CN201529869U - Aluminum alloy barrel circumferential welding line mixing and friction welding supporting device - Google Patents
Aluminum alloy barrel circumferential welding line mixing and friction welding supporting device Download PDFInfo
- Publication number
- CN201529869U CN201529869U CN2009203106178U CN200920310617U CN201529869U CN 201529869 U CN201529869 U CN 201529869U CN 2009203106178 U CN2009203106178 U CN 2009203106178U CN 200920310617 U CN200920310617 U CN 200920310617U CN 201529869 U CN201529869 U CN 201529869U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- welding
- workpiece
- supporting mechanism
- conical drogue
- 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
Links
Images
Abstract
The utility model relates to a supporting device and discloses an aluminum alloy barrel circumferential welding line mixing and friction welding supporting device which comprises an outer elastic taper sleeve, a compressing taper sleeve, a connector, an inner elastic sleeve, a hydraulic supporting mechanism and an idler wheel supporting mechanism, wherein the outer elastic taper sleeve is matched with a small gap of an outer wall of a workpiece, the compressing taper sleeve is sleeved outside the outer elastic taper sleeve, the compressing taper sleeve and the outer elastic taper sleeve adjust the compression degree through the connector, the inner elastic sleeve outer wall is matched with the small gap of the inner wall of the workpiece, the hydraulic supporting mechanism can squeeze the inner elastic sleeve to enable the inner elastic sleeve to deform and expand and to clung with the workpiece, and the idler wheel supporting mechanism is used to support workpieces. The aluminum alloy barrel circumferential welding line mixing and friction welding supporting device adopts elastic taper sleeve type structures to expand rigid supporting rings through utilizing a hydraulic method, guarantees tight clinging with the inner surface of accessories of the barrel, the product has enough rigidity in welding, locking force can be applied on the outer surface of the barrel to enable the tube body and the inner surface supporting device to finish clinging, and the welding upsetting force applied in the welding process can be supported by the external idler wheel mechanism to satisfy the circumferential welding line welding demands of the barrel.
Description
Technical field
The utility model relates to a kind of bracing or strutting arrangement, specifically is applied to the support to cylindrical shell circumferential welded seam friction stir welding.
Background technology
The agitating friction welding technology is an emerging in recent years solid phase interconnection technique, is mainly used in aluminum alloy plate materials splicing, product moulding, circumferential welded seam welding etc., can realize that various aluminium alloy equal strength connect.Therefore, on aluminum alloy part, obtained extensive use.But the essential three technology of agitating friction welding technology comprises: stirring-head structure, effective technological parameter and rational tool structure.The reasonability of tool structure directly has influence on welding quality, production efficiency, production cost and the labour intensity of product, therefore we can say that the tool structure of friction stir welding is to pin down the key technology that this technology further develops equally.
At present, the tool structure that aluminium alloy cylindrical body circumferential welded seam friction stir welding is taked mainly contains two kinds, and a kind of is single-point hydraulic pressure supporting construction, and another kind is the integral rigidity supporting construction.All there is the defective of self in two kinds of support schemes, mainly show: single-point hydraulic pressure supporting construction frock is in the friction stir welding process, cylinder part is in the resiliency supported, along with the variation of welding upset force, single-point hydraulic pressure supports thereupon and changes, and single-point support contact area is little, be difficult to guarantee to align with the stirring-head position, directly influence the welding quality of product, therefore, use less for single-point hydraulic pressure supporting construction at present.The integral rigidity supporting construction then is to use comparatively general a kind of structure, welding process is reliable and stable, owing to be that integral rigidity supports during the cylindrical shell welding, frock must be fitted good with cylinder inner surface, otherwise influence welding quality, frock and product gap are very little for this reason, but cause the assembling and the dismounting difficulty of cylindrical shell and frock like this, operating efficiency is very low, is difficult to adapt to the production in enormous quantities needs.
The utility model content
Technical problem to be solved in the utility model provides a kind of aluminium alloy cylindrical body circumferential welded seam friction stir welding bracing or strutting arrangement, it has the elastic conical drogue of employing formula structure, utilize hydraulic method to strut rigid support ring, fit tightly with assurance and cylinder part inner surface, have enough rigidity during the product welding, outer surface at cylindrical shell applies certain coupling mechanism force, cylindrical shell and inner surface bracing or strutting arrangement are finished applying, support the welding upset force that is applied in the welding process by the idler wheel mechanism that adds, satisfy the characteristics of cylindrical shell circumferential welded seam welding requirements.
For solving the problems of the technologies described above, a kind of aluminium alloy cylindrical body circumferential welded seam friction stir welding bracing or strutting arrangement that the utility model provides is characterized in that, comprise outer elastic conical drogue, compress tapered sleeve, connector, interior resilient sleeve, hydraulic pressure supporting mechanism and roller supporting mechanism,
Described outer elastic conical drogue outer wall is the structure that comprises taper, its inwall and the little matched in clearance of workpiece outer wall;
The described inwall that compresses tapered sleeve is consistent with the tapering of outer elastic conical drogue outer wall, compresses tapered sleeve and overlaps outside outside the elastic conical drogue, between the two compression fit;
Described connector is used to connect outer elastic conical drogue and compress tapered sleeve, can regulate to compress tapered sleeve and cooperate tightness degree with outer elastic conical drogue;
Resilient sleeve is the cirque structure that has tapered indentations in described, the outer wall of interior resilient sleeve and the little matched in clearance of workpiece inwall, and the inwall of interior resilient sleeve is provided with hydraulic pressure supporting mechanism locating piece;
Described hydraulic pressure supporting mechanism comprises hydraulic cylinder and circular cone, and described circular cone is connected with hydraulic cylinder, the tapered indentations position of resilient sleeve in the little head end of the effect inferior pyramidal piece of hydraulic cylinder can push, swelling of resilient sleeve strain and the applying of workpiece inwall in making;
Described roller supporting mechanism contacts with the workpiece external diameter, is used for supporting workpiece, comprises roller and bracing frame, and described roller is installed on the bracing frame, and the external diameter of roller and described outer elastic conical drogue is fitted.
To being improved to of above-mentioned foundation structure, have the U-shaped open slot on the circumference of described outer elastic conical drogue, the strain diameter shrinks under external pressure.
Said structure further is improved to, described roller supporting mechanism also comprises adjusting device, adjusting device comprises leading screw and bearing, described bearing horizontal direction is provided with slide rail, described leading screw is connected with bracing frame, bracing frame is provided with slide block, and slide block is positioned on the described slide rail, moves on slide rail by regulating leading screw drive bracing frame.
Advantage of the present utility model is:
1. support on the basis of supporting with integral rigidity at single-point hydraulic pressure, utilize single-point hydraulic pressure to support and realize that integral rigidity supports: adopt elastic conical drogue formula structure, utilize hydraulic means to strut rigid support ring, fit tightly with assurance and cylinder part inner surface, outer surface at cylindrical shell applies certain coupling mechanism force simultaneously, cylindrical shell and inner surface bracing or strutting arrangement are finished applying, have enough rigidity when guaranteeing the product welding, support the welding upset force that is applied in the welding process by the idler wheel mechanism that adds, thereby satisfy the welding requirements of cylindrical shell circumferential welded seam, guarantee that weldquality is stable.When having solved available technology adopting single-point hydraulic pressure supporting construction, be difficult to guarantee to align with the stirring-head position, directly influence the welding quality of product, there is instable problem in the welding of cylinder part.
2. also just because the utility model adopts elastic conical drogue formula structure, utilize hydraulic means to strut rigid support ring, replace integral rigidity supporting construction in the prior art, make that the device quality is light and handy, and be easy to dismounting.When having solved available technology adopting integral rigidity structure, the problem of frock heaviness, cylindrical shell mounting or dismounting difficulty.Thereby improved production efficiency, reduced production cost and labour intensity.
3. utilize adjusting device to regulate the roller supporting mechanism, make the roller spacing to regulate easy operating according to the cylindrical shell external diameter of required processing.
4. the utility model can be applied to domestic air mail, the aerospace system agitating friction is welded in big thickness, large diameter aluminium alloy cylindrical shell shaping aspect, for the aspect that reduces production costs provides a kind of effective method.
The utility model processing technology is good, and is simple in structure, cost is lower, is convenient to manually-operated, practical, result of use good, for the welding of follow-up similar products provides reference, is beneficial to and applies.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model structural representation.
Fig. 3 is a single-point hydraulic pressure supporting construction schematic diagram in the prior art.
Fig. 4 is a single-point hydraulic pressure supporting construction work schematic diagram in the prior art.
Fig. 5 is an integral rigidity supporting construction schematic diagram in the prior art.
Wherein, the 1-workpiece, the outer elastic conical drogue of 2-, 3-compresses tapered sleeve, resilient sleeve in the 4-connector, 5-, 6-circular cone, 7-hydraulic cylinder, the 8-locating piece, 9-roller, 10-bracing frame, 11-leading screw, the 12-bearing, 13-driving disc spacing pressing, 14-clutch plate, 15-force-bearing pin, the 16-connector, 17-load axle, 18-auxiliary wheel, the 19-main wheel, 20-transition disc I, 21-transition disc II.
The specific embodiment
At first, with reference to the utility model structural representation shown in Figure 1 and the utility model structural representation shown in Figure 2, each building block of the present utility model is processed, is assembled by the cylindrical shell model structure of required welding:
The major part of circular cone 6 and the top of hydraulic cylinder 7 are connected and fixed, form the hydraulic pressure supporting mechanism, be fixed in the interior resilient sleeve 5, and be assembled to together on the weld jig, put workpiece 1 again.Interior resilient sleeve 5 is for having the cirque structure of tapered indentations, and the little matched in clearance of inwall of its outer wall and workpiece 1 is provided with the locating piece with hydraulic pressure supporting mechanism location on the inwall of interior resilient sleeve 5.Under the effect of hydraulic cylinder 7, the tapered indentations position of resilient sleeve 5 in the little head end of circular cone 6 can push, the inwall of resilient sleeve 5 strain swellings and workpiece 1 is fitted in making.
Elastic conical drogue 2 and compress tapered sleeve 3 outside on the outer wall of workpiece 1, loading onto respectively, by connector 4 with outer elastic conical drogue 2 with compress tapered sleeve 3 and force together, the outer wall of outer elastic conical drogue 2 is the structure that comprises taper, its inwall and the little matched in clearance of workpiece outer wall have the U-shaped open slot on the circumference of outer elastic conical drogue; The inwall that compresses tapered sleeve 3 is consistent with the tapering of outer elastic conical drogue 2 outer walls, compressing tapered sleeve 3 overlaps outside outside the elastic conical drogue, between the two by connector 4 compression fit, and utilize connector 4 adjustings to compress tapered sleeve 3 and the tightness degree that outer elastic conical drogue 2 cooperates, make outer elastic conical drogue 2 tightly be pressed in workpiece 1 outer surface.
Assembling roller supporting mechanism: roller 9 is assembled on the bracing frame 10, bracing frame 10 is connected with the bearing 11 of adjusting device, in order to realize condition by adjusting device pair roller spacing, on one side roller 9 wherein can be fixed on the bearing 11, the roller 9 of another side is connected with leading screw 11 by bracing frame 10, slide block is installed in the lower end of bracing frame 10, on bearing 11, slideway is set, the roller that the bracing frame that is connected with leading screw 11 10 driven be attached thereto by rotating threaded shaft 11 9 moves on slide rail by slide block, regulates the spacing between the roller of both sides.Also the bracing frame 10 that both sides roller 9 connects all can be installed on the leading screw 11, on the leading screw 11 to revolve a direction relative, during elected dress leading screw 11 bracing frame 10 on both sides is done in opposite directions or motion dorsad, thus the spacing of adjusting both sides roller 9.The roller supporting mechanism that utilization assembles supports workpiece 1, guarantees that the external diameter of roller 9 and outer elastic conical drogue 2 is fitted.
After aluminium alloy cylindrical body circumferential welded seam friction stir welding bracing or strutting arrangement is used, the allowance of aluminium alloy cylindrical body is under control on the one hand, in it, the 3mm of the allowance of outer surface during by former single-point hydraulic structure frock is reduced to present 1mm, the bigger saving cost of raw material and the machining cost of subsequent product, improved the stability of aluminium alloy cylindrical body welding quality simultaneously, can guarantee effectively that type product friction stir welding 100% is qualified, on the other hand than having obtained effective minimizing on the integral rigidity supporting tool weight, be reduced to existing not enough 300Kg from the 1200Kg of former integral rigidity supporting construction, effectively reduce operation easier and labour intensity, effectively improve simultaneously the installation time of frock and aluminium alloy cylindrical body, improved production efficiency, reduced production cost.
It should be noted last that, the above specific embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. an aluminium alloy cylindrical body circumferential welded seam friction stir welding bracing or strutting arrangement is characterized in that, comprise outer elastic conical drogue, compress tapered sleeve, connector, interior resilient sleeve, hydraulic pressure supporting mechanism and roller supporting mechanism,
Described outer elastic conical drogue outer wall is the structure that comprises taper, its inwall and the little matched in clearance of workpiece outer wall;
The described inwall that compresses tapered sleeve is consistent with the tapering of outer elastic conical drogue outer wall, compresses tapered sleeve and overlaps outside outside the elastic conical drogue, between the two compression fit;
Described connector is used to connect outer elastic conical drogue and compress tapered sleeve, can regulate to compress tapered sleeve and cooperate tightness degree with outer elastic conical drogue;
Resilient sleeve is the cirque structure that has tapered indentations in described, the outer wall of interior resilient sleeve and the little matched in clearance of workpiece inwall, and the inwall of interior resilient sleeve is provided with hydraulic pressure supporting mechanism locating piece;
Described hydraulic pressure supporting mechanism comprises hydraulic cylinder and circular cone, and described circular cone is connected with hydraulic cylinder, the tapered indentations position of resilient sleeve in the little head end of the effect inferior pyramidal piece of hydraulic cylinder can push, swelling of resilient sleeve strain and the applying of workpiece inwall in making;
Described roller supporting mechanism contacts with the workpiece external diameter, is used for supporting workpiece, comprises roller and bracing frame, and described roller is installed on the bracing frame, and the external diameter of roller and described outer elastic conical drogue is fitted.
2. a kind of aluminium alloy cylindrical body circumferential welded seam friction stir welding bracing or strutting arrangement as claimed in claim 1 is characterized in that, has the U-shaped open slot on the circumference of described outer elastic conical drogue, and the strain diameter shrinks under external pressure.
3. a kind of aluminium alloy cylindrical body circumferential welded seam friction stir welding bracing or strutting arrangement according to claim 1 and 2, it is characterized in that, described roller supporting mechanism also comprises adjusting device, adjusting device comprises leading screw and bearing, described bearing horizontal direction is provided with slide rail, and described leading screw is connected with bracing frame, and bracing frame is provided with slide block, slide block is positioned on the described slide rail, moves on slide rail by regulating leading screw drive bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203106178U CN201529869U (en) | 2009-09-17 | 2009-09-17 | Aluminum alloy barrel circumferential welding line mixing and friction welding supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203106178U CN201529869U (en) | 2009-09-17 | 2009-09-17 | Aluminum alloy barrel circumferential welding line mixing and friction welding supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201529869U true CN201529869U (en) | 2010-07-21 |
Family
ID=42525279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203106178U Expired - Fee Related CN201529869U (en) | 2009-09-17 | 2009-09-17 | Aluminum alloy barrel circumferential welding line mixing and friction welding supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201529869U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500916A (en) * | 2011-10-30 | 2012-06-20 | 国营红阳机械厂 | Welding tooling of aluminium-alloy rotary body part with N sections of curved buses and welding method |
| CN102615459A (en) * | 2011-01-30 | 2012-08-01 | 上海狮百盛焊材科技有限公司 | Movable flexible interior support tooling equipment of crane large arm barrel and working method thereof |
| CN103302440A (en) * | 2013-06-28 | 2013-09-18 | 中国有色（沈阳）冶金机械有限公司 | Detachably combined supporting device for large tube processing |
| CN103737220A (en) * | 2014-01-21 | 2014-04-23 | 南京理工大学 | Internal supporting device for friction stir welding of closed barrel with reserved openings at centers of two ends |
| CN104169038A (en) * | 2012-02-09 | 2014-11-26 | 依赛彼公司 | Backing arrangement for use in friction stir welding |
| CN104400214A (en) * | 2014-11-24 | 2015-03-11 | 首都航天机械公司 | Device and method for measuring and controlling upsetting force and forward resistance of friction stir welding machine |
| CN104439691A (en) * | 2014-11-24 | 2015-03-25 | 首都航天机械公司 | Adaptive controller of upset force and forward resistance in friction stir welding |
| CN104588890A (en) * | 2014-12-31 | 2015-05-06 | 瑞安市激光应用工程示范中心有限公司 | Clamp for surfacing outer surface of thin-wall annular workpiece |
| CN104668306A (en) * | 2015-03-14 | 2015-06-03 | 郑英 | Production method of ultra-large-diameter thin-walled pressure-resistant aluminum alloy pipe |
| CN104889561A (en) * | 2014-03-07 | 2015-09-09 | 青岛大仓管道防腐保温器材有限公司 | Steel pipe connecting friction welding machine |
| CN105729003A (en) * | 2016-05-10 | 2016-07-06 | 江苏天明特种车辆有限公司 | Breakwater propulsion device for intelligent tank plugging of tank truck |
| CN106394936A (en) * | 2016-09-21 | 2017-02-15 | 中国运载火箭技术研究院 | Double-guide-rail storage tank mounting device and method |
| CN108672916A (en) * | 2018-06-19 | 2018-10-19 | 湖南文理学院 | A kind of friction welding apparatus of automotive hub |
| CN109048178A (en) * | 2018-10-29 | 2018-12-21 | 常州戚墅堰机车车辆配件工业有限公司 | A kind of automatic welding tooling of girth joint |
| CN110202253A (en) * | 2019-07-08 | 2019-09-06 | 天津市庚信达铝业有限公司 | A kind of agitating friction weldering clamping device and three-dimensional welding equipment |
| CN110666336A (en) * | 2019-09-29 | 2020-01-10 | 重庆科技学院 | Rolling type inner support system for friction stir welding |
| CN115284200A (en) * | 2022-08-15 | 2022-11-04 | 青岛寰宇乾堃航天特种设备有限公司 | Tool and method for realizing precision assembly and welding of aluminum alloy box/cylinder guide rail mounting seat |
-
2009
- 2009-09-17 CN CN2009203106178U patent/CN201529869U/en not_active Expired - Fee Related
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615459A (en) * | 2011-01-30 | 2012-08-01 | 上海狮百盛焊材科技有限公司 | Movable flexible interior support tooling equipment of crane large arm barrel and working method thereof |
| CN102615459B (en) * | 2011-01-30 | 2015-04-15 | 上海狮百盛焊材科技有限公司 | Movable flexible interior support tooling equipment of crane large arm barrel and working method thereof |
| CN102500916A (en) * | 2011-10-30 | 2012-06-20 | 国营红阳机械厂 | Welding tooling of aluminium-alloy rotary body part with N sections of curved buses and welding method |
| CN102500916B (en) * | 2011-10-30 | 2015-04-29 | 国营红阳机械厂 | Welding tooling of aluminium-alloy rotary body part with N sections of curved buses and welding method |
| CN104169038A (en) * | 2012-02-09 | 2014-11-26 | 依赛彼公司 | Backing arrangement for use in friction stir welding |
| CN103302440A (en) * | 2013-06-28 | 2013-09-18 | 中国有色（沈阳）冶金机械有限公司 | Detachably combined supporting device for large tube processing |
| CN103737220A (en) * | 2014-01-21 | 2014-04-23 | 南京理工大学 | Internal supporting device for friction stir welding of closed barrel with reserved openings at centers of two ends |
| CN103737220B (en) * | 2014-01-21 | 2015-11-18 | 南京理工大学 | The friction stir welding inner supporting device of its central band reserved opening closed cylinder in two ends |
| CN104889561A (en) * | 2014-03-07 | 2015-09-09 | 青岛大仓管道防腐保温器材有限公司 | Steel pipe connecting friction welding machine |
| CN104439691A (en) * | 2014-11-24 | 2015-03-25 | 首都航天机械公司 | Adaptive controller of upset force and forward resistance in friction stir welding |
| CN104400214A (en) * | 2014-11-24 | 2015-03-11 | 首都航天机械公司 | Device and method for measuring and controlling upsetting force and forward resistance of friction stir welding machine |
| CN104439691B (en) * | 2014-11-24 | 2015-12-02 | 首都航天机械公司 | A kind of agitating friction welding upset force and advance drag adaptive controller |
| CN104400214B (en) * | 2014-11-24 | 2016-01-20 | 首都航天机械公司 | A kind of friction stir welding lathe upset force and advance drag measure and control device and method |
| CN104588890A (en) * | 2014-12-31 | 2015-05-06 | 瑞安市激光应用工程示范中心有限公司 | Clamp for surfacing outer surface of thin-wall annular workpiece |
| CN104668306A (en) * | 2015-03-14 | 2015-06-03 | 郑英 | Production method of ultra-large-diameter thin-walled pressure-resistant aluminum alloy pipe |
| CN105729003A (en) * | 2016-05-10 | 2016-07-06 | 江苏天明特种车辆有限公司 | Breakwater propulsion device for intelligent tank plugging of tank truck |
| CN106394936A (en) * | 2016-09-21 | 2017-02-15 | 中国运载火箭技术研究院 | Double-guide-rail storage tank mounting device and method |
| CN106394936B (en) * | 2016-09-21 | 2019-04-09 | 中国运载火箭技术研究院 | A kind of double guide rail tank mounting devices and its installation method |
| CN108672916A (en) * | 2018-06-19 | 2018-10-19 | 湖南文理学院 | A kind of friction welding apparatus of automotive hub |
| CN108672916B (en) * | 2018-06-19 | 2020-08-14 | 湖南文理学院 | Friction welding device for automobile hub |
| CN109048178A (en) * | 2018-10-29 | 2018-12-21 | 常州戚墅堰机车车辆配件工业有限公司 | A kind of automatic welding tooling of girth joint |
| CN110202253A (en) * | 2019-07-08 | 2019-09-06 | 天津市庚信达铝业有限公司 | A kind of agitating friction weldering clamping device and three-dimensional welding equipment |
| CN110666336A (en) * | 2019-09-29 | 2020-01-10 | 重庆科技学院 | Rolling type inner support system for friction stir welding |
| CN110666336B (en) * | 2019-09-29 | 2021-06-22 | 重庆科技学院 | Rolling type inner support system for friction stir welding |
| CN115284200A (en) * | 2022-08-15 | 2022-11-04 | 青岛寰宇乾堃航天特种设备有限公司 | Tool and method for realizing precision assembly and welding of aluminum alloy box/cylinder guide rail mounting seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201529869U (en) | Aluminum alloy barrel circumferential welding line mixing and friction welding supporting device | |
| CN203887590U (en) | Automatic centring hydraulic clamp for automobile hub bore system machining | |
| CN106826316B (en) | A kind of pressing device of rotational workpieces | |
| CN202336639U (en) | Self-centering gear hobbing clamp | |
| CN113211144B (en) | Drilling fixture for main pin hole of steering knuckle with arm | |
| CN110561021A (en) | Circular workpiece welding clamping rotating mechanism | |
| CN210648069U (en) | Gas cylinder closing-in spinning wheel die | |
| CN202622437U (en) | Finish turning fixture for external convex and varying ellipse of piston of diesel | |
| CN201151038Y (en) | Positioning and clamping device for welding integrated abrasion ring of center plate and swing-bolster | |
| CN205915199U (en) | Thin wall spacer grinds uses device | |
| CN102430847B (en) | Automatic welding fixture for longitudinal seam welding of small-diameter thick-walled tube blanks | |
| CN110653482A (en) | Friction stir welding rolling supporting structure | |
| CN208557260U (en) | A kind of fixer for machining of alloy flange | |
| CN215394546U (en) | Improved installation structure of large-scale super-finishing machine swing head mechanism | |
| CN208427834U (en) | A kind of fixing tool for cylinder girth joint | |
| CN209856215U (en) | Lower holding type main shaft connecting structure of flat-die granulator | |
| CN110666336B (en) | Rolling type inner support system for friction stir welding | |
| CN202701751U (en) | Centering and adjusting device for assembling components | |
| CN113898738A (en) | Rinsing machine main shaft seal structure | |
| CN102989855A (en) | Flange manufacture tool | |
| CN207592693U (en) | A kind of novel adjustable ring spreading support device | |
| CN201669532U (en) | Anti-movement structure of welding roller frame | |
| CN201824126U (en) | Bearing pretightening and gap adjustment mechanism | |
| CN201889610U (en) | Secondary welding mould of excavator moving arm body | |
| CN218427301U (en) | Hobbing type conical surface appearance machining device for tapered welding joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20130917 |