Automatic positioning and clamping system and method for overhauling long shaft side gearbox of bullet train set

Abstract

The invention discloses an automatic positioning and clamping system and method for overhauling a long shaft side gearbox of a bullet train set. The system comprises a double-station upender, an electrical control system, a long shaft side gearbox positioning and clamping mechanism, a pull rod clearance adjusting outer side tool, a pull rod clearance adjusting inner side tool, a cover plate opening and closing mechanism and a center mechanism. The long-axis side gearbox positioning and clamping mechanism comprises a clamp body back plate, a horizontal transverse moving mechanism, a vertical lifting sliding seat, a gearbox supporting arm, a gearbox vertical lifting tool, a long-axis side gearbox lower box body positioning and clamping tool and a vertical lifting sliding seat locking handle. Seamless combination of the lower box body of the gear box, the large gear shaft and the bearing seats on the two sides is ensured through the vertical lifting sliding seat. Accurate positioning of the gearbox in the front-back direction and the left-right direction is ensured through the lower box body positioning and clamping profiling tool; the cover plate opening and closing mechanism is driven by the lead screw elevator and the motor to be automatically opened and closed. The electric control system controls the center mechanism to act to achieve automatic adjustment of the gear box bearing clearance.

Description

technical field [0001] The invention belongs to the technical field of overhauling gearboxes of multiple train sets, and more specifically relates to an automatic positioning and clamping system and method for checking and repairing gearboxes on the long-axis side of multiple train sets. Background technique [0002] At present, there is only one kind of long-axis side gearbox mainly used in China's high-speed rail, that is, the CRH380B (L) EMU imported from Germany in the early stage. This kind of gearbox is the opposite of the current domestic Fuxing gearbox. After being combined with the left and right bearing seats, the clearance adjustment pads of the large gears on both sides are designed on the short axis side, so it is necessary to install the gearbox seat on the long axis side first, then erect the gearbox shaft, and then install and adjust the gears The clearance adjustment pad on the long axis side of the box shaft and the bearing seat cover on the long axis side,...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides an automatic positioning and clamping system and method for overhauling the gearbox on the long-axis side of the EMU, by setting up an electrical control system on the double-station turning machine and communicating with the electrical control system The gear box positioning and clamping mechanism on the long axis side, the outer tooling for adjusting the tension rod clearance, the inner tooling for adjusting the tension rod clearance, the cover plate opening and closing mechanism, and the top mechanism; the arm of the positioning and clamping mechanism for the gear box on the long axis side is designed to automatically lift Telescopic, the cover plate opening and closing mechanism is designed as electric opening and closing, which avoids the need to manually install the V-shaped steel bracket and manually lift the pit cover plate, and has a high degree of automation; through the design of the vertical lift slide seat, and on the slide seat The slide rails in the X and Y directions are designed to ensure that the seamless combination of the lower box with the large gear shaft and the bearing seats on the left and right sides does not interfere with the box closing station. The combination of gear shafts facilitates the steps of box closing operation, avoids the hoisting of large-sized and heavy workpieces, and improves the safety and convenience of box closing operations; through the design of a special locking handle, the workpiece can be slid before the robot tightens. The seat is locked and kept stationary, thereby avoiding the axial force generated by the robot during the tightening process, which makes the workpiece move along the axial direction and affects the accuracy of the robot's automated operation. Accuracy and tightening quality provide an important guarantee; through the design of the rod clearance to adjust the inner / outer tooling, the problem that the German Flender CRH380B (L) EMU gearbox cannot be adjusted by the gearbox's own weight is solved. Compared with the original operating mechanism, the gear box is more evenly stressed, which effectively avoids the cracking of the original base structure and improves the service life of the parts; through the use of automated instruments with data reading and collection functions, and with The combination of system operation software and sensors realizes the automatic jump and card control of the operation steps, saves manual data recording and the steps of relying on manual experience and feeling operation, and realizes the digitization of the operation process

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