Indirect thermal forming large-tonnage hydraulic machine

Abstract

The invention discloses an indirect thermal forming large-tonnage hydraulic machine, and belongs to the field of indirect thermal forming. The indirect thermal forming large-tonnage hydraulic machine comprises movable workbenches, an electrical cabinet, a hydraulic machine upper beam and a hydraulic machine lower beam, the hydraulic machine upper beam and the hydraulic machine lower beam are connected through stand columns, the movable workbenches are arranged on the two sides of the top surface of the hydraulic machine lower beam, an upper die base and a lower die base are arranged between the hydraulic machine lower beam and the hydraulic machine upper beam, the lower die base is fixed to the top surface of the hydraulic machine lower beam, the upper die base is fixed to the bottom surface of a sliding block, a plunger cylinder and a piston cylinder are arranged on the hydraulic machine upper beam, a plunger rod of the plunger cylinder and a piston rod of the piston cylinder are connected with the sliding block, and the electrical cabinet is arranged on the upper side of the hydraulic machine upper beam. The using tonnage of the hydraulic machine ranges from 1500 tons to 2500 tons, the plunger cylinder and the piston cylinder are used for controlling the sliding block, so that the die closing speed is higher, and the pressure building speed of the sliding block is higher; a displacement sensor is used for monitoring movement information of the sliding block and transmitting the information back to the electrical cabinet, and the electrical cabinet controls the oil inlet amount of a proportional valve.

Description

technical field [0001] The invention relates to the field of indirect thermoforming, in particular to an indirect thermoforming large-tonnage hydraulic press. Background technique [0002] Thermoforming processes are currently divided into two categories: direct thermoforming process and indirect thermoforming process. The indirect thermoforming process appeared late and is not widely used at present, but its machinable product range can completely cover and exceed the direct thermoforming process, and has high development potential. [0003] The complete process of the indirect thermoforming process is: cold stamping line blanking, preforming, edge trimming and punching - sending into the heating furnace for heating until austenitization - sending into the mold for shape retention, quenching - cleaning and oiling. [0004] Advantages of the indirect thermoforming process: [0005] 1. There is no limitation on the size and shape of parts, and parts of any shape and drawing...

AI Technical Summary

Problems solved by technology

[0012] Because the blanks for indirect thermoforming are all formed parts, the size and weight of the presses in the production line are larger, it is difficult to realize the process curve, and the motion control and inertia control of large-mass bodies are more difficult. In real scenarios, it is often required To overcome this defect scenario

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