CN207057774U - The frictional tap holder of nylon - Google Patents
The frictional tap holder of nylon Download PDFInfo
- Publication number
- CN207057774U CN207057774U CN201720938121.XU CN201720938121U CN207057774U CN 207057774 U CN207057774 U CN 207057774U CN 201720938121 U CN201720938121 U CN 201720938121U CN 207057774 U CN207057774 U CN 207057774U
- Authority
- CN
- China
- Prior art keywords
- friction plate
- rotating shaft
- nylon
- shell
- nylon friction
- 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 - Fee Related
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- Dowels (AREA)
Abstract
The utility model provides a kind of tap holder for protecting screw tap.Including taper shank, shell and upper nylon friction plate, rotating shaft and lower nylon friction plate in shell, the lower end of rotating shaft is blind hole, and screw tap is inserted in the blind hole, fixed with holding screw.Two nylon friction plates is produced elastic deformation by screwing compact heap, so as to produce the frictional force for driving rotating shaft rotation, then screw locking nut and fix.During work, shell drives screw tap rotation to realize tapping by the frictional force of nylon friction plate, and when screw tap moment of torsion increases, nylon friction plate produces slip with rotating shaft, so as to play a part of protecting screw tap.The chuck small volume, it is in light weight, it is simple in construction, it is easy to use.Stable working is reliable, without noise, on the basis of tap tool expense is saved, improves tapping efficiency.
Description
Technical field
The utility model belongs to field of machining, there is provided a kind of tap holder for protecting screw tap.
Background technology
In manufacture field, the processing to screwed hole uses screw tap more.Screw tap is clamped on chuck, chuck clamping is in drilling machine
Or on tapping machine, the rotation of screw tap is driven using the rotation of drilling machine or tapping machine, realizes the processing of screwed hole internal thread.It is this to attack
The operational method of silk, it is uncontrollable to be typically due to moment of torsion, often causes tap's teeth collapsing or fractures.Particularly attack it is blind threaded
When, when screw tap access hole bottom, moment of torsion increased dramatically, it is easier to cause screw tap to damage.And in general precautionary measures are to utilize behaviour
The experience of workmanship carries out manual control, such as low turn at a slow speed, with caution operation, carefulness control tapping depth, pays close attention to change of iron filings etc.,
Tapping efficiency is had a strong impact on, the damage of screw tap can not be avoided completely.
The content of the invention
The utility model solve technical problem be：Nylon friction plate is added in chuck, is driven using the friction of nylon
Screw tap rotate tapping, when screw tap is obstructed it is larger when, the frictional force of nylon can not drive screw tap to rotate, realize screw tap stop, so as to
Protect screw tap.
The utility model adopts the technical scheme that：
The frictional tap holder of nylon includes taper shank and the shell being fixedly connected with taper shank, also includes installed in described outer
Upper nylon friction plate, rotating shaft and lower nylon friction plate in shell；The shell is blind-hole type cylindrical structure, in the interior table of opening
Face is machined with internal thread, is threadedly coupled cylindrical shape compact heap；The compact heap is fixed by screwing locking nut；The rotating shaft
Lower end is blind hole, and screw tap is inserted in the blind hole, fixed with holding screw.
Further, in order to increase frictional force, that is, nylon friction plate and the contact surface area of rotating shaft are increased, the upper nylon rubs
Pad and lower nylon friction plate use taper-face contact with the upper end of rotating shaft, and two nylon friction plates and inner surface of outer cover use post
Face contacts.
When tapping is processed, drilling machine or tapping machine drive shell rotation, the frictional force band turn that shell passes through nylon friction plate
Axle rotates, and rotating shaft drives screw tap rotation, realizes that tapping is processed.When screw tap moment of torsion increases suddenly, more than rubbing for nylon friction plate
Power is wiped, nylon friction plate skids, and rotating shaft stalling, plays a part of protecting screw tap.
The utility model obtain technological progress be：The chuck small volume, it is in light weight, it is simple in construction, it is easy to use.Using
The frictional force of nylon friction plate transmits moment of torsion, and stable working is reliable, without noise.Using nylon friction plate slipping protection screw tap,
On the basis of tap tool expense is saved, tapping efficiency is improved.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Wherein：Nylon friction plate, 6- compact heaps, 7- locks under the upper nylon friction plate of 1- taper shanks, 2- shells, 3-, 4- rotating shafts, 5-
Tight nut, 8- holding screws, 9- screw taps.
