CN202428076U - Mandrel correcting and tapping device - Google Patents
Mandrel correcting and tapping device Download PDFInfo
- Publication number
- CN202428076U CN202428076U CN2011205630432U CN201120563043U CN202428076U CN 202428076 U CN202428076 U CN 202428076U CN 2011205630432 U CN2011205630432 U CN 2011205630432U CN 201120563043 U CN201120563043 U CN 201120563043U CN 202428076 U CN202428076 U CN 202428076U
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- CN
- China
- Prior art keywords
- tapping
- positioning shaft
- screw
- cylinder
- correcting
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a mandrel correcting and tapping device, which comprises a connecting handle and a positioning shaft, wherein positioning shaft is provided with a cylinder which adapts to a bottom hole of a screw hole to be tapped; one end of the positioning shaft is provided with an inner cavity which is provided with an internal thread; one end of the connecting handle is connected with a machine tool; the other end of the connecting handle is provided with an external thread which is matched with the internal thread, and the tip of the end is provided with a center; and the center is positioned in the inner cavity. A method disclosed by the utility model comprises the following steps of: arranging: arranging the connecting handle and the positioning shaft on a main shaft of the machine tool; correcting: controlling the machine tool to convey a cylinder of the positioning shaft into the bottom hole of the screw hole to be tapped, and adjusting the angle of the cylinder to allow the cylinder to rotate freely in the bottom hole; and tapping: after correcting, unscrewing the positioning shaft, and tapping by replacing with a screw tap; or unscrewing the connecting handle and the positioning shaft, and tapping by replacing with a screw tap. When the device and method are in use, screw tapping is performed by matching with a ratchet (wrench), so that convenience is brought to operation, high efficiency is achieved, and the tapping verticality is high.
Description
Technical field
The utility model relates to a kind of mandrel and proofreaies and correct chasing bar.
Background technology
At present, a silk hole is on bore hole, to bore bottom outlet to unload the back of living in pincers worker place tapping on a lot of large-scale workpieces, and the perpendicularity of screw tap and bottom outlet is relatively poor during existing tapping method tapping, is difficult to guarantee the accuracy of thread requirement, influences operating efficiency.
The patent No. is 200920294042.5, and name is called " set tap certainly leads ", and the day for announcing is 2010.11.03, discloses a kind of set tap that leads certainly, comprises tap holder and wire cone, and wire cone front end and its coaxial line fixedly install the axis of guide.There is following deficiency in this product:
1. mandrel correcting part is long, will be not suitable for attacking blind hole; If too short, with the centering effect that does not produce.
2. only be applicable to the silk hole that processing is little, and be through hole, be not suitable for attacking obstructed hole.Because when tapping to the bottom of bottom outlet, it is dark to form effective silk, is tightened easily, frangible, causes scrapping of workpiece.
3. the said goods can't cooperate centering with junior machine such as universal brill, thus still big the processing of silk bore portions easily during inlet, cause part notch portion overproof (if the exported product tolerance when strict, can't be produced certified products).
4. experienced pincers worker all knows, when processing large diameter silk hole, and must be by top aiding support; And the said goods work the time also needs this product to do back work could to accomplish.
Summary of the invention
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art, providing a kind of mandrel to proofread and correct chasing bar.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of mandrel is proofreaied and correct chasing bar, comprises connection handle, locating shaft, and said locating shaft has the cylinder that adapts with the bottom outlet of waiting to attack screw, and an end of locating shaft is provided with the inner chamber that has internal thread; Said connection handle one end links to each other with lathe, and the other end is provided with the external screw thread that matches with said internal thread, and the end of this end be provided with top, this top inner chamber that is positioned at.
Said top be 60 ° top.Center hole in top and the screw tap matches.
The footpath is 0.02-0.08mm between said cylindrical diameter and bottom diameter.
The footpath is 0.05mm between said cylindrical diameter and bottom diameter.
Use mandrel and proofread and correct the tapping method of chasing bar, the steps include: (1) installation: on machine tool chief axis, install connection handle and locating shaft; (2) proofread and correct: the control lathe is treated the cylinder entering of locating shaft to attack in the bottom outlet of screw, adjusts cylindrical angle it can freely be turned round in bottom outlet; (3) tapping: after proofreading and correct well, screw off locating shaft, change screw tap and begin tapping; Perhaps screw off connection handle and locating shaft, change thread tapper and begin tapping.
Lathe can be for can be used in the equipment of tapping, if universal drilling machine (universal radial drilling machine) or numerically controlled lathe etc.
The beneficial effect of the utility model is, when using the tapping of these apparatus and method, if when adopting the screw tap tapping, cooperates ratchet (spanner) to use, and simple to operate, efficient is high, and the tapping perpendicularity is high.
This product uses regular tap need not buy their special type product specially.This product especially is fit to the large diameter blind hole of processing, silk hole.This product cooperates little lathe or universal brill will produce good silk hole precision.This tapping method has obtained U.S. Foster Wheeler company, the machinery expert's of Japanese Ishikawa island company approval.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of the utility model connecting axle and locating shaft released state;
Fig. 3 is the structural representation of screw tap.
1. connection handles wherein, 11. external screw threads, 12. is top, 2. locating shaft, 21. internal threads, 22. inner chambers, 3. screw tap, 31. center holes.
The specific embodiment
Through instantiation the utility model is further set forth below, should be noted that following explanation only is in order to explain the utility model, its content not to be limited.
Like Fig. 1, shown in Figure 2, a kind of mandrel is proofreaied and correct chasing bar, comprises connection handle 1, locating shaft 2, and said locating shaft 2 has the cylinder that adapts with the bottom outlet of waiting to attack screw, and an end of locating shaft 2 is provided with the inner chamber that has internal thread 21; Said connection handle 1 one ends link to each other with lathe, and the other end is provided with the external screw thread 11 that matches with said internal thread 21, and the end of this end is provided with toply 12, and this top 12 is positioned at inner chamber.
Said top 12 be 60 ° top.Top 12 with screw tap 3 in center holes 31 match.
The footpath is 0.02-0.08mm between said cylindrical diameter and bottom diameter.
The footpath is 0.05mm between said cylindrical diameter and bottom diameter.
Use mandrel and proofread and correct the tapping method of chasing bar, the steps include: (1) installation: on machine tool chief axis, install connection handle 1 and locating shaft 2; (2) proofread and correct: the control lathe is treated the cylinder entering of locating shaft 2 to attack in the bottom outlet of screw, adjusts cylindrical angle it can freely be turned round in bottom outlet; (3) tapping: after proofreading and correct well, screw off locating shaft 2, change screw tap 3 beginning tapping; Perhaps screw off connection handle 1 and locating shaft 2, change thread tapper and begin tapping.
Claims (4)
1. a mandrel is proofreaied and correct chasing bar, it is characterized in that, comprises connection handle, locating shaft, and said locating shaft has the cylinder that adapts with the bottom outlet of waiting to attack screw, and an end of locating shaft is provided with the inner chamber that has internal thread; Said connection handle one end links to each other with lathe, and the other end is provided with the external screw thread that matches with said internal thread, and the end of this end be provided with top, this top inner chamber that is positioned at.
2. device according to claim 1 is characterized in that, said top be 60 ° top.
3. device according to claim 1 is characterized in that, the footpath is 0.02-0.08mm between said cylindrical diameter and bottom diameter.
4. device according to claim 3 is characterized in that, the footpath is 0.05mm between said cylindrical diameter and bottom diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205630432U CN202428076U (en) | 2011-12-29 | 2011-12-29 | Mandrel correcting and tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205630432U CN202428076U (en) | 2011-12-29 | 2011-12-29 | Mandrel correcting and tapping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202428076U true CN202428076U (en) | 2012-09-12 |
Family
ID=46777551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205630432U Expired - Fee Related CN202428076U (en) | 2011-12-29 | 2011-12-29 | Mandrel correcting and tapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202428076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513620A (en) * | 2011-12-29 | 2012-06-27 | 济南重工股份有限公司 | Mandrel alignment tapping device and tapping method |
| CN110142469A (en) * | 2019-06-06 | 2019-08-20 | 安徽瑞丰精密机械有限公司 | A kind of screw thread correcting device and modification method |
-
2011
- 2011-12-29 CN CN2011205630432U patent/CN202428076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513620A (en) * | 2011-12-29 | 2012-06-27 | 济南重工股份有限公司 | Mandrel alignment tapping device and tapping method |
| CN110142469A (en) * | 2019-06-06 | 2019-08-20 | 安徽瑞丰精密机械有限公司 | A kind of screw thread correcting device and modification method |
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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: 20120912 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |