JPS607863Y2 - press mold - Google Patents

Description

[Detailed Description of the Invention] The disclosed technology belongs to a technology that facilitates fine adjustment work when setting a press mold that has been processed and adjusted to match a press machine for trial punching during mold manufacturing into a press machine for product processing.

Therefore, this invention relates to a press mold in which the upper surface of the upper mold is attached to the lower surface of the press ram, and in particular, the upper surface of the upper mold has a certain height on the mounting plane to the press ram. The present invention relates to a press mold that can be attached with a spacer having a large size and a height adjustment shim.

Generally, in the process of manufacturing a press mold, a press machine for trial punching is used to adjust the product forming surfaces of the upper mold and lower mold, and when actually processing the product, the above-mentioned trial press machine is used. The press die is often set in a press machine different from the press machine used for punching.

However, with press machines for trial punching and product processing,
The characteristics such as the parallelism, load capacity, or load application point between the bolster and the press ram are often different.In particular, press machines for product processing mold many types of products and are used frequently, so the above characteristics may differ. Differences are likely to occur.

Therefore, when setting a press mold adjusted in a press machine for trial punching into a press machine for product processing, there are very few cases in which molding can be performed without adjustment.1. In many cases, fine adjustments are made using the product processing machine again.

However, in the conventional fine-tuning work, in order to match the press mold to the characteristics of the press machine for product processing, the product forming surfaces of the upper and lower molds are processed and polished using a grindstone by a grinder to adjust the slit alignment. This required a lot of man-hours.

The purpose of this invention is to eliminate the above drawbacks and simplify the adjustment work by attaching spacers and height adjustment shims to the upper die, in view of the problems in the adjustment work of conventional press dies. The purpose is to provide an excellent press mold that can be used in various ways.

The structure of this invention in line with the above purpose is that when setting a press die that has been finished adjusted in a press machine for trial punching into a press machine for product processing, it is necessary to correct errors in parallelism due to differences in the characteristics of the two press machines. The gist is that this can be done simply by attaching a spacer and a height adjustment shim to the upper surface of the upper die and fixing it to the press ram.

Next, an embodiment of this invention will be described below based on the drawings.

Figures 1 and 2 show a part of the press ram attachment part of the upper die of the press die according to this invention in longitudinal sectional view, and Figure 3 shows the press die set in a press machine for trial punching. FIG. 4 is a front view showing the state in which it is set in a press machine for product processing.

Reference numeral 1 in the figure is the press mold according to this invention, and the upper mold 1
a and a lower mold 1b are combined via a product molding surface IC.

A mounting plane 2 is formed on the upper surface of the upper mold 1a, and a plurality of recesses 3 are formed in the mounting plane 2.
A female thread 4 is formed at the bottom thereof.

A spacer 5 having a certain height dimension can be fixed to this recess 3 with a bolt 6, and a height adjustment shim 7 can be selected and interposed as necessary on the lower surface of the spacer 5. It is now possible to do so.

The press mold 1 having the above structure is set in a press machine I for trial punching shown in FIG. 3, and the finish is adjusted.

At this time, the lower mold 1b is fixed on the bolster 8, and the mounting plane 2 of the upper mold 1a is fixed on the lower surface of the press ram 9.

When attaching the upper mold 1a to the press ram 9, a height adjusting shim 7 is interposed on the lower surface of the spacer 5 to match the height of the upper surface of the spacer 5 and the mounting plane 2, or the upper surface of the spacer 5 is The mounting plane 2 is processed using the position as a reference, and the upper surface of the spacer 5 and the mounting plane 2 are fixed to the press ram 9 with the same plane in advance.

Then, the press die 1, which was set in the press machine I for trial punching and subjected to finish adjustment of the product processed surface IC, was transferred from the press die manufacturing factory to the press factory, and was made as shown in Fig. 2. It is set in a press machine ■ for product processing.

For example, if the parallelism of the bolster 10 and the press ram 11 is different as shown in FIG. 4 due to the difference in characteristics between the press machine (■) for product processing and the press machine (I) for trial punching, as shown in FIG. When the press mold 1 is fixed on the bolster 10 and the press ram 11 is aligned on the mounting plane 2 of the upper mold 1a, a gap is created between the mounting plane 2 and the press ram 11 due to the difference in parallelism.

Therefore, measure the dimension δ of the gap at the mounting position of the spacer 5, raise the press ram 11, select the height adjustment shim 7 corresponding to the gap dimension δ, and insert it on the lower surface of the spacer 5. 5 is made to protrude by a dimension δ above the mounting plane 2 of the upper die 1a.

After that, the press ram 11 is lowered again, and the press ram 11
The spacer 5 and the mounting plane 2 are brought into contact with and fixed to the lower end of the holder.

As a result, the error in the parallelism of the press rams of the press machine I for trial punching and the press machine II for product processing is corrected, and the upper die 1a and the lower die 1b are set under the best combination conditions.

Also, instead of protruding from the mounting plane 2 of the upper die 1a, the spacer 5 is protruded by the height adjustment shim 7 as described above.
The reference plane of the cutting machine is set based on the upper surface of the upper die 1a from which the spacer 5 has been removed.
By re-cutting, the mounting plane 2 can be directly fixed to the lower surface of the press ram 11.

In addition, the press mold 1 with the mounting plane 2 re-cut in this way
When setting it again in the original press machine (2) for trial punching, the best setting position can be ensured by reattaching the spacer 5 that has been optimally adjusted as described above.

Note that the aspect of this invention is not limited to the above-described embodiment; for example, the recess 3 formed on the upper surface of the upper mold 1a may be a counterbore hole, or a notch may be provided on the upper surface of the upper mold from the side. good.

As mentioned above, according to this invention, by providing a recess on the mounting surface of the upper die to the press ram and attaching the spacer and height adjustment shim, the characteristics of the press machine for trial punching and product processing are improved. It is possible to reliably correct errors caused by differences in the size of the product, and adjustment work when setting the product into a press machine for product processing can be performed extremely easily without the need for cutting or polishing.

Further, by removing the spacer, there is an effect that the original best fitting state can be reproduced even when the press mold is set again in the original press machine for trial punching.

[Brief explanation of drawings]

The drawings show an embodiment of this invention, and FIGS. 1 and 2 are longitudinal sectional views showing a part of the upper surface of the upper die, FIG. 3 is a front view of a press machine for trial punching, and FIG. The figure is a front view of a press machine for product processing. 1c...Product molding surface, 1b...Lower mold,
1a...Upper die, 9...Press ram, 2
...Mounting plane, 3...Recess, 5...Spacer, 6...Bolt, 7...Height adjustment shim.

Claims (1)

[Scope of utility model registration request] In a press mold in which a plane for attaching to a press ram is formed on the upper surface of an upper die that is combined with a lower die via a product forming surface, a plurality of recesses are formed in the plane for attaching to the press ram, and the recesses A press type, characterized in that a spacer having a constant height dimension is attached to the spacer by screws, and a height adjustment shim is interposed on the lower surface of the spacer as necessary. .