CN201287311Y - Special pull sleeve for screwing double-end double-screw bolt - Google Patents
Special pull sleeve for screwing double-end double-screw bolt Download PDFInfo
- Publication number
- CN201287311Y CN201287311Y CNU2008201719233U CN200820171923U CN201287311Y CN 201287311 Y CN201287311 Y CN 201287311Y CN U2008201719233 U CNU2008201719233 U CN U2008201719233U CN 200820171923 U CN200820171923 U CN 200820171923U CN 201287311 Y CN201287311 Y CN 201287311Y
- Authority
- CN
- China
- Prior art keywords
- cover
- hole
- pulling
- back body
- studs
- 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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Abstract
A stud special spanning sleeve should be mounted and fit with a tightening machine to be used, and users can assemble stud via the tightening machine. The stud special spanning sleeve comprises a spanning sleeve front body and a spanning sleeve back body, which is characterized in that the spanning sleeve front body is provided with a round inner hole as a through hole; the front part of the inner hole is provided with an internal screw fit with stud, and the back part is connected with a cylinder connecting rod at the front end of the spanning sleeve back body via clearance fit; the spanning sleeve front body is provided with a spiral hole fit with the pin axle; the back end of the spanning sleeve back body is provided with a square hole fit with a spanning axle of a tightening machine; the square hole is coaxial with the cylinder connecting rod at the front end of the spanning sleeve back body and the inner hole of the spanning sleeve front body; and the side wall of the square hole is provided with a through hole for plugging a pin axle. The stud special spanning sleeve has reliable connection and high efficiency, will not affect tightening precision in exit, can fully play the assembling advantages of tightening machine such as low noise, high efficiency and high precision.
Description
Technical field
The utility model relates to screwing machine, unscrews the machine technology field, specifically is that cover is pulled in the supporting stubborn studs special use of a kind of and tightening machine.
Background technology
Production lines such as existing automobile, diesel engine are assembled studs and are generally adopted pneumtic impact wrench, not only noise is big, efficient is low, working strength is high, and tighten low precision, owing to do not pull cover for the supporting special use of tightening machine, can't adopt tightening machine to carry out assembling operation, can not bring into play tightening machine assembling low noise, high efficiency, high-precision advantage.
The utility model content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of stubborn studs special use to pull cover, and it can be installed and used with tightening machine is supporting, thereby realizes utilizing tightening machine that studs is assembled.
In order to address the above problem, the utility model is by the following technical solutions: cover is pulled in this stubborn studs special use, comprise and pull the cover precursor, pull cover back body, the described cover precursor of pulling is provided with a circular inner hole and is through hole, the leading portion of this endoporus is provided with the internal thread that cooperates with studs, the back segment of this endoporus is connected with the cylindric connecting rod matched in clearance of pulling cover back body front end and by bearing pin, pulls and overlaps the hole that cooperates with described bearing pin on precursor shape in the shape of a spiral; The rear end of pulling cover back body is provided with the square hole that axle cooperates of pulling with tightening machine, this square hole with the cylindric connecting rod of pulling cover back body front end, pull the endoporus coaxial line that overlaps precursor; The sidewall of square hole is provided with the through hole of grafting bearing pin.
As further technical scheme of the present utility model:
Pull in the cover in this stubborn studs special use, the described front end face of pulling the cylindric connecting rod of cover back body is provided with spherical surface hill.
Pull in the cover in this stubborn studs special use, on the described outer surface of pulling cover back body with the corresponding annular groove that " O " RunddichtringO can be installed that is provided with of through hole of grafting bearing pin.
During use,, will pull cover precursor internal thread then and aim at the screw thread of studs with ready in the manual screwed hole that is screwed into workpiece of studs one end.Start tightening machine, pull the axle rotation, pulling axle advances along rotating in the spiral bore of pulling the cover precursor simultaneously by the bearing pin of pulling the body drive of cover back and pull between the cover precursor, when bearing pin turns to an end of spiral bore, can not in spiral bore, rotate again, pull the rotation of cover precursor by the bearing pin drive thereby pull cover back body.Along with the increase of moment of torsion, studs just screws in to be pulled in the cover precursor, contact with the spherical surface hill of pulling cover back body front end up to the end face of studs, and spherical surface hill compresses studs, pull the cover precursor this moment, pull overlap after body and studs be one.Pull axle and be rotated further, then drive in the studs precession workpiece, the realization studs is tightened.
Pull axle and drive and to pull the body counter-rotating of cover back, the bearing pin of pull cover back body, pulling between the cover precursor rotates and retreats along pulling spiral bore on the cover precursor, and the spherical surface hill of pulling cover back body this moment leaves the end face of studs.Pull cover back body and continue rotation, then drive and pull the cover precursor and reverse together, separate with studs until pulling the cover precursor, work finishes.
The beneficial effects of the utility model are: adopt this special use to pull cover and twist studs, have connection reliably, the characteristics that efficient is high do not influence when especially withdrawing from and tighten precision, can give full play to tightening machine assembling low noise, high efficiency, high-precision advantage.Also can be used for unscrewing machine.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further:
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is a cutaway view of the present utility model,
Among the figure: 1 pulls cover back body, 11 spherical surface hills, and 12 cylindric connecting rods, 13 annular grooves, 2 bearing pins, 3 pull the cover precursor, 31 internal threads, 32 holes, 4 pull axle, 5 " O " RunddichtringO, 6 straight pins, 7 studs, 71 end faces, 8 workpiece bodies.
The specific embodiment
Should twist the studs special use pulls cover and mainly comprises and pull cover precursor 3, pull cover back body 1.
As shown in Figure 2, pulling cover precursor 3 is provided with a circular inner hole and is through hole.The leading portion of this endoporus is provided with the internal thread 31 that cooperates with studs 7.The back segment of this endoporus and cylindric connecting rod 12 matched in clearance of pulling cover back body 1 front end, and by bearing pin 2 connections.Pull hole 32 that cover cooperates with bearing pin 2 on the precursor 3 shape in the shape of a spiral, as shown in Figure 1.
The rear end of pulling cover back body 1 is provided with and tightening machine/unscrew 4 square hole that cooperate of pulling of machine.This square hole and cylindric connecting rod 12, pull the cover precursor 3 the endoporus coaxial line.The sidewall of square hole is provided with the through hole of grafting straight pin.The front end face of cylindric connecting rod 12 is provided with a spherical surface hill 11.Pull on the outer surface of cover back body 1 the corresponding annular groove 13 that " O " RunddichtringO 5 can be installed that is provided with of through hole with grafting straight pin 6, as shown in Figure 1.
The use step is as follows:
To pull cover back body and be connected and pull on the axle 4, load onto straight pin 6 and " O " RunddichtringO 5.Sealing ring 5 prevents that straight pin 6 from deviating from, and guarantees to pull axle 4 and pulls the reliability that cover afterwards is connected between the body 1.Again studs 7 one ends are screwed into workpiece body 8, ready.
Then, the internal thread 31 of pulling cover precursor 3 is aimed at studs 7, started the tightening machine motor, axle 4 rotations are pulled in drive, pull axle 4 drives and pull cover back body 1, pull cover back body 1 drive bearing pin 2, bearing pin 2 32 rotates along the hole earlier, because hole 32 be a helical form, so bearing pin 2 can be along the hole in rotation 32 advanced.When bearing pin 2 rotates and advances to the end in hole 32, can not in hole 32, rotate again, when advancing, bearing pin 2 drives to be pulled cover precursor 3 and rotates together.
Increase along with moment of torsion, double end spiral shell 7 just screws in to be pulled in the cover precursor 3, contact with the spherical surface hill 11 of pulling cover back body 1 front end up to studs 7 end faces 71, moment of torsion continue to increase, and 11 pairs of studs 7 of spherical surface hill compress, and pulls cover back body 1 this moment, pulls cover precursor 3 and studs 7 is one, pulling axle 4 is rotated further, then drive in the studs 7 precession workpiece bodies 8, realization studs 7 is tightened, and reaches till the moment requirement.
