CN203765014U - PCBN (polycrystalline cubic boron nitride) blade used for heavy-duty cutting - Google Patents
PCBN (polycrystalline cubic boron nitride) blade used for heavy-duty cutting Download PDFInfo
- Publication number
- CN203765014U CN203765014U CN201420152438.7U CN201420152438U CN203765014U CN 203765014 U CN203765014 U CN 203765014U CN 201420152438 U CN201420152438 U CN 201420152438U CN 203765014 U CN203765014 U CN 203765014U
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- CN
- China
- Prior art keywords
- cutter head
- pcbn
- blade
- heavy cutting
- heavy
- 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.)
- Expired - Lifetime
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 39
- 229910052582 BN Inorganic materials 0.000 title abstract description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title abstract description 3
- 238000003466 welding Methods 0.000 claims abstract description 10
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 claims description 24
- 239000011159 matrix material Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 7
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model provides a PCBN (polycrystalline cubic boron nitride) blade used for heavy-duty cutting. Concave structures used for mounting of knife heads are processed at the top corners of a base body, the knife heads are embedded in the concave structures which are processed in a matched manner through vacuum welding, and each concave structure is a U-like structure. A designing mode of straight lines and circular arcs is adopted for each U-like structure, so that strength of the blade can be greatly improved, single-side maximum effective cutting depth can be increased to 1.5-2.0mm from 0.6mm that a common PCBN blade has, and processing efficiency is improved substantially; target welding strength and processing performance are optimized to a great extent; angles formed by waist sides and bases of each U-like structure are obtuse angles, so that the defect of insufficient reliability caused by proneness to breaking due to a conventional acute-angle designing mode is overcome.
Description
Technical field
The utility model relates to machinery and sintered carbide tools technical field, is specifically related to a kind of PCBN blade for heavy cutting.
Background technology
Along with intensity and the accurate ambilateral lifting of modern mechanical manufacturing process requirements, corresponding machine-building process technology also must Synchronous lifting to adapt to add the market demand, for occupy the heavy cutting of significant proportion in machine-building manufacture field for, the cutting horizontal of heavy cutting apparatus is urgently optimized.
For the PCBN blade that is usually used in superhard material cutting, weld strength and matrix strength are the key factors of the final cutting ability of impact, and the direct acting factor of weld strength is exactly the size of bonding area.
The price of the Whole PC BN material in PCBN cutter field is high, add the most blade structures that adopt conventional type of PCBN blade of prior art, easily cause the series of problems such as cutter head comes off, maximum effective cut depth is low, processing intensity difference because of its bonding area deficiency, matrix strength deficiency, corresponding weld strength can not meet the demand of heavy cutting.
The current improvement for prior art also only limit to is directly copied and simple and easy improvement more, and structural design thinking is restricted always, for the exploitation dynamics deficiency of the new application aspect of product, is difficult to adapt to the demand for larger maximum effective cut depth and cutting hardness.
Utility model content
In view of this, the utility model provides a kind of PCBN blade for heavy cutting, by changing the mentality of designing of cutter head structure of traditional PCB N blade, can realize 2 times of above maximum effective cut depths.
The technical solution adopted in the utility model is specially: a kind of PCBN blade for heavy cutting, comprise matrix, the drift angle place of described matrix is processed with the concave inward structure for cutter head is installed, described cutter head embeds described concave inward structure by vacuum welding, described concave inward structure is analog-U shaped structure, and described analog-U shaped structure comprises symmetrical waist limit, both sides and base.
Between waist limit, described both sides and base, connect by circular arc, described circular arc is of a size of R0.4～0.8mm.
The angle on waist limit, described both sides is 40～60 °.
Described cutter head is the Whole PC BN without substrate layer.
The described cutter head upper and lower two halves of serving as reasons form by vacuum welding without the Whole PC BN of substrate layer.
The area of single described cutter head is 6～12mm
2.
