Preparation process of cold extrusion piston tube
A preparation process and a technology for a piston tube, applied in the field of piston tube, can solve the problems of low production efficiency of the piston tube, influence of the tensile strength of the tube body and the piston head, etc., and achieve the effects of improving the service life, simplifying the production process and reducing the processing process.
Active Publication Date: 2020-06-19
重庆志齐机械制造有限公司
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Problems solved by technology
However, if the precision control of the pipe body of the piston pipe and the threaded section of the piston head is not well controlled, the tensile strength of the connection between the pipe body and the piston head will be seriously affected, resulting in a potential safety hazard. At the same time, the production efficiency of the existing piston pipe is low
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[0029] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.
[0030] Such as Figure 1 to Figure 4 As shown, the preparation process of a cold-extruded piston tube provided in this embodiment includes the following steps:
[0031] S1: Prepare a clean tube body according to the design size, and the tube body 1 is used to prepare the piston tube; as shown in the figure
[0032] S2: Perform a flaring and thickening process on one end of the pipe body 1, so that the wall thickness of the flaring section of the pipe body 1 reaches the design thickness; figure 1 and figure 2 shown;
[0033] S3: Use mechanical processing equipment to perform annular groove processing on the fla...
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The invention discloses a preparation process of a cold extrusion piston tube. The process comprises the following steps that firstly, a tube body which is cleaned is prepared according to a design size, wherein the tube body is used for preparing the piston tube; then a flaring and thickening treatment procedure is performed at one end of the tube body, so that the wall thickness of a flared segment of the tube body reaches the design thickness; and finally, annular groove treatment is performed on the flared segment of the thickened tube body outer contour by adopting mechanical machining equipment, and an annular groove sharing the same axial center axis with the tube body is formed in the flared segment of the thickened tube body, wherein the annular groove is used for holding a pistonring. According to the preparation process provided by the invention, a threaded connection technology of a tube body and a piston head of a traditional piston tube is abandoned, the piston tube producing procedures are simplified, the number of production procedures of a single product is greatly decreased, and the production efficiency is improved; and moreover, bending and planishing treatmentis omitted, one machining procedure is saved, and the production efficiency is further improved.
Description
technical field [0001] The invention relates to the technical field of piston tubes, in particular to a preparation process of cold extruded piston tubes. Background technique [0002] The piston tube includes a tube body and a piston head set on the tube body. The traditional production process mainly adopts threaded connection technology, that is, the piston head adopts a cylindrical block, and the cylindrical block is provided with a connecting hole that is concentric with the central axis and penetrates axially. Tapping is carried out, and the end connecting the pipe body and the piston head is also tapped, and the connecting hole of the pipe body and the piston head is connected by thread; then, an annular groove concentric with the central axis of the piston head is set on the arc surface of the piston head, Annular grooves are used to accommodate piston rings. However, if the precision control of the pipe body of the piston pipe and the threaded section of the piston...
Claims
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 艾辉
Owner 重庆志齐机械制造有限公司