JPH0811037A - Movable table oil feeding piping structure - Google Patents

Abstract

PURPOSE:To reduce the space and improve the service life by expanding/ contracting the piping to feed the pressure oil using two pipes. CONSTITUTION:A pipe and a hose 14 are communicated with a pressure oil source through a connection piece 15, an oblong hole 9b integrated therewith is provided, and the tip of a pipe 10 one end of which is mounted on a fixed side oil feeding block 9 which is pivotably supported by a bearing body by a pin 12 is fixed to a movable table 1. A seal block 5 is passed in a pipe 6 whose end parts are mounted on an oil feeding block 4 communicated with an oil feeding hole 3 of the movable table 1 and mounted on the movable table 1, and mounted on the seal block 5 fixed to the movable table side 1, and slidably fitted in an expanding/contracting manner. The pipe 10 where the pressure oil flows by the movement of the movable table 1 is expanded/ contracted thereby.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping structure for supplying oil to a movable table which moves on a bed.

[0002]

2. Description of the Related Art Conventionally, for supplying oil to a movable table of this type, the piping between the movable table and the oil supply block fixed to the bed side depends on the stroke of the movable table which moves using a flexible hydraulic hose. Generally, a hydraulic hose is used to supply oil by absorbing the positional deviation.

[0003]

In the conventional hydraulic hose using a flexible hydraulic hose for refueling, the flexible hydraulic hose between the refueling block and the movable table, which is fixed because the movable table reciprocates, is Since it is repeatedly bent, it is quickly damaged and lacks in durability. Moreover, the hydraulic hose not only requires a large space, but also has an unsightly drawback. Further, back pressure is applied when returning oil.

[0004]

In view of such circumstances, the present invention addresses the above-mentioned problems by providing a seal block to be attached to a movable table on the tip side of one of the two pipes, The other side is connected to an oil supply block attached to the movable table, which is provided with an oil passage for communicating with the oil supply hole of the movable table, and the other pipe is connected at one end to the fixed side oil supply block supported by the misalignment absorbing means. The other side is slidably inserted into the pipe through the seal part in the seal block, and the fixed side oil supply block is connected to the end of the pipe hose from the pressure oil source. When the oil is supplied, the two pipes can be expanded and contracted to provide a piping structure for supplying the oil.

[0005]

When the movable table 1 is slid on the bed 2 and moved, the fixed side oil supply block 9 is prevented from being misaligned between the pipe 6 attached to the movable table 1 and the fixed side oil supply block 9. The oil sent from the pressure oil source is sent from the fixed oil supply block 9 through the pipe hose to the pipe 6 fixed to the movable table 1 through the pipe 10, and the oil in the pipe 6 is further sent to the table 1. The movable table 1 is supplied to the oil supply hole 3 from the attached oil supply block 4, and the movable table 1 moves leftward. By this movement, the pipe 10 in the pipe 6 is extended by the stroke of the movable table 1 while being sealed by the seal block 5. The extension of this stroke is performed by the extension of the two pipes.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a movable table oil supply piping structure according to the present invention, which will be specifically described below with reference to the drawings.

Reference numeral 1 denotes a movable table that slides on a bed 2, and an oil supply block 4 connected to an oil supply hole 3 for a load is attached to the movable table 1.

Further, one end side of a pipe 6 such as a steel pipe having a seal block 5 attached to the tip end side thereof is connected and attached to the oil supply block 4.

The seal block 5 includes a slide seal 7,
An oil seal 8 is arranged and attached to the end surface of the movable table 1, and a tip end side of a pipe 10 made of steel or the like, which is attached by connecting one end to the fixed side oil supply block 9, is inserted by being sealed by a slide seal 7 and an oil seal 8. are doing.

The fixed side oil supply block 9 has a shaft support piece 9a provided integrally therewith, and the shaft support piece 9a has an elongated hole 9 in the longitudinal direction.
b is provided, and the pin 12 axially supported by the bearing pieces 11a and 11b of the bearing body 11 provided on the bed 2 is inserted into the elongated hole 9b to absorb the misalignment of the pipes 6 and 10. Configured.

At the supply port 13 of the fixed side oil supply block 9,
A pipe or a piping hose 14 from a pressure oil source is connected and connected via a connecting fitting 15.

[0012]

As described above, according to the present invention, the pipe having one end attached to the fixed side oil supply block connected to the pressure oil source is fixed to the movable table and is connected to the movable table supply oil hole. The seal block fixed to the table side has its ends attached to the pipes so that it can extend and contract through the seal block, and the pipe expands and contracts as the movable table moves. It does not damage the appearance, and unlike the conventional flexible tube, it does not bend repeatedly, so there is little damage and it is durable and economical to use for a long time.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a movable table oil supply piping structure according to the present invention.

FIG. 2 is a vertical cross-sectional side view of an XX line piping unit in FIG.

[Explanation of symbols]

 1 movable table 2 bed 3 oil supply hole 4 oil supply block 5 seal block 6,10 pipe 7 slide seal 8 oil seal 9 fixed side oil supply block 9a shaft support piece 9b long hole 11 bearing body 11a, 11b bearing piece 12 pin 13 supply port 14 Piping hose 15 Connection fitting

Claims (1)

[Claims] 1. A movable table mounting structure, wherein one of the two pipes is provided with a seal block for mounting on the movable table, and the other side is equipped with an oil passage for communicating with a supply oil hole of the movable table. The other pipe is connected to the oil supply block, and the other pipe is connected at one end to the fixed side oil supply block supported by the eccentricity absorbing means, and the other side is slid into the pipe through the seal portion in the seal block. The movable table oil supply piping structure is characterized in that the two pipes can be expanded and contracted by being inserted as much as possible and the fixed side oil supply block being connected to the end of a piping hose from a pressure oil source.