CN201359079Y - Welded-type piston component for finished products - Google Patents
Welded-type piston component for finished products Download PDFInfo
- Publication number
- CN201359079Y CN201359079Y CNU2009200362172U CN200920036217U CN201359079Y CN 201359079 Y CN201359079 Y CN 201359079Y CN U2009200362172 U CNU2009200362172 U CN U2009200362172U CN 200920036217 U CN200920036217 U CN 200920036217U CN 201359079 Y CN201359079 Y CN 201359079Y
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- China
- Prior art keywords
- piston
- welded
- component
- piston rod
- welding
- 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
The utility model discloses a welded-type piston component for finished products, and relates to a welded-type piston component for finished products used on an inclined hydraulic cylinder of a fork truck. The component is characterized in that the processing procedure of the prior piston component is changed in such a manner that firstly, a piston and a piston rod are processed into finished product sizes, and the piston rod is polished on a through-type polisher at the same time, one end of the piston rod is inserted into the hole of the piston in tight fit, a welding groove is formed on the inner hole on the outer end surface of the piston, and the piston and the piston rod are welded to form the piston component. A circular isolation groove is formed on the outer end surface of the piston, so that heat generated in welding is prevented from transmitting piston deformation to a sealed groove area, and out-of-tolerance dimensional precision and form-position tolerance of the sealed groove of the piston are avoided. The utility model has the advantages that the processing procedure of the piston component is simplified, and the production efficiency and the product quality level are improved, and the large-scale production and the batch production of the products are facilitated.
Description
Technical field
The utility model relates to a kind of engineering machinery, is specifically related to the finished product welding type piston rod assembly that uses on a kind of fork truck hydraulic tilt cylinder
Technical background
At present, domestic fork truck class hydraulic tilt cylinder piston assembly, its preparation process is: the Vehicle Processing of piston elder generation leaves enough allowances for finish to semi-finished product, with piston and the welding earlier of body of rod blank, carries out fine finishing again.Not only complex procedures, work efficiency are low, and dimensional accuracy of products and Geometrical Tolerance Principle be difficult to guarantee, are unfavorable for extensive, property production in batches.In addition, old-fashioned preparation process, its piston rod can't adopt the polishing of passing through type buffing machine, influences quality of product.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of finished product welding type piston assembly, its piston, piston rod are the manufactured good that are worked into the drawing requirement before welding, after piston rod polishes by buffing machine, one end drive fit is inserted in the hole of piston, again both is welded to form piston assembly.The heat that produces during for fear of welding makes the transmission of piston amount of deformation to the sealed groove zone, causes piston seal groove dimensions precision and form and position tolerance overproof, makes the isolated groove that goes in ring on the piston exterior edge face.Thereby simplify the manufacturing procedure of piston assembly, level improves production efficiency and product quality.
The utility model is realized with following technological scheme: a kind of finished product welding type piston assembly comprises: piston, piston rod, seal ring; Described piston rod one end drive fit is inserted in the hole of described piston, and is welded into weld bond with the outer end of piston; It is characterized in that: described piston and piston rod are manufactured good before welding; Described piston is made isolation channel on the exterior edge face, and described isolation channel is the groove that goes in ring.
Make bevel for welding on the endoporus of described piston exterior edge face.
The beneficial effects of the utility model are:
1, preparation process is simple, and is easy to process, manufacturing efficiency height, good product quality.
2, piston rod can polish in the polishing of passing through type buffing machine before welding.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A sectional drawing of Fig. 1
Among the figure: 1, piston, 1-1, isolation channel, 1-2, bevel for welding, 2 piston rods, 3, seal ring, 4, weld bond
Embodiment
As shown in Figure 1 and Figure 2: earlier piston 1, piston rod 2 are worked into the finished size of drawing requirement, simultaneously, piston rod polishes through the passing through type buffing machine; Piston rod 2 one end drive fits are inserted in the hole of piston 1, on piston 1 exterior edge face endoporus, make bevel for welding 1-2, again both are welded to form piston assembly.The heat that produces during for fear of welding makes the transmission of piston amount of deformation to the sealed groove zone, causes piston seal groove dimensions precision and form and position tolerance overproof, makes isolation channel 1-1 on piston 1 exterior edge face, and described isolation channel 1-1 is the groove that goes in ring.The utility model has changed original piston assembly manufacturing procedure, and what be decomposed into piston 1 and piston rod 2 is worked into finished product respectively separately.Thereby simplify the manufacturing procedure of piston assembly, the level that improves production efficiency and product quality helps extensive, the property production in batches of product.
Claims (2)
1, a kind of finished product welding type piston assembly comprises: piston (1), piston rod (2), seal ring (3); Described piston rod (2) one end drive fits are inserted in the hole of described piston (1), and are welded into weld bond (4) with the outer end of piston (1); It is characterized in that: described piston (1) and piston rod (2) are manufactured good before welding; Described piston (1) is made isolation channel (1-1) on the exterior edge face, and described isolation channel (1-1) is the groove that goes in ring.
2, according to claim 1 described finished product welding type piston assembly, it is characterized in that: make bevel for welding (1-2) on the endoporus of described piston (1) exterior edge face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200362172U CN201359079Y (en) | 2009-03-06 | 2009-03-06 | Welded-type piston component for finished products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200362172U CN201359079Y (en) | 2009-03-06 | 2009-03-06 | Welded-type piston component for finished products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359079Y true CN201359079Y (en) | 2009-12-09 |
Family
ID=41424843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200362172U Expired - Fee Related CN201359079Y (en) | 2009-03-06 | 2009-03-06 | Welded-type piston component for finished products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359079Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2716920A4 (en) * | 2011-06-03 | 2015-05-20 | Smc Kk | Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly |
-
2009
- 2009-03-06 CN CNU2009200362172U patent/CN201359079Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2716920A4 (en) * | 2011-06-03 | 2015-05-20 | Smc Kk | Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly |
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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: 20091209 Termination date: 20160306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |