179 results about "Surface tooth" patented technology

Disclosed is a dedicated machine capable of cutting or beveling a pipe, such as a circular pipe or bar, in such a manner that a cutter unit rotates around the pipe while cutting any one surface of thepipe after gripping and fixing the pipe. A pipe cutting and beveling machine, according to the present invention, comprises: a main body unit in which a pipe passes through the center portion thereofso as to be fixed; and a cutter unit which is coupled to the main body unit so as to cut or bevel the pipe by means of a cutting blade while rotating around the fixed pipe, wherein the cutter unit may be provided with a rotating unit on one side thereof so as to pull the cutter unit aside and a locking unit on the other side thereof so as to restrain or release the cutter unit from being pulled aside. In addition, an entry control unit, which operates the cutter unit to move forward or backward, may comprise: a lever which is gear-engaged with an outer side surface of an entry control plate;and a clutch which is formed on a rotation shaft of the lever such that the restraint thereof is released when the lever is lifted or pressed in the axial direction.

The invention discloses a checking tool capable of measuring 0.7-dimension end surface teeth. A shaft jacket has a hollow cavity with two openings formed at two ends; one end of the shaft jacket fixedly sleeves the sleeve of a dial indicator; the other end of the shaft jacket sleeves one end of a guide jacket; a guide hole with two openings formed at two ends is formed in the center of the guide jacket along the axial direction of the guide jacket; a measuring head is arranged in the hollow cavity of the shaft jacket and the guide hole of the guide jacket; the measuring head can slide along the guide hole of the guide jacket; one end of the measuring head contacts with the measurement head of the dial indicator; the other end of the measuring head extends out from the guide hole of the guide jacket; a guiding jacket sleeves the other end of the guide jacket; and the guiding jacket can slide along the axial direction of the guide jacket. When the checking tool is used, the guiding jacket is attached to a standard piece, and the checking tool is vertical to the standard piece assuredly; the other end of the measuring head is located in the tooth groove of the standard piece; the shaft jacket is pressed downwards vertically; the standard piece is measured; zero setting is performed on the dial indicator; the checking tool is utilized to measure a piece; the reading of the dial indicator is the difference of the actual size of the piece and the size of the standard piece; and the actual size of the piece can be obtained based on the size of the standard piece.