CN202162421U - Deep-hole gun drill - Google Patents
Deep-hole gun drill Download PDFInfo
- Publication number
- CN202162421U CN202162421U CN2011202271283U CN201120227128U CN202162421U CN 202162421 U CN202162421 U CN 202162421U CN 2011202271283 U CN2011202271283 U CN 2011202271283U CN 201120227128 U CN201120227128 U CN 201120227128U CN 202162421 U CN202162421 U CN 202162421U
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- drill
- cutting edge
- gun
- tool
- angle
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Abstract
The utility model discloses a deep-hole gun drill. A tool cutting edge angle of a drill of the gun drill is 25 DEG, the tool minor cutting edge angle is 15 DEG, a one-fold relief angle of a tool major cutting edge of the drill of the gun drill is 20 DEG, a two-fold relief angle of the tool major cutting edge is 25 DEG, and the relief angle of a tool minor cutting edge of the drill of the gun drill is 30 DEG. Compared with the gun drill in the prior art , the length of the tool major cutting edge and the length of the tool minor cutting edge are shorter, and the cutting output is less at the same feeding speed, therefore, the heat productivity is less, the wear rates of the tool major cutting edge and the tool minor cutting edge are effectively reduced, the grinding frequency of the drill is reduced, and the processing efficiency of the gun drill is improved.
Description
Technical field
The utility model relates to a kind of drill bit, particularly a kind of drill gun.
Background technology
Drill gun also is depth drill, is mainly used in deep hole machining, can obtain high-precision deep hole.Drill gun of the prior art generally is that its main geometric parameters tool cutting edge angle is 30 ° according to the GB design, and auxiliary angle is 20 °.
But the processing effect that the drill gun of this parameter can not can both play all parts, for example for the processing of ironcasting deep hole, cast iron quality is softer; Thereby its boring amount of feeding is bigger, and in order to obtain higher fineness, its boring rotating speed is also higher; Therefore when boring the big surplus deep hole of ironcasting, the cutter caloric value is higher, and cutting resistance is also bigger; Cause the wearing and tearing of drill gun main cutting edge very fast easily; Drill bit reconditioning frequency is higher, and production efficiency is lower, and tool wear comparatively fast also can cause the hole quality to be difficult for guaranteeing simultaneously.
Therefore need improve drill gun of the prior art,, improve the drill gun working (machining) efficiency and reduce the reconditioning frequency so that it can adapt to roughing feed amount, deep hole machining that caloric value is bigger.
The utility model content
In view of this, the purpose of the utility model provides a kind of deep hole drill gun, and it can adapt to the deep hole machining that the amount of feeding is big, heating is more, and tool wear speed is slow, the reconditioning frequency is low, raising drill gun working (machining) efficiency that can be very big.
The utility model deep hole drill gun, the tool cutting edge angle of gun drill are 25 °, and auxiliary angle is 15 °.
Further, the main cutting edge one heavy relief angle of gun drill is 20 °, and main cutting edge two-fold relief angle is 25 °;
Further, the front cutting edge relief angle of gun drill is 35 °;
Further, the external diameter of gun drill is 11mm, and apex point is 2.2mm to the distance of drill bit cylindrical radially.
The beneficial effect of the utility model: the utility model deep hole drill gun, with respect to drill gun of the prior art, the length of its main cutting edge and the length of front cutting edge are all shorter; Under identical feed speed; Its cutting output is littler, so its caloric value still less, can effectively reduce the rate of wear of major and minor cutting edge; Reduce drill bit reconditioning frequency, improve the drill gun working (machining) efficiency.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 looks sketch map for the utility model deep hole drill gun master;
Fig. 2 is the upward view of Fig. 1.
The specific embodiment
Fig. 1 looks sketch map for the utility model deep hole drill gun master; Fig. 2 is the upward view of Fig. 1.
As shown in the figure, present embodiment deep hole drill gun, the tool cutting edge angle a of gun drill is 25 °, auxiliary angle b is 15 °.With respect to drill gun of the prior art, the length of its main cutting edge and the length of front cutting edge are all shorter, at identical warp under the speed; Its cutting output is littler, so its caloric value still less, can effectively reduce the rate of wear of major and minor cutting edge; Reduce drill bit reconditioning frequency, improve the drill gun working (machining) efficiency.
In the present embodiment, the main cutting edge one heavy relief angle c of gun drill is 20 °, and main cutting edge two-fold relief angle d is 25 °, and the sharp and intensity combination property of the main cutting edge of this structure is better.
In the present embodiment, the front cutting edge relief angle e of gun drill is 35 °, can make front cutting edge sharper, and the chip breaking ability is stronger.
In the present embodiment, the external diameter l of gun drill is 11mm, and apex point is 2.2mm to the distance h of drill bit cylindrical radially.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (4)
1. deep hole drill gun, it is characterized in that: the tool cutting edge angle of gun drill is 25 °, auxiliary angle is 15 °.
2. deep hole drill gun according to claim 1 is characterized in that: the main cutting edge one heavy relief angle of gun drill is 20 °, and main cutting edge two-fold relief angle is 25 °.
3. deep hole drill gun according to claim 2 is characterized in that: the front cutting edge relief angle of gun drill is 35 °.
4. deep hole drill gun according to claim 3 is characterized in that: the external diameter of gun drill is 11mm, and apex point is 2.2mm to the distance of drill bit cylindrical radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202271283U CN202162421U (en) | 2011-06-30 | 2011-06-30 | Deep-hole gun drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202271283U CN202162421U (en) | 2011-06-30 | 2011-06-30 | Deep-hole gun drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162421U true CN202162421U (en) | 2012-03-14 |
Family
ID=45798273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202271283U Expired - Fee Related CN202162421U (en) | 2011-06-30 | 2011-06-30 | Deep-hole gun drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162421U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143750A (en) * | 2013-03-28 | 2013-06-12 | 苏州阿诺精密切削技术股份有限公司 | Deep hole half-moon drill bit |
| CN106001709A (en) * | 2016-05-20 | 2016-10-12 | 冯立友 | Complete cutting u-type eccentric blade drill bit |
-
2011
- 2011-06-30 CN CN2011202271283U patent/CN202162421U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143750A (en) * | 2013-03-28 | 2013-06-12 | 苏州阿诺精密切削技术股份有限公司 | Deep hole half-moon drill bit |
| CN103143750B (en) * | 2013-03-28 | 2016-05-18 | 苏州阿诺精密切削技术股份有限公司 | Deep hole first quarter moon drill bit |
| CN106001709A (en) * | 2016-05-20 | 2016-10-12 | 冯立友 | Complete cutting u-type eccentric blade 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: 20120314 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |