Oil cylinder piston rod
A piston rod and oil cylinder technology, applied in the field of high-pressure hydraulic oil cylinders, can solve the problems such as the inability to realize automatic welding of rod ends, the inability to effectively control the appearance quality of weld seams, and the limitation of factory production efficiency, so as to achieve easy automatic welding and stable product quality , The appearance of the welding seam is beautiful
Inactive Publication Date: 2013-10-02
四川优机实业股份有限公司
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Problems solved by technology
The shape of the piston rod end with a V-shaped cut and the corresponding welding process basically cannot realize the automatic welding of the rod end, and the appearance quality of the weld cannot be effectively controlled, which limits the improvement of the factory's production efficiency.
Method used
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] like figure 1 , figure 2 , image 3 and Figure 4 The cylinder piston rod shown includes a piston rod 1 and a rod end 2, a positioning column 11 is arranged on the end surface of one end of the piston rod 1 and the positioning column 11 is coaxial with the piston rod 1, and the end of the rod end 2 connected to the piston rod 1 is A rod end groove 22 matching the shape of the positioning post 11 is provided on the end surface, the positioning post 11 is arranged in the rod end groove 22 and the solder 3 is located in the gap between the positioning post 11 and the rod end groove 22 .
[0017] In practical application, in order to make the processing easier under the premise of ensuring the welding quality, such as figure 2 As shown, the busbar of the overall structure formed by the positioning column 11 (including the positioning column transition surface...
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The invention relates to the field of high-pressure hydraulic oil cylinders, in particular to an oil cylinder piston rod. The technical problem to be solved is to provide an oil cylinder piston rod which has superior welding quality and can be used for realizing automatic welding. According to the adopted technical scheme, the oil cylinder piston rod comprises a piston rod and a rod end, wherein a positioning column is arranged on the end face of one end of the piston rod, and is coaxial with the piston rod; the end face of one end, which is connected with the piston rod, of the rod end is provided with a rod end groove matched with the shape of the positioning column; and the positioning column is arranged in the rod end groove, and a welding flux is positioned in a gap between the positioning column and the rod end groove. Due to the adoption of the positioning column, a high-temperature liquid welding flux can flow into the root part of a welding base material along the positioning column, and the strength of a welded product is enhanced greatly. The oil cylinder piston rod can be applied to oil cylinder piston rods having high requirements on welding strength.
Description
technical field [0001] The invention relates to the field of high-pressure hydraulic oil cylinders, in particular to an oil cylinder piston rod. Background technique [0002] At present, the production process of the piston rod of the hydraulic cylinder is mostly butt welding between the piston rod and the rod end. When the two are spliced, the chamfer forms a V shape. However, due to the special shape of the V-shaped welding joint, spot welding is generally used to position the piston rod and the rod end when welding the piston rod and the rod end, and then the full welding process is performed manually. This manual welding process can basically meet the needs of use when the force on the rod end of the piston rod is not large. However, due to the limitations of its welding process, the gap between such V-shaped cuts is narrow, so the root of the welding base metal will not be penetrated, that is, the solder cannot fully fill the gap between the piston rod and the rod end...
Claims
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Inventor 不公告发明人
Owner 四川优机实业股份有限公司