Precision control tool for welding titanium alloy thin-wall winding drum

A technology of precision control and titanium alloy, applied in the field of titanium alloy welding, it can solve the problem of difficult high-precision control of deformation of thin-walled reels of titanium alloy, and achieve the effects of ultra-high-precision welding, convenient installation, and prevention of deformation.

Pending Publication Date: 2021-12-03
LUOYANG SUNRUI TI PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a precision control tooling for welding titanium alloy thin-walled reels, so as to solve the problem that the existing tooling is difficult to control the deformation of titanium alloy thin-walled reels with high precision when welding titanium alloy thin-walled reels. question

Method used

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  • Precision control tool for welding titanium alloy thin-wall winding drum
  • Precision control tool for welding titanium alloy thin-wall winding drum
  • Precision control tool for welding titanium alloy thin-wall winding drum

Examples

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Embodiment 1

[0025] Such as Figure 1 to Figure 4 As shown, the precision control tooling for welding titanium alloy thin-walled rolls of this embodiment includes a clamping disc 3, which can be set according to different sizes of titanium alloy thin-walled rolls to be welded. Titanium alloy thin-walled reels are usually rolled into a cylindrical shape by titanium alloy thin plates, and are obtained by spot welding at the interface after curling. The clamping disc 3 is used to be sleeved in the thin-walled reel to be welded, along the The inner wall of the thin-walled reel is radially supported. In order to control the size of the thin-walled reel with high precision during welding, the clamping disc 3 includes a first disc body 301 and a second disc body 302, and the first disc body 301 and the second disc body 302. The two discs 302 are assembled together through the inclined surface 303 to form the clamping disc 3, that is, the first disc 301 and the second disc 302 can be two semicircu...

Embodiment 2

[0029] Different from Embodiment 1, in this embodiment, the inclined surface 303 and the axis of the clamping disc 3 form an included angle of 40°-50°, and the included angle is preferably 45°, because the inclined surface 303 of this angle makes the first disc body 301 When the second disc body 302 is subjected to axial pressure along the clamping disc 3, the relative displacement change can occur more stably, which is conducive to the stable dimensional change of the clamping disc 3 in the radial direction, and effectively avoids the first disc The body 301 and the second disk body 302 have a misalignment phenomenon.

Embodiment 3

[0031] The difference from the above-mentioned embodiment is that the materials used in the precision control tool for welding titanium alloy thin-walled drums in this embodiment are carefully selected materials, and the clamping disc 3 is made of a material with a higher thermal expansion coefficient than the titanium alloy. The coefficient of thermal expansion is slightly higher than that of titanium alloy.

[0032] The diameter tolerance of the finished titanium alloy reel is required to be within 0.5mm. In order to accurately control the dimensional accuracy, a material with a thermal expansion coefficient slightly higher than that of the titanium alloy is selected to make the clamping disc 3 after calculation. The thermal expansion coefficient of the titanium alloy is about 9×10 -6 / °C, the present invention selects 45# steel to make clamping disc 3, and the coefficient of thermal expansion of 45# steel is about 1.2×10 -5 / °C, after the titanium alloy thin-walled reel is ...

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Abstract

A precision control tool for welding a titanium alloy thin-wall winding drum comprises a clamping disc which is used for being arranged in the thin-wall winding drum to be welded in a sleeved mode and supporting the inner wall of the thin-wall winding drum in the radial direction of the thin-wall winding drum; the clamping disc is composed of a first disc body and a second disc body which are matched through bevels; and the precision control tool further comprises an adjusting device used for applying pressure to the first disc body and the second disc body in the axial direction of the clamping disc so as to drive the first disc body and the second disc body to move along the bevels, and then the outer diameter of the clamping disc is adjusted so that the inner wall of the thin-wall winding drum can be stably supported. Staggered mounting is achieved due to bevel butt joint of the clamping disc, the size of the clamping discs can be accurately controlled while tool installation is facilitated, it is guaranteed that the surface of a thin plate of the titanium alloy thin-wall winding drum is stressed stably and evenly, and the thin plate of the titanium alloy thin-wall winding drum is effectively prevented from deforming in the welding process.

Description

technical field [0001] The invention relates to the technical field of titanium alloy welding, in particular to a precision control tool for welding a titanium alloy thin-walled reel. Background technique [0002] Among aerospace structural materials, titanium alloys have achieved rapid development due to their excellent comprehensive properties. The deformation of titanium alloy sheet is large during welding, including lateral shrinkage, longitudinal shrinkage, bending deformation, etc. The deformation has certain complexity and diversity. It is easy to generate large welding residual stress, and it is easy to cause problems such as deformation of the weld seam. It will cause major problems for aviation and aerospace titanium alloy products that require extremely strict dimensional accuracy and cannot be processed. The existing graphite tooling has the following problems : It is very difficult to disassemble and assemble, and it needs to be knocked with a hammer; it cannot...

Claims

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Application Information

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IPC IPC(8): B23K37/04B23K37/00
CPCB23K37/0435B23K37/00
Inventor 郑申清田永武刘茵琪李渤渤杨学东
Owner LUOYANG SUNRUI TI PRECISION CASTING
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