JPS5818971Y2 - Press machine mold and base - Google Patents

Description

[Detailed description of the invention] This application uses the press shown in Figs. 1 and 2 to press a processed plate into a mold and punch through holes, and to place the processed plate on the mold and press it along the mold. In the pressing process to deform the plate and the edge cutting process to cut the edge of the processed plate along a specified line,
This invention relates to a base plate and a mold structure when supporting a mold via a base plate when the mold is placed on a table.

In the above-mentioned press processing, conventionally, a third
A base plate 2 having a flat upper surface as shown in FIG.
2 is used as a pillow, these are arranged in a parallel state, and a mold 3 with a flat bottom surface is placed above it, and the upper surface of the mold and the table are inserted into a dovetail groove 4, and a mounting bolt 5 and a clamp are installed. 6. The processing plate 7, which is clamped and fixed via the underframe 6 and placed on the upper surface of the female die 3, is punched out using the male die 9.

In the above-mentioned base plate and mold structure, the impact force applied during the punching process is transmitted to the base plate through the die, and the base plates 2, 2, which are flat on both the upper and lower surfaces and are sandwiched between the mold and the table surface. gradually displaces and comes to support the entire mold 3 out of its normal position as shown by solid lines 2' and 2' in the figure.

In this way, the sliding connections at points a, l) and c are based on base plates 2' and 2.
It does not interfere with machining because it falls into the empty space between ', but when punching at locations d, d, e, and e, the base plate is displaced at the lower side. As shown in FIG. 5, the sliding fitting 10 accumulates in the punched hole 11 provided in the mold and becomes clogged, preventing the male mold 9 from descending and damaging the cutting edge as well as damaging the lower layer. The slipping gets stuck in the gap between the bottom surface of the mold 3 and the top surface of the base plate 2', pushing up the mold itself, and due to the impact force, the edge of the punched hole in the base plate finally closes. Cracking often occurs.

Furthermore, as shown in FIGS. 3 and 4, when the base plate is displaced to an abnormal position, for example, when punching at location a, the punching hole is located at an intermediate position between the two base plates, and the supporting surface acts effectively. However, there is no problem with the punching process, but when punching out the C part, the support surface of the base plate moves away and the light spreads, so the base plate is pressurized downward to some extent and there is a slight displacement. , the male mold will be damaged and the external processing will not be done completely.

In pressing mold processing, the workpiece is shaped into irregular shapes with different heights, and in edge cutting processing, the base plate moves away from the mold support surface. In areas with little support, the cutting line will not be straight, and the edge will be irregularly curved.

In view of the above-mentioned defects, the present invention combines the mold and the base plate with serrated grooves to prevent the base plate from rising and displacing due to impact force during punching or other press processing. The gist of the examples will be explained below.

That is, in FIGS. 6 to 12, the bolts 5 inserted into the dovetail grooves 4 of the table 1 are attached to both upper surfaces of the base plate 2 placed on the table, the mold 3 above it, and the base frame 8. It is fixed on the table 1 by tightening it through the clamp 6 passed to the table 1.

The base plate 2 is a long block, and as shown in the figure, the mold 3
Two clamps 6 are disposed parallel to the lower side, and the above-mentioned clamps 6 are disposed in the longitudinal outward direction, and the upper side of both ends can be integrally tightened with the mold using bolts 5. .

As shown in the enlarged views of FIGS. 6 to 8, the base plate 2 is provided with a barrier wall 16 having a height h in the longitudinal direction of its outer length, and its upper surface 12
Serrated recesses 15, 15 having slopes 13 and 14 having an inclination angle θ and the same ψ are provided in the longitudinal direction, and the mold 3 is placed on the upper surface 12.

As shown in FIGS. 9 and 10, the mold 3 has serrated protrusions 19 and 19 on both longitudinal sides of the lower surface having slopes 17 and 18 of the same inclination so as to properly match the recesses 15 of the base plate 2. An underframe having the same height as the upper surface of the table 1 and placed on the two base plates 2, 2 disposed at predetermined positions on the table 1, and disposed on the upper surface of the base plate in the longitudinal outward direction of the base plate. The table 1 is inserted into the dovetail groove 4 of the table 1 through a clamp extending over the upper surfaces of the table 1 and fixed by tightening with a bolt 5.

Reference numeral 7 denotes a processing plate, which is mounted on the mold 3.

In the case of improvement, the slope 13 had a serrated surface shape with an inclination angle θ smaller than the slope angle ψ of the slope 14, and the slope 13 was made gentler than the slope 14. can easily escape along this slope 13, and inward displacement is prevented by the steep slope 14.

The present invention has the following effects (1) Serrated recesses 15, 15 are provided on the upper surface of the base plates 2, 2 arranged parallel to the lower side of the mold 3, and the bottom of the mold 3 itself is Convex portions 19.19 having slopes that properly match the concave portions are provided on both sides, and the concave portions 15.15 and convex portions 19.19 are properly fitted and placed and fixed. Therefore, even if there is vibration due to impact during punching, the mold 3 and the base plate 2 will never separate, and the base plate 2 will always remain in a constant parallel position on the lower side of the mold 3. As shown in Figures 3 and 4 above,
There is no possibility that the slide fittings 10 will accumulate on the top surface of the base plate and become clogged.

Therefore, all the slides punched by the male die 9 fall into the space 20 between the two tongue plates, and even when this is done by pressing and edge cutting, the base plate always maintains its normal position.
There is an effect that the processing is performed properly and sharply.

(2) The serrated recesses 15, 15 of the base plate 2 and the same serrated protrusions 19, 19 of the mold 3 are overlapped and integrated, and the mounting is fixed on the table 1 with the bolts 5,
The impact force due to the punching process is quite large, and this is transmitted to the sawtooth fitting part, but the slight displacement caused by the vibration is absorbed by the slip between the sawtooth slope part 13 and the sawtooth slope part 17, and after the impact is resolved, the above mounting Since the tightening of the bolt 5 returns to the original fitted state by the force and the slope, defects such as damage or loosening of the bolt do not occur during installation as in the conventional method.

[Brief explanation of drawings]

Figure 1 is a front view of the press machine with the base plate of this device and a mold attached, Figure 2 is a side view of the same, and Figure 3 is a conventional base plate with a flat top surface, and this is displaced. Figure 4 is a front view of the relationship between the mold and the mold, Figure 5 is a front sectional view of the above case in which the punching hole is clogged with the sliding fitting, and Figure 6 is the front view of the mold of the present invention. Figure 7 is a side view of the same, Figure 8 is a sectional view of the same side, Figure 9 is a front view of the mold of the present invention, Figure 10 is a side view of the same,
FIG. 11 is a front sectional view taken along line AA when the base plate and mold of the present invention are mounted on a table, and FIG. 12 is a side sectional view taken along line BB. Explanation of symbols 1...Table, 2...
Base plate, 3...Mold, 4...Dovetail groove, 5.
...Mounting with bolts, 6...Clamps, 7
...Processed plate, 8...Underframe, 9...
... Male mold, 10 ... Sliding, 11 ... Punching hole, 12 ... Top surface, 13.14 ...
slope, 15... recess, 16... barrier,
17.18...Slope, 19...Protrusion,
20... Blank space.

Claims (1)

[Scope of utility model registration request] A mold 3 is placed on the upper surface of the base plates 2, 2 arranged parallel to each other on the table 1, and in a press machine that processes the processing plate 7 on the mold 3, the base plates 2, 2 are Inclination angle θ in the longitudinal direction of the top surface, same ψ
Serrated recesses 15 and 15 are provided on the slopes 13 and 14, and saw-toothed convex portions 19.19 having slopes 17.18 having the same inclination as the saw-toothed recesses 15 and 15 are provided on the base plate on both sides of the lower surface. A mold 3 provided in the longitudinal direction is fitted and placed, two parallel dovetail grooves 4.4 are provided on the top surface of the table 1, and the head is placed in the dovetail groove 4.
, 4 are used to secure the base plate 2, 2 and the mold 3 to the table 1 by tightening the clamps 6, which are passed over the upper surface of both the front and rear ends of the mold 3, to the table 1. The mold and base of the press machine.