The monolateral maximum effective cut depth 1.5～2.0mm of described cutter head.
The positive and negative of described cutter head is all processed with cutting edge.
The beneficial effect that the utility model produces is:
Designed arc-shaped appearance in the analog-U shaped structure of novel PC BN blade has solved the defect that the blade base of prior art easily fractures, the angle that waist limit, both sides and base form is obtuse angle, the design that obtuse angle adds circular arc can farthest reduce stress, promotes greatly the intensity of blade;
Like product compared to existing technology, blade of the present utility model has reached the object of heavy cutting with minimum PCBN materials'use area, and the area of cutter head drops to 6～12mm from tens square millimeters easily
2, under the high background of Whole PC BN material price, greatly reduce the cost of product, and the design that is all processed with the two-sided cutting edge of cutting edge of the positive and negative of cutter head has also further improved the cost performance of product;
The monolateral maximum effective cut depth of the cutter head welding for the Whole PC BN of continuous processing with for the two halves Whole PC BN of strong interrupted processing conditions of analog-U shaped structure can be increased to 1.5-2.0mm from the 0.6mm of common PCBN blade, working (machining) efficiency increases substantially, Target Weld intensity and processing characteristics are optimized largely, can realize hardened steel, bearing steel, rough turn and the finish turning of high-speed steel, chilled cast iron, has substantially improved the cutting ability of blade.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, can more completely understand better the utility model.Accompanying drawing described herein is used to provide further understanding of the present utility model, and embodiment and explanation thereof are used for explaining the utility model, does not form improper restriction of the present utility model.
Fig. 1 is the structural representation of a kind of PCBN blade for heavy cutting of the utility model;
Fig. 2 is a kind of PCBN blade schematic top plan view for heavy cutting of the utility model;
Fig. 3-1 is the matrix partial structurtes schematic diagram of a kind of PCBN blade for heavy cutting of the utility model;
Fig. 3-2-1 is the partial structurtes schematic diagram of the Whole PC BN cutter head of a kind of PCBN blade for heavy cutting of the present invention;
Fig. 3-2-2 is the empty partial structurtes schematic diagram that welds the cutter head forming of the Whole PC of the two halves up and down BN of a kind of PCBN blade for heavy cutting of the present invention.
In figure: 1, matrix 2, cutter head 3, concave inward structure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
A kind of PCBN blade for heavy cutting as shown in Figure 1-2, comprise the 1 drift angle place processing of hard alloy substrate 1 and matrix for the concave inward structure 3 of cutter head 2 is installed, cutter head 1 embeds the concave inward structure 3 of matrix 2 by vacuum welding, vacuum welding technology has increased bonding area, strengthen the bond strength of PCBN cutter head 2 and hard alloy substrate 1, in ensureing cutting depth, greatly reduced cutter head area.
Concave inward structure 3 is analog-U shaped structure, the design of class U-shaped structure is further as shown in Fig. 3-1, and described analog-U shaped structure comprises symmetrical waist limit, both sides and base, between waist limit, both sides and base, connects by circular arc, circular arc is of a size of R0.4～0.8mm, and the angle on waist limit, both sides is 40～60 °.Because the angle forming between the waist limit of analog-U shaped structure and base is obtuse angle, than acute angle design, obtuse angle design portion easily fractures, and reliability is high;
As standard, the cutting edge of cutter head 2 is long is 2.5mm.The area of single cutter head 2 is 6～12mm
2, greatly reduce the cost of product, monolateral maximum effective cut depth 1.5～2.0mm, stock-removing efficiency significantly improves; The positive and negative of cutter head 2 is all processed with cutting edge, and the design of two-sided cutting edge has further improved the cost performance of blade, has farthest met the process requirements of user to heavy cutting.
Embodiment 1
As shown in Fig. 3-2-2, the material of cutter head 2 is the Whole PC BN(polycrystalline cubic boron nitride without substrate layer), Whole PC BN not only makes cutter head intensity high, and cutter head area significantly reduce cost control, maximum effective cut depth are all had to obvious contribution to the optimization of stock-removing efficiency two aspects.
