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One-time punching device for circular arc-shaped notch in thin-walled pipe end

A technology of arc-shaped and thin-walled tubes, which is applied in the field of construction manufacturing, can solve problems such as low production efficiency and inability to guarantee the concentricity of two arc gaps, so as to improve productivity, stamping quality, good market application value, and stability high effect

Active Publication Date: 2017-02-22
JIANGHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing arc-shaped notches of steel pipes are made by unilateral punching on the punching machine with stamping dies. Although the operation is convenient and the molds can be replaced, the production efficiency is low, and the two-arc notches cannot be guaranteed. Concentricity

Method used

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  • One-time punching device for circular arc-shaped notch in thin-walled pipe end
  • One-time punching device for circular arc-shaped notch in thin-walled pipe end
  • One-time punching device for circular arc-shaped notch in thin-walled pipe end

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as figure 1 - The thin-walled tube end arc-shaped notch disposable punching device shown in 3 includes a base 1, a base panel 2 is fixed on the top of the base 1, a punch cover 3 is arranged on the base panel 2, and the left and right sides of the base panel 2 A vertical vertical board 11 is respectively fixed, and two vertical vertical boards 11 are facing and parallel, and a guide post 12 is respectively fixed between the upper part and the lower part of the two vertical vertical boards 11, and the two guide posts 12 Respectively pass through the upper part and the lower part of the punch sleeve 3, and slide fit with the punch sleeve 3.

[0036] A hydraulic cylinder is respectively fixed on the outer sides of the left and right two vertical vertical plates 11 of the base panel 2, which are respectively the first hydraul...

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PUM

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Abstract

The invention discloses a one-time punching device for a circular arc-shaped notch in a thin-walled pipe end. A female die sleeve is fixed to a base panel. A detachable female die is fixed inside the female die sleeve. A male die sleeve capable of moving bilaterally in the transverse direction is arranged on the base panel. A detachable male die with the initial position coaxial with that of the female die is fixed inside the male die sleeve and acts bilaterally in the radial direction of the female die. Punching cutting edges are arranged symmetrically on the two sides of the front end of the male die. A thin-walled pipe positioning hole is formed in the female die. Cutting edge sliding grooves corresponding to the punching cutting edges are transversely formed in the front end of the female die. Female die cutting edge holes communicating with the thin-walled pipe positioning hole coaxially and matched with the punching cutting edges are formed in the middles of the cutting edge sliding grooves. The circular arc-shaped notch is manufactured by only clamping a tubular product once, and the concentricity of the notch is guaranteed. A hydraulic system is adopted as a power system for driving and control, the travel can be adjusted and controlled by organically combining all electrical elements into a circuit, the operability is high, the female die and the male die can be rapidly replaced, and the one-time punching device is suitable for punching tubular products with different diameters.

Description

technical field [0001] The invention relates to the technical field of building manufacturing, in particular to a disposable punching device for a circular arc-shaped notch at a thin-walled pipe end. Background technique [0002] In industries such as steel furniture manufacturing, building scaffolding manufacturing, and decoration, it is usually necessary to weld the end of one round or rectangular steel pipe to the side of another round steel pipe; for beautiful welding, saving welding materials and improving welding To improve efficiency, it is necessary to make a circular arc-shaped notch at the end of the steel pipe, and its radius should be equivalent to the outer diameter of the circular steel pipe to be welded therewith. In addition, the diversity of the specifications of the two pipes welded together determines the diversity of the space dimensions of the arc-shaped notch; the provided pipes must be replaceable to adapt to the diversity of the space dimensions of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D28/02B21D28/14B21D28/04B21D37/04
CPCB21D28/02B21D28/04B21D28/14B21D37/04
Inventor 王莹珺余五新
Owner JIANGHAN UNIVERSITY
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