JPH0728188Y2 - Foundation anchor bolt - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a base anchor bolt for various machines such as machine tools.

[Prior art]

When installing various machines and devices such as machine tools in a factory, usually the floor of the factory is newly dug and foundation work is performed. In the conventional foundation work, since the anchor bolts are embedded at the time of placing the concrete, there is a problem that the inter-center dimension between the anchor bolts cannot be accurate. Furthermore, since a curing period of about one month is required after the foundation concrete is placed, there is a problem that it takes time from foundation work to installation of machinery and the like. Further, since it is necessary to newly perform the foundation work, there is a problem that the layout of the machines and devices in the factory cannot be easily and freely changed.

[Problems to be solved by the device]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a foundation anchor bolt which solves the above-mentioned conventional problems and enables the layout of machines, devices, etc. to be changed easily and freely in a factory.

[Means for Solving the Problems] The present invention solves the above problems by using an anchor nut that is movably supported by an anchor base fixed to a floor and a jack that is height-adjustably screwed to a machine frame. Bolt and
By having a bolt inserted into the jack bolt, having one end screwed to the anchor nut and the other end screwed to the nut, by tightening the nut screwed to the bolt,
The problem was solved by the foundation anchor bolt where the jack bolt is fixed to the anchor base.

[Action]

According to the present invention, the anchor base is fixed to the floor, and the fixing bolt is inserted into the height-adjusted jack bolt,
One end is screwed onto an anchor nut supported by the anchor base. Next, by tightening the nut screwed to the other end of the fixing bolt toward the jack bolt, the anchor base is tightened and fixed between the jack bolt and the anchor nut via the fixing bolt. Therefore, the machine frame is fixed to the anchor base via the jack bolt.

〔Example〕

 The details of the present invention will be described based on an embodiment shown in the drawings.

1 to 3, at the time of construction of a factory, a commercially available nut anchor 2 is planted on a floor 1 that is finished to have sufficient strength in advance, and a bolt 3 is screwed into the nut anchor 2 to anchor the anchor. The base 4 is fixed to the floor 1.

A plurality of jack bolts 6 are screwed into a frame 5 of a machine, device, etc. to be installed on the floor 1, for example, a machine tool, as shown in FIG. 5, for example.

When installing a machine or the like, the floor board 7 is placed on the anchor base 4, and the machine is arranged so that the jack bolts 6 are placed on the floor board 7. By adjusting the screwing amount of the jack bolt 6, the height of the machine frame 5 with respect to the floor 1 can be adjusted. When the adjustment of the screwing amount of the jack bolt 6 is completed, the lock nut 8 into which the jack bolt 6 is screwed is tightened so that the jack bolt 6 is
Lock the adjustment amount of.

Prior to fixing the jack bolt 6 to the anchor base 4, as shown in FIG. 4, a centering jig including a pin 10 having the same diameter as the hollow hole 9 of the jack bolt 6 is inserted into the hollow hole 9 from above. The tip of the pin 10 is formed as a taper portion 11, and the taper portion 11 is inserted into a screw hole 14 of an anchor nut 13 inserted into a lower recess 12 of the anchor base 1 so that the jack bolt 6 and Anchor nut
Centering with 13 is easily performed. Anchor nut
Since 13 can be moved back and forth and left and right within the lower recess 12, the misalignment can be easily adjusted.

After centering, the pin 10 is extracted from the jack bolt 6, the fixing bolt 15 is inserted into the hollow hole 9 of the jack bolt 6, and screwed into the anchor nut 13. After that, the nut 16 is screwed into the fixing bolt 15 and tightened toward the jack bolt 6, whereby the base plate 7 and the anchor base 4 are tightened between the jack bolt 6 and the anchor nut 13, and thereby the frame 5 is fixed to the anchor base 4. Can be fixed to the floor 1 via.

〔effect〕

The present invention eliminates the need for special foundation work when installing machines and the like, and allows the factory layout to be changed easily and freely. In addition, the inter-center dimension of the anchor bolt can be accurately determined, the installation of the machine is simplified, and the curing period of the foundation work is unnecessary, and the workability is remarkably improved.

[Brief description of drawings]

1 is an explanatory front view of a foundation anchor bolt according to the present invention, FIG. 2 is a plan view, FIG. 3 is a bottom view, FIG. 4 is an explanatory view of centering work, and FIG. 5 is an application example of a machine. It is a front view shown. 1 …… Floor 4 …… Anchor base 5 …… Machine frame 6 …… Jack bolt 13 …… Anchor nut 15 …… Fixing bolt 16 …… Nut

Claims (1)

[Scope of utility model registration request] 1. An anchor nut, which is movably supported within a predetermined range between a floor and an anchor base by an anchor base fixed to the floor, and is height-adjustably screwed to a machine frame to be installed. Basic anchor comprising: a jack bolt, a fixing bolt inserted into a hollow hole of the jack bolt and screwed into the anchor nut, and a nut screwed into the bolt and tightened with respect to the jack bolt. bolt.