CN87203017U - Tapping device for bench drill - Google Patents
Tapping device for bench drill Download PDFInfo
- Publication number
- CN87203017U CN87203017U CN 87203017 CN87203017U CN87203017U CN 87203017 U CN87203017 U CN 87203017U CN 87203017 CN87203017 CN 87203017 CN 87203017 U CN87203017 U CN 87203017U CN 87203017 U CN87203017 U CN 87203017U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bench drill
- transmission mechanism
- utility
- model
- 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.)
- Withdrawn
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- Drilling And Boring (AREA)
Abstract
The utility model belongs to a mechanical device, and is applied to a bench type drilling machine. The bench type drilling machine is provided with the mechanical device, which can tap the internal thread. The utility model is characterized in that the transmission mechanism comprises a speed increase transmission mechanism and a speed reduction transmission mechanism; the torque of the main shaft is transferred at the mode of the friction; when in tapping, the tap slowly enters the workpiece; when the tapping is finished, the tap quickly exits from the workpiece, and the main shaft is immediately stopped to rotate. The mechanical device can expand the application of the bench type drilling machine, and has good mechanical property. The utility model has the advantages of simple structure and easy fabrication.
Description
The utility model belongs to a kind of mechanical device, is applicable to bench drill, and bench drill is installed it can attack the system internal thread.
More existing bench drills all can only be holed and can not be attacked the system screw thread, and purposes is subject to certain restrictions.
The purpose of this utility model just is to provide that a kind of to be convenient to the matching used simple and mechanical device of bench drill be thread tapper, and bench drill is installed it just can attack the system internal thread.
The purpose of this utility model is achieved in that it comprises support, housing, is installed on the transmission mechanism in the housing and drives the main shaft of screw tap, and particularly: transmission mechanism comprises and slowing down and reverse speed booster driving mechanism that the main shaft torque is transmitted with friction mode.It is installed in the bench drill drilling rod and puts, and transmission mechanism is directly driven by drill press spindle, and during work-piece tapping, the thread tapper main shaft is moved in reduction gearing mechanism, can make the slow tapping of screw tap, because the torque of thread tapper main shaft is the friction transmission, screw tap is frangibility not again; Tapping is finished, and then speed booster driving mechanism drives thread tapper main shaft backward rotation, makes screw tap withdraw from workpiece rapidly.
Below in conjunction with example explanation the utility model.
Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.
Fig. 2 is the profile of Fig. 1.
1,2 describe concrete structure of the present utility model and working condition in detail with reference to the accompanying drawings.
With reference to figure 1, the utility model comprises support 1, shell 14, be installed on transmission mechanism in the shell 14, the main shaft 11 of drill chuck 15 can be installed; Transmission mechanism is: realize to slow down, speedup two overlap epicyclic trains by sun gear 2 and several planetary gears 3 with by what sun gear 10 and several planetary gears 8 were formed respectively, be transmitted to the ring gear 4,7 that main shaft 11 is provided with respectively with friction mode, internal tooth drive plate 5, frictional disk 6,9, friction pulley 12 for realizing that deceleration, speedup are rotated; Friction pulley 12 and main shaft 11 are fixing, to drive main shaft 11.With reference to figure 2, support 1 can be to regulate the collar 17 of degree of tightness with bolt 16, according to the also detachable opening sleeve 18 of drilling machine specification.Installation drill chuck 15 and screw tap can use on the thread tapper main shaft 11.Working condition is: support 1 is enclosed within the drilling machine drilling rod puts (drill chuck will be pulled down), and fastening with bolt 16, allow drill press spindle awl end insert sun gear 2 simultaneously, promptly finished the thread tapper installation.Start drilling machine, then drill press spindle drive sun gear 2 reaches to planetary gear 3, and ring gear 4 and 5 decelerations of internal tooth drive plate are rotated then, also also rotation synchronously thereupon of ring gear 7 of frictional disk 6, drive planetary gear 8 and sun gear 10 then, make the frictional disk 9 speedup reverse rotations synchronous with sun gear 10.During tapping, screw tap touches workpiece, and then friction pulley 12 relies on frictional disk 6 and rotates so be subjected to frictional force thereupon and drives main shaft 11, so screw tap slowly enters workpiece.Tapping is finished, and stirs the bench drill handle, then borrows and attacks the workpiece internal thread pulling force of making, and friction pulley 12 breaks away from frictional disk 6 and is close to frictional disk 9, and is moved in frictional disk 9 drive main shafts 11 reverse speedups and rotate, and makes screw tap withdraw from workpiece rapidly.Preferably on the frictional disk 9 stage clip 13 is installed, after screw tap withdrawed from workpiece, the little jack-up friction pulley 12 of its meeting made main shaft 11 stall at once, guarantees work safety like this.
Housing parts of the present utility model can adopt aluminum alloy materials, and is in light weight, the intensity height; Ring gear 4,7 can adopt nylon material, is convenient to injection molded, produces in batches; Friction pulley 12 also should adopt nylon material, and the time spent noise is little, and is wear-resistant.
The utlity model has following advantage:
1, increases the purposes of bench drill: make bench drill can attack internal thread processed.
2, simple in structure, easily manufactured: its main shaft, planetary gear, sun gear etc. all can adopt standard module to manufacture and design, and other part manufacturing is also convenient; Planetary gear, ring gear etc. all can exchange, and have reduced the part kind; The installation of part does not need complicated technology.
3, good mechanical property: the friction pulley transmission is adopted in the main shaft torque, is difficult for breaking screw tap, and friction pulley employing nylon material, and noiselessness is wear-resistant.
Claims (2)
1, a kind of mechanical device is the bench drill thread tapper, be applicable to bench drill, bench drill is installed it can attack the system internal thread, comprise support 1, housing 14, be installed on transmission mechanism, main shaft 11 in the housing 14, it is characterized in that: transmission mechanism comprises successively the epicyclic train of being made up of sun gear 2 and several planetary gears 3 that meshes, connects, ring gear 4, internal tooth drive plate 5, frictional disk 6, ring gear 7, by epicyclic train, frictional disk 9 that sun gear 10 and several planetary gears 8 are formed, be positioned at 6,9 of frictional disks and and the fixed friction pulley 12 of main shaft 11.
2, by the described bench drill thread tapper of claim 1, it is characterized in that: stage clip 13 is installed on the frictional disk 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203017 CN87203017U (en) | 1987-03-04 | 1987-03-04 | Tapping device for bench drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203017 CN87203017U (en) | 1987-03-04 | 1987-03-04 | Tapping device for bench drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87203017U true CN87203017U (en) | 1987-11-04 |
Family
ID=4819064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87203017 Withdrawn CN87203017U (en) | 1987-03-04 | 1987-03-04 | Tapping device for bench drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87203017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341654C (en) * | 2004-12-21 | 2007-10-10 | 应安义 | Pneumatic threading machine |
| CN103111894A (en) * | 2013-01-31 | 2013-05-22 | 淮南矿业(集团)有限责任公司 | Reduction device used for tapping by drilling machine |
-
1987
- 1987-03-04 CN CN 87203017 patent/CN87203017U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341654C (en) * | 2004-12-21 | 2007-10-10 | 应安义 | Pneumatic threading machine |
| CN103111894A (en) * | 2013-01-31 | 2013-05-22 | 淮南矿业(集团)有限责任公司 | Reduction device used for tapping by drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |