CN203711939U - Step forming drill - Google Patents
Step forming drill Download PDFInfo
- Publication number
- CN203711939U CN203711939U CN201320289177.9U CN201320289177U CN203711939U CN 203711939 U CN203711939 U CN 203711939U CN 201320289177 U CN201320289177 U CN 201320289177U CN 203711939 U CN203711939 U CN 203711939U
- Authority
- CN
- China
- Prior art keywords
- cutting portion
- cutting part
- utility
- model
- cutting
- 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 belongs to the field of cutting tools and particularly designs a step forming drill used for processing and forming a step surface in one time. The step forming drill comprises a knife handle connected with other devices, and is characterized in that a step cutting part is arranged at the front end of the knife handle and comprises a first cutting part, a second cutting part and a third cutting part; the first cutting part is connected with the knife handle and the second cutting part; the second cutting part is connected with the third cutting part; the diameters of the first, second and third cutting parts are reduced in sequence. The step forming drill designed by the utility model can effectively shorten the processing time and improve the processing precision.
Description
Technical field
The utility model belongs to cutting tool field, and a kind of one-time formed moulding step for machine table terrace of special design bores.
Background technology
Drilling is that hole class is processed conventional processing method, in prior art when processing step hole, general is all to adopt the cutter of different diameters to carry out repeatedly drilling to process, there is so following problem: on the one hand owing to needing to change cutter in process, must carry out multiple bearing, have like this position error, easily cause the concentricity of stepped hole poor, multiple bearing must spend the more time on the other hand, causes the waste in man-hour, and production efficiency is low.
Utility model content
The problem that the utility model exists for prior art, has designed and a kind ofly can carry out one-shot forming processing to the stepped hole of different-diameter simultaneously, and the moulding step of the utility model design bores and can effectively shorten process time and improve machining accuracy.
The utility model is achieved through the following technical solutions:
Moulding step bores, it comprises the handle of a knife being connected with other devices, it is characterized in that: the front end of described handle of a knife is provided with step cutting portion, described step cutting portion comprises the first cutting portion, the second cutting portion and the 3rd cutting portion, the first described cutting portion is connected with handle of a knife, the first cutting portion is connected with the second cutting portion, and the second cutting portion is connected with the 3rd cutting portion, and the diameter of described the first cutting portion, the second cutting portion and the 3rd cutting portion dwindles successively.
The diameter of the first described cutting portion is 18mm, and the length of the first cutting portion is 47mm.
The diameter of the second described cutting portion is 15.2mm, and the length of the second cutting portion is 26mm.
The diameter of the 3rd described cutting portion is 7mm, and the length of the first cutting portion is 7mm.
The utlity model has a little following:
Moulding step described in the utility model bores and can, to the moulding of stepped hole time processing, without multiple bearing, ensure machining accuracy and shorten process time.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the utility model is aforesaid will be become apparent with other object, feature and advantage.Wherein:
Fig. 1 is structural representation of the present utility model;
In figure, 1 is the 3rd cutting portion, and 2 is the second cutting portion, and 3 is the first cutting portion, and 4 is handle of a knife.
Detailed description of the invention
Moulding step as shown in Figure 1 bores, it comprises the handle of a knife 4 being connected with other devices, it is characterized in that: the front end of described handle of a knife 4 is provided with step cutting portion, described step cutting portion comprises the first cutting portion 3, the second cutting portion 2 and the 3rd cutting portion 1, the first described cutting portion 3 is connected with handle of a knife 4, the first cutting portion 3 is connected with the second cutting portion 2, the second cutting portion 2 is connected with the 3rd cutting portion 1, and the diameter of described the first cutting portion 3, the second cutting portion 2 and the 3rd cutting portion 1 dwindles successively.
The diameter of the first described cutting portion 3 is 18mm, and the length of the first cutting portion is 47mm.
The diameter of the second described cutting portion 2 is 15.2mm, and the length of the second cutting portion is 26mm.
The diameter of the 3rd described cutting portion 1 is 7mm, and the length of the first cutting portion is 7mm.
The utlity model has a little following:
Moulding step described in the utility model bores and can, to the moulding of stepped hole time processing, without multiple bearing, ensure machining accuracy and shorten process time.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model openly in scope; still can do some corrections or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (1)
1. moulding step bores, it comprises the handle of a knife being connected with other devices, it is characterized in that: the front end of described handle of a knife is provided with step cutting portion, described step cutting portion comprises the first cutting portion, the second cutting portion and the 3rd cutting portion, the first described cutting portion is connected with handle of a knife, the first cutting portion is connected with the second cutting portion, the second cutting portion is connected with the 3rd cutting portion, the first described cutting portion, the diameter of the second cutting portion and the 3rd cutting portion dwindles successively, the diameter of the first described cutting portion is 18mm, the length of the first cutting portion is 47mm, the diameter of the second described cutting portion is 15.2mm, the length of the second cutting portion is 26mm, the diameter of the 3rd described cutting portion is 7mm, the length of the first cutting portion is 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320289177.9U CN203711939U (en) | 2013-05-23 | 2013-05-23 | Step forming drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320289177.9U CN203711939U (en) | 2013-05-23 | 2013-05-23 | Step forming drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711939U true CN203711939U (en) | 2014-07-16 |
Family
ID=51151138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320289177.9U Expired - Fee Related CN203711939U (en) | 2013-05-23 | 2013-05-23 | Step forming drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033332A (en) * | 2015-09-08 | 2015-11-11 | 江苏艺佳精密仪器制造有限公司 | Continuous molding drill |
| EP3305447B1 (en) | 2016-02-14 | 2023-03-29 | Tec-Spiral Enterprises Tools Co., Ltd. | Step-structured twist drill |
-
2013
- 2013-05-23 CN CN201320289177.9U patent/CN203711939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033332A (en) * | 2015-09-08 | 2015-11-11 | 江苏艺佳精密仪器制造有限公司 | Continuous molding drill |
| EP3305447B1 (en) | 2016-02-14 | 2023-03-29 | Tec-Spiral Enterprises Tools Co., Ltd. | Step-structured twist drill |
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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: 20140716 Termination date: 20150523 |
|
| EXPY | Termination of patent right or utility model |