Automatic thermal sleeve device and its control method

Abstract

The invention discloses an automatic hot shrinkage device and a control method of the automatic hot shrinkage device. The automatic hot shrinkage device comprises an assembly line, a first hole alignment mechanism, a second hole alignment mechanism, a grabbing mechanism, a heating mechanism and an installation cross frame. A covering station is arranged on the assembly line, a positioning rotary mechanism is arranged on the covering station, the grabbing mechanism is movably arranged on the installation cross frame, the first hole alignment mechanism is arranged on the side face of the positioning rotary mechanism, the positioning rotary mechanism, the heating mechanism and the second hole alignment mechanism are all arranged below the grabbing mechanism, the first hole alignment mechanism is provided with a first detection point, the second hole alignment mechanism is provided with a second detection point, and the plane formed by a vertical line passing the first detection point and a vertical line passing the second detection point is parallel to a motion trail formed by moving the grabbing mechanism from the portion above the second hole alignment mechanism to the portion above the positioning rotary mechanism. Automatic hole alignment hot shrinkage of shaft workpieces and hole workpieces can be easily achieved, hole alignment is accurate, and labor cost is reduced.

Description

technical field [0001] The invention relates to the technical field of thermal sleeves, in particular to an automatic thermal sleeve device and a control method thereof. Background technique [0002] Shrink-fitting technology is an assembly process for interference fit parts. Using the characteristics of thermal expansion and cold contraction of objects, the hole diameter will naturally become larger after the hole-type workpiece is heated to a certain temperature, so as to facilitate the shaft-type workpiece to fit on it. purpose within. For example, when assembling the rotor assembly of a servo motor, the pulley needs to be installed in the brake pulley using a shrink-fit process. The traditional method is to manually lift the pulley and the brake pulley to the assembly line. When the pulley flows to the heating station, the intermediate frequency The heating coil is lifted by the cylinder and enters the inner hole of the pulley for heating. When the heating time reaches ...

AI Technical Summary

Problems solved by technology

For example, when assembling the rotor assembly of a servo motor, the pulley needs to be installed in the brake pulley using a shrink-fit process. The traditional method is to manually lift the pulley and the brake pulley to the assembly line. When the pulley flows to the heating station, the intermediate frequency The heating coil is lifted by the cylinder and enters the inner hole of the pulley for heating. When the heating time reaches the set value, the heating coil is lowered, and the pulley is manually transported to fit with the brake pulley. The installation holes are aligned with the installation holes on the brake wheel, and finally the bolts are tightened, and the shrink-fit process is completed. This method has the following defects: the temperature of the hole-type workpiece is high after heating, and there are many unsafe factors in the process of manual handling of the set, and the hole After the shaft-type workpiece is inserted into the shaft-type workpiece, the temperature drops rapidly, and the rotation of the hole-type workpiece is difficult when it is aligned with the mounting hole.

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