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Manufacture method for guiding carrier roller in guide roller used for backward bending machine

A technology of guiding idler and manufacturing method, which is applied to manufacturing tools, metal processing equipment, feeding devices, etc., can solve the problems affecting the production quality of steel pipes, the deviation of steel pipe transportation, and the easy deviation of the center of gravity, so as to achieve a stable center of gravity and improve Conveying precision, smooth and precise effect of conveying process

Active Publication Date: 2016-03-30
安徽五洋机床制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems in the prior art of processing large-diameter, large-wall-thick, and high-pressure-resistant steel pipes that are unstable, the center of gravity is easy to shift, and steel pipes are conveyed off-track, thereby affecting the production quality of steel pipes, the present invention provides a guide roller for back bending machines. The manufacturing method of the idler roller, the device manufactured by the method of the present invention has high precision, good wear resistance and long service life. The device can accurately locate the center of gravity of the steel pipe to be processed, and keep the opening of the steel pipe on the same straight line, greatly increasing It improves the stability of steel pipe transportation and improves the processing quality of steel pipes

Method used

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  • Manufacture method for guiding carrier roller in guide roller used for backward bending machine

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Experimental program
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Effect test

Embodiment 1

[0040] like figure 1As shown, a guide roller for a back bender includes a guide roller 2, a roller 3, a roller seat 4 and a guide roller frame 5. The roller 3 is provided with a key groove; the guide roller 2 is installed on the roller through a key connection. On the shaft 3, the guide roller 2 and the roller 3 are in interference fit; the roller seat 4 is provided with a sliding bearing; the roller 3 is connected with the roller seat 4 through the sliding bearing, and the roller seat 4 is two symmetrically. Installed on the guide roller frame 5; the guide roller 2 is a truncated cone, and one of the two ends is the upper bottom surface and the other is the lower bottom surface. The inclination angle is 30°; the number of guide rollers 2 is two; the two circular truncated guide rollers 2 are installed on the roller 3 in a way that the upper and lower surfaces are opposite to each other; there is a guide wheel 1 in the middle of the two circular truncated guide rollers 2 ; Th...

Embodiment 2

[0052] A manufacturing method of a guide idler for a guide roller for a back bending machine, the steps of which are:

[0053] A Preparation of raw materials: The components and weight percentages of the materials used in the guide roller are: C: 1.80%, Si: 2.6%, Mn: 0.9%, Cr: 1.10%, S≤0.05%, P≤0.05%, the remainder is Fe;

[0054] B heat treatment: the forging blank in step A is annealed, the annealing temperature is 720 ° C, the temperature is kept for 2 hours, and the air is cooled;

[0055] C Preliminary machining: the forging blank after the heat treatment in step B is preliminarily machined into the overall shape of the guide roller with a lathe;

[0056] D quenching and tempering treatment: heating the guide roller after initial processing in step C to a temperature of 830 ° C, holding for 1 hour, and water quenching;

[0057] E deep processing: fine grinding the outer surface of the guide roller after the quenching and tempering treatment in step D;

[0058] F surfac...

Embodiment 3

[0062] A manufacturing method of a guide idler for a guide roller for a back bending machine, the steps of which are:

[0063] A Preparation of raw materials: The components and weight percentages of the materials used in the guide roller are: C: 2.11%, Si: 1.8%, Mn: 1.3%, Cr: 0.70%, S≤0.05%, P≤0.05%, the balance is Fe;

[0064] B heat treatment: the forging blank in step A is annealed, the annealing temperature is 760 ° C, the temperature is kept for 3 hours, and the air is cooled;

[0065] C Preliminary machining: the forging blank after the heat treatment in step B is preliminarily machined into the overall shape of the guide roller with a lathe;

[0066] D quenching and tempering treatment: heating the guide roller after the initial processing in step C to a temperature of 850 ° C, holding for 2 hours, and water quenching;

[0067] E deep processing: fine grinding the outer surface of the guide roller after the quenching and tempering treatment in step D;

[0068] F sur...

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Abstract

The invention discloses a manufacture method for guiding carrier rollers in a guide roller used for a backward bending machine, belongs to the field of backward bending machines and solves the problem of low quality due to unstable transmission when a high pressure resistant steel pipe with a big caliber and a big wall thickness is processed in the prior art. The device comprises guiding carrier rollers, a rolling shaft, a rolling shaft seat and a guide roller frame, wherein the guiding carrier rollers are installed on the rolling shaft; the rolling shaft is installed on the rolling shaft seat; the rolling shaft seat is installed on the guide roller frame; the two guiding carrier rollers are of circular truncated cone shapes; the two guiding carrier rollers of the circular truncated cone shapes are installed on the rolling shaft in a way that the upper bottom surfaces of the two guiding carrier rollers are opposite; a guide pulley is arranged between the two guiding carrier rollers of the circular truncated cone shapes and is of a disk shape, and the center position is thicker than the edge position. The device can accurately capture the center of gravity of a steel pipe to be processed, the openings of the steel pipes are always kept on the same straight line, steel pipe conveying stability is greatly improved, and steel pipe processing quality is improved.

Description

[0001] This application is a divisional application of the invention application entitled "A Guide Roller for Back Bender and its Guide Idler Manufacturing Method", the application number is 2014108303125, and the application date is December 25, 2014. technical field [0002] The invention belongs to the field of back bending machines, and in particular relates to a method for manufacturing a guide idler in a guide roller for a back bend machine. Background technique [0003] The back bender is a main equipment used in the process of processing the steel pipe after bending. Due to the limitation of the bending machine, the open steel pipe after bending has two straight edges. The straight edge is rolled into an open steel pipe that meets the required roundness. The steel pipe processed by the back bending machine is mainly used in natural gas and other transportation pipelines. Due to the large diameter of the steel pipe processed, the thick pipe wall and the high pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21D43/08
CPCB21D43/08B23P15/00
Inventor 杨思锋
Owner 安徽五洋机床制造有限公司
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