Core rod fixing device and high-speed rolling mill

Abstract

The invention discloses a core rod fixing device and a high-speed rolling mill, which belongs to the field of tube processing equipment, and makes a core rod free of position changes in a tube transferring and processing process. The core rod fixing device comprises a rack, a machine body mounted on the rack in a sliding mode, and a tightening device arranged on the machine body, wherein a core rod is arranged on the rack; a tube is transferred along the core rod after passing through the tightening device; the tightening device comprises a clamping claw; after the tube is transferred out of the tightening device, the clamping claw clamps the core rod to prevent the core rod from position changes in the axial direction; a core rod embracing device is further arranged on the rack; the corerod embracing device comprises a clamping claw and a drive part for controlling the clamping claw to clamp the core rod; the clamping claw comprises two clamping arms which are mutually hinged; the end parts of the clamping arms are equipped with hoops for embracing the core rod; and a plurality of rolling needle bearings which abut against the core rod while the core rod is clamped are arranged on a hoop.

Description

【Technical field】 [0001] The invention relates to the field of pipe material processing equipment, in particular to a core rod fixing device and a high-speed rolling mill. 【Background technique】 [0002] When the pipe is rolled, the head of the rolling mill usually drags the pipe while processing. The processing speed of the pipe is low. If the head produces a large traction force on the pipe, the quality of the pipe will be affected during the rolling process. . In order to improve the processing speed of the pipe, the transmission speed of the pipe can be increased, and the core rod is usually set to guide the transmission of the pipe. When the equipment for increasing the transmission speed of the pipe is installed, it will inevitably affect the core rod. Therefore, it is necessary to increase the core rod. The stability of the pipe can avoid the position change of the core rod during the transmission and processing of the pipe. 【Content of invention】 [0003] The tec...

AI Technical Summary

Problems solved by technology

[0002] When the pipe is rolled, the head of the rolling mill usually drags the pipe while processing. The processing speed of the pipe is low. If the head produces a large traction force on the pipe, the quality of the pipe will be affected during the rolling process.

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