Heavy hydraulic four-hammer radial forging tool

Abstract

The invention discloses a heavy-duty hydraulic four-hammer radial forging tool, which comprises an upper frame, a lower frame, 4 plunger cylinders, 4 hammerhead cylinders, 4 hammerheads, a plunger guide device and a hammerhead anti-rotation device ; The upper frame and the lower frame are connected by pre-tightening bolts to form a closed frame, and the 4 hammer heads are respectively connected with the 4 hammer head cylinders, and are respectively arranged on the upper frame and the lower frame in an "X shape". The force generated in the forging process; the cross-sectional area ratio of the hammer head cylinder and the plunger cylinder is determined according to the magnification of the forging force. Compared with the upper and lower anvil forging method of the original hydraulic press, the present invention adopts four hammerheads to apply load to the forging at the same time, and can complete the forming process of the heavy-duty shaft more quickly, so that the forging precision and forging of the heavy-duty shaft are improved. The quality and forging efficiency are significantly improved, and the machining allowance after forging is significantly reduced. While saving materials, it can save man-hours to the greatest extent and reduce production costs.

Description

technical field [0001] The invention relates to a forging tool, in particular to a heavy-duty hydraulic four-hammer radial forging tool. Background technique [0002] At present, the forging of heavy-duty shaft parts is completed by forging hydraulic presses, which have the disadvantages of low forging precision, poor forging surface quality, large machining allowance, and low forging efficiency. [0003] The radial forging hydraulic press is a special equipment for the production of shaft forgings. Although the efficiency is very high, it is more suitable for the mass production of medium and small shaft forgings, and the equipment investment is very large. If the forgings cannot reach a certain output, it is difficult to generate economic benefits. [0004] The mechanical radial forging tool applies pressure to the tool through a hydraulic press, and realizes four-point radial synchronous forging through wedges inside the tool. However, due to the small forging force of th...

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Problems solved by technology

[0002] At present, the forging of heavy-duty shaft parts is completed by forging hydraulic presses, which have the disadvantages of low forging precision, poor forging surface quality, large machining allowance, and low forging efficiency.

[0003] The radial forging hydraulic press is a special equipment for the production of shaft forgings. Although the efficiency is very high, it is more suitable for the mass production of medium and small shaft forgings, and the equipment investment is very large. If the forgings cannot reach a certain output, it is difficult to generate economic benefits.

[0004] The mechanical radial forging tool applies pressure to the tool through a hydraulic press, and realizes four-point radial synchronous forging through wedges inside the tool. However, due to the small forging force of this tool, it can only complete the forging of large and medium-sized shaft parts. There is wear and tear during the forging process, and the tools cannot guarantee the consistency of the forging center during the forging process, and cannot complete accurate rapid forging, and there are disadvantages such as low forging precision, poor forging surface quality, large machining allowance, and low forging efficiency

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