JPH09301700A - Positioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suspend and hold an installed article with a holding tool astride the opening part of an installing part so as to perform work while confirming an installing operation from above by providing an intersecting arm part disposed to be extended on the installing part having the opening part in a positioning device. SOLUTION: An intersecting arm part 19 disposed to be extended on an installing part 6 having an opening part 16 is provided in a positioning device 3. A base panel 1 is suspended and held by a holding tool 7 astride the opening part 16 of the installing part 6, and the positioning device 3 is placed on the installing part 6 provided in a house 2 side while confirming the state of installing from above. The weight of the base panel 1 is supported on a supporting member 8 by keeping a gap between the base panel 1 and the installing part 6. Then, by rotating the height adjusting bolt of the holding tool 8, the height and lateral level of the base panel 1 are adjusted and, then by using the pressing tools 9x and 9y of a positioning jig 9 provided in the installing part 6 side, the base panel 1 is horizontally moved and positioned in the horizontal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device which requires high precision in positioning when installing a base or the like of heavy equipment.

[0002]

2. Description of the Related Art In construction work of various power plants, for example construction work of nuclear facilities, large pumps,
Since various equipment such as generators and heat exchangers and precision equipment are positioned and installed with high accuracy, positioning of the base itself, which is the standard for installation of these various equipment, differs from normal positioning accuracy. Positioning with high accuracy of several tens of microns to hundreds of microns is required with respect to horizontality and horizontal position.

In the conventional positioning work, a fixed object is hoisted by a crane or the like to determine a rough horizontal position.
After mounting it on a height adjustment jig such as a jack on the installation base, and then adjusting the height in the vertical (up and down: Z) direction with these height adjustment jigs to determine the height, the horizontal (vertical and horizontal: XY ) The pressing tool such as a jack is used to horizontally move the fixture by applying a horizontal force to position the fixture horizontally.

After the positioning in the height and the horizontal direction is completed, a bundle of shims (thin metal plates) is inserted between the fixture and the mount, and the mount is installed while checking the levelness. , After fixing the position in each direction, fix it with anchor bolts. Also, in the case of a relatively light installation, hoist the installation with a crane,
Gradually lower it to the installation part, and while determining the horizontal position of the installation item, insert a bundle of shims (thin metal plates) between the installation item and the installation part to check the height and levelness. While lowering it and installing it, when the position in each direction can be confirmed, it is fixed with anchor bolts.

[0005]

However, after lowering an installation object, such as a base for installing large equipment, to the installation section,
When moving horizontally, a large load is applied to the jacks and shims that bear the load of the base, so the frictional force is large, and it is necessary to apply a large force when moving horizontally, and the base will start moving once. Since it moves too much, the amount of overshoot increases, and the heavier the installed object, the greater the frictional force, making fine adjustment extremely difficult.

Further, when the platform is suspended by a crane and the position in the height direction and the horizontal direction is determined and the platform is gradually lowered and positioned, the platform is unstablely floated, so that the installation is not possible. It was difficult to fix the position of the object, and it was difficult to perform highly accurate positioning. Furthermore, the shim is compressed by the load of the bed and becomes thin after it is inserted, and the bed sinks by the amount of the thinning. Must be adjusted to perform the work, and highly skilled work is required to perform highly accurate height adjustment, and the work becomes difficult as the weight of an installation such as a base increases.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a positioning device capable of performing fine adjustment of positioning and highly accurate positioning when positioning an installation object. It is to be.

[0008]

In order to achieve the above-mentioned objects, the end portion of a main body having crossed arms extended on a mounting portion having an opening is fixed on the mounting portion. A positioning device that engages a positioning jig, supports a mounting member on the lower surface of the main body to support it on the mounting portion, and further holds a mounting object arranged in the opening by a holder provided on the main body. The positioning jig is configured to move the main body by a minute distance in two directions in a horizontal plane, and the support member has a movement assisting member at its lower end for facilitating horizontal movement. A characteristic positioning device is provided.

Further, the main body is formed by radially arranging arms around the outer periphery of the central working portion having the opening. Then, the movement assisting member is formed by providing a ball at the lower end portion of the supporting member, or by providing a bearing material having a planar contact surface at the lower end portion of the supporting member.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2,
In this example, the installation object is a base 1 having an opening 15 for installing equipment such as a large-sized pump in the center, and the installation object 6 having an opening 16 provided on the side of the building 2 is installed. Position and install on top.

The base 1 is, for example, a large pump installation base, and has mounting screw holes 10 for attaching and detaching the holder 7 of the positioning device 3 and the base 1 for fixing the base 1 to the installation portion 6. Hardening agent injection holes 4 for injecting the hardening agent K are provided at predetermined positions. Further, on the side of the installation section 6 on the side of the building 2, a positioning jig 9 having pressing tools 9x and 9y for horizontally moving the positioning device 3 of the present invention is formed, and the main body 5 of the positioning device 3 is formed. End 12 of arm 19
It is provided so as to engage with x and 12y. This pressing tool 9
x and 9y are formed by pressing bolts intersecting in the horizontal direction and jacks of hydraulic pressure, pneumatic pressure, electric power, or the like.

