Frame tailor-welding tooling and tailor-welding method

Abstract

The invention discloses a frame tailor-welding tooling, which comprises a positioning bottom frame used for achieving fixing of a bottom frame assembly and side frame positioning devices used for achieving positioning of two side frame assemblies; each side frame positioning device comprises an inner limiting frame fixedly installed on the positioning bottom frame, two inner supporting mechanisms which are installed on the two sides of the inner limiting frame correspondingly and perpendicularly stretch out towards the two outer side faces of the positioning bottom frame correspondingly, and two outer clamping mechanisms which are fixed to the two sides of the positioning bottom frame correspondingly and are opposite to the two inner supporting mechanisms correspondingly; and one end of the positioning bottom frame is provided with an end part limiting mechanism for positioning the end part of the side frame of a frame. According to the frame tailor-welding tooling and the tailor-welding method provided by the invention, the problems existing in the prior art are solved, it is guaranteed that the upper side frame of the welded frame is good in parallelism and small in error, the perpendicularity error of the longitudinal axis of the frame is small, and all power components or transmission components and the like on the frame are not prone to deviating in the working process.

Description

technical field [0001] The invention belongs to the field of frame assembly, and more specifically relates to a frame tailor welding tool and a tailor welding method. Background technique [0002] The frame of the dry-type coal preparation machine is 9 meters long, 2.5 meters wide, and weighs more than 4 tons. The drive drum, reversing drum, lower idler, buffer idler assembly, receiver box and other components need to be installed on the rack, and the above mentioned After the components are installed, the parallelism between them must be guaranteed, and the longitudinal axis of the frame must be vertical, otherwise it will affect the operation of the whole machine. Therefore, the tailor-welding process of the frame assembly is labor-intensive, and it is difficult to ensure the accuracy required by the design. [0003] In the prior art, the welding process of the frame assembly is: tailor-weld the bottom frame assembly, and then tailor and weld each part of the side frame as...

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Problems solved by technology

[0002] The frame of the dry-type coal preparation machine is 9 meters long, 2.5 meters wide, and weighs more than 4 tons. The drive drum, reversing drum, lower idler, buffer idler assembly, receiver box and other components need to be installed on the rack, and the above mentioned After the components are installed, the parallelism between them must be guaranteed, and the longitudinal axis of the frame must be vertical, otherwise it will affect the operation of the whole machine. Therefore, the tailor-welding process of the frame assembly is labor-intensive, and it is difficult to ensure the accuracy required by the design.

[0003] In the prior art, the welding process of the frame assembly is: tailor-weld the bottom frame assembly, and then tailor and weld each part of the side frame assembly on the bottom frame assembly respectively. After the welding is completed, the parallelism of the side frame assemblies on both sides The error is large, and the verticality error with the longitudinal axis of the frame is large. After assembling the driving roller, reversing roller, lower roller, buffer roller assembly, receiver box and other components, the components are prone to skew and deviation during operation

[0004] In the prior art, not only the dry-type coal separator frame, but most of the frame assembly adopts such an operation method, so that the axis of the frame after welding and assembly cannot be in a vertical state, and the side frames on both sides of the frame cannot be vertical. Problems such as non-parallel and non-perpendicular to the bottom frame exist, and during welding, the operation is more cumbersome and the welding efficiency is low

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