3results about How to "Affect machining accuracy" patented technology

This utility model provides a clamping device for slender tubes with a large length-to-diameter ratio, belonging to the field of machining technology. The clamping device includes a clamping body, the right side of which is connected to an elastic clamping cone. A rolling element retainer passes through the elastic clamping cone, and the rolling element retainer has an elongated hole containing a rolling column. A clamping nut is threaded to the outer surface of the clamping body. The left side of the clamping body passes through a needle roller bearing, and the other end of the needle roller bearing is located within a limiting sleeve. By using clamping bolts, this utility model allows the rolling body to move and clamp the tube when the clamping nut is tightened, facilitating clamping or limiting the tube and preventing it from jumping during processing, thus affecting the processing accuracy. By using guide columns, the limiting sleeve can be limited, allowing the limiting sleeve to move stably and preventing deviation during movement.

This utility model discloses an automotive wiring harness welding device, relating to the field of welding equipment. It includes a machine body with a worktable inside. An electric telescopic rod is mounted above the worktable, and a welding head is fixedly installed at the bottom of the electric telescopic rod. A partition is located at the lower end of the electric telescopic rod, and a cleaning mechanism is located above the partition. The cleaning mechanism includes an air pump, which is fixedly installed on both sides of the partition. When the operator welds the metal wiring harness, they first operate the automatic telescopic rod to move it down. A striking rod fixedly connected to the bottom of the welding head moves down along with the automatic telescopic rod. At this time, the striking rod strikes a seesaw, causing the other end of the seesaw to lift a protective plate, thereby preventing sparks or other impurities such as broken welding wire from being ejected onto the operator's body and endangering their health. The protective plate improves the safety performance of the automotive wiring harness welding machine.

The utility model provides a minimum quantity lubrication supply device and a numerical control machine tool. The minimum quantity lubrication supply device comprises a machine tool spindle with a containing groove in one end. The cutter is mounted on the machine tool spindle and internally provided with a particle supply channel; the conveying pipeline is installed in the machine tool spindle, the output end of the conveying pipeline is connected into the containing groove, and an inner-layer channel and an outer-layer channel which are not communicated with each other are arranged in the conveying pipeline; the gas inlet and the lubricating oil inlet are formed in the machine tool spindle and communicate with the outer-layer channel and the inner-layer channel through a gas conveying channel and an oil conveying channel correspondingly; the sealing bracket is arranged in the accommodating groove and is provided with a mixing cavity for connecting the inner-layer channel and the outer-layer channel; the premixing unit is arranged in the mixing cavity, a premixing cavity is formed in the premixing unit, one end of the premixing unit is provided with an oil gas inlet communicated with the premixing cavity, and the other end of the premixing unit is provided with a first filtering structure communicated with the premixing cavity; gas and lubricating oil are input into the premixing cavity through the gas conveying channel and the oil conveying channel to be premixed, and an oil-gas mixture forms aerial fog particles in the mixing cavity through the first filtering structure and is output out of the tool through the particle supply channel.