CN201684996U - Right spiral groove screw tap - Google Patents
Right spiral groove screw tap Download PDFInfo
- Publication number
- CN201684996U CN201684996U CN2010201732485U CN201020173248U CN201684996U CN 201684996 U CN201684996 U CN 201684996U CN 2010201732485 U CN2010201732485 U CN 2010201732485U CN 201020173248 U CN201020173248 U CN 201020173248U CN 201684996 U CN201684996 U CN 201684996U
- Authority
- CN
- China
- Prior art keywords
- cutting
- cone
- screw tap
- cutting cone
- tap
- 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 - Lifetime
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
一种右螺旋槽丝锥，涉及螺纹工具设计制造技术领域，特别是涉及一种右螺旋槽丝锥。本实用新型是为了解决现有的螺旋槽丝锥加工不通孔螺纹时，切屑积聚在孔底部，易造成螺纹乱扣或刀具折断的问题。本实用新型中切削锥体与尾柄轴向固接，切削锥体由切削部分、校准部分和倒锥部分组成，切削锥体的外壁均布有四个右螺旋槽，每个螺旋槽均从切削锥体的一端延伸至另一端，螺旋槽的旋角α为30°～40°。本实用新型适用于加工盲孔、通孔或断续表面螺纹孔。
A right-hand spiral flute tap relates to the technical field of thread tool design and manufacture, in particular to a right-hand spiral flute tap. The utility model aims to solve the problem that chips are accumulated at the bottom of the hole when the existing spiral fluted tap is used to process the thread of the hole, which may easily cause the screw thread to be threaded indiscriminately or the tool to be broken. In the utility model, the cutting cone is axially fixed to the tail handle, and the cutting cone is composed of a cutting part, a calibration part and an inverted cone part. Four right-hand spiral grooves are evenly distributed on the outer wall of the cutting cone, and each spiral groove One end of the cutting cone extends to the other end, and the rotation angle α of the spiral groove is 30°-40°. The utility model is suitable for processing blind holes, through holes or intermittent surface threaded holes.
Description
Technical field
The utility model relates to threading tool design and manufacturing technology field, particularly relates to a kind of right-hand screw groove screw tap.
Background technology
In the hole processing technology, commonly used is the straight trough screw tap, but the straight trough screw tap produces short flow chip when thread mill drilling, and smear metal usually is squeezed in screw tap and between the processing screw hole surface, reduces the screw machined surface quality and cause the screw tap tipping.Patent No. ZL 200920067692.6, Granted publication CN 201350532Y, patent name is a kind of spiral fluted tap of chip removal down, and it is smooth and easy that tapping process goes out to consider to be worth doing, and screw tap is frangibility not, but the spiral fluted tap of following chip removal also has its shortcoming, the one, it can only process through hole whorl, and for the blind hole screw thread, smear metal accumulates in the bottom, hole when being worked into thread root, easily cause random button of screw thread or cutter to fracture, the 2nd, resistance to cutting is bigger.
Summary of the invention
The purpose of this utility model is when solving existing spiral fluted tap processing blind hole screw thread, and smear metal accumulates in the bottom, hole, easily causes the disorderly problem that fractures of button or cutter of screw thread, and then a kind of right-hand screw groove screw tap is provided.
The technical solution of the utility model is: the utility model comprises cutting cone and caudal peduncle, described cutting cone and caudal peduncle are affixed vertically, described cutting cone partly is made up of cutting tip, calibrated section and back taper, cutting tip, calibrated section and back taper part fix as one successively, the outer wall of cutting cone is evenly equipped with four right-hand screw grooves, each helicla flute all extends to the other end from an end of cutting cone, and each spiral fluted swing angle is 30 °～40 °.
The utlity model has following beneficial effect: discharge the strip smear metal during right hand helix groove screw tap processing screw hole of the present utility model, but processing blind hole, through hole or interrupted thread surface hole, chip-flowing is controlled easily, chip removal is smooth, can reduce the tapping moment of torsion, reduce resistance to cutting, stable cutting, tapping quality are good, have improved the screw surface quality, have improved the service life and the working (machining) efficiency of screw tap.
