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Precise composite measuring tool, sand core positioning method and aero-engine aluminum-magnesium alloy casting

A positioning method and sand core technology, applied in the direction of casting molds, cores, measuring devices, etc., can solve the problem that the dimensional control method cannot meet the dimensional accuracy of castings, so as to improve dimensional accuracy and casting quality, ensure accuracy, and simple structure Effect

Active Publication Date: 2019-03-19
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a precision compound measuring tool, a sand core positioning method and its application to solve the technical problem that the size control means in the traditional sand core combination process cannot meet the dimensional accuracy of castings

Method used

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  • Precise composite measuring tool, sand core positioning method and aero-engine aluminum-magnesium alloy casting
  • Precise composite measuring tool, sand core positioning method and aero-engine aluminum-magnesium alloy casting
  • Precise composite measuring tool, sand core positioning method and aero-engine aluminum-magnesium alloy casting

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specific Embodiment

[0039] Specific embodiments: S1: Coat the contact part of the sand core 3 and the casting box 2 with an adhesive, assemble the sand core 3 on the casting box 2, and perform initial positioning; S2: Pass the precision composite measuring tool 1 through the positioning pin 21 to Disassemble the connection in the positioning hole 111 of the mounting plate 11; S3: adjust the measuring rod 12 on the mounting plate 11 through the first control part 14 to adjust the distance that the measuring rod 12 falls into the center hole 31, reach the bottom of the sand core 3, and measure the sand The central position and angular position of the core 3, the sand core 3 can reach the bottom, indicating that the central position and angular position of the sand core 3 meet the requirements. The height is measured by setting up a height observation platform, and the short step surface is not higher than the plane of the positioning seat , when the high step surface is not lower than the plane of t...

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Abstract

The invention discloses a precise composite measuring tool, a sand core positioning method and application thereof. The precise composite measuring tool is used for being arranged on a casting box tomeasure and position a sand core on the casting box and includes a mounting plate which is supported on the casting box and detachably connected with the casting box; the mounting plate is provided with a first measuring piece for measuring the central position, angular position and height of the sand core assembled on the casting box and a second measuring piece for finding the locations of positioning holes of the sand core and conducting measuring location positioning on the sand core. The precise composite measuring tool is simple in structure and easy to clamp and disassemble. The first measuring piece achieves installation positioning of the complex sand core by adjusting the precision of the central position, angular position and height; by positioning the locations of the positioning holes of the sand core, the second measuring piece effectively prevents the situation that the measurement accuracy is low since complex parts of the sand core are blocked. Thus, the precision of the casting shape and the quality of a casting are ensured.

Description

technical field [0001] The invention relates to the field of aero-engine sand casting, in particular to a precision composite measuring tool. In addition, the present invention also relates to a sand core positioning method including the above-mentioned precision compound measuring tool and its application. Background technique [0002] The casing parts in aero-engines, such as the front casing, are generally large in size, thin in wall thickness, and complex in structure. The main shape is a spiral cone structure, and the constituent materials are generally high-temperature non-ferrous alloys. The dimensional accuracy requirements of aluminum-magnesium alloy castings for new aero-engines are becoming more and more stringent. At present, the dimensional requirements of the blank state of castings have been raised to CT6~CT7. The traditional dimensional control methods have been difficult to meet the dimensional requirements of design drawings. Advanced dimensional control m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/00G01B5/06G01B5/24B22C9/10
CPCB22C9/108G01B5/0004G01B5/003G01B5/061G01B5/24
Inventor 黄进刘吉荣欧阳春芳
Owner CHINA HANGFA SOUTH IND CO LTD
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