JPH0318013Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to presses, and more specifically, it is a press for processing plate materials equipped with a numerically controlled automatic plate material movement and positioning device, which automatically moves a mold without changing the plate material. Regarding presses that can perform a wide variety of press processing such as punching, blanking, and burring by exchanging or selecting multiple dies, it is also possible to perform a wide variety of press processing such as punching, blanking, and burring. It also relates to a press that has a wide range of processing capabilities and can also perform press fitting, swaging, etc. by introducing members such as nuts and pins.

Previously, presses capable of processing a wide range of materials were equipped with large-diameter upper and lower turret discs and various large and small molds near the outer periphery, but these presses were large and expensive, and large molds were required. There was an inconvenience that the number of models had to be reduced if they were all aligned.

The present invention was devised to eliminate the disadvantages of the turret type press, and preferred embodiments thereof will be described in detail below with reference to the drawings.

What is shown on the right side of FIGS. 1 and 2 is a mechanical press 1 with a C-shaped frame. In front of the bolster 3 of the press 1, there is a fixed table 7 fixed to the machine base 5. It rides on guide rails 11, 11 provided in the front and back direction (Y-axis direction shown in FIG. Left and right movable tables 15,1
5 is a Y-axis lead screw 17 installed on the machine base 5.
and moves in the Y-axis direction.

The lead screw 17 is numerically driven by a pulse motor 19 shown in FIG.

The carriage base 13 described above is provided with an X-axis lead screw 23 driven by a pulse motor 21.
A carriage 25, which is provided with a nut member (not shown) that is screwed into the shaft, is moved and positioned in the X-axis direction.

The above-mentioned carriage 25 has a plurality of gripping claws 2.
7 is provided, and the plate material 29 shown by the two-dot chain line in FIG.

A large number of free ball bearings 3 are provided on the upper surfaces of the movable tables 15, 15 and the fixed table 7.
1 are installed, and the plate material 29 is supported horizontally by these and moves.

The device shown on the left side of FIG. 2 is an automatic board material supply/discharge device 33, and the board material supply device 35 shown in the upper part of the figure feeds one of the topmost boards 29 stacked below under vacuum at the position shown in the figure. After adsorbing it with a cup (not shown) or the like and moving it to one end side (lower side in Fig. 2) on the rails 37, 37, extend the fluid pressure cylinder 39 and move the frame 41 to the right. Then, the plate material 29 is transferred to the top of the movable table 15.

After the transfer, the plate material 29 is lowered, the frame body 41 is returned to the left, and the entire plate material supply device 35 returns to its original position.

The lower part of the movable plate material supply/discharge device 33 in FIG. The processed plate material 29 is clamped from the left end and moved to the left side to be discharged.

The C-frame press 1 has thick side frames 51 provided on both sides of the rear of the machine base 5, and has a gap part 53 between it and the front of the machine base 5, and a ram 55 on the part that protrudes forward. It is provided. (3rd
(See figure) A guide rail 57 in the front-rear direction is provided between the left and right side frames 51, for example, with grooves of channel-shaped members facing each other. A chamber 59 can freely enter and exit the groove of the guide rail 57, and a large number of free ball bearings 31 are installed on the upper surface of the guide rail 57.

The aforementioned chamber 59 is driven by, for example, a sprocket 61 and is movable in the groove to the left and right in FIG. There is.

As is clear from FIG. 3, a mold storage section 65 is provided at the rear position of the press 1 (the right side position in FIG. 3). A stock stand 71 on which a plurality of mold units 69 are mounted is supported on a stand 67 in the mold storage section 65 so as to be movable in the left-right direction (in the front and back directions of the paper in FIG. 3).

Next, as shown in FIGS. 4 and 5, the press 1
The ram 55 is provided with an operation selection device 73.

Striker 7 which is one of the operation selection devices 73
5 comprises a piston 79 of a fluid pressure cylinder 77 provided, for example, at the left and right center of the ram 55, a strike plate 81 as an example of a strike member, and a return bullet 83.

Therefore, as shown in FIG.
When pressurized oil is supplied to 7 and the strike plate 81 is made to protrude downward from the lower surface of the ram 55, the upper die 87 engages with the plate material 29 placed on the lower die 85 to perform press working. However, as shown in FIG. 5, when the supply of pressure oil is released, the strike plate 81 is immersed into the ram 55 by the return machine 83 and does not come into contact with the upper part of the upper mold 87, and the pressing operation is not performed. Not possible.

Another example of the operation selection device 73 is used for a small-diameter mold unit 89 that performs relatively small-diameter punching operations, such as a punch head 9.
The operation of each punch 95 is selected by inserting or removing the strike block 93 between the punch block 1 and the ram 55.

For example, as shown in FIG. 4, the strike block 93 is positioned on the punch head 91 of a desired punch 95 using the rack 97 and pinion gear 99, and the punch 93 is positioned on the punch head 91 of the desired punch 95 as shown in FIG.
5 is engaged with the corresponding die 101 to process the plate material 29.

The micro switch 103 provided on the ram 55 above the punch head 91 shown in FIG. 4 has a function of detecting the arrangement of the strike block 93.

The press according to this embodiment further includes a side frame 5.
As a device for processing the plate material 29 using an operating source other than the ram 55 on the outside of the ram 55, for example, a tapping device, a drilling device, a finishing device for the peripheral surface of a punch hole, and a press fit or swaging process by introducing nuts, pins, etc. Equipped with equipment.

The tapping device 10 shown in FIG.
5 and a press fit device 107 of a nut member is shown.

The tapping device 105 of this device is provided with an operating source separate from that for driving the ram 55, and the press fit device 107 is also provided with an independent operating source.

The press according to the embodiment described in detail above is equipped with a mold storage at the rear, and can be easily replaced by moving between a fixed position on the bolster and a position in the storage, and is equipped with a large number of various types of mold pairs. The mold unit is mounted on the bolster and is equipped with an operation selection device that allows for selective machining with the desired tool pair.Since processing devices other than ram operation are also installed outside the side frame, large-sized It does not require a large-scale machine like a press with an upper and lower turret plate, and it has the advantage of being able to prepare as many different types of molds as a turret press, allowing a wide range of processing to be performed in one grip without changing the plate material. I got it.

As can be understood from the above description of the embodiments, the gist of the present invention is as stated in the claims for utility model registration. A strike member is provided approximately at the center of the ram, and is provided so as to be movable up and down and to be held in the up and down positions. Therefore, when the strike member is held in the lowered position relative to the ram, the first mold mounted on the bolster can be actuated, and when the strike member is held in the raised position. When the first mold is held at 1, the first mold is not operated and is in an inoperative state. In other words, it is possible to easily select whether the first mold is activated or not.

In addition, in the present invention, a slide block that individually operates a plurality of second molds mounted on a bolster adjacent to the first mold is movable at a position where each of the second molds is operated. Since it is provided in
It is possible to selectively operate the second mold.

Furthermore, in the present invention, a mold storage section is provided at the rear of the bolster, and the mold storage section is equipped with a stock stand that supports the mold and is movable in the left and right direction. A chamber for transferring and exchanging molds is provided so as to be movable in the front and rear directions. Therefore, according to the present invention, the mold can be automatically attached to and removed from the bolster and replaced from the rear of the press, making it possible to effectively utilize the front and sides of the press. Therefore, the function of the press can be improved compared to the conventional structure in which the molds are replaced from the front side. Furthermore, processing can be performed by combining the replaced new mold and the second mold, increasing the number of combinations of molds that can be used.

Note that the present invention is not limited to the above-described embodiments, but can be implemented in other forms by making appropriate changes.

[Brief explanation of the drawing]

Figure 1 is a front view of the press body according to the embodiment of the present invention, Figure 2 is a plan view of the press body and the automatic sheet material feed/discharge device, and Figure 3 is a side view showing the press body and mold warehouse. FIG. 4 is an explanatory diagram showing the operation selection device same as above, and FIG. 5 is an explanatory diagram showing different operation states of the same explanatory diagram. Explanation of the symbols representing the main parts of the drawings, 1...Press, 33...Automatic sheet material supply/discharge device, 55...Ram, 65...Mold warehouse, 73...Operation selection device,
89...Mold unit for small diameter molds, 93...Strike block.

Claims (1)

[Scope of utility model registration request] A strike member for actuating the first mold mounted on the bolster 3 is placed at approximately the center of a ram 55 that is movable up and down above the bolster 3 in the press and is movable up and down. A second mold is mounted on the bolster 3 on both sides of the first mold to operate a plurality of punches respectively provided in each of the second molds. A strike block 93 is attached to the lower surface of the ram 55, and the strike block 93 is selectively movable to a position where each punch in each second die is actuated individually. At the rear position, there is a stock stand 7 that supports the mold and is movable left and right.
1 is provided, and a chamber 59 for transferring and exchanging molds from the mold storage section 65 onto the bolster 3 is provided so as to be movable in the front and rear directions. press.