Fixing Tooling for Lifting Mechanism Assembly and Its Accuracy Guarantee Method

Abstract

The invention provides a lifting mechanism combined body fixing tool which comprises a bottom plate, a left short shaft, a right short shaft and a pin shaft. The base is used for replacing an outer frame barrel section of a lifting mechanism combined body and is installed on the combined body. The left short shaft is used for replacing a left short shaft and a bearing of the lifting mechanism combined body and is in rigid connection with the lifting mechanism combined body. The right short shaft is used for replacing a right short shaft and a bearing of the lifting mechanism combined body andis in rigid connection with the lifting mechanism combined body. The pin shaft is used for replacing a left pin shaft and a right pin shaft of the lifting mechanism combined body. By means of the lifting mechanism combined body fixing tool and a precision guarantee method of the lifting mechanism combined body fixing tool, a special auxiliary tool is adopted for improving product rigidity in the mounting and debugging process, benchmark control is taken into consideration, it is ensured that the benchmark can be reasonably converted, accumulative errors are reduced, and the precision guaranteerequirement is indirectly met in a machining allowance eliminating manner. Compared with a gasket measuring and debugging method, in the lifting mechanism combined body fixing tool and the precisionguarantee method of the lifting mechanism combined body fixing tool, the coaxial error is smaller than 0.1 mm, the upper surface and lower surface parallelism is smaller than 0.05 mm, taper pin matching is achieved by 70% or higher, and the problem about guarantee of the assembly precision of the lifting mechanism combined body is effectively solved.

Description

technical field [0001] The invention relates to the field of aerospace assembly, in particular to a fixing tool for a lifting mechanism assembly and a method for ensuring its accuracy. Background technique [0002] Fig. 1 (a) is the three-dimensional structure schematic diagram of the lifting mechanism assembly in the prior art; Fig. 1 (b) is the right view structural representation of the lifting mechanism assembly in the prior art; Fig. 1 (c) is the prior art The left view structure schematic diagram of the lifting mechanism assembly in . refer to Figure 1a ~1c, the structure of the lifting mechanism assembly needs to ensure the assembly accuracy. It is necessary to use special tooling and assembly methods to ensure the accuracy requirements between the inner and outer frames, barrel sections, and taper pins of the lifting mechanism assembly, and to ensure that the accuracy of repeated assembly and disassembly remains consistent. sex. How to ensure the accuracy of corre...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a lifting mechanism assembly fixed tooling and its accuracy assurance method to solve the problem of how to ensure the accuracy of assembly and adjustment and the consistency of assembly and disassembly

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