CN203030990U - Reaming drill bit - Google Patents
Reaming drill bit Download PDFInfo
- Publication number
- CN203030990U CN203030990U CN 201320014563 CN201320014563U CN203030990U CN 203030990 U CN203030990 U CN 203030990U CN 201320014563 CN201320014563 CN 201320014563 CN 201320014563 U CN201320014563 U CN 201320014563U CN 203030990 U CN203030990 U CN 203030990U
- Authority
- CN
- China
- Prior art keywords
- cutter
- handle
- welded
- hard alloy
- drill bit
- 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 - Fee Related
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Abstract
The utility model discloses a reaming drill bit which comprises a cutter handle made of 9SiCr steel. A hard alloy portion is welded at the front end of the cutter handle, a polymerize crystal diamond (PCD) cutter bit is welded at the front end of the hard alloy portion, and a cutting edge is arranged on the PCD cutter bit. A welding gap between the cutter handle and the hard alloy portion is of a 120-degree V-shaped structure. The cutter handle is a Mohs conical handle. The reaming drill bit adopts the mode that the hard alloy and the 9SiCr steel are mutually welded, ensures roughness, strength and coaxiality of cutters, and has the advantages of being long in service life, high in accuracy, high in efficiency and the like compared with like products. Once cutter assembly is adopted in the machining process, so that working efficiency is improved, and coaxiality of work pieces is ensured. The reaming drill bit is a welding type PCD cutter, greatly improves surface coarse degree of the work pieces, simultaneously greatly prolongs service life and enables the processed work pieces to be consistent.
Description
Technical field
The utility model relates to a kind of counterbit head.
Background technology
Existing counterbit head comprises taper shank, and the taper shank front end is connected with the PCD cutter head.Because taper shank is difficult to have concurrently toughness and high strength, therefore to have service life workpiece qualification rate short, that process low for existing counterbit head, the defective that percent defective is high.
The utility model content
The purpose of this utility model is to provide a kind of counterbit head that has toughness and high strength characteristics concurrently.
For achieving the above object, counterbit head of the present utility model comprises the handle of a knife that adopts the 9SiCr structural section to make, and the handle of a knife front end is welded with the carbide alloy part, and the front end of carbide alloy part is welded with the PCD cutter head, and the PCD cutter head is provided with cutting edge.
Weld seam between described handle of a knife and the carbide alloy part is 120 ° of V-structures.
Described cutting edge along the circumferential direction evenly is provided with 15 on the PCD cutter head.
Described handle of a knife is Morse taper shank.
The utlity model has following advantage:
The utility model is simple in structure, and is easy to use.Because handle of a knife (Morse taper shank) adopts the 9SiCr structural section to make, and has therefore guaranteed that the utility model has enough toughness; The PCD cutter head is welded on the carbide alloy part, and the carbide alloy part welds together with handle of a knife, thereby guarantees that the utility model has enough intensity.
The utility model is taked the form of carbide alloy and the butt welding of 9SiCr steel, has guaranteed toughness, intensity, the axiality of cutter, adopt compared with similar products have the life-span long, precision is high, the efficient advantages of higher.The utility model is once adorned cutter in process, improved operating efficiency like this, has guaranteed the axiality of workpiece.The utility model is welded type PCD cutter, has so improved the roughness of surface of the work greatly, also improved greatly simultaneously cutter life-span, guaranteed the uniformity (namely having guaranteed the interchangeability of workpiece) of the workpiece that processes.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, counterbit head of the present utility model comprises the handle of a knife 2 that employing is made through the 9SiCr structural section of Quenching Treatment, handle of a knife 2 front ends are welded with carbide alloy part 1, and the front end of carbide alloy part 1 is welded with PCD cutter head 3, and PCD cutter head 3 is provided with cutting edge 31.Weld seam 4 between described handle of a knife 2 and the carbide alloy part 1 is 120 ° of V-structures.Described cutting edge 31 along the circumferential direction evenly is provided with 15 on PCD cutter head 3.The described handle of a knife 2 preferred Morse taper shanks that adopt.
The utility model is taked the form of carbide alloy and the butt welding of 9SiCr steel, has guaranteed toughness, intensity, the axiality of cutter, adopt compared with similar products have the life-span long, precision is high, the efficient advantages of higher.The utility model is once adorned cutter in process, improved operating efficiency like this, has guaranteed the axiality of workpiece.The utility model is welded type PCD cutter, has so improved the roughness of surface of the work greatly, also improved greatly simultaneously cutter life-span, guaranteed that the workpiece that processes has uniformity (namely having guaranteed the interchangeability of workpiece).
Present embodiment is not that shape of the present utility model, material, structure etc. are done any pro forma restriction; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment; as the shape according to the corresponding adjustment handle of a knife of different connected modes of different lathes, this type of conversion all belongs to the protection domain of technical solutions of the utility model.
Claims (4)
1. counterbit head is characterized in that: comprise the handle of a knife that adopts the 9SiCr structural section to make, the handle of a knife front end is welded with the carbide alloy part, and the front end of carbide alloy part is welded with the PCD cutter head, and the PCD cutter head is provided with cutting edge.
2. counterbit head according to claim 1 is characterized in that: the weld seam between described handle of a knife and the carbide alloy part is 120 ° of V-structures.
3. counterbit head according to claim 1 and 2, it is characterized in that: described cutting edge along the circumferential direction evenly is provided with 15 on the PCD cutter head.
4. counterbit head according to claim 3, it is characterized in that: described handle of a knife is Morse taper shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014563 CN203030990U (en) | 2013-01-11 | 2013-01-11 | Reaming drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014563 CN203030990U (en) | 2013-01-11 | 2013-01-11 | Reaming drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030990U true CN203030990U (en) | 2013-07-03 |
Family
ID=48683131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320014563 Expired - Fee Related CN203030990U (en) | 2013-01-11 | 2013-01-11 | Reaming drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11673239B2 (en) | 2020-02-13 | 2023-06-13 | Milwaukee Electric Tool Corporation | Tool bit having a bimetal tip |
-
2013
- 2013-01-11 CN CN 201320014563 patent/CN203030990U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11673239B2 (en) | 2020-02-13 | 2023-06-13 | Milwaukee Electric Tool Corporation | Tool bit having a bimetal tip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20160111 |