Workpiece suspension device for shaft pin quenching

Abstract

The invention discloses a workpiece suspension device for shaft pin quenching. The workpiece suspension device comprises supporting rods and a top plate; the supporting rods are fixedly installed on the two sides of the bottom face of the top plate; a threaded sleeve is rotatably installed in the middle of the top plate; a lead screw is in threaded connection with the interior of the threaded sleeve; a motor is fixedly installed on one side of the upper surface of the top plate; a first belt wheel is fixedly installed at the output end of the motor; a second belt wheel is fixedly installed onthe outer wall of the threaded sleeve; the first belt wheel and the second belt wheel are in transmission connection through a synchronous belt; a quenching containing frame is fixedly connected to the bottom end of the lead screw; the first belt wheel driven by the output end of the motor is in transmission connection with the second belt wheel fixedly installed on the outer wall of the threadedsleeve through a synchronous belt, so that the lead screw in threaded connection with the interior of the threaded sleeve drives the quenching containing frame to ascend or descend, multiple sets of containing blocks are symmetrically arranged in the quenching containing frame, and shaft pins are placed between the containing blocks; and workpieces are respectively placed and are not prone to adhering to generate interference, and the quenching performance of the shaft pins is improved.

Description

Technical field[0001]The invention relates to the technical field of quenching devices, in particular to a workpiece suspension device for shaft pin quenching.Background technique[0002]Quenching is a heat treatment process that heats steel to above the critical temperature, holds it for a certain period of time, and then cools it at a cooling rate greater than the critical cooling rate to obtain an unbalanced structure dominated by martensite. Quenching is the most used heat treatment process for steel A wide range of work methods, steel heat treatment roughly has four basic processes: annealing, normalizing, quenching and tempering. The purpose of quenching is to transform the undercooled austenite into martensite or bainite to obtain martensite or bainite. The microstructure is then tempered at different temperatures to greatly improve the rigidity, hardness, wear resistance, fatigue strength and toughness of the steel, so as to meet the different requirements of various mechanica...

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Problems solved by technology

[0003] Quenching is required during the processing of shaft pins. When using a trolley-type heating furnace for high-temperature quenching, the metal material that has reached the quenching temperature needs to be lifted from the quenching furnace and suspended for cooling. This requires some auxiliary devices. The current commonly used method is Or hang with a chain tool set, or clamp with a claw tool, but these methods are easy to shake, difficult to operate, and easy to affect the properties of metal materials during quenching, and most of the existing device suspensions are not provided with placement blocks. When quenching, it is easy to cause interference between workpieces

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