JP2022102377A - Drilling device for concrete panel - Google Patents

Abstract

To provide a drilling device for detecting the buried position of a buried metallic material which is buried at the inside of a concrete panel to correctly and swiftly perform drilling to the detected buried position.SOLUTION: A drilling device 1 comprises: a drilling apparatus holding part 13 for holding a drilling tool 11 and a metal detection apparatus 12 in a state in which the positional relation in the surface of an X-Y horizontal plane of them is fixed; and a drilling apparatus guide part 14. The drilling apparatus guide part 14 performs: first guide treatment in which the drilling apparatus holding part 13 is guided to the vicinity of the burying assumed position of a buried metal material 3; and second guide treatment in which, based on "true positional information" on the buried metallic material 3 detected by the metal detection apparatus 12 and "deviation information" showing the deviation in the horizontal position between the drilling tool 11 and the metal detection apparatus 12, the position of the drilling apparatus holding part 13 is adjusted so that the drilling tool 11 shall be located directly on the "actual buried position" of the buried metallic material 3.SELECTED DRAWING: Figure 2

Description

The present invention relates to a drilling device for concrete panels. The present invention specifically relates to a drilling device for opening an opening of an embedded metal piece embedded inside a concrete panel such as a lightweight cellular concrete (ALC) panel to the panel surface.

For example, in order to expose the opening (nut portion) of the embedded metal fitting (see Patent Document 1) embedded inside a concrete panel such as a lightweight cellular concrete (ALC) panel to the panel surface, concrete using a drill or the like is used. The panel is drilled. Since the position of the embedded metal cannot be visually recognized from the outside of the concrete panel, the work of estimating the drilling position based on the design value related to the embedded position of the embedded metal in the concrete panel and drilling is performed.

However, in reality, the drilling position and the nut position do not exactly match due to an error in the design value, and even if drilling is performed at the position according to the design value, there are many problems that the above-mentioned opening is not properly exposed. It was occurring. In order to eliminate such a problem, a means for accurately detecting the buried position of the opening of the embedded metal piece before drilling into the concrete panel has been sought.

As a technical means for searching the position of a buried object inside a concrete structure, for example, a method of inserting a detection rod equipped with a metal sensing sensor into a preliminary hole to search for reinforcing bars arranged in the concrete structure. (See Patent Document 2) and a method of inserting an ECT sensor into a drilling hole made in a concrete structure (see Patent Document 3) are known.

According to each of the above methods, it is possible to detect the position of the buried object inside the concrete panel. However, in order to ensure that the opening of the embedded metal piece embedded inside the concrete panel is opened to the panel surface, after detecting the burying position by each of the above means, the drilling tool is further placed at an appropriate opening position. It is necessary to go through the procedure of placing accurately in. It has been required to eliminate such complexity and further improve the work efficiency of the drilling work.

Japanese Unexamined Patent Publication No. 2000-248636 Japanese Unexamined Patent Publication No. 2007-178365 Japanese Unexamined Patent Publication No. 2009-168768

An object of the present invention is to provide a drilling device capable of detecting the buried position of an embedded metal piece embedded inside a concrete panel and accurately and promptly drilling the detected embedded position. do.

The present inventors have configured the drilling device so that the metal detector and the drilling tool are integrally held in the drilling device holding portion, and the metal detecting device detects the final placement position of the drilling tool. A drilling device that automatically adjusts based on "true position information" that indicates the actual burial position of the metal fitting and "deviation information" that indicates the difference in position between the drilling tool and the metal detection device. As a result, we came up with the idea that the above problems could be solved, and completed the present invention. Specifically, the present invention provides the following.

(1) A drilling device for a concrete panel, which holds a drilling tool, a metal detecting device, the punching tool, and the metal detecting device in a state where the positional relationship between the two is fixed on the XY horizontal plane. The drilling device holding portion and the drilling device guiding section for moving the drilling device holding section in the X direction and the Y direction on the XY horizontal plane are provided, and the drilling device guiding section is an assumed position for burying the embedded metal. The first induction process that guides the drilling device holding portion in the vicinity of, true position information indicating the actual embedding position of the embedded metal detected by the metal detecting device, and the drilling tool and the metal detection. A second induction process that automatically adjusts the position of the drilling device holding portion so that the drilling tool is located directly above the buried position based on the deviation information indicating the deviation of the horizontal position from the device. And, to do, drilling device.

