CN101745704A - Radial drill device - Google Patents
Radial drill device Download PDFInfo
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- CN101745704A CN101745704A CN 200910250989 CN200910250989A CN101745704A CN 101745704 A CN101745704 A CN 101745704A CN 200910250989 CN200910250989 CN 200910250989 CN 200910250989 A CN200910250989 A CN 200910250989A CN 101745704 A CN101745704 A CN 101745704A
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- tap
- screw tap
- drill device
- radial drill
- screw
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Abstract
The invention discloses a radial drill device which comprises a tapping shank connected with the principal shaft of the radial drill, a tap chuck connected with the tapping shank in self-centering clamping manner, a tap and a tap guide device. The tap mainly consists of a tap clamping part, a tap guide rod and a tap cutting part; the tap clamping part is arranged inside the tap chuck in a self-centering clamping manner; the tap guide rod is arranged between the tap clamping part and the tap cutting part; and the diameter of the tap guide rod is bigger than the nominal diameter of the tap cutting part. The tap guide device is fastened on a bottom hole to guide and position the tap and is provided with a through hole which is in clearance fit with the tap guide rod. The tapping shank and the tap chuck are connected in the self-centering clamping mode and the tap chuck and the tap clamping part are also connected in the self-centering clamping mode, so the rotational run-out tolerance of the tap can be reduced, and through the combined actions of the tap guide rod and the tap guide device, swaying of the tap per se can be reduced.
Description
Technical field
The present invention relates to the radial drilling machine technical field, relate in particular to a kind of radial drill device.
Background technology
Being threaded is fastening and the usual way that is connected between the different parts, adopts radial drilling machine to come machining screw more.
Existing radial drill mainly is made up of tapping handle of a knife, tap chuck and screw tap, the tapping handle of a knife is connected with the main shaft of radial drilling machine by the transition adapter sleeve, adopt the mode of matched in clearance to be connected between tapping handle of a knife and the tap chuck, the clamping part of screw tap is arranged on tap chuck inside in the mode of matched in clearance equally, the cutting portion of screw tap is provided with straight trough longitudinally, forms cutting edge and chip area with this.When machining screw, the main shaft of radial drilling machine drives rotation of tapping handle of a knife and length feed, and the tapping handle of a knife drives screw tap by tap chuck and is rotated and length feed, and the cutting portion of screw tap front end processes screw thread at the inwall of bottom outlet.
In the process of machining screw, because between tapping handle of a knife and the tap chuck, and what adopt between tap chuck and the screw tap is matched in clearance, there is fit clearance, this gap makes screw tap bigger rotation run-out tolerance occur in the process of rotation, length feed, can cause the problem that the screw thread hole shape is bad, screw thread rots tooth and screw thread roughness difference; The guiding of screw tap and location are provided by bottom outlet, in the process of machining screw, especially process in the process of first few ridge, self rocking can appear in screw tap under the effect of cutting force, can not keep vertical with the screw thread plane, just thread center's line and bottom outlet center line are inconsistent, can cause the pitch diameter of thread overproof.In addition, the chip area that is provided with on the screw tap is a straight trough, be unfavorable for that in the process of screw tap rotation smear metal discharges, the smear metal meeting that can not discharge smoothly be stored in chip area and the screw thread that processed between, smear metal is stored in the generation that chip area can cause built-up edge, also can cause the wearing and tearing of screw tap cutting edge, make the durability of screw tap reduce, smear metal is stored between the screw thread that has processed, and smear metal is moved along with the rotation of screw tap, feeding, can scratch thread surface, influence the precision and the roughness of screw thread.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of radial drill device, the screw thread hole shape that processes is good, roughness is high, and pitch diameter of thread error is little.
For achieving the above object, the invention provides following technical scheme:
A kind of radial drill device comprises:
The tapping handle of a knife that is connected with the main shaft of radial drilling machine;
The tap chuck that is connected in the self-centering clamping mode with described tapping handle of a knife;
The main screw tap of forming by screw tap clamping part, screw tap guide tang and screw tap cutting portion, described screw tap clamping part is arranged on described tap chuck inside in the self-centering clamping mode, described screw tap guide tang is between screw tap clamping part and screw tap cutting portion, and its diameter is greater than the nominal diameter of described screw tap cutting portion;
Be fastened on the screw tap guider that on the bottom outlet described screw tap is led, locatees, described guider is provided with through hole, and described through hole and described guide tang are matched in clearance.
