Xiaojiujiu of liujunbao, a senior technician of th

Liu Junbao's "Xiaojiu"

Liu Junbao's "Xiaojiu"

China Construction machinery information

Guide: you can save a lot of money by doing it yourself. Liu Junbao, a senior technician in the first section of the processing branch, said excitedly, pointing to the self-made speed selection contactor. The fine production of xiaojiujiu made him taste the sweetness of tapping potential in his post, and enhanced the momentum of deep tapping potential. The speed selection contactor of a horizontal boring machine in the branch factory is composed of

"you can save a lot of money by doing it yourself". Liu Junbao, a senior technician in the first section of the processing branch, said excitedly, pointing to the self-made "speed selection contactor". The intensive production of "small 99" made him taste the sweetness of tapping potential in his post, and enhanced the momentum of deep tapping potential

the speed selection contactor of a horizontal boring machine in the branch factory was damaged due to its long service life. Such spare parts are no longer sold in the market. Although it is a small part, it makes the equipment "prone". Liu Junbao saw it in his eyes and opened the "small 99" material testing machine in his heart. It is a mechanical afterburner testing machine for material tensile, contraction, bending, shearing, peeling and other mechanical properties experiments. He tried it himself to solve problems for production. The speed selection contactor is very complex, but the small parts with a total length of 40mm have four outer diameter dimensions, the largest outer circle diameter is 6mm, five steps need to be turned, and the top is hemispherical. In addition, the outer circle of M3 needs to be threaded, so it is very difficult to cut. He carefully surveyed and mapped the key dimensions compared with the old parts. During the processing, the parts could not be clamped due to their small size. He also made an open sleeve for clamping, and adopted the method of clamping for many times and processing step by step. He made a test piece by himself. After consulting the electrician's opinions, he made improvements again, and finally produced 10 qualified speed selection contactors, which solved the urgent need of production

the hydraulic device of the power chuck of ck3263a CNC lathe in the branch factory was broken. The repairman disassembled the hydraulic cylinder and found that the piston rod, piston, back nut and hydraulic rod of the hydraulic cylinder were damaged. The machine tool could not operate. After many contacts, no accessories could be bought. The machine tool was stopped for nearly a month, which seriously affected production. Liu Junbao volunteered to make self-made accessories and reduce maintenance costs. After analysis and research with the maintenance personnel, 40 or 50 key dimensions were mapped out on the damaged old parts, and then the waste oil cylinder rod of the same material was found for processing. Because the pull rod was slender, he fixed it with the center frame to ensure the coaxiality of the parts processing. The reason why the thread of the plug rod was vulnerable was the small pitch. Therefore, he changed the pitch of the piston rod and the back nut from m32*1 to m33*2, increased the pitch of the parts, and after four days of hard work, the machine tool returned to normal operation, saving more than 10000 yuan in the cost of effective repair and accessories in reducing pain and improving functions