Processing accuracy of the fine drawing machine

The precision drawing machine ensures the processing accuracy mainly through the following methods:

1Precise mechanical structure

The mechanical structure accuracy of the fine drawing machine itself is the foundation. Its body is usually made of high-strength and high-rigidity materials, which can effectively resist vibration and deformation during processing. For example, high-quality cast iron or steel is used, and after precise processing and aging treatment, the geometric accuracy of the body, such as flatness and verticality, is ensured to reach a very high standard. At the same time, the key transmission components of the fine drawing machine, such as the guide rails and lead screws, have extremely high precision levels. High-precision linear guides can ensure the straightness of processing tools (such as molds, etc.) during movement, and the pitch accuracy of the lead screw is also strictly controlled, so that the feed amount during processing is accurate and correct, which provides a solid hardware foundation for precise processing.

2Advanced mold system

Mold precision: The mold used in the fine drawing machine has extremely high precision. The dimensional tolerance of the mold is controlled within a very small range, and the processing accuracy of key dimensions such as the inner diameter and outer diameter can reach the micron level. In this way, the raw materials can be accurately shaped during the fine drawing process to ensure the dimensional accuracy of the product.

Mold material selection: It is very important to choose the right mold material. High-quality mold materials have high hardness, high wear resistance and good thermal stability. For example, using cemented carbide or high-performance alloy steel to make molds, these materials can maintain the stability of mold shape and size during long-term processing, and will not affect the processing accuracy due to factors such as friction and thermal deformation.

3Precise control system

Speed control: The fine drawing machine is equipped with an accurate speed control system, which can accurately adjust the processing speed. According to different material properties and processing requirements, set the appropriate drawing speed to avoid dimensional deviation caused by too fast or too slow speed. For example, when processing high-precision thin-walled pipes, improper speed control may cause uneven wall thickness of the pipe, and accurate speed control can effectively avoid this situation.

Tension control: Through the tension sensor and feedback control system, the tension during the processing is monitored and adjusted in real time. Appropriate tension can ensure that the material deforms evenly in the mold and prevent the product surface quality degradation and dimensional errors caused by uneven tension.

4Online monitoring and feedback adjustment

The precision drawing machine is equipped with advanced online monitoring equipment, such as laser diameter gauges, optical measurement systems, etc. These devices can measure the size, shape and other parameters of the processed products in real time, and feed the data back to the control system. Once the processing accuracy deviation is found, the control system will immediately take measures, such as adjusting the mold position, changing the processing speed or tension, etc., to correct the deviation in time and ensure that the processing accuracy always meets the requirements.