JPH0761509B2 - Method for shortening mold replacement time and panel set jig used for the method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Purpose of the Invention (1) Field of Industrial Application The present invention relates to a method for reducing the time required for die replacement in a press working line, and directly used for carrying out the method. Panel set jig for doing.

(2) Conventional Technology As shown in FIG. 7 and FIG. 8, a general press processing line for performing press processing in three steps has three press machines M each having a lower mold D ₁ and an upper mold D _{2. 1} , M ₂ and M ₃ are provided, and one of the stacked blanks is sucked by the sheet feeder 01 and supplied to the _first press machine M ₁ , and the pressing machine M ₁ performs drawing. The panel P for which the drawing process has been completed is supplied to the _second press machine M ₂ by the unloader 02 and the loader 03, is trimmed there, and is further supplied to the _third press machine M ₃ by the unloader 04 and the loader 05. The flange P is subjected to flange processing, and the processed panel P is loaded on the pallet 08 by the unloader 06 and the palletizer 07.

On the other hand, when performing the two-step press working that does not require the flange working, as shown in FIG. 9, a third press machine is used.
M ₃ is stopped, the lower die D ₁ attached to the bolster B and the upper die D ₂ attached to the slide S are removed, and the panel set jig Z is attached in place of the lower die D ₁ . Then, the panel P which has been trimmed by the second press machine M ₂ is once placed on the panel setting jig Z by the loader 05, and then transferred to the pallet 08 by the unloader 06 and the palletizer 07. .

(3) Problems to be Solved by the Invention By the way, when the processing of a certain panel P is completed based on the production plan, the dies D ₁ and D ₂ for processing the next panel P are performed.
Will be exchanged. In general the exchange of the mold D _1, D ₂ are used mold exchanging machine, the mold exchanging machine C _1, C _2, each corresponding the provided first pressing machine M ₁ and the second pressing machine M ₂ To be However, the die changer cannot be introduced to the third press machine M ₃ because the bolster B moves laterally (see FIG. 8). In such cases, 2
When performing die exchange to perform three-step machining after the step machining, the first and second press machines M ₁ and M ₂ are the die changers C ₁ and
Although the dies D ₁ and D ₂ can be quickly replaced by C ₂ , the third press machine M ₃ carries in and mounts the dies D ₁ and D ₂ after removing the panel setting jig Z. It takes a long time to complete, and as a whole, the first and second press machines M ₁ and M ₂ have a die changer C.
There was a problem that the effects of introducing ₁ and C ₂ could not be fully exerted.

The present invention has been made in view of the above circumstances, and in a press working line having a press machine that is not in operation, a method for shortening the die replacement time, and a panel set for directly using the method. The purpose is to provide a jig.

B. Configuration of the Invention (1) Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is a step of continuously using a plurality of press machines, in which the plurality of press machines are operated. A method for shortening the time for exchanging molds when there is a press machine that does not operate, wherein the panel set is capable of temporarily supporting the panel carried in and out by the loader and the unloader on the upper die mounting slide of the press machine that is not operating. A jig is detachably provided, and while the panel setting jig is in use, the lower die mounting bolster of the press machine that is not operated is moved, and a die to be used next time is set in advance on this bolster. It is a feature of.

The present invention also provides a panel mounted on the upper die mounting slide of the press machine while the lower die mounting bolster of the press machine that is not operating is moved and the die to be used next time is preset on the bolster. A panel setting jig for temporarily supporting a pair of gate-shaped frames, a panel support that is detachably installed at the lower ends of both frames to support the panel, and is orthogonal to the lower surface of the slide of the press machine. And a support rod that fits inside the T-shaped groove in one direction, and a clamp mechanism that removably fixes the upper end of the frame to a large number of T-shaped grooves formed in the same direction. A positioning plate that engages with the T groove,
A second feature is that the lower surface of the slide is provided with a clamp rod that is releasably press-contacted.

(2) Operation According to the first feature of the present invention having the above-mentioned configuration, the panel set jig is mounted on the upper mold mounting slide in a state where the mold of the press machine that is not in operation is removed. Panels carried in and out by a loader and an unloader are temporarily supported by this panel setting jig. At this time, the lower die mounting bolster of the pressing machine is moved, and a die to be used next time is preset on the upper portion thereof. When the press machine is operated, the panel setting jig is removed from the slide, the bolster is returned to its original position, and the mold set on the bolster is attached to the bolster and the slide.

Further, according to the second feature of the present invention, the support rod of the clamp mechanism provided in the frame in the predetermined T groove formed in the upper die mounting slide with the die of the press machine that is not operating is removed. And the positioning plate are fitted together, and the clamp rod is pressed and fixed to the lower surface of the slide. The panel support is attached to the frame thus attached to the slide, and the panel is supported on the upper portion thereof.

(3) Example An example of the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the present invention.
Figure is the overall side view of the panel setting jig, and Figure 2 is the first.
II direction arrow view of the figure, FIG. 3 is an overall perspective view of the clamp mechanism, FIG. 4 is a sectional view taken along line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along line VV of FIG. FIG. 6 is a sectional view taken along line IV-IV in FIG.

As shown in FIGS. 1 and 2, the panel setting jig Z
Is a slide S for mounting the upper die of the press machine M ₃ that is not operating.
And a pair of front and rear gate-shaped frames 1,1 and a pair of panel supports 2,2 removably installed between the lower ends of the frames 1,1, It is composed of a clamp mechanism 3 for detachably fixing the left and right upper ends of the frames 1, 1 to the slide S. On the lower surface of the slide S, a large number of T-grooves G ₁ and G ₂ for fixing the clamp mechanism 3 of the frame 1, ₁ are formed. The T-groove G ₁ extending in the front-rear direction of the slide S and the T-groove G ₂ extending in the left-right direction have the same cross-sectional shape, and the widths of the portions of the T-grooves G ₁ and G ₂ opening on the lower surface of the slide S are equal to each other. W is formed in a _1, the width in the interior of the slide S is formed to be larger W ₂ than the W ₁ (see FIG. 5).

Said pair of frames 1 have the same structure, respectively two vertical members 1 _1, one of the transverse member 1 ₂ for connecting the lower end to each other, and reinforcement of one connecting the intermediate mutually Element
It consists of 1 ₃ Panel Support 2,2 of the two rod-shaped to be extended between the left and right lower ends of the frame 1, 1 removable by thumb screw 4 from below at both ends is superimposed on the transverse member 1 ₂ of the frame 1, 1 It is freely connected. Positioning members 5 and 6 for supporting the panel P by abutting on the outer periphery of the panel P are provided at the intermediate portions of both panel supports 2 and 2.

As shown in FIG. 3, the clamp mechanism 3 includes the frames 1, 1
Includes a vertical member 1 ₁ of the upper end one side plate of the positioning plate 8 which is fixed through a bracket 7 of the support rods 10 of the rod-shaped which is fixed via a bracket 9 to the opposite side of the positioning plate 8 There is. The support rod 10 of the vertical member 1 ₁
One end of a linear link 12 is rotatably supported by a pin 13 at the lower end of a bracket 11 fixed to the side surface on the same side as the one end of a substantially L-shaped rotating member 14 at its upper end. Is pivoted at pin 15. The other end of the link 12 and the bent portion of the rotating member 14 are pivotally supported on the tip of the lever 18 by a pin 16 and a pin 17, respectively. A supporting rod 19 is screwed into the other end of the rotating member 14 so that the protruding length can be adjusted.
A clamp rod 20 is integrally fixed to the tip thereof.

The thickness of the vertical member 1 ₁ upper portion of the frame 1, 1, the front and rear direction T
The width of the positioning plate 8 is set to be equal to W ₁ so that it can fit in the opening of the groove G ₁ , and the thickness of the positioning plate 8 is a T groove in the left-right direction.
Also set equal to W ₁ so that it fits into the G ₂ opening. Further, the length of the support rod 10 is set to a length intermediate between the width W _{1 of the} opening and the width W ₂ of the inside so that the support rod 10 can be engaged with the inside of the T groove G ₁ . The length is set sufficiently larger than the above W ₁ .

Next, the operation of the embodiment of the present invention having the above-mentioned structure will be described with reference to FIGS.

The third pressing machine M ₃ which is not in operation when the two-step pressing process including the drawing process and the trimming process is being performed.
The mold is removed, and the panel setting jig Z is attached to the slide S. At this time, the bolster B of the third press machine M ₃ is in a laterally moved state (see FIG. 8).

To mount the panel setting jig Z, first, one frame 1 is tilted so that the support rod 10 side is high and the positioning plate 8 side is low, and the support rod 10 is tilted in the front-back T groove.
Insert from below at the intersection of G ₁ and T groove G _{2 in} the left-right direction. Then, the frame 1 is moved in the front-rear direction to move the support rod 10 along the T-groove G ₁ in the front-rear direction to a predetermined position, and then the frame 1 is rotated about the support rod 10 in a vertical posture. . Thus, the upper end of the vertical member 1 ₁ is thereby engaged with the opening of the T groove G ₁ in the longitudinal direction, positioning plate 8 is engaged in the lateral direction of the T-shaped groove G _2. When the lever 18 is pulled down from the chain line position to the solid line position in FIG. 4 from this state, the rotating member 14 rotates from the chain line position to the solid line position, and the clamp rod 20 thereof contacts the lower surface of the slide S. At this time, the link 12 connected to the lever 18 swings toward the bracket 11 beyond the dead point, so that the rotating member 14 is stably held at the position indicated by the solid line. When the clamp rod 20 comes into contact with the lower surface of the slide S in this way, the vertical member 11 of the frame ₁ is pulled down by the reaction force, and the longitudinal T
The step portion of the groove G ₁ is clamped by the support rod 10 and the clamp rod 20 in the vertical direction.

When one frame 1 is fixed to a predetermined position of the slide S as described above, the other frame 1 and the frame 1 are also fixed to the slide S by the same procedure, and two frames 1 and 1 are fixed between the lower ends of the two frames 1 and 1. By mounting the panel supports 2 and 2 and fixing them with the thumbscrews 4, the mounting of the panel setting jig Z is completed.
The panel P trimmed by the second press machine M ₂ is temporarily placed between the positioning members 5 and 6 provided on the panel support 2 of the panel setting jig Z, and then the pallet. Emitted in 08.

When the two-step press working is performed as described above, the bolster B of the third press machine M ₃ is pulled out to the side, and the die D used for the next three-step press working is provided above the bolster B. ₁ and D ₂ are preset. When the two-step press working is completed, the panel setting jig Z is removed from the slide S in the reverse order of the above, the bolster B is returned to its original position, and the upper die D ₂ is mounted on the slide S. to complete the exchange of the mold of the press machine M _3. In this way, by setting the molds D ₁ and D ₂ to be used next time on the bolster B in advance, the first and _second mold exchanging machines C ₁ and C ₂ are provided.
It is possible to complete the exchange of the dies D ₁ and D ₂ without delaying the press machines M ₁ and M ₂ .

On the other hand, in the conventional type shown in FIGS. 7 to 9,
When performing the two-step press work, it is necessary to place the bolster B on the stopped third press machine M ₃ to support the panel setting jig Z, so the two-step press work is completed. Then, pull out the bolster B from the position of the press machine M ₃ to the horizontal position, remove the panel setting jig Z, place the lower mold D ₁ and the upper mold D ₂ on the bolster B, and position the press machine M ₃ . Must be returned to. Therefore, as compared with the present embodiment, extra time is required to pull out the bolster B from the position of the pressing machine M ₃ to the lateral position and time to place the lower die D ₁ and the upper die D ₂ on the bolster B. , The exchange time of the molds D ₁ and D ₂ becomes long.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made without departing from the present invention described in the claims. It is possible.

For example, in the embodiment, each frame 1, 1 has a pair of left and right vertical members 1
₁ , 1 ₁ are each provided with a clamp mechanism 3. For example, the right vertical member 1 ₁ of one frame 1 and the other frame 1
Only wearing the clamp mechanism 3 described above in the vertical member 1 ₁ of the left, it is also possible that the longitudinal parts ₁ of the other two is omitted clamp rod 20 by mounting the supporting rod 10 only positioning plate 8 is there.

C. Effects of the Invention As described above, according to the method for shortening the mold replacement time of the present invention, it is possible to realize a press machine that does not operate a panel set jig that can temporarily support the panels loaded and unloaded by the loader and the unloader. Provided on the upper mold mounting slide detachably,
Since it is possible to move the lower die mounting bolster of the press machine while using this panel setting jig and set the lower die to be used next time in advance on this bolster,
A lower mold mounting bolster is placed at the position of the press machine that is not operating, and a panel set jig is supported on the lower mold mounting bolster. The mounting can be completed in a short time.

Further, the panel setting jig of the present invention includes a panel support capable of supporting a panel, a frame for holding the panel support at the lower end, and a clamp for detachably mounting the upper end of the frame on a slide of a non-operating press machine. Since the clamp mechanism is provided with a support rod and a positioning plate that can be engaged with the T groove of the slide and a clamp rod that is press-contacted to the lower surface of the slide in a detachable manner, The tool can be attached / detached to / from a predetermined position of the slide in a short time, and there is no possibility that the panel setting jig will be displaced.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention.
Figure is the overall side view of the panel setting jig, and Figure 2 is the first.
II direction arrow view of the figure, FIG. 3 is an overall perspective view of the clamp mechanism, FIG. 4 is a sectional view taken along line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along line VV of FIG. 6 is a sectional view taken along line VI-VI of FIG. 4,
FIG. 7 is a side view showing a conventional three-step press line, FIG. 8 is a plan view of the same, and FIG. 9 is a plan view showing a conventional two-step press line. 05 …… loader, 06 …… unloader, 1 …… frame, 2
…… Panel support, 3 …… Clamp mechanism, 8 …… Positioning plate, 10 …… Support rod, 20 …… Clamp rod, B …… Bolster, D ₁ , D ₂ …… Mold, G ₁ , G ₂ …… … T-slot, M ₁ , M
₂ , M ₃ …… Press machine, P …… Panel, S …… Slide

Claims (2)

[Claims] In 1. A plurality of press _{(M 1, M 2, M} 3) a step of continuously using, not running on the plurality of press _{(M 1, M 2, M} 3) A method for shortening the die replacement time when there is a press machine (M ₃ ), wherein a loader (05) and an unloader (06) are installed on the upper die mounting slide (S) of the non-operating press machine (M ₂ ). ), A panel set jig (Z) capable of temporarily supporting the panel (P) carried in and out by means of (3) is detachably provided, and the press machine (M ₃ ) not operated during the use of the panel set jig (Z). A method for shortening the die replacement time, characterized in that the lower die mounting bolster (B) is moved and the die (D ₁ , D ₂ ) to be used next is set in advance on this bolster (B). . 2. A lower die mounting bolster (B) for a press machine (M ₃ ) which is not in operation is moved and a die (D ₁ , D ₂ ) to be used next time is preset on the bolster (B). The panel setting jig is mounted on the upper mold mounting slide (S) of the press machine (M ₃ ) to temporarily support the panel (P) while ), A panel support (2, 2) removably installed on the lower ends of both frames (1, 1) to support the panel (P), and a lower surface of the slide (S) of the press machine (M ₃ ). A large number of Ts formed in directions orthogonal to each other
The clamp mechanism (3) is configured to detachably fix the upper end of the frame (1,1) to the groove (G ₁ , G ₂ ), and the clamp mechanism (3) is the one-direction T groove (G ₁ ). Support rod (10) fitted inside, the positioning plate (8) engaging with the T groove (G ₂ ) in the other direction, and the clamp that is detachably press-contacted with the lower surface of the slide (S). A panel setting jig comprising a rod (20).