Hydraulic Presses with Impact Correction Devices

A technology of hydraulic presses and stamping devices, applied in the field of hydraulic presses, can solve problems such as oil pumps and oil pipes placed in disorder, limited processing capacity, inconvenient operation, etc., and achieve the effects of improving service life, high service life and ensuring quality

CN106985433BActive Publication Date: 2019-03-26JIANGSU MINGGE FORGING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-03-26

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Abstract

The invention discloses a hydraulic machine with an impact correction device. The hydraulic machine comprises a base, a four-column frame, a stamping device, a hydraulic oil cylinder and a PLC control device. The stamping device is connected to the top position of the four-column frame to conduct up-down stamping. The hydraulic oil cylinder is connected with an oil supply device through a three-way overflow valve. The impact correction device comprises a flexible impact ring, an elevation device and a back-flushing hydraulic oil cylinder. The flexible impact ring is fixed to the top position of the base through the elevation device. The other end of the three-way overflow valve is connected with the elevation device of the impact correction device so that the flexible impact ring can be opened or locked, and the back-flushing hydraulic oil cylinder is supported at the bottom of the base through a jack structure. According to the hydraulic machine, the flexible impact ring is arranged above the base, the flexible impact ring is jacked up through the back-flushing hydraulic oil cylinder and the jack structure of the impact correction device, and relief of the overlarge stamping force of the stamping device is achieved.
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Description

technical field

[0001] The invention relates to the technical field of hydraulic machines, in particular to a hydraulic machine with an impact correction device. Background technique

[0002] A hydraulic press is a machine that uses hydrostatic pressure to process metal, plastic, rubber, wood, powder and other products.

[0003] It is often used in pressing process and pressing forming process, such as: forging, stamping, cold extrusion, straightening, bending, flanging, sheet drawing, powder metallurgy, pressing and so on. Existing hydraulic presses are classified according to their structural forms, including four-column type, horizontal type, vertical frame and multi-layer steel belt winding frame. Among them: medium and small vertical hydraulic presses often use a single-column type, also known as a C-frame type, and the single-column hydraulic presses are open on three sides. However, various existing hydraulic presses, especially single-column hydraulic presses, are ...

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Embodiment Construction

[0015] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0016] Such as figure 1 As shown, the hydraulic press with the impact correction device includes a base 1, a four-column frame 2, a stamping device 3, a hydraulic cylinder 4 and a PLC control device 9, and the stamping device 3 is connected to the top of the four-column frame 2 for stamping up and down; the hydraulic cylinder 4 passes through a The three-way overflow valve 5 is connected to the oil supply device 6; the impact correction device 7 includes a flexible impact ring 71, a lifting device 72 and a recoil hydraulic cylinder 73; the flexible impact ring 71 is fixed on the top position of the base 1 through the lifting device 72 The other end of the three-way overflow va...