Hole punching tooling for tubular parts

Abstract

The invention discloses a tubular part punching tooling. The tubular part punching tooling comprises a base, a pressing mechanism and a supporting mechanism; the pressing mechanism is retractably arranged on the base in a penetrating mode; the supporting mechanism comprises a sliding rail, a regulating structure and two supporting plates; the sliding rail is fixedly connected with the base, and the two supporting plates are slidably connected with the sliding rail; the regulating structure is retractably arranged on the sliding rail in a penetrating mode; and the regulating structure comprisesa cam, the cam is arranged between the two supporting plates, and the center line of the cam is coincident with the center line of the pressing mechanism. According to the tubular part punching tooling, positioning of tubular parts to be drilled is realized, supporting for inner hole walls of the tubular parts is realized through the supporting plates, and deformation of inner holes of the tubular parts is prevented; and meanwhile, the phenomenon of stress concentration is relieved, and local deformation caused by material extension and stress concentration is restrained.

Description

technical field [0001] The invention relates to a punching tool, in particular to a punching tool for tubular parts. Background technique [0002] For tubular parts that require inner hole accuracy, if there is a need to punch holes on the pipe wall, it is difficult to ensure accuracy with traditional methods. figure 1 The state diagram after drilling a hole for a tubular part in the prior art, such as figure 1 As shown, the relative position of the tubular components can be fixed by a clamp before drilling, and then a hole 20 can be drilled in the pipe wall 10 by a drill. During this process, due to insufficient support in the inner diameter of the parts, the tubular parts may be out of round, which affects the accuracy of the parts; if the hole 20 to be processed is a through hole, when drilling through, the inner diameter of the part will pass through. There will be stress concentration and deformation in the area near the hole, and due to the ductility of the material ...

AI Technical Summary

Problems solved by technology

During this process, due to insufficient support in the inner diameter of the part, the tubular part may be out of round and affect the accuracy of the part; if the hole 20 to be processed is a through hole, the inner diameter of the part will pass through There will be stress concentration and deformation in the area near the hole, and due to the ductility of the material of the tubular part, radial burrs will be left on the edge of the inner diameter area after drilling, which seriously affects the accuracy of the inner diameter of the part

In addition, subsequent rounding and grinding will not only waste manpower, physical resources and time costs, but also make it difficult to restore the original accuracy

If it is an important component, in order to ensure the accuracy, it is necessary to carry out a test verification link, which will increase a lot of costs virtually

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