According to the drilling device (1), it is possible to detect the burial position of the embedded metal material buried inside the concrete panel and pierce the detected burial position accurately and promptly.

(2) The drilling device according to (1), wherein the drilling device guiding unit automatically executes the first induction process and the second induction process continuously and automatically.

According to the drilling device of (2), in the drilling work by the drilling device according to (1), all the search work of the buried position of the embedded hardware position is automatically performed. This makes it possible to further improve the work efficiency of the drilling work for the concrete panel.

(3) The drilling device according to (2), wherein the drilling tool automatically executes the drilling process after the completion of the second induction process.

According to the drilling device of (3), in the drilling work by the drilling device according to (2), a series of operations from the search for the buried position of the embedded metal to the drilling are all automatically performed. This makes it possible to further improve the work efficiency of the drilling work for the concrete panel.

(4) The perforation according to any one of (1) to (3), wherein the metal detection device is a magnetic sensor composed of a plurality of magnetic sensor elements arranged in series along the X direction and / or the Y direction. Device.

According to the drilling device (4), the position of the opening of the embedded metal is detected more accurately when the second induction process is executed in the drilling operation by the drilling device according to any one of (1) to (3). Therefore, the drilling tool can be guided directly above the embedding position of the embedded metal with higher accuracy.

According to the present invention, it is a drilling device for opening an embedded metal object embedded in a concrete panel to the panel surface, and an opening of the embedded metal object embedded in the panel is formed on the panel surface. For exposure, it is possible to provide a drilling device capable of detecting the buried position of the panel of the embedded metal in the plane direction and promptly and accurately drilling at the detected position.

It is a figure which shows typically an example of the structure of the drilling apparatus of this invention. It is a figure which shows typically an example of the operation (first induction processing) of the drilling apparatus of FIG. FIG. 1 is a drawing schematically showing an example of the operation of the drilling device of FIG. 1 (a state in which a part of the second induction process is completed) (a drawing viewed from a direction orthogonal to the X direction of the panel to be processed). FIG. 1 is a drawing schematically showing an example of the operation of the drilling device of FIG. 1 (a state in which a part of the second induction process is completed) (a drawing viewed from a direction orthogonal to the Y direction of the panel to be processed). FIG. 1 is a drawing schematically showing an example of the operation of the drilling device (a state in which the second induction process is completed and the drilling process is being performed) (a drawing viewed from a direction orthogonal to the X direction of the panel to be processed). be. FIG. 1 is a drawing schematically showing an example of the operation of the drilling device (a state in which the second induction process is completed and the drilling process is being performed) (a drawing viewed from a direction orthogonal to the Y direction of the panel to be processed). be. It is a top view schematically showing the structure of the equipment holding of the drilling apparatus of FIG. It is a perspective view which shows an example of the embedded metal fittings embedded in the concrete panel which is the object of the drilling apparatus of this invention.

Hereinafter, embodiments of the "drilling device for concrete panels" (hereinafter, also simply referred to as "drilling device") of the present invention will be described. However, the present invention is not limited to the following embodiments.

<Punching device>
The drilling device 1 shown in each of FIGS. 1 to 6 is a device for opening an opening of an embedded metal fitting 3 embedded inside a concrete panel to the panel surface. As shown in each of the above figures, the drilling device 1 includes a punching tool 11, a metal detection device 12, a punching device holding portion 13, and a punching device guiding section 14 as a minimum configuration.

[Punching tool]
The drilling tool 11 has a function of making a hole in the concrete panel 2 in order to open an opening of the embedded metal fitting 3 embedded in the concrete panel 2 to be treated to the panel surface. For example, as shown in each of FIGS. 3 to 6, a drilling tool 11 having a rotating shaft 112 and a cutting blade 111 joined to the tip of one of the rotating shaft 112, or various other conventionally known concretes. The drilling device 1 can be configured by the punching tool for.

[Metal detector]
The metal detection device 12 is "true position information" indicating the "actual burial position" of the embedded hardware 3 buried inside the concrete panel from the outside of the concrete panel without contacting the concrete panel 2. Has a function to detect. The metal detection device 12 can be configured by various conventionally known metal detection devices having such a metal detection function. However, in the metal detection device constituting the drilling device 1, a plurality of magnetic sensor elements 121 are arranged in series along the X direction and / or the Y direction, or are arranged in a matrix shape along the XY direction. The device (magnetic sensor) 12 (see FIG. 7) is preferable. When the metal detection device is a magnetic sensor 12, it is more preferable that the plurality of magnetic sensor elements 121 are arranged in a staggered manner in a plurality of rows.

[Punching device holder]
The drilling device holding portion 13 holds the drilling tool 11 and the metal detecting device 12 in a state where the positional relationship between them on the XY horizontal plane is fixed. Regarding the material, shape, and configuration of the drilling device holding portion 13, the drilling tool 11 and the metal detecting device 12 are stable during all the operations of the drilling device 1 including the drilling operation for the concrete panel 2. It shall consist of a material, shape and composition having strength that can be held in the above-mentioned embodiment. It is more preferable that the drilling device holding portion 13 has a structure capable of holding the drilling tool 11 and the metal detection device 12 in a replaceable manner as needed.

[Punching equipment guide]
The drilling device guiding unit 14 guides the drilling device holding unit 13 so that the metal detection device 12 is located in the vicinity of the “assumed burial position” which is the design burial position of the embedded metal fitting 3. The guidance process and the second induction process that automatically adjusts the position of the drilling device holding portion 13 so that the drilling tool 11 is located directly above the "actual burial position" of the embedded metal 3. Do it sequentially.

The drilling device guiding unit 14 is provided with a control mechanism for controlling the operation so that the above-mentioned two-step guidance process is automatically executed. Such a control mechanism can be appropriately configured in a desired manner by, for example, a known electronic control device and various programs suitable for the control device.

(First induction process)
The first induction process by the drilling device guiding unit 14 is executed based on the "temporary position information" indicating the "assumed burial position" which is the design burial position of the embedded metal fitting 3. Further, this process is automatically executed by inputting "temporary position information" indicating the above-mentioned "assumed burial position" to the above-mentioned control mechanism for controlling the operation of the drilling device guiding unit 14. Is preferable.

Specific operation examples of the first induction process are as shown in FIGS. 1 and 2. That is, in this first induction process, the drilling device holding portion 13 is horizontally moved from the initial state of FIG. ₁ by approximately x1 in the X direction and approximately y1 in the Y direction, _respectively , as shown in FIG. As described above, the embedded hardware 3 is moved to the “assumed burial position” which is the design burial position.

(Second induction processing)
The second induction process by the drilling device guiding unit 14 includes "true position information" indicating the "actual burial position" of the embedded metal 3 detected by the metal detecting device 12, and the drilling tool 11 and the metal detecting device 12. It is executed based on "deviation information" indicating the deviation of the horizontal position of. Further, this process is automatically executed by inputting both of the above information to the control mechanism that controls the operation of the drilling device guiding unit 14.

The "true position information" indicating the "actual burial position" of the embedded metal 3 required for the final adjustment of the position of the drilling device holding portion 13 in the second induction process is embedded by the first induction process. It is detected by scanning around the same position with the metal detection device 12 guided to the vicinity of the "assumed burial position" of the hardware 3. For example, as shown in FIG. 7, the scanning is performed by placing the metal detection device (magnetic sensor) 12 in which the magnetic sensor elements 121 are arranged in a matrix in the vicinity of the “assumed embedding position” of the embedded metal 3. The above-mentioned "true position information" can be detected by appropriately performing linear motion or reciprocating motion a plurality of times as necessary.

Specific operation examples of the second induction process are as shown in FIGS. 3 to 6. That is, in this second induction process, first, as a preliminary induction in the first stage, as shown in FIGS. 3 and 4, the "actual burial position" of the embedded metal 3 detected by the metal detection device 12 is set. According to the "true position information" shown, the metal detection device 12 guides the drilling device holding portion 13 so as to be located directly above the "actual burial position" of the embedded metal fitting 3. Here, "the metal detection device 12 is located directly above the" actual burial position "of the embedded metal 3" is specifically defined in advance as shown in FIGS. 3 and 4. It means that the detection reference point 120 (see FIG. 7), which is an arbitrary fixed point near the center of the bottom surface of the metal fitting 3, is moved so as to be located directly above the buried position of the opening 30 of the embedded metal fitting 3.

Then, in the second induction process, as the final position adjustment following the preliminary induction, as shown in FIGS. 5 and 6, the deviation of the horizontal position between the perforator 11 and the metal detection device 12 is shown. Based on the "deviation information", the position of the drilling device holding portion 13 is finally adjusted so that the drilling tool 11 is located directly above the "actual burial position" of the embedded metal piece 3. It should be noted that "the drilling tool 11 is located directly above the" actual burial position "of the embedded hardware 3" is specifically described in the punching tool 11 (more accurately, each) as shown in FIGS. 5 and 6. It means that the tip center portion of the cutting blade 111 indicated by the black circle in the figure) is moved so as to be located directly above the center of the opening 30 of the embedded metal fitting 3.

For example, in the case shown in FIG. 7, (x ₀ , y ₀ ) is "deviation information" indicating the deviation of the horizontal position between the drilling tool 11 and the metal detection device 12. In this case, the final position adjustment is performed in such a manner that the position of the drilling device holding portion 13 is moved by x0 in the X direction and _{y0 in the} Y direction.

However, it is not essential that the preliminary guidance and the final position adjustment of the drilling device holding portion 13 are performed in order as separate operations. For example, apparently, after the first induction treatment, the second induction treatment is performed in such a manner that the drilling tool 11 comes directly directly above the above-mentioned "actual burial position" without going through the above-mentioned preliminary guidance. Even if it is found, both the above-mentioned "true position information" and the above-mentioned "deviation information" detected by the metal detection device 12 contribute to the determination of the final position of the position of the drilling device holding portion 13. As long as the final adjustment of the position of the drilling tool 11 is substantially performed, such an embodiment is naturally included in the technical scope of the present invention.

<How to drill concrete panels>
Hereinafter, an embodiment of a “concrete panel drilling method” (hereinafter, also simply referred to as a “concrete panel drilling method”) performed using the drilling device (drilling device 1) of the present invention will be described. In the following, as the most preferable embodiment of the present invention, the details of the embodiment of the case where the concrete panel 2 to be drilled is a lightweight cellular concrete panel (ALC panel) will be described.

In the "method of drilling a concrete panel" performed using the drilling device 1, as described above, the drilling device holding portion is subjected to a two-step guidance process by the drilling device guiding section 14, that is, a first guiding process and a second guiding process. 13 moves appropriately horizontally on the ALC panel 2, and as a result, the drilling tool 11 fixed to the drilling device holding portion 13 is directly above the "actual burial position" of the opening of the embedded metal 3. You will be guided to the exact position. Then, by continuously and promptly performing the drilling process of drilling the ALC panel 2 by the drilling tool 11 accurately arranged at this position, the embedded metal fitting 3 embedded in the concrete panel on the surface of the ALC panel 2 The opening 30 can be opened accurately and quickly. It is preferable that the first induction process and the second induction process are controlled so as to be continuously and automatically executed by the drilling device guiding unit 14.

(First induction process)
In the first induction process, the drilling device guiding section 14 guides the drilling device holding section 13 to the “assumed burial position” which is the design burial position of the embedded hardware 3 in the ALC panel 2. As described above, this first induction process is controlled based on the "temporary position information" indicating the "assumed burial position" which is the design burial position of the embedded hardware 3 in the ALC panel 2.

(Second induction processing)
In the second induction process following the first induction process, the drilling tool 11 is arranged at a position directly above the "actual burial position" of the embedded hardware 3 in the concrete panel (ALC panel) 2. The position of the drilling device holding portion 13 is finally adjusted. This second induction process shows the "true position information" indicating the "actual burial position" of the embedded metal 3 detected by the metal detection device 12, and the deviation of the horizontal position between the drilling tool 11 and the metal detection device 12. It is controlled based on "deviation information".

The "true position information" of the embedded metal 3 required for final adjustment of the position of the drilling device holding portion 13 in the second induction process is the "assumed buried position" of the embedded metal 3 by the first induction process. It is detected by scanning around the same position by the metal detection device 12 guided in the vicinity of.

(Punching process)
After the completion of the above two-step induction process, that is, by the first induction process and the subsequent second induction process, the drilling tool 11 was placed at a position directly above the "actual burial position" of the embedded hardware 3. Later, by pushing down the drilling tool 11 as it is, drilling is performed in the ALC panel 2 (FIGS. 5 and 6).

(Lightweight cellular concrete panel (ALC panel))
In the lightweight cellular concrete panel (ALC panel), which is a preferable object of the "method of drilling a concrete panel", for example, an embedded metal fitting 3 having a shape as shown in FIG. 8 is arranged in the panel in the manufacturing process. The material slurry is injected and foamed and hardened in a state of being fixed to the reinforcing bar, so that the embedded metal 3 can be obtained as an embedded ALC panel.

(Embedded hardware)
Further, as shown in FIGS. 8A and 8B, the embedded metal fitting 3 is for preventing the inflow of slurry at the time of panel manufacturing around the opening 30 at the tip of the nut portion of the embedded metal fitting 3. It is preferable that the cap 32 is attached. The main body 31 of the embedded metal may be any metal that is used by exposing the opening 30 to the panel surface in a state of being embedded in the inside of the ALC panel 2 or the like in advance, and is disclosed in the above-mentioned Patent Document 1. Various other known embedded metal objects, including embedded metal objects, are subject to the perforation process by the apparatus and method of the present invention without any particular limitation. The cap 32 is preferably made of a resin that can be easily perforated, but by forming the cap portion with a so-called rubber magnet such as an anisotropic rubber magnet, a magnetic sensor can be used to determine the horizontal position of the embedded metal. You can also make it easier to search.

1 Drilling device 11 Drilling tool 111 Cutting blade 112 Rotating shaft 12 Metal detection device (magnetic sensor)
121 Magnetic sensor element 120 Detection reference point 13 Drilling equipment holding part 14 Drilling equipment guiding part 2 Concrete panel (lightweight cellular concrete panel)
3 Embedded hardware 31 Embedded hardware body 32 Cap 30 Opening

Claims (4)

A drilling device for concrete panels
With a perforator,
With metal detection equipment,
A drilling device holding portion that holds the drilling tool and the metal detecting device in a state where the positional relationship between the two is fixed on the XY horizontal plane.
The drilling device holding portion is provided with a drilling device guiding portion for moving the drilling device holding portion in the X direction and the Y direction on the XY horizontal plane.
The drilling device guide portion is
The first induction process of inducing the drilling device holding portion in the vicinity of the assumed position of the embedded metal, and the first induction process.
The drilling tool is based on the true position information indicating the actual embedding position of the embedded metal detected by the metal detecting device and the deviation information indicating the deviation of the horizontal position between the drilling tool and the metal detecting device. A drilling device that performs a second induction process that automatically adjusts the position of the drilling device holding portion so that the drilling device is located directly above the buried position. The drilling device guiding unit automatically executes the first-leading process and the second-leading process continuously and automatically.
The drilling device according to claim 1. The drilling tool automatically executes the drilling process after the completion of the second induction process.
Is automatically executed continuously,
The drilling device according to claim 2. The metal detection device is a magnetic sensor composed of a plurality of magnetic sensor elements arranged in series along the X direction and / or the Y direction.
The drilling device according to any one of claims 1 to 3.

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