CN203738172U - Floating thread tapping device - Google Patents
Floating thread tapping device Download PDFInfo
- Publication number
- CN203738172U CN203738172U CN201420109026.5U CN201420109026U CN203738172U CN 203738172 U CN203738172 U CN 203738172U CN 201420109026 U CN201420109026 U CN 201420109026U CN 203738172 U CN203738172 U CN 203738172U
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- CN
- China
- Prior art keywords
- taper shank
- chuck
- spring
- studs
- hole
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a floating thread tapping device which comprises a taper shank sleeve with a cavity, wherein a jacket is arranged in the cavity of the taper shank sleeve, and a screw tap is inserted into the cavity in the jacket and fixed by a lock nut; a through hole is formed in the right side of the taper shank sleeve along the center axis, a double-end stud is inserted in the through hole, the left end of the double-end stud is fixedly connected with the jacket, the double-end stud is sleeved with a spring bearer plate tightly attached to the jacket and further sleeved with a compression spring, and two ends of the compression spring are propped against the spring bearer plate and the bottom of the cavity of the taper shank sleeve respectively; and a counter bore coaxial with the through hole in the taper shank sleeve is formed in the right end of the taper shank sleeve, and an adjusting nut is screwed on the subsection, arranged in the counter bore, of the right end of the double-end stud. The device effectively solves the problem of difficulty in adjustment due to deformation of a spring in a conventional tapping device, so that position adjustment process of the screw tap is more convenient, faster and more efficient; and besides, a waist-shaped long hole formed in the outer wall of the taper shank sleeve can facilitate replacement of an extension spring.
Description
Technical field
The utility model relates to Machining Technology field, is specifically related to a kind of float tapping screw device.
Background technology
In field of machining, often run into the part of bent axle small end thread tapping, its workpiece material, the selection of screw tap grinding parameter, cutting fluid selection, cutting speed, parts fixation error, the factors such as fixture, equipment geometric error all affect the crudy of screw thread, machine tapping is to improve screw processing quality and efficiency, reduces the main method of labour intensity.At tapping or while moving back thread, when often turning around, main shaft also has certain axial feeding, so lathe spindle rotating speed and knife rest feeding must keep certain proportionate relationship, otherwise can cause rotten tooth or screw tap to fracture, the thread surface crudy after processing is poor; And after changing the screw tap of different size, all need the power transmission shaft amount of feeding of tapping system to adjust, to adapt to new screw tap, can cause the rising of hand labor intensity, reduce production efficiency.
Publication No. is that the patent document of CN103264200A discloses a kind of chasing bar, comprises lifting cover, connecting axle and chuck, and the bottom of connecting axle is splined shaft, and splined shaft stretches in the inner chamber of lifting cover and is fixedly connected with a block; Lifting cover and the contact site of splined shaft are corresponding splined shaft sleeve, and lifting cover is inner, be set with the first spring on the connecting axle of block upside, and the upper end of the first spring is against the inwall of lifting cover, and lower end is against block upper surface; The lower end of lifting cover is installed with chuck, and chuck is used for installing screw tap; Lifting cover is inner, block downside is provided with the second spring, and the upper end of the second spring is against the downside of block, and lower end is against the upper surface of chuck; On the outer wall of described lifting cover, be provided with upper and lower two through holes, upper through hole is communicated with the inner chamber that is positioned at block upside of lifting cover, lower through-hole is communicated with the inner chamber that is positioned at block downside of lifting cover, on the outer wall of lifting cover, form the guide groove that is communicated with upper and lower through hole, the bottom of lifting cover is arranged with sealing shroud, liquid sealing between sealing shroud and lifting cover, and sealing shroud covers upper and lower through hole and the guide groove of lifting cover, and sealing shroud is held in the upper end of chuck.Fig. 1 from foregoing and this scheme, this scheme is to be all socketed spring in the upper and lower both sides of block, stretching by upper and lower two springs and compression realize connecting axle slip in the axial direction, the feeding requirement when can mate different screw taps in tapping or moving back thread.But after long-term use, spring there will be deformation, causes block to be subjected to displacement, and finally causes tapping misalignment, need to adjust or change; And the position of adjusting block can only be by adjusting tool main shaft overhang, make that adjustment difficulty is higher, precision is lower; In addition, while changing spring, whole device can only be pulled down to decomposition and just can complete, step is more, and operating process is loaded down with trivial details, and speed is slow, has a strong impact on production efficiency.
Utility model content
In order to solve the problems of the technologies described above, the utility model aim to provide a kind of simple in structure, easy to adjust, precision is high and change to be easy to float tapping screw device.
