JPH0484636A - Press forming method by turn table - Google Patents

Abstract

PURPOSE:To improve the investment efficiency of a device and to allow mass production by charging materials into the dies of a turn table, rotating the turn table by one pitch each and successively pressing and forming the materials by means of punches, etc. CONSTITUTION:The turn table 4 is disposed between a press slide 2 and a head 3 of the press forming device 1. The dies 5 or die holders of the integer times the required number of the pressing stages are disposed in the peripheral part of the turn table 4. and material charging parts 9 and molding taking out parts 10 of integer times are provided in the side parts. The material 11 or the dies charged the material from the material charging parts 9 are charged into the dies 5 or the die holders and the turn table 4 is rotated by one pitch each and the materials 11 are successively formed to molded goods 12 by the punch 7 etc., provided the press forming device 1. The press forming is executed with the good working efficiency in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a press forming method using a rotary table in the press forming field.

Conventional technology Traditionally, forged parts are manufactured through multiple processes. Multiple single-process forging presses are arranged in a line or in an L shape, and the materials are individually moved using a manipulator such as a robot or an I/transfer machine. It was transported to each position of a forging press and formed.

Problems to be Solved by the Invention For this reason, a cocoon break or a transfer machine is required between each forging press, and the material must be put into the mold of each forging press and taken out, so the net press It was taking up extra time and was reducing productivity.

Therefore, the applicant has developed a device in which a rotary table is installed in a single forging press, and molds for the number of press steps required are placed around the rotary table, allowing forging to be performed with one injection of material. are doing.

Therefore, it has become possible to significantly improve productivity compared to the past.

However, the cost of the equipment is quite high compared to the molded parts, and increasing the production efficiency of the equipment has been a future challenge.

Means for Solving the Problems The present invention has been made in view of the above points, and in order to solve the problems listed in L, a rotary table is disposed between the press slide and the head of the press molding device, and , Molds or mold holders for an integer multiple of the required number of press steps are arranged around the rotary table, and a material input section and a molded product ejection section for the integral multiple of the above number are provided on the side of the rotary table. The material or the mold loaded with the material is put into the mold or mold holder of the rotary table from the input section, and the rotary table is rotated one pinch at a time, and the materials are sequentially poured out using a specified punch or the like installed in the press molding device. To provide a press molding method using a rotary table, which is characterized by pressing and molding.

According to the present invention, even if the molded part requires multiple press steps, the material only needs to be input once, and the extra time can be reduced as much as possible by using the rotary table installed in the press molding device. .

In addition, by arranging molds or mold holders that are an integral multiple of the number of press steps required around the rotary table, it is possible to
4 and take out the molded product, press molding can be performed at an integral multiple of the conventional production speed for each rotation of the rotary table, and high efficiency of press molding can be achieved.

Example Hereinafter, the present invention will be explained based on examples.

FIGS. 1 and 2 show an embodiment of a forging press according to the present invention. As shown in Fig. 1, the press-forming device for a forging press has a rotary table 4 rotatably disposed between a press slide 2 and a bellow ['3] around the output center axis of a press-formed W1. As shown in FIG. 2, molds 5 are arranged radially around the rotary table 4 at uniform pitches.

The mold 5 is an integral multiple of the number of pressing steps required for the molded product (
In the figure, two times as many pieces (8 pieces) are arranged on the rotary table 4 in 4 steps. In other words, as shown in Figure 2, A
, B, C, D, if the number of press steps is required, additional A
, B, C, and D are arranged.

Below this rotary table 4 is a head 3 as shown in FIG.
A lower gouge plate 6 is installed on the upper side of the rotary table 4, and an upper gouge plate 8 is installed on the upper side of the rotary table 4, with required punch parts 7 protruding from the press slide 2, facing the mold 5 described above.
is installed.

As shown in FIG. 2, a material input section 9 and a molded product removal section 10 are provided at axially symmetrical positions of the rotary table 4, and the material 11 is fed from the two material input sections 9 on the circumference of the rotary table 4. The molded products 12 that have been put into the mold 5 and press-molded from the two molded product take-out portions 10 are pushed up by knockout bins (not shown) so that they can be taken out from the mold 5, respectively.

Incidentally, the press slide 2 of the press forming apparatus 1 can be driven up and down by a known forging means, and the rotary table 4 can be driven to rotate by a punch table or by turning with a servo motor or the like. You can do it.

Therefore, in a single forging press press-forming device, the rotary table sequentially rotates one pitch and the material can be pressed and formed by one pitch of the material.

Then, molds with an integral number of times (in this example, twice) the number of steps required for press molding are arranged on the rotary table, and materials are charged from two places on the rotary table and press-formed, resulting in a molded product. Since the rotary table rotates once, it is possible to produce an integral number of press-formed products.

In the present invention, since an integral number of molds are arranged on the rotary table, it is suitable for mass production of the same product, but it is also possible to arrange different molds to mold different types of products.

Other examples FIG. 3 shows another embodiment of the invention.

In this embodiment, four times as many molds 5 as the required number of press steps are arranged around the rotary table 4, and the material 11 is charged into the molds 5 from four places around the rotary table 4, and Mold 5
The molded product 12 is taken out from the container.

In this way, press molding can be performed by arranging molds in an appropriate integral multiple of the number of press steps required, and productivity can be increased.

In the above embodiments, the mold was arranged on a rotary table, material was put in, and the molded product was taken out. It is also possible to put the whole mold into a mold holder and take it out together with the mold, and in short, it is possible to adopt a means that can produce an integral number of times with one rotation of the rotary table.

In addition, in the above explanation, the molds are arranged on the rotary table in an axially symmetrical manner according to the number of required processes, which is preferable because the eccentric load applied to the press can be kept small. They can also be arranged as appropriate to improve production efficiency.

Although a forging press has been described as a press forming apparatus, it is also applicable to other press methods that require multiple steps.

Effects of the Invention As described above, in the present invention, press forming can be performed with high work efficiency using a rotary table, and 1.
It is possible to press-form an integral number of molded products with one rotation of the rotary table, and mass production can be performed with good equipment investment efficiency.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted schematic front sectional view of one embodiment of the present invention, FIG. 2 is a plan sectional view of the rotary table section of the same embodiment, and FIG. 3 is a plan view of the rotary table section of another embodiment of the same embodiment. FIG. 1... Press molding device, 2... Press slide, 3
... Bed, 4... Rotating table, 5... Mold,
7... Punch part, 9... Material input part, 10... Molded product take-out part, 11... Material, 12... Molded product. Applicant Kawasaki Yuko Co., Ltd. Agent Patent Attorney Kuni Moriki 1...Press forming device 2...Press slide 4.
...Rotary table 5...Mold 7...Punch part 1
0... Molded product removal section 11... Material 3.
... Het 9 ... Material input section 12 ... Molded product

Claims (1)

[Claims] (1) A rotary table is disposed between the press slide and the bed of the press molding device, and molds or mold holders for an integral number of press steps are arranged around the rotary table, and the rotary table is rotated. A material input section and a molded product removal section are provided on the sides of the table, each having an integer multiple of the above, and materials or molds loaded with materials are input from the material input section into the mold or mold holder of the rotary table, and the rotary table is rotated. A press forming method using a rotary table, which is characterized in that the material is sequentially pressed and formed using a predetermined punch or the like disposed in a press forming device while rotating the table one pitch at a time.