CN104191096A - Welding structure of hydraulic cylinder jacket and processing technology thereof - Google Patents
Welding structure of hydraulic cylinder jacket and processing technology thereof Download PDFInfo
- Publication number
- CN104191096A CN104191096A CN201410234313.3A CN201410234313A CN104191096A CN 104191096 A CN104191096 A CN 104191096A CN 201410234313 A CN201410234313 A CN 201410234313A CN 104191096 A CN104191096 A CN 104191096A
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- Prior art keywords
- sheath
- cylinder body
- cylinder
- welding
- seam
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a welding structure of a hydraulic cylinder jacket and a processing technology thereof, and belongs to the technical field of hydraulic cylinders. The welding structure of the hydraulic cylinder jacket comprises a cylinder body, and a jacket fixed at one end of the cylinder body, wherein an inner hole stop port is formed in one end of the cylinder body; a positioning cylinder is arranged at one end of the jacket; an outer circular stop port is formed in the outer side of the positioning cylinder; the positioning cylinder of the jacket is inserted in the inner hole stop port of the cylinder body; a loop of U-shaped welding line is arranged on a radial seam formed by two end surfaces of the cylinder body and the jacket; the complete fusion in welding can be guaranteed by the distance from the bottom end of the welding line to the outer surface of the positioning cylinder; and the cylinder body and the jacket can be fixedly welded in the welding line. As the fitting positioning mode of the hydraulic cylinder jacket and the cylinder body is changed, the wall thickness in a welding bead is reduced, the complete fusion in welding is realized, the purpose of obtaining a finished product having no abutting welding lines and welding defects is achieved, and a sealing piece performing the reciprocating movement is protected from being damaged.
Description
Technical field
The present invention relates to hydraulic cylinder technical field, specifically a kind of hydraulic cylinder sheath Welding Structure and processing technology.
Background technology
The environment for use of excavator hydraulic cylinder is severe, uninterrupted working time is long, compression shock is large, the speed of service is fast; for guaranteeing its safety in utilization; conventionally can buffer structure be set at the end of travel of hydraulic cylinder and cushion high pressure; sort buffer structure is generally to strengthen wall thickness at cylinder barrel front end, and welding sheath is modal a kind of mode that strengthens buffering area wall thickness.The welding of sheath and cylinder body to be connected locate mode more, but all there is butt seam after welding, to reciprocating seal, there is larger damage in this.As processed respectively positioning spigot on cylinder body, sheath, the positioning cylinder of cylinder body is injected in the location endoporus of sheath, at cylindrical, weld, cylinder body inserts the general length of sheath endoporus at 10mm-20mm, and the cylinder body place thickness inserting is thicker, what when welding, merge is only cylinder body cylindrical, and the binding face of cylinder body and sheath does not really combine, and has certain gap.Hydraulic cylinder in use seal moves back and forth, and through this gap, surely can cause damage to seal, affects seal durability.Therefore this kind of structure is generally used for seal and only at assembling stage, crosses the hydraulic cylinder of seam.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of hydraulic cylinder sheath Welding Structure and processing technology.
The present invention is achieved through the following technical solutions: a kind of hydraulic cylinder sheath Welding Structure, comprises cylinder body and the sheath that is fixed on cylinder body one end; There is endoporus seam described cylinder body one end, and there is positioning cylinder described sheath one end, and positioning cylinder outside is provided with cylindrical seam; The positioning cylinder of described sheath inserts the endoporus seam of cylinder body, on the radial joint of cylinder body and the formation of sheath both ends of the surface, has the U-shaped weld seam of a circle, and the bottom of described weld seam can be melted completely when the distance assurance of positioning cylinder outer surface is welded; Described cylinder body and sheath are welded and fixed in commissure.
It is further: described positioning cylinder is cylindrical tube shape, and its internal diameter is less than sheath internal diameter.
The bottom of described weld seam is 1mm apart from the distance of positioning cylinder outer surface.
A hydraulic cylinder sheath technique for welding, the cylinder body of hydraulic cylinder and the structure of sheath, as described in claims 1 to 3, is characterized in that: comprise the following steps,
A, at cylinder body one end processing endoporus seam, at the sheath one end processing excircles seam with positioning cylinder;
B, the positioning cylinder of sheath is inserted to the endoporus seam of cylinder body, on the radial joint of cylinder body and the formation of sheath both ends of the surface, open the U-shaped weld seam of a circle;
C, cylinder body and sheath are welded and fixed in commissure;
D, cylinder body and sheath are carried out to scraping processing reaming, the finished product cylinder body after processing and the hole internal diameter of finished sheath are 0.5mm to the distance of weld seam bottom.
The present invention, by changing the locate mode that coordinates of hydraulic cylinder sheath and cylinder body, reduces the wall thickness at welding bead place, realizes the finished product that melts completely, reach while welding after processing without the object of butt-welded side seam and weld defect, thereby protects reciprocating seal to preserve from.
Accompanying drawing explanation
Fig. 1 is the welded schematic diagram of hydraulic cylinder sheath;
Fig. 2 is the structural representation of commissure in Fig. 1;
Fig. 3 be processing after finished product cylinder body and the structural representation of finished sheath;
Fig. 4 is the structural representation of the commissure after finished product in Fig. 3.
In figure: 1, cylinder body; 2, weld seam; 3, sheath; 31, positioning cylinder; 1', finished product cylinder body; 3', finished sheath.
The specific embodiment
Be below a specific embodiment of the present invention, existing the invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, a kind of hydraulic cylinder sheath Welding Structure, it comprises cylinder body 1 and sheath 3; There is endoporus seam cylinder body 1 one end, and there is positioning cylinder 31 sheath 3 one end, and positioning cylinder 31 is cylindrical tube shape, and its internal diameter is less than sheath 3 internal diameters, and positioning cylinder 31 outsides are provided with cylindrical seam; The positioning cylinder 31 of sheath 3 inserts the endoporus seam of cylinder bodies 1, on the radial joint forming, has the U-shaped weld seam 2 of a circle in cylinder body 1 and sheath 3 both ends of the surface, and apart from the distance of positioning cylinder 31 outer surfaces, to be 1mm can melt when guaranteeing welding completely in the bottom of weld seam 2; Cylinder body 1 is welded and fixed at weld seam 2 places with sheath 3.
As depicted in figs. 1 and 2, a kind of hydraulic cylinder sheath technique for welding, as shown in Figure 1, processing technology comprises the following steps for the cylinder body 1 of hydraulic cylinder and the structure of sheath 3:
A, at cylinder body 1 one end processing endoporus seam, at the sheath 3 one end processing excircles seams with positioning cylinder 31;
B, the positioning cylinder of sheath 3 31 is inserted to the endoporus seam of cylinder bodies 1, on the radial joint forming in cylinder body 1 and sheath 3 both ends of the surface, open the U-shaped weld seam 2 of a circle;
C, cylinder body 1 and sheath 3 are welded and fixed at weld seam 2 places;
D, cylinder body 1 and sheath 3 are carried out to scraping processing reaming, the finished product cylinder body 1' after processing and the hole internal diameter of finished sheath 3' are 0.5mm to the distance A of weld seam 2 bottoms.
In the present invention, sheath and cylinder body weld seam location place wall thickness is very little, in the time of can realizing welding, melts completely, reaches finished product after processing without the object of butt-welded side seam and weld defect; There is not butt-welded side seam in sheath and cylinder body, reciprocating seal is not existed to any damage, improves seal durability.
Claims (4)
1. a hydraulic cylinder sheath Welding Structure, comprises cylinder body (1) and is fixed on the sheath (3) of cylinder body one end; It is characterized in that: there is endoporus seam described cylinder body (1) one end, there is positioning cylinder (31) described sheath (3) one end, and positioning cylinder (31) outside is provided with cylindrical seam; The positioning cylinder (31) of described sheath (3) inserts the endoporus seam of cylinder body (1), on the radial joint forming in cylinder body (1) and sheath (3) both ends of the surface, have the U-shaped weld seam of a circle (2), the bottom of described weld seam (2) can be melted completely when the distance assurance of positioning cylinder (31) outer surface is welded; Described cylinder body (1) is located to be welded and fixed at weld seam (2) with sheath (3).
2. hydraulic cylinder sheath Welding Structure according to claim 1, is characterized in that: described positioning cylinder (31) is cylindrical tube shape, and its internal diameter is less than sheath (3) internal diameter.
3. hydraulic cylinder sheath Welding Structure according to claim 1, is characterized in that: the bottom of described weld seam (2) is 1mm apart from the distance of positioning cylinder (31) outer surface.
4. a hydraulic cylinder sheath technique for welding, the structure of the cylinder body of hydraulic cylinder (1) and sheath (3), as described in claims 1 to 3, is characterized in that: comprises the following steps,
A is at cylinder body (1) one end processing endoporus seam, at the sheath with positioning cylinder (31) (3) one end processing excircles seam;
B inserts the positioning cylinder of sheath (3) (31) the endoporus seam of cylinder body (1), on the radial joint forming, opens the U-shaped weld seam of a circle (2) in cylinder body (1) and sheath (3) both ends of the surface;
C locates cylinder body (1) and sheath (3) to be welded and fixed at weld seam (2);
D carries out scraping processing reaming to cylinder body (1) and sheath (3), and (1') the finished product cylinder body after processing is 0.5mm with finished sheath hole internal diameter (3') to the distance of weld seam (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234313.3A CN104191096A (en) | 2014-05-30 | 2014-05-30 | Welding structure of hydraulic cylinder jacket and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234313.3A CN104191096A (en) | 2014-05-30 | 2014-05-30 | Welding structure of hydraulic cylinder jacket and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN104191096A true CN104191096A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410234313.3A Pending CN104191096A (en) | 2014-05-30 | 2014-05-30 | Welding structure of hydraulic cylinder jacket and processing technology thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815772A (en) * | 2015-04-10 | 2015-08-05 | 江苏大学 | Vertical rocker arm nozzle spray pipe structure and processing technology thereof |
| CN106583953A (en) * | 2017-01-17 | 2017-04-26 | 临沂金利液压科技有限公司 | Novel cylinder barrel flange welding process |
| CN108222982A (en) * | 2018-03-02 | 2018-06-29 | 中煤北京煤矿机械有限责任公司 | Weld the column of high position-limit mechanism in pressure area zero |
| CN110328496A (en) * | 2019-08-01 | 2019-10-15 | 郑州煤矿机械集团股份有限公司 | Improve the manufacturing method of Barrel of Hydraulic Cylinders service life |
| CN112122767A (en) * | 2020-09-01 | 2020-12-25 | 山东本图液压科技有限公司 | Integral step type multistage oil cylinder machining process |
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| DE102006031365A1 (en) * | 2006-07-06 | 2008-01-17 | Franz Xaver Meiller Fahrzeug- Und Maschinenfabrik - Gmbh & Co Kg | Cylinder e.g. hydraulic cylinder, tube e.g. tubular piston, producing method for lorry, involves centering tube segments such that contact surfaces are positioned opposite to each other, where segments have smaller length than piston |
| EP2149690A2 (en) * | 2008-07-31 | 2010-02-03 | Hitachi Ltd. | Turbine rotor |
| CN102189349A (en) * | 2010-02-12 | 2011-09-21 | 通用电气公司 | Horizontal welding method and joint structure therefor |
| CN102517491A (en) * | 2011-12-24 | 2012-06-27 | 徐州徐工液压件有限公司 | Cylinder barrel of oil cylinder of crane and processing process thereof |
| CN103707008A (en) * | 2013-12-11 | 2014-04-09 | 青岛星晨机床有限公司 | Processing technology of oil cylinder barrel |
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2014
- 2014-05-30 CN CN201410234313.3A patent/CN104191096A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006031365A1 (en) * | 2006-07-06 | 2008-01-17 | Franz Xaver Meiller Fahrzeug- Und Maschinenfabrik - Gmbh & Co Kg | Cylinder e.g. hydraulic cylinder, tube e.g. tubular piston, producing method for lorry, involves centering tube segments such that contact surfaces are positioned opposite to each other, where segments have smaller length than piston |
| EP2149690A2 (en) * | 2008-07-31 | 2010-02-03 | Hitachi Ltd. | Turbine rotor |
| CN102189349A (en) * | 2010-02-12 | 2011-09-21 | 通用电气公司 | Horizontal welding method and joint structure therefor |
| CN102517491A (en) * | 2011-12-24 | 2012-06-27 | 徐州徐工液压件有限公司 | Cylinder barrel of oil cylinder of crane and processing process thereof |
| CN103707008A (en) * | 2013-12-11 | 2014-04-09 | 青岛星晨机床有限公司 | Processing technology of oil cylinder barrel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815772A (en) * | 2015-04-10 | 2015-08-05 | 江苏大学 | Vertical rocker arm nozzle spray pipe structure and processing technology thereof |
| CN104815772B (en) * | 2015-04-10 | 2017-07-18 | 江苏大学 | A kind of vertical rocker-arm spray head nozzle structure and its processing technology |
| CN106583953A (en) * | 2017-01-17 | 2017-04-26 | 临沂金利液压科技有限公司 | Novel cylinder barrel flange welding process |
| CN108222982A (en) * | 2018-03-02 | 2018-06-29 | 中煤北京煤矿机械有限责任公司 | Weld the column of high position-limit mechanism in pressure area zero |
| CN108222982B (en) * | 2018-03-02 | 2023-09-12 | 中煤北京煤矿机械有限责任公司 | Stand column of zero-welding high-limit mechanism in pressure area |
| CN110328496A (en) * | 2019-08-01 | 2019-10-15 | 郑州煤矿机械集团股份有限公司 | Improve the manufacturing method of Barrel of Hydraulic Cylinders service life |
| CN112122767A (en) * | 2020-09-01 | 2020-12-25 | 山东本图液压科技有限公司 | Integral step type multistage oil cylinder machining process |
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Application publication date: 20141210 |