Bending unit for long automotive tubes

Abstract

The invention discloses a bending device suitable for long automobile pipe fittings. The bending device comprises a rack, a rotating mechanism, a left die mechanism, a right die mechanism and a guidemechanism. The rotating mechanism comprises a rotating frame, a rotating motor, a rotating shaft, a rotating chain and a rotating gear sleeving the rotary shaft. The left die mechanism comprises a left clamping die base, cross rods, swing arms and a pipe pressing mechanism. The right die mechanism comprises a right clamping die base, a clamping die sliding frame and a clamping die air cylinder. The rotating frame is provided with a clamping die sliding rail vertical to the advancing direction of the pipe fittings. The guide mechanism comprises a guide seat, a guide sliding frame and a guide air cylinder. The bending device has the beneficial effects that the bending device can be automatically adjusted according to the sizes of the pipe fittings to press the top faces of the pipe fittings,so that it is guaranteed that the pipe fittings cannot jump in the bending process, the bending device is suitable for the long pipe fittings, and the situation that the rear portions of the pipe fittings move downwards, so that damping is increased is avoided.

Description

technical field [0001] The invention relates to a bending device, especially a bending device suitable for long automobile pipe fittings. Background technique [0002] At present, in the production field of auto parts, the bending process of pipe fittings needs to be carried out with matching bending machines. The main structure of the commonly used bending machines is to use two clamping dies to bend the pipe fittings Advance clamping, and then rotate with one of the clamping molds as the center of rotation, so as to complete the bending of the pipe. For example, the prior art CN201711281173.5 discloses a pipe bending device in a pipe bending machine. The main shaft of the belt wheel module is arranged on the pipe bending machine frame, and the main shaft is driven by a driving device. One end is fixed on the main shaft through the connecting sleeve, the other end of the elbow arm is the swing end, one end of the outer protective plate is set on the outer surface of the el...

AI Technical Summary

Problems solved by technology

However, this type of device has the following defects: it can only bend pipes of a specific size. If pipes of different sizes need to be bent, it is necessary to replace the equipment with matching sizes. The bottom surface of the bearing pipe and the two sides of the clamping pipe can be used for pipes of different sizes. However, this generalization method does not make the top surface of the pipe unpressed, especially for long pipes. Under the circumstances, the pipe fittings located outside the working range of the bending equipment will also sway when the equipment is in working condition. It affects the quality of the bent pipe fittings; when the length of the pipe fittings is long, the center of gravity is biased towards the rear, so the rear pipe fittings tend to tilt downward, and there will be a certain damping when the pipe fittings travel

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