At the same time, the filling agent 13 between the base 1 and the installation portion 6 is filled with the curing agent K all around the edge of the installation portion 6 on the central side.
To prevent the curing agent K from flowing out when it is poured into
A weir 14 made of an elastic material such as rubber is provided. The positioning device 3 is provided with a support member 8 that bears the weight of the base 1, a holder 7 that lifts and holds the base 1, and a metal fitting 18 that is used when the positioning device 3 is lifted by a crane or the like. is there. At the lower end of the support member 8, a movement assisting member 11 for reducing the horizontal frictional force is provided so that the base 1 can be horizontally moved easily when adjusting the position in the horizontal direction.

When the ball is rotatably arranged at the lower end of the support member 8, the movement assisting member 11 has a small frictional force and can move in any horizontal direction. The positioning becomes extremely easy. It should be noted that a plurality of balls may be provided when the shared load becomes large and it is difficult to support the ball alone. Also,
The movement assisting member 11 may be any one that facilitates horizontal movement while bearing the weight. The movement assisting member 11 includes a bearing alloy having a flat contact surface at the lower end of the support member 8, an impregnated bearing, Further, it is formed by providing a bearing material such as an industrial resin such as nylon, and if necessary through a lubricating oil film layer,
If a so-called plain bearing is formed so as to come into planar contact with a plate of a metal material or bearing material having a smooth surface arranged on the mounting table 6, a large shared load can be supported with a simple structure.

Further, when the holder 7 is formed by the height adjusting bolts, the base 1 can be mounted by using the mounting screw holes 10 of the base 1, and the base 1 can be lifted and the height can be increased. By rotating the adjustment bolt, the height and levelness of the base 1 can be easily adjusted. In addition, since the height / horizontality of the base 1 is usually determined by the heights of three positions, it is most preferable that the holders 7 are arranged at three positions at regular intervals which are the vertices of an equilateral triangle. Next, it is preferable to use the vertices of an isosceles triangle.
Depending on the shape and the load distribution of the platform 1, another triangular arrangement or four or more arrangements may be used.

Next, a positioning method using the positioning device 3 of the present invention as described above will be described. First, the platform 1 is hung and held by the holder 7 on the positioning device 3,
Using a crane or the like, the positioning device 3 is placed on the installation part 6 provided on the building 2 side, and the support member 8 of the positioning device 3 provides a space between the base 1 and the installation part 6. That is, the weight of the platform 1 and the positioning device 3 is supported in a state where the platform 1 is floated on the installation unit 6.

Next, if necessary, the height adjusting bolts forming the holder 7 are rotated to adjust the height and levelness of the base 1, and then fixed to the mounting portion 6 side. By using the pressing tools 9x and 9y of the positioning jig 9, that is, when the pressing tools 9x and 9y are formed by pressing bolts, the pressing bolt is turned, and when the pressing tools 9x and 9y are formed by jacks, the jack is extended, The ends 12x and 12y of the arm portion 19 of the positioning device 3 that abut against the pressing tools 9x and 9y are pressed to horizontally move the platform 1 together with the positioning device 3 to perform horizontal positioning. At this time, since the positioning device 3 holding the base 1 can be moved to the movement assisting member 11 with a smaller force, the overshooting amount is eliminated and the positioning can be easily performed with high accuracy.

Then, if necessary, the positioning in the height and the horizontal direction is repeated, and when the positioning is completed, a liner is provided in the lower part of the base 1, which is a hardening agent injection hole provided in the base 1. 4, the filling section surrounded by the base 1, the installation section 6, and the weir 14 provided in advance in the installation section 6.
Fill 13 and do. An example of this curing agent K is the curing agent "Product name: Chock First" sold by Harada Sangyo Co., Ltd., but this curing agent K is like resin or concrete, and has fluidity before hardening. It is large and can be poured, but after hardening over time, any material may be used as long as it has a solid rigidity capable of supporting the base 1.

After the hardening agent K is hardened and hardened,
The base 1 is separated from the holder 7 of the positioning device 3, the positioning device 3 is lifted and removed by a crane or the like, and the positioning jig 9 for installation is removed to remove the base 1
Complete the positioning and installation work. It should be noted that anchor bolts are provided in advance on the installation portion 6, the base 1 is positioned, and then the curing agent K is injected between the installation object 1 and the installation portion 6 as described above to be cured, and the anchor bolts are nuts. It may be possible to fix it more firmly by tightening with.

According to the above-mentioned device, since the positioning device 3 is provided with the crossed arm portions 19 extendedly arranged on the mounting portion 6 having the opening portion 16, the opening portion 16 of the mounting portion 6 is straddled. It is possible to lift and hold the fixture 1 with the holder 7 and work while checking the state of the fixture from the upper side. Moreover,
Since the support member 8 having the movement assisting member 11 at the lower end is provided so that the fixture 1 can be horizontally moved with a small force, and the fixture 1 is supported on the fixture 1 in a floating state, the weight of the base 1 is reduced. The support member 8 provided on the positioning device 3 bears the load, and the movement assisting member 11 allows the base 1 together with the positioning device 3 to be easily horizontally moved with a small force.
The positioning jig 9 fixed on the upper side is used for the arm portion 19 of the positioning device 3.
Since it can be engaged with the end portions 12x and 12y of the pressing member 9, the pressing member 9 provided on the installation portion 6 side and capable of pressing in a horizontal direction is pressed.
Using x and 9y, highly accurate positioning in the horizontal (X, Y) direction can be performed.

