JPH028159Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an installation stand suitable for installing a machine that generates vibrations, such as a press device.

[Conventional technology]

Generally, when installing a machine such as a press on the floor, an installation stand is placed between the legs of the machine and the floor in order to maintain good levelness of the machine and improve its installation stability. I'm trying to intervene. Conventionally, as an installation stand used for such a purpose, there is one shown in FIG. 2, for example.

In the installation stand shown in FIG. 2, a frame 2 is fixed to the upper surface of a vibration isolating member 1 made of rubber having vibration absorbing properties by a protrusion 1a, and a jack 3 is screwed into the center of this frame 2. A seat plate 6 having a spherical seat 6a formed at the center of the top surface is rotatably provided on the upper surface of 3 via the raceway plate 4 and steel balls 5, and a spherical portion corresponding to the spherical seat 6a is mounted on the seat plate 6. 7a on the lower surface is placed, and the leg A of the machine is
The support member 7 and the seat plate 6 are fixed to the leg part A by the male screw member 8 and the nut 9 which penetrate the support member 7 and are screwed to the seat plate 6, thereby fixing the entire device to the leg part A. This is how it was done. In addition,
Reference numeral 10 in the figure is a lock ring for preventing the jack 3 and the seat plate 6 from coming off.

In order to adjust the height of the installation stand configured as described above, the nut 9 is loosened in advance, the jack 3 is rotated by its handle 3a, and the screw action between the jack 3 and the frame 2 causes the jack 3 to be adjusted. move up and down. Note that three or more installation stands are provided, and it goes without saying that the height of each installation stand must be adjusted. When the levelness of the machine reaches a predetermined level of accuracy by adjusting the height of the installation base, the nut 9 is tightened while the male screw member 8 is stopped from rotating to complete the height adjustment.

According to such an installation stand, not only can the height be adjusted, but also the action of the spherical seat 6a and the spherical part 7a allows the machine to be easily adjusted even if the legs A and the floor B are slightly inclined. The advantage is that it can be installed stably.

[Problem that the invention attempts to solve]

In the above installation stand, when a machine that generates vibrations such as a press machine is installed, there is a problem that the levelness of the machine deteriorates after a long period of time has passed after installation. That is, when vertical vibration occurs in the machine, the vibration is transmitted to the leg A, and the leg A and the support member 7 and seat plate 6 fixed thereto vibrate up and down. In this vibration state, when the legs A and the like are displaced upward, the weight of the machine no longer acts on the jack 3, although for a very short time, and the jack 3 becomes in a state where it can freely rotate. Furthermore, since a ball bearing composed of a raceway plate 4, a steel ball 5, and a seat plate 6 is interposed between the jack 3 and the seat plate 6, the jack 3 can rotate more freely. It is now possible to do so. When a horizontal component of vibration acts on the jack 3 in such a freely rotatable state, the jack 3 is thereby rotated and the height of the installation base changes. For this reason, a problem occurred in that the levelness of the machine gradually deteriorated.

[Purpose of invention]

This invention was made in order to solve the above-mentioned problem, and its purpose is to provide an installation stand that can maintain the levelness of the installed machine well over a long period of time.

[Structure of the idea]

In order to achieve the above purpose, this invention consists of a vibration isolating member that has vibration absorption properties and is installed on the floor, a frame that is installed on top of this vibration isolating member, and A jack is connected via a screw mechanism facing the direction, and moves up and down with respect to the frame due to the screw action when it rotates relative to the frame. A seat plate on which a spherical seat is formed, a spherical part corresponding to the spherical seat of this seat plate is formed on the lower surface, a support member on which the legs of the machine to be installed are placed on the upper surface, and a support member that supports the legs above and below. As well as penetrating the
A male screw member vertically passing through the spherical portion of the support member and a central portion of the spherical seat of the seat plate, and an upper end portion protruding from the leg portion and a lower end portion protruding from the seat plate of the male thread member, respectively. , at least one of the legs is screwed onto the male threaded member;
A support member and a pair of clamping members for clamping and fixing the seat plate are provided, and an engaging part is formed between the jack and the clamping member provided at the lower end of the male threaded member to prevent relative rotation of each other. It is structured as follows.

In such a configuration, there are the following three specific embodiments of the male threaded member and the pair of clamping members. In the first aspect, the male threaded member is a simple rod-like member with threads formed at both ends, and the pair of clamping members are nuts that are screwed into each end of the male threaded member. In the second embodiment, the clamping member that presses the leg portion is formed integrally with the externally threaded member to form a tightening bolt, and the other clamping member is a nut. Furthermore, the third aspect is the second aspect.
Contrary to the above embodiment, the clamping member that presses the seat plate is formed integrally with the male threaded member to form a tightening bolt, and the other clamping member (the clamping member that presses the leg portion) is a nut.

〔Example〕

An embodiment of this invention will be described below with reference to FIG. In the embodiment shown in FIG. 1, the same parts as in the conventional example described above are designated by the same reference numerals, and the explanation thereof will be omitted.

In this embodiment, the difference from the installation stand shown in FIG. This is what we did. That is, a nut 11 having a rectangular cross section is screwed into the lower end of the male threaded member 8 having a rod shape. The dimensions of this nut 11 are smaller than the inner diameter of the raceway plate 4. Therefore, the nut 11 presses the seat plate 6, and the seat plate 6 and the support member 7 are attached to the leg part A by the nut (clamping member) 9 screwed onto the upper end of the male threaded member 8. It is supposed to be fixed.

Further, a ring-shaped portion 3b is formed at the center of the inner circumferential surface of the jack 3 and projects inward. At the center of the upper surface of the ring-shaped portion 3b, a protruding portion (engaging portion) 3c having a generally rectangular annular shape is provided.
is formed. The inner periphery of this protrusion 3c is formed into a square cross-section corresponding to the outer periphery of the nut 11. A nut 11 is positioned within the inner space of the protrusion 3c. Therefore, the jack 3 and nut 11 cannot rotate relative to each other.

In the installation stand configured as described above, when adjusting the levelness of the installed machine, the nut 9 is loosened in advance, and the jack 3 is rotated to move it up and down. At this time, it goes without saying that the vibration isolating member 1 and the frame 2 must be prevented from rotating. Note that when the jack 3 is rotated, the protrusion 3c is engaged with the nut 11, so the nut 11, the male threaded member 8, and the nut 9 are rotated.
It will rotate with. When the height of each installation base is adjusted and the levelness of the machine reaches a predetermined level of accuracy, the nut 9 is tightened while the male screw member 8 is prevented from rotating, and the adjustment work is completed.

However, in the above installation stand, nut 1
Since the protrusion 3c of the jack 3 is engaged with the nut 11, even if the jack 3 becomes able to rotate freely when the leg A etc. is displaced upward, the jack 3 will not engage with the nut 11. Therefore, its rotation is prevented. Therefore, it is possible to reliably prevent the levelness of the machine from worsening due to the rotation of the jack 3. In addition, regarding the nut 11, the leg part A
Since it is firmly fixed to the leg A and vibrates together with the leg A, it cannot freely rotate.

In the above embodiment, the nut 11 has a square cross section, but it may have a hexagonal shape or any other shape as long as it can prevent relative rotation between the nut 11 and the jack 3. . In that case, it goes without saying that the jack 3 should be provided with an engaging portion having a shape corresponding to the nut 11.
Further, in the above embodiment, the spherical seat 6a of the seat plate 6 is formed in a concave shape, while the spherical surface portion 7a of the support member 7 is formed in a convex shape. Alternatively, the spherical portion may be formed into a concave shape.

[Effect of idea]

As explained above, the installation stand of this invention includes a vibration isolating member that has vibration absorption properties and is installed on the floor surface, a frame that is installed on the vibration isolating member,
A jack is connected to this frame via a screw mechanism with its axis directed in the vertical direction, and when it rotates relative to the frame, it moves up and down relative to the frame due to the screw action, and the upper surface of this jack is rotatable. A seat plate installed on the seat plate and having a spherical seat formed on the upper surface, a support member having a spherical surface portion corresponding to the spherical seat of the seat plate formed on the lower surface, and on which the legs of the machine to be installed are placed on the upper surface. , a male threaded member vertically penetrating the leg portion and vertically penetrating each center portion of the spherical portion of the support member and the spherical seat of the seat plate;
The male screw member is provided at an upper end protruding from the leg and a lower end protruding from the seat plate, and at least one of them is screwed into the male thread member to clamp and fix the leg, the support member, and the seat plate. A pair of clamping members are provided, and an engaging portion is formed between the jack and the clamping member provided at the lower end of the male threaded member to prevent relative rotation thereof. The effect is that the horizontality of the machine can be maintained satisfactorily over a long period of time.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of this invention, and FIG. 2 is a longitudinal sectional front view showing an example of a conventional installation stand. DESCRIPTION OF SYMBOLS 1... Vibration isolation member, 2... Frame, 3... Jacket, 3c... Projection part (engaging part), 6... Seat plate,
6a... Spherical seat, 7... Support member, 7a... Spherical part, 8... External thread member, 9... Nut (clamping member), 11... Nut (clamping member), A... Leg part,
B...Floor surface.

Claims (1)

[Scope of utility model registration request] A vibration isolating member that has vibration absorption properties and is installed on a floor surface; a frame that is installed on the vibration isolating member;
A jack is connected to this frame via a screw mechanism with its axis directed in the vertical direction, and when it rotates relative to the frame, it moves up and down with respect to the frame by the screw action, and the upper surface of this jack is rotatable. A seat plate installed on the seat plate and having a spherical seat formed on the upper surface, a support member having a spherical surface portion corresponding to the spherical seat of the seat plate formed on the lower surface, and on which the legs of the machine to be installed are placed on the upper surface. , a male threaded member vertically penetrating the leg portion and vertically penetrating each central portion of the spherical portion of the support member and the spherical seat of the seat plate;
The male screw member is provided at an upper end protruding from the leg and a lower end protruding from the seat plate, and at least one of them is screwed into the male thread member to clamp and fix the leg, the support member, and the seat plate. What is claimed is: 1. An installation stand comprising a pair of clamping members, wherein an engaging portion is formed between the jack and the clamping member provided at the lower end of the male threaded member to prevent relative rotation therebetween.