a bending machine

Abstract

The invention relates to a bending device, which belongs to the technical field of bending processing. The bending equipment includes a frame and a clamping unit installed on the frame, a mandrel unit, a pick unit and a bending unit; the bending unit includes a left bending arm and a right bending arm hinged by a bending shaft; the clamping unit It includes a horizontal floating installation frame that can slide along the floating horizontal direction and is installed on the bending arm, and a clamping device installed on the horizontal floating installation frame for clamping the workpiece to be bent. By setting the clamping unit to include a horizontal floating installation frame and a clamping device, the clamping device can freely move relative to the bending arm in the floating lateral direction during the bending process, so as to reduce the impact on the heat exchanger in this floating position. Horizontal constraints can better match the position changes during the bending process to improve the yield of products, and can be widely used in production industries such as evaporators.

Description

[0001] This application is a divisional application for an invention patent with the application number CN201710792636.8 and the invention name "a bending equipment". technical field [0002] The invention relates to bending processing equipment, in particular to a bending equipment for bending workpieces such as evaporators. Background technique [0003] The patent document with the publication number CN104668396A discloses a bending device, which includes a frame and a clamping device installed on the frame for clamping the workpiece, and is used to insert a part of the workpiece where the bending position is adjacent to the inner corner of the bending. On the side, there is a mandrel unit for assisting the bending process of the workpiece, a pick unit for picking the workpiece, and a bending unit for bending the workpiece to a predetermined bending angle. The mandrel unit includes a mandrel, and the bending unit includes a left bending arm and a right bending arm hinged b...

AI Technical Summary

Problems solved by technology

[0005] The applicant found the following problems in the process of bending the flat tube of the microchannel heat exchanger by using the above-mentioned bending equipment: (1) Due to the limited position of the clamping device on the bending arm, there is a strain on the tube. The problem on the surface of the heater leads to a low yield rate of the flat tube; (2) The flat tube at the clamping position on the upper and lower edges is easily damaged and the yield rate of the product is reduced; (3) The bend is found When the equipment bends microchannel heat exchangers of different sizes and models, it needs to replace the clamping device first to reduce the production efficiency of the equipment; (4) It is difficult to make the raised height of the flat tube after bending for the desired height

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