Automatic continuous inner hole polishing machine for steel tubes

Abstract

The invention discloses an automatic continuous inner hole polishing machine for steel tubes. The automatic continuous inner hole polishing machine comprises a frame and a workbench arranged on the upper part of the frame, wherein an electric control device and a hydraulic device are arranged inside the frame; a fixing device, a sample conveying device and a polishing device are arranged on the workbench; the fixing device comprises an upper pressing die and a lower pressing die; a pressing oil cylinder is arranged above the upper pressing die; the sample conveying device comprises a feeding disk, a receiving disk and a connecting plate which is positioned between the feeding disk and the receiving disk; the polishing device comprises a polishing motor and a polishing shaft which is arranged at the front end of the polishing motor; the upper pressing die and the lower pressing die are positioned on the upper side and the lower side of the connecting plate respectively; the polishing motor is positioned in front of the connecting plate; the connecting plate is a steel plate with a certain inclination angle; and one end, which is close to the feeding disk, of the connecting plate is higher than the end, which is close to the receiving disk, of the connecting plate. The sample conveying device specific to the shapes of steel tubes is arranged, so that automatic feeding and discharging of steel tubes, and polishing of the inner walls of steel tubes under the condition of not turning round are realized.

Description

technical field [0001] The invention relates to an inner hole polishing device, in particular to an automatic continuous inner hole polishing machine for steel pipes. Background technique [0002] For the inner wall polishing of slender stainless steel tubes, there are generally three methods: electrolytic polishing, centrifugal polishing and magnetic polishing. Among them, mechanical polishing must be carried out before electrolytic polishing to remove scale. At the same time, electrolytic polishing generally requires the inner wall roughness to be Ra0.4μm, while centrifugal polishing and magnetic polishing can only achieve micro-cutting, which is not suitable for large-scale cutting and large-scale production. The polishing of the slender stainless steel tube is less efficient. Therefore, mechanical methods are still the best processing method for the inner wall polishing of slender stainless steel pipes. [0003] The existing steel pipe inner hole polishing machine main...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the existing steel pipe inner hole polishing machines, the present invention provides an automatic continuous inner hole polishing machine for steel pipes. This inner hole polishing machine realizes automatic continuous feeding and unloading of steel pipes, The polishing efficiency is improved, and the inner hole wall will not produce steps after polishing

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