CN201287246Y - Fixture structure with inner-expansion air chamber - Google Patents
Fixture structure with inner-expansion air chamber Download PDFInfo
- Publication number
- CN201287246Y CN201287246Y CNU2008201362989U CN200820136298U CN201287246Y CN 201287246 Y CN201287246 Y CN 201287246Y CN U2008201362989 U CNU2008201362989 U CN U2008201362989U CN 200820136298 U CN200820136298 U CN 200820136298U CN 201287246 Y CN201287246 Y CN 201287246Y
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- air bag
- airbag
- liner
- tool structure
- internal
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Abstract
The utility model relates to a tool structure with an internal expansion type airbag, comprising a liner, a liner base, a return mechanism, an airbag and an airbag holder, wherein the airbag is arranged at the outer side of the bottom of the liner base and is provided in the chamber of the airbag holder; the bottom of the liner base is clamped at the inner side of a through hole at the upper surface of the airbag holder; the distance between two ends of the through hole is same as the length of the upper surface of the liner base, therefore, the linear base can be moved up and down in the airbag holder; the airbag is made from an inflatable high temperature resistance gas tube, whose left and right sides are respectively provided with an arc structure. The tool structure can effectively prevent butted edges from staggering, generate expansion force whose maximum value is 30kg/cm, improve expansion force significantly, and keep circumferential expansion force uniform, thereby confirming the arc degree of the components after expansion, and satisfying the demands of welding technique on large diameter tubes.
Description
Technical field
The utility model relates to welding technology field, especially is applied to the tool structure that has the internal-expansion type air bag in the large-diameter cylinder body welding procedure.
Background technology
At present, in welding procedures such as plasma, must carry out swelling to inner barrel during at cylindrical shell girth welding outward, it mainly acts on and is: good heat radiation and the misalignment of eliminating edge fit is provided.
At present, industry has been adopted three kinds of methods usually and has been realized inner swelling effect:
1, cylinder mode.Promptly in the inner mode of placing a plurality of cylinders of workpiece.The main shortcoming of this method is that tension force is not enough, can only accomplish the tension force of 5kg/cm usually, and the swelling effect is very bad.Because the mounting structure of a plurality of cylinders makes tool structure numerous and diverse, and weight is big, be unfavorable for that the cantilever of internal-expanding installation is installed simultaneously.
2, hydraulic cylinder mode.Though this mode can obtain bigger tension force, but because internal-expanding installation can be followed workpiece and rotated together in welding process, consider if reduce hydraulic system then the risk that might leak, therefore need be installed in hydraulic system on the frock and follow frock and rotate together, its global design structure be comparatively complicated.In addition, because hydraulic fluid is to the influence of the welding that influence weld, so generally can not adopt this kind method for the welding of the demanding workpiece of welding quality yet.
3, hand screw compresses mode, promptly by the mode at a plurality of manual adjustment screw rods of the inner placement of workpiece.This method can effectively realize the swelling effect, and the inhomogeneous butt joint cylindrical shell circular degree that causes is very poor but its shortcoming is the tension force of each expanding block, and more crucial is that operating process is cumbersome, does not meet modernized high-efficient automatic requirement of welding.
The utility model content
Outside the deficiency that exists in the above-mentioned technology, the utility model provides a kind of project organization advantages of simple, the misalignment phenomenon that can effectively eliminate edge fit takes place, and when obtaining bigger tension force, can also make the swelling effect of circumferencial direction keep a kind of tool structure that has the internal-expansion type air bag uniformly.
For achieving the above object, the utility model provides a kind of tool structure that has the internal-expansion type air bag, comprises liner, gasket base and return mechanism, also comprises air bag and air bag seat, described air bag is arranged at the outside of described gasket base bottom, and is built in the cavity of described air bag seat inside.
Described air bag adopts inflatable high temperature resistant tracheae to make, and the left and right sides is respectively the circular arc type structure.
The uper side surface of described air bag seat is provided with through hole, and the distance at described through hole two ends is identical with the length of described gasket base uper side surface.
The bottom of described gasket base is arranged in the inboard of described through hole.
The bottom of described liner is arranged at the inside of described gasket base, and uper side surface also is provided with groove.
Described return mechanism is a spring.
The uper side surface of described liner can be used for placing weld assembly.
Compared with prior art, the utlity model has following advantage:
The tool structure that has the internal-expansion type air bag that the utility model provides, comprise liner, gasket base and return mechanism, also comprise air bag and air bag seat, wherein, air bag is arranged at the outside of gasket base bottom, and is built in the cavity of air bag seat inside, and the bottom of gasket base then is arranged in the through hole inboard of air bag seat uper side surface, the distance at these through hole two ends also length with the gasket base uper side surface is identical, moves up and down in air bag seat inside thereby be convenient to gasket base.Air bag adopts inflatable high temperature resistant tracheae to make, and the left and right sides is respectively the circular arc type structure.The utility model serviceability is reliable and stable, can effectively eliminate the misalignment phenomenon of butt joint, simultaneously can produce and obtain maximum is the tension force of 30kg/cm, not only can increase substantially the size of tension force, the swelling effect of circumferencial direction is kept evenly, thereby fully guaranteed the radian of assembly after the swelling.In addition,, also alleviated the total quality of frock greatly, made it can fully satisfy the requirement of large-diameter cylinder body welding procedure because its mounting structure is compact to design rationally.
