CN100408266C - Skip method for grinding interlocking tooth screw tap - Google Patents
Skip method for grinding interlocking tooth screw tap Download PDFInfo
- Publication number
- CN100408266C CN100408266C CNB2006100096279A CN200610009627A CN100408266C CN 100408266 C CN100408266 C CN 100408266C CN B2006100096279 A CNB2006100096279 A CN B2006100096279A CN 200610009627 A CN200610009627 A CN 200610009627A CN 100408266 C CN100408266 C CN 100408266C
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- CN
- China
- Prior art keywords
- tooth
- grinding
- screw tap
- tap
- sword
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- 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
A jump-over grinding method for machining the tooth-staggered screw tap features that the abrasive disc installed on the spiral grinding machine or relief grinding machine and with a tip angle between 50-60 deg can grinding the lateral surface of tooth in jump-over mode, that is, a tooth is jumped over between adjacent two grindings. When the screw tap is rotating by 360 deg, the abrasive disc moves forward by a spiral pitch.
Description
Technical field:
The present invention relates to a kind of skip method for grinding interlocking tooth screw tap in tap tool field.
Background technology:
Present all common standard screw tap factories, great majority are still made the screw taps of 60 ° of angle of thread structures, are continuing for these years use this shaping to send out the sealing cutting to attack and make the internal thread groove always.Along with technical development, the internal thread tapping often runs into the intensity height, and is sticking, blunt, waits difficult-to-machine material firmly, and regular tap not be competent at, process motionlessly, and the card awl is embraced awl, breaks to bore seriously; People have thought that a little ways as shortening the length of proofreading and correct toothed portion, reduce sword lobe width, grind off the jumping dental structure of a tooth etc. every a tooth, and effect is not remarkable.
Using for reference above the side set side set cutting principle of blade milling cutter and saw blade, to have made the staggered-tooth tap result of use remarkable, and cutting divides bits, arranges quiet smoothness, does not block, do not embrace, and continuous awl, moment of torsion is little, cuts briskly, improves three to five times service life.
Summary of the invention:
The object of the present invention is to provide a kind of grinding method that jumps over of making staggered-tooth tap.
Above-mentioned purpose realizes by following technical scheme:
Skip method for grinding interlocking tooth screw tap, utilize heart carrier with three-flute common standard screw tap, clamping is on screw grinder or gear milling lathe lathe centre, the emery wheel angle is less than 60 ° greater than 50 °, emery wheel aligns groove between tooth on any one sword lobe, screw tap whenever circles, emery wheel is walked a pitch, screw tap revolution 240 degree emery wheels will be skipped the side separately of two teeth of the both sides of groove between a tooth on the sword lobe grinding next one sword lobe, from the top cutting teeth of screw tap, the stock removal of feeding emery wheel, a grinding from the beginning to the end, the three-flute staggered-tooth tap grinds to be finished, and detects the grind off amount of screw tap tooth on middle footpath.
Skip method for grinding interlocking tooth screw tap, four fluted tap is 180 ° of screw tap revolutions, emery wheel jumps over the grinding of a sword lobe once, the side that a tooth is only ground in each grinding, clamping can grind off the side of the same side of all teeth on phase counter blade lobe d and two sword lobes of sword lobe f for the first time, the side of the opposite side on each tooth on grinding sword lobe e and the sword lobe g for the second time, four groove staggered-tooth taps are made in twice grinding, detect the grind off amount of screw tap tooth on middle footpath.
Not additional any device just grinds staggered-tooth tap on screw grinder or relief grinding lathe, and is simple, efficient and convenient.
Description of drawings:
Accompanying drawing 1 is the expanded view of staggered-tooth tap corresponding to rectangular coordinate system.
Accompanying drawing 2 is three-flute staggered-tooth tap tooth teeth patterning schematic diagrames on three sword lobes.
Accompanying drawing 3 is schematic diagrames of the teeth patterning of four groove staggered-tooth tap teeth on four sword lobes.
The specific embodiment:
Embodiment 1:
Skip method for grinding interlocking tooth screw tap, utilize heart carrier with three-flute common standard screw tap, clamping is on screw grinder or gear milling lathe lathe centre, the emery wheel angle is less than 60 ° greater than 50 °, emery wheel aligns groove between tooth on any one sword lobe, screw tap whenever circles, emery wheel is walked a pitch, screw tap revolution 240 degree emery wheels will be skipped the side separately of two teeth of the both sides of groove between a tooth on the sword lobe grinding next one sword lobe, from the top cutting teeth of screw tap, the stock removal of feeding emery wheel, a grinding from the beginning to the end, the three-flute staggered-tooth tap grinds to be finished, and detects the grind off amount of screw tap tooth on middle footpath.
Skip method for grinding interlocking tooth screw tap, four fluted tap is 180 ° of screw tap revolutions, emery wheel jumps over the grinding of a sword lobe once, the side that a tooth is only ground in each grinding, clamping can grind off the side of the same side of all teeth on phase counter blade lobe d and two sword lobes of sword lobe f for the first time, the side of the opposite side on each tooth on grinding sword lobe e and the sword lobe g for the second time, four groove staggered-tooth taps are made in twice grinding, detect the grind off amount of screw tap tooth on middle footpath.
