Positioning device used for numerical control tube bending machine

Abstract

The invention discloses a positioning device used for a numerical control tube bending machine. The numerical control tube bending machine comprises a machine tool spindle. The positioning device comprises a left flange plate, a right flange plate and a spring arranged between the left flange plate and the right flange plate. Either of the left flange plate and the right flange plate can overcome the elastic force of the spring to move axially relative to the other flange plate which is fixedly connected with the end face of the machine tool spindle of the numerical control tube bending machine. The space for relative movement of the left flange plate and the right flange plate is controlled within the range of 3-5 mm. The overall axial length of the positioning device is consistent with the length of the portion, removed from the numerical control tube bending machine, of the machine tool spindle. According to the positioning device used for the numerical control tube bending machine, an elastic buffer space is provided for rebounding of a tube in the tube feeding process of the numerical control tube bending machine by replacing a positioning mechanism on an original numerical control tube bending machine, and the rebounding problem of the tube in the tube feeding process is effectively solved accordingly; and the stability of an original equipment spindle positioning device is greatly promoted, the tube machining dimension precision is greatly improved, and the rejection rate is decreased to the maximum.

Description

technical field [0001] The invention belongs to the field of pipe fitting processing, in particular to a positioning device mainly used for a numerically controlled pipe bending machine. Background technique [0002] Although the CNC pipe bending machine is a high-precision equipment for processing pipe fittings, the elastic strength of the metal pipe has not been fully considered in the design and manufacture of the equipment, such as figure 1 As shown, when the operator is performing the pipe loading operation, since the end face of the processed pipe fitting is in rigid contact with the positioning end face of the machine tool, it is very easy to have the springback phenomenon of the pipe fitting, which will result in Output errors, resulting in scrap. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems and provide a positioning device for a numerically controlled pipe bender that can realize fast clamping and...

AI Technical Summary

Problems solved by technology

[0002] Although the CNC pipe bending machine is a high-precision equipment for processing pipe fittings, the elastic strength of the metal pipe has not been fully considered in the design and manufacture of the equipment, such as figure 1 As shown, when the operator is performing the pipe loading operation, since the end face of the processed pipe fitting is in rigid contact with the positioning end face of the machine tool, it is very easy to have the springback phenomenon of the pipe fitting. Output errors, resulting in scrap

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