Positioning tool for detecting welding seam defects of air inlet casing and judgment method

A technology of intake casing and positioning tooling, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, which can solve problems such as difficult to determine welds and small distances between welds, reduce internal stress and deformation, and reduce repair welding times , the effect of convenient operation

Pending Publication Date: 2021-11-30
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At present, film ray inspection is generally used for weld defect detection, but due to the narrow inner cavity of the support plate and the small distance between the welds on bot

Method used

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  • Positioning tool for detecting welding seam defects of air inlet casing and judgment method
  • Positioning tool for detecting welding seam defects of air inlet casing and judgment method
  • Positioning tool for detecting welding seam defects of air inlet casing and judgment method

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Embodiment Construction

[0022] In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention will be described in detail below through specific implementation manners in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, a positioning tool for detection of weld seam defects in the intake casing, including a fan-shaped support plate 2 and a support plate 3, one side of the fan-shaped support plate 2 is arc-shaped, and the arc-shaped end of the fan-shaped support plate 2 is connected to the inlet The inner arc of the inner ring of the air casing is closely attached, and the fan-shaped support plate 2 is a multi-layer sheet structure, which is assembled with multi-layer pins 1 according to the needs of actual parts, so as to facilitate matching with the inner circle of the inner ring of the air intake casing . In order to increase the thickness without increasing the weight, several gaskets are ar...

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Abstract

The invention relates to a positioning tool for detecting welding seam defects of an air inlet casing and a judgment method. The positioning tool comprises a fan-shaped supporting plate and a supporting plate sheet, wherein one side of the fan-shaped supporting plate is arc-shaped and is tightly attached to the inner arc of the inner ring of the air inlet casing, the supporting plate sheet is fixed on the fan-shaped supporting plate through a pin, the lower bottom edge of the supporting bottom sheet is a straight edge and coincides with the symmetric center of the arc-shaped edge, two U-shaped grooves are formed in the lower bottom edge side of the supporting plate sheet in parallel, the center line of the U-shaped groove close to the fan-shaped supporting plate coincides with the inner ring welding seam, the other U-shaped groove is away from the fan-shaped supporting plate and 10-30 mm away from the other U-shaped groove, cross laser devices are arranged in the U-shaped grooves, the cross light spot horizontal lines of the cross laser devices in the two U-shaped grooves coincide, and a power supply, a switch and a power amplifier are fixed on the supporting plate sheet, and the cross laser devices and the power amplifier are electrically connected with the power supply and the switch through conducting wires. According to the invention, on the premise of ensuring that the detection result is reliable and the detection efficiency is not reduced, accurate positioning of defects is realized.

Description

technical field [0001] The invention belongs to the technical field of weld defect detection, and in particular relates to a positioning tool and a determination method for detecting weld defects of an intake casing. Background technique [0002] The intake casing is an important part of the front end of the engine. The intake casing adopts the layout of the inner and outer rings, which are welded by the inner and outer rings and more than ten support plates. The plate and the protruding leaf-shaped part of the inner ring are connected by welding, because the support plate is a cavity structure, and the inner cavity of the support plate has two sizes (the support plate with a large inner cavity is a wide support plate, and the inner cavity is small) The support plate is a narrow support plate), so the gap between the two support plates is not equal, about 45mm-65mm. The cross-section of the strut is a sharp isosceles triangle, the two waists of the triangle are slightly con...

Claims

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Application Information

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IPC IPC(8): G01N29/04
CPCG01N29/04
Inventor 刘海强杜本莉王海亮夏志风单立志
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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