Description of drawings
Fig. 1 is the utility model user mode structural representation.
The main element symbol description is as follows:
1 air bag seat, 2 air bags
3 gasket bases, 4 liners
5 grooves, 6 welding work pieces
7 welding work pieces
The specific embodiment
For clearer statement the utility model, the utility model will be further described below in conjunction with accompanying drawing.
The utility model provides a kind of tool structure that has the internal-expansion type air bag, comprise liner, gasket base and return mechanism, also comprise air bag and air bag seat, air bag is arranged at the outside of gasket base bottom, and be built in the cavity of air bag seat inside, and adopt inflatable high temperature resistant tracheae to make, its left and right sides is respectively the circular arc type structure.
The uper side surface of air bag seat also is provided with through hole, and the distance at these through hole two ends is identical with the length of gasket base uper side surface.The bottom of gasket base is arranged in the inboard of through hole.Return mechanism is a spring.
Fig. 1 is the utility model user mode structural representation, comprises air bag seat 1, air bag 2, gasket base 3 and liner 4.Air bag 2 adopts inflatable high temperature resistant tracheae to make, and its left and right sides is respectively the circular arc type structure.Air bag 2 is arranged at the bottom downside of gasket base 3, and air bag 2 and gasket base 3 all are arranged in the cavity of inside of air bag seat 1.The uper side surface of air bag seat also is provided with through hole (not describing among the figure), distance between the two ends of this through hole uper side surface is identical with length between the gasket base uper side surface two ends, the two ends, bottom of gasket base also are arranged in the inner surface of this through hole respectively, thereby when guaranteeing that gasket base moves up and down in the cavity of air bag seat inside, can be by its inner disengaging.The bottom of liner 4 is arranged at the inside of gasket base 3, and its uper side surface is used to place weld assembly to be welded, in addition, also is provided with groove 5 at the uper side surface of liner 4.Weld assembly by two block welding workpiece 6 with constitute after welding work pieces 7 docks, wherein, the docking point of two block welding workpiece is that benchmark docks with the central point at groove 5 two ends.
When air bag is inflated when swelling, thereby promote gasket base and liner moves up, touch weld assembly until liner.In the continuous pressure process of air bag, its active force finally by liner conduct to weld assembly on the edge fit, and portion forces weld assembly to deform till two pairs of edge fits meet the requirement of no misalignment within it, and represent then that the inner surface of liner and weld assembly fits fully this moment.Air bag not only can increase substantially the size of tension force after inflation, the swelling effect of circumferencial direction is kept evenly, thereby fully guaranteed the radian of assembly after the swelling, satisfies the major applications occasion fully.This shows that tension force depends on the contact width value of air bag and liner clamp.After welding was finished, when the air bag pressure inside was discharged, gasket base and liner moved to the bottom of air bag seat under the return spring effect of (showing description among the figure), thereby whole frock is shifted out cylindrical shell.
In sum, core component of the present utility model is the high temperature resistant air bag of type inflatable, air bag is placed in the narrow inner space, thereby the swelling size of air bag is limited.When air bag is filled with air, under the effect of air pressure, expand, the surface of air bag can tightly be fitted in the inner surface of the restricted quarter.According to the characteristic of gas pressure, air bag fits with it, and to be that air pressure multiply by contact area long-pending for active force on surface.This principle is identical with the principle of cylinder, and its difference is that air bag can obtain than the more contact area of cylinder, thereby can produce bigger active force.The utility model is owing to adopt the inner swelling structure of gasbag-type, therefore can produce and obtain maximum is the tension force of 30kg/cm, not only can effectively eliminate the misalignment of butt joint, guarantee welding quality, can also increase substantially the size of tension force, the swelling effect of air bag circumferencial direction is kept evenly, thereby fully guaranteed the radian of assembly after the swelling.In addition,, also alleviated the total quality of frock greatly, made it can fully satisfy the requirement of butt weld in the large-diameter cylinder body welding procedure because its mounting structure is compact to design rationally.
More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (7)
1, a kind of tool structure that has the internal-expansion type air bag comprises liner, gasket base and return mechanism, it is characterized in that, also comprises air bag and air bag seat, and described air bag is arranged at the outside of described gasket base bottom, and is built in the cavity of described air bag seat inside.
2, the tool structure that has the internal-expansion type air bag as claimed in claim 1 is characterized in that, described air bag adopts inflatable high temperature resistant tracheae to make, and the left and right sides is respectively the circular arc type structure.
3, the tool structure that has the internal-expansion type air bag as claimed in claim 1 is characterized in that, the uper side surface of described air bag seat is provided with through hole, and the distance at described through hole two ends is identical with the length of described gasket base uper side surface.
4, the tool structure that has the internal-expansion type air bag as claimed in claim 1 is characterized in that, the bottom of described gasket base is arranged in the inboard of described through hole.
5, the tool structure that has the internal-expansion type air bag as claimed in claim 1 is characterized in that, the bottom of described liner is arranged at the inside of described gasket base, and uper side surface also is provided with groove.
6, the tool structure that has the internal-expansion type air bag as claimed in claim 1 is characterized in that, described return mechanism is a spring.
7, the tool structure that has the internal-expansion type air bag as claimed in claim 5 is characterized in that, the uper side surface of described liner can be used for placing weld assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201362989U CN201287246Y (en) | 2008-09-25 | 2008-09-25 | Fixture structure with inner-expansion air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201362989U CN201287246Y (en) | 2008-09-25 | 2008-09-25 | Fixture structure with inner-expansion air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201287246Y true CN201287246Y (en) | 2009-08-12 |
Family
ID=40978919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201362989U Expired - Lifetime CN201287246Y (en) | 2008-09-25 | 2008-09-25 | Fixture structure with inner-expansion air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201287246Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829838A (en) * | 2010-05-25 | 2010-09-15 | 江苏振光电力设备制造有限公司 | Welding method |
| CN103586622A (en) * | 2013-10-29 | 2014-02-19 | 中外合资沃得重工（中国）有限公司 | Circulating water cooling liner device for welding and application method of liner device |
| CN104772626A (en) * | 2015-04-24 | 2015-07-15 | 艾美特焊接自动化技术(北京)有限公司 | Milling and welding integrated device for upper and lower circular seams in bottom of storage box |
| CN109262536A (en) * | 2018-11-16 | 2019-01-25 | 宁波智能制造技术研究院有限公司 | A kind of horizontal circumference special-shaped shell body protective materials semi-automatic assembling device |
| CN109290979A (en) * | 2018-11-19 | 2019-02-01 | 宁波智能制造技术研究院有限公司 | A kind of circumference special-shaped shell body protective materials assembly tooling of loading by air bag |
| CN109290983A (en) * | 2018-11-26 | 2019-02-01 | 宁波智能制造技术研究院有限公司 | A kind of guide type circumference special-shaped shell body protective materials assembly tooling of loading by air bag |
| CN110860843A (en) * | 2019-12-04 | 2020-03-06 | 田祥 | Positioning fixture for combined splicing of galvanized steel sheets and use method thereof |
| CN112945029A (en) * | 2021-01-29 | 2021-06-11 | 哈尔滨工业大学 | Flexible clamping tool based on inflation deformation |
| CN112945029B (en) * | 2021-01-29 | 2024-05-03 | 哈尔滨工业大学 | Flexible dress card frock based on inflation deformation |
-
2008
- 2008-09-25 CN CNU2008201362989U patent/CN201287246Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829838A (en) * | 2010-05-25 | 2010-09-15 | 江苏振光电力设备制造有限公司 | Welding method |
| CN103586622A (en) * | 2013-10-29 | 2014-02-19 | 中外合资沃得重工（中国）有限公司 | Circulating water cooling liner device for welding and application method of liner device |
| CN103586622B (en) * | 2013-10-29 | 2016-02-24 | 中外合资沃得重工（中国）有限公司 | Welding recirculated water cooling cushion device and using method |
| CN104772626A (en) * | 2015-04-24 | 2015-07-15 | 艾美特焊接自动化技术(北京)有限公司 | Milling and welding integrated device for upper and lower circular seams in bottom of storage box |
| CN109262536A (en) * | 2018-11-16 | 2019-01-25 | 宁波智能制造技术研究院有限公司 | A kind of horizontal circumference special-shaped shell body protective materials semi-automatic assembling device |
| CN109290979A (en) * | 2018-11-19 | 2019-02-01 | 宁波智能制造技术研究院有限公司 | A kind of circumference special-shaped shell body protective materials assembly tooling of loading by air bag |
| CN109290983A (en) * | 2018-11-26 | 2019-02-01 | 宁波智能制造技术研究院有限公司 | A kind of guide type circumference special-shaped shell body protective materials assembly tooling of loading by air bag |
| CN110860843A (en) * | 2019-12-04 | 2020-03-06 | 田祥 | Positioning fixture for combined splicing of galvanized steel sheets and use method thereof |
| CN112945029A (en) * | 2021-01-29 | 2021-06-11 | 哈尔滨工业大学 | Flexible clamping tool based on inflation deformation |
| CN112945029B (en) * | 2021-01-29 | 2024-05-03 | 哈尔滨工业大学 | Flexible dress card frock based on inflation deformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090812 |
|
| CX01 | Expiry of patent term |