The utility model is achieved by following technical solution:
A kind of float tapping screw device, comprise the taper shank cover that has cavity, in taper shank cover cavity, be provided with chuck, chuck inner chamber is fitted with screw tap and fixes by locking nut, taper shank cover right side has through hole along axis, in through hole, be fitted with studs, studs left end and chuck Joint, on studs, be socketed with the spring bearer plate of being close to chuck, on studs, be also socketed with Compress Spring, Compress Spring two ends prop up respectively spring bearer plate and taper shank cover cavity bottom, described taper shank cover right-hand member has the counterbore coaxial with its interior bone, studs right-hand member is placed in the segmentation in this counterbore and is connected with adjusting nut.
Described taper shank cover outer wall has long kidney-shaped hole, is provided with two screws in this long kidney-shaped hole, and a screw is fixedly connected on long kidney-shaped hole right-hand member, and another screw, through chuck, is provided with extension spring between two screws.
Fitting-type between described studs and taper shank cover inner via hole is H7/g6.
Fitting-type between described chuck and taper shank cover is H7/g6.
Described screw is interior hexagonal chapiter screw.
The beneficial effects of the utility model are:
Compared with prior art, the float tapping screw device that the utility model provides, on taper shank cover right side, offer through hole and the counterbore coaxial with this through hole, studs left end and chuck are close to, right-hand member is placed in the segmentation of counterbore and is also connected with adjusting nut, by rotation adjusting nut, can carry out the adjusting of screw tap position, efficiently solve the problem of the adjusting difficulty causing after the deformation of existing chasing bar medi-spring, make screw tap position adjustments process more convenient, efficient; In addition the long kidney-shaped hole that taper shank cover outer wall is offered can be convenient to the replacing of extension spring, without whole device decomposition dismounting can be completed to following of extension spring, changes, and has effectively simplified operating procedure, has saved labour, and operating efficiency is improved.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
In figure: 1-screw tap, 2-locking nut, 3-taper shank cover, 4-chuck, 5-spring bearer plate, 6-Compress Spring, 7-extension spring, 8-screw, 9-studs, 10-adjusting nut, 11-long kidney-shaped hole.
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further, but described in desired protection domain is not limited to;
As Fig. 1, shown in 2, the float tapping screw device that the utility model provides, comprise the taper shank cover 3 that has cavity, taper shank overlaps and in 3 cavitys, is provided with chuck 4, chuck 4 inner chambers are fitted with screw tap 1 fixing by locking nut 2, taper shank overlaps 3 right sides and has through hole along axis, in through hole, be fitted with studs 9, studs 9 left ends and chuck 4 Joints, on studs 9, be socketed with the spring bearer plate 5 of being close to chuck 4, on studs 9, be also socketed with Compress Spring 6, Compress Spring 6 two ends prop up respectively spring bearer plate 5 and taper shank overlaps 3 cavity bottom, described taper shank overlaps 3 right-hand members and has the counterbore coaxial with its interior bone, studs 9 right-hand members are placed in and in the segmentation in this counterbore, are connected with adjusting nut 10.
Described taper shank overlaps 3 outer walls and has long kidney-shaped hole 11, is provided with 8, one screws 8 of two screws and is fixedly connected on long kidney-shaped hole 11 right-hand members in this long kidney-shaped hole 11, and another screw 8 is provided with extension spring 7 through between 4, two screws 8 of chuck.
For the ease of assembling, also can guarantee that studs 9 can overlap 3 interior slips at taper shank, the fitting-type that described studs 9 and taper shank overlap between 3 inner via holes is H7/g6.
For the ease of chuck 4, can overlap 3 interior slips at taper shank, the fitting-type between described chuck 4 and taper shank cover 3 is H7/g6.
Described screw 8 is interior hexagonal chapiter screw, and its sharpened edge that can prevent conventional screw scratches parts or operating personnel, and security performance is high.
During use, screw tap 1 packs into and is placed in chuck 4, tightens locking nut 2, and the hexagon socket cap head screw 8 in fastening left side is connected as one screw tap 1 and taper shank cover 3.Under the effect of Compress Spring 6, spring bearer plate 5 left sides contact with chuck 4, extension spring 7 is connected with hexagon socket cap head screw 8, screw tap 1 flexibly connects by chuck 4 with taper shank cover 3, chuck 4 and 3, taper shank cover are assembled together with H7/g6, and during work, chuck 4 is vacillated in taper shank cover 3, adjust voluntarily the position of screw tap 1 and workpiece, guarantee the reliability of tapping.Studs 9 with coordinating in wire taper sleeve 3 be H7/g6, and by adjusting nut 10 regulating spring pressing plates 5 position in taper shank cover 3, thereby reach the length while adjusting screw tap 1 work.During tapping, by in the mohs tapered bore of a certain station of taper shank cover 3 insertion electric driving tool posts, main shaft low-speed running, by control device, electric driving tool post is moved forward, screw tap 1 is tapping automatically just, under the cushioning effect of Compress Spring 6, can avoid vibration and the impact of impulsive force on screw tap 1 of lathe, guarantee the safe and reliable of screw tap 1; After reaching the predetermined depth of thread, machine tool chief axis reversion, screw tap 1 exits automatically, and under the effect of extension spring 7, screw tap 1 is reset to spring bearer plate 5 left sides and contacts, and disposable unsteady tapping completes automatically.
Claims (5)
1. a float tapping screw device, comprise the taper shank cover (3) that has cavity, in taper shank cover (3) cavity, be provided with chuck (4), chuck (4) inner chamber is fitted with screw tap (1) fixing by locking nut (2), taper shank cover (3) right side has through hole along axis, in through hole, be fitted with studs (9), studs (9) left end and chuck (4) Joint, on studs (9), be socketed with the spring bearer plate (5) of being close to chuck (4), on studs (9), be also socketed with Compress Spring (6), Compress Spring (6) two ends prop up respectively spring bearer plate (5) and taper shank cover (3) cavity bottom, it is characterized in that: described taper shank cover (3) right-hand member has the counterbore coaxial with its interior bone, studs (9) right-hand member is placed in and in the segmentation in this counterbore, is connected with adjusting nut (10).
2. float tapping screw device according to claim 1, it is characterized in that: described taper shank cover (3) outer wall has long kidney-shaped hole (11), in this long kidney-shaped hole (11), be provided with two screws (8), a screw (8) is fixedly connected on long kidney-shaped hole (11) right-hand member, another screw (8), through chuck (4), is provided with extension spring (7) between two screws (8).
3. float tapping screw device according to claim 1, is characterized in that: the fitting-type between described studs (9) and taper shank cover (3) inner via hole is H7/g6.
4. float tapping screw device according to claim 1, is characterized in that: the fitting-type between described chuck (4) and taper shank cover (3) is H7/g6.
5. float tapping screw device according to claim 2, is characterized in that: described screw (8) is interior hexagonal chapiter screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109026.5U CN203738172U (en) | 2014-03-11 | 2014-03-11 | Floating thread tapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109026.5U CN203738172U (en) | 2014-03-11 | 2014-03-11 | Floating thread tapping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203738172U true CN203738172U (en) | 2014-07-30 |
Family
ID=51338035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109026.5U Expired - Fee Related CN203738172U (en) | 2014-03-11 | 2014-03-11 | Floating thread tapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203738172U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044210A (en) * | 2017-12-15 | 2018-05-18 | 广新海事重工股份有限公司 | A kind of tooth machining unit based on magnetic drill |
| CN109093211A (en) * | 2018-10-31 | 2018-12-28 | 中船动力有限公司 | Female thread machining method applied to machining center |
| CN109465505A (en) * | 2018-12-30 | 2019-03-15 | 广西玉柴机器股份有限公司 | A kind of break-proof safety tap chuck |
| CN113478028A (en) * | 2021-07-23 | 2021-10-08 | 圆兴(厦门)精密工具有限公司 | Screw tap structure capable of improving cooling uniformity of cooling liquid and using method thereof |
-
2014
- 2014-03-11 CN CN201420109026.5U patent/CN203738172U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044210A (en) * | 2017-12-15 | 2018-05-18 | 广新海事重工股份有限公司 | A kind of tooth machining unit based on magnetic drill |
| CN109093211A (en) * | 2018-10-31 | 2018-12-28 | 中船动力有限公司 | Female thread machining method applied to machining center |
| CN109465505A (en) * | 2018-12-30 | 2019-03-15 | 广西玉柴机器股份有限公司 | A kind of break-proof safety tap chuck |
| CN109465505B (en) * | 2018-12-30 | 2023-09-22 | 广西玉柴机器股份有限公司 | Safe broken-wire-preventing cone chuck |
| CN113478028A (en) * | 2021-07-23 | 2021-10-08 | 圆兴(厦门)精密工具有限公司 | Screw tap structure capable of improving cooling uniformity of cooling liquid and using method thereof |
| CN113478028B (en) * | 2021-07-23 | 2022-06-17 | 圆兴(厦门)精密工具有限公司 | Screw tap structure capable of improving cooling uniformity of cooling liquid and using method thereof |
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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: 20140730 Termination date: 20150311 |
|
| EXPY | Termination of patent right or utility model |