Description of drawings
Fig. 1 is a designs simplification schematic diagram of the present utility model; Fig. 2 is a flute profile enlarged drawing of the present utility model; Fig. 3 is that the B of Fig. 1 is to view.
The specific embodiment
The specific embodiment one: a kind of right-hand screw groove screw tap that present embodiment is described in conjunction with Fig. 1 and Fig. 2, it comprises cutting cone 1 and caudal peduncle 2, described cutting cone 1 is affixed vertically with caudal peduncle 2, described cutting cone 1 is made up of cutting tip 1-1, calibrated section 1-2 and back taper part 1-3, cutting tip 1-1, calibrated section 1-2 and back taper part 1-3 fix as one successively, the outer wall of cutting cone 1 is evenly equipped with four right-hand screw grooves, each helicla flute all extends to the other end, each spiral fluted swing angle from an end of cutting cone 1
αIt is 30 °～40 °.What the right-hand screw groove was discharged be the strip smear metal, and upwards discharge of smear metal is suitable for processing blind hole during tapping, and four helicla flutes are the chipping allowance of distributing auger groove screw tap reasonably.
The specific embodiment two: a kind of right-hand screw groove screw tap of present embodiment, the spiral fluted swing angle of described cutting cone 1 are described in conjunction with Fig. 1, Fig. 2 and Fig. 3
αIt is 35 °.The cutting anterior angle
φ is10 °, relief angle is the relief grinding relief angle, and the relief grinding amount is 0.05mm.The screw tap of above-mentioned parameter can make it have good intensity, prolong cutter life, and cutting effect is splendid, and chip removal is smooth and easy, and four strip smear metals of generation are got rid of continuously, and the screwed hole of workpiece can obtain favorable surface quality.Other compositions of present embodiment are identical with the specific embodiment one with annexation.
The specific embodiment three: a kind of right-hand screw groove screw tap that present embodiment is described in conjunction with Fig. 1 and Fig. 2, described cutting tip 1-1 be by the working end end face to the taper shape of calibrated section 1-2 link flaring, the length of cutting tip 1-1 is 2.5 times of pitch d, the cutting angle
βBe 14 ° 4 ' 46 ", described calibrated section 1-2 is a cylinder, and the length of calibrated section 1-2 is 3 times of pitch d, and the back taper amount of back taper part 1-3 is 0.05/100.Back taper part 1-3 play the guiding role, and can reduce resistance to cutting, is beneficial to feed and withdrawing.The cylinder of calibrated section 1-2 can guarantee the screw machining accuracy, the length of cutting tip 1-1 selects 2.5 times of pitch to make this cutter promptly have good machinability, can satisfy the screw thread processing of blind hole again, after calibrating accurately by calibrated section 1-2 again after the cutting tip 1-1 processing, make screw obtain well processed surface and dimensional accuracy.Other compositions of present embodiment are identical with the specific embodiment one or two with annexation.
The specific embodiment four: a kind of right-hand screw groove screw tap of present embodiment, the core diameters of described cutting tip 1-1 are described in conjunction with Fig. 1, Fig. 2 and Fig. 3
φ1 is 18mm, end diameter
φ2 is 32.408mm, and cutting tip 1-1 spiral fluted first radius R 1 is 5.85mm, and second radius R 2 is 10.4mm.The cylindrical of caudal peduncle 2 is connected with tap holder, and square tail is used to transmit moment of torsion.Other compositions of present embodiment are identical with the specific embodiment one, two or three with annexation.
Operation principle of the present utility model is: the utility model is a tapered formula, right hand helix groove structure, during tapping, draw the screwed hole position line earlier, the good thread Pilot hole of drilling again, right-hand screw groove screw tap keeps vertical with working face, screw tap end (less than the screwed hole bottom diameter) introduced in the bottom outlet, along screwed hole axis direction swivel feeding, the strip smear metal is discharged outside the screwed hole along four helicla flutes continuously, lubricating oil in addition during tapping, better effects if, under the situation that does not increase cutting load, one finishes tapping work to cutter smoothly with screwed hole.
