Method and device for manufacturing fences

Abstract

The invention discloses a method and device for manufacturing fences. The method comprises the following steps of drilling a plurality of mounting holes in crossbeams through a drilling assembly; placing the crossbeams on a hole enlargement operation table of a hole enlargement assembly, and inserting vertical rods in the mounting holes; enabling a hole enlargement machine of the hole enlargementassembly to move to an original state and expand to a hole enlargement position of each vertical rod, enabling a conical rod of the hole enlargement machine to rotate clockwise to drive an external swelling tube to move downwards and drive a swelling column to protrude outwards, when the situation that pressure value achieves a pre-set threshold is detected by a pressure sensor of the hole enlargement assembly, enabling the hole enlargement machine to rotate anti-clockwise instead of clockwise rotation, driving the swelling tube to move upwards and the swelling column to retract inwards, and enabling the hole enlargement machine to return to the original state to realize seamless piezoresistance connection between the crossbeams and the vertical rods; and through left-and-right movement ofthe hole enlargement operation table, enabling the hole enlargement machine to move from the present original state to the next original state and performing the work of hole enlargement according tothe step 3.

Description

technical field [0001] The invention relates to the technical field of guardrails, in particular to a manufacturing method and device for a guardrail. Background technique [0002] Fences are widely used in our production and life. Fences usually include beams and vertical bars. The current processing methods on the market are divided into welding methods and splicing and assembly methods. Among them: [0003] Welding method: as attached figure 1 As shown in the figure, the mounting holes are drilled on the beams, the vertical rods are inserted through the mounting holes, and the intersections of the beams and the vertical rods are fixedly connected by welding. However, at present, crude manual tools are generally used to drill mounting holes on beams, such as electric hand drills, resulting in inaccurate positioning of the mounting holes and large errors, which not only reduces the firmness of the fence, but also makes processing inconvenient, time-consuming and laborious....

AI Technical Summary

Problems solved by technology

[0005] The invention provides a fence manufacturing method and its device. Numerical control precise positioning and drilling ensures the consistency of the diameter and hole spacing of the installation holes, and the physical piezoresistive technology is used to realize the seamless connection between the vertical bar and the beam, thereby solving the problem caused by the beam. The inconsistency of the upper hole diameter and the hole spacing results in low processing efficiency, time-consuming and labor-intensive problems, and the problem that the service life of the fence is reduced due to the use of welding technology or plugging rubber and other materials

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