Further, the height (Z) direction of the base 1 can be adjusted with high accuracy by the height adjusting bolt which also serves as the holder 7 which serves to lift the base 1, and the height in the vertical direction can be adjusted. Since the adjustment function and the horizontal movement function are attached to one positioning device 3 and the base 1 is made detachable, it can be used for another base and is economical. In addition, even when there is a requirement for shielding effect, airtightness, or watertightness in a nuclear facility or the like and it is necessary to prevent a gap in the installation portion, the positioning device 3 is used to position the base 1 with high accuracy. If the curing agent K is injected and fixed in that state,
Since the gap is closed with the curing agent K without directly contacting the base 1 and the mounting portion 6, it is not necessary to finish the contact surfaces of the base 1 and the mounting portion 6 with high precision in order to bring them into close contact with each other. The working accuracy of these facing surfaces can be significantly reduced, and workability can be significantly improved.

Next, other embodiments are shown in FIGS. 3 and 4. In this positioning device 3, the main body 5 is opened so that the upper portion of the opening 15 of the base 1 is opened. Arm portions (19) are radially provided on the outer peripheral portion of the central working portion (20) provided with. With such a shape, it is possible to easily perform positioning and installation work even for an installation object having a shape protruding upward, such as a base 1 having equipment such as a large pump mounted in the opening portion 15, and the work efficiency is improved. Can be improved.

[0022]

As described above, according to the invention of claim 1, since the positioning device is provided with the intersecting arm portions extendedly arranged on the installation portion having the opening portion, the positioning device straddles the opening portion of the installation portion. Then, you can lift and hold the installation with the holder and work while checking the installation from the upper side.

Moreover, a supporting member having a movement assisting member at the lower end capable of horizontally moving the installation article with a small force is provided to support the installation article in a floating state on the installation section and to fix the positioning jig fixed on the installation section. Since the tool can be engaged with the end of the arm portion of the positioning device, the position in the horizontal (X, Y) direction can be easily adjusted and highly accurate positioning can be performed. Further, according to the invention of claim 2, since the main body of the positioning device is formed by providing the arm portion on the outer peripheral portion of the disk provided with the opening portion, it is possible to position the fixture projecting upward, and , Positioning is possible with the equipment pre-installed on the fixture, improving work efficiency.

Further, according to the invention of claim 3, since the movement assisting member is formed by providing the ball at the lower end portion of the supporting member, the movement is not only in one direction but also in all directions in the horizontal plane with a small force. Easy and highly accurate positioning is possible. Further, according to the invention of claim 4, the movement assisting member comprises:
Since the movement assisting member is formed by providing a bearing material having a flat contact surface on the lower end portion of the supporting member, it is possible to easily move not only in one direction but also in all directions in the horizontal plane with a small force. At the same time, a large load can be supported with a simple structure.

[Brief description of drawings]

FIG. 1 is a plan view showing a positioning device according to an embodiment of the present invention.

FIG. 2 is a sectional view showing an AA section in FIG. 1;

FIG. 3 is a plan view showing a positioning device according to another embodiment of the present invention.

FIG. 4 is a side view showing a BB cross section of FIG. 3;

[Explanation of symbols]

1 ... Platform (installation) 2 ... Building 3 ... Positioning device 4 ... Curing agent injection hole 6 ... Installation part 7 ... Holding tool 8 ... Supporting member 9 ... Positioning jig 9x, 9y ... Pressing tool 10 ... Mounting screw hole 11… Movement assisting member 12x, 12y… End 13… Filling part 14… Weir 15… Opening part (base) 16… Opening part (installation part) 17… Opening part (positioning device) 18… Hanging bracket 19… Arm part 20 ... Central working unit K ... Curing agent

Claims (4)

[Claims] 1. A positioning jig fixed on the mounting portion is engaged with an end portion of a main body having crossed arm portions extendedly arranged on the mounting portion having an opening, and is supported on a lower surface of the main body. A positioning device which is provided with a member to be supported on an installation part, and further which holds an installation object arranged in the opening by a holder provided on the main body, wherein the positioning jig has the main body in a horizontal plane. A positioning device characterized in that it is configured to be moved by a minute distance in two directions, and that the support member has a movement assisting member at its lower end for facilitating horizontal movement. 2. The positioning device according to claim 1, wherein the main body is formed by radially arranging arms around an outer periphery of a central working unit having an opening. 3. The positioning device according to claim 1, wherein the movement assisting member is formed by providing a ball at a lower end portion of a supporting member. 4. The positioning device according to claim 1, wherein the movement assisting member is formed by providing a bearing material having a planar contact surface on a lower end portion of the supporting member.