Claims (4)
1. right-hand screw groove screw tap, it comprises cutting cone (1) and caudal peduncle (2), described cutting cone (1) is affixed vertically with caudal peduncle (2), it is characterized in that: described cutting cone (1) is made up of cutting tip (1-1), calibrated section (1-2) and back taper part (1-3), cutting tip (1-1), calibrated section (1-2) and back taper part (1-3) fix as one successively, the outer wall of cutting cone (1) is evenly equipped with four right-hand screw grooves, each helicla flute all extends to the other end from an end of cutting cone (1), each spiral fluted swing angle (
α) be 30 °～40 °.
2. a kind of right-hand screw groove screw tap according to claim 1 is characterized in that: the spiral fluted swing angle of described cutting cone (1) (
α) be 35 °.
3. a kind of right-hand screw groove screw tap according to claim 1 and 2, it is characterized in that: described cutting tip (1-1) for by the working end end face to the taper shape of calibrated section (1-2) link flaring, the length of cutting tip (1-1) is 2.5 times of pitch (d), the cutting angle (
β) be 14 ° 4 ' 46 ", described calibrated section (1-2) is a cylinder, and the length of calibrated section (1-2) is 3 times of pitch (d), and the back taper amount of back taper part (1-3) is 0.05/100.
4. a kind of right-hand screw groove screw tap according to claim 3 is characterized in that: the core diameters of described cutting tip (1-1) (
φ1) be 18mm, end diameter (
φ2) be 32.408mm, cutting tip (1-1) spiral fluted first radius (R1) is 5.85mm, and second radius (R2) is 10.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201732485U CN201684996U (en) | 2010-04-28 | 2010-04-28 | Right spiral groove screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201732485U CN201684996U (en) | 2010-04-28 | 2010-04-28 | Right spiral groove screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684996U true CN201684996U (en) | 2010-12-29 |
Family
ID=43373286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201732485U Expired - Lifetime CN201684996U (en) | 2010-04-28 | 2010-04-28 | Right spiral groove screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470665A (en) * | 2012-07-17 | 2015-03-25 | Osg株式会社 | Spiral tap and manufacturing method therefor |
-
2010
- 2010-04-28 CN CN2010201732485U patent/CN201684996U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470665A (en) * | 2012-07-17 | 2015-03-25 | Osg株式会社 | Spiral tap and manufacturing method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203830815U (en) | Spiral inner-cooling end milling cutter | |
| CN202539643U (en) | Combined drilling and reaming tool special for machining titanium alloy | |
| CN201115890Y (en) | Improved round die | |
| CN201644880U (en) | Spiral groove taper countersink drill | |
| CN103521843B (en) | Deep hole reverse drawing reamer | |
| CN201684996U (en) | Right spiral groove screw tap | |
| JP2008272856A (en) | Spiral tap | |
| TW201132864A (en) | Tail-drilling screw and forming processing method thereof | |
| CN201333577Y (en) | Round die threaded cutter | |
| CN202147059U (en) | Spiral groove taper reamer | |
| CN205237249U (en) | Inclined to one side viscidity metal material product blind hole tapping screw tap | |
| CN204486956U (en) | Spiral interrupted thread tap | |
| CN214721233U (en) | Combined type screw tap | |
| CN201253719Y (en) | Heavy cutting tap | |
| CN211330862U (en) | Sixty spiral grooves machining device for long cylinder parts | |
| CN201350532Y (en) | Spiral flute tap with lower chip discharge function | |
| CN208787695U (en) | a combined tap | |
| CN209110249U (en) | Hard alloy forms gouge bit | |
| CN201483102U (en) | Screw tap for processing through threaded holes on difficult-to-process material | |
| CN215431917U (en) | Screw tap | |
| CN216578375U (en) | Cold forging woodworking drill bit | |
| CN216227397U (en) | Conical tap | |
| CN209936047U (en) | Deep hole spiral tap | |
| CN203875436U (en) | TiN coating groove-less extruding tap | |
| CN202726217U (en) | Machine screw tap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
|
| CX01 | Expiry of patent term |