CN211331155U - Slender rod type step shaft forging die - Google Patents

Abstract

The utility model belongs to the technical field of forging mould, in particular to a slender rod type step shaft forging mould; the mould consists of a moulding bed outer sleeve (1), a left forming valve (2), a right forming valve (3) and an upper cover (4); the left molding petal (2) and the right molding petal (3) are of symmetrical structures, the inner shapes of the left molding petal and the right molding petal are matched with the slender rod part of the slender rod stepped shaft, and the outer parts of the left molding petal and the right molding petal are in clearance fit with the inner part of the tire mold jacket (1); the outer part of the upper cover (4) is in clearance fit with the inner parts of the left forming valve (2) and the right forming valve (3); the inner shape of the ladder shaft is matched with the short rod part of the long and thin rod ladder shaft; adopt the utility model discloses a large amount of metal materials are practiced thrift to the mould, reduce forging machining man-hour, easy operation, have improved labor efficiency.

Description

A slender rod-like stepped shaft forging die

technical field

The utility model belongs to the technical field of forging molds, in particular to a slender rod-type stepped shaft forging mold.

Background technique

Die forging is a forging method between free forging and die forging. It has some features of free forging: simple equipment and tools, flexible and diverse processes; and some features of die forging: the metal is formed in the die cavity, and forgings with complex shapes and accurate dimensions can be obtained, and the production efficiency is high. As shown in Figure 1, the slender shaft and stepped shaft forgings are divided into a short rod part and a slender rod part. The length of the slender rod part is greater than 180mm and the diameter is less than 30mm. The forgings are forged from bars. The conventionally designed tire mold is shown in Figure 2. In actual production, one end of the forging should be elongated with a slinger, and then the drawn end is put into the tire mold for forging. Because the diameter of the forging rod is very small , The ejection inclination is small, and the forging is slender, and the conventional forging die is used for forming. If the draft angle is increased, it will cause serious material waste.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a tire mold suitable for forging of slender rod stepped shaft forgings, so as to solve the technical problems of difficult forgings, long production cycle and low efficiency in current actual production.

In order to solve this technical problem, the technical scheme of the present utility model is: a slender rod type stepped shaft forging die, the slender rod type stepped shaft forging die is formed by a tire mold jacket 1, a left forming valve mold 2, and a right forming part. The valve mold 3 and the upper cover 4 are composed;

The left forming flap mold 2 and the right forming flap mold 3 are of symmetrical structure, the inner shape is matched with the elongated rod portion of the elongated rod stepped shaft, and the outside is matched with the inside of the tire mold jacket 1 in a gap;

The outside of the upper cover 4 is in clearance fit with the inside of the left forming flap mold 2 and the right forming flap mold 3; the internal shape matches the short rod portion of the slender rod stepped shaft.

When the slender rod-type stepped shaft forging mold is in use, the left forming valve mold 2 and the right forming valve mold 3 are symmetrically placed in the tire mold jacket 1, and the forging preform rod is placed in the left forming valve mold 2 and the right forming valve mold. Between the flap molds 3, cover the upper cover 4 for forging.

The tire mold jacket 1 fastens and positions the left forming flap mold 2 and the right forming flap mold 3 .

The material of the tire mold jacket 1 is mold steel.

The material of the left forming flap mold 2 and the right forming flap mold 3 is die steel.

The material of the upper cover 4 is die steel.

The beneficial effects of the utility model are: the mold of the present utility model is based on the original tire mold, and the tire mold is designed as a combined tire mold of a set mold and a half mold, and the molding has no influence on the quality of the forgings. It is easy to eject the forgings, and there is no problem that the forgings are riveted in the mold, and even do not design the inclination of the forgings, which saves a lot of metal materials and reduces the machining time of the forgings. Moreover, the worker's operation has also become simple, and the labor efficiency has been improved.

Description of drawings

In order to illustrate the technical solutions implemented by the present invention more clearly, the following will briefly explain the accompanying drawings that need to be used in the examples of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

Figure 1 is a schematic diagram of a slender rod stepped shaft forging;

Fig. 2 is the tire mold installation structure schematic diagram of conventional design;

Fig. 3 is the mold structure schematic diagram of the present utility model;

Fig. 4 is the schematic diagram after the mould assembly of the utility model;

Among them, 1- tire mold jacket, 2- left forming flap mold, 3- right forming flap mold, 4- upper cover.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The features of various aspects of the embodiments of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is only for a better understanding of the present invention by illustrating examples of the present invention. The present invention is not limited to any specific settings and methods provided below, but covers all product structures and methods without departing from the spirit of the present invention. Any improvements, replacements, etc. are covered.

In the various drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.

The slender rod-type stepped shaft forging die of the present utility model is described below in conjunction with the accompanying drawings:

As shown in Figure 3, the slender rod-type stepped shaft forging die of the present utility model is composed of a tire mold jacket 1, a left forming flap mold 2, a right forming flap mold 3 and an upper cover 4, and each part is made of mold steel; The left forming flap mold 2 and the right forming flap mold 3 are symmetrical structures, the internal shape is matched with the elongated rod portion of the elongated rod stepped shaft, and the outside is matched with the inside of the tire mold jacket 1; the described The tire mold jacket 1 fastens and positions the left forming flap mold 2 and the right forming flap mold 3 . The outside of the upper cover 4 is in clearance fit with the inside of the left forming flap mold 2 and the right forming flap mold 3; the internal shape matches the short rod portion of the slender rod stepped shaft.

When the mold is in specific use, the left forming valve mold 2 and the right forming valve mold 3 are placed symmetrically in the tire mold jacket 1, and the forging preform rod part of the thrown rod is placed into the left forming valve mold 2 and the right forming valve mold 3. During the time, cover the upper cover 4 for forging.

After the forging is completed, the mold is turned 90°, and the left forming segment die 2 and the right forming segment die 3 can be knocked out together with the forging by a hand hammer. The use of conventional forging dies for forming is avoided, the forgings are difficult to come out of the die, and the forgings are often easily riveted in the die, resulting in the technical problems of long forging production cycle and low efficiency.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art is within the technical scope disclosed by the present utility model, Various equivalent modifications or replacements can be easily conceived, and these modifications or replacements should all be included within the protection scope of the present invention.

Claims (6)

1. A slender rod class stepped shaft forging die is characterized in that: the slender rod class stepped shaft forging die is composed of a tire mold jacket (1), a left forming flap die (2), a right forming flap die (3). ) and the upper cover (4); The inner shape of the left forming flap mold (2) and the right forming flap mold (3) is matched with the elongated rod portion of the elongated rod stepped shaft, and the outside is matched with the inside of the tire mold jacket (1) in a gap; The outside of the upper cover (4) is in clearance fit with the inside of the left forming flap mold (2) and the right forming flap mold (3); the internal shape is matched with the short rod portion of the elongated rod stepped shaft. 2 . The slender rod-like stepped shaft forging die according to claim 1 , wherein the left forming segment mold ( 2 ) and the right forming segment die ( 3 ) are symmetrical structures. 3 . 3. The slender rod-like stepped shaft forging die according to claim 2, wherein the tire mold jacket (1) fastens the left forming flap mold (2) and the right forming flap mold (3), position. 4. The slender rod-type stepped shaft forging die according to claim 2, characterized in that: the material of the tire mold jacket (1) is die steel. 5. The slender rod-type stepped shaft forging die according to claim 2, wherein the material of the left forming flap die (2) and the right forming flap die (3) is die steel. 6 . The slender rod type stepped shaft forging die according to claim 2 , wherein the upper cover ( 4 ) is made of die steel. 7 .

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