JPH0320077Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an oil return circuit for an oil pan under a gib in a C-frame press.

Conventionally, lubricating oil was supplied from above to the guiding gib installed on the frame to raise and lower the slide of a C-frame press, an oil receiver was provided below the gib, and an oil return pipe from the oil receiver was passed through the inside of the frame to supply oil. It was returned to the tank. Therefore, not only does the inner dimension of the frame become narrower due to the piping, but it also tends to catch on the piping, which has the disadvantage of obstructing the loading of materials and the removal of products in the front-rear direction of the press. Of course, it is possible to provide the oil return piping from the oil pan on the outside of the frame, but such a circuit design is usually not done because it spoils the appearance of the press.

The purpose of the present invention is to eliminate this drawback by making a hole for oil return in the reinforcing plate of the frame and using it for piping from the oil pan to remove obstacles inside the frame and make it easier to carry in materials and take out products. An object of the present invention is to provide an oil return circuit for an oil pan under a gib in a C-frame press that can be simplified. Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1, 2, and 3, an oil return circuit of a gib lower oil pan 9 provided on the C-frame press 1 is shown. As shown in FIGS. 1 and 3, the slide 3 of the C-frame press 1 is attached to the frame 2, with its left and right protrusions 3a facing up and down being guided by a liner 4 provided on the frame 2 on the rear side. It is guided by the left and right side surfaces and the front side by liners 6 and 7 provided on the gib 5, and is held on the frame 2 so as to be able to rise and fall freely. A reinforcing plate 8 is welded and integrated inside the left and right frames 2. The gib lower oil pan 9 is located below the liners 4, 6 and 7 as shown in FIG. 1, and the contact surface between the liners 4, 6 and 7 and the projection 3a of the slide 3 is It has a planar shape that lubricates and receives oil that falls off, and is fixed to the front side of the reinforcing plate 8 at the jaw portion of the frame 2 with bolts or the like. There is a hole 1 for oil return between the front side and the rear side of the reinforcing plate 8 to which the gib lower oil pan 9 is attached.
0 is set. Connection box 1 is installed at the exit of hole 10.
1 is attached to the reinforcing plate 8, and the hole 10, the gib lower oil pan 9, and the connection box 11 are connected in an oil-tight manner. Another junction box 12 is provided below the rear side of the reinforcing plate 8, and the junction boxes 11 and 12 are connected by a pipe 13. The above circuit is for left and right frame 2
The connection boxes 12, 12 are connected by hoses 16, 16 to a portable oil tank 15 disposed in a space behind the bed 14 of the press, respectively. The oil tank 15 has a built-in oil pump, and the lubricating oil that has been purified through a filter is supplied to the required parts of the press, such as the upper part of the liners 4, 6, and 7, from the discharge port 17. The piping from is omitted.

In this way, from the gib lower oil pan 9 to the oil tank 15
The oil is returned to the junction box 1 through the hole 10 made in the reinforcing plate 8.
1, 12, since it flows through piping 13 and hose 16, the internal dimension of frame 2, that is, the distance l between reinforcing plates 8 and 8 (Fig. 2), is the material to be carried into the press and the product after press processing. It has the effect that it can be effectively used for carrying out.

As is clear from the above explanation, according to the present invention, the space between the left and right frames can be fully used for carrying in materials and carrying out products by providing holes for oil return in the reinforcing plate of the frame. This has great practical effects and advantages, such as making the press work easier and making the inside of the frame look smoother.

[Brief explanation of drawings]

Fig. 1 is a right side view of a partial cross section of the C frame press according to the embodiment, Fig. 2 is a rear view, and Fig. 3 is a partial cross-sectional view of the C frame press according to the embodiment.
FIG. 1 is a C frame press, 2 is a frame, 3 is a slide, 3a is a protrusion, 4 is a liner, 5 is a give, 6
is liner, 7 is liner, 8 is reinforcing plate, 9 is oil pan under gib, 10 is hole, 11 is connection box, 12 is connection box,
13 is a pipe, 14 is a bed, 15 is an oil tank, 16 is a hose, and 17 is a discharge port.

Claims (1)

[Scope of Claim for Utility Model Registration] Gib 5 that guides the slide of the press so that it can move up and down in a circuit that returns oil from below the gib of a C-frame press to the oil tank.
The gib lower oil pan 9 is fixedly installed on the front side of the reinforcing plates 8, 8, which are located below the frame on both sides of the press and welded to the inside of the frames on both sides of the press. Board 8,
A junction box 11 is fixedly installed on the rear side of the reinforcing plate 8, and the reinforcing plate 8 is provided by penetrating the reinforcing plates 8, 8 in the front and back direction.
A hole 10 whose both ends are oil-tightly connected to a gib lower oil pan 9 and a connection box 11 to serve as an oil flow path. return circuit.