Die bending device in full-automatic numerical control hydraulic pipe bender

Abstract

The invention discloses a die bending device in a full-automatic numerical control hydraulic pipe bender. The die bending device comprises a wheel die, wherein the wheel die is internally provided with an inner cavity with a piston, the inner cavity is divided by the piston into a left inner chamber and a right inner chamber which are not communicated with each other, the piston is in threaded connection with a piston rod, a cylinder cover is fixed on the wheel die, a cylinder cover seal cover presses the inner cavity, the piston rod movably penetrates through the cylinder cover to be fixedly connected with an upper split block, the piston rod is in sealing contact with the cylinder cover, a left inner chamber is communicated with a first through hole in the wheel die, a right inner chamber is communicated with a second through hole in the cylinder cover, a forked tail block matched with the upper split block is fixed on the wheel die, the upper split block can slide along the forked tail block under the pushing of the piston rod, a lower split block is further fixedly arranged on the wheel die, and the lower split block is arranged under the upper split block, and can work together with the upper split block to clamp a pipe fitting. When the die bending device is used for bending a pipe, the pipe fitting can move in a demoulding and tilting way, so that a coil pipe can be bended.

Description

technical field [0001] The invention relates to a fully automatic numerically controlled hydraulic pipe bending machine, in particular to a bending die device in the fully automatic numerically controlled hydraulic pipe bender. Background technique [0002] Fully automatic CNC hydraulic pipe bending machine is one of the most ideal processing equipment for bending small and medium-sized pipes. It is mainly used in the manufacture of spare parts in the fields of automobile industry, health sports equipment, furniture industry, medical equipment, construction machinery and equipment. [0003] The structure of the bending die device in the current fully automatic numerical control hydraulic pipe bending machine is as follows: comprising: a wheel die, a piece is fixedly installed on the wheel die, and when working, the wheel die is fixedly arranged on the pipe bending arm. [0004] The working principle of the bending die device with the above structure is as follows: when worki...

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Problems solved by technology

[0005] The disadvantage of the bending die device with the above structure is that the bending die device can only rotate around the main shaft when it is working, and cannot move in the radial direction, so that when the long waist coil is bent, the pipe cannot be demoulded or tilted.

Therefore, the bending die device of this structure cannot bend the coil

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