CNC hydraulic shearing machine

Abstract

The invention discloses a numerical control hydraulic plate shear, which comprises a plate shear body, a left wall body, a right wall body, a tool rest, a material retaining plate, a back material retaining bracket, a variable-speed and material-sorting type following material support device and a back material retaining plate adjusting and lifting device, wherein the back material retaining bracket is arranged under the tool rest, the tool rest is positioned between the left wall body and the right wall body, the variable-speed and material-sorting type following material support device and the back material retaining plate adjusting and lifting device are arranged between the left wall body and the right wall body, and the back material retaining plate adjusting and lifting device is arranged under the back material retaining bracket. The hydraulic plate shear has the advantages that the variable-speed and material-sorting type following material support device has variable speed, plate material sorting and stable following property, so the working efficiency of the plate shear is improved, the automation degree is improved, the labor cost is reduced for an user, and simultaneously the safety hidden hazards caused by the manual plate material sorting are avoided; the travel of the back material retaining plate of the plate shear is increased through the turnover movement of a bracket by the back material retaining plate adjusting and lifting device, so a steel plate exceeding the traveling range of the material retaining plate can be sheared in a larger range.

Description

technical field [0001] The invention relates to a shearing machine, in particular to a variable-speed and material-dividing follow-up supporting device for the shearing machine. Background technique [0002] During the shearing process of the existing plate shearing machine, due to the downward shearing effect of the plate material by its own gravity and the tool rest, the plate material will have defects such as deformation of the plate material and large positioning accuracy error after the shearing is completed. [0003] In order to solve the defect of this design, the existing technology is to add a pneumatic material support device to the shearing machine. It descends with the tool rest simultaneously to support the sheared sheet, and after the shearing is completed, the support arm turns over to unload the material; since the lifting of the pneumatic support is driven by a cylinder pulling the chain, it must move slowly with the knife rest when descending. After the s...

AI Technical Summary

Problems solved by technology

[0002] During the shearing process of the existing plate shearing machine, due to the downward shearing effect of the plate by its own gravity and the tool holder, the plate will have defects such as deformation of the plate and large errors in positioning accuracy after the shearing is completed.

[0003] In order to solve the defect of this design, the existing technology is to add a pneumatic material support device to the shearing machine. It descends with the tool rest simultaneously to support the sheared sheet, and after the shearing is completed, the support arm turns over to unload the material; since the lifting of the pneumatic support is driven by a cylinder pulling the chain, it must move slowly with the knife rest when descending. After the shearing is completed, the speed cannot be changed. The shearing machine must wait for the support arm of the pneumatic support to rise to the position before the shearing work can be carried out. Therefore, the addition of the pneumatic support device to the existing shearing machine affects the shearing machine. Shearing speed, resulting in reduced work efficiency

[0004] Usually, when each steel plate is cut, it will be trimmed as the positioning reference when the sheet is cut. When trimming, the waste and the finished product will be mixed together, and only manually can be separated at the back of the shearing machine. This will not only increase the labor cost of the user, but also cause safety hazards due to the large impact force when the sheet material slides out from the pneumatic support device after shearing;

[0005] Since the added pneumatic support is driven by a cylinder in the middle to pull the chain to rise, and the descent is to fall by its own weight. If there is an unbalanced load or the resistance of the two sides is different, the follow-up performance of the device will be deteriorated. Affected the follow-up performance of the pneumatic support

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