CN203509525U - Coupling pre-screwing axial floating device - Google Patents
Coupling pre-screwing axial floating device Download PDFInfo
- Publication number
- CN203509525U CN203509525U CN201320582799.0U CN201320582799U CN203509525U CN 203509525 U CN203509525 U CN 203509525U CN 201320582799 U CN201320582799 U CN 201320582799U CN 203509525 U CN203509525 U CN 203509525U
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- screwing
- dolly
- base
- axial
- floating
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Abstract
The utility model relates to a coupling pre-screwing axial floating device which comprises a floating base. The coupling pre-screwing axial floating device is characterized in that a linear guide rail is arranged on the floating base, the two ends of the floating base are provided with springs respectively and are connected with a pre-screwing dolly through the springs, the direction of the springs is parallel to the linear guide rail and the pre-screwing dolly is further installed on the floating base through the linear guide rail. The coupling pre-screwing axial floating device has the advantages that through the springs and the linear guide rail, floating between the floating base and the pre-screwing dolly is realized and it is guaranteed that the dolly is located in the middle in the natural state; and when the axial speed and advancing and the radial speed and advancing are not matched in the pre-screwing process, the axial floating device can make appropriate adjustment so that it can be guaranteed that a screw thread can be pre-screwed in place in the flexible state, the situation that stress borne by the screw thread is too large can be prevented from affecting the surface quality of the screw thread and meanwhile, the situation of sticking caused because the axial stress is too large can be reduced, therefore, the product percent of pass is improved and the working efficiency is greatly improved.
Description
Technical field
This patent belongs to hydrostatic testing machine technical field, particularly relates to a kind of coupling pre-screwing axial float device.
Background technology
At present, box cupling twist termination process be all generally first by coupling pre-screwing to steel pipe and then lead stubbornly, box cupling is tightened and is put in place.Pre-twisting in process, twists in advance after dolly clamps box cupling its rotation is advanced, and coupling pre-screwing, to steel pipe screw thread, is had to two motions in this twists process in advance, and one is rotatablely moving of box cupling, and another is box cupling rectilinear motion vertically.The rotation of box cupling is controlled by hydraulic motor, box cupling rectilinear motion is vertically to be controlled by hydraulic cylinder, pre-, twist in process, require box cupling to revolve to turn around the dolly pitch of going ahead, but actual being difficult to realize under the control of hydraulic pressure between box cupling and steel pipe axially and the mating of radial feed.
Summary of the invention
This patent provides a kind of coupling pre-screwing axial float device for solving the technical problem existing in known technology, and this device can solve box cupling rotation and the unmatched problem of box cupling feeding.
A kind of coupling pre-screwing axial float device, comprise unsteady base, the base that floats is provided with line slideway, and the two ends of the base that floats are respectively equipped with spring and are connected with the pre-dolly of twisting by spring, the direction of spring is parallel with line slideway, twists in advance dolly and also by line slideway, is arranged on and is floated on base.
Advantage and good effect that this patent has are:
Because this patent adopts technique scheme, by spring and line slideway, realized floating between unsteady base and pre-stubborn dolly, guarantee that dolly is placed in the middle under nature, when pre-twist process in axially and during not the mating of radial velocity feeding, axial float device can be made suitable adjustment, guarantee that screw thread is screwed in advance position under flexible state, effectively prevent the stressed excessive surface quality that affects screw thread of screw thread, can reduce the stuck situation that axially loaded causes greatly simultaneously, improved product percent of pass, thereby operating efficiency is improved greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of this patent;
Fig. 2 is the structural representation that has used the coupling pre-screwing screw-on machine of this patent;
In figure: 1, steel pipe fixture; 2, steel pipe; 3, box cupling; 4, box cupling clamping device; 5, twist in advance dolly; 6, rotating liquid cylinder pressure; 7, hydraulic motor; 8, axial float device; 81, spring; 82, line slideway; 83, unsteady base; 9, twist in advance dolly driving cylinder; 10, base.
The specific embodiment
For further understanding utility model content, the Characteristic of this patent, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of coupling pre-screwing axial float device, comprise the base 83 that floats, the base that floats is provided with line slideway 82, the two ends of unsteady base are respectively equipped with spring 81, and be connected with the pre-dolly of twisting by spring, the direction of spring is parallel with line slideway, twists in advance dolly and also by line slideway, is arranged on and is floated on base.Can on line slideway, there is moving back and forth by a small margin in the pre-dolly of twisting.
The operating principle of this patent is:
Refer to Fig. 2, shown in Fig. 2 is the coupling pre-screwing screw-on machine that has used this patent, this screw-on machine comprises base 10, the left end of base is provided with steel pipe fixture 1, steel pipe fixture clamps steel pipe 2, the right-hand member of base is provided with the pre-dolly driving cylinder 9 of twisting, the pre-dolly driving cylinder of twisting drives axial float device 8 to move back and forth, the pre-dolly 5 of twisting moves back and forth on base by axial float device 8, the pre-dolly of twisting is provided with hydraulic motor 7, hydraulic motor drives box cupling 3 to rotate on steel pipe by box cupling clamping device 4 and moves forward and backward by twisting in advance 9 drives of dolly driving cylinder, pre-twisting on dolly is also provided with for clamping the rotating liquid cylinder pressure 6 of box cupling.
The present embodiment is by spring and line slideway, unsteady base and pre-float function of twisting between dolly have been realized, and guarantee that dolly is placed in the middle under nature, when box cupling on steel pipe, be rotated and the box cupling feed speed brought and pre-pace of twisting dolly driving cylinder not quite identical in, just can there is displacement by a small margin by axial float device in the pre-dolly of twisting, to guarantee that box cupling is screwed in advance position under flexible state, effectively prevent the stressed excessive surface quality that affects screw thread of screw thread, can reduce the stuck situation that axially loaded causes greatly simultaneously, improved product percent of pass, thereby operating efficiency is improved greatly.
Although by reference to the accompanying drawings the preferred embodiment of this patent is described above; but this patent is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of this patent; not departing from the scope situation that this patent aim and claim protect, can also make a lot of forms, within these all belong to the protection domain of this patent.
Claims (1)
1. a coupling pre-screwing axial float device, comprise unsteady base, it is characterized in that: the base that floats is provided with line slideway, the two ends of unsteady base are respectively equipped with spring and are connected with the pre-dolly of twisting by spring, the direction of spring is parallel with line slideway, twists in advance dolly and also by line slideway, is arranged on and is floated on base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582799.0U CN203509525U (en) | 2013-09-18 | 2013-09-18 | Coupling pre-screwing axial floating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582799.0U CN203509525U (en) | 2013-09-18 | 2013-09-18 | Coupling pre-screwing axial floating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203509525U true CN203509525U (en) | 2014-04-02 |
Family
ID=50368507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582799.0U Expired - Fee Related CN203509525U (en) | 2013-09-18 | 2013-09-18 | Coupling pre-screwing axial floating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203509525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903504A (en) * | 2017-05-08 | 2017-06-30 | 青岛金邦诚机电设备有限公司 | A kind of automatic pre- stubborn machine of box cupling |
-
2013
- 2013-09-18 CN CN201320582799.0U patent/CN203509525U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903504A (en) * | 2017-05-08 | 2017-06-30 | 青岛金邦诚机电设备有限公司 | A kind of automatic pre- stubborn machine of box cupling |
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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: 20140402 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |