Quick replacement device of guide plate rack on large caliber perforating machine

Abstract

The invention relates to an upper guide plate frame fast exchanging device of a large caliber punch in the field of seamless pipe production device which includes the upper guide plate frame for fixing the upper guide plate; the upper guide plate is arranged in a guide frame arranged on a stander through the matching of a slide block; the side surface of the guide frame is provided with a lateral locking device; the front side and the back side of the upper guide frame are respectively and vertically provided with a cylinder supported on a balancing oil cylinder on the stander; the piston rod of the balancing oil cylinder is arranged at the lower end of the two sides of the upper guide plate frame; the two sides of the upper guide plate frame are provided with two guide slots; the guide slots are provided with a sliding locking frame in clearance fit; the back side of the sliding locking frame is provided with a sliding drive mechanism; a screw the lower end of which is butted on the upper end of the upper guide plate frame is arranged in the sliding locking frame; a nut is arranged outside the screw; a worm wheel is fixedly arranged outside the nut; the side surface of the worm wheel is engaged and provided with a worm which is horizontally arranged on the sliding locking frame; the worm and a locking motor are connected in a transmission way. The upper guide plate frame fast exchanging device of a large caliber meets the production demands for the seamless pipe with large scale and large group interval through quickly and entirely exchanging the upper guide plate frame.

Description

technical field [0001] The invention relates to a seamless steel pipe production equipment, in particular to a guide frame of a large horizontal seamless steel pipe piercing machine. Background technique [0002] At present, in the seamless steel pipe production line, the piercer is one of the main equipments. The horizontal piercer mainly includes a machine frame, a roll, a roll adjustment device, a guide plate, a guide plate frame and a tapered ejector rod. There are two symmetrical rolls. The rolls are installed on the roll adjustment device, which is set on the frame; the guide plate includes a symmetrically arranged upper guide plate and a lower guide plate, and the upper guide plate and the lower guide plate are installed on the guide plate frame respectively, and the guide plate frame is fixed on the frame. The ejector rod is set at the symmetrical center of the upper guide plate, the lower guide plate and the two rollers. When the solid cylindrical billet is clamped ...

AI Technical Summary

Problems solved by technology

The disadvantages of this design are: 1. Locking is inconvenient and unreliable; 2. It is not flexible to replace the guide plate; 3. It cannot be flexibly adapted to tube blanks of different specifications and diameters; 4. Especially due to the increase in the production group spacing, this What the design brings is that the distance between the rollers and the guide plate is contradictory, which can no longer meet the production requirements of the increasingly large group distance; 5. The manufacturing cost of the equipment is high. When producing steel pipes from Φ340mm to Φ920mm or even larger, it has to be designed Several units, such as Φ340 unit, Φ508 unit, Φ720 unit, Φ920 unit and many other units, so the equipment manufacturing cost is relatively high

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