Aerospace

Aerospace

Invech Precision Co.,Ltd with many UAV case,it reflected in the Partner that engaged in UAV & Manned Helicopter and Multi rotor Designs, Advanced Aircraft have over 30 years extensive experience. The technical director was the founder of three different companies from start up to full-production, while establishing all the separate departments, fabrication procedures, manufacturing-lines and training of the personnel in their respective jobs. From 2015 , we have start the first cooperation. The unique low cost, low loss,zero casualties, high efficiency, easy control, and reusable high maneuverability of the UAV have many advantages. Its use has been extended to three major fields of military, civilian, and scientific research, and will soon lead the tradition. Changes and innovations in the industry’s operating model. The UAV industry has extensive market space and development potential in military, civilian, consumer and other fields. In the next ten years, the civilian drone industry will enter a golden development period. This new blue ocean of billions of grades is about to usher in a wave of industrialization. With the rapid development of technology and the innovation of business model sin the Internet era, drones have become the most promising now, One of the fastest growing industries, the company will usher in an era of drone outbreak.

Example.Bushing

skills requirement

1.Castings must not have defects such as blisters and pores.     2.Material: ZCuSn5Zn5Pb5.     3.All chamfering C1.

1.Part drawing analysis

1) This piece is a thin-walled bushing, which is characterized by a thin hole wall and high requirements for dimensional accuracy, geometric tolerances and surface quality.

2) The part material is ZCuSn5Zn5Pb5.

2.Process analysis

1) The inner hole of this part is the benchmark, the dimensional accuracy and surface quality are required to be high, and the hole wall is thin. During fine boring, use a special fixture to locate on the outer circle, and use a nut gland to axially press the end face of ϕ130 to make the clamping force act axially to avoid deformation of the inner hole.

2) In order to ensure the verticality of each end face of the bushing and the coaxiality between the outer circle and the inner hole, the workpiece should be installed on the mandrel, and the inner hole should be used as the positioning reference to grind the outer circle and end face.

Bushing machining process (Unit: mm)

Part NameBlank speciesMaterialProduction type
BushingcastingZCuSn5Zn5Pb5Small batch
ProcessWork stepProcess contentEquipmentTools, measuring tools, auxiliary tools
10Casting
20Rough turningHorizontal lathe
1Use the self-centering chuck to clamp the outer circle of the blank, align, clamp, turn the end face, and turn it flat.45° elbow turning tool
2Turn ϕ105f7 × 34 to ϕ107 × 3490° external turning tool
3Turn φ130 to φ13390° external turning tool
4Drill hole ϕ90H6 to ϕ50ϕ50 twist drill
5Rough boring ϕ90H6 hole to ϕ88Boring tool
6Turn around, clamp the outer circle of ϕ105f7 with a soft claw, and turn the end face to ensure the total length 5445° elbow turning tool
7Turning ϕ105f6 × 12 to ϕ107 × 1290° external turning tool
30Fine turningCNC lathe
1Turn the left end face to the requirement, surface roughness Ra1. 6μm35° turning tool
2Turning ϕ105f7, leaving a grinding allowance of 0.4035° turning tool
3Turning size 34, left grinding allowance 0. 1035° turning tool
4Turning ϕ130 outer circle to requirement, surface roughness Ra3. 2μm35° turning tool
5Turning holes and outer chamfers C135° turning tool
6Turn around. Turning the right end face, leaving a grinding allowance of 0.10, ensuring a total length of 50. 135° turning tool
7Turning ϕ105f6, leaving a grinding allowance of 0.4035° turning tool
8Turning size 12, left grinding allowance 0. 1035° turning tool
9Boring the ϕ90H6 hole, leaving a grinding allowance of 0.40Boring tool
10Turning holes and outer chamfers C135° turning tool
40Grind the inner holeInternal grinding machine
1Place the workpiece in a special fixture, position it with the outer circle and end face of ϕ105f7 × 34, press the nut on the left side of size 12 axially with the nut gland, and grind the ϕ90H6 hole to the required surface roughness Ra0. 8μm
2Grind the right end face to the requirement, surface roughness Ra0. 8μm
50Grind the outer circleCylindrical grinder
1The work piece is sleeved on the taper mandrel, ground ϕ105f7 outer circle to the required surface roughness Ra0. 8μm
2Grind ϕ105f6 outer circle to the requirement, surface roughness Ra0. 8μm
3Rely on grinding size 34 on the right to the requirements, surface roughness Ra0. 8μm
4Rely on grinding size 12 to the left to the requirements, surface roughness Ra0. 8μm

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