one end of the cutter handle 1, wherein the cutter handle 1 is 100mm long, the cutter head 2 is 30mm long, the front section of the cutter head 2 is provided with a processing part with the length of 15mm, the processing part comprises an end cutting edge 3 and a side cutting edge 4, the end part of the cutter head 2 is spherical, evenly distributed has three arc tip cutting edges 3 that extend to tool bit 2 side on this spherical tool bit 2 tip, three tip cutting edges 3 connect three respectively and are located 2 sides of tool bit and are spiral helicine lateral part cutting edges 4, tip cutting edge 3 passes through circular arc transition with lateral part cutting edge 4, be equipped with tip chip groove 5 between the adjacent tip cutting edge 3, be equipped with lateral part chip groove 6 between the adjacent lateral part cutting edge 4, lateral part chip groove 6 comprises the first curved surface 61, second curved surface 62 and the third curved surface 63 that set gradually, tip chip groove 5 upper end has set gradually first tangent plane 51 and second tangent plane 52.
In the present embodiment, the helix angle of the side cutting edges 6 is 40 °, and the surface of the end cutting edge 3 is provided with a chromium nitride coating.
In addition, the roundness of the outer diameters of the tool shank 1 and the tool bit 2 is controlled within 0.002mm, and the runout of each cutting edge relative to the tool shank 1 is controlled within 0.01 mm.
The hard alloy ball cutter of the embodiment has the advantages of simple structure, strong practicability, long service life of the cutter, improvement of production efficiency and reduction of cost.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a carbide ball sword, includes handle of a knife and the tool bit that is located handle of a knife one end, its characterized in that: the anterior segment of tool bit is equipped with the processing portion, the processing portion includes tip cutting edge and lateral part cutting edge, and the tip of tool bit is the sphere form, and evenly distributed has three arc end cutting edges that extend to the tool bit side on this sphere form tool bit tip, and three tip cutting edges connect three respectively and lie in the tool bit side and be spiral helicine lateral part cutting edge, and tip cutting edge passes through the circular arc transition with the lateral part cutting edge, are equipped with the tip chip groove between the adjacent tip cutting edge, are equipped with the lateral part chip groove between the adjacent lateral part cutting edge, the lateral part chip groove comprises the first curved surface, second curved surface and the third curved surface that set gradually.
2. The cemented carbide ballknife of claim 1, wherein: the upper end of the end chip groove is sequentially provided with a first tangent plane and a second tangent plane.
3. The cemented carbide ballknife of claim 1, wherein: the helix angle of the side cutting edge is 40 °.
4. The cemented carbide ballknife of claim 1, wherein: the surface of the end cutting edge is provided with a chromium nitride coating.
5. The cemented carbide ballknife of claim 1, wherein: the length of the cutter head is one third of the length of the whole ball cutter.
6. The cemented carbide ball cutter of claim 5, wherein: the length of the processing part is half of the length of the cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752955.3U CN212217123U (en) | 2020-05-09 | 2020-05-09 | Hard alloy ball cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752955.3U CN212217123U (en) | 2020-05-09 | 2020-05-09 | Hard alloy ball cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212217123U true CN212217123U (en) | 2020-12-25 |
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ID=73927127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020752955.3U Active CN212217123U (en) | 2020-05-09 | 2020-05-09 | Hard alloy ball cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212217123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228064A (en) * | 2022-02-21 | 2022-03-25 | 赫比(成都)精密塑胶制品有限公司 | Point pouring gate processing method, point pouring gate processing equipment and mold with point pouring gate |
-
2020
- 2020-05-09 CN CN202020752955.3U patent/CN212217123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228064A (en) * | 2022-02-21 | 2022-03-25 | 赫比(成都)精密塑胶制品有限公司 | Point pouring gate processing method, point pouring gate processing equipment and mold with point pouring gate |
| CN114228064B (en) * | 2022-02-21 | 2022-05-06 | 赫比(成都)精密塑胶制品有限公司 | Point pouring gate machining method, point pouring gate machining equipment and mold with point pouring gate |
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