Space curve electron beam welding method
A technology of electron beam welding and space curve, which is applied in the direction of electron beam welding equipment, welding equipment, metal processing equipment, etc., can solve the problems that the three-dimensional curve in space cannot be continuously zoomed and variable section welding, etc., to achieve high welding efficiency and improve simulation Accurate accuracy, avoiding the effect of scrapping parts
Active Publication Date: 2020-02-14
CHINA HANGFA SOUTH IND CO LTD
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[0004] The invention provides a space curve electron beam welding method to solve the technical problem that the space three-dimensional curve continuous variable focal length and variable section welding cannot be realized in the prior art
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[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0030] refer to Figure 1-Figure 3 and Figure 6 , the preferred embodiment of the present invention provides a kind of spatial curve electron beam welding method, is used for welding the spatial three-dimensional weld seam curve of continuous non-uniform zoom variable section, and electron beam welding method comprises the following steps:
[0031] Pre-welding treatment: perform pre-welding treatment on the parts to be welded on the mother welding rotary part 10 and the to-be-welded rotary part 20 respectively.
[0032] Spot welding connection: spot welding connection is performed between the welding boss 21 and the connecting through hole 101 .
[0033] Clamping and alignment: Clamp and position the mother welding rotary part 10 on the working platform 30 of the...
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The invention discloses a space curve electron beam welding method. The space curve electron beam welding method includes the following steps that pre-welding treatment is performed; spot welding connection is performed; clamping and alignment are performed; a three-dimensional weld joint curve trajectory numerical control program is generated, specifically, a local coordinate system is set in a welding center, a three-dimensional weld joint curve is extracted, several extracted points are extracted on the three-dimensional weld joint curve through a mode of equichordal tolerance, then point position data of coordinates of an X axis, a Y axis and a Z axis of all the extracted points are obtained, the point position data of the coordinates of the Z axis of all the extracted points are converted into focusing electric currents which change relative to an original point of the local coordinate system, the weld joint thicknesses of all the extracted points are converted into correspondingelectron beam currents, and an electron beam welding program of a three-dimensional weld joint curve trajectory is compiled according to the point position data of the coordinates of the X axis and the Y axis of all the extracted points, the focusing electric current parameters and electron beam current parameters; and electron beam welding is performed, specifically the electron beam welding program is introduced into a control system of an electron beam welding machine, and electron beam welding is performed on the three-dimensional weld joint curve after the focusing electric current parameters of the original point of the local coordinate system are obtained.
Description
technical field [0001] The invention relates to the field of three-dimensional curved electron beam welding in space, in particular to a method for electron beam welding in spatial curved lines. Background technique [0002] On certain rotary parts, if a large-diameter mounting seat needs to be welded on the side wall, the weld seam is the intersecting line between the rotary body and the rotary body, as shown in the attached figure figure 1 As shown, it is a three-dimensional curve in space, as shown in the accompanying drawing figure 2 shown. The surface of the weld seam changes continuously with the curve, which in turn causes the change of the focal length; at the same time, due to the arbitrary intersecting angle of the two rotators, a thickness section with continuous and non-uniform changes along the intersecting curve is formed. During electron beam welding, due to the electron beam welding The mechanical axis of the machine only has two axes of X, Y and a turntab...
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IPC IPC(8): B23K15/00B23K15/02
CPCB23K15/00B23K15/0053B23K15/02
Inventor 袁南翔皮克松王海燕吴超付立泉刘杰
Owner CHINA HANGFA SOUTH IND CO LTD