JPS58176042A - Die of horizontal press - Google Patents

Abstract

PURPOSE:To reduce remarkably a finish cutting quantity, and to obtain a continuous metallic flow, by using a push anvil provided with a pair of arc-like projecting pieces which can be fitted into a fixed anvil, and a die which forms in advance a desired curvature face on its port edge. CONSTITUTION:An ignited end part of a round bar A, projected by specified length is press-clamped by an anvil 3, a die 4 and a ring 10, the other end is supported and fixed horizontally by a moving frame, and after that, upsetting of a flange F part is executed by operating a push-anvil 5. The round bar end part is inserted plastically along the inside face of the fixed anvil 3 and the die 4 by an operation of the push anvil 5, and a prescribed flange F is forged and formed. In this case, circular arc-like projecting piece 5', 5' rotating by a specified angle at every 1 stroke are fitted into the fixed anvil, and upsetting pressure is raised sufficiently. In this way, upsetting is executed by controlling the external form by the fixed anvil, and also a specified curvature face (r) is provided on the part of the die, therefore, a cutting quantity of each face of the flange is reduced, cutting of a metallic flow is minimized, and strength of the shaft is raised.

Description

DETAILED DESCRIPTION OF THE INVENTION A complete horizontal press with an upsetter used for forging shaft materials with 7 flange Ys on one or both ends, such as 00 BA piston rods.

If you ask me, when forging a large 11-piece member with 7 langes at the shaft end, such as a piston rod for a ship, conventionally you would have to prepare a 9H material with a diameter that corresponds to the diameter of the 7 langes. Apply scorching heat and make a cut leaving the desired flange thickness at one end.
Since the method of stretching the steel material to a predetermined diameter was used, the entire steel material was heated.
This method requires large equipment, and this method leaves a lot of excess material on each part, so finishing requires an increase in the amount of cutting required and, in particular, the complexity of centering work, resulting in unavoidable processing costs. This is a serious problem not only in terms of work efficiency, but also in terms of material strength since all of the metal flow for the upper !8"77 lunges is cut.

On the other hand, with the purpose of eliminating the drawbacks of conventional forging forged pipes as described above, the applicant has previously developed a horizontal press, and has already developed a horizontal press (patent #FF 107b173).
To explain the cost of the sales equipment shown in Figure 1 VC, 1 has 7 bed frames, 2 is a fixed frame with the middle VL of the bed frame 1 installed, and the above fixed frame. 2rC- is a half-split anvil 3 and die 4
While it is wearable.

#Cross head 6 with 5 push anvils attached to -N of fixed frame? , and the end of round steel A in other II? Is the movable frame 7 that receives it sliding? EK# is a key word.

In Figure 1, 8 is a cylinder frame that pushes the push anvil 5 through 6 crossheads, and 9 is a rotating device for the push anvil, which is capable of rotating by a constant angle per one stroke of the push anvil. .

In the above-mentioned horizontal press device, round steel A with the desired shaft diameter is reserved.
11'r: After soaking the heat, the rhombus is made to protrude from the 3 sides of the anvil of the above solid foot frame, and its end 1rJ-1c
! It is fixed horizontally by the movable frame 7.

Traditional Segiri forging is done by upsetting the push anvil 5, the anvil 3, and the die 4 in the dark! ! This device has largely solved many of the problems seen in
Up until now, the push anvil 5 has been flat and the die 40 has been at a right angle, so for example, the second
A piston rod with the shape shown on the edge of the figure? When forging,
In particular, there is still a lot of excess material (diagonal iIs in Fig. 2) on the outer circumference of the flange (VI), the base of the 7 flange (CI), which requires a certain level of self-processing, or the step ←9 on the flange surface. n.In addition to the large amount of cutting, the metal flow in the parts (a), (b), and (c) above was cut, and the shaft strength deteriorated. The problem of lowering the value remained.

In view of the actual situation, the inventor of this case should further research and improve. For example, when forging a large piston rod with the shape shown in Figure 5, one piece can be inserted into the fixed anvil.
! By using a push anvil with a pair of arcuate protrusions of 74 m and a die whose mouth edge has been formed with a desired curvature orientation in advance, die forging that is extremely close to the final shape of the desired shaft member can be obtained. The final cutting amount was reduced by a large width, and a continuous metal flow of 11" was successfully obtained.

The configuration will be described in more detail below based on the embodiment shown in Figure 3.4.
The ll-shaped anvils 3, 3 have an inner diameter Y when they are divided into r pieces.
At a position approximately matching the outer diameter of the flange F of Pfr\U and set back from the end face by a distance equivalent to 72 inches thick, there is a half-shaped half with a curved surface configuration that can be seen from the curvature (r) of the 1st round edge r7 flange base. Place the split die 4.4r in the box and insert the ring 10r from the outside of the fixed anvil 3.
It is possible to fix the M material in one piece.

On the other hand, Oshikatako 5, who was facing Kon, was 6 meters away.

The above-mentioned anvil 31LM has a certain width and thickness that can be handled by a person, and has a protruding flange F, and H-arc-shaped protrusions 5' and 5'r with a height v9Is that exceeds <F/ are installed oppositely, and for each stroke. It rotates at a certain angle and appears to be attending.

In addition, it is necessary to form a concave hole on the end face of the flange Fc1).
! ! ! In the event of a certain event, in the center of the surface of the Kamioshikaishiki 5,
5) The convexity of the present invention can be made by raising it (Fig. 3.4). If you want to install and forge a specific piston rod r, please check the above circle *AcI) #! 3
The above anvil 3. It is compressed with the die 4 and the link 10, and the other end r is attached to the movable frame 7.
Therefore, in addition to being supported and fixed horizontally, the push anvil 51r is operated by the cylinder 8 and the rotating device 9, and the upsetting tube is carried out for 7 u/di Fi, which is the same as the conventional horizontal forging, but the above-mentioned round steel At the 1111 part, the push anvil 5 enters along the fixed anvil 3 and the turn IYI in the turn 4, and the predetermined 7 langes F are forged and formed.

In this case, one person is placed inside the fixed anvil and the arc-shaped protrusion 5.5 of the push anvil rotates at a constant angle with the -stroke g&, and the upsetting pressure is applied to the steel anvil. The molding effect of internal light is good in cypress wood, and a forged product close to the final shape can be easily obtained.

As described above, according to the present invention, the fixed anvil can be used to maintain the outer shape of the hem while maintaining the outer shape. At the same time, a certain degree of curvature (rj1r) was provided at the die mouth.Therefore, the forged product had a cutting PA of 7 langes on each side at the finishing stage.
The sleeve flange not only significantly reduces u and makes it possible to greatly improve the efficiency of work, but also minimizes the cutting of metal flow in each of the above parts and increases the shaft strength. This brings about remarkable strength in forging large shaft S materials.

[Brief explanation of drawings]

Figure 1 is a front view of a conventional horizontal press with a kettle type.
Figure i2 shows the @ side view of the piston rond forged with the conventional mold, and Figure 3 shows the longitudinal Ifrl of the center of the mold of the present invention.
i! ] Figure 144 shows the front view of the anvil,
Further, FIG. 5 shows an am diagram of a piston rond inserted by the mold of the present invention. In Figure 1, 1... Bed frame, 211 Fixed frame, 30 Fixed anvil, 4... Dice, 5... Push anvil, 6... Cross head 0, 7... Tsukasa! 111J7 frame, 8 cylinder frame, 9 rotating clamp, toy ring. Patent originator Kansai Tekko Co., Ltd. Dansha

Claims (1)

[Claims] 1. In the middle of the bed frame 1, there are two fixed frames to which a half-split kettle 3 and four dice can be attached, and on one side of the upper F fixed frame 2, each stroke is fixed. constant angle hard 1
A horizontal press V is provided with a movable frame 1r that supports the steel material on the ftP side of the rotary oJ with a quiet press plate 5n south, and a die with a constant curved surface configuration on the upper side, and the die 4r. Patented patent for the fact that while retreating a certain distance from the end face of the anvil 3 and inward, the opening v of the upper anvil v3 of the push anvil 5 is installed 2. The mold for a horizontal press according to claim 1, wherein a convex portion 51r is raised at the center of the pressing surface of the pusher glI5.