CNC Knowledge: Screw processing technology at the heavy scale and heavy of machine tools

In recent years, with the rapid development of the machine industry, the demand of the country of heavy and important equipment has become more and more demanding, and the demand for significant and important equipment has also increased. The heavy roll screw continues to increase to meet the needs of national companies for large -scale heavy roller screws and solve the problem of processing large -scale heavy roller screws in China. The equipment initially solved the problem of insufficient treatment equipment. Specialized in research on high loads, heavy loads, precision beads and linear guidance rails.

Large roller screws generally refer to the drilling screw or more in the average diameter of 100 mm or to roller screws more than 6 meters long. The diameter of this type of roller screw is generally higher than the middle of 12.7 mm, while heavy ball screws are generally used on heavy machine tools or other equipment. Generally, the ratio of the diameter of the steel ball at the roller screwdriver is 0.6. Large heavy screws are particularly long and width, mainly greater than 50, more than 100; Whatever the aspect, it belongs to the category of difficulty of treatment of axis parts in the field of mechanical treatment.

The machining of the extinction and the coarse road from the threaded road, the selection of rough threading treatment methods is directly linked to the heat treatment process of the part. In general, the caliber of large large steel balls with a diameter greater than 12.7 mm. The thread roller tract is barely treated. Currently, lengthening the wire after extinction must be taken into account, but the screw is large. If the thread turns off along the rolling road after a rough treatment, it will cause a receipt and a receipt before implementation, and it will not reach the hardness required by the parts; The outer circle, the parts will be extinguished, the parts will then be the parts, then the parts will then be the diameter is large and will not be able to reach the depth of the extinction. For the end of extinction, given this reason, we use the roller of wire which does not treat before the caliber and use the overall caliber. Given the power of the caliber equipment, under the premise to guarantee the intensity of the parts, correctly reduces the round tracks to meet the requirements of the parts.

The central hole is the reference index for the processing of parts, and its quality directly affects the precision of the parts. If the reference is not good, the quality of the parts will be difficult to guarantee. The key to the treatment of this part is the central hole. In order to ensure room treatment requirements, we have designed a dedicated central grinding bed to grind the central hole in the Tour. Before the central grinding hole, the external circle of the support of the support is carried out, so that the central hole processed to fully guarantee the requirements of the process for subsequent treatment.

The thread roller track was not processed before the caliber, the entire wire was burned and the waste processing treatment was particularly important, and the unique balance was greater than 7 mm, which has reduced treatment for treatment constraints during the processing process. If the rough treatment is ground, the efficiency is low on the one hand. In order to overcome this gap, in the treatment of this roller script, the difficult processing method of advanced grain used successfully resolved the rough treatment of the wire on the existing machine tool so that the product can be delivered over time and explored a success. Treatment method.