Bending machine suitable for thickened automobile pipe fittings

Abstract

The invention discloses a bending machine suitable for a thickened type automobile pipe fitting. A rack, a rotation mechanism, a left die mechanism, a right die mechanism and a tight abutting mechanism are included. The rotation mechanism comprises a rotation frame, a rotation motor, a rotation shaft, a rotation chain and a rotation gear sleeving the rotation shaft. The left die mechanism comprises a left clamping die base, a transverse rod, a swing arm 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, and the rotation frame is provided with a clamping die sliding rail perpendicular to the pipe fitting advancing direction. The tight abutting mechanism is located at the position behind the right die mechanism in the pipe fitting advancing direction and comprises a tight abutting die base, a tight abutting sliding frame and a tight abutting air cylinder. The bending machine has the beneficial effects that during left-right pipe fitting clamping, pipe fitting top face pressing can be automatically adjusted according to the size of the pipe fitting, accordingly, it is ensured that pipe fitting playing cannot happen in the bending process, the technical purpose of full-size square pipe fitting bending is achieved, meanwhile, the bending machine is suitable for the thickened type pipe fitting, and die damage can be reduced.

Description

technical field [0001] The invention relates to a bending machine, especially a bending machine suitable for thickened 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...

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Problems solved by technology

However, this type of device has the following defects: it can only be bent for pipe fittings of a specific size. If pipe fittings of different sizes need to be bent, it is necessary to replace the equipment with matching sizes. If the existing mold base for clamping pipe fittings is modified, only 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. Affect the quality of bent pipe fittings

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