Preferably, described screw tap guider is bushing plate and fairlead, and described bushing plate is fastened on the bottom outlet, and described fairlead is arranged on the described bushing plate in the mode of matched in clearance.
Preferably, described screw tap guide tang is provided with chip pocket longitudinally.
Preferably, the seamed edge of described chip pocket is a smooth curved surface.
Preferably, the two ends of described screw tap guide tang are provided with the guiding awl.
Preferably, the inclination angle of described guiding awl is 15 °, and its hypotenuse length is 10 millimeters.
Preferably, the chip area on the described screw tap cutting portion is a helical flute.
Preferably, the anglec of rotation of described helical flute is 8 °～10 °.
Preferably, the length of described screw tap cutting portion is greater than the length of bottom outlet.
Preferably, described tapping handle of a knife is No. 5 handles of Mohs.
This shows, beneficial effect of the present invention is: between tapping handle of a knife and the tap chuck, and all adopt the self-centering clamping mode to fix between tap chuck and the screw tap clamping part, there is not fit clearance two junctions, the three is fixing as a whole, main shaft at radial drilling machine drives in the process of tapping handle of a knife, tap chuck and screw tap rotation, length feed, reduces the rotation run-out tolerance of screw tap; The screw tap guider is fastened on the bottom outlet of wanting machining screw, the through hole of screw tap guide tang and screw tap guider adopts matched in clearance, in the process of screw tap tapping, the screw tap guide tang is in all the time or part is in the through hole of screw tap guider, both are used screw tap are led and locatees, reduced self rocking of screw tap, the diameter of screw tap guide tang is greater than the nominal diameter of screw tap, cutting portion at machining screw process plug tap can not come in contact, rub with the screw tap guider, has avoided the wearing and tearing of screw tap guider.Radial drill device disclosed by the invention can reduce the rotation run-out tolerance of screw tap in the machining screw process and self rock, and makes that the screw thread hole shape that processes is good, roughness is high, pitch diameter of thread error is little.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention, to do simple introduction to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the disclosed a kind of radial drill device of first embodiment of the invention;
Fig. 2 is the structural representation of the disclosed a kind of radial drill device of second embodiment of the invention;
Fig. 3 is the structural representation of the disclosed a kind of radial drill device of third embodiment of the invention;
Fig. 4 is the structural representation of the disclosed a kind of radial drill device of fourth embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making under the creative work prerequisite, and the every other embodiment that is obtained belongs to protection domain of the present invention.
The utility model discloses a kind of radial drill device, can process that hole shape is good, roughness is high, the screw thread that pitch diameter of thread error is little.
Fig. 1 shows the structure of the disclosed a kind of radial drill device of first embodiment of the invention, comprising: tapping handle of a knife 1, tap chuck 2, screw tap 3 and screw tap guider 4.
One end of tapping handle of a knife 1 is connected with the main shaft (not shown) of radial drilling machine, tap chuck 2 is connected the other end of tapping handle of a knife 1 in the self-centering clamping mode, screw tap 3 comprises screw tap clamping part 31, screw tap guide tang 32 and screw tap cutting portion 33, its plug tap clamping part 31 is arranged on the inside of tap chuck 2 with the self-centering method of clamping, screw tap guide tang 32 is between screw tap clamping part 31 and screw tap cutting portion 33, its diameter is greater than the nominal diameter (being the maximum gauge of screw thread on the screw tap cutting portion 33) of screw tap 3, screw tap guider 4 is fastened on the bottom outlet 5, screw tap guider 4 is provided with through hole, screw tap guide tang 32 is a matched in clearance with this through hole, its fit clearance is 0.01 millimeter～0.02 millimeter, in the process of screw tap 3 machining screw, can lead and locate, can prevent that screw tap 3 from self rocking for screw tap 3.
