Plunger closing method and mold
A mold and plunger technology, which is applied in the plunger closing method and the field of molds, can solve the problems of difficult process, poor closing effect, and affecting the performance of plunger pump products, so as to improve the production pass rate, improve the closing effect, prevent deformation effect
Active Publication Date: 2020-05-19
BEIJING LANDSPACETECH CO LTD
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- Abstract
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- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The existing plunger closing method not only has poor closing effect, but also has a difficult process, which seriously affects the product performance of the plunger pump
Method used
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[0039] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. Spatially relative terms such as "below", "beneath", "under", "lower", "above", "on", "higher", etc. are used to facilitate description to explain the relative The orientation of two elements means that these terms are intended to encompass different orientations of the device in addition to orientations other than those shown in the figures. In addition, for example, "one element is on / under another element" may mean that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, sections, etc. and should not be taken as limitations. Similar terms refer to similar elements throughout the description.
[0040] For example, the plunger includes a plunger body 1 a...
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The invention provides a plunger closing-in method and a mold. The plunger closing-in method comprises the steps that a plunger body, a plunger head and the closing-in mold are provided; the plunger body, the plunger head and the closing-in mold are arranged in a mutually matched mode, wherein a matching part of the plunger body is arranged in an opening part of the plunger head, and the opening part is arranged in an annular extrusion piece; and the annular extrusion piece of the closing-in mold circumferentially extrudes a deformation part from the outer side of the plunger head, so that thedeformation part deforms towards the matching part synchronously, and the matching part is limited in the opening part through the deformation part. According to the plunger closing-in method and themold, the plunger head is circumferentially extruded by the annular extrusion piece, thus the plunger head deforms towards the plunger body synchronously and wraps the plunger body, the situations ofdeformation, cracks, chip off-falling and the like possibly generated in the closing-in process are effectively avoided, the closing-in effect of the plunger body and the plunger head is greatly improved, and the production pass rate of a plunger is increased.
Description
technical field [0001] The invention relates to the technical field of plunger pumps in aerospace engines, in particular to a plunger closing method and a mold. Background technique [0002] The plunger pump is a key component of an aerospace engine, and the plunger is a key component of a plunger pump. Usually, the plunger is composed of two parts: the plunger head and the plunger body. The closing technology of the plunger is a special process used to connect the plunger body and the plunger head, and to ensure that the plunger body can rotate flexibly at a certain angle in the plunger head without detachment. The closing technology of the plunger is the key technology in the production process of the plunger pump, and the quality of the closing of the plunger will affect the performance and life of the entire plunger pump. [0003] At present, the main method of the plunger closing method is: setting the plunger body and the plunger head on an ordinary lathe, and adopti...
Claims
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IPC IPC(8): B21D39/00B21D37/10
CPCB21D37/10B21D39/00
Inventor 王喜良李莹刘耀林李秀明葛明和王菊金康永来
Owner BEIJING LANDSPACETECH CO LTD