CN202517092U - Gun drill for austenitic stainless steel processing - Google Patents
Gun drill for austenitic stainless steel processing Download PDFInfo
- Publication number
- CN202517092U CN202517092U CN 201120569908 CN201120569908U CN202517092U CN 202517092 U CN202517092 U CN 202517092U CN 201120569908 CN201120569908 CN 201120569908 CN 201120569908 U CN201120569908 U CN 201120569908U CN 202517092 U CN202517092 U CN 202517092U
- Authority
- CN
- China
- Prior art keywords
- drill
- chip
- blade
- drill bit
- gun
- 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
Links
Images
Abstract
The utility model discloses a gun drill for austenitic stainless steel processing, which comprises a gun drill body (2) and a drill bit edge (3), wherein the drill bit edge (3) is provided with an edge guide belt (4); a chip breaking groove and a chip separating groove are arranged in the drill bit edge; the chip breaking groove has a depth of 0.5 mm and a width of 2 mm; the chip separating groove has a depth of 0.5 mm and a width of 2 mm; and the length of the edge guide belt of a drill bit is 3-4 times the diameter of the drill bit. The gun drill has the beneficial effects that through arranging the chip breaking groove and the chip separating groove, ideal C-shaped chips can be obtained in the processing process, so that the chips can be enabled to be discharged along a V-shaped chip guiding groove of a drill rod; and through increasing the edge guide belt of the drill bit, when small-deep hole processing is carried out on austenitic stainless steel, good straightness and good roughness are realized.
Description
Technical field
The present invention relates to a kind of drill gun of hard-cutting material small deep hole processing, relate in particular to the drill gun of austenitic stainless steel processing.
Background technology
Drill gun of the prior art has efficient height, machining hole good linearity straight man-hour in that general material is added, in the process self-conductance of drill bit blade to etc. advantage, and in the last few years, obtained extensive use at big L/D ratio small deep hole manufacture field.But, carry out small deep hole for this hard-cutting material of austenitic stainless steel and add man-hour, because the plasticity of this material is big, poor thermal conductivity, cutting force is big, the work hardening phenomenon is serious; Cause the chip breaking weak effect; Chip removal is not smooth, is prone to cause cutter bonding breakage in the process, therefore; Be prone to produce chip removal man-hour not smooth in that the austenitic stainless steel small deep hole is added with existing drill gun, and the linearity and the roughness in processing aperture are also undesirable.
Summary of the invention
The goal of the invention of the utility model is to provide a kind of drill gun that is applicable to austenitic stainless steel processing; It is smooth that it can realize that the austenite small deep hole is added the chip removal in man-hour; And realize good linearity and the roughness in processing aperture; Further purpose is to guarantee the sharp of blade, and the intensity of strengthening blade.
The invention provides a kind of drill gun that is used for austenitic stainless steel processing, it comprises the drill bit blade with drill bit blade guidance tape, and the drill bit blade is provided with chip-breaker and chip dividing groove; Wherein the degree of depth of chip-breaker is 0.5mm; Width is 2mm, and the degree of depth of chip dividing groove is 0.5mm, and width is 2mm; The length L of drill bit blade guidance tape is 3-4 a times of bit diameter D, is preferably 3.5 times.Because being arranged on of chip-breaker and chip dividing groove can obtain desirable " C " shape bits in the process, thereby guarantees that smear metal is along the smooth and easy discharge of drilling rod V-arrangement dregs guiding groove; The increase of drill bit blade guidance tape can be implemented in and austenitic stainless steel is carried out small deep hole add and realize good linearity and roughness man-hour.
The chip-breaker front portion leaves that 0.5mm is negative to lead rib, has further strengthened the intensity of blade.
The axial outside spacing of the axial centre line-spacing of chip dividing groove is 2.75mm.
The outer basil of drill gun blade is that 20 ° and inner cutting angle are 15 °.
The length L of preferred drill bit blade guidance tape is 3.5 times of bit diameter D
The outer edge clearance angle of drill gun blade is set to two backs corner structure, and wherein primary clearance is 15 °, and front clearance is 20 °.Outer edge clearance angle is set to two backs corner structure, makes cutting fluid can arrive blade, and guarantees the sharp of blade, to adapt to the processing of austenitic stainless steel material.
Description of drawings
Fig. 1 is the structural representation of the drill gun of the utility model;
Fig. 2 is the drill bit blade structural representation of drill gun;
Fig. 3 is a drill gun A-A cut-away view;
Fig. 4 is that the K of drill gun is to view.
The specific embodiment
Like Fig. 1, shown in Figure 2; The drill gun of the utility model is the improvement on existing drill gun, and drill gun 1 has drill gun body 2 and drill bit blade 3, and wherein drill bit blade 3 has blade guidance tape 4; Wherein the length of the length of blade guidance tape 4 is L; Bit diameter is D, and the drill gun of the utility model has increased the length of the blade guidance tape of drill gun in the prior art, make the length L of blade guidance tape of the utility model be bit diameter D 3-4 doubly; Be preferably 3.5 times, the growth of this blade guidance tape L has guaranteed that drill gun has better processing linear property man-hour adding.
As shown in Figure 2, the outer basil α 1 of drill gun blade is that 20 ° and inner cutting angle α 2 are 15 °, simultaneously outer edge clearance angle of the prior art is improved, and outer edge clearance angle is set to two backs corner structures, and wherein primary clearance β 2 is that 15 ° and front clearance β 1 are 20 °.So; Outer edge clearance angle is set to two backs corner structure, makes cutting fluid can arrive cutting like Fig. 3 and shown in Figure 4, wherein is provided with chip-breaker 4 and chip dividing groove 5 at drill bit blade 2; Wherein the degree of depth of chip-breaker is that D1 is 0.5mm; Width L1 is 2mm, and it is the negative rib of leading of 0.5mm that width L3 is left in the chip-breaker front portion, to strengthen the intensity of blade; The degree of depth of chip dividing groove is that L2 is 0.5mm, and width is that D2 is 2mm, and the axial outside spacing of chip dividing groove axial centre line-spacing is that L4 is 2.75mm.Since be arranged on and can obtain desirable " C " shape bits in the process, thereby guarantee the V-arrangement dregs guiding groove smooth and easy discharge of smear metal along drilling rod, and guaranteed the good roughness in processing aperture.
So, the drill gun of the utility model is in that the austenite small deep hole to be added the man-hour chip removal smooth, guaranteed the sharp of cutting edge and strengthened the intensity of blade, and realized good linearity and the roughness in processing aperture.
Claims (6)
1. one kind is used for the drill gun that austenitic stainless steel is processed, and it comprises drill gun body (2) and drill bit blade (3), and wherein drill bit blade (3) has blade guidance tape (4); It is characterized in that said drill bit blade is provided with chip-breaker and chip dividing groove, the degree of depth of wherein said chip-breaker is 0.5mm; Width is 2mm; The degree of depth of said chip dividing groove is 0.5mm, and width is 2mm, and the length of the blade guidance tape of said drill bit is 3-4 times of bit diameter.
2. drill gun as claimed in claim 1 is characterized in that, the length of the blade guidance tape of said drill bit is 3.5 times of bit diameter.
3. drill gun as claimed in claim 1 is characterized in that, it is the negative rib of leading of 0.5mm that said chip-breaker front portion is provided with width.
4. drill gun as claimed in claim 3 is characterized in that, the axial outside spacing of the axial centre line-spacing of said chip dividing groove is 2.75mm.
5. drill gun as claimed in claim 4 is characterized in that, the outer basil of said drill gun blade is that 20 ° and inner cutting angle are 15 °.
6. drill gun as claimed in claim 5 is characterized in that, the outer edge clearance angle of said drill gun blade is set to two backs corner structure, and wherein primary clearance is 15 °, and front clearance is 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120569908 CN202517092U (en) | 2011-12-31 | 2011-12-31 | Gun drill for austenitic stainless steel processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120569908 CN202517092U (en) | 2011-12-31 | 2011-12-31 | Gun drill for austenitic stainless steel processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202517092U true CN202517092U (en) | 2012-11-07 |
Family
ID=47100060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120569908 Expired - Fee Related CN202517092U (en) | 2011-12-31 | 2011-12-31 | Gun drill for austenitic stainless steel processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202517092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453509A (en) * | 2020-11-25 | 2021-03-09 | 深圳市蓝海永兴实业有限公司 | Drilling reamer tool with staggered blades for hole machining of composite material |
-
2011
- 2011-12-31 CN CN 201120569908 patent/CN202517092U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453509A (en) * | 2020-11-25 | 2021-03-09 | 深圳市蓝海永兴实业有限公司 | Drilling reamer tool with staggered blades for hole machining of composite material |
| CN112453509B (en) * | 2020-11-25 | 2021-08-06 | 深圳市蓝海永兴实业有限公司 | Drilling reamer tool with staggered blades for hole machining of composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103084629A (en) | Twist drill with segmented main cutting blades and asymmetric blade opening height | |
| CN202517092U (en) | Gun drill for austenitic stainless steel processing | |
| CN205129020U (en) | A internal cooling carbide drill bit for BTA | |
| CN207534016U (en) | Multi-functional compound step drill | |
| CN104816024A (en) | Reinforce edge twist drill | |
| CN202921976U (en) | Quick drill with chip distributing groove and chip breaking groove | |
| CN203356678U (en) | Twist drill with segmented main cutting blades and asymmetric blade opening height | |
| CN201552631U (en) | Four-blade four-helix solid center bit | |
| CN201320625Y (en) | Spiral drill reamer | |
| CN201693220U (en) | Annular drill cutter | |
| CN103551634A (en) | Straight-flute drill | |
| CN201086152Y (en) | Annular drill | |
| CN205129019U (en) | High speed bit | |
| CN204397070U (en) | The accurate reamer of ferritic stainless steel thin-wall part | |
| CN204770958U (en) | Tapering reamer | |
| CN209598274U (en) | A kind of deep hole machining bta deep hole drilling | |
| CN203018804U (en) | Steel plate drill with chamfering function | |
| CN103909299A (en) | Diamond bit | |
| CN207983561U (en) | A kind of square auger drill core | |
| CN203738091U (en) | Auger bit with annular blades | |
| CN205342026U (en) | Fluted drill in processing hole | |
| CN205254142U (en) | Finish boring hole sword | |
| CN204867567U (en) | Efficiency of work is improved quick chamfer specific drill bit of durable type | |
| CN201755681U (en) | Chip dividing drill used for processing holes on tube sheet in low-pressure heater of steam turbine | |
| CN202506878U (en) | Pointed end positioning twist drill |
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: 20121107 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |