CN202970478U - Indexable adamas compound blade clamping device - Google Patents
Indexable adamas compound blade clamping device Download PDFInfo
- Publication number
- CN202970478U CN202970478U CN 201220695341 CN201220695341U CN202970478U CN 202970478 U CN202970478 U CN 202970478U CN 201220695341 CN201220695341 CN 201220695341 CN 201220695341 U CN201220695341 U CN 201220695341U CN 202970478 U CN202970478 U CN 202970478U
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- China
- Prior art keywords
- blade
- adamas
- indexable
- clamping device
- diamond composite
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Abstract
An indexable adamas compound blade clamping device comprises a blade body, wherein a circular arc groove which is matched with a disc-shaped adamas compound blade is arranged in the blade body, an inclined groove is arranged in one side of the circular arc groove, a screw hole is formed in the inclined groove, an inclined angle is formed between the axis of the screw hole and the end face of the adamas compound blade, a bolt is matched with the screw hole in a threaded mode, a wedge block is movably installed on the bolt, and the wedge surface of the wedge block is matched with the front blade surface of the adamas compound blade in a wedge tight mode. Due to the fact that the indexable adamas compound blade is rotated or replaced, the indexable adamas compound blade clamping device has the advantages of being capable of prolonging service life of the blade and reducing difficulties of molding the blade body. Due to the fact that the wedge tight type clamping device is adopted, the adamas compound blade is convenient and reliable to clamp and capable of eliminating negative influence of a tool bit on performances of adamas in welding.
Description
Technical field
The utility model relates to the clamping field of diamond composite blade, particularly a kind of indexable diamond composite blade clamping device.
Background technology
Diamond composite blade (Polycrystalline Diamond Compact) is the blade that a kind of glomerocryst top layer and carbide alloy tungsten carbide bottom of diamond are made under HTHP, it not only has hardness, the abrasion resistance of polycrystalline diamond, also has structural strength and the shock resistance of tungsten carbide concurrently.
The moulding process of diamond compact cutter head (claiming again diamond composite cutter) is, adopts special warfare, diamond composite blade diamond welding on bullet-headed hard alloy substrate end face.At present, diamond composite blade diamond has been widely used in oil bit.
One end of bullet-headed diamond composite cutter is the plane, and the other end is hemispherical.Its plane one end is work plane, is welded with the diamond composite blade, and hemispherical ends and the face of cylinder are for supporting stationary plane.This blade need to be preset semi open model cylindrical hole longitudinally on the oil bit drill body, be hemispherical at the bottom of the hole, and diamond composite cutter namely is installed on this, forms certain coordinating with cylindrical hole, and is fixed at the bottom of hemispherical-shaped aperture with the method for soldering.Axial and the cutting speed direction of blade is certain angle, namely forms the anterior angle of cutting.Because the fit clearance between blade and cylindrical hole is difficult to control, the welding quality of soldering is not easy to the reasons such as check, usually causes blade obscission in use to occur.The mounting means of this pre-buried welded type is a kind of permanent assembling mode, when tipping appears in blade, only has the integral replacing drill bit, and its economy is relatively poor.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of indexable diamond composite blade clamping device, can change easily when the diamond composite blade damages.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of indexable diamond composite blade clamping device, comprise cutter hub, cutter hub is provided with the arc-shaped slot that matches with discoidal diamond composite blade, one side of arc-shaped slot is provided with tipper, be provided with screw in tipper, the end face of the axis of screw and diamond composite blade has an angle, screw becomes threaded engagement with screw, be movably installed with voussoir on screw, the wedge surface of voussoir becomes wedging to coordinate with the rake face of diamond composite blade.
The area that contacts with the wedge surface of voussoir on the rake face of diamond composite blade is greater than the area of remainder.
Described angle is 10-23 °.
The bottom of described tipper is lower than the bottom of described arc-shaped slot.
A kind of indexable diamond composite blade clamping device that the utility model provides, by rotation or change indexable diamond composite blade, in application life that can the significant prolongation blade, the difficulty of cutter hub moulding lowers to some extent.After adopting the wedging type clamping device, diamond composite blade convenient mounting and clamping is reliable, has eliminated the adverse effect to diamond properties that cutter head causes in welding.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: screw 1, voussoir 2, diamond composite blade 3, cutter hub 4, rake face 5, tipper 6, screw 7.
The specific embodiment
In Fig. 1,2, a kind of indexable diamond composite blade clamping device, comprise cutter hub 4, it is characterized in that: cutter hub 4 is provided with the arc-shaped slot that matches with discoidal diamond composite blade 3, one side of arc-shaped slot is provided with tipper 6, is provided with screw 7 in tipper 6, and the end face of the axis of screw 7 and diamond composite blade 3 has an angle α, preferably, described angle α is 10-23 °.Further preferred angle α is 20 °.7 one-tenth threaded engagement of screw 1 and screw are movably installed with voussoir 2 on screw 1, the wedge surface of voussoir 2 coordinates with 5 one-tenth wedgings of rake face of diamond composite blade 3.
As the area that contacts with the wedge surface of voussoir 2 on the rake face 5 of diamond composite blade 3 in Fig. 1,2 area greater than remainder.
The bottom of described tipper 6 is lower than the bottom of described arc-shaped slot.
Adopt the utility model, when 3 wearing and tearing of diamond composite blade, by unclamping screw 1, discoidal diamond composite blade 3 is rotated to an angle to recover the cutting function of blade.
The utility model is by profile and the cutter hub mounting groove pore structure of redesign diamond composite blade, changed the mounting means of diamond composite blade, changing fixed installation installs for indexable clamping, has clamping reliable, easy for installation, significantly extended application life of diamond composite blade.When this clamping device had also been eliminated the welding of traditional diamond blade and carbide bit, the adverse effect of high temperature to the dimond synneusis diamond properties also was conducive to increase application life of diamond composite blade.Can be widely used in design and the production of oil bit.
Claims (4)
1. indexable diamond composite blade clamping device, comprise cutter hub (4), it is characterized in that: cutter hub (4) is provided with the arc-shaped slot that matches with discoidal diamond composite blade (3), one side of arc-shaped slot is provided with tipper (6), be provided with screw (7) in tipper (6), the end face of the axis of screw (7) and diamond composite blade (3) has an angle (α), screw (1) becomes threaded engagement with screw (7), be movably installed with voussoir (2) on screw (1), the wedge surface of voussoir (2) becomes wedging to coordinate with the rake face (5) of diamond composite blade (3).
2. a kind of indexable diamond composite blade clamping device according to claim 1 is characterized in that: the upper area that contacts with the wedge surface of voussoir (2) of the rake face (5) of diamond composite blade (3) is greater than the area of remainder.
3. a kind of indexable diamond composite blade clamping device according to claim 1, it is characterized in that: described angle (α) is 10-23 °.
4. a kind of indexable diamond composite blade clamping device according to claim 1, it is characterized in that: the bottom of described tipper (6) is lower than the bottom of described arc-shaped slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695341 CN202970478U (en) | 2012-12-17 | 2012-12-17 | Indexable adamas compound blade clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220695341 CN202970478U (en) | 2012-12-17 | 2012-12-17 | Indexable adamas compound blade clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970478U true CN202970478U (en) | 2013-06-05 |
Family
ID=48511566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220695341 Expired - Lifetime CN202970478U (en) | 2012-12-17 | 2012-12-17 | Indexable adamas compound blade clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867128A (en) * | 2012-12-17 | 2014-06-18 | 宜昌神达石油机械有限公司 | Indexable diamond compound blade clamping device |
-
2012
- 2012-12-17 CN CN 201220695341 patent/CN202970478U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867128A (en) * | 2012-12-17 | 2014-06-18 | 宜昌神达石油机械有限公司 | Indexable diamond compound blade clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 443001 Hubei province Wujiagang Gorges private science and technology park before Ping Road No. 6 Patentee after: Yichang Shenda Technology Co.,Ltd. Address before: 443001 Hubei province Wujiagang Gorges private science and technology park before Ping Road No. 6 Patentee before: YICHANG SHENDA PETROMACHINE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |