Processing method for double-layered separating wall kind-part hole and assembly clamp of double-layered separating wall kind-part

Abstract

The invention provides a processing method of a double-layered separating wall kind- part hole. In order to ensure form-position tolerance of a high-precision hole of a double-layered separating wall kind-part, an assembly clamp is adopted to position the part at one time; when the part is turned over and a plurality of precision holes are bored on the separating walls on two side surfaces, the part is static relative to the assembly clamp, and parallelism of the two positioning surfaces of the assembly clamp are very high, so that the positioning criteria and alignment criteria are ensured to be consistent when part holes are bored on the two separating walls, so as to effectively eliminate the clamping deformation caused by uneven pressing force during secondary clamping when the part is turned over. Therefore, the requirements on the parallelism and reference edges of the two separating wall surfaces of the part are not high, the processing difficulty of the part is effectively reduced, and the product quality is stable.

Description

technical field [0001] The invention relates to the processing of high-precision holes in the field of aircraft manufacturing machinery processing, in particular to the processing method for the holes of double-layer separator parts. Background technique [0002] In the field of mechanical processing, many parts have high requirements for position and verticality. For example, parts used on aircraft wings have very high requirements for the correctness of the assembly position of parts due to the movement of aircraft wings. Therefore, the shape of parts holes The position tolerance requirements are very strict (usually the position degree is required to be within Φ0.1, and the vertical degree is within Φ0.05). It is difficult to guarantee the shape and position tolerance of the precision holes of such parts, and the product quality is not easy to guarantee. [0003] A double-layer partition part is used to control the movement direction of an important part of the aircraft. ...

AI Technical Summary

Problems solved by technology

[0002] In the field of mechanical processing, many parts have high requirements for position and verticality. For example, parts used on aircraft wings have very high requirements for the correctness of the assembly position of parts due to the movement of aircraft wings. Therefore, the shape of parts holes The position tolerance requirements are very strict (usually the position degree is required to be within Φ0.1, and the vertical degree is within Φ0.05). It is difficult to guarantee the shape and position tolerance of the precision holes of such parts, and the product quality is not easy to guarantee

[0003] A double-layer partition part is used to control the movement direction of an important part of the aircraft. The structure is complex, and the four precision holes on the two partitions are misaligned. The position of one hole relative to the other is Φ0.1, and the vertical The degree is Φ0.05, and both sides must be bored separately when boring

Due to the large amount of deformation of the groove formed by the two-sided partition and the processing error factors during the processing, it is difficult to ensure the parallelism of the two sides of the part. When turning over the processing, the reference hole will inevitably be inclined due to the parallelism error of the two positioning surfaces, which will affect the reference. The alignment accuracy of the hole, and the clamping deformation caused by the uneven pressing force during the second clamping of the flip will also affect the accuracy of the reference edge of the part. These factors will lead to machining errors in the hole position of the part, and it is difficult to guarantee the quality of the part

However, special tooling is used for processing, which is extremely difficult to manufacture, high economic cost, and inconvenient for workers to operate; if a five-axis machining center is used for one-time clamping and boring from both sides, the requirements for the machine tool are higher, and the processing cost is expensive.

Images