? What is the process of processing the gearbox? - Yancheng XINLAN Precision Machinery Co., Ltd.

Yancheng XINLAN Precision Machinery Co., Ltd.

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What is the process of processing the gearbox?

Source: http://www.agricultural-gearbox.top/news603221.html时间:2021-04-29 09:39:00

Machining gearboxThe numerical control process of the lower cover of the component is as follows:

1. Cutting

Because the profile is extruded under high pressure,Gearbox processingThe compactness of the material is better than that of aluminum alloy die-casting, the internal defects of the material (such as blisters, etc.) are less, the strength is high, and the cutting performance is good.In addition, aluminum alloy has better oxidation and coloring performance, so it is selected after comprehensive consideration.The cross section of the extruded profile has a variety of sizes. We choose one that is slightly larger than the section of the part. The length can be cut by 5 parts. An aluminum profile has 5 parts. If one thousand parts are produced, it will be sawed out. More than two hundred materials.

2. Positioning and clamping

Machining gearboxThe preliminary work of the company needs to prepare a base plate, the base plate is clamped on the machine tool, and the aluminum material is locked on the base plate by screws. The processing idea is: first one by one more than XNUMX aluminum materials are processed on the A side, and then Clamp and process the B side on the reverse side.

Since machining positioning and centering are performed on the bottom plate, the parallelism of each surface of the bottom plate and the flatness of the upper and lower bottom surfaces are very important.In order to ensure the processing requirements, the bottom plate is processed as follows:

(1) The bottom plate is made of iron plate with a thickness of about 15mm.

(2) Use a grinder to grind the two large surfaces first, and place them on the machine for clamping.

(3) Four sides mill out straight edges and use them for centering to determine the machining origin.

(4) Write a drilling program, drill 4 positioning holes at each end of the bottom plate, and then manually tap the screws.The purpose of drilling several positioning holes is to quickly clamp and lock the workpiece.When processing the A surface feature, use the four screws of the bottom plate to lock the aluminum material.When machining the B surface feature, another 4 screw teeth are used.When processing the A side, the positioning requirements of the hexagon socket screws are not high, and the 4 screws have the function of locking and positioning.However, since the machining origin of side B must be coincident with the machining origin of side A, the 4 screws are only used for locking and cannot be used for positioning (the positioning method of side B is described in detail below).

After the length of the aluminum profile is cut, use the processing procedure of drilling the positioning hole of the bottom plate to drill positioning countersunk holes (both sides must be drilled) at the two ends of the aluminum profile and the corresponding position of the bottom plate. To lock the aluminum material on the bottom plate.Since the same drilling procedure is used, the positioning holes at both ends of the base plate and the aluminum material are completely overlapped, thereby realizing rapid positioning and processing.

When programming the ranking, the center of the aluminum material coincides with the center of the bottom plate. (The yellow line is the range of the aluminum material, and the green line is the range of the bottom plate. Milling four round holes on the side of the aluminum material is very useful, and it is used for positioning when the back surface is processed.)




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