In conjunction with the accompanying drawings 2 and accompanying drawing 3 analyze narration the invention process processes, the three-flute staggered-tooth tap spread geometry of each sword lobe upper teeth as shown in Figure 2 is: between both sides between a tooth are not ground as tooth 2 and tooth 5, between tooth 4 and the tooth 7 between adjacent two teeth in its both sides between groove such as tooth 1 and the tooth 4, groove between the tooth between tooth 7 and the tooth 10, all to grind off side separately of two teeth on both sides, from single tooth, first tooth has ground the right side, second tooth has ground the left side, hyperdontogeny has ground the right side, the 4th tooth has ground left side or the like, grinds the rule of going down successively to be: the odd number tooth all grinds the right side, and the even numbers tooth all grinds the left side, narrow down with regard to tooth like this, staggered about similar on the helix, the track that all teeth are crossed along spiral motion is still the thread groove of 60 ° of angle of threads.Four groove staggered-tooth taps each sword lobe upper teeth shape arranging situation as shown in Figure 3 are: all will grind off a part on the side in same direction at all each teeth on the sword lobe, what grind off as sword lobe d and sword lobe f is the right side of tooth, and what grind off on sword lobe e and the sword lobe g is the opposite side left side of tooth.
The structural analysis and the form of expression of tooth on the sword lobe by staggered-tooth tap have found the staggered-tooth tap method for grinding.
Claims (2)
1. skip method for grinding interlocking tooth screw tap, it is characterized in that: utilize heart carrier three-flute common standard screw tap, clamping is on screw grinder or gear milling lathe lathe centre, the emery wheel angle is less than 60 ° greater than 50 °, emery wheel aligns groove between tooth on any one sword lobe, screw tap whenever circles, emery wheel is walked a pitch, screw tap revolution 240 degree emery wheels will be skipped the side separately of two teeth of the both sides of groove between a tooth on the sword lobe grinding next one sword lobe, from the top cutting teeth of screw tap, the stock removal of feeding emery wheel, a grinding from the beginning to the end, the three-flute staggered-tooth tap grinds to be finished, and detects the grind off amount of screw tap tooth on middle footpath.
2. skip method for grinding interlocking tooth screw tap, it is characterized in that: four fluted tap is 180 ° of screw tap revolutions, emery wheel jumps over the grinding of a sword lobe once, the side that a tooth is only ground in each grinding, clamping can grind off the side of the same side of all teeth on phase counter blade lobe (d) and two sword lobes of sword lobe (f) for the first time, the side of the opposite side on each tooth on grinding sword lobe (e) and the sword lobe (g) for the second time, four groove staggered-tooth taps are made in twice grinding, detect the grind off amount of screw tap tooth on middle footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100096279A CN100408266C (en) | 2006-01-16 | 2006-01-16 | Skip method for grinding interlocking tooth screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100096279A CN100408266C (en) | 2006-01-16 | 2006-01-16 | Skip method for grinding interlocking tooth screw tap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101003121A CN101003121A (en) | 2007-07-25 |
| CN100408266C true CN100408266C (en) | 2008-08-06 |
Family
ID=38702619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100096279A Expired - Fee Related CN100408266C (en) | 2006-01-16 | 2006-01-16 | Skip method for grinding interlocking tooth screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100408266C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202253U (en) * | 1985-06-11 | 1986-06-11 | 刘海福 | Screw tap with offset teeth and single edge |
| CN2093709U (en) * | 1991-03-30 | 1992-01-22 | 衡阳市工具厂 | Helical chip dividing reaming tool |
| CN1077153A (en) * | 1992-04-07 | 1993-10-13 | 刘海福 | The processing method of staggered-tooth tap |
| CN2210057Y (en) * | 1994-09-05 | 1995-10-18 | 吕文富 | Arrangement for working tap of side set |
| CN1118296A (en) * | 1994-09-05 | 1996-03-13 | 吕文富 | Mechemic process for screw tap |
| US20060005374A1 (en) * | 2004-07-12 | 2006-01-12 | Helmut Glimpel | Tools and methods for finishing a previously created thread without cutting |
-
2006
- 2006-01-16 CN CNB2006100096279A patent/CN100408266C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202253U (en) * | 1985-06-11 | 1986-06-11 | 刘海福 | Screw tap with offset teeth and single edge |
| CN2093709U (en) * | 1991-03-30 | 1992-01-22 | 衡阳市工具厂 | Helical chip dividing reaming tool |
| CN1077153A (en) * | 1992-04-07 | 1993-10-13 | 刘海福 | The processing method of staggered-tooth tap |
| CN2210057Y (en) * | 1994-09-05 | 1995-10-18 | 吕文富 | Arrangement for working tap of side set |
| CN1118296A (en) * | 1994-09-05 | 1996-03-13 | 吕文富 | Mechemic process for screw tap |
| US20060005374A1 (en) * | 2004-07-12 | 2006-01-12 | Helmut Glimpel | Tools and methods for finishing a previously created thread without cutting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101003121A (en) | 2007-07-25 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20100219 |