Combined type die holder used for die forging press

Abstract

The invention discloses a combined type die holder used for a die forging press. The combined type die holder comprises a die holder body, a die holder center die and a die holder cushion ring. The die holder body is located outside the combined type die holder and has a cylindrical structure with the two ends opened, and the cylindrical structure has the appropriate thickness. The die holder center die has a cavity structure with the top opened, the die holder center die and the die holder body have the same center line, the die holder center die is installed on the lower half part in the cylindrical structure of the die holder body in a replaceable manner, and a material ejection rod pass hole is formed in the portion, at the bottom position of the cavity structure, of the die holder center die. The die holder cushion ring is of an annular structure, the annular structure, the die holder body and the die holder center die have the same center line, and the die holder cushion ring isinstalled on the upper half part in the cylindrical structure of the die holder body in a replaceable manner and is arranged on the top of the die holder center die. By means of the combined type dieholder, the internal stress borne by the die holder in the pressed process can be released, and therefore the possibility that cracks generated due to stress concentration extend to the die holder body is avoided, and the service life of the die holder can be greatly prolonged.

Description

Technical field [0001] The invention relates to the technical field of molds, and in particular to a combined mold base for a die forging press. Background technique [0002] During the forging forming process of the forging, the press die seat plays an important role in supporting, fixing and installing the forging die, and bears all the forming pressure of the forging applied by the press and all the die weight. Under normal circumstances, the press die holder is the die with the largest volume and weight, the longest manufacturing cycle, and the more complex structure in the forging die. Its material cost and processing cost are also extremely expensive; because the die holder does not directly contact the workpiece when it is working, Generally, it should be a mold with a long life. [0003] figure 1 It schematically shows a die seat structure for a die forging press in the prior art, where figure 1 The lower view schematically shows a partial top view of the above-mentioned m...

AI Technical Summary

Problems solved by technology

Afterwards, under the frequently alternating working pressure of the press, the crack can gradually expand and extend, and finally the whole body cracks can occur, resulting in the short-term scrapping of the entire large mold base, greatly shortening the service life of the mold base, and causing inconvenience to the die forging enterprise. due economic loss

In addition, during the use of the mold base, it is easy to deform near the center hole of the upper end surface, which seriously affects the accuracy of the mold base.

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