Pull axle 4 and drive and to pull body 1 counter-rotating of cover back, bearing pin 2 rotates and retreats along pulling spiral bore 32 on the cover precursor, and the spherical surface hill 11 of pulling cover back body 1 this moment leaves the end face 71 of studs 7.Pull cover back body 1 and continue rotation, then drive and pull cover precursor 3 and reverse together, overlap precursor 3 and separate with studs 7 until pulling, work finishes.
Claims (3)
1, cover is pulled in a kind of stubborn studs special use, it is characterized in that: comprise and pull the cover precursor, pull cover back body, the described cover precursor of pulling is provided with a circular inner hole and is through hole, the leading portion of this endoporus is provided with the internal thread that cooperates with studs, the back segment of this endoporus is connected with the cylindric connecting rod matched in clearance of pulling cover back body front end and by bearing pin, pulls and overlaps the hole that cooperates with described bearing pin on precursor shape in the shape of a spiral; The rear end of pulling cover back body is provided with the square hole that axle cooperates of pulling with tightening machine, this square hole with the cylindric connecting rod of pulling cover back body front end, pull the endoporus coaxial line that overlaps precursor; The sidewall of square hole is provided with the through hole of grafting bearing pin.
2, cover is pulled in a kind of stubborn studs special use according to claim 1, it is characterized in that: the described front end face of pulling the cylindric connecting rod of cover back body is provided with spherical surface hill.
3, cover is pulled in a kind of stubborn studs special use according to claim 1 and 2, it is characterized in that: on the described outer surface of pulling cover back body with the corresponding annular groove that " O " RunddichtringO can be installed that is provided with of through hole of grafting bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201719233U CN201287311Y (en) | 2008-09-22 | 2008-09-22 | Special pull sleeve for screwing double-end double-screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201719233U CN201287311Y (en) | 2008-09-22 | 2008-09-22 | Special pull sleeve for screwing double-end double-screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287311Y true CN201287311Y (en) | 2009-08-12 |
Family
ID=40978984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201719233U Expired - Fee Related CN201287311Y (en) | 2008-09-22 | 2008-09-22 | Special pull sleeve for screwing double-end double-screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287311Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896609A (en) * | 2012-09-29 | 2013-01-30 | 玉柴联合动力股份有限公司 | Reversal-retreating-type clamping head |
| CN103286730A (en) * | 2013-06-21 | 2013-09-11 | 无锡市飞玛斯精密科技有限公司 | Stud implanting wrench |
| CN103495860A (en) * | 2013-10-18 | 2014-01-08 | 中核（天津）机械有限公司 | Automatic tightening device for double-end studs and nuts |
| CN104816274A (en) * | 2015-05-21 | 2015-08-05 | 安徽安凯汽车股份有限公司 | Installing fixture for double armed bolt |
| CN108213939A (en) * | 2018-03-06 | 2018-06-29 | 天津市多思机械设备有限公司 | Studs send nail end locking device |
-
2008
- 2008-09-22 CN CNU2008201719233U patent/CN201287311Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896609A (en) * | 2012-09-29 | 2013-01-30 | 玉柴联合动力股份有限公司 | Reversal-retreating-type clamping head |
| CN102896609B (en) * | 2012-09-29 | 2015-07-15 | 玉柴联合动力股份有限公司 | Reversal-retreating-type clamping head |
| CN103286730A (en) * | 2013-06-21 | 2013-09-11 | 无锡市飞玛斯精密科技有限公司 | Stud implanting wrench |
| CN103495860A (en) * | 2013-10-18 | 2014-01-08 | 中核（天津）机械有限公司 | Automatic tightening device for double-end studs and nuts |
| CN103495860B (en) * | 2013-10-18 | 2016-06-08 | 中核（天津）机械有限公司 | The automatic screwing device of double end stud and nut |
| CN104816274A (en) * | 2015-05-21 | 2015-08-05 | 安徽安凯汽车股份有限公司 | Installing fixture for double armed bolt |
| CN108213939A (en) * | 2018-03-06 | 2018-06-29 | 天津市多思机械设备有限公司 | Studs send nail end locking device |
| CN108213939B (en) * | 2018-03-06 | 2023-12-22 | 天津市多思机械设备有限公司 | Locking device for screw feeding end of double-end stud |
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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: 20090812 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |