JPS58192644A - Upsetter for simultaneously forging plural materials - Google Patents

Abstract

PURPOSE:To forge easily and simultaneously plural blank materials whose volume is different from each other, by improving a fluid pressure cushion mechanism, in an upsetter provided with said mechanism, which is capable of coping with the variation of volume of the blank materials. CONSTITUTION:A fluid pressure cushion mechanism 17 is constituted by fitting oil tightly a pressure ram 20 so as to be freely slidable to a maximum diameter fluid pressure cylinder 19. In the cylinder 19, a cylinder part 23 whose sectional area is half of said cylinder is formed, a movable ram 22 is fitted independently to said part, and a punch 14 and a punch 13 are installed to the ram 22 and the cylinder 19, respectively. In this state, when a punch driving device 21 is operated in the upset direction, fluid pressure of the cylinder 19 is compressed as the ram 20 advances, the force corresponding to a full load of the punch is received. In this case, first of all, the punch 14 precedes and advances through the ram 22, and a thick pipe blank material P1 in the forming part of a split die 10, and subsequently a thin pipe blank material P are subjected to an upset-processing, respectively.

Description

[Detailed Description of the Invention] The present invention enables simultaneous forging of multiple pieces of material with different volumes in relation to an upsetter for simultaneous forging due to multiple Vl, thereby greatly increasing productivity. Try to improve
The purpose is to

An upsetter with a hydraulic cushion lance structure that can accommodate material variations as illustrated in FIGS. 1 to 6 is known.

That is, in Figures 1 to 1g3, 1l)j'1ll
It is a proportion type (2) punch having an E-shaped part, which can be inserted into and removed from the m-shaped part, and has a fluid pressure sill (3) and a companion pressurizing ram (4) that is oil-tightly fitted therein. In this example, it can be driven by a crank-shaped punch drive mechanism (ve position) (6) through a fluid pressure cushion Ikllliin, and (7) in Fig. 1 indicates a pressure accumulator.

First, Fig. 1 shows a thin wooden pipe (pi
Set the age and show the following case, Wi2 figure (a) (bI
shows the case of upsetting a thick inner pipe (F?) = of one piece of wood, but upsetting pipes and other materials individually in this way is inefficient in terms of productivity. Therefore, as shown in Fig. 3 1a) fb), the proportion type ill
An upsetter for simultaneous forging of a plurality of M pieces has been proposed, in which K forming parts are arranged side by side and punches (2) can be freely inserted and removed in correspondence with each forming part.

In the upsetter shown in Fig. 3, there is no volume difference between the materials.If there is a VC, simultaneous forging diFl is possible, but if there is a volume difference between the materials, as shown in Fig. 3 fb). Simultaneous forging is not possible.

The present invention was developed in view of the actual situation, and by improving the fluid pressure cushion mechanism, it is possible to forge several pieces at the same time even if the materials have different volumes. The main purpose of this invention is to achieve this easily, and therefore, in the present invention, *& molding parts are arranged side by side, and a sunken mold, a size-n ratio punch and The punch is equipped with an upset mechanism including a punch drive device that drives the punch via an R body pressure cushion mechanism. A pressurizing ram is configured to be freely fitted, and a punch is housed in the fluid pressure cylinder. The first feature is that pressurizing movable rams equipped with a punch at the end corresponding to the load can be manufactured independently of each other (and are fitted together).

Further, in addition to the first feature, a configuration is added in which the bunch attached to the pressurizing movable ram can advance in the upsetting direction in advance of the punch when attached to the cylinder. is the second feature.

The embodiment of the present invention will be described in detail below with reference to the drawings. Figure 4 Each figure shows the structure and operation of the first embodiment of the present invention, and the clear figure shows the structure and operation of the first embodiment of the present invention. The mold j has a plurality of molded parts Ill and QZ on its mating surface g, in this example two pieces are
has been done. A304 is a punch, holder 〇61
A removable VCTX is attached with a screw structure, etc., and the corresponding molding! 1111 (121) AK can be inserted and removed.

The u71 is a fi body cushion mechanism, which is connected to the pressure accumulator α (to), and the fluid pressure cylinder αIIC pressure ram with the largest diameter that can handle the full load of the A7t punch is fitted in an oil-tight manner so as to be freely movable. In the case of the pressure ram-vcVi wooden example, a crank-shaped punch driving device circle is pivotally connected.

Therefore, one of the punches i13 (141) is attached to the fluid pressure cylinder f191, but the other one is attached to another pressurizing movable ram.

That is, the cylinder part 1231, which has a cross-sectional area ta of C1 part 2 with respect to the cross-sectional area of the fluid child cylinder (corresponding to the pressurizing area of the pressurizing ram), is reshaped into a fluid child cylinder, and the cylinder part EIIICKada b1 The movable ram can be operated independently, and the VCC is connected, and the pressurized movable ram is attached to the ratio punch G.
4 is attached to the cylinder head of the fluid cylinder 1, so that it is always in a direction Tlci with respect to the friend punch a3 and can advance in the C upset direction.

The work IIJ will be explained with reference to each figure of Wi4.

! In Figure 4 fa), pipe materials (P) (P+) are attached to each molding part 1111021 between the split molds, and a grip (not shown) is attached to prevent the axial movement of the materials (pi (P+)). It is held by a mechanism.

Then, the punch drive device! 211'e upset direction is operated, and this causes the fluid pressure cylinder a
The fluid pressure (for example, oil) in the chisel is compressed by the advance of the pressurizing ram 4, and a force corresponding to the punch metal load l1Vc is borne.

At this time, since the pressurizing movable ram is fitted to the cylinder arm of the fluid pressure cylinder independently and is fitted to the operating rotor, first, the punch (14
1 precedes the upset direction [4] In Fig. 4 (c), the thick-walled pipe material (Pl) is first upset-processed,
In Fig. Wi4 (e), the thin-walled pipe material (Pl) is first subjected to upset processing.

That is, in this example, upsetting is performed on the preceding punch in the middle of the full stroke of the punch by the crank-type punch drive unit, and at the end of the full stroke of the punch, the upsetting process is performed as shown in Fig. W2B5 (d) and Fig. 4 (f). As shown, the thin-walled pipe material (P) and the thick-walled pipe material (-) are each upset-processed, and are shown here.

Even if there is a difference in volume, simultaneous forging is possible.

In addition, after completing the upsetting, open the split mold (101) and insert the punch drive device (211 into the fourth
As shown in Figure (y), the fluid pressure cushion mechanism ση may be valved and the bunch u3α4 can be pulled out from the tube housing portion IllQZ.

The W! of the present invention shown in FIG. 5 (1K) (b)! In the 12 Oarashi example, it is applied to so-called 3-piece simultaneous forging, and a 10% mold (24
IIIC molding part! Three pieces of 251B are installed in parallel, and among the 4' bays of the punch μs which can be freely inserted and removed from the molding part, the central punch is attached to the center of the fluid pressure cylinder α mark via the holder aIl'ft. In Figure 1, the upper and lower punch paddles 'cA are respectively stored in the primary cylinder 091 through the holder connector, and are fitted into the cylinder part example (c), and are pressurized movable rams that are independently moved in front of f11. 37+iC
i! ! It has been set up.

When the punch driver II presses forward by 2 mm (211t), the upper and lower punches +2119'34 can advance in the upset direction in advance of the center punch@.

Furthermore, the third embodiment shown in FIG. 6 (b) is similar to the second embodiment described above (although it is for simultaneous forging of three pieces).

A cylinder portion having the cross-sectional area of the cylinder is formed in the fluid pressure cylinder, and a pressurizing movable ram holder that is linked to the central punch is fitted into the cylinder portion, and a cylinder portion having the cross-sectional area of the U pressurizing movable ram throat is fitted. A pressurizing movable ram (2) interlocked with the cylinder 8a (HIHC lower punch t + zt holder package) is fitted to form a maximum diameter fluid cylinder L9 fill that corresponds to the entire punch load of the upper punch M. It is a matter of time to collect.

In the example shown in FIG. 6 fml(bl), when the pressurizing ram moves forward by the punch drive device (211K), the lower punch holder first advances in the upset direction, and then,
The center punch arm independently advances in the upset direction, and the last (upper punch) advances in the upset direction in both the second and third embodiments.

Molding Department (Company) @1271VC equipment and leather material IP) (P
1) (P2) can be forged simultaneously even if there is a difference in volume.

In addition, W15 figure, @65! In J, the common parts are indicated by the common code gold, and α& is the king machine.

The seventh book and drawing shows a regular example by specifically applying the first embodiment of the present invention to the age setter, and in the seventh book and drawing VC,
i61 is base, 6! i is a tong, and both are pivotally connected via a fulcrum horizontal axis Ut- so that they can be opened and closed.

The opening/closing facing surfaces of PACE 15II and tongs t6z have upper and lower goo holders NM and upper and lower upset goo: f41I, respectively.
l+force.

A split mold 161 consisting of upper and lower clamping guides MM, etc. is installed, and in one example, two mold-accommodating molds are installed side by side.

The hook is a pair of grip rods for the left and right grips.

Its upper part is pivotally connected to the tong head via the fulcrum shaft,
The lower part of the B glu rod 'H is pivotally connected to the bed head via the fulcrum shaft, and the grip link MVc is pivotally connected, and the grip drive device is housed as a telescopic sill device in this example. It is attached.

Furthermore, the slide iii f711 on the top surface of the bed 611
c is mounted by controlling the two punches α3 (141 is a punch driving device #I shown as a telescopic cylinder in this example via a fluid pressure cylinder mechanism a71t) according to the first example.

In this case, first, as shown in Fig. 7(a), two materials (Pi (Pl)
) is inserted into the split mold 6D, as shown in Fig. 7 fb), the grip drive device; will be granted.

Therefore, when the punch drive device ff1lffl+ is extended, the fluid pressure cushion mechanism aη is moved along the sliding surface 71 by the steering wheel. I decided to do 1IfJ4 in advance of the pressurizing movable arm, and to install it, I first punched the material (Pl) W! 4 parts will be upset, and then the material (P) will be upset with a fluid pressure sill (1!iVC) using the next punch a1.

In other words, as shown in l@7 (t) and (p), the material IP) (
Even if there is a difference in the volume of P+), upset processing can be performed at the same time. In addition, the material (pl (P+)
It goes without saying that upset processing can be performed even if there is no volume difference.

After completing the upsetting of the head, the punch drive device συ is reduced and the punch is retracted, and then the grip drive device teIt is reduced by 1 in the example, and the ratio mold 611υt is released. Let the product (Pl' (Pl) ° 7th
As shown in the figure (hl), it is taken out via an unillustrated conveyance device. In Figures 8 and 9, the ratio punch 〇4 is attached to the pressurizing movable ram 221.
This is an embodiment of the present invention that moves together with the person, and in the embodiment of this @ Figure 8 and Figure 1g9 mentioned earlier, Figure 10 fa) (
As shown in bl, the punch tI:I Q41 i is moved together in the absent direction, and after completing the shape of the thick product (Ptlli) as shown in Figure 10 (a), the shaping of the thin product P as shown in Figure 10 (bl) is completed. Then [, l1810 figure fcl
(d) Several pieces are forged at the same time in the process shown in IC.

In addition, as shown in Figure 10 (c) and (d) VC, when used for two-step forging, that is, for those that require twice the abstrusion force, the 10 [f
A two-step compaction can be completed as shown by l.

According to the present invention, one or more fluid pressure load hands yi corresponding to the punch load are provided in the fluid pressure cylinder having the maximum diameter corresponding to the punch metal load so as to be operable independently from each other. Therefore, it can be used for simultaneous forging of several UIs, or for those requiring double D forge-setting force.Furthermore, the cylinder part VCIM in the MU cylinder can be forged with the fi body king cylinder VC mounting ratio punch. Next, the ratio punch is attached to the movable pressure ram in advance, and Ab L13 is set in the setting direction. This has the advantage of being able to improve productivity.

Therefore, according to Kibatsu #4, due to the improved fluid pressure cushion mechanism, it is highly effective not only as an absorber for upsetting 114 parts of a long material, but also as an absorber for upsetting oil country tubular goods.

[Brief explanation of the drawing]

Fig. 1 (a) (b), Fig. 2 (W fb), Fig. 5 (ml) (b) is a schematic diagram of an abscenter with a conventional fluid pressure cushion mechanism, Fig. 4 (a) to Fig. 4 ( d) shows the first embodiment of the present invention along with its operation, FIG. 4(1) is a sectional view of the main part, and FIG. 4 fill is a sectional view taken along the line A-A in FIG. 4(a). Figure 1c) (d) and 4 Figure Ie1 (f) #
Fig. 4(f) is an absent state diagram of a material in which one side is thick and the other is thin. FIG. 5(a) is a sectional view of a main part showing a second embodiment of the present invention. Figure 5(a)
Figure WI6 (1) is a cross-sectional view of the main part showing @55 relief of the present invention; It is a C line sectional view,
FIGS. 7 fal to 7 fhl are specific configuration diagrams of the present invention, and FIGS. 7 fa) and 7 fbl are front sectional views and FIG.
) is when the mold is open, Figure 7 (b) is when the mold is closed, and Figure 7 (1c) is when the mold is closed.
) is a cross-sectional view taken along line E-E of Kabuto 7 fb) @ 75! [d)
Hljr 7 (a) DD line sectional view, IM7 figure fe
) to 7 (hl is a cross-sectional view showing the operating condition m along the line D-D, FIG. 8 is a cross-sectional view of the main part showing the basic embodiment of the present invention, and the ninth factor is a cross-sectional view taken along the line FF in FIG. 8) Cross-sectional view, Figure 10 1a)
ibl tci (di Ie' (fl is a cross-sectional view showing an example of its operation process. @ '31...Punch, 071...
・Fluid pressure cushion mechanism, ・Fluid pressure cylinder, ・
・・Pressure ram, t211σ1) ・・Punch drive IIJ device, 昂萬ζη decoy■ ・・・Pressure movable 2 m, (support)) ・・・
Abcenta, 6 tongs, bass, 62...tongs. Patent 田人 Kobe Steel, Ltd. 27 41 5 I71 (b) n M6 Figure and b? 8 2 1ji 4 Figure ('j) 7. No. 8 Gi, , No
, ＼＼＼＼＼゛へ＼ゝ

Claims (1)

[Scope of Claims] 1. A plurality of molding parts are arranged in parallel, and each of the molding parts of the box mold and the face mold can be freely inserted and removed, and the t-bunch and the punch are driven via a fluid pressure cushion mechanism. In the upsetting mechanism t-m, tt, which includes a punch driving device t-, the fluid ratio cushioning mechanism is IIU with a pressurizing ram movably fitted in a maximum radial flow cylinder corresponding to the full punch load; A punch is attached to the B fluid pressure cylinder, and one or more tips corresponding to the load of each punch (
Agesec for simultaneous forging with a double punch, characterized in that movable rams equipped with punches are fitted together so that they can operate independently of each other. 2.vi A mold in which several molding parts are arranged side by side, each of the molding parts of the mold (which can be freely inserted and removed), and a punch drive device that drives the punch by electric power via a fluid pressure cushion mechanism. In the nine upsetters equipped with an upsetting machine mt including an n fluid EE cushion mechanism, a machining ram is fitted with a single movable VC in a maximum diameter fluid pressure cylinder corresponding to the full load in inches, and a zero fluid king cylinder. In addition, one or more pressurizing movable rams each having a punch at the tip capable of supporting the punch load are mounted independently of each other in the maximum radial flow cylinder. The pressurized pre-ram is operably fitted.
C. Upset for simultaneous forging of ll and wood, which is designed to be able to advance in the upsetting direction in advance of the punch.