JPH05177399A - Dividing structure of upper frame in large press - Google Patents

Abstract

PURPOSE:To reduce the time for assembly work of an upper frame and to attain improvement in safety by assembling the upper frame in such a manner that a crown supporting frame is arranged on an upright and a dividing crown is arranged on top of it. CONSTITUTION:On beds 21, 22 that are provided side by side to support a lower die, three left and right pairs of the uprights 31RL-33RL are provided and the upper frame 40 is supported on them. The upper frame 40 is constituted of two left and right pairs of crown supporting frames 41RL-42RL, which are divided at the position corresponding to the upright 32RL and bridged between the uprights 31R-33R and between the uprights 31L-33L in the direction of a press line P, and a plural number of crowns 61-64 each with a built-in slide driving device that is bridged in the shape of parallel crosses between the left and right crown supporting frames 41RL, 42RL. Thus, this structure facilitates to transport a large press frame by dividing it in a plural number of blocks, and also the assembly work is carried out safely and in a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a divided structure of an upper frame including a crown in a large press having a plurality of slides such as a transfer press.

[0002]

2. Description of the Related Art While a press machine has become large in size, it has to be divided into a plurality of blocks in order to clear transportation restrictions under the Road Traffic Act or the like when the press machine is transported from a manufacturing plant to an installation site. As an example of this divided press device, there is, for example, Japanese Patent Publication No. 1-52120, which has at least three crowns on a lower frame 1 in which _three beds 11 to ₁₃ are arranged side by side. 2 _1-2
The upper frame 2 in which ₃ are installed side by side, the 4 uprights 3 ₁
3 to ₄ are connected and supported by the connecting frame 3.

[0003]

However, the three crowns 2 ₁ to 2 ₃ constituting the upper frame 2 are not divided for each of the crowns 2 ₁ to 2 ₃ , and the upstream side is the first aplite 3 _1. The first crown frame 4 ₁ supported by the first crown 2 ₁ to accommodate the drive unit 5 of the first crown 2 ₁ and the upstream side supported by the second upright 3 ₂ to accommodate the upstream drive unit 6 a of the second crown 2 ₂ . 2 crown frame 4 ₂
And the second crown 22 supported by the third upright 3 _3.
Fourth crowns and downstream drive portion 6b and the third crown frame 4 ₃ accommodating the upstream drive portion 7a of the third crown 2 ₃ is disposed between the third upright 3 ₃ of the 4 uprights 3 ₄ Frame 4 ₄ and 4th upright on the downstream side
₄ are sequentially arranged from the upstream side and the fifth crown frame 4 ₅ accommodating the downstream drive portion 7b of the third crown 2 ₃ is supported by the crown cover to cover the top portion of the crown frame 4 _{1-4 5} It consists of 4 ₆ and.

Therefore, the assembly of this press frame
The procedure is as shown in FIG.₁~ 1₃To
Upright 3₁~ 3_FourShown in Fig. 5 (b) after installing
As you can see, bed 1₂1₃Slide support jack on top
Slide 8 through 11₁~ 8₃Installed, and
Crown 2 via unsupported jack 12₁~ 2₃Each of
Crown frame 4₁~ 4_FiveTo place. And the club
Eun support jack 12 for crown frame 4₁~ 4
_FiveAfter adjusting the height of the crown frame 4₁~ 4_Fivesame
Sword, crown frame 4₁~ 4_FiveAnd upright 3₁~ 3
_FourAnd are connected. Further, as shown in FIG.
After removing the round support jack 12, slide support
Slide 8 with jack 11₁~ 8₃Adjust the height of
And crown 2₁~ 2₃Drive units 5, 6a, 6b, 7
Working rod 9 extending from a and 7b₁~ 9 ₃Slide 8
₁~ 8₃Was assembled by connecting.

Therefore, at the time of assembly, the slides 8 ₁
8 ₃ and crown frame ₄₁ to ₅ jack 1
Since the assembling work is carried out while being supported by Nos. 1 and 12, it is extremely dangerous and requires a long time for assembling.

The present invention solves the above problems and divides a large press frame into blocks of a size that can be transported, and further, a structure for dividing an upper frame in a large press that allows safe and short-time assembly work. The purpose is to provide.

[0007]

In order to solve the above problems, the upper frame in the large-sized press of the present invention is supported on a plurality of beds arranged in parallel through a plurality of uprights, and a plurality of slides can be moved up and down. The upper frame of the large press in which the crown to be held is placed on the left and right sides, and the left and right crown support frames are hung between the uprights in the bed arrangement direction and divided at the corresponding positions of the uprights. A plurality of divided crowns, which are slid between the left and right crown support frames and have a built-in slide drive device, are configured in a cross beam shape.

[0008]

According to the above construction, after the bed and the aplite are installed, the crown supporting frame is arranged on the aplite, and the divided crowns are arranged in a cross girder pattern between the left and right crown supporting frames. A large press can be assembled by connecting and fixing, and further disposing a slide supported by a jack between the uprights and attaching it to a rod hanging from a press driving device of the slide and the split crown. Therefore, it is not necessary to support the crown through the jack as in the conventional case, and by maintaining the dimensional accuracy of the upright, the crown support frame and the split crown within a predetermined range, it is not necessary to adjust the assembly position of the crown by the jack. Assembling work time can be shortened and safety can be improved, and the division into blocks required during transportation can be achieved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the transfer press according to the present invention will be described below with reference to FIGS.

This transfer press includes two beds 21 and 22 for supporting a lower mold via a mold changing carriage.
And a pair three sets of uprights 31 _RL ~ 33 _RL, which is erected on the bed 21, the uprights 31 _RL
The upper frame 40 supported by ~ 33 _RL is hung between the aprites 31 _R ~ 33 _R and the aplites 31 _L ~ 33 _L in the press line P direction and divided at the corresponding positions of the aplite 32 _RL . Crown support frames 41 _RL and 42 _RL and left and right crown support frames 4
A plurality of divided crowns 61 to 6 each of which has a slide drive device 51 built in between 1 _RL and 42 _{RL in a} cross beam shape.
It is composed of 4 and. These beds 21 and 22, uprights 31 _{RL to} 33 _RL , crown support frames 41 _RL and 4
The 2 _RL and the divided crowns 61 to 64 are formed with high dimensional accuracy of the joints assembled with other members, respectively.
They are fastened to each other by tie rods 71 and 72.

As shown in FIG. 2, the divided crown 61 is formed.
One end has a press drive source (not shown) at the center of
Drive shafts 80 connected to the press line P are provided along the press line P, and the divided drive shafts 80 ₁ to 80 _{4 which} are provided on the respective divided crowns 61 to 64 and constitute the drive shaft 80 are connected via a coupling 81. It is connected. The slide driving device 51 is driven to the drive shaft 80 is divided drive shaft 80 ₁
Drive gears 52 provided in ˜80 ₄ , two passive gears 53 meshed with the drive gears 52, a connecting rod 54 provided on both the passive gears 53 via a crankshaft, and an upper end connected to the connecting rod 54. And a connecting rod 56 that hangs downward via a guide 55, and all the members are provided on the divided crowns 61 to 64. The connecting rod 56 is a slide 91 for mounting the upper die.
It is configured to be connected to the upper surface of 92.

Next, the procedure for assembling the transfer press having the above construction will be described with reference to FIGS. (1) Upright 3 on the installed beds 21 and 22
Install 1 _{RL to} 33 _RL . [FIG. 3A] (2) The crown support frames 41 _RL and 42 _RL are installed between the left and right uprights 31 _{RL to} 33 _RL , respectively. [FIG. 3 (b)] (3) Place the split crown 61 to 64 in the crown support frame 41 _RL, 42 _RL on a predetermined position, the crown support frame 41 _RL, 42 _RL and split crown 61 to 64 and the tie rod 71 While tightening and fastening, the split crowns 61 to 64, the crown support frames 41 _RL , 42
_RL , Upright 31 _RL- 33 _RL and beds 21, 22
Are fastened and fastened with the tie rod 72. [Fig. 3
(C)] (4) The slides 91 and 92 are mounted on the mold exchanging carts 93 and 94 via the support jacks 95, and the mold exchanging cart 9 is mounted.
Bed 3, 2 from the upright 31 _{R to} 33 _R
The support rods 95 are placed on the rails 1, 22, and the support jacks 95 are adjusted to connect the connecting rods 56 hung from the respective divided crowns 61 to 64 to the slides 91, 92. [FIG. 3D] Further, the split drive shafts 80 ₁ to 80 ₄ of the split crowns 61 to 64 are connected by a coupling 81.

[0013]

As described above, according to the present invention, after the bed and the upright are installed, the crown supporting frame is arranged on the abrite, and the divided crowns are arranged between the left and right crown supporting frames in a cross beam shape for positioning. After that, the large press can be assembled by connecting and fixing these, and further disposing the slide supported by the jack between the uprights and attaching it to the rod hung from the press drive device of the slide and the split crown. Therefore, it is not necessary to support the crown through the jack as in the conventional case, and by maintaining the dimensional accuracy of the upright, the crown support frame and the split crown within a predetermined range, it is not necessary to adjust the assembly position of the crown by the jack. Assembling work time can be shortened and safety can be improved, and the division into blocks required during transportation can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a frame structure of a transfer press according to the present invention.

FIG. 2 is a perspective view showing a slide drive unit of the transfer press.

3A to 3D are side views illustrating a frame assembling process of the transfer press.

FIG. 4 is a side view showing a frame structure of a conventional transfer press.

5A to 5C are side views illustrating a frame assembly process of a conventional transfer press.

[Explanation of symbols]

21,22 Bed 31 _RL ~ 33 _RL Upright 40 Upper frame 41 _RL , 42 _RL Crown support frame 51 Slide drive device 56 Connecting rod 61 ~ 64 Split crown 71,72 Tie rod 80 Drive shaft 80 ₁ ~ 80 ₄ Split drive shaft 91, 92 Slide P Press Line

Claims (1)

[Claims] 1. An upper frame of a large press in which a crown for supporting a plurality of slides supported by a plurality of uprights is arranged on a plurality of beds arranged side by side, the upper frames of the large presses being erected on both left and right sides respectively. Left and right crown support frames that are bridged between the uprights in the bed arrangement direction and are divided at the corresponding positions of the uprights, and a plurality of split crowns that are bridged between these left and right crown support frames and that have a built-in slide drive device. The upper frame division structure in a large-sized press, which is characterized in that it is configured like a cross beam.