Embodiment 2
As shown in Fig. 3-2-2, the performance of Whole PC BN cutter head is no doubt good, but this kind of structure is often only suitable for continuous processing, in strong interrupted processing, Whole PC BN probably occurs that entirety crumbles, can cause the positive and negative of whole cutter head 2 all can not normally use, in order to adapt to better various processing conditions and processing environment, the Whole PC BN of embodiment is become by the identical Whole PC BN of upper and lower two halves and formed by vacuum welding, such structural design, even if ensured in situation that the one side Whole PC BN of cutter head 2 crumbles, another side can also normally use, reliability and applicability under different processing conditions are ensured.
As mentioned above; embodiment of the present utility model is explained; obviously, as long as do not depart from fact inventive point of the present utility model and effect, the distortion that will be readily apparent to persons skilled in the art, within being all included in protection domain of the present utility model yet.
Claims (8)
1. for a PCBN blade for heavy cutting, it is characterized in that, the drift angle place of matrix is processed with the concave inward structure for cutter head is installed, and described cutter head embeds described concave inward structure by vacuum welding; Described concave inward structure is analog-U shaped structure, and described analog-U shaped structure comprises symmetrical waist limit, both sides and base.
2. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, between waist limit, described both sides and base, connect by circular arc, described circular arc is of a size of R0.4～0.8mm.
3. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, the angle on waist limit, described both sides is 40～60 °.
4. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, described cutter head is the Whole PC BN without substrate layer.
5. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, the described cutter head upper and lower two halves of serving as reasons form by vacuum welding without the Whole PC BN of substrate layer.
6. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, the area of single described cutter head is 6～12mm
2.
7. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, the monolateral maximum effective cut depth 1.5～2.0mm of described cutter head.
8. a kind of PCBN blade for heavy cutting according to claim 1, is characterized in that, the positive and negative of described cutter head is all processed with cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152438.7U CN203765014U (en) | 2014-03-31 | 2014-03-31 | PCBN (polycrystalline cubic boron nitride) blade used for heavy-duty cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152438.7U CN203765014U (en) | 2014-03-31 | 2014-03-31 | PCBN (polycrystalline cubic boron nitride) blade used for heavy-duty cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203765014U true CN203765014U (en) | 2014-08-13 |
Family
ID=51282261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152438.7U Expired - Lifetime CN203765014U (en) | 2014-03-31 | 2014-03-31 | PCBN (polycrystalline cubic boron nitride) blade used for heavy-duty cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203765014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862075A (en) * | 2014-03-31 | 2014-06-18 | 北京沃尔德超硬工具有限公司 | PCBN blade for heavy cutting |
| CN111889715A (en) * | 2020-07-31 | 2020-11-06 | 开封贝斯科超硬材料有限公司 | Superhard composite cutter and manufacturing method thereof |
-
2014
- 2014-03-31 CN CN201420152438.7U patent/CN203765014U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862075A (en) * | 2014-03-31 | 2014-06-18 | 北京沃尔德超硬工具有限公司 | PCBN blade for heavy cutting |
| CN111889715A (en) * | 2020-07-31 | 2020-11-06 | 开封贝斯科超硬材料有限公司 | Superhard composite cutter and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING WORLDIA DIAMOND TOOLS CO., LTD. Free format text: FORMER NAME: BEIJING WORLD SUPER-HARD TOOLS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100018, No. 7, building 7-12, No. 1, Jiuxianqiao East Road, Chaoyang District, Beijing, No. five Patentee after: BEIJING WORLDIA DIAMOND TOOLS Co.,Ltd. Address before: 100018 Jiuxianqiao Chaoyang District East Road, No. 1, No., building 7-12, layer five, layer 7 Patentee before: Beijing World Super Hard Tools Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |