CN209969585U - Wear-resistant dual-purpose centre - Google Patents
Wear-resistant dual-purpose centre Download PDFInfo
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- CN209969585U CN209969585U CN201920568984.1U CN201920568984U CN209969585U CN 209969585 U CN209969585 U CN 209969585U CN 201920568984 U CN201920568984 U CN 201920568984U CN 209969585 U CN209969585 U CN 209969585U
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Abstract
The utility model discloses a wear-resisting dual-purpose top, including first apex head, apex axle, cutter body and cutter body protective sheath, first apex head is umbrella-type apex head, be equipped with the second apex head on the cutter body protective sheath, the second apex head is toper gyration apex head, the shell of first apex head and second apex head is equipped with the wearing layer that CBN made, the one end at the apex axle is installed to first apex head, the other end at the apex axle is established to the cutter body, apex axle surface is equipped with the spacing groove, the spacing groove is on a parallel with the axis of apex axle, the one end installation cutter body protective sheath of apex axle installation cutter body, the cutter body protective sheath cooperatees with the apex axle and covers the cutter body. The utility model is provided with two different top heads, which is not only suitable for plane processing pieces, but also suitable for processing larger inner bore diameter, and has wide application range; the wear-resistant layer made of CBN is coated on the tip, so that the heat resistance, the wear resistance and the corrosion resistance of the tip are greatly improved.
Description
Technical Field
The utility model relates to a machine tool accessory specifically is a wear-resisting dual-purpose top, relates to the machining field.
Background
When a machine tool is used for machining a workpiece, in order to ensure the machining precision and the coaxiality of the workpiece, a center device is arranged at the tail end of the machine tool to support the workpiece, the application of the center is very wide, and the center is an indispensable auxiliary tool in turning. The main disadvantages of the current tip structure are:
(1) the existing centre and the tool are separately produced and cannot be matched with each other, and when some small-size workpieces are machined, the used tool and the centre need to have the same surface run-out and need the tool and the centre with the same small size so as to ensure the machining precision.
(2) The center structure is mostly made of common steel heat treatment materials or hard alloy, the abrasion resistance is poor, the service life is short, and a machined workpiece is easy to reject due to unsatisfactory wear of the tip of the center in the using process.
(3) The existing centre is mostly a conical centre, and the processing precision and the coaxiality are influenced due to uneven stress of a propping surface when the existing centre props against irregular parts.
(4) When some workpieces are machined, the center only needs to be tightly pressed, and cannot rotate together with the workpieces.
At present, the functions of good wear resistance, high processing precision and no rotation at any time are realized due to the lack of related structures.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a wear-resistant dual-purpose center.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a wear-resisting dual-purpose top, includes first apex head, apex axle, cutter body and cutter body protective sheath, first apex head is umbrella-type apex head, be equipped with the second apex head on the cutter body protective sheath, the second apex head is toper gyration apex head, the shell of first apex head and second apex head is equipped with the wearing layer that CBN made, first apex head is installed the one end of apex axle, the cutter body is established the other end of apex axle, apex axle surface is equipped with the spacing groove, the spacing groove is on a parallel with the axis of apex axle, the one end installation cutter body protective sheath of apex axle installation cutter body, the cutter body protective sheath cooperatees with the apex axle and covers the cutter body.
Further, the first apex is an umbrella-shaped apex of 30 °, 45 ° or 60 °.
Still further, the second apex is a 30 °, 45 ° or 60 ° tapered swivel apex.
Furthermore, the cutter body is a milling cutter or a turning cutter.
Furthermore, the limiting groove is a square groove.
Furthermore, the cutter body is fixedly connected with the center shaft through a bolt.
Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: the two different ejector pins are suitable for plane machining, larger inner hole diameter machining and wide application range; the wear-resistant layer made of CBN is coated on the tip, so that the heat resistance, the wear resistance and the corrosion resistance of the tip are greatly improved, and the cutter body protective sleeve is arranged to well protect the cutter body from being oxidized or polluted by the outside.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The tool comprises a tool body, a first ejector pin head, a second ejector pin head, a limiting groove, a second ejector pin head, a cutter.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
As shown in fig. 1, the wear-resistant dual-purpose center comprises a first apex head 1, an apex shaft 2, a cutter body 3 and a cutter body protective sleeve 5, wherein the first apex head 1 is an umbrella-shaped apex head with the angle of 30 degrees, 45 degrees or 60 degrees, a second apex head 6 is arranged on the cutter body protective sleeve, the second apex head 6 is a conical rotary apex head with the angle of 30 degrees, 45 degrees or 60 degrees, the apex heads with different angles are suitable for different workpieces, and the shells of the first apex head 1 and the second apex head 6 are provided with wear-resistant layers made of CBN (cubic boron nitride), so that the heat resistance, the wear resistance and the corrosion resistance of the center are greatly improved, and the service life of the center is prolonged. First apex head 1 is installed in the one end of apex axle 2, and the cutter body is established at the other end of apex axle 2, and apex axle 2 surface is equipped with square spacing groove 4, and spacing groove 4 is on a parallel with the axis of apex axle 2, and mounting bolt or round pin isotructure can prevent top rotation in order to fix in the base structure on spacing groove 4, reaches the effect that only the top is tight not rotatory. The one end installation cutter body protective sheath 5 of the installation cutter body 3 of apex axle 2, cutter body protective sheath 5 and apex axle cooperate and cover cutter body 3, and cutter body 3 is milling cutter or lathe tool, and cutter body 3 passes through bolt 7 fixed connection with apex axle 2. The cutter of beating and precision in top other end installation supporting surface, the machining precision that uses top and cutter body to improve the work piece simultaneously has also improved the utility model discloses an application range, design cutter body protective sheath can protect the cutter body when not using the cutter body, has prolonged the life of this device. The two different top tips are arranged in the embodiment, so that the device is not only suitable for plane machining, but also suitable for machining with a larger inner aperture, and has a wide application range; the wear-resistant layer made of CBN is coated on the tip, so that the heat resistance, the wear resistance and the corrosion resistance of the tip are greatly improved, and the cutter body protective sleeve is arranged to well protect the cutter body from being oxidized or polluted by the outside.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A wear-resistant dual-purpose centre is characterized in that: comprises a first top point (1), a top point shaft (2), a cutter body (3) and a cutter body protective sleeve (5), the first apex point (1) is an umbrella-shaped apex point, the cutter body protective sleeve is provided with a second apex point (6), the second apical tip (6) is a conical rotary apical tip, the shells of the first apical tip (1) and the second apical tip (6) are provided with wear-resistant layers made of CBN, the first apex (1) is arranged at one end of the apex shaft (2), the cutter body is arranged at the other end of the center shaft (2), a limit groove (4) is arranged on the surface of the center shaft (2), the limiting groove (4) is parallel to the axis of the center shaft (2), one end of the center shaft (2) where the cutter body (3) is installed is provided with a cutter body protective sleeve (5), the cutter body protective sleeve (5) is matched with the tip shaft and covers the cutter body (3).
2. The dual use point of claim 1, wherein: the first apex (1) is an umbrella-shaped apex of 30 degrees, 45 degrees or 60 degrees.
3. The dual use point of claim 1, wherein: the second apex (6) is a conical rotary apex of 30 degrees, 45 degrees or 60 degrees.
4. The dual use point of claim 1, wherein: the cutter body (3) is a milling cutter or a turning cutter.
5. The dual use point of claim 1, wherein: the limiting groove (4) is a square groove.
6. The dual use point of claim 1, wherein: the cutter body (3) is fixedly connected with the center shaft (2) through a bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920568984.1U CN209969585U (en) | 2019-04-24 | 2019-04-24 | Wear-resistant dual-purpose centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920568984.1U CN209969585U (en) | 2019-04-24 | 2019-04-24 | Wear-resistant dual-purpose centre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209969585U true CN209969585U (en) | 2020-01-21 |
Family
ID=69259365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920568984.1U Active CN209969585U (en) | 2019-04-24 | 2019-04-24 | Wear-resistant dual-purpose centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209969585U (en) |
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2019
- 2019-04-24 CN CN201920568984.1U patent/CN209969585U/en active Active
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