3results about How to "Guaranteed Dimensional Tolerances" patented technology

The invention provides a turning machining method for a thin-wall disc part, the thin-wall disc part is composed of a cylinder and an annular disc body which are integrally formed, the annular disc body is located in the axial middle of the cylinder, and the machining method comprises the steps that S1, a primary blank is roughly turned; s2, parts are clamped, specifically, the lengthened part of the primary blank is clamped through a stepped mandrel; and S3, the part is subjected to finish turning and cut off. The method is ingenious in design, low in cost, simple in process, convenient to operate, low in requirement for skills of operators and stable in machining quality; a thin-wall cylinder of the thin-wall disc part is not subjected to clamping force generated by clamping of the chuck, and part deformation caused by uneven stress is effectively avoided; the used clamp is easy to manufacture and low in cost, the matched turning method is convenient to operate, the dimensional tolerance of machined parts is stable, and the technical requirements can be guaranteed; the device is suitable for turning of all thin-wall disc parts of similar structures, and the sizes of the stepped mandrel and tool accessories can be adjusted according to different boundary dimensions of the parts.

The utility model provides a transformer framework, transformer, power module and electric equipment, the transformer framework includes the body, the body has two side plate and winding reel, one side plate is connected with one end of winding reel, the body has the magnetic core jack, the magnetic core jack passes through winding reel and two side plate in the axial direction of winding reel, the side plate is provided with the fixed wire pin, and the fixed wire pin is connected with the winding reel. The wire fixing pin is provided with a pin part and a wire fixing part, in the height direction of the body, the pin part extends out of the side plate, the height direction is perpendicular to the axial direction, the wire fixing part is located on the side, opposite to the winding reel, of the side plate, the wire fixing part is provided with a wire clamping groove, and the wire fixing part can be plastically deformed. The transformer is provided with the transformer framework, the power module is provided with the transformer, the electric equipment is provided with the power module, the transformer framework has the advantages of being convenient to produce and capable of reducing production process difficulty and cost, and the transformer framework can improve the quality and voltage resistance of the transformer.

The application discloses a ring-shaped mortise measuring tool and belongs to the technical field of machining measurement. The ring-shaped mortise measuring tool comprises a machining gauge, wherein the machining gauge comprises a support, a spring rod and a dial indicator. The support is provided with a ring-shaped positioning support structure. The spring rod comprises a sleeve, a measuring rod and a measuring head. The sleeve is arranged on the support. The measuring rod is arranged on the sleeve in a vertical telescopic mode. The front end of the measuring rod is connected with the measuring head. The rear end of the measuring head is provided with a measuring contact part. The dial indicator is arranged on the sleeve. The rear end of the measuring rod is in contact with the dial indicator. According to the application, the base size is consistent with the theoretical value of the main shaft mortise. The measuring tool is placed on the base. Four-point positioning is realized. The dial indicator is zeroed. The main shaft mortise is processed by using a forming tool. During the processing, the measuring tool is placed on the outer circle of the main shaft in a four-point positioning mode. The actual measured value of the mortise surface is detected. The turning amount is determined according to the actual measured value. Therefore, the dimensional tolerance of the part is ensured.