A corner splint positioning and tensioning device

Abstract

The invention relates to a locating tensioning device of a corner clamping plate used for fixing an insulating tank in the curing stage after gluing. The locating tensioning device comprises an outerframe with inner side size larger than or equal to the side surface outline size of the insulating tank, and angle frames arranged at four corners of the outer frame, the angle frames comprises bottomplates fixed to the end angles of the outer frame, bases mounted on the bottom plates, guiding columns slidably penetrating through the bases, first connecting plates and second connecting plates correspondingly and fixedly mounted at the inner ends and the outer ends of the guiding columns, compression rollers arranged on the inner sides of the first connecting plates and used for being attachedagainst second concave right angle grooves, and compression springs sleeving the guiding columns, and the two ends of the compression springs abut against the first connecting plates and the base. Compared with the prior art, the assembling quality and the efficiency of the corner clamping plate can be improved through the locating tensioning device, mounting and disassembling operation are morerelaxed and can be operated by one person, in addition, the locating tensioning device can be piled up tidily in high density, full-automatic operation is convenient to achieved, and the logistic turnover efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of LNG ship insulation box production, and relates to a corner splint positioning and tensioning device. Background technique [0002] Part of the box type of the LNG marine insulation box adopts a sandwich structure of plywood→polyurethane board→plywood bonded layer by layer, and the four corners need to be bonded with corner splints. For special working conditions such as turbulence and low temperature at sea, this kind of box has strict requirements on bonding strength and assembly accuracy. At present, the assembly of the corner splints at home and abroad is manual operation, and the fixation after glue application is manually fastened with rubber belts and followed by the aging planning process. This method has the following problems: 1. The method of manual fastening of the rubber belt cannot ensure that the corner splint is evenly stressed, the tension of the rubber belt is limited, and the force can...

AI Technical Summary

Problems solved by technology

This method has the following problems: 1. The method of manual fastening of the rubber belt cannot ensure that the corner splint is evenly stressed, the tension of the rubber belt is limited, and the force cannot be accurately controlled, resulting in substandard bonding strength and assembly accuracy. The waste rate is higher and the production cost is higher; 2. The existing method does not consider the control of the mutual position of the plywood and the polyurethane board, resulting in the relative displacement of the multi-layer board of the insulation box during the handling or curing process, making it necessary to retain more in the early stage. There is a lot of machining allowance, and more complex machining is required in the later stage to ensure the yield rate, the production efficiency is low, and the production cost is high; 3. The existing method is time-consuming, laborious, and low in production efficiency, and is not suitable for large-scale industrial production

[0004] (1) The metal corner frame and the elastic part are not rigidly connected, which leads to the easy deformation of the positioning tensioning device, so that the assembly deviation of the corner splint cannot be accurately corrected, which affects the assembly accuracy. At the same time, due to the deformation, the position of the grabbing ring is not fixed. Unable to realize fully automatic operation of manipulator

[0005] (2) When the device is manually disassembled, four people are required to pull it from four directions at the same time, which consumes manpower, and due to the limitation of manpower, the force of the spring cannot be greatly increased, so that the pressing force is limited and the bonding strength of the corner splint cannot be satisfied. requirements

In addition, due to the possible presence of residual glue on the corner cleats, the positioning tensioner is bonded to the corner cleats, increasing the difficulty of removal

[0006] (3) After the device is removed from the insulating box, it cannot be stacked tightly and neatly, which increases the space and time required for logistics turnover, and it is difficult to realize fully automated access operations

However, this device cannot adapt to many different specifications, which increases the difficulty in the pairing management of the tensioning device and the insulating box

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