JPS6243631Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mold for simplifying the work of removing burrs cut out from a product during hot forging.

The burr A cut out during hot forging is left on the cutter die 1 as shown in FIG. 1, and this burr A is carried out using a manipulator when the press, that is, the die 2 is raised. Therefore, in the past, it was necessary to install a manipulator for loading the product and a manipulator for removing the burr, which had the disadvantage of increasing equipment costs and lengthening the work cycle time.

In order to eliminate the drawbacks of the conventional equipment mentioned above, this invention has a stepped convex part on the lower side of the press mold that presses the burr tightly at the bottom dead center of the press, and is also directly connected to the cylinder on the side of the press body where the press mold is fixed. The invention is characterized in that a burr removal plate is provided to allow burrs that have risen with the press die to fall onto a manipulator for charging the product. I will explain.

FIG. 2 is a partial cross-sectional view of the structure of the mold of this invention, viewed from the front.
A step protrusion 3 is formed on the lower side of the tool die 1, and the inner end of the burr A is formed between the step protrusion 3 and the upper inner end surface of the cutter die 1 at the bottom dead center of the press. Pressure is applied,
Burr A very small amount (for example, 0.3 to 0.5 mm) on the stepped convex part 3
It is designed to be embedded. Therefore, when the press die 2 rises, the burr A is lifted up to the top dead center of the press while being in close contact with the stepped convex portion 3. Here, the forged product is carried out and the next product is charged, but a receiving tray is provided on the manipulator (not shown) for charging the product.
When the product is loaded, the burr A is dropped onto the receiving tray, and the burr A is carried out by the return operation of the product charging manipulator.

FIG. 3 is a vertical cross-sectional side view showing a state in which a burr removal plate 5 is provided on a press body 4 to which a pressing die 2 is attached and fixed. The burr removal plate 5 is attached to a pin 8 at the end of a rod 7 of a hydraulic cylinder 6 fitted in the press body 4.
The hydraulic cylinder 6 is attached to the press die 2 so that it can move up and down while maintaining a horizontal position. The burr A, which has risen in contact with the press die 2, is pushed down by the burr removal plate 5 which descends when the rod 7 of the hydraulic cylinder 6 is sent out.
The product is then peeled off the product tray and falls onto the product loading manipulator as previously described.

FIG. 4 is a sectional view showing the relationship between the hydraulic cylinder 6 and the press body 4, and also shows the relationship between the hydraulic cylinder 6 and the press body 4.
As shown in FIG.
It is fixed by related structures such as clamp hardware 12.

In addition, when implementing this invention, the relative structure of the press die and cutter die that adapts to the shape of the target product will determine the formation location of the stepped convex portion 3, the size of the burr removal plate 5, the installation location of the hydraulic cylinder 6, etc. will be taken into consideration.

As described above, according to this invention, the cut-out burr is pressed by the step convex part formed on the lower side of the die, is brought into close contact with this part, and is lifted by the rise of the die. Therefore, the conventional process of removing burrs before loading the next product is omitted, and a burr drop plate is provided on the press body side to drop the lifted burrs, so that the burrs can be removed from the top of the manipulator for loading products. Since the burr can be dropped onto the machine to support it and be carried out using the return process of the manipulator, there is no need for a dedicated manipulator for the purpose of carrying out the burr, resulting in a reduction in machining cycle time. This makes it possible to reduce equipment costs and achieve more efficient automation of work.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view showing the state during conventional deburring, Fig. 2 is a partial sectional view seen from the front illustrating the shape of the mold and the state during deburring according to this invention, and Fig. 3 is the deburring state. FIG. 4 is a vertical side view showing an example of how the plate is attached, and FIG. 4 is a cross-sectional view taken from FIG. 3. 1 is a cutter die, 2 is a press die, 3 is a stepped convex portion, 4 is a press body, 5 is a burr removing plate, and 6 is a hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] A burr in hot forging is made by providing a stepped convex part on the lower side of the die to press the burr into contact at the bottom dead center of the press, and further installing a burr removal plate via a hydraulic cylinder on the press body side to which the die is fixed. Cutting die.