In above-mentioned radial drill device, between tapping handle of a knife 1 and the tap chuck 2, and all adopt the self-centering method of clamping to realize being connected between tap chuck 2 and the screw tap clamping part 31, and there is not fit clearance in the junction, effectively avoided because the rotation run-out tolerance of the screw tap 3 that cause in the gap; Screw tap guider 4 is fastened on the bottom outlet, screw tap guide tang 32 is a matched in clearance with the through hole of screw tap guider 4, in the process of screw tap 3 machining screw, screw tap guide tang 32 is in all the time or part is in the through hole of screw tap guider 4, the effect that can provide guiding and location for the rotation and the length feed of screw tap 3, guarantee that thread center's line is consistent with the bottom outlet center line, reduce the error of the pitch diameter of thread, the diameter of screw tap guide tang 32 is greater than the nominal diameter of screw tap 3, in the process of machining screw, the cutting portion 33 of screw tap can not come in contact with screw tap guider 4, can effectively avoid the wearing and tearing of screw tap guider 4, improves its service life.
Fig. 2 shows the structure of the disclosed a kind of radial drill device of second embodiment of the invention, screw tap guider 4 is made up of bushing plate 41 and fairlead 42, bushing plate 41 is fastened on the bottom outlet 5, fairlead 42 is arranged in the through hole of bushing plate 41 in the mode of matched in clearance, the through hole of fairlead 42 and screw tap guide tang 32 matched in clearance realize guiding and location to screw tap 3.Bushing plate 41 and fairlead 42 adopt split design, its guide-localization better effects if.
Fig. 3 shows the structure of the disclosed a kind of radial drill device of third embodiment of the invention, chip pocket 301 is set on screw tap guide tang 32, chip pocket 301 is vertically to be provided with, connect whole screw tap guide tang 32, be that length is consistent with screw tap guide tang 32, in the process of machining screw, smear metal liquid can be injected from chip pocket 301, and chip pocket 301 can improve the fitness of 42 of screw tap guide tang 32 and fairleads.The seamed edge of chip pocket 301 is set to smooth curved surface in force, and the iron filings that can avoid being stored in the chip pocket 301 are pulled fairlead 42.
Fig. 4 shows the structure of the disclosed a kind of radial drill device of fourth embodiment of the invention, and the chip area on the screw tap cutting portion 33 is set to helical flute 303, and its anglec of rotation is 8 °～10 °.When the machining screw through hole, to select for use left-handedly to helical flute, it can produce a downward thrust to smear metal in tapping process, and smear metal is dropped from bottom outlet under the effect of this thrust; When the machining screw blind hole, select for use dextrorotation to helical flute, in its tapping process, produce the pulling force that the cutter end is pulled out of going into of smear metal from blind hole.Helical flute 303 can improve the smoothness of chip removal when machining screw through hole or tapped blind hole, can freely not produce built-up edge because of chip removal, the surface roughness and the precision of screw thread have been improved, and in the process of tapping, need not screw tap 3 be withdrawed from from bottom outlet in order to clear up smear metal, improved working (machining) efficiency.
After the chip area of screw tap cutting portion 33 is set to helical form, the screw tap cutting edge is also in spiral distribution, and total cutting force of screw tap cutting edge is the component state, and the cutting force that therefore single cutting edge bore reduces, and then reduced the wear intensity of screw tap, improved the durability of screw tap.
In addition, it is pointed out that the length that the length of screw tap cutting portion 33 should be provided with greater than the bottom outlet 5 of wanting machining screw.Because the diameter of screw tap guide tang 32 is greater than the nominal diameter of screw tap 3, screw tap guide tang 32 can not enter in the manufactured screw thread, if the length of screw tap cutting portion 33 is less than the length of bottom outlet 5, then can only the machining screw blind hole, and can not the machining screw through hole.
Tapping handle of a knife 1 is selected No. 5 handles of Mohs for use, and No. 5 handles of Mohs can directly be connected with the main shaft of radial drilling machine, has avoided cooperating the generation of accumulated error.If select the tapping handle of a knife of other models for use, need be connected with the main shaft of radial drilling machine by the transition adapter sleeve, can produce the cooperation accumulated error, further aggravate the rotation error of radial drill device.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a radial drill device is characterized in that, comprising:
The tapping handle of a knife that is connected with the main shaft of radial drilling machine;
The tap chuck that is connected in the self-centering clamping mode with described tapping handle of a knife;
The main screw tap of forming by screw tap clamping part, screw tap guide tang and screw tap cutting portion, described screw tap clamping part is arranged on described tap chuck inside in the self-centering clamping mode, described screw tap guide tang is between screw tap clamping part and screw tap cutting portion, and its diameter is greater than the nominal diameter of described screw tap cutting portion;
Be fastened on the screw tap guider that on the bottom outlet described screw tap is led, locatees, described guider is provided with through hole, and described guide tang and described through hole are matched in clearance.
2. radial drill device according to claim 1 is characterized in that, described screw tap guider is bushing plate and fairlead, and described bushing plate is fastened on the bottom outlet, and described fairlead is arranged on the described bushing plate in the mode of matched in clearance.
3. radial drill device according to claim 1 is characterized in that, described screw tap guide tang is provided with chip pocket longitudinally.
4. radial drill device according to claim 3 is characterized in that, the seamed edge of described chip pocket is a smooth curved surface.
5. radial drill device according to claim 1 is characterized in that, the two ends of described screw tap guide tang are provided with the guiding awl.
6. radial drill device according to claim 5 is characterized in that, the inclination angle of described guiding awl is 15 °, and its hypotenuse length is 10 millimeters.
7. radial drill device according to claim 1 is characterized in that, the chip area on the described screw tap cutting portion is a helical flute.
8. radial drill device according to claim 7 is characterized in that, the anglec of rotation of described helical flute is 8 °～10 °.
9. radial drill device according to claim 1 is characterized in that the length of described screw tap cutting portion is greater than the length of bottom outlet.
10. radial drill device according to claim 1 is characterized in that, described tapping handle of a knife is No. 5 handles of Mohs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910250989 CN101745704B (en) | 2009-12-21 | 2009-12-21 | Radial drill device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910250989 CN101745704B (en) | 2009-12-21 | 2009-12-21 | Radial drill device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745704A true CN101745704A (en) | 2010-06-23 |
| CN101745704B CN101745704B (en) | 2013-07-03 |
Family
ID=42473673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910250989 Expired - Fee Related CN101745704B (en) | 2009-12-21 | 2009-12-21 | Radial drill device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745704B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330008A (en) * | 2014-11-24 | 2015-02-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Device and method for measuring dimension of rocker arm combination part |
| CN113210755A (en) * | 2021-05-10 | 2021-08-06 | 上海阿为特精密机械股份有限公司 | Tapping assembly and tapping method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE519067C2 (en) * | 2001-05-22 | 2003-01-07 | Sandvik Ab | Threaded pin with lobe-shaped cross section and thread relaxation section |
| DE10231252A1 (en) * | 2002-07-11 | 2004-01-29 | Helmut Ginzinger | Guide top for centring and guiding a drill or other tool has guide channel for inserting tool and fixing element with tapering bearing faces underneath to fit onto surface of workpiece being machined |
| CN101306483B (en) * | 2008-07-07 | 2010-06-02 | 南车戚墅堰机车有限公司 | Thread chasing bar |
| CN201283458Y (en) * | 2008-10-06 | 2009-08-05 | 中冶宝钢技术服务有限公司 | Tapping guider |
| CN101537504B (en) * | 2009-03-31 | 2010-11-03 | 无锡桥联风电科技有限公司 | Tap chuck for mechanical processing |
-
2009
- 2009-12-21 CN CN 200910250989 patent/CN101745704B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330008A (en) * | 2014-11-24 | 2015-02-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Device and method for measuring dimension of rocker arm combination part |
| CN104330008B (en) * | 2014-11-24 | 2016-08-24 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of rocking arm set component dimension measuring device and measuring method |
| CN113210755A (en) * | 2021-05-10 | 2021-08-06 | 上海阿为特精密机械股份有限公司 | Tapping assembly and tapping method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101745704B (en) | 2013-07-03 |
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Legal Events
| Date | Code | Title | Description |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING GEARBOX + MACHINERY CO., LTD. Effective date: 20150506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150506 Address after: 402263 Jiangjin Town, Chongqing City, the town of East Industrial Zone Patentee after: Chongqing Gearbox Co., Ltd. Patentee after: CHONGQING GEARBOX & MACHINERY CO., LTD. Address before: 211 box 402263, Dongfanghong Industrial Zone, Jiangjin District, Chongqing Patentee before: Chongqing Gearbox Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20181221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |