Special clamping tool for stepping board assembly and application method thereof

Abstract

The invention discloses a special clamping tool for stepping board assembly. The clamping tool includes a top board, baffle plates and an adjusting bolt; and the clamping tool is characterized in thatthe length of the top board (3) determines according to the width of a stepping board which is 150 mm; baffle plates include a first baffle plate (4) and a second baffle plate (5) which are same in size; a nut (7) is fixedly welded in a through hole opening on the inner side of the second baffle plate; the nut matches a bolt (6), so that one end of the bolt is fixedly welded with a backing plate(8), and the other end of the bolt is placed on the outer side of the second baffle plate; and the screw length of the bolt can movably adjust the distance between the backing plate and the first baffle plate. The clamping tool and application method have advantages of being simple in clamping device structure, convenient in making, concise in construction, convenient and short in construction period, and can ensure engineering quality, so that large scale stepping board assembly engineering can be realized, and high precision rapid assembly can be achieved.

Description

technical field [0001] The invention relates to a clamp, in particular to a special clamp for step plate assembly and its usage method. Background technique [0002] The corridor of the belt conveyor is paved with step boards, which are generally composed of checkered plates or combined steel bearing plates and ladder beams on both sides. As shown in the figure, the step boards are made of 6mm thick Q235B checkered steel plates and L125x10 The edge angle steel is welded, each step is 178mm high, 942mm wide, and the total length of the tread is about 6m. [0003] figure 1 is a known pedal step diagram, figure 2 is the known tread elevation, image 3 is a known tread plan. The traditional steel structure assembly method is to first place the angle steels on both sides of the tread plate on the assembly platform, locate the distance between the angle steels on both sides, and then fix the tread plates to the angle steels on both sides by spot welding. [0004] There are f...

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Problems solved by technology

[0005] 1. The side bend of the angle steel is not easy to straighten. Before assembly, the 6m long angle steel supplied by the steel factory has great flexibility in the length direction, and there will be a certain side bend in the length direction. It is difficult to correct the side curvature of the angle steel before assembly. The side bend in the length direction of the angle steel spot-welded with patterned steel plates will continue to exist, but the standard stipulates that the side bend value of the tread plate in the total length direction should not be greater than 1 / 1000. This assembly method cannot meet the quality specified in the code. Require

[0006] 2. There is wave deformation in the angle steel. When the step plate is assembled, because the angle plate has side bending in the length direction, it cannot be tightly assembled at the local connection between the angle steel and the steps, and there is an assembly gap. The result is that the angle steel is in the length direction. There is also wave deformation

[0007] 3. The assembly speed is slow. Each step plate is composed of multiple steps. This assembly method needs to check the assembly size when assembling each step, and then assemble the next step. If the assembly size is found to be out of tolerance, it is not easy Correction, resulting in slow assembly speed and low work efficiency

[0008] Therefore, there are above-mentioned inconveniences and problems in the method for determining the distance between the angle steels on both sides of the tread in the known tread assembly process.

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