CN211438268U - Spherical milling cutter - Google Patents
Spherical milling cutter Download PDFInfo
- Publication number
- CN211438268U CN211438268U CN201922166298.4U CN201922166298U CN211438268U CN 211438268 U CN211438268 U CN 211438268U CN 201922166298 U CN201922166298 U CN 201922166298U CN 211438268 U CN211438268 U CN 211438268U
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- China
- Prior art keywords
- mounting surface
- milling cutter
- tool
- tool bit
- handle
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- 238000003801 milling Methods 0.000 title claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims description 11
- 239000010432 diamond Substances 0.000 claims description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 9
- 238000000498 ball milling Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 11
- 238000003466 welding Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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- Milling Processes (AREA)
Abstract
The utility model discloses a spherical milling cutter, wherein, the spherical milling cutter comprises a cutter handle, and the cutter handle is provided with a first mounting surface; a tool tip having a rake surface and a second mounting surface, the rake surface being coplanar with the second mounting surface; the tool holder and the tool bit are mounted in a matched mode through the first mounting surface and the second mounting surface. Through setting up second installation face and rake face to coplane for the error of tool bit thickness precision can not influence the precision of the arc maximum point of tool bit apart from the precision of the interval of the extension line of handle of a knife central line, and the precision of the arc maximum point of tool bit apart from the precision of the extension line of handle of a knife central line interval only receives the error influence that the tool bit was installed at the handle of a knife this moment, makes the arc maximum point of tool bit apart from the precision of the interval of the extension line of handle of a knife central line can effectual assurance, thereby the white line that produces when eliminating the processing.
Description
Technical Field
The utility model relates to a milling cutter technical field, specific spherical milling cutter that says so.
Background
At present, a white line appears easily in the sphere bottom that ordinary sphere milling cutter processed out, seriously influences product surface mirror effect, in order to eliminate this white line, adopts the mode of mirror surface coping, not only consuming time hard, and the sphere integrality effect is not good.
The inventor finds that the machined spherical surface can not generate white lines only when the distance between the highest point of the circular arc of the cutter head of the milling cutter and the extension line of the center line of the cutter handle is controlled within 0.00 +/-0.003 mm. The welding surface 22 of the tool bit 20 of the common spherical milling cutter and the rake surface 21 are two surfaces which are opposite, and the tool bit 20 is fixedly connected with the tool shank 10 through the welding surface 22, as shown in fig. 1, because the tool bit has a certain thickness, the installation deviation and the thickness deviation of the tool bit are overlapped, and further the arc highest point of the tool bit is difficult to accurately control within 0.00 +/-0.003 mm of the center line of the tool shank.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a spherical milling cutter, which can eliminate the white line appearing in the product during processing.
Based on the above object the utility model provides a spherical milling cutter, include
A shank having a first mounting surface;
a tool tip having a rake surface and a second mounting surface, the rake surface being coplanar with the second mounting surface;
the tool holder and the tool bit are mounted in a matched mode through the first mounting surface and the second mounting surface.
As an optional implementation mode, the tool shank and the tool bit are welded through the first mounting surface and the second mounting surface.
As an alternative embodiment, the front end arc of the rake face transitions to a tip.
As an alternative embodiment, the distance between the highest point of the circular arc and the extension line of the center line of the tool holder is 0.00 +/-0.003 mm.
As an alternative embodiment, the radius of the circular arc is greater than or equal to 0.2 mm.
As an alternative embodiment, the material of the tool tip is diamond.
As an optional implementation manner, the tool shank includes an integrally formed base section, a mounting seat, and a transition section connecting the base section and the mounting seat; the second mounting surface extends from the mounting seat to the transition section.
As an optional implementation mode, the material of the cutter handle is tungsten steel with 6% -8% of cobalt content.
As a second aspect of the present invention, there is provided a method of processing a ball milling cutter, comprising
Processing a first mounting surface of the cutter handle;
cutting the diamond into a required size to form a tool bit;
welding and fixing the first mounting surface of the cutter handle and the second mounting surface of the cutter head;
roughly machining the arc of the front cutter face;
roughly grinding the arc of the front cutter face;
and (6) performing finish machining on the circular arc.
As an optional implementation mode, after the finishing of the circular arc, the method further comprises the step of detecting the cutting edge state of the cutting edge and detecting the R value of the circular arc of the cutter by using a laser microscope.
From the above, can see out, the utility model provides a pair of spherical milling cutter sets up to the coplane through with second installation face and rake face for the error of tool bit thickness precision can not influence the circular arc highest point of tool bit apart from the precision of the interval of the extension line of handle of a knife central line, the precision of the circular arc highest point of tool bit apart from the interval of the extension line of handle of a knife central line only receives the error influence that the tool bit was installed at the handle of a knife this moment, the precision of the circular arc highest point of messenger's tool bit apart from the interval of the extension line of handle of a knife central line can effectual assurance, thereby the white line that produces.
Drawings
FIG. 1 is a schematic view of a connection mode of a tool shank and a tool bit in the prior art;
FIG. 2 is a schematic view of the connection between the tool holder and the tool bit according to the present embodiment;
fig. 3 is a schematic perspective view of a spherical milling cutter according to an embodiment of the present invention;
FIG. 4 is a detail view of section A of FIG. 3;
FIG. 5 is a top view of a tool bit according to an embodiment of the present invention;
fig. 6 is a side view of a cutter head according to an embodiment of the present invention.
10-a tool shank, 11-a first mounting surface, 20-a tool bit, 21-a rake surface, 22-a welding surface, 23-a second mounting surface and 24-an arc.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
In the following description of the embodiments, the detailed description of the embodiments of the present invention, such as the shapes and structures of the related components, the mutual positions and connection relationships between the components, the functions and working principles of the components, the manufacturing processes, and the operation and use methods, will be further described in detail to help those skilled in the art to understand the inventive concept and technical solutions of the present invention more completely, accurately and deeply.
As shown in fig. 2-6, a ball milling cutter according to an embodiment of the present invention is provided, which comprises
A tool shank 10, the tool shank 10 having a first mounting surface 11;
a tool tip 20, the tool tip 20 having a rake surface 21 and a second mounting surface 23, the rake surface 21 being coplanar with the second mounting surface 23;
the tool shank 10 and the tool head 20 are fittingly mounted through the first mounting surface 11 and the second mounting surface 23.
The utility model discloses in, set up to coplane through installing second installation face 23 with rake face 21, make the error of tool bit 20 thickness precision can not influence the precision of the 24 highest points of circular arc of tool bit 20 apart from the interval of the extension line of handle of a knife 10 central line, the precision of the 24 highest points of circular arc of tool bit 20 apart from the interval of the extension line of handle of a knife 10 central line only receives tool bit 20 to install the error influence at handle of a knife 10 this moment, the precision of the 24 highest points of circular arc of messenger tool bit 20 apart from the interval of the extension line of handle of a knife 10 central line can effectual assurance, thereby the white line that produces when eliminating the.
As an alternative embodiment, the tool shank 10 and the tool head 20 are welded through the first mounting surface 11 and the second mounting surface 23. Thus, the tightness of the connection between the tool shank 10 and the tool bit 20 is ensured.
As an alternative embodiment, as shown in fig. 5, the front arc 24 of the rake face 21 transitions to a tip. Optionally, the distance between the highest point of the arc 24 and the extension line of the center line of the tool holder 10 is 0.00 ± 0.003 mm.
In an alternative embodiment, the radius of the circular arc 24 is greater than or equal to 0.2 mm.
In an alternative embodiment, the cutting tip 20 is made of diamond.
Optionally, the material of the cutting tip 20 may be selected from a non-defective natural diamond or an element six-synthetic single crystal diamond.
As an alternative embodiment, the tool shank 10 includes a base section, a mounting seat, and a transition section connecting the base section and the mounting seat; the second mounting surface 23 extends from the mounting seat to the transition section.
As an optional embodiment, the material of the tool holder 10 is tungsten steel with 6% -8% of cobalt content.
The tungsten steel has the characteristics of high hardness, good rigidity and high strength, the mounting seat part of the tool shank 10 is generally small in diameter, the strength of the tool shank 10 prepared from the traditional material can be reduced after high-temperature welding, and the strength change of the tungsten steel material with the cobalt content of 6% -8% is relatively small after the high-temperature welding. Therefore, tungsten steel having a cobalt content of 6% to 8% is preferable.
As a second aspect of the present invention, the machining process of the spherical milling cutter is:
s1, machining a first mounting surface of the cutter handle by adopting a grinding machine;
normally, the width of the first mounting surface is half of the diameter of the tool holder, and if the diameter of the tool holder is 6mm, the width of the first mounting surface is 3 mm.
S2, cutting the diamond into a required size by using a laser cutting machine to form a tool bit;
typically 2.5 × 3/3 × 3/2 × 3, etc.
S3, welding and fixing the first mounting surface of the cutter handle and the second mounting surface of the cutter head by using a vacuum welding machine;
s4, roughly machining the arc of the rake face by using a laser machining machine tool;
optionally, the allowance of rough machining of most of diamonds is about 0.05mm larger than the size of the finished cutter.
S5, roughly machining the arc of the front cutter face by adopting a PG3B diamond grinding machine;
optionally, the rough machining tool arc is 0.01-0.02mm larger than the finished tool arc, for example, if the finished tool arc has an R value of 0.05mm, the rough machining tool arc has an R value of 0.06 mm.
S6, performing finish machining on the circular arc of the cutter by adopting a PG4B diamond grinder;
optionally, the finishing process directly processes the arc size and precision required by the finished product, for example, r0.2mm ± 0.01 mm.
S7, detecting the cutting edge state of the cutting edge by using a laser microscope, wherein the cutting edge state of the cutting edge needs to meet 2000 times of magnification detection without defects;
s8, detecting the arc R value of the cutter by using a cutter detector, and arranging the center height of the cutter in the center of the cutter bar within +/-0.001 mm.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A spherical milling cutter is characterized by comprising
A shank having a first mounting surface;
a tool tip having a rake surface and a second mounting surface, the rake surface being coplanar with the second mounting surface;
the tool holder and the tool bit are mounted in a matched mode through the first mounting surface and the second mounting surface.
2. The ball milling cutter according to claim 1, wherein the shank and the head are welded through the first and second mounting surfaces.
3. The spherical milling cutter according to claim 1, wherein the front end arc of the rake face transitions to a tip.
4. The spherical milling cutter according to claim 3, wherein the highest point of the circular arc is spaced from the extension of the center line of the shank by 0.00 ± 0.003 mm.
5. The spherical milling cutter according to claim 4, wherein the radius of the circular arc is equal to or greater than 0.2 mm.
6. The ball milling cutter according to any one of claims 1 to 5, wherein the cutting tip is made of diamond.
7. The spherical milling cutter according to claim 1, wherein the shank includes an integrally formed base section, a mounting seat, and a transition section connecting the base section and the mounting seat; the second mounting surface extends from the mounting seat to the transition section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922166298.4U CN211438268U (en) | 2019-12-04 | 2019-12-04 | Spherical milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922166298.4U CN211438268U (en) | 2019-12-04 | 2019-12-04 | Spherical milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211438268U true CN211438268U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922166298.4U Active CN211438268U (en) | 2019-12-04 | 2019-12-04 | Spherical milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211438268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814404A (en) * | 2019-12-04 | 2020-02-21 | 深圳市鑫金泉钻石刀具有限公司 | Spherical milling cutter and machining method thereof |
-
2019
- 2019-12-04 CN CN201922166298.4U patent/CN211438268U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814404A (en) * | 2019-12-04 | 2020-02-21 | 深圳市鑫金泉钻石刀具有限公司 | Spherical milling cutter and machining method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Longhua New District, Shenzhen, Guangdong, New Zealand village, 70 Keng Hang Village, Qian Keng Village, Guanlan street, Patentee after: Shenzhen xinjinquan Precision Technology Co.,Ltd. Address before: 518000 Longhua New District, Shenzhen, Guangdong, New Zealand village, 70 Keng Hang Village, Qian Keng Village, Guanlan street, Patentee before: SHENZHEN XIN JINQUAN DIAMOND CUTTING TOOL Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 101, No.70, baigong'ao Industrial Zone, Xikeng new village, Xikeng community, Fucheng street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Xinjinquan Precision Technology Co.,Ltd. Address before: No. 70, baigong'ao Industrial Zone, Xikeng new village, Xikeng community, Guanlan street, Longhua New District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen xinjinquan Precision Technology Co.,Ltd. |