Correcting device

Abstract

The invention discloses a correcting device. The correcting device comprises a workpiece positioning table (30), two correcting mechanisms (10) and two travelling mechanisms (20), wherein the workpiece positioning table (30) is used for positioning a workpiece; the two correcting mechanisms (10) are used for correcting the size of the workpiece; each travelling mechanism comprises a guide rail (21) and a travelling part (22) moving along the guide rail; and the workpiece positioning table is positioned between the two travelling mechanisms, and the two correcting mechanisms are arranged oppositely and respectively arranged on the travelling parts of the two travelling mechanisms. The correcting mechanisms can be driven to move in the length direction of the workpiece through the travelling mechanisms, so that the two sides of the workpiece can be corrected at the same time, the workpiece can be kept in a positioned state suitable for a next procedure, and low efficiency caused by excessive movement of the workpiece is avoided. In addition, a boom is placed in the same state during correction, detection and assembly, so that the detection result is more identical with the actual condition, and the detection precision is higher.

Description

technical field [0001] The invention relates to the straightening of workpieces, in particular to a straightening device for straightening a boom. Background technique [0002] As the core component of large-tonnage wheeled cranes, the boom's workpiece quality and efficiency directly affect the industrialization of large-tonnage wheeled cranes. The boom is usually formed by welding the multi-section cylindrical parts. Since the cylinder of the large-tonnage boom requires high precision, it needs to be dimensionally corrected after welding. [0003] Usually used when correcting figure 1 The straightening machine 10' shown squeezes the cylindrical portion having a size deviation to correct the size deviation. Among them, it is usually necessary to correct both sides of the boom workpiece (hereinafter simply referred to as the boom). Specifically, such as figure 2 As shown, the straightening machine 10' includes a straightening machine head 11' and a conveying mechanism 20...

AI Technical Summary

Problems solved by technology

[0004] Therefore, in the prior art, there are following defects in the correction of the boom: (1), the workpiece needs to be moved, and the floor space is relatively large; (2), the pressure head is driven by a vertical hydraulic cylinder, the empty stroke is long, and the efficiency is low; ( 3) Only one side of the boom can be corrected at a time, and other equipment and human assistance are required during the flipping operation, resulting in low efficiency; (4) When correcting, the boom is placed with both sides parallel to the horizontal plane. The boom needs to be positioned so that both sides are perpendicular to the horizontal plane for assembly, so it needs to be turned over after correction, which also leads to low efficiency; (5), the difference in the placement of the boom during correction and assembly may cause the test results to be different from the The actual situation may not match

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