Automatic straightening and shaping equipment used after welding deformation of box girder piece, and using method of automatic straightening and shaping equipment

Abstract

The invention discloses automatic straightening and shaping equipment used after welding deformation of a box girder piece. The automatic straightening and shaping equipment comprises a tool body platform, one or more gantry structures, two or more supporting blocks for supporting a workpiece needing to be shaped and two or more height measuring gauge for measuring whether the workpiece is adjusted in place or not, the lower parts of the gantry structures can move back and forth on the tool body platform; high-pressure jacks are mounted at the upper parts of the gantry structures and can moveleft and right on upper cross beams of the gantry structures; the two or more supporting blocks are detachably connected with the tool body platform; and the two or more height measuring gauge are equal-height blocks with the outer walls being provided with measuring scales. The invention further discloses a single-gantry pressure applying using method and a double-gantry pressure applying using method corresponding to the equipment. The automatic straightening and shaping equipment and the using methods have the beneficial effects that the labor intensity of operators can be better reduced, the operation efficiency is higher, and meanwhile whether the workpiece is accurately straightened or not can be rapidly detected.

Description

Technical field[0001]The invention relates to the field of rail transit machinery manufacturing, in particular to an automatic straightening and shaping device used for box girder parts after welding deformation and a use method thereof.Background technique[0002]Straightening and shaping equipment is a common equipment in the field of rail transit machinery manufacturing. In the manufacturing process of rail car box girder parts, although the quality is no problem after welding and flaw detection inspection, there is still a situation that the external dimensions will be out of tolerance. This actual situation will cause difficulties in subsequent assembly of the workpiece and affect the performance of the whole machine . Therefore, in the manufacturing process of this part, the product must be straightened and reshaped to meet the design requirements. It can be seen that this process must be guaranteed by special equipment, that is, straightening and shaping equipment, and this typ...

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Problems solved by technology

[0003] There are many types of straightening and shaping equipment in the prior art. The inventor of the patent application found that one of the older structures is characterized by: the columns used for anti-deformation are all fixed, and the pressing position may not be ideal. , lifting the workpiece requires the jack and the upper beam to be removed frequently, and it is time-consuming and laborious to tighten the jack manually with a wrench, and the adjustment is quite troublesome

[0004] On the above traditional structure, there is an improved design that further adopts the gantry + high-pressure jack. The gantry can move back and forth along the track, making it easier to lift workpieces. The jack moves left and right on the gantry track, so that the jack can be pressed in a more reasonable position, slightly The disadvantage is that the gantry moves back and forth manually and the jack moves left and right. When the pressure to press the workpiece needs to be large enough, the gantry needs high strength and rigidity, and the structure is cumbersome. It will be laborious, and it will be laborious and time-consuming to manually operate the manual pump to apply pressure

In view of the above problems, some people have added an electro-hydraulic station on this basis. Manually operating the button can make the pressure quickly reach the application point, but the gantry is still manually pushed. There is no relevant design to save the physical strength of the operator, and the operation efficiency is low. , after the alignment is completed, there is also a lack of related structures that can quickly detect the alignment

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