JPS61278636A - Automatic horizontal regulating device for various machine structures needing horizontal adjustment - Google Patents

Abstract

PURPOSE:To enable to perform horizontal adjustment with high precision, by a method wherein operation of first and second valve bodies, opening and closing an air inlet and an air duct port, is controlled through vertical movement of a lever body brought into indirect contact with a cradle on which a device, needing horizontal adjustment, is placed. CONSTITUTION:A lever body 41 is pivotally mounted at 42 to a machine frame 1 of an automatic horizontal regulating device A, and a first valve body 2 and a second valve body 3 are positioned so that valve heads 17 and 25 can be brought into contact with the lever body 41. The two valve bodies 2 and 3 are intercommunicated through a ventilating hole 6 and an orifice part 8, and the two valve bodies are incorporated in parallel in the machine frame. The first valve body 2 is communicated with an air inlet 5 through a ventilating hole 4, and the second valve body 3 is communicated with an air duct port 7. The first valve body 2 is formed with a vertically slidable valve rod 12, provided at the interior with an exhaust pore 11, and a valve seat 15, and the second valve body 3 is formed with a vertically slidable valve rod 21 and a valve seat 23.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an automatic leveling device that can be used in a wide variety of mechanical bodies that require horizontal adjustment, including, for example, vibration isolators for various types of equipment using air spring mechanisms. It is related to.

Conventionally, automatic leveling devices that are installed in vibration isolators for various types of equipment that utilize air spring mechanisms have a very large and complex mechanism, but the leveling process is difficult. The reality is that the accuracy was poor. Therefore,
Conventionally, there has been a strong desire to develop an apparatus that is simple and compact in structure and has high leveling accuracy.

The present invention was developed in view of the existing circumstances as described above, and its purpose is to make the device itself compact and extremely easy to install in various mechanisms, and to have a high-precision horizontal adjustment function. Of course, it is possible to easily adjust the specified horizontal position as required from outside the mechanism in which the two devices are installed, and furthermore, it is possible to easily adjust the designated horizontal position as required from the outside of the mechanism in which the two devices are installed. The object of the present invention is to provide an automatic leveling device that can constantly automatically adjust the level by instantly eliminating swings and vibrations of a mechanism in which the device is used, while immediately responding to such fluctuations.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus according to the present invention will be described below with reference to the attached drawings. The embodiment shown in the drawings is an installation example of the device of the present invention which can be used in a very wide range of various mechanisms that require horizontal adjustment, and is particularly suitable for the protection of equipment using an air spring mechanism. This shows a case where the present invention is applied to a vibration device body.

In the figure, A is the automatic leveling device according to the present invention, B is an appropriate air spring body, C is a pedestal in the vibration isolator body on which equipment is mounted, and D is the lower pedestal or floor surface of the vibration isolator body, etc. Therefore, the device A of the present invention is itself fixed to the base portion, and the tip of the lever body 41 provided above the device is provided with an appropriate lever body adjustment protruding from the pedestal C. The air passage port 7 is disposed in contact with the lower end of the portion 44 and communicates with the air spring body B. In addition, the air supply port 5
is in communication with an appropriate air source not shown in Figure 1, and the air spring body B is fixed to the frame C.

The machine frame 1 of the automatic leveling device A arranged in this manner is provided with the lever body 41 which is pivotally mounted 42 and moves by pressing as indicated by the arrow in the figure, and the lever body 41 is provided with the lever body 41 which is pivoted and moves as shown by the arrow in the figure. 7 is provided. In the machine frame l of the device, there is a first
The two valve bodies 2.3, which include the valve body 2 and the second valve body 3, communicate with each other through the vent hole 6 and the orifice portion 8, and are built in parallel in the machine frame. The valve body 2 is communicated with an air inlet 5 through a ventilation hole 4, and the second valve body 3 is connected to an air passage opening 7.
It communicates with

The first valve body 2 has a small exhaust hole 11 inside, a sliding opening on the upper and lower sides, a valve stem 12, an elastic body 13 attached to the lower part of the valve stem, and a constricted part 14 inside the machine frame. It consists of a valve seat 15 which is disposed below the rod so as to be movable up and down and is made of a suitable elastic material, and an elastic body 16 which is attached to the lower end of the valve seat. The second valve body 3 includes a valve stem 21 that is vertically slidable, and a valve seat that is vertically movable inside the lower end of the valve stem via a constricted portion 22 inside the machine frame, and is made of an appropriate material such as an elastic material. 23, elastic body 2 attached to the lower end of the valve seat
4. Consists of.

In the figure, numerals 31 and 32 indicate an O-ring, and 33 indicates a bearing portion of each valve stem.

As described above, the machine frame 1 houses the first valve body 2 and the second valve body 3.
As described above, the lever body 41 is pivotally attached 42 to the lever body 41 . Although the material of the lever body itself is not particularly limited, it is convenient to form it from a metal material having an appropriate elasticity, and the tip thereof is connected to an appropriate lever body adjustment part 4.
It is in contact with the lower end of 4.

In addition, each abutting body 43 may be provided at each position of the lever body 41 that abuts the valve head 17.25 of each of the first and second valve bodies 2 and 3. 43 is not necessarily required, but if it is provided, it is convenient to make its thickness variable so that the width of contact with each valve head 17.25 can be freely changed. It is. Further, the lever body adjustment section 44 may be constructed of bolts and nuts as appropriate so that the degree of contact of the lever body 41 itself with respect to each valve head 17.25 can be freely changed. The lever body adjustment section 44 does not necessarily need to be provided protruding from the pedestal C, and although it is not particularly shown, the adjustment section may be provided protruding from the lever body 41 itself. The top end of the frame may be brought into contact with the back surface of the frame.

The automatic leveling device mA according to the present invention constructed as described above operates as follows.

The pedestal C on which appropriate equipment such as machine tools is mounted has an air spring body B that exhibits a vibration-proofing effect, and the air supply and exhaust of the air spring body itself is controlled by the device A that automatically adjusts the level of the pedestal at all times. It will be controlled by The details will be described below.

First, in the ice making MA, when air is to be supplied to the air spring body B, each part inside the device is in a state as shown in FIG. That is, since the air spring body B is in a state where air should be supplied, the pedestal C is lowered and the lever body 41 is pressed downward by the lever adjustment part 44, so that the lever body is lowered. The valve stem 12 of each valve body is suppressed.
21 also descends, and as each valve stem descends, each valve seat 15.23
is pushed downward, and the upper end of each valve seat and each constriction 14 inside the machine frame
．． 22, and an appropriate gap is formed between the lower end and the lower end. Therefore,
In this case, air is supplied to the air spring body B mainly from the second valve body, but also from the first valve body via the orifice portion 8.

When air is supplied to the air spring body B in this way,
In accordance with the supply, the pedestal C gradually rises, and in response to the rise of the pedestal, the lever body 41 also rises. Therefore, as the lever body rises, the lever body first separates from the valve head 25 of the second valve body 3, so that the valve seat 23 of the second valve body rises and air is removed from the second valve body. Supply is stopped. At this time, since the first valve body 2 is still in the state shown in FIG. 2, the lever body 41 further rises from the first valve body, which is in the state of supplying air to the orifice portion 8, albeit slightly. When the valve stem 12 of the first valve body 2 moves upward, the valve seat 1 of the first valve body
5 also rises at the same time, the air supply gap is closed, and the air supply from the first valve body is also stopped, and the air supply from each of the first and second valve bodies is completely stopped. At this time, the upward movement of the first valve body 2 closes the air inflow gap.

valve! When the lower end of the ji 12 is brought into contact with the upper surface of the valve seat 15 made of an elastic material due to the elastic action of the valve seat 15, and the exhaust from the small exhaust hole 11 is also stopped, this device A
In this case, the supply and exhaustion of the air is completely stopped, and the pedestal C is in a horizontal state. As described above, FIG. 3 shows the inside of the main mounting when the pedestal C is in a horizontal state.

In addition, in this device, even if the air supply from the second valve body 3 is stopped, the first valve body 2 itself is not activated by the upward movement of the pedestal C or when the second valve body is not operated. In response to the downward movement, each part of the first valve body is always placed in an automatic operating state to supply and exhaust air, so the first valve body always finely adjusts the air supply and exhaust that should automatically adjust the level of the pedestal. It is said to be in a state of

Therefore, such an ice maker 21A is equipped with a second valve body 3 whose main purpose is to supply a large amount of air in a short period of time.

It can be said that this is an extremely rational combination with the first valve body 2 whose main purpose is to finely adjust the air supply and exhaust air necessary to maintain the horizontal position of the pedestal.

In the ice making device 21A, when the horizontal level of the pedestal C rises above the specified position, the lever body 41 rises as the pedestal C rises, as shown in FIG. It will rise. Therefore, the lower surface of the valve stem of the first valve body 2 separates from the upper surface of the valve seat 15, and at the same time, the excessively supplied air is exhausted from the air spring body B through the orifice portion 8 and from the small exhaust hole 11. Become. Then, when the exhaust from the exhaust hole 11 of the first valve body is completed and the exhaust necessary to maintain the horizontal position of the pedestal is completed, the device A will be placed in the state shown in FIG. 3. As explained above, in the device A of the present invention, even when any vibration occurs in the pedestal C, the air supply and exhaust states are automatically operated at all times, so that the air supply and exhaust state is stopped, that is, the pedestal The horizontal state can be automatically obtained instantaneously and with high precision at all times.

Note that the designated horizontal position of the gantry C in this apparatus A is determined by the degree of adjustment of the lever body adjustment part 44 with which the lever body 41 is in contact at its tip, depending on the weight of the mounted equipment, etc.
Alternatively, in the case where each abutting body 43 is provided protrudingly from the lever body, the thickness degree of the corresponding abutting body can be easily and freely determined as 2.

Further, the determination or range of the so-called neutral zone in the state where air supply and exhaust are stopped, that is, in the horizontal state of the pedestal, can be freely determined by the elastic modulus of the elastic material used for the valve seat of each valve body or the length of the lever body 41. can be selected.

Furthermore, in the device of the present invention, if an appropriate switching valve for controlling the air pressure level is provided at the air inlet 5 or the like, the device itself can be switched to one exclusively for exhaust by operating the valve.

In this way, the device according to the present invention, when sudden vibrations occur in the frame of a vibration isolator body or the like that requires horizontal adjustment, instantly eliminates the induced rocking and vibrations while immediately responding to the vibration fluctuations. In addition to automatically adjusting the level of the mount at all times, the designated above-water position can be easily adjusted from outside the device according to the type of mechanism that requires horizontal adjustment. Moreover, the device itself is compact and is extremely suitable for various types of mechanisms. It is an automatic leveling device that can be easily equipped and has high accuracy.

[Brief explanation of the drawing]

FIG. 1 is a partial schematic side view showing an example to which the device of the present invention is applied, and FIGS. 2, 3, and 4 are longitudinal sectional views of the device. Main symbols in the diagram A: automatic leveling device, B: air spring body, C-
... Frame, D...Base part, 1...9 machine frame, 2...
First valve body, 3... Second valve body, 5... Air supply port, 7
... Passage entrance, 8 Φ, orifice part, 14.22...
・Constriction inside the machine frame, 41...Lever body, 43-...
Contact body, 4411...Lever body adjustment part. %2 figure 3 figure %1 figure

Claims (1)

[Claims] 1. An air inlet 5 that communicates with an appropriate air source, and an air passage port 7 that communicates with an air spring body B, etc. installed in a vibration isolator or the like that requires horizontal adjustment. In the automatic leveling device A, a first valve body 2 having a small exhaust hole 11 communicating with the air intake port 5 and an orifice communicating with the air passage port 7 are provided in the machine frame 1 of the device. 8 and a second valve body 3 that communicates with the first valve body 2 through the vent hole 6, and adjusts the air supply and exhaust of each of the first and second valve bodies necessary for automatic adjustment of horizontal maintenance. A mount C for mounting equipment in a vibration isolator, etc., whose one end is pivotally attached to the device frame 1 42 and whose other end requires horizontal adjustment via a suitable lever adjuster 44. An automatic leveling device A for various mechanisms requiring horizontal adjustment, which can be achieved by vertical movement of a lever body 41 that is in indirect contact with the lever body. 2. Various mechanisms requiring horizontal adjustment as set forth in claim 1, in which the lever body adjustment portion 44 is provided protrudingly from a frame C for mounting equipment in a vibration isolator or the like that requires horizontal adjustment. automatic leveling device A. 3. The automatic leveling device A for various mechanisms requiring horizontal adjustment as set forth in claim 1, wherein the lever body adjustment portion 44 is provided protrudingly from the lever body 41 itself. 4. The automatic leveling device A for various mechanisms requiring horizontal adjustment as set forth in claim 1, wherein the lever body 41 is made of a suitable elastic material. 5. Each valve head 17 and 2 of the first valve body 2 and second valve body 3
Claims 1 and 2 include contact bodies 43 protruding from each position of the lever body 41 in contact with the lever body 41 in such a manner that the thickness thereof can be freely changed. Automatic leveling device A for various mechanisms that require horizontal adjustment.