Successful application of CNC gun drilling deep hole drilling technology
In order to improve processing efficiency and save production costs, Dongguan Taiming CNC Machinery Co., Ltd. has developed an economical and applicable deep hole drilling solution through multiple investigations. Through several practical tests, it has successfully solved the problem of deep hole drilling technology for lubrication and control oil circuits of key components such as the rotating head, lower cylinder, and valve block of the top drive.
There are a series of oil channels on the lubrication and control oil circuits of the deep hole drilling rotary head, lower cylinder, and valve block, with a maximum diameter to length ratio of 40 times, making it a typical deep hole. Due to the limited original processing methods of the company, such as using traditional processing methods, the preparation time for processing is long, the labor intensity of workers is high, resulting in low efficiency in producing such parts, long manufacturing cycles, and high production costs; If a dedicated deep hole drilling machine is used for processing, the one-time investment cost is relatively high, and the purchase of such equipment requires about 1 million yuan. Based on the current production volume, the utilization rate of the equipment after investment is not high.
Taking into account the above factors, the relevant personnel of the Deep Hole Drilling Technology Research Institute have developed an economical and applicable solution after 4 field investigations and multiple technical exchanges: using a gun drill deep hole drilling system, which is installed on the existing general-purpose machine tool - TPX6113 boring machine. This process scheme has low cost, short installation and operation cycle, and is versatile. It not only does not change the structural performance of the original machine tool, but also has a high degree of automation and efficiency, which is 3-5 times higher than that of ordinary drilling machines. At the same time, this solution has a high cost-effectiveness, with a total investment of about 50000 yuan, which is equivalent to 1/20 of the price of a dedicated deep hole drilling machine.
Once this process plan is applied, it will improve the lubrication and control oil circuit deep hole machining efficiency of the top drive rotary head, lower cylinder, and valve block by more than 3-5 times, and can be used for other deep hole machining with aspect ratios within 100 times and hole diameters within 20, improving their deep hole machining efficiency, reducing manufacturing costs, and opening up new areas of the company's process technology.