How to correctly formulate the machining process of mechanical parts

During machining, our workers are all in accordance with operating standards. But how do you get it right when formulating a machining process for a component? Let's take a look at Changzhou Machinery Parts Processing.

  1. Select the appropriate processing method for each surface according to the requirements of the machining accuracy and the roughness of the machined surface.

  2. The positioning benchmark of each process should be effectively selected according to the thickness benchmark requirements.

  3. On the basis of the analysis of the parts, identify the rough and fine machining, and clarify the concentration of each process, and then arrange the processing sequence of each surface reasonably, and then formulate the machining process of the parts. route.

   4. Make clear the machining allowance of each process and the size of each process and its staff.

  5. Under the premise of ensuring quality and quantity and taking into account the economy, select suitable machine tools and tools, clamps, measuring tools and cutting tools.

  6. Clarify the technical requirements and inspection methods of each process.

  7. In order to ensure the rationalization of production and the balance of rhythm, it is necessary to select the appropriate cutting amount and time quota, and cannot change it at will.

  8. The staff shall fill in the process documents as required.

Classification of damage degree of mechanical parts:

  1. Parts are completely destroyed and cannot be used again (such as shaft fracture)

  2. Serious damage is not safe to use again (such as cracks and surface wear)

  3. Although it can still work safely, it has not achieved the intended effect.

For the specific requirements of size, the precision is more strict. If the size is wrong, it will become garbage, which is equivalent to needing to be reworked. This is very time consuming and laborious. Occasionally it scraps the entire process material, which adds to the cost. At the same time, these parts can no longer be used.

The machining of mechanical parts is actually a dimensional requirement. For example, the diameter of the cylinder is relatively strict, and the positive and negative errors are qualified parts within the specified requirements, otherwise they are unqualified parts. There are more specific and strict requirements for length, width, and height, as positive and negative errors are also specified. For example, if an in-line cylinder is too large, overrunning a small cylinder, it will cause insertion. If the actual diameter is too small, the allowable error exceeds the lower limit of negative values, then the insertion is too loose, and a weak point problem occurs. In reality, these are either substandard products, or the length of the cylinder is too long or too short. If it exceeds the allowable error range, it is actually a substandard product and must be scrapped or reworked. This will inevitably lead to increased costs.