Embodiment
The utility model is explained with reference to accompanying drawing 1, the frictional tap holder of the utility model nylon include with
The taper shank 1 of drilling machine or tapping machine clamping, and the shell 2 being fixedly connected with taper shank 1, shell 2 are blind-hole type cylindrical structure, are opened at it
Inner surface at mouthful is machined with internal thread.The Excircle machining of cylindrical shape compact heap 6 has the outer spiral shell to match with the internal thread of shell 2
Line, the internal thread of locking nut 7 are consistent with the internal thread of shell 2.Upper nylon friction plate 3, rotating shaft 4 and lower nylon friction plate 5 are filled in successively
Enter in shell 2, rotatably compressed with compact heap 6, then screw locking nut 7 and fix.The lower end of rotating shaft 4 is blind hole, and screw tap 9 is filled in
In blind hole, fixed with holding screw 8.
Upper nylon friction plate 3 and lower the two friction plates of nylon friction plate 5 and the upper end of rotating shaft 4 use taper-face contact, two
Nylon friction plate and the inner surface of shell 2 are contacted using cylinder.When compact heap 6 rotatably compresses, upper nylon friction plate 3 and lower nylon rub
Pad 5 produces elastic deformation, produces frictional force with the inner surface of shell 2, the top conical surface of rotating shaft 4 respectively.Tapping process when, drilling machine or
Tapping machine drives shell 2 to rotate, and shell 2 drives rotating shaft 4 to rotate by the frictional force of nylon friction plate, and rotating shaft 4 drives screw tap 9 to revolve
Turn, realize that tapping is processed.When the moment of torsion of screw tap 9 increases suddenly, more than the frictional force of nylon friction plate, nylon friction plate skids,
Rotating shaft 4 stalls, and plays a part of protecting screw tap.
If the frictional force size of nylon friction plate is improper, it can tighten or unclamp compact heap 6 nylon friction plate is adjusted
Elastic deformation amount, then fixed with locking nut 7.
The utility model chuck small volume, it is in light weight, it is simple in construction, it is easy to use.Using the frictional force of nylon friction plate
Moment of torsion is transmitted, stable working is reliable, without noise.Using nylon friction plate slipping protection screw tap, tool expense is being saved
On the basis of, improve tapping efficiency.
Claims (2)
1. a kind of frictional tap holder of nylon, including taper shank（1）With with taper shank（1）The shell being fixedly connected（2）, its feature exists
In：Also include being arranged on the shell（2）Interior upper nylon friction plate（3）, rotating shaft（4）With lower nylon friction plate（5）；It is described outer
Shell（2）For blind-hole type cylindrical structure, cylindrical shape compact heap is threadedly coupled in opening（6）；The compact heap（6）By screwing lock
Tight nut（7）It is fixed；The rotating shaft（4）Lower end have blind hole, screw tap（9）Insert in the blind hole, use holding screw（8）It is fixed.
2. tap holder according to claim 1, it is characterised in that：The upper nylon friction plate（3）With lower nylon friction
Piece（5）And rotating shaft（4）Upper end use taper-face contact, two nylon friction plates（3、5）And shell（2）Inner surface uses cylinder
Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938121.XU CN207057774U (en) | 2017-07-31 | 2017-07-31 | The frictional tap holder of nylon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938121.XU CN207057774U (en) | 2017-07-31 | 2017-07-31 | The frictional tap holder of nylon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207057774U true CN207057774U (en) | 2018-03-02 |
Family
ID=61518174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720938121.XU Expired - Fee Related CN207057774U (en) | 2017-07-31 | 2017-07-31 | The frictional tap holder of nylon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207057774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11207737B2 (en) | 2019-09-05 | 2021-12-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Inline tool holders |
-
2017
- 2017-07-31 CN CN201720938121.XU patent/CN207057774U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11207737B2 (en) | 2019-09-05 | 2021-12-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Inline tool holders |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |