Flange, also called flange or flange. Flanges are the connecting parts between shafts or pipes and are used to connect the pipe ends; there are also flanges at the inlet and outlet of the equipment to connect two equipment. Forging is the most common method of flange production. After the flange is forged, turning, drilling and other processes are required to complete the flange processing. At present, the common flange production process includes the following steps:s1Rough turning, based on the outer circle turning forging inner circle end face, and then based on the outer circle turning inner circle;S2, Drilling, drilling the workpiece with a drilling machine;S3, fine car, the outer circle as the reference car forgings inner circle end face, and then the outer circle as the reference car inner circle;S4, Cleaning, cleaning the workpiece with an ultrasonic cleaning machine;S5Oiling, I .e. coating anti-rust oil on the surface of the workpiece. The above-mentioned existing technical scheme has the following defects: in the turning process, the workpiece outer circle will be clamped when turning the inner circle, and the workpiece outer circle will be clamped when turning the inner circle, so in the turning process need to clamp the workpiece again and in the middle. The centering process is tedious and time-consuming, resulting in reduced processing efficiency.

　　for overcomingthe deficiencies of existing technologies,Technical staffA flange processing technology is provided to achieve the purpose of improving the processing technology and improving efficiency.ItThrough the following technical solutions: mainly includes the following steps:S1, Rough car, that is, the outer circle, inner circle and two end faces of the car workpiece;S2, Drilling, drilling the workpiece with a drilling machine;S3, Fine turning, that is, turning the open outer circle, inner circle and end faces at both ends;S4, cleaning, cleaning the workpiece with gasoline;S5, oiling, coating kerosene on the surface of the workpiece, in steps1and/or stepss3An auxiliary clamping device is used to assist in clamping the workpiece. The auxiliary clamping device includes a mounting frame slidably connected to the lathe frame, the mounting frame is rotatably connected to a mounting ring coaxially arranged with the lathe spindle, and the rotation axis of the mounting ring is vertically arranged. At least three sliding blocks are circumferentially slidably connected to the mounting ring. The extension line of the sliding direction of the slider passes through the center of the mounting ring. One end of the slider close to the center of the mounting ring is rotatably connected with a collision roller whose central axis is parallel to the central axis of the mounting ring. The mounting ring is provided with a drive for driving the slider to slide. structure.

What needs to be added is: when makingInstall the workpiece on the lathe fixture. When one end of the workpiece is processed and the other end needs to be processed, clamp the workpiece with an auxiliary clamping device, then loosen the lathe fixture and turn the mounting ring180Degree, so that the other end face of the workpiece faces the tool, and finally because the mounting ring and the lathe spindle are coaxially arranged, the workpiece is clamped by the lathe fixture, so that when the driving structure drives the slider to clamp the workpiece through the collision roller, the workpiece and the lathe spindle are coaxially arranged.

To sum up the above,The new flangeThis has the following advantageous technical effects: Firstly, since the mounting ring is arranged coaxially with the lathe spindle, the lathe clamp is used for clamping the workpiece. When the driving structure drives the slider to clamp the workpiece with the striker, the workpiece is coaxially arranged with the lathe spindle,It is convenient for the workpiece to be turned over, clamped and centered, and effectively increases the flange processing efficiency.. Secondly, the workpiece is abutted against the roller. After clamping, the workpiece can be rotated to adjust and detect the workpiece. Third, during finishing turning, the inner circle of the forging is turned based on the inner circle, then the end faces and inner circles on both sides are turned based on the outer circle, the reference surface is processed with the inner circle, and the two end faces and inner circle of the flange are processed with the reference surface, so that the rest of the workpiece is processed with the reference surface to provide flange accuracy.