CN202343998U - Super-long straight handle drill bit - Google Patents
Super-long straight handle drill bit Download PDFInfo
- Publication number
- CN202343998U CN202343998U CN2011204189207U CN201120418920U CN202343998U CN 202343998 U CN202343998 U CN 202343998U CN 2011204189207 U CN2011204189207 U CN 2011204189207U CN 201120418920 U CN201120418920 U CN 201120418920U CN 202343998 U CN202343998 U CN 202343998U
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- China
- Prior art keywords
- drill bit
- straight handle
- super
- long straight
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a super-long straight handle drill bit which comprises a drill bit, wherein a drill bit straight handle is made at the rear part of the drill bit. The super-long straight handle drill bit has the innovative characteristics that lengthened straight handles with equal diameters are coaxially welded at the tail end of the drill bit straight handle. The super-long straight handle drill bit provided by the utility model has a simple structure and is reasonable in design, can be used for manufacturing a deep hole processing cutter meeting the demand by using a conventional cutter within a short time, reduces the quantity of such non-standard cutters in storage, thereby reducing the procurement cost and liquidizing tie-up funds of the enterprise.
Description
Technical field
The utility model relates to machine tools, particularly a kind of overlength straight shank drill that is used for deep hole machining.
Background technology
At present, there are many deep holes (like blanking neutral hole, die ontology under die venting hole, the die case and the connection via hole on inserting etc.) need carry out Drilling Operations in the manufacture process of car panel die.Because the design reasons of mould structure causes its anufacturability extreme difference, needs adopt the drill bit of utmost point overlength could arrive finished surface and process.At present, be the outsourcing non-standard drill for the used drill bit of the processing of this type of deep hole, it exists following not enough: 1. nonstandard cutter costs an arm and a leg, and procurement cycle is long, and for guaranteeing to produce, deposit quantity is many in the storehouse.Since on the mould internal diameter of various deep holes different, can't unify, cause in the storehouse deposit specification more.Lay in a large amount of different size non-standard drills and will account for pressure enterprise substantial contribution, be unfavorable for that the fund of enterprise is applied in a flexible way, improve operation cost.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, and a kind of simple in structure, overlength straight shank drill of being easy to processing is provided.
The utility model solves its technical problem and realizes through following technical scheme:
A kind of overlength straight shank drill comprises a drill bit, and the drill bit rear portion is shaped on the drill bit staight shank, it is characterized in that: at the isometrical lengthening staight shank of the tail end coaxial welding of this drill bit staight shank.
And the length of described lengthening staight shank is 380～480mm.
Advantage of the utility model and beneficial effect are:
The utility model is simple in structure, and is reasonable in design, can utilize existing cutter to produce satisfactory deep hole processing cutter at short notice, reduces the deposit quantity in the storehouse of such nonstandard cutter, thereby reduces purchase cost, and revitalizing an enterprise accounts for the pressure fund.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Through specific embodiment the utility model is done further to detail below, following examples are descriptive, are not determinate, can not limit the protection domain of the utility model with this.
A kind of overlength straight shank drill comprises a drill bit 1, and the drill bit rear portion is shaped on drill bit staight shank 2, and its innovation part is: at the isometrical lengthening staight shank 4 of the tail end coaxial welding of this drill bit staight shank.Form weld seam 3 between lengthening staight shank and the drill bit staight shank.The length of lengthening staight shank is 380～480mm.
The process for making of this overlength straight shank drill is following:
1. adopt the 45# round steel to press drill bit staight shank size and Len req car system lengthening staight shank (reserving processing capacity according to the cutter overall length), modifier treatment HRC28-32 is to improve the rigidity of structure.
2. will extend staight shank and drill bit staight shank welds.
3. cutter is repaired, on lathe, adopted three-jaw to add top clamping and positioning mode, rest and reorganize, guarantee its axiality requirement with respect to the round handle of cutter to connecting round handle.
Utilize above-mentioned manufacturing approach, can produce satisfactory deep hole processing cutter at short notice, make deposit quantity, the specification in the storehouse of cutter be kept to every kind of 1-2 and prop up, reduced purchase cost.
Claims (2)
1. an overlength straight shank drill comprises a drill bit, and the drill bit rear portion is shaped on the drill bit staight shank, it is characterized in that: at the isometrical lengthening staight shank of the tail end coaxial welding of this drill bit staight shank.
2. overlength straight shank drill according to claim 1 is characterized in that: the length of described lengthening staight shank is 380～480mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204189207U CN202343998U (en) | 2011-10-28 | 2011-10-28 | Super-long straight handle drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204189207U CN202343998U (en) | 2011-10-28 | 2011-10-28 | Super-long straight handle drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343998U true CN202343998U (en) | 2012-07-25 |
Family
ID=46533027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204189207U Expired - Fee Related CN202343998U (en) | 2011-10-28 | 2011-10-28 | Super-long straight handle drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692177A (en) * | 2013-06-14 | 2014-04-02 | 哈尔滨汽轮机厂有限责任公司 | Method for machining extension drill |
| CN104625670A (en) * | 2015-01-16 | 2015-05-20 | 哈尔滨飞机工业集团有限责任公司 | Method for manufacturing lengthened drill bit |
-
2011
- 2011-10-28 CN CN2011204189207U patent/CN202343998U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692177A (en) * | 2013-06-14 | 2014-04-02 | 哈尔滨汽轮机厂有限责任公司 | Method for machining extension drill |
| CN103692177B (en) * | 2013-06-14 | 2016-01-13 | 哈尔滨汽轮机厂有限责任公司 | A kind of extension drill processing method |
| CN104625670A (en) * | 2015-01-16 | 2015-05-20 | 哈尔滨飞机工业集团有限责任公司 | Method for manufacturing lengthened drill